A heat shrink film perforating apparatus

Abstract

The application discloses a kind of hot shrinkage film punching equipment, including conveying table, lifting seat, mounting plate, extrusion roller assembly and driving piece;The conveying table is provided with conveying roller in both sides, and middle part is provided with mould seat;The lifting seat is set in the upper of the conveying table, and middle part is provided with the punching head matched with the mould seat;The mounting plate is installed in the lower of the lifting seat by elastic telescopic link;The extrusion roller assembly is slidably installed in one side of the mounting plate;The driving piece is arranged between the extrusion roller assembly and the lifting seat;When the extrusion roller assembly is contacted with hot shrinkage film, and the lifting seat is continuously pressed in vertical direction, the extrusion roller assembly is pushed to move away from the mounting plate direction.The cooperation of the above-mentioned device makes the hot shrinkage film in the state of tension when punching, so as to ensure that the hot shrinkage film front and rear punching pitch remains consistent, to improve the purpose of punching precision and punching effect.

Description

Technical Field

[0001] This invention relates to the field of heat shrink film processing, and in particular to a heat shrink film perforation device. Background Technology

[0002] Heat shrink film is used in all aspects of life. The airtightness of heat shrink film is necessary in most cases, but sometimes it is also necessary to allow for air permeability, which requires perforation in the heat shrink film.

[0003] In existing technologies, heat shrink film is typically pulled by a traction device, and then a lifting cylinder drives the punching head to move vertically for punching, thus completing the punching of the heat shrink film. However, in actual operation, under the action of the traction device, the heat shrink film may wrinkle due to insufficient traction force or its own tension, causing the punching head to be unable to punch the preset position of the heat shrink film. This results in inconsistent spacing between the punched holes, causing inconvenience to the subsequent cutting process, and in some cases, even causing the product to be scrapped.

[0004] Therefore, a heat shrink film perforation device is needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a heat shrink film punching device that keeps the heat shrink film taut during punching, thereby ensuring that the punching spacing between the front and back of the heat shrink film remains consistent, thus improving punching accuracy and punching effect.

[0006] To solve the above-mentioned technical problems, the present invention provides a heat shrink film perforation device, including a conveyor table, a lifting seat, a mounting plate, an extrusion roller assembly, and a driving component;

[0007] The conveyor table is equipped with conveyor rollers on both sides and a mold base in the middle.

[0008] The lifting seat is located above the conveyor table, and a punching head matching the mold seat is provided in the middle.

[0009] The mounting plate is installed below the lifting seat via a flexible telescopic rod;

[0010] The extrusion roller assembly is slidably mounted on one side of the mounting plate;

[0011] The drive component is disposed between the extrusion roller assembly and the lifting seat;

[0012] When the extrusion roller assembly comes into contact with the heat shrink film and the lifting seat continues to press down in the vertical direction, it pushes the extrusion roller assembly to move away from the mounting plate.

[0013] Furthermore, the extrusion roller assembly includes a sliding frame and a rotating roller;

[0014] The sliding frame is slidably mounted on the outer wall of the mounting plate;

[0015] The rotating roller is rotatably mounted inside the sliding frame.

[0016] Furthermore, one end of the drive component is hinged to the outer wall of the sliding frame, and the other end is hinged to the outer wall of the lifting seat.

[0017] Furthermore, the mounting plate has through holes inside for the punch to enter and exit;

[0018] A first cleaning roller and a second cleaning roller are rotatably mounted on both sides of the inside of the through hole.

[0019] Both the first and second cleaning rollers have multiple scrapers on their outer walls.

[0020] Furthermore, the scraper has an opening in the middle that matches the outer wall of the punching head.

[0021] Furthermore, when the rotating roller is bonded to the heat shrink film, a gap is reserved between the scraper and the heat shrink film.

[0022] Furthermore, one end of the first cleaning roller extends to the outside of the mounting plate and is connected to a drive gear;

[0023] The sliding frame is provided with a rack block that matches the drive gear;

[0024] As the sliding frame moves away from or towards the mounting plate, it pushes the first cleaning roller to rotate.

[0025] Furthermore, a first synchronizing gear is provided at the end of the first cleaning roller away from the drive gear;

[0026] A second synchronizing gear is provided at one end of the second cleaning roller;

[0027] The first synchronous gear and the second synchronous gear mesh through a synchronous gear set, causing the first synchronous gear and the second synchronous gear to rotate in opposite directions.

[0028] Furthermore, both the first cleaning roller and the second cleaning roller are made of hollow material, and their outer walls are provided with feed grooves that match the scraper.

[0029] A matching closed plate is hinged inside the feed trough by a torsion spring;

[0030] When the closing plate is subjected to gravity, it can deflect to open the feed trough.

[0031] Furthermore, one end of the closed plate is configured as an L-shaped structure.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] By setting up an installation plate, an extrusion roller assembly, and a drive unit, and when the extrusion roller assembly contacts the heat shrink film and the lifting seat continues to press down, it can push the extrusion roller assembly to push the heat shrink film along the feeding direction to smooth out the wrinkles on the surface of the heat shrink film and ensure that the heat shrink film is in a taut state. This prevents the product from being scrapped due to inconsistent spacing before and after punching caused by the folding of the heat shrink film.

[0034] Furthermore, by setting up a first cleaning roller, a second cleaning roller, and a scraper, after the punching head completes the punching operation, the first cleaning roller and the second cleaning roller can be driven to rotate, and the scraper can remove the heat shrink film waste that is stuck to the outer wall of the punching head due to punching, so as to ensure that the punching head is always in a clean state and avoid affecting subsequent punching.

[0035] In addition, by setting up a feed trough and a closing plate, the waste material cleaned by the scraper can smoothly enter the first cleaning roller and the second cleaning roller from the feed trough, so as to avoid the waste material sticking to the heat shrink film and causing inconvenience to subsequent processing. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the heat shrink film perforation device of the present invention;

[0037] Figure 2 This is a front view of the heat shrink film perforation device of the present invention;

[0038] Figure 3 This is a cross-sectional view of the heat shrink film perforation device of the present invention;

[0039] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0040] Figure 5 This is a schematic diagram of the structure of the first cleaning roller in the heat shrink film perforation device of the present invention;

[0041] Figure 6 This is a partial rear view of the heat shrink film perforation device of the present invention.

[0042] Reference numerals: 1. Conveyor table; 11. Conveyor roller; 12. Mold base; 2. Lifting seat; 3. Mounting plate; 31. Elastic telescopic rod; 32. Through hole; 4. Extrusion roller assembly; 41. Sliding frame; 411. Rack block; 42. Rotating roller; 5. Drive component; 6. Punching head; 7. First cleaning roller; 71. Drive gear; 72. First synchronous gear; 8. Second cleaning roller; 81. Second synchronous gear; 9. Scraper; 91. Opening; 10. Feed trough; 101. Closing plate. Detailed Implementation

[0043] The heat shrink film perforation device of the present invention will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0044] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0045] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention proposes a heat shrink film perforation device, including a conveyor table 1, a lifting seat 2, a mounting plate 3, an extrusion roller assembly 4, and a driving component 5.

[0046] The conveyor table 1 is provided with conveyor rollers 11 on both sides and a mold seat 12 in the middle for use in conjunction with the subsequent stamping tools.

[0047] The lifting seat 2 is located above the conveyor table 1, and a punching head 6 matching the mold seat 12 is provided in the middle. That is, the punching function of the heat shrink film is completed through the cooperation between the mold seat 12 and the punching head 6.

[0048] The mounting plate 3 is installed below the lifting seat 2 via an elastic telescopic rod 31, providing support for the extrusion roller assembly 4.

[0049] The extrusion roller assembly 4 is slidably mounted on one side of the mounting plate 3, that is, it can slide in the opposite direction to the heat shrink film conveying direction to smooth out the wrinkles of the heat shrink film and improve the perforation accuracy.

[0050] The drive component 5 is disposed between the extrusion roller assembly 4 and the lifting seat 2.

[0051] Specifically, when the extrusion roller assembly 4 comes into contact with the heat shrink film and the lifting seat 2 continues to press down in the vertical direction, it pushes the extrusion roller assembly 4 to move away from the mounting plate 3.

[0052] This device, by setting up a mounting plate 3, a squeezing roller assembly 4, and a driving component 5, can push the squeezing roller assembly 4 along the feeding direction (i.e., along the direction opposite to the conveying direction of the heat shrink film) when the squeezing roller assembly 4 contacts the heat shrink film and the lifting seat 2 continuously presses down, so as to smooth the wrinkles on the surface of the heat shrink film and ensure that the heat shrink film is in a taut state. This prevents the inconsistent spacing before and after punching caused by the folding of the heat shrink film, which would lead to product scrapping. It effectively improves the punching accuracy and punching effect.

[0053] Please continue reading. Figure 1 and Figure 2 In this embodiment, a specific extrusion roller assembly 4 is provided to better cooperate with the mounting plate 3 and slide relative to it, so as to improve the smoothing effect on the heat shrink film.

[0054] The extrusion roller assembly 4 includes a sliding frame 41 and a rotating roller 42; the sliding frame 41 is slidably mounted on the outer wall of the mounting plate 3; the rotating roller 42 is rotatably mounted inside the sliding frame 41.

[0055] One end of the driving component 5 is hinged to the outer wall of the sliding frame 41, and the other end is hinged to the outer wall of the lifting seat 2.

[0056] When the lifting seat 2 presses down and drives the sliding frame 41 to contact the heat shrink film, the lifting seat 2 continues to press down. At this time, the driving component 5 deflects to push the sliding frame 41 to move away from the mounting plate 3. At this time, the rotating roller 42 forms relative friction with the heat shrink film to smooth the heat shrink film, thereby effectively ensuring the flatness of the heat shrink film surface and preventing the inability to accurately punch holes in the heat shrink film due to wrinkles.

[0057] It should be noted that the mounting plate 3 has through holes 32 inside for the punch head 6 to pass through and exit.

[0058] In other embodiments, to facilitate cleaning of the surface of the punch head 6, and to avoid poor punching results due to residual heat-shrinkable film waste from the previous punching, the surface of the punch head 6 is cleaned.

[0059] The first cleaning roller 7 and the second cleaning roller 8 are rotatably installed on both sides of the inside of the through hole 32. The outer walls of the first cleaning roller 7 and the second cleaning roller 8 are provided with multiple scrapers 9. That is, by rotating the first cleaning roller 7 and the second cleaning roller 8, the scrapers 9 remove the waste material remaining on the surface of the punch head 6.

[0060] Please see Figure 2 , Figure 3 as well as Figure 5 To further improve the cleaning effect on the punch head 6, the scraper 9 is provided with an opening 91 in the middle that matches the outer wall of the punch head 6, so that the surface of the punch head 6 can be completely covered by the two scrapers 9 located in the same plane, ensuring that no dead corners are found during cleaning.

[0061] It should be noted that when the rotating roller 42 is bonded to the heat shrink film, a gap is reserved between the scraper 9 and the heat shrink film, which further limits the outer diameter of the scraper 9's rotation, so that the scraper 9 will not interfere with the heat shrink film during rotation, thus ensuring the stability of the overall equipment operation.

[0062] To enable the first cleaning roller 7 and the second cleaning roller 8 to be driven without the need for an additional power source, thereby reducing equipment operating costs.

[0063] One end of the first cleaning roller 7 extends to the outside of the mounting plate 3 and is connected to a drive gear 71; the sliding frame 41 is provided with a rack block 411 that matches the drive gear 71.

[0064] When the sliding frame 41 moves away from or towards the mounting plate 3, it pushes the first cleaning roller 7 to rotate.

[0065] As can be seen from the above, when it is necessary to punch or reset the heat shrink film, the sliding frame 41 will slide accordingly, that is, move away from or towards the mounting plate 3. In this process, the first cleaning roller 7 can be pushed to reciprocate in the positive direction to remove the waste material from the surface of the punching head 6 by the scraper 9.

[0066] like Figure 5 and Figure 6 As shown, it should be noted that a first synchronous gear 72 is provided at the end of the first cleaning roller 7 away from the drive gear 71; a second synchronous gear 81 is provided at the end of the second cleaning roller 8; the first synchronous gear 72 and the second synchronous gear 81 mesh through a synchronous gear set, so that the first synchronous gear 72 and the second synchronous gear 81 rotate in opposite directions.

[0067] That is, by setting the first synchronous gear 72, the second synchronous gear 81 and the synchronous gear set, the first cleaning roller 7 and the second cleaning roller 8 are rotated synchronously to ensure the cleaning effect on the punch head 6.

[0068] Furthermore, due to the arrangement of the synchronous gear set, the first synchronous gear 72 and the second synchronous gear 81 always rotate in opposite directions, that is, the first cleaning roller 7 and the second cleaning roller 8 rotate in opposite directions. Thus, when the first cleaning roller 7 rotates counterclockwise and the second cleaning roller 8 rotates clockwise, the waste material on the punch head 6 will be pushed vertically, thereby facilitating the subsequent collection of waste material.

[0069] In other embodiments, to facilitate the recycling of heat shrink film waste and prevent waste from falling onto the surface of the heat shrink film, thereby increasing subsequent processing costs.

[0070] Both the first cleaning roller 7 and the second cleaning roller 8 are made of hollow material, and their outer walls are provided with feed grooves 10 that match the scraper 9; a matching closing plate 101 is hinged inside the feed groove 10 by a torsion spring.

[0071] It should be noted that when the closing plate 101 is subjected to gravity, it can deflect to open the feed chute 10. That is, the gravity of the closing plate 101 is greater than the elastic force of the torsion spring, so that the closing plate 101 can open the feed chute 10 after moving to a specified height. For details, please refer to [reference needed]. Figure 4 Then, when the scraper 9 moves the waste material, it can fall onto the upper surface of the closing plate 101 under the action of gravity. That is, the waste material can fall into the chamber of the first cleaning roller 7 and the second cleaning roller 8 along the arc trajectory of the surface of the closing plate 101, thus completing the collection of waste material.

[0072] In other embodiments, the shafts of the first cleaning roller 7 and the second cleaning roller 8 are also connected by pipes to a negative pressure vacuum device (not shown in the figure) to accelerate the recycling of waste through gas adsorption power.

[0073] It should be noted that the pipe should be rotatably connected to the first cleaning roller 7 and the second cleaning roller 8 to avoid interference with the rotation of the first cleaning roller 7 and the second cleaning roller 8.

[0074] To prevent waste material falling into the chambers of the first cleaning roller 7 and the second cleaning roller 8 from falling to the outside, one end of the closing plate 101 is configured with an L-shaped structure, so that when the closing plate 101 is located below the axis of the first cleaning roller 7 and the second cleaning roller 8, it is always in contact with the feed trough 10 to ensure that waste material does not fall out.

[0075] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A perforation device for heat shrink film, characterized in that, Includes conveyor table, lifting seat, mounting plate, extrusion roller assembly and drive components; The conveyor table is equipped with conveyor rollers on both sides and a mold base in the middle. The lifting seat is located above the conveyor table, and a punching head matching the mold seat is provided in the middle. The mounting plate is installed below the lifting seat via a flexible telescopic rod; The extrusion roller assembly is slidably mounted on one side of the mounting plate; The drive component is disposed between the extrusion roller assembly and the lifting seat; When the extrusion roller assembly comes into contact with the heat shrink film and the lifting seat continues to press down in the vertical direction, it pushes the extrusion roller assembly to move away from the mounting plate. The extrusion roller assembly includes a sliding frame and a rotating roller; the sliding frame is slidably mounted on the outer wall of the mounting plate; the rotating roller is rotatably mounted inside the sliding frame; The mounting plate has a through hole for the punch head to pass through and exit; a first cleaning roller and a second cleaning roller are rotatably mounted on both sides of the through hole; the outer walls of the first cleaning roller and the second cleaning roller are provided with multiple scrapers. One end of the first cleaning roller extends to the outside of the mounting plate and is connected to a drive gear; the sliding frame is provided with a rack block that matches the drive gear; As the sliding frame moves away from or towards the mounting plate, it pushes the first cleaning roller to rotate.

2. The heat shrink film perforation equipment as described in claim 1, characterized in that, One end of the drive component is hinged to the outer wall of the sliding frame, and the other end is hinged to the outer wall of the lifting seat.

3. The heat shrink film perforation equipment as described in claim 1, characterized in that, The scraper has an opening in the middle that matches the outer wall of the punch head.

4. The heat shrink film perforation equipment as described in claim 1, characterized in that, When the rotating roller is in contact with the heat shrink film, a gap is left between the scraper and the heat shrink film.

5. The heat shrink film perforation equipment as described in claim 1, characterized in that, A first synchronizing gear is provided at the end of the first cleaning roller away from the drive gear; A second synchronizing gear is provided at one end of the second cleaning roller; The first synchronous gear and the second synchronous gear mesh through a synchronous gear set, causing the first synchronous gear and the second synchronous gear to rotate in opposite directions.

6. The heat shrink film perforation equipment as described in claim 1, characterized in that, Both the first cleaning roller and the second cleaning roller are made of hollow material, and their outer walls are provided with feed grooves that match the scraper. A matching closed plate is hinged inside the feed trough by a torsion spring; When the closing plate is subjected to gravity, it can deflect to open the feed trough.

7. The heat shrink film perforation equipment as described in claim 6, characterized in that, One end of the closed plate is configured as an L-shaped structure.

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