Polyester film slitting device convenient to maintain

Abstract

The utility model relates to a polyester film slitting device convenient to maintain, which comprises two mounting racks arranged front and back, a driving roller and a cutting roller are symmetrically arranged left and right between the two mounting racks, a motor for driving the driving roller is mounted on the mounting rack on one side, and a motor for driving the cutting roller is mounted on the mounting rack on the other side. A synchronous transmission assembly is mounted on the transmission roller and the cutting roller; a cutting groove is formed in the curved side face of the transmission roller, a mounting groove is formed in the curved side face of the cutting roller, a cutting blade is detachably connected into the mounting groove, and a fixing assembly used for fixing the cutting blade is arranged in the mounting groove. The limiting blocks are not inserted into the limiting grooves any more, the cutting blades can be integrally taken out of the mounting grooves, operation is easy and fast, technicians do not need to replace the whole cutting roller, the working intensity of the technicians is effectively reduced, and the operation efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polyester film, in particular to a polyester film slitting device convenient to maintain. BACKGROUND

[0002] The polyester film is a film material made of polyethylene terephthalate as the main raw material, which is processed through precise extrusion molding and stretching process, and can be coated with paint (such as UV paint) for improving the polyester film, so as to have excellent physical properties, chemical stability and environmental protection characteristics, and become one of the most widely used film materials in modern industry.

[0003] The polyester film needs to be slitted after production for subsequent processing. The cutting blade will be dull after long-term use, which reduces the cutting speed of the blade and causes the cutting edge of the polyester film to be uneven, affecting the subsequent processing.

[0004] The existing slitting blade is usually fixed on the cutting roller and cannot be detached. If the slitting blade is dull, the entire cutting roller needs to be removed and replaced, which is labor-intensive for the technician and is inconvenient for replacement and maintenance.

[0005] In view of the above problems, we propose a polyester film slitting device convenient to maintain. UTILITY MODEL CONTENTS

[0006] The utility model provides a polyester film slitting device convenient to maintain, which solves the above problems in the prior art.

[0007] The technical scheme of the utility model is as follows: a polyester film slitting device convenient to maintain, comprising two mounting racks arranged front and back, a transmission roller and a cutting roller symmetrically arranged between the two mounting racks, a motor for driving the transmission roller mounted on one side of the mounting rack, and a synchronous transmission assembly mounted on the transmission roller and the cutting roller.

[0008] A cutting groove is formed in the curved side surface of the transmission roller, an installation groove is formed in the curved side surface of the cutting roller, a cutting blade is detachably connected in the installation groove, and a fixing assembly for fixing the cutting blade is arranged in the installation groove.

[0009] The utility model further provides that the cutting blade comprises a base and a blade edge, the blade edge is fixedly connected to the upper side of the base, the base is arranged in the installation groove, and the fixing assembly acts on the base.

[0010] The utility model further provides that the fixing assembly comprises two clamping blocks.

[0011] The front and rear walls of the mounting groove are provided with sliding grooves, and the two clamping blocks are respectively slidably connected to the sliding grooves on the same side.

[0012] The front and rear sides of the base are symmetrically provided with limiting grooves, and the clamping blocks are fixedly provided with limiting blocks, which are inserted into the limiting grooves.

[0013] The bottom walls of the two sliding grooves are threadedly connected with screws, and the ends of the screws are rotatably connected to the clamping blocks.

[0014] The further setting of the utility model is that one end of the screw threadedly connected with the sliding groove extends to the outside of the sliding groove and is fixedly connected with an external hexagonal screw head.

[0015] The further setting of the utility model is that the synchronous transmission assembly comprises two first gears and two second gears.

[0016] The two first gears are symmetrically keyed on the rotating shafts of the transmission rollers, the two second gears are symmetrically keyed on the rotating shafts of the cutting rollers, and the first gears and the second gears on the same side are meshed with each other.

[0017] The further setting of the utility model is that the distance between the second gear and the side wall on the same side of the cutting roller is greater than the length of the screw.

[0018] The further setting of the utility model is that the limiting rings are symmetrically fixed on the curved side walls of the transmission rollers, and the two limiting rings are respectively abutted against the front and rear sides of the upper edge of the cutting groove.

[0019] The utility model has the advantages that:

[0020] When the technician installs the cutting blade, the limiting block is inserted into the limiting groove by rotating the screw, so that the base is fixed, the base will not fall out of the mounting groove during the rotation of the cutting roller, and the cutting edge can cut the polyester film.

[0021] When the technician needs to replace the cutting blade, the technician only needs to rotate the screw, the limiting block is no longer inserted into the limiting groove, and the cutting blade can be taken out from the mounting groove as a whole, which is simple and fast, the technician does not need to replace the whole cutting roller, the working intensity of the technician is effectively reduced, and the operation efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Fig. 2 This is a schematic diagram of the connection structure between the cutting blade and the mounting groove in this utility model;

[0025] Fig. 3 This is a schematic diagram of the cutting blade in this utility model.

[0026] The following are the labeling elements in the diagram: 11. Mounting bracket; 12. Drive roller; 13. Cutting roller; 14. Motor; 15. Cutting groove; 16. Mounting groove; 17. Cutting blade; 18. Base; 19. Blade; 20. Clamping block; 21. Sliding groove; 22. Screw; 23. External hexagonal screw head; 24. Gear No. 1; 25. Gear No. 2; 26. Limiting ring; 27. Limiting groove; 28. Limiting block. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figs. 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example:

[0029] like Figs. 1 to 3 As shown, a polyester film slitting device that is easy to maintain includes two mounting frames 11 arranged front to back. A drive roller 12 and a cutting roller 13 are symmetrically arranged between the two mounting frames 11. A motor 14 for driving the drive roller 12 is mounted on one of the mounting frames 11. Two first gears 24 are symmetrically connected to the rotation shaft of the drive roller 12, and two second gears 25 are symmetrically connected to the rotation shaft of the cutting roller 13. The first gears 24 and second gears 25 on the same side mesh with each other. When the motor 14 drives the drive roller 12 to rotate, the first gears 24 drive the second gears 25 to rotate as well, thereby driving the cutting roller 13 and the drive roller 12 to rotate in opposite directions at the same speed.

[0030] Furthermore, a cutting groove 15 is provided in the curved side surface of the transmission roller 12, and an installation groove 16 is provided in the curved side surface of the cutting roller 13. A cutting blade 17 is detachably connected in the installation groove 16. During the slitting process, the transmission roller 12 conveys the polyester film into the space between the transmission roller 12 and the cutting roller 13. When the transmission roller 12 and the cutting roller 13 rotate towards each other until the cutting blade 17 is inserted into the cutting groove 15, the cutting blade 17 slits the polyester film. In addition, symmetrical limiting rings 26 are fixed on the curved side wall of the transmission roller 12. The two limiting rings 26 abut against the front and rear sides of the upper edge of the cutting groove 15, respectively, thereby limiting the position of the polyester film and preventing the position of the polyester film from shifting during the conveying process, which would cause the cut to be skewed.

[0031] The cutting blade 17 includes a base 18 and a blade 19. The blade 19 is fixedly connected to the upper side of the base 18. The base 18 is located in the mounting groove 16. The specific connection between the cutting blade 17 and the mounting groove 16 is as follows: sliding grooves 21 are provided in the front and rear side walls of the mounting groove 16. Clamping blocks 20 are slidably connected in the sliding grooves 21. Limiting blocks 28 are fixedly provided on the clamping blocks 20. Limiting grooves 27 corresponding to the limiting blocks 28 are symmetrically provided on the front and rear sides of the base 18. Screws 22 are threadedly connected to the bottom walls of the two sliding grooves 21. In order to facilitate the rotation of the screws 22 by technicians, one end of the screw 22 that is threaded to the sliding groove 21 extends to the outside of the sliding groove 21 and is fixedly connected to an external hexagonal screw head 23. The end of the screw 22 is rotatably connected to the clamping block 20.

[0032] When installing the cutting blade 17, the technician first inserts the base 18 into the mounting groove 16, and then rotates the screws 22 on the front and rear sides, so that the screws 22 drive the clamping block 20 closer to the base 18 until the limiting block 28 is inserted into the limiting groove 27, thereby fixing the base 18 in the mounting groove 16 to achieve the purpose of installing the cutting blade 17, and the blade 19 performs the cutting operation on the polyester film;

[0033] When the blade 19 becomes dull due to aging from long-term use, technicians can first rotate the cutting blade 17 to the upper edge of the curved surface of the cutting roller 13, and then rotate the screws 22 on both sides to prevent the limiting block 28 from being inserted into the limiting groove 27. This allows the cutting blade 17 to be removed and replaced. The disassembly and assembly of the cutting blade 17 is simple, and technicians do not need to disassemble and replace the entire cutting roller 13, effectively reducing the maintenance workload of the technicians for the cutting roller 13.

[0034] Furthermore, it should be noted that the distance between the second gear 25 and the sidewall of the cutting roller 13 on the same side is greater than the sum of the lengths of the screw 22 and the external hexagonal screw head 23, so that technicians can reach out or use tools to rotate the external hexagonal screw head 23, and avoid interference between the external hexagonal screw head 23 and the second gear 25 during the process of technicians rotating the screw 22.

[0035] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyester film slitting device that is easy to maintain, comprising two mounting brackets (11) arranged front and rear, characterized in that: A drive roller (12) and a cutting roller (13) are symmetrically arranged between the two mounting frames (11). A motor (14) for driving the drive roller (12) is installed on one side of the mounting frame (11). Synchronous transmission components are installed on the drive roller (12) and the cutting roller (13). The transmission roller (12) has a cutting groove (15) on its curved side surface, and the cutting roller (13) has an installation groove (16) on its curved side surface. A cutting blade (17) is detachably connected in the installation groove (16), and a fixing component for fixing the cutting blade (17) is provided in the installation groove (16).

2. The polyester film slitting device for easy maintenance according to claim 1, characterized in that: The cutting blade (17) includes a base (18) and a blade (19). The blade (19) is fixedly connected to the upper side of the base (18). The base (18) is disposed in the mounting groove (16). The fixing component acts on the base (18).

3. The polyester film slitting device for easy maintenance according to claim 2, characterized in that: The fixing component includes two clamping blocks (20); The mounting groove (16) has sliding grooves (21) on both the front and rear side walls, and the two clamping blocks (20) are slidably connected to the sliding grooves (21) on the same side respectively. The base (18) has symmetrically provided limiting grooves (27) on its front and rear sides, and the clamping block (20) is fixedly provided with a limiting block (28), which is inserted into the limiting groove (27). Both sliding grooves (21) have screws (22) threaded into their bottom walls, and the ends of the screws (22) are rotatably connected to the clamping block (20).

4. The polyester film slitting device for easy maintenance according to claim 3, characterized in that: One end of the screw (22) that is threadedly connected to the sliding groove (21) extends out of the sliding groove (21) and is fixedly connected with an external hexagonal screw head (23).

5. The polyester film slitting device for easy maintenance according to claim 3, characterized in that: The synchronous transmission assembly includes two No. 1 gears (24) and two No. 2 gears (25). Two first gears (24) are symmetrically connected to the rotating shaft of the transmission roller (12) and two second gears (25) are symmetrically connected to the rotating shaft of the cutting roller (13). The first gear (24) and the second gear (25) on the same side mesh with each other.

6. The polyester film slitting device for easy maintenance according to claim 5, characterized in that: The distance between the second gear (25) and the sidewall of the cutting roller (13) on the same side is greater than the length of the screw (22).

7. The polyester film slitting device for easy maintenance according to claim 1, characterized in that: The transmission roller (12) has symmetrically fixed limiting rings (26) on its curved sidewall, and the two limiting rings (26) respectively abut against the front and rear sides of the upper edge of the cutting groove (15).

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