Cutting equipment for PET sheet extrusion production line
By designing a PET sheet cutting equipment including a bracket, a fixing rod, an electric screw, a guide rod, a tool holder and a cutting knife, the problem of cumbersome and time-consuming and labor-consuming PET sheet cutting operations in the prior art is solved, and automated cutting is realized, and cutting efficiency and effect are improved.
Patent Information
- Application Number
- CN202421659280.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing PET sheet cutting process requires manual transfer and straightening of the sheet, which is cumbersome, time-consuming and labor-consuming, and easy to lose materials and poor cutting effect.
A cutting equipment for PET sheet extrusion production line is designed, including a bracket, a fixing rod, an electric screw, a guide rod, a knife seat and a cutting knife. By controlling the work of the electric screw, the guide rod, a knife seat and a cutting knife are used to realize the movement of the cutting knife in the front and rear direction, and directly cut the flat and straightened PET sheet.
It realizes automatic cutting and separation of the curled PET sheet without manual transfer and straightening, which is easy to operate, saves time and effort, has good cutting effect, and improves work efficiency.
Smart Images
Figure CN222807128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PET sheets, in particular to cutting equipment for a PET sheet extrusion production line. Background Art
[0002] PET sheet is a thin sheet of thermoplastic polyester engineering plastic material formed by extrusion and extension of PET resin. It is widely used in industry and daily necessities, especially in food packaging, electronic appliances, automobiles, textiles and other fields. During the production process, PET sheet is usually rolled up first and then cut.
[0003] At present, when PET sheets are cut after being extruded and rolled up, it is usually necessary to unroll the PET roll from the reel and pull the PET sheet flatly to another reel to keep the PET sheet straight and without slippage, and ensure that the PET sheet is correctly centered before cutting it; however, with the above-mentioned cutting method, the PET sheet needs to be manually transferred and straightened each time before cutting, which is cumbersome, time-consuming and labor-intensive. If the operation is not in place, the material is easily wasted and the cutting effect is poor. Utility Model Content
[0004] In order to overcome the shortcomings of the current PET sheet cutting, which requires manual transfer and straightening of the PET sheet each time before cutting, which is cumbersome, time-consuming and labor-intensive, and easily leads to material loss and poor cutting effect if the operation is not in place, the utility model aims to provide a cutting device for a PET sheet extrusion production line.
[0005] The technical scheme of the utility model is: a cutting device for a PET sheet extrusion production line, comprising a bracket, a fixed rod, an electric screw, a guide rod, a knife seat and a cutting knife, the lower left side of the bracket is symmetrically connected with the fixed rod front and back, the right sides of the two fixed rods are rotatably connected with the electric screw, the knife seat is threadedly connected on the electric screw, the cutting knife is arranged on the right side of the knife seat, the guide rod for guiding the knife seat is connected between the right parts of the two fixed rods, the guide rod is located on the left side of the electric screw, and the left part of the knife seat is slidably connected with the guide rod.
[0006] As an improvement of the above solution, a limiting frame is also included. A limiting frame for limiting the PET sheet is connected between the front and rear sides of the lower right side of the bracket. The limiting frame is located on the right side of the cutting knife, and the cutting knife slides through the left side of the limiting frame.
[0007] As an improvement of the above scheme, it also includes an electric push rod, a roller frame and a clamping roller. The electric push rods are symmetrically connected to the middle of the left and right sides of the bracket. The roller frames are connected to the telescopic rods of the electric push rods. The two roller frames are symmetrically distributed on the left and right sides. The clamping roller for clamping the PET sheet is connected to the side where the roller frames are close to each other.
[0008] As an improvement of the above scheme, it also includes a limit plate and an adjustment mechanism. The right roller frame is symmetrically slidably connected with a limit plate for limiting the PET sheet, and the right roller frame is provided with an adjustment mechanism for adjusting the distance between the two limit plates.
[0009] As an improvement of the above scheme, the adjustment mechanism includes a connecting frame, an adjusting screw, a guide rod and a transmission assembly. The top of the roller frame on the right side is symmetrically connected to the connecting frame front and back, and the front connecting frame is rotatably connected to the adjusting screw for driving the limit plate to move. The upper part of the front limit plate is threadedly connected to the adjusting screw, and the rear connecting frame is connected to the guide rod. The upper part of the rear limit plate is slidably connected to the guide rod, and a transmission assembly is provided on the roller frame on the right.
[0010] As an improvement of the above scheme, the transmission assembly includes a fixed ring, a swivel and a connecting rod. A fixed ring is connected to the middle part of the right side of the roller frame on the right side, and a swivel is rotatably connected to the fixed ring. There are two connecting rods. The ends of the connecting rods that are close to each other are rotatably connected to the upper and lower parts of the swivel, and the ends of the connecting rods that are away from each other are rotatably connected to the lower right parts of the two limit plates.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model controls the operation of the electric screw, and under the cooperation of the guide rod, the knife seat and the cutting knife, the cutting knife is moved in the front and rear directions, and can directly cut the flat and straightened PET sheet, thereby completing the cutting and separation of the rolled PET sheet, without the need for manual transfer and straightening before cutting, the utility model is easy to operate, saves time and effort, has a good cutting effect, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0013] Figure 2 It is a three-dimensional structural schematic diagram of the fixed rod, electric screw rod, guide rod and other components of the utility model.
[0014] Figure 3 It is a three-dimensional structural schematic diagram of the roller frame, clamping roller and other components of the utility model.
[0015] Figure 4 It is a three-dimensional structural schematic diagram of the connecting frame, adjusting screw, limiting plate and other components of the utility model.
[0016] Explanation of the reference numerals: 1. bracket, 2. fixing rod, 3. electric screw, 4. guide rod, 5. PET sheet, 6. knife holder, 7. cutting knife, 8. limit frame, 9. electric push rod, 10. roller frame, 11. clamping roller, 12. connecting frame, 13. adjusting screw, 14. limit plate, 15. fixing ring, 16. swivel, 17. guide rod, 18. connecting rod. DETAILED DESCRIPTION
[0017] 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.
[0018] Embodiment: A cutting device for a PET sheet extrusion production line, such as Figure 1 and Figure 2 As shown, it includes a bracket 1, a fixed rod 2, an electric screw 3, a guide rod 4, a knife seat 6 and a cutting knife 7. The fixed rod 2 is symmetrically fixedly connected to the lower left side of the bracket 1, and the electric screw 3 is rotatably connected between the right sides of the two fixed rods 2. The knife seat 6 is threadedly connected on the electric screw 3. The cutting knife 7 is detachably installed on the right side of the knife seat 6. The cutting knife 7 is a front and rear double-edged blade structure. The guide rod 4 is fixedly connected between the right parts of the two fixed rods 2, and the guide rod 4 is located on the left side of the electric screw 3. The left part of the knife seat 6 is slidably connected to the guide rod 4.
[0019] like Figure 1 As shown, it also includes a limiting frame 8, which is fixedly connected between the front and rear sides of the lower right side of the bracket 1. The limiting frame 8 is located on the right side of the cutting knife 7, and the right side of the cutting knife 7 slides through the left side of the limiting frame 8.
[0020] like Figure 3 As shown, it also includes an electric push rod 9, a roller frame 10 and a clamping roller 11. The electric push rod 9 is symmetrically fixedly connected to the middle of the left and right sides of the bracket 1. The roller frame 10 is fixedly connected to the telescopic rod of the electric push rod 9. The two roller frames 10 are symmetrically distributed on the left and right sides, and the clamping roller 11 is fixedly connected to the side where the roller frames 10 are close to each other.
[0021] like Figure 4 As shown, it also includes a limit plate 14 and an adjustment mechanism. The limit plate 14 is symmetrically connected to the front and rear sliding of the roller frame 10 on the right side. The limit plate 14 is an inverted L-shaped structure, and the roller frame 10 on the right side is provided with an adjustment mechanism; the adjustment mechanism includes a connecting frame 12, an adjusting screw 13, a guide rod 17 and a transmission assembly. The top of the roller frame 10 on the right side is symmetrically fixedly connected to the connecting frame 12 on the front and rear sides, the adjusting screw 13 is rotatably connected between the front and rear sides of the connecting frame 12 on the front side, the upper part of the limit plate 14 on the front side is threadedly connected to the adjusting screw 13, the guide rod 17 is fixedly connected between the front and rear sides of the connecting frame 12 on the rear side, the upper part of the limit plate 14 on the rear side is slidably connected to the guide rod 17, and the roller frame 10 on the right side is provided with a transmission assembly.
[0022] like Figure 4As shown, the transmission assembly includes a fixed ring 15, a swivel 16 and a connecting rod 18. The fixed ring 15 is fixedly connected to the middle part of the right side of the roller frame 10 on the right side, and the swivel 16 is rotatably connected to the fixed ring 15. There are two connecting rods 18. The ends of the connecting rods 18 that are close to each other are rotatably connected to the upper and lower parts of the swivel 16 respectively, and the ends of the connecting rods 18 that are away from each other are rotatably connected to the lower right parts of the two limit plates 14 respectively.
[0023] Working principle: This equipment is installed directly above the winding device, so that the electric screw 3 is located directly above the reel and parallel to each other; when working, the PET sheet 5 is made to slide downward in sequence through the two clamping rollers 11 and between the electric screw 3 and the limit frame 8, and the extruded PET sheet 5 is wound up through the reel.
[0024] When the PET sheet 5 needs to be cut after winding, the telescopic rods of the two electric push rods 9 are synchronously controlled to extend, and the driving roller frame 10 drives the clamping roller 11 to move toward the side close to each other until the two clamping rollers 11 contact the left and right sides of the PET sheet 5 respectively, thereby clamping the PET sheet 5, and then the adjusting screw 13 is rotated to drive the front limit plate 14 to move backward, and the rear limit plate 14 slides forward along the guide rod 17 through the transmission action of the connecting rod 18 and the swivel 16, so that the distance between the two limit plates 14 can be adjusted, until the two limit plates 14 contact the front and rear sides of the PET sheet 5 respectively, thereby limiting the PET sheet 5, which can effectively prevent the PET sheet 5 from deflecting, and then The electric screw 3 is controlled to work, and under the guidance of the guide rod 4, the knife seat 6 is driven to drive the cutting knife 7 to move in the front-to-back direction. The PET sheet 5 can be cut through the contact between the cutting knife 7 and the PET sheet 5. In this process, the PET sheet 5 can be supported and limited through the contact between the left side of the limiting frame 8 and the right side of the PET sheet 5, thereby ensuring the cutting effect, until the cutting knife 7 completely penetrates the PET sheet 5 front and back, thereby completing the cutting of the PET sheet 5; in this way, the flattened and straightened PET sheet 5 can be directly cut, thereby completing the cutting and separation of the rolled PET sheet 5, without the need for manual transfer and straightening and then cutting, the operation is simple, time-saving and labor-saving, the cutting effect is good, and the work efficiency is improved.
[0025] Then, the reel on which the PET sheet 5 is rolled up is removed and replaced with a new reel, and the adjusting screw 13 is reversed. Under the transmission action of the connecting rod 18 and the swivel 16, the two limit plates 14 are moved and reset to the side away from each other, so that the two limit plates 14 are out of contact with the PET sheet 5, thereby releasing the limit on the PET sheet 5, and then the telescopic rods of the two electric push rods 9 are synchronously controlled to shorten, and the driving roller frame 10 drives the clamping rollers 11 to move and reset to the side away from each other, so that the two clamping rollers 11 are out of contact with the left and right sides of the PET sheet 5, thereby releasing the clamping of the PET sheet 5, and then the PET sheet 5 can be rolled up on the next reel. After the rolling is completed, the above operation is repeated to complete the cutting of the next roll of PET sheet 5.
[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A cutting device for a PET sheet extrusion production line, comprising a cutting knife (7), characterized in that: The utility model also comprises a bracket (1), a fixed rod (2), an electric screw rod (3), a guide rod (4) and a knife seat (6); the lower left side of the bracket (1) is symmetrically connected to the fixed rod (2) in the front and rear; the right sides of the two fixed rods (2) are rotatably connected to the electric screw rod (3); the knife seat (6) is threadedly connected to the electric screw rod (3); a cutting knife (7) is arranged on the right side of the knife seat (6); a guide rod (4) for guiding the knife seat (6) is connected between the right sides of the two fixed rods (2); the guide rod (4) is located on the left side of the electric screw rod (3); and the left side of the knife seat (6) is slidably connected to the guide rod (4).
2. A cutting device for a PET sheet extrusion production line according to claim 1, characterized in that: It also comprises a limiting frame (8), which is connected between the front and rear sides of the lower right side of the bracket (1) and is used to limit the PET sheet (5). The limiting frame (8) is located on the right side of the cutting knife (7), and the cutting knife (7) slides through the left side of the limiting frame (8).
3. A cutting device for a PET sheet extrusion production line according to claim 2, characterized in that: The bracket (1) further comprises an electric push rod (9), a roller frame (10) and a clamping roller (11). The electric push rod (9) is symmetrically connected to the middle of the left and right sides of the bracket (1). The telescopic rod of the electric push rod (9) is connected to the roller frame (10). The two roller frames (10) are symmetrically distributed on the left and right sides. The side of the roller frames (10) close to each other is connected to the clamping roller (11) for clamping the PET sheet (5).
4. A cutting device for a PET sheet extrusion production line according to claim 3, characterized in that: The invention also comprises a limit plate (14) and an adjustment mechanism, wherein the limit plate (14) for limiting the PET sheet (5) is symmetrically slidably connected to the right roller frame (10) in the front and rear directions, and the adjustment mechanism for adjusting the distance between the two limit plates (14) is provided on the right roller frame (10).
5. A cutting device for a PET sheet extrusion production line according to claim 4, characterized in that: The adjusting mechanism comprises a connecting frame (12), an adjusting screw (13), a guide rod (17) and a transmission assembly. The top of the right roller frame (10) is symmetrically connected to the connecting frame (12) in front and back directions. The front connecting frame (12) is rotatably connected to an adjusting screw (13) for driving a limit plate (14) to move. The upper part of the front limit plate (14) is threadedly connected to the adjusting screw (13). The rear connecting frame (12) is connected to the guide rod (17). The upper part of the rear limit plate (14) is slidably connected to the guide rod (17). The right roller frame (10) is provided with a transmission assembly.
6. A cutting device for a PET sheet extrusion production line according to claim 5, characterized in that: The transmission assembly comprises a fixed ring (15), a swivel (16) and a connecting rod (18). The middle part of the right side of the roller frame (10) is connected with the fixed ring (15). The fixed ring (15) is rotatably connected with the swivel (16). There are two connecting rods (18). The ends of the connecting rods (18) close to each other are rotatably connected to the upper and lower parts of the swivel (16), and the ends of the connecting rods (18) far away from each other are rotatably connected to the lower parts of the right sides of the two limit plates (14).