Die-cutting knife die for paperboards
By designing a die-cutting tool mold structure including clamps, pressing plates and bolts, the problem of labor-intensive replacement of the existing die-cutting tool molds when replacing the contour tool is solved, and the easy replacement of the contour tool and the improvement of the operating efficiency are achieved.
Patent Information
- Application Number
- CN202421441309.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Existing die cutting dies require a lot of effort when replacing the contour knife, which is laborious and inconvenient.
A die-cutting knife mold structure including a knife plate, a cutter groove, a clamp, a press plate and a bolt is designed. The bolt rotation provides power to push the pressure plate downward, thereby pushing the clamp plate to tightly contact with the contour knife, limiting the movement of the contour knife, and loosening the clamp plate and the contour knife when the bolt rotates upward, so as to easily replace the contour knife.
It realizes easy replacement of the contour knife, reduces the power consumption during the replacement process, and improves operating efficiency.
Smart Images
Figure CN222819105U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of die-cutting knife dies, in particular to a die-cutting knife die for cardboard. Background Art
[0002] Die-cutting dies are tools for cutting cardboard, and are widely used in the processing of cardboard, packaging cartons and other materials. Through die-cutting dies, various complex patterns and shapes can be cut on cardboard for making packaging boxes, display racks, toys and other products. The die-cutting and creasing process can not only improve the appearance quality of the product, but also improve the structural strength and performance of the product. The die-cutting die for cardboard is an important cardboard processing tool. It is manufactured through precise mold design and high-quality materials to meet the processing needs of different paper products.
[0003] By applying pressure to the die-cutting die, the die-cutting die generates power, and the contour knife on the die-cutting die is used to cut off the excess part of the cardboard, so that the cardboard is cut into a required style. After cutting the cardboard for a long time, the contour knife will cause problems such as setbacks and deformation, and the cardboard cannot be cut. The contour knife needs to be replaced. However, most of the existing contour knives and knife plates are connected in an inlaid manner. When replacing the contour knife, it takes a lot of force to pull it out from the inside of the knife plate, which is very laborious. In order to solve this technical problem, the utility model proposes a die-cutting die for cardboard. Utility Model Content
[0004] The main purpose of the utility model is to provide a die-cutting knife die for cardboard, which can effectively solve the problems mentioned in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A die-cutting die for cardboard comprises a knife plate and a knife groove, wherein the knife groove is provided on the inner side of the knife plate, the inner wall of the knife groove is detachably connected with a contour knife, the inner side of the knife plate is provided with a pressing groove, the pressing groove is communicated with the knife groove, the inner bottom wall of the pressing groove is slidably connected with a clamping plate, one side of the clamping plate is in contact with one side of the contour knife, the other side of the clamping plate is slidably connected with a pressing plate, the other side of the pressing plate is in slidable contact with the inner wall of the pressing groove, a through hole is provided on the inner side of the pressing plate, a bolt is movably connected through the inner wall of the through hole, the threaded section of the bolt is threadedly connected with the inner side of the knife plate, and a material discharge mechanism is arranged inside the knife plate.
[0007] Preferably, the clamping plate on one side of the pressure plate has an inclination angle, and the pressure plate on one side of the clamping plate has the same inclination angle.
[0008] Preferably, a slide groove is opened on the inner side of the knife plate, the inner bottom wall of the slide groove is connected to a slide seat, the inner wall of the slide seat is slidably connected to a slide rod, and one end of the slide rod is connected to a first positioning block.
[0009] Preferably, a protrusion is connected to the lower surface of the splint, one side of the protrusion is connected to the other end of the sliding rod, a spring 1 is sleeved on the outside of the sliding rod, one end of the spring 1 is connected to one side of the protrusion, and the other end of the spring 1 is connected to one side of the sliding seat.
[0010] Preferably, the unloading mechanism includes a support plate, the outer surface of the support plate is connected to the inner wall of the knife plate, the inner wall of the support plate is slidably connected to a guide rod, one end of the guide rod is connected to a push plate, and the outer surface of the push plate is slidably connected to the inner wall of the knife plate.
[0011] Preferably, the other end of the guide rod is connected to a second positioning block, the outside of the guide rod is sleeved with a second spring, one end of the second spring is connected to one side of the push plate, and the other end of the second spring is connected to one side of the support plate.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the utility model, the clamping plate, the pressure plate and the bolt are matched with each other, and the power provided by the rotation of the bolt pushes the pressure plate to move downward. The downward movement of the pressure plate provides power for the movement of the clamping plate. When the pressure plate moves downward, the clamping plate is pushed to tightly contact with the contour knife, thereby limiting the movement of the contour knife. When the bolt rotates and moves upward, the pressure plate loses its pushing force on the clamping plate, causing looseness between the clamping plate and the contour knife, thereby easily removing the contour knife from the inside of the knife groove for replacement.
[0014] In the utility model, the push plate, the second spring and the guide rod cooperate with each other, and the push plate contacts the paperboard. When the contour knife cuts the paperboard, the paperboard inside the contour knife will push the push plate to move, and at the same time, the push plate compresses the second spring. The compressed second spring provides power for the push plate to reset. After the paperboard cutting is completed, the contour knife moves upward, the outer part of the push plate loses the driving force, and the second spring pushes the push plate to move, so that the paperboard stuck in the contour knife is pushed out, which can prevent the paperboard from being stuck in the contour knife after being cut. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a die-cutting die for cardboard according to the utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of a knife plate in a die-cutting die for cardboard according to the utility model;
[0017] Figure 3 The utility model is a die-cutting knife die for cardboard Figure 2 A partial enlarged schematic diagram;
[0018] Figure 4 This is a schematic diagram of the structure of a clamping plate and a pressing plate in a die-cutting die for cardboard of the utility model;
[0019] Figure 5 The utility model is a schematic diagram of a material cutting mechanism in a die-cutting die for cardboard.
[0020] In the figure: 1. knife plate; 2. knife groove; 3. contour knife; 4. pressure groove; 5. clamping plate; 6. pressure plate; 7. through hole; 8. bolt; 9. unloading mechanism; 901. support plate; 902. guide rod; 903. push plate; 904. second positioning block; 905. spring two; 10. slide groove; 11. slide seat; 12. slide rod; 13. first positioning block; 14. bump; 15. spring one. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] like Figure 1-5 As shown, a die-cutting die for cardboard comprises a knife plate 1 and a knife groove 2. The knife groove 2 is provided on the inner side of the knife plate 1. The inner wall of the knife groove 2 is detachably connected with a contour knife 3. The knife groove 2 has a space for accommodating the contour knife 3. The contour knife 3 is placed through the knife groove 2. A pressing groove 4 is provided on the inner side of the knife plate 1. The pressing groove 4 is connected with the knife groove 2. A clamping plate 5 is slidably connected to the inner bottom wall of the pressing groove 4. The pressing groove 4 allows the clamping plate 5 to have space for an active position. After the pressing plate 6 moves upward, the clamping plate 5 will move toward the pressing plate 6. One side of the clamping plate 5 contacts one side of the contour knife 3. The other side of the clamping plate 5 is slidably connected with a pressing plate 6. The other side of the pressing plate 6 contacts the inner wall of the pressing groove 4. The clamping plate 5 has an inclination angle on one side of the pressing plate 6. The pressing plate 6 has the same inclination angle on one side of the clamping plate 5. The downward movement of the pressing plate 6 provides power for the clamping plate 5 to move. The inclination angle facilitates the pressing plate 6 to push the clamping plate 5 to move.
[0023] A through hole 7 is provided on the inner side of the pressure plate 6, and a bolt 8 is movably connected to the inner wall of the through hole 7. The threaded section of the bolt 8 is threadedly connected to the inner side of the knife plate 1. The bolt 8 will change its up and down position after rotation. When the bolt 8 rotates and moves upward, the pressure on the pressure plate 6 is reduced, and the pressure plate 6 will move upward. After the bolt 8 rotates and moves downward, a driving force is generated on the pressure plate 6, pushing the pressure plate 6 to move downward, thereby providing power for the downward movement of the pressure plate 6.
[0024] A slide groove 10 is provided on the inner side of the blade 1, and a slide seat 11 is connected to the inner bottom wall of the slide groove 10. A slide rod 12 is slidably connected to the inner wall of the slide seat 11. The slide groove 10 allows the slide rod 12 to have space for moving. The slide seat 11 can maintain the stability of the slide rod 12 when sliding. A first positioning block 13 is connected to one end of the slide rod 12. The first positioning block 13 can prevent the slide rod 12 from detaching from the slide seat 11 and limit the sliding distance of the slide rod 12. A protrusion 14 is connected to the lower surface of the clamping plate 5. The clamping plate 5 is connected to the protrusion 14 through the protrusion 14. Receiving the power of spring 15, one side of the protrusion 14 is connected to the other end of the slide rod 12, and the outside of the slide rod 12 is sleeved with a spring 15, one end of the spring 15 is connected to one side of the protrusion 14, and the other end of the spring 15 is connected to one side of the slide seat 11. When the spring 15 pushes the protrusion 14 to move a position, it also drives the clamping plate 5 to move a position. The clamping plate 5 is elastically supported by the spring 15, so as to always maintain the supporting force for the contour knife 3 and maintain the stability of the contour knife 3 when it is not completely fixed.
[0025] The inside of the knife plate 1 is provided with a feeding mechanism 9, which can prevent the cardboard from getting stuck inside the contour knife 3 after being cut. The feeding mechanism 9 includes a support plate 901, the outer surface of the support plate 901 is connected to the inner wall of the knife plate 1, the inner wall of the support plate 901 is slidably connected with a guide rod 902, one end of the guide rod 902 is connected to a push plate 903, the outer surface of the push plate 903 is slidably connected to the inner wall of the knife plate 1, the guide rod 902 can provide a pulling force for the push plate 903, and guide the moving direction of the push plate 903, the other end of the guide rod 902 is connected to The second positioning block 904 can prevent the guide rod 902 from separating from the support plate 901. The outer part of the guide rod 902 is sleeved with a second spring 905. One end of the second spring 905 is connected to one side of the push plate 903, and the other end of the second spring 905 is connected to one side of the support plate 901. When the cardboard is cut, the push plate 903 will be pushed upward, and the push plate 903 will compress the second spring 905. After compression, the second spring 905 provides power for the push plate 903 to move downward. When the push plate 903 moves downward, the cardboard inside the contour knife 3 is pushed out.
[0026] It should be noted that, in actual use of the device, firstly, the bolt 8 is turned to move upward to release the fixation on the pressure plate 6, and the pressure plate 6 loses the downward pressure on the clamping plate 5. At the same time, the contact between the clamping plate 5 and the contour knife 3 becomes loose, and then the contour knife 3 is taken out from the inside of the knife groove 2. After the contour knife 3 is taken out from the inside of the knife groove 2, the spring 15 pushes the clamping plate 5 to move toward the position of the knife groove 2 to reduce the gap of the knife groove 2. When the new contour knife 3 is placed in the inside of the knife groove 2, the contour knife 3 is first inserted into the inside of the knife groove 2, and then the bolt 8 is turned to move downward. The bolt 8 pushes the pressure plate 6 to move downward, and at the same time, the pressure plate 6 pushes the clamping plate 5 to make close contact with the contour knife 3.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A die-cutting die for cardboard, comprising a die plate (1) and a die groove (2), characterized in that: The knife groove (2) is provided on the inner side of the knife plate (1); the inner wall of the knife groove (2) is detachably connected with a contour knife (3); the inner side of the knife plate (1) is provided with a pressing groove (4); the pressing groove (4) is connected with the knife groove (2); the inner bottom wall of the pressing groove (4) is slidably connected with a clamping plate (5); one side of the clamping plate (5) is in contact with one side of the contour knife (3); the other side of the clamping plate (5) is slidably connected with a pressing plate (6); the other side of the pressing plate (6) is in slidable contact with the inner wall of the pressing groove (4); a through hole (7) is provided on the inner side of the pressing plate (6); a bolt (8) is movably connected through the inner wall of the through hole (7); the threaded section of the bolt (8) is threadedly connected with the inner side of the knife plate (1); a feeding mechanism (9) is provided inside the knife plate (1).
2. A die-cutting die for cardboard according to claim 1, characterized in that: The clamping plate (5) has an inclination angle on one side of the pressing plate (6), and the pressing plate (6) has the same inclination angle on one side of the clamping plate (5).
3. The die-cutting die for cardboard according to claim 1, characterized in that: A slide groove (10) is provided on the inner side of the knife plate (1), the inner bottom wall of the slide groove (10) is connected to a slide seat (11), the inner wall of the slide seat (11) is slidably connected to a slide rod (12), and one end of the slide rod (12) is connected to a first positioning block (13).
4. The die-cutting die for cardboard according to claim 3, characterized in that: The lower surface of the clamping plate (5) is connected to a protrusion (14), one side of the protrusion (14) is connected to the other end of the sliding rod (12), the outside of the sliding rod (12) is sleeved with a spring (15), one end of the spring (15) is connected to one side of the protrusion (14), and the other end of the spring (15) is connected to one side of the sliding seat (11).
5. The die-cutting die for cardboard according to claim 1, characterized in that: The unloading mechanism (9) comprises a support plate (901), the outer surface of the support plate (901) is connected to the inner wall of the knife plate (1), the inner wall of the support plate (901) is slidably connected to a guide rod (902), one end of the guide rod (902) is connected to a push plate (903), and the outer surface of the push plate (903) is slidably connected to the inner wall of the knife plate (1).
6. A die-cutting die for cardboard according to claim 5, characterized in that: The other end of the guide rod (902) is connected to a second positioning block (904), and a second spring (905) is sleeved on the outside of the guide rod (902). One end of the second spring (905) is connected to one side of the push plate (903), and the other end of the second spring (905) is connected to one side of the support plate (901).