Asynchronous jump-cutting feeding positioning mechanism

Abstract

The utility model relates to the technical field of positioning mechanisms, in particular to an asynchronous jump-cutting feeding positioning mechanism, which is characterized in that a positioning part is arranged at one end between two racks and comprises two adjusting groups, two fixing groups and a guide group, raw materials are spread and flattened by the guide group, the adjusting groups are fixedly arranged at two ends of the guide group, and the positions of the guide group are adjusted by the adjusting groups; the fixing sets are arranged on the outer sides of the two racks and right face the adjusting set, when the fixing sets are located on the periphery of the adjusting set, the adjusting set is limited not to rotate, and when the fixing sets leave the periphery of the adjusting set, the adjusting set can freely rotate. After positioning, the first fixing block is pushed rightwards to enable the cone to be located in the groove, then the second fixing block is pushed towards the machine frame, the guide block is inserted into the guide groove, the first fixing block and the second fixing block wrap the adjusting set, the groove and the cone are matched with each other, rotation of the adjusting set is limited, and it is guaranteed that the positioning part is located at the fixed position. And the finished product quality is prevented from being influenced by cutting deviation of raw materials.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning mechanisms, in particular to an asynchronous jump-cut feeding positioning mechanism. Background Art

[0002] Asynchronous jump cutters are favored by jump cutters due to their superior raw material utilization, time-saving, and efficient performance compared to traditional die cutting. When jump cutting strips, the material is typically conveyed at a constant speed perpendicular to the cutting head. The cutting head is then raised and lowered at a constant rate to cut the strips into uniform lengths. With the advancement of production technology, adjustments to the cutting process during strip cutting, such as adjusting the cutting head position, can be made to omit intermediate cutting steps and improve production efficiency. Because asynchronous jump cutters need to cut two raw materials simultaneously, they place high demands on the positional relationship between the two raw materials.

[0003] The asynchronous jump cutting machines commonly used on the market cannot adjust the position of the feeding mechanism, resulting in deviations in the cutting of raw materials and affecting the quality of the finished product. Utility Model Content

[0004] The main purpose of the utility model is to provide an asynchronous jump cutting feeding positioning mechanism to solve the problem proposed in the related art that the cutting of raw materials may cause deviations, thereby affecting the quality of the finished product.

[0005] To achieve the above-mentioned object, according to one aspect of the present invention, an asynchronous jump cutting feeding and positioning mechanism is provided, comprising: an asynchronous jump cutting machine, the asynchronous jump cutting machine comprising two frames, a discharge group and a jump cutting group, the discharge group and the jump cutting group being arranged between the two frames, the discharge group discharges and rewinds the raw material, and the jump cutting group performs jump cutting on the raw material;

[0006] The positioning part is arranged at one end in the middle of the two frames. The positioning part includes two adjustment groups, two fixed groups and a guide group. The guide group spreads out the raw materials and flattens them. The adjustment group is fixed at both ends of the guide group. The adjustment group adjusts the position of the guide group. The fixed groups are all arranged on the outside of the two frames and are opposite to the adjustment group. When the fixed group is located outside the adjustment group, the adjustment group is restricted from rotating. When the fixed group leaves the outside of the adjustment group, the adjustment group can rotate freely.

[0007] Furthermore, the guide group includes a positioning roller, a positioning shaft, two guide wires and two limit plates. Both ends of the positioning shaft are threadedly connected to the frame. When the positioning shaft rotates, the length of one end entering the frame is lengthened, and the length of the other end entering the frame is shortened.

[0008] Further, the positioning roller is arranged on the outer circle of the positioning shaft and can rotate along the positioning shaft. When the positioning shaft moves left and right, it can drive the positioning roller to move synchronously. The guiding wires are fixedly arranged at both ends of the outer surface of the positioning roller and are distributed spirally outwards.

[0009] Further, the limiting discs are respectively located at both ends of the positioning roller. The limiting discs include disc bodies and a number of convex grains. The disc bodies are frustum-shaped, and the convex grains are all fixed on the side surfaces of the disc bodies in a spiral shape. The disc bodies are fixedly arranged at both ends of the positioning roller.

[0010] Further, the adjusting group includes an adjusting disc, a number of cones and a grip block. The grip block is fixedly arranged on the front surface of the adjusting disc. The cones are all fixedly arranged on the outer circle of the adjusting disc, and their tips face outwards. The adjusting disc is fixedly arranged at both ends of the positioning shaft.

[0011] Further, the fixing group includes a limiting component and a module component. The limiting component restricts the moving direction of the fixing group, and the module component restricts the rotation of the adjusting group.

[0012] Further, the module component includes a first fixing block, a second fixing block and two convex blocks. One of the convex blocks is fixedly arranged on the side of the front surface of the first fixing block, and the other convex block is fixedly arranged in the middle of the side surface of the second fixing block.

[0013] Further, the limiting component includes two guiding grooves, two guiding blocks, a number of grooves and a guiding column. The grooves are distributed on the inner sides of the first fixing block and the second fixing block. The guiding grooves are respectively located at the upper end and the lower end of the first fixing block. The guiding blocks are respectively located at the upper end and the lower end of the second fixing block. The guiding blocks can slide along the guiding grooves. One end of the guiding column is fixedly arranged on the back surface of the second fixing block, and the guiding column can slide into or out of one side of the machine frame.

[0014] Further, the feeding group includes an asynchronous feeding roller, a receiving roller, a guiding roller and a feeding and discharging roller. The asynchronous feeding roller, the receiving roller, the guiding roller and the feeding and discharging roller are all arranged between two machine frames and are rotatably connected to the machine frames. The asynchronous feeding roller is located at the end of the machine frame. The guiding roller is located below the positioning part. The feeding and discharging roller is located at the lower right of the guiding roller. The receiving roller is located at the other end of the machine frame. Power sources are arranged at one ends of the asynchronous feeding roller, the receiving roller, the guiding roller and the feeding and discharging roller respectively. The power sources are all fixedly arranged inside the machine frame and drive the asynchronous feeding roller, the receiving roller, the guiding roller and the feeding and discharging roller to rotate respectively.

[0015] Further, the jump cutting group is located between the receiving roller and the feeding and discharging roller. The jump cutting group includes a cutting knife, a scraping knife and a die base. The cutting knife and the scraping knife are both fixedly arranged between two machine frames, and the cutting knife is located above the scraping knife. The die base is fixedly arranged on the upper surface of the bottom of the asynchronous jump cutting machine, and the die base is located on the right side of the cutting knife.

[0016] Compared with the prior art, the utility model has the following beneficial effects: Pull the second fixing block on the front side of the frame outwards, the guide block slides along the guide groove, and the vertebral body slides along the groove until the guide block disengages from the guide groove. The second fixing block loses the restriction on the first fixing block and the adjustment group. Push the first fixing block to the left so that the groove of the first fixing block disengages from the vertebral body, and the first fixing block also loses the restriction on the adjustment group. Similarly, pull the fixing group on the rear side of the frame to make it lose the restriction on the adjustment group. Pinch the grip block and rotate it. The grip block drives the positioning shaft to rotate through the adjustment disc, and the length of both ends of the positioning shaft extending into the frame is adjusted, so that the positioning roller is located directly in front of the cutting knife and the scraping knife, ensuring that the raw material and the feeding are on the same straight line and are smoothly conveyed between the cutting knife and the scraping knife for cutting. After positioning, push the first fixing block to the right so that the vertebral body is located in the groove, and then push the second fixing block towards the frame. The guide blocks are respectively inserted into the guide grooves. The first fixing block and the second fixing block wrap the adjustment group therein. The groove and the vertebral body cooperate with each other to restrict the rotation of the adjustment group, ensure that the positioning part is in a fixed position, and prevent the cutting of the raw material from deviating and affecting the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall schematic diagram of the utility model;

[0018] Figure 2 is the structural schematic diagram of the utility model;

[0019] Figure 3 is the structural schematic diagram of the positioning part of the utility model;

[0020] Figure 4 is the structural schematic diagram of the limit disc of the utility model;

[0021] Figure 5 is the structural schematic diagram of the adjustment group of the utility model;

[0022] Figure 6 is the structural schematic diagram of the fixing group of the utility model;

[0023] Figure 7 is the feeding direction diagram of the utility model.

[0024] Illustration:

[0025] 1. Asynchronous jump cutter; 11. Frame; 12. Asynchronous feeding roller; 13. Receiving roller; 14. Guide roller; 15. Feeding and feeding roller; 16. Cutting knife; 17. Scraping knife; 18. Die holder;

[0026] 2. Positioning part; 21. Positioning roller; 22. Positioning shaft; 23. Guide wire; 24. Limit disk; 25. Adjusting group; 26. Fixing group; 241. Disk body; 242. Convex granule; 251. Adjusting disk; 252. Cone; 253. Holding block; 261. First fixing block; 262. Second fixing block; 263. Convex block; 264. Guide groove; 265. Guide block; 266. Groove; 267. Guide post. Detailed implementation manner

[0027] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manner, structure, features and their effects of the present utility model as follows.

[0028] Please refer to Figures 1 to 7 , this embodiment provides an asynchronous jump-cut feeding and positioning mechanism, including: an asynchronous jump-cut machine 1, the asynchronous jump-cut machine 1 includes two machine frames 11, a feeding group and a jump-cut group, the feeding group and the jump-cut group are both arranged between the two machine frames 11, the feeding group discharges and winds up the raw material, and the jump-cut group performs jump-cutting on the raw material;

[0029] A positioning part 2, the positioning part 2 is arranged at one end in the middle of the two machine frames 11, the positioning part 2 includes two adjusting groups 25, two fixing groups 26 and a guiding group, the guiding group spreads out and flattens the raw material, the adjusting groups 25 are fixedly arranged at both ends of the guiding group, the adjusting groups 25 adjust the position of the guiding group, the fixing groups 26 are both arranged outside the two machine frames 11 and are opposite to the adjusting groups 25, when the fixing groups 26 are located outside the adjusting groups 25, the rotation of the adjusting groups 25 is restricted, and when the fixing groups 26 leave the outside of the adjusting groups 25, the adjusting groups 25 can rotate freely.

[0030] The guiding group includes a positioning roller 21, a positioning shaft 22, two guide wires 23 and two limit disks 24, both ends of the positioning shaft 22 are threadedly connected to the machine frame 11, when the positioning shaft 22 rotates, the length of one end entering the machine frame 11 increases, and the length of the other end entering the machine frame 11 decreases.

[0031] The positioning roller 21 is arranged on the outer circle of the positioning shaft 22 and can rotate along the positioning shaft 22. When the positioning shaft 22 moves left and right, it can drive the positioning roller 21 to move synchronously, adjust the position of the positioning roller 21 between the two machine frames 11, limit the position of the raw material, and make it move forward flatly facing the cutting knife 16. The guide wires 23 are both fixedly arranged at both ends of the outer surface of the positioning roller 21 and are distributed spirally outwards, spreading out and flattening the raw material on its surface.

[0032] The limiting disks 24 are respectively located at both ends of the positioning roller 21. The limiting disks 24 include disk bodies 241 and a number of convex grains 242. The disk bodies 241 are frustum-shaped. The convex grains 242 are all spirally fixed on the side surfaces of the disk bodies 241. The disk bodies 241 are all fixed at both ends of the positioning roller 21. The raw material moves left and right under the guiding action of the guiding wire 23 and is blocked by the frustum-shaped disk bodies 241 and the convex grains 242 when it reaches the limiting disks 24, preventing the raw material from separating from the positioning roller 21.

[0033] The adjusting group 25 includes an adjusting disk 251, a number of cones 252 and a grip block 253. The grip block 253 is fixed on the front surface of the adjusting disk 251. The cones 252 are all fixed on the outer ring of the adjusting disk 251 with their tips facing outward. When the cones 252 are located in the grooves 266, the adjusting group 25 cannot rotate. The adjusting disk 251 is fixed at both ends of the positioning shaft 22.

[0034] The fixing group 26 includes a limiting component and a module component. The limiting component restricts the moving direction of the fixing group 26, and the module component restricts the rotation of the adjusting group 25.

[0035] The module component includes a first fixing block 261, a second fixing block 262 and two convex blocks 263. One of the convex blocks 263 is fixed on the side edge of the front surface of the first fixing block 261, and the other convex block 263 is fixed in the middle of the side surface of the second fixing block 262. Pushing the convex block 263 can drive the first fixing block 261 or the second fixing block 262 to move.

[0036] The limiting component includes two guiding grooves 264, two guiding blocks 265, a number of grooves 266 and a guiding column 267. The grooves 266 are distributed on the inner sides of the first fixing block 261 and the second fixing block 262. The guiding grooves 264 are respectively located at the upper end and the lower end of the first fixing block 261. The guiding blocks 265 are respectively located at the upper end and the lower end of the second fixing block 262. The guiding blocks 265 can slide along the guiding grooves 264. When the guiding blocks 265 are located in the guiding grooves 264, the first fixing block 261 and the second fixing block 262 are combined to restrict the adjusting group 25 from rotating. One end of the guiding column 267 is fixed on the back surface of the second fixing block 262, and the guiding column 267 can slide into or out of one side of the frame 11.

[0037] The feeding group includes an asynchronous feeding roller 12, a material collecting roller 13, a guiding roller 14 and a feeding and discharging roller 15. The asynchronous feeding roller 12, the material collecting roller 13, the guiding roller 14 and the feeding and discharging roller 15 are all arranged between two machine frames 11 and are rotatably connected to the machine frame 11. The asynchronous feeding roller 12 is located at the end of the machine frame 11, the guiding roller 14 is located below the positioning part 2, the feeding and discharging roller 15 is located at the lower right of the guiding roller 14, and the material collecting roller 13 is located at the other end of the machine frame 11. One end of the asynchronous feeding roller 12, the material collecting roller 13, the guiding roller 14 and the feeding and discharging roller 15 is provided with a power source. In this embodiment, a motor is preferably used as the power source, which is simple and easy to operate. The power sources are all fixedly arranged in the machine frame 11 and respectively drive the asynchronous feeding roller 12, the material collecting roller 13, the guiding roller 14 and the feeding and discharging roller 15 to rotate.

[0038] The jump cutting group is located between the material collecting roller 13 and the feeding and discharging roller 15 and performs jump cutting on the raw material. The jump cutting group includes a cutting knife 16, a scraping knife 17 and a die base 18. The cutting knife 16 and the scraping knife 17 are both fixedly arranged between two machine frames 11, and the cutting knife 16 is located above the scraping knife 17. The die base 18 is fixedly arranged on the upper surface of the bottom of the asynchronous jump cutting machine 1, and the die base 18 is located on the right side of the cutting knife 16.

[0039] Turn on all the motors inside the frame 11, and the asynchronous feeding roller 12 starts to rotate, conveying raw materials between the winding roller 13 and the guiding roller 14. The guiding wire 23 rotates following the positioning roller 21, pushing the passing raw materials to both sides of the positioning roller 21, enabling the raw materials to move forward smoothly. After being guided and positioned by the winding roller 13 and the guiding roller 14, the raw materials enter between the cutting knife 16 and the scraping knife 17. Meanwhile, the feeding and discharging roller 15 also starts to rotate, conveying the feeding to between the cutting knife 16 and the scraping knife 17. The raw materials and the feeding are combined into one between the cutting knife 16 and the scraping knife 17. The cutting knife 16 moves up and down to cut the raw materials into uniform small pieces, which are driven by the feeding and continue to move forward and pass through the die holder 18. The cut raw materials are separated, while the feeding is wound up. As the skip cutting progresses, factors such as mechanical vibration will cause relative displacement between the raw materials and the feeding, affecting the cutting accuracy of the raw materials. Then, it is necessary to adjust the position of the positioning part 2 to reposition the raw materials. Pull the second fixing block 262 on the front side of the frame 11 outwards. The guiding block 265 slides along the guiding groove 264, and the cone 252 slides along the groove 266 until the guiding block 265 disengages from the guiding groove 264. The second fixing block 262 loses the restriction on the first fixing block 261 and the adjusting group 25. Push the first fixing block 261 to the left, so that the groove 266 of the first fixing block 261 disengages from the cone 252, and the first fixing block 261 also loses the restriction on the adjusting group 25. Similarly, pull the fixing group 26 on the rear side of the frame 11 to make it lose the restriction on the adjusting group 25. Pinch the holding block 253 and rotate it. The holding block 253 drives the positioning shaft 22 to rotate through the adjusting disc 251, adjusting the length of both ends of the positioning shaft 22 extending into the frame 11, so that the positioning roller 21 is directly in front of the cutting knife 16 and the scraping knife 17, ensuring that the raw materials and the feeding are on the same straight line and are smoothly conveyed between the cutting knife 16 and the scraping knife 17 for cutting. After positioning, push the first fixing block 261 to the right to make the cone 252 located in the groove 266, and then push the second fixing block 262 towards the frame 11. The guiding blocks 265 are respectively inserted into the guiding grooves 264. The first fixing block 261 and the second fixing block 262 wrap the adjusting group 25 therein. The groove 266 and the cone 252 cooperate with each other to restrict the rotation of the adjusting group 25, ensuring that the positioning part 2 is located at a fixed position.

[0040] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications into equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An asynchronous jump-cut feeding and positioning mechanism, characterized in that, Including: An asynchronous jump cutting machine (1), the asynchronous jump cutting machine (1) includes two machine frames (11), a feeding group and a jump cutting group. The feeding group and the jump cutting group are both arranged between the two machine frames (11). The feeding group discharges and rewinds the raw material, and the jump cutting group performs jump cutting on the raw material. A positioning part (2), the positioning part (2) is arranged at one end in the middle of the two machine frames (11). The positioning part (2) includes two adjusting groups (25), two fixing groups (26) and a guiding group. The guiding group spreads and flattens the raw material. The adjusting groups (25) are fixedly arranged at both ends of the guiding group. The adjusting groups (25) adjust the position of the guiding group. The fixing groups (26) are both arranged outside the two machine frames (11) and are opposite to the adjusting groups (25). When the fixing groups (26) are located outside the adjusting groups (25), the adjusting groups (25) are restricted from rotating. When the fixing groups (26) leave the outside of the adjusting groups (25), the adjusting groups (25) can rotate freely.

2. The asynchronous jump-cut feeding positioning mechanism according to claim 1, wherein The guiding group includes a positioning roller (21), a positioning shaft (22), two guiding wires (23) and two limiting discs (24). Both ends of the positioning shaft (22) are threadedly connected to the machine frame (11). When the positioning shaft (22) rotates, the length of one end entering the machine frame (11) increases, and the length of the other end entering the machine frame (11) decreases.

3. The asynchronous jump-cut feeding positioning mechanism according to claim 2, characterized in that, The positioning roller (21) is arranged on the outer circle of the positioning shaft (22) and can rotate along the positioning shaft (22). When the positioning shaft (22) moves left and right, it can drive the positioning roller (21) to move synchronously. The guiding wires (23) are fixedly arranged at both ends of the outer surface of the positioning roller (21) and are distributed spirally outwards.

4. The asynchronous jump-cut feeding and positioning mechanism according to claim 3, characterized in that, The limiting discs (24) are respectively located at both ends of the positioning roller (21). The limiting discs (24) include a disc body (241) and several convex grains (242). The disc body (241) is frustum-shaped. The convex grains (242) are all fixed on the side surface of the disc body (241) in a spiral shape. The disc bodies (241) are all fixed at both ends of the positioning roller (21).

5. The asynchronous jump-cut feeding positioning mechanism according to claim 4, wherein, The adjusting group (25) includes an adjusting disc (251), several conical bodies (252) and a grip block (253). The grip block (253) is fixedly arranged on the front surface of the adjusting disc (251). The conical bodies (252) are all fixed on the outer circle of the adjusting disc (251) with the tips facing outwards. The adjusting discs (251) are fixed at both ends of the positioning shaft (22).

6. The asynchronous jump-cut feeding and positioning mechanism according to claim 1, characterized in that, The fixing group (26) includes a limiting component and a module component. The limiting component restricts the moving direction of the fixing group (26), and the module component restricts the rotation of the adjusting group (25).

7. The asynchronous jump-cut feeding and positioning mechanism according to claim 6, wherein, The module component includes a first fixing block (261), a second fixing block (262) and two convex blocks (263). One of the convex blocks (263) is fixed on the side of the front surface of the first fixing block (261), and the other convex block (263) is fixed in the middle of the side surface of the second fixing block (262).

8. The asynchronous jump-cut feeding and positioning mechanism according to claim 7, wherein, The limiting component includes two guiding grooves (264), two guiding blocks (265), a number of grooves (266) and a guiding column (267). The grooves (266) are distributed on the inner sides of the first fixed block (261) and the second fixed block (262). The guiding grooves (264) are respectively located at the upper and lower ends of the first fixed block (261). The guiding blocks (265) are respectively located at the upper and lower ends of the second fixed block (262). The guiding blocks (265) can slide along the guiding grooves (264). One end of the guiding column (267) is fixedly arranged on the back surface of the second fixed block (262), and the guiding column (267) can slide into or out of one side of the frame (11).

9. The asynchronous jump-cut feeding positioning mechanism according to claim 1, wherein The feeding group includes an asynchronous feeding roller (12), a winding roller (13), a guiding roller (14) and a feeding and discharging roller (15). The asynchronous feeding roller (12), the winding roller (13), the guiding roller (14) and the feeding and discharging roller (15) are all arranged between two frames (11) and are rotatably connected to the frame (11). The asynchronous feeding roller (12) is located at the end of the frame (11). The guiding roller (14) is located below the positioning part (2). The feeding and discharging roller (15) is located at the lower right of the guiding roller (14). The winding roller (13) is located at the other end of the frame (11). One end of each of the asynchronous feeding roller (12), the winding roller (13), the guiding roller (14) and the feeding and discharging roller (15) is provided with a power source, and the power sources are all fixedly arranged in the frame (11) to drive the asynchronous feeding roller (12), the winding roller (13), the guiding roller (14) and the feeding and discharging roller (15) to rotate respectively.

10. The asynchronous jump-cut feeding and positioning mechanism according to claim 9, wherein, The skip cutting group is located between the winding roller (13) and the feeding and discharging roller (15). The skip cutting group includes a cutting knife (16), a scraping knife (17) and a die base (18). The cutting knife (16) and the scraping knife (17) are both fixedly arranged between two frames (11), and the cutting knife (16) is located above the scraping knife (17). The die base (18) is fixedly arranged on the upper surface of the bottom of the asynchronous skip cutting machine (1), and the die base (18) is located on the right side of the cutting knife (16).

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