Film roll supporting pipe cutting device

Abstract

The utility model discloses a cutting device for a film roll supporting pipe. The cutting device is characterized by comprising a rack, a cutting mechanism, a supporting mechanism and a pressing mechanism, wherein the cutting mechanism, the supporting mechanism and the pressing mechanism are arranged on the rack; the supporting mechanism comprises two parallel supporting rollers and a driving mechanism for driving one supporting roller to rotate, the supporting rollers are rotationally installed on the rack, and a discharging space is formed between the two supporting rollers; the material pressing mechanism is vertically and movably arranged over the material containing space, and a pressing wheel is rotationally installed at the bottom of the material pressing mechanism. The cutting mechanism comprises a pushing air cylinder, a support, a motor and a cutter, the motor and the cutter are installed on the support, the middle of the support is rotationally connected with the rack, the cutter is arranged over the discharging space, and the motor is configured to drive the cutter to rotate; the pushing air cylinder is configured to drive the support to rotate. According to the utility model, the cutting efficiency and stability are improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the field of printing, in particular to a cutting device for a film roll support tube. Background Art

[0002] When producing products such as paper and plastic film, generally, they are wound around a support tube with a hollow structure for support. Among them, for small-diameter and small-size film rolls, paper tubes are generally used for winding and support. For large-diameter and large-size film rolls, due to their relatively large weight, hollow support tubes made of hard materials are used for support. Since this support tube is generally a disposable material, the hard material support tube is generally made of plastic tube or hard paper tube, and the support tubes are all in a certain length specification after leaving the factory, and the width of the film roll is adjusted according to actual production. Therefore, the operator will pre-cut the support tube with a corresponding length according to the width of the film roll.

[0003] In the existing method, when cutting the hard support tube, it is manually cut with a cutting machine. In this method, the cutting efficiency is relatively low, and manual operation has certain safety hazards. Moreover, during the cutting process, the support tube needs to be positioned, which is inconvenient for cutting. At the same time, for manual cutting, the cutting surface is not flat enough, and the edges need to be polished neatly later. Therefore, how to solve the above technical problems is the direction that the personnel in this field need to work hard on. Summary of the Invention

[0004] The purpose of the utility model is to provide a cutting device for a film roll support tube. By using this structure, the convenience of cutting is improved, the labor intensity of the operator is reduced, and the operation safety is also improved.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a cutting device for a film roll support tube, including a frame, a cutting mechanism, a support mechanism and a pressing mechanism arranged on the frame;

[0006] The support mechanism includes two mutually parallel support rollers and a driving mechanism for driving one of the support rollers to rotate. The support rollers are rotatably installed on the frame, and a feeding space is formed between the two support rollers;

[0007] The pressing mechanism is vertically movably arranged directly above the feeding space, and a pressing wheel is rotatably installed at the bottom of the pressing mechanism;

[0008] The cutting mechanism includes a pushing cylinder, a motor mounted on a bracket, and a cutting knife. The middle part of the bracket is rotatably connected to the frame. The cutting knife is rotatably connected to the right end of the bracket, and the cutting knife is arranged directly above the feeding space. The motor is configured to drive the cutting knife to rotate. The bottom of the pushing cylinder is mounted on the frame, and the pushing cylinder is configured to drive the bracket to rotate, so that the cutting knife is close to or away from the feeding space.

[0009] In the above technical solution, the motor is mounted on the left side of the top of the bracket, and the cutting knife is rotatably connected to the bracket through a coupling shaft.

[0010] There is also a belt, and both ends of the belt are respectively connected to the output shaft of the motor and the coupling shaft. The motor drives the coupling shaft and the cutting knife to rotate through the belt.

[0011] In the above technical solution, the coupling shaft is arranged parallel to the supporting roller. The middle part of the coupling shaft is rotatably connected to the right side of the top of the bracket. The front end of the coupling shaft is arranged at the front end of the bracket, and the bottom plane of the cutting knife is arranged below the bottom surface of the bracket.

[0012] A first pulley is arranged on the output shaft of the motor, a second pulley is arranged at the rear end of the coupling shaft, and the belt is wound around the first pulley and the second pulley.

[0013] In the above technical solution, the bottom of the pushing cylinder is rotatably connected to the frame, and the output shaft at the top of the pushing cylinder is rotatably connected to the bottom of the left end of the bracket.

[0014] In the above technical solution, the pressing mechanism includes a pressing cylinder, a U-shaped frame and a pressing wheel. The pressing cylinder is mounted on the frame above the bracket. The left end of the U-shaped frame is provided with a U-shaped opening, and the right end of the bracket is arranged in the U-shaped opening.

[0015] The pressing wheel is rotatably mounted on the side wall below the U-shaped frame. The output shaft at the bottom of the pressing cylinder is connected to the top of the bracket. The pressing cylinder is configured to drive the U-shaped frame and the pressing wheel to move up and down, so that the pressing wheel is close to or away from the feeding space.

[0016] In the above technical solution, there are two pressing wheels. The two pressing wheels are arranged at intervals left and right. A pressing distance is formed between the two pressing wheels. The pressing distance is arranged directly opposite to the feeding space, and the pressing wheels are arranged behind the cutting knife.

[0017] In the above technical solution, the axis of the pressing wheel is arranged parallel to the supporting roller.

[0018] In the above technical solution, the driving mechanism includes a driving motor and a chain. The driving motor is installed below the supporting roller. One end of a supporting roller is provided with a first sprocket, and the output shaft of the driving motor is provided with a second sprocket. The chain is wound around the first sprocket and the second sprocket.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] 1. In the utility model, the supporting mechanism is used to support the product and drive it to rotate, and then the pressing mechanism is used to limit the product, so that the product rotates stably on the supporting mechanism. Then, the cutting mechanism is used to cut the product, so that the stable cutting of the product can be realized, the cutting efficiency is effectively improved, the labor intensity of the operator is reduced, the safety in the cutting process is improved, and the neatness of the end of the product is ensured at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the first embodiment of the utility model (the product is placed in the feeding space, and the pressing wheel and the cutting tool are set away from the product);

[0022] Figure 2 is Figure 1 the sectional structural diagram of A-A in

[0023] Figure 3 is a schematic structural diagram of the first embodiment of the utility model (the product is placed in the feeding space, the pressing wheel presses on the product, and the cutting tool rotates to cut the product).

[0024] Wherein: 1, frame; 2, supporting roller; 3, feeding space; 4, pressing wheel; 5, pushing cylinder; 6, bracket; 7, motor; 8, cutting tool; 9, product; 10, coupling shaft; 11, belt; 12, first belt pulley; 13, second belt pulley; 14, pressing cylinder; 15, U-shaped frame; 16, second sprocket; 17, driving motor; 18, chain; 19, first sprocket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the utility model with reference to the drawings and embodiments:

[0026] Embodiment 1: Refer to Figures 1-3 As shown, a film roll support tube cutting device includes a frame 1, a cutting mechanism, a supporting mechanism and a pressing mechanism arranged on the frame 1;

[0027] The supporting mechanism includes two mutually parallel supporting rollers 2 and a driving mechanism for driving one of the supporting rollers 2 to rotate. The supporting rollers 2 are rotatably installed on the frame 1, and a feeding space 3 is formed between the two supporting rollers 2;

[0028] The blanking mechanism is vertically movably arranged directly above the blanking space 3, and a pressing wheel 4 is rotatably installed at the bottom of the blanking mechanism;

[0029] The cutting mechanism includes a pushing cylinder 5, a bracket 6, a motor 7 installed on the bracket, and a cutter 8. The middle part of the bracket 6 is rotatably connected to the frame 1. The cutter 8 is rotatably connected to the right end of the bracket 6, and the cutter 8 is arranged directly above the blanking space 3. The motor 7 is configured to drive the cutter 8 to rotate; the bottom of the pushing cylinder 5 is installed on the frame 1, and the pushing cylinder 5 is configured to drive the bracket 6 to rotate, so that the cutter 8 is arranged close to or away from the blanking space 3.

[0030] In this embodiment, during actual use, the product 9 (a rigid support tube with a hollow structure) is placed in the blanking space, and its bottom two sides are abutted against two support rollers. The position of the product is adjusted so that the required cutting position is directly opposite to the cutter. Then, the equipment is controlled to work. Among them, a controller is arranged on the frame, and the controller controls the work of each mechanism. The driving mechanism drives one support roller to rotate. At the same time, the blanking mechanism drives the pressing wheel to move downward, so that the pressing wheel abuts against the top surface of the product, pressing the product in the blanking space, and the two bottom sides of the product will always be in contact with the two support rollers. During this process, since the driving mechanism drives one support roller to rotate, the product will be driven to rotate accordingly, and then the other support roller will be driven to rotate synchronously. Since the pressing wheel presses on the top of the product, the pressing wheel also rotates. Then, the motor drives the cutter to rotate, and the output shaft of the pushing cylinder extends, pushing the left end of the bracket to rise, so that the right end of the bracket descends, driving the cutter to move downward. The rotating cutter abuts against the product, and a circumferential cut is made on the rotating product, realizing the fast and stable cutting of the product. After the cutting is completed, the cylinder output shaft retracts, the pressing wheel rises, and the driving mechanism stops running, waiting for the next cutting. In this way, the cutting efficiency of the product is high, the stability is good, the labor intensity of the operator is low, and the cut is flat.

[0031] See Figures 1-3 As shown, the motor 7 is installed on the left side of the top of the bracket 6, and the cutter 8 is rotatably connected to the bracket 6 through a coupling 10;

[0032] A belt 11 is further provided. The two ends of the belt 11 are respectively connected to the output shaft of the motor 7 and the coupling 10, and the motor 7 drives the coupling 10 and the cutter 8 to rotate through the belt 11.

[0033] The coupling 10 is arranged parallel to the support roller 2. The middle part of the coupling 10 is rotatably connected to the right side of the top of the bracket 6. The front end of the coupling 10 is arranged at the front end of the bracket 6, and the bottom plane of the cutter 8 is arranged below the bottom surface of the bracket 6;

[0034] A first pulley 12 is provided on the output shaft of the motor 7, a second pulley 13 is provided at the rear end of the coupling shaft 10, and the belt 11 is wound around the first pulley 12 and the second pulley 13.

[0035] In this embodiment, the middle part of the coupling shaft is rotatably connected to the right side of the top of the bracket. The cutting knife is an annular cutting knife, which is directly installed outside the front end of the coupling shaft. In this way, after the cutting knife is worn or damaged, it is convenient to replace the cutting knife. At the same time, the motor drives the coupling shaft to rotate through the belt, so as to drive the cutting knife to rotate.

[0036] See Figures 1-3 As shown, the bottom of the pushing cylinder 5 is rotatably connected to the frame 1, and the output shaft at the top of the pushing cylinder 5 is rotatably connected to the bottom left end of the bracket 6.

[0037] In this embodiment, in order to ensure the stability of the extension and retraction of the output shaft of the cylinder and stably drive the bracket to rotate, therefore, the bottom of the cylinder is rotatably connected to the frame, and the output shaft of the cylinder is rotatably connected to the bracket.

[0038] See Figures 1-3 As shown, the material pressing mechanism includes a material pressing cylinder 14, a U-shaped frame 15 and a pressing wheel 4. The material pressing cylinder 14 is installed on the frame 1 above the bracket 6. The left end of the U-shaped frame 15 is provided with a U-shaped opening, and the right end of the bracket 6 is arranged in the U-shaped opening;

[0039] The pressing wheel 4 is rotatably installed on the side wall below the U-shaped frame 15. The output shaft at the bottom of the material pressing cylinder 14 is connected to the top of the bracket 6. The material pressing cylinder 14 is configured to drive the U-shaped frame 15 and the pressing wheel 4 to move up and down, so that the pressing wheel 4 is close to or away from the feeding space 3. The pressing wheel is arranged behind the cutting knife.

[0040] In this embodiment, the pressing wheel is rotatably installed on the U-shaped frame. When the output shaft of the material pressing cylinder extends and retracts, it drives the pressing wheel to move up and down. When the output shaft of the material pressing cylinder extends, it drives the pressing wheel to move downwards, pressing the product tightly in the feeding space, so that the two sides of the bottom of the product are abutted against the two support rollers. In this way, when the support rollers rotate, they can drive the product to rotate together, so as to ensure that when the cutting knife moves downwards, it can cut through the product of the hollow mechanism, so as to ensure that the product is cut off. At the same time, the pressing wheel is arranged behind the cutting knife and is close to the cutting knife, so as to prevent the problem that the end of the product at the cutting position jumps up during the cutting process, ensuring the stability of cutting and the cutting quality.

[0041] Further, in order to facilitate the setting of the pressure wheel beside the cutting knife without affecting the up-and-down movement of the pressure wheel driven by the output shaft of the pressure cylinder, a U-shaped frame is used to connect the pressure wheel and the pressure cylinder. The U-shaped opening of the U-shaped frame gives way to the right end of the bracket to ensure that there is no interference between the two during the extension and retraction of the cylinder output shaft and the rotation of the bracket.

[0042] See Figure 1 , 3 As shown, there are two pressure wheels 4, and the two pressure wheels 4 are arranged at intervals left and right. A pressure feeding distance is formed between the two pressure wheels 4, and the pressure feeding distance is set opposite to the feeding space 3.

[0043] The axis of the pressure wheel 4 is parallel to the support roller 2.

[0044] If only one pressure wheel is set, during the rotation of the product, the problem of pressure wheel offset may occur, resulting in the deformation of the output shaft of the pressure cylinder due to the lateral force. Therefore, two pressure wheels are set, and the two pressure wheels are respectively pressed on both sides of the top of the product, so that the product is stably pressed in the feeding space, and the cylinder only receives the axial force.

[0045] See Figures 1-3 As shown, the driving mechanism includes a driving motor 17 and a chain 18. The driving motor 17 is installed below the support roller 2. A first sprocket 19 is provided at the end of one support roller 2, and a second sprocket 16 is provided on the output shaft of the driving motor 17. The chain 18 is wound around the first sprocket 19 and the second sprocket 16.

[0046] In this embodiment, the motor drives the support roller to rotate through the chain, so as to synchronously drive the products on the two support rollers to rotate together. When the cutting knife contacts one side of the product and cuts one side, during the rotation of the product, the circumferential cutting of the product is realized, and the cutting effect is good and the cut is flat.

Claims

1. A cutting device for a film roll support tube, characterized in that: It includes a frame, a cutting mechanism, a supporting mechanism and a material pressing mechanism arranged on the frame; The supporting mechanism includes two parallel supporting rollers and a driving mechanism for driving one of the supporting rollers to rotate. The supporting rollers are rotatably installed on the frame, and a material feeding space is formed between the two supporting rollers; The material pressing mechanism is vertically movably arranged directly above the material feeding space, and a pressing wheel is rotatably installed at the bottom of the material pressing mechanism; The cutting mechanism includes a pushing cylinder, a motor installed on a bracket and a cutting knife. The middle part of the bracket is rotatably connected to the frame, the cutting knife is rotatably connected to the right end of the bracket, and the cutting knife is arranged directly above the material feeding space. The motor is configured to drive the cutting knife to rotate; The bottom of the pushing cylinder is installed on the frame, and the pushing cylinder is configured to drive the bracket to rotate, so that the cutting knife is arranged close to or far from the material feeding space.

2. The film roll support tube cutting device according to claim 1, characterized in that: The motor is installed on the left side of the top of the bracket, and the cutting knife is rotatably connected to the bracket through a coupling shaft; A belt is also provided, and the two ends of the belt are respectively connected to the output shaft of the motor and the coupling shaft. The motor drives the coupling shaft and the cutting knife to rotate through the belt.

3. The film roll support tube cutting device according to claim 2, characterized in that: The coupling shaft is arranged parallel to the supporting roller, the middle part of the coupling shaft is rotatably connected to the right side of the top of the bracket, the front end of the coupling shaft is arranged at the front end of the bracket, and the bottom plane of the cutting knife is arranged below the bottom surface of the bracket; A first belt pulley is arranged on the output shaft of the motor, a second belt pulley is arranged at the rear end of the coupling shaft, and the belt is wound around the first belt pulley and the second belt pulley.

4. The film roll support tube cutting device according to claim 1, characterized in that: The bottom of the pushing cylinder is rotatably connected to the frame, and the output shaft at the top of the pushing cylinder is rotatably connected to the bottom of the left end of the bracket.

5. The film roll support tube cutting device according to claim 1, characterized in that: The material pressing mechanism includes a material pressing cylinder, a U-shaped frame and a pressing wheel. The material pressing cylinder is installed on the frame above the bracket. The left end of the U-shaped frame is provided with a U-shaped opening, and the right end of the bracket is arranged in the U-shaped opening; The pressing wheel is rotatably installed on the side wall below the U-shaped frame. The output shaft at the bottom of the material pressing cylinder is connected to the top of the bracket. The material pressing cylinder is configured to drive the U-shaped frame and the pressing wheel to move up and down, so that the pressing wheel is arranged close to or far from the material feeding space.

6. The film roll support tube cutting device according to claim 5, characterized in that: There are two pressing wheels, and the two pressing wheels are arranged at intervals left and right. A material pressing distance is formed between the two pressing wheels. The material pressing distance is arranged directly opposite to the material feeding space, and the pressing wheels are arranged at the rear side of the cutting knife.

7. The film roll support tube cutting device according to claim 1, wherein: The axis of the pressing wheel is arranged parallel to the supporting roller.

8. The film roll support tube cutting device according to claim 1, characterized in that: The driving mechanism includes a driving motor and a chain. The driving motor is installed below the supporting roller. A first sprocket is arranged at the end of one of the supporting rollers, a second sprocket is arranged on the output shaft of the driving motor, and the chain is wound around the first sprocket and the second sprocket.

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