Wear-resisting ball forming die

Abstract

The utility model relates to the technical field of wear-resisting ball production, in particular to a wear-resisting ball forming die which comprises an upper die body and a lower die body, the upper die body and the lower die body are respectively provided with a plurality of arc-shaped grooves, the arc-shaped grooves of the upper die body and the lower die body are enclosed to form a wear-resisting ball forming cavity, and the wear-resisting ball forming die further comprises an ejection mechanism. The ejection mechanism is arranged below the lower die body, the ejection mechanism comprises a plurality of ejection rods and a power part for driving the ejection rods to move up and down, the upper ends of the ejection rods are provided with supporting blocks, the supporting blocks extend to the bottom of the wear-resisting ball forming cavity, and the shape of the tops of the supporting blocks is matched with the shape of the arc-shaped groove. The supporting block matched with the arc-shaped groove in shape is used for ejecting out the wear-resisting ball, the contact face of the ejector rod and the wear-resisting ball is increased, the wear-resisting ball can loosen more easily, the surface of the wear-resisting ball is not prone to being damaged in the ejection process, and the forming quality of the wear-resisting ball is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant ball production, in particular to a wear-resistant ball forming die. Background Art

[0002] Wear-resistant balls are a kind of crushing medium used in ball mills to crush materials in ball mills. Wear-resistant balls are generally produced by iron mold covering sand technology, which is a new casting technology that forms a mold by covering a layer of molding sand on the metal mold cavity. This type of mold usually includes an upper mold body and a lower mold body. The arc-shaped grooves on the upper mold body and the lower mold body constitute the molding cavity of the wear-resistant balls. After molding, the wear-resistant balls are easy to adhere to the arc-shaped grooves, which makes it difficult to demold the wear-resistant balls. Therefore, it is necessary to use an ejection mechanism to eject the wear-resistant balls from the arc-shaped grooves. During the molding process of the wear-resistant balls, the ejector rod extending into the molding cavity will affect the molding quality of the wear-resistant balls, and when the wear-resistant balls are ejected after molding, it is also easy to cause surface damage to the wear-resistant balls, affecting the yield of the wear-resistant balls or adding additional grinding operations.

[0003] Therefore, a technical solution is currently needed to solve the technical problem that the ejection mechanism affects the molding quality of the wear-resistant balls and easily causes surface damage to the wear-resistant balls during the ejection process. Utility Model Content

[0004] The utility model aims to provide a wear-resistant ball forming die to solve the technical problems in the prior art that the ejection mechanism affects the forming quality of the wear-resistant ball and easily causes surface damage to the wear-resistant ball during the ejection process.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A wear-resistant ball forming mold comprises an upper mold body and a lower mold body, wherein the upper mold body and the lower mold body are respectively provided with a plurality of arc-shaped grooves, and the arc-shaped grooves of the upper mold body and the lower mold body enclose a wear-resistant ball forming cavity, and also comprises an ejection mechanism, wherein the ejection mechanism is arranged below the lower mold body, and the ejection mechanism comprises a plurality of ejector rods and a power component for driving the ejector rods to move up and down, and a support block at the upper end of the ejector rod, wherein the support block extends to the bottom of the wear-resistant ball forming cavity, and the top shape of the support block is adapted to the arc-shaped groove.

[0007] The utility model discloses a wear-resistant ball forming mold. When in use, the wear-resistant ball is formed in a forming cavity between an upper mold body and a lower mold body. After forming, the upper mold body is removed, and a push rod is driven upward by a power component. A support block at the top of the push rod contacts the top of the wear-resistant ball, driving the wear-resistant ball out of an arc-shaped groove of the lower mold body. The present application utilizes a support block that is adapted to the shape of the arc-shaped groove to eject the wear-resistant ball, thereby increasing the contact surface between the push rod and the wear-resistant ball, which not only makes the wear-resistant ball more likely to loosen, but also makes it less likely to cause surface damage to the wear-resistant ball during the ejection process, thereby improving the molding quality of the wear-resistant ball.

[0008] As a preferred solution of the utility model, the bottom of the lower mold body is provided with a limiting groove adapted to the shape of the support block, and the bottom of the limiting groove is provided with a through hole connected to the limiting groove, and the diameter of the through hole is adapted to the diameter of the push rod. The width of the support block is greater than the diameter of the push rod, and the limiting groove plays a limiting role on the support block, so that the support block can fit more accurately with the bottom of the arc groove, thereby ensuring the molding quality of the wear-resistant ball.

[0009] As a preferred solution of the utility model, the power component includes a movable plate that can move up and down, and all the ejector rods are arranged on the top of the movable plate. The movable plate drives all the ejector rods to move, so that all the wear-resistant balls can be ejected at the same time, which makes the operation easier and the demoulding efficiency of the wear-resistant balls higher.

[0010] As a preferred solution of the utility model, the power component further includes a fixed plate arranged below the movable plate, a screw is connected to the bottom of the movable plate, a rotating member is arranged on the fixed plate, and the rotating member is threadedly connected to the screw. By adding a fixed plate below the movable plate, the rotating member on the fixed plate is operated to rotate the rotating member relative to the screw, so that the screw moves in the axial direction, thereby driving the movable plate to move up and down.

[0011] As a preferred solution of the utility model, the rotating member is a bearing, the fixed plate is provided with a through hole for installing the bearing, the bearing is embedded in the through hole, and the inner ring of the bearing is threadedly connected with the screw. By arranging the bearing on the fixed plate, the screw is driven to move up and down by the rotation of the inner ring of the bearing. In this solution, the rotating member adopts a bearing, and the inner ring of the bearing rotates relative to the outer ring of the bearing, and the friction resistance encountered during the movement is small.

[0012] As a preferred solution of the utility model, the power component further includes a wheel disc, which is arranged below the fixing plate and connected to the inner ring of the bearing. The wheel disc drives the bearing to rotate, thereby increasing the force arm of the inner ring of the bearing to rotate and reducing the force required for the inner ring of the bearing to rotate.

[0013] As a preferred solution of the utility model, the power component also includes a motor, which is connected to the bottom of the wheel disc and is used to drive the wheel disc to rotate. The motor drives the wheel disc to rotate, which realizes the full automation of the demoulding operation and reduces manpower consumption. At the same time, the motor with appropriate power can be selected according to the demoulding force required, which has stronger adaptability and avoids the situation where the wear-resistant balls cannot be removed.

[0014] As a preferred solution of the utility model, support plates are respectively arranged on both sides of the bottom of the lower mold body, and two support plates are respectively connected on both sides of the fixed plate. The support plates on both sides play a role of supporting the fixed plate, so that the fixed plate can be installed below the movable plate.

[0015] As a preferred solution of the utility model, a guide groove is provided inside the support plate, and sliders adapted to the guide groove are provided on both sides of the movable plate. The guide groove limits the movable plate, making the movable plate move up and down more smoothly.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] The present application utilizes a support block adapted to the shape of an arc-shaped groove to eject the wear-resistant ball, thereby increasing the contact surface between the ejector rod and the wear-resistant ball. This not only makes the wear-resistant ball easier to loosen, but also makes it less likely to cause surface damage to the wear-resistant ball during the ejection process, thereby improving the molding quality of the wear-resistant ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a wear-resistant ball forming mold of the utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of area A in the middle;

[0020] Figure 3 yes Figure 1 Enlarged view of area B in the middle;

[0021] Figure 4 yes Figure 1 Enlarged view of area C in the middle;

[0022] Markings in the figure: 1-upper mold body, 2-lower mold body, 21-arc groove, 3-ejection mechanism, 31-elevator, 311-support block, 32-movable plate, 321-screw, 322-slider, 33-fixed plate, 331-rotating part, 34-wheel disc, 35-motor, 4-support plate, 41-guide groove. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings.

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Example 1

[0025] like Figure 1 , Figure 2 and Figure 3As shown, the present embodiment is a wear-resistant ball forming mold, including an upper mold body 1 and a lower mold body 2, wherein the upper mold body 1 and the lower mold body 2 are respectively provided with a plurality of arc-shaped grooves 21, and the arc-shaped grooves 21 of the upper mold body 1 and the lower mold body 2 are combined to form a wear-resistant ball forming cavity, and also includes an ejection mechanism 3, wherein the ejection mechanism 3 is arranged below the lower mold body 2, and the ejection mechanism 3 includes a plurality of ejector rods 31, and a power component for driving the ejector rods 31 to move up and down, and the upper end of the ejector rod 31 supports a block 311, and the support block 311 extends to the bottom of the wear-resistant ball forming cavity, and the top shape of the support block 311 is adapted to the arc-shaped groove.

[0026] When in use, the wear-resistant ball is formed in the molding cavity between the upper mold body 1 and the lower mold body 2. After molding, the upper mold body 1 is removed, and the push rod 31 is driven upward by the power component. The support block 311 on the top of the push rod 31 contacts the top of the wear-resistant ball, driving the wear-resistant ball out of the arc-shaped groove 21 of the lower mold body 2. The present application utilizes the support block 311 that is adapted to the shape of the arc-shaped groove 21 to eject the wear-resistant ball, thereby increasing the contact surface between the push rod 31 and the wear-resistant ball, which not only makes the wear-resistant ball more prone to loosening, but also prevents the surface of the wear-resistant ball from being damaged during the ejection process, thereby improving the molding quality of the wear-resistant ball.

[0027] Specifically, a limiting groove adapted to the shape of the support block 311 is provided at the bottom of the lower mold body 2, and a through hole connected to the limiting groove is provided at the bottom of the limiting groove. The diameter of the through hole is adapted to the diameter of the push rod 31, and the width of the support block 311 is larger than the diameter of the push rod 31. The limiting groove serves to limit the support block 311, so that the support block 311 can fit more accurately with the bottom of the arc-shaped groove, thereby ensuring the molding quality of the wear-resistant ball.

[0028] Furthermore, the power component includes a movable plate 32 that can move up and down, and all the ejector rods 31 are arranged on the top of the movable plate 32. The movable plate 32 drives all the ejector rods 31 to move, so that all the wear-resistant balls are ejected simultaneously, which makes the operation easier and the demolding efficiency of the wear-resistant balls higher; the power component also includes a fixed plate 33 arranged below the movable plate 32, and the bottom of the movable plate 32 is connected to a screw rod 321, and a rotating member 331 is arranged on the fixed plate 33, and the rotating member 331 is threadedly connected to the screw rod 321. By adding a fixed plate below the movable plate 32, the rotating member 331 on the fixed plate 33 is operated to rotate the rotating member 331 relative to the screw rod 321, so that the screw rod 321 moves in the axial direction, thereby driving the movable plate 32 to move up and down.

[0029] Specifically, the rotating member 331 is a bearing, and a through hole for installing the bearing is provided on the fixed plate 33. The bearing is embedded in the through hole, and the inner ring of the bearing is threadedly connected with the screw 321. By providing a bearing on the fixed plate 33, the screw 321 is driven to move up and down by the rotation of the inner ring of the bearing. In this solution, the rotating member 331 adopts a bearing, and the inner ring of the bearing rotates relative to the outer ring of the bearing, and the friction resistance encountered during the movement is small.

[0030] Specifically, support plates 4 are respectively provided on both sides of the bottom of the lower mold body 2, and two support plates 4 are respectively connected on both sides of the fixed plate 33. The support plates 4 on both sides play a role in supporting the fixed plate 33, thereby realizing the installation of the fixed plate 33 under the movable plate 32. Example 2

[0031] like Figure 1 and Figure 3 As shown, in this embodiment, the difference from Embodiment 1 is that the power component also includes a wheel disc 34, and the wheel disc 34 is arranged below the fixed plate 33. The wheel disc 34 is connected to the inner ring of the bearing, and the bearing is driven to rotate by the wheel disc 34, thereby increasing the force arm of the rotation of the inner ring of the bearing and reducing the force required for the rotation of the inner ring of the bearing. Example 3

[0032] like Figure 1 As shown, in this embodiment, the difference from Embodiment 1 is that the power component also includes a motor 35, and the motor 35 is connected to the bottom of the wheel disc 34, and is used to drive the wheel disc 34 to rotate. By driving the wheel disc 34 to rotate through the motor 35, the demoulding operation is fully automated, reducing manpower consumption, and at the same time, the motor 35 of appropriate power can be selected according to the demoulding required force, which has stronger adaptability and avoids the situation where the wear-resistant balls cannot be removed. Example 4

[0033] like Figure 1 and Figure 4 As shown, in this embodiment, the difference from Embodiment 1 is that a guide groove 41 is provided on the inner side of the support plate 4, and sliders 322 adapted to the guide groove 41 are provided on both sides of the movable plate 32, and the guide groove 41 serves to limit the movable plate 32, so that the movable plate 32 can move up and down more smoothly.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant ball forming mold, characterized in that: The invention comprises an upper mold body (1) and a lower mold body (2), wherein the upper mold body (1) and the lower mold body (2) are respectively provided with a plurality of arc-shaped grooves (21), and the arc-shaped grooves (21) of the upper mold body (1) and the lower mold body (2) enclose a wear-resistant ball forming cavity. The invention also comprises an ejection mechanism (3), wherein the ejection mechanism (3) is arranged below the lower mold body (2), and the ejection mechanism (3) comprises a plurality of ejector rods (31), and a power component for driving the ejector rods (31) to move up and down, and a support block (311) is provided at the upper end of the ejector rod (31), wherein the support block (311) extends to the bottom of the wear-resistant ball forming cavity, and the top shape of the support block (311) is adapted to the arc-shaped groove (21).

2. The wear-resistant ball forming mold according to claim 1, characterized in that: The bottom of the lower mold body (2) is provided with a limiting groove whose shape matches that of the support block (311), and the bottom of the limiting groove is provided with a through hole connected to the limiting groove, and the diameter of the through hole matches the diameter of the ejector rod (31).

3. The wear-resistant ball forming mold according to claim 2, characterized in that: The power component comprises a movable plate (32) capable of moving up and down, and all the push rods (31) are arranged on the top of the movable plate (32).

4. The wear-resistant ball forming mold according to claim 3, characterized in that: The power component further comprises a fixed plate (33) arranged below the movable plate (32); a screw rod (321) is connected to the bottom of the movable plate (32); a rotating member (331) is arranged on the fixed plate (33); and the rotating member (331) is threadedly connected to the screw rod (321).

5. The wear-resistant ball forming mold according to claim 4, characterized in that: The rotating member (331) is a bearing, the fixed plate (33) is provided with a through hole for mounting the bearing, the bearing is embedded in the through hole, and the inner ring of the bearing is threadedly connected to the screw rod (321).

6. The wear-resistant ball forming mold according to claim 5, characterized in that: The power component further comprises a wheel disc (34), wherein the wheel disc (34) is arranged below the fixing plate (33), and the wheel disc (34) is connected to the inner ring of the bearing.

7. The wear-resistant ball forming mold according to claim 6, characterized in that: The power component further comprises a motor (35), wherein the motor (35) is connected to the bottom of the wheel disc (34) and is used to drive the wheel disc (34) to rotate.

8. The wear-resistant ball forming mold according to any one of claims 4 to 7, characterized in that: Support plates (4) are respectively provided on both sides of the bottom of the lower mold body (2), and two sides of the fixing plate (33) are respectively connected to the two support plates (4).

9. The wear-resistant ball forming mold according to claim 8, characterized in that: A guide groove (41) is provided on the inner side of the support plate (4), and sliding blocks (322) adapted to the guide groove (41) are respectively provided on both sides of the movable plate (32).

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