Powder pressing die

Abstract

The utility model discloses a powder pressing die which comprises a base, stand columns are fixedly connected to the four ends of the upper portion of the base, a movable frame is connected to the stand columns in a sliding mode, a top plate is fixedly connected to the tops of the stand columns, a first air cylinder is fixedly connected to the middle of the upper portion of the top plate, and the extending end of the first air cylinder is fixedly connected with the upper end of the movable frame. A first air cylinder, a movable frame, an upper die and a lower die are fixedly connected to the middle of the lower portion of the movable frame, and a lower die is fixedly connected to the middle of the upper portion of the base. And a second motor, a two-way screw, a first threaded block, a first rotating shaft and a second rotating shaft which are arranged in the base are matched, so that the push plate can push out materials subjected to internal compression molding, the molding efficiency of the whole powder pressing mold can be effectively improved, and continuous machining operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium nitride powder processing technical field, concretely is powder pressing mould. BACKGROUND

[0002] Powder metallurgy is the process technology of preparing metal powder or using metal powder as raw material, through forming and sintering, to manufacture metal materials, composite materials and various types of products; powder pressing mould is the main tool of powder pressing, which is related to the quality, cost, safety and productivity of powder metallurgy product production, and has extremely important influence on powder metallurgy process and parts;

[0003] In the prior art, when aluminium nitride powder is pressed, the aluminium nitride powder is usually placed in the inner cavity of the concave die, then the convex die is moved to the inside of the concave die by using a power mechanism to extrude the aluminium nitride powder. This forming method has the defect that the aluminium nitride powder product is not convenient to take out after forming. In addition, during the stamping process of the upper die seat to the lower die seat, the flow of air can easily cause part of the powder to float, resulting in waste of raw materials and also causing certain impact on the environment and the health of workers. Therefore, it is necessary to make improvements. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a powder pressing mould to solve the problem that the powder pressing mould in the prior art is not convenient to take out after forming the aluminium nitride powder product.

[0005] To achieve the above-mentioned purpose, a powder pressing mould is provided, which comprises a base, four ends of the upper part of the base are fixedly connected with columns, a movable frame is slidably connected to the columns, the top of the columns is fixedly connected with a top plate, the upper middle part of the top plate is fixedly connected with a cylinder one, the extension end of the cylinder one is fixedly connected with the upper end of the movable frame, the lower middle part of the movable frame is fixedly connected with an upper die, and the upper middle part of the base is fixedly connected with a lower die.

[0006] Both ends of the inner side of the base are fixedly connected with fixed plates, one end of the outer side of the fixed plates is fixedly connected with a motor two, a bidirectional screw rod is rotatably connected in the fixed plates, two threaded blocks one are threadedly connected on the bidirectional screw rod, the upper end of the threaded blocks one is fixedly connected with a rotating shaft one, and the inside of the lower die is provided with a push plate.

[0007] According to the powder pressing mould, the lower die is arranged in the inside of the base, both ends of the inner side of the bottom of the lower die are fixedly connected with limit blocks, and the push plate is arranged above the limit blocks.

[0008] According to the powder pressing mould, both ends of the lower side of the push plate are fixedly connected with rotating shaft two, and the inside of the rotating shaft one and the rotating shaft two is rotatably connected with a connecting rod.

[0009] According to the powder pressing die, one end of the outer side of the base is provided with a dust suction box, and a dust suction fan is arranged through the upper portion of the dust suction box.

[0010] According to the powder pressing die, the other end of the dust suction box is provided with a dust suction pipe, and the other end of the dust suction pipe is provided with a dust suction head.

[0011] According to the powder pressing die, the base is fixedly connected with a connecting frame away from the dust suction box, and the outer end of the connecting frame is fixedly connected with a motor one.

[0012] According to the powder pressing die, a slot is arranged in the connecting frame, a lead screw is rotatably connected in the slot, the output end of the motor one is fixedly connected with the lead screw, a threaded block two is threadedly connected on the lead screw, a cylinder two is fixedly connected with the upper end of the threaded block two, and the extension end of the cylinder two is fixedly connected with the dust suction head.

[0013] Compared with the prior art, the beneficial effects of the powder pressing die are as follows:

[0014] The cylinder one, the movable frame, the upper die and the lower die can quickly press and form the powder, and after the forming is completed, the motor two, the bidirectional screw rod, the threaded block one, the shaft one and the shaft two in the base can make the push plate push the material pressed and formed inside outward, so that the forming efficiency of the whole powder pressing die can be effectively improved, and continuous work operation is facilitated.

[0015] The movable dust suction assembly arranged at one end of the outer side of the base can collect the excess powder floating in the air for recycling, and can improve the cleanliness of the working environment and protect the workers.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments;

[0018] Figure 1 It is a perspective view of the powder pressing die of the present application;

[0019] Figure 2 It is a sectional view of the powder pressing die of the present application;

[0020] Figure 3 It is a top view of the powder pressing die of the present application;

[0021] Figure 4 It is a push plate assembly schematic view of the powder pressing die of the present application.

[0022] In the figure: 1, top plate; 2, stand; 3, movable frame; 4, dust suction fan; 5, dust suction box; 6, base; 7, lower die; 8, upper die; 9, air cylinder one; 10, connecting rod; 11, bidirectional screw; 12, threaded block one; 13, rotating shaft one; 14, rotating shaft two; 15, dust suction head; 16, lead screw; 17, motor one; 18, connecting frame; 19, slot; 20, threaded block two; 21, air cylinder two; 22, dust suction pipe; 23, push plate; 24, motor two; 25, limiting block; 26, fixed plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme: powder compression mould, including base 6, the upper side four end fixed connection of base 6 has stand 2, stand 2 is slidably connected with movable frame 3, the top of stand 2 is fixedly connected with top plate 1, the upper side middle part of top plate 1 is fixedly connected with air cylinder one 9, the extension end of air cylinder one 9 is fixedly connected with the upper end of movable frame 3, the lower side middle part of movable frame 3 is fixedly connected with upper die 8, the upper side middle part of base 6 is fixedly connected with lower die 7, start air cylinder one 9 can drive movable frame 3 to slide on stand 2, by stand 2 can improve the stability of movable frame 3 when lifting adjustment, ensure that the upper die 8 below movable frame 3 stably enters the inside of lower die 7, reach the effect of powder compression forming;

[0025] The inner side both ends of base 6 are fixedly connected with fixed plate 26, the outer side one end of fixed plate 26 is fixedly connected with motor two 24, the inside of fixed plate 26 is rotatably connected with bidirectional screw 11, two threaded blocks one 12 are threadedly connected on bidirectional screw 11, the upper end of threaded block one 12 is fixedly connected with rotating shaft one 13, the inside of lower die 7 is provided with push plate 23, after forming, air cylinder one 9 drives upper die 8 to exit the inside of lower die 7, start motor two 24 drives bidirectional screw 11 to rotate, under the action of threaded connection, can make two threaded blocks one 12 relative motion, and under the interaction of connecting rod 10 and both end rotating shaft, with the mutual approach of two threaded blocks one 12, connecting rod 10 drives the push plate 23 upwards, thereby can push the formed material from the inside of lower die 7, both can reduce the tediousness of manual material taking of staff after forming, and can improve its processing efficiency;

[0026] The lower die 7 is arranged in the interior of the base 6, the bottom interior of the lower die 7 is fixedly connected with the limiting block 25 at both ends, and the push plate 23 is arranged above the limiting block 25. The limiting block 25 can support and limit the push plate 23, so as to ensure that the connecting rod 10 below will not be damaged by excessive pressure during the molding process. The bottom of the two threaded blocks 12 in the patent is in contact with the bottom of the base 6, thereby limiting the sliding of the threaded blocks 12 to ensure stable sliding.

[0027] The lower ends of the push plate 23 are fixedly connected with the shaft 14, the shaft 13 and the shaft 14 are rotatably connected with the connecting rod 10, one end of the outer side of the base 6 is provided with the dust collection box 5, the dust collection fan 4 is arranged above the dust collection box 5, the dust collection pipe 22 is arranged at the other end of the dust collection box 5, and the dust collection head 15 is arranged at the other end of the dust collection pipe 22. Start the dust collection fan 4, and the dust collection head 15 sends the powder floating in the air into the dust collection box 5 through the dust collection pipe 22 for collection, so as to collect the excess powder floating in the air for reuse and improve the cleanliness of the working environment to protect the workers.

[0028] The base 6 is fixedly connected with the connecting frame 18 away from the dust collection box 5, the outer end of the connecting frame 18 is fixedly connected with the motor 17, the interior of the connecting frame 18 is provided with the slot 19, the interior of the slot 19 is rotatably connected with the lead screw 16, the output end of the motor 17 is fixedly connected with the lead screw 16, the lead screw 16 is threadedly connected with the threaded block 20, the upper end of the threaded block 20 is fixedly connected with the air cylinder 21, and the extension end of the air cylinder 21 is fixedly connected with the dust collection head 15. Start the motor 17 to drive the lead screw 16 to rotate, and under the action of the threaded connection, the threaded block 20 can drive the dust collection assembly to move, so as to improve the dust collection range and adjust the height of the dust collection assembly in cooperation with the air cylinder 21, thereby improving the collection and absorption effect of the powder.

[0029] Working principle: when in use, the powder is filled in the interior of the lower die 7, the cylinder 9 above is started to drive the movable frame 3 to move on the stand 2, so that the upper die 8 below the movable frame 3 slowly enters the interior of the lower die 7, and the powder in the interior of the lower die 7 is pressed by the upper die 8, so that the pressing and molding work is completed. After the molding is completed, the cylinder 9 drives the upper die 8 to exit the interior of the lower die 7, the motor 24 is started to drive the bidirectional screw rod 11 to rotate, and under the action of the threaded connection, the two threaded blocks 12 can move relative to each other. Under the interaction of the connecting rod 10 and the two ends of the shaft, as the two threaded blocks 12 move closer to each other, the connecting rod 10 drives the push plate 23 above to move upward, so that the molded material can be pushed out of the interior of the lower die 7. This can reduce the tediousness of manual material taking after molding, improve the processing efficiency, and is beneficial to continuous pressing and molding work.

[0030] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill of the people in the prior art within the premise of not departing from the utility model's tenet.

Claims

1. Powder compacting die comprising a base (6), characterized in that, The upper four ends of the base (6) are fixedly connected with a stand (2), the stand (2) is slidably connected with a movable frame (3), the top of the stand (2) is fixedly connected with a top plate (1), the upper middle part of the top plate (1) is fixedly connected with a cylinder one (9), the extending end of the cylinder one (9) is fixedly connected with the upper end of the movable frame (3), the lower middle part of the movable frame (3) is fixedly connected with an upper die (8), the upper middle part of the base (6) is fixedly connected with a lower die (7); The inner sides of the base (6) are fixedly connected with fixed plates (26), one end of the outer side of the fixed plate (26) is fixedly connected with a motor two (24), the inside of the fixed plate (26) is rotatably connected with a bidirectional screw rod (11), the bidirectional screw rod (11) is threadedly connected with two threaded blocks one (12), the upper end of the threaded block one (12) is fixedly connected with a rotating shaft one (13), the inside of the lower die (7) is provided with a push plate (23).

2. The powder compacting die of claim 1, wherein: The lower die (7) is provided in the inside of the base (6), the bottom inner sides of the lower die (7) are fixedly connected with limit blocks (25), and the push plate (23) is arranged above the limit blocks (25).

3. The powder compacting die of claim 1, wherein: The lower ends of the push plate (23) are fixedly connected with rotating shafts two (14), the inside of the rotating shaft one (13) and the rotating shaft two (14) is rotatably connected with a connecting rod (10).

4. The powder compacting die of claim 1, wherein: One end of the outer side of the base (6) is provided with a dust collection box (5), the upper part of the dust collection box (5) is provided with a dust collection fan (4).

5. The powder compacting die of claim 4, wherein: The other end of the dust collection box (5) is provided with a dust collection pipe (22), the other end of the dust collection pipe (22) is provided with a dust collection head (15).

6. The powder compacting die of claim 4, wherein: The side, away from the dust collection box (5), of the base (6) is fixedly connected with a connecting frame (18), the outer end of the connecting frame (18) is fixedly connected with a motor one (17).

7. The powder compacting die of claim 6, wherein: The inside of the connecting frame (18) is provided with a slot (19), the inside of the slot (19) is rotatably connected with a lead screw (16), the output end of the motor one (17) is fixedly connected with the lead screw (16), the lead screw (16) is threadedly connected with a threaded block two (20), the upper end of the threaded block two (20) is fixedly connected with a cylinder two (21), the extending end of the cylinder two (21) is fixedly connected with the dust collection head (15).

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