Abrasive forming mold

Abstract

The utility model discloses a kind of abrasive forming moulds, including cylindrical base, the upper portion of base is sleeved with mould ring, the lower portion of base is sleeved with second spring, the center of base is longitudinally provided with center hole, the upper portion of center hole is slidably provided with mould core, the lower portion of center hole is provided with first spring, center hole is sleeved with compression ring, the space that the bottom surface of compression ring, mould core outer side, base upper surface and mould ring inner side enclose is the forming cavity of abrasive.This abrasive forming mould can realize two functions of compression forming and demoulding after forming by the different pressure points of conversion external power, simple operation, abrasive is axially moved in forming cavity after forming by pressure equipment driving, the degree of fit of abrasive and mould ring inner side, mould core outer side is reduced using friction, worker is conveniently and quickly taken out after forming, improve abrasive compression efficiency.

Description

Technical Field

[0001] This utility model relates to the field of abrasive wheel extrusion molding technology, specifically to an abrasive molding die. Background Technology

[0002] The basic steps in making a grinding wheel are to first press it, then sinter it at high temperature, and finally obtain the desired grinding wheel. After the abrasive is pressed into shape using a mold, it needs to be removed from the mold. Because the formed grinding wheel fits closely to the inside of the mold, the gap between the two is small, making removal difficult, time-consuming, and labor-intensive, thus reducing the efficiency of grinding wheel production.

[0003] Utility model patent CN222061335U discloses a grinding wheel abrasive forming mold. When using the forming mold to integrally form a grinding wheel, the upper and lower molds are first mounted on a stamping machine via screw hole mounting blocks. Then, the grinding wheel abrasive is placed inside the lower mold. The stamping machine is started, causing the upper mold to press down and form the grinding wheel abrasive inside. After forming, the upper mold is removed, and a motor inside the circular groove is activated to rotate the threaded rod in the circular hole. This causes the screw hole bracket and the ring block to move upwards in the sliding groove and the inner wall of the lower mold, respectively, ejecting the formed grinding wheel for easy demolding and removal, thus improving grinding wheel production efficiency. However, the mold's structure is relatively complex, resulting in poor stability and increased maintenance costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an abrasive forming mold that is simple to operate, can quickly remove the formed abrasive, improve the abrasive pressing efficiency, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an abrasive forming mold, comprising a cylindrical base, a mold ring fitted on the upper part of the base, a second spring fitted on the lower part of the base, a central hole longitudinally arranged at the center of the base, a mold core slidably arranged on the upper part of the central hole, a first spring arranged on the lower part of the central hole, and a clamping ring fitted on the central hole. The space enclosed by the bottom surface of the clamping ring, the outer side surface of the mold core, the upper surface of the base, and the inner side surface of the mold ring is the forming cavity of the abrasive.

[0006] As a preferred embodiment of this utility model, the bottom of the base is provided with a base plate by screws.

[0007] As a preferred embodiment of this utility model, the bottom of the base is provided with an annular step.

[0008] As a preferred embodiment of this invention, the top edges of the mold core and the mold ring are chamfered.

[0009] As a preferred embodiment of this invention, the height of the mold ring and the mold core is higher than the height of the abrasive 10 when it is not pressed.

[0010] Compared with the prior art, the beneficial effects of this utility model are: after the abrasive forming mold is formed, it can realize both pressing and demolding functions by changing different pressure points of external power. The operation is simple. The abrasive after forming is driven to move axially in the forming cavity by pressure equipment. Friction is used to reduce the adhesion between the abrasive and the inner side of the mold ring and the outer side of the mold core, which makes it convenient for workers to quickly remove the formed abrasive and improve the abrasive pressing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the pressure points during the pressing and molding process of this utility model;

[0013] Figure 3 This is a schematic diagram of the pressure points during the demolding process of this utility model.

[0014] In the diagram: 1. Base, 2. Base plate, 3. Mold ring, 4. Pressure ring, 5. Mold core, 6. Center hole, 7. First spring, 8. Second spring, 9. Forming cavity, 10. Abrasive. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: an abrasive forming mold, including a cylindrical base 1, a mold ring 3 sleeved on the upper part of the base 1, a second spring 8 sleeved on the lower part of the base 1, a central hole 6 longitudinally arranged at the center of the base 1, a mold core 5 slidably arranged on the upper part of the central hole 6, a first spring 7 arranged on the lower part of the central hole 6, a clamping ring 4 sleeved on the central hole 6, a base plate 2 arranged on the bottom of the base 1 by screws to prevent the first spring 7 from falling off, and an annular step arranged on the bottom of the base 1 to prevent the second spring 8 from falling off;

[0017] The top edges of the mold core 5 and the mold ring 3 are chamfered to facilitate the insertion of the clamping ring into the molding cavity 9;

[0018] The space enclosed by the bottom surface of the clamping ring 4, the outer side of the mold core 5, the upper surface of the base 1, and the inner side of the mold ring 3 is the forming cavity 9 of the abrasive 10.

[0019] In use: the first spring 7 supports the mold core 5, and the second spring 8 supports the mold ring 3. When the pressure point of the external power is located on the clamping ring 4, it is the pressing and forming stage. During this stage, due to the friction, the mold ring 3 and the mold core 5 will inevitably move slightly downward. Therefore, the height of the mold ring 3 and the mold core 5 should be higher than the height of the abrasive 10 when it is not pressed, to prevent the unpressed abrasive 10 from escaping from the forming cavity 9 during the pressing process. After the abrasive 10 is pressed and formed, the pressure point of the external power is changed so that it is located on the mold ring 3 and the mold core 5. At this time, the first spring 7 and the second spring 8 are compressed, and the abrasive 10 moves axially in the forming cavity 9. The friction is used to reduce the fit between the abrasive 10 and the inner side of the mold ring 3 and the outer side of the mold core 5, so that the workers can quickly remove the formed abrasive. By configuring pressure columns at different positions for the external power, the pressure point can be changed. After the abrasive 10 is removed, it is sintered and trimmed to become the finished product.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An abrasive forming mold, characterized in that: The abrasive includes a cylindrical base (1), a mold ring (3) is fitted on the upper part of the base (1), a second spring (8) is fitted on the lower part of the base (1), a central hole (6) is longitudinally arranged at the center of the base (1), a mold core (5) is slidably arranged on the upper part of the central hole (6), a first spring (7) is arranged on the lower part of the central hole (6), and a clamping ring (4) is fitted on the central hole (6). The space enclosed by the bottom surface of the clamping ring (4), the outer side surface of the mold core (5), the upper surface of the base (1) and the inner side surface of the mold ring (3) is the forming cavity (9) of the abrasive (10).

2. The abrasive forming mold according to claim 1, characterized in that: The bottom of the base (1) is fitted with a base plate (2) by screws.

3. The abrasive forming mold according to claim 1, characterized in that: The bottom of the base (1) is provided with an annular step.

4. The abrasive forming mold according to claim 1, characterized in that: The top edges of the mold core (5) and the mold ring (3) are chamfered.

5. The abrasive forming mold according to claim 1, characterized in that: The height of the mold core (5) and the mold ring (3) is higher than the height of the abrasive (10) when it is not pressed.

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