Polishing wheel and forming retention device

Abstract

The invention discloses a polishing wheel and relates to the technical field of polishing wheel production, the polishing wheel comprises a wheel body, the wheel body comprises a wheel carrier, a supporting frame and a polishing piece, an annular groove is formed in the radial side wall of the wheel carrier, the supporting frame comprises an inner ring and a plurality of supporting frames, and the supporting frames are annularly distributed on the radial outer wall of the inner ring; the supporting frame is located between the two bent connecting parts to form an attaching part of an arc-shaped structure. The invention further discloses a forming retention device of the polishing wheel, the forming retention device comprises a retention clamp, and the ends, away from the central column, of the two retention belts are attached together to form a forming retention cavity wrapping the polishing wheel. According to the polishing wheel, the supporting frame of the elastic supporting structure is adopted for installing and supporting the multiple layers of polishing pieces, the multiple polishing pieces form an annular polishing structure, in the polishing process, the supporting frame can support the polishing pieces in real time so that the polishing pieces can be rotationally attached to the surface of a workpiece, jumping caused by hard contact is avoided while polishing is achieved, and the polishing quality is improved. The polishing effect is poor, and the polishing time is long.

Description

Technical Field

[0001] The invention relates to the technical field of polishing wheel production, in particular to a polishing wheel and a forming and retaining device. Background Art

[0002] A polishing wheel is a pressed flat wheel made of various cotton cloths with good elasticity, fine felt, silk, deerskin, sisal or horse hair. The above materials are pressed together to form a single wheel piece, and multiple single wheel pieces are stacked together and pressed together to form a polishing wheel. The outer surface of each polishing wheel piece is evenly coated with a layer of polishing oil, and no separate oiling is required during the polishing process.

[0003] The existing polishing wheel uses glue to press multiple polishing wheel pieces (cotton cloth, fine felt, silk, deerskin, sisal or horse hair) into an integral structure. However, in actual use, these polishing wheel pieces are all wearing parts and have a certain flexibility. During the polishing contact process, after long-term polishing and use, it is easy to cause the polishing adhesive that adheres to adjacent layers to age, which in turn causes the polishing wheel pieces to separate and produce gaps, affecting the service life of the polishing wheel. Therefore, there is a need for improvement. Therefore, a polishing wheel and a molding retention device are designed here to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a polishing wheel and a molding retaining device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a polishing wheel, comprising:

[0006] The wheel body comprises a wheel frame, a support frame and a polishing sheet, and the wheel frame is provided with a mounting hole in the axial direction;

[0007] The radial side wall of the wheel frame is provided with an annular groove, the support frame includes an inner ring and a plurality of support frames, the inner ring is sleeved in the annular groove, a connecting block fixedly connected to the radial side wall of the annular groove is fixed to the inner wall of the inner ring, a plurality of support frames are distributed in an annular shape on the radial outer wall of the inner ring, two ends of the support frame are bent to form a bent connection portion fixedly connected to the outer wall of the inner ring, and the support frame is located between the two bent connection portions to form a fitting portion with an arc-shaped structure;

[0008] There are multiple polishing sheets, each of which is fixedly arranged on the outer wall of the fitting portion, and two adjacent polishing sheets are fitted together, so that the multiple polishing sheets form an annular polishing structure;

[0009] The diameter of the annular polishing structure is greater than the diameter of the wheel carrier;

[0010] Each polishing sheet is provided with multiple layers, and each layer of sheets is cross-bonded.

[0011] In a further embodiment, each polishing sheet is provided with a plurality of through holes arranged along the radial direction of the wheel body, the plurality of through holes are grouped in two and are distributed parallelly up and down, and a reinforcing column is fixedly inserted in each through hole, one end of the reinforcing column is fixedly connected to the fitting portion, and the other end is flush with the outermost surface wall of the polishing sheet.

[0012] In a further embodiment, the reinforcing column and the polishing sheet are made of the same material, which is cotton cloth or fine felt.

[0013] In a further embodiment, the bent connection portion is made of elastic material, and the bent connection portions between two adjacent support frames are fitted together.

[0014] In a further embodiment, a tensioning member is further included for tightly fitting the bent connection parts between two adjacent support frames together.

[0015] In a further embodiment, the tensioning member includes two clamping columns and a U-shaped elastic connecting piece fixedly connected between the radial side walls of the two clamping columns, the two bent connecting parts of the support frame are provided with a C-shaped clamping seat at one end of the relative side wall close to the fitting part, and the two bent connecting parts of the support frame are provided with a placement hole at one end of the relative side wall close to the fitting part, and the U-shaped elastic connecting piece is located in the placement holes of the two bent connecting parts that are fitted together, and the two end portions of the U-shaped elastic connecting piece respectively extend out of the openings on one side of the two placement holes away from each other, and the two clamping columns are respectively clamped with the clamping seats on the side walls of the two adjacent bent connecting parts.

[0016] A polishing wheel molding and retaining device, used for retaining the polishing wheel during molding, comprising:

[0017] The retaining fixture comprises a tray, a center column fixed at the upper edge of the tray, and two retaining belts relatively fixed to the radial outer wall of the center column. The two retaining belts are fitted together at one end away from the center column to form a molded retaining cavity wrapped around the polishing wheel.

[0018] In a further embodiment, a support plate is vertically fixed to the upper end surface of the tray, the support plate is arranged opposite to the center column, a threaded adjustment rod is inserted into the horizontal thread on the support plate, one end of the threaded adjustment rod passes through the support plate and is rotatably connected to a push plate, the push plate is located between the support plate and the center column, the bottom wall of the push plate is slidably fitted with the upper end surface of the tray, both side walls of the push plate are provided with notches, the top wall in the notch is rotatably provided with a guide roller, and a guide gap is provided between the radial side wall of the guide roller and the vertical side wall in the notch;

[0019] The polishing wheel to be formed is placed in the forming retention cavity, the retention belt passes through the guide gap, the inner side wall of the retention belt is tightly fitted on the radial side wall of the polishing wheel, and the radial side wall of the guide roller faces the side wall of the center column, fixing the two retention belts.

[0020] In a further embodiment, the outer wall of the end of the retaining belt is provided with a plurality of vertically distributed clamping interfaces, and the radial outer wall of the guide roller is provided with tooth blocks that are clamped with the clamping interfaces.

[0021] In a further embodiment, an end of the retaining band passing through the guide gap is provided with an enlarged portion, and a diameter of the enlarged portion is greater than a width of the guide gap.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The polishing wheel in the present invention uses a support frame with an elastic support structure to install and support multiple layers of polishing sheets. Multiple polishing sheets form an annular polishing structure. As long as the wheel frame rotates, the annular polishing structure can be driven to rotate to perform polishing. During the polishing process, the support frame can support the polishing sheets in real time to rotate and fit the polishing sheets to the surface of the workpiece, thereby achieving polishing while avoiding hard contact that causes jumping during the polishing process, resulting in missing parts of the workpiece surface during polishing, poor polishing effect, and long polishing time.

[0024] 2. Each polishing sheet in the present invention is provided with multiple layers, and each layer is cross-bonded. Through the cross-bonding layer by layer, the polishing sheets are stacked and interwoven together to form a composite structure with excellent mechanical properties. This structure can effectively disperse and resist external forces, thereby improving the tensile strength of the material; it can also improve the bending, shear and tensile resistance of the structure. These cross-covered ring structures can effectively transfer and disperse the load, thereby enhancing the overall performance of the structure, so that the support strength and friction resistance of the entire polishing wheel and the workpiece during contact polishing are improved, and the service life of the polishing wheel is extended.

[0025] 3. The present invention also adjusts the size of the space in the molding retention cavity according to the size of the polishing wheel during the polishing wheel production process by providing a retaining fixture, so as to adapt to the retention molding of polishing wheels of different sizes. After the polishing wheel is bonded and formed, the polishing wheel is fixed in the retaining device. After the adhesive is cured, the space of the molding retention cavity is expanded to facilitate the rapid removal of the polishing wheel. Compared with the molding retention cavity with non-adjustable size, its space size can be quickly adjusted, the adaptation range is wide, and it can be quickly clamped and released, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the wheel structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the wheel frame structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the assembly structure of the polishing sheet and the support frame structure of the present invention;

[0029] Figure 4It is a schematic diagram of the support frame structure of the present invention;

[0030] Figure 5 It is a partial cross-sectional view of the support frame of the present invention;

[0031] Figure 6 It is a schematic diagram of the disassembly of the tensioning member and the clamping seat of the present invention;

[0032] Figure 7 It is a deformation diagram of the card connector of the present invention;

[0033] Figure 8 It is a schematic diagram of the separation of the polishing sheet and the reinforcing column of the present invention;

[0034] Fig. 9 It is a structural schematic diagram of the reinforcement column of the present invention installed on the support frame;

[0035] Fig.10 It is a schematic diagram of the structure of the retaining clamp of the present invention;

[0036] Fig.11 It is a schematic diagram of the local structure of the retaining clamp of the present invention;

[0037] Fig.12 It is a side view of the local structure of the retaining clamp of the present invention.

[0038] In the figure: 1. wheel frame; 11. annular groove; 2. support frame; 21. bending connection part; 22. placement hole; 23. snap-in seat; 3. polishing sheet; 31. reinforcement column; 32. insertion hole; 4. inner ring; 41. connecting block; 5. clamping column; 51. U-shaped elastic connecting sheet; 6. tray; 61. center column; 62. retaining belt; 63. clamping interface; 64. expansion part; 65. support plate; 66. push plate; 67. guide roller; 68. threaded adjustment rod; 69. tooth block. DETAILED DESCRIPTION

[0039] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1, this embodiment provides a polishing wheel, comprising: a wheel body, the wheel body comprising a wheel frame 1, a support frame and a polishing sheet 3, the wheel frame 1 is axially provided with a mounting hole, such as Figure 1 and Figure 2As shown, the mounting hole is plugged into the power shaft of the polishing machine, and after being tightly sleeved with the power shaft through a fixing cap, it rests on the axial side wall of the wheel frame 1 to fix the wheel frame 1. After the polishing machine is started, the power shaft rotates to drive the wheel frame 1 to rotate, and then drives the entire wheel body to rotate to perform the polishing operation.

[0041] An annular groove 11 is provided on the radial side wall of the wheel frame 1, and the support frame includes an inner ring 4 and a plurality of support frames 2. The inner ring 4 is sleeved in the annular groove 11, and a connecting block 41 fixedly connected to the inner radial side wall of the annular groove 11 is fixed on the inner wall of the inner ring 4. The plurality of support frames 2 are distributed in an annular shape on the radial outer wall of the inner ring 4, and the two ends of the support frames 2 are bent to form a bent connection portion 21 fixedly connected to the outer wall of the inner ring 4, and the support frames 2 are located between the two bent connection portions 21 to form a fitting portion of an arc-shaped structure; Figure 2 , Figure 3 and Figure 4 As shown, there are multiple polishing sheets 3, each polishing sheet 3 is fixedly arranged on the outer wall of the fitting part, and two adjacent polishing sheets 3 are fitted together. Multiple polishing sheets 3 form an annular polishing structure, and the wheel frame 1 rotates, driving the support frame 2 and the polishing sheets 3 installed on the outer wall of the fitting part to rotate synchronously through the connecting block 41. The annular polishing structure can form an annular polishing path by rotating, and the polishing operation can be performed by contacting the surface wall of the workpiece.

[0042] Here, the bending connection part 21 is made of elastic material, and a stainless steel spring sheet can be used. The bending connection parts 21 between two adjacent support frames 2 are fitted together. Because of the two bending connection parts 21, the entire support frame of the support frame 2 has the characteristic of elastic deformation, and the polishing sheet 3 on the fitting part between the two bending connection parts 21 is fitted with the surface wall of the workpiece to be polished in real time. When the polishing sheet 3 on the surface wall of the fitting part contacts the workpiece for polishing, the polishing sheet 3 forms a contact extrusion force with the surface wall of the workpiece by utilizing the characteristics of the bending connection part 21 with elastic characteristics. Multiple polishing sheets 3 form an annular polishing structure. As long as the wheel frame 1 rotates, it can drive the annular polishing structure to rotate and perform polishing. During the polishing process, the support frame can support the polishing sheet 3 in real time, rotate and fit the polishing sheet 3 with the surface of the workpiece, and achieve polishing while avoiding the phenomenon of jumping during the polishing process caused by hard contact, resulting in missed parts in the polishing of the workpiece surface, poor polishing effect, and long polishing time.

[0043] It should be noted that the diameter of the annular polishing structure is larger than the diameter of the wheel frame 1. When the annular polishing structure rotates, the outermost polishing sheet 3 contacts the surface wall of the workpiece for polishing operation, which will not cause the wheel frame 1 to contact the surface wall of the workpiece, causing accidental touch and causing the wheel frame 1 to scratch the surface wall of the workpiece.

[0044] like Figure 8As shown, each polishing sheet 3 is provided with multiple layers, and each layer of the sheet is cross-bonded. Through the cross-bonding layer by layer, the polishing sheets 3 are stacked and interwoven together to form a composite structure with excellent mechanical properties. This structure can effectively disperse and resist external forces, thereby improving the tensile strength of the material. It can also improve the bending, shear and tensile resistance of the structure. These cross-covered ring structures can effectively transfer and disperse the load, thereby enhancing the overall performance of the structure, making the support strength and friction resistance between the entire polishing wheel and the workpiece during contact polishing, and extending the service life of the polishing wheel.

[0045] like Figure 8 and Fig. 9 As shown, each polishing sheet 3 is provided with a plurality of interpenetrating holes 32 arranged along the radial direction of the wheel body, and the plurality of interpenetrating holes 32 are arranged in a group of two and are arranged in parallel up and down. A reinforcing column 31 is fixedly inserted in each interpenetrating hole 32, and one end of the reinforcing column 31 is fixedly connected to the fitting portion, and the other end is flush with the outermost surface wall of the polishing sheet 3. The reinforcing column 31 is made of the same material as the polishing sheet 3, which is cotton cloth or fine felt. Each polishing sheet 3 is interpenetrated and fixedly supported by a plurality of reinforcing columns 31 distributed along the radial direction of the wheel frame 1, and the interpenetrating positions are glued with glue, so that the reinforcing column 31 can fill the space of the interpenetrating hole 32, so that the entire polishing sheet 3 can form a complete arc-shaped plane, and there is no missing part during the polishing process. In addition, the reinforcing column 31 plays a role in enhancing the supporting strength of the polishing sheet 3 between the multiple layers of polishing sheets 3, ensuring that the deformation of the polishing sheet 3 is not too large during the polishing process, and avoiding excessive deformation of the contact surface when the workpiece contacts to affect the polishing effect.

[0046] Furthermore, the other end of the reinforcing column 31 is flush with the outermost surface wall of the polishing sheet 3. Figure 8 As shown, the length of the reinforcing column 31 is prevented from being too long. When the reinforcing column 31 extends out of the outermost polishing sheet 3 and contacts the workpiece, a knocking situation occurs, causing the polishing wheel to jump, thereby affecting the polishing effect.

[0047] In this embodiment, further, it also includes a tensioning member for tightly fitting the bent connection part 21 between two adjacent support frames 2 together. Through the tensioning member, it is ensured that during the polishing process, the bent connection part 21 between the two adjacent support frames 2 is tightly fitted together, thereby avoiding a large gap between two adjacent polishing sheets 3, which causes the diameter of the annular polishing structure formed to become larger or smaller when the polishing sheet 3 rotates, thereby making it impossible for the polishing sheet 3 to make soft contact with the surface wall of the tool, resulting in a jumping contact situation, which makes the entire polishing process shake more violently and cannot perform normal polishing operations.

[0048] Specifically, Figure 5 , Figure 6 and Figure 7As shown, the tensioning member includes two clamping columns 5 and a U-shaped elastic connecting piece 51 fixedly connected between the radial side walls of the two clamping columns 5. The two bending connecting parts 21 of the support frame 2 are provided with a C-shaped clamping seat 23 at one end of the relative side wall close to the fitting part. The two bending connecting parts 21 of the support frame 2 are provided with a placement hole 22 at one end of the relative side wall close to the fitting part. The U-shaped elastic connecting piece 51 is located in the placement hole 22 of the two bending connecting parts 21 that are fitted together. Under normal circumstances, since the bending connecting parts 21 have elastic characteristics, the bending connecting parts 21 between the two adjacent support frames 2 can be tightly fitted together. In order to avoid the separation of the bending connecting parts 21 between the two adjacent support frames 2 during the polishing process, a gap will appear between the two adjacent polishing sheets 3, resulting in irregular changes in the rotation diameter of the annular polishing structure, that is, it is large or small, and a violent phenomenon occurs during polishing. For this purpose, the two ends of the U-shaped elastic connecting piece 51 are respectively extended out of the openings on one side of the two placement holes 22 that are away from each other, and the two clamping columns 5 are respectively clamped with the clamping seats 23 on the side walls of the two adjacent bent connection parts 21. After the clamping column 5 is fixed on the clamping seat 23, the length of the clamping column 5 itself is longer than the height of the placement hole 22. Therefore, once the clamping column 5 is fixed on the clamping seat 23, the outer wall of the clamping column 5 can be pressed against the side wall of the bent connection part 21. The elasticity of the U-shaped elastic connecting piece 51 is used to make the two clamping columns 5 have a real-time force to close together, so that the bent connection parts 21 between the two adjacent support frames 2 are tightly fitted together, so that when the two adjacent polishing sheets 3 are rotated and polished, they are fitted together to the maximum extent, so as to avoid the phenomenon of jumping when the rotation diameter of the annular polishing structure is large or small, which affects the normal polishing operation.

[0049] Embodiment 2, a polishing wheel molding and fixing device, used to fix the polishing wheel during molding, such as Fig.10 As shown, it includes: a retaining fixture, the retaining angle includes a tray 6, a center column 61 fixed at the upper edge of the tray 6, and two retaining belts 62 relatively fixed to the radial outer wall of the center column 61, and the two retaining belts 62 are fitted together at one end away from the center column 61 to form a molded retaining cavity wrapped around the polishing wheel.

[0050] like Fig.11 and Fig.12 As shown, a support plate 65 is vertically fixed to the upper end surface of the tray 6, and the support plate 65 is arranged opposite to the center column 61. A threaded adjustment rod 68 is inserted into the support plate 65 with a horizontal thread. The threaded adjustment rod 68 passes through one end of the support plate 65 and is rotatably connected to a push plate 66. The push plate 66 is located between the support plate 65 and the center column 61. The bottom wall of the push plate 66 is slidably fitted with the upper end surface of the tray 6. Notches are provided on both side walls of the push plate 66. A guide roller 67 is rotatably provided on the top wall of the notch. A guide gap is provided between the radial side wall of the guide roller 67 and the vertical side wall in the notch.

[0051] The polishing wheel to be formed is placed in the forming retention cavity, and the threaded adjustment rod 68 is rotated to slide the push plate 66 along the upper end surface of the tray 6, and pushed toward the side close to the center column 61, and the retention belt 62 is passed through the guide gap until the inner side wall of the retention belt 62 is tightly fitted on the radial side wall of the polishing wheel, and the radial side wall of the guide roller 67 is used to face the side wall of the center column 61. As long as the push plate 66 is in a fixed position, the radial side wall of the guide roller 67 can be used to abut against the outer wall of the retention belt 62, and the two retention belts 62 can be fixed, and then the polishing wheel to be formed can be fixed. By adjusting the size of the space in the forming retention cavity according to the size of the polishing wheel during the production process of the polishing wheel, the retention molding of polishing wheels of different sizes can be adapted. After the polishing wheel is bonded and formed, the polishing wheel is fixed in the retention device. After the adhesive is cured, the two retention belts 62 are pulled in the opposite direction along the guide gap to expand the space of the forming retention cavity, so as to facilitate the rapid removal of the polishing wheel. Compared with the molded retention cavity with non-adjustable size, its space size can be quickly adjusted, with a wide range of adaptation, quick clamping, and quick release, which improves production efficiency.

[0052] In addition, the outer wall of the end of the retaining belt 62 is provided with a plurality of vertically distributed card interfaces 63, and the radial outer wall of the guide roller 67 is provided with a tooth block 69 that is engaged with the card interface 63. Fig.11 and Fig.12 As shown, by adding a tooth block 69 that engages with the card interface 63, as long as the push plate 66 is in a fixed position, the radial side wall of the guide roller 67 can be used to press against the outer wall of the retaining belt 62. At the same time, the tooth block 69 is engaged in the card interface 63 at the corresponding position, which can fix the two retaining belts 62 and then fix the polishing wheel to be formed, further enhancing the fixing stability of the retaining belt 62.

[0053] like Fig.10 As shown, one end of the retaining belt 62 passing through the guide gap is provided with an expansion portion 64, and the diameter of the expansion portion 64 is greater than the width of the guide gap. By adding the expansion portion 64, the retaining belt 62 is prevented from being reversely pulled out of the guide gap.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing wheel, characterized in that: include: A wheel body, the wheel body comprising a wheel frame (1), a support frame and a polishing sheet (3), the wheel frame (1) being provided with a mounting hole in the axial direction; The radial side wall of the wheel frame (1) is provided with an annular groove (11), the support frame comprises an inner ring (4) and a plurality of support frames (2), the inner ring (4) is sleeved in the annular groove (11), the inner wall of the inner ring (4) is fixed with a connecting block (41) fixedly connected to the inner radial side wall of the annular groove (11), the plurality of support frames (2) are distributed in an annular shape on the radial outer wall of the inner ring (4), the two ends of the support frame (2) are bent to form a bent connection portion (21) fixedly connected to the outer wall of the inner ring (4), and the support frame (2) is located between the two bent connection portions (21) to form a fitting portion with an arc-shaped structure; The polishing sheets (3) are provided in plurality, each polishing sheet (3) is fixedly arranged on the outer wall of the bonding portion, two adjacent polishing sheets (3) are bonded together, and the plurality of polishing sheets (3) form an annular polishing structure; The diameter of the annular polishing structure is greater than the diameter of the wheel frame (1); Each polishing sheet (3) is provided with multiple layers, and each layer of sheets is cross-bonded.

2. The polishing wheel according to claim 1, characterized in that: Each polishing sheet (3) is provided with a plurality of through holes (32) arranged along the radial direction of the wheel body, the plurality of through holes (32) are grouped in two and are distributed in parallel vertically, a reinforcing column (31) is fixedly inserted into each through hole (32), one end of the reinforcing column (31) is fixedly connected to the fitting portion, and the other end is flush with the outermost surface wall of the polishing sheet (3).

3. The polishing wheel according to claim 2, characterized in that: The reinforcing column (31) is made of the same material as the polishing sheet (3), which is cotton cloth or fine felt.

4. The polishing wheel according to claim 1, characterized in that: The bent connection portion (21) is made of elastic material, and the bent connection portions (21) between two adjacent support frames (2) are fitted together.

5. The polishing wheel according to claim 4, characterized in that: It also comprises a tensioning member for tightly fitting the bent connection parts (21) between two adjacent support frames (2).

6. The polishing wheel according to claim 4, characterized in that: The tensioning member comprises two clamping columns (5) and a U-shaped elastic connecting piece (51) fixedly connected between radial side walls of the two clamping columns (5); the two bending connecting parts (21) of the support frame (2) are provided with a C-shaped clamping seat (23) at one end of the opposite side wall close to the fitting part; the two bending connecting parts (21) of the support frame (2) are provided with a placement hole (22) at one end of the opposite side wall close to the fitting part; the U-shaped elastic connecting piece (51) is located in the placement holes (22) of the two bending connecting parts (21) fitted together; the two end portions of the U-shaped elastic connecting piece (51) respectively extend out of the openings of one side of the two placement holes (22) away from each other; and the two clamping columns (5) are respectively clamped with the clamping seats (23) on the side walls of two adjacent bending connecting parts (21).

7. A polishing wheel molding and retaining device, used for retaining the polishing wheel according to any one of claims 1 to 6 during molding, characterized in that: include: The retaining fixture comprises a tray (6), a center column (61) fixed at the upper edge of the tray (6), and two retaining bands (62) relatively fixed to the radial outer wall of the center column (61), and the ends of the two retaining bands (62) away from the center column (61) are fitted together to form a molded retaining cavity wrapped around the polishing wheel.

8. The polishing wheel forming and retaining device according to claim 7, characterized in that: A support plate (65) is vertically fixed to the upper end surface of the tray (6), and the support plate (65) is arranged opposite to the center column (61). A threaded adjustment rod (68) is inserted into the support plate (65) through a horizontal thread. One end of the threaded adjustment rod (68) passes through the support plate (65) and is rotatably connected to a push plate (66). The push plate (66) is located between the support plate (65) and the center column (61). The bottom wall of the push plate (66) is slidably fitted with the upper end surface of the tray (6). Notches are provided on both side walls of the push plate (66), and a guide roller (67) is rotatably provided on the top wall of the notch. A guide gap is provided between the radial side wall of the guide roller (67) and the vertical side wall in the notch. The polishing wheel to be formed is placed in the forming retaining cavity, the retaining belt (62) passes through the guide gap, the inner side wall of the retaining belt (62) is tightly fitted on the radial side wall of the polishing wheel, and the radial side wall of the guide roller (67) faces the side wall of the central column (61), fixing the two retaining belts (62).

9. The polishing wheel forming and retaining device according to claim 8, characterized in that: The outer wall of the end of the retaining belt (62) is provided with a plurality of vertically distributed clamping interfaces (63), and the radial outer wall of the guide roller (67) is provided with a tooth block (69) clamped with the clamping interface (63).

10. The polishing wheel forming and retaining device according to claim 9, characterized in that: An end of the retaining belt (62) passing through the guide gap is provided with an expansion portion (64), and the diameter of the expansion portion (64) is greater than the width of the guide gap.

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