A laser engraving apparatus for coin grading cartridge engraving
By incorporating structures such as sliders, vertical plates, and curved plates into the laser engraving equipment, the problem of engraving position deviation in rating boxes has been solved, achieving precise engraving and wide applicability, and enhancing anti-counterfeiting effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG PI MOLDING TECHNOLOGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-29
AI Technical Summary
When using ordinary laser engraving equipment to engrave rating boxes, the engraving position is prone to deviation due to differences in specifications and shapes, resulting in poor engraving effects.
A laser engraving device for engraving coin grading boxes was designed. By setting a first slider, a second slider, a first groove, a second groove, a first upright plate, and a second upright plate, the device can accurately position and fix the grading box. The combination of vertical slider, arc plate, and bolts can accommodate grading boxes of different heights and shapes.
It enables precise engraving of rating boxes, increases the applicability of the equipment, improves the accuracy and fixation of the engraving position, and reduces the difficulty of counterfeiting.
Smart Images

Figure CN224294966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser engraving technology, specifically to a laser engraving device for engraving coin grading boxes. Background Technology
[0002] Laser engraving is a process that uses CNC technology as its foundation and laser as its processing medium. The physical transformation of the material under laser irradiation—the instantaneous melting and vaporization—allows the laser engraving to achieve its processing purpose. Laser engraving is the use of laser technology to write text on objects. The text engraved by this technology leaves no scratches, the surface of the object remains smooth, and the text does not wear off.
[0003] Ordinary commemorative coins typically use anti-counterfeiting labels, which are sealed with the coin in a transparent grading box. However, criminals can damage the grading box, remove the coin, replace it with a counterfeit, reseal the anti-counterfeiting label and the counterfeit coin, and sell it, making it highly deceptive. Laser engraving inside the grading box is a viable solution. The anti-counterfeiting information is engraved onto the grading box using laser engraving equipment. Once the grading box is damaged, it cannot be reused, increasing the difficulty of counterfeiting. Furthermore, using ordinary laser engraving equipment to engrave grading boxes can result in inaccurate engraving positions due to variations in their size and shape, leading to poor engraving quality. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a laser engraving device for engraving coin grading boxes, which solves the problem of engraving position deviations when using ordinary laser engraving equipment to engrave grading boxes due to differences in their specifications and shapes.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a laser engraving device for engraving coin grading boxes; comprising a worktable and a laser head, a work plate being provided on the worktable, a grading box being placed on the work plate, two first sliding grooves and two second sliding grooves being provided at the bottom of the work plate, a first slider being slidably installed in the first sliding groove, a second slider being slidably installed in the second sliding groove, a first upright plate being fixedly installed on the top of the first slider, a second upright plate being fixedly installed on the top of the second slider, and a contact part for abutting the grading box being installed on both the first and second upright plates, and a vertical groove being provided on both the first and second upright plates, with the contact part slidingly connected to the inner wall of the vertical groove along the vertical direction.
[0006] Preferably, two first slides form a group, the two first slides are on a straight line, and the two first uprights are arranged opposite each other; two second slides form a group, the two second slides are on a straight line, and the two second uprights are arranged opposite each other.
[0007] Preferably, the abutting part includes a vertical slider, one end of which is slidably connected to the inner wall of the vertical groove, and the other end is connected to two arc plates. An arc block is fixedly connected to the end of the arc plate away from the vertical slider. A first sphere is provided between the two arc blocks. The inner wall of the arc block can abut against the outer wall of the first sphere. A connecting rod is fixedly connected to the first sphere, and a second sphere is fixedly connected to the other end of the connecting rod. The second sphere can abut against the rating box.
[0008] Preferably, bolts are provided on the arc plates, and the bolts pass through the two arc plates and can tighten the two arc plates.
[0009] Preferably, a vertical pole is fixedly installed on the workbench, a first driving block is slidably installed on the vertical pole, a first crossbar is provided on one side of the first driving block, one end of the first crossbar is fixedly connected to the first driving block, a second driving block is slidably installed on the outside of the first crossbar, a second crossbar is connected to the bottom of the second driving block, a third driving block is slidably installed on the outside of the second crossbar, and a laser head is connected to the bottom of the third driving block.
[0010] Preferably, the second sphere is made of rubber.
[0011] Preferably, both the first and second uprights are provided with air pipes at their tops, and a sliding sleeve is slidably installed on the outside of the air pipes, with the sliding sleeve being fixedly connected to the top of the first or second upright.
[0012] This invention provides a laser engraving device for engraving coin grading boxes. Compared with the prior art, it has the following advantages:
[0013] 1. This laser engraving equipment for engraving coin grading boxes comprises a first slider, a second slider, a first groove, a second groove, a first upright plate, and a second upright plate. The first slider and the second slider slide along the first groove and the second groove respectively, thereby driving the first upright plate and the second upright plate closer to the grading box. After the second spheres on the first upright plate and the second upright plate come into contact with the grading box, they limit and fix the grading box, placing the grading box in a predetermined position. Then, laser engraving is performed on the grading box, resulting in better engraving effect and more precise engraving position.
[0014] 2. This laser engraving equipment for engraving coin grading boxes features a vertical slider and a vertical groove. The vertical slider can slide up and down along the vertical groove. When the vertical slider moves, it drives the arc block, arc plate, first sphere, connecting rod, and second sphere to move, allowing the second sphere to work at different heights. This enables the equipment to engrave grading boxes of different heights, increasing the applicability of the equipment.
[0015] 3. This laser engraving equipment for engraving coin grading boxes comprises arc blocks, arc plates, a first sphere, a connecting rod, bolts, and a second sphere. Loosening the bolts increases the gap between the arc blocks, allowing adjustment of the position of the connecting rod, which in turn adjusts the position of the second sphere. Tightening the bolts reduces the distance between the two arc blocks, clamping the first sphere. This allows the abutment part to fix the grading box from different angles and positions, and it can fix grading boxes of different shapes, further increasing the applicability of this equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the working board of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the working plate of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the first upright plate of this utility model.
[0020] In the diagram: 1. Workbench; 2. Laser head; 3. Work plate; 4. First vertical plate; 5. Second vertical plate; 6. First slide groove; 7. First slider; 8. Vertical groove; 9. Vertical slider; 10. Arc block; 11. First sphere; 12. Connecting rod; 13. Second sphere; 14. Bolt; 15. Second slide groove; 16. Second slider; 17. Vertical rod; 18. First drive block; 19. First crossbar; 20. Second drive block; 21. Second crossbar; 22. Third drive block; 23. Arc plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4This utility model provides a technical solution: a laser engraving device for engraving coin grading boxes, including a worktable 1 and a laser head 2. A work plate 3 is provided on the worktable 1, and the grading box is placed on the work plate 3. Two first sliding grooves 6 and two second sliding grooves 15 are formed at the bottom of the work plate 3. A first slider 7 is slidably installed in the first sliding groove 6, and a second slider 16 is slidably installed in the second sliding groove 15. A first upright plate 4 is fixedly installed on the top of the first slider 7, and a second upright plate 5 is fixedly installed on the top of the second slider 16. Both the first upright plate 4 and the second upright plate 5 are equipped with abutting parts for abutting the grading box. Vertical grooves 8 are formed on both the first upright plate 4 and the second upright plate 5, and the abutting parts vertically engage with the grooves 8. The wall is slidably connected. Two first sliding grooves 6 form a group, and the two first sliding grooves 6 are on a straight line. Two first upright plates 4 are arranged opposite each other. Two second sliding grooves 15 form a group, and the two second sliding grooves 15 are on a straight line. Two second upright plates 5 are arranged opposite each other. The rating box is placed on the working plate 3. The first slider 7 and the second slider 16 slide along the first sliding groove 6 and the second sliding groove 15 respectively, thereby driving the first upright plate 4 and the second upright plate 5 to approach the rating box. After the second ball 13 on the first upright plate 4 and the second upright plate 5 contacts the rating box, it limits and fixes the rating box, so that the rating box is in a predetermined position. Then, the rating box is laser engraved to make the engraving effect of the rating box better and the engraving position more precise.
[0023] The contact part includes a vertical slider 9, one end of which is slidably connected to the inner wall of the vertical groove 8, and the other end is connected to two arc plates 23. An arc block 10 is fixedly connected to the end of the arc plate 23 away from the vertical slider 9. A first sphere 11 is provided between the two arc blocks 10. The inner wall of the arc block 10 can abut against the outer wall of the first sphere 11. A connecting rod 12 is fixedly connected to the first sphere 11, and a second sphere 13 is fixedly connected to the other end of the connecting rod 12. The second sphere 13 can abut against the rating box. A bolt 14 is provided on the arc plate 23. The bolt 14 passes through the two arc plates 23 and can tighten the two arc plates 23. The vertical slider 9 can slide up and down along the vertical groove 8. When the vertical slider 9 moves, it drives the arc block 10, the arc plate 23, the first sphere 11, and the connecting rod 12. 2. The second ball 13 moves, allowing it to work at different heights, thus enabling the device to engrave grading boxes of different heights and increasing its applicability. After loosening bolt 14, the gap between the two arc plates 23 increases, and the gap between the two arc blocks 10 also increases. At this time, the position of connecting rod 12 can be adjusted, thereby adjusting the position of the second ball 13. Then, bolt 14 is tightened, tightening the two arc plates 23 and reducing the distance between the two arc blocks 10, thereby clamping the first ball 11. This allows the abutment part to fix the grading box from different angles and positions, and it can fix grading boxes of different shapes, further increasing the applicability of the device.
[0024] A vertical rod 17 is fixedly installed on the workbench 1. A first driving block 18 is slidably installed on the vertical rod 17. A first horizontal bar 19 is provided on one side of the first driving block 18. One end of the first horizontal bar 19 is fixedly connected to the first driving block 18. A second driving block 20 is slidably installed on the outside of the first horizontal bar 19. A second horizontal bar 21 is connected to the bottom of the second driving block 20. A third driving block 22 is slidably installed on the outside of the second horizontal bar 21. A laser head 2 is connected to the bottom of the third driving block 22. When engraving, the first driving block 18 can slide up and down along the vertical rod 17, the second driving block 20 slides along the first horizontal bar 19, and the third driving block 22 slides along the second horizontal bar 21, thereby adjusting the position of the laser head 2 to facilitate engraving by the laser head 2.
[0025] The second sphere 13 is made of rubber. When the second sphere 13 comes into contact with the grading box, it can better fix the grading box and prevent it from sliding, which would cause the grading box to shift and affect the engraving effect.
[0026] Both the first upright plate 4 and the second upright plate 5 are equipped with air pipes 24 at their tops. A sliding sleeve 25 is slidably installed on the outside of the air pipe 24, and the sliding sleeve 25 is fixedly connected to the top of the first upright plate 4 or the second upright plate 5. During laser engraving, the powder generated during engraving is drawn away through the air pipe 24. Since the air pipe 24 is connected to the first upright plate 4 or the second upright plate 5 through the sliding sleeve 25, the position of the air pipe 24 can be moved during engraving to increase the powder collection effect.
[0027] During operation, the rating box is placed on the work plate 3. The first slider 7 and the second slider 16 slide along the first slide groove 6 and the second slide groove 15 respectively, thereby driving the first upright plate 4 and the second upright plate 5 to approach the rating box. After the second ball 13 on the first upright plate 4 and the second upright plate 5 contacts the rating box, it limits and fixes the rating box, so that the rating box is in a predetermined position. Then, the rating box is laser engraved, so that the engraving effect of the rating box is better and the engraving position is more precise.
[0028] During engraving, the first drive block 18 can slide up and down along the upright 17, the second drive block 20 can slide along the first horizontal bar 19, and the third drive block 22 can slide along the second horizontal bar 21, thereby adjusting the position of the laser head 2 to facilitate engraving by the laser head 2.
[0029] The vertical slider 9 can slide up and down along the vertical groove 8. When the vertical slider 9 moves, it drives the arc block 10, arc plate 23, first ball 11, connecting rod 12 and second ball 13 to move, so that the second ball 13 can work at different heights, thereby enabling the equipment to engrave rating boxes of different heights and increasing the applicability of the equipment.
[0030] After loosening bolt 14, the gap between the two arc plates 23 increases, and the gap between the two arc blocks 10 also increases. At this time, the position of the connecting rod 12 can be adjusted, and then the position of the second ball 13 can be adjusted. Then, tighten bolt 14 to tighten the two arc plates 23, and the distance between the two arc blocks 10 also decreases, thereby clamping the first ball 11. This allows the abutment part to be fixed from different angles and positions when fixing the rating box, and it can fix rating boxes of different shapes, further increasing the applicability of this equipment.
[0031] An external exhaust fan is connected to the air pipe 24. During laser engraving, the powder generated during engraving is drawn away through the air pipe 24. Since the air pipe 24 is connected to the first vertical plate 4 or the second vertical plate 5 through the sliding sleeve 25, the position of the air pipe 24 can be moved during engraving to increase the powder collection effect.
[0032] The rating boxes, which are engraved using a laser of specific power, are more difficult to counterfeit, thus reducing the probability of forgery.
[0033] The second sphere 13 is made of rubber. When the second sphere 13 comes into contact with the grading box, it can better fix the grading box and prevent it from sliding, which would cause the grading box to shift and affect the engraving effect.
[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A laser engraving device for engraving coin grading boxes, comprising a worktable (1) and a laser head (2), characterized in that: The workbench (1) is provided with a work plate (3), and the rating box is placed on the work plate (3). The bottom of the work plate (3) has two first slide grooves (6) and two second slide grooves (15). A first slider (7) is slidably installed in the first slide groove (6), and a second slider (16) is slidably installed in the second slide groove (15). A first upright plate (4) is fixedly installed on the top of the first slider (7), and a second upright plate (5) is fixedly installed on the top of the second slider (16). Both the first upright plate (4) and the second upright plate (5) are provided with abutting parts for abutting the rating box. Both the first upright plate (4) and the second upright plate (5) are provided with vertical grooves (8). The abutting parts are slidably connected to the inner wall of the vertical grooves (8) along the vertical direction.
2. The laser engraving equipment for engraving coin grading boxes according to claim 1, characterized in that: Two first slides (6) are a group, the two first slides (6) are on a straight line, the two first uprights (4) are set opposite each other, the two second slides (15) are a group, the two second slides (15) are on a straight line, and the two second uprights (5) are set opposite each other.
3. The laser engraving equipment for engraving coin grading boxes according to claim 1, characterized in that: The contact part includes a vertical slider (9), one end of which is slidably connected to the inner wall of the vertical groove (8), and the other end is connected to two arc plates (23). An arc block (10) is fixedly connected to the end of the arc plate (23) away from the vertical slider (9). A first sphere (11) is provided between the two arc blocks (10). The inner wall of the arc block (10) can abut against the outer wall of the first sphere (11). A connecting rod (12) is fixedly connected to the first sphere (11). A second sphere (13) is fixedly connected to the other end of the connecting rod (12). The second sphere (13) can abut against the rating box.
4. The laser engraving equipment for engraving coin grading boxes according to claim 3, characterized in that: Bolts (14) are provided on the arc plate (23), and the bolts (14) pass through the two arc plates (23) and can tighten the two arc plates (23).
5. The laser engraving equipment for engraving coin grading boxes according to claim 1, characterized in that: A vertical rod (17) is fixedly installed on the workbench (1). A first driving block (18) is slidably installed on the vertical rod (17). A first horizontal bar (19) is provided on one side of the first driving block (18). One end of the first horizontal bar (19) is fixedly connected to the first driving block (18). A second driving block (20) is slidably installed on the outside of the first horizontal bar (19). A second horizontal bar (21) is connected to the bottom of the second driving block (20). A third driving block (22) is slidably installed on the outside of the second horizontal bar (21). A laser head (2) is connected to the bottom of the third driving block (22).
6. The laser engraving equipment for engraving coin grading boxes according to claim 3, characterized in that: The second sphere (13) is made of rubber.
7. The laser engraving equipment for engraving coin grading boxes according to claim 1, characterized in that: The top of the first upright plate (4) and the second upright plate (5) are provided with air pipes (24), and a sliding sleeve (25) is slidably installed on the outside of the air pipes (24). The sliding sleeve (25) is fixedly connected to the top of the first upright plate (4) or the second upright plate (5).