Adjustable paper virtual cutting device
Through the design of the adjustable paper dummy cutting device, flexible adjustment of the dummy cutting knife and the compression seat is achieved, solving the problem of the inability to adjust the cutting position and depth in traditional paper bag production, improving the consistency of the cutting effect and production efficiency, and reducing consumable losses.
Patent Information
- Application Number
- CN202422360319.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the production of traditional paper bags, the cutting position and depth of the paper dummy cutting device cannot be flexibly adjusted, resulting in poor equipment adaptability, increasing operational difficulty and error risk, and high consumable loss.
An adjustable paper dummy cutting device is designed. Through the adjustment structure on the main shaft and the secondary shaft, the flexible adjustment of the dummy cutting knife and the compression seat is achieved. Combined with the cutting needs of different paper specifications, the matching design of the cutter and the dummy cutting knife is adopted to reduce consumable losses.
Improves the consistency and reliability of cutting effects, reduces material waste, improves production efficiency and equipment economy.
Smart Images
Figure CN223072059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paper cutting devices, in particular to an adjustable paper virtual cutting device. Background Art
[0002] In the process of paper bag production, in order to meet the consumers' demand for the easy-tearing property of paper bags, it is usually necessary to perform virtual cutting on the paper during the production process. Virtual cutting means cutting the paper to a certain depth so that it can be easily torn during subsequent use. However, most of the traditional virtual cutting tools and their pressing blocks are of fixed design, resulting in the inability to flexibly adjust the cutting position and depth when processing papers of different specifications or thicknesses. This fixed design not only limits the adaptability of the production line but also increases the working difficulty of the operators and the risk of errors during the cutting process.
[0003] Therefore, it is necessary to further improve and perfect the existing technology to overcome these deficiencies, and the present utility model is made based on this situation. Summary of the Utility Model
[0004] The purpose of the present utility model is to overcome the deficiencies of the existing technology and provide an adjustable paper virtual cutting device, which can flexibly adjust the position and cutting depth according to different specifications of papers, thereby ensuring the consistency and reliability of the cutting effect, significantly improving the production efficiency, and reducing material waste.
[0005] The present utility model is realized through the following technical solutions:
[0006] To solve the above technical problems, the present utility model provides an adjustable paper virtual cutting device, which includes a mounting frame, a main shaft and a secondary shaft provided thereon. A driving device for driving the main shaft to rotate is connected to the main shaft;
[0007] A plurality of tool holders are provided on the main shaft, and serrated virtual cutting knives are provided on the tool holders. A first adjusting structure for adjusting the height of the tool holder is provided between the main shaft and the tool holder;
[0008] A pressing seat is provided on the secondary shaft, and a rubber-coated cylinder or a tool groove that can cooperate with the virtual cutting knife to cut the paper is provided on the pressing seat. A second adjusting structure for adjusting the height of the pressing seat is provided between the secondary shaft and the pressing seat.
[0009] To further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, the first adjusting structure includes a first central hole provided on the tool holder and sleeved on the main shaft, a setscrew provided between the tool holder and the main shaft for locking the two, and a first keyway and key structure for restricting the relative rotation of the two.
[0010] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, when a rubber-coated cylinder rotatably connected thereto is provided on the pressing seat, the second adjusting structure includes a second central hole provided on the pressing seat and sleeved on the secondary shaft, and retaining rings provided at the upper and lower ends of the pressing seat. The retaining rings are sleeved on the secondary shaft and a locking screw is provided between them for locking the two.
[0011] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, when a knife groove is provided on the pressing seat, the second adjusting structure includes a second central hole provided on the pressing seat and sleeved on the secondary shaft, and a set screw provided between the pressing seat and the secondary shaft for locking the two and a second keyway and key structure for restricting their relative rotation.
[0012] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, an adjustable connection structure for adjusting the horizontal position of the secondary shaft is provided between the upper end of the secondary shaft and the mounting bracket and between the lower end of the secondary shaft and the mounting bracket. The adjustable connection structure includes a strip hole provided on the mounting bracket and a set screw installed in the corresponding strip hole and threadedly connected to the upper end or the lower end of the secondary shaft.
[0013] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, when a rubber-coated cylinder sleeved on the secondary shaft and capable of rotating is provided on the pressing seat, the driving device includes a motor, and a gear transmission mechanism is provided between the output shaft of the motor and the main shaft.
[0014] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, when a knife groove is provided on the pressing seat, the driving device includes a motor, a first pulley and a second pulley rotatably connected to the mounting bracket. A synchronous belt transmission mechanism is provided between the motor and the first pulley and the second pulley. A conjugate gear transmission mechanism is provided between the first pulley and the main shaft and between the second pulley and the secondary shaft. And an elliptical gear transmission mechanism for intermittent meshing and separation is provided between the main shaft and the secondary shaft.
[0015] In order to further solve the technical problems to be solved by the present utility model, in an adjustable paper virtual cutting device provided by the present utility model, the elliptical gear transmission mechanism includes a first elliptical gear provided at the lower end of the main shaft or a second elliptical gear provided at the lower end of the secondary shaft. The main shaft is at the focus of the first elliptical gear, the secondary shaft is at the focus of the second elliptical gear, and the first elliptical gear and the second elliptical gear can intermittently mesh and separate.
[0016] To further solve the technical problems to be addressed by the present utility model, in an adjustable paper scoring device provided by the present utility model, the conjugate gear transmission mechanism includes a third elliptical gear provided on the first pulley or a fourth elliptical gear provided on the second pulley, and the third elliptical gear and the first elliptical gear mesh with each other to form a conjugate gear pair, and the fourth elliptical gear and the second elliptical gear mesh with each other to form a conjugate gear pair.
[0017] To further solve the technical problems to be addressed by the present utility model, in an adjustable paper scoring device provided by the present utility model, a swing-type tension roller for adjusting the paper tension is further provided on the mounting frame. The swing-type tension roller includes a main roller, two swing arms are provided on the main roller, a sub-roller capable of rotating around the main roller is provided between the two swing arms, and a fastener is provided between the swing arm and the main roller.
[0018] Compared with the prior art, the present utility model has the following advantages:
[0019] 1. In the present utility model, the application of the first adjustment structure and the second adjustment structure enables the positions of the scoring knife and the rubber-coated cylinder or the knife groove to be flexibly adjusted. This design greatly improves the adaptability of the equipment during the cutting process, enabling it to adjust the cutting depth and position according to different specifications of the paper, thereby ensuring the consistency and reliability of the cutting effect. At the same time, this adjustable paper scoring device significantly improves production efficiency and reduces material waste.
[0020] 2. In one solution of the present utility model, a cooperative design of the knife groove and the scoring knife is adopted, and when the scoring knife cuts the paper, its blade directly inserts into the knife groove. This design not only enables smooth paper cutting but also effectively avoids the problem of consumable loss caused by using a rubber-coated cylinder, significantly improving the economy and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The following further elaborates in detail the specific embodiments of the present utility model in conjunction with the drawings, where:
[0022] Figure 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the present utility model;
[0023] Figure 2 is a three-dimensional structural schematic diagram of the main shaft and the knife holder and the scoring knife thereon;
[0024] Figure 3 is a three-dimensional structural schematic diagram of the scoring knife;
[0025] Figure 4 is a three-dimensional structural schematic of Embodiment 2 of the present utility model Figure 1 ;
[0026] Figure 5Schematic diagram of the three-dimensional structure of the second embodiment Figure 2 ;
[0027] Figure 6 Is the bottom view of the second embodiment;
[0028] Figure 7 Is the schematic diagram of the three-dimensional structure of the secondary shaft and the pressing seat and the knife groove on it in the second embodiment. Detailed implementation manners
[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.
[0030] As Figures 1 to 7 shown, the present invention relates to an adjustable paper virtual cutting device, and its main purpose is to improve the flexibility and accuracy of paper cutting to meet the production requirements of different specifications of paper. The device mainly includes an installation frame 1 (composed of components such as an upper installation plate and a lower installation plate), and a main shaft 2 and a secondary shaft 3 provided on the installation frame 1. The main shaft 2 is rotationally connected to the installation frame 1 through a bearing. On the main shaft 2, a driving device 4 is connected, and this device is responsible for driving the main shaft 2 to rotate, thereby driving the work of the cutting assembly.
[0031] A plurality of (one or more) tool holders 21 are provided on the main shaft 2, and serrated virtual cutting knives 22 are installed on each tool holder. In order to meet the cutting requirements of different paper thicknesses and materials, a first adjustment structure is configured between the main shaft 2 and the tool holder 21, and this structure can flexibly adjust the height of the tool holder 21 so that it can align with the paper surface to ensure the balance of cutting depth and quality.
[0032] A pressing seat 31 is provided on the secondary shaft 3. The function of the pressing seat 31 is to stabilize the paper and cooperate with the virtual cutting knife 22 to achieve the paper cutting operation. According to different cutting requirements, the pressing seat 31 can be equipped with a rubber-coated cylinder 32 or a knife groove 33. The rubber-coated cylinder 32 enables the virtual cutting knife 22 to have good support and buffering during the cutting process, reducing damage to the paper. The knife groove 33 provides a more efficient cutting method to ensure that the virtual cutting knife 22 can smoothly enter the groove during cutting, thereby reducing the loss of consumables.
[0033] In order to better meet the cutting requirements of different specifications of paper, a second adjustment structure is also provided between the secondary shaft 3 and the pressing seat 31. This structure enables the operator to flexibly adjust the height of the pressing seat 31 according to specific cutting needs to ensure that the contact pressure between the virtual cutting knife 22 and the paper is just right.
[0034] In summary, the application of the first adjustment structure and the second adjustment structure enables the positions of the virtual cutting knife 22 and the rubber-coated cylinder 32 or the knife groove 33 to be adjusted flexibly. This design greatly improves the adaptability of the equipment during the cutting process, enabling it to adjust the cutting depth and position according to different specifications of the paper, thereby ensuring the consistency and reliability of the cutting effect. At the same time, this adjustable paper virtual cutting device significantly improves production efficiency and reduces material waste.
[0035] Embodiment 1:
[0036] As Figures 1 - 3 shown in Embodiment 1 of the present utility model, Embodiment 1 shows the specific structure and function of an adjustable paper virtual cutting device. In this embodiment, a rubber-coated cylinder 32 is provided on the pressing seat 31, and the rubber-coated cylinder can effectively support and protect the paper during the cutting process. The secondary shaft 3 is fixed on the mounting frame 1, and the rubber-coated cylinder 32 is connected to the pressing seat 31 through a bearing.
[0037] The first adjustment structure specifically includes a first central hole provided on the tool holder 21, such that the tool holder 21 is sleeved on the main shaft 2. At the same time, a setscrew (not shown in the figure) for locking the two is also provided between the tool holder 21 and the main shaft 2 to ensure that the position of the tool holder does not move unexpectedly during the cutting process. When it is necessary to adjust the height and circumferential position of the tool holder 21, only need to loosen the setscrew first, then adjust the height of the tool holder 21 up and down, and finally lock the setscrew again. In addition, a first keyway and key structure 23 (usually including a keyway and a key) is also designed between the tool holder and the main shaft to limit the relative rotation between the tool holder and the main shaft.
[0038] The second adjustment structure specifically includes a second central hole provided on the pressing seat 31, such that the pressing seat 31 can be sleeved on the secondary shaft 3. In addition, retaining rings 34 are provided at the upper and lower ends of the pressing seat 31, and these retaining rings are also sleeved on the secondary shaft 3, and the pressing seat 31 is firmly fixed on the secondary shaft 3 through locking screws (not shown in the figure). When adjusting the height and circumferential position of the pressing seat 31, it is necessary to lock the screws first before adjusting.
[0039] The adjustment of the horizontal position of the secondary shaft 3 is also considered. Adjustable connection structures are provided between the upper and lower ends of the secondary shaft 3 and the mounting frame 1 respectively. This structure includes a slotted hole 36 provided on the mounting frame 1 and a set screw (not shown in the figure) that cooperates with the slotted hole. Through this adjustable connection design, the operator can conveniently adjust the horizontal position of the secondary shaft 3 to meet the cutting requirements of different specifications of paper.
[0040] The driving device specifically includes a motor 41, and the output shaft of the motor is connected to the main shaft 2 through a gear transmission mechanism 42. The gear transmission mechanism 42 is composed of a gear set consisting of several gears. This design can effectively transmit the power of the motor to the main shaft 2, thereby ensuring the efficient rotation of the virtual cutting knife 22.
[0041] Embodiment 1 of the present utility model realizes high efficiency, stability and flexibility in the paper cutting process, meeting the high requirements for cutting accuracy and efficiency in modern paper product production.
[0042] Embodiment 2:
[0043] As Figures 3 - 7 shown in Embodiment 2 of the present utility model, the main difference from Embodiment 1 above is that: in this embodiment, a knife groove 33 is provided on the pressing seat 31 instead of the rubber-coated cylinder 32. This change aims to optimize the cutting process and reduce the consumption of consumables.
[0044] In Embodiment 1, the way of cutting paper by the cooperation of the rubber-coated cylinder 32 and the virtual cutting knife 22 is that the blade of the virtual cutting knife 22 presses against the outer side wall of the rubber-coated cylinder 32. Although this design can effectively cut paper, since the rubber-coated cylinder is a consumable, it will be continuously worn during use and needs to be replaced regularly, increasing the maintenance cost and operation complexity. In Embodiment 2 of the present utility model, a cooperation design of the knife groove 33 and the virtual cutting knife 22 is adopted, and when the virtual cutting knife 22 cuts paper, its blade directly inserts into the knife groove 33. This design can not only cut paper smoothly, but also effectively avoid the problem of consumable loss caused by using the rubber-coated cylinder, significantly improving the economy and practicability of the equipment.
[0045] Furthermore, the secondary shaft 3 is also rotatably connected to the mounting frame 1 through a bearing, and the second adjustment structure includes a second central hole provided on the pressing seat 31 and capable of sleeving on the secondary shaft 3. In addition, a set screw (for locking the two) and a second keyway key bar structure 35 (for restricting the relative rotation of the two) are provided between the pressing seat 31 and the secondary shaft 3. This design ensures the stability and adjustability of the pressing seat 31 during the working process, facilitating height adjustment according to different cutting requirements.
[0046] Furthermore, the driving device 4 includes a motor 41, a first pulley 43 and a second pulley 44 rotatably connected to the mounting frame 1. A synchronous belt transmission mechanism is provided between the motor 41, the first pulley 43 and the second pulley 44. Conjugate gear transmission mechanisms are provided between the first pulley 43 and the main shaft 2, and between the second pulley 44 and the secondary shaft 3. And an elliptical gear transmission mechanism for intermittent meshing and separation is provided between the main shaft 2 and the secondary shaft 3. Among them, the elliptical gear transmission mechanism is to ensure the synchronization of the virtual cutting knife 22 and the knife groove 33.
[0047] Further, the elliptical gear transmission mechanism includes a first elliptical gear 471 provided at the lower end of the main shaft 2 or a second elliptical gear 472 provided at the lower end of the secondary shaft 3. The main shaft 2 is at the focus of the first elliptical gear 471, and the secondary shaft 3 is at the focus of the second elliptical gear 472. Moreover, the first elliptical gear 471 and the second elliptical gear 472 can intermittently mesh and disengage. This design ensures that during the cutting operation, the virtual cutting blade 22 and the blade groove 33 can achieve precise synchronous cutting, guaranteeing a stable cutting effect of the paper.
[0048] Further, the conjugate gear transmission mechanism includes a third elliptical gear 461 provided on the first pulley 43 or a fourth elliptical gear 462 provided on the second pulley 44. The third elliptical gear 461 and the first elliptical gear 471 mesh with each other and form a conjugate gear pair, and the fourth elliptical gear 462 and the second elliptical gear 472 mesh with each other and form a conjugate gear pair. The function of the two conjugate gear pairs is to stably transmit the power of the synchronous pulley to the first elliptical gear 471 and the second elliptical gear 472 respectively.
[0049] Further, the synchronous belt transmission mechanism includes a driving wheel 451 provided on the output shaft of the motor 41 and a synchronous belt 452 connected between the driving wheel 451, the first pulley 43, and the second pulley 44. This synchronous belt ensures stable power transmission and minimizes power loss to the greatest extent.
[0050] Further, a swing-type tension roller 5 for adjusting the paper tension is also provided on the mounting frame 1. The swing-type tension roller 5 includes a main roller 51. Two swing arms 52 are provided on the main roller 51. A secondary roller 53 that can rotate around the main roller 51 is provided between the two swing arms 52. Fasteners (such as screws) are provided between the swing arms 52 and the main roller 51. The swing-type tension roller 5 can adjust the tension according to the actual situation, thereby further improving the accuracy and effect of paper cutting.
Claims
1. An adjustable paper virtual cutting device, characterized in that: It includes a mounting bracket (1), a main shaft (2) and a secondary shaft (3) provided thereon. A driving device (4) for driving the rotation of the main shaft (2) is connected to the main shaft (2). A plurality of tool holders (21) are provided on the main shaft (2). Serrated virtual cutting tools (22) are provided on the tool holders (21). A first adjusting structure for adjusting the height of the tool holder (21) is provided between the main shaft (2) and the tool holder (21). A pressing seat (31) is provided on the secondary shaft (3). A rubber-coated cylinder (32) or a tool groove (33) capable of cooperating with the virtual cutting tool (22) to cut paper is provided on the pressing seat (31). A second adjusting structure for adjusting the height of the pressing seat (31) is provided between the secondary shaft (3) and the pressing seat (31).
2. The adjustable paper virtual cutting device according to claim 1, characterized in that: The first adjusting structure includes a first central hole provided on the tool holder (21) and capable of sleeving on the main shaft (2), a setscrew provided between the tool holder (21) and the main shaft (2) for locking the two, and a first keyway and key structure (23) for restricting the relative rotation of the two.
3. An adjustable paper virtual cutting device according to claim 1, characterized in that: When the rubber-coated cylinder (32) rotatably connected thereto is provided on the pressing seat (31), the second adjusting structure includes a second central hole provided on the pressing seat (31) and capable of sleeving on the secondary shaft (3), and retaining rings (34) provided at the upper and lower ends of the pressing seat (31). The retaining rings (34) are sleeved on the secondary shaft (3), and a locking screw for locking the two is provided between the two.
4. An adjustable paper virtual cutting device according to claim 1, characterized in that: When the tool groove (33) is provided on the pressing seat (31), the second adjusting structure includes a second central hole provided on the pressing seat (31) and capable of sleeving on the secondary shaft (3), a setscrew provided between the pressing seat (31) and the secondary shaft (3) for locking the two, and a second keyway and key structure (35) for restricting the relative rotation of the two.
5. An adjustable paper virtual cutting device according to claim 3, characterized in that: Adjustable connection structures for adjusting the horizontal position of the secondary shaft (3) are provided between the upper end of the secondary shaft (3) and the mounting bracket (1) and between the lower end of the secondary shaft (3) and the mounting bracket (1). The adjustable connection structure includes a strip hole (36) provided on the mounting bracket (1), and a set screw installed in the corresponding strip hole (36) and threadedly connected to the upper end or the lower end of the secondary shaft (3).
6. The adjustable paper virtual cutting device according to claim 1, wherein: When the rubber-coated cylinder (32) sleeved on the secondary shaft (3) and capable of rotating is provided on the pressing seat (31), the driving device (4) includes a motor (41), and a gear transmission mechanism (42) is provided between the output shaft of the motor (41) and the main shaft (2).
7. An adjustable paper virtual cutting device according to claim 1, characterized in that: When the tool groove (33) is provided on the pressing seat (31), the driving device (4) includes a motor (41), a first pulley (43) and a second pulley (44) rotatably connected to the mounting bracket (1). A synchronous belt transmission mechanism is provided between the motor (41), the first pulley (43) and the second pulley (44). Conjugate gear transmission mechanisms are provided between the first pulley (43) and the main shaft (2) and between the second pulley (44) and the secondary shaft (3). An elliptical gear transmission mechanism for intermittent meshing and separation is provided between the main shaft (2) and the secondary shaft (3).
8. An adjustable paper virtual cutting device according to claim 7, characterized in that: The elliptical gear transmission mechanism includes a first elliptical gear (471) provided at the lower end of the main shaft (2), or a second elliptical gear (472) provided at the lower end of the secondary shaft (3). The main shaft (2) is at the focus of the first elliptical gear (471), and the secondary shaft (3) is at the focus of the second elliptical gear (472). Moreover, the first elliptical gear (471) and the second elliptical gear (472) can intermittently mesh and disengage.
9. The adjustable paper virtual cutting device according to claim 8, characterized in that: The conjugate gear transmission mechanism includes a third elliptical gear (461) provided on the first pulley (43), or a fourth elliptical gear (462) provided on the second pulley (44). The third elliptical gear (461) and the first elliptical gear (471) mesh with each other to form a conjugate gear pair, and the fourth elliptical gear (462) and the second elliptical gear (472) mesh with each other to form a conjugate gear pair.
10. An adjustable paper virtual cutting device according to claim 7, characterized in that: The mounting bracket (1) is further provided with a swing-type tension roller (5) for adjusting the paper tension. The swing-type tension roller (5) includes a main roller (51). There are two upper and lower swing arms (52) provided on the main roller (51). A secondary roller (53) capable of rotating around the main roller (51) is provided between the two swing arms (52). A fastener is provided between the swing arm (52) and the main roller (51).