Base for glass polishing

Abstract

A base for glass polishing comprises a nylon bottom plate and a limiting assembly. The upper surface of the nylon bottom plate is sunken to form a glass clamping area, a plurality of bosses are arranged in the glass clamping area, each boss is provided with a through hole and a penetrating hole surrounding the through hole, the penetrating holes comprise first-stage holes penetrating through the upper surfaces of the bosses and second-stage holes penetrating through the lower surface of the nylon bottom plate, and the minimum width of the second-stage holes is larger than the maximum width of the first-stage holes; a plurality of limiting grooves extending from the lower surface of the nylon bottom plate to the upper surface are formed in the inner surface of the through hole; the limiting assembly comprises a plurality of TPU rubber plates correspondingly arranged on the bosses, each TPU rubber plate comprises a supporting part embedded into the corresponding through hole and an annular connecting part surrounding and fixedly connected with the supporting part, the upper surface of each annular connecting part is flush with the upper surface of the corresponding supporting part, and the lower surface of each annular connecting part is attached to the upper surface of the corresponding boss. An air hole is formed in the supporting part, a plurality of clamping blocks correspondingly embedded into the limiting grooves are arranged on the lower surface of the supporting part, and a plurality of limiting columns corresponding to the penetrating holes and matched with the penetrating holes in shape are arranged on the lower surface of the annular connecting part.

Description

Technical Field

[0001] This utility model relates to the field of glass polishing technology, and in particular to a glass polishing base. Background Technology

[0002] In the processing of curved glass (such as mobile phone glass covers), the glass surface needs to be polished to improve its roughness and meet the requirements of curved glass applications. During glass polishing, a polishing base is used to clamp the glass, positioning it and protecting it from damage caused by external impacts. Currently, common glass polishing bases in the industry are made by splicing and cutting various materials such as fiberboard and white polishing leather. White polishing leather has a short lifespan, becoming unusable after about 10 days, requiring frequent base replacements, increasing consumable costs during glass polishing, wasting polishing time, and affecting glass polishing capacity. Furthermore, for polishing bases made by splicing and cutting, the joints are glued together, resulting in a weak structure. During use, the glued areas are prone to cracking, leading to the scrapping of the polishing base, further shortening its lifespan and affecting the normal operation of glass polishing. Utility Model Content

[0003] Therefore, it is necessary to provide a glass polishing base with a robust structure and long service life to address the above-mentioned shortcomings.

[0004] A glass polishing base includes a nylon base plate for fixing to a polishing machine table and a limiting component for fixing to the nylon base plate;

[0005] The upper surface of the nylon base plate is recessed to form a glass clamping area. Multiple protrusions are spaced apart in the glass clamping area. Each protrusion has a through hole in the center that penetrates the upper and lower surfaces of the nylon base plate. The edge of each protrusion has several through holes surrounding the through hole. The through holes include a primary hole that penetrates the upper surface of the protrusion and a secondary hole located below the primary hole and communicating with the primary hole and the lower surface of the nylon base plate, respectively. The maximum width of the primary hole is less than the minimum width of the secondary hole. The inner surface of the through hole has several limiting grooves that extend from the lower surface of the nylon base plate to the upper surface of the nylon base plate. At least some of the limiting grooves have a depth less than the thickness of the nylon base plate.

[0006] The limiting component includes multiple TPU plates corresponding to each boss. Each TPU plate includes a support portion embedded in a through hole and an annular connecting portion surrounding and fixedly connected to the support portion. The upper surface of the annular connecting portion is flush with the upper surface of the support portion, and the lower surface of the annular connecting portion is in contact with the upper surface of the boss. The support portion has air holes for communicating with an external vacuum device and forming a glass adsorption area above the boss. The lower annular side of the support portion has several locking blocks corresponding to each limiting groove. The outer annular edge of the lower surface of the annular connecting portion has several limiting posts corresponding to each through hole. The outer contour shape of the limiting posts is adapted to the inner contour shape of the through hole.

[0007] In one embodiment, the upper surface of the support is provided with an air guide groove, and the air holes include a plurality of first air guide holes formed at the bottom of the air guide groove and penetrating the lower surface of the support, and a plurality of second air guide holes located beside the air guide groove and penetrating the upper and lower surfaces of the support.

[0008] In one embodiment, the air guide grooves extend along a grid-shaped path, a sun-shaped path, or an eye-shaped path on the upper surface of the support. The air guide grooves divide the upper surface of the support to form a plurality of spaced protrusions, and the second air guide hole is opened on the protrusions.

[0009] In one embodiment, the first air guide hole has an L-shaped or T-shaped structure, and the second air guide hole has a strip-shaped structure.

[0010] In one embodiment, the support, the annular connecting part, the locking block, and the limiting post are integrally formed.

[0011] In one embodiment, the height of the upper surface of the boss is lower than the height of the upper surface of the nylon base plate.

[0012] In one embodiment, the primary hole is a circular hole, an elliptical hole, or a semi-circular hole, and the secondary hole is a circular hole, an elliptical hole, or a semi-circular hole.

[0013] In one embodiment, the nylon base plate and the TPU sheet are integrally injection molded.

[0014] In one embodiment, the nylon base plate is a circular plate structure, and the glass clamping area is a cross-shaped structure.

[0015] In one embodiment, the edge of the nylon base plate has multiple mounting notches distributed along a circular path.

[0016] The glass polishing base of this invention comprises a nylon base plate and a TPU adhesive plate. While ensuring the overall structural strength of the glass polishing base, the TPU adhesive plate directly contacts the glass to be polished, achieving adsorption, positioning, and protection of the glass, preventing scratches or breakage. The TPU adhesive plate has good wear resistance, and the interlocking fit between the nylon base plate and the TPU adhesive plate improves the structural robustness of the glass polishing base. The connection between the nylon base plate and the TPU adhesive plate is not easily separated, extending the lifespan of the glass polishing base to over 40 days, effectively prolonging its service life. The extended replacement cycle of the glass polishing base reduces consumable costs during the glass polishing process, saves labor time, and helps improve glass polishing production capacity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the glass polishing base from one perspective in one embodiment of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the glass polishing base from another perspective in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the nylon base plate from one perspective in one embodiment of the present invention;

[0020] Figure 4 This is a structural schematic diagram of the nylon base plate from another perspective in one embodiment of the present invention;

[0021] Figure 5 for Figure 4 A partially enlarged structural diagram of part A in the illustrated embodiment;

[0022] Figure 6 This is a schematic diagram of the TPU adhesive sheet from one perspective in one embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the TPU adhesive sheet from another perspective in one embodiment of the present invention. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] Please combine Figure 1-7This utility model discloses a robust and long-lasting glass polishing base. The base includes a nylon base plate 100 fixed to a polishing machine table and a limiting component fixed to the nylon base plate 100. The nylon base plate 100, made of nylon material, provides support for the limiting component and the glass to be polished, ensuring the overall structural strength of the glass polishing base and preventing inaccurate glass positioning due to deformation during use. The limiting component contacts the glass to be polished, protecting it from scratches or breakage due to pressure, thus reducing the defect rate in glass polishing operations. In this embodiment, the upper surface of the nylon base plate 100 is recessed to form a glass clamping area 110. Multiple protrusions 120 are spaced apart within the glass clamping area 110, providing connection points with the limiting component for positioning during assembly of the nylon base plate 100 and the limiting component. Each boss 120 has a through hole 130 in the middle that penetrates the upper and lower surfaces of the nylon base plate 100. Each boss 120 has several through holes 140 around the through hole 130. The through holes 140 include a primary hole 141 that penetrates the upper surface of the boss 120 and a secondary hole 142 located below the primary hole 141 and communicating with the primary hole 141 and the lower surface of the nylon base plate 100 respectively. The maximum width in the primary hole 141 is less than the minimum width in the secondary hole 142. In other words, the through hole 140 is actually a stepped hole that is narrower at the top and wider at the bottom. The inner surface of the through hole 130 is provided with a plurality of limiting grooves 150 extending from the lower surface of the nylon base plate 100 to the upper surface of the nylon base plate 100. At least some of the limiting grooves 150 have a depth less than the thickness of the nylon base plate 100. That is to say, all the limiting grooves 150 may have a depth less than the thickness of the nylon base plate 100, or some of the limiting grooves 150 may penetrate the upper and lower surfaces of the nylon base plate 100.

[0026] The limiting component includes multiple TPU plates 200 that are correspondingly set on each boss 120. The TPU plates 200 are made of TPU soft rubber material, which has the advantages of soft texture, good elasticity and wear resistance. In this way, by supporting the glass with the TPU plates 200, the glass surface can be protected and scratched. It can also eliminate the squeezing pressure of the nylon base plate 100 on the glass, reduce the chance of glass breakage, and extend the service life of the TPU plates 200, thereby extending the replacement cycle of the glass polishing base. The TPU sheet 200 includes a support portion 210 embedded in a through hole 130 and an annular connecting portion 220 surrounding and fixedly connected to the support portion 210. The upper surface of the annular connecting portion 220 is flush with the upper surface of the support portion 210, and the lower surface of the annular connecting portion 220 is in contact with the upper surface of the boss 120. In other words, the lower surface of the support portion 210 protrudes from the lower surface of the annular connecting portion 220. The vertical cross-section of the TPU sheet 200 is approximately T-shaped. This facilitates the insertion of the lower part of the support portion 210 into the through hole 130, allowing for a convex-concave fit between the support portion 210 and the inner wall of the through hole 130. At the same time, the contact between the annular connecting portion 220 and the boss 120 limits the TPU sheet 200 along the thickness direction of the nylon base plate 100, preventing the TPU sheet 200 from falling off the nylon base plate 100. By making the upper surface of the annular connecting part 220 flush with the upper surface of the supporting part 210, the contact area between the glass and the TPU adhesive plate 200 is increased. This prevents air leakage at the adsorption site caused by insufficient contact area between the glass and the TPU adhesive plate 200, or by glass displacement due to impact or vibration after the glass is adsorbed onto the TPU adhesive plate 200, thus ensuring the reliability of glass fixation. In this embodiment, the lower surface of the supporting part 210 is flush with the lower surface of the nylon base plate 100, so that when the glass polishing base is installed on the polishing machine table, the lower surface of the glass polishing base can be completely in contact with the working surface of the polishing machine table, improving the stability of the glass polishing base installation. The support portion 210 has vents 230 for communicating with an external vacuum device and forming a glass adsorption area above the boss 120. When positioning the glass, a negative pressure is formed near the vents 230. Under the action of the negative pressure, the glass adheres to the upper surface of the support portion 210 and the upper surface of the annular connecting portion 220. The glass compresses the support portion 210 and the annular connecting portion 220, causing them to deform. This allows the TPU sheet 200 to tightly wrap the glass, protecting it and preventing air leakage. The lower annular side of the support portion 210 has several locking blocks 240 that are correspondingly embedded in the limiting grooves 150. The locking blocks 240 and the limiting grooves 150 are in a concave-convex fit. The outer ring edge of the lower surface of the annular connecting part 220 is provided with a number of limiting posts 250 that are inserted into each through hole 140. The outer contour shape of the limiting post 250 is adapted to the inner contour shape of the through hole 140, that is, the limiting post 250 and the through hole 140 are in concave-convex fit.Preferably, the support portion 210, the annular connecting portion 220, the locking block 240, and the limiting post 250 are integrally formed.

[0027] In this embodiment, the movement of the TPU sheet 200 from the upper surface of the nylon base plate 100 to the lower surface is restricted by the contact between the lower surface of the annular connecting part 220 and the upper surface of the boss 120; the movement of the TPU sheet 200 from the lower surface of the nylon base plate 100 to the upper surface is restricted by the cooperation between the locking block 240 and the limiting groove 150, and the cooperation between the limiting post 250 and the through hole 140; at the same time, the movement of the TPU sheet 200 in the plane containing the upper surface of the nylon base plate 100 is also restricted by the cooperation between the locking block 240 and the limiting groove 150. The connection between the TPU sheet 200 and the nylon base plate 100 is relatively stable, the structure of the glass polishing base is stable, and it is beneficial to extend its service life.

[0028] To improve the processing and assembly efficiency of the glass polishing base, in one embodiment, the nylon base plate 100 and the TPU sheet 200 are integrally injection molded. Thus, by injection molding and overmolding the TPU sheet 200 onto the nylon base plate 100, a TPU sheet 200 fixedly connected to the nylon base plate 100 can be obtained, saving the processes and time of splicing and cutting various materials, and improving the processing and assembly efficiency of the glass polishing base. In this embodiment, the nylon base plate 100 has a circular plate structure, and the glass clamping area 110 has a cross-shaped structure. By designing the glass clamping area 110 as a cross-shaped structure, the upper surface of the nylon base plate 100 can be utilized to the maximum extent, increasing the number of protrusions 120 and TPU sheets 200 on the nylon base plate 100, facilitating the simultaneous clamping of multiple pieces of glass on the nylon base plate 100, thereby improving glass processing efficiency. Of course, the nylon base plate 100 can also be a rectangular or regular polygonal structure, and the shape design of the glass clamping area 110 can be adjusted according to actual needs, which will not be elaborated further here. In addition, in this embodiment, the edge of the nylon base plate 100 is provided with a plurality of mounting notches 160 along a circular path. The mounting notches 160 are used to insert screws. When the glass polishing base is installed, the screws pass through the mounting notches 160 on the nylon base plate 100 and are inserted into the working surface of the polishing machine. The screw nuts press the edge of the mounting notches 160 to achieve the positioning of the glass polishing base.

[0029] In one embodiment, the height of the upper surface of the boss 120 is lower than the height of the upper surface of the nylon base plate 100. Furthermore, when the TPU sheet 200 is mounted on the nylon base plate 100, the upper surface of the TPU sheet 200 is flush with the upper surface of the nylon base plate 100. That is, the height of the upper surface of the boss 120 is lower than the height of the upper surface of the nylon base plate 100, providing a condition for the upper surface of the TPU sheet 200 to be flush with the upper surface of the nylon base plate 100. Thus, the entire glass polishing base is a plate-like structure with both upper and lower flat surfaces, reducing the gap between adjacent glass polishing bases during storage, thereby reducing the space occupied by the glass polishing base during storage. In this embodiment, the primary hole 141 is a circular hole, an elliptical hole, or a semi-circular hole, and the secondary hole 142 is a circular hole, an elliptical hole, or a semi-circular hole. Preferably, both the primary hole 141 and the secondary hole 142 are semi-circular holes. In this embodiment, the through holes 140 are provided along the edge of the boss 120, and the area enclosed by each through hole 140 is the installation area of ​​the TPU adhesive plate 200, which facilitates the positioning of the connection part between the TPU adhesive plate 200 and the nylon base plate 100 during assembly.

[0030] In one embodiment, the upper surface of the support portion 210 is provided with an air guide groove 260, and the air holes 230 include a plurality of first air guide holes 231 formed on the bottom surface of the air guide groove 260 and penetrating the lower surface of the support portion 210, and a plurality of second air guide holes 232 located beside the air guide groove 260 and penetrating the upper and lower surfaces of the support portion 210. Further, in this embodiment, the air guide groove 260 extends along a grid-like, sun-shaped, or eye-shaped path on the upper surface of the support portion 210, and the air guide groove 260 divides the upper surface of the support portion 210 to form a plurality of spaced protrusions, with the second air guide holes 232 formed on the protrusions. In this embodiment, when the TPU adhesive sheet 200 is connected to an external vacuum device, the negative pressure formed at the second air guide hole 232 adsorbs and positions the center of the glass, while the negative pressure formed at the first air guide hole 231 adsorbs and positions the edge of the glass. By opening an air guide groove 260 on the upper surface of the support 210 and opening the first air guide hole 231 within the air guide groove 260, the first air guide holes 231 can be connected. Thus, a negative pressure is formed throughout the entire air guide groove 260, thereby improving the stability of the adsorption on the glass edge and ensuring that the glass is firmly adhered to the TPU adhesive sheet 200. Furthermore, the first air guide hole 231 has an L-shaped or T-shaped structure, and the second air guide hole 232 has a strip-shaped structure to increase the ventilation area of ​​the TPU adhesive sheet 200.

[0031] The glass polishing base of this invention comprises a nylon base plate 100 and a TPU adhesive plate 200. While ensuring the structural strength of the entire glass polishing base, the TPU adhesive plate 200 directly contacts the glass to be polished, achieving adsorption, positioning, and protection of the glass, preventing scratches or breakage. The TPU adhesive plate 200 has good wear resistance, and the interlocking fit between the nylon base plate 100 and the TPU adhesive plate 200 improves the structural robustness of the glass polishing base. The connection between the nylon base plate 100 and the TPU adhesive plate 200 is not easily separated, extending the lifespan of the glass polishing base to over 40 days. This extended replacement cycle reduces consumable costs during the glass polishing process, saves time, and helps improve glass polishing production capacity.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A base for glass polishing, characterized in that, Includes a nylon base plate for fixing to a polishing machine table and a limiting component for fixing to the nylon base plate; The upper surface of the nylon base plate is recessed to form a glass clamping area. Multiple protrusions are spaced apart in the glass clamping area. Each protrusion has a through hole in the center that penetrates the upper and lower surfaces of the nylon base plate. The edge of each protrusion has several through holes surrounding the through hole. The through holes include a primary hole that penetrates the upper surface of the protrusion and a secondary hole located below the primary hole and communicating with the primary hole and the lower surface of the nylon base plate, respectively. The maximum width of the primary hole is less than the minimum width of the secondary hole. The inner surface of the through hole has several limiting grooves that extend from the lower surface of the nylon base plate to the upper surface of the nylon base plate. At least some of the limiting grooves have a depth less than the thickness of the nylon base plate. The limiting component includes multiple TPU plates corresponding to each boss. Each TPU plate includes a support portion embedded in a through hole and an annular connecting portion surrounding and fixedly connected to the support portion. The upper surface of the annular connecting portion is flush with the upper surface of the support portion, and the lower surface of the annular connecting portion is in contact with the upper surface of the boss. The support portion has air holes for communicating with an external vacuum device and forming a glass adsorption area above the boss. The lower annular side of the support portion has several locking blocks corresponding to each limiting groove. The outer annular edge of the lower surface of the annular connecting portion has several limiting posts corresponding to each through hole. The outer contour shape of the limiting posts is adapted to the inner contour shape of the through hole.

2. The glass polishing base according to claim 1, characterized in that, The upper surface of the support is provided with an air guide groove, and the air holes include a plurality of first air guide holes opened on the bottom surface of the air guide groove and penetrating the lower surface of the support, and a plurality of second air guide holes located on the side of the air guide groove and penetrating the upper and lower surfaces of the support.

3. The glass polishing base according to claim 2, characterized in that, The air guide grooves extend along a grid-shaped, sun-shaped, or eye-shaped path on the upper surface of the support. The air guide grooves divide the upper surface of the support to form multiple protrusions that are spaced apart. The second air guide hole is opened on the protrusion.

4. The glass polishing base according to claim 3, characterized in that, The first air guide hole has an L-shaped or T-shaped structure, and the second air guide hole has a strip-shaped structure.

5. The glass polishing base according to claim 1, characterized in that, The support, annular connecting part, locking block and limiting post are integrally formed.

6. The glass polishing base according to claim 1, characterized in that, The height of the upper surface of the boss is lower than the height of the upper surface of the nylon base plate.

7. The glass polishing base according to claim 1, characterized in that, The primary hole is a circular hole, an elliptical hole, or a semi-circular hole, and the secondary hole is a circular hole, an elliptical hole, or a semi-circular hole.

8. The glass polishing base according to claim 1, characterized in that, The nylon base plate and TPU sheet are integrally injection molded.

9. The glass polishing base according to claim 1, characterized in that, The nylon base plate has a circular plate structure, and the glass clamping area has a cross-shaped structure.

10. The glass polishing base according to claim 1, characterized in that, The edge of the nylon base plate has multiple mounting notches distributed along a circular path.

Images