Plastic film winding and cutting device

By designing the adjustment structure and cleaning structure for plastic film rolling and cutting devices, the stretching or folding problems caused by the mismatch between the film width and the rolling width are solved, and the rolling and film surface cleaning of films of various widths are achieved, and the product quality and production efficiency are improved.

CN222770299UActive Publication Date: 2025-04-18XIONG COUNTY ZHENYUAN PLASTIC CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202421629458.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-04-18
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

During the winding process of plastic film, the film width does not match the winding width, which may lead to the stretching or folding of the film, affecting product quality and production efficiency.

Method used

A plastic film rolling and cutting device is designed, adopting an adjustment structure and a cleaning structure. By adjusting the rolling width, it adapts to films of different widths, and cleans the film surface by cleaning the structure to reduce friction and resistance.

Benefits of technology

The device can adjust the rolling width according to the film width during the winding process, ensure that the film is flat, reduce stretching and folding, improve product quality and production efficiency, while improving the overall quality and appearance of the film through a clean structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222770299U_ABST
    Figure CN222770299U_ABST
Patent Text Reader

Abstract

The utility model discloses a plastic film rolling and cutting device, which relates to the technical field of plastic films and comprises a base, rotating blocks are rotatably connected to the left side and the right side of the rear position of the top of the base, and two fixing frames are fixedly connected to the rear position of the top of the left end of the base. And the two fixing frames are located at the front position and the rear position of the left rotating block correspondingly, a mounting frame is inserted into the two fixing frames, bolts are inserted into the front position and the rear position of the right portion of the mounting frame correspondingly, and the outer walls of the two bolts are inserted into the tops of the two fixing frames correspondingly. According to the plastic film winding and cutting device, through the effect of the adjusting structure, the winding width can be adjusted according to the width of a film when the plastic film is wound, so that the device can adapt to films of various widths, the market requirement is met, meanwhile, it can be ensured that the film is kept flat in the winding process, and the film is prevented from being damaged. And stretching and folding are reduced, so that the product quality is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of plastic films, in particular to a plastic film rolling and cutting device. Background Art

[0002] Plastic film is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is mainly used for packaging and as a coating layer. It is now widely used in food packaging, medicine, chemical industry and other fields. The plastic film winding and cutting device is a device used to collect and cut the plastic film. It can greatly improve production efficiency, reduce manual operation, ensure winding quality, and facilitate subsequent processing and use.

[0003] For example, a Chinese patent with publication number CN219489091 U discloses a plastic film winding and changing device, including a winding and changing device body and a base arranged below the winding and changing device body, and also including an adjusting component arranged above the base, the adjusting component including a motor A, a connecting rod, a support plate, a sliding rod, a bidirectional screw and a screw sleeve, the upper surface of the base is fixedly connected to two symmetrically arranged support plates; the motor A drives the bidirectional screw to rotate, the bidirectional screw drives the screw sleeves to move toward each other and away from each other, the screw sleeves drive the connecting rod to move, and the connecting rod drives the sliding rod to slide. When the distance between the two turntables in the winding and changing device body can accommodate the plastic film, the plastic film with a larger width can be wound and changed.

[0004] The existing technology has the following problems:

[0005] In actual use, different application scenarios may require plastic films of different widths. When the film width does not match the winding width, it may cause the film to stretch or fold during the winding process, affecting product quality and production efficiency. Various problems may arise in subsequent printing, lamination, cutting and other processing processes. Utility Model Content

[0006] The utility model provides a plastic film rolling and cutting device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A plastic film rolling and cutting device comprises a base, wherein the left and right sides of the rearward position of the top of the base are rotatably connected with a rotating block, the rearward position of the top of the left end of the base is fixedly connected with two fixed frames, the two fixed frames are respectively located at the front and rear positions of the left rotating block, the interiors of the two fixed frames are plugged with mounting frames, the front and rear positions of the right part of the mounting frame are plugged with latches, the outer walls of the two latches are respectively plugged with the tops of the two fixed frames, a first motor is fixedly installed in the middle of the right end of the mounting frame, the output end of the first motor is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is slidably connected to the inner wall of the left rotating block, the The right end of the rotating shaft is plugged into the left part of the right rotating block, and a sleeve is movably sleeved in the middle part of the outer wall of the rotating shaft, and the opposite surface in the middle part of the top of the base is rotatably connected to a guide rod, and the left side of the top of the right part of the base is rotatably connected to a threaded rod, and a second motor is fixedly installed in the middle part of the top of the left side of the base, and the output end of the second motor is fixedly connected to the left end of the threaded rod, and a rectangular block is threadedly connected to the outer wall of the threaded rod, and the top of the rectangular block is slidably connected to the outer wall of the guide rod, and a blade is fixedly connected to the bottom end of the rectangular block, an adjustment structure is fixedly installed at the rear position of the top of the base, and a cleaning structure is fixedly installed at the front of the base.

[0009] Preferably, the adjustment structure includes a rectangular frame, the left and right ends of the rectangular frame are respectively fixedly connected to the opposite surfaces of the top of the base, the interior of the rectangular frame is rotatably connected to a bidirectional screw rod, the right end of the bidirectional screw rod extends out of the right end of the base, the right end of the bidirectional screw rod is fixedly connected to a handle, and the left and right positions of the outer wall of the bidirectional screw rod are threadedly connected to rectangular rods.

[0010] Preferably, the interior of the two rectangular rods are fixedly connected to the first round rod, the front and rear positions of the interior of the two rectangular rods are slidably connected to sliding rods, the tops of the sliding rods at the left and right positions are slidably connected to the outer walls of the left and right first round rods respectively, the opposite surfaces of the sliding rods at the front and rear positions are fixedly connected to magnets, the opposite surfaces of the magnets at the front and rear positions are magnetically connected, the bottom ends of the four sliding rods are fixedly connected to snap rings, and the inner walls of the four snap rings overlap the front and rear positions of the left and right outer walls of the sleeve respectively.

[0011] Preferably, the front parts of the two front clamps are fixedly connected to extension plates, the front parts of the opposite surfaces of the two extension plates are fixedly connected to two guide plates, the upper part of the rear parts of the opposite surfaces of the two extension plates are fixedly connected to a second round rod, the outer parts of the tops of the two second round rods are movably sleeved with springs, the tops of the two springs are respectively fixedly connected to the tops of the two extension plates, the bottom ends of the two springs are fixedly connected to sliders, the outer walls of the two sliders are respectively slidably connected to the middle parts of the opposite surfaces of the two extension plates, the outer walls of the two second round rods are respectively slidably connected to the middle parts of the two sliders, and the opposite surfaces of the two sliders and the lower part of the rear parts of the two extension plates are rotatably connected to rubber rollers.

[0012] Preferably, two first elastic telescopic rods are fixedly connected to the rear position of the bottom end of the base, the output ends of the two first elastic telescopic rods are fixedly connected to the top frame, the opposite surface of the top of the top frame is rotatably connected to a round roller, and the top of the outer wall of the round roller overlaps the bottom of the outer wall of the sleeve.

[0013] Preferably, the cleaning structure comprises two rectangular plates, the left and right ends of the lower rectangular plate are respectively fixedly connected to opposite surfaces at the upper front portion of the base, and brushes and sponge blocks are fixedly connected to opposite surfaces of the two rectangular plates.

[0014] Preferably, two opposite sides at the upper front portion of the base are fixedly connected with card frames, the left and right ends of the rectangular plate located above are respectively overlapped with the inner walls of the two rectangular frames, the left and right positions of the front end of the rectangular plate located above are fixedly connected with second elastic telescopic rods, the output ends of the two second elastic telescopic rods are fixedly connected with card blocks, and the outer walls of the two card blocks are respectively plugged into the front portions of the two card frames.

[0015] Preferably, two opposite sides at the lower front portion of the base are provided with card slots, and the inner walls of the two card slots are card-connected with the collection frames.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a plastic film rolling and cutting device. Through the function of the adjustment structure, the rolling width can be adjusted according to the width of the plastic film when the plastic film is rolled up, so that the device can adapt to films of various widths to meet market demand. At the same time, it can ensure that the film remains flat during the rolling process, reduce stretching and folding, and thus improve product quality.

[0018] 2. The utility model provides a plastic film rolling and cutting device. Through the function of the cleaning structure, the plastic film can be cleaned before it is rolled up, and dust and other stains can be effectively removed to keep the film surface clean, thereby reducing friction and resistance during the rolling process, avoiding problems such as creases, stretching or folding, and helping to improve the overall quality and appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the rotating shaft structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the round roller structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the clamping ring structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the rubber roller structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the rectangular plate structure of the utility model

[0025] In the figure: 1, base; 2, rotating block; 3, mounting frame; 4, first motor; 5, rotating shaft; 6, sleeve; 7, adjusting structure; 71, rectangular frame; 72, bidirectional screw rod; 73, handle; 74, slide rod; 75, first round rod; 76, magnet; 77, snap ring; 78, extension plate; 79, guide plate; 710, rubber roller; 711, second round rod; 712, spring; 713, first elastic telescopic rod; 714, top frame; 715, round roller; 716, rectangular rod; 717, slider; 8, cleaning structure; 81, rectangular plate; 82, brush; 83, sponge block; 84, second elastic telescopic rod; 85, card block; 86, card frame; 87, card slot; 88, collection frame; 9, fixed frame; 10, latch; 11, second motor; 12, threaded rod; 13, guide rod; 14, rectangular block; 15, blade. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 and Figure 2As shown, a plastic film winding and cutting device comprises a base 1, and a rotating block 2 is rotatably connected to the left and right sides of the top rear position of the base 1, and two fixed frames 9 are fixedly connected to the rear position of the top of the left end of the base 1, and the two fixed frames 9 are respectively located at the front and rear positions of the left rotating block 2, and the interiors of the two fixed frames 9 are plugged with mounting frames 3, and the front and rear positions of the right part of the mounting frame 3 are plugged with latches 10, and the outer walls of the two latches 10 are respectively plugged with the tops of the two fixed frames 9, and a first motor 4 is fixedly installed in the middle of the right end of the mounting frame 3, and the output end of the first motor 4 is fixedly connected to a rotating shaft 5, and the outer wall of the rotating shaft 5 is slidably connected to the inner wall of the left rotating block 2, and the rotating shaft 5 is The right end is plugged into the left part of the right rotating block 2, the middle part of the outer wall of the rotating shaft 5 is movably sleeved with a sleeve 6, the opposite surface of the middle part of the top of the base 1 is rotatably connected with a guide rod 13, the left side of the top of the right part of the base 1 is rotatably connected with a threaded rod 12, a second motor 11 is fixedly installed in the middle of the top of the left side of the base 1, the output end of the second motor 11 is fixedly connected to the left end of the threaded rod 12, the outer wall of the threaded rod 12 is threadedly connected with a rectangular block 14, the top of the rectangular block 14 is slidably connected to the outer wall of the guide rod 13, the bottom end of the rectangular block 14 is fixedly connected with a blade 15, an adjustment structure 7 is fixedly installed at the rear position of the top of the base 1, and a cleaning structure 8 is fixedly installed at the front of the base 1.

[0028] By providing the adjustment structure 7, the winding width can be adjusted according to the width of the plastic film during the winding process, thereby improving the versatility of the plastic film winding and cutting device.

[0029] like Figure 4 As shown, the adjustment structure 7 includes a rectangular frame 71, the left and right ends of the rectangular frame 71 are respectively fixedly connected to the opposite surfaces of the top of the base 1, the inside of the rectangular frame 71 is rotatably connected to a bidirectional screw rod 72, the right end of the bidirectional screw rod 72 extends out of the right end of the base 1, the right end of the bidirectional screw rod 72 is fixedly connected to a handle 73, and the left and right positions of the outer wall of the bidirectional screw rod 72 are threadedly connected to rectangular rods 716.

[0030] By providing the bidirectional screw rod 72 , the distance between the two rectangular rods 716 can be adjusted, thereby achieving the effect of adjusting the distance between the clamping rings 77 .

[0031] like Figure 4 As shown, the interior of the two rectangular rods 716 are fixedly connected to the first round rod 75, the front and rear positions of the interior of the two rectangular rods 716 are slidably connected to the sliding rod 74, the tops of the left and right sliding rods 74 are slidably connected to the outer walls of the left and right first round rods 75 respectively, the opposite surfaces of the front and rear sliding rods 74 are fixedly connected to the magnets 76, the opposite surfaces of the front and rear magnets 76 are magnetically connected, the bottom ends of the four sliding rods 74 are fixedly connected to the snap rings 77, and the inner walls of the four snap rings 77 overlap the front and rear positions of the left and right outer walls of the sleeve 6 respectively.

[0032] By providing the clamping ring 77, the plastic film can be limited during the winding process, thereby ensuring the stability of the winding and improving the winding quality.

[0033] like Figure 5 As shown, the front parts of the two front retaining rings 77 are fixedly connected to the extension plates 78, the front parts of the opposite surfaces of the two extension plates 78 are fixedly connected to the two guide plates 79, the upper part of the rear parts of the opposite surfaces of the two extension plates 78 is fixedly connected to the second round rod 711, the outer parts of the tops of the two second round rods 711 are movably sleeved with springs 712, the top ends of the two springs 712 are respectively fixedly connected to the tops of the two extension plates 78, the bottom ends of the two springs 712 are fixedly connected to sliders 717, the outer walls of the two sliders 717 are respectively slidably connected to the middle parts of the opposite surfaces of the two extension plates 78, the outer walls of the two second round rods 711 are respectively slidably connected to the middle parts of the two sliders 717, the opposite surfaces of the two sliders 717 and the lower part of the rear parts of the two extension plates 78 are rotatably connected to rubber rollers 710.

[0034] By providing the guide plate 79 and the rubber roller 710, the plastic film can be limited, thereby preventing the plastic film from folding.

[0035] like Figure 3 As shown, two first elastic telescopic rods 713 are fixedly connected to the rear position of the bottom end of the base 1, and the output ends of the two first elastic telescopic rods 713 are fixedly connected to the top frame 714. The opposite surface of the top of the top frame 714 is rotatably connected to a round roller 715, and the top of the outer wall of the round roller 715 overlaps with the bottom of the outer wall of the sleeve 6.

[0036] By providing the round roller 715, the plastic film roll can be squeezed when the plastic film is rolled up, thereby preventing the plastic film roll from becoming loose when rolled up.

[0037] like Figure 5 As shown, the cleaning structure 8 includes two rectangular plates 81. The left and right ends of the lower rectangular plate 81 are fixedly connected to the opposite surfaces of the upper front part of the base 1 respectively. The opposite surfaces of the two rectangular plates 81 are fixedly connected with brushes 82 and sponge blocks 83.

[0038] By providing the brush 82 and the sponge block 83, the plastic film can be cleaned, thereby preventing the plastic film from being stained with dust, which in turn causes increased friction and resistance between the plastic films.

[0039] like Figure 3 and Figure 5As shown, two opposite sides of the upper front portion of the base 1 are fixedly connected with card frames 86, the left and right ends of the upper rectangular plate 81 are respectively overlapped with the inner walls of the two rectangular frames 71, and the left and right positions of the front end of the upper rectangular plate 81 are fixedly connected with second elastic telescopic rods 84, and the output ends of the two second elastic telescopic rods 84 are fixedly connected with card blocks 85, and the outer walls of the two card blocks 85 are respectively plugged into the front of the two card frames 86.

[0040] By providing the clamping frame 86 and the clamping block 85, the upper rectangular plate 81 can be disassembled and assembled, thereby facilitating the maintenance of the brush 82 and the sponge block 83 and facilitating the loading of the plastic film.

[0041] like Figure 1 and Figure 2 As shown, two opposite sides of the front lower portion of the base 1 are provided with slots 87 , and the inner walls of the two slots 87 are connected with a collecting frame 88 .

[0042] By providing the collection frame 88, the dust and other debris cleaned by the brush 82 and the sponge block 83 can be collected, thereby facilitating unified treatment.

[0043] The working principle of the utility model is as follows: when in use, the first motor 4 is started first, which drives the rotating shaft 5 to rotate, and then drives the sleeve 6 to rotate, so as to achieve the effect of winding the plastic film. After the winding is completed, the second motor 11 is started, which drives the threaded rod 12 to rotate. Under the action of the guide rod 13, the rectangular block 14 is driven to slide, and then the blade 15 is driven to cut the plastic film. Thereafter, the latch 10 is removed, and the mounting frame 3 is pulled out, and then the rotating shaft 5 is pulled out. After that, the sleeve 6 after the winding is completed can be taken out. When winding, the handle 73 is rotated, which drives the bidirectional screw rod 72 to rotate, and then drives the two rectangular rods 716 to slide toward each other. The spacing between the clamping rings 77 on the left and right sides is adjusted according to the width of the winding. Thereafter, the sliding rod 74 is slid. Under the action of the magnet 76, the clamping ring 77 is fitted on the surface of the sleeve 6, and then the two sides of the plastic film are passed through the opposite surfaces of the guide plates 79 at the front and rear positions, and under the action of the spring 712 and the second round rod 711, the two rubber rollers 710 can be squeezed against each other, thereby limiting the plastic film. During the winding process, the round roller 715 is pressed against the sleeve 6 and the plastic film under the action of the first elastic telescopic rod 713. When winding, the two ends of the upper rectangular plate 81 are placed on the inside of the two card frames 86. Under the action of the second elastic telescopic rod 84, the card block 85 is inserted into the card frame 86, thereby fixing the upper rectangular plate 81. During the sliding process of the plastic film, the brush 82 and the sponge block 83 clean the plastic film, and the cleaned debris falls into the collection frame 88 for collection, which is convenient for subsequent unified treatment.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic film rolling and cutting device, comprising a base (1), characterized in that: The left and right sides of the top rear position of the base (1) are rotatably connected with a rotating block (2); the top rear position of the left end of the base (1) is fixedly connected with two fixed frames (9); the two fixed frames (9) are respectively located at the front and rear positions of the left rotating block (2); the insides of the two fixed frames (9) are plugged with mounting frames (3); the front and rear positions of the right part of the mounting frame (3) are both plugged with latches (10); the outer walls of the two latches (10) are respectively plugged with the tops of the two fixed frames (9); the middle part of the right end of the mounting frame (3) is fixedly installed with a first motor (4); the output end of the first motor (4) is fixedly connected with a rotating shaft (5); the outer wall of the rotating shaft (5) is slidably connected to the inner wall of the left rotating block (2); the right end of the rotating shaft (5) is slidably connected to the left end of the right rotating block (2); The rotating shaft (5) is plugged into the base (1), the middle part of the outer wall of the rotating shaft (5) is movably sleeved with a sleeve (6), the opposite surface of the middle part of the top of the base (1) is rotatably connected with a guide rod (13), the left side of the top of the right part of the base (1) is rotatably connected with a threaded rod (12), a second motor (11) is fixedly installed in the middle of the top of the left side of the base (1), the output end of the second motor (11) is fixedly connected to the left end of the threaded rod (12), the outer wall of the threaded rod (12) is threadedly connected with a rectangular block (14), the top of the rectangular block (14) is slidably connected to the outer wall of the guide rod (13), the bottom end of the rectangular block (14) is fixedly connected with a blade (15), an adjustment structure (7) is fixedly installed at a rearward position of the top of the base (1), and a cleaning structure (8) is fixedly installed at the front of the base (1).

2. A plastic film rolling and cutting device according to claim 1, characterized in that: The adjustment structure (7) comprises a rectangular frame (71), the left and right ends of the rectangular frame (71) are respectively fixedly connected to the opposite surfaces of the top of the base (1), the interior of the rectangular frame (71) is rotatably connected to a bidirectional screw rod (72), the right end of the bidirectional screw rod (72) extends out of the right end of the base (1), the right end of the bidirectional screw rod (72) is fixedly connected to a handle (73), and the left and right positions of the outer wall of the bidirectional screw rod (72) are both threadedly connected to rectangular rods (716).

3. The plastic film rolling and cutting device according to claim 2, characterized in that: The inside of the two rectangular rods (716) is fixedly connected to the first round rod (75), the front and rear positions inside the two rectangular rods (716) are slidably connected to the sliding rods (74), the tops of the sliding rods (74) at the left and right positions are slidably connected to the outer walls of the left and right first round rods (75), respectively, the opposite surfaces of the sliding rods (74) at the front and rear positions are fixedly connected to the magnets (76), the opposite surfaces of the magnets (76) at the front and rear positions are magnetically connected, the bottom ends of the four sliding rods (74) are fixedly connected to the snap rings (77), and the inner walls of the four snap rings (77) are overlapped with the front and rear positions of the left and right outer walls of the sleeve (6) respectively.

4. The plastic film rolling and cutting device according to claim 3, characterized in that: The front parts of the two front clamping rings (77) are fixedly connected with extension plates (78), the front parts of the opposite surfaces of the two extension plates (78) are fixedly connected with two guide plates (79), the upper part of the rear parts of the opposite surfaces of the two extension plates (78) is fixedly connected with a second round rod (711), the outer parts of the tops of the two second round rods (711) are movably sleeved with springs (712), the top ends of the two springs (712) are respectively fixedly connected with the tops of the two extension plates (78), the bottom ends of the two springs (712) are fixedly connected with sliders (717), the outer walls of the two sliders (717) are respectively slidably connected with the middle parts of the opposite surfaces of the two extension plates (78), the outer walls of the two second round rods (711) are respectively slidably connected with the middle parts of the two sliders (717), and the opposite surfaces of the two sliders (717) and the lower part of the rear parts of the two extension plates (78) are rotatably connected with rubber rollers (710).

5. The plastic film rolling and cutting device according to claim 1, characterized in that: Two first elastic telescopic rods (713) are fixedly connected to the rear position of the bottom end of the base (1); the output ends of the two first elastic telescopic rods (713) are fixedly connected to a top frame (714); the opposite surface of the top of the top frame (714) is rotatably connected to a round roller (715); the top of the outer wall of the round roller (715) overlaps the bottom of the outer wall of the sleeve (6).

6. The plastic film rolling and cutting device according to claim 1, characterized in that: The cleaning structure (8) comprises two rectangular plates (81), the left and right ends of the lower rectangular plate (81) are respectively fixedly connected to opposite surfaces at the upper front portion of the base (1), and the opposite surfaces of the two rectangular plates (81) are fixedly connected with brushes (82) and sponge blocks (83).

7. The plastic film rolling and cutting device according to claim 6, characterized in that: The two opposite sides of the upper front portion of the base (1) are fixedly connected with a card frame (86), the left and right ends of the rectangular plate (81) located at the top are respectively overlapped with the inner walls of the two rectangular frames (71), the left and right positions of the front end of the rectangular plate (81) located at the top are fixedly connected with a second elastic telescopic rod (84), the output ends of the two second elastic telescopic rods (84) are fixedly connected with a card block (85), and the outer walls of the two card blocks (85) are respectively plugged with the front parts of the two card frames (86).

8. The plastic film rolling and cutting device according to claim 1, characterized in that: The base (1) has two opposite sides at the lower front portion thereof provided with card slots (87), and the inner walls of the two card slots (87) are card-connected with a collecting frame (88).

Citation Information

Patent Citations

  • Plastic film winding and changing device

    CN219489091U