Powder metallurgy pressing die

Abstract

The utility model relates to the technical field of powder metallurgy, in particular to a powder metallurgy pressing die. The powder metallurgy pressing die comprises a frame body, an air cylinder is arranged at the inner top of the frame body, a sliding frame is arranged at the end of the air cylinder, and a shielding assembly is arranged on the sliding frame. And the shielding assembly comprises a top ring, the top ring is arranged on the sliding frame, telescopic rods which are symmetrically distributed are arranged on the two sides of the bottom of the top ring, the ends of the two telescopic rods are provided with a bottom ring which is fixedly connected, and a protective cover is erected between the bottom ring and the top ring. According to the powder metallurgy pressing die, due to the arrangement of the shielding assembly, when the powder metallurgy pressing die is used, the outer portion of the upper die is covered, air pressure generated during extrusion can be reduced, powder is extruded outwards, the phenomenon that the powder splashes to pollute air is caused, and therefore the probability that workers inhale the powder and hurt the bodies of the workers can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder metallurgy technical field especially relates to a kind of powder metallurgy pressing mould. BACKGROUND

[0002] Powder metallurgy is the process technology of preparing metal powder or using metal powder as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. During the powder metallurgy process, the metal powder needs to be pressed into the required product form, and then the pressed product is sintered.

[0003] When pressing and forming composite materials, a pressing mold is needed. However, during the use of the existing pressing mold, the gas pressure generated during extrusion of the lower pressing mold and the composite material can cause the powder to splash outward and be inhaled by the workers, thereby increasing the probability of physical harm to the workers.

[0004] Therefore, it is necessary to provide a new powder metallurgy pressing mold to solve the above technical problems. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of powder metallurgy pressing mold.

[0006] The powder metallurgy pressing mold provided by the utility model comprises a frame body, a gas cylinder is arranged at the inner top of the frame body, a sliding frame is arranged at the end of the gas cylinder, and a shielding assembly is arranged on the sliding frame.

[0007] The shielding assembly comprises a top ring, the top ring is arranged on the sliding frame, two telescopic rods are symmetrically arranged at the bottom of the top ring, the ends of the two telescopic rods are fixedly connected to a bottom ring, a protective cover is arranged between the bottom ring and the top ring, a spring a is arranged outside the telescopic rod, and the two ends of the spring a are fixedly connected to the corresponding top ring and bottom ring.

[0008] Preferably, a collecting assembly is arranged outside the frame body, the collecting assembly comprises a collecting box, the collecting box is arranged on the side wall of the frame body, a fan is arranged on one side of the inside of the collecting box, and an air inlet pipe is arranged on the other side of the inside of the collecting box.

[0009] Preferably, an adapter pipe is connected to the end of the air inlet pipe, an air suction ring is connected to the end of the adapter pipe, the bottom of the air suction ring is connected to the top of the bottom ring, the air suction ring is located inside the protective cover, and the adapter pipe is a flexible pipe.

[0010] Preferably, an installation cylinder is arranged at the position opposite to the input end of the fan inside the collecting box, a filter screen is arranged at the end of the installation cylinder, a support bar is fixedly connected inside the installation cylinder, a linkage rod is rotatably connected at the center of the side of the support bar close to the fan, and the end of the linkage rod is connected with the output shaft of the blade of the fan.

[0011] Preferably, two sliding rods are inserted into the support bar in a sliding connection and symmetrical distribution, a beating disc is arranged at the side of the two sliding rods close to the filter screen, an inclined block is arranged at the end of the two sliding rods close to the fan, a spring b is arranged at the side of the outer wall of the support bar close to the inclined block, and the two ends of the spring b are fixedly connected with the corresponding support bar and inclined block.

[0012] Preferably, an extrusion rod is fixedly connected to the outer wall of the linkage rod, and the end of the extrusion rod abuts against and is slidingly connected with the outer wall of the inclined block.

[0013] Preferably, a supporting frame is arranged inside the frame body, a feeding component is arranged at the top of the supporting frame, a lower die is arranged inside the supporting frame, an upper die is arranged at the position opposite to the lower die at the bottom of the sliding frame, and the outer wall specifications of the lower die and the upper die are smaller than the inner wall specifications of the protective cover.

[0014] Compared with the related art, the powder metallurgy pressing die has the following beneficial effects:

[0015] 1. The outer part of the upper die is covered when the shielding assembly is arranged, so that the air pressure during extrusion can reduce the phenomenon of powder spattering and air pollution, thereby reducing the probability of harm to the body caused by the inhalation of powder by the workers.

[0016] 2. The dust blocked by the shielding assembly can be sucked into the collecting box by the fan for collection, thereby facilitating the recycling of the dust in the later period.

[0017] 3. The beating disc is arranged to hammer and clean the filter screen during the process of absorbing and filtering the dust, thereby reducing the phenomenon of blockage of the filter screen and improving the filtering effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic view of a preferred embodiment of the powder metallurgy pressing die is provided.

[0019] Figure 2 The structure schematic view of a preferred embodiment of the powder metallurgy pressing die is provided. Figure 1 The partial cross-sectional structure schematic view of the connection between the shielding assembly and the collecting assembly is shown.

[0020] Figure 3 for Figure 2 A partial cross-sectional structural diagram of the shielding component shown.

[0021] Figure 4 for Figure 2 A partial cross-sectional structural diagram of the collection component is shown.

[0022] Figure 5 for Figure 4 A partial cross-sectional structural schematic diagram of the support cylinder and its components shown;

[0023] Figure 6 for Figure 1 The diagram shows the structure of the frame and its components.

[0024] The following components are labeled in the diagram: 1. Frame; 2. Support frame; 21. Lower mold; 22. Feeding component; 3. Cylinder; 31. Sliding frame; 32. Upper mold; 4. Shielding component; 41. Top ring; 42. Bottom ring; 43. Protective cover; 44. Telescopic rod; 441. Spring a; 5. Collection component; 51. Collection box; 511. Fan; 512. Inlet pipe; 52. Adapter pipe; 53. Suction ring; 6. Mounting cylinder; 61. Filter screen; 7. Support bar; 71. Linkage rod; 72. Extrusion rod; 8. Sliding rod; 81. Impact plate; 82. Inclined block; 83. Spring b. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 6 The present invention provides a powder metallurgy pressing mold, which includes: a frame 1, a cylinder 3 provided on the inner top of the frame 1, a sliding frame 31 provided at the end of the cylinder 3, and a blocking component 4 provided on the sliding frame.

[0028] In the embodiments of this utility model, please refer to Figures 1 to 6 The shielding component 4 includes a top ring 41, which is mounted on the sliding frame 31. Symmetrically distributed telescopic rods 44 are provided on both sides of the bottom of the top ring 41. The ends of the two telescopic rods 44 are provided with the same fixedly connected bottom ring 42. A protective cover 43 is provided between the bottom ring 42 and the top ring 41. A spring a441 is sleeved on the outside of the telescopic rods 44, and the two ends of the spring a441 are fixedly connected to the corresponding top ring 41 and bottom ring 42.

[0029] Need to explain is: when the cylinder 3 is working and the upper die 32 is inserted into the lower die 21 to extrude and shape the powder in the lower die 21, the bottom ring 42 outside the upper die 32 will first abut against the outside of the top lower die 21 of the support frame 2 under the action of the force of the spring a 441, and the outer protective cover 43 can cover and shield the outside of the upper die 32, so that when the upper die 32 extrudes the powder in the lower die 21 towards the outside from the gap, the protective cover 43 can shield the powder to avoid the phenomenon of random drifting of the powder;

[0030] And through the setting of the telescopic rod 44, when the protective cover 43 is shrunk upwards under the extrusion force, the telescopic rod 44 can guide the shrinking track of the protective cover 43, so that the shrinking and folding of the protective cover 43 is more uniform, and through the setting of the spring a 441, when the sliding frame 31 is reset, the spring a 441 can extrude the bottom ring 42 through the action of the spring a 441, so that the bottom ring 42 drives the protective cover 43 to reset, and the protective cover 43 can still shield and protect in the subsequent work.

[0031] In the embodiment of the utility model, please refer to Figures 1 to 6 The outer part of the frame body 1 is provided with a collecting assembly 5, the collecting assembly 5 includes a collecting box 51, the collecting box 51 is arranged on the side wall of the frame body 1, one side in the collecting box 51 is provided with a communicating fan 511, and the other side in the collecting box 51 is provided with an air inlet pipe 512, the end of the air inlet pipe 512 is provided with a communicating adapter pipe 52, the end of the adapter pipe 52 is provided with a communicating air suction ring 53, the bottom of the air suction ring 53 is connected with the top of the bottom ring 42, the air suction ring 53 is located in the protective cover 43, and the adapter pipe 52 is a flexible pipe, a mounting cylinder 6 is arranged on the part opposite to the input end of the fan 511 in the collecting box 51, the end of the mounting cylinder 6 is provided with a filter screen 61, the inside of the mounting cylinder 6 is arranged with a fixedly connected support strip 7, the center of the side close to the fan 511 of the support strip 7 is provided with a rotatably connected linkage rod 71, and the end of the linkage rod 71 is connected with the output shaft of the blade in the fan 511.

[0032] Need to explain is: in the extruding and shaping process of the powder by the upper die 32 and the lower die 21, the working fan 511 can suck the sprayed dust into the collecting box 51 through the air suction ring 53 on the bottom ring 42, and the gas in the air inlet collecting box 51 can be discharged outward through the filter screen 61, so that the powder can be filtered and collected for recycling in the later period.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 6The inside of the support strip 7 is inserted with two sliding rods 8 which are slidingly connected and symmetrically distributed, the two sliding rods 8 are provided with a beating disc 81 close to one side of the filter screen 61, and the two sliding rods 8 are provided with an inclined block 82 close to one end of the fan 511, the outer wall of the support strip 7 is provided with a spring b 83 close to one side of the inclined block 82, the two ends of the spring b 83 are fixedly connected with the corresponding support strip 7 and inclined block 82, and the outer wall of the linkage rod 71 is provided with a fixedly connected extrusion rod 72, and the end of the extrusion rod 72 abuts against and slidingly connects with the outer wall of the inclined block 82.

[0034] It should be noted that: through the setting of the inclined block 82, when the extrusion rod 72 abuts against the side wall of the inclined block 82, the inclined block 82 can change the direction of the extrusion force of the extrusion rod 72, so that the extrusion rod 72 can smoothly extrude the sliding rod 8, and when the extrusion rod 72 moves away from the inclined block 82, the spring b 83 can drive the sliding rod and the beating disc 81 to reset through the elasticity of the spring b 83, and thus the cyclic beating of the filter screen 61 can be realized through the cyclic rotation of the linkage rod 71, so that the cleaning of the filter screen 61 can be realized, and the influence of the blockage of the filter screen 61 on the dust filtering effect and the suction force of the fan 511 can be reduced.

[0035] In the embodiment of the utility model, please refer to Figures 1 to 6 The support frame 2 is arranged in the frame body 1, the upper feeding component 22 is arranged on one side of the top of the support frame 2, the lower die 21 is arranged in the support frame 2, the upper die 32 is arranged on the bottom of the sliding frame 31 and opposite to the lower die 21, and the outer wall specifications of the lower die 21 and the upper die 32 are smaller than the inner wall specifications of the protective cover 43.

[0036] It should be noted that: through the setting of the upper feeding component 22, powder can be smoothly fed during use, then the hydraulic cylinder can be controlled to drive the upper cap to move downward into the lower die 21 to perform extrusion forming of the product, after the product is shaped, the product can be upwardly topped, then the upper feeding component 22 is controlled to move to outwardly eject the extrusion-formed product from the lower die, so that the work staff can conveniently transfer the finished product to the subsequent firing area.

[0037] The working principle of the powder metallurgy pressing die is as follows:

[0038] When the device is used, the upper feeding component 22 can be controlled to move upward to add powder, after the powder is added, the upper feeding component 22 is reset and the cylinder 3 is controlled to extend;

[0039] The extended air cylinder 3 drives the sliding frame 31 to move downwards, so that the upper die 32 at the bottom can be inserted into the lower die 21 to extrude and shape the powder in the lower die 21, and in this process, the bottom ring 42 outside the upper die 32 can first abut against the outer side of the top lower die 21 of the support frame 2 under the action of the spring a 441, and the outer protective cover 43 can cover and shield the outside of the upper die 32, so that when the upper die 32 extrudes the powder in the lower die 21 into the gap and sprays outwards, the protective cover 43 can shield the powder to avoid random scattering of the powder;

[0040] And in this process, the working fan 511 can suck the sprayed powder into the collection box 51 through the air suction ring 53 on the bottom ring 42, and the gas in the air collection box 51 can be discharged outward through the filter screen 61, so that the powder can be filtered and collected for later recycling;

[0041] And in the process of rotating the fan 511, the linkage rod 71 can be driven to rotate synchronously, and the rotating linkage rod 71 can abut against the side wall of the inclined block 82 through the extrusion rod 72 on the outer wall, and since the side wall of the inclined block 82 is an inclined slope, when the two abut against each other, the inclined block 82 can convert the extrusion force of the extrusion rod 72 into driving force for the sliding rod 8, so that the sliding rod 8 can drive the beating disc 81 to extrude the filter screen 61, and when the extrusion rod 72 moves away from the inclined block 82, the spring b 83 can drive the sliding rod and the beating disc 81 to reset through the elastic force of the spring b 83, and then with the circulation of the linkage rod 71, the filter screen 61 can be beaten in circulation, so that the powder can reduce the influence of the suction force of the fan 511 caused by the blockage of the filter screen 61.

[0042] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0043] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A powder metallurgy press die characterized by, Include: The frame body (1), the inner top of the frame body (1) is provided with a cylinder (3), the end of the cylinder (3) is provided with a sliding frame (31), the sliding frame (31) is provided with a shielding assembly (4); The shielding assembly (4) includes a top ring (41), the top ring (41) is arranged on the sliding frame (31), the bottom of the top ring (41) is provided with two symmetrically distributed telescopic rods (44), the ends of the two telescopic rods (44) are provided with a bottom ring (42) fixedly connected, the bottom ring (42) and the top ring (41) are arranged between the protective cover (43), the outside of the telescopic rod (44) is provided with a spring a (441), and the two ends of the spring a (441) are fixedly connected with the corresponding top ring (41) and bottom ring (42).

2. The powder metallurgy press tooling of claim 1, wherein, The outside of the frame body (1) is provided with a collecting assembly (5), the collecting assembly (5) includes a collecting box (51), the collecting box (51) is arranged on the side wall of the frame body (1), one side of the inside of the collecting box (51) is provided with a communicating fan (511), and the other side of the inside of the collecting box (51) is provided with an air inlet pipe (512).

3. The powder metallurgy press tooling of claim 2, wherein, The end of the air inlet pipe (512) is provided with a communicating adapter pipe (52), the end of the adapter pipe (52) is provided with a communicating air inlet ring (53), the bottom of the air inlet ring (53) is connected with the top of the bottom ring (42), the air inlet ring (53) is located in the protective cover (43), and the adapter pipe (52) is a flexible pipe.

4. The powder metallurgy press tooling of claim 3, wherein, The inside of the collecting box (51) is arranged with a mounting cylinder (6) opposite the input end of the fan (511), the end of the mounting cylinder (6) is provided with a filter screen (61), the inside of the mounting cylinder (6) is arranged with a fixedly connected support strip (7), the center of the side of the support strip (7) close to the fan (511) is provided with a rotatingly connected linkage rod (71), and the end of the linkage rod (71) is connected with the output shaft of the blade of the fan (511).

5. The powder metallurgy press tooling of claim 4, wherein, The inside of the support strip (7) is inserted with two sliding rods (8) which are slidingly connected and symmetrically distributed, the side of the two sliding rods (8) close to the filter screen (61) is provided with a beating disc (81), one end of the two sliding rods (8) close to the fan (511) is provided with an inclined block (82), the side of the outer wall of the support strip (7) close to the inclined block (82) is provided with a spring b (83), and the two ends of the spring b (83) are fixedly connected with the corresponding support strip (7) and inclined block (82).

6. The powder metallurgy press tooling of claim 5, wherein, The outer wall of the linkage rod (71) is provided with a fixedly connected extrusion rod (72), and the end of the extrusion rod (72) abuts against and slidingly connects with the outer wall of the inclined block (82).

7. The powder metallurgy press tooling of claim 1, wherein, The inside of the frame body (1) is arranged with a supporting frame (2), one side of the top of the supporting frame (2) is provided with a feeding component (22), the inside of the supporting frame (2) is provided with a lower die (21), the bottom of the sliding frame (31) is provided with an upper die (32) opposite the lower die (21), and the outer wall specifications of the lower die (21) and the upper die (32) are smaller than the inner wall specifications of the protective cover (43).

Images