Forming device for aluminum oxide filler ball production

Abstract

The utility model provides a forming device for alumina filler ball production, which comprises a die holder matched with a pressing die, the upper surface of the die holder is sunken downwards to form a groove, a plurality of forming cavities for storing powdery alumina filler ball raw materials are uniformly arranged at the bottom in the groove, the bottom of each forming cavity is of a hemispherical structure, and the bottom of each forming cavity is provided with a pressing plate. A plurality of guide holes for inserting ejector pins are uniformly formed in the bottom of the die holder, the guide holes are communicated with the forming cavity, a discharging opening is formed in the edge of one side in the groove, a perforated plate is installed on the edge of the upper portion in the discharging opening, a sliding groove is formed under the discharging opening, and the upper surface and one side face of the sliding groove are open. One end, far away from the open side face, of the sliding groove is fixedly connected with the die holder through a connecting piece, the bottom of the sliding groove is inclined, and the aluminum oxide filler ball pushing device has the advantages that powdery aluminum oxide filler ball raw materials are discharged in the material pushing process, and powder is prevented from being mixed in formed aluminum oxide filler balls.

Description

Technical Field

[0001] The utility model relates to a forming device for producing alumina filler balls, belonging to the field of alumina filler ball production. Background Art

[0002] Compression molding is one of the common methods for producing alumina filler balls. That is, a plurality of molding cavities are machined on the die base. After the powdered alumina filler ball raw material is added into the molding cavity, the hydraulic cylinder is used to drive the die downward, so that the plurality of pressure rods on the lower surface of the die are respectively inserted into the plurality of molding cavities, so that the powdered alumina filler ball raw material in the molding cavity is squeezed into a ball shape. After the pressure rod is separated from the molding cavity, the ejector moves into the molding cavity along the guide hole on the die base under the action of the spring, thereby ejecting the alumina filler ball in the molding cavity, and then the driving member drives the push plate along the The surface of the die base moves, thereby pushing the alumina filler balls on the die base away from the die base. Affected by the humidity of the alumina filler balls, the powdered alumina filler ball raw materials in the molding cavity do not form compact alumina filler balls after extrusion. Therefore, during the pushing process, the push plate will push the powdered alumina filler ball raw materials into the container for collecting the alumina filler balls. It is necessary to clean the powdered alumina filler ball raw materials mixed in the alumina filler balls for a second time. Therefore, it is necessary to design a molding device for the production of alumina filler balls that can discharge the powdered alumina filler ball raw materials during the pushing process. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a molding device for the production of alumina filler balls to solve the problems raised in the above-mentioned background technology. The utility model discharges powdered alumina filler ball raw materials during the pushing process to prevent the powder from mixing in the molded alumina filler balls.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a forming device for producing alumina filler balls, including a mold base that cooperates with a pressing mold, the upper surface of the mold base is recessed downward to form a groove, and a plurality of forming cavities for storing powdered alumina filler ball raw materials are evenly opened at the bottom of the groove, the bottom of the forming cavity is a hemispherical structure, and a plurality of guide holes for inserting ejector pins are evenly opened at the bottom of the mold base, the guide holes are communicated with the forming cavity, a discharge port is opened at one edge of the groove, a porous plate is installed at the upper edge of the discharge port, a slide groove is provided directly below the discharge port, the upper surface of the slide groove and one side surface of the slide groove are both open, the end of the slide groove away from its open side surface is connected and fixed to the mold base by a connecting piece, and the bottom of the slide groove is inclined.

[0005] Furthermore, the connecting member includes an L-shaped plate, an L-shaped plate is installed at one end of the slide groove away from its open side, a pad is provided between the vertical part of the L-shaped plate and the mold base, the pad is connected and fixed to the mold base, and the L-shaped plate is threadedly connected to the pad by multiple connecting screws.

[0006] Furthermore, the upper surface of the pad is recessed downward to form a slot, the bottom of the slot is closed, an insert is inserted in the slot, a side of the insert is provided with a plurality of screw holes that cooperate with the connecting screws, a side of the pad facing away from the mold base is provided with a plurality of small holes aligned with the screw holes, the small holes are connected to the slot, the vertical portion of the L-shaped plate is provided with a plurality of through holes aligned with the small holes, one end of the connecting screw passes through the through hole and the small hole in sequence and is threadedly connected to the screw hole.

[0007] Furthermore, a support frame is provided on the lower side of the porous plate, and the support frame is installed in the discharge port.

[0008] Furthermore, a U-shaped plate is installed at the bottom of the slide near its open side, and a movable groove with the same inclination angle as the bottom of the slide is inserted in the space formed by the U-shaped plate and the slide. The cross-section of the movable groove is U-shaped, and one side of the movable groove is open. A positioning screw for limiting the relative position of the movable groove and the slide is installed in the middle of the bottom of the U-shaped plate.

[0009] Furthermore, a circular hole is opened in the middle of the lower surface of the U-shaped plate, and a threaded sleeve is provided on the lower side of the circular hole and arranged concentrically with the circular hole. One end of the threaded sleeve is connected and fixed to the U-shaped plate, and the positioning screw is threadedly connected in the threaded sleeve. One end of the positioning screw passes through the circular hole and contacts with the movable groove.

[0010] Beneficial effects of the utility model:

[0011] 1. When the formed alumina filler balls are pushed, they will pass through the porous plate. At this time, the powder mixed in the alumina filler balls will fall into the discharge port through the porous plate under the action of its own gravity. Then the powder will slide through the chute into the powder collection container, so that the powdered alumina filler ball raw materials can be discharged during the pushing process to prevent the powder from mixing in the formed alumina filler balls.

[0012] 2. Align the vertical part of the L-shaped plate with the pad, then insert the plug with screw holes into the slot to connect the plug and the pad. Pass one end of the connecting screw through the through hole and the small hole in sequence and screw it into the screw hole to complete the assembly of the slide and the mold base. When the thread of the screw hole is damaged due to excessive torque or other reasons, pull out the plug and replace it. There is no need to replace the mold base when the screw hole is damaged.

[0013] 3. Adjust the position of the movable groove along the space formed by the U-shaped plate and the chute. At this time, the distance between the open end of the movable groove and the mold base changes. At this time, the length of the path formed by the chute and the movable groove for limiting the sliding of the powder changes, which makes it easy to adjust the position where the powder falls into the collection container, so that the falling point of the powder can be adjusted without adjusting the position of the collection container. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic structural diagram of a molding device for producing alumina filler balls according to the present invention;

[0016] Figure 2 This is a three-dimensional diagram from another perspective of a molding device for producing alumina filler balls according to the present invention;

[0017] Figure 3 This is a schematic diagram of the assembly of a support frame, a cushion block and a die base in a molding device for producing alumina filler balls according to the present invention;

[0018] Figure 4 This is a schematic diagram of the exploded assembly of the insert block and the spacer block in the forming device for producing alumina filler balls according to the utility model;

[0019] Figure 5 This is a schematic diagram of the assembly of a U-shaped plate, an L-shaped plate and a slideway in a forming device for producing alumina filler balls according to the present invention;

[0020] In the figure: 1-mold base, 2-groove, 3-molding cavity, 4-porous plate, 5-slide groove, 6-movable groove, 7-U-shaped plate, 8-pad, 9-connecting screw, 10-L-shaped plate, 11-guide hole, 12-threaded sleeve, 13-positioning screw, 14-discharge port, 15-insert block, 16-small hole, 17-screw hole, 18-slot, 19-perforation, 20-support frame. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 and Figure 2The cam 2 is provided with a plurality of guide holes 11 for inserting ejector pins, and the guide holes 11 are connected to the molding cavity 3. After the powdered aluminum oxide filler ball raw material is added into the molding cavity 3, the hydraulic cylinder is used to drive the molding downward so that the plurality of pressure rods on the lower surface of the molding are respectively inserted into the plurality of molding cavities 3, thereby the powdered aluminum oxide filler ball raw material in the molding cavity 3 is squeezed into a ball shape. After the pressure rod is separated from the molding cavity 3, the ejector pin moves along the guide hole 11 on the molding cavity 3 under the action of the spring, thereby ejecting the aluminum oxide filler ball in the molding cavity 3. Then, the driving member drives the push plate to move along the surface of the molding cavity 1, thereby pushing the aluminum oxide filler ball on the molding cavity 3 away from the molding cavity 1.

[0023] See Figure 1-Figure 3 A discharge port 14 is provided at one edge of the groove 2, and a porous plate 4 is installed at the upper edge of the discharge port 14. A supporting frame 20 is provided on the lower side of the porous plate 4, and the supporting frame 20 is installed in the discharge port 14. The supporting frame 20 realizes the support of the porous plate 4, and a chute 5 is provided directly below the discharge port 14. The upper surface of the chute 5 and one side of the chute 5 are both open, and the bottom of the chute 5 is inclined. When the formed alumina filler balls are pushed, the formed alumina filler balls will pass through the porous plate 4. At this time, the powder mixed in the alumina filler balls falls into the discharge port 14 through the porous plate 4 under the action of its own gravity, and then the powder slides into the powder collecting container through the chute 5, thereby realizing the discharge of powdered alumina filler ball raw materials during the pushing process, and preventing the powder from being mixed in the formed alumina filler balls.

[0024] See Figure 2-Figure 5, an L-shaped plate 10 is installed at one end of the slide 5 away from its open side, a pad 8 is provided between the vertical portion of the L-shaped plate 10 and the mold base 1, the pad 8 is connected and fixed to the mold base 1, the upper surface of the pad 8 is recessed downward to form a slot 18, the bottom of the slot 18 is closed, an insert 15 is inserted into the slot 18, a side of the insert 15 is provided with a plurality of screw holes 17 that match the connecting screws 9, a side of the pad 8 away from the mold base 1 is provided with a plurality of small holes 16 that are aligned with the screw holes 17, the small holes 16 are communicated with the slot 18, and the L-shaped plate 1 The vertical portion of the L-shaped plate 10 is provided with a plurality of through-holes 19 aligned with the small holes 16, so that the vertical portion of the L-shaped plate 10 is aligned with the cushion block 8. Then, the insert block 15 with the screw holes 17 is inserted into the slot 18 to connect the insert block 15 with the cushion block 8. One end of the connecting screw 9 is passed through the through-holes 19 and the small holes 16 in sequence and then screwed into the screw holes 17 to complete the assembly of the slide 5 and the mold base 1. When the thread of the screw hole 17 is damaged due to excessive torque or other reasons, the insert block 15 can be pulled out and replaced. There is no need to replace the mold base 1 when the screw hole 17 is damaged.

[0025] See Figure 1 、 Figure 2 and Figure 5 The chute 5 is provided with a U-shaped plate 7 at the bottom, which is close to the open side of the chute 5. The space formed by the U-shaped plate 7 and the chute 5 is provided with a movable groove 6 with the same inclination angle as the bottom of the chute 5. The cross section of the movable groove 6 is U-shaped, and one side of the movable groove 6 is open. A positioning screw 13 is installed at the middle position of the bottom of the U-shaped plate 7 for limiting the relative position of the movable groove 6 and the chute 5. A circular hole is opened in the middle position of the lower surface of the U-shaped plate 7, and a threaded sleeve 12 is provided on the lower side of the circular hole, which is concentrically arranged with the circular hole. One end of the threaded sleeve 12 is connected and fixed with the U-shaped plate 7, and the positioning screw 13 is threadedly connected in the threaded sleeve 12. One end of the positioning screw 13 passes through the circular hole and contacts the movable groove 6. The position of the movable groove 6 is adjusted along the space formed by the U-shaped plate 7 and the chute 5. At this time, the distance between the open end of the movable groove 6 and the mold base 1 changes. At this time, the path length for limiting the sliding of the powder formed by the chute 5 and the movable groove 6 changes, which is convenient for adjusting the position of the powder falling into the collection container, so as to adjust the falling point of the powder without adjusting the position of the collection container.

[0026] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A forming device for producing alumina filler balls, comprising a die base (1) cooperating with a die, characterized in that: The upper surface of the mold base (1) is recessed downward to form a groove (2), and a plurality of molding cavities (3) for storing powdered alumina filler ball raw materials are evenly provided at the bottom of the groove (2), and the bottom of the molding cavity (3) is a hemispherical structure. A plurality of guide holes (11) for inserting ejector pins are evenly provided at the bottom of the mold base (1), and the guide holes (11) are communicated with the molding cavity (3). A discharge port (14) is provided at an edge of one side of the groove (2), and a porous plate (4) is installed at the upper edge of the discharge port (14). A slide groove (5) is provided directly below the discharge port (14), and the upper surface of the slide groove (5) and one side surface of the slide groove (5) are both open. The end of the slide groove (5) away from its open side surface is connected and fixed to the mold base (1) through a connecting piece, and the bottom of the slide groove (5) is inclined.

2. The forming device for producing alumina filler balls according to claim 1, characterized in that: The connecting member comprises an L-shaped plate (10), an L-shaped plate (10) is installed at one end of the slide groove (5) away from its open side, a cushion block (8) is provided between the vertical portion of the L-shaped plate (10) and the mold base (1), the cushion block (8) is connected and fixed to the mold base (1), and the L-shaped plate (10) is threadedly connected to the cushion block (8) via a plurality of connecting screws (9).

3. The forming device for producing alumina filler balls according to claim 2, characterized in that: The upper surface of the pad (8) is recessed downward to form a slot (18), the bottom of the slot (18) is closed, an insert (15) is inserted into the slot (18), a side of the insert (15) is provided with a plurality of screw holes (17) that match the connecting screws (9), a side of the pad (8) away from the mold base (1) is provided with a plurality of small holes (16) aligned with the screw holes (17), the small holes (16) are communicated with the slot (18), a vertical portion of the L-shaped plate (10) is provided with a plurality of through holes (19) aligned with the small holes (16), one end of the connecting screw (9) passes through the through hole (19) and the small hole (16) in sequence and is threadedly connected in the screw hole (17).

4. The forming device for producing alumina filler balls according to claim 1, characterized in that: A supporting frame (20) is provided on the lower side of the porous plate (4), and the supporting frame (20) is installed in the discharge port (14).

5. The forming device for producing alumina filler balls according to claim 1, characterized in that: A U-shaped plate (7) is installed at a position near the open side of the bottom of the chute (5), and a movable groove (6) with the same inclination angle as the bottom of the chute (5) is inserted in the space formed by the U-shaped plate (7) and the chute (5). The cross section of the movable groove (6) is U-shaped, and one side of the movable groove (6) is open. A positioning screw (13) for limiting the relative position of the movable groove (6) and the chute (5) is installed at the middle position of the bottom of the U-shaped plate (7).

6. The forming device for producing alumina filler balls according to claim 5, characterized in that: A circular hole is provided in the middle of the lower surface of the U-shaped plate (7), and a threaded sleeve (12) is provided on the lower side of the circular hole and is arranged concentrically with the circular hole. One end of the threaded sleeve (12) is connected and fixed to the U-shaped plate (7), and the positioning screw (13) is threadedly connected in the threaded sleeve (12). One end of the positioning screw (13) passes through the circular hole and contacts the movable groove (6).

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