Slitting equipment for plastic processing

Abstract

The utility model belongs to the technical field of plastic watchband processing, particularly relates to plastic processing and slitting equipment, and aims to solve the problems that the existing mode of processing plastic into long strips with certain lengths needs to be cut off by other equipment or manual operation after being slit by a slitting machine, and the production cost is low. In order to solve the problems that in the prior art, in the prior art, the equipment investment cost is high, much manpower is consumed, and the size errors of long strips are prone to accumulation due to the fact that slitting equipment and cutting-off equipment are different, according to the scheme, the slitting and cutting-off device comprises a machine frame, and an unwinding roller is rotationally arranged at the top of the machine frame. Slitting cutting and cutting-off of a plastic watchband material are conducted synchronously, the input cost of equipment is reduced, the production efficiency of the plastic watchband is improved, the stability of the product quality is improved, the position of plastic can be effectively limited in the limiting assembly, deviation of the plastic in the conveying process is prevented, and the product quality is improved. And the cutting accuracy and stability are further ensured.

Description

A plastic processing and slitting equipment Technical Field

[0001] This utility model relates to the field of plastic watch strap processing technology, and in particular to a plastic processing and slitting device. Background Technology

[0002] Plastic watch straps are made of synthetic materials such as plastic or rubber. They are quite common in watches, especially in sports watches, children's watches, and fashion casual watches. In the processing of plastic watch straps, the plastic is usually processed into strips of a certain length, and then the strips are placed in a specific mold for injection molding.

[0003] Traditionally, plastic is processed into strips of a certain length by slitting machines, which cut the plastic into strips of a certain width. Then, other equipment or manual methods are used to cut the strips into the required lengths. This not only increases the cost of equipment investment but also requires additional manpower. Moreover, since slitting and cutting are done on different equipment, the precision and operational stability of different equipment vary, which can easily lead to the accumulation of errors in the strip dimensions and affect the quality of the final product. Therefore, we propose a plastic processing and slitting device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing methods for processing plastic into strips of a certain length, which require slitting machines to cut the plastic into strips and then cutting them with other equipment or manually. These methods have drawbacks such as high equipment investment costs, high labor costs, and the easy accumulation of dimensional errors in the strips due to the different slitting and cutting equipment. Therefore, this invention proposes a plastic processing and slitting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic processing slitting device includes a frame, a top of which is rotatably equipped with an unwinding roller. A first drive roller and a second drive roller are rotatably connected inside the frame, arranged vertically. Multiple slitting blades are fixedly sleeved on the second drive roller. A fixed plate is fixedly installed inside the frame on one side of the first drive roller. A cutter is installed inside the frame above the fixed plate. A transmission box is fixedly installed at the top of the frame, and a transmission rod is rotatably connected inside the transmission box. A receiving box is installed on one side of the frame, extending below the fixed plate. The device also includes:

[0007] The transmission assembly, located at the top of the frame, drives the slitting blades and cutters to achieve synchronous slitting and cutting of the plastic.

[0008] The limiting component is located inside the frame and between the unwinding roller and the first drive roller, and is used to limit the position of the plastic conveyor during cutting.

[0009] In one possible design, the transmission assembly includes a movable plate. Slots are formed on both inner walls of the frame. The two ends of the movable plate are respectively located within and slidably connected to the corresponding slots. The cutter is fixedly connected to the bottom of the movable plate. An eccentric wheel is rotatably mounted on one side of the transmission box via a transmission shaft. The transmission shaft extends into the transmission box and is fixedly fitted with a driven bevel gear. A connecting rod is fixedly connected to the top of the movable plate. The connecting rod slides through the top of the frame and extends to the top of the frame. A slider is fixedly connected to the top of the connecting rod. A clearance hole is formed on the slider. An eccentric shaft is fixedly connected to one side of the eccentric wheel. The eccentric shaft extends into the clearance hole and fits against the inner wall of the clearance hole. A driving bevel gear is fixedly fitted on the transmission rod, and the driven bevel gear meshes with the driving bevel gear.

[0010] In one possible design, the transmission assembly further includes two transmission gears, which are respectively fixedly sleeved on the first transmission roller and the second transmission roller, and the two transmission gears are meshed together. A first sprocket is fixedly sleeved on both the transmission rod and the first transmission roller. The two first sprockets are connected to the same first chain. The first transmission roller has multiple cutting grooves corresponding to the slitting blade.

[0011] In one possible design, a motor is fixedly mounted on the top of the frame, located on one side of the transmission box. A gearbox is fixedly mounted on the top of the frame, located between the motor and the transmission box. The input end of the gearbox is fixedly connected to the output end of the motor, and the output end of the gearbox is fixedly connected to the transmission rod.

[0012] In one possible design, the limiting assembly includes a first limiting roller, which is rotatably disposed inside the frame and close to the unwinding roller. Both sides of the frame above the first limiting roller have openings, and the same U-shaped frame is slidably connected to the two openings. The inner walls of both sides of the U-shaped frame are rotatably connected to second limiting rollers, and the top of the U-shaped frame is rotatably connected to a screw, the screw threaded through the top of the frame.

[0013] In one possible design, a second sprocket is fixedly mounted on both the first drive roller and the second sprocket, and the two second sprockets are connected by the same second chain.

[0014] In this application, firstly, the equipment is started, the motor starts working and outputs power. The motor, as the power source of the entire equipment, provides initial kinetic energy for subsequent transmission and cutting operations. The power output by the motor is transmitted to the gearbox, and the gearbox transmits the optimized power to the transmission rod, which then begins to rotate.

[0015] During the rotation of the transmission rod, the rotation of the transmission rod drives the first sprocket on it to rotate. The first sprocket drives the first sprocket on the first transmission roller through the first chain, causing the first transmission roller to rotate. Since the transmission gears on the first and second transmission rollers mesh with each other, the second transmission roller rotates with the first transmission roller. The slitting blade fixedly sleeved on the second transmission roller rotates to slit the plastic material. At the same time, during the rotation of the first and second transmission rollers, the plastic material is clamped between the first and second transmission rollers and is conveyed forward to the fixed plate to wait for cutting as the first and second transmission rollers rotate.

[0016] At the same time, the drive bevel gear fixedly mounted on the transmission rod rotates synchronously. The drive bevel gear meshes with the driven bevel gear, driving the driven bevel gear to rotate, which in turn causes the eccentric wheel to rotate. The meshing of the drive bevel gear and the driven bevel gear realizes the change of power direction, providing power support for the up and down movement of the cutter. During the rotation of the eccentric wheel, its eccentric shaft continuously pushes the inner wall of the clearance hole on the top slider of the connecting rod. Since the connecting rod is fixedly connected to the moving plate, and the two ends of the moving plate slide in the grooves on the inner walls of both sides of the frame, the moving plate can move up and down along the groove under the push of the eccentric shaft. The cutter is fixed at the bottom of the moving plate, so the cutter also realizes the up and down cutting action with the movement of the moving plate, realizing the cutting operation of plastic materials.

[0017] Before the plastic material enters the space between the first drive roller and the second drive roller for slitting, the plastic material released from the unwinding roller is first initially limited between the first limit roller and the second limit roller to ensure that it is stable in position during the transmission process and slitting. The second limit roller can be adjusted by rotating the screw so that the U-shaped frame can slide up and down in the opening, thereby accommodating plastic materials of different thicknesses.

[0018] After cutting, the plastic products fall into the receiving bin on one side of the machine frame, completing the entire plastic processing and cutting process.

[0019] Beneficial effects: In this utility model, the plastic processing and slitting equipment realizes the simultaneous slitting and cutting of plastic watch strap materials through the setting of slitting blades and cutting blades, which not only reduces the investment cost of equipment, but also improves the production efficiency of plastic watch straps;

[0020] In this utility model, the plastic processing slitting equipment provides power to both the slitting blade and the cutting blade simultaneously through a transmission component, ensuring that their movements are highly synchronized in time and rhythm, thereby improving the stability of product quality.

[0021] In this utility model, the plastic processing and slitting equipment, the first limiting roller and the adjustable-height second limiting roller in the limiting component can effectively limit the position of the plastic, prevent it from shifting during the transmission process, ensure the accuracy and stability of the cutting, and improve product quality.

[0022] In this invention, the transmission component simultaneously powers both the slitting blade and the cutting blade, enabling the slitting and cutting of the plastic watch strap material to be carried out synchronously. This not only reduces equipment investment costs and improves the production efficiency of the plastic watch strap, but also enhances the stability of product quality. Furthermore, the limiting component effectively limits the position of the plastic, preventing it from shifting during transmission and further ensuring the accuracy and stability of the cutting. Attached Figure Description

[0023] Figure 1 is a three-dimensional structural schematic diagram of a plastic processing and slitting device proposed in this utility model;

[0024] Figure 2 is a partial cross-sectional three-dimensional structural schematic diagram of a plastic processing and slitting device proposed in this utility model;

[0025] Figure 3 is a partial exploded three-dimensional structural diagram of a plastic processing and slitting device proposed in this utility model;

[0026] Figure 4 is another partial exploded three-dimensional structural diagram of a plastic processing and slitting device proposed in this utility model.

[0027] In the diagram: 1. Frame; 101. Slide groove; 102. Opening; 2. Unwinding roller; 3. First drive roller; 4. Second drive roller; 5. Drive gear; 6. Slitting blade; 7. Moving plate; 8. Cutter; 9. Fixed plate; 10. Transmission box; 11. Eccentric wheel; 12. Driven bevel gear; 13. Transmission rod; 14. Driven bevel gear; 15. Motor; 16. Gearbox; 17. Connecting rod; 18. First sprocket; 19. First chain; 20. First limiting roller; 21. U-shaped frame; 22. Second limiting roller; 23. Screw; 24. Second sprocket; 25. Second chain; 26. Receiving box. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Referring to Figures 1-4, a slitting device includes a frame 1. A unwinding roller 2 is rotatably mounted on the top of the frame 1 for unwinding plastic material to be processed. A first drive roller 3 and a second drive roller 4 are rotatably connected inside the frame 1, arranged vertically for conveying the plastic material. Multiple slitting blades 6 are fixedly mounted on the second drive roller 4 for slitting the plastic material. A fixing plate 9 is fixedly mounted inside the frame 1 on one side of the first drive roller 3 for supporting and fixing the cutter 8. The cutter 8 is positioned above the fixing plate 9 inside the frame 1 for cutting the plastic material. A transmission box 10 is fixedly mounted on the top of the frame 1, and a transmission rod 13 is rotatably connected inside the transmission box 10 for transmitting power. A receiving box 26 is positioned on one side of the frame 1, extending below the fixing plate 9 for collecting the slitting plastic material.

[0030] In this embodiment, the plastic processing and slitting equipment further includes a transmission assembly and a limiting assembly. The transmission assembly is located at the top of the frame 1 and is used to drive the slitting blade 6 and the cutter 8 to achieve synchronous slitting and cutting of the plastic. Specifically, the transmission assembly includes a moving plate 7. Slide grooves 101 are provided on both inner walls of the frame 1. The two ends of the moving plate 7 are respectively located in the corresponding slide grooves 101 and slidably connected to the slide grooves 101, allowing the moving plate 7 to slide up and down along the slide grooves 101. The cutter 8 is fixedly connected to the bottom of the moving plate 7. When the moving plate 7 slides up and down, it drives the cutter 8 to move synchronously, achieving the cutting action.

[0031] An eccentric wheel 11 is rotatably mounted on one side of the transmission box 10 via a transmission shaft. The transmission shaft extends into the transmission box 10 and is fixedly fitted with a driven bevel gear 12. A connecting rod 17 is fixedly connected to the top of the movable plate 7. The connecting rod 17 slides through the top of the frame 1 and extends above the frame 1. A slider is fixedly connected to the top of the connecting rod 17, and a clearance hole is provided on the slider. An eccentric shaft is fixedly connected to one side of the eccentric wheel 11. The eccentric shaft extends into the clearance hole and fits against the inner wall of the clearance hole. When the eccentric wheel 11 rotates, the cooperation of the eccentric shaft and the slider drives the connecting rod 17 and the movable plate 7 to reciprocate up and down, thereby realizing the cutting action of the cutter 8.

[0032] A drive bevel gear 14 is fixedly sleeved on the transmission rod 13, and a driven bevel gear 12 is meshed with the drive bevel gear 14. When the transmission rod 13 rotates, the meshing connection between the drive bevel gear 14 and the driven bevel gear 12 drives the eccentric wheel 11 to rotate, thereby driving the cutter 8 to perform a cutting action.

[0033] Furthermore, the transmission assembly also includes two transmission gears 5, which are respectively fixedly sleeved on the first transmission roller 3 and the second transmission roller 4, and are meshed together. A first sprocket 18 is fixedly sleeved on both the transmission rod 13 and the first transmission roller 3, and the two first sprockets 18 are connected to the same first chain 19. When the transmission rod 13 rotates, it drives the first transmission roller 3 to rotate through the transmission connection of the first sprockets 18 and the first chain 19. The first transmission roller 3, through the meshing connection of the transmission gears 5, drives the second transmission roller 4 to rotate synchronously, thereby realizing the slitting and cutting action of the slitting blade 6. The first transmission roller 3 has multiple cutting grooves corresponding to the slitting blade 6 to accommodate the slitting blade 6 and ensure smooth slitting and cutting.

[0034] A limiting component is located inside the frame 1, between the unwinding roller 2 and the first drive roller 3, and is used to limit the position of the plastic material during conveying and cutting. Specifically, the limiting component includes a first limiting roller 20, which is rotatably disposed inside the frame 1, close to the unwinding roller 2, to initially limit the position of the plastic material. Openings 102 are provided on both sides of the frame 1 above the first limiting roller 20, and a U-shaped frame 21 is slidably connected within the two openings 102. Second limiting rollers 22 are rotatably connected to the inner walls of both sides of the U-shaped frame 21 to further limit the position of the plastic material. A screw 23 is rotatably connected to the top of the U-shaped frame 21, and the screw 23 is threaded through the top of the frame 1. By rotating the screw 23, the height of the U-shaped frame 21 can be adjusted, thereby adjusting the pressure of the second limiting roller 22 on the plastic material to achieve a better limiting effect.

[0035] This application can be used in the field of plastic watch strap processing technology, or in other fields applicable to this application.

[0036] Example 2: Referring to Figures 3-4, an improvement upon Example 1 is provided: a plastic processing and slitting device applied to the field of plastic watch strap processing technology. Furthermore, to drive the transmission rod 13 to rotate, a motor 15 is fixedly mounted on the top of the frame 1, located on one side of the transmission box 10. A gearbox 16 is fixedly mounted on the top of the frame 1, between the motor 15 and the transmission box 10. The input end of the gearbox 16 is fixedly connected to the output end of the motor 15, and the output end of the gearbox 16 is fixedly connected to the transmission rod 13. When the motor 15 starts, the transmission rod 13 rotates through the speed-changing action of the gearbox 16, thereby driving the entire transmission assembly and limiting assembly to work.

[0037] In addition, to further improve the stability and reliability of the equipment transmission, a second sprocket 24 is fixedly sleeved on both the first transmission roller 3 and the second limiting roller 22, and the two second sprockets 24 are driven by the same second chain 25. Through the transmission connection of the second sprockets 24 and the second chain 25, the transmission stability between the first transmission roller 3 and the second limiting roller 22 can be enhanced, ensuring the accurate positioning of the plastic material during the conveying process.

[0038] However, as is well known to those skilled in the art, the working principles and wiring methods of **devices and **devices are commonplace and belong to conventional methods or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic processing and slitting device, comprising a frame (1), characterized in that, The top of the frame (1) is rotatably equipped with an unwinding roller (2). Inside the frame (1) are rotatably connected a first drive roller (3) and a second drive roller (4). The first drive roller (3) and the second drive roller (4) are arranged vertically. Multiple slitting blades (6) are fixedly sleeved on the second drive roller (4). Inside the frame (1) on one side of the first drive roller (3), a fixing plate (9) is fixedly installed. Inside the frame (1) above the fixing plate (9), a cutter (8) is installed. The top of the frame (1) is fixedly equipped with a transmission box. (10) The transmission box (10) is rotatably connected to the transmission rod (13). A receiving box (26) is provided on one side of the frame (1). The receiving box (26) extends to the bottom of the fixed plate (9). It also includes: a transmission assembly, which is provided on the top of the frame (1) and is used to drive the slitting blade (6) and the cutter (8) to realize the synchronous slitting and cutting of plastic; a limiting assembly, which is provided inside the frame (1) and located between the unwinding roller (2) and the first transmission roller (3) and is used to limit the position of plastic conveying and cutting.

2. The plastic processing and slitting equipment according to claim 1, characterized in that, The transmission assembly includes a movable plate (7). Slide grooves (101) are provided on both inner walls of the frame (1). The two ends of the movable plate (7) are respectively located within the corresponding slide grooves (101) and slidably connected to them. The cutter (8) is fixedly connected to the bottom of the movable plate (7). An eccentric wheel (11) is rotatably mounted on one side of the transmission box (10) via a transmission shaft. The transmission shaft extends into the interior of the transmission box (10) and is fixedly fitted with a driven bevel gear (12). The movable plate (7)... A connecting rod (17) is fixedly connected to the top. The connecting rod (17) slides through the top of the frame (1) and extends to the top of the frame (1). A slider is fixedly connected to the top of the connecting rod (17). A clearance hole is provided on the slider. An eccentric shaft is fixedly connected to one side of the eccentric wheel (11). The eccentric shaft extends into the interior of the clearance hole and fits against the inner wall of the clearance hole. A drive bevel gear (14) is fixedly sleeved on the transmission rod (13). The driven bevel gear (12) meshes with the drive bevel gear (14).

3. The plastic processing and slitting equipment according to claim 2, characterized in that, The transmission assembly also includes two transmission gears (5), which are fixedly sleeved on the first transmission roller (3) and the second transmission roller (4) respectively. The two transmission gears (5) are meshed and connected. The transmission rod (13) and the first transmission roller (3) are both fixedly sleeved with first sprockets (18). The two first sprockets (18) are connected to the same first chain (19). The first transmission roller (3) has multiple cutting grooves corresponding to the slitting blades (6).

4. The plastic processing and slitting equipment according to claim 3, characterized in that, A motor (15) is fixedly mounted on the top of the frame (1) on one side of the transmission box (10). A gearbox (16) is fixedly mounted on the top of the frame (1) between the motor (15) and the transmission box (10). The input end of the gearbox (16) is fixedly connected to the output end of the motor (15), and the output end of the gearbox (16) is fixedly connected to the transmission rod (13).

5. The plastic processing and slitting equipment according to claim 1, characterized in that, The limiting assembly includes a first limiting roller (20), which is rotatably set inside the frame (1) and close to the unwinding roller (2). Both sides of the frame (1) above the first limiting roller (20) are provided with openings (102). The same U-shaped frame (21) is slidably connected in the two openings (102). The inner walls of both sides of the U-shaped frame (21) are rotatably connected with second limiting rollers (22). The top of the U-shaped frame (21) is rotatably connected with a screw (23), which is threaded through the top of the frame (1).

6. The plastic processing and slitting equipment according to claim 5, characterized in that, A second sprocket (24) is fixedly sleeved on both the first transmission roller (3) and the second limiting roller (22), and the two second sprockets (24) are connected to the same second chain (25).

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