Table tennis bat rubber die cutting device
By designing the rubber die-cutting device of table tennis rackets, using double-sided die-cutting and multi-station cutting technology, the problems of low trimming efficiency and high precision control of table tennis rackets in the existing technology are solved, and efficient and accurate rubber die-cutting is achieved.
Patent Information
- Application Number
- CN202421022682.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art has problems such as low efficiency, high precision control, and edge defects in the rubber trimming of table tennis rackets, especially the single-sided die-cutting method is not efficient and requires high precision control.
A table tennis racket rubber die-cutting device is designed, adopting double-sided die-cutting method. By setting two workstations and multiple cutting blades, combining the cooperation of hydraulic cylinders and shrapnels, the full fit of the upper and lower plates and the improvement of cutting accuracy is achieved.
The ability of double-sided die-cutting is realized, cutting efficiency and quality is improved, cutting accuracy is ensured, edge defects are avoided, and die-cut is completed in one stamping, which has the advantages of high efficiency.
Smart Images
Figure CN222553796U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of die-cutting devices, in particular to a table tennis racket rubber die-cutting device. Background Art
[0002] A table tennis racket consists of three parts: the base, the rubber and the sponge. The reasonable combination of the three determines the quality of a racket.
[0003] Glue is applied to the base plate to adhere the rubber, and then the rubber is cut to correct the part. Usually, a utility knife or scissors are used for correction. For a utility knife, the rubber needs to be pulled during correction, and it is easy to be unstable due to the debonding after the correction. For scissors, due to the reciprocating action, there are defects on the trimmed edges. Die-cutting is also used in factories, but it is usually a single-sided cutting operation, which is not efficient, or the rubber is die-cut and then adhered to the base plate, which requires higher precision control. Summary of the invention
[0004] In order to solve the above problems, the present invention discloses a table tennis racket rubber die-cutting device, comprising a base, wherein the four corners of the upper end of the base are fixedly connected with guide rods, and the guide rods are sequentially interspersed with a lower plate, a middle plate and an upper plate from bottom to top. That is, under the buckling of the upper plate, the upper plate, the middle plate, the lower plate and the base can be completely fitted together, so that the racket rubber placed therein can be die-cut, and in this solution, two workstations are provided, one of which is located on the middle plate and the other is located on the lower plate.
[0005] The middle part of the middle plate is provided with an opening, and the two side walls of the opening are provided with convex edges, a cutting plate is movably provided below the convex edge, a second cutting edge is provided on the upper end surface of the cutting plate, and a third cutting edge is provided on the lower end of the upper plate. This is the first workstation, the racket is placed at the opening, and the second cutting edge and the third cutting edge cut off the rubber on both sides of the racket.
[0006] The first pads are slidably arranged on both sides of the middle plate, and the first pads symmetrically clamp the racket. The first pads are used to clamp the position of the racket during die cutting, and to support the rubber to avoid the problem of force balance of the rubber during the cutting process. The first pad is a two-flap type. In the contact area, due to the wear caused by machining accuracy and long-term use, the contact area cannot be completely spliced, resulting in unbalanced force on the rubber. Therefore, the rubber is reserved for cutting here and removed in the second die cutting.
[0007] The lower plate is provided with a station slot, and a through hole is provided at the edge of the station slot, a second pad is slidably provided in the through hole, a first cutting edge and a fourth cutting edge are provided below and above the second pad, respectively, the first cutting edge is fixedly connected to the upper end face of the base, and the fourth cutting edge is fixedly connected to the lower end face of the cutting plate. This is the second station, the racket die-cut at the first station is transferred to the second station, at this time, the uncut rubber is placed above and below the second pad, that is, the rubber on both sides of the racket clamps the second pad, and when the middle plate and the lower plate are fitted, the rubber of the first cutting edge and the fourth cutting edge is cut.
[0008] Preferably, the upper end of the guide rod is fixedly connected to an upper top plate, the middle part of the upper end of the upper top plate is fixedly connected to a hydraulic cylinder, and the output end extending from the lower end of the hydraulic cylinder is fixedly connected to the upper plate. The hydraulic cylinder is started to drive the upper plate to rise and fall.
[0009] Preferably, the lower end of the convex edge is fixedly connected with a second limiting column, the second limiting column penetrates the cutting plate, and the lower end of the second limiting column supports the cutting plate, grooves are provided on both sides of the cutting plate, and spring plates are provided in the grooves, and the upper ends of the spring plates abut against the convex edge. Only under the action of the spring plates, the cutting plate is kept moving downward, and the thickness of the cutting plate is equal to the distance from the lower end surface of the convex edge to the lower end surface of the middle plate, so that the lower plate and the upper plate can be completely fitted.
[0010] Preferably, a first limiting column is provided in the through hole on the lower plate, and both ends of the second pad are slidably provided on the first limiting column, and a second spring is inserted into the first limiting column, and the second spring pushes the second pad upward. Only under the action of the second spring, the second pad is kept in the upper position on the first limiting column, and similarly, the lower plate and the upper plate can be completely fitted, and the second pad is completely received in the through hole, and the provision of this structure facilitates the uncut rubber of the racket to extend from below to below the second pad.
[0011] Preferably, both sides of the lower end surface of the upper plate are fixedly connected to the inclined surface blocks, the first pad plate is provided with a limiting opening, and the inner wall of the limiting opening is an inclined surface, and after the inclined surface blocks and the limiting opening cooperate, the two first pad plates clamp the racket. When the first station is die-cut, the first pad plate needs to be pulled open, and then the racket is placed in the opening, and then the first pad plate clamps the racket, and the rubber on both sides of the racket clamps the first pad plate, and the inclined surface blocks and the limiting opening cooperate together when the upper plate is attached to the middle plate, so that the first pad plate is in the correct position.
[0012] Preferably, the lower end of the upper plate is fixedly connected with a suspension rod, the suspension rod is inserted through the middle plate, and the lower end of the suspension rod supports the middle plate. When the upper plate rises, the middle part can be pulled up to ensure that the first station and the second station have enough space, that is, the distance between the lower plate, the middle plate and the upper plate is sufficient, which is convenient for placing the racket.
[0013] Preferably, a first spring is disposed at the lower part of the guide rod, and the upper end of the first spring supports the lower plate. The first spring plays a buffering role.
[0014] The beneficial effects of the present invention are as follows:
[0015] 1. It has the ability of double-sided die cutting to improve cutting efficiency. At the same time, it is equipped with a first pad and a second pad to improve the die cutting quality and ensure the cutting accuracy.
[0016] 2. A double-station setting is adopted, with rubber reserved at the joint of the first pad and cutting performed at the second pad, to avoid gaps at the joint of the two first pads, which would cause quality problems in the cutting at this location.
[0017] 3. The double-station racket can complete die-cutting in one punching, which has the advantage of high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 It is an explosion schematic diagram of the present invention;
[0020] Figure 3 It is a schematic diagram of the bottom of the upper plate of the present invention;
[0021] Figure 4 It is a schematic diagram of the lower part of the cutting board of the present invention;
[0022] Figure 5 for Figure 2 The enlarged view of point A in the middle;
[0023] Figure 6 for Figure 2 The enlarged view of point B in the middle;
[0024] Figure 7 for Figure 2 Enlarged view of point C in the middle;
[0025] Figure 8 This is a schematic diagram of the structure of the first die-cut table tennis racket.
[0026] List of reference numerals:
[0027] 1. Base; 2. Guide rod; 3. Lower plate; 4. First pad; 5. Middle plate; 6. Upper plate; 7. Upper top plate; 8. Hydraulic cylinder; 9. First spring; 10. First cutting edge; 11. Limiting opening; 12. Second cutting edge; 13. Cutting plate; 14. Hanging rod; 15. Inclined block; 16. Third cutting edge; 17. Fourth cutting edge; 18. First limiting column; 19. Second spring; 20. Second pad; 21. Spring piece; 22. Second limiting column; 23. Convex edge; 24. Bottom plate; 25. Reserved rubber. DETAILED DESCRIPTION
[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0029] Combination Figures 1 to 8 As shown, a table tennis racket rubber die-cutting device includes a base 1, which is a square block. The four corners of the upper end of the base 1 are fixedly connected to guide rods 2, and the guide rods 2 are sequentially interspersed with a lower plate 3, a middle plate 5 and an upper plate 6 from bottom to top, that is, the lower plate 3, the middle plate 5 and the upper plate 6 slide on the guide rods 2. During die-cutting, the lower plate 3, the middle plate 5 and the upper plate 6 are completely fitted together.
[0030] An opening is provided in the middle of the middle plate 5, the opening is square, and the two side walls of the opening are provided with convex edges 23. The rubber attached to the bottom plate is square when not cut, which is exactly the size of the opening, that is, when die-cutting, the racket is placed in the opening, and because the convex edge 23 is pre-supported, a cutting plate 13 is movably provided below the convex edge 23, and a second cutting edge 12 is provided on the upper end surface of the cutting plate 13. A third cutting edge 16 is provided at the lower end of the upper plate 6, and the second cutting edge 12 cuts the rubber located at the lower part, while the second cutting edge 16 cuts the rubber located at the upper part.
[0031] The first pads 4 are slidably arranged on both sides of the middle plate 5, and the first pads 4 symmetrically clamp the racket. The first pads 4 are used to limit the position to ensure the cutting accuracy. At the same time, they support the rubber during cutting. During die-cutting, the force on the rubber is balanced to ensure the smoothness of the cut and reduce the risk of degumming. This is the first cutting station to avoid gaps at the joints of the first pads 4, which will affect the cutting quality here. Therefore, uncut rubber is reserved here, as shown in the following figure. Figure 8 As shown, a reserved rubber 25 is present on the upper end of the bottom plate 24 during the first die cutting.
[0032] A work station groove is provided on the lower plate 3, which is the second work station. The reserved rubber 25 of the first die-cutting is further cut off, and a through hole is provided at the edge of the work station groove. The second pad 20 is slidably provided in the through hole. When cutting, the upper and lower rubbers clamp the second pad 20. The first cutting blade 10 and the fourth cutting blade 17 are respectively provided on the lower and upper parts of the second pad 20. The first cutting blade 10 is fixedly connected to the upper end surface of the base 1, and the fourth cutting blade 17 is fixedly connected to the lower end surface of the cutting plate 13. The base 1, the lower plate 3 and the middle part 5 are completely fitted to achieve the second die-cutting.
[0033] The upper end of the guide rod 2 is fixedly connected to an upper top plate 7, the middle part of the upper end of the upper top plate 7 is fixedly connected to a hydraulic cylinder 8, and the output end extending from the lower end of the hydraulic cylinder 8 is fixedly connected to the upper plate 6. Start the hydraulic cylinder 8 to realize the lifting and lowering of the upper plate 6, and the lowering of the upper plate 6 is to perform the die cutting process.
[0034] The lower end of the convex edge 23 is fixedly connected with a second limiting column 22, which penetrates the cutting plate 13, and the lower end of the second limiting column 22 supports the cutting plate 13, that is, only under the action of gravity, the cutting plate 13 slides up and down on the second limiting column 22 to the lower part, that is, the cutting plate 13 is separated from the opening, thereby preventing the second cutting edge 12 from adhering to the racket. Grooves are provided on both sides of the cutting plate 13, and spring pieces 21 are provided in the grooves. The upper end of the spring piece 21 abuts against the convex edge 23. The use of the spring piece 21 ensures that the cutting plate 13 can move downward smoothly.
[0035] A first limiting column 18 is arranged in the through hole on the lower plate 3, and both ends of the second pad 20 are slidably arranged on the first limiting column 18. A second spring 19 is inserted into the first limiting column 18, and the second spring 19 pushes the second pad 20 upward, so that an opening is reserved under the second pad 20, which is convenient for the racket to be assembled on the second workstation, that is, the rubber at the bottom can extend into the bottom of the second pad 20.
[0036] The lower end surface of the upper plate 6 is fixedly connected to the inclined surface block 15 on both sides, and the first pad 4 is provided with a limited opening 11, and the inner wall of the limited opening 11 is an inclined surface. After the inclined surface block 15 and the limited opening 11 cooperate, the two first pads 4 clamp the racket. During die cutting, the position of the first pad 4 is ensured to be correct, thereby improving the quality of die cutting.
[0037] The lower end of the upper plate 6 is fixedly connected with a suspension rod 14, which penetrates the middle plate 5, and the lower end of the suspension rod 14 supports the middle plate 5. After the die cutting is completed, the use of the suspension rod 14 can make the separation of the lower plate 3, the middle plate 5 and the upper plate 6 have enough spacing, which is convenient for taking and placing the racket.
[0038] The lower part of the guide rod 2 is provided with a first spring 9, and the upper end of the first spring 9 supports the lower plate 3. The buffering effect is improved, and the lower plate 3 is also lifted and moved.
[0039] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.
Claims
1. A table tennis racket rubber die-cutting device, characterized in that: It comprises a base (1), the four corners of the upper end of the base (1) are fixedly connected to guide rods (2), and the guide rods (2) are interspersed with a lower plate (3), a middle plate (5) and an upper plate (6) in sequence from bottom to top; An opening is provided in the middle of the middle plate (5), and convex edges (23) are provided on both side walls of the opening; a cutting plate (13) is movably provided below the convex edge (23); a second cutting edge (12) is provided on the upper end surface of the cutting plate (13); and a third cutting edge (16) is provided at the lower end of the upper plate (6); First pads (4) are slidably provided on both sides of the middle plate (5), and the first pads (4) symmetrically clamp the racket; The lower plate (3) is provided with a work station slot, and a through hole is provided at the edge of the work station slot, a second pad (20) is slidably provided in the through hole, a first cutting blade (10) and a fourth cutting blade (17) are provided below and above the second pad (20), respectively, the first cutting blade (10) is fixedly connected to the upper end surface of the base (1), and the fourth cutting blade (17) is fixedly connected to the lower end surface of the cutting plate (13).
2. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: The upper end of the guide rod (2) is fixedly connected to an upper top plate (7), the middle portion of the upper end of the upper top plate (7) is fixedly connected to a hydraulic cylinder (8), and an output end extending from the lower end of the hydraulic cylinder (8) is fixedly connected to the upper plate (6).
3. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: The lower end of the convex edge (23) is fixedly connected to a second limiting column (22), the second limiting column (22) penetrates the cutting plate (13), and the lower end of the second limiting column (22) supports the cutting plate (13), grooves are provided on both sides of the cutting plate (13), and spring sheets (21) are provided in the grooves, and the upper end of the spring sheets (21) abuts against the convex edge (23).
4. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: A first limiting column (18) is arranged in the through hole on the lower plate (3), and both ends of the second pad (20) are slidably arranged on the first limiting column (18). A second spring (19) is inserted through the first limiting column (18), and the second spring (19) pushes the second pad (20) upwards.
5. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: Both sides of the lower end surface of the upper plate (6) are fixedly connected to inclined surface blocks (15); a limiting opening (11) is provided on the first pad (4); and an inner wall of the limiting opening (11) is an inclined surface; when the inclined surface blocks (15) and the limiting opening (11) are matched, the two first pads (4) clamp the racket.
6. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: The lower end of the upper plate (6) is fixedly connected to a suspension rod (14), the suspension rod (14) penetrates the middle plate (5), and the lower end of the suspension rod (14) supports the middle plate (5).
7. A table tennis racket rubber die-cutting device according to claim 1, characterized in that: A first spring (9) is provided at the lower part of the guide rod (2), and the upper end of the first spring (9) supports the lower plate (3).