Slitting machine

Abstract

The utility model relates to the technical field of packaging equipment, and discloses a slitting machine which comprises a rack, the rack comprises large wallboards on the left side and the right side, a transverse rod is fixedly connected between the two large wallboards, and the front side and the rear side of the rack are connected with a guide roller set and a traction roller set respectively. A deviation rectifying support driving mechanism used for driving the deviation rectifying support to move left and right relative to the rack is arranged between the deviation rectifying support and the rack, the deviation rectifying support is rotationally connected with a pair of rotating shafts distributed in the vertical direction, and the outer sides of the deviation rectifying support are fixedly connected with driving motors driving the corresponding rotating shafts to rotate respectively. At least one pair of knife rest sets corresponding up and down are clamped to the two rotating shafts in a sliding mode respectively, and knife rest set driving mechanisms used for driving the knife rest sets to move left and right on the corresponding rotating shafts are arranged between the deviation rectifying support and the corresponding knife rest sets. According to the slitting machine, paper feeding debugging and slitting of paperboards are facilitated, automatic adjustment of deviation of the paperboards can be achieved, the paper cutting precision and the production efficiency are improved, and the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field especially relates to a longitudinal cutting machine. BACKGROUND

[0002] The longitudinal cutting machine is a kind of matching equipment on packaging paperboard production line, and the main function of longitudinal cutting machine is to cut packaging paperboard according to the width required in production line.

[0003] The existing longitudinal cutting machine usually includes longitudinal cutting knife for cutting packaging paperboard, but in the production and processing process, the position of longitudinal cutting knife needs to be adjusted manually for many times due to the need to adjust the cutting width of packaging paperboard according to product requirements;Usually, the longitudinal cutting knife can only move left and right, and the gap between the two longitudinal cutting knives is fixed, and cannot be adjusted in height, so the whole production line needs to be stopped for operation, which is time-consuming and complicated;When packaging paperboard is conveyed, deviation often occurs, and the longitudinal cutting knife cannot be adjusted accordingly, so the quality of longitudinal cutting of packaging paperboard cannot be guaranteed. SUMMARY

[0004] The utility model provides a longitudinal cutting machine, the longitudinal cutting machine is convenient for paperboard paper feeding debugging and longitudinal cutting, can realize the automatic adjustment of paperboard deviation, improve paper cutting precision and production efficiency, and reduce labor intensity.

[0005] The above-mentioned purpose of the utility model is realized by the following technical scheme:

[0006] A longitudinal cutting machine, comprising a rack, the rack comprises two large wallboards on the left and right sides, a cross bar is fixedly connected between the two large wallboards, a guide stick group and a traction stick group are connected to the front and rear sides of the rack respectively, a deviation rectifying bracket is arranged in the middle of the rack, a deviation rectifying bracket driving mechanism is arranged between the deviation rectifying bracket and the rack for driving the deviation rectifying bracket to move left and right relative to the rack, a pair of rotating shafts distributed in the up-down direction are rotatably connected to the deviation rectifying bracket, drive motors are fixedly connected to the outer side of the deviation rectifying bracket for driving the corresponding rotating shafts to rotate, at least one pair of knife holder groups corresponding to the up and down directions are slidably connected to the two rotating shafts respectively, and a knife holder group driving mechanism is arranged between the deviation rectifying bracket and the corresponding knife holder group for driving the knife holder group to move left and right on the corresponding rotating shaft.

[0007] The above-mentioned longitudinal cutting machine, wherein the deviation rectifying bracket comprises a pair of small wallboards, the large wallboards are provided with through holes corresponding to the small wallboards respectively, an upper reinforcing beam and a lower reinforcing beam are fixedly connected between the two small wallboards in the up-down direction respectively, a sliding rod is fixedly connected to the bottom of the lower reinforcing beam, and a sliding block part is slidably connected to the sliding rod on the inner side of the two large wallboards.

[0008] In the aforementioned slitting machine, the slider section includes a slider seat fixedly connected to the inner side of the large wall panel, and a slider fixedly connected to the upper part of the slider seat and slidably connected to the slide rail.

[0009] The aforementioned longitudinal cutting machine includes a straight-line pusher fixed to one end of the upper reinforcing beam, wherein the push rod end of the straight-line pusher is fixed to an adjacent large wall panel.

[0010] In the aforementioned slitting machine, the blade holder assembly includes a blade holder, a sliding sleeve, a support plate, a mounting plate, a blade head, and a cylinder. A sliding block is fixedly connected to the blade holder. Slide rails, which are slidably connected to the corresponding sliding blocks, are fixedly mounted on the upper and lower reinforcing beams. A support plate is fixedly connected to the side of the blade holder opposite to the sliding block. One side of the support plate is rotatably connected to the sliding sleeve. The sliding sleeve is fitted and engaged with a corresponding rotating shaft. One side of the sliding sleeve is coaxially fixedly connected to a drive pulley. The other side of the sliding sleeve is rotatably connected to a mounting plate. The other side of the mounting plate is rotatably connected to a shaft. One end of the shaft is fixedly connected to a disc-shaped blade head, and the other end of the shaft is fixedly connected to a driven pulley that is driven by the drive pulley. The cylinder is rotatably connected to the blade holder, and the cylinder rod is rotatably connected to the mounting plate.

[0011] In the aforementioned slitting machine, the tool holder drive mechanism includes a tool holder motor fixedly connected to the tool holder, a gear fixedly connected to the rotating shaft of the tool holder motor, and racks that mesh with the corresponding gears fixedly connected to the upper and lower reinforcing beams, respectively.

[0012] In the aforementioned slitting machine, the traction roller assembly includes a reducer, a lower traction roller, and an upper traction roller. The two ends of the lower traction roller are rotatably connected to the large wall panel. A reducer connected to the lower traction roller is provided on one side of the frame. Vertical slide rails are provided above the two large wall panels. The upper traction roller bushing is slidably mounted in the slide rails. The two ends of the upper guide roller are rotatably connected to the upper traction roller bushing. An upper traction roller motor is fixedly connected to the large wall panel at the top of the slide rails. The drive rod of the upper traction roller motor is rotatably connected to the corresponding upper traction roller bushing.

[0013] In the aforementioned slitting machine, position sensors for detecting the edge position of the cardboard are respectively provided on both sides of the lower traction roller.

[0014] In the aforementioned slitting machine, the guide roller assembly includes two fixed plates, a lower guide roller, and an upper guide roller. The fixed plates are fixedly connected to the front side of the corresponding large wall panel. The lower guide roller is rotatably connected between the two fixed plates. A vertical sliding groove is provided above the two fixed plates. An upper guide roller bushing slides in the sliding groove. Both ends of the upper guide roller are rotatably connected to the upper guide roller bushing. The tops of the two fixed plates are respectively fixedly connected to upper guide roller motors. The drive rod of the upper guide roller motor is rotatably connected to the corresponding upper guide roller bushing.

[0015] In the aforementioned slitting machine, the rotating shaft is a 4, 5, or 6 square shaft.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] This invention features guide roller assemblies and traction roller assemblies connected to the front and rear sides of the frame, respectively. A correction bracket is located in the middle of the frame, and a correction bracket drive mechanism is provided between the correction bracket and the frame to drive the correction bracket to move left and right relative to the frame. A pair of rotating shafts distributed vertically are rotatably connected to the correction bracket, and drive motors for driving the corresponding rotating shafts are fixedly connected to the outside of the correction bracket. At least one pair of corresponding blade holder assemblies are slidably engaged on the two rotating shafts, and a blade holder assembly drive mechanism is provided between the correction bracket and the corresponding blade holder assembly to drive the blade holder assembly to move left and right on the corresponding rotating shaft. This slitting machine facilitates paperboard feeding adjustment and slitting; it can automatically adjust the paperboard offset, improve cutting accuracy and production efficiency, and reduce labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the guide roller removal assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the present invention, which removes the guide rod assembly and the traction rod assembly.

[0022] The diagram shows: 1. Frame; 11. Large wall panel; 12. Crossbar; 13. Position sensor; 2. Guide roller assembly; 21. Fixing plate; 211. Slide groove; 212. Upper guide roller bushing; 22. Lower guide roller; 23. Upper guide roller; 24. Upper guide roller motor; 3. Traction roller assembly; 31. Reducer; 32. Lower traction roller; 33. Upper traction roller; 34. Slide rail; 35. Upper traction roller bushing; 36. Upper traction roller motor; 4. Correction bracket; 41. Small wall panel; 42. Upper reinforcing beam; 43. Lower reinforcing beam; 431. Slide rod; 44. Slider section; 441. Slider seat; 442. Slider; 45. Slide rail; 46. Rack; 5. Correction bracket drive mechanism; 51. Linear pusher; 6. Rotary shaft; 7. Drive motor; 8. Tool holder assembly; 81. Tool holder; 811. Slide seat; 82. Support plate; 83. Sliding sleeve; 831. Drive pulley; 84. Mounting plate; 841. Shaft; 85. Tool head; 851. Driven pulley; 86. Cylinder; 9. Tool holder assembly drive mechanism; 91. Tool holder motor; 911. Gear. Detailed Implementation

[0023] The following is in conjunction with the appendixFigures 1-4 The present invention will be described in further detail below.

[0024] like Figure 1 , 2 As shown, a slitting machine includes a frame 1, which includes large wall panels 11 on the left and right sides. A crossbar 12 is fixed between the two large wall panels 11. A guide roller group 2 and a traction roller group 3 are rotatably connected to the front and rear sides of the frame 1, respectively. A correction bracket 4 is provided in the middle of the frame 1. A correction bracket drive mechanism 5 is provided between the correction bracket 4 and the frame 1 for driving the correction bracket 4 to move left and right relative to the frame 1.

[0025] like Figure 4 As shown, a pair of rotating shafts 6 distributed along the vertical direction are rotatably connected to the correction bracket 4. Drive motors 7 that drive the corresponding rotating shafts 6 to rotate are fixedly connected to the outside of the correction bracket 4. At least one pair of tool holder groups 8 corresponding to the upper and lower parts are slidably engaged on the two rotating shafts 6. A tool holder group drive mechanism 9 for driving the tool holder group 8 to move left and right on the corresponding rotating shaft 6 is provided between the correction bracket 4 and the corresponding tool holder group 8.

[0026] In this embodiment, two pairs of tool holders 8 are provided on a pair of rotating shafts 6.

[0027] The rotating shaft 6 can be a 4, 5, or 6 square shaft. In this embodiment, the rotating shaft is a 6 square shaft.

[0028] like Figure 3 , 4 As shown, the correction bracket 4 in this embodiment includes a pair of small wall plates 41. The middle part of the large wall plate 11 is provided with through holes corresponding to the corresponding small wall plates 41. The small wall plates 41 are fitted into the through holes of the corresponding large wall plates 11. The upper reinforcing beam 42 and the lower reinforcing beam 43 are fixedly connected between the two small wall plates 41 in the vertical direction. The bottom sides of the lower reinforcing beam 43 are fixedly connected to the sliding rods 431. The inner sides of the two large wall plates 11 are fixedly connected to the sliders 44 that are slidably connected to the sliding rods 431.

[0029] like Figure 3 , 4 As shown, the slider part 44 in this embodiment includes a slider seat 441 fixedly connected to the inner side of the large wall panel 11, and a slider 442 fixedly connected above the slider seat 441 and slidably connected to the slider rod 431.

[0030] The alignment bracket 4 can slide left and right relative to the frame 1 through the cooperation of the slide rod 431 and the slider 442.

[0031] like Figure 3 , 4 As shown, the correction bracket drive mechanism 5 in this embodiment includes a linear pusher 51 fixedly connected to one end of the upper reinforcing beam 42, and the push rod end of the linear pusher 51 is fixedly connected to the adjacent large wall panel 11.

[0032] The extension and retraction of the push rod of the linear actuator 51 can drive the slide rod 431 and the slider 442 on the correction bracket 4 to slide left and right relative to the frame 1.

[0033] like Figure 4 As shown, the tool holder assembly 8 in this embodiment includes a tool holder 81, a sliding sleeve 83, a support plate 82, a mounting plate 84, a tool head 85, and a cylinder 86. A sliding seat 811 is fixedly connected to the horizontally arranged tool holder 81. Slide rails 45, which are slidably connected to the corresponding sliding seats 811, are fixedly mounted on the upper reinforcing beam 42 and the lower reinforcing beam 43. The support plate 82 is fixedly connected to the side of the tool holder 81 opposite to the sliding seat 811. The support plate 82 is perpendicular to the tool holder 81. One side of the support plate 82 is rotatably connected to the sliding sleeve 83. The sliding sleeve 83 is sleeved and engaged on the corresponding rotating shaft 6, allowing the sliding sleeve 83 to move left and right on the rotating shaft 6. The sliding sleeve 83 slides to the right and rotates synchronously with the rotating shaft 6. One side of the sliding sleeve 83 is coaxially fixed to the drive pulley 831, and the other side of the sliding sleeve 83 is rotatably connected to the mounting plate 84. The other side of the mounting plate 84 is rotatably connected to the shaft 841. One end of the shaft 841 is fixedly connected to the disc-shaped cutter head 85, and the other end of the shaft 841 is fixedly connected to the driven pulley 851, which is driven by the drive pulley 831. A conveyor belt is driven between the drive pulley 831 and the driven pulley 851. The cylinder 86 is rotatably connected to the cutter holder 81, and the cylinder rod of the cylinder 86 is rotatably connected to the mounting plate 84.

[0034] When the drive motor 7 is working, it can drive the corresponding rotating shaft 6 to rotate. The rotating shaft 6 drives the sliding sleeve 83, which is sleeved and engaged with it, to rotate. The driving pulley 831, which is fixed to the sliding sleeve 83, drives the driven pulley 851 to rotate synchronously through the conveyor belt. The driven pulley 851 drives the cutter head 85 to rotate synchronously through the shaft 841, which is fixed to it.

[0035] The cylinder 86 is controlled to work. The cylinder rod of the cylinder 86 can control the mounting plate 84 to rotate coaxially on the sliding sleeve 83, so that the cutter head 85 can move closer to or further away from the cutter holder 81, thereby controlling the gap between the two cutter heads 85 on the two opposite cutter holder groups 8 on the two rotating shafts 6, so as to facilitate the smooth operation of paper cutting.

[0036] Specifically, before cutting the paper, the cylinder rod of the control cylinder 86 retracts, the cutter head 85 moves closer to the corresponding cutter seat 81, and the gap between the two cutter heads 85 increases, which facilitates the feeding of the paperboard; then the cylinder rod of the control cylinder 86 extends, and the gap between the two cutter heads 85 is controlled to meet the paper cutting distance.

[0037] like Figure 4 As shown, the tool holder drive mechanism 9 includes a tool holder motor 91 fixedly connected to the tool holder 81, a gear 911 fixedly connected to the shaft of the tool holder motor 91, and racks 46 that mesh with the corresponding gears 911 fixedly connected to the upper reinforcing beam 42 and the lower reinforcing beam 43, respectively. The racks 46 extend in the left and right direction.

[0038] When the tool holder motor 91 is working, it can drive the gear 911 to rotate in both directions. The meshing of the gear 911 with the rack 46 will drive the tool holder 81 to move left and right along the length of the rack 46, so that the tool holder assembly 8 can slide left and right on the corresponding rotating shaft 6.

[0039] By using the blade holder assembly drive mechanism 9, the gap between the two blades 85 on the opposite blade holder assembly 8 in the left and right directions can be controlled to meet the paper cutting requirements, thereby successfully completing the cutting of the cardboard.

[0040] like Figure 2 As shown, the traction rod assembly 3 in this embodiment includes a reducer 31, a lower traction rod 32, and an upper traction rod 33. The two ends of the lower traction rod 32 are rotatably connected to the large wall plate 11. A reducer 31 that is connected to the lower traction rod 32 is provided on one side of the frame 1. A vertical slide rail 34 is provided above the two large wall plates 11. The upper traction rod bushing 35 is slidably mounted in the slide rail 34. The two ends of the upper guide rod 23 are rotatably connected in the upper traction rod bushing 35. An upper traction rod motor 36 is fixedly connected to the large wall plate 11 at the top of the slide rail 34. The drive rod of the upper traction rod motor 36 is rotatably connected to the corresponding upper traction rod bushing 35.

[0041] Before cutting the paper, the upper traction roller sleeve 35 is controlled by the upper traction roller motor 36 to slide upward in the slide rail 34, thereby increasing the gap between the lower traction roller 32 and the upper traction roller 33, making it easier to feed the cardboard between the lower traction roller 32 and the upper traction roller 33; the operation is reversed when cutting the paper.

[0042] like Figure 1 As shown, the guide rod assembly 2 in this embodiment includes two fixed plates 21, a lower guide rod 22 and an upper guide rod 23. The fixed plates 21 are fixedly connected to the front side of the corresponding large wall panel 11. The lower guide rod 22 is rotatably connected between the two fixed plates 21. A vertical sliding groove 211 is provided above the two fixed plates 21. The upper guide rod bushing 212 is slidably installed in the sliding groove 211. The two ends of the upper guide rod 23 are rotatably connected in the upper guide rod bushing 212. The tops of the two fixed plates 21 are respectively fixedly connected to the upper guide rod motor 24. The drive rod of the upper guide rod motor 24 is rotatably connected to the corresponding upper guide rod bushing 212.

[0043] Before cutting the paper, the upper guide roller sleeve 212 is controlled by the upper guide roller motor 24 to slide upward in the slide groove 211, thereby increasing the gap between the lower guide roller 22 and the upper guide roller 23, making it easier to feed the cardboard between the lower guide roller 22 and the upper guide roller 23; the operation is reversed when cutting the paper.

[0044] like Figure 2 As shown, position sensors 13 for detecting the position of the cardboard edge are provided on both sides of the lower traction rod 32.

[0045] The positions of the two position sensors 13 can be adjusted according to the different widths of the cardboard.

[0046] The position sensors 13 on both sides of the lower traction roller 32 are used to detect the position of the cardboard on both sides. When the right position sensor 13 does not detect the cardboard, it means that the cardboard's travel path has shifted to the left. The right position sensor 13 transmits the position information to the controller, and the controller controls the linear pusher 51 to push the correction bracket 4 to move to the left relative to the frame 1. When the left position sensor 13 does not detect the cardboard, it means that the cardboard's travel path has shifted to the right. The left position sensor 13 transmits the position information to the controller, and the controller controls the linear pusher 51 to push the correction bracket 4 to move to the right relative to the frame 1. This achieves automatic adjustment and cutting of the cardboard offset, ensuring the quality of the packaging cardboard cutting.

[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A slitting machine, comprising a frame, the frame including large wall panels on the left and right sides, a crossbar fixedly connected between the two large wall panels, and guide roller assemblies and traction roller assemblies respectively connected to the front and rear sides of the frame, characterized in that, A correction bracket is provided in the middle of the frame. A correction bracket drive mechanism is provided between the correction bracket and the frame for driving the correction bracket to move left and right relative to the frame. A pair of rotating shafts distributed in the vertical direction are rotatably connected to the correction bracket. A drive motor for driving the corresponding rotating shaft is fixedly connected to the outside of the correction bracket. At least one pair of tool holder groups corresponding to the upper and lower parts are slidably engaged on the two rotating shafts. A tool holder group drive mechanism is provided between the correction bracket and the corresponding tool holder group for driving the tool holder group to move left and right on the corresponding rotating shaft.

2. The slitting machine according to claim 1, characterized in that, The correction bracket includes a pair of small wall panels. The middle part of the large wall panel is provided with through holes corresponding to the corresponding small wall panels. An upper reinforcing beam and a lower reinforcing beam are fixedly connected between the two small wall panels in the vertical direction. Sliding rods are fixedly connected to both sides of the bottom of the lower reinforcing beam. A slider part that is slidably connected to the sliding rod is fixedly connected to the inner side of the two large wall panels.

3. The slitting machine according to claim 2, characterized in that, The slider part includes a slider seat fixed to the inner side of the large wall panel, and a slider fixed above the slider seat and slidably connected to the slider rod.

4. The slitting machine according to claim 2, characterized in that, The correction bracket drive mechanism includes a linear actuator fixed to one end of the upper reinforcing beam, and the push rod end of the linear actuator is fixed to the adjacent large wall panel.

5. The slitting machine according to claim 2, characterized in that, The tool holder assembly includes a tool holder, a sliding sleeve, a support plate, a mounting plate, a tool head, and a cylinder. A sliding seat is fixedly connected to the tool holder. Slide rails, which are slidably connected to the corresponding sliding seats, are fixedly mounted on the upper and lower reinforcing beams. A support plate is fixedly connected to the side of the tool holder opposite to the sliding seat. One side of the support plate is rotatably connected to the sliding sleeve. The sliding sleeve is fitted and engaged with a corresponding rotating shaft. One side of the sliding sleeve is coaxially fixedly connected to a drive pulley. The other side of the sliding sleeve is rotatably connected to a mounting plate. The other side of the mounting plate is rotatably connected to a shaft. One end of the shaft is fixedly connected to a disc-shaped tool head, and the other end is fixedly connected to a driven pulley that is driven by the drive pulley. The cylinder is rotatably connected to the tool holder, and the cylinder rod is rotatably connected to the mounting plate.

6. The slitting machine according to claim 5, characterized in that, The tool holder assembly drive mechanism includes a tool holder motor fixedly connected to the tool holder, a gear fixedly connected to the rotating shaft of the tool holder motor, and racks that mesh with the corresponding gears fixedly connected to the upper and lower reinforcing beams, respectively.

7. The slitting machine according to claim 1, characterized in that, The traction rod assembly includes a reducer, a lower traction rod, and an upper traction rod. The two ends of the lower traction rod are rotatably connected to the large wall panel. A reducer connected to the lower traction rod is provided on one side of the frame. Vertical slide rails are provided above the two large wall panels. The upper traction rod bushing is slidably mounted in the slide rails. The two ends of the upper guide rod are rotatably connected to the upper traction rod bushing. The upper traction rod motor is fixedly connected to the large wall panel at the top of the slide rails. The drive rod of the upper traction rod motor is rotatably connected to the corresponding upper traction rod bushing.

8. The slitting machine according to claim 7, characterized in that, The lower traction rod is equipped with position sensors on both sides for detecting the position of the cardboard edge.

9. The slitting machine according to claim 1, characterized in that, The guide rod assembly includes two fixed plates, a lower guide rod, and an upper guide rod. The fixed plates are fixed to the front side of the corresponding large wall panel. The lower guide rod is rotatably connected between the two fixed plates. A vertical sliding groove is provided above the two fixed plates. The upper guide rod bushing slides in the sliding groove. The two ends of the upper guide rod are rotatably connected to the upper guide rod bushing. The tops of the two fixed plates are respectively fixed to the upper guide rod motor. The drive rod of the upper guide rod motor is rotatably connected to the corresponding upper guide rod bushing.

10. The slitting machine according to claim 1, characterized in that, The rotating shaft is a 4, 5, or 6 square shaft.

Images