A forming device for an aluminum oxide ceramic piece

Abstract

The utility model discloses a forming device for alumina ceramic piece, include: frame, mould seat, fixedly installed on the frame, the upper end of mould seat is equipped with the blanking groove, the bottom center of blanking groove is connected with the downward blanking pipe, be equipped with a plurality of mould cavities in blanking groove, be equipped with the lower die head in the mould cavity matching, the upper end of lower die head is equipped with the hemispherical lower die groove, the template is established on the frame through the first elevating system, the lower end of template is equipped with a plurality of upper die heads with mould cavity one to one through connecting rod, the lower end of upper die head is equipped with the hemispherical upper die groove with lower die groove matching, the ejecting assembly includes a plurality of with mould cavity one to one's ejector rod, the upper end of ejector rod passes through the mould seat and inserts into the mould cavity with lower die head fixed connection, the lower end of a plurality of ejector rods is fixedly connected on the ejecting plate, and the ejecting plate is driven to go up and down through the second elevating system, and the alumina ceramic ball is ejected through the second elevating system and drives the ejecting plate and ejector rod, and it is more smooth, and the demoulding of multiple mould cavities tends to be synchronous.

Description

Technical Field

[0001] This utility model relates to the field of molding technology, specifically to a molding device for alumina ceramic parts. Background Technology

[0002] Existing alumina ceramic pressing and molding equipment, especially for pressing alumina ceramic balls, generally involves opening several mold cavities on the mold base at one time, thereby pressing and molding a large number of alumina ceramic balls at once.

[0003] In the prior art, an alumina ceramic pressing and molding device with publication number "CN 218286006 U" is disclosed. In this device, during use, the extension of a hydraulic telescopic rod drives the molding plate downwards, causing the molding head to move downwards and insert into the mold cavity. The molding head moves downwards into the mold cavity and presses against the ejector pin. When the bottom end of the ejector pin abuts against the fixed plate, it limits the ejector pin. At this time, the spring is in a contracted state, thereby pressing and molding the alumina ceramic powder through the ejector pin and the molding head. After molding, the molding plate is moved upwards, causing the molding head to separate from the mold cavity. Under the rebound force of the spring, the ejector pin moves upwards, ejecting the alumina ceramic spheres formed in the mold cavity. Simultaneously, an inner groove is opened on the upper surface of the mold base. The inner groove has an inverted frustum structure, which can collect the alumina ceramic spheres ejected from the mold cavity.

[0004] However, in the aforementioned patent, the spring may lose its elasticity after long-term use, resulting in weak rebound of the top pin. Inconsistent spring forces of multiple top pins in the ejection assembly may lead to asynchronous ejection, and some molded ceramic balls may be ejected at different heights or not ejected at all. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model proposes a molding device for alumina ceramic parts.

[0006] To achieve the above-mentioned technical effects, the present invention adopts the following solution: A molding apparatus for alumina ceramic parts, comprising: frame; A mold base is fixed on the machine frame. The upper end of the mold base is provided with a recessed feeding groove. The bottom center of the feeding groove is connected to a feeding pipe that extends downward through the mold base. The feeding groove is provided with a number of downward extending mold cavities. The mold cavity is matched with a lower mold head that moves up and down. The upper end of the lower mold head is provided with a hemispherical lower mold groove. The template is mounted on the frame via a first lifting mechanism. The lower end of the template is provided with several upper mold heads that correspond one-to-one with the mold cavity via a connecting rod. The upper mold heads can be inserted into the mold cavity and slide. The lower end of the upper mold head is provided with a hemispherical upper mold groove that matches the lower mold groove. The ejector assembly includes several ejector rods that correspond one-to-one with the mold cavity. The upper end of each ejector rod passes through the mold base and extends into the mold cavity to be fixedly connected to the lower mold head. The lower ends of the ejector rods are fixedly connected to the ejector plate, which is driven to rise and fall by a second lifting mechanism.

[0007] In a preferred embodiment, the edge of the lower mold groove coincides with the upper edge of the lower mold head to form a pointed tip, and the edge of the upper mold groove coincides with the lower edge of the upper mold head to form a pointed tip.

[0008] In a preferred embodiment, a positioning component is provided between the template and the mold base. The positioning component includes a positioning pin protruding from the lower end of the template and a positioning hole formed at the upper end of the mold base. The positioning pin and the positioning hole are correspondingly provided.

[0009] In a preferred embodiment, the bottom of the mold cavity is provided with a through hole penetrating the mold base, the diameter of the through hole being smaller than the diameter of the mold cavity, and the ejector rod extends into the mold cavity through the through hole.

[0010] In a preferred embodiment, the first lifting mechanism includes a first cylinder vertically mounted on a frame, the telescopic rod of the first cylinder being fixedly connected downward to the template, the template being provided with multiple vertical guide rods, and the frame being provided with guide sleeves fitted onto the guide rods.

[0011] In a preferred embodiment, the second lifting mechanism includes a second cylinder vertically mounted on the frame, the telescopic rod of the second cylinder being fixedly connected to the top plate with its extension rod facing upward, a vertical guide rail being fixedly provided on the frame, and the side of the top plate being fitted and sliding on the guide rail.

[0012] In a preferred embodiment, the frame is equipped with a conveyor located below the second cylinder, the conveyor transports a material basket, and the discharge pipe extends spirally downward around the second cylinder to the top of the material basket.

[0013] Compared with existing technologies, the beneficial effects are: This utility model has a simple structure and is easy to use. The second lifting mechanism drives the ejector plate and ejector rod to eject the alumina ceramic balls more smoothly, and the unloading of multiple mold cavities tends to be synchronized. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of part A in the middle.

[0016] Reference numerals: 10, frame; 20, mold base; 201, material feed chute; 202, mold cavity; 203, material feed pipe; 204, lower mold head; 30, template; 301, pressure bar; 302, upper mold head; 303, first cylinder; 304, guide rod; 40, ejection assembly; 401, ejector rod; 402, ejection plate; 403, second cylinder; 404, guide rail; 501, alignment pin; 502, alignment hole; 601, conveyor; 602, material basket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] A molding apparatus for alumina ceramic parts includes: a frame 10, a mold base 20, a template 30, and an ejection assembly 40.

[0019] The frame 10 is the support frame for the molding device.

[0020] The mold base 20 is fixedly mounted on the frame 10. The upper end of the mold base 20 is provided with a recessed material feeding groove 201. The edge of the material feeding groove 201 is located at the upper end of the mold base 20, and the depth of the material feeding groove 201 gradually decreases along the direction towards the center of the material feeding groove 201, forming an inclined surface from the edge of the material feeding groove 201 to the center of the material feeding groove 201. The bottom center of the material feeding groove 201 is connected to a material feeding pipe 203 that penetrates the mold base 20 downward. The material feeding groove 201 is provided with a plurality of downwardly extending mold cavities 202. The mold cavities 202 are opened on the inclined surface. The mold cavity 202 is matched with a lower mold head 204 that moves up and down. The upper end of the lower mold head 204 is provided with a hemispherical lower mold groove, which matches the alumina ceramic ball to be formed.

[0021] The template 30 is mounted on the frame 10 via a first lifting mechanism. The lower end of the template 30 is provided with several upper mold heads 302 that correspond one-to-one with the mold cavity 202 via a connecting rod. The upper mold heads 302 can be inserted into the mold cavity 202 and slide. The lower end of the upper mold head 302 is provided with a hemispherical upper mold groove that matches the lower mold groove.

[0022] The ejector assembly 40 includes several ejector rods 401 that correspond one-to-one with the mold cavity 202. The upper end of the ejector rod 401 passes through the mold base 20 from below and extends into the mold cavity 202 and is fixedly connected to the lower mold head 204. The lower ends of the several ejector rods 401 are fixedly connected to the same ejector plate 402. The ejector plate 402 is driven to rise and fall by a second lifting mechanism.

[0023] The raw material is fed into the mold cavity 202 and placed in the lower mold groove. The template 30 descends, causing the upper mold head 302 to insert into the mold cavity 202 and gradually close with the lower mold head 204 to extrude the raw material. After the upper mold head 302 and the lower mold head 204 close, the upper mold groove and the lower mold groove form a spherical cavity, thereby extruding the raw material into a spherical shape. After extrusion, the template 30 drives the upper mold head 302 to move upward. The second lifting mechanism drives the ejector plate 402 to drive the ejector rod 401 to eject the lower mold head 204 out of the mold cavity 202. The formed alumina ceramic ball is located at the upper end of the lower mold head 204. If necessary, with manual assistance, the alumina ceramic ball can be manually moved to fall into the feeding groove 201 and slide down to the bottom of the feeding groove 201 and be discharged from the feeding pipe 203. In this invention, the second lifting mechanism drives the ejector plate 402 and the ejector rod 401 to eject the alumina ceramic ball more smoothly, and the unloading of multiple mold cavities 202 tends to be synchronized.

[0024] In a preferred embodiment, the edge of the lower mold groove coincides with the upper edge of the lower mold head 204 to form a tip, and the edge of the upper mold groove coincides with the lower edge of the upper mold head 302 to form a tip.

[0025] In a preferred embodiment, a positioning component is provided between the template 30 and the mold base 20. The positioning component includes a positioning pin 501 protruding from the lower end of the template 30 and a positioning hole 502 formed on the upper end of the mold base 20. The positioning pin 501 and the positioning hole 502 are correspondingly arranged. When the template 30 descends, the positioning pin 501 is inserted into the positioning hole 502.

[0026] In a preferred embodiment, the bottom of the mold cavity 202 has a through hole penetrating the mold base 20, the diameter of which is smaller than the diameter of the mold cavity 202. The ejector rod 401 extends into the mold cavity 202 through the through hole. During extrusion molding, the lower die head 204 is supported at the bottom of the mold cavity 202, providing a higher stress point.

[0027] In a preferred embodiment, the first lifting mechanism includes a first cylinder 303 vertically mounted on the frame 10. The telescopic rod of the first cylinder 303 is fixedly connected to the template 30 with its extension rod facing downward. The template 30 is provided with multiple vertical guide rods 304, and the frame 10 is provided with guide sleeves fitted onto the guide rods 304.

[0028] In a preferred embodiment, the second lifting mechanism includes a second cylinder 403 vertically mounted on the frame 10. The telescopic rod of the second cylinder 403 is fixedly connected to the top plate 402 with its extension rod facing upward. A vertical guide rail 404 is fixedly provided on the frame 10, and the side of the top plate 402 is fitted and slides on the guide rail 404.

[0029] In a preferred embodiment, the frame 10 is equipped with a conveyor 601 located below the second cylinder 403. The conveyor 601 transports a material basket 602. A feeding pipe 203 extends spirally downwards around the second cylinder 403 to above the material basket 602. The spiral arrangement of the feeding pipe 203 avoids interference with the second cylinder 403. An opening is provided on the ejector plate 402 for the feeding pipe 203 to pass through. The formed alumina ceramic balls fall through the feeding pipe 203 into the material basket 602 below for collection. Once full, the basket is directly transported via the conveyor 601, making the process efficient and convenient.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A forming apparatus for alumina ceramic parts, characterized in that, include: Rack (10); A mold base (20) is fixedly mounted on a frame (10). The upper end of the mold base (20) is provided with a recessed material feeding groove (201). The bottom center of the material feeding groove (201) is connected to a material feeding pipe (203) that penetrates the mold base (20) downwards. The material feeding groove (201) is provided with a plurality of downwardly extending mold cavities (202). The mold cavity (202) is matched with a lower mold head (204) that moves up and down. The upper end of the lower mold head (204) is provided with a hemispherical lower mold groove. Template (30) is mounted on frame (10) via a first lifting mechanism. The lower end of template (30) is provided with several upper mold heads (302) corresponding to mold cavities (202) one by one via a connecting rod. The upper mold heads (302) can be inserted into the mold cavity (202) and slide. The lower end of the upper mold head (302) is provided with a hemispherical upper mold groove that matches the lower mold groove. The ejector assembly (40) includes several ejector rods (401) that correspond one-to-one with the mold cavity (202). The upper end of the ejector rod (401) passes through the mold base (20) and extends into the mold cavity (202) and is fixedly connected to the lower mold head (204). The lower ends of the ejector rods (401) are fixedly connected to the ejector plate (402), which is driven to rise and fall by a second lifting mechanism.

2. The forming apparatus for alumina ceramic parts as described in claim 1, characterized in that, The edge of the lower mold groove coincides with the upper edge of the lower mold head (204) to form a tip, and the edge of the upper mold groove coincides with the lower edge of the upper mold head (302) to form a tip.

3. The forming apparatus for alumina ceramic parts as described in claim 1, characterized in that, A positioning component is provided between the template (30) and the mold base (20). The positioning component includes a positioning pin (501) protruding from the lower end of the template (30) and a positioning hole (502) opened on the upper end of the mold base (20). The positioning pin (501) and the positioning hole (502) are correspondingly provided.

4. The forming apparatus for alumina ceramic parts as described in claim 1, characterized in that, The bottom of the mold cavity (202) is provided with a through hole that penetrates the mold base (20). The diameter of the through hole is smaller than the diameter of the mold cavity (202). The push rod (401) extends into the mold cavity (202) through the through hole.

5. The forming apparatus for alumina ceramic parts as described in claim 1, characterized in that, The first lifting mechanism includes a first cylinder (303) vertically mounted on the frame (10). The telescopic rod of the first cylinder (303) is fixedly connected to the template (30) with the telescopic rod facing downward. The template (30) is provided with multiple vertical guide rods (304). The frame (10) is provided with a guide sleeve sleeved on the guide rods (304).

6. The forming apparatus for alumina ceramic parts as described in claim 1, characterized in that, The second lifting mechanism includes a second cylinder (403) vertically mounted on the frame (10). The telescopic rod of the second cylinder (403) is fixedly connected to the top plate (402) with the telescopic rod facing upward. A vertical guide rail (404) is fixedly provided on the frame (10). The side of the top plate (402) is fitted and slides on the guide rail (404).

7. The forming apparatus for alumina ceramic parts as described in claim 6, characterized in that, The frame (10) is provided with a conveyor (601) located below the second cylinder (403), the conveyor (601) conveys a material basket (602), and the discharge pipe (203) extends spirally downward around the second cylinder (403) to the top of the material basket (602).

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