Plastic film embossing device and roller thereof

Abstract

The utility model provides a plastic film embossing device and a roller thereof. The plastic film embossing device aims at solving the technical problem that a roller of an existing plastic film embossing device is prone to adhering to a plastic film. According to the technical scheme, the roller comprises a hollow roller main body; connecting mechanisms are respectively arranged at two ends of the barrel main body; the connecting mechanism comprises a first connecting piece and a second connecting piece; the first connecting piece comprises a sealing part for sealing the end part of the barrel main body, a connecting shaft arranged on the outer side of the sealing part and a first ring part; the second connecting piece is rotationally connected with the first ring part and the connecting shaft; a gap is formed between the second connecting piece and the sealing part, so that an oil chamber is formed between the second connecting piece and the sealing part; the sealing part is provided with a through hole penetrating through the inner and outer surfaces of the sealing part to communicate the oil chamber with the cylinder main body; the second connector has an interface. The roller can keep the temperature stable and uniform, and the plastic film can be effectively prevented from being adhered to the roller during embossing. In addition, the utility model further provides a plastic film embossing device with the roller.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production and processing equipment, in particular to a plastic film embossing device and a roller thereof. Background Art

[0002] When plastic pellets are made into plastic films, the plastic films sometimes need to be embossed at the request of customers. The plastic film embossing device mainly includes a pair of rollers; usually, one of the rollers has a pattern on its circumference, and the other roller has a smooth circumference; through the extrusion of the two rollers, the pattern is formed on the surface of the plastic film.

[0003] In the original plastic film embossing device of our company, during the embossing process, the plastic film is easy to stick to the roller, causing the plastic film to deform, thus adversely affecting the quality of the plastic film. After repeated tests, our company's technicians found that the roller temperature is too high, too low or uneven, which is easy to cause the plastic film to stick to the roller. Therefore, it is necessary to study an embossing roller that can maintain a stable and uniform temperature. Summary of the invention

[0004] The purpose of the utility model is to provide a roller which can maintain a stable and uniform temperature and effectively prevent the plastic film from sticking to the roller during embossing. Based on the same inventive concept, another purpose of the utility model is to provide a plastic film embossing device having the above roller.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A roller comprises: a hollow roller body; connecting mechanisms are respectively provided at both ends of the roller body; the connecting mechanism comprises: a first connecting member fixedly connected to the roller body, and a second connecting member rotatably connected to the first connecting member; the first connecting member comprises: a sealing portion that closes the end of the roller body, a connecting shaft arranged on the outside of the sealing portion, and a first ring portion; the second connecting member is located on the outside of the sealing portion; the second connecting member is rotatably connected to the first ring portion through a first bearing, and the second connecting member is rotatably connected to the connecting shaft through a second bearing; there is a gap between the second connecting member and the sealing portion to form an oil chamber between the two; the sealing portion has a through hole running through its inner and outer surfaces to connect the oil chamber with the roller body; the second connecting member has an interface.

[0007] Optionally, spiral blades are provided in the barrel body to convert the space in the barrel body into a flow channel extending along a spiral trajectory.

[0008] Optionally, the spiral blade has a central axis, and one end of the central axis has a prismatic head; the sealing portion of the first connecting piece corresponding to the prismatic head is provided with a limit head on a side facing the prismatic head, and the limit head has a limit groove adapted to the prismatic head.

[0009] Optionally, the connecting shaft has a center hole, and a compression spring and a joint are installed in sequence from the inside to the outside; the center hole and the joint are both prismatic; the connecting shaft has a strip hole extending along its length, and the joint has a limiting piece limited to the strip hole.

[0010] Optionally, a threaded hole is provided on the side of the joint; the limiting member has a threaded section, which passes through the strip hole and is installed in the threaded hole of the joint.

[0011] Optionally, a hollow gear is installed on the outer periphery of the first connecting member, and the hollow gear is key-connected with the first ring portion.

[0012] Optionally, the first connecting member is provided with a second ring portion on the inner side of the sealing portion; the second ring portion is provided with an external thread, and the end of the tube body is provided with an internal thread, and the two form a threaded connection.

[0013] The present application also provides a plastic film embossing device, which has the above-mentioned roller.

[0014] Optionally, the plastic film embossing device further comprises: a constant temperature oil tank; the interfaces at both ends of the roller are respectively connected to the inlet and outlet of the constant temperature oil tank through pipelines, and are adapted to a pump to form a circulating oil circuit.

[0015] The working principle of the utility model is as follows: the two ends of the roller can be rotatably mounted on the bracket through the connecting shaft of the first connecting piece, and driven by the motor, so that the roller body can rotate synchronously with the first connecting piece, so as to cooperate with the roller body of another roller to extrude the plastic film and form a pattern on the surface of the plastic film. The second connecting piece is rotatably connected to the first connecting piece, and when the first connecting piece rotates, the second connecting piece can remain stationary. The roller is usually used in conjunction with a constant temperature oil tank and a pump. The interface of the second connecting piece is connected to the constant temperature oil tank to form a circulating oil circuit; the heat transfer oil can flow into the oil chamber at one end of the roller and flow out from the oil chamber at the other end of the roller through the roller body; thereby heat exchange is performed with the roller body, so that the temperature of the roller body is kept stable and uniform.

[0016] It can be seen that the beneficial effect of the utility model is that the temperature of the drum body can be kept stable and uniform, thereby effectively preventing the plastic film from sticking to the roller during embossing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the roller;

[0019] Figure 2 It is a schematic diagram of the assembly of the barrel body and the connecting mechanism;

[0020] Figure 3 is a structural schematic diagram of a first connecting member;

[0021] Figure 4 A schematic diagram of providing a limiting groove for the first connecting member;

[0022] Figure 5 It is a schematic structural diagram of the second connecting member.

[0023] Figure numerals: 1. cylinder body; 2. connecting mechanism; 3. first connecting member; 4. second connecting member; 5. sealing portion; 6. connecting shaft; 7. first ring portion; 8. first bearing; 9. second bearing; 10. through hole; 11. interface; 12. spiral blade; 13. prismatic head; 14. limiting head; 15. limiting groove; 16. center hole; 17. compression spring; 18. joint; 19. strip hole; 20. limiting member; 21. hollow gear; 22. second ring portion. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0028] The following is combined with Figure 1 ~Attached Figure 5 The embodiments of the present utility model are described in detail.

[0029] The embodiment of the utility model provides a roller. The roller comprises: a hollow roller body 1. A connecting mechanism 2 is respectively provided at both ends of the roller body 1. The connecting mechanism 2 comprises: a first connecting member 3 fixedly connected to the roller body 1, and a second connecting member 4 rotatably connected to the first connecting member 3. It should be understood that, according to the actual needs, the first connecting member 3 can be detachably connected to the roller body 1 by bolt connection, thread connection, etc., or can be connected to the roller body 1 as a whole by welding, etc. The first connecting member 3 comprises: a sealing portion 5 that forms a seal for the end of the roller body 1, a connecting shaft 6 arranged outside the sealing portion 5, and a first ring portion 7. It should be understood that the outside of the sealing portion 5 refers to the side thereof facing away from the roller body 1. The second connecting member 4 is located outside the sealing portion 5; the second connecting member 4 is rotatably connected to the first ring portion 7 through a first bearing 8, and the second connecting member 4 is rotatably connected to the connecting shaft 6 through a second bearing 9. There is a gap between the second connecting member 4 and the sealing portion 5 to form an oil chamber between the two. The sealing portion 5 has a through hole 10 penetrating through the inner and outer surfaces thereof to connect the oil chamber with the barrel body 1. The second connecting member 4 has an interface 11.

[0030] The specific implementation of the roller is described below: The two ends of the roller can be rotatably mounted on the bracket through the connecting shaft 6 of the first connecting member 3, and driven by the motor, so that the roller body 1 can rotate synchronously with the first connecting member 3, so as to cooperate with the roller body 1 of another roller to extrude the plastic film and form a pattern on the surface of the plastic film. The second connecting member 4 is rotatably connected to the first connecting member 3, and when the first connecting member 3 rotates, the second connecting member 4 can remain stationary. The roller is usually used in conjunction with a constant temperature oil tank and a pump. The interface 11 of the second connecting member 4 is connected to the constant temperature oil tank to form a circulating oil circuit; the heat transfer oil can flow into the oil chamber at one end of the roller and flow out from the oil chamber at the other end of the roller through the roller body 1; thereby heat exchange is performed with the roller body 1, so that the temperature of the roller body 1 is kept stable and uniform. The roller can keep the temperature of the roller body 1 stable and uniform, thereby effectively preventing the plastic film from sticking to the roller during embossing.

[0031] Furthermore, a spiral blade 12 is provided in the barrel body 1 to change the space in the barrel body 1 into a flow channel extending along a spiral trajectory. It should be understood that changing the space in the barrel body 1 into a flow channel extending along a spiral trajectory can make the heat transfer oil in the barrel body 1 flow more fully and avoid dead corners; thereby, the heat transfer oil can better exchange heat with the barrel body 1, ensuring that the barrel body 1 maintains a stable and uniform temperature.

[0032] Furthermore, the spiral blade 12 has a central axis, and one end of the central axis has a prism head 13; the sealing portion 5 of the first connecting member 3 corresponding to the prism head 13 is provided with a limit head 14 on a side facing the prism head 13, and the limit head 14 has a limit groove 15 adapted to the prism head 13. It should be understood that the spiral blade 12 will rotate synchronously with the barrel body 1 and the first connecting member 3.

[0033] Furthermore, the connecting shaft 6 has a central hole 16, and a compression spring 17 and a joint 18 are installed in sequence from the inside to the outside; the central hole 16 and the joint 18 are both prism-shaped; the connecting shaft 6 has a strip hole 19 extending along its length, and the joint 18 has a stopper 20 limited to the strip hole 19. It should be understood that when installing the roller, the joint 18 can be completely pressed into the central hole 16 of the connecting shaft 6; when the joint 18 is aligned with the mounting hole of the bracket, the compression spring 17 will automatically push the joint 18 outward, so that the joint 18 extends into the mounting hole of the bracket, thereby conveniently and quickly installing the roller on the bracket.

[0034] Furthermore, a threaded hole is provided on the side of the joint 18; the stopper 20 has a threaded section, which passes through the strip hole 19 and is installed in the threaded hole of the joint 18. It should be understood that the joint 18 and the connecting shaft 6 can be assembled conveniently and quickly by adopting the above structure. The strip hole 19 passes through the center hole 16 to the outer peripheral surface of the connecting shaft 6.

[0035] Furthermore, a hollow gear 21 is installed on the outer periphery of the first connecting member 3 , and the hollow gear 21 is key-connected with the first ring portion 7 .

[0036] Furthermore, the first connecting member 3 is provided with a second ring portion 22 on the inner side of the sealing portion 5; the second ring portion 22 is provided with an external thread, and the end of the cylinder body 1 is provided with an internal thread, and the two form a threaded connection. It should be understood that when the first connecting member 3 and the cylinder body 1 are connected in a detachable manner, a sealing ring is also required to be provided between the two.

[0037] The present application also provides a plastic film embossing device, which has the above-mentioned roller.

[0038] Furthermore, the plastic film embossing device also includes: a constant temperature oil tank; the interfaces 11 at both ends of the roller are connected to the inlet and outlet of the constant temperature oil tank through pipelines, and are adapted to form a circulating oil circuit. It should be understood that a commonly used commercially available constant temperature oil tank can be used.

[0039] Although specific embodiments of the present invention are described above, those skilled in the art should understand that various changes or modifications may be made to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.

Claims

1. Roller, characterized in that: include: A hollow cylinder body (1); Both ends of the cylinder body (1) are respectively provided with connection mechanisms (2); The connecting mechanism (2) comprises: a first connecting member (3) fixedly connected to the barrel body (1), and a second connecting member (4) rotatably connected to the first connecting member (3); The first connecting member (3) comprises: a sealing portion (5) for sealing the end of the cylinder body (1), a connecting shaft (6) arranged outside the sealing portion (5), and a first ring portion (7); The second connecting member (4) is located outside the sealing portion (5); the second connecting member (4) is rotatably connected to the first ring portion (7) via a first bearing (8); the second connecting member (4) is rotatably connected to the connecting shaft (6) via a second bearing (9); There is a gap between the second connecting member (4) and the sealing portion (5) so as to form an oil chamber therebetween; The sealing portion (5) has a through hole (10) penetrating the inner and outer surfaces thereof so as to connect the oil chamber with the barrel body (1); the second connecting member (4) has an interface (11).

2. The roller according to claim 1, characterized in that: The barrel body (1) is provided with spiral blades (12) to transform the space inside the barrel body (1) into a flow channel extending along a spiral trajectory.

3. The roller according to claim 2, characterized in that: The spiral blade (12) has a central axis, and one end of the central axis has a prismatic head (13); The sealing portion (5) of the first connecting member (3) corresponding to the prism head (13) is provided with a limiting head (14) on a side facing the prism head (13), wherein the limiting head (14) has a limiting groove (15) adapted to the prism head (13).

4. The roller according to any one of claims 1 to 3, characterized in that: The connecting shaft (6) has a central hole (16) and is provided with a compression spring (17) and a joint (18) in sequence from the inside to the outside; The central hole (16) and the joint (18) are both prismatic; The connecting shaft (6) has a strip-shaped hole (19) extending along its length direction, and the joint (18) has a limiting member (20) limited to the strip-shaped hole (19).

5. The roller according to claim 4, characterized in that: A threaded hole is provided on the side of the joint (18); The limiting member (20) has a threaded section, which passes through the strip hole (19) and is installed in the threaded hole of the joint (18).

6. The roller according to any one of claims 1 to 3, characterized in that: A hollow gear (21) is mounted on the outer periphery of the first connecting member (3), and the hollow gear (21) is key-connected to the first ring portion (7).

7. The roller according to any one of claims 1 to 3, characterized in that: The first connecting member (3) is provided with a second ring portion (22) on the inner side of the sealing portion (5); The second ring portion (22) is provided with an external thread, and the end of the barrel body (1) is provided with an internal thread, and the two form a threaded connection.

8. Plastic film embossing device, characterized in that: A roller according to any one of claims 1 to 7.

9. The plastic film embossing device according to claim 8, characterized in that: Also includes: thermostatic fuel tank; The interfaces (11) at both ends of the roller are connected to the inlet and outlet of the constant temperature oil tank through pipelines, and are adapted to form a circulating oil circuit.

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