PETG (polyethylene terephthalate glycol) composite sheet with self-adhesion function

Abstract

The utility model relates to the technical field of composite sheets, and discloses a PETG (polyethylene terephthalate glycol) composite sheet with a self-adhesion function, which comprises a winding drum, and a central shaft column is rotatably inserted into the side wall of the winding drum. By arranging the winding drum, the composite sheet body is wound on the surface of the central shaft column, the composite sheet body is stored in the winding drum, the pressing plate is pressed on the surface of the wound composite sheet body, meanwhile, the threaded column is inserted into one end of the central shaft column in a threaded mode, the handle is held by hand to tighten the threaded column, and at the moment, the elastic force of the spring can be applied to the pressing plate; according to the composite sheet winding device, the pressing plate can be tightly pressed on the side face of the composite sheet body, due to the tension of the spring, the composite sheet bodies of different widths can be wound in the winding drum, the composite sheet bodies of different models can be wound through the composite sheet winding device, one end of each composite sheet body penetrates out of the interior of the discharging groove when the composite sheet winding device is used, and therefore the composite sheet bodies can be conveniently wound. And when the composite sheet body is wound, the winding of the composite sheet body can be completed by rotating the crank.

Description

Technical Field

[0001] The utility model relates to the technical field of composite sheets, in particular to a PETG composite sheet with a self-adhesive function. Background Art

[0002] In the fields of modern packaging, advertising and architectural decoration, self-adhesive film materials have been widely used due to their easy operation and excellent decorative effect.

[0003] According to a new type of PETG composite edge banding sheet disclosed in application number CN202321053632.5, it includes an edge banding and a cutting mechanism, wherein the cutting mechanism includes a fixed groove, a spring, a connecting block, a blade, a pushing block and a movable groove, and the edge banding is composed of release paper, adhesive, PETG base layer, waterproof layer and wear-resistant layer in sequence. The new type of PETG composite edge banding sheet can well prevent water from seeping into the furniture from the surface of the edge banding through the provision of a waterproof layer and a wear-resistant layer, and at the same time, the wear resistance of the edge banding can be increased through the wear-resistant layer; through the provision of a fixed groove, a spring, a connecting block, a blade, a pushing block and a movable groove, when in use, the edge banding can be pulled at one end of the protective cover, and after the edge banding is pulled out to a suitable length, the pushing block is pressed so that the pushing block drives the blade at one end of the connecting block to protrude from one end of the fixed groove, and then the edge banding is cut, and then the pushing block is released, and under the action of the spring, the blade is driven to be recovered into the fixed groove.

[0004] In the process of implementing this application, the inventor found that there are at least the following problems in this technology:

[0005] (1) It is not possible to roll up composite sheets of different types during use, which limits the scope of application and greatly increases the cost of using the device;

[0006] (2) The device is prone to losing its stickiness in high temperature and high humidity environments, and the adhesive may age after long-term use, resulting in decreased bonding strength and a short service life. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a PETG composite sheet with a self-adhesive function, which has the advantages of being able to roll up composite sheets of different models, having low use costs and a long service life, and solves the problems raised in the background technology.

[0008] The utility model provides the following technical solution: a PETG composite sheet with a self-adhesive function, comprising a reel, a side wall of the reel being rotatably plugged with a central axis column, a surface of the central axis column being rotatably sleeved with a backing plate, a composite sheet body being rolled up on the surface of the central axis column, one end of the central axis column being threadedly plugged with a threaded column, one end of the threaded column being fixedly connected to a fixing plate, a side surface of the fixing plate close to the threaded column being rotatably connected to a sealing plate, a side surface of the sealing plate being fixedly connected to a spring, and one end of the spring being fixedly connected to a pressing plate.

[0009] Preferably, the spring and the pressure plate are both sleeved on the surface of the central axis, and one side surface of the pressure plate abuts against one side surface of the composite sheet body.

[0010] Preferably, a handle is fixedly connected to one side surface of the fixing plate.

[0011] Preferably, a crank is fixedly connected to one side surface of the central axis, and the crank is located on one side of the reel.

[0012] Preferably, a discharge chute is provided on the side of the reel.

[0013] Preferably, the composite sheet body comprises a PET matrix layer, an adhesive layer is arranged on the surface of the PET matrix layer, a tough layer is arranged inside the adhesive layer, and a release paper is arranged on the surface of the adhesive layer.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By providing a reel, the composite sheet body is rolled up on the surface of the central axis column, and the composite sheet body is put into the interior of the reel, the pressure plate is pressed on the surface of the rolled composite sheet body, and the threaded column is threadedly inserted into one end of the central axis column, and the threaded column is tightened by holding the handle. At this time, the elastic force of the spring will be applied to the pressure plate, so that the pressure plate can be tightly pressed against the side of the composite sheet body. Due to the tension of the spring, the interior of the reel can roll up composite sheet bodies of different widths, so that the device can roll up composite sheet bodies of different models. When in use, one end of the composite sheet body is passed out from the inside of the discharge chute, and the composite sheet body can be rolled up by turning the crank when rolling up the composite sheet body. The operation is simple and quick, and solves the problem that the existing composite sheet body is inconvenient and easy to be messy when rolling up.

[0016] 2. The PET matrix layer on the composite sheet body and the adhesive layer arranged on the surface of the PET matrix layer are composed of a specific pressure-sensitive adhesive, which has good initial adhesion and lasting adhesion, and can maintain stable bonding performance under different temperature and humidity conditions, ensuring stable bonding force under different environments. A tough layer is arranged inside the adhesive layer, which greatly improves the strength of the composite sheet body and increases the service life of the composite sheet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the reel of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the pressing plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the layered structure of the composite sheet body of the utility model.

[0021] In the figure: 1. reel; 2. discharge chute; 3. central axis column; 4. crank; 5. pad; 6. pressure plate; 7. threaded column; 8. spring; 9. fixed plate; 10. handle; 11. sealing plate; 12. PET matrix layer; 13. tough layer; 14. adhesive layer; 15. release paper; 16. composite sheet body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-4 A PETG composite sheet with self-adhesive function includes a reel 1, a central shaft column 3 is rotatably inserted into the side wall of the reel 1, a pad 5 is rotatably sleeved on the surface of the central shaft column 3, a composite sheet body 16 is rolled up on the surface of the central shaft column 3, a threaded column 7 is threadedly inserted into one end of the central shaft column 3, a fixed plate 9 is fixedly connected to one end of the threaded column 7, a sealing plate 11 is rotatably connected to the surface of the fixing plate 9 close to the threaded column 7, a spring 8 is fixedly connected to one side surface of the sealing plate 11, and a pressure plate 6 is fixedly connected to one end of the spring 8.

[0024] Among them, the spring 8 and the pressure plate 6 are both sleeved on the surface of the central axis column 3, one side surface of the pressure plate 6 abuts against one side surface of the composite sheet body 16, and one side surface of the fixing plate 9 is fixedly connected with a handle 10. The composite sheet body 16 is rolled up on the surface of the central axis column 3, and the composite sheet body 16 is received into the interior of the reel 1, and the pressure plate 6 is pressed on the surface of the rolled composite sheet body 16. At the same time, the threaded column 7 is threadedly inserted into one end of the central axis column 3, and the handle 10 is held to tighten the threaded column 7. At this time, the elastic force of the spring 8 will be applied to the pressure plate 6, so that the pressure plate 6 can be tightly pressed against the side of the composite sheet body 16. Due to the tension of the spring 8, the interior of the reel 1 can roll up composite sheet bodies 16 of different widths, so that the device can roll up composite sheet bodies 16 of different models.

[0025] Among them, a crank 4 is fixedly connected to one side surface of the central axis column 3, and the crank 4 is located on one side of the reel 1. When the composite sheet body 16 is rolled up, the crank 4 can be rotated to complete the rolling up of the composite sheet body 16.

[0026] A discharge slot 2 is provided on the side of the reel 1 , and one end of the composite sheet body 16 is passed through the discharge slot 2 when in use.

[0027] Among them, the composite sheet body 16 includes a PET matrix layer 12, an adhesive layer 14 is arranged on the surface of the PET matrix layer 12, a tough layer 13 is arranged inside the adhesive layer 14, and a release paper 15 is arranged on the surface of the adhesive layer 14. The adhesive layer 14 arranged on the surface of the PET matrix layer 12 is composed of a specific pressure-sensitive adhesive, which has good initial adhesion and lasting adhesion, and can maintain stable adhesion performance under different temperature and humidity conditions, ensuring that stable adhesion can be provided under different environments. The tough layer 13 is arranged inside the adhesive layer 14, which greatly improves the strength of the composite sheet body 16.

[0028] Working principle: When the device is in use, the composite sheet body 16 is rolled up on the surface of the central axis column 3, and the composite sheet body 16 is put into the interior of the reel 1, and the pressure plate 6 is pressed on the surface of the rolled composite sheet body 16. At the same time, the threaded column 7 is threadedly inserted into one end of the central axis column 3, and the handle 10 is held to tighten the threaded column 7. At this time, the elastic force of the spring 8 will be applied to the pressure plate 6, so that the pressure plate 6 can be tightly pressed against the side of the composite sheet body 16. Due to the tension of the spring 8, the interior of the reel 1 can roll up composite sheet bodies 16 of different widths, so that the device can roll up composite sheet bodies 16 of different models. When in use, one end of the composite sheet body 16 is passed through the inside of the discharge trough 2, and when rolling up the composite sheet body 16, the crank 4 can be turned to complete the rolling up of the composite sheet body 16.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PETG composite sheet with self-adhesive function, Features: The invention comprises a winding drum (1), wherein a central shaft column (3) is rotatably inserted into the side wall of the winding drum (1), a pad (5) is rotatably sleeved on the surface of the central shaft column (3), a composite sheet body (16) is rolled up on the surface of the central shaft column (3), a threaded column (7) is threadedly inserted into one end of the central shaft column (3), one end of the threaded column (7) is fixedly connected to a fixing plate (9), a side surface of the fixing plate (9) close to the threaded column (7) is rotatably connected to a sealing plate (11), a side surface of the sealing plate (11) is fixedly connected to a spring (8), and one end of the spring (8) is fixedly connected to a pressure plate (6).

2. A PETG composite sheet with self-adhesive function according to claim 1, Features: The spring (8) and the pressure plate (6) are both sleeved on the surface of the central shaft column (3), and one side surface of the pressure plate (6) abuts against one side surface of the composite sheet body (16).

3. The PETG composite sheet with self-adhesive function according to claim 1, Features: A handle (10) is fixedly connected to one side surface of the fixing plate (9).

4. The PETG composite sheet with self-adhesive function according to claim 1, Features: A crank (4) is fixedly connected to a surface of one side of the central shaft column (3), and the crank (4) is located on one side of the reel (1).

5. The PETG composite sheet with self-adhesive function according to claim 1, Features: A discharge chute (2) is provided on the side of the reel (1).

6. The PETG composite sheet with self-adhesive function according to claim 1, Features: The composite sheet body (16) comprises a PET matrix layer (12), an adhesive layer (14) is arranged on the surface of the PET matrix layer (12), a tough layer (13) is arranged inside the adhesive layer (14), and a release paper (15) is arranged on the surface of the adhesive layer (14).

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