A device for converting a square sapphire into a round sapphire
By designing an adjustable grinding and limiting structure, the problem of limited applicability of existing sapphire square-to-round conversion devices has been solved, enabling efficient grinding of sapphire crystals of different sizes, simplifying the adjustment steps and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU DEKAI NEW MATERIALS CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-19
AI Technical Summary
The size of the semi-circular arc of the grinding wheel in existing sapphire crystal-to-round conversion devices is fixed and cannot be adjusted according to different sizes of sapphire crystals, thus limiting its applicability.
A sapphire crystal-to-round conversion device was designed, comprising a grinding structure, a limiting structure, an adjustment structure, and a material guiding structure. By adjusting the distance and position between the support wheel and the grinding wheel, it can adapt to the processing of sapphire crystals of different sizes, and automatic adjustment is achieved by using a motor drive and linkage components.
It enables efficient rounding of sapphire crystals of different sizes, reduces vibration and runout, simplifies adjustment steps, and improves the applicability and processing efficiency of the device.
Smart Images

Figure CN224373558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sapphire processing technology, specifically to a device for converting sapphire from square to round. Background Technology
[0002] Sapphire square-to-round conversion is a process that transforms square or irregularly shaped sapphire raw materials into round or cylindrical gemstones through mechanical grinding and polishing.
[0003] Chinese Patent Publication No. CN213917478U discloses a sapphire crystal square-to-round conversion processing device, including a worktable, a grinding wheel mounted on the worktable, a protective cover for covering the grinding wheel, and a conveying mechanism for transporting the processed product; the grinding wheel has semi-circular arcs on both sides, with one side designated as the processing area; the conveying mechanism is located in the processing area. This utility model, through the sapphire crystal square-to-round conversion processing device, achieves shorter processing and grinding time, more thorough grinding, reduced labor intensity, higher pass rate, increased efficiency, and shorter work cycle; converting square sapphire crystals to round shapes using this device can reduce the number of scrapped crystals; converting square sapphire crystals to round shapes using this device can reduce secondary processing time and improve efficiency; the device can modify the specifications and dimensions for square-to-round conversion according to requirements; and the device can be modified to process various round products according to requirements.
[0004] In the aforementioned prior art, the rotation of the grinding wheel can be controlled to rapidly grind a square sapphire crystal using a semi-circular arc on the grinding wheel. However, the size of the semi-circular arc of the grinding wheel is fixed, limiting the size of the sapphire crystals that can be processed. Furthermore, it is not convenient to adjust the size of the sapphire crystals according to different sizes, thus limiting its applicability. Utility Model Content
[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a sapphire square-to-round conversion device, thereby solving the problem mentioned in the background art that the size of the semi-circular arc of the grinding wheel is fixed and not easy to adjust according to sapphire crystals of different sizes, thus limiting its applicability.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A sapphire squaring-to-round conversion device, comprising:
[0008] Support frame;
[0009] A rounded structure, arranged on a support frame, is used to round the square sapphire pillars;
[0010] A limiting structure, arranged on the support frame, is used in conjunction with the rounded structure to limit the position of the sapphire pillar;
[0011] An adjustment structure is arranged on the rounding structure and the limiting structure to adjust the position of the rounding structure and the limiting structure;
[0012] The material guiding structure, arranged on the adjusting structure, is used to place sapphire material and can move along with the adjusting structure.
[0013] Preferably, the rounding structure includes:
[0014] The movable shaft seat is slidably mounted above the support frame;
[0015] A fixed bearing is positioned above the support frame;
[0016] Two connecting shafts are rotatably mounted inside the movable shaft seat and the fixed shaft seat, respectively.
[0017] The support wheel and the grinding wheel are respectively fixedly sleeved on two connecting shafts;
[0018] The receiving plate is arranged inside the support frame, and is located below the support wheel and the grinding wheel;
[0019] Two sets of drive components are arranged on the two connecting shafts respectively, and are used to drive the two connecting shafts to rotate.
[0020] Preferably, the driving component includes:
[0021] One transmission wheel is fixedly sleeved on one end of the connecting shaft;
[0022] The transmission belt is mounted on the first transmission pulley.
[0023] The second drive wheel is mounted on the drive belt.
[0024] The motor has its output end located on one side of the second transmission wheel, and is used to drive the second transmission wheel to rotate.
[0025] Preferably, the limiting structure includes:
[0026] L-shaped brackets are arranged above the support frame;
[0027] A sliding bracket, which is slidably mounted on top of an L-shaped bracket;
[0028] The adjusting screw is rotatably mounted inside the sliding frame;
[0029] The U-shaped rod is threaded onto the adjusting screw and slidably installed inside the sliding frame;
[0030] A limiting plate is placed below the U-shaped rod, and the limiting plate is located between the support wheel and the grinding wheel;
[0031] A guide assembly, arranged on the sliding frame, is used to guide the sliding frame to slide horizontally.
[0032] Preferably, the guide component includes:
[0033] T-slots are formed inside the sliding frame;
[0034] The T-shaped strip is positioned above the L-shaped bracket and slidably installed inside the T-slot.
[0035] Preferably, the adjustment structure includes:
[0036] The support carriage is slidably installed inside the support frame, and the support carriage is arranged on the movable shaft seat and the corresponding motor.
[0037] The electric actuator is located inside the support frame, and the output end of the electric actuator is located on the support slide.
[0038] The linkage component is arranged on the sliding frame to enable the sliding frame to move along with the support frame.
[0039] Preferably, the linkage component includes:
[0040] A fixed guide rod is positioned on one side of the sliding frame;
[0041] The linkage slide is slidably mounted on the fixed guide rod;
[0042] Both connecting rods are rotatably mounted on the linkage slide, and one end of each connecting rod is rotatably mounted on the movable shaft seat and the fixed shaft seat, respectively.
[0043] Preferably, the material guiding structure includes:
[0044] A U-shaped plate is placed at one end of the fixed guide rod;
[0045] The connecting rod is slidably installed inside the U-shaped plate;
[0046] The guide plate and the connecting plate are respectively arranged at both ends of the connecting slide bar;
[0047] A fixed lead screw is positioned above the U-shaped plate and slidably installed inside the connecting plate;
[0048] Both limit nuts are threaded onto the fixing screw.
[0049] The beneficial effects of this utility model are as follows:
[0050] This invention allows a sapphire square rod to be placed on a guide plate and pushed towards the support wheel and grinding wheel. Two motors are then activated to control the rotation of the support wheel and grinding wheel, performing a rounding operation on the sapphire square rod. The vibration and movement of the sapphire square rod are reduced by the blocking effect of the limiting plate. Furthermore, when processing sapphire square rods of different sizes, the distance between the support wheel and grinding wheel can be adjusted by activating an electric push rod. Simultaneously, with the cooperation of a connecting rod, the sliding frame and limiting plate can move accordingly, ensuring that the limiting plate remains positioned between the support wheel and grinding wheel. This adapts to processing sapphire square rods of different sizes. The adjustment process is simple and quick, avoiding frequent adjustments and corrections, and saving processing time.
[0051] In this invention, when the distance between the support wheel and the grinding wheel changes, the guide plate moves accordingly, ensuring that the end of the guide plate is aligned with the middle of the support wheel and the grinding wheel for material feeding. Furthermore, the heights of both the guide plate and the limiting plate can be adjusted according to the size of the sapphire square bar, further improving the applicability of the device so as to perform rounding processing on sapphire square bars of various sizes. Attached Figure Description
[0052] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0053] Figure 1 A schematic diagram of a sapphire square-to-round conversion device provided in this embodiment of the present invention;
[0054] Figure 2 A partial structural schematic diagram of a sapphire square-to-round conversion device provided in an embodiment of this utility model;
[0055] Figure 3 A schematic diagram of the support carriage structure of a sapphire square-to-round conversion device provided in this embodiment of the present invention;
[0056] Figure 4 A cross-sectional view of the sliding frame of a sapphire square-to-round conversion device provided in this embodiment of the present invention;
[0057] Figure 5 A schematic diagram of the linkage slide structure of a sapphire square-to-round conversion device provided in this embodiment of the present invention;
[0058] Figure 6 A schematic diagram of the guide plate structure of a sapphire square-to-round conversion device provided in an embodiment of this utility model.
[0059] Explanation of reference numerals in the attached figures:
[0060] 1. Support frame; 2. Movable shaft seat; 201. Fixed shaft seat; 202. Connecting shaft; 203. Support wheel; 204. Grinding wheel; 205. Transmission wheel one; 206. Transmission belt; 207. Transmission wheel two; 208. Motor; 209. Receiving plate; 3. L-shaped bracket; 301. Sliding frame; 302. Adjusting screw; 303. U-shaped rod; 304. Limiting plate; 305. T-slot; 306. T-strip; 4. Support slide; 401. Electric push rod; 402. Fixed guide rod; 403. Linkage slide; 404. Connecting rod; 5. U-shaped plate; 501. Connecting slide rod; 502. Guide plate; 503. Fixed screw; 504. Connecting plate; 505. Limiting nut. Detailed Implementation
[0061] 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.
[0062] Example 1:
[0063] like Figures 1 to 6 As shown, this utility model provides a sapphire square-to-round conversion device, including: a support frame 1 and a rounding structure arranged on the support frame 1 for rounding a square sapphire pillar, and a limiting structure arranged on the support frame 1 for limiting the position of the sapphire pillar.
[0064] The grinding structure includes a movable shaft seat 2 slidably mounted above a support frame 1, a fixed shaft seat 201 arranged above the support frame 1, two connecting shafts 202 rotatably mounted inside the movable shaft seat 2 and the fixed shaft seat 201, a support wheel 203 and a grinding wheel 204 respectively fixedly sleeved on the two connecting shafts 202, and a receiving plate 209 arranged inside the support frame 1, located below the support wheel 203 and the grinding wheel 204, and respectively arranged on the two connecting shafts 202 for driving the two connecting shafts 202. The two sets of rotating drive components are used to place the sapphire square rod between the support wheel 203 and the grinding wheel 204. At this time, the two sets of drive components can be used to control the two connecting shafts 202 to rotate inside the movable shaft seat 2 and the fixed shaft seat 201 respectively, thereby driving the support wheel 203 and the grinding wheel 204 to rotate. When the grinding wheel 204 rotates, it can grind the sapphire square rod, while when the support wheel 203 rotates, it can drive the sapphire square rod to roll between the support wheel 203 and the grinding wheel 204, thereby gradually processing the sapphire square rod into a cylinder.
[0065] Furthermore, the drive assembly includes a first transmission wheel 205 fixedly sleeved on one end of the connecting shaft 202, a transmission belt 206 driven on the first transmission wheel 205, a second transmission wheel 207 driven on the transmission belt 206, and a motor 208 with its output end arranged on one side of the second transmission wheel 207 for driving the second transmission wheel 207 to rotate. By turning on the two motors 208, the corresponding second transmission wheel 207 can be driven to rotate, so that the second transmission wheel 207 drives the first transmission wheel 205 to rotate through the transmission cooperation with the transmission belt 206, thereby driving the two connecting shafts 202 to rotate.
[0066] The limiting structure includes an L-shaped bracket 3 arranged above the support frame 1, a sliding frame 301 slidably mounted above the L-shaped bracket 3, an adjusting screw 302 rotatably mounted inside the sliding frame 301, a U-shaped rod 303 threaded onto the adjusting screw 302 and slidably mounted inside the sliding frame 301, and a limiting plate 304 arranged below the U-shaped rod 303. The limiting plate 304 is located between the support wheel 203 and the grinding wheel 204 and is arranged on the sliding frame 301 for guiding... The guide slide 301 is a guide component that slides horizontally. During processing, the sapphire square bar will be located below the limiting plate 304. The vibration and jump of the sapphire square bar can be reduced by the blocking and restriction of the limiting plate 304. By rotating the adjusting screw 302, it can drive the U-shaped rod 303 to move through the threaded engagement with the U-shaped rod 303. The moving U-shaped rod 303 will drive the limiting plate 304 to move up and down, so that the limiting plate 304 can adjust its height according to the sapphire square bar being processed.
[0067] Furthermore, the guide assembly includes a T-slot 305 formed inside the sliding frame 301, and a T-bar 306 arranged above the L-shaped bracket 3 and slidably installed inside the T-slot 305. When the sliding frame 301 moves, it can slide on the T-bar 306 through the T-slot 305, thereby restricting the direction of movement of the sliding frame 301.
[0068] Example 2:
[0069] Based on Example 1, in order to adapt to the processing of sapphire square bars of different sizes, an adjustment structure for adjusting the position of the rounding structure and the limiting structure is arranged on the rounding structure and the limiting structure.
[0070] The adjustment structure includes a support slide 4 slidably installed inside the support frame 1. The support slide 4 is arranged on the movable shaft seat 2 and the corresponding motor 208. An electric push rod 401 is arranged inside the support frame 1, and the output end of the electric push rod 401 is arranged on the support slide 4. A linkage component is arranged on the sliding frame 301 to make the sliding frame 301 move with the support slide 4. When the electric push rod 401 is turned on, it drives the support slide 4 to move. When the support slide 4 moves, it can drive the motor 208 and the movable shaft seat 2 to move, and then drive the support wheel 203 to move through the connecting shaft 202, so as to adjust the distance between the support wheel 203 and the grinding wheel 204.
[0071] Furthermore, the linkage assembly includes a fixed guide rod 402 arranged on one side of the sliding frame 301, a linkage slide 403 slidably mounted on the fixed guide rod 402, and two connecting rods 404 rotatably mounted on the linkage slide 403. One end of the two connecting rods 404 is rotatably mounted on the movable shaft seat 2 and the fixed shaft seat 201, respectively. When the movable shaft seat 2 moves, it will drive the linkage slide 403 to slide vertically on the fixed guide rod 402 through the cooperation of the two connecting rods 404. At the same time, it can drive the fixed guide rod 402 to move. The fixed guide rod 402 then drives the sliding frame 301 to move, so that the limiting plate 304 can move with the change of the distance between the support wheel 203 and the grinding wheel 204, ensuring that the limiting plate 304 is always located in the middle of the support wheel 203 and the grinding wheel 204.
[0072] Example 3:
[0073] Based on Example 1, in order to facilitate the placement of materials into the rounding structure, a material guide structure for placing sapphire materials and capable of moving with the adjustment structure is arranged on the adjustment structure.
[0074] The material guiding structure includes a U-shaped plate 5 arranged at one end of a fixed guide rod 402, a connecting slide rod 501 slidably installed inside the U-shaped plate 5, a material guiding plate 502 and a connecting plate 504 respectively arranged at both ends of the connecting slide rod 501, a fixed lead screw 503 arranged above the U-shaped plate 5 and slidably installed inside the connecting plate 504, and two limiting nuts 505 threaded onto the fixed lead screw 503. In use, the sapphire square rod can be placed on the material guiding plate 502 and pushed toward the support wheel 203 and the grinding wheel 204. The material guiding plate 502 can move according to the change in the distance between the support wheel 203 and the grinding wheel 204. The height of the material guiding plate 502 can be adjusted by rotating the limiting nuts 505, so that the height of the material guiding plate 502 can be adjusted according to the size of the sapphire square rod being processed.
[0075] Working principle:
[0076] In use, the sapphire square rod is placed on the guide plate 502 and pushed towards the support wheel 203 and grinding wheel 204, so that the sapphire square rod moves between the support wheel 203 and grinding wheel 204. At the same time, the sapphire square rod will be located below the limiting plate 304. At this time, by turning on the two motors 208, the corresponding transmission wheel 207 can be driven to rotate. The transmission wheel 207 drives the transmission wheel 205 to rotate through the transmission belt 206. In turn, the two connecting shafts 202 rotate inside the movable shaft seat 2 and the fixed shaft seat 201, respectively. The two connecting shafts 202 will drive the support wheel 203 and the grinding wheel 204 to rotate, respectively. When the grinding wheel 204 rotates, it can grind the sapphire square rod. When the support wheel 203 rotates, it can drive the sapphire square rod to roll between the support wheel 203 and the grinding wheel 204, thereby gradually processing the sapphire square rod into a cylinder. During the processing, the vibration and jumping of the sapphire square rod can be reduced by the blocking and restriction of the limiting plate 304.
[0077] In the diagram, the fixed guide rod 402, the limiting plate 304, and the guide plate 502 are all aligned with the middle positions of the support wheel 203 and the grinding wheel 204. When processing sapphire square bars of different sizes, the electric push rod 401 can be activated to move the support slide 4. When the support slide 4 moves, it can drive the motor 208 and the movable shaft seat 2 to move, which in turn drives the support wheel 203 to move through the connecting shaft 202, so as to adjust the distance between the support wheel 203 and the grinding wheel 204. When the movable shaft seat 2 moves, it will drive one of the wheels. The movement of one link 404 causes one end of the link 404 to rotate on the linkage slide 403, which in turn causes the linkage slide 403 to slide vertically on the fixed guide rod 402. At this time, the linkage slide 403 will cause the other link 404 to rotate on the fixed shaft seat 201. The rotation and movement of the link 404 will then cause the fixed guide rod 402 to move through the linkage slide 403. The fixed guide rod 402 will then cause the sliding frame 301 to move. The continuously moving sliding frame 301 will cause the U-shaped rod 303 to move against the limit. The plate 304 moves, and the moving fixed guide rod 402 drives the guide plate 502 to move via the U-shaped plate 5. This allows the limiting plate 304 and the guide plate 502 to move in accordance with the changes in the distance between the support wheel 203 and the grinding wheel 204, ensuring that the limiting plate 304 and the guide plate 502 are always positioned in the middle of the support wheel 203 and the grinding wheel 204. Furthermore, by rotating the adjusting screw 302, it can drive the U-shaped rod 303 to move through its threaded engagement with the U-shaped rod 303. The moving U-shaped rod 303... This will cause the limiting plate 304 to move up and down. By rotating the limiting nut 505, it can be released from the restriction of the connecting plate 504 through the thread engagement with the fixing screw 503. At this time, pulling the connecting plate 504 can drive the connecting slide rod 501 and the guide plate 502 to move up and down. After adjustment, rotate the limiting nut 505 again to press it against the connecting plate 504 to fix the height of the guide plate 502, so that the height of both the limiting plate 304 and the guide plate 502 can be adjusted according to the size of the sapphire square bar being processed.
[0078] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sapphire square-to-round conversion device, characterized in that, include: Support frame (1); A rounded structure is arranged on a support frame (1) for rounding square sapphire pillars; A limiting structure is arranged on the support frame (1) and used in conjunction with the rounded structure to limit the position of the sapphire pillar; An adjustment structure is arranged on the rounding structure and the limiting structure to adjust the position of the rounding structure and the limiting structure; The material guiding structure, arranged on the adjusting structure, is used to place sapphire material and can move along with the adjusting structure.
2. The sapphire squaring-to-round conversion device as described in claim 1, characterized in that, The rounding structure includes: The movable bearing (2) is slidably mounted above the support frame (1); A fixed bearing (201) is arranged above the support frame (1); Two connecting shafts (202) are rotatably installed inside the movable shaft seat (2) and the fixed shaft seat (201), respectively; The support wheel (203) and the grinding wheel (204) are respectively fixedly sleeved on the two connecting shafts (202); The receiving plate (209) is arranged inside the support frame (1), and the receiving plate (209) is located below the support wheel (203) and the grinding wheel (204).
3. The sapphire squaring-to-round conversion device as described in claim 2, characterized in that, The rounding structure also includes a drive assembly arranged on two connecting shafts (202) for driving the two connecting shafts (202) to rotate, and the drive assembly is arranged in two sets.
4. The sapphire squaring-to-round conversion device as described in claim 3, characterized in that, The driving component includes: Transmission wheel 1 (205) is fixedly sleeved on one end of the connecting shaft (202); The transmission belt (206) is mounted on the transmission wheel (205); The transmission wheel (207) is mounted on the transmission belt (206); The motor (208) has its output end located on one side of the transmission wheel (207) and is used to drive the transmission wheel (207) to rotate.
5. The sapphire squaring-to-round conversion device as described in claim 4, characterized in that, The limiting structure includes: L-shaped bracket (3) is arranged above support frame (1); A sliding bracket (301) is slidably mounted above an L-shaped bracket (3); The adjusting screw (302) is rotatably mounted inside the sliding frame (301); The U-shaped rod (303) is threaded onto the adjusting screw (302) and slidably installed inside the sliding frame (301); A limiting plate (304) is arranged below the U-shaped rod (303), and the limiting plate (304) is located between the support wheel (203) and the grinding wheel (204).
6. The sapphire squaring-to-round conversion device as described in claim 5, characterized in that, The limiting structure also includes a guide component arranged on the sliding frame (301) for guiding the sliding frame (301) to slide in the horizontal direction.
7. The sapphire squaring-to-round conversion device as described in claim 6, characterized in that, The guiding component includes: The T-slot (305) is formed inside the sliding frame (301); T-shaped strip (306) is arranged above L-shaped bracket (3) and slidably installed inside T-shaped groove (305).
8. The sapphire squaring-to-round conversion device as described in claim 1, characterized in that, The adjustment structure includes: The support slide (4) is slidably installed inside the support frame (1), and the support slide (4) is arranged on the movable bearing (2) and the corresponding motor (208); An electric actuator (401) is arranged inside the support frame (1), and the output end of the electric actuator (401) is arranged on the support slide (4); The linkage component is arranged on the sliding frame (301) to enable the sliding frame (301) to move along with the support slide (4).
9. The sapphire squaring-to-round conversion device as described in claim 8, characterized in that, The linkage component includes: A fixed guide rod (402) is arranged on one side of the sliding frame (301); The linkage slide (403) is slidably mounted on the fixed guide rod (402); Both connecting rods (404) are rotatably mounted on the linkage slide (403), and one end of each connecting rod (404) is rotatably mounted on the movable shaft seat (2) and the fixed shaft seat (201), respectively.
10. The sapphire squaring-to-round conversion device as described in claim 1, characterized in that, The material guiding structure includes: A U-shaped plate (5) is arranged at one end of a fixed guide rod (402); The connecting slide rod (501) is slidably installed inside the U-shaped plate (5); The guide plate (502) and the connecting plate (504) are respectively arranged at both ends of the connecting slide rod (501); A fixed lead screw (503) is arranged above the U-shaped plate (5) and slidably installed inside the connecting plate (504); Both limit nuts (505) are threaded onto the fixing screw (503).
Citation Information
Patent Citations
Square-to-circle processing device for sapphire crystal
CN213917478U