CN210362919U

CN210362919U - Full-automatic silk screen printing machine

Info

Publication number: CN210362919U
Application number: CN201920742399.9U
Authority: CN
Inventors: 温秀德; 温艺军; 明萧; 黎国茂
Original assignee: Shenzhen Jialiqiang Electronic Equipment Co ltd
Current assignee: Shenzhen Jialiqiang Electronic Equipment Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-04-21
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a full-automatic silk screen printing machine, include: the screen printing machine comprises a machine body shell, a rack, a screen printing mechanism and an angle adjusting device, wherein the upper end of the screen printing mechanism is mounted on a cross beam at the top of the rack through a mounting rack, and a lifting device, a lifting plate, a screen printing assembly and a screen printing screen plate assembly are arranged on the screen printing mechanism; the angle adjusting device is arranged below the silk-screen mechanism and comprises two guide plates which are fixed on the lower side beam of the frame and are respectively arranged on two sides of the silk-screen mechanism and a product conveying mechanism which is arranged between the two guide plates and can slide back and forth along the arc direction of the arc part of the guide plate. The utility model discloses a shuttle table formula feeding mechanism forms full-automatic silk screen printing mechanism with material loading, pay-off, silk screen printing and the integrated integration of unloading, improves product silk screen printing efficiency.

Description

Full-automatic silk screen printing machine

Technical Field

The utility model relates to a mechanical equipment, specific saying so relates to a full-automatic silk screen printing machine.

Background

The screen printer is widely applied to printing of products such as textiles, metal plates, plastics, leather, glass, ceramics and the like. The silk screen printing machine is used to print the characters and images on the printing plate and then to set the printing plate on the printing machine, and the ink is applied to the printing plate to transfer the characters and images to the workpiece via the scraper so as to copy the printed matter. The quality of images printed by the screen printer is very related to the movement process of the scraper, so the prior art still needs to be improved and developed.

SUMMERY OF THE UTILITY MODEL

To the deficiency among the prior art, the to-be-solved technical problem of the utility model lies in providing a full-automatic silk screen printing machine.

In order to solve the technical problem, the utility model discloses a following scheme realizes: a full-automatic silk screen printing machine includes:

a body housing;

the frame is arranged in the machine body shell;

this full-automatic silk screen printing machine still includes:

the upper end of the silk-screen mechanism is mounted on a cross beam at the top of the rack through a mounting frame, and a lifting device, a lifting plate, a silk-screen component and a silk-screen plate component are arranged on the silk-screen mechanism;

the angle adjusting device is arranged below the screen printing mechanism and comprises two guide plates which are fixed on a lower side beam of the frame and are respectively arranged on two sides of the screen printing mechanism and a product conveying mechanism which is arranged between the two guide plates and can slide back and forth along the arc direction of the arc part of the guide plate;

the driving end of the lifting device is downwards connected with the sliding plate, and the side of the sliding plate is connected with the lifting plate;

the screen printing component is laterally arranged on the upper part of the front side surface of the lifting plate and comprises a lifting driving mechanism for driving the whole screen printing component to do lifting action, a scraper component, a longitudinal scraping driving device for driving the scraper component to move longitudinally, and a transverse scraping driving device for driving the longitudinal scraping driving device and the scraper component to move left and right, and the lower end surfaces of the casings of the scraper component and the longitudinal scraping driving device are of detachable installation structures;

the screen printing screen plate component is laterally arranged at the lower part of the front side surface of the lifting plate and comprises a screen frame arranged right below the scraper component, a screen frame adjusting component for installing and fixing the screen frame and adjusting the position of the screen frame, and a screen frame transverse driving device for driving the screen frame adjusting component to move left and right;

the product conveying mechanism comprises an installation bottom plate which is arranged between two guide plates and can move along the arc parts of the two guide plates to form a rotation angle, and a conveying mechanism body which is installed on the installation bottom plate, wherein the installation bottom plate comprises:

the CCD positioning system is arranged on the side part of the screen printing station and is used for positioning and detecting the workpiece moving to the screen printing station;

the shuttle table type feeding mechanism is provided with two groups of feeding components, wherein one group of feeding components moves on a guide rail on the other group of feeding components, the two groups of feeding components are jointly meshed with the same variable-speed driving device, the variable-speed driving device is provided with two first gears with different diameters, the two first gears are respectively meshed with the two groups of feeding components, the two groups of feeding components are simultaneously driven to move in the same direction through the two first gears, the diameters of the two gears are different, the strokes of the two feeding components are different, and the operating distances of workpiece clamping devices on the two feeding components are different; one of the feeding assemblies is provided with a feeding device which is used for clamping and rotating the workpiece to a screen printing station, and the feeding device is provided with a workpiece clamping device and a multi-angle azimuth workpiece clamping structure; the other group of feeding assemblies is provided with a blanking device used for taking out the workpieces after silk screen printing, and is provided with a workpiece clamping device and a structure for clamping the workpieces in a multi-angle azimuth manner;

and the jacking devices are arranged on two sides of the shuttle table type feeding mechanism and used for jacking the front end and the rear end of the product after the product is conveyed to the jacking position through the shuttle table type feeding mechanism.

Furthermore, the lifting device comprises a lifting motor, a lifting frame and a sliding plate, wherein the lifting frame is a portal lifting frame, the lifting motor is installed on an upper top plate of the lifting frame, a first screw rod is connected with the driving end of the lifting motor downwards, a sliding block is connected onto the first screw rod in a threaded mode, and the sliding plate is installed on the sliding block;

the outer side surface of the lifting plate is provided with four guide rails from top to bottom, wherein the upper two guide rails are in one group, and the lower two guide rails are in one group;

the upper two guide rails are provided with transverse scraping driving devices which comprise first sliding block assemblies, first transverse screw rods and transverse scraping driving motors, the first sliding block assemblies are in threaded connection with the first transverse screw rods, the outer ends of the first transverse screw rods are connected with driving parts of the transverse scraping driving motors, the transverse scraping driving motors are horizontally installed at the right side ends of the front side surfaces of the lifting plates, first vertical guide rails are arranged on outer side plates of the first sliding block assemblies, and screen printing assemblies are arranged on the first vertical guide rails;

a screen frame transverse driving device is arranged on the lower two guide rails and comprises a screen frame driving motor, a second transverse lead screw and a second sliding block assembly, the screen frame driving motor is horizontally arranged at the right side end of the front side face of the lifting plate, the driving end of the screen frame driving motor is connected with the second transverse lead screw, the second transverse lead screw is in threaded connection with the second sliding block assembly, the second sliding block assembly is arranged on the lower two guide rails, and a screen frame adjusting assembly is connected to the outer side plate on the second sliding block assembly.

Furthermore, the lifting driving mechanism on the screen printing assembly comprises a first air cylinder and a longitudinal scraping driving device mounting plate, a vertical guide rail is arranged on a slide block side plate on the first slide block assembly, the longitudinal scraping driving device mounting plate is arranged on the vertical guide rail, the driving end of the first air cylinder is connected with the longitudinal scraping driving device mounting plate, and the lifting driving mechanism drives the whole screen printing assembly to ascend or descend;

indulge and scrape drive arrangement, install including the side indulge scrape on the drive arrangement mounting panel indulge scrape the support, install indulge and scrape the slide bar on the support and indulge and drive actuating cylinder, indulge and scrape the support upper plate body and be provided with spacing hole, indulge and scrape the installation piece sliding joint on driving actuating cylinder in on the slide bar, installation piece upper end is provided with the limiting plate and moves about spacing downthehole, indulge and scrape the telescopic link end fixing on driving actuating cylinder indulge scrape on the curb plate of drive arrangement mounting panel, it promotes through the flexible anti-promotion of telescopic link indulge scrape drive actuating cylinder and do longitudinal movement, indulge and scrape and drive actuating cylinder lower extreme and pass through.

Further, the scraper component comprises a scraper bracket, a linear guide rail, a guide rail connecting block, a linear guide rail fixing block, a scraper cylinder, a front rack, a rear rack, a second gear, a horizontal fine-tuning device, an angle fine-tuning device, a scraper clamping block, an ink return knife clamping block, a scraper and an ink return knife;

the scraper support is vertically installed on the lower end face of the detachable installation structure, a U-shaped opening is formed in the lower end of the scraper support, the second gear is connected in the U-shaped opening in a sleeved mode, linear guide rail fixing blocks are fixed on the front side face and the rear side face of the scraper support respectively, a vertical guide rail groove is formed in each linear guide rail fixing block, each linear guide rail is arranged in each guide rail groove, a guide rail connecting block is connected to the side portion of the upper end of one linear guide rail, the lower end of each guide rail connecting block is connected with a telescopic portion of the scraper cylinder, the scraper cylinder is connected to the scraper support in a side mode through a cylinder installation frame, and the guide rail connecting blocks are driven to ascend and descend through the telescopic portions;

the opposite side surfaces of the two linear guide rails are respectively fixed with a front rack and a rear rack which are respectively meshed with two sides of the second gear, the lower ends of the two linear guide rails are respectively fixed with an angle fine adjustment device connecting sleeve, the angle fine adjustment device connecting sleeve is connected with an angle fine adjustment device, the angle fine adjustment device is a U-shaped frame, wherein the inner side surface of the angle fine adjustment device at the front side is connected with a scraper clamping block with a downward direction, the inner side surface of the angle fine adjustment device at the rear side is connected with an ink return cutter clamping block with a downward direction, the scraper clamping block clamps a scraper, the ink return cutter clamping block clamps an ink return cutter, the inner side surfaces of the two angle fine adjustment devices are respectively provided with a horizontal fine adjustment device, the horizontal fine adjustment device comprises a cross rod fixed on the inner side surface of the U-shaped frame, the left side and the right side of the upper end surface and the, the lower ends of the two front adjusting screws are propped against the upper side end of the scraper clamping block, the two rear screws are propped against the upper side end of the ink return blade clamping block, and the horizontal positions of the scrapers or the ink return blades are adjusted by adjusting the left and right heights of the two adjusting screws.

Furthermore, the net frame adjusting assembly comprises a support rod horizontally fixed on the front side of the outer side plate on the second sliding block assembly and a net frame clamping assembly adjustably mounted at the left end and the right end of the support rod, adjusting rails are arranged at the left end and the right end of the support rod, and row spacing slide holes are formed in the adjusting rails; the net frame clamping assembly comprises an L-shaped clamping block clamped on the adjusting track and the line spacing slide hole, and horizontal mounting blocks laterally connected to the outer side ends of the L-shaped clamping block, wherein net frame clamping blocks are arranged on opposite sides of the two horizontal mounting blocks, and screws for clamping a net frame are arranged on the net frame clamping blocks.

Furthermore, two opposite guide plates are arranged on the frame side, a mounting bottom plate is arranged between the guide plates, the upper ends of the two guide plates form a concave arc surface, a plurality of mounting position adjusting holes are arranged on the plate body along the edge of the arc surface, each mounting position adjusting hole forms an arc line along the direction of the arc surface at the upper end of the guide plate, a rack which is also arc-shaped is fixed at the inner side end of each mounting position adjusting hole through a bolt, the tooth surface of the rack faces upwards, a first gear is meshed with the rack, the two first gears are connected through a connecting shaft, the outer side end of one first gear is connected with a second speed reducer through a shaft, the second speed reducer is arranged at the outer side of the guide plate, and the side part of the; the second speed reducer is laterally connected with a motor;

two outer side edges of the mounting bottom plate are connected with two downward locking plates, a shell of the second speed reducer is connected with the side edge of one locking plate through one locking plate, the locking plate is close to the outer side surface of the guide plate, a waist-shaped adjusting hole is formed in the locking plate, and after the waist-shaped adjusting hole moves, the mounting position adjusting hole is arranged in the area of the waist-shaped adjusting hole;

the inner side surface of the locking plate which is not on the same axis with the connecting shaft is axially connected with a thread rolling bearing, the rolling surface of the thread rolling bearing is arranged on the concave arc surface of the guide plate, the locking plate is provided with a waist-shaped adjusting hole, and after the waist-shaped adjusting hole moves, the mounting position adjusting hole is arranged in the area of the waist-shaped adjusting hole;

and a shuttle table limiting hole is formed in the plate body of the mounting bottom plate.

Furthermore, the shuttle table type feeding mechanism comprises two groups of feeding components and a variable speed driving device, wherein the two groups of feeding components are a lower plate feeding component and an upper plate feeding component respectively;

the lower plate feeding assembly comprises a lower position plate, a lower transmission rack, a shuttle table guide rail, a workpiece clamping device and a shuttle table limiting plate, wherein the lower position plate is arranged on the mounting bottom plate, the shuttle table limiting plate connected with the lower end of the lower position plate is arranged in the shuttle table limiting hole, a mounting groove is formed in the corner of the side surface of the lower position plate, the lower transmission rack is mounted in the mounting groove, the insection direction of the lower transmission rack faces the outer side surface, a blanking device is arranged on the left side of the plate surface of the lower position plate, the blanking device comprises a workpiece clamping device and a clamp rotating motor for driving the workpiece clamping device to rotate, and the shuttle table guide rail is arranged on the right side of the plate surface of the lower position;

the upper plate feeding assembly comprises an upper position plate, an upper transmission rack and a workpiece clamping device, wherein two sliding blocks are mounted at the lower end of the upper position plate, the two sliding blocks are arranged on the shuttle table guide rail, a mounting groove is formed in the corner in the same side direction of the upper position plate and the lower position plate, an upper transmission rack is arranged in the mounting groove, the insection direction of the upper transmission rack faces the outer side surface, and feeding devices are arranged on the left side and the right side of the surface of the lower position plate respectively, wherein each feeding device comprises a workpiece clamping device and a fixture rotating motor which is laterally connected with the workpiece clamping device;

the variable-speed driving device comprises a gear mounting frame, a gear assembly and a variable-speed driving motor for driving the gear assembly to rotate forward and backward, the gear mounting frame is fixed on the right side of the plate surface of the mounting bottom plate, the variable-speed driving motor is vertically mounted at the upper end of a frame body of the variable-speed driving device, the gear assembly is mounted at the upper end and the lower end of an inner cavity of the frame body, the gear assembly comprises a large-diameter gear meshed with the upper transmission rack and a small-diameter gear meshed with the lower transmission rack, the large-diameter gear and the small-diameter gear are coaxially connected, and the;

the variable-speed driving motor drives the large-diameter gear and the small-diameter gear to rotate, so that the large-diameter gear and the small-diameter gear drive the upper plate feeding assembly and the lower plate feeding assembly to move in the same direction at different speeds.

Further, the workpiece clamping device comprises a tensioning cylinder and clamping tools, the tensioning cylinder is a rotary driving clamping cylinder and is connected with two clamping tools through a connecting block, clamping openings on the left side and the right side of the two clamping tools are consistent in structure, and the two clamping openings on the same side are larger and smaller;

the feeding device comprises a workpiece clamping device and a clamp rotating motor, the clamp rotating motor is fixed on the surface of the upper shifting plate, and the driving end of the clamp rotating motor is connected to the tensioning cylinder.

Furthermore, the jacking device comprises two groups of jacking device mounting frames which are oppositely fixed on the mounting bottom plate, jacking guide rails, a jacking cylinder, a movable push plate and jacking parts arranged on the left side and the right side of the surface of the movable push plate, wherein the jacking guide rails, the jacking cylinder and the movable push plate are mounted on the two plate bodies at the upper end of the jacking device mounting frame;

the two groups of jacking device mounting frames are respectively arranged on the front side and the rear side of the shuttle table type feeding mechanism;

the two plate bodies on the left side and the right side of the upper end of the jacking device mounting rack are respectively provided with a jacking guide rail, the two jacking guide rails are mounted in parallel, the movable push plates are arranged on the two jacking guide rails through a sliding block, the back sides of the two movable push plates are respectively provided with a jacking cylinder, the two jacking cylinders are fixed in the middle of a cross beam of the jacking device mounting rack, the driving ends of the two jacking cylinders are opposite and are respectively connected to the middle of the side surface of each movable push plate, the left jacking part and the right jacking part of the movable push plate surface on the front side are jacking mouth components, and the left jacking part and the right jacking part of the movable push plate surface;

the top nozzle assembly comprises a support plate fixed on the movable push plate, two cylinders vertically mounted on the support plate, a top nozzle fixing part, two springs and a top nozzle, wherein the two cylinders are parallel to the movable push plate, the two springs are sleeved on the two cylinders firstly, and then the top nozzle fixing part is sleeved on the two cylinders;

the cylinder top tight portion is provided with a cylinder fixing seat, a rotary cylinder is connected to the rear end of the cylinder fixing seat, a rotary cylinder driving portion penetrates through the cylinder fixing seat, a workpiece bottom top tight tool is arranged at the end portion of the rotary cylinder driving portion, and the workpiece bottom top tight tool and the top nozzle are arranged in opposite directions.

Furthermore, a bin door is arranged on the machine body shell, the bin door is connected to the machine body shell in an upward opening mode, and a damping mechanism is arranged on the bin door.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses full-automatic silk screen printing machine's silk screen printing mechanism is provided with elevating gear, and elevating gear is used for each part on drive lifter plate and the lifter plate to do and reciprocates for adjust the height of silk screen printing, with the product silk screen printing on the platform feeding mechanism that shuttles back and forth of cooperation below.

2. The utility model discloses a what set up on the silk screen printing subassembly indulges and scrapes drive arrangement and be used for the vertical drive to scraper subassembly.

3. The utility model discloses indulge detachable mounting structure who scrapes drive arrangement's shell lower extreme setting for the silk screen printing direction of quick adjustment scraper, like horizontal silk screen printing, vertical silk screen printing, this detachable mounting structure also can be called as horizontal vertical silk screen printing switched structure.

4. The utility model discloses scraper subassembly drives a rack through a cylinder and is elevating movement, and this gear all meshes on a rotatable gear with another rack, and when the cylinder drove the rack of being connected with the cylinder and goes up, another rack descends, and when the cylinder drove the rack of being connected with the cylinder and descends, another rack ascended, and two rack lower extremes are scraper portion and ink return knife portion respectively, and one rises through two racks and falls, and then realizes the scraper and the switching between the ink return knife.

5. The utility model discloses angle adjusting device can be with anomalous product silk screen printing face fast speed adjusting to the horizontal plane to this solves the uneven problem of product silk screen printing face. The angle adjusting device is provided with the arc rack for curved deflector inboard in two upper ends, and be provided with two coaxial gears on the arc rack, one of them gear is by motor drive, gear revolve is by arc rack reverse thrust, gear drive motor and motor housing move along pitch arc direction, motor housing drives the mounting plate who is connected with motor housing along pitch arc motion, the tight device in top on the mounting plate and the tight work piece in top of the tight device in top also can remove the certain angle of back skew, make the face that needs the silk screen printing on the work piece face up, make things convenient for the silk screen printing.

6. The shuttle table type feeding mechanism drives the two groups of feeding components to move in the same direction through the two first gears, so that the strokes of the two feeding components are inconsistent through the different diameters of the two gears, and the running distances of the workpiece clamping devices on the two feeding components are inconsistent. Namely: when the right workpiece clamping device of the lower position plate rotates to feed and move to the screen printing station, the workpiece clamped by the workpiece clamping device on the left side of the lower position plate is clamped to the blanking station and then clamped, because the upper position plate and the lower position plate work simultaneously, when the upper position plate moves leftwards, the lower position plate clamps the screen printing workpiece on the blanking station to the blanking area, then the workpiece clamping device is rotated by the clamp rotating motor to enable the workpiece to be transferred to the conveying line, then the workpiece clamping device is loosened, the workpiece enters the conveying line and then returns, meanwhile, the upper position plate also returns to the left side, and the process is circulated and reciprocated, so that the structure integrating feeding, screen printing, conveying and blanking is achieved.

7. The tight device in top pushes up tightly in opposite directions through the tight subassembly in top on the tight device mounting bracket in two sets of tops, makes the work piece front and back end top tight, and the tight device in top drives through two cylinders, and two individual cylinder drive movable push plates move in opposite directions, and the tight portion in top on the movable push plate can be provided with a plurality ofly, sets up the number of the tight station in top according to the actual demand.

8. The feeding device and the discharging device are consistent in structure, the whole workpiece clamping device is driven to rotate through the clamp rotating cylinder, the rotating angle is adjustable, and different rotating angles are set according to different conveying lines, so that the optimal clamping effect is achieved.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the full-automatic screen printing machine of the present invention;

fig. 2 is a schematic side view of the full-automatic screen printing machine of the present invention;

fig. 3 is another schematic side view of the full-automatic screen printing machine of the present invention;

FIG. 4 is a schematic structural view of a screen printing mechanism according to the present invention;

FIG. 5 is a schematic view of the front side structure of the screen printing mechanism of the present invention;

fig. 6 is a schematic perspective view of the screen printing mechanism of the present invention;

FIG. 7 is a schematic side view of the screen printing mechanism of the present invention;

fig. 8 is a schematic structural view of the scraper assembly and the longitudinal scraping driving device at the upper end thereof according to the present invention;

FIG. 9 is a schematic view of the scraper assembly of the present invention;

FIG. 10 is a schematic side view of the doctor assembly of the present invention;

fig. 11 is a schematic view of the angle adjusting device and the product conveying mechanism thereon according to the present invention;

fig. 12 is a schematic view of two guide plates and the mounting components thereon according to the present invention;

fig. 13 is a schematic structural view of the shuttle table type feeding mechanism of the present invention;

fig. 14 is a schematic structural view of the jacking device of the present invention;

FIG. 15 is a schematic structural view of the workpiece clamping device of the present invention;

fig. 16 is a schematic structural view of the top nozzle assembly of the present invention;

fig. 17 is a schematic moving diagram of the shuttle table type feeding mechanism of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Example 1: the utility model discloses a full-automatic silk screen printing machine's concrete structure as follows:

referring to fig. 1-16, the utility model discloses a full-automatic screen printer, include:

a machine body housing 1;

a frame arranged in the machine body shell 1;

this full-automatic silk screen printing machine still includes:

the upper end of the silk-screen mechanism 3 is mounted on a cross beam at the top of the rack through a mounting rack, and a lifting device 31, a lifting plate 39, a silk-screen component and a silk-screen plate component are arranged on the silk-screen mechanism 3;

the angle adjusting device 2 is arranged below the screen printing mechanism 3 and comprises two guide plates 202 which are fixed on a lower side beam of the frame and are respectively arranged on two sides of the screen printing mechanism 3 and a product conveying mechanism which is arranged between the two guide plates 202 and can slide back and forth along the arc direction of the arc part of the guide plates 202;

the driving end of the lifting device 31 faces downwards and is connected with a sliding plate 313, and the side of the sliding plate 313 is connected with a lifting plate 39;

the screen printing component is laterally arranged on the upper part of the front side surface of the lifting plate 39 and comprises a lifting driving mechanism 32 for driving the whole screen printing component to do lifting action, a scraper component 38, a longitudinal scraping driving device 34 for driving the scraper component to move longitudinally, and a transverse scraping driving device 33 for driving the longitudinal scraping driving device 34 and the scraper component 38 to move left and right together, and the lower end surfaces of the casings of the scraper component 38 and the longitudinal scraping driving device 34 are detachable installation structures 40;

the screen printing screen plate component is laterally arranged at the lower part of the front side surface of the lifting plate 39 and comprises a screen frame 37 arranged right below the scraper component, a screen frame adjusting component 36 for installing and fixing the screen frame 37 and adjusting the position of the screen frame 37 and a screen frame transverse driving device 35 for driving the screen frame adjusting component 36 to move left and right;

the product conveying mechanism comprises an installation bottom plate 205 which is arranged between two guide plates 202 and can move along the arc parts of the two guide plates 202 to form a rotation angle, and the installation bottom plate 205 is installed on:

the shuttle table type feeding mechanism 500 is provided with two groups of feeding components, wherein one group of feeding components moves on a guide rail on the other group of feeding components, the two groups of feeding components are jointly meshed with the same variable-speed driving device, the variable-speed driving device is provided with two first gears with different diameters, the two first gears are respectively meshed with the two groups of feeding components, the two groups of feeding components are simultaneously driven to move in the same direction by the two first gears, the diameters of the two gears are different, the strokes of the two feeding components are different, and the operation distances of workpiece clamping devices on the two feeding components are different; one of the feeding assemblies is provided with a feeding device which is used for clamping and rotating the workpiece to a screen printing station, and the feeding device is provided with a workpiece clamping device and a multi-angle azimuth workpiece clamping structure; the other group of feeding assemblies is provided with a blanking device used for taking out the workpieces after silk screen printing, and is provided with a workpiece clamping device and a structure for clamping the workpieces in a multi-angle azimuth manner;

and the tightening devices 400 are arranged on two sides of the shuttle table type feeding mechanism and used for tightening the front end and the rear end of the product after the product is conveyed to the tightening position through the shuttle table type feeding mechanism.

A preferred technical solution of this embodiment: as shown in fig. 4-6, the lifting device 31 includes a lifting motor 311, a lifting frame 312, and a sliding plate, wherein the lifting frame 312 is a portal lifting frame, the lifting motor 311 is installed on the top plate thereof, the driving end of the lifting motor 311 is connected with a first screw rod downwards, the first screw rod is screwed with a sliding block, and the sliding plate is installed on the sliding block;

the lifting plate 39 is installed on the outer side surface of the sliding plate, the inner side surface of the lifting plate 39 is connected and arranged on the guide rails of the two side columns of the lifting frame 312 through a sliding block, four guide rails are arranged on the outer side plate surface of the lifting plate 39 from top to bottom, wherein the upper two guide rails 334 are in one group, and the lower two guide rails 354 are in one group;

the upper two guide rails 334 are provided with a transverse scraping driving device 33 which comprises a first sliding block component 333, a first transverse screw rod 332 and a transverse scraping driving motor 331, the first sliding block component 333 is in threaded connection with the first transverse screw rod 332, the outer end of the first transverse screw rod 332 is connected with a driving part of the transverse scraping driving motor 331, the transverse scraping driving motor 331 is horizontally arranged at the right side end of the front side surface of the lifting plate 39, a first vertical guide rail is arranged on the outer side plate of the first sliding block component 333, and a screen printing component is arranged on the first vertical guide rail;

the lower two guide rails 354 are provided with a screen frame transverse driving device 35, the screen frame transverse driving device 35 comprises a screen frame driving motor 351, a second transverse screw rod 352 and a second slider assembly 353, the screen frame driving motor 351 is horizontally arranged at the right side end of the front side surface of the lifting plate 39, the driving end of the screen frame driving motor 351 is connected with the second transverse screw rod 352, the second transverse screw rod 352 is in threaded connection with the second slider assembly 353, the second slider assembly 353 is arranged on the lower two guide rails 354, and the outer side plate of the second slider assembly 353 is connected with the screen frame adjusting assembly 36.

A preferred technical solution of this embodiment: as shown in fig. 6, the lifting driving mechanism 32 on the screen printing assembly includes a first air cylinder 3211 and a longitudinal scraping driving device mounting plate 323, a vertical guide rail is arranged on a slider side plate 322 on the first slider assembly 333, the longitudinal scraping driving device mounting plate 323 is arranged on the vertical guide rail, a driving end of the first air cylinder 321 is connected to the longitudinal scraping driving device mounting plate 323, and the lifting driving mechanism 32 drives the whole screen printing assembly to ascend or descend;

indulge and scrape drive arrangement 34, install including the side indulge scrape on the drive arrangement mounting panel 323 indulge scrape support 341, install indulge slide bar 343 on scraping support 341 and indulge and scrape drive actuating cylinder 342, indulge and scrape the support 341 upper plate body and be provided with spacing hole, indulge and scrape the installation piece of driving actuating cylinder 342 and connect in on the slide bar 343, installation piece upper end is provided with the limiting plate and moves about spacing downthehole, indulge the telescopic link end portion of scraping on driving actuating cylinder 342 and be fixed in indulge on scraping the curb plate of drive arrangement mounting panel 323, its flexible reverse promotion through the telescopic link indulge scrape drive actuating cylinder 342 and be longitudinal movement, indulge and scrape drive actuating cylinder 342 lower extreme and pass through detachable mounting structure 40 connects.

A preferred technical solution of this embodiment: as shown in fig. 8-10, the doctor assembly 38 includes a doctor bracket 393, a linear guide rail 381, a guide rail connection block 382, a linear guide rail fixing block 383, a doctor cylinder 384, a front rack 394, a rear rack 395, a second gear 385, a horizontal fine adjustment device 392, an angle fine adjustment device 387, a doctor clamping block 388, an ink return blade clamping block 391, a doctor blade 389, and an ink return blade 390;

the scraper support 393 is vertically installed on the lower end face of the detachable installation structure 40, a U-shaped opening is formed in the lower end of the scraper support 393, the second gear 385 is connected in the U-shaped opening in a sleeved mode, linear guide fixing blocks 383 are respectively fixed on the front side face and the rear side face of the scraper support 393, a vertical guide rail groove is formed in each linear guide fixing block 383, each linear guide 381 is arranged in each guide rail groove, a guide rail connecting block 382 is connected to the side portion of the upper end of one linear guide 381, the lower end of each guide rail connecting block 382 is connected with a telescopic portion of the scraper cylinder 384, the scraper cylinder 384 is connected to the scraper support 393 through a cylinder installation frame in a side mode, and the scraper cylinder drives the guide rail connecting blocks 382 to ascend and descend through the telescopic portions, so;

the facing side surfaces of the two linear guide rails 381 are respectively fixed with a front rack 394 and a rear rack 395, the front rack 394 and the rear rack 395 are respectively meshed with two sides of a second gear 385, the lower ends of the two linear guide rails 381 are respectively fixed with an angle fine-adjustment device connecting sleeve 386, the angle fine-adjustment device connecting sleeve 386 is axially connected with an angle fine-adjustment device 387, the angle fine-adjustment device 387 is a U-shaped frame, wherein the inner side surface of the angle fine-adjustment device 387 at the front side is connected with a scraper clamping block 388 facing downwards, the inner side surface of the angle fine-adjustment device 387 at the rear side is connected with an ink return blade clamping block 391 facing downwards, the scraper clamping block 388 clamps a scraper 389, the ink return blade clamping block 391 clamps an ink return blade 390, the inner side surfaces of the two angle fine-adjustment devices 387 are both provided with horizontal fine-adjustment devices 392, the horizontal fine-adjustment device 392 comprises a cross bar fixed on the inner side, adjusting screws are screwed in the through holes, the lower ends of the two adjusting screws at the front part are propped against the upper side end of the scraper clamping block 388, the two screws at the rear part are propped against the upper side end of the ink return knife clamping block 391, and the horizontal positions of the scrapers or the ink return knives are adjusted by adjusting the left and right heights of the two adjusting screws.

A preferred technical solution of this embodiment: as shown in fig. 6, the frame adjusting assembly 36 includes a support rod horizontally fixed on the front side of the outer panel of the second slider assembly 353, and a frame clamping assembly adjustably mounted on the left and right ends of the support rod, the left and right ends of the support rod are provided with adjusting rails, and the adjusting rails are provided with row spacing slide holes; the net frame clamping assembly comprises an L-shaped clamping block clamped on the adjusting track and the line spacing slide hole, and horizontal mounting blocks laterally connected to the outer side ends of the L-shaped clamping block, wherein net frame clamping blocks are arranged on opposite sides of the two horizontal mounting blocks, and screws for clamping a net frame are arranged on the net frame clamping blocks.

A preferred technical solution of this embodiment: as shown in fig. 11-12, two opposite guide plates 202 are mounted on the frame, a mounting base plate 205 is disposed between the guide plates, a concave arc is formed at the upper end of each guide plate 202, a plurality of mounting position adjusting holes are disposed on the plate body along the edge of the arc, each mounting position adjusting hole forms an arc along the arc of the upper end of each guide plate 202, a rack 201 which is also arc-shaped is fixed at the inner end of each mounting position adjusting hole through a bolt, the tooth surface of the rack 201 faces upward, the rack is engaged with a first gear 203, the two first gears 203 are connected through a connecting shaft 204, the outer end of one of the first gears 203 is connected with a second speed reducer 207 through a shaft, the second speed reducer 207 is disposed at the outer side of the guide plate, and an angle adjusting hand wheel 206 is connected to the side; the second speed reducer 207 is laterally connected with a motor;

two downward locking plates 208 are connected to two outer side edges of the mounting base plate 205, a housing of the second speed reducer 207 is connected to a side edge of one locking plate through one locking plate, the locking plate is close to the outer side surface of the guide plate, a waist-shaped adjusting hole is formed in the housing, and after the waist-shaped adjusting hole moves, the mounting position adjusting hole is arranged in the region of the waist-shaped adjusting hole;

the inner side surface of the locking plate 208 which is not on the same axis with the coupling shaft is axially connected with a thread rolling bearing 209, the rolling surface of the thread rolling bearing 209 is arranged on the concave arc surface of the guide plate 202, the locking plate 208 is provided with a waist-shaped adjusting hole, and after the waist-shaped adjusting hole moves, the installation position adjusting hole is arranged in the area of the waist-shaped adjusting hole;

a shuttle table limiting hole 215 is formed in the plate body of the mounting bottom plate 205.

A preferred technical solution of this embodiment: as shown in fig. 13, the shuttle table type feeding mechanism 500 includes two feeding assemblies, namely a lower plate feeding assembly and an upper plate feeding assembly, and a variable speed driving device;

the lower plate feeding assembly comprises a lower position plate 501, a lower transmission rack 505, a shuttle table guide rail 509, a workpiece clamping device 512 and a shuttle table limiting plate 502, wherein the lower position plate 501 is arranged on the mounting base plate 205, the shuttle table limiting plate 502 connected with the lower end of the lower position plate is arranged in the shuttle table limiting hole 215, a mounting groove is formed in the corner of the side surface of the lower position plate 501, the lower transmission rack 505 is mounted in the mounting groove, the insection direction of the lower transmission rack 505 faces the outer side surface, a blanking device is arranged on the left side of the plate surface of the lower position plate 501, the blanking device comprises a workpiece clamping device and a clamp rotating motor 510 for driving the workpiece clamping device to rotate, and the shuttle table guide rail 509 is arranged on the right side of the plate surface of the lower position plate 501;

the upper plate feeding assembly comprises an upper position plate 503, an upper transmission rack 504 and a workpiece clamping device 512, wherein two sliding blocks are mounted at the lower end of the upper position plate 503 and arranged on the shuttle table guide rail 509, a mounting groove is formed in the corner of the upper position plate 503 and the lower position plate 501 in the same side direction, the upper transmission rack 504 is arranged in the mounting groove, the insection direction of the upper transmission rack 504 faces the outer side face, and feeding devices are arranged on the left side and the right side of the plate surface of the lower position plate 501 respectively, wherein each feeding device comprises a workpiece clamping device 512 and a fixture rotating motor 510 which is laterally connected with the workpiece clamping device 512;

the variable-speed driving device comprises a gear mounting frame 506, a gear assembly and a variable-speed driving motor for driving the gear assembly to rotate forward and backward, wherein the gear mounting frame 506 is fixed on the right side of the plate surface of the mounting base plate 205, the variable-speed driving motor is vertically mounted at the upper end of the frame body, the gear assembly is mounted at the upper end and the lower end of the inner cavity of the frame body, the gear assembly comprises a large-diameter gear 507 meshed with the upper transmission rack 504 and a small-diameter gear 508 meshed with the lower transmission rack 505, the large-diameter gear 507 and the small-diameter gear 508 are coaxially connected, and the shaft end of the large-;

the variable speed driving motor drives the large-diameter gear 507 and the small-diameter gear 508 to rotate, so that the large-diameter gear 507 and the small-diameter gear 508 drive the upper plate feeding assembly and the lower plate feeding assembly to move in the same direction at different speeds.

A preferred technical solution of this embodiment: as shown in fig. 13 and 15, the workpiece clamping device 512 includes a tensioning cylinder 5121 and a clamping tool 5122, the tensioning cylinder 5121 is a rotary driving clamping cylinder, and is connected to two clamping tools 5122 through a connecting block, and the clamping openings on the left and right sides of the two clamping tools 5122 have the same structure, wherein the two clamping openings on the same side are one larger and one smaller;

the feeding device comprises a workpiece clamping device 512 and a clamp rotating motor 510, wherein the clamp rotating motor 510 is fixed on the surface of the upper shifting plate 503, and the driving end of the clamp rotating motor is connected to a tensioning cylinder 5121.

A preferred technical solution of this embodiment: as shown in fig. 14, the tightening device 400 includes two sets of tightening device mounting frames 401 oppositely fixed on the mounting base plate 205, tightening guide rails 405 mounted on two plates at the upper end of the tightening device mounting frame 401, a tightening cylinder 403, a movable push plate 404, and tightening parts disposed on the left and right sides of the plate surface of the movable push plate 404;

the two groups of jacking device mounting frames 401 are respectively arranged on the front side and the rear side of the shuttle table type feeding mechanism 500;

two plate bodies on the left side and the right side of the upper end of the jacking device mounting frame 401 are respectively provided with a jacking guide rail 405, the two jacking guide rails 405 are mounted in parallel, the movable push plates 404 are arranged on the two jacking guide rails 405 through sliding blocks, jacking cylinders 403 are arranged on the back sides of the two movable push plates 404, the two jacking cylinders 403 are fixed in the middle of a cross beam of the jacking device mounting frame 401, the driving ends of the two jacking cylinders are opposite and are respectively connected to the middle of the side surfaces of the movable push plates 404, the jacking parts on the left side and the right side of the surface of the movable push plate 404 on the front side are jacking nozzle assemblies, and the jacking parts on the left side and the right side of the surface of the movable;

the top nozzle assembly comprises a support plate fixed on the movable push plate 404, two cylinders vertically mounted on the support plate, a top nozzle fixing part 407, two springs 408 and a top nozzle 406, wherein the two cylinders are parallel to the movable push plate 404, the two springs 408 are sleeved on the two cylinders, the top nozzle fixing part 407 is sleeved on the two cylinders, the front end and the rear end of the top nozzle fixing part 407 are provided with two through holes, the two through holes are sleeved on the two cylinders through the through holes, the end surfaces of the two cylinders are abutted against the end parts of the two springs 408, the tail ends of the two cylinders are provided with two annular limiting blocks for limiting the top nozzle fixing part 407, and the top nozzle fixing part 407 is horizontally provided with the top;

the cylinder top tight part 402 is provided with a cylinder fixing seat, the rear end of the cylinder fixing seat is connected with a rotary cylinder, the rotary cylinder driving part penetrates through the cylinder fixing seat, the end part of the rotary cylinder driving part is provided with a workpiece bottom top tight tool, and the workpiece bottom top tight tool and the top nozzle 406 are oppositely arranged.

A preferred technical solution of this embodiment: as shown in fig. 1, a bin door 11 is arranged on the machine body shell 1, and the bin door 11 is connected to the machine body shell 1 in an upward-opening manner and is provided with a damping mechanism.

Embodiment 2, the operation principle of the screen printing mechanism is as follows:

before silk screen printing, need confirm whether violently scrape or indulge and scrape, violently scrape with indulge and scrape and adjust through detachable mounting structure 40, detachable mounting structure 40 is a mounting panel, indulges to scrape the shell bottom surface that drives actuating cylinder and be equipped with horizontal and longitudinal connecting hole, detachable mounting structure 40 is through manual screw of unloading, then adjusts 90 degrees position and fixes again, reaches horizontal fore-and-aft switching purpose.

Before silk-screen printing, the height of silk-screen printing needs to be adjusted to meet the requirements of silk-screen printing of workpieces, the height is adjusted by driving a sliding plate 313 to lift through a lifting motor 311, the sliding plate (313) drives a lifting plate 39 to ascend or descend, the lifting plate 39 drives all parts on the lifting plate to ascend and descend, and then the heights of a scraper and a return ink knife are adjusted.

Before the silk screen printing, adjustment scraper angle and scraper horizontal position, angle micromatic setting are used for adjusting the front and back angle of scraper, and horizontal micromatic setting is used for adjusting the lower extreme of scraper to horizontal position, and it is through the adjusting screw on the left and right sides of rotatory horizontal micromatic setting, and adjusting screw pushes down the tight scraper grip block of top and then makes the scraper lower extreme reach the horizontality.

Before silk-screen printing, the angle and the horizontal position of the ink returning knife are adjusted in a manner consistent with the manner of adjusting the angle and the horizontal position of the scraper.

Before silk screen printing, the position of the screen frame is adjusted, the X axial direction of the screen frame is adjusted to the corresponding position through the screen frame driving motor, the horizontal position of the screen frame is adjusted through the screen frame adjusting component, and manual adjustment is needed.

The silk-screen process takes the longitudinal direction of scraping in fig. 6 as an example.

Firstly, a longitudinal scraping driving cylinder 342 drives the scraper component 38 at the lower part to the foremost end;

step two, the lifting driving mechanism 32 drives the longitudinal scraping driving device 34 and the scraper component 38 to descend, meanwhile, the scraper component 38 drives the scraper to descend through the scraper cylinder, and the ink return blade ascends;

thirdly, pressing the screen frame by the scraper to enable the screen frame to be tightly attached to the workpiece;

fourthly, the longitudinal scraping driving cylinder 342 drives the scraper component 38 to reversely move to the rearmost end, and meanwhile, the scraper scrapes the silk screen to conduct silk screen printing;

step five, the scraper component 38 drives the scraper to ascend through the scraper cylinder, and the ink returning cutter descends;

sixthly, the longitudinal scraping driving cylinder 342 drives the scraper component 38 to move forwards to the foremost end;

and step seven, circulating the step two to the step six.

Example 3: the operation principle of the angle adjusting device is described by taking a bottle as an example in the embodiment.

As shown in fig. 12, before silk-screen printing, in order to perform silk-screen printing on the arc surface of the bottle body of the bottle, an angle adjustment device needs to be adjusted at first.

Step one, a motor drives a speed reducing motor 207 to rotate, and the speed reducing motor 207 drives two first gears 203 to rotate;

step two, the two first gears 203 are driven reversely by the arc-shaped rack 201, and then the two first gears drive the second speed reducing motor and the mounting bottom plate to move together and rotate for a certain angle;

and step three, because the shuttle table type feeding mechanism 500 is arranged on the mounting bottom plate, the shuttle table type feeding mechanism 500 is provided with the workpiece clamping device and the jacking device, and the jacking device jacks the bottle 100 tightly, so that the required screen printing part of the bottle faces upwards horizontally.

Example 3, as shown in fig. 11 to 17, the shuttle table type feeding mechanism 500 and the tightening device 400 operate according to the following principle:

at the silk screen printing in-process, need incessant material loading, pay-off and unloading, consequently, the utility model discloses a table feed mechanism 500 and the tight device 400 of top of shuttling station formula can be perfect solve this type of problem.

Firstly, feeding, wherein the length of the upper horizontal plate 503 is shorter than that of the lower horizontal plate 501, the workpiece clamping device on the rightmost side is the feeding device, the feeding device is provided with a clamp rotating motor 510, the clamp rotating motor 510 rotates to enable the workpiece clamping device to clamp the bottles 100 on the feeding conveying line and then rotate reversely, and the direction and the position of the bottles 100 on the conveying line are fixed, and the whole mounting plate body is in an inclined state during angle adjustment, so that the rotating angle of the clamp rotating motor 510 is not 90 degrees unless the silk-screen printing surface of the bottles is an upward plane. Assuming that the screen printing surface of the bottle is a cambered surface, the angle of the mounting base plate is adjusted, the clamp rotating motor 510 only needs to rotate by a set angle smaller than 90 degrees, and the workpiece clamping device clamps the bottle 100 and is reversely rotated to an initial position by the clamp rotating motor 510;

step two, the gear assembly works, the large-diameter gear and the small-diameter gear rotate in the same direction, and the upper shifting plate 503 and the lower shifting plate 501 are driven to move leftwards respectively and simultaneously;

step three, because the diameters of the large-diameter gear and the small-diameter gear are not consistent, the moving speed of the upper shifting plate 503 is high, and the moving speed of the lower shifting plate is low;

as shown in fig. 17, fig. 17 the utility model discloses shuttle desk-top feeding mechanism's removal schematic diagram, for example, fig. 17 is the top figure, a department is the material loading station, B department is the silk screen printing station, C department is the turnover station, two middle blackpoints are the tight portion in top, after the loading attachment material loading of rightmost side, go up the station board 503 and drive bottle 100 to B department, like the middle figure of fig. 17, at this moment, B portion to turnover station, a portion to silk screen printing station, C portion to unloading station, the tight device work in top this moment, push up the bottle of a portion in the middle figure tightly (if B department has the good bottle of silk screen printing, also can press from both sides the good bottle of the good B department of silk screen printing). After the bottles are fed into the silk-screen printing station, all the workpiece clamping devices are loosened, and meanwhile, the silk-screen printing mechanism works to conduct silk-screen printing on the bottles. The gear assembly drives the upper potential plate and the lower potential plate to move rightwards, the jacking device is still in a clamping state, when the part A workpiece clamping device returns to the feeding station (the lowest figure in figure 17), the part B workpiece clamping device reaches the screen printing station, the part A is fed, and the part B clamps the screen printed bottles (if the bottles exist at the part C, the workpiece clamping device clamps the bottles). The gear assembly drives the upper potential plate and the lower potential plate to move leftwards again, at the moment, the silk-screened bottle is conveyed to a turnover station (the middle part of a picture in figure 17, the part B), the jacking device clamps the bottle, each workpiece clamping device is loosened, the silk-screening mechanism conducts silk-screening on the part A, the turnover station at the part B already has a silk-screened bottle, then the gear assembly drives the upper potential plate and the lower potential plate to move rightwards (the lowest picture in figure 17), each workpiece clamping device clamps the bottle, the jacking device is loosened, the driving device drives leftwards again, the silk-screened bottle at the turnover station reaches a blanking station, and the silk-screened bottle is conveyed to a discharge assembly line through a rotating motor;

and step four, the actions from the step one to the step three are circulated, and the purpose of full-automatic silk-screen printing of feeding, silk-screen printing and blanking is achieved.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A full-automatic silk screen printing machine includes:

a body case (1);

the frame is arranged in the machine body shell (1);

it is characterized by also comprising:

the upper end of the silk-screen mechanism (3) is mounted on a cross beam at the top of the rack through a mounting rack, and a lifting device (31), a lifting plate (39), a silk-screen component and a silk-screen plate component are arranged on the silk-screen mechanism (3);

the angle adjusting device (2) is arranged below the silk-screen mechanism (3) and comprises two guide plates (202) which are fixed on a lower side beam of the rack and are respectively arranged on two sides of the silk-screen mechanism (3) and a product conveying mechanism which is arranged between the two guide plates (202) and can slide back and forth along the arc direction of the arc part of the guide plates (202);

the driving end of the lifting device (31) is downwards connected with a sliding plate (313), and the side of the sliding plate (313) is connected with a lifting plate (39);

the screen printing component is laterally arranged on the upper part of the front side surface of the lifting plate (39), and comprises a lifting driving mechanism (32) for driving the whole screen printing component to do lifting action, a scraper component (38), a longitudinal scraping driving device (34) for driving the scraper component to move longitudinally, and a transverse scraping driving device (33) for driving the longitudinal scraping driving device (34) and the scraper component (38) to move left and right, wherein the lower end surfaces of the shells of the scraper component (38) and the longitudinal scraping driving device (34) are detachable installation structures (40);

the screen printing screen plate component is laterally arranged at the lower part of the front side surface of the lifting plate (39), and comprises a screen frame (37) arranged right below the scraper component, a screen frame adjusting component (36) for installing and fixing the screen frame (37) and used for adjusting the position of the screen frame (37), and a screen frame transverse driving device (35) for driving the screen frame adjusting component (36) to move left and right;

the product conveying mechanism comprises an installation bottom plate (205) which is arranged between two guide plates (202) and can move along the arc parts of the two guide plates (202) to form a rotation angle, and the installation bottom plate (205) is installed on the installation bottom plate (205):

the shuttle table type feeding mechanism (500) is provided with two groups of feeding components, wherein one group of feeding components moves on a guide rail on the other group of feeding components, the two groups of feeding components are jointly meshed with the same variable-speed driving device, the variable-speed driving device is provided with two first gears with different diameters from top to bottom, the two first gears are respectively meshed with the two groups of feeding components, the two groups of feeding components are simultaneously driven to move in the same direction by the two first gears, and further, the diameters of the two gears are different, so that the strokes of the two feeding components are different, and further, the operating distances of workpiece clamping devices on the two feeding components are different; one of the feeding assemblies is provided with a feeding device which is used for clamping and rotating the workpiece to a screen printing station, and the feeding device is provided with a workpiece clamping device and a multi-angle azimuth workpiece clamping structure; the other group of feeding assemblies is provided with a blanking device used for taking out the workpieces after silk screen printing, and is provided with a workpiece clamping device and a structure for clamping the workpieces in a multi-angle azimuth manner;

and the tightening devices (400) are arranged on two sides of the shuttle table type feeding mechanism and used for tightly tightening the front end and the rear end of the product after the product is conveyed to the tightening position through the shuttle table type feeding mechanism.

2. The full-automatic silk screen printing machine of claim 1, characterized in that: the lifting device (31) comprises a lifting motor (311), a lifting frame (312) and a sliding plate, wherein the lifting frame (312) is a door-shaped lifting frame, the lifting motor (311) is installed on an upper top plate of the lifting frame, the driving end of the lifting motor (311) is downwards connected with a first screw rod, a sliding block is screwed on the first screw rod, and the sliding plate is installed on the sliding block;

the lifting plate (39) is installed on the outer side face of the sliding plate, the inner side face of the lifting plate (39) is connected and arranged on the guide rails of the two side columns of the lifting frame (312) through a sliding block, four guide rails are arranged on the outer side face of the lifting plate (39) from top to bottom, the upper two guide rails (334) are in one group, and the lower two guide rails (354) are in one group;

the upper two guide rails (334) are provided with transverse scraping driving devices (33) which comprise first sliding block assemblies (333), first transverse screw rods (332) and transverse scraping driving motors (331), the first sliding block assemblies (333) are in threaded connection with the first transverse screw rods (332), the outer ends of the first transverse screw rods (332) are connected with driving parts of the transverse scraping driving motors (331), the transverse scraping driving motors (331) are horizontally installed at the right side end of the front side face of the lifting plate (39), the outer side plate of each first sliding block assembly (333) is provided with a first vertical guide rail, and the first vertical guide rail is provided with a screen printing assembly;

a screen frame transverse driving device (35) is arranged on the lower two guide rails (354), the screen frame transverse driving device (35) comprises a screen frame driving motor (351), a second transverse screw rod (352) and a second slider assembly (353), the screen frame driving motor (351) is horizontally installed at the right side end of the front side face of the lifting plate (39), the driving end of the screen frame driving motor is connected with the second transverse screw rod (352), the second transverse screw rod (352) is in threaded connection with the second slider assembly (353), the second slider assembly (353) is arranged on the lower two guide rails (354), and a screen frame adjusting assembly (36) is connected to the outer side plate on the second slider assembly (353).

3. The full-automatic silk screen printing machine of claim 2, characterized in that: the lifting driving mechanism (32) on the silk screen assembly comprises a first air cylinder (321) and a longitudinal scraping driving device mounting plate (323), a vertical guide rail is arranged on a slider side plate (322) on the first slider assembly (333), the longitudinal scraping driving device mounting plate (323) is arranged on the vertical guide rail, the driving end of the first air cylinder (321) is connected to the longitudinal scraping driving device mounting plate (323), and the lifting driving mechanism (32) drives the whole silk screen assembly to ascend or descend;

indulge and scrape drive arrangement (34), install including the side indulge and scrape support (341), install of indulging on scraping drive arrangement mounting panel (323) slide bar (343) on indulgeing and scrape drive actuating cylinder (342), indulge and scrape the plate body and be provided with spacing hole on support (341), indulge and scrape the installation piece cunning on driving actuating cylinder (342) in on slide bar (343), installation piece upper end is provided with the limiting plate and moves about spacing downthehole, indulge and scrape the telescopic link tip of driving actuating cylinder (342) and be fixed in indulge on the curb plate of scraping drive arrangement mounting panel (323), its flexible reverse promotion through the telescopic link indulge scrape drive actuating cylinder (342) and do longitudinal movement, indulge and scrape drive actuating cylinder (342) lower extreme and pass through scraper subassembly (38) is connected to detachable mounting structure (40).

4. The full-automatic silk screen printing machine of claim 3, characterized in that: the scraper component (38) comprises a scraper support (393), a linear guide rail (381), a guide rail connecting block (382), a linear guide rail fixing block (383), a scraper cylinder (384), a front rack (394), a rear rack (395), a second gear (385), a horizontal fine-adjustment device (392), an angle fine-adjustment device (387), a scraper clamping block (388), an ink return knife clamping block (391), a scraper (389) and an ink return knife (390);

the scraper support (393) is vertically arranged on the lower end surface of the detachable mounting structure (40), the lower end of the scraper support is provided with a U-shaped opening, the second gear (385) is connected in the U-shaped opening in a sleeved mode, the front side surface and the rear side surface of the scraper support (393) are respectively fixed with a linear guide rail fixing block (383), the linear guide rail fixing block (383) is provided with a vertical guide rail groove, the linear guide rail (381) is arranged in the guide rail groove, the side part of the upper end of one linear guide rail (381) is connected with a guide rail connecting block (382), the lower end of the guide rail connecting block (382) is connected with the telescopic part of the scraper cylinder (384), the scraper cylinder (384) is laterally connected to the scraper support (393) by a cylinder mounting, the telescopic part drives the guide rail connecting block (382) to ascend and descend, and then drives a linear guide rail (381) connected with the guide rail connecting block (382) to do ascending and descending motion;

the opposite side surfaces of the two linear guide rails (381) are respectively fixed with a front rack (394) and a rear rack (395), the front rack (394) and the rear rack (395) are respectively meshed with two sides of a second gear (385), the lower ends of the front rack and the rear rack are respectively fixed with an angle fine-adjustment device connecting sleeve (386), the angle fine-adjustment device connecting sleeve (386) is axially connected with an angle fine-adjustment device (387), the angle fine-adjustment device (387) is a U-shaped frame, a scraper clamping block (388) facing downwards is connected on the inner side surface of the angle fine-adjustment device (387) on the front side, an ink returning cutter clamping block (391) facing downwards is connected on the inner side surface of the angle fine-adjustment device (387) on the rear side, a scraper (389) is clamped on the scraper clamping block (388), an ink returning cutter (390) is clamped on the ink returning cutter clamping block (391), and horizontal fine-adjustment devices (392) are arranged, the horizontal fine-adjustment device (392) comprises a cross rod fixed on the inner side surface of the U-shaped frame, upper and lower through holes are formed in the left side and the right side of the upper end surface and the lower end surface of the cross rod, adjusting screws are screwed in the through holes, the lower ends of the two adjusting screws in the front part are propped against the upper side end of the scraper clamping block (388), the two screws in the rear part are propped against the upper side end of the ink return knife clamping block (391), and the horizontal position of the scraper or the ink return knife is adjusted by adjusting the left height and the right.

5. The full-automatic silk screen printing machine of claim 2, characterized in that: the net frame adjusting assembly (36) comprises a support rod horizontally fixed on the front side surface of the outer side plate on the second sliding block assembly (353) and a net frame clamping assembly adjustably mounted at the left end and the right end of the support rod, adjusting tracks are arranged at the left end and the right end of the support rod, and row spacing slide holes are formed in the positions of the adjusting tracks; the net frame clamping assembly comprises an L-shaped clamping block clamped on the adjusting track and the line spacing slide hole, and horizontal mounting blocks laterally connected to the outer side ends of the L-shaped clamping block, wherein net frame clamping blocks are arranged on opposite sides of the two horizontal mounting blocks, and screws for clamping a net frame are arranged on the net frame clamping blocks.

6. The full-automatic silk screen printing machine of claim 1, characterized in that: the two opposite guide plates (202) are mounted on a rack, a mounting base plate (205) is arranged between the guide plates, the upper ends of the two guide plates (202) form a concave arc surface, a plurality of mounting position adjusting holes are formed in a plate body along the edge of the arc surface, each mounting position adjusting hole forms an arc line along the arc surface direction of the upper end of the guide plate (202), a rack (201) which is also arc-shaped is fixed at the inner side end of each mounting position adjusting hole through a bolt, the tooth surface of the rack (201) faces upwards, a first gear (203) is meshed with the rack, the two first gears (203) are connected through a connecting shaft (204), a second speed reducer (207) is connected to the outer side end of one first gear (203) in a shaft mode, the second speed reducer (207) is arranged on the outer side of the guide plates, and an angle adjusting hand wheel (206);

two downward locking plates (208) are connected to two outer side edges of the mounting base plate (205), a shell of the second speed reducer (207) is connected with the side edge of one locking plate through one locking plate, the locking plate is close to the outer side surface of the guide plate and is provided with a waist-shaped adjusting hole, and after the waist-shaped adjusting hole moves, the mounting position adjusting hole is arranged in the area of the waist-shaped adjusting hole;

the inner side surface of a locking plate (208) which is not positioned on the same axis with the coupling shaft is axially connected with a thread rolling bearing (209), the rolling surface of the thread rolling bearing (209) is arranged on the concave arc surface of the guide plate (202), a waist-shaped adjusting hole is arranged on the locking plate (208), and after the waist-shaped adjusting hole moves, the installation position adjusting hole is arranged in the area of the waist-shaped adjusting hole;

and a shuttle table limiting hole (215) is formed in the plate body of the mounting bottom plate (205).

7. The full-automatic silk screen printing machine of claim 6, characterized in that: the shuttle table type feeding mechanism (500) comprises two groups of feeding components and a variable speed driving device, wherein the two groups of feeding components are a lower plate feeding component and an upper plate feeding component respectively;

the lower plate feeding assembly comprises a lower position plate (501), a lower transmission rack (505), a shuttle table guide rail (509), a workpiece clamping device (512) and a shuttle table limiting plate (502), wherein the lower position plate (501) is arranged on the mounting base plate (205), the shuttle table limiting plate (502) connected with the lower end of the lower position plate is arranged in the shuttle table limiting hole (215), a mounting groove is formed in a side corner of the lower position plate (501), the lower transmission rack (505) is mounted in the mounting groove, the insection direction of the lower transmission rack (505) faces to the outer side face, a blanking device is arranged on the left side of the plate face of the lower position plate (501) and comprises the workpiece clamping device and a clamp rotating motor (510) for driving the workpiece clamping device to rotate, and the shuttle table guide rail (509) is arranged on the right side of the plate face of the lower position plate (501);

the upper plate feeding assembly comprises an upper position plate (503), an upper transmission rack (504) and a workpiece clamping device (512), wherein two sliding blocks are mounted at the lower end of the upper position plate (503), the two sliding blocks are arranged on the shuttle table guide rail (509), an installation groove is formed in the corner of the upper position plate (503) and the lower position plate (501) in the same side direction, an upper transmission rack (504) is arranged in the installation groove, the insection direction of the upper transmission rack (504) faces the outer side face, and a feeding device is arranged on the left side and the right side of the surface of the lower position plate (501), wherein the feeding device comprises the workpiece clamping device (512) and a clamp rotating motor (510) which is laterally connected with the workpiece clamping device (512);

the variable-speed driving device comprises a gear mounting rack (506), gear assemblies and a variable-speed driving motor for driving the gear assemblies to rotate forward and backward, wherein the gear mounting rack (506) is fixed on the right side of the plate surface of the mounting bottom plate (205), the variable-speed driving motor is vertically mounted at the upper end of the rack body, the gear assemblies are mounted at the upper end and the lower end of the inner cavity of the rack body, each gear assembly comprises a large-diameter gear (507) meshed with the upper transmission rack (504) and a small-diameter gear (508) meshed with the lower transmission rack (505), the large-diameter gear (507) is coaxially connected with the small-diameter gear (508), and the shaft end of the large-diameter gear;

the variable-speed driving motor drives the large-diameter gear (507) and the small-diameter gear (508) to rotate, so that the large-diameter gear (507) and the small-diameter gear (508) drive the upper plate feeding assembly and the lower plate feeding assembly to move in the same direction at different speeds.

8. The full-automatic silk screen printing machine of claim 7, characterized in that: the workpiece clamping device (512) comprises a tensioning cylinder (5121) and clamping tools (5122), wherein the tensioning cylinder (5121) is a rotary driving clamping cylinder and is connected with the two clamping tools (5122) through a connecting block, clamping openings on the left side and the right side of the two clamping tools (5122) are consistent in structure, and the two clamping openings on the same side are one large and one small;

the feeding device comprises a workpiece clamping device (512) and a clamp rotating motor (510), wherein the clamp rotating motor (510) is fixed on the surface of the upper shifting plate (503), and the driving end of the clamp rotating motor is connected to a tensioning cylinder (5121).

9. The full-automatic silk screen printing machine of claim 7, characterized in that: the jacking device (400) comprises two groups of jacking device mounting frames (401) which are oppositely fixed on the mounting bottom plate (205), jacking guide rails (405) which are mounted on two plate bodies at the upper end of each jacking device mounting frame (401), a jacking cylinder (403), a movable push plate (404) and jacking parts which are arranged on the left side and the right side of the plate surface of the movable push plate (404);

the two groups of jacking device mounting frames (401) are respectively arranged at the front side and the rear side of the shuttle table type feeding mechanism (500);

the two plate bodies on the left side and the right side of the upper end of the jacking device mounting frame (401) are respectively provided with a jacking guide rail (405), the two jacking guide rails (405) are mounted in parallel, the movable push plates (404) are arranged on the two jacking guide rails (405) through sliding blocks, jacking cylinders (403) are arranged on the back sides of the two movable push plates (404) in opposite directions, the two jacking cylinders (403) are fixed in the middle of a cross beam of the jacking device mounting frame (401), the driving ends of the two jacking cylinders are opposite and are respectively connected to the middle of the side surface of the movable push plate (404), the jacking parts on the left side and the right side of the plate surface of the movable push plate (404) on the front side are jacking nozzle assemblies, and the jacking parts on the left side and the right side of the plate surface of;

the top nozzle assembly comprises a support plate fixed on the movable push plate (404), two cylinders perpendicular to the support plate, a top nozzle fixing part (407), two springs (408) and a top nozzle (406), wherein the two cylinders are parallel to the movable push plate (404), the two springs (408) are sleeved on the two cylinders, the top nozzle fixing part (407) is sleeved on the two cylinders, two through holes are formed in the front end and the rear end of the top nozzle fixing part (407) and sleeved on the two cylinders through the through holes, the end surfaces of the two cylinders abut against the end parts of the two springs (408), two ring limiting blocks are arranged at the tail ends of the two cylinders and used for limiting the top nozzle fixing part (407), and the top nozzle fixing part (407) is horizontally provided with the top nozzle (406);

the cylinder top tight portion (402) is provided with a cylinder fixing seat, a rotary cylinder is connected to the rear end of the cylinder fixing seat, a rotary cylinder driving portion penetrates through the cylinder fixing seat, a workpiece bottom top tight tool is arranged at the end portion of the rotary cylinder driving portion, and the workpiece bottom top tight tool and the top nozzle (406) are arranged oppositely.

10. The full-automatic silk screen printing machine of claim 1, characterized in that: the machine body shell (1) is provided with a bin door (11), the bin door (11) is connected to the machine body shell (1) in an upward-opening mode, and a damping mechanism is arranged on the bin door.