Flexible paperboard die cutting device
By setting the front limiting plate, positioning plate and blowing mechanism in the cardboard die-cutting device, the problem that flexible cardboard is prone to skew and requires manual adjustment in the die-cutting process is solved, and a horizontal flattening and safe and efficient production process of cardboard is achieved.
Patent Information
- Application Number
- CN202422089186.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In the cardboard die cutting process, the flexible cardboard is soft in texture and is prone to skew during feeding, and the feed end needs to be manually adjusted to avoid wrinkles and processing skews, which affects the processing cycle and poses production safety hazards.
A flexible cardboard die-cutting device is designed, including a front limiting plate, a first and second positioning plate symmetrically arranged, a conveyor belt and an air blowing mechanism. The front limiting plate and positioning plate are used for limiting positioning, and the blowing mechanism lifts the cardboard and flattenss the cardboard under the limiting positioning to ensure horizontal transportation.
Through the combined technology of limit and blow flattening, the horizontal conveying and flattening of flexible cardboard is achieved, avoiding the need for skew and manual adjustment, improving production efficiency and ensuring production safety.
Smart Images
Figure CN222958807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cardboard printing, and particularly relates to a flexible cardboard die-cutting device. Background Art
[0002] In the die-cutting process of cardboard, when the flexible cardboard is fed to the die-cutting position, due to the soft texture of the cardboard, the feeding at the die-cutting position only enters along the feeding direction. At the same time, in order to prevent the cardboard from wrinkling and skewing during processing, personnel usually arrange to manually flatten the feeding end of the cardboard, which not only affects the processing cycle but also poses certain potential production safety hazards. Content of the Utility Model
[0003] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a flexible cardboard die-cutting device that is convenient for flattening flexible cardboard and ensures production safety.
[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a flexible cardboard die-cutting device, which includes a base provided with a blanking mechanism, a front limiting plate arranged on one side of the base, a conveyor belt arranged on the other side of the base, and a first positioning plate and a second positioning plate fixedly arranged on the base between the front limiting plate and the conveyor belt. The two positioning plates are symmetrically arranged on the left and right sides of the blanking mechanism; a blowing mechanism capable of lifting the flexible cardboard is arranged below the conveyor belt.
[0005] With the above structure, the front limiting plate is set as the positioning of the feeding end of the flexible cardboard, and the first positioning plate and the second positioning plate symmetrically arranged on the left and right are used to limit the movement of the left and right ends of the flexible cardboard during feeding, ensuring that the flexible cardboard is not skewed in the horizontal direction during transportation; at the same time, the blowing mechanism is set to blow air to the bottom of the flexible cardboard when the flexible cardboard is transported to the die-cutting device, and the lower end surface of the flexible cardboard is temporarily not in contact with the blanking mechanism. Under the limiting action of the front limiting plate and the two positioning plates, the flexible cardboard is flattened by blowing air. After the cardboard is limited and flattened, the blanking mechanism is then turned on to press the flattened cardboard to complete the die-cutting process. The positioning efficiency is high, the flattening effect is good, and the production efficiency is improved.
[0006] To simplify the structure and facilitate installation, preferably, the blanking mechanism includes a lower die base and a support base fixedly arranged on the base, a linear motor fixedly arranged on the support base, and an upper die base connected to the output end of the linear motor. The upper die base is located directly above the lower die base. A lower template is fixedly arranged on the lower die base, and an upper template is movably arranged at a position corresponding to the lower template on the upper die base. A die-cutting blade block fixedly connected to the upper die base is wound around the outside of the upper template.
[0007] For the convenience of installation, preferably, a compression spring is connected between the upper die base and the upper template, and the lower end surface of the upper template is flush with the lower end surface of the die-cutting blade block.
[0008] To avoid movement interference during blanking, preferably, a bevel section with a wider upper part and a narrower lower part is wound around the lower end of the outer side of the die-cutting blade block, and the lower end of the bevel section is provided with a blade-like opening for blanking.
[0009] To ensure the horizontal suspension effect of the flattened cardboard, preferably, the air blowing mechanism includes a first air blowing pipe arranged below the conveyor belt and a second air blowing pipe arranged between the front limit plate and the lower template. The air outlet end of the first air blowing pipe is arranged in the horizontal direction, and the plane where the axial center line of the air outlet end of the first air blowing pipe is located is higher than the plane where the upper end surface of the lower template is located; the air outlet end of the second air blowing pipe is arranged in the vertically upward direction, and the plane where the end surface of the air outlet end of the second air blowing pipe is located is lower than the plane where the upper end surface of the lower template is located.
[0010] To facilitate the adjustment of the air blowing volume so as to adjust the suspension state during cardboard processing, preferably, both the first air blowing pipe and the second air blowing pipe are connected to an air pump. A first control valve is provided at the connection position between the first air blowing pipe and the air pump, and a second control valve is provided at the connection position between the second air blowing pipe and the air pump.
[0011] To facilitate the limitation of the height of the feeding end of the cardboard and reduce the feeding processing cycle, preferably, a guide plate fixedly connected to the lower die base is arranged between the conveyor belt and the lower template. The guide plate includes a first bent section, a second bent section, and a horizontal section connected in sequence from top to bottom. The first bent section and the second bent section form an obliquely arranged "S" shape, and the plane where the lower end surface of the horizontal section is located is flush with the plane where the upper end surface of the air outlet of the first air blowing pipe is located.
[0012] To facilitate the taking of the material after processing, preferably, a transition bevel with a narrower upper part and a wider lower part is arranged on the inner side wall of the front limit plate.
[0013] Beneficial effects: The present utility model is provided with a front limit plate and two positioning plates to achieve limiting in the horizontal direction of cardboard feeding, and uses the air blowing mechanism and the guide plate to control the feeding height and the suspension and flattening state of the cardboard, improving the production efficiency of the blanking mechanism and ensuring production safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:
[0015] Figure 1 is a schematic structural diagram of the present utility model.
[0016] Figure 2 is Figure 1 the A-direction view in
[0017] Figure 3 is a schematic diagram of the suspended state of the flexible cardboard.
[0018] The meanings of the reference numerals in the drawings are as follows:
[0019] Base - 1; Support base - 10; Linear motor - 101; Lower die base - 11; Lower template - 110; Upper die base - 12; Upper template - 120; Die-cutting blade block - 121; Compression spring - 122; Inclined plane section - 123;
[0020] Front limit plate - 20; Transition inclined plane - 201; First positioning plate - 21; Second positioning plate - 22;
[0021] Conveyor belt - 3; First air blowing pipe - 31; Second air blowing pipe - 32;
[0022] Air pump - 4; First bent section - 41; Second bent section - 42; Horizontal section - 43;
[0023] First control valve - 51; Second control valve - 52. Detailed implementation mode
[0024] As shown by Figure 1 , Figure 2 and Figure 3 , the utility model includes a base 1 provided with a blanking mechanism, a front limit plate 20 arranged on one side of the base 1, a conveyor belt 3 arranged on the other side of the base 1, and a first positioning plate 21 and a second positioning plate 22 fixedly arranged on the base 1 between the front limit plate 20 and the conveyor belt 3. The two positioning plates are symmetrically arranged on the left and right sides of the blanking mechanism; a blowing mechanism capable of lifting the flexible cardboard is arranged below the conveyor belt 3.
[0025] Specifically, the blanking mechanism includes a lower die base 11 and a support base 10 fixedly arranged on the base 1, a linear motor 101 fixedly arranged on the support base 10, and an upper die base 12 connected to the output end of the linear motor 101. The upper die base 12 is located directly above the lower die base 11. A lower template 110 is fixedly arranged on the lower die base 11, an upper template 120 is arranged at a position corresponding to the lower template 110 on the upper die base 12, and a die-cutting blade block 121 fixedly connected to the upper die base 12 is wound around the outside of the upper template 120; a compression spring 122 is connected between the upper die base 12 and the upper template 120, and the lower end surface of the upper template 120 is flush with the lower end surface of the die-cutting blade block 121.
[0026] A sloped section 123 that is wider at the top and narrower at the bottom is wound around the lower end on the outside of the die-cutting blade block 121. The lower end of the sloped section 123 is provided with a blade-like opening for discharging materials; a transition slope 201 that is narrower at the top and wider at the bottom is provided on the inner side wall of the front limit plate 20.
[0027] The air blowing mechanism includes a first air blowing pipe 31 provided below the conveyor belt 3 and a second air blowing pipe 32 provided between the front limit plate 20 and the lower template 110. The air outlet end of the first air blowing pipe 31 is horizontally arranged, and the plane where the axial center line of the air outlet end of the first air blowing pipe 31 is located is higher than the plane where the upper end surface of the lower template 110 is located; the air outlet end of the second air blowing pipe 32 is vertically upward, and the plane where the end surface of the air outlet end of the second air blowing pipe 32 is located is lower than the plane where the upper end surface of the lower template 110 is located; both the first air blowing pipe 31 and the second air blowing pipe 32 are connected to an air pump 4. A first control valve 51 is provided at the connection position between the first air blowing pipe 31 and the air pump 4, and a second control valve 52 is provided at the connection position between the second air blowing pipe 32 and the air pump 4.
[0028] A guide plate fixedly connected to the lower die base 11 is provided between the conveyor belt 3 and the lower template 110. The guide plate includes a first bent section 41, a second bent section 42, and a horizontal section 43 that are sequentially connected from top to bottom. The first bent section 41 and the second bent section 42 form an obliquely arranged "S" shape, and the plane where the lower end surface of the horizontal section 43 is located is flush with the plane where the upper end surface of the air outlet of the first air blowing pipe 31 is located.
[0029] The working principle of the present utility model is as follows:
[0030] As Figures 1 to 3 shown, before processing, due to the characteristics of the flexible cardboard, it is necessary to first debug the suspension state of the cardboard in the air blowing state to achieve the best die-cutting effect. At this time, turn on the air pump 4 and supply air to both the first air blowing pipe 31 and the second air blowing pipe 32 simultaneously. At this time, place a corresponding cardboard debugging sample directly above the lower template 110. The front limit plate 20, the first positioning plate 21, and the second positioning plate 22 limit the cardboard debugging sample. Combining the adjustment operations of the first control valve 51 and the second control valve 52, and making the lower end surface of the cardboard sample not contact the lower template 110 for the time being. Under the limiting action of the front limit plate 20, the first positioning plate 21, and the second positioning plate 22, use air blowing to flatten the flexible cardboard to ensure that the flexible cardboard is not skewed in the horizontal direction during transportation, so that the horizontal suspension state of the cardboard sample can maintain the horizontal state at the feeding front end and the feeding end. After the debugging is completed, directly turn off the air pump 4 for later use.
[0031] During processing, the conveyor belt 3 transports the cardboard to above the first air blowing pipe 31 and extends out of the conveyor belt 3. The extended end of the cardboard contacts the arc section at the junction of the first bending section 41 and the second bending section 42, and moves downward along this arc section towards the lower end of the second bending section 42. At this time, the air pump 4 is turned on, and the gas discharged from the first air blowing pipe 31 blows towards the gap between the lower end surface of the horizontal section 43 and the upper end surface of the lower template 110, that is, the lower end surface position in the feeding direction of the flexible cardboard. Immediately, the downward-moving flexible cardboard is blown to extend horizontally, and the upper end surface of the flexible cardboard feeding position fits with the lower end surface of the horizontal section 43. At this time, the flexible cardboard continues to move and feed to the position of the lower template 110. When the feeding front end of the flexible cardboard passes the lower template 110 and reaches the position of the second air blowing pipe 32, the feeding front end surface of the flexible cardboard continues to move horizontally and abuts against the inner side wall of the front limiting plate 20. Just then, the air outlet of the second air blowing pipe 32 blows vertically upward towards the flexible cardboard, and the flexible cardboard maintains the horizontal state of the feeding front end and the feeding end. At the same time, the conveyor belt 3 is turned off (as shown in the state of Figure 3 the dotted line position in the figure is the flexible cardboard).
[0032] At this time, the flexible cardboard maintains a flattened horizontal state under the coordination of the two air blowing positions. Then, the linear motor 101 is turned on to synchronously drive the upper template 120 and the die-cutting blade block 121 to move downward. When the upper template 120 overlaps and abuts against the lower template 110, since the lower end surface of the upper template 120 is flush with the lower end surface of the die-cutting blade block 121, no incision dragging will occur; then, the upper die base 11 continues to move downward and compresses the compression spring 122, and drives the die-cutting blade block 121 to continue to move downward to simultaneously perform die-cutting and blanking processing on the four sides of the flexible cardboard. The edge positions of the flexible cardboard are simultaneously die-cut and cut off, avoiding the occurrence of processing deviation due to unilateral force and maintaining the flatness of the die-cutting opening, that is, the blanking is flat. The cut-off scraps are stacked in a set shape outside the lower template 110. To prevent interference with the displacement stroke of the die-cutting blade block 121, it is only necessary to regularly clean and remove the scraps.
[0033] After blanking, the linear motor 101 drives the upper die base 12 to move upward. At this time, the die-cut flexible cardboard on the lower template 110 is still affected by the blowing of the first air blowing pipe 31. At this time, only need to manually lift the corresponding end of the flexible cardboard at the position of the front limiting plate 20 and take out the processed flexible cardboard along the transition inclined surface 201. Then, turn on the conveyor belt 3 and repeat the above operation.
[0034] It should be noted that, for the convenience of feeding and positioning and to prevent the front end of the flexible cardboard during feeding from being bent due to contact with the inner wall of the front limit plate 20, the conveyor belt 3 is preferably driven by a servo motor. Since the air outlet directions of the first air blowing pipe 31 and the second air blowing pipe 32 are perpendicular to each other and converge at the front end of the flexible cardboard during feeding, gap openings are provided between the front limit plate 20 and the first positioning plate 21 and between the front limit plate 20 and the second positioning plate 22. In this way, when the two air inlet directions converge, the swirling flow generated by the convergence can be discharged in time from the opening position, so as to prevent the flexible cardboard from being in a wavy suspended state due to unstable air flow, and can better keep the air outlet of the second air blowing pipe 32 horizontal at the front section of the flexible cardboard during feeding.
[0035] In addition, the width dimensions of the air outlet openings of the first air blowing pipe 31 and the second air blowing pipe 32 are adapted to the width dimension between the inner walls of the first positioning plate 21 and the second positioning plate 22. Similarly, the width dimensions of the second bending section 42 and the horizontal section 43 are also adapted to the width dimension between the inner walls of the first positioning plate 21 and the second positioning plate 22, so as to completely suspend and lift the flexible cardboard above the lower template 110 by the gas discharged from the air blowing pipes. The first bending section 41 is provided to prevent the flexible cardboard from moving from the upper end of the horizontal section 43 to the lower template 110, ensuring the stability and safety of production.
Claims
1. A flexible paperboard die-cutting device, characterized in that: The invention comprises a base (1) provided with a material discharging mechanism, a front limit plate (20) arranged on one side of the base (1), a conveyor belt (3) arranged on the other side of the base (1), and a first positioning plate (21) and a second positioning plate (22) fixedly arranged on the base (1) between the front limit plate (20) and the conveyor belt (3), wherein the two positioning plates are symmetrically arranged on the left and right sides of the material discharging mechanism; and an air blowing mechanism capable of lifting a flexible paperboard is arranged below the conveyor belt (3).
2. A flexible paperboard die-cutting device as claimed in claim 1, characterized in that: The blanking mechanism comprises a lower die base (11) and a support base (10) fixedly mounted on a base (1), a linear motor (101) fixedly mounted on the support base (10), and an upper die base (12) connected to the output end of the linear motor (101); the upper die base (12) is located directly above the lower die base (11); a lower die plate (110) is fixedly mounted on the lower die base (11); an upper die plate (120) is movably mounted on the upper die base (12) at a position corresponding to the lower die plate (110); and a die cutting blade block (121) fixedly connected to the upper die base (12) is wound around the outer side of the upper die plate (120).
3. A flexible paperboard die-cutting device as claimed in claim 2, characterized in that: A compression spring (122) is connected between the upper die seat (12) and the upper die plate (120), and the lower end surface of the upper die plate (120) is flush with the lower end surface of the die cutting blade block (121).
4. A flexible paperboard die-cutting device as claimed in claim 3, characterized in that: A sloped surface section (123) which is wider at the top and narrower at the bottom is disposed around the lower outer end of the die-cutting blade block (121), and the lower end of the sloped surface section (123) is arranged in the shape of a cutting edge for cutting materials.
5. A flexible paperboard die-cutting device as claimed in claim 2, characterized in that: The blowing mechanism comprises a first blowing pipe (31) arranged below the conveyor belt (3) and a second blowing pipe (32) arranged between the front limiting plate (20) and the lower template (110); the outlet end of the first blowing pipe (31) is arranged in a horizontal direction, and the plane where the axial center line of the outlet end of the first blowing pipe (31) is located is higher than the plane where the upper end surface of the lower template (110) is located; the outlet end of the second blowing pipe (32) is arranged in a vertically upward direction, and the plane where the end surface of the outlet end of the second blowing pipe (32) is located is lower than the plane where the upper end surface of the lower template (110) is located.
6. A flexible paperboard die-cutting device as claimed in claim 5, characterized in that: The first air blowing pipe (31) and the second air blowing pipe (32) are both connected to the air pump (4); a first control valve (51) is provided at the connection position between the first air blowing pipe (31) and the air pump (4); and a second control valve (52) is provided at the connection position between the second air blowing pipe (32) and the air pump (4).
7. A flexible paperboard die-cutting device as claimed in claim 5, characterized in that: A guide plate fixedly connected to the lower mold base (11) is provided between the conveyor belt (3) and the lower mold plate (110), the guide plate comprising a first bending section (41), a second bending section (42) and a horizontal section (43) which are sequentially connected from top to bottom, the first bending section (41) and the second bending section (42) forming an oblique "S" shape, and the plane where the lower end surface of the horizontal section (43) is located is flush with the plane where the upper end surface of the air outlet of the first blowing pipe (31) is located.
8. A flexible paperboard die-cutting device as claimed in claim 1, characterized in that: A transition slope (201) which is narrow at the top and wide at the bottom is provided on the inner side wall of the front limiting plate (20).