Plastic sheet blister processing equipment

Abstract

The utility model discloses plastic sheet blister processing equipment, belongs to the technical field of plastic sheet processing, and aims to solve the problems that four edges of a plastic sheet and the top end of a mold are difficult to limit due to inconsistent sizes of plastic sheets with different specifications, air leakage is easy to occur, and the production efficiency is high. The plastic vacuum forming machine comprises a plastic vacuum forming machine body, a cover plate arranged in the middle of the top of the plastic vacuum forming machine body and an air leakage prevention mechanism used for limiting the plastic sheet. The air leakage prevention mechanism comprises frame pressing plates arranged at the two ends of the bottom of the cover plate, shell pressing plates arranged on the two sides of the middle position of the two fixing shafts, shell inserting covers inserted into the shell pressing plates, and a plurality of pressing legs fixed to the bottoms of the shell inserting covers. According to the utility model, air leakage between the four edges and the top end of the mold during plastic uptake can be avoided, so that the processing quality of plastic sheets can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic sheet processing, and in particular relates to plastic sheet blister processing equipment. Background Art

[0002] Blister machine, also known as thermoplastic forming machine, is a machine that absorbs heated and plasticized thermoplastic plastic sheets into various shapes of high-end packaging boxes, photo frames and other products. It uses the vacuum suction generated by a vacuum pump to absorb the heated and softened thermoplastic plastic sheets such as PVC and PET into various shapes of vacuum covers, blister trays, bubble shells, etc. through a mold.

[0003] The existing blister forming machine needs to heat the plastic sheet and place it on the top of the mold and then produce the corresponding product by blister forming. However, during the production process, when the plastic sheet is placed on the mold, it is easy to have air leakage due to the inconsistent sizes of plastic sheets of different specifications. The air leakage of the plastic sheet during blister forming can easily lead to blister forming failure, thereby causing certain waste and making the use of the device have certain limitations.

[0004] Therefore, a plastic sheet blister processing equipment is needed to solve the problem in the prior art that due to the inconsistent sizes of plastic sheets of different specifications, it is difficult to define the four edges of the plastic sheet and the top of the mold, which leads to easy air leakage. Air leakage of the plastic sheet during blister forming can easily lead to blister forming failure. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic sheet blister processing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic sheet blister processing device, comprising a blister machine body, a cover plate arranged at the middle position of the top of the blister machine body, and an anti-leakage mechanism for limiting the plastic sheet;

[0007] The anti-air leakage mechanism includes pressure frame plates arranged at both ends of the bottom of the cover plate, pressure shell plates arranged on both sides of the middle position of the two pressure frame plates, a plug-in shell cover inserted inside the pressure shell plates, a plurality of pressure legs fixed to the bottom of the plug-in shell cover, a pressure strip arranged at the middle position of the pressure legs at two adjacent positions, a first adjusting component acting on the two pressure frame plates, a second adjusting component acting on the two groups of pressure shell plates and the plug-in shell cover, and a guide component for limiting the plug-in shell cover, one end of the pressure strip is fixed to the inner wall of the pressure shell plate.

[0008] It should be noted in the scheme that the first adjusting component includes a rod groove opened on the top of the blister machine body and located on both sides of the cover plate, a slide seat slidably set at both ends of the inner cavity of the rod groove, a positioning rod inserted through the middle position of the two slide seats, a pressure frame plate threadedly connected to the middle position of the other two adjacent slide seats, a connecting plate inserted through the middle position of the slide seat, openings opened on the two side surfaces of the bottom of the cover plate, and an embedded shaft fixed inside the opening.

[0009] It is further worth mentioning that the bottom of the connecting plate is fixed to the surface of the top of the adjacent frame plate, and one end of the connecting plate is embedded in the adjacent opening and is slidably connected to the adjacent connecting plate.

[0010] It should be further explained that the second adjusting component includes a fixed shaft fixed at the inner cavity position of the pressure frame plate, sleeves slidably arranged on both sides of the outer circumference of the fixed shaft, fixing holes evenly opened on the top of the outer circumference of the sleeves, and bolts threadedly connected to the top of the sleeves, two of which are fixed to the surfaces of the pressure shell plates at adjacent positions, and the other two are fixed to the surfaces of the plug-in shell covers at adjacent positions, and the bottom of the bolt passes through the sleeve and is embedded in the interior of the fixing holes at adjacent positions.

[0011] As a preferred embodiment, the guide component includes positioning grooves opened on both sides of the inner wall of the pressure shell plate and positioning strips inserted inside the positioning grooves, and the sides of the positioning grooves at two adjacent positions close to each other are fixed to the surfaces on both sides of the plug-in shell cover.

[0012] As a preferred embodiment, it also includes a support mechanism for the vertical movement of the cover plate, the support mechanism includes a U-shaped fixing seat fixed on both sides of the top of the blister machine body, a bottom groove opened on the bottom surface of the fixing seat, a second threaded rod rotatably connected to the inner cavity of the bottom groove, a threaded sleeve threadedly connected to both sides of the outer circumference of the second threaded rod, and a support rod hinged to the bottom of the threaded sleeve.

[0013] As a preferred embodiment, one side of the second threaded rod passes through the fixing seat and extends out of the fixing seat, and the bottom of the support rod is hinged to the surface of the top of the cover plate.

[0014] Compared with the prior art, the plastic sheet blister processing equipment provided by the present invention has at least the following beneficial effects:

[0015] (1) By adjusting the spacing between the two pressing frame plates and the spacing between the two sets of shell pressing plates and the plug-in shell cover, the size of the frame formed by the pressing frame plates, the shell pressing plates and the plug-in shell cover can be adapted to the compression of plastic sheets of different sizes, thereby avoiding the occurrence of air leakage between the four edges and the top of the mold during vacuum forming, which is beneficial to improving the processing quality of the plastic sheets.

[0016] (2) By rotating the second threaded rod, the spacing between the two threaded sleeves can be changed, so that the angle of the support rod can be changed, so that the cover plate can move in the vertical direction so that the frame pressing plate, the shell pressing plate and the plug-in shell cover can press the four edges of the plastic sheet, thereby making it easier for users to operate the device to press and limit the plastic sheets of different thicknesses, thereby improving the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model in the front view direction;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the partial structure of the utility model in the front view direction;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the partial structure of the present invention when viewed from above;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at center A;

[0021] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the medium-pressure shell plate and the plug-in shell cover of the utility model.

[0022] In the figure: 1. Vacuum forming machine body; 2. Cover plate; 3. Rod groove; 4. Slide seat; 5. First threaded rod; 6. Frame pressure plate; 7. Shell pressure plate; 8. Shell cover; 9. Fixed shaft; 10. Bushing; 11. Fixing hole; 12. Bolt; 13. Connecting plate; 14. Opening; 15. Embedded shaft; 16. Fixed seat; 17. Bottom groove; 18. Second threaded rod; 19. Threaded sleeve; 20. Support rod; 21. Pressing leg; 22. Pressing strip; 23. Positioning groove; 24. Positioning strip; 25. Positioning rod. DETAILED DESCRIPTION

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0024] Example 1

[0025] See also Figure 1-5The utility model provides a plastic sheet blister processing device, comprising a blister machine body 1, a cover plate 2 arranged at the top middle position of the blister machine body 1, and an anti-leakage mechanism for limiting the plastic sheet;

[0026] The anti-leakage mechanism includes a pressure frame plate 6 provided at both ends of the bottom of the cover plate 2, a shell pressure plate 7 provided on both sides of the middle position of the two pressure frame plates 6, an inserting shell cover 8 inserted inside the pressure shell plate 7, a plurality of pressure legs 21 fixed to the bottom of the inserting shell cover 8, a pressure strip 22 provided at the middle position of two adjacent pressure legs 21, a first adjustment component acting on the two pressure frame plates 6, a second adjustment component acting on the two groups of pressure shell plates 7 and the inserting shell cover 8, and a guide component for limiting the inserting shell cover 8, one end of the pressure strip 22 is fixed to the inner wall of the pressure shell plate 7;

[0027] The first adjusting component can be used to adjust the distance between the two pressure frame plates 6 to adapt to the pressing and limiting operations of plastic sheets of different widths. The second adjusting component can be used to adjust the distance between the two sets of pressure shell plates 7 and the plug-in shell cover 8 to adapt to the pressing and limiting operations of plastic sheets of different lengths. The guide component can play a limiting role when the plug-in shell cover 8 slides with the inner cavity of the adjacent pressure shell plate 7.

[0028] The first adjusting component includes a rod groove 3 provided on the top of the blister body 1 and located on both sides of the cover plate 2, a slide 4 slidably provided at both ends of the inner cavity of the rod groove 3, a positioning rod 25 inserted through the middle position of the two slides 4, a pressure frame plate 6 threadedly connected to the middle position of the other two adjacent position slides 4, a connecting plate 13 inserted through the middle position of the slide 4, openings 14 provided on both sides of the bottom surface of the cover plate 2 and an embedded shaft 15 fixed inside the opening 14, the bottom of the connecting plate 13 is fixed to the surface of the top of the adjacent position pressure frame plate 6, one end of the connecting plate 13 is embedded in the adjacent position opening 14 and is slidably connected to the adjacent position connecting plate 13;

[0029] When the cam 24 is in the closed position, the cam 24 is in the closed position, and the cam 24 is in the closed position, so that the cam 24 can slide in the closed position and slide in the closed position, thereby making the cam 24 slide in the closed position move downwards and the cam 24 can slide in the closed position.

[0030] See also Figure 1-5 The second adjustment component includes a fixed shaft 9 fixed at the inner cavity position of the pressure frame plate 6, a sleeve 10 slidably sleeved on both sides of the outer circumference of the fixed shaft 9, a fixing hole 11 evenly opened on the top of the outer circumference of the sleeve 10, and a bolt 12 threadedly connected to the top of the sleeve 10, wherein two sleeves 10 are fixed to the surface of the adjacent pressure shell plate 7, and the other two sleeves 10 are fixed to the surface of the adjacent plug-in shell cover 8. The bottom of the bolt 12 passes through the sleeve 10 and is embedded in the interior of the adjacent fixing hole 11;

[0031] By rotating the bolt 12, the bolt 12 is disengaged from the adjacent fixing hole 11 under the action of the threaded structure, thereby pushing the distance between the two sets of pressure shell plates 7 and the plug shell cover 8 to slide along the outer circumference of the fixing hole 11 of the shaft sleeve 10 until the pressure shell plate 7 and the plug shell cover 8 move to the top of both sides of the plastic sheets of different lengths. The bolt 12 is rotated in the opposite direction to make it embedded in the adjacent fixing hole 11, so that the pressure shell plate 7 and the plug shell cover 8 press the two sides of the plastic sheets of different lengths when they move vertically downward with the pressure frame plate 6.

[0032] See also Figure 1-5 The guide member includes positioning grooves 23 provided on both sides of the inner wall of the shell pressure plate 7 and positioning strips 24 inserted into the positioning grooves 23. The sides of the two adjacent positioning grooves 23 close to each other are fixed to the surfaces on both sides of the plug-in cover 8.

[0033] When the plug-in cover 8 slides in the inner cavity of the shell pressure plate 7, the movement trajectory of the plug-in cover 8 can be limited by the interference and limitation between the positioning strip 24 and the inner cavity of the positioning groove 23, so that the plug-in cover 8 slides more smoothly.

[0034] Example 2

[0035] Further in the embodiments, please refer to Figure 1-5 As shown, it also includes a support mechanism for the vertical movement of the cover plate 2, the support mechanism includes a U-shaped fixed seat 16 fixed to both sides of the top of the blister body 1, a bottom groove 17 opened on the bottom surface of the fixed seat 16, a second threaded rod 18 rotatably connected to the inner cavity of the bottom groove 17, a threaded sleeve 19 threadedly connected to both sides of the outer circumference of the second threaded rod 18, and a support rod 20 hinged to the bottom of the threaded sleeve 19. One side of the second threaded rod 18 passes through the fixed seat 16 and extends outside the fixed seat 16. The bottom of the support rod 20 is hinged to the surface of the top of the cover plate 2;

[0036] When the second threaded rod 18 is rotated, since the external thread structures on both sides of the outer circumference of the second threaded rod 18 are set in opposite directions and the inner cavity of the bottom groove 17 can play a role of resistance and limitation on the threaded sleeve 19, the spacing between the threaded sleeves 19 can be changed under the cooperation between the internal thread structure on the inner wall of the threaded sleeve 19 and the external thread structure on the outer circumference of the second threaded rod 18, thereby changing the angle of the support rod 20, so that the cover plate 2 can move vertically downward, so that under the supporting effect of the embedded shaft 15 on the adjacent connecting plate 13 and the connecting effect of the connecting plate 13, the pressure frame plate 6, the pressure shell plate 7 and the plug-in shell cover 8 can move in the vertical direction, so that they can press the edge of the plastic sheet or move away from the plastic sheet.

Claims

1. A plastic sheet blister processing device, comprising a blister machine body (1), and a cover plate (2) arranged at the top middle position of the blister machine body (1), characterized in that: Also included is an anti-leakage mechanism for confining the plastic sheet; The anti-leakage mechanism comprises a pressure frame plate (6) arranged at both ends of the bottom of the cover plate (2), a shell pressure plate (7) arranged at both sides of the middle position of the two pressure frame plates (6), a shell cover (8) inserted into the pressure shell plate (7), a plurality of pressure legs (21) fixed to the bottom of the shell cover (8), a pressure strip (22) arranged at the middle position of two adjacent pressure legs (21), a first adjustment component acting on the two pressure frame plates (6), a second adjustment component acting on the two groups of the pressure shell plates (7) and the shell cover (8), and a guide component for limiting the shell cover (8), and one end of the pressure strip (22) is fixed to the inner wall of the pressure shell plate (7).

2. The plastic sheet blister processing equipment according to claim 1, characterized in that: The first adjusting component comprises a rod groove (3) provided on the top of the blister body (1) and located on both sides of the cover plate (2), a slide seat (4) slidably arranged at both ends of the inner cavity of the rod groove (3), a positioning rod (25) inserted through the middle position of the two slide seats (4), a pressure frame plate (6) threadedly connected to the middle position of the other two adjacent slide seats (4), a connecting plate (13) inserted through the middle position of the slide seat (4), an opening (14) provided on the two side surfaces of the bottom of the cover plate (2), and an embedded shaft (15) fixed inside the opening (14).

3. The plastic sheet blister processing equipment according to claim 2, characterized in that: The bottom of the connecting plate (13) is fixed to the surface of the top of the adjacent frame plate (6), and one end of the connecting plate (13) is embedded in the adjacent opening (14) and is slidably connected to the adjacent connecting plate (13).

4. The plastic sheet blister processing equipment according to claim 3, characterized in that: The second adjustment component includes a fixed shaft (9) fixed at the inner cavity position of the pressure frame plate (6), a sleeve (10) slidably sleeved on both sides of the outer peripheral surface of the fixed shaft (9), a fixing hole (11) evenly opened on the top of the outer peripheral surface of the sleeve (10), and a bolt (12) threadedly connected to the top of the sleeve (10), wherein two of the sleeves (10) are fixed to the surface of the adjacent pressure shell plate (7), and the other two sleeves (10) are fixed to the surface of the adjacent plug-in shell cover (8), and the bottom of the bolt (12) passes through the sleeve (10) and is embedded in the interior of the adjacent fixing hole (11).

5. The plastic sheet blister processing equipment according to claim 4, characterized in that: The guide component comprises positioning grooves (23) provided on both sides of the inner wall of the shell pressure plate (7) and positioning bars (24) inserted into the positioning grooves (23). The sides of the positioning grooves (23) at two adjacent positions close to each other are fixed to the surfaces of both sides of the shell cover (8).

6. The plastic sheet blister processing equipment according to claim 1, characterized in that: The invention also includes a support mechanism for the vertical movement of the cover plate (2), the support mechanism including a U-shaped fixed seat (16) fixed on both sides of the top of the blister machine body (1), a bottom groove (17) opened on the bottom surface of the fixed seat (16), a second threaded rod (18) rotatably connected to the inner cavity of the bottom groove (17), a threaded sleeve (19) threadedly connected to both sides of the outer peripheral surface of the second threaded rod (18), and a support rod (20) hinged to the bottom of the threaded sleeve (19).

7. The plastic sheet blister processing equipment according to claim 6, characterized in that: One side of the second threaded rod (18) passes through the fixing seat (16) and extends outside the fixing seat (16), and the bottom of the support rod (20) is hinged to the surface of the top of the cover plate (2).

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