Collecting device for silicon carbide powder

Abstract

The utility model discloses a collecting device for silicon carbide powder, and belongs to the technical field of silicon carbide collection. Comprising a powder hydraulic machine, a material pushing mechanism arranged behind a base of the powder hydraulic machine and a material guiding plate arranged in front of the base and inclining downwards. Collecting devices for collecting silicon carbide powder are symmetrically arranged on the two sides of the base, each collecting device comprises collecting openings formed in the two sides of the upper portion of the base, a negative pressure pump and a recycling box, the negative pressure pumps and the recycling boxes are arranged on the two sides of the base respectively, the collecting openings, the negative pressure pumps and the recycling boxes are connected through hoses, a plurality of through holes are evenly formed in the material guiding plate, and a collecting box is arranged below the material guiding plate. The collecting box is connected with a negative-pressure pump through a hose; by means of the collecting device, silicon carbide powder floating on the base can be collected into the recycling box through the collecting opening under the action of the negative pressure pump after parts are subjected to die casting through the powder hydraulic machine, through the through hole, after the parts are pushed out of the base through the pushing mechanism, the powder falling from the parts can fall into the collecting box, and then the powder is recycled into the collecting box through the negative pressure pump.

Description

Technical Field

[0001] This invention provides a device for collecting silicon carbide powder, belonging to the field of silicon carbide collection technology. Background Technology

[0002] Silicon carbide is an inorganic substance produced by high-temperature smelting of raw materials such as quartz sand, petroleum coke, and sawdust in an electric resistance furnace. Silicon carbide is a semiconductor that exists in nature as the extremely rare mineral moissanite. It is now being mass-produced into powder and crystals for use as abrasives. Silicon carbide produced industrially in China is divided into two types: black silicon carbide and green silicon carbide, both of which are hexagonal crystals.

[0003] Currently, factories using silicon carbide powder to process products all use powder molding. This involves pouring silicon carbide powder into a mold of a hydraulic press and pressing it into the required shape. Then, the silicon carbide is heated in a furnace to allow the powder to bond. However, when the hydraulic press is pressing down, it needs to expel the air from the mold. As a result, gaps are left between the mold core and the cavity. Therefore, some silicon carbide powder splashes onto the outside of the hydraulic press mold during molding. This powder floats around the hydraulic press, causing waste and affecting the working environment. Utility Model Content

[0004] The present invention provides a device for collecting silicon carbide powder, which can solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention proposes the following technical solution: a collection device for silicon carbide powder, comprising a powder hydraulic press, a pushing mechanism disposed behind the base of the powder hydraulic press, and a guide plate disposed in front of the base and inclined downwards; collection devices for collecting silicon carbide powder are symmetrically arranged on both sides of the base, the collection devices comprising collection ports disposed on both sides above the base, a negative pressure pump and a recovery box disposed on both sides of the base respectively, the collection ports, the negative pressure pump and the recovery box being connected by a hose, a plurality of through holes being evenly arranged on the guide plate, and a collection box being disposed below the guide plate, the collection box being connected to the negative pressure pump by a hose;

[0006] As an improvement, the powder hydraulic press includes a base, guide columns at the four corners above the base, a hydraulic cylinder at the upper end of the guide column, a hydraulic rod at the lower middle part of the hydraulic cylinder, and a pressure plate at the end of the hydraulic rod and sleeved on the outside of the guide column. A stamping die is provided above the base and below the pressure plate.

[0007] As an improvement, the pushing mechanism includes a push block located at the rear of the base, an air pump that moves the push block forward of the base, and an air pump mounting base located at the rear of the base.

[0008] As an improvement, the width of the collection port is the same as the width of the base, the length of the guide plate is the same as the length of the base, the length of the collection box is the same as the length of the guide plate, and the width of the collection box is the same as the vertical width of the guide plate.

[0009] As an improvement, the inside of the collection box is provided with a trapezoidal cavity, the bottom of which is slightly smaller than the diameter of the hose, and the two ends of the trapezoidal cavity are provided with connection holes for connecting the hose on the side wall of the collection box.

[0010] The beneficial effects of this utility model are as follows: By setting collection devices on both sides of the base of the powder hydraulic press, the silicon carbide powder floating on the base after die casting can be collected into the recycling box through the collection port under the action of the negative pressure pump. By setting through holes on the guide plate, the silicon carbide powder falling off the parts after the pushing mechanism pushes the parts out of the base can fall into the collection box and then be recycled into the collection box by the negative pressure pump. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a silicon carbide powder collection device according to the present invention.

[0012] Figure 2 This is a schematic diagram of the inside of the collection box of a silicon carbide powder collection device according to the present invention.

[0013] 1. Powder hydraulic press; 101. Base; 102. Guide column; 103. Hydraulic cylinder; 104. Hydraulic rod; 105. Pressure plate; 2. Pushing mechanism; 201. Push block; 202. Air pump; 203. Air pump mounting base; 3. Guide plate; 4. Collection device; 401. Collection port; 402. Negative pressure pump; 403. Recovery box; 404. Hose; 5. Through hole; 6. Collection box; 601. Trapezoidal cavity; 602. Connection hole. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] according to Figure 1As shown in Figure 2: This utility model provides a collection device for silicon carbide powder, including a powder hydraulic press 1, a pushing mechanism 2 disposed behind the base 101 of the powder hydraulic press 1, and a guide plate 3 disposed in front of the base 101 and inclined downwards; the powder hydraulic press 1 includes a base 101, guide columns 102 disposed at the four corners above the base 101, a hydraulic cylinder 103 disposed at the upper end of the guide column 102, a hydraulic rod 104 disposed at the lower middle part of the hydraulic cylinder 103, and a pressure plate 105 disposed at the end of the hydraulic rod 104 and sleeved on the outside of the guide column 102. A stamping die is provided above the base 101 and below the pressure plate 105. A collection device 4 for collecting silicon carbide powder is symmetrically arranged on both sides of the base 101. The collection device 4 includes a collection port 401 disposed on both sides above the base 101, a negative pressure pump 402 and a recovery box 403 disposed on both sides of the base 101 respectively. 2. The recycling box 403 is connected via a hose 404. The guide plate 3 has several evenly spaced through holes 5. A collection box 6 is located below the guide plate 3. The collection box 6 is connected to a negative pressure pump 402 via the hose 404. The width of the collection port 401 is the same as the width of the base 101. The length of the guide plate 3 is the same as the length of the base 101. The length of the collection box 6 is the same as the length of the guide plate 3. The width of the collection box 6 is the same as the vertical width of the guide plate 3. By setting collection devices 4 on both sides of the base 101 of the powder hydraulic press 1, the silicon carbide powder floating on the base 101 after die casting can be collected into the recycling box 403 through the collection port 401 under the action of the negative pressure pump 402. By setting through holes 5 on the guide plate 3, the silicon carbide powder falling from the parts after the pushing mechanism 2 pushes the parts out of the base 101 can fall into the collection box 6 and then be recycled into the collection box 6 by the negative pressure pump 402.

[0016] The pusher mechanism 2 includes a pusher block 201 located above and behind the base 101, an air pump 202 that moves the pusher block 201 forward toward the base 101, and an air pump mounting base 203 located behind the base 101. Thus, when the die-casting of the part is completed, starting the air pump 202 can move the pusher block 201 forward, thereby pushing the part out.

[0017] The collection box 6 has a trapezoidal cavity 601 inside. The bottom of the trapezoidal cavity 601 is slightly smaller than the diameter of the hose 404. The two ends of the trapezoidal cavity 601 are provided with connection holes 602 for connecting the hose 404 on the side wall of the collection box 6. In this way, the silicon carbide powder that falls into the collection box 6 can fall to the bottom of the collection box 6. Then, the negative pressure pump 402 sucks the silicon carbide powder into the recovery box 403 through the hose 404.

[0018] The principle of this utility model is as follows: In use, silicon carbide powder is first poured into the mold, and then the powder hydraulic press 1 is started. After the powder hydraulic press 1 presses the powder into shape, the negative pressure pump 402 and the air pump 202 are started. The air pump 202 will cause the push block 201 to move forward, thereby pushing the part onto the guide plate 3. The negative pressure pump 202 will suck the silicon carbide powder remaining on the surface of the base 101 into the collection box 6 through the collection port 401. When the part reaches the guide plate 3, the fallen silicon carbide powder will reach the trapezoidal cavity 601 of the collection box 6 through the through hole 5. When the silicon carbide powder reaches the bottom of the trapezoidal cavity 601, under the action of the negative pressure pump 402, the silicon carbide powder will be sucked into the recovery box 403 through the hose 404, thereby collecting the silicon carbide powder.

[0019] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A collection device for silicon carbide powder, comprising a powder hydraulic press (1), a pushing mechanism (2) disposed behind a base (101) of the powder hydraulic press (1), and a guide plate (3) disposed in front of the base (101) and inclined downwards; characterized in that: The base (101) is symmetrically provided with a collection device (4) for collecting silicon carbide powder on both sides. The collection device (4) includes a collection port (401) on both sides above the base (101), a negative pressure pump (402) and a recycling box (403) respectively on both sides of the base (101). The collection port (401), the negative pressure pump (402) and the recycling box (403) are connected by a hose (404). The guide plate (3) is evenly provided with several through holes (5). The collection box (6) is provided below the guide plate (3). The collection box (6) is connected to the negative pressure pump (402) through a hose (404).

2. The device for collecting silicon carbide powder according to claim 1, characterized in that: The powder hydraulic press (1) includes a base (101), guide columns (102) located at the four corners above the base (101), a hydraulic cylinder (103) located at the upper end of the guide column (102), a hydraulic rod (104) located at the middle of the lower part of the hydraulic cylinder (103), and a pressure plate (105) located at the end of the hydraulic rod (104) and sleeved on the outside of the guide column (102). A stamping die is provided above the base (101) and below the pressure plate (105).

3. The device for collecting silicon carbide powder according to claim 2, characterized in that: The pushing mechanism (2) includes a push block (201) disposed above the rear of the base (101), an air pump (202) for moving the push block (201) forward of the base (101), and an air pump mounting base (203) disposed behind the base (101).

4. The device for collecting silicon carbide powder according to claim 2, characterized in that: The width of the collection port (401) is the same as the width of the base (101), the length of the guide plate (3) is the same as the length of the base (101), the length of the collection box (6) is the same as the length of the guide plate (3), and the width of the collection box (6) is the same as the vertical width of the guide plate (3).

5. The device for collecting silicon carbide powder according to claim 1, characterized in that: The collection box (6) has a trapezoidal cavity (601) inside. The bottom of the trapezoidal cavity (601) is slightly smaller than the diameter of the hose (404). The two ends of the trapezoidal cavity (601) are provided with connection holes (602) for connecting the hose (404) on the side wall of the collection box (6).

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