A bidirectional cutting device and a digital printing equipment
By designing a bidirectional cutting device, the cutting of roll materials can be carried out simultaneously in the first and second directions during the production process. This solves the problems of numerous cutting processes, high operational difficulty, and long production cycles in the existing technology, thereby improving production efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RUNTIANZHI DIGITAL EQUIP
- Filing Date
- 2025-06-21
- Publication Date
- 2026-07-31
AI Technical Summary
The current production process for roll materials suffers from numerous cutting steps, high operational difficulty, long production cycle, low efficiency, and high cost.
Design a bidirectional cutting device, including a vertical plate, a guide plate, a pressing plate, a first cutting assembly, and a second cutting assembly, which can simultaneously cut in the first and second directions during the production of roll materials, simplifying the cutting process and improving efficiency.
This technology enables direct cutting and rewinding of printing media after production, simplifying subsequent processes, reducing operational difficulty, improving production efficiency, and saving the cost of specialized equipment.
Smart Images
Figure CN224577739U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of material cutting devices, and particularly relates to a bidirectional cutting device and digital printing equipment. Background Technology
[0002] In existing roll-to-roll material production processes, to improve production efficiency, roll-to-roll materials are typically fed directly for continuous production. After production, the materials are rolled into individual rolls, which are then taken out and sent to a cutting process to cut and package the processed materials into the final product. For example, but not limited to, the printing production of existing roll-to-roll printing media, the roll-to-roll printing media is usually installed on a feeding device and continuously fed to the printing equipment for continuous printing operations. After printing, the printing media is rolled into large rolls by a take-up roller, and then the rolls are transported to a dedicated cutting device for cutting and packaging into the final product. This production and cutting method results in high operational difficulty. The rolled material is extremely heavy, requiring specialized equipment to transport it to a dedicated cutting device for reloading, cutting, and reloading and packaging into the final product. This method results in numerous process steps, high operational difficulty, and requires a large amount of manpower and resources, leading to a longer production cycle, lower production efficiency, and increased labor and material costs. Utility Model Content
[0003] The bidirectional cutting device provided by this utility model aims to solve the problems of numerous cutting process steps, high operational difficulty, resulting in long production cycles, low production efficiency, and increased labor and material costs in the existing technology.
[0004] This utility model is implemented as follows: a bidirectional cutting device, applied to the cutting of rolled materials, is located between the output end and the take-up roller in the production and processing of rolled materials, characterized by comprising:
[0005] The uprights are provided in two pieces, with the two uprights spaced apart.
[0006] A guide fabric component, with its two ends respectively fixed to the two upright plates, is used to wind the printing medium.
[0007] A pressing component is disposed on the two upright plates and spaced apart from the guiding component to form a preset channel through which the printing medium passes;
[0008] A first cutting blade assembly is disposed on the pressing member and includes a first cutter capable of cutting the printing medium in a first direction, wherein the first direction is parallel to the conveying direction of the printing medium;
[0009] A pressure cutting component is movably disposed on the two upright plates to press the printing medium when cutting it in a second direction, wherein the second direction is perpendicular to the conveying direction of the printing medium.
[0010] The second cutting assembly is movably disposed on the fabric cutting member along the line connecting the two uprights. The second cutting assembly includes a second cutting blade. When cutting is required, the fabric cutting member moves toward the printing medium and presses the printing medium, the second cutting blade moves to the cutting position, and the second cutting assembly moves along the line connecting the uprights to cut the printing medium in the second direction.
[0011] Furthermore, the first cutter is retractable relative to the printing medium; when cutting is required, the first cutter extends into the printing medium and moves to the cutting position.
[0012] Furthermore, the first cutting blade assembly is movably disposed on the pressing fabric member along the line connecting the two upright plates, and the first cutting blade assembly can be moved along the line connecting the two upright plates and then locked in the current position.
[0013] Furthermore, the pressing component is provided with a first slide rail, the two ends of the first slide rail extending toward the two upright plates respectively, the first cutter assembly is movably disposed on the first slide rail, and the first slide rail is provided with a first locking component that locks the first cutter assembly after the first cutter assembly moves.
[0014] Furthermore, the first cutting blade assembly is located on the side of the pressing member opposite to the guiding member, and the pressing member is provided with a first clearance groove for the first cutting blade to pass through.
[0015] Furthermore, the first cutting blade assembly also includes:
[0016] The first cutter holder is movably mounted on the guide cloth component;
[0017] The movable component is movably disposed within the first blade holder relative to the printing medium, either away from or close to it. The first cutter is disposed on the first blade holder facing the printing medium, with one end extending into the first blade holder and fixed to the movable component.
[0018] A first locking member is disposed on the first blade holder and passes through the first blade holder to abut against the movable member. After the movable member drives the first cutter to extend or retract, the first locking member presses the movable member.
[0019] Furthermore, the first cutter holder is provided with a through groove communicating with the outside, and the groove wall is provided with a limiting part. The movable member is movably disposed in the through groove. One end of the first cutter extends into the through groove and is fixed to the movable member. When the movable member moves in the direction of the first cutter, it can abut against the limiting part. The end of the movable member away from the first cutter is provided with a pulling member, and the pulling member extends out of the first cutter holder from the through groove.
[0020] Furthermore, the second cutter is fixed on the second cutter assembly, and initially, the second cutter assembly is placed on the fabric cutting member outside the printing medium area.
[0021] Furthermore, the second cutter assembly is located on the side of the fabric cutting member away from the fabric guide member, and the fabric cutting member is provided with a second clearance groove for the second cutter to pass through, the length of the second clearance groove being greater than the width of the printing medium in the second direction.
[0022] Furthermore, the fabric cutting component is provided with a second slide rail, the two ends of the second slide rail extend toward the two upright plates respectively and beyond the printing medium, the second cutter assembly is movably disposed on the second slide rail, and the second slide rail is provided with a second locking component that locks the second cutter assembly after the second cutter assembly moves.
[0023] Furthermore, the second cutter assembly also includes a second cutter holder, which is movably disposed on the fabric cutting member, and the second cutter is fixedly disposed on the side of the second cutter holder facing the printing medium.
[0024] Furthermore, the bidirectional cutting device also includes a driving component, which is disposed on the upright plate. The driving end of the driving component is connected and fixed to the fabric pressing and cutting component. The driving component drives the fabric pressing and cutting component to move toward the printing medium and press the printing medium.
[0025] Furthermore, the pressing element is adjustablely disposed on the upright plate, and the pressing element can move toward or away from the guide element to adjust the gap of the preset channel.
[0026] Furthermore, the pressing component has sliding parts at both ends, and the upright plate has a sliding groove that extends toward the guiding component. The sliding parts are placed in the sliding groove and can move within the sliding groove. The pressing component is detachably connected to the upright plate.
[0027] Furthermore, the bidirectional cutting device also includes a connector and a limiting member. The upright plate is provided with a first connecting part, and the pressing member is provided with a second connecting part corresponding to the first connecting part. The connector passes through the first connecting part and the second connecting part in sequence to detachably connect the two. The limiting member passes through the second connecting part and abuts against the first connecting part.
[0028] Furthermore, the pressing member is located on the front side of the guiding member, and the pressing and cutting member is located on the bottom side of the pressing member.
[0029] Furthermore, the guide fabric component is provided with a first cutting groove for the first cutter to extend into and a second cutting groove for the second cutter to extend into.
[0030] This utility model also provides a digital printing device, including:
[0031] Printing platform;
[0032] A discharge roller is located at the discharge end of the printing platform;
[0033] A take-up roller is located behind the discharge end; and
[0034] As described above, the bidirectional cutting device is located between the output roller and the take-up roller. The printing medium is conveyed from the printing platform to the output roller and sequentially wound around the output roller, the guide cloth of the bidirectional cutting device, and the take-up roller.
[0035] The beneficial effects achieved by this utility model are as follows: by setting up a guide cloth component to provide a cutting platform for cutting the printing medium, and a first cutter assembly to cut the printing medium in a first direction, the printing medium can be directly cut at the dividing line between multiple printed images on the printing medium as needed after printing and before the printing medium is rewound. A preset channel for the printing medium to pass through is formed between the pressure cloth component and the guide cloth component, so that when the printing medium is cut in the first direction, the continuous printing medium divided into multiple pieces in the conveying direction will not fold, misalign or shift with each other, thereby improving the cutting effect. A second cutter assembly is set up to cut the printing medium in a second direction, so that after the rewinding roller reaches its maximum take-up capacity, the printing medium can be cut off, making it easy to replace the new rewinding roller. This design scheme achieves simultaneous cutting of the printing medium in both the first and second directions, enabling final segmentation directly after printing medium production and before rewinding. This eliminates the need for subsequent steps, such as in existing technologies where, after printing multiple images simultaneously, the medium is rewound and then cut into sections in the first direction using specialized equipment based on the dividing lines between different images. This simplifies subsequent processes, reduces processing difficulty, improves production efficiency, and saves on the cost of specialized equipment. Attached Figure Description
[0036] Figure 1 This is a structural diagram of a digital printing device provided by this utility model;
[0037] Figure 2 Figure 1 A magnified view of a portion of the image;
[0038] Figure 3 This is a three-dimensional structural diagram of a bidirectional cutting device provided by this utility model;
[0039] Figure 4 This is another perspective view of the three-dimensional structure of the bidirectional cutting device provided by this utility model;
[0040] Figure 5 This is a cross-sectional view of the first cutting component of a bidirectional cutting device provided by this utility model;
[0041] Figure 6 This is a frontal three-dimensional structural diagram of a bidirectional cutting device provided by this utility model;
[0042] Figure 7 yes Figure 2 Enlarged view of point A in the middle;
[0043] Figure 8 yes Figure 2 Enlarged view of point B in the middle.
[0044] Explanation of icon numbers:
[0045] 1. Upright plate; 11. Slide groove; 12. First connecting part; 2. Fabric guide; 21. First cutting groove; 22. Second cutting groove; 3. Fabric pressing part; 31. Sliding part; 32. Second connecting part; 33. First clearance groove; 34. First slide rail; 341. First locking assembly; 3411. First slider; 3412. Second locking part; 4. First cutter assembly; 41. First cutter; 42. First cutter holder; 421. Through groove; 4211. Limiting part; 43. Movable part; 44. First locking component; 45. Pulling component; 5. Fabric cutting component; 51. Second slide rail; 511. Second locking assembly; 5111. Second slider; 5112. Third locking component; 52. Second clearance groove; 6. Second cutting blade assembly; 61. Second cutting blade; 62. Second blade holder; 7. Connecting component; 8. Limiting component; 9. Driving component; 100. Printing platform; 200. Feed roller; 300. Take-up roller; 400. Bidirectional cutting device; 500. Printing medium. Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages 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.
[0047] See Figures 1-3 This utility model provides a bidirectional cutting device 400, which is used for cutting roll materials and is located between the output end and the take-up roller 300 in the production and processing of roll materials. The bidirectional cutting device 400 includes a vertical plate 1, a guide piece 2, a pressing piece 3, a first cutting assembly 4, a pressing and cutting piece 5, and a second cutting assembly 6. The device comprises two upright plates 1, spaced apart. Two ends of a guide fabric member 2 are fixed to the two upright plates 1. The guide fabric member 2 is used to wind the printing medium 500 to provide a cutting platform for the bidirectional cutter device 400. A pressing fabric member 3 is disposed on the two upright plates 1 and spaced apart from the guide fabric member 2 to form a preset channel for the printing medium 500 to pass through, ensuring that the printing medium is not folded or misaligned in the second direction when cut in the first direction. A first cutter assembly 4 is disposed on the pressing fabric member 3 and includes a first cutter 41 capable of cutting the printing medium 500 in the first direction. The first cutter 41 can cut the printing medium 500 in the first direction or not, as needed. The first direction is parallel to the transport direction of the printing medium 500, i.e., in multi-image printing tasks. Multiple images can be segmented simultaneously. The pressure cutting component 5 is movably mounted on the two upright plates 1 towards the printing medium 500 to press the printing medium 500 when cutting it in the second direction. The second direction is perpendicular to the conveying direction of the printing medium 500. That is, when the winding roller 300 reaches a large capacity for winding the printing medium, the second cutting component 6 cuts the printing medium 500 to replace the new winding roller 300 to continue winding the printing medium. The second cutting component 6 is movably mounted on the pressure cutting component 5 along the line connecting the two upright plates 1. When cutting is required, the pressure cutting component 5 moves towards the printing medium 500 and presses it. The second cutter 61 moves to the cutting position, and the second cutting component 6 moves along the line connecting the upright plates 1 to cut the printing medium 500 in the second direction.
[0048] By setting the guide cloth component 2 to provide a cutting platform for cutting the printing medium 500, and the first cutter assembly 4 to cut the printing medium 500 in the first direction, the printing medium 500 can be directly cut at the dividing line between multiple printed images on the printing medium 500 as needed after printing and before the printing medium 500 is rewound. A preset channel for the printing medium 500 to pass through is formed between the pressure cloth component 3 and the guide cloth component 2, so that when the printing medium 500 is cut in the first direction, the continuous printing medium 500 divided into multiple pieces in the conveying direction will not fold, misalign or shift, thereby improving the cutting effect. The second cutter assembly 6 is set to cut the printing medium 500 in the second direction, so that after the take-up roller 300 reaches the maximum take-up capacity, the printing medium 500 can be cut, which facilitates the replacement of a new take-up roller 300. This design scheme achieves simultaneous cutting of the printing medium 500 in both the first and second directions, enabling final segmentation directly after the printing medium 500 is produced and before rewinding. This eliminates the need for subsequent processes, such as in existing technologies where, after printing multiple images simultaneously, the rewind roller 300 rewinds the medium to a full roll and then uses specialized equipment to further segment and cut the medium 500 along the first direction based on the dividing lines between different images. This simplifies subsequent processes, reduces processing difficulty, improves production efficiency, and saves on the cost of specialized equipment.
[0049] Working principle: In use, the first cutter assembly 4 is set on the pressing cloth 3 at the corresponding position of the printing medium 500 where it needs to be cut in the first direction. Initially, the first cutter 41 can be set at the cutting position of the printing medium 500. After the printing medium 500 is printed, it moves along the conveying direction. The first cutter 41 directly divides the printing medium 500 into multiple continuous pieces of printing medium 500, which are then wound up by the take-up roller 300 to form at least two rolls of printing medium 500 on the take-up roller 300. Alternatively, the first cutter 41 can be set at a cutting position other than that of the printing medium 500. That is, when cutting is required, the first cutter 41 is moved to the cutting position of the printing medium 500. In this way, cutting in the first direction can be achieved during the production process of the printing medium 500. When the take-up roller 300 has fully wound up a roll, the second cutter assembly 6 is moved along the second direction, and the second cutter 61 cuts the printing medium 500, thereby achieving cutting of the printing medium 500 in the first direction and / or the second direction.
[0050] The bidirectional cutting device 400 provided by this utility model can cut the printing medium 500 in the first direction and / or the second direction as needed after the printing medium 500 is produced and before it is rewound. This enables integrated production of cutting and rewinding after printing, simplifies the cutting process, and eliminates the need to remove the printing medium 500 from the rewind roller 300 after printing and then perform a separate cutting operation, thus shortening the production cycle and improving production efficiency.
[0051] Furthermore, the first cutter 41 is retractable relative to the printing medium 500. When cutting is required, the first cutter 41 extends towards the printing medium 500 and moves to the cutting position. In this way, the entire first cutter assembly 4 can be fixedly set, and the first cutter 41 can be switched between the non-cutting position and the cutting position simply by retracting the first cutter 41. This can meet the cutting or non-cutting requirements of the printing medium 500 in the first direction. For example, when the image printed on the current printing medium 500 does not need to be cut (this can be, but is not limited to, single image printing), the first cutter 41 can be retracted to the non-cutting position. This can accommodate the production needs of different printing media 500 and has a wider range of applications.
[0052] Furthermore, the first cutter assembly 4 is movably mounted on the pressing cloth component 3 along the line connecting the two upright plates 1. After moving along the line connecting the two upright plates 1, the first cutter assembly 4 is locked in the current position. In this way, the first cutter assembly 4 can be moved accordingly to the required cutting boundary position according to the printing needs of different printing media 500, so as to accurately align with the cutting line position of the printing media and maintain the current position. During the conveying process after the printing media 500 is printed, the printing media 500 can be cut in the first direction, thereby adapting to the production needs of more different printing media 500. The telescopic setting of the first cutter 41 allows the first cutter 41 to be retracted when the first cutter assembly 4 is moved to avoid the cutter scratching the printing media 500 when adjusting the position of the first cutter assembly 4.
[0053] Specifically, the number of first cutting blade components 4 can be set according to actual needs. That is, when N cuts are required in the first direction during the printing job, n first cutting blade components 4 are set accordingly. For example, when printing multiple images on printing medium 500 and each image is cut separately, a first cutting blade component 4 is set on the dividing line between two adjacent images. In addition, a first cutting blade component 4 can be set on the cutting line required when cutting in pairs. The number of images between two cutting lines is not limited here.
[0054] In this embodiment, there are two first cutter components 4.
[0055] See Figure 4Furthermore, the pressing component 3 is provided with a first slide rail 34, the two ends of the first slide rail 34 extending toward the two upright plates 1 respectively, so that the first slide rail 34 can provide space for the first cutter assembly 4 to move between the two upright plates 1. The first cutter assembly 4 is movably mounted on the first slide rail 34. The first slide rail 34 is provided with a first locking component 341 that locks the first cutter assembly 4 after it moves. The first locking component 341 keeps the first cutter assembly 4 in its current position without moving.
[0056] See Figure 4 Specifically, the first locking component 341 includes a first slider 3411 slidably disposed on the first slide rail 34 and a second locking member 3412 passing through the first slide rail 34 and abutting against the first slider 3411. The first cutter component 4 is fixedly disposed on the first slider 3411. When the first slider 3411 moves on the first slide rail 34, it can drive the first cutter component 4 to move. By adjusting the abutting force between the second locking member 3412 and the first slider 3411, the first slider 3411 can be locked or unlocked, thereby locking or unlocking the first cutter component 4 at the current position. In this embodiment, the second locking member 3412 can be a screw, and the screw can be screwed in or out to adjust the abutting force between it and the first slider 3411.
[0057] See Figure 4 Furthermore, the first cutter assembly 4 is located on the side of the pressing member 3 opposite to the guide member 2, and the pressing member 3 is provided with a first clearance groove 33 for the first cutter 41 to pass through. In this way, the first cutter assembly 4 and the guide member 2 can be located in the same horizontal space, which can reduce the vertical space occupied, and make the bidirectional cutter device 400 miniaturized and occupy less space in the use environment.
[0058] See Figures 4-5Specifically, the first cutter assembly 4 also includes a first cutter holder 42, a movable member 43, and a first locking member 44. The first cutter holder 42 is movably disposed on the guide cloth member 2 (i.e., the first cutter holder 42 is fixed on the first slider 3411 mentioned above). The movable member 43 is movably disposed in the first cutter holder 42 relative to the printing medium 500, either away from or close to it. The first cutter 41 is disposed on the first cutter holder 42 facing the printing medium 500, and one end extends into the first cutter holder 42 and is fixed to the movable member 43. The first locking member 44 is disposed on the first cutter holder 42 and passes through the first cutter holder 42 to abut against the movable member 43. After the movable member 43 drives the first cutter 41 to extend or retract, the first locking member 44 presses against the movable member 43. Thus, by moving the movable member 43, the first cutter 41 can extend or retract relative to the printing medium 500. The first locking member 44 can adjust the abutment force with the movable member 43, thereby locking or unlocking the first movable member 43. In this embodiment, the first locking member 44 can be a screw. By screwing the screw in or out, the contact force between it and the movable member 43 can be adjusted.
[0059] See Figure 5 Furthermore, the first cutter holder 42 is provided with a through groove 421 communicating with the outside. The groove wall of the through groove 421 is provided with a limiting part 4211. The movable member 43 is movably disposed in the through groove 421. One end of the first cutter 41 extends into the through groove 421 and is fixed to the movable member 43. When the movable member 43 moves toward the first cutter 41, it can abut against the limiting part 4211. The end of the movable member 43 away from the first cutter 41 is provided with a pulling member 45. The pulling member 45 extends out of the through groove 421 from the first cutter 41 holder. The pulling member 45 can drive the movable member 43 to move in the through groove 421 to drive the extension and retraction of the first cutter 41. The limiting member 8 can prevent the first cutter 41 from disengaging from the first cutter holder 42.
[0060] See Figure 3 Furthermore, the second cutter 61 is fixed on the second cutter assembly 6, so that the second cutter 61 can be moved to the cutting position in the second direction by the fabric pressing and cutting member 5. This simplifies the structure of the second cutter assembly 6 and saves costs. Initially, the second cutter assembly 6 is placed on the fabric pressing and cutting member 5 outside the printing medium 500 area. This allows the second cutter assembly 6 to be located at the cutting start end in the second direction when the fabric pressing and cutting member 5 moves the second cutter 61 to the cutting position. By moving the second cutter assembly 6 along the second direction, the printing medium 500 can be cut.
[0061] See Figure 3Furthermore, the second cutter assembly 6 is located on the side of the fabric cutting member 5 opposite to the fabric guide member 2. The fabric cutting member 5 has a second clearance groove 52 through which the second cutter 61 passes. The length of the second clearance groove 52 is greater than the width of the printing medium 500 in the second direction. Thus, initially, the second cutter assembly 6 can be located at the end of the second clearance groove 52 to ensure that the second cutter assembly 6 is outside the range of the printing medium 500.
[0062] See Figure 3 Furthermore, the fabric cutting component 5 is provided with a second slide rail 51. The two ends of the second slide rail 51 extend toward the two upright plates 1 and beyond the printing medium 500, so that the second cutter assembly 6 can be moved outside the range of the printing medium 500. The second cutter assembly 6 is movably mounted on the second slide rail 51. The second slide rail 51 is provided with a second locking component 511 that locks the second cutter assembly 6 after it moves. The second locking component 511 allows the second cutter assembly 6 to remain outside the range of the printing medium 500 without cutting the printing medium 500.
[0063] See Figure 3 Specifically, the second locking component 511 includes a second slider 5111 slidably mounted on the second slide rail 51 and a third locking member 5112 passing through the second slide rail 51 and abutting against the second slider 5111. The second cutter component 6 is fixedly mounted on the second slider 5111. When the second slider 5111 moves on the second slide rail 51, it can drive the second cutter component 6 to move. By adjusting the abutting force between the third locking member 5112 and the second slider 5111, the second slider 5111 can be locked or unlocked, thereby locking or unlocking the second cutter component 6. In this embodiment, the third locking member 5112 can be a screw, and the screw can be screwed in or out to adjust the abutting force between it and the second slider 5111.
[0064] See Figure 3 Specifically, the second cutter assembly 6 also includes a second cutter holder 62, which is movably mounted on the fabric cutting member 5 (i.e., on the second slide rail 51, specifically fixed on the first slider 3411 of the first slide rail 34). The second cutter 61 is fixed on the side of the second cutter holder 62 facing the printing medium 500. When the fabric cutting member 3 moves toward the printing medium 500, the second cutter 61 is moved to the cutting position by the second cutter holder 62.
[0065] See Figure 3 , Figure 6Furthermore, the bidirectional cutting device 400 also includes a driving component 9, which is mounted on the upright plate 1. The driving end of the driving component 9 is connected and fixed to the fabric cutting component 5. The driving component 9 drives the fabric cutting component 5 to move towards the printing medium 500 and press the printing medium 500. In this embodiment, two driving components 9 can be provided, each mounted on one upright plate 1. Both ends of the fabric cutting component 5 are connected to the driving end of the driving component 9, which facilitates the installation of the driving component 9 and enables the fabric cutting component 5 to move smoothly. In this embodiment, the driving component 9 can be, but is not limited to, a cylinder.
[0066] Furthermore, the pressing component 3 is adjustablely mounted on the upright plate 1. The pressing component 3 can move toward or away from the guiding component 2 to adjust the gap of the preset channel. This allows it to adapt to the production and processing of printing media 500 of different thicknesses, improves the compatibility of the device, and makes the range of applications wider.
[0067] See Figure 6 Specifically, the pressing component 3 has sliding parts 31 at both ends, and the upright plate 1 has a sliding groove 11 extending in the direction of the guiding component 2. The sliding parts 31 are placed in the sliding groove 11 and can move within the sliding groove 11. The pressing component 3 and the upright plate 1 are detachably connected. When it is necessary to adjust the gap of the preset channel, the pressing component 3 and the upright plate 1 are disassembled. By pushing the pressing component 3, the sliding parts 31 can move along the sliding groove 11. After moving to the desired position, the pressing component 3 and the upright plate 1 are connected and fixed.
[0068] Specifically, the sliding part 31 can be a roller, which can reduce the friction between the sliding part 31 and the groove 11, making the adjustment of the pressing cloth part 3 easier.
[0069] See Figure 3 Specifically, the bidirectional cutting device 400 also includes a connector 7 and a limiting member 8. The upright plate 1 is provided with a first connecting part 12, and the pressing cloth part 3 is provided with a second connecting part 32 corresponding to the first connecting part 12. The connector 7 passes through the first connecting part 12 and the second connecting part 32 in sequence to detachably connect the two. The limiting member 8 passes through the second connecting part 32 and abuts against the first connecting part 12. The connector 7 is used to connect the upright plate 1 and the guiding cloth part 2, and the limiting member 8 is used to limit the first connecting part 12 and the second connecting part 32 in the direction of their connection line to prevent the pressing cloth part 3 from moving.
[0070] See Figure 2 , Figure 7 and Figure 8Furthermore, the guide cloth component 2 is provided with a first cutting groove 21 into which the first cutter 41 extends and a second cutting groove 22 into which the second cutter 61 extends. The first cutting groove 21 and the second cutting groove 22 can, on the one hand, prevent the first cutter 41 and the second cutter 61 from scratching the surface of the guide cloth component 2 when cutting the printing medium 500, and on the other hand, allow the first cutter 41 and the second cutter 61 to penetrate the printing medium 500 more deeply, so as to better cut the printing medium 500.
[0071] In this embodiment, the guide fabric 2 can be made of an arc-shaped profile. The groove of the profile itself can be used as the first cutting groove 21 and the second cutting groove 22, eliminating the need for additional processing of the guide fabric 2. At the same time, the profile material is lightweight, which can reduce the weight of the bidirectional cutting device 400.
[0072] See Figure 2 Furthermore, the pressing cloth component 3 is located on the front side of the guiding cloth component 2, and the pressing cloth cutting component 5 is located on the bottom side of the pressing cloth component 3. The "front side" refers to the front side of the bidirectional cutting device 400. This makes it easier for the operator to observe and move the first cutting component 4 to accurately align with the cutting line in the first direction (in order to print more drawings in the limited space of the printing medium 500, the blank area between the drawings is small during printing, so the first cutting component 4 needs to be more accurately aligned with the cutting line). The pressing cloth cutting component 5 is located on the bottom side of the pressing cloth component 3. The second cutting component 6 can be used to cut the printing medium 500 to replace the take-up roller 300 without high-precision alignment with the cutting line. This effectively and reasonably arranges the structure of the entire bidirectional cutting device 400, making the structure of the bidirectional cutting device 400 more compact and reducing space occupation.
[0073] See Figure 1 This utility model embodiment also provides a digital printing device, including a printing platform 100, an output roller 200, a take-up roller, and the aforementioned bidirectional cutting device 400. The output roller 200 is located at the output end of the printing platform 100, the take-up roller 300 is located behind the output end, and the bidirectional cutting device 400 is located between the output roller 200 and the take-up roller 300. The printing medium 500 is conveyed from the printing platform 100 to the output roller 200 and sequentially wound around the output roller 200, the guide cloth 2 of the bidirectional cutting device 400, and the take-up roller 300.
[0074] The digital printing equipment provided by this utility model can cut the printing medium 500 in the first direction and / or the second direction as needed after the printing operation is completed and before rewinding. This enables integrated production of printing, cutting and rewinding, simplifies the cutting process, and eliminates the need to remove the printing medium 500 from the rewind roller 300 after printing and then perform a separate cutting operation, thus shortening the production cycle and improving production efficiency.
[0075] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bidirectional cutting device, used for cutting rolled materials in production, disposed between the output end and the take-up roller in the production and processing of rolled materials, characterized in that, include: The uprights are provided in two pieces, with the two uprights spaced apart. A guide fabric component, with its two ends respectively fixed to the two upright plates, is used to wind the printing medium. A pressing component is disposed on the two upright plates and spaced apart from the guiding component to form a preset channel through which the printing medium passes; A first cutting blade assembly is disposed on the pressing member and includes a first cutter capable of cutting the printing medium in a first direction, wherein the first direction is parallel to the conveying direction of the printing medium; A pressure cutting component is movably disposed on the two upright plates to press the printing medium when cutting it in a second direction, wherein the second direction is perpendicular to the conveying direction of the printing medium. The second cutting assembly is movably disposed on the fabric cutting member along the line connecting the two uprights. The second cutting assembly includes a second cutting blade. When cutting is required, the fabric cutting member moves toward the printing medium and presses the printing medium, the second cutting blade moves to the cutting position, and the second cutting assembly moves along the line connecting the uprights to cut the printing medium in the second direction.
2. The bidirectional cutting device as described in claim 1, characterized in that, The first cutter is retractable relative to the printing medium. When cutting is required, the first cutter extends into the printing medium and moves to the cutting position.
3. The bidirectional cutting device as described in claim 2, characterized in that, The first cutting blade assembly is movably disposed on the pressing fabric member along the line connecting the two upright plates, and the first cutting blade assembly can be moved along the line connecting the two upright plates and then locked in the current position.
4. The bidirectional cutting device as described in claim 3, characterized in that, The pressing component is provided with a first slide rail, the two ends of the first slide rail extend toward the two upright plates respectively, the first cutter assembly is movably disposed on the first slide rail, and the first slide rail is provided with a first locking component that locks the first cutter assembly after the first cutter assembly moves.
5. The bidirectional cutting device as described in claim 1, characterized in that, The first cutter assembly is located on the side of the pressing member opposite to the guiding member, and the pressing member is provided with a first clearance groove for the first cutter to pass through.
6. The bidirectional cutting device as described in claim 3 or 5, characterized in that, The first cutting blade assembly further includes: The first cutter holder is movably mounted on the guide cloth component; The movable component is movably disposed within the first blade holder relative to the printing medium, either away from or close to it. The first cutter is disposed on the first blade holder facing the printing medium, with one end extending into the first blade holder and fixed to the movable component. A first locking member is disposed on the first blade holder and passes through the first blade holder to abut against the movable member. After the movable member drives the first cutter to extend or retract, the first locking member presses the movable member.
7. The bidirectional cutting device as described in claim 6, characterized in that, The first cutter holder has a through groove communicating with the outside. The groove wall has a limiting part. The movable part is movably disposed in the through groove. One end of the first cutter extends into the through groove and is fixed to the movable part. When the movable part moves in the direction of the first cutter, it can abut against the limiting part. The end of the movable part away from the first cutter has a pulling part. The pulling part extends out of the first cutter holder from the through groove.
8. The bidirectional cutting device as described in claim 1, characterized in that, The second cutter is fixed on the second cutter assembly. Initially, the second cutter assembly is placed on the fabric cutting member outside the printing medium area.
9. The bidirectional cutting device as described in claim 8, characterized in that, The second cutter assembly is located on the side of the fabric cutting member away from the fabric guide member. The fabric cutting member is provided with a second clearance groove for the second cutter to pass through. The length of the second clearance groove is greater than the width of the printing medium in the second direction.
10. The bidirectional cutting device as claimed in claim 1, characterized in that, The fabric cutting component is provided with a second slide rail, the two ends of which extend toward the two upright plates and beyond the printing medium. The second cutter assembly is movably mounted on the second slide rail, and the second slide rail is provided with a second locking component that locks the second cutter assembly after it moves.
11. The bidirectional cutting device according to any one of claims 8-10, characterized in that, The second cutter assembly further includes a second cutter holder, which is movably disposed on the fabric cutting member, and the second cutter is fixedly disposed on the side of the second cutter holder facing the printing medium.
12. The bidirectional cutting device as described in claim 1, characterized in that, The bidirectional cutting device also includes a driving component, which is disposed on the upright plate. The driving end of the driving component is connected and fixed to the fabric pressing and cutting component. The driving component drives the fabric pressing and cutting component to move toward the printing medium and press the printing medium.
13. The bidirectional cutting device as described in claim 1, characterized in that, The pressing element is adjustablely mounted on the upright plate, and the pressing element can move toward or away from the guiding element to adjust the gap of the preset channel.
14. The bidirectional cutting device as described in claim 13, characterized in that, The pressing component has sliding parts at both ends, and the upright plate has a sliding groove that extends toward the guiding component. The sliding parts are placed in the sliding groove and can move within the sliding groove. The pressing component is detachably connected to the upright plate.
15. The bidirectional cutting device as described in claim 14, characterized in that, The bidirectional cutting device also includes a connector and a limiting member. The upright plate is provided with a first connecting part, and the pressing member is provided with a second connecting part corresponding to the first connecting part. The connector passes through the first connecting part and the second connecting part in sequence to detachably connect the two. The limiting member passes through the second connecting part and abuts against the first connecting part.
16. The bidirectional cutting device as claimed in claim 1, characterized in that, The pressing component is located on the front side of the guiding component, and the pressing and cutting component is located on the bottom side of the pressing component.
17. The bidirectional cutting device as claimed in claim 1, characterized in that, The guide fabric component is provided with a first cutting groove for the first cutter to extend into and a second cutting groove for the second cutter to extend into.
18. A digital printing device, characterized in that, include: Printing platform; A discharge roller is located at the discharge end of the printing platform; A take-up roller is located behind the discharge end; as well as The bidirectional cutting device as described in any one of claims 1-17, wherein the bidirectional cutting device is disposed between the output roller and the take-up roller, and the printing medium is conveyed from the printing platform to the output roller and sequentially wound around the output roller, the guide member of the bidirectional cutting device, and the take-up roller.