CN109016303B

CN109016303B - Extrusion molding machine for rubber

Info

Publication number: CN109016303B
Application number: CN201810745753.3A
Authority: CN
Inventors: 王佰亮; 温真容
Original assignee: Wenzhou Vocational Secondary School
Current assignee: Rizhao Guotong Rubber & Plastic Co ltd
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2020-06-23
Anticipated expiration: 2038-07-09
Also published as: CN109016303A

Abstract

The invention belongs to the technical field of forming equipment, and particularly discloses an extrusion forming machine for rubber, which comprises a workbench, a stand column, a transverse shaft, a transverse beam, a hydraulic cylinder, a pressing plate, a transverse rod, a supporting rod and a supporting plate, wherein two sides of the supporting plate are respectively provided with a baffle, an ejector rod, a pawl, a first rotating roller, a feeding conveying belt, a second rotating roller and a discharging conveying belt; the improved automatic lifting device is characterized in that a sliding cavity is formed in the workbench, a top plate is connected in the sliding cavity in a sliding mode, a spring is connected between the top plate and the inner wall of the sliding cavity, a top block used for pushing the top plate to move is arranged on the lower portion of the ejector rod, the end portion of the top plate is arranged in an inclined plane, and a groove is formed in the middle of the top plate located on the inclined plane. The invention is mainly used for extruding rubber to form, and solves the problem that the rubber cannot be automatically turned after being extruded and formed.

Description

Extrusion molding machine for rubber

Technical Field

The invention belongs to the technical field of forming equipment, and particularly discloses an extrusion forming machine for rubber.

Background

The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. The rubber has good wear resistance, high elasticity, tensile strength at break and elongation, so the rubber becomes necessary material for manufacturing airplanes, warships, automobiles, tractors, harvesters, water conservancy irrigation and drainage machines, medical appliances and the like.

When the rubber is applied to the manufacturing industry, the rubber is generally required to be processed and molded, a rubber molding extruder is required to be used in the rubber processing process, and the following problems are generally encountered in the rubber extrusion molding process: (1) after the rubber is extruded and molded by using a rubber extrusion molding machine, the equipment in the prior art does not invert the finished product, and the material needs to be turned over in a manual turning mode, so that the manual turning operation steps are more, and the processing efficiency is reduced; (2) when the mechanical material turning is adopted, power equipment is usually added, the energy consumption during processing is increased, and the production cost is increased.

Disclosure of Invention

The invention aims to provide an extrusion molding machine for rubber, which aims to solve the problem that the rubber cannot be automatically turned after being extruded.

In order to achieve the purpose, the basic scheme of the invention is as follows: the extrusion molding machine for the rubber comprises a workbench, wherein a stand column and a cross shaft rotationally connected with the workbench are arranged on the workbench, a cross beam is arranged on the stand column, a hydraulic cylinder with a piston rod arranged downwards is arranged on the cross beam, a pressing plate and a cross rod are arranged on the piston rod of the hydraulic cylinder, a ratchet wheel and two support rods rotationally connected with the cross shaft are arranged on the cross shaft, the two support rods are vertically and crossly arranged, a support plate is vertically arranged at the end part of each support rod, and baffles are arranged on two sides of each support plate; one end of the cross rod, which is far away from the piston rod, is provided with a top rod, and the lower part of the top rod is hinged with a pawl for pushing the ratchet wheel to rotate; the automatic feeding device comprises a workbench, a transverse shaft, a feeding conveying belt, a push rod, a power part and a power part, wherein two first rotating rollers are arranged on one side of the workbench, which is positioned on the transverse shaft, two feeding conveying belts are connected between the two first rotating rollers, two second rotating rollers are arranged on the other side of the workbench, which is positioned on the transverse shaft, a discharging conveying belt is connected between the two second rotating rollers, a transmission part is arranged on the first rotating rollers, the push rod drives the first rotating rollers to rotate through the transmission part, the power part is arranged between the first rotating rollers and the second rotating rollers, and the feeding conveying belts; the improved automatic lifting device is characterized in that a sliding cavity is formed in the workbench, a top plate is connected in the sliding cavity in a sliding mode, a spring is connected between the top plate and the inner wall of the sliding cavity, a top block used for pushing the top plate to move is arranged on the lower portion of the ejector rod, the end portion of the top plate is arranged in an inclined plane, and a groove is formed in the middle of the top plate located on the inclined plane.

The working principle of the basic scheme is as follows: before the device is used, a rubber raw material plate needing to be extruded and molded is placed on a feeding conveyor belt and a horizontal supporting plate; starting the hydraulic cylinder, controlling a piston rod of the hydraulic cylinder to extend downwards, driving a first rotating roller to rotate by a mandril through a control transmission part, driving a second rotating roller to rotate by a power part, starting the movement of a feeding conveyor belt and a discharging conveyor belt, and driving a rubber raw material plate to move by the movement of the feeding conveyor belt; the piston rod stretches out downwards to drive horizontal pole and ejector pin downstream, and the ejector pin in-process that moves down, kicking block promote the roof and move outside the slide opening, and the kicking block removes with the spring extension, and at this in-process, the kicking block removes the below of backup pad and supports the backup pad, and the bracing piece is located the recess and can not move, extrudees and the shaping along with the piston rod downstream clamp plate to the rubber raw material board in the backup pad. After the pressing plate is used for extruding and forming the rubber raw material plate on the supporting plate, a piston rod of the hydraulic cylinder is controlled to move upwards, the piston rod moves upwards to drive the ejector rod to move upwards, the ejector rod moves upwards to drive the ratchet wheel to rotate through the pawl, the ratchet wheel rotates to drive the cross shaft and the supporting rod to rotate, and the supporting rod in the vertical direction gradually inclines to one side of the discharging conveyor belt and is reversely buckled on the discharging conveyor belt in the rotating process of the supporting rod, so that the material turning effect is; in the process, the rubber raw material plate on the feeding conveyor belt falls on the supporting plate close to one side of the feeding conveyor belt, the rubber raw material plate falls between the baffle plates and rotates along with the supporting plate, the pawl drives the ratchet wheel and the cross shaft to rotate, the supporting plate and the rubber raw material plate are in a horizontal state, and the piston rod of the hydraulic cylinder is controlled to move downwards to carry out next processing.

The beneficial effect of this basic scheme lies in:

(1) in the extrusion forming process of the rubber raw material by using the scheme, the operation step of manually turning is avoided, the physical strength is saved, and the processing efficiency is improved;

(2) the automatic feeding and discharging device can realize automatic feeding and discharging in the rotating process of the supporting rod, the material changing efficiency is high, the power mechanism is few in the scheme, the energy consumption is low, and the processing cost is reduced.

Compared with the prior art, the automatic material turning device can realize automatic material turning in the machining process and has high machining efficiency.

Further, transmission portion is including setting up the carousel in first commentaries on classics roller one side, it has branch to articulate on the eccentric position of carousel, the one end that the carousel was kept away from to branch is articulated with the ejector pin. In the downward movement process of the ejector rod, the ejector rod drives the supporting rod to swing, the supporting rod drives the rotary table to rotate when swinging, the rotary table drives the first rotary roller to rotate when rotating, and the feeding conveyor belt can move by the up-and-down movement of the piston rod.

Further, the power part comprises belt pulleys arranged on the first rotating roller and the second rotating roller, and a belt is connected between the two belt pulleys. Through setting up like this, enable pay-off conveyer belt and exit conveyor and realize synchronous motion for the speed of pay-off and the ejection of compact equals, has prevented raw materials or finished product from piling up.

Furthermore, inclined guide plates are arranged on two sides of the discharging conveyor belt. The guide plate which is obliquely arranged enables finished products falling on the discharging conveyor belt to move to the middle of the conveyor belt, and meanwhile, the positions of the finished products are adjusted, so that subsequent packaging is facilitated.

Furthermore, a material storage box is arranged on one side, located on the feeding conveyor belt, of the workbench. Through setting up the stock box, can place the rubber raw material board in the stock box, be convenient for the pay-off.

Drawings

FIG. 1 is a schematic view of the structure of an embodiment of the extrusion press for rubber of the present invention;

FIG. 2 is a schematic longitudinal cross-section of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic view of the structure in the direction B in FIG. 3;

FIG. 5 is a schematic view of the discharge conveyor of FIG. 1 in the direction of the discharge conveyor C;

fig. 6 is a right side plan view of the top plate of fig. 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a workbench 1, a vertical column 2, a cross beam 3, a hydraulic cylinder 4, a pressing plate 5, a cross rod 6, a push rod 7, a supporting rod 8, a cross shaft 9, a supporting plate 10, a top block 11, a first rotating roller 12, a rotating disc 13, a supporting rod 14, a belt pulley 15, a belt 16, a material guide plate 17, a second rotating roller 18, a baffle plate 19, a storage box 20, a ratchet wheel 21, a pawl 22, a sliding cavity 23, a top plate 24, a feeding conveyor belt 25, a discharging conveyor belt 26 and a groove 27.

As shown in figures 1 and 2, the extrusion molding machine for rubber comprises a workbench 1, wherein two support frames are arranged on the left side of the workbench 1, first rotating rollers 12 are mounted on the support frames through bearings, a feeding conveyor belt 25 is connected between the two first rotating rollers 12, and a storage box 20 is mounted on the left side, located on the feeding conveyor belt 25, of the workbench 1. An upright post 2 is arranged in the middle of the workbench 1, a cross beam 3 is arranged at the upper end of the upright post 2, a hydraulic cylinder 4 with a downward piston rod is arranged on the cross beam 3, and a cross rod 6 and a pressing plate 5 are arranged on the piston rod as shown in a combined figure 3; logical groove and shaft hole have been seted up at 1 middle part of workstation, install cross axle 9 through the bearing in the shaft hole, coaxial ratchet 21 is installed to the left end of cross axle 9, and two alternately perpendicular bracing pieces 8 of arranging are installed through the bearing to the right-hand member of cross axle 9, and the backup pad 10 of arranging perpendicularly with bracing piece 8 is all welded at the both ends of every bracing piece 8, and backup pad 10 both sides all are equipped with baffle 19. Two support frames are also arranged on the right side of the through groove of the workbench 1, the support frames are provided with second rotating rollers 18 through bearings, a discharging conveyor belt 26 is connected between the two second rotating rollers 18, and as shown in the combined figure 5, two sides of the discharging conveyor belt 26 are both provided with material guide plates 17 which are inclined inwards; the feed conveyor 25 is located at a higher level than the exit conveyor 26. The belt pulleys 15 are mounted on the same side of the first rotating roller 12 and the second rotating roller 18 through bearings, and a belt 16 is connected between the two belt pulleys 15.

As shown in figures 2 and 3, the left end of the cross bar 6 is provided with a vertical push rod 7, and as shown in figure 4, the lower part of the push rod 7 is hinged with a pawl 22 for pushing the ratchet wheel 21 to rotate 90 degrees. The vertical groove has been seted up with ejector pin 7 relative position to workstation 1, and ejector pin 7 is located vertical groove, installs transmission portion on the first roller 12, and transmission portion is including setting up the carousel 13 in first roller 12 one side, and articulated on the eccentric position of carousel 13 have branch 14, and as shown in the combination figure 1, the one end that carousel 13 was kept away from to branch 14 is articulated with ejector pin 7. Smooth chamber 23 has been seted up on the position that lies in the shaft hole top in workstation 1, sliding connection has roof 24 in smooth chamber 23, be connected with the spring between roof 24 and the smooth chamber 23 inner wall, the spring makes roof 24 be located smooth chamber 23 when natural state, ejector pin 7 lower part is equipped with the kicking block 11 that is used for promoting roof 24 to remove, it is shown in the combination figure 6 to combine, the right-hand member of kicking block 11 to be the wedge, roof 24 tip is the inclined plane and arranges, the middle part that roof 24 is located the inclined plane is equipped with recess 27.

During specific implementation, the rubber raw material plate needing to be extruded is placed in the storage box 20, the discharge hole is formed in the lower portion of the storage box 20, the bottom of the storage box 20 is arranged in an inclined plane, the rubber raw material plate placed in the storage box 20 slides on the feeding conveying belt, and the rubber raw material plate is placed on the horizontal supporting plate 10. Starting the hydraulic cylinder 4, controlling a piston rod of the hydraulic cylinder 4 to extend downwards, starting the feeding conveyor belt 25 and the discharging conveyor belt 26 to move, and driving the rubber raw material plate to move by the movement of the feeding conveyor belt 25; the piston rod extends downwards to drive the cross rod 6 and the ejector rod 7 to move downwards, in the downward movement process of the ejector rod 7, the ejector block 11 pushes the ejector plate 24 to move outwards of the sliding hole, the ejector block 11 moves to stretch the spring, meanwhile, the ejector rod 7 drives the supporting rod 14 to swing, the supporting rod 14 swings to drive the rotating disc 13 and the first rotating roller 12 to rotate, and the first rotating roller 12 drives the second rotating roller 18 to rotate through the belt 16 when rotating; in the process, the top block 11 moves to the lower part of the support plate 10 to support the support plate 10, the support rod 8 is positioned in the groove 27 and cannot move, and the pressing plate 5 moves downwards along with the piston rod to extrude and form the rubber raw material plate on the support plate 10. After the pressing plate 5 extrudes the rubber raw material plate on the supporting plate 10, a piston rod of the hydraulic cylinder 4 is controlled to move upwards, the piston rod moves upwards to drive the ejector rod 7 to move upwards, the ejector rod 7 moves upwards to drive the ratchet wheel 21 to rotate through the pawl 22, the ratchet wheel 21 rotates to drive the cross shaft 9 and the supporting rod 8 to rotate, and in the rotating process of the supporting rod 8, the supporting rod 8 in the vertical direction gradually inclines to one side of the discharging conveyor belt 26 and is reversely buckled on the discharging conveyor belt 26, so that the material turning effect is realized; in the process, the rubber raw material plate on the feeding conveyor belt 25 falls on the support plate 10 close to the right side of the feeding conveyor belt 25, the rubber raw material plate falls between the baffle plates 19 and rotates along with the support plate 10, the pawl 22 drives the ratchet wheel 21 and the transverse shaft 9 to rotate 90 degrees, and the support plate 10 and the rubber raw material plate are in a horizontal state.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The extrusion molding machine for the rubber comprises a workbench and is characterized in that a stand column and a cross shaft which is rotatably connected with the workbench are arranged on the workbench, a cross beam is arranged on the stand column, a hydraulic cylinder with a piston rod arranged downwards is arranged on the cross beam, a pressing plate and a cross rod are arranged on the piston rod of the hydraulic cylinder, a ratchet wheel and two support rods which are rotatably connected with the cross shaft are arranged on the cross shaft, the two support rods are arranged in a vertical cross mode, a support plate is vertically arranged at the end part of each support rod, and baffles are arranged on two sides of each support plate; one end of the cross rod, which is far away from the piston rod, is provided with a top rod, and the lower part of the top rod is hinged with a pawl for pushing the ratchet wheel to rotate; the automatic feeding device comprises a workbench, a transverse shaft, a feeding conveying belt, a push rod, a power part and a power part, wherein two first rotating rollers are arranged on one side of the workbench, which is positioned on the transverse shaft, two feeding conveying belts are connected between the two first rotating rollers, two second rotating rollers are arranged on the other side of the workbench, which is positioned on the transverse shaft, a discharging conveying belt is connected between the two second rotating rollers, a transmission part is arranged on the first rotating rollers, the push rod drives the first rotating rollers to rotate through the transmission part, the power part is arranged between the first rotating rollers and the second rotating rollers, and the feeding conveying belts; the improved automatic lifting device is characterized in that a sliding cavity is formed in the workbench, a top plate is connected in the sliding cavity in a sliding mode, a spring is connected between the top plate and the inner wall of the sliding cavity, a top block used for pushing the top plate to move is arranged on the lower portion of the ejector rod, the end portion of the top plate is arranged in an inclined plane, and a groove is formed in the middle of the top plate located on the inclined plane.

2. The extrusion molding machine for rubber as claimed in claim 1, wherein the transmission part comprises a turntable disposed on one side of the first rotating roller, a supporting rod is hinged to an eccentric position of the turntable, and one end of the supporting rod, which is far away from the turntable, is hinged to the ejector rod.

3. The extrusion molding machine for rubber as claimed in claim 2, wherein the power section includes pulleys provided on the first rotating roller and the second rotating roller, a belt being connected between the pulleys.

4. The extrusion molding machine for rubber as claimed in claim 1, wherein the discharge conveyor belt is provided with inclined guide plates on both sides.

5. The extrusion molding machine for rubber as claimed in claim 1, wherein the work table is provided with a stock bin at a side of the feeding conveyor belt.