A cross cutting machine for paperboard production

Abstract

The utility model relates to paperboard production technical field, concretely relates to a paperboard production is with cross cutting machine, through the inside one side of frame body rotatory connection has two first limit rollers, and the inside other side of frame body rotatory connection has two second limit rollers, and two first limit rollers and two second limit rollers all sleeve joint limit sleeve, the outer wall one side of frame body is connected with drive motor through bolt fixing, and one end of one of two first limit rollers penetrates the side wall of frame body and is connected with drive motor output shaft transmission, and one of two first limit rollers and one of two second limit rollers are connected through belt winding, and the bottom of bearing plate is equipped with the elastic pressure structure that is composed of firm board and multiple extruding blocks, and the dynamic pressure is implemented to paperboard in the cutting process, effectively prevents the problem such as unevenness of cut, burr caused by paperboard warping, sliding, significantly improves the stability and consistency of cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of paperboard production technology, and in particular to a cross-cutting machine for paperboard production. Background Technology

[0002] Paperboard production is a core link in the packaging industry, widely used in the manufacture of various paper products such as corrugated boxes, display racks, and cushioning materials. As an important component of product packaging, the quality of paperboard directly affects the product's transportation safety, appearance, and environmental performance. In the paperboard production process, the cross-cutting machine, as a key piece of equipment, is mainly used to cut continuously running long strips of paperboard laterally to a set length. It is a crucial process for achieving fixed-length cutting of paperboard, improving production efficiency, and ensuring the consistency of finished product specifications.

[0003] Especially in the core step of cutting cardboard to length, existing cross-cutting machines have gradually revealed a series of obvious limitations and technical problems when handling cardboard of different thicknesses, widths, and materials. For example, utility model patent CN212020904U discloses a cross-cutting machine for cardboard production, including a base, positioning plate, wheel groove, two cross plates, a first support plate, a top plate, an electric slide rail, and a first fixed plate. The electric slide rail drives the cutting component to move along the top plate to achieve automatic cutting of the cardboard. It is also equipped with a dust collection device to simultaneously clean up paper scraps and dust generated during the cutting process. Although this device improves cutting efficiency and environmental hygiene to some extent, it still has obvious shortcomings in practical applications.

[0004] Firstly, in small-scale processing applications, existing cross-cutting machines have complex structures and high levels of automation, resulting in high equipment procurement and maintenance costs. This makes it difficult to meet the needs of small and medium-sized enterprises for low-cost, high-efficiency production equipment. Manual cutting cannot guarantee the stability of cardboard cutting, thus affecting the quality of cardboard processing and easily causing problems such as burrs on the cardboard edges and uneven cuts, seriously affecting the consistency and aesthetics of the finished product. More seriously, if the cardboard is not cut precisely or is misaligned, it may lead to the scrapping of the entire batch of products, wasting raw materials and significantly increasing the company's operating costs. Therefore, to address the many shortcomings of existing technologies, there is an urgent need to provide an innovative cross-cutting machine for cardboard production to solve the key technical problems of high operating costs, inconvenient adjustment, and poor cutting stability of current equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a cross-cutting machine for cardboard production, which solves the problem that manual cutting in the prior art cannot guarantee the stability of cardboard cutting, thereby affecting the quality of cardboard processing and easily causing burrs on the edges of the cardboard and uneven cuts.

[0006] To achieve the above objectives, this utility model provides a cross-cutting machine for cardboard production, including a frame, and a support plate slidably connected to one side of the inner side of the frame, and a cutting plate fixedly connected to one side of the bottom of the support plate; Two first limiting rollers are rotatably connected to one inner side of the frame, and two second limiting rollers are rotatably connected to the other inner side of the frame. Each of the two first limiting rollers and the two second limiting rollers is fitted with a limiting sleeve. A drive motor is fixedly connected to one side of the outer wall of the frame by bolts. One end of one of the two first limiting rollers passes through the side wall of the frame and is connected to the output shaft of the drive motor. One of the two first limiting rollers and one of the two second limiting rollers are connected by a belt. The two first limiting rollers and the two second limiting rollers are meshed together. A stabilizing plate is elastically connected to the bottom of the support plate, and several pressing blocks are fixedly connected to the bottom of the stabilizing plate. A top plate is fixedly connected to one side of the top of the frame, and a cylinder is fixedly connected to the top of the top plate by bolts. The output shaft of the cylinder passes through the top plate and is fixedly connected to the top of the support plate. A support plate is fixedly connected to the inner wall of the frame at the bottom of the support plate.

[0007] One side of the support plate is fixedly connected to a slider, and the slider is slidably connected to the inner wall of the frame through a groove.

[0008] The frame has side grooves on both sides, and the connection between the cylinder output shaft and the top plate is a sliding connection.

[0009] The top of the stabilizing plate is elastically connected to the bottom of the supporting plate through several compression springs, and the bottom of the supporting plate is fixedly connected to the top of the stabilizing plate through a damper.

[0010] One end of each of the two second limiting rollers and one end of each of the two first limiting rollers penetrate the side wall of the frame through a bearing sleeve.

[0011] Each of the two first limiting rollers has a first gear fitted onto one end, and the two first gears are meshed together. Each of the two second limiting rollers has a second gear fitted onto one end, and the two second gears are meshed together. One end of one of the two first limiting rollers and one end of one of the two second limiting rollers are fitted with a pulley, and the two pulleys are connected by a belt winding around each other.

[0012] This utility model discloses a cross-cutting machine for cardboard production. It utilizes a first and second limiting roller in conjunction with a drive motor and belt to form a stable feeding mechanism, eliminating the need for a complex electric slide rail structure, significantly reducing equipment manufacturing and maintenance costs, and making it more suitable for the economic needs of small and medium-sized enterprises. Secondly, by setting up a combination of first and second limiting rollers with switchable feeding paths, combined with the anti-slip design of the limiting sleeve, the equipment can adapt to the processing requirements of cardboard of different widths and thicknesses, improving the equipment's versatility and adjustment flexibility, and solving the technical problem of existing equipment's inability to quickly adapt to multiple specifications of cardboard. Thirdly, the bottom of the support plate has an elastic pressing structure composed of a stabilizing plate and multiple extrusion blocks, which dynamically presses the cardboard during the cutting process, effectively preventing uneven cuts and burrs caused by cardboard warping and sliding, significantly improving the stability and consistency of cutting quality. Furthermore, the cutting plate is installed at the bottom of the support plate and driven vertically by a cylinder, achieving precise control of the cutting action, avoiding the error risks of manual operation, and improving cutting efficiency and safety. Finally, the entire device has a compact structure and reliable component connections, facilitating daily cleaning and maintenance, reducing equipment failure rate, and extending service life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0015] Figure 2 This is a rear view structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the support plate structure according to an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the stabilizing plate structure according to an embodiment of the present utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the first limiting roller and the second limiting roller in an embodiment of this utility model.

[0019] 1. Frame; 2. First limiting roller; 3. Second limiting roller; 4. Side groove; 5. Bearing plate; 6. Limiting sleeve; 7. Top plate; 8. Cylinder; 9. Support plate; 10. Cutting plate; 11. Stabilizing plate; 12. Extrusion block; 13. Extrusion spring; 14. Damper; 15. Slider; 16. Slide groove; 17. Drive motor; 18. First gear; 19. Second gear; 20. Belt; 21. Pulley. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figure 1-5 .

[0022] A cardboard cross-cutting machine includes a frame 1, and a support plate 5 is slidably connected to one side of the inner side of the frame 1, and a cutting plate 10 is fixedly connected to one side of the bottom of the support plate 5. Two first limiting rollers 2 are rotatably connected to one inner side of the frame 1, and two second limiting rollers 3 are rotatably connected to the other inner side of the frame 1. Limiting sleeves 6 are fitted on both the first limiting rollers 2 and the two second limiting rollers 3. A drive motor 17 is fixedly connected to one outer wall of the frame 1 by bolts. One end of one of the two first limiting rollers 2 passes through the side wall of the frame 1 and is connected to the output shaft of the drive motor 17. One of the two first limiting rollers 2 and one of the two second limiting rollers 3 are connected by a belt 20. The two first limiting rollers 2 and the two second limiting rollers 3 are meshed together. A stabilizing plate 11 is elastically connected to the bottom of the bearing plate 5. Several extrusion blocks 12 are fixedly connected to the bottom of the stabilizing plate 11. A top plate 7 is fixedly connected to one top side of the frame 1. A cylinder 8 is fixedly connected to one top side of the top plate 7 by bolts. The output shaft of the cylinder 8 passes through the top plate 7 and is fixedly connected to the top of the bearing plate 5. A support plate 9 is fixedly connected to the inner wall of the frame 1 at the bottom of the bearing plate 5.

[0023] First, the cardboard to be cut is fed in from one side of the frame 1, passing over the top of one of the two first limiting rollers 2 and then through the gap between the two second limiting rollers 3. Alternatively, it can pass through the gap between the two first limiting rollers 2 first and then through the bottom of one of the two second limiting rollers 3. Both methods can be flexibly selected according to actual processing needs. The cardboard is stably conveyed to the top of the support plate 9 under the guidance of the limiting rollers and limiting sleeves 6. Then, the cylinder 8 is activated. The output shaft of the cylinder 8 passes through the top plate 7 and is fixedly connected to the top of the bearing plate 5, pushing the bearing plate 5 to move downward in the vertical direction. During the descent, the bearing plate 5 drives the cutting plate 10 to complete the cutting operation of the cardboard. At the same time, the stabilizing plate 11 elastically connected to the bottom of the bearing plate 5 also moves down and applies appropriate pressure to the cardboard during the cutting process through several extrusion blocks 12, ensuring that the cardboard remains flat and does not shift or deform during the cutting process, thereby improving the cutting accuracy and finished product quality.

[0024] Furthermore, a slider 15 is fixedly connected to one side of the support plate 5, and the slider 15 is slidably connected to the inner wall of the frame 1 through the slide groove 16. When the cylinder 8 drives the support plate 5 to move up and down, the slider 15 slides synchronously along the slide groove 16, which plays a guiding role and ensures that the vertical movement trajectory of the support plate 5 and its bottom cutting plate 10 is stable and accurate, avoiding cutting errors caused by offset, and achieving the effect of improving cutting accuracy and equipment operation stability.

[0025] Furthermore, side grooves 4 are provided on both sides of the frame 1, and the connection between the output shaft of the cylinder 8 and the top plate 7 is a sliding connection. This allows the cylinder 8 to flexibly adjust its direction according to the specific position of the cardboard when pushing the support plate 5 to move up and down. At the same time, the side grooves 4 provide additional support and guiding functions, enhancing the rigidity and stability of the entire system and achieving the effect of improving the adaptability and operational flexibility of the equipment.

[0026] Furthermore, the top of the stabilizing plate 11 is elastically connected to the bottom of the supporting plate 5 via several compression springs 13, and the bottom of the supporting plate 5 is fixedly connected to the top of the stabilizing plate 11 via a damper 14. When the supporting plate 5 moves down to perform the cutting operation, the stabilizing plate 11 descends accordingly and applies pressure to the cardboard through the compression block 12. The compression springs 13 and the damper 14 work together to provide appropriate clamping force to ensure the flatness of the cardboard and to buffer the impact to prevent damage to the cardboard or equipment, thereby enhancing the stability during the cutting process and protecting the quality of the finished product.

[0027] Furthermore, one end of each of the two second limiting rollers 3 and one end of each of the two first limiting rollers 2 pass through the side wall of the frame 1 via bearing sleeves, enabling the second limiting rollers 3 and the first limiting rollers 2 to maintain good rotational performance and positioning accuracy during high-speed rotation, reducing frictional resistance and wear, extending the service life of the equipment, and facilitating maintenance, thereby improving transmission efficiency and reducing maintenance costs.

[0028] Furthermore, a first gear 18 is fitted onto one end of each of the two first limiting rollers 2, and the two first gears 18 are meshed together. A second gear 19 is fitted onto one end of each of the two second limiting rollers 3, and the two second gears 19 are meshed together. A pulley 21 is fitted onto one end of one of the two first limiting rollers 2 and one end of one of the two second limiting rollers 3, and the two pulleys 21 are connected by a belt 20. This ensures that the cardboard maintains a uniform speed and stability during the conveying process, avoiding cardboard stretching or accumulation caused by inconsistent speeds, thus improving the stability of cardboard conveying and the consistency of cutting quality. In addition, the cooperation between the pulleys 21 and the belt 20 simplifies the design of the transmission system, reduces the failure rate, and improves the overall reliability and working efficiency of the equipment.

[0029] In summary: First, the cardboard to be cut is fed into the frame 1 from one side, passing over the top of one of the two first limiting rollers 2 and then through the gap between the two second limiting rollers 3. Alternatively, it can pass through the gap between the two first limiting rollers 2 first and then through the bottom of one of the two second limiting rollers 3. Both methods can be flexibly selected according to actual processing needs. Guided by the limiting rollers and limiting sleeves 6, the cardboard is stably conveyed to the top of the support plate 9. A drive motor 17 is fixedly connected to one side of the outer wall of the frame 1 by bolts. The output shaft of the drive motor 17 is connected to one of the first limiting rollers 2 and drives one of the second limiting rollers 3 to rotate synchronously through a belt 20. At the same time, the two first limiting rollers 2 and the two second limiting rollers 3 are linked by gear meshing to ensure that the cardboard can be conveyed stably and at a uniform speed before entering the cutting area. Then, cylinder 8 is activated. The output shaft of cylinder 8 passes through top plate 7 and is fixedly connected to the top of support plate 5, pushing support plate 5 to move downwards vertically. During the descent, support plate 5 drives cutting plate 10 to complete the cutting operation of cardboard. At the same time, the stabilizing plate 11 elastically connected to the bottom of support plate 5 also moves downwards, and applies appropriate pressure to the cardboard during the cutting process through several extrusion blocks 12, ensuring that the cardboard remains flat and does not shift or deform during the cutting process, thereby improving cutting accuracy and finished product quality. A slider 15 is fixedly connected to one side of support plate 5. The slider 15 is slidably connected to the inner wall of frame 1 through a slide groove 16. When cylinder 8 drives support plate 5 to move up and down, slider 15 slides synchronously along slide groove 16, playing a guiding role and ensuring that the vertical movement trajectory of support plate 5 and its bottom cutting plate 10 is stable and accurate, avoiding cutting errors caused by offset, and achieving the effect of improving cutting accuracy and equipment operation stability. In addition, side grooves 4 are provided on both sides of the frame 1. The connection between the output shaft of the cylinder 8 and the top plate 7 is a sliding connection, which allows the cylinder 8 to flexibly adjust its direction according to the specific position of the cardboard when pushing the support plate 5 to move up and down. At the same time, the side grooves 4 provide additional support and guidance functions, enhancing the rigidity and stability of the entire system and achieving the effect of improving the adaptability and operational flexibility of the equipment. The top of the stabilizing plate 11 is elastically connected to the bottom of the support plate 5 through several compression springs 13, and the bottom of the support plate 5 is fixedly connected to the top of the stabilizing plate 11 through a damper 14. When the support plate 5 moves down to perform the cutting operation, the stabilizing plate 11 descends accordingly and applies pressure to the cardboard through the compression block 12. The compression springs 13 and the damper 14 work together to provide appropriate clamping force to ensure the flatness of the cardboard and to buffer the impact to prevent damage to the cardboard or equipment, thereby enhancing the stability during the cutting process and protecting the quality of the finished product.Furthermore, one end of each of the two second limiting rollers 3 and one end of each of the two first limiting rollers 2 pass through the side wall of the frame 1 via bearing sleeves. This allows the second limiting rollers 3 and the first limiting rollers 2 to maintain good rotational performance and positioning accuracy during high-speed rotation, reducing frictional resistance and wear, extending the service life of the equipment, and facilitating maintenance. This achieves the effects of improving transmission efficiency and reducing maintenance costs. One end of each of the two first limiting rollers 2 is fitted with a first gear 18, and the two first gears 18 are meshed together. One end of each of the two second limiting rollers 3 is fitted with a second gear 19, and the two second gears 19 are meshed together. One end of each of the two first limiting rollers 2 and one end of each of the two second limiting rollers 3 is fitted with a pulley 21, and the two pulleys 21 are connected by a belt 20. This ensures that the cardboard maintains a uniform speed and stable state during the conveying process, avoiding cardboard stretching or accumulation caused by inconsistent speeds, and achieving the effect of improving the stability of cardboard conveying and the consistency of cutting quality. Furthermore, the combination of pulley 21 and belt 20 simplifies the design of the transmission system, reduces the failure rate, and improves the overall reliability and efficiency of the equipment. The device significantly reduces manufacturing and maintenance costs, making it more suitable for the economic needs of small and medium-sized enterprises. Secondly, by combining the first limiting roller 2 and the second limiting roller 3 with switchable feeding paths, along with the anti-slip design of the limiting sleeve 6, the device can adapt to the processing requirements of cardboard of different widths and thicknesses, improving its versatility and adjustment flexibility, and solving the technical problem of existing equipment being unable to quickly adapt to multiple specifications of cardboard. Thirdly, the bottom of the support plate 5 is equipped with an elastic pressing structure consisting of a stabilizing plate 11 and multiple extrusion blocks 12, which dynamically presses the cardboard during the cutting process, effectively preventing uneven cuts and burrs caused by cardboard warping and sliding, significantly improving the stability and consistency of cutting quality. In addition, the cutting plate 10 is installed at the bottom of the support plate 5 and is driven vertically by the cylinder 8, achieving precise control of the cutting action, avoiding the error risks caused by manual operation, and improving cutting efficiency and safety. Finally, the entire device has a compact structure and reliable component connections, facilitating daily cleaning and maintenance, reducing equipment failure rate, and extending service life.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A cross-cutting machine for cardboard production, comprising a frame, characterized in that, It also includes a support plate that is slidably connected to one side of the inner side of the frame, and a cutting plate that is fixedly connected to one side of the bottom of the support plate; Two first limiting rollers are rotatably connected to one inner side of the frame, and two second limiting rollers are rotatably connected to the other inner side of the frame. Each of the two first and two second limiting rollers is fitted with a limiting sleeve. A drive motor is bolted to one side of the outer wall of the frame. One end of one of the two first limiting rollers passes through the side wall of the frame and is connected to the output shaft of the drive motor. One of the two first limiting rollers and one of the two second limiting rollers are connected by a belt, and the two first and two second limiting rollers are meshed together. A stabilizing plate is elastically connected to the bottom of the support plate, and several pressing blocks are fixedly connected to the bottom of the stabilizing plate. A top plate is fixedly connected to one top side of the frame, and a cylinder is bolted to one top side of the top plate. The output shaft of the cylinder passes through the top plate and is fixedly connected to the top of the support plate. A support plate is fixedly connected to the inner wall of the frame at the bottom of the support plate.

2. The cardboard cutting machine as described in claim 1, characterized in that, A slider is fixedly connected to one side of the support plate, and the slider is slidably connected to the inner wall of the frame through a groove.

3. The cardboard cutting machine for production as described in claim 1, characterized in that, Side grooves are provided on both sides of the frame, and the connection between the output shaft of the cylinder and the top plate is a sliding connection.

4. The cardboard cutting machine for production as described in claim 1, characterized in that, The top of the stabilizing plate is elastically connected to the bottom of the supporting plate by several compression springs, and the bottom of the supporting plate is fixedly connected to the top of the stabilizing plate by a damper.

5. A cross-cutting machine for cardboard production as described in claim 1, characterized in that, One end of each of the two second limiting rollers and one end of each of the two first limiting rollers pass through the side wall of the frame via a bearing sleeve.

6. A cross-cutting machine for cardboard production as described in claim 1, characterized in that, Each of the two first limiting rollers has a first gear fitted onto one end, and the two first gears are meshed together. Each of the two second limiting rollers has a second gear fitted onto one end, and the two second gears are meshed together. One end of one of the two first limiting rollers and one end of one of the two second limiting rollers are fitted with a pulley, and the two pulleys are connected by a belt winding around each other.

Images