Mylar film die cutting device

Abstract

The utility model discloses a Mylar film die cutting device, which relates to the technical field of Mylar film processing and comprises a fixed bedplate, supporting legs are fixedly mounted at the bottoms of two ends of the fixed bedplate, a supporting plate is fixedly mounted on the top surface of the middle of the fixed bedplate, and a positioning plate is fixedly connected to the top of the supporting plate. An air cylinder is installed in the middle of the positioning plate, and the bottom end of the air cylinder is fixedly connected with a lifting plate. According to the mylar die cutting device, the front feeding assembly and the rear guiding assembly are matched with each other, so that mylar can be flatly conveyed and laid on the top face of the bottom die, then the air cylinder can drive the lifting plate and the replaceable cutter set mechanism to ascend and descend, and the replaceable cutter set mechanism can conveniently carry out die cutting work on the mylar when descending; and the arrangement of the replaceable cutter set mechanism facilitates convenient replacement when abrasion occurs, the arrangement of the extrusion positioning mechanism can extrude and position the mylar in the die cutting process, and the die cutting stability of the mylar die cutting device is improved.

Description

Technical Field

[0001] This utility model relates to the field of mylar sheet processing technology, specifically a mylar sheet die-cutting device. Background Technology

[0002] Mylar film is a film made by heating dimethyl terephthalate and ethylene glycol with the assistance of a relevant catalyst, followed by transesterification and vacuum polycondensation, and biaxial stretching. During the processing of Mylar film, it is necessary to use a die-cutting device to cut Mylar film into the corresponding shape. However, the existing Mylar film die-cutting device still has certain defects in use.

[0003] For example, the insulating Mylar sheet forming device proposed in application number CN201922204804.4 includes a top plate, a support column, a pressure plate, a roller, a take-up roller, a motor, a take-up roller mounting plate, a roller mounting plate, a material box, a horizontal plate, a first fastening bolt, an electrical control box, support legs, a platform, a discharge roller mounting plate, a die-cutting base, a point-cut die-cutting blade, a second fastening bolt, a slider, a cylinder, a third fastening bolt, a push rod, a hollow groove, a clamping block, and a discharge roller. In actual use, during the die-cutting process of the insulating Mylar sheet by the point-cut die-cutting blade, the Mylar sheet is prone to shaking and displacement. At the same time, when ejecting the die-cut Mylar sheet, a push rod is required to lift and push it to achieve the ejection, which reduces the ease of operation of the ejection and discharge work.

[0004] Therefore, we propose a Mylar film die-cutting device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a Mylar sheet die-cutting device to solve the problems mentioned in the background art, such as the Mylar sheets easily shaking and shifting during the die-cutting process, and the reduced convenience of ejecting and unloading the die-cut Mylar sheets.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a Mylar sheet die-cutting device, comprising a fixed platform, wherein support legs are fixedly installed at the bottom of both ends of the fixed platform.

[0007] A front feeding assembly is installed on the top front surface of the fixed platform, and a rear guiding assembly is installed on the top rear rear surface of the fixed platform.

[0008] A support plate is fixedly installed on the top surface of the middle part of the fixed platform, a positioning plate is fixedly connected to the top of the support plate, a cylinder is installed in the middle of the positioning plate, and a lifting plate is fixedly connected to the bottom of the cylinder.

[0009] The lifting plate is equipped with a replaceable blade assembly mechanism.

[0010] The lifting plate is equipped with a pressing and positioning mechanism at both ends;

[0011] A bottom mold is fixedly installed on the top surface of the middle part of the fixed platform;

[0012] A support base is fixedly installed on the top surface of the fixed platform between the bottom mold and the front feeding assembly, and a telescopic unloading mechanism is installed on the top of the support base.

[0013] Preferably, the replaceable blade assembly mechanism includes symmetrically formed mounting slots at the bottom of the lifting plate, with a mounting strip slidably inserted into the mounting slot, a blade die fixedly connected to the bottom surface of the mounting strip, symmetrically formed threaded grooves at the front end of the lifting plate, with a pin threadedly connected to the inside of the threaded groove, and a positioning groove at the front end of the mounting strip.

[0014] Preferably, the mounting groove and mounting strip are arranged in a "T" shape, and the pin is movably engaged with the positioning groove.

[0015] The design of the above structure and the replaceable blade assembly mechanism facilitate the convenient replacement of the blade when it wears out, which helps to ensure the effect of die-cutting Mylar sheets and improves the ease of blade replacement of the Mylar sheet die-cutting device.

[0016] Preferably, the compression positioning mechanism includes limiting seats symmetrically embedded inside both ends of the lifting plate. A lifting rod slides through the inside of the limiting seat. A top block is fixedly installed at the top of the lifting rod. A pressure plate is fixedly connected to the bottom of the top block. A first spring is sleeved on the outer ring of the lifting rod between the top surface of the pressure plate and the bottom end of the limiting seat. The pressure plate is telescopically connected to the limiting seat through the first spring.

[0017] The above-mentioned structure design facilitates the use of the extrusion positioning mechanism to first extrude and position the Mylar sheet during the descent of the lifting plate, thereby avoiding shaking and displacement during the die-cutting process of the Mylar sheet and improving the die-cutting stability of the Mylar sheet die-cutting device.

[0018] Preferably, the telescopic feeding mechanism includes a limiting rod that slides symmetrically through the top of the support base. A connecting plate is fixedly connected to the top of the limiting rod. A movable rod slides through the middle of the connecting plate. The bottom of the movable rod is fixedly connected to the top surface of the support base. A top ring is fixedly sleeved on the top of the movable rod. A second spring is sleeved on the outer ring of the movable rod between the top ring and the connecting plate. An extrusion block is fixedly connected to the bottom of the movable rod.

[0019] Preferably, the connecting plate forms a telescopic structure with the top ring via a second spring, and the bottom surface of the extrusion block is arranged in an arc shape.

[0020] The above-described structure facilitates the passive ejection and unloading of the die-cut Mylar sheets through the telescopic structure of the telescopic unloading mechanism, eliminating the need for an active extrusion unloading using a drive structure, thus improving the ease of unloading operation of the Mylar sheet die-cutting device.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the Mylar sheet die-cutting device;

[0022] 1. The cooperation between the front feeding component and the rear guiding component can flatly convey and lay the Mylar sheet on the top surface of the bottom mold. Then, the cylinder can drive the lifting plate and the replaceable blade assembly mechanism to rise and fall. This facilitates the replacement blade assembly mechanism to perform convenient die-cutting of the Mylar sheet when it descends. The replaceable blade assembly mechanism is designed to facilitate convenient replacement when wear occurs. The extrusion positioning mechanism can extrude and position the Mylar sheet during die-cutting, which helps to prevent the Mylar sheet from shifting and shaking, thus improving the die-cutting stability of the Mylar sheet die-cutting device.

[0023] 2. The telescopic feeding mechanism enables the Mylar sheet top surface to be lifted and lowered during the conveying process, eliminating the need for a drive device to lift and lower the sheet, thus achieving the feeding operation. Compared with the existing lifting and ejection feeding operation, this effectively saves drive resources and improves the feeding convenience of the Mylar sheet die-cutting device. Attached Figure Description

[0024] Figure 1 This is a side view of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the connection structure between the cylinder, the lifting plate, and the replaceable blade assembly mechanism of this utility model;

[0026] Figure 3 This is an exploded view of the lifting plate and replaceable blade assembly mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure between the lifting plate and the extrusion positioning mechanism of this utility model;

[0028] Figure 5 This is a side view of the telescopic feeding mechanism of this utility model.

[0029] In the diagram: 1. Fixed platform; 2. Support leg; 3. Front feeding assembly; 4. Rear guiding assembly; 5. Support plate; 6. Positioning plate; 7. Cylinder; 8. Lifting plate; 9. Mounting groove; 10. Mounting strip; 11. Die; 12. Threaded groove; 13. Pin; 14. Positioning groove; 15. Limiting seat; 16. Lifting rod; 17. Top block; 18. Pressure plate; 19. First spring; 20. Bottom mold; 21. Support seat; 22. Limiting rod; 23. Connecting plate; 24. Movable rod; 25. Top ring; 26. Second spring; 27. Extrusion block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a Mylar sheet die-cutting device, including a fixed platform 1, support legs 2 fixedly installed at the bottom of both ends of the fixed platform 1, a front feeding assembly 3 installed on the top surface of the front end of the fixed platform 1, a rear guiding assembly 4 installed on the top surface of the rear end of the fixed platform 1, a support plate 5 fixedly installed on the top surface of the middle part of the fixed platform 1, a positioning plate 6 fixedly connected to the top of the support plate 5, a cylinder 7 installed in the middle of the positioning plate 6, a lifting plate 8 fixedly connected to the bottom end of the cylinder 7, and a replaceable blade assembly mechanism installed inside the lifting plate 8. The replaceable blade assembly mechanism includes mounting slots 9 symmetrically opened at the bottom of the lifting plate 8. Mounting strips 10 are slidably inserted into the mounting slots 9. The mounting slots 9 and mounting strips 10 are arranged in a "T" shape. A blade mold 11 is fixedly connected to the bottom surface of the mounting strip 10. Threaded slots 12 are symmetrically opened inside the front end of the lifting plate 8. A pin 13 is threadedly connected inside the threaded slots 12. A positioning slot 14 is opened inside the front end of the mounting strip 10. The pin 13 is movably engaged with the positioning slot 14. A bottom mold 20 is fixedly installed on the top surface of the middle part of the fixed platform 1.

[0032] The above structure is designed so that the front feeding component 3 can work with the rear guiding component 4 to transport and pause the Mylar sheet, and can lay the Mylar sheet flat on the top surface of the bottom mold 20. When it stops at the position where it needs to be die-cut, the control cylinder 7 drives the lifting plate 8 to descend, and drives the die 11 to descend synchronously to realize the die-cutting work of the Mylar sheet. The support plate 5 and the positioning plate 6 can position and install the cylinder 7.

[0033] When the die 11 wears out, the pin 13 is separated from the threaded groove 12, and then the pin 13 is separated from the positioning groove 14 to release the engagement of the mounting strip 10. Then, the mounting strip 10 is separated from the mounting groove 9 by pulling the die 11. At this time, the die 11 can be replaced. During installation, the mounting strip 10 at the top of the die 11 is inserted into the inside of the mounting groove 9. Then, the pin 13 is threaded into the inside of the threaded groove 12. At this time, the bottom end of the pin 13 engages with the positioning groove 14 to facilitate the positioning and installation of the mounting strip 10 and the die 11.

[0034] The lifting plate 8 is equipped with a compression positioning mechanism at both ends. The compression positioning mechanism includes a limiting seat 15 symmetrically embedded in the interior of both ends of the lifting plate 8. A lifting rod 16 slides through the interior of the limiting seat 15. A top block 17 is fixedly installed at the top of the lifting rod 16. A pressure plate 18 is fixedly connected to the bottom of the top block 17. A first spring 19 is sleeved on the outer ring of the lifting rod 16 between the top surface of the pressure plate 18 and the bottom of the limiting seat 15. The pressure plate 18 is telescopically connected to the limiting seat 15 through the first spring 19.

[0035] The above-described structure design allows the pressure plates 18 at both ends to first contact the Mylar sheet on the surface of the bottom mold 20 during the descent of the lifting plate 8. As the lifting plate 8 continues to descend, the pressure plates 18 will drive the lifting rod 16 to slide upward inside the limiting seat 15 until the die 11 protrudes from the bottom surface of the pressure plate 18, thus enabling the die-cutting of the Mylar sheet. When the lifting plate 8 and the die 11 rise, the first spring 19 will push the pressure plate 18 to reset, so as to facilitate the re-molding and positioning work. The top block 17 can limit the reset of the pressure plate 18 and the lifting rod 16.

[0036] A support base 21 is fixedly installed on the top surface of the fixed platform 1 between the bottom mold 20 and the front feeding assembly 3. A telescopic feeding mechanism is installed on the top of the support base 21. The telescopic feeding mechanism includes a limiting rod 22 that slides symmetrically through the top of the support base 21. A connecting plate 23 is fixedly connected to the top of the limiting rod 22. A movable rod 24 slides through the middle of the connecting plate 23. The bottom end of the movable rod 24 is fixedly connected to the top surface of the support base 21. A top ring 25 is fixedly sleeved on the top of the movable rod 24. A second spring 26 is sleeved on the outer ring of the movable rod 24 between the top ring 25 and the connecting plate 23. The connecting plate 23 and the top ring 25 form a telescopic structure through the second spring 26. An extrusion block 27 is fixedly connected to the bottom of the movable rod 24. The bottom surface of the extrusion block 27 is set in an arc shape.

[0037] The above structure is designed so that when the die-cut Mylar sheet is conveyed to the bottom of the extrusion block 27, the undie-cut part of the Mylar sheet drives the top ring 25 to rise, which in turn drives the movable rod 24 to slide and rise on the top of the support base 21, and drives the connecting plate 23 to rise synchronously. When the die-cut part of the Mylar sheet reaches the bottom of the extrusion block 27, the second spring 26 will push the connecting plate 23, the movable rod 24 and the extrusion block 27 to fall, which is conducive to the ejection of the die-cut part of the Mylar sheet.

[0038] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A Mylar sheet die-cutting device, comprising a fixed platform (1), wherein support legs (2) are fixedly installed at the bottom of both ends of the fixed platform (1), characterized in that: The front top surface of the fixed platform (1) is equipped with a front feeding assembly (3), and the rear top surface of the fixed platform (1) is equipped with a rear guiding assembly (4). A support plate (5) is fixedly installed on the top surface of the middle part of the fixed platform (1), a positioning plate (6) is fixedly connected to the top of the support plate (5), a cylinder (7) is installed in the middle of the positioning plate (6), and a lifting plate (8) is fixedly connected to the bottom of the cylinder (7). The lifting plate (8) is equipped with a replaceable blade assembly mechanism. The lifting plate (8) is equipped with a pressing and positioning mechanism at both ends; A bottom mold (20) is fixedly installed on the top surface of the middle part of the fixed platform (1); A support base (21) is fixedly installed on the top surface of the fixed platform (1) between the bottom mold (20) and the front feeding assembly (3), and a telescopic feeding mechanism is installed on the top of the support base (21).

2. The Mylar film die-cutting device according to claim 1, characterized in that: The replaceable blade assembly mechanism includes mounting slots (9) symmetrically opened at the bottom of the lifting plate (8), with mounting strips (10) slidably inserted inside the mounting slots (9), and a blade die (11) fixedly connected to the bottom surface of the mounting strips (10). Threaded grooves (12) are symmetrically opened inside the front end of the lifting plate (8), with pins (13) threaded inside the threaded grooves (12), and a positioning groove (14) is opened inside the front end of the mounting strips (10).

3. The Mylar film die-cutting device according to claim 2, characterized in that: The mounting groove (9) and mounting strip (10) are arranged in a "T" shape, and the pin (13) is engaged with the positioning groove (14).

4. The Mylar film die-cutting device according to claim 1, characterized in that: The extrusion positioning mechanism includes limiting seats (15) symmetrically embedded inside both ends of the lifting plate (8). A lifting rod (16) slides through the inside of the limiting seat (15). A top block (17) is fixedly installed at the top of the lifting rod (16). A pressure plate (18) is fixedly connected to the bottom of the top block (17). A first spring (19) is sleeved on the outer ring of the lifting rod (16) between the top surface of the pressure plate (18) and the bottom of the limiting seat (15). The pressure plate (18) is telescopically connected to the limiting seat (15) through the first spring (19).

5. The Mylar film die-cutting device according to claim 1, characterized in that: The telescopic feeding mechanism includes a limiting rod (22) that slides symmetrically through the top of the support base (21). A connecting plate (23) is fixedly connected to the top of the limiting rod (22). A movable rod (24) slides through the middle of the connecting plate (23). The bottom end of the movable rod (24) is fixedly connected to the top surface of the support base (21). A top ring (25) is fixedly sleeved on the top of the movable rod (24). A second spring (26) is sleeved on the outer ring of the movable rod (24) between the top ring (25) and the connecting plate (23). An extrusion block (27) is fixedly connected to the bottom end of the movable rod (24).

6. The Mylar film die-cutting device according to claim 5, characterized in that: The connecting plate (23) forms a telescopic structure with the top ring (25) via the second spring (26), and the bottom surface of the extrusion block (27) is set in an arc shape.

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