Powder pipe die extrusion and ejection mechanism

Abstract

The utility model discloses an extrusion and ejection mechanism for a powder pipe die. Relates to the technical field of semiconductor production. When a push rod of an extrusion ejection mechanism pushes a pipe body to be separated, the pipe body is difficult to separate from a mold, and the outer wall of the pipe body is damaged when the push rod forcibly pushes the pipe body to be separated from the mold. The ejection mechanism comprises a fixed frame, a cover plate and an ejection part, a mounting plate is fixedly arranged in the fixed frame, the cover plate is mounted above the fixed frame through a hinge, the ejection part is arranged in the fixed frame, and the ejection part is provided with an air cylinder fixedly arranged in the fixed frame. The transmission toothed bar can be driven to vertically move by starting the air cylinder, the transmission toothed bar vertically moves to drive the two-way lead screw to rotate, the two-way lead screw rotates to drive the reciprocating plate to horizontally reciprocate to knock the outer wall of the lower die, and the lower die vibrates to enable a gap to be formed between an internal forming part and the inner wall of the lower die. And therefore, the condition that the ejection disc is damaged when extruding a molded part is reduced.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor manufacturing technology, specifically to a powder tube die extrusion ejection mechanism. Background Technology

[0002] Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, high-power power conversion and other fields. For example, diodes are devices made of semiconductors. Common semiconductor materials include silicon, germanium and gallium arsenide. Silicon is the most influential of all semiconductor materials. After the powder tube is formed inside the mold, an extrusion ejection mechanism is required.

[0003] Existing extrusion ejection mechanisms typically consist of a cylinder and a push rod. Activating the cylinder drives the push rod to move, which in turn pushes the formed tube to separate from the mold. However, during this process, the tube may become difficult to separate from the mold, and forcibly pushing the push rod to separate the tube from the mold can damage the outer wall of the tube. Utility Model Content

[0004] The purpose of this utility model is to provide a powder tube mold extrusion ejection mechanism to solve the problem mentioned in the background art that the tube body and the mold are difficult to separate during the process of the push rod pushing the tube body and the mold, and that forcibly pushing the push rod to separate the tube body and the mold will cause damage to the outer wall of the tube body.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder tube die extrusion ejection mechanism, comprising a fixed frame, a cover plate, and an ejection part. A mounting plate is fixed inside the fixed frame, and the cover plate is mounted on top of the fixed frame via hinges. The ejection part is located inside the fixed frame and has a cylinder fixed inside the fixed frame. An adjusting plate is fixed at the output end of the cylinder, and a transmission rack is fixed above the adjusting plate. An ejection plate is fixed at the top of the transmission rack. A lower die is located inside the fixed frame and is fixed above a connecting plate. The transmission rack is slidably connected to the bottom of the lower die. A bidirectional lead screw is rotatably connected inside the fixed frame below the connecting plate. A transmission gear is fixed to the bidirectional lead screw, which is connected to the transmission gear via bolts. The transmission gear meshes with the transmission rack. The bidirectional lead screw has a threaded groove, and a reciprocating plate is threadedly connected to the threaded groove. The transmission gear drives the bidirectional lead screw to rotate, thereby causing the reciprocating plate to reciprocate horizontally on both sides of the lower die under the action of the thread.

[0006] By adopting the above technical solution, the cylinder can drive the transmission rack to move vertically. The vertical movement of the transmission rack drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw drives the reciprocating plate to move horizontally and reciprocate, striking the outer wall of the lower mold. The vibration of the lower mold causes gaps to form between the internal molded part and the inner wall of the lower mold, making the internal molded part loose. Since there are fewer bonding points between the molded part and the lower mold, the ejector plate can more easily push the molded part upward, thereby reducing the damage that occurs when the ejector plate extrudes the molded part.

[0007] Preferably, the fixing part is disposed on the outer wall of the fixing frame housing, the fixing part has an extension block fixed to the outer wall of the fixing frame, a steering plate is rotatably connected above the extension block, a strong magnetic block is fixed above the fixing frame, the strong magnetic block is in contact with the steering plate, and the strong magnetic block is located above the cover plate.

[0008] By adopting the above technical solution, the cover plate can be quickly opened or closed by rotating the steering plate, which facilitates the staff to perform regular maintenance on the internal structure of the fixed frame.

[0009] Preferably, a limiting plate is fixed above the fixed frame connecting plate, and the reciprocating plate is rotatably connected to the limiting plate side, with the limiting wheel embedded in the limiting groove of the limiting plate.

[0010] By adopting the above technical solution, the reciprocating plate can be limited by the cooperation of the limiting plate and the limiting wheel, so as to ensure the stability of the reciprocating plate during horizontal movement.

[0011] Preferably, the connecting plate inside the fixed frame has a sliding groove, and the reciprocating plate is slidably connected to the sliding groove of the connecting plate.

[0012] By adopting the above technical solution, the sliding groove of the connecting plate can limit the reciprocating plate and ensure the stability of the reciprocating plate during horizontal movement.

[0013] Preferably, the reciprocating plate is provided with a rubber block on the lower mold side, and the rubber block has a curved surface shape.

[0014] By adopting the above technical solution, the curved rubber block is used to prevent the reciprocating plate from colliding with the lower mold and causing damage.

[0015] Preferably, there are two sets of steering plates, and the two sets of steering plates are the same in shape and size.

[0016] By adopting the above technical solution, the cover plate can be better limited by setting two sets of steering plates, thus ensuring the stability of the cover plate after it is fixed.

[0017] Preferably, the outer ring of the ejector plate is provided with a sealing ring, and the sealing ring of the ejector plate is in contact with the inner wall of the lower mold.

[0018] By adopting the above technical solution, it is possible to prevent raw materials from dripping onto the adjusting plate through the gap between the ejector plate and the lower mold.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: First, the starting cylinder can drive the transmission rack to move vertically, which in turn drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw drives the reciprocating plate to move horizontally and reciprocate, striking the outer wall of the lower mold. The vibration of the lower mold causes a gap between the internal molded part and the inner wall of the lower mold, thereby reducing the damage that may occur when the ejector plate extrudes the molded part. Second, by setting up a fixing part with a steering plate and a strong magnetic block, the cover plate can be quickly opened or closed by rotating the steering plate, which facilitates the staff to perform regular maintenance on the bidirectional lead screw structure inside the fixing frame. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged schematic diagram of part A;

[0022] Figure 3 This is a side view of the present invention.

[0023] Figure 4 This utility model Figure 3 Enlarged schematic diagram of part B;

[0024] Figure 5 This is a front structural diagram of the present invention;

[0025] Figure 6 This utility model Figure 5 Enlarged schematic diagram of part C;

[0026] Figure 7 This utility model Figure 5 Enlarged schematic diagram of part D.

[0027] In the diagram: 1. Fixed frame; 2. Cover plate; 3. Ejector section; 301. Cylinder; 302. Adjusting plate; 303. Transmission rack; 304. Ejector plate; 305. Lower mold; 306. Two-way lead screw; 307. Transmission gear; 308. Reciprocating plate; 309. Limiting plate; 310. Limiting wheel; 4. Fixed section; 401. Extension block; 402. Steering plate; 403. Strong magnetic block. Detailed Implementation

[0028] 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.

[0029] The following is in conjunction with the appendix Figure 1-7 The present invention will be described in further detail below.

[0030] Example 1

[0031] Please see Figure 1-7This embodiment provides a technical solution: a powder tube die extrusion ejection mechanism, including a fixed frame 1, a cover plate 2, and an ejection part 3. The fixed frame 1 has a mounting plate fixed inside. The entire shell of the fixed frame 1 is made of stainless steel to prevent rust and damage during prolonged use. The cover plate 2 is hinged to the top of the fixed frame 1 and has nine sets of circular holes. The ejection part 3 is located inside the fixed frame 1 and has a detachably fixed cylinder 301 inside the fixed frame 1. The cylinder 301 is bolted to the inside of the fixed frame 1 and is electrically connected to a control panel outside the fixed frame 1. The control panel can be used to start the cylinder 301 for operation. An adjusting plate 302 is fixedly mounted on the output end of cylinder 301. The hydraulic rod at the output end of cylinder 301 is connected to the adjusting plate 302 by bolts. The operation of cylinder 301 can drive the adjusting plate 302 to move. A transmission rack 303 is fixedly mounted above the adjusting plate 302. The adjusting plate 302 is fixedly connected to the transmission rack 303 by a fixed connector. The vertical movement of the adjusting plate 302 can drive the transmission rack 303 to move in the same way. An ejector plate 304 is fixedly mounted on the top of the transmission rack 303. The transmission rack 303 is connected to the ejector plate 304 by bolts. The vertical movement of the transmission rack 303 can drive the ejector plate 304 to move vertically. A lower mold 305 is set inside the fixed frame 1. 5. Fixed above the connecting plate, the lower mold 305 is connected to the connecting plate by bolts, facilitating disassembly and replacement by workers. The transmission rack 303 is slidably connected to the bottom of the lower mold 305. Inside the fixed frame 1, located below the connecting plate, is a bidirectional lead screw 306. The bidirectional lead screw 306 is made of stainless steel to prevent rusting during prolonged use. A transmission gear 307 is fixedly fitted onto the outer circumference of the bidirectional lead screw 306. The bidirectional lead screw 306 is connected to the transmission gear 307 by bolts. The transmission gear 307 is located on the non-threaded section of the bidirectional lead screw 306. Rotation of the transmission gear 307 drives the bidirectional lead screw. 306 rotates, and the transmission gear 307 meshes with the transmission rack 303. The transmission rack 303 has teeth on one side of the transmission gear 307, and the surface of the transmission gear 307 is also provided with teeth that mesh with the teeth of the transmission gear 307. The vertical movement of the transmission rack 303 can drive the bidirectional lead screw 306 to rotate. The bidirectional lead screw 306 has a threaded groove, and the threaded groove is threadedly connected to the reciprocating plate 308. The rotation of the bidirectional lead screw 306 can drive the reciprocating plate 308 to move horizontally under the influence of the thread. The rotation of the transmission gear 307 drives the bidirectional lead screw 306 to rotate, so that the reciprocating plate 308 can move horizontally back and forth on both sides of the lower mold 305 under the action of the thread.

[0032] A limiting plate 309 is fixed above the connecting plate of the fixed frame 1. A reciprocating plate 308 is rotatably connected to a limiting wheel 310 on the side of the limiting plate 309, and the limiting wheel 310 is embedded in the limiting groove of the limiting plate 309. The limiting plate 309 and the limiting wheel 310 cooperate to limit the reciprocating plate 308, ensuring the stability of the reciprocating plate 308 during horizontal movement. The connecting plate inside the fixed frame 1 has a sliding groove, and the reciprocating plate 308 is slidably connected to the sliding groove of the connecting plate. The slide can limit the reciprocating plate 308 to ensure the stability of the reciprocating plate 308 during horizontal movement. A rubber block is provided on the side of the reciprocating plate 308 located on the lower mold 305. The rubber block adopts a curved shape. The curved rubber block can fit well against the outer wall of the lower mold 308. The rubber block can buffer the impact force when the reciprocating plate 308 collides with the outer wall of the lower mold 305, thereby avoiding damage caused by the collision between the reciprocating plate 308 and the lower mold 305.

[0033] Example 2

[0034] Please see Figure 1-7 The fixing part 4 is disposed on the outer wall of the housing of the fixing frame 1. The fixing part 4 has an extension block 401 fixed to the outer wall of the fixing frame 1. The extension block 401 is connected to the outer wall of the fixing frame 1 by welding to prevent the extension block 401 from separating from the fixing frame 1. A steering plate 402 is rotatably connected above the extension block 401. The steering plate 402 is made of magnetic stainless steel. A strong magnetic block 403 is fixed above the fixing frame 1 and is in contact with the steering plate 402. The strong magnetic block 403 is located above the cover plate 2. The cover plate 2 can be rotated by the steering plate 402. The cover plate 2 can be opened and closed by rotating the steering plate 402, which facilitates the regular maintenance of the internal structure of the fixed frame 1 by the staff. There are two sets of steering plates 402, and the two sets of steering plates 402 are the same in shape and size. By setting two sets of steering plates 402, the cover plate 2 can be better limited and the stability of the cover plate 2 after it is fixed is ensured. The outer ring of the ejector plate 304 is provided with a sealing ring, and the sealing ring of the ejector plate 304 is in contact with the inner wall of the lower mold 305 to prevent the raw material from dripping onto the upper part of the adjusting plate 302 through the gap between the ejector plate 304 and the lower mold 305.

[0035] Working principle: First, when the formed tube needs to be extruded, cylinder 301 is activated. Cylinder 301 drives adjusting plate 302 to move upward. The upward movement of adjusting plate 302 drives transmission rack 303 to move in the same direction. Since transmission rack 303 is meshed with transmission gear 307, the vertical movement of transmission rack 303 drives transmission gear 307 to rotate. The rotation of transmission gear 307 drives double-acting screw 306 to rotate. Since double-acting screw 306 is threadedly connected to reciprocating plate 308, and reciprocating plate 308... 08 is slidably connected to the internal connecting plate of the fixed frame 1. Therefore, the rotation of the bidirectional lead screw 306 will drive the reciprocating plate 308 to reciprocate horizontally under the influence of the thread. The reciprocating horizontal movement of the reciprocating plate 308 will knock on the outer wall of the lower mold 305, causing the lower mold 305 to vibrate. The vibration of the lower mold 305 will cause the internal tube to loosen. During the upward movement of the transmission rack 303, it will also drive the ejector plate 304 to move upward. The upward movement of the ejector plate 304 will push the loosened pipe upward and gradually separate it from the lower mold 305.

[0036] Secondly, when maintenance is required inside the fixed frame 1, the steering plate 402 is manually rotated to separate the strong magnetic block 403, and the steering plate 402 is no longer above the cover plate 2. Then, the cover plate 2 can be pulled to rotate through the hole in the cover plate 2, so that the internal structure of the fixed frame 1 can be maintained regularly. After maintenance, the cover plate 2 is rotated again to be above the lower mold 305, and then the steering plate 402 is rotated in the opposite direction to fit against the strong magnetic block 403 to complete the fixation of the cover plate 2. The operation is simple and convenient for staff to maintain the internal structure of the fixed frame 1.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A powder tube die extrusion ejection mechanism, characterized in that, include: A fixed frame, wherein a mounting plate is fixedly installed inside the fixed frame; A cover plate, which is installed above the fixed frame via hinges; The ejector section is located inside the fixed frame. The ejector section has a cylinder fixed inside the fixed frame. An adjusting plate is fixed at the output end of the cylinder. A transmission rack is fixed above the adjusting plate. An ejector plate is fixed at the top of the transmission rack. The fixed frame contains a lower mold, which is fixed above the connecting plate. The transmission rack is slidably connected to the bottom of the lower mold. A bidirectional lead screw is rotatably connected inside the fixed frame below the connecting plate. The bidirectional lead screw is fixed with a transmission gear, which meshes with the transmission rack. The bidirectional lead screw has a threaded groove, and a reciprocating plate is threaded into the threaded groove. The transmission gear drives the bidirectional lead screw to rotate, thereby causing the reciprocating plate to reciprocate horizontally on both sides of the lower mold.

2. The powder tube die extrusion ejection mechanism according to claim 1, characterized in that, The powder tube die extrusion and ejection mechanism further includes: The fixing part is disposed on the outer wall of the fixing frame housing. The fixing part has an extension block fixed to the outer wall of the fixing frame. A steering plate is rotatably connected above the extension block. A strong magnetic block is fixed above the fixing frame and is in contact with the steering plate. The strong magnetic block is located above the cover plate.

3. The powder tube die extrusion ejection mechanism according to claim 1, characterized in that: A limiting plate is fixed above the fixed frame connecting plate. The reciprocating plate is rotatably connected to the limiting plate side, and the limiting wheel is embedded in the limiting groove of the limiting plate.

4. The powder tube die extrusion ejection mechanism according to claim 1, characterized in that: The connecting plate inside the fixed frame has a sliding groove, and the reciprocating plate is slidably connected to the sliding groove of the connecting plate.

5. The powder tube die extrusion ejection mechanism according to claim 1, characterized in that: The reciprocating plate has a rubber block on one side of the lower mold, and the rubber block has a curved shape.

6. The powder tube die extrusion ejection mechanism according to claim 2, characterized in that: There are two sets of steering plates, and the two sets of steering plates are the same in shape and size.

7. The powder tube die extrusion ejection mechanism according to claim 1, characterized in that: The outer ring of the ejector plate is provided with a sealing ring, and the sealing ring of the ejector plate is in contact with the inner wall of the lower mold.

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