CN215746410U - Novel graphite corrugated sheet sintering spacer - Google Patents

Abstract

The utility model relates to a novel graphite corrugated sheet sintering space stop pad relates to the field of ripple saw bit mould technique, and it includes the substrate, and the substrate is the ring form, and the outer peripheral face department of substrate is fixed to be provided with and extends ring portion, and the both sides of substrate are close to the position that extends ring portion and are provided with a plurality of hot pressing sand grips along substrate circumference range, and one side that the hot pressing sand grip deviates from the substrate is less than and extends ring portion side. The sintering spacer has the effect that the sintering spacer is not easy to damage in the using process.

Description

Novel graphite corrugated sheet sintering spacer

Technical Field

The application relates to the field of corrugated saw blade die technology, in particular to a novel graphite corrugated sheet sintering spacer.

Background

At present, the diamond circular saw blade in China mainly comprises a non-pressure sintering saw blade, a hot-pressing sintering saw blade, a high-frequency welding saw blade, a laser welding saw blade and other diamond saw blades in various modes. Pressureless and hot-pressed sintering of saw blades is currently still the mainstream in the market. The corrugated sheet is a relatively thin saw blade used for cutting stone, bricks, concrete and abrasive building materials, and is mostly formed by hot-pressing sintering.

The diamond circular saw blade sintering process is that under the condition of high temperature and high pressure, the diamond circular saw blade blank formed by cold pressing is sintered into a semi-finished product with high strength. The sintering spacer is a sheet-shaped die which is placed between the diamond circular saw blades in the sintering process, and mainly has the functions of preventing adhesion, fixing the shape and ensuring the size of a tool bit. During sintering, the cutter head is formed into a certain shape by applying pressure between the cutter head and the sintering spacing pad.

In view of the above-described related art, the inventors thought that there was a drawback that the sintered spacer was easily damaged when pressure was applied.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the sintering spacer is easy to damage when pressure is applied, the application provides a novel graphite corrugated sheet sintering spacer.

The application provides a novel graphite corrugated sheet sintering space stop pad adopts following technical scheme:

the utility model provides a novel graphite corrugated sheet sintering space stop pad, includes the substrate, and the substrate is the ring form, and the fixed extension ring portion that is provided with in outer peripheral face department of substrate, the both sides of substrate are close to the position that extends ring portion and are provided with a plurality of hot pressing sand grips of arranging along substrate circumference, and one side that the hot pressing sand grip deviates from the substrate is less than extension ring portion side.

Through adopting above-mentioned technical scheme, the tool bit is for the isometric material of throwing in sintering process, all partial qualities are the same, sintering process through the spacer makes the tool bit form unevenness's corrugated surface, the hot pressing sand grip plays the fashioned effect of corrugated surface, in order to make the effect that the corrugated surface crest is thinner on the tool bit, must pressurize in sintering process, nevertheless the easy emergence harm of pressurization in-process sintering pad, when the hot pressing sand grip is lower than one side of substrate, can reduce the bellied height of hot pressing sand grip, thereby make equal weight condition that pushes down, the pressure that receives of hot pressing sand grip is less, the spacer is difficult for the harm.

Preferably, the distance of the depth difference between the side of the hot pressing convex strip, which is far away from the substrate, and the extension ring part is 0.15-0.4 mm.

Through adopting above-mentioned technical scheme, the thickness that the range of depth difference passes through the tool bit changes, and the tool bit thickness is about thick the depth difference value and is big more. The appearance of the tool bit product cannot be influenced by the range of the depth difference, the chip removal effect of the corrugated groove of the tool bit cannot be influenced, and the service life of the spacer can be effectively prolonged.

Preferably, a forming groove is formed among the hot-pressing convex strips, and the depth of the forming groove is smaller than 1/2 of the thickness of the tool bit used in cooperation.

By adopting the technical scheme, when the depth of the forming groove is smaller than 1/2 of the thickness of the cutter head, the smaller the depth of the forming groove is, the smaller the force required by the molding of the cutter head is, and the more difficult the spacer is damaged in the sintering process.

Preferably, the hot pressing convex strips are designed in an inclined mode along two radial sides of the substrate, and the inclined directions of the hot pressing convex strips along the two radial sides of the substrate are the same.

By adopting the technical scheme, the hot-pressing raised lines are designed along the inclination of the two radial sides of the substrate, so that the spacer can be conveniently demoulded.

Preferably, the inclination angle between the two sides of the hot-pressing convex strip along the radial direction of the base body and the substrate is 30-40 degrees.

By adopting the technical scheme, the demolding effect is best within the range of 30-40 degrees of the inclination angle under the condition of meeting the inclination strength of the cutter head.

Preferably, one end of the hot pressing convex strip, which is far away from the extension ring part, is provided with a corrugated groove, and the corrugated groove extends along the length direction of the hot pressing convex strip.

Through adopting above-mentioned technical scheme, the design of ripple groove can be so that the tool bit forms corrugated effect when compression moulding, intensity and the effect of polishing when can improving the tool bit and using.

Preferably, the inner walls of the corrugated grooves on two sides in the length direction of the hot pressing raised lines are designed to be inclined, and the inclined directions of the inner walls of the corrugated grooves on two sides in the length direction of the hot pressing raised lines are away from the substrate.

Through adopting above-mentioned technical scheme, the design of the shape of corrugated groove can improve the efficiency that the tool bit demolded from the spacer pad, compares in the perpendicular design of corrugated groove inner wall, and the design of slope can make the tool bit break away from more easily.

Preferably, the depth of the corrugation groove is 0.05-0.2 mm.

By adopting the technical scheme, under the condition of meeting the strength of the cutter head, when the depth range of the corrugated groove is 0.05-0.2mm, the corrugated effect can be given to the cutter head, and the strength of the cutter head can be better ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the hot-pressing convex strips are lower than one side of the substrate, the pressure applied on the hot-pressing convex strips is smaller, and the spacers are not easy to damage;

2. the side surface of the hot-pressing convex strip is designed to be inclined, so that the cutter head is easy to demould from the spacing pad;

3. the design of ripple groove can be so that the tool bit forms corrugated effect when the compression moulding, intensity and the effect of polishing when improving the tool bit and using.

Drawings

FIG. 1 is a schematic structural view of a novel graphite corrugated sheet sintered spacer in the example of the present application;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Description of reference numerals: 1. a substrate; 2. an extension ring portion; 3. hot-pressing the convex strips; 31. a corrugated groove; 4. and forming the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a novel graphite corrugated sheet sintering spacer.

Referring to fig. 1, a novel graphite corrugated sheet sintering spacer comprises a substrate 1, an extension ring part 2 and hot-pressing convex strips 3. The substrate 1, the extension ring portion 2, and the hot-press convex strip 3 are fixed to each other. This application is when using, places the sintering space spacer between two adjacent corrugated sheets, and through the pressurization of heating to corrugated sheet and tool bit, the tool bit can form unevenness's corrugated surface under the extrusion design effect of hot pressing sand grip 3 on the corrugated sheet. The groove on the corrugated surface is convenient for chip removal and heat dissipation when the cutter head is used.

Referring to fig. 1, a substrate 1 is in a ring shape, an extension ring part 2 is disposed at the periphery of the substrate 1, the extension ring part 2 and the substrate 1 are integrally formed, and the extension ring part 2 and the substrate 1 are made of graphite material. The setting of extension ring portion 2 can guarantee that sintering work has sufficient sintering space, keeps apart the external world, plays the dustproof effect of protection. The hot pressing convex strips 3 are provided with a plurality of hot pressing convex strips 3, and the plurality of hot pressing convex strips 3 are arranged at the connecting position of the base body and the extension ring part 2 along the circumferential direction of the base body. The hot-pressing convex strips 3 are integrally formed with the substrate 1 and the extension ring part 2, and the hot-pressing convex strips 3 are also made of graphite. The graphite material has the advantages of light weight, more energy-saving sintering process, small deformation of the saw blade matrix and the like.

Referring to fig. 2, the hot-press ridges 3 are formed to have a length direction inclined with respect to the radial direction of the substrate 1. The side of the hot-pressed convex strip 3 departing from the substrate 1 is lower than the side of the extension ring part 2. The tool bit is at the in-process of sintering, and the atress of hot pressing sand grip 3 on the sintering pad is inhomogeneous in comparison with the atress in whole interval pad, and hot pressing sand grip 3 atress is bigger, leads to hot pressing sand grip 3 to take place to harm or cracked easily, when hot pressing sand grip 3 compare in extension ring portion 2 low time, under the equal volume condition that pushes down, the pressure that hot pressing sand grip 3 received is littleer, is difficult to take place cracked and wearing and tearing.

Referring to fig. 2, a forming groove 4 is formed between two adjacent hot-pressing protruding strips 3. The hot pressing convex strips 3 are designed to be inclined along the two radial sides of the substrate 1, and the inclined directions of the hot pressing convex strips 3 on the two radial sides of the substrate 1 are the same. The inclined design of the hot-pressing convex strips 3 ensures that when the forming grooves 4 are pressed to form the convex edges on the cutter head, the convex edges on the cutter head can rotate and separate relative to the spacing pads, and the cutter head can be rotated to generate a force for separating the cutter head from the spacing pads, so that the demoulding of the cutter head by an operator is facilitated; compare in the design of 3 both sides perpendicular to spacers of hot pressing sand grip, operating personnel extracts out the tool bit for the direction of spacers perpendicular to spacers inconvenient to carry out the application of force to the tool bit, and the design of slope has improved operating personnel's simple operation degree. And proved by experiments, when the inclination angle between the two sides of the hot-pressing convex strips 3 along the radial direction of the base body and the substrate 1 is 30-40 degrees, the tool bit is more convenient to demould compared with a spacer.

Referring to fig. 2, one end of the hot pressing protrusion 3 away from the extension ring portion 2 is provided with a corrugated groove 31, and the corrugated groove 31 extends along the length direction of the hot pressing protrusion 3. The design of the corrugated groove 31 enables the groove on the cutter head to be corrugated, improves the strength of the cutter head, and can ensure the chip removal and heat dissipation capability of the cutter head. The inner walls of the corrugated grooves 31 on both sides in the length direction of the hot-pressed protruding strips 3 are designed to be inclined, and the inclined directions of the inner walls on both sides in the length direction of the hot-pressed protruding strips 31 on both sides are away from the substrate 1. The inclined design of the corrugated groove 31 enables the cutter head and the spacing pad to be in contact with each other on an inclined plane, and the inclined plane enables the spacing pad to apply an outward extrusion force to the cutter head, so that the cutter head is convenient to demould from the spacing pad.

The sizes of the upper parts of the hot-pressing convex strips 3 are used for prolonging the service life of the graphite material under the condition of not influencing the use of the cutter head. Through verifying, each position size on the hot pressing sand grip 3 is as follows, and the compressive capacity of hot pressing sand grip 3 is better, difficult harm during the sintering:

the depth difference distance between one side of the hot-pressing convex strip 3 departing from the substrate 1 and the extension ring part 2 is: 0.15-0.4 mm.

The depth of the shaped recess 4 is less than 1/2 the thickness of the tip used therewith.

The opening depth of the corrugated groove 31 is as follows: 0.05-0.2 mm.

The graphite material has light in weight, and the sintering process is more energy-conserving, saw bit base member warp advantages such as little, but the graphite material is breakable, and the pressure-bearing is poor, has restricted graphite material sintering spacer to use in hot pressing corrugated sheet product production. This patent is through improving the design form of graphite pad, guarantees that graphite ripple spacer atress is even in whole sintering process, does not have the rigidity extrusion. The pressure of the tool bit in the sintering process can be enough, so that the tool bit can meet the requirements of size and appearance, and the problem that a graphite sintering pad is fragile is solved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a novel graphite corrugated sheet sintering space stop pad which characterized in that: the hot pressing device comprises a substrate (1), wherein the substrate (1) is in a circular ring shape, an extension ring part (2) is fixedly arranged at the position of the outer peripheral face of the substrate (1), a plurality of hot pressing convex strips (3) which are arranged along the circumferential direction of the substrate (1) are arranged at the positions, close to the extension ring part (2), of the two sides of the substrate (1), and one side, deviating from the substrate (1), of each hot pressing convex strip (3) is lower than the side face of the extension ring part (2).

2. The novel graphite corrugated sheet sintered spacer as claimed in claim 1, wherein: the depth difference distance between one side of the hot pressing convex strip (3) departing from the substrate (1) and the extension ring part (2) is 0.15-0.4 mm.

3. The novel graphite corrugated sheet sintered spacer as claimed in claim 2, wherein: a forming groove (4) is formed among the hot-pressing convex strips (3), and the depth of the forming groove (4) is smaller than 1/2 of the thickness of the tool bit used in a matched mode.

4. The novel graphite corrugated sheet sintered spacer as claimed in claim 1, wherein: the hot pressing convex strips (3) are designed to be inclined along the two radial sides of the substrate (1), and the inclined directions of the hot pressing convex strips (3) along the two radial sides of the substrate (1) are the same.

5. The novel graphite corrugated sheet sintered spacer as claimed in claim 4, wherein: the inclination angle between the two sides of the hot-pressing convex strips (3) along the radial direction of the base body and the substrate (1) is 30-40 degrees.

6. The novel graphite corrugated sheet sintered spacer as claimed in claim 1, wherein: corrugated groove (31) have been seted up to the one end that hot pressing sand grip (3) deviate from extension ring portion (2), and corrugated groove (31) extend along the length direction of hot pressing sand grip (3).

7. The novel graphite corrugated sheet sintered spacer as claimed in claim 6, wherein: the corrugated groove (31) is designed to be inclined along the inner walls of the two sides of the length direction of the hot pressing convex strip (3), and the corrugated groove (31) is far away from the substrate (1) in the direction of inclination of the inner walls of the two sides of the length direction of the hot pressing convex strip (3).

8. The novel graphite corrugated sheet sintered spacer as claimed in claim 7, wherein: the depth of the corrugated groove (31) is 0.05-0.2 mm.

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