Combined glassware grinder

Abstract

The utility model discloses a purpose lies in the working layer of glassware grinding disc of prior art is a whole structure, there is the uneven heating, uneven abrasive distribution to cause the short service life of grinding disc, need frequently carry out the deficiency of spark maintenance when adopting sintering process connection working layer and base, provide a combination formula glassware grinding tool, this combination formula glassware grinding disc, including the working layer containing diamond and the base for supporting working layer, working layer sets up on the base, and working layer is composed by the butt joint of multiple regular polygon blocks and multiple special-shaped blocks, and the special-shaped block is a part of regular polygon block, adopts the combination formula glassware grinding disc of the utility model structure, greatly reduced the sintering area and the difficulty of spreading of grinding disc working layer powder, make every block even heating, even abrasive distribution, can improve the service life of large diameter grinding disc, reduce the number of spark maintenance, reduce the labor intensity of worker.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, and specifically relates to a combined glass grinding disc for grinding glassware. Background Technology

[0002] Glassware grinding discs typically have large diameters, ranging from 300mm to 800mm, with some reaching 850mm or more. Their structure consists of a working layer on the end face of a substrate, which is a single, integral structure. A sintering process is usually used to bond the working layer and the substrate together. The conventional sintering process is integral hot forging, where the working layer powder is completely laid on the end face of the grinding disc substrate before integral sintering. Due to the large diameter of glassware grinding discs, the integral hot forging method presents the following technical problems: the large spreading area of ​​the material makes it difficult to ensure uniformity, resulting in uneven abrasive distribution; the large diameter of the working layer powder leads to uneven heating, resulting in inconsistent density of the working layer; and poor parallelism accuracy during pressing. These defects cause uneven wear and vibration of the grinding disc during use, resulting in short single-use times, frequent EDM repairs, reduced work efficiency, and increased workload for operators. Furthermore, the integral hot forging method involves heavy handling and high labor intensity during production. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing glassware grinding discs, which have an integral working layer and suffer from uneven heating and uneven abrasive distribution when using a sintering process to connect the working layer and the substrate, resulting in a short grinding disc life and the need for frequent EDM maintenance. This invention provides a combined glassware grinding tool.

[0004] The technical solution to the technical problem solved by this utility model is as follows: A composite glassware grinding disc includes a working layer containing diamond and a base for supporting the working layer. The working layer is disposed on the base and is composed of multiple regular polygonal blocks and multiple irregularly shaped blocks joined together. The irregularly shaped blocks are part of the regular polygonal blocks, and the parts separated from the regular polygonal blocks are arc-shaped to form arc edges. The arc edges of each irregularly shaped block are joined together to form a circumference. The multiple regular polygonal blocks are joined together to form a central main body. Each irregularly shaped block is located on the periphery of the central main body and is joined to one or more edges of the regular polygonal blocks through one or more of its edges. The regular polygonal blocks and irregularly shaped blocks are respectively fixedly connected to the base. The regular polygonal block is a regular hexagonal block. The irregular blocks include irregular block one and irregular block two. Irregular block one is a pentagon, which includes three corners and a portion of two straight sides of a regular polygon. Irregular block two is a quadrilateral, which includes two corners and a portion of two hypotenuses of a regular polygon. A regular hexagonal block is located at the center of the disk. A layer of regular hexagons surrounds the central regular hexagonal block. Six regular hexagonal blocks are arranged around the central regular hexagonal block. The two hypotenuses of irregular block one are connected to the sides of two adjacent regular polygons respectively. The straight sides of irregular block two are connected to the sides of a regular hexagon. Irregular block one and irregular block two are arranged alternately. The regular polygonal block is a regular hexagonal block. The irregular blocks include irregular block one and irregular block two. Irregular block one is a pentagon, which includes three corners and a portion of two straight sides of a regular polygon. Irregular block two is a quadrilateral, which includes two corners and a portion of two hypotenuses of a regular polygon. A regular hexagonal block is located at the center of the disk. Two layers of regular hexagons surround the central regular hexagonal block. Six regular hexagonal blocks are connected around the central regular hexagonal block to form block layer one. Twelve regular hexagonal blocks are set outside block layer one. The twelve regular hexagonal blocks are set around the six regular hexagonal blocks to form block layer two. Irregular blocks are located on the periphery of block layer two. The two hypotenuses of irregular block one are connected to the sides of two adjacent regular polygons respectively. The straight side of irregular block two is connected to the side of a regular hexagon. Two irregular blocks one and one irregular block two are alternately arranged. The regular polygonal blocks are squares. The regular polygonal blocks are arranged in a rectangular pattern to form the central main part of the disk. The irregular blocks include irregular block three, irregular block four, and irregular block five. Irregular block three is an equilateral triangle with an arc-shaped hypotenuse. Irregular block four is a quadrilateral with two opposite sides of unequal length. The side connecting the two straight sides is an arc-shaped side, and the length of the side connecting the two straight sides is equal to the side length of the square. Irregular block four has two opposite straight sides of equal length. One side connecting the two opposite straight sides is an arc-shaped side, and the other side is a straight side. Its side length is equal to the side length of the square. Irregular blocks three, four, and five are arranged around the central main part in sequence, and the angles of the equilateral triangle and the central main part are directly opposite each other to form the disk. It also includes a transition layer, which together with the working layer forms a block. The transition layer is located on the side facing the substrate and forms a composite block with the working layer. The transition layer does not contain abrasive. Both regular polygonal and irregularly shaped material blocks are obtained by cold pressing followed by sintering. During cold pressing, screws or bolts are pre-installed on the surface of each regular polygonal block and irregularly shaped block that connects to the substrate. The head of the screw or bolt is located inside the regular polygonal block and irregularly shaped block, and the shank of the screw or bolt is located outside the regular polygonal block and irregularly shaped block. Both regular polygonal blocks and irregularly shaped blocks are fixedly connected to the substrate by adhesive composite thread connection.

[0005] The beneficial effects of this utility model are as follows: The combined glassware grinding disc using this invention divides the entire working layer into multiple blocks, each a regular polygon or a portion thereof. These blocks are sintered separately, and then fixed to the substrate via bolts, adhesives, and / or welding. Because the spreading and pressure-bearing areas of each block are significantly smaller than those of the entire working layer, the sintering area and spreading difficulty of the powder in the grinding disc's working layer are greatly reduced. This results in uniform heating and abrasive distribution in each block. The regular polygonal blocks facilitate uniform abrasive distribution and heating during sintering, thus extending the service life of large-diameter grinding discs, reducing the frequency of EDM maintenance, and decreasing the labor intensity for workers. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of an embodiment of the combined glassware of this utility model; Figure 2 When it is a regular polygon or a regular hexagon Figure 1 A top view diagram; Figure 3 When it is a regular polygon or a regular quadrilateral Figure 1 A top view diagram; Figure 4 This is a schematic diagram of the structure of an embodiment of an irregularly shaped material block; Figure 5 This is a schematic diagram of the structure of an embodiment of the irregularly shaped material block 2.

[0007] Explanation of reference numerals in the attached figures 1-Base; 2-Transition layer; 3-Working layer; 4-Through hole; 5-Flat head screw; 6-Nut; 7-Blind threaded hole one; 8-Regular polygonal block; 9-Irregular block one; 10-Irregular block two; 11-Stop; 12-Blind threaded hole two; 13-Butt edge; 14-Rounded edge; 15-Irregular block three; 16-Irregular block four; 17-Irregular block five; 18-Irregular block six. Detailed Implementation

[0008] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0009] like Figure 1 and Figure 2As shown, the combined glassware grinding disc of this utility model includes a substrate 1 and a working layer 3. The substrate is disc-shaped, and the working layer is a planar or arc-shaped surface located on the connecting end face of the working layer of the substrate. A transition layer 2 can also be set between the substrate and the working layer. The working layer contains abrasive, while the transition layer 2 does not contain abrasive. The working layer is divided into multiple blocks along a direction perpendicular to the surface of the working layer 3. These blocks are arranged and joined together to form the grinding disc. When a transition layer is provided, each block includes both the transition layer and the working layer, forming a composite structure block. Both the individual blocks and the composite structure blocks are obtained by cold pressing and then sintering powder blocks.

[0010] In this invention, the material block includes a regular polygonal material block 8 and irregular material blocks. The regular polygonal material blocks are assembled together to form the central main body of the grinding disc. Each irregular material block is a part of the regular polygonal material block and has at least one mating edge 13 with the same length as the side of the regular polygon, and an arc edge 14 that forms part of the circumference of the grinding disc. The irregular material block is mated with one or more sides of the regular polygon in the central main body through its mating edge 13. The arc edges of each irregular material block are connected to form the outer circumference of the grinding disc.

[0011] In a preferred structure, the regular polygons are squares and hexagons, and these regular polygonal blocks are arranged and combined to form the central main body. The regular polygons are squares and hexagons, and the irregularly shaped blocks are part of these regular polygonal blocks. Their uniform and regular arrangement on the grinding wheel ensures a uniform weight distribution. The separation points between the irregularly shaped blocks and the regular polygonal blocks are arc-shaped, and the arcs of the irregularly shaped blocks meet to form a circumference. Furthermore, the corners of the irregularly shaped blocks are greater than or equal to 60 degrees, making it less prone to corner breakage and ensuring a more uniform pressure distribution during sintering and pressing.

[0012] Now, taking a regular hexagon as an example, the explanation is as follows: It includes two types of irregularly shaped blocks, namely irregularly shaped block 1 (9) and irregularly shaped block 2 (10). Irregularly shaped block 1 (9) is a pentagon, including the three corners of the regular hexagonal block and two opposite straight sides (91). The length of the straight sides (91) is equal to and less than or equal to the side length of the regular polygonal block. The two opposite straight sides (91) are connected by arc edge 141. Irregularly shaped block 2 (10) includes the two corners of the regular hexagonal block and two hypotenuses (101). The lengths of the two hypotenuses (101) of irregularly shaped block 2 are equal to the lengths of the two straight sides (91) of irregularly shaped block 1 and are arranged opposite each other. The two hypotenuses (101) are connected by arc edge 2 (142). The arc radius or arc degree of the arc edges of arc edge one and arc edge two are equal. When combined, a regular hexagonal block is located in the center. At least one layer of regular hexagonal blocks is set around the central regular hexagonal block. When a layer of regular hexagonal blocks is set around the central regular hexagonal block, six regular hexagonal blocks are arranged around the central regular hexagonal block to form block layer one. The outer layer is irregularly shaped blocks. Irregularly shaped block one connects to the two oblique sides of the regular hexagonal block of block layer one through its two oblique sides. Irregularly shaped block two connects to one side of a regular hexagonal block of block layer one through its straight side. Irregularly shaped block one and irregularly shaped block two are arranged alternately to form a disk shape. When two layers of regular hexagonal blocks are set outside the central regular hexagonal block, 12 regular hexagonal blocks are set on the outer periphery of the first block layer. Six regular hexagonal blocks form a group, with one side of each block connecting to one side of the regular hexagonal block in the first block layer. The other six regular hexagonal blocks form another group, with two sides of each block connecting to the intersecting sides of the two regular hexagonal blocks in the first block layer. The outer layer of irregularly shaped blocks includes 12 guide blocks and 6 irregularly shaped blocks. Two irregularly shaped blocks are spaced apart by one irregularly shaped block. The two sides of the irregularly shaped block connect to the intersecting sides of the two adjacent regular hexagons, and the complete side of the irregularly shaped block connects to one side of the regular hexagonal block, forming a disk shape.

[0013] The number and size of the blocks should be set reasonably according to the diameter of the disc. Each block should not be too small or too large. Generally, there should be two to three layers of regular polygonal blocks. Otherwise, the installation of the blocks will increase the time and reduce efficiency.

[0014] The following explanation uses a regular polygon as an example of a regular quadrilateral. The arrangement of the regular quadrilateral blocks is relatively simple. The shape and size of each irregular block are obtained by dividing and arranging them according to the diameter of the grinding disc. The central main body of the grinding disc consists of at least nine regularly arranged quadrilaterals. Three different shapes of irregular blocks are obtained around the central main body: irregular block 315, irregular block 416, irregular block 517, and irregular block 618. Each irregular block is a part of a regular quadrilateral block. The part that separates from the regular quadrilateral block is arc-shaped, so that the irregular blocks can be joined together to form a circumference. Irregular block 315 is an equilateral triangle with an arc-shaped hypotenuse, which is one corner of the regular quadrilateral block. Its side length is equal to half the difference between the total side length of the central main body and the slant length corresponding to the side of the central main body and the total side length of the central main body. Shaped block 4 (16) has one side equal to the side length of a regular square, and the other two sides are of different lengths. The shorter side is equal to half the difference between the side length of the central main square formed by the array of rectangular blocks and the length of the rectangle it belongs to. The longer side is equal to half the difference between the side length of the rectangle formed by the central row of rectangular blocks and the length of the rectangle it belongs to. The longer and shorter sides are connected by an arc-shaped side 4. Shaped block 5 has a side connecting to the central main body that is equal to the side length of the rectangular block, and the other two sides are equal. The length of the other two sides is equal to half the difference between the side length of the rectangle formed by the central row of rectangular blocks and the length of the rectangle it belongs to. Shaped blocks 4, 5, and 6 are arranged along the circumference of the grinding disc. Shaped block 3 is angularly opposite to the central main body. Shaped blocks 4 and 5 are arranged clockwise or counterclockwise. By filling the space between the outer circumference of the grinding disc and the main body with irregularly shaped material blocks, a disc with a flat or curved end face is obtained.

[0015] The regular polygonal block 8 and each irregularly shaped block are first formed into abrasive blocks by hot pressing and sintering. After sintering, the abrasive blocks are fixed to the substrate by bonding and bolting. It is best to pre-embed flat-head screws 5 on one surface of the regular polygonal block 8 and each irregularly shaped block during cold pressing before sintering. After sintering, the working layer 3 and the flat-head screws 5 become a whole. When a transition layer 2 is provided, the transition layer 2, the working layer 3, and the flat-head screws are wound together into a whole.

[0016] Regular polygonal blocks 8 and irregularly shaped blocks are fixed to the substrate by connecting them with nuts 6 through blind threaded holes 7 filled with adhesive and through holes 4, forming a circle. Blind threaded holes 7 and / or through holes 4 are provided on the upper surface of the substrate that connects to the working layer. The shank of the flat-head screw 5 is located in the blind threaded hole 7 and the through hole 4. Adhesive is provided in the blind threaded hole 7, and the flat-head screw is fixed in the blind threaded hole 7 by the adhesive. Nut 6 is provided in the through hole 4, and the nut 6 is threaded to the shank of the flat-head screw. Adhesive is provided in the through hole 4, and the flat-head screw and nut are fixed in the through hole 4 by the adhesive, thereby fixing the working layer and the substrate layer into a whole.

[0017] The combined glassware grinding disc is centered on the equipment via stop 11 and fixed to the equipment flange with bolts via blind threaded hole 12.

[0018] Through the above structure, the overall working layer is divided into multiple material blocks, each of which is cold-pressed and sintered separately. This reduces the sintering area, making the sintered object smaller and lighter, facilitating uniform material loading, and allowing for more uniform heating and parallelism through hot pressing. The combination structure of the regular polygonal material blocks in this invention ensures uniform heating and pressure during hot pressing, as each block has a uniform structure and no sharp corners. Each irregularly shaped block is a part of a regular polygonal block, making assembly easy and suitable for mass production. The corners of each irregularly shaped block are also free of sharp corners, resulting in uniform powder distribution and relatively uniform heating. The material block of this invention has a central regular polygonal block, thus achieving a grinding disc structure with uniform radial mass distribution, resulting in uniform grinding disc rotation speed, improving grinding quality, and enabling the production of grinding discs without holes in the center of the end face.

Claims

1. A combined glassware grinding disc, comprising a diamond-containing working layer and a substrate for supporting the working layer, wherein the working layer is disposed on the substrate, characterized in that: The working layer is composed of multiple regular polygonal blocks and multiple irregularly shaped blocks joined together. The irregularly shaped blocks are part of the regular polygonal blocks, and the parts separated from the regular polygonal blocks form arc edges. The arc edges of each irregularly shaped block are joined together to form a circumference. Multiple regular polygonal blocks are joined together to form a central main body. Each irregularly shaped block is located on the periphery of the central main body and is joined to one or more edges of the regular polygonal blocks through one or more of its edges. The regular polygonal blocks and irregularly shaped blocks are respectively fixedly connected to the substrate.

2. The combined glassware grinding disc as described in claim 1, characterized in that: The regular polygonal block is a regular hexagonal block. The irregular blocks include irregular block one and irregular block two. Irregular block one is a pentagon, which includes three corners and a portion of two straight sides of the regular polygon. Irregular block two is a quadrilateral, which includes two corners and a portion of two hypotenuses of the regular polygon. A regular hexagonal block is located at the center of the disk. A layer of regular hexagons surrounds the central regular hexagonal block. Six regular hexagonal blocks are arranged around the central regular hexagonal block. The two hypotenuses of irregular block one are connected to the sides of two adjacent regular polygons respectively. The straight side of irregular block two is connected to the side of a regular hexagon. Irregular block one and irregular block two are arranged alternately.

3. The combined glassware grinding disc as described in claim 1, characterized in that: The regular polygonal block is a regular hexagonal block. The irregular blocks include irregular block one and irregular block two. Irregular block one is a pentagon, which includes three corners and a portion of two straight sides of a regular polygon. Irregular block two is a quadrilateral, which includes two corners and a portion of two hypotenuses of a regular polygon. A regular hexagonal block is located at the center of the disk. Two layers of regular hexagons surround the central regular hexagonal block. Six regular hexagonal blocks are connected around the central regular hexagonal block to form block layer one. Twelve regular hexagonal blocks are set outside block layer one. The twelve regular hexagonal blocks are set around the six regular hexagonal blocks to form block layer two. Irregular blocks are located on the periphery of block layer two. The two hypotenuses of irregular block one are connected to the sides of two adjacent regular polygons respectively. The straight side of irregular block two is connected to the side of a regular hexagon. Two irregular blocks one and one irregular block two are alternately arranged.

4. A combined glassware grinding disc as described in claim 1, characterized in that, The regular polygonal blocks are squares. The regular polygonal blocks are arranged in a rectangular pattern to form the central main part of the disk. The irregular blocks include irregular block three, irregular block four, and irregular block five. Irregular block three is an equilateral triangle with an arc-shaped hypotenuse. Irregular block four is a quadrilateral with two opposite sides of unequal length. The side connecting the two straight sides is an arc-shaped side, and the length of the side connecting the two straight sides is equal to the side length of the square. Irregular block four has two opposite straight sides of equal length. One side connecting the two opposite straight sides is an arc-shaped side, and the other side is a straight side. Its side length is equal to the side length of the square. Irregular blocks three, four, and five are arranged around the central main part in sequence, and the angles of the equilateral triangle and the central main part are directly opposite each other, forming the disk.

5. A combination glassware mill plate as defined in claim 1, wherein, It also includes a transition layer, which together with the working layer forms a block. The transition layer is located on the side facing the substrate and forms a composite block with the working layer. The transition layer does not contain abrasive.

6. A combined glassware grinding disc as described in claim 1, characterized in that, Both regular polygonal blocks and irregularly shaped blocks are obtained by cold pressing followed by sintering.

7. A combined glassware grinding disc as described in claim 6, characterized in that, During cold pressing, screws or bolts are pre-installed on the surface of each regular polygonal block and irregularly shaped block that connects to the substrate. The head of the screw or bolt is located inside the regular polygonal block and irregularly shaped block, while the shank of the screw or bolt is located outside the regular polygonal block and irregularly shaped block.

8. A combination glassware mill plate as defined in claim 1, wherein, Both regular polygonal blocks and irregularly shaped blocks are fixedly connected to the substrate by adhesive composite thread connection.

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