A production device and a production method for a dual-purpose saw blade for cutting and grinding

Abstract

The present invention discloses a production device and a production method for a dual-purpose saw blade for cutting and grinding, comprising an upper mold body, a lower mold body, an elastic body and a lower mold core; the upper mold body can be moved up and down to cover the lower mold body, the elastic body can be moved up and down to be installed on the lower mold body, the lower mold core can be moved up and down to be installed on the elastic body, a base body is installed between the upper mold body and the lower mold body, a first accommodating cavity is formed on the upper part of the lower mold body, and a second accommodating cavity is surrounded by the upper part of the elastic body and the upper part of the lower mold core; the lower part of the upper mold body and the upper part of the lower mold body surround a third accommodating cavity; the first accommodating cavity and the second accommodating cavity are connected; the first accommodating cavity, the second accommodating cavity and the third accommodating cavity together form a molding cavity, and the circumference of the base body extends into the molding cavity. Compared with the prior art, the present invention balances the pressure in the molding cavity through the movement of the elastic body, reduces the pressure difference between the cutting section and the grinding section, and thus avoids deformation of the base body.

Description

Technical Field

[0001] The invention relates to the field of saw blade manufacturing, and in particular to a production device and a production method for a saw blade for cutting and grinding. Background Art

[0002] Diamond saw blade is a cutting tool, which is widely used in the processing of hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc. Diamond saw blades are mainly composed of two parts; the base and the cutter head. The base is the main supporting part of the bonded cutter head. The cutter head is formed by pressing diamond powder through a mold and wrapped around the circumference of the base. In order to improve the versatility of saw blade products, dual-purpose saw blades for cutting and grinding have appeared. The circumference is used to cut the workpiece, and the disk surface can directly grind the workpiece. Therefore, compared with single-purpose saw blades that are evenly pressed on both sides, dual-purpose saw blades will have an additional grinding cutter head formed on one side of the base. When pressing and producing saw blades, as the diamond powder under the base is squeezed by the circumference of the base, the diamond powder moves up to wrap around the circumference of the base and forms a cutter head under pressure. The pressure on the cutting section and the grinding section of the base will be unbalanced (such as Figure 7 As shown in the figure, the thickness of the matrix itself is relatively thin, and excessive stress concentration is not released during the cold pressing process, resulting in deformation of the matrix during production and use.

[0003] In view of this, the applicant conducted in-depth research on the above-mentioned defects in the prior art, which resulted in the present case. Summary of the invention

[0004] The main purpose of the present invention is to provide a production device and a production method for a dual-purpose cutting and grinding saw blade, which reduces the pressure difference between the cutting section and the grinding section during the matrix pressing process, avoids the problem of stress concentration in the matrix, and thus avoids deformation of the matrix during production and use.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A production device for cutting and grinding dual-purpose saw blades, which includes an upper mold body, a lower mold body, an elastic body and a lower mold core; the upper mold body can be moved up and down to cover the lower mold body, the elastic body can be moved up and down to be installed on the lower mold body, and the lower mold core can be moved up and down to be installed on the elastic body, a base is installed between the upper mold body and the lower mold body, a first accommodating cavity is formed on the upper part of the lower mold body, and a second accommodating cavity is surrounded by the upper part of the elastic body and the upper part of the lower mold core; the lower part of the upper mold body and the upper part of the lower mold body form a third accommodating cavity; the first accommodating cavity and the second accommodating cavity are connected; the first accommodating cavity and the third accommodating cavity are connected; the first accommodating cavity, the second accommodating cavity and the third accommodating cavity together form a molding cavity, and the circumference of the base extends into the molding cavity.

[0007] Furthermore, a support step is formed at the lower portion of the lower mold body, and a support spring is installed between the lower end of the elastic body and the upper end of the support step.

[0008] Furthermore, the lower die body includes a female die and a lower die punch, the lower die punch is adjustably mounted on the female die, and the first accommodating cavity is formed between the upper end of the lower die punch and the side wall of the female die.

[0009] Furthermore, the upper mold body includes an upper mold punch and an upper mold core, the upper mold core can be adjustably installed on the upper mold punch, and the lower end of the upper mold punch, the side wall of the upper mold core and the lower mold body together form the third accommodating cavity.

[0010] Furthermore, a positioning block is installed at the lower end of the upper mold body, a positioning groove is formed at the upper end of the lower mold core, and the positioning block passes through the base and is inserted into the positioning groove.

[0011] Furthermore, the upper end of the base body butts against the lower end of the upper mold core; the lower end of the base body butts against the upper end of the lower mold core.

[0012] Furthermore, the base and the upper mold body are fixedly connected by magnetic attraction.

[0013] Furthermore, the female mold is fixedly mounted on a frame, and the lower mold core is driven by a motor or a cylinder to move up and down.

[0014] Furthermore, the upper mold body is driven by a motor or a cylinder, and the upper mold body is movably installed on the frame up and down, and is molded with the lower mold body.

[0015] A method for producing a dual-purpose saw blade for cutting and grinding, using the above-mentioned dual-purpose saw blade production device, comprises the following steps:

[0016] S01, adjusting and installing the lower die punch, the lower die core and the elastic body relative to the female die so that the first accommodating cavity and the second accommodating cavity are in appropriate sizes; adjusting the position of the upper die core relative to the upper die punch so that the third accommodating cavity is in appropriate size;

[0017] S02, the upper mold body and the lower mold body are in a separated state, the substrate is sent to the bottom of the upper mold core, the upper mold core absorbs the substrate by magnetic attraction or vacuum, so that the upper end of the substrate and the lower end of the upper mold core are abutted, and the substrate is positioned and installed on the positioning block;

[0018] S03, delivering diamond powder according to a certain volume into the first containing chamber and the second containing chamber;

[0019] S04, the upper mold body transports the substrate to move downward, and at the same time, the lower mold core moves up a certain distance to first abut against the lower end surface of the substrate;

[0020] S05, the upper mold body continues to move downward to apply pressure, and the circumference of the substrate begins to squeeze the diamond powder in the first and second accommodating cavities. Under the influence of the pressure, part of the diamond powder originally under the substrate will flow into the third accommodating cavity through the gap between the substrate and the female mold, and the elastic body moves downward to balance the pressure in the molding cavity. Finally, under the action of pressure, the diamond powder is cold-pressed on the substrate to form a tool head;

[0021] S06, after the cold press forming is completed, the upper mold body absorbs the base body and moves upward, and at the same time, the lower mold core also moves upward by a certain stroke, and the auxiliary cutter head is separated from the first accommodating cavity and the second accommodating cavity;

[0022] S07, the upper mold body adsorbs the base body and continues to move upward to return to the initial position, the cutter head is demoulded, and the lower mold core moves downward to reset;

[0023] S08, remove the saw blade, and complete the saw blade production.

[0024] After adopting the above device and method, the present invention has at least the following beneficial effects:

[0025] 1. The elastomer is movably mounted on the lower mold body, so that during the cold pressing process, the elastomer can move downward a certain distance, so that the pressure in the first accommodating chamber and the second accommodating chamber is more balanced, so that the pressure exerted by the internal diamond powder on the cutting section and the grinding section of the substrate is also more balanced, avoiding the problem of stress concentration in the substrate, thereby avoiding deformation of the substrate during production and use.

[0026] Second, a support spring is installed between the lower end of the elastic body and the upper end of the support step. The support spring is installed with a certain pre-tightening, so that when the pressure in the molding cavity is too large, the support spring will be automatically compressed, and finally the upper end of the elastic body will be squeezed to be flush with the upper end of the lower punch during the pressing process.

[0027] Third, the lower die punch can be adjusted and installed on the female die, so that the height of the lower die punch relative to the female die can be directly adjusted to adjust the size of the first accommodating cavity, which is convenient for manufacturing saw blades of different specifications during production.

[0028] Compared with the prior art, the present invention balances the pressure in the molding cavity by the downward movement of the elastomer during the pressing process, and the pressure applied by the first accommodating cavity and the second accommodating cavity to the cutting section and the grinding section is more balanced, thereby avoiding deformation of the substrate during production and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention relates to a cross-sectional view of a production device for a dual-purpose saw blade for cutting and grinding in a mold-closing state.

[0030] Figure 2 The present invention is a partial schematic diagram of a production device for a dual-purpose saw blade for cutting and grinding.

[0031] Figure 3 The invention relates to an installation schematic diagram of a production device for a dual-purpose saw blade for cutting and grinding.

[0032] Figure 4 The present invention relates to a cross-sectional view of a production device for a dual-purpose saw blade for cutting and grinding.

[0033] Figure 5 The present invention relates to a schematic diagram of a demoulding state of a saw blade in a production device for a dual-purpose saw blade for cutting and grinding.

[0034] Figure 6 The present invention relates to a structural schematic diagram of a saw blade in a production device for a dual-purpose saw blade for cutting and grinding.

[0035] Figure 7 It is a partial schematic diagram of the saw blade pressing process in the prior art.

[0036] In the figure:

[0037] Upper mold body 1; lower mold body 2; elastic body 3;

[0038] Lower mold core 4; molding cavity 5; supporting spring 6;

[0039] Upper die punch 11; upper die core 12; positioning block 13;

[0040] Female die 21; lower die punch 22; support step 221; positioning groove 41;

[0041] A first accommodating chamber 51; a second accommodating chamber 52; a third accommodating chamber 53;

[0042] Base body 1000; cutting section 1001; grinding section 1002; tool head 2000. DETAILED DESCRIPTION

[0043] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0044] like Figures 1 to 6As shown, it is a production device for a dual-purpose saw blade for cutting and grinding involved in the present invention, comprising an upper mold body 1, a lower mold body 2, an elastic body 3 and a lower mold core 4; the upper mold body 1 can be moved up and down to cover the lower mold body 2, the elastic body 3 can be moved up and down to be installed on the lower mold body 2, the lower mold core 4 can be moved up and down to be installed on the elastic body 3, a base 1000 is installed between the upper mold body 1 and the lower mold body 2, a first accommodating cavity 51 is formed on the upper part of the lower mold body 2, and a second accommodating cavity 52 is surrounded by the upper part of the elastic body 3 and the upper part of the lower mold core 4; the lower part of the upper mold body 1 and the upper part of the lower mold body 2 surround a third accommodating cavity 53; the first accommodating cavity 51 and the second accommodating cavity 52 are connected; the first accommodating cavity 51 and the third accommodating cavity 53 are connected; the first accommodating cavity 51, the second accommodating cavity 52 and the third accommodating cavity 53 jointly form a molding cavity 5, and the circumference of the base 1000 extends into the molding cavity 5. The elastomer 3 can be movably installed on the lower mold body 2, so that during the cold pressing process, the elastomer 3 can move downward a certain distance, so that the pressure in the first accommodating cavity 51 and the second accommodating cavity 52 is more balanced, so that the pressure exerted by the internal diamond powder on the cutting section 1001 and the grinding section 1002 of the substrate 1000 is also more balanced, avoiding the problem of stress concentration in the substrate 1000, thereby avoiding deformation of the substrate 10000 during production and use.

[0045] Preferably, a support step 221 is formed at the lower part of the lower mold body 2, and a support spring 6 is installed between the lower end of the elastic body 3 and the upper end of the support step 221. By installing the support spring 6 between the lower end of the elastic body 3 and the upper end of the support step 221, the support spring 6 is installed with a certain pre-tightening, so that when the pressure in the molding cavity 5 is too large, the support spring 6 will be automatically compressed, and finally the upper end of the elastic body 3 is squeezed to be flush with the upper end of the lower die punch 22 during the pressing process.

[0046] Preferably, if Figure 3 As shown, the lower mold body 2 includes a female mold 21 and a lower punch 22, and the lower punch 22 can be adjusted to be installed on the female mold 21, and the first accommodating cavity 51 is formed between the upper end of the lower punch 22 and the side wall of the female mold 21. The lower punch 22 can be adjusted to be installed on the female mold 21, so that the height of the lower punch 22 relative to the female mold 21 can be directly adjusted to adjust the size of the first accommodating cavity 51, which is convenient for producing saw blades of different specifications during production. In addition, the upper mold body 1 includes an upper punch 11 and an upper mold core 12, and the upper mold core 12 can be adjusted to be installed on the upper punch 11, and the lower end of the upper punch 11, the side wall of the upper mold core 12 and the lower mold body 2 together surround the third accommodating cavity 53. Similarly, the size of the third accommodating cavity 53 can be adjusted in this way.

[0047] Preferably, a positioning block 13 is installed at the lower end of the upper mold body 1, and a positioning groove 41 is formed at the upper end of the lower mold core 4. The positioning block 13 passes through the base 1000 and is inserted into the positioning groove 41. The positioning groove 41 can provide a space for the positioning block 13 to ensure that the lower end of the base 1000 can fit against the upper end of the lower mold core 4 when the mold is closed.

[0048] Preferably, if Figure 1 As shown, the upper end of the base 1000 abuts against the lower end of the upper mold core 12; the lower end of the base 1000 abuts against the upper end of the lower mold core 4.

[0049] Preferably, the base 1000 and the upper mold body 1 are connected by magnetic attraction. In addition, the upper mold body 1 can also fix the base 1000 by adsorption by vacuuming.

[0050] Preferably, the female mold 21 is fixedly mounted on a frame (not shown in the figure), and the lower mold core 4 is driven by a motor or a cylinder to move up and down. The upper mold body 1 is driven by a motor or a cylinder, and the upper mold body 1 is movably mounted on the frame and molded with the lower mold body 2.

[0051] A method for producing a dual-purpose saw blade for cutting and grinding, using the above-mentioned dual-purpose saw blade production device, comprises the following steps:

[0052] S01, adjusting and installing the lower die punch 22, the lower die core 4 and the elastic body 3 relative to the female die 21, so that the first accommodating cavity 51 and the second accommodating cavity 52 are in appropriate sizes; adjusting the position of the upper die core 12 relative to the upper die punch 11, so that the third accommodating cavity 53 is in appropriate size;

[0053] S02, the upper mold body 1 and the lower mold body 2 are in a separated state, the base 1000 is sent to the bottom of the upper mold core 12, the upper mold core 12 absorbs the base 1000 by magnetic attraction or vacuum, so that the upper end of the base 1000 and the lower end of the upper mold core 12 are abutted, and the base 1000 is positioned and installed on the positioning block 13;

[0054] S03, delivering diamond powder according to a certain volume into the first accommodating chamber 51 and the second accommodating chamber 52;

[0055] S04, the upper mold body 1 carries the base 1000 to move downward, and at the same time, the lower mold core 4 moves up a certain distance to first contact the lower end surface of the base 1000;

[0056] S05, the upper mold body 1 continues to move downward to apply pressure, and the circumference of the base body 1000 begins to squeeze the diamond powder in the first accommodating cavity 51 and the second accommodating cavity 52. ​​Under the influence of pressure, part of the diamond powder originally under the base body 1000 will flow into the third accommodating cavity 53 through the gap between the base body 1000 and the female mold 21, and the elastic body 3 moves downward to balance the pressure in the molding cavity 5. Finally, under the action of pressure, the diamond powder is cold-pressed on the base body 1000 to form a tool head 2000;

[0057] S06, after the cold press forming is completed, the upper mold body 1 absorbs the base 1000 and moves upward, and at the same time, the lower mold core 4 also moves upward for a certain distance, and the auxiliary cutter head 2000 is separated from the first accommodating cavity 51 and the second accommodating cavity 52;

[0058] S07, the upper mold body 1 adsorbs the base 1000 and continues to move upward to return to the initial position, the cutter head 2000 is demoulded, and the lower mold core 4 moves downward to reset;

[0059] S08, remove the saw blade, and complete the saw blade production.

[0060] Compared with the prior art, the present invention balances the pressure in the molding cavity 5 by the downward movement of the elastomer 3. The pressure applied by the first accommodating cavity 51 and the second accommodating cavity 52 to the cutting section 1001 and the grinding section 1002 is also more balanced, thereby avoiding deformation of the base 1000 during production and use.

[0061] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A production device for cutting and grinding dual-purpose saw blades, characterized in that: The invention comprises an upper mold body, a lower mold body, an elastic body and a lower mold core; the upper mold body can be moved up and down to cover the lower mold body, the elastic body can be moved up and down to be installed on the lower mold body, the lower mold core can be moved up and down to be installed on the elastic body, a base is installed between the upper mold body and the lower mold body, a first accommodating cavity is formed on the upper part of the lower mold body, and a second accommodating cavity is surrounded by the upper part of the elastic body and the upper part of the lower mold core; the lower part of the upper mold body and the upper part of the lower mold body surround a third accommodating cavity; the first accommodating cavity is connected to the second ... The receiving cavity is connected with the third accommodating cavity; the first accommodating cavity, the second accommodating cavity and the third accommodating cavity together form a molding cavity, and the circumference of the base extends into the molding cavity; the lower mold body includes a female mold and a lower punch, and the lower punch can be adjusted to be installed on the female mold, and the first accommodating cavity is formed between the upper end of the lower punch and the side wall of the female mold; the upper mold body includes an upper punch and an upper mold core, and the upper mold core can be adjusted to be installed on the upper punch, and the lower end of the upper punch, the side wall of the upper mold core and the lower mold body together surround the third accommodating cavity.

2. The production device of a dual-purpose saw blade for cutting and grinding as claimed in claim 1, characterized in that: A supporting step is formed at the lower portion of the lower mold body, and a supporting spring is installed between the lower end of the elastic body and the upper end of the supporting step.

3. The production device of a dual-purpose saw blade for cutting and grinding as claimed in claim 1, characterized in that: A positioning block is installed at the lower end of the upper mold body, and a positioning groove is formed at the upper end of the lower mold core. The positioning block passes through the base body and is inserted into the positioning groove.

4. The production device for a dual-purpose saw blade for cutting and grinding as claimed in claim 1, characterized in that: The upper end of the base body butts against the lower end of the upper mold core; the lower end of the base body butts against the upper end of the lower mold core.

5. The production device for a dual-purpose saw blade for cutting and grinding as claimed in claim 1, characterized in that: The base body and the upper mold body are fixedly connected by magnetic attraction.

6. The production device for a dual-purpose saw blade for cutting and grinding as claimed in claim 1, characterized in that: The female mold is fixedly mounted on a frame, and the lower mold core is driven to move up and down by a motor or a cylinder.

7. The production device for a cutting and grinding saw blade according to claim 1, characterized in that: The upper mold body is driven by a motor or a cylinder, and the upper mold body is movably mounted on a frame up and down, and is molded with the lower mold body.

8. A method for producing a dual-purpose saw blade for cutting and grinding, using a production device for a dual-purpose saw blade for cutting and grinding according to any one of claims 1 to 7, comprising the following steps: S01, adjusting and installing the lower die punch, the lower die core and the elastic body relative to the female die so that the first accommodating cavity and the second accommodating cavity are of appropriate size; adjusting the position of the upper die core relative to the upper die punch so that the third accommodating cavity is of appropriate size; S02, the upper mold body and the lower mold body are in a separated state, the substrate is sent to the bottom of the upper mold core, the upper mold core absorbs the substrate by magnetic attraction or vacuum, so that the upper end of the substrate and the lower end of the upper mold core are abutted, and the substrate is positioned and installed on the positioning block; S03, delivering diamond powder into the first accommodating chamber and the second accommodating chamber according to a certain volume; S04, the upper mold body transports the substrate to move downward, and at the same time, the lower mold core moves up a certain distance to first contact the lower end surface of the substrate; S05, the upper mold body continues to move downward to apply pressure, and the circumference of the substrate begins to squeeze the diamond powder in the first and second accommodating cavities. Under the influence of pressure, part of the diamond powder originally under the substrate will flow into the third accommodating cavity through the gap between the substrate and the female mold, and the elastic body moves downward to balance the pressure in the molding cavity. Finally, under the action of pressure, the diamond powder is cold-pressed and formed on the substrate to form a tool head; S06, after the cold press forming is completed, the upper mold body absorbs the base body and moves upward, and at the same time, the lower mold core also moves upward for a certain distance, and the auxiliary cutter head is separated from the first accommodating cavity and the second accommodating cavity; S07, the upper mold body adsorbs the base body and continues to move upward to return to the initial position, the cutter head is demoulded, and the lower mold core moves downward to reset; S08, remove the saw blade, and complete the saw blade production.

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