Constant force feeding blanking machine

Abstract

The utility model discloses a constant force feeding's blanking machine, including the feeding device for feeding, and the blanking device of being located one side of feeding device, one side of blanking device is equipped with the first collecting device for collecting the product after blanking and the second collecting device for collecting the surplus material after blanking, and the material accumulation device for storing material and keeping material tension is equipped between the feeding device and blanking device. Through setting material accumulation device between the feeding device and blanking device, it is accumulated to facilitate the blanking of blanking device while keeping material tension, and the feeding progress of feeding device is maintained, and the stable operation of overall blanking machine is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of punching machine technology, and in particular to a punching machine with constant force feeding. Background Technology

[0002] The die-cutting machine is the core equipment for paper roll processing. It consists of a stamping device, precision mold, feeding mechanism and intelligent control system. It is widely used in the production of food packaging such as yogurt caps and beverage caps. It achieves cap forming through precise die-cutting of paper roll material by mold.

[0003] However, the existing blanking machines have insufficient tension adjustment precision in the material accumulation device, the roller spacing control is easily affected by mechanical errors, and the coordination between the feeding roller group and the blanking device is poor, which can easily lead to poor material conveying or difficulty in collecting excess material, thus restricting the efficient and stable operation of the equipment. Therefore, a blanking machine with constant force feeding is needed. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a punching machine with constant force feeding.

[0005] This utility model is achieved by the following technical solution: A constant force feeding punching machine includes a feeding device for feeding materials and a punching device disposed on one side of the feeding device. The punching device is provided with a first collecting device for collecting punched products and a second collecting device for collecting punched residue on one side. A material accumulating device for storing materials and maintaining material tension is provided between the feeding device and the punching device.

[0006] By setting up a material accumulation device between the feeding device and the punching device, material can be accumulated while maintaining material tension to facilitate punching by the punching device, and the feeding progress of the feeding device can be maintained to ensure the stable operation of the overall punching machine.

[0007] As described above, the constant force feeding punching machine includes a material accumulation device comprising a material accumulation mounting mechanism, a servo drive mechanism disposed within the material accumulation mounting mechanism, and a constant tension roller group driven by the servo drive mechanism to adjust the material tension.

[0008] As described above, in the constant force feeding punching machine, the material accumulation mounting mechanism includes two parallel baffles. Each side between the two baffles is provided with a first guide post for supporting and mounting the constant tension roller group and a second guide post spaced parallel to the first guide post.

[0009] As described above, the constant force feeding punching machine includes two constant force rollers respectively disposed on two pairs of first guide posts and second guide posts, and mounting components for mounting the constant force rollers.

[0010] In the constant force feeding punching machine described above, one of the constant force roller mounting parts is fixedly connected to the first guide post, and the other constant force roller mounting part is movably connected to the second guide post.

[0011] As described above, in the constant force feeding punching machine, the servo drive mechanism includes two pairs of spaced-apart pulleys, a transmission belt that cooperates with the pulleys, and a servo drive component for driving the pulleys.

[0012] As described above, in the constant force feeding punching machine, one of the constant force rollers has a biting member on one side of its mounting component that cooperates with the transmission belt. The constant force roller on the mounting component side with the biting member can move under the drive of the servo drive mechanism to adjust the distance between the two constant force rollers.

[0013] In the constant force feeding punching machine described above, the servo drive is a servo motor with built-in soft limit that can precisely control speed, position and torque.

[0014] As described above, the constant force feeding punching machine includes a punching fixed plate and a punching movable plate that cooperates with the punching fixed plate to complete the punching. The punching movable plate is provided with multiple movable guide posts, and the punching fixed plate is provided with multiple mating holes corresponding to the movable guide posts. The punching device also includes a punching drive mechanism for driving the punching movable plate to move along the direction of the movable guide posts and cooperate with the punching fixed plate for punching.

[0015] As described above, in the constant force feeding punching machine, the punching device is provided with a first feeding roller group for conveying material and a third drive mechanism for driving the first feeding roller group on the side near the second collecting device. On the side of the punching device away from the second collecting device, a second feeding roller group for conveying material and a fourth drive mechanism for driving the second feeding roller group are provided. The punching device is located between the first feeding roller group and the second feeding roller group, so that the material is conveyed to the punching device by the second feeding roller group under the drive of the second collecting device to complete the punching, and then guided by the first feeding roller group and collected by the second collecting device.

[0016] Compared with the prior art, the constant force feeding punching machine proposed in this utility model has the following beneficial effects: 1. This utility model, by setting a material accumulation device between the feeding device and the punching device, realizes the accumulation of material while maintaining material tension to facilitate punching by the punching device, and at the same time maintains the feeding progress of the feeding device to ensure the stable operation of the overall punching machine; 2. The servo drive unit drives the pulley to adjust the position of the constant force roller on one side of the engagement member, thereby controlling the distance between the two constant force rollers. This ensures that the material tension is maintained while accumulating material, facilitating subsequent punching of the material. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a structural schematic diagram of the present invention from one perspective; Figure 2 for Figure 1 A magnified view of region A; Figure 3 for Figure 1 A partial breakdown diagram from a specific perspective; Figure 4 This is a structural schematic diagram of the present invention from another perspective; Figure 5 for Figure 4 A partial breakdown diagram from a specific perspective; Figure 6 This is a structural schematic diagram from another perspective of the present invention; Figure 7 This is a schematic diagram of the feeding device and pre-processing device of this utility model; Figure 8 for Figure 7 A structural diagram from another perspective; Figure 9 for Figure 7 Partially exploded diagram; Figure 10 for Figure 9 Enlarged schematic diagram of region B; Figure 11 for Figure 9 A schematic diagram from another perspective; Figure 12 for Figure 11 Enlarged schematic diagram of region C; Figure 13 This is a schematic diagram of the straightening device of this utility model; Figure 14 for Figure 13 A schematic diagram from another perspective; Figure 15 This is a schematic diagram of the material accumulation device of this utility model; Figure 16 for Figure 15 Enlarged schematic diagram of region D; Figure 17This is a partial structural diagram of the first collecting device and the punching device of this utility model; Figure 18 for Figure 17 A schematic diagram from another perspective; Figure 19 for Figure 17 This is another schematic diagram from a different perspective.

[0019] The corresponding reference numerals in the attached figures are as follows: 1. Feeding device; 2. Blanking device; 21. Blanking fixing plate; 211. Mating hole; 212. Blanking hole; 2121. Vacuum suction hole; 213. Vacuum suction tube; 214. Measuring mechanism; 22. Blanking movable plate; 221. Movable guide post; 222. Blanking blade; 23. Blanking drive mechanism; 31. First collecting device; 311. Receiving mechanism; 3111. Receiving column; 3112. Limiting plate; 312. Material stabilizing mechanism; 32. Second collecting device; 321. Receiving roller; 322 4. Collection drive mechanism; 4. Pre-processing device; 41. First processing mechanism; 411. First impression roller group; 4111. First impression roller wheel; 4112. First mating roller wheel; 4113. Adjusting handwheel; 412. First drive mechanism; 413. First mounting groove; 42. Second processing mechanism; 421. Second impression roller group; 4211. Second impression roller wheel; 4212. Second mating roller wheel; 422. Second drive mechanism; 423. Second mounting groove; 424. First drive component; 43. Adjusting handwheel; 431. Detection roller group; 4311. First roller; 4312. Detection component; 432. Positioning roller group; 4321. First positioning roller; 4322. First adjusting roller; 433. Third drive mechanism; 434. Third mounting groove; 435. Second drive component; 51. First feeding roller group; 52. Fourth drive mechanism; 61. Second feeding roller group; 62. Fifth drive mechanism; 7. Material accumulation device; 71. Material accumulation mounting mechanism; 711. Baffle; 712. First guide post; 713. 72. Second guide post; 72. Servo drive mechanism; 721. Pulley; 722. Transmission belt; 723. Servo drive component; 73. Constant tension roller group; 731. Constant force roller; 732. Constant force mounting component; 733. Engaging component; 8. Straightening device; 81. Straightening roller; 811. Roller body; 812. Straightening mounting component; 82. Straightening drive component; 821. Gear motor; 83. Floating straightening component; 831. Floating roller; 832. Moving component; 8321. Mounting part; 8322. Mounting arm. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Specific embodiments, combined with Figures 1 to 19 The technical solution of this utility model is further illustrated below. Overall, this constant force feeding punching machine includes a feeding device 1 for feeding materials, and a punching device 2 disposed on one side of the feeding device 1. The punching device 2 has a first collecting device 31 for collecting the punched products and a second collecting device 32 for collecting the remaining material after punching on one side. During operation, the material is stored in the feeding device 1, providing material for the punching of the punching device 2. After the punching device 2 completes the punching, the punched products are stored in the first collecting device 31, and the remaining material (i.e., the portion of the material remaining after punching) is stored in the second collecting device 32.

[0022] Based on the overall design concept described above, a pre-processing device 4 for pre-processing materials is provided between the feeding device 1 and the blanking device 2. Optionally, the pre-processing device 4 includes a first processing mechanism 41 located near the feeding device 1 and a second processing mechanism 42 located near the blanking device 2. An adjustment mechanism 43 for adjusting materials is provided between the first processing mechanism 41 and the second processing mechanism 42. The pre-processing device 4 can pre-process the blanked products and facilitate material adjustment for subsequent material processing. The first processing mechanism 41 and the second processing mechanism 42 can provide various processing directions. Optionally, the first processing mechanism 41 processes a portion of the material, and the second processing mechanism 42 processes another portion of the material, so that multiple products can be obtained when the material passes through the blanking device 2, improving the practical performance of the equipment.

[0023] Specifically, the first processing mechanism 41 includes a first impression roller assembly 411 and a first drive mechanism 412 for driving the first impression roller assembly 411. The first impression roller assembly 411 includes a first impression roller 4111 driven by the first drive mechanism 412 and a first mating roller 4112 that cooperates with the first impression roller 4111 to imprint on the material. The first impression roller assembly 411 is capable of performing a type of embossing on the material.

[0024] The first impression roller assembly 411 further includes an adjusting handwheel 4113 for adjusting the impression depth. The adjusting handwheel 4113 can adjust the distance between the first impression roller 4111 and the first mating roller 4112 by rotating it. The adjusting handwheel 4113 can adjust the impression depth to ensure the stability of the impression and the type of impression.

[0025] Optionally, the first impression roller 4111 is driven to rotate by the first driving mechanism 412. The first processing mechanism 41 is provided with a first mounting groove 413 for movably mounting the first mating roller 4112. The adjusting handwheel 4113 can adjust the first mating roller 4112 to move up and down within the first mounting groove 413, thereby adjusting the distance between the first impression roller 4111 and the first mating roller 4112. The adjusting handwheel 4113 can drive the first mating roller 4112 to move up and down within the first mounting groove 413, thereby adjusting the distance between the first impression roller 4111 and the first mating roller 4112, that is, adjusting the depth of the impression.

[0026] Specifically, the adjustment mechanism 43 includes a detection roller group 431 for detecting the state of the material after being processed by the first processing mechanism 41, a positioning roller group 432 for adjusting the material, and a third drive mechanism 433 for driving the positioning roller group 432. The detection roller group 431 includes a first roller 4311 for transferring material, disposed between the detection roller group 431 and the first processing mechanism 41, and a detection element 4312 for detecting the degree of material offset, disposed on one side of the first roller 4311. The first roller 4311 first receives the material processed by the first processing mechanism 41. The detection element 4312 detects the degree of material offset and transmits the signal to the positioning roller group 432. The positioning roller group 432 positions and corrects the material, ensuring that it can be stably processed by the second impression roller group 421 and subsequently punched by the punching device 2.

[0027] The positioning roller group 432 includes a first positioning roller 4321 driven by the third driving mechanism 433, and a first adjusting roller 4322 whose position can be adjusted according to the detection status of the detection element 4312. The first adjusting roller 4322 can adjust its position to ensure that the material is accurately processed when it enters the second processing mechanism 42.

[0028] Optionally, the adjustment mechanism 43 further includes a third mounting groove 434 for movably mounting the first adjusting roller 4322 and a second driving member 435 cooperating with the detection member 4312. The second driving member 435, upon receiving a signal from the detection member 4312, adjusts the first adjusting roller 4322 to move up and down within the third mounting groove 434, thereby adjusting the distance between the first positioning roller 4321 and the first adjusting roller 4322. The second driving member 435 can drive the first adjusting roller 4322 to move up and down within the third mounting groove 434 according to the signal fed back by the detection member 4312, thereby adjusting the distance between the first positioning roller 4321 and the first adjusting roller 4322, thus adjusting the position of the material and facilitating the processing of the material by the second processing mechanism 42.

[0029] Specifically, the second processing mechanism 42 includes a second impression roller group 421 and a second drive mechanism 422 for driving the second impression roller group 421. The second impression roller group 421 includes a second impression roller 4211 driven by the second drive mechanism 422 and a second mating roller 4212 that cooperates with the second impression roller 4211 to imprint on the material. The second impression roller group 421 can imprint another type of embossing on the material. Optionally, the embossing of the first impression roller group 411 and the second impression roller group 421 is different. By adjusting the position of the embossing and the relationship between their corresponding drive mechanisms, different embossings can be imprinted on the material, improving the practical performance of the die-cutting machine.

[0030] Optionally, the second processing mechanism 42 further includes a second mounting groove 423 for movably mounting the second mating roller 4212 and a first driving member 424 for driving the second mating roller 4212 to move up and down along the second mounting groove 423. The first driving member 424 can drive the second mating roller 4212 to move up and down along the second mounting groove 423 to adjust the distance between the second impression roller 4211 and the second mating roller 4212. The first driving member 424 can drive the second mating roller 4212 to move up and down within the second mounting groove 423, thereby adjusting the distance between the second impression roller 4211 and the second mating roller 4212, i.e., adjusting the depth of the impression. Optionally, the second processing mechanism 42 further includes a detection device disposed on one side of the second impression roller group 421 for detecting the material's position. The detection device is electrically connected to the first driving member 424 to cooperate with the first driving member 424 in adjusting the position of the second mating roller 4212.

[0031] Based on the above overall design concept, the blanking device 2 includes a blanking fixed plate 21 and a blanking movable plate 22 that cooperates with the blanking fixed plate 21 to complete the blanking. The blanking movable plate 22 is provided with multiple movable guide posts 221, and the blanking fixed plate 21 is provided with multiple mating holes 211 corresponding to the movable guide posts 221. The blanking device 2 also includes a blanking drive mechanism 23 for driving the blanking movable plate 22 to move along the direction of the movable guide posts 221 and cooperate with the blanking fixed plate 21 to complete the blanking. The blanking drive mechanism 23 can drive the blanking movable plate 22 to move along the direction of the movable guide posts 221 and cooperate with the blanking fixed plate 21 to complete the blanking.

[0032] Specifically, the die-cutting fixed plate 21 is provided with a plurality of die-cutting holes 212, and the die-cutting movable plate 22 is provided with a plurality of die-cutting blades 222 corresponding to the die-cutting holes 212. The first collecting device 31 includes a receiving mechanism 311 corresponding to the die-cutting holes 212, and a stabilizing mechanism 312 that stabilizes the product in the die-cutting holes 212 after die-cutting. When the material is transferred between the die-cutting fixed plate 21 and the die-cutting movable plate 22, the die-cutting blades 222 cooperate with the die-cutting holes 212 on the die-cutting fixed plate 21 under the action of the die-cutting movable plate 22, and die-cut the product. The die-cut product is retained in the die-cutting holes 212. During subsequent die-cutting operations, the product gradually accumulates and is collected by the receiving mechanism 311 of the first collecting device 31. In addition, the stabilizing mechanism 312 ensures that the die-cut product maintains its shape and avoids interfering with the action of the die-cutting movable plate 22 and the die-cutting blades 222 during subsequent die-cutting, thus affecting the quality of the product and the continuous die-cutting operation.

[0033] Preferably, the blanking fixed plate 21 has two rows of blanking holes 212, and the blanking movable plate 22 has a plurality of blanking blades 222 corresponding to the blanking holes 212. One row of blanking holes 212 and its corresponding blanking blades 222 is responsible for blanking out one type of product processed by the first processing mechanism 41, and the other row of blanking holes 212 and its corresponding blanking blades 222 is responsible for blanking out one type of product processed by the second processing mechanism 42, so as to realize the blanking of multiple products through one set of equipment.

[0034] Optionally, the receiving mechanism 311 includes multiple receiving columns 3111 for forming product channels and a limiting plate 3112 movably mounted on one of the receiving columns 3111, whose position can be adjusted as products accumulate. The limiting plate 3112 can move on the receiving column 3111, so that when more and more punched products are produced, the limiting plate 3112 keeps the products arranged in an orderly manner, facilitating subsequent orderly collection, metering, and packaging of the products.

[0035] The blanking fixing plate 21 is provided with a channel between the blanking hole 212 and the receiving mechanism 311, so that the blanked material can be buffered through the channel and then collected and packaged on the receiving column 3111 of the receiving mechanism.

[0036] Optionally, the material stabilizing mechanism 312 is a vacuum suction device capable of suctioning a vacuum. Multiple vacuum suction holes 2121 are provided on the inner circumference of the punching hole 212, and a flow channel is provided inside the punching fixing plate 21 for connecting the vacuum suction holes 2121 and the material stabilizing mechanism 312. By providing multiple vacuum suction holes 2121 on the inner circumference of the punching hole 212, the punched product is suctioned to maintain its shape, preventing interference with the movement of the punching movable plate 22 and the punching blade 222 during subsequent punching.

[0037] Around the punching device 2, the side of the punching device 2 closest to the second collecting device 32 is provided with a first feeding roller group 51 for conveying material and a fourth driving mechanism 52 for driving the first feeding roller group 51. The side of the punching device 2 away from the second collecting device 32 is provided with a second feeding roller group 61 for conveying material and a fifth driving mechanism 62 for driving the second feeding roller group 61. The punching device 2 is located between the first feeding roller group 51 and the second feeding roller group 61, so that the material is conveyed to the punching device 2 by the second feeding roller group 61 under the drive of the second collecting device 32 to complete the punching, and then guided by the first feeding roller group 51 and collected by the second collecting device 32.

[0038] Specifically, the second collecting device 32 includes a receiving roller 321 for receiving material and a collecting drive mechanism 322 located on one side of the receiving roller 321 for driving its operation. The fourth drive mechanism 52 and the fifth drive mechanism 62 cycle-start and stop to achieve a stop at the working position of the punching device 2 when the material is being moved, and to remove the punched residue from the working position of the punching device 2 after punching is completed. This brief stop facilitates the punching device 2 in completing the punching of the material, while ensuring that the punched residue is collected by the second collecting device 32.

[0039] In addition, the blanking drive mechanism 23 is a servo motor capable of cyclically starting and stopping to intermittently drive the blanking movable plate 22 to blank products. The blanking fixed plate 21 is equipped with a measuring mechanism 213 that leaves a mark on the products after a certain number of blanked products have been collected. The measuring mechanism 213 is electrically connected to the blanking drive mechanism 23. In short, the action of the measuring mechanism 213 is affected by the number of times the blanking drive mechanism 23 operates. After the blanking drive mechanism 23 operates a certain number of times, the measuring mechanism 213 receives a signal and operates, leaving a mark on the material to be blanked, facilitating subsequent measurement and collection.

[0040] Based on the overall design concept described above, a material accumulation device 7 is provided between the blanking device 2 and the pre-processing device 4 to store material and maintain material tension. The material accumulation device 7 can cooperate with the blanking device 2 to complete the blanking. Since the blanking device 2 pauses briefly during blanking, the material accumulation device 7 can accumulate material while maintaining material tension to facilitate the blanking of the blanking device 2, while maintaining the feeding progress of the feeding device 1 and ensuring the stable operation of the entire blanking machine.

[0041] Specifically, the material accumulation device 7 includes a material accumulation mounting mechanism 71, a servo drive mechanism 72 disposed within the material accumulation mounting mechanism 71, and a constant tension roller group 73 driven by the servo drive mechanism 72 to adjust the material tension. The constant tension roller group 73 can accumulate material and maintain the tension of that portion of the material, facilitating the punching device 2 to complete the punching.

[0042] The material accumulation installation mechanism 71 includes two parallel baffles 711. Each side of the two baffles 711 is provided with a first guide post 712 for supporting and installing the constant tension roller group 73 and a second guide post 713 that is spaced parallel to the first guide post 712. The servo drive mechanism 72 includes two pairs of spaced-apart pulleys 721, a transmission belt 722 that cooperates with the pulleys 721, and a servo drive component 723 for driving the pulleys 721. The servo drive mechanism 72 is fixed on the material accumulation mounting mechanism 71, and the first guide post 712 and the second guide post 713 provide convenience for the installation and tension adjustment of the constant tension roller group 73.

[0043] Specifically, the constant tension roller assembly 73 includes two constant force rollers 731 respectively disposed on two pairs of first guide posts 712 and second guide posts 713, and a constant force mounting member 732 for mounting the constant force rollers 731. One of the constant force rollers 731 is mounted on the first guide post 712, and the other constant force roller 731 is mounted on the second guide post 713, ensuring that the two constant force rollers 731 are on two horizontal planes and have a certain distance between them, which facilitates material accumulation and constant tension treatment of the material.

[0044] Optionally, the constant force mounting member 732 of one of the constant force rollers 731 is movably connected to the first guide post 712, and the constant force mounting member 732 of the other constant force roller 731 is fixedly connected to the second guide post 713. One side of the constant force mounting member 732 of one of the constant force rollers 731 is provided with an engaging member 74 that cooperates with the transmission belt 722. The constant force roller 731 on the side of the constant force mounting member 732 with the engaging member 74 can move under the drive of the servo drive mechanism 72 to adjust the distance between the two constant force rollers 731.

[0045] Specifically, the servo drive 723 is a servo motor with built-in soft limiters that can precisely control speed, position and torque.

[0046] Based on the overall design concept described above, a straightening device 8 for automatically straightening the paper roll is provided between the material accumulation device 7 and the pre-processing device 4. As the material at the feeding device 1 is collected by the second collecting device 32, the diameter of the material roll gradually decreases. The straightening device 8 can adjust according to the change in the material paper roll at the feeding device 1 to straighten the paper roll, thus providing a stable material input for the subsequent operation of the punching device 2.

[0047] Specifically, the straightening device 8 includes a straightening roller 81 and a straightening drive member 82 for driving the straightening roller 81. A floating straightening member 83, capable of rotating around the straightening roller 81, is provided on one side of the straightening roller 81. Material rotates around the straightening roller 81 and the floating straightening member 83. The straightening roller 81 remains stationary, its driving speed controlled by the straightening drive member 82. Simultaneously, the floating straightening member 83 can rotate around the axis of the straightening roller 81, adaptively adjusting its rotation angle to avoid the influence of material transferred to the punching device 2 during material consumption.

[0048] More specifically, the straightening roller 81 includes a roller body 811 and a straightening mounting member 812 connected to the straightening drive member 82 for mounting the roller body 811. The floating straightening member 83 includes two spaced-apart floating rollers 831 with lengths corresponding to the roller body 811, and a movable member 832 movably connected to the straightening mounting member 812. Material is conveyed to subsequent devices around the straightening roller 81 via the two floating rollers 831. The floating straightening member 83 can rotate around the straightening mounting member 812 with the axis of rotation of the roller body 811 as its rotation axis, thereby achieving adaptive adjustment of the rotation angle.

[0049] More specifically, the movable component 832 includes a mounting portion 8321 for mounting the two floating rollers 831 and a mounting arm 8322 connected to the mounting portion 8321 for movably connecting with the straightening mounting component 812.

[0050] Specifically, the straightening drive 82 is a servo drive motor capable of precisely controlling speed, position, and torque.

[0051] In addition, a geared motor 821 is provided on one side of the straightening drive component 82. The geared motor 821 can work with the straightening drive component 82 to provide stable torque and precise speed control, ensuring the material feeding process.

[0052] The working principle of this embodiment is as follows: This utility model proposes a constant force feeding punching machine. By setting a material accumulation device 7 between the feeding device 1 and the punching device 2, the material is accumulated while maintaining material tension to facilitate punching by the punching device 2. At the same time, the feeding progress of the feeding device 1 is maintained, ensuring the stable operation of the entire punching machine. Its specific working principle is as follows: Overall, the feeding device 1 is responsible for feeding the paper rolls of material. The pre-processing device 4 completes the diversified processing of the material. After processing, the material is straightened by the straightening device 8 to avoid the material being affected by the material being transmitted to the punching device 2 during the material consumption process. Then the material is conveyed to the accumulating device 7, which accumulates the material while maintaining the material tension to facilitate the punching of the punching device 2, and at the same time maintains the feeding progress of the feeding device 1. After the punching device 2 completes the punching of the material, the first collecting device 31 collects the punched products, and the second collecting device 32 collects the remaining material after punching.

[0053] The material accumulation device 7 includes a material accumulation mounting mechanism 71, a servo drive mechanism 72 located within the material accumulation mounting mechanism 71, and a constant tension roller group 73 driven by the servo drive mechanism 72 to adjust the material tension. The constant tension roller group 73 includes two constant force rollers 731 respectively located on two pairs of first guide posts 712 and second guide posts 713, and a constant force mounting member 732 for mounting the constant force rollers 731. One constant force roller 731 is mounted on the first guide post 712, and the other constant force roller 731 is mounted on the second guide post 713, ensuring that the two constant force rollers 731 are on two horizontal planes and have a certain distance between them. One side of the constant force mounting member 732 is provided with a biting member 74 that cooperates with the transmission belt 722. The constant force roller 731 on the side of the constant force mounting member 732 with the biting member 74 can move under the drive of the servo drive mechanism 72 to adjust the distance between the two constant force rollers 731, thereby accumulating material while ensuring the tension of the material, which is convenient for subsequent punching of the material.

Claims

1. A punching machine with constant force feeding, characterized in that, It includes a feeding device (1) for feeding materials, and a punching device (2) provided on one side of the feeding device (1). The punching device (2) is provided on one side with a first collecting device (31) for collecting punched products and a second collecting device (32) for collecting punched residue. A material accumulating device (7) for storing materials and maintaining material tension is provided between the feeding device (1) and the punching device (2).

2. The constant force feeding punching machine according to claim 1, characterized in that, The material accumulation device (7) includes a material accumulation mounting mechanism (71), a servo drive mechanism (72) disposed in the material accumulation mounting mechanism (71), and a constant tension roller group (73) driven by the servo drive mechanism (72) to adjust the material tension.

3. The constant force feeding punching machine according to claim 2, characterized in that, The material accumulation installation mechanism (71) includes two parallel baffles (711), and each side of the two baffles (711) is provided with a first guide post (712) for supporting and installing the constant tension roller group (73) and a second guide post (713) spaced parallel to the first guide post (712).

4. The constant force feeding punching machine according to claim 3, characterized in that, The constant tension roller assembly (73) includes two constant force rollers (731) respectively disposed on two pairs of first guide posts (712) and second guide posts (713), and a mounting component (732) for mounting the constant force rollers (731).

5. The constant force feeding punching machine according to claim 4, characterized in that, One of the constant force rollers (731) has a mounting part (732) movably connected to the first guide post (712), and the other constant force roller (731) has a mounting part (732) fixedly connected to the second guide post (713).

6. The constant force feeding punching machine according to claim 4, characterized in that, The servo drive mechanism (72) includes two pairs of spaced pulleys (721), a transmission belt (722) that cooperates with the pulleys (721), and a servo drive component (723) for driving the pulleys (721) to move.

7. The constant force feeding punching machine according to claim 6, characterized in that, One of the constant force rollers (731) has a meshing member (74) on one side of the mounting member (732) that engages with the transmission belt (722). The constant force roller (731) on the side of the mounting member (732) with the meshing member (74) can move under the drive of the servo drive mechanism (72) to adjust the distance between the two constant force rollers (731).

8. The constant force feeding punching machine according to claim 6, characterized in that, The servo drive (723) is a servo motor with built-in soft limit that can precisely control speed, position and torque.

9. The constant force feeding punching machine according to claim 1, characterized in that, The blanking device (2) includes a blanking fixed plate (21) and a blanking movable plate (22) that cooperates with the blanking fixed plate (21) to complete blanking. The blanking movable plate (22) is provided with multiple movable guide posts (221). The blanking fixed plate (21) is provided with multiple mating holes (211) corresponding to the movable guide posts (221). The blanking device (2) also includes a blanking drive mechanism (23) for driving the blanking movable plate (22) to move along the direction of the movable guide posts (221) and cooperate with the blanking fixed plate (21) for blanking.

10. The constant force feeding punching machine according to claim 1, characterized in that, The blanking device (2) is provided with a first feeding roller group (51) for conveying materials and a third driving mechanism (52) for driving the first feeding roller group (51) to move on the side close to the second collecting device (32). The blanking device (2) is provided with a second feeding roller group (61) for conveying materials and a fourth driving mechanism (62) for driving the second feeding roller group (61) to move on the side away from the second collecting device (32). The blanking device (2) is located between the first feeding roller group (51) and the second feeding roller group (61) so that the material is conveyed to the blanking device (2) by the second feeding roller group (61) under the drive of the second collecting device (32) to complete the blanking, and is guided by the first feeding roller group (51) and then collected by the second collecting device (32).

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