Cutting device for polyester film production

Abstract

The utility model relates to a cutting device for polyester film production, which comprises a support and a wind-up roll which is driven to rotate and connected to the support, a cutting mechanism with a cutting blade is arranged on the support, positioning pieces are oppositely arranged on the support, and each positioning piece comprises a moving block, a positioning wheel, a first ball, a second ball and a connecting block. Positioning grooves are formed in the positioning wheels, the first balls are rotationally connected into the positioning grooves, the connecting blocks are relatively elastically and slidably connected into the positioning grooves in the vertical direction, burrs of the polyester film can be cut, the polyester film is positioned through the two oppositely-arranged positioning wheels, and then the polyester film is pressed through the second balls; according to the technical scheme, the polyester film can be positioned in the conveying process, the situation that the polyester film is folded in the conveying and positioning process can be reduced, and therefore the situation that the polyester film deviates in the conveying process can be reduced, and the cutting accuracy of the rough edges of the polyester film is further improved.

Description

[Technical field]

[0001] The utility model relates to the technical field of polyester film cutting equipment, in particular to a cutting device used for polyester film production. [Background technology]

[0002] Polyester film, also known as PET film, is a packaging film with relatively comprehensive performance. It has good transparency and gloss; it has good air tightness and fragrance retention, and medium moisture resistance; its moisture permeability decreases at low temperatures. PET film has excellent mechanical properties, and its toughness is the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films, and it has good strength and stable dimensions. It is suitable for secondary processing such as printing and paper bags. During the production process, polyester film will be affected by external forces such as thermal expansion and contraction and friction, which will produce burrs. Once the polyester film is When polyester film produces burrs, people have designed a cutting device to remove the burrs. The cutting device is used to cut both sides of the polyester film, thereby removing the burrs. The existing cutting device is mainly composed of a bracket, a winding roller, a lifting rod and a cutting blade. The winding roller is driven by a motor to rotate and is connected to the bracket, thereby achieving the winding of the polyester film. Once the polyester film is rolled up, the lifting rod is lifted and lowered, and the lifting of the lifting rod drives the cutting blade fixedly connected to the lifting rod to come into contact with the polyester film, thereby achieving the cutting of the surface of the polyester film.

[0003] Although the above scheme can achieve the cutting of the rough edges of the polyester film, the following problems still exist. First, when the winding roller is winding the polyester film, the polyester film will deviate left and right. The deviation of one end of the polyester film will cause the size of the subsequent cutting blade to change when cutting the polyester film, thereby reducing the dimensional accuracy of the polyester film cutting. [Contents of the utility model]

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a cutting device for polyester film production, which can cut the burrs of the polyester film.

[0005] To achieve the above-mentioned purpose, the utility model proposes a cutting device for polyester film production, comprising: a bracket and a winding roller driven to rotate and connected to the bracket, wherein a cutting mechanism with a cutting blade is arranged on the bracket.

[0006] The bracket is provided with positioning members arranged opposite to each other, and the positioning members are provided in a plurality of groups and arranged in a line;

[0007] The positioning member comprises: a moving block, a positioning wheel, a first ball, a second ball and a connecting block;

[0008] The moving block is driven to slide and connect to the bracket, and the positioning wheel is laterally rotatably connected to the moving block, and the positioning wheels on two adjacent groups of positioning members are arranged opposite to each other;

[0009] The positioning wheel is provided with a positioning groove, and the ball is rotatably connected in the positioning groove;

[0010] The connecting block is elastically slidably connected in the positioning groove in a vertical direction, and the second ball is rotatably connected to a side of the connecting block away from the positioning groove, and the second balls on the two connecting blocks are arranged opposite to each other.

[0011] Preferably, the moving block is elastically slidably connected to sliding blocks that are arranged opposite to each other, and the sliding blocks are rotatably connected to pressure wheels that are arranged opposite to each other.

[0012] Preferably, one end of the connecting block away from the clamping wheel is fixedly connected to a spring 1, and one end of the spring 1 is fixedly connected to the moving block.

[0013] Preferably, each of the pressure wheels is rotatably connected with a ball three, and the ball three on the two pressure wheels are arranged opposite to each other.

[0014] Preferably, a limiting block 1 is fixedly connected to the connecting block, and a limiting groove for the limiting block 1 to slide is provided on the moving block.

[0015] Preferably, the bracket is connected with grinding rollers in an alternating manner and driven to rotate.

[0016] Preferably, a motor 1 is fixedly connected to the bracket, and an output shaft of the motor 1 is fixedly connected to the grinding roller.

[0017] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model forms a channel for transmitting the polyester film between the positioning wheels on the two moving blocks, so that the positioning wheels position the side walls on both sides of the polyester film, and then the two connecting blocks that are relatively arranged are elastically slidably connected in the positioning groove, and the relative movement of the connecting blocks is utilized to make the second ball stick to the polyester film, thereby flattening the polyester film, and then realizing the transmission of the polyester film, and the polyester film is positioned by two relatively arranged positioning wheels, and then the second ball is used to press the polyester film, which can position the polyester film during the transmission process, and can also reduce the edge folding of the polyester film during the transmission positioning process, thereby reducing the deviation of the polyester film during the transmission process, and further improving the accuracy of the cutting of the burr edges of the polyester film.

[0018] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

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

[0020] Figure 2 It is a schematic diagram of the position of the sliding block of the utility model;

[0021] Figure 3 It is a schematic diagram of the position of a spring 1 of the utility model.

[0022] In the figure: 1. bracket; 2. winding roller; 3. cutting blade; 4. cutting mechanism; 5. positioning piece; 6. moving block; 7. positioning wheel; 8. ball one; 9. ball two; 10. connecting block; 11. positioning groove; 12. sliding block; 13. clamping wheel; 14. spring one; 15. ball three; 16. limit block one; 17. limit groove; 18. grinding roller; 19. motor one; 20. motor two; 21. rotating block; 22. cylinder one; 23. cylinder two; 24. motor three; 25. screw one; 26. motor four; 27. spring three. [Specific implementation method]

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] like Figures 1 to 3 A cutting device for polyester film production, comprising: a support 1 and a winding roller 2 driven to rotate and connected to the support 1, wherein the support 1 is provided with a cutting mechanism 4 with a cutting blade 3, wherein the winding roller 2 is driven by a motor 20, and the motor 20 is fixedly connected to the support 1, and when the motor 20 is started, its output shaft can drive the winding roller 2 fixedly connected to it to rotate, and during the rotation of the winding roller 2, the winding roller 2 will rewind the polyester film, and at this time the cutting mechanism 4 is started, and the cutting mechanism 4 is mainly composed of a rotating block 21, a cylinder 1 22, a cylinder 23, a motor 3 24 and a cutting blade 3, and the cylinder 1 22 is fixedly connected to the support 1 The output shaft of the cylinder 1 22 is fixedly connected to the cylinder 2 23, and the cylinder 23 is fixedly connected to the rotating block 21, which can realize the lifting and lateral movement of the rotating block 21, thereby adjusting the position of the cutting blade 3 driven to rotate and connected to the rotating block 21. After the position adjustment of the cutting blade 3 is completed, the output shaft of the motor 3 24 fixedly connected to the rotating block 21 is fixedly connected to the cutting blade 3, so that the cutting blade 3 can rotate, thereby achieving the cutting of the polyester film by the cutting blade 3 during the winding process of the polyester film. It is worth mentioning that the cutting mechanism 4 in the utility model is provided with two groups, and is arranged relatively, so that the two sides of the polyester film can be cut;

[0028] The utility model can reduce the deviation of the polyester film by arranging a plurality of positioning members 5 arranged in a line on the bracket 1 to position the polyester film, and the positioning member 5 includes: a moving block 6, a positioning wheel 7, a ball 1 8, a ball 2 9 and a connecting block 10.

[0029] The moving block 6 is driven and slidably connected to the bracket 1. The moving block 6 is driven by a motor 26 and a screw 25. The screw 25 is rotatably connected to the bracket 1 through a bearing, and the motor 26 is fixedly connected to the bracket 1. The output shaft of the motor 26 is fixedly connected to the screw 25, so that the rotation of the screw 25 can be realized. During the rotation, the screw 25 can drive the moving block 6 threadedly connected thereto to move, so that the position of the moving block 6 can be adjusted. By adjusting the position of the moving block 6, the position of the positioning wheel 7 rotatably connected to the moving block 6 can be adjusted, so that the positioning wheel 7 can position the left and right positions of the polyester film. While the positioning wheel 7 is positioned, the utility model opens a positioning groove 11 on the positioning wheel 7, and utilizes a ball 8 rotatably connected in the positioning groove 11 to contact the polyester film, which can greatly reduce the friction of the polyester film during transmission. The ball 2 9 rotatably connected to the connecting block 10 is driven by the connecting block 10 to contact the polyester film, so that the bending of the polyester film during transmission can be reduced.

[0030] The utility model elastically slides and connects the sliding block 12 on the moving block 6. The sliding block 12 is connected via a spring three 27. The spring three 27 is fixedly connected to the sliding block 12, and one end of the spring three 27 is fixedly connected to the moving block 6, so that the elastic sliding of the sliding block 12 can be realized, and the pressing wheel 13 is rotatably connected to the sliding block 12. The pressing wheel 13 is attached to the polyester film, which can reduce the bending or folding of the polyester film during the transmission process.

[0031] A spring 14 is fixedly connected to one end of the connecting block 10 away from the ball 2, and one end of the spring 14 is fixedly connected to the moving block 6, so that the connecting block 10 and the moving block 6 can be elastically connected.

[0032] The ball bearings 15 are rotatably connected to the pressure wheels 13, and the ball bearings 15 on the two pressure wheels 13 are arranged opposite to each other, thereby reducing the friction of the polyester film during the transmission process.

[0033] A limiting block 16 is fixedly connected to the connecting block 10 , and a limiting groove 17 for the limiting block 16 to slide is provided on the moving block 6 , so that the connecting block 10 can be limited.

[0034] The support 1 is cross-driven and rotatably connected to the grinding roller 18, and the cutting edge of the polyester film is polished by the rotation of the grinding roller 18.

[0035] A motor 19 is fixedly connected to the bracket 1 , and the output shaft of the motor 19 is fixedly connected to the grinding roller 18 , so that the grinding roller 18 can be rotated.

[0036] Principle of the utility model:

[0037] Start the motor 20, and use the output shaft of the motor 20 to drive the winding roller 2 to rotate, so that the winding roller 2 can wind up the polyester film during the rotation;

[0038] Once the polyester film is rolled up, the cutting mechanism 4 is used to drive the cutting blade 3 to contact the polyester film, so that the blade surface of the cutting blade 3 cuts the polyester film, thereby achieving the deburring of the polyester film.

[0039] Before deburring the polyester film, the position of the moving block 6 is adjusted in advance to adjust the position between the positioning wheels 7. The distance between the positioning wheels 7 is used to position the polyester film, thereby reducing the deviation of the polyester film during transmission. In addition, the ball bearings 9 on the moving block 6 are attached to the upper and lower surfaces of the polyester film, thereby reducing the bending of the polyester film during transmission.

[0040] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A cutting device for polyester film production, comprising: A support (1) and a winding roller (2) driven to rotate and connected to the support (1), wherein a cutting mechanism (4) with a cutting blade (3) is arranged on the support (1), characterized in that: The bracket (1) is provided with positioning members (5) arranged opposite to each other, and the positioning members (5) are provided in a plurality of groups and are arranged in a line; The positioning member (5) comprises: a moving block (6), a positioning wheel (7), a first ball (8), a second ball (9) and a connecting block (10); The moving block (6) is driven to slide and connect to the bracket (1), and the positioning wheel (7) is laterally rotationally connected to the moving block (6), and the positioning wheels (7) on two adjacent groups of positioning members (5) are arranged opposite to each other; The positioning wheel (7) is provided with a positioning groove (11), and the ball bearing (8) is rotatably connected in the positioning groove (11); The connecting block (10) is elastically slidably connected in the positioning groove (11) in a vertical direction, and the second ball (9) is rotatably connected to a side of the connecting block (10) away from the positioning groove (11), and the second ball (9) on the two connecting blocks (10) are arranged opposite to each other.

2. A cutting device for polyester film production according to claim 1, characterized in that: The moving block (6) is elastically slidably connected to a sliding block (12) which is arranged opposite to each other, and the sliding block (12) is rotatably connected to a clamping wheel (13), and the clamping wheels (13) are arranged opposite to each other.

3. A cutting device for polyester film production according to claim 2, characterized in that: One end of the connecting block (10) away from the clamping wheel (13) is fixedly connected to a spring 1 (14), and one end of the spring 1 (14) is fixedly connected to the moving block (6).

4. A cutting device for polyester film production according to claim 3, characterized in that: The clamping wheels (13) are rotatably connected with ball three (15), and the ball three (15) on the two clamping wheels (13) are arranged opposite to each other.

5. A cutting device for polyester film production according to claim 2, characterized in that: The connection block (10) is fixedly connected to a limiting block (16), and the moving block (6) is provided with a limiting groove (17) for the limiting block (16) to slide.

6. A cutting device for polyester film production according to claim 1, characterized in that: The support (1) is connected to a grinding roller (18) in an alternating manner and driven to rotate.

7. A cutting device for polyester film production according to claim 6, characterized in that: The bracket (1) is fixedly connected to a motor 1 (19), and the output shaft of the motor 1 (19) is fixedly connected to the sanding roller (18).

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