CN223001056U - A guide device for plastic sheet extruder - Google Patents

Abstract

The utility model relates to the technical field of guides for plastic sheet extruders, and specifically to a guide device for plastic sheet extruders, wherein the guide device body includes two support plates respectively arranged on both sides of a conveyor and arranged along the output direction of the conveyor, and a plurality of guide wheels capable of contacting the side of the plastic sheet are distributed on the support plates in the extended length direction; the guide device body also includes a movable plate arranged on both sides of the conveyor and capable of supporting the support plate, and the guide device body also includes a frame arranged directly below the extruder body, and a driving mechanism capable of driving the movable plates on both sides to move synchronously is also arranged between the frame and the movable plate. The utility model guides the plastic sheet by arranging guide wheels on both sides of the conveyor, thereby effectively avoiding the wear of the side of the plastic sheet due to friction.

Description

Guiding device for plastic plate extruder

Technical Field

The utility model relates to the technical field of guiding for plastic plate extruders, in particular to a guiding device for a plastic plate extruder.

Background

In the production of plastic sheet materials, extruders are an indispensable key device. However, existing plastic sheet extruders often face challenges during production, particularly in guiding and positioning the sheet. These problems not only affect the production efficiency but may also lead to instability of the product quality.

Chinese patent CN217622091U discloses a guiding device for plastic plate extruder, and relates to the technical field of plastic plate guiding. This guider for plastic sheet extruder, the upper surface fixedly connected with of supporting seat has two mounting panels, and the inner wall of two mounting panels all is provided with the spring, and one side fixedly connected with two sliding columns that supporting seat and two mounting panels are close to, and two sliding columns keep away from the one end swing joint of supporting seat has two cuboid, and this patent is through being provided with the baffle in conveyer's both sides, through the side contact of baffle and plastic sheet to retrain plastic sheet to conveyer's central point.

In this prior art, the plastic sheet is restrained to the center of the conveyor by providing the baffles on both sides of the conveyor, and by contacting the sides of the plastic sheet with the baffles, however, such conventional guiding methods expose significant limitations in practical applications. Specifically, the material characteristics of the plastic sheet material during the process of high-temperature extrusion and rapid cooling and shaping are such that the edge of the sheet material inevitably generates a large friction force when the edge of the sheet material is in continuous contact with the rigid baffle. The friction force not only increases the energy consumption of plate conveying, but also is critical to cause physical abrasion to the edges of the plastic plates, so that burrs, scratches, deformation and other defects appear on the edges of the plates. These defects not only affect the appearance quality of the plastic sheet, but may also reduce its structural strength and durability, thereby adversely affecting subsequent processing or service performance.

Disclosure of utility model

The utility model aims to provide the guiding device for the plastic plate extruder, which is used for guiding the plastic plate by arranging the guiding wheels on the two sides of the conveying device, so that the abrasion phenomenon of the side surface of the plastic plate caused by friction is effectively avoided.

The utility model provides a guiding device for a plastic plate extruder, which comprises a conveying device upper guiding device body arranged at a discharge end of a cooling device on an extruder body, wherein a forming die is further arranged between the discharge end of the extruder body and the cooling device, the guiding device body comprises two supporting plates which are respectively arranged at two sides of the conveying device and are arranged along an output direction of the conveying device, a plurality of guiding wheels which can be in contact with the side surfaces of the plastic plate are distributed on the supporting plates along the length direction of the supporting plates, the guiding device body further comprises moving plates which are arranged at two sides of the conveying device and can be used for supporting the supporting plates, the guiding device body further comprises a frame which is arranged under the moving plates, and a driving mechanism which can be used for driving the moving plates at two sides to synchronously move is further arranged between the frame and the moving plates. One side of the supporting plate, which is far away from the guide wheel, is provided with a sliding rod, and the sliding rod can be arranged in the moving plate in a sliding way. Preferably, the driving mechanism comprises a gear rotationally arranged at the center of the top of the frame, the driving mechanism further comprises two racks respectively arranged at the bottom of the moving plate, the racks are meshed with the gear, the guiding device body further comprises a telescopic driving piece fixed at the top of the frame, the output end of the telescopic driving piece is connected with one of the racks, and the telescopic driving piece is parallel to the racks.

Preferably, the driving mechanism comprises at least two sliding rails arranged at the top of the frame, and two groups of sliding blocks respectively connected with the bottom of the movable plate are arranged on the sliding rails in a sliding manner.

Preferably, the cross section of the moving plate is in an L shape.

Compared with the prior art, the utility model has the beneficial effects that the supporting plates capable of synchronously moving are arranged on the two sides of the conveying device, so that the guiding of the plastic plate is realized. In particular, the support plate is provided with a number of guide wheels along its length, which can be brought into contact with the sides of the plastic sheet. In the plastic plate conveying process, the guide wheels can rotate freely under the action of the plastic plate, so that the abrasion phenomenon of the side face of the plastic plate due to friction is effectively avoided. In addition, in order to further improve stability and safety of the guide device, a buffer spring is provided between the support plate and the moving plate. When the guide wheel is contacted with the side surface of the guide wheel along with the movement of the plastic plate, the buffer spring can absorb and disperse the instant extrusion force, so that the plastic plate is prevented from being extruded and damaged due to overlarge extrusion force. This design not only improves the durability of the guide, but also ensures the integrity and quality stability of the plastic sheet during transport.

Drawings

FIG. 1 is a first perspective view of a guide device for a plastic sheet extruder according to the present utility model;

FIG. 2 is a second perspective view of a guide device for a plastic sheet extruder according to the present utility model;

FIG. 3 is a schematic perspective view showing a conveying device and a guide body of a guide for a plastic sheet extruder according to the present utility model;

fig. 4 is a first perspective view showing the structure of a guide body of a guide for a plastic sheet extruder according to the present utility model;

Fig. 5 is a second perspective view showing the structure of a guide body of a guide for a plastic sheet extruder according to the present utility model;

Fig. 6 is a schematic view showing the structure of the guide body of the guide device for the plastic sheet extruder according to the present utility model when the support plate, the guide wheel, the slide bar and the buffer spring are assembled.

The drawing comprises a drawing No. 1, an extruder body, no. 11, a forming die, no. 12, a cooling device, no. 2, a conveying device, no. 3, a guiding device body, no. 31, a supporting plate, no. 311, a guiding wheel, no. 312, a sliding rod, no. 313, a buffer spring, no. 32, a moving plate, no. 33, a driving mechanism, no. 331, a sliding rail, no. 3311, a sliding block, no. 332, a rack, no. 333, a telescopic driving piece, no. 334, a gear, no. 34 and a rack.

Detailed Description

The utility model will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the utility model and the specific objects and functions achieved.

Referring to fig. 1 to 6, the utility model provides a guiding device for a plastic plate extruder, which comprises a guiding device body 3 arranged on a conveying device 2 of a discharging end of a cooling device 12 on an extruder body 1, a forming die 11 is arranged between the discharging end of the extruder body 1 and the cooling device 12, the guiding device body 3 comprises two supporting plates 31 respectively arranged on two sides of the conveying device 2 and along an output direction of the conveying device 2, a plurality of guiding wheels 311 capable of being contacted with a side surface of the plastic plate are distributed on the supporting plates 31 along a length direction of extension, and molten plastic is extruded by the extruder body 1, extruded by the forming die 11 and then enters the cooling device 12 for cooling and shaping. The shaped plastic plate is conveyed to a subsequent processing procedure by a conveying device 2. In the conveying process, the guide wheels 311 of the guide device body 3 are in contact with the side surfaces of the plastic plates and rotate freely, so that the plastic plates are ensured to be always kept at the center position of the conveying device 2, and stable and continuous conveying of the plastic plates is realized.

The guiding device body 3 comprises moving plates 32 which are arranged at two sides of the conveying device 2 and can be used for supporting the supporting plate 31, the guiding device body 3 further comprises a rack 34 which is arranged right below the supporting plate 31, and a driving mechanism 33 which can be used for driving the moving plates 32 at two sides to synchronously move is arranged between the rack 34 and the moving plates 32.

In the whole working process of the plastic plate extruder, when molten plastic is extruded by the extruder body 1 and is molded by the molding die 11, the molten plastic enters the cooling device 12 for cooling and shaping. The shaped plastic sheet is transported by the conveyor 2, and during the transport, the guiding device body 3 starts to function. The driving mechanism 33 drives the moving plate 32 to move, and adjusts the position of the supporting plate 31 so that the guide wheel 311 contacts the side surface of the plastic plate. Along with the operation of the conveying device 2, the guide wheels 311 freely rotate to restrict the plastic plate to the central position of the conveying device 2, so that the plastic plate is prevented from shifting and shaking in the conveying process, the plastic plate is ensured to be stably conveyed to the subsequent processing procedure, and the production efficiency and the product quality of the whole plastic plate extruder are improved.

A slide bar 312 is provided on a side of the support plate 31 remote from the guide wheel 311, and the slide bar 312 is slidably provided in the moving plate 32. The slide bar 312 is sleeved with a buffer spring 313, one end of the buffer spring 313 is contacted with the support plate 31, and the other end of the buffer spring 313 is contacted with the inner side of the moving plate 32. The cross section of the moving plate 32 takes an "L" shape.

The main function of the buffer spring 313 is to play a buffering role when the guide wheel 311 contacts with the side of the plastic sheet. During the plastic sheet conveying process, when the guide wheel 311 moves due to the position change of the plastic sheet and contacts with the side surface of the plastic sheet, a certain pressing force is generated. The buffer spring 313 can absorb and disperse the extrusion force, so as to avoid the extrusion damage of the plastic plate caused by the excessive extrusion force in the moment, the driving mechanism 33 comprises a gear 334 rotatably arranged at the center of the top of the frame 34, the driving mechanism 33 further comprises two racks 332 respectively arranged at the bottom of the moving plate 32, the racks 332 are meshed with the gear 334, the guiding device body 3 further comprises a telescopic driving piece 333 fixed at the top of the frame 34, and the output end of the telescopic driving piece 333 is connected with one of the racks 332. The telescopic driving part 333 is parallel to the rack 332, the driving mechanism 33 includes at least two sliding rails 331 disposed on the top of the frame 34, and two groups of sliding blocks 3311 connected to the bottom of the moving plate 32 are slidably disposed on the sliding rails 331, where the telescopic driving part 333 may be a hydraulic cylinder or an air cylinder or other parts capable of performing telescopic operation.

The telescopic driving member 333 is activated to push the rack gear 332 connected thereto to move. Because of the meshing relationship between the gear 334 and the rack 332, the other rack 332 also moves synchronously, thereby driving the moving plates 32 on both sides to move synchronously. During the movement of the moving plate 32, the slide 3311 slides on the slide rail 331, so that the movement stability of the moving plate 32 is ensured. The moving plate 32 drives the supporting plate 31 to move through the sliding rod 312, so that the position of the guide wheel 311 is adjusted, and the guide wheel 311 always keeps good contact with the side surface of the plastic plate.

The foregoing examples merely illustrate one or more embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (4)

1. A guiding device for a plastic plate extruder comprises a guiding device body (3) arranged on a conveying device (2) of a discharging end of a cooling device (12) on an extruder body (1), a forming die (11) is further arranged between the discharging end of the extruder body (1) and the cooling device (12), and is characterized in that the guiding device body (3) comprises two supporting plates (31) which are respectively arranged on two sides of the conveying device (2) and are arranged along the output direction of the conveying device (2), a plurality of guiding wheels (311) which can be contacted with the side surfaces of the plastic plate are distributed on the supporting plates (31) along the length direction of the supporting plates, the guiding device body (3) further comprises moving plates (32) which are arranged on two sides of the conveying device (2) and can be used for supporting the supporting plates (31), a frame (34) which is arranged right below the moving plates (32), a driving mechanism (32) which can be used for driving the moving plates (32) on two sides is further arranged between the frame (34), one side of the supporting plates (31) which can be arranged on a sliding rod (312) which can be arranged on one side of the sliding rod (312) which can be arranged away from the sliding rod (312), and one end of the buffer spring (313) is in contact with the support plate (31), and the other end of the buffer spring (313) is in contact with the inner side of the moving plate (32).

2. The guide device for a plastic sheet extruder according to claim 1, wherein the driving mechanism (33) comprises a gear (334) rotatably arranged at the center of the top of the frame (34), the driving mechanism (33) further comprises two racks (332) respectively arranged at the bottom of the moving plate (32), the racks (332) are meshed with the gear (334), the guide device body (3) further comprises a telescopic driving piece (333) fixed at the top of the frame (34), the output end of the telescopic driving piece (333) is connected with one of the racks (332), and the telescopic driving piece (333) is parallel to the racks (332).

3. The guide device for the plastic plate extruder according to claim 2, wherein the driving mechanism (33) comprises at least two sliding rails (331) arranged at the top of the frame (34), and two groups of sliding blocks (3311) respectively connected with the bottom of the moving plate (32) are slidably arranged on the sliding rails (331).

4. A guide device for a plastic sheet extruder as claimed in claim 1, wherein the cross section of the moving plate (32) is L-shaped.