MIM product shaping device

Abstract

The utility model relates to an MIM product shaping device, and relates to the technical field of shaping equipment, the shaping device comprises a male die seat and a female die seat, and the male die seat and the female die seat are arranged oppositely; the male die base is provided with a first die core, the female die base is provided with an inner supporting assembly, and the inner supporting assembly is right opposite to the first die core. The inner supporting assembly comprises a plurality of inner supporting blocks, the inner supporting blocks are distributed in the circumferential direction, and inner supporting driving pieces are arranged among the inner supporting blocks and used for driving the inner supporting blocks to be close to or away from one another. Through the arrangement of the inner supporting assembly, the frame of the product can be shaped, so that the yield of the product with the frame can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shaping devices, and particularly relates to a MIM product shaping device. BACKGROUND

[0002] Metal injection molding (MIM) is an advanced manufacturing technology that combines the advantages of plastic injection molding and powder metallurgy. MIM technology can manufacture small, three-dimensional complex-shaped metal parts and achieve mass production. Therefore, the application field of MIM technology is very wide, mainly including consumer electronics, automobile manufacturing, medical devices, power tools and industrial equipment.

[0003] At present, the main principle of MIM technology is to mix metal powder and binder in a certain proportion, then inject the mixed raw material into the corresponding mold through injection molding technology, and then form the green body of the required shape. The green body is sequentially subjected to a series of processing processes such as degreasing, sintering and post-processing, and finally the MIM product is formed. Since the existing MIM product needs to go through the sintering step, the existence of the sintering step will cause the MIM product to deform, and the deformation regularity of the MIM product is difficult to control, which leads to low product qualification rate, resulting in high production cost of batch production of MIM products.

[0004] Based on this problem, after the MIM product is sintered, a shaping device is used to shape the sintered product to ensure that the size accuracy of the product meets the requirements. The existing shaping device mainly includes a convex die and a concave die. The MIM product is placed between the convex die and the concave die, and the convex die and the concave die are closed, which can realize the shaping of the MIM product.

[0005] For the related technology in the above, the existing shaping device only has good correction effect on the planar size of the product, and for the product with a frame, when the frame appears inwardly concave, the shaping device is difficult to insert into the frame, and then it is difficult to shape the frame. Therefore, the existing shaping device is difficult to shape the deformed frame on the product, which makes it difficult to ensure the yield of the product with the frame. CONTENT OF THE INVENTION

[0006] The purpose of the present application is to provide a MIM product shaping device, which aims to shape the product with the frame and improve the yield of the product with the frame.

[0007] The MIM product shaping device provided by the present application adopts the following technical scheme:

[0008] The MIM product shaping device comprises a male die seat and a female die seat which are arranged opposite to each other, the male die seat is provided with a first die core, the female die seat is provided with an inner support assembly which is arranged opposite to the first die core, the inner support assembly comprises a plurality of inner support blocks which are arranged in a circumferential direction, and an inner support driving element is arranged between the plurality of inner support blocks and used for driving the plurality of inner support blocks to move close to or away from each other.

[0009] By adopting the technical scheme, firstly, the male die seat and the female die seat are matched, and when the female die seat and the male die seat are closed, the shaping function of the product can be realized.

[0010] Secondly, the first die core is arranged on the male die seat, and the inner support assembly is arranged on the female die seat, so that when the product to be shaped is installed between the male die seat and the female die seat, the first die core and the inner support assembly are matched to realize the shaping of the outer side plane of the product. In this process, when the male die seat and the female die seat are just closed, the inner support assembly is inserted into the frame of the product through the plurality of inner support blocks, and then the plurality of inner support blocks move outward under the action of the inner support driving element, so that the support blocks abut against the inner side wall of the frame of the product, thereby shaping the inner side of the frame of the product.

[0011] Therefore, the structure of the inner support assembly is arranged, and when the male die seat and the female die seat are closed, the inner support assembly can shape the frame of the product, thereby improving the yield of the product with the frame.

[0012] Optionally, the inner support driving element comprises an inner support column, one end of the inner support column is connected with the female die seat, the other end of the inner support column is arranged towards the male die seat, and the inner support column is located between the plurality of inner support blocks; a first inclined surface is arranged on the side wall of the inner support block, a second inclined surface is arranged on the side wall of the inner support column, and the second inclined surface is in abutment with the corresponding first inclined surface; the length direction of the second inclined surface is obliquely arranged relative to the length direction of the inner support column, and the second inclined surface extends towards the central axis direction of the inner support column along one side of the length direction of the second inclined surface towards the male die seat, and the second inclined surface is in sliding connection with the first inclined surface along the length direction of the second inclined surface; and an elastic reset element is arranged between the inner support block and the female die seat.

[0013] By adopting the technical scheme, due to the matched arrangement of the first inclined surface and the second inclined surface, when the inner support block and the inner support column move relative to each other, the inner support block moves obliquely away from the inner support column or moves obliquely towards the central axis direction of the inner support column, so that the plurality of inner support blocks move close to or away from each other.

[0014] Through the structural arrangement, when the male die seat and the female die seat are closed, the male die seat will first abut against the plurality of inner support blocks, and at this time, the plurality of inner support blocks have a movement tendency towards the female die seat, and then when the male die seat and the female die seat continue to be closed, the plurality of inner support blocks will move away from each other. Therefore, when the product to be shaped is installed between the male die seat and the female die seat, with the closing of the male die seat and the female die seat, the plurality of inner support blocks will automatically insert into the frame of the product, and the inner support blocks will automatically abut against the inner side wall of the frame, thereby achieving the shaping function of the frame of the product. The arrangement of the elastic reset member ensures that the plurality of inner support blocks can be automatically reset when the male die seat and the female die seat are opened.

[0015] Optionally, the second inclined surface is provided with a sliding rail, and the first inclined surface is provided with a sliding groove, the sliding groove and the sliding rail are in plug-in connection, and the sliding rail is in sliding connection with the inner side wall of the sliding groove along the length direction of the sliding rail.

[0016] By adopting the above technical scheme, the sliding connection between the inner support column and the inner support block is achieved by providing the sliding rail on the second inclined surface and the sliding groove on the first inclined surface. The use of the sliding rail and the sliding groove improves the accuracy and stability of the movement of the inner support block and reduces the damage caused by friction

[0017] Optionally, the inner support driving member further comprises an abutting block, a clearance slot is provided in the abutting block, the inner support column and the plurality of inner support blocks are located in the clearance slot, and the inner side wall of the clearance slot is spaced apart from the inner support blocks; a connecting block is arranged on the side wall of the inner support block, the connecting block is located between the abutting block and the elastic reset member along the length direction of the inner support column, the abutting block abuts against the connecting block, and the elastic reset member is connected with the connecting block.

[0018] By adopting the above technical scheme, the clearance slot provides installation space for the inner support column and the inner support block, so that the inner support column and the inner support block can sink into the clearance slot, and the inner support block can move without obstruction, thereby improving the smoothness of the shaping process. At the same time, the abutting design of the abutting block and the connecting block can drive the inner support block when the male die seat abuts against the abutting block and the abutting block abuts against the connecting block during the closing of the male die seat and the female die seat. Therefore, the arrangement of the abutting block can prevent the male die seat from directly contacting the inner support block, thereby optimizing the stress of the inner support block and improving the service life of the inner support block.

[0019] Optionally, the concave die seat comprises a first mounting plate, a first slot is formed through the first mounting plate, the inner support column, the elastic reset member and the plurality of inner support blocks are located in the first slot, the abutting block is inserted into the first slot in a fit manner, and the abutting block is detachably connected with the first mounting plate; a first fixing plate is arranged on the side of the first mounting plate away from the convex die seat, one end of the inner support column is connected with the first fixing plate, and a plurality of first reset springs are arranged between the first mounting plate and the first fixing plate, one end of the first reset spring is connected with the first mounting plate, and the other end is connected with the first fixing plate.

[0020] By adopting the above technical scheme, the installation of the inner support column, the inner support block, the abutting block and the elastic reset member is realized through the arrangement of the first mounting plate and the first fixing plate. Since the abutting block is connected with the first mounting plate, and the first reset spring is arranged between the first mounting plate and the first fixing plate, when the convex die seat and the concave die seat are closed, the convex die seat will first abut against the first mounting plate, at this time, the first mounting plate drives the abutting block to move, which can realize the driving of the inner support block; when the convex die seat and the concave die seat are opened, the first reset spring resets the first mounting plate, and the first mounting plate drives the abutting block to reset. This structural design not only improves the stability and durability of the shaping device, but also improves the production efficiency by reducing the time loss in the closing and opening processes.

[0021] Optionally, two outer extrusion blocks are arranged on the side of the convex die seat facing the concave die seat, and the first die core is located between the two outer extrusion blocks; the convex die seat is provided with an outer extrusion driving member for driving the outer extrusion blocks to move close to or away from the first die core.

[0022] By adopting the above technical scheme, the clamping groove is formed between the two outer extrusion blocks and the first die core through the arrangement of the outer extrusion blocks and the outer extrusion driving member, which enables the shaped product to be installed into the clamping groove, and the outer extrusion driving member is arranged to enable the outer extrusion blocks to exert pressure on the outer side wall of the product during the closing process of the convex die seat and the concave die seat, so as to correct the shape of the product. Through the cooperative arrangement of the two outer extrusion blocks and the plurality of inner support blocks, the inner side wall and the outer side wall of the frame of the product can be shaped when the convex die seat and the concave die seat are closed, which can improve the shaping effect of the product and improve the yield of the product with the frame.

[0023] Optionally, a guide groove is formed on the side of the convex die seat facing the concave die seat, the length direction of the guide groove is arranged along the spacing direction of the two outer extrusion blocks, and the first die core and the two outer extrusion blocks are located in the guide groove, and the outer extrusion blocks are slidably connected with the inner side wall of the guide groove along the length direction of the guide groove.

[0024] By adopting the technical scheme, the guide groove is arranged on the male die seat to provide an accurate sliding path for the outer extrusion block, and the design of the guide groove ensures smooth movement of the outer extrusion block during the clamping and unclamping processes, reduces damage caused by friction or collision, and improves the service life of the outer extrusion block

[0025] Optionally, the outer extrusion driving member comprises an inclined guide column, an inclined guide hole is arranged through the outer extrusion block, the inclined guide column is inserted into the inclined guide hole and is in sliding connection with the inner side wall of the inclined guide hole, one end of the inclined guide column is provided with a straight guide column, and the other end is inclined to extend away from the first die core; the male die seat comprises a second mounting plate, the second mounting plate and the two outer extrusion blocks are arranged on one side of the second mounting plate facing the female die seat, a second fixing plate is arranged on the side of the second mounting plate away from the female die seat, a second return spring is arranged between the second mounting plate and the second fixing plate, one end of the second return spring is connected with the second mounting plate, and the other end is connected with the second fixing plate; the length direction of the straight guide column is arranged along the interval direction of the second mounting plate and the second fixing plate, one end of the straight guide column is connected with the second fixing plate, and the straight guide column is in sliding connection with the second mounting plate along the length direction of the straight guide column.

[0026] By adopting the technical scheme, first, the cooperation of the straight guide column, the inclined guide column and the inclined guide hole enables the outer extrusion block to move towards or away from the first die core when the straight guide column moves along the length direction of the straight guide column, thereby achieving the driving function of the outer extrusion block.

[0027] On this basis, the arrangement of the second mounting plate, the second fixing plate and the second return spring enables the second mounting plate to move towards the second fixing plate and be abutted by the female die seat during the clamping process, at this time, the straight guide column and the second mounting plate slide relative to each other, and at this time, the two outer extrusion blocks move towards each other, thereby abutting the outer wall of the product and shaping the outer wall of the product. The arrangement of the second return spring enables the second mounting plate and the second fixing plate to automatically reset after unclamping. Such a structure arrangement can achieve the driving of the outer extrusion block.

[0028] Optionally, the secondary shaping mechanism comprises a second die core and a shaping insert block, the second die core is arranged on the side of the male die seat facing the female die seat, the shaping insert block is arranged on the side of the female die seat facing the male die seat, and the second die core and the shaping insert block are arranged opposite to each other.

[0029] By adopting the above technical scheme, the setting of the secondary shaping mechanism, through the opposite setting of the second die core and the shaping plug block, when the punch seat and the concave die seat are closed, the shaping plug block is inserted into the frame of the product, and the cooperation of the shaping plug block and the second die core realizes the secondary shaping of the product.

[0030] Optionally, it further comprises a blanking plate, which is located on one side of the concave die seat, and extends downwardly and obliquely away from one side of the concave die seat along the length direction of the blanking plate.

[0031] By adopting the above technical scheme, the setting of the blanking plate provides a convenient blanking mode for the shaped product, and the oblique design of the blanking plate enables the product to be smoothly slid out, reduces the need for manual operation, and improves the production efficiency.

[0032] In summary, the present application has at least one of the following beneficial technical effects:

[0033] 1. The present application can shape the frame of the product through the setting of the inner support assembly, which can improve the yield rate of the product with the frame.

[0034] 2. The present application can shape the inner side wall of the frame of the product and the outer side wall of the frame of the product through the cooperation of the outer extrusion block and the inner support block, which can further improve the yield rate of the product with the frame.

[0035] 3. The present application can further shape the product after shaping the frame of the product through the setting of the secondary shaping mechanism, which can further improve the yield rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of the shaping device of the present application.

[0037] Figure 2 is a schematic diagram of the cross-sectional structure of the shaping device of the present application.

[0038] Figure 3 is a schematic diagram of the overall structure of the punch seat of the present application.

[0039] Figure 4 is a schematic diagram of the overall structure of the outer extrusion shaping mechanism of the present application.

[0040] Figure 5 is a schematic diagram of the cross-sectional structure of the punch seat of the present application.

[0041] Figure 6 is a schematic diagram of the cross-sectional structure of another position of the punch seat of the present application.

[0042] Figure 7 is a schematic diagram of the overall structure of the concave die seat of the present application.

[0043] Figure 8 is the schematic diagram of the overall structure of the inner support shaping mechanism in the application.

[0044] Figure 9 is the schematic diagram of the sectional structure of the concave die seat in the application.

[0045] Figure 10 is the schematic diagram of the sectional structure of the concave die seat in the application. Figure 8 is the schematic diagram of the sectional structure of the concave die seat in the application.

[0046] In the figure, 1 is the top plate; 2 is the convex die seat; 21 is the guide groove; 22 is the second fixing plate; 23 is the second mounting plate; 231 is the straight guide hole; 24 is the second guide assembly; 241 is the guide column; 242 is the guide hole; 25 is the second reset spring; 3 is the concave die seat; 31 is the first groove; 32 is the first mounting plate; 33 is the first fixing plate; 34 is the first guide assembly; 35 is the first reset spring; 4 is the bottom plate; 5 is the outer extrusion shaping mechanism; 51 is the first die core; 52 is the outer extrusion assembly; 521 is the outer extrusion block; 5211 is the inclined guide hole; 522 is the clamping groove; 523 is the outer extrusion driving member; 5231 is the straight guide column; 5232 is the inclined guide column; 6 is the inner support shaping mechanism; 61 is the inner support assembly; 611 is the inner support block; 6111 is the limiting hole; 6112 is the connecting block; 612 is the inner support driving member; 6121 is the inner support column; 6122 is the limiting column; 62 is the inclined guide assembly; 621 is the first inclined surface; 622 is the second inclined surface; 623 is the sliding rail; 624 is the sliding groove; 63 is the abutting block; 631 is the accommodation groove; 64 is the elastic reset member; 641 is the connecting ring; 642 is the second spring; 7 is the secondary shaping mechanism; 71 is the second die core; 72 is the shaping plug; 8 is the blanking plate. DETAILED DESCRIPTION

[0047] The following will be described in detail in combination with the accompanying drawings. Figure 1 - the accompanying drawings Figure 10 The application will be further described in detail.

[0048] A MIM product shaping device, referring to Figure 1 and Figure 2 , comprises a top plate 1, a convex die seat 2, a concave die seat 3 and a bottom plate 4, which are sequentially arranged along the vertical direction, and the top plate 1 is connected with the convex die seat 2, the concave die seat 3 is connected with the bottom plate 4, and the convex die seat 2 and the concave die seat 3 are oppositely arranged along the vertical direction. Such a structure arrangement can install the product to be shaped between the convex die seat 2 and the concave die seat 3, and then the convex die seat 2 and the concave die seat 3 are closed, which can realize the shaping of the product.

[0049] Referring to Figure 2 and Figure 3The outer extrusion shaping mechanism 5 is arranged on the punch seat 2, and the outer extrusion shaping mechanism 5 comprises a first die core 51 and two outer extrusion assemblies 52. The first die core 51 and the outer extrusion assemblies 52 are arranged on the lower side of the punch seat 2, and the first die core 51 is located between the two outer extrusion assemblies 52.

[0050] In the embodiment, four outer extrusion shaping mechanisms 5 are arranged on the punch seat 2.

[0051] Referring to Figure 3 and Figure 4 The outer extrusion assembly 52 comprises an outer extrusion block 521, and the two outer extrusion blocks 521 are arranged in the width direction of the punch seat 2 and are located between the two outer extrusion blocks 521. The first die core 51 and the two outer extrusion blocks 521 form a clamping groove 522. The two outer extrusion blocks 521 are slidably connected to the punch seat 2 in the width direction of the punch seat 2, and the outer extrusion driving members 523 are arranged on the two outer extrusion blocks 521.

[0052] When the product to be shaped is located in the clamping groove 522, the two outer extrusion blocks 521 are driven by the two outer extrusion driving members 523 to move towards each other, thereby clamping and extruding the side wall of the product to be shaped, and the shaping of the outer side wall of the product is realized.

[0053] Referring to Figure 4 and Figure 5 A plurality of guide grooves 21 are arranged on the lower side of the punch seat 2, and the length direction of the guide grooves 21 is arranged in the width direction of the punch seat 2. The guide grooves 21 are arranged one by one corresponding to the first die core 51, the first die core 51 is located in the corresponding guide groove 21, and the corresponding two outer extrusion blocks 521 are located in the corresponding guide groove 21. The outer extrusion block 521 is slidably connected to the inner side wall of the corresponding guide groove 21 in the width direction of the punch seat 2. Therefore, the arrangement of the guide grooves 21 can guide the movement of the outer extrusion block 521 and improve the stability of the movement of the outer extrusion block 521.

[0054] Referring to Figure 4 and Figure 5 The outer extrusion driving member 523 comprises a straight guide column 5231 and an inclined guide column 5232. The length direction of the straight guide column 5231 is arranged in the vertical direction, and the straight guide column 5231 is slidably connected to the punch seat 2 in the length direction of the straight guide column 5231. The lower end of the straight guide column 5231 is connected to the corresponding inclined guide column 5232. The inclined guide column 5232 is arranged obliquely, specifically, the end of the inclined guide column 5232 away from the straight guide column 5231 is arranged to extend away from the corresponding first die core 51. The side of the outer extrusion block 521 facing the punch seat 2 is provided with an inclined guide hole 5211, the inclined guide column 5232 is inserted into the corresponding inclined guide hole 5211, and the inclined guide column 5232 is slidably connected to the inner side wall of the corresponding inclined guide hole 5211.

[0055] The outer extrusion driving member 523 is provided with a straight guide column 5231 and an inclined guide column 5232. When the straight guide column 5231 moves on the punch seat 2, the straight guide column 5231 can drive the inclined guide column 5232 to move in the vertical direction. Then, under the cooperation of the inclined guide column 5232 and the inclined guide hole 5211, the outer extrusion block 521 can move in the width direction of the punch seat 2. Then, under the cooperation of the two outer extrusion driving members 523, the distance between the two outer extrusion blocks 521 can be adjusted, the width of the clamping groove 522 is adjusted, on the one hand, the clamping of the product to be shaped is realized; on the other hand, the product is extruded from the outside of the product to be shaped, and the shaping of the outside of the product is realized.

[0056] With reference to Figure 5 and Figure 6 , the punch seat 2 comprises a second fixed plate 22 and a second mounting plate 23. The top plate 1, the second fixed plate 22 and the second mounting plate 23 are sequentially arranged from top to bottom, and a plurality of first die cores 51 and a plurality of outer extrusion assemblies 52 are arranged on the lower side of the second mounting plate 23.

[0057] In this embodiment, with reference to Figure 6 , a plurality of second guide assemblies 24 are further arranged between the second fixed plate 22 and the second mounting plate 23. The second guide assembly 24 comprises a guide column 241, and a guide hole 242 is formed through the second mounting plate 23. The guide column 241 is inserted and matched with the guide hole 242, and the guide column 241 is slidably connected with the inner side wall of the guide hole 242 along the axial direction of the guide column 241. One end of the guide column 241 is connected with the second fixed plate 22. The cooperation of the plurality of second guide assemblies 24 can guide the relative movement between the second fixed plate 22 and the second mounting plate 23.

[0058] In this embodiment, with reference to Figure 6 , a plurality of second return springs 25 are further arranged between the second fixed plate 22 and the second mounting plate 23. The plurality of second return springs 25 are arranged in the vertical direction. One end of the second return spring 25 is connected with the second fixed plate 22, and the other end is connected with the second mounting plate 23. The arrangement of the second return spring 25 ensures that the second fixed plate 22 and the second mounting plate 23 can automatically return to the separated state after the product shaping, which is convenient for the next product shaping.

[0059] When the punch seat 2 and the concave die seat 3 are closed, the second mounting plate 23 and the second fixed plate 22 are close to each other due to the arrangement of the second guide assembly 24. On the contrary, when the punch seat 2 and the concave die seat 3 are separated, the second mounting plate 23 and the second fixed plate 22 are separated due to the arrangement of the second return spring 25.

[0060] With reference to Figure 4 and Figure 5A plurality of straight guide holes 231 are provided on the second mounting plate 23, and a straight guide column 5231 is provided corresponding to each of the straight guide holes 231. The straight guide column 5231 is inserted into the corresponding straight guide hole 231 and is in sliding connection with the inner side wall of the straight guide hole 231 in the vertical direction. The lower end of the straight guide column 5231 is connected to the second fixed plate 22.

[0061] When the male die seat 2 and the female die seat 3 are closed, the second fixed plate 22 and the second mounting plate 23 move towards each other, at which time the straight guide column 5231 moves downward, and the outer extrusion block 521 moves towards the corresponding first die core 51. Conversely, when the male die seat 2 and the female die seat 3 are opened, the second fixed plate 22 and the second mounting plate 23 move away from each other, at which time the straight guide column 5231 moves upward, and the outer extrusion block 521 moves away from the corresponding first die core 51. Therefore, the arrangement of the male die seat 2 can drive the outer extrusion assembly 52 to achieve extrusion and shaping of the outer side wall of the product.

[0062] Referring to Figure 2 and Figure 7 , the female die seat 3 is provided with an inner support shaping mechanism 6. The inner support shaping mechanism 6 includes a plurality of inner support assemblies 61, which are arranged in sequence along the length direction of the female die seat 3. The inner support assemblies 61 are arranged corresponding to the first die cores 51, and the inner support assemblies 61 are arranged in vertical opposition to the corresponding first die cores 51.

[0063] Referring to Figure 7 and Figure 8 , the inner support assembly 61 includes a plurality of inner support blocks 611, which are arranged in a circle. The plurality of inner support blocks 611 are in sliding connection with the female die seat 3, and an inner support driving member 612 is arranged between the plurality of inner support blocks 611.

[0064] In this embodiment, four inner support blocks 611 are arranged around the upper end of the inner support column 6121.

[0065] Referring to Figure 8 and Figure 9 , the inner support driving member 612 includes an inner support column 6121, which is arranged in the vertical direction. The inner support column 6121 is located between the plurality of inner support blocks 611, and the plurality of inner support blocks 611 are located at the upper end of the inner support column 6121.

[0066] Referring to Figure 8 and Figure 10The inclined guide assembly 62 is arranged between the inner support block 611 and the inner support column 6121. The inclined guide assembly 62 comprises a second inclined surface 622, which is arranged on the side wall of the inner support column 6121 facing the corresponding inner support block 611. The length direction of the second inclined surface 622 is arranged in an inclined manner in the vertical direction, and the upper side of the second inclined surface 622 extends in a direction inclined towards the center line of the inner support column 6121. The inclined guide assembly 62 further comprises a first inclined surface 621, which is arranged on one side of the inner support block 611 facing the inner support column 6121. The first inclined surface 621 is in sliding connection with the second inclined surface 622 along the length direction of the second inclined surface 622.

[0067] Under the action of the inclined guide assembly 62, when the inner support block 611 and the inner support column 6121 move relative to each other, the plurality of inner support blocks 611 will move closer to or farther away from each other.

[0068] Referring to Figure 8 and Figure 10 , the second inclined surface 622 is provided with a sliding rail 623, and the length direction of the sliding rail 623 is arranged along the length direction of the second inclined surface 622. The first inclined surface 621 is provided with a sliding groove 624, and the sliding groove 624 penetrates the second inclined surface 622 along the length direction of the second inclined surface 622. The sliding groove 624 is in plug-in connection with the sliding rail 623, and the sliding rail 623 is in sliding connection with the inner side wall of the sliding groove 624 along the length direction of the sliding rail 623.

[0069] Through the cooperation of the sliding rail 623 and the sliding groove 624, the stability of the sliding connection between the inner support column 6121 and the inner support block 611 can be improved.

[0070] Referring to Figure 8 and Figure 9 , a limiting column 6122 is arranged between the two inner support blocks 611, and the limiting column 6122 is arranged in the horizontal direction. The side wall of the inner support column 6121 is provided with a plug-in hole, and the limiting column 6122 is in plug-in connection with the plug-in hole. The inner support block 611 is provided with a limiting hole 6111, and the limiting column 6122 is in plug-in connection with the inner support block 611. The limiting column 6122 is in sliding connection with the inner side wall of the limiting hole 6111 in the vertical direction, and the limiting column 6122 is in sliding connection with the inner side wall of the limiting hole 6111 along the length direction of the limiting column 6122.

[0071] The cooperation of the limiting column 6122 and the limiting hole 6111 can limit the relative movement between the inner support block 611 and the inner support column 6121, and prevent the inner support block 611 and the inner support column 6121 from being separated by sliding.

[0072] Referring to Figure 8 and Figure 9The convex die seat 2 is provided with a resisting block 63, the resisting block 63 is provided with a let-go slot 631, the inner supporting column 6121 is inserted in the let-go slot 631, and the plurality of inner supporting blocks 611 are located in the let-go slot 631, and the inner side wall of the let-go slot 631 is parallel to and spaced apart from the corresponding inner supporting block 611. The side, away from the inner supporting column 6121, of the inner supporting block 611 is provided with a connecting block 6112, the connecting block 6112 is located at the lower side of the inner supporting block 611, and the connecting block 6112 is located at the lower side of the resisting block 63, and the connecting block 6112 and the resisting block 63 abut in the vertical direction.

[0073] Referring to Figure 8 and Figure 9 The convex die seat 2 is further provided with an elastic reset member 64, the elastic reset member 64 comprises a connecting ring 641, the connecting ring 641 is sleeved on the outer side of the inner supporting column 6121, and the inner side wall of the connecting ring 641 is spaced apart from the outer side wall of the inner supporting column 6121. The connecting ring 641 is located at the lower side of the connecting block 6112, and the lower side of the plurality of connecting blocks 6112 abuts against the connecting ring 641. The elastic reset member 64 further comprises a plurality of second springs 642, the axial direction of the second spring 642 is arranged in the vertical direction, the upper end of the second spring 642 is connected with the connecting ring 641, and the lower end is connected with the convex die seat 2.

[0074] When the convex die seat 2 and the concave die seat 3 are closed, first, the convex die seat 2 and the concave die seat 3 are initially closed, and the upper end of the four inner supporting blocks 611 is inserted into the frame of the product; secondly, the convex die seat 2 and the concave die seat 3 continue to be closed, the convex die seat 2 abuts against the resisting block 63, at this time, the resisting block 63 abuts against the plurality of inner supporting blocks 611 and moves vertically downward, at this time, under the action of the inclined guide assembly 62, the four inner supporting blocks 611 can move in the direction away from the inner supporting column 6121, so that the four inner supporting blocks 611 can support and shape the inner wall of the product frame. Conversely, when the convex die seat 2 and the concave die seat 3 are opened, under the action of the plurality of second springs 642, the connecting ring 641 abuts against the plurality of inner supporting blocks 611 to reset, and the resisting block 63 is reset.

[0075] Referring to Figure 8 and Figure 9 The concave die seat 3 is provided with a first slot 31, the inner supporting column 6121 is located in the first slot 31, and the lower end of the inner supporting column 6121 is connected with the bottom plate 4; the plurality of inner supporting blocks 611 are located in the first slot 31; the resisting block 63 is located in the first slot 31 and is inserted and matched with the first slot 31; the connecting ring 641 and the plurality of second springs 642 are located in the first slot 31, the upper end of the second spring 642 is connected with the connecting ring 641, and the lower end is connected with the bottom plate 4. The first slot 31 can provide installation space for the inner supporting and shaping mechanism 6.

[0076] Referring to Figure 9The concave die seat 3 comprises a first mounting plate 32 and a first fixed plate 33, the first mounting plate 32, the first fixed plate 33 and the bottom plate 4 are sequentially arranged from top to bottom, and the first fixed plate 33 is connected with the bottom plate 4. The first fixed plate 33 is slidably connected with the first mounting plate 32 in the vertical direction, and a first guide assembly 34 is arranged between the first fixed plate 33 and the first mounting plate 32. The first guide assembly 34 and the second guide assembly 24 are of the same structure. A plurality of first return springs 35 are arranged between the first fixed plate 33 and the first mounting plate 32, the lower end of the first return spring 35 is connected with the first fixed plate 33, and the upper end is connected with the first mounting plate 32. The first slot 31 penetrates through the first mounting plate 32 and the first fixed plate 33, and the abutting block 63 is connected with the first mounting plate 32 through bolts.

[0077] With reference to Figure 8 and Figure 9 When the male die seat 2 and the concave die seat 3 are closed, the male die seat 2 first abuts against the first mounting plate 32, at this time, the plurality of inner support blocks 611 are inserted into the frame of the product; the male die seat 2 and the concave die seat 3 continue to be closed, the concave die seat 3 abuts against the first mounting plate 32 and moves towards the first fixed plate 33, at this time, the abutting block 63 abuts against the plurality of inner support blocks 611 and moves downward, then the four inner support blocks 611 can move synchronously in the direction away from the inner support column 6121, at this time, the four inner support blocks 611 can support and shape the inner wall of the frame of the product. Therefore, the structure of the concave die seat 3 can drive the inner support blocks 611.

[0078] With reference to Figure 3 and Figure 7 A secondary shaping mechanism 7 is further arranged between the male die seat 2 and the concave die seat 3. The secondary shaping mechanism 7 comprises a plurality of second die pins 71 and a plurality of shaping insertion blocks 72. The plurality of second die pins 71 are arranged on the lower side of the male die seat 2, and the second die pins 71 are arranged one by one corresponding to the first die pins 51 and are arranged in the width direction of the male die seat 2. The plurality of shaping insertion blocks 72 are arranged on the lower side of the concave die seat 3, and the shaping insertion blocks 72 are arranged one by one corresponding to the inner support assemblies 61 and are arranged in the width direction of the concave die seat 3. The second die pins 71 and the shaping insertion blocks 72 are arranged one by one and are arranged in the vertical direction.

[0079] The product after frame shaping can be installed through the second die pin 71, at this time, the male die seat 2 and the concave die seat 3 are closed, the shaping insertion block 72 cooperates with the second die pin 71 to realize the secondary shaping of the product.

[0080] With reference to Figure 1The shaping device further comprises a discharging plate 8, one end of the discharging plate 8 is located at one side of the width direction of the recessed die seat 3, and the other end of the discharging plate 8 is arranged in an inclined downward extension manner. When the product shaping is completed, the shaped product can be disassembled and placed in the discharging plate 8, so as to realize the product discharging.

[0081] The implementation principle of the embodiment of the present application is as follows: firstly, the first shaping of the product is realized through the outer extrusion shaping mechanism 5 and the inner support shaping mechanism 6, the product is placed on the recessed die seat 3, when the convex die seat 2 and the recessed die seat 3 are closed, the two outer extrusion blocks 521 move towards each other to abut against the outer side wall of the product, and the four inner support blocks 611 move away from each other to abut against the inner side wall of the product. This can realize the shaping of the upper frame of the product.

[0082] Secondly, the second shaping of the product is realized through the secondary shaping mechanism 7, the product is placed on the recessed die seat 3, at this time, the frame of the product is sleeved on the corresponding shaping plug 72, when the convex die seat 2 and the recessed die seat 3 are closed, the second die core 71 cooperates with the shaping plug 72 to realize the second shaping of the product.

[0083] Finally, after the second shaping is completed, the product is carried to the discharging plate 8, and the product is discharged.

[0084] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A MIM product sizing apparatus, characterized by, Include: Male die seat (2) and female die seat (3), the male die seat (2) and the female die seat (3) are opposite to each other; The first die (51) is arranged on the male die seat (2), and the inner support assembly (61) is arranged on the female die seat (3), and the inner support assembly (61) is opposite to the first die (51); The inner support assembly (61) includes a plurality of inner support blocks (611), a plurality of the inner support blocks (611) are circumferentially arranged, and an inner support driving member (612) is arranged between a plurality of the inner support blocks (611), and the inner support driving member (612) is used for driving a plurality of the inner support blocks (611) to move closer to each other or move away from each other.

2. The MIM product sizing device of claim 1, wherein, The inner support driving member (612) includes an inner support column (6121), one end of the inner support column (6121) is connected with the female die seat (3), the other end is arranged towards the male die seat (2), and the inner support column (6121) is located between a plurality of the inner support blocks (611); The side wall of the inner support block (611) is provided with a first inclined surface (621), the side wall of the inner support column (6121) is provided with a second inclined surface (622), and the second inclined surface (622) is attached to the corresponding first inclined surface (621); The length direction of the second inclined surface (622) is obliquely arranged with the length direction of the inner support column (6121), and the second inclined surface (622) extends along the length direction of itself towards the side of the male die seat (2) and obliquely towards the central axis direction of the inner support column (6121), and the second inclined surface (622) is slidably connected with the first inclined surface (621) along the length direction of itself; The elastic reset member (64) is arranged between the inner support block (611) and the female die seat (3).

3. A MIM product sizing device according to claim 2, wherein, The second inclined surface (622) is provided with a sliding rail (623), and the first inclined surface (621) is provided with a sliding groove (624), the sliding groove (624) and the sliding rail (623) are inserted and matched, and the sliding rail (623) is slidably connected with the inner side wall of the sliding groove (624) along the length direction of itself.

4. The MIM product sizing device of claim 2, wherein, The inner support driving member (612) further includes a contact block (63), the contact block (63) is provided with a clearance slot (631) penetrating through, the inner support column (6121) and a plurality of the inner support blocks (611) are located in the clearance slot (631), and the inner side wall of the clearance slot (631) is spaced apart from the inner support block (611); The side wall of the inner support block (611) is provided with a connecting block (6112), the connecting block (6112) is located between the contact block (63) and the elastic reset member (64) along the length direction of the inner support column (6121), the contact block (63) and the connecting block (6112) are in contact, and the elastic reset member (64) is connected with the connecting block (6112).

5. A MIM product sizing device according to claim 4, wherein, The concave die seat (3) comprises a first mounting plate (32), a first slot (31) is formed through the first mounting plate (32), the inner support column (6121), the elastic reset member (64) and a plurality of inner support blocks (611) are located in the first slot (31), the abutting block (63) is inserted and matched with the first slot (31), and the abutting block (63) is detachably connected with the first mounting plate (32); A first fixing plate (33) is arranged on the side, away from the convex die seat (2), of the first mounting plate (32), one end of the inner support column (6121) is connected with the first fixing plate (33), and a plurality of first reset springs (35) are arranged between the first mounting plate (32) and the first fixing plate (33), one end of the first reset spring (35) is connected with the first mounting plate (32), and the other end is connected with the first fixing plate (33).

6. The MIM product sizing device of claim 1, wherein, Two outer extrusion blocks (521) are arranged on the side, facing the concave die seat (3), of the convex die seat (2), and the first die core (51) is located between the two outer extrusion blocks (521); The convex die seat (2) is provided with an outer extrusion driving member (523) for driving the outer extrusion blocks (521) to move close to or away from the first die core (51).

7. A MIM product sizing device according to claim 6, wherein, A guide groove (21) is formed on the side, facing the concave die seat (3), of the convex die seat (2), the length direction of the guide groove (21) is arranged along the spacing direction of the two outer extrusion blocks (521), and the first die core (51) and the two outer extrusion blocks (521) are located in the guide groove (21), and the outer extrusion blocks (521) are slidably connected with the inner side wall of the guide groove (21) along the length direction of the guide groove (21).

8. The MIM product sizing device of claim 6, wherein, The outer extrusion driving member (523) comprises an inclined guide column (5232), an inclined guide hole (5211) is formed through the outer extrusion block (521), the inclined guide column (5232) is inserted and matched with the inclined guide hole (5211), and the inclined guide column (5232) is slidably connected with the inner side wall of the inclined guide hole (5211), one end of the inclined guide column (5232), facing the convex die seat (2), is provided with a straight guide column (5231), and the other end extends in a direction away from the first die core (51); The convex die seat (2) comprises a second mounting plate (23), the second mounting plate (23) and the two outer extrusion blocks (521) are arranged on the side, facing the concave die seat (3), of the second mounting plate (23), a second fixing plate (22) is arranged on the side, away from the concave die seat (3), of the second mounting plate (23), a second reset spring (25) is arranged between the second fixing plate (22) and the second mounting plate (23), one end of the second reset spring (25) is connected with the second mounting plate (23), and the other end is connected with the second fixing plate (22); The length direction of the straight guide column (5231) is arranged along the interval direction of the second mounting plate (23) and the second fixed plate (22), one end of the straight guide column (5231) is connected with the second fixed plate (22), and the straight guide column (5231) is slidably connected with the second mounting plate (23) along the length direction of the straight guide column (5231).

9. The MIM product sizing device of claim 1, wherein, Further comprising a secondary shaping mechanism (7), the secondary shaping mechanism (7) comprises a second die pin (71) and a shaping plug (72), the second die pin (71) is arranged on the side of the male die seat (2) facing the female die seat (3), the shaping plug (72) is arranged on the side of the female die seat (3) facing the male die seat (2), and the second die pin (71) is arranged opposite to the shaping plug (72).

10. The MIM product sizing device of claim 1, wherein, Further comprising a blanking plate (8), the blanking plate (8) is located on one side of the female die seat (3), and the blanking plate (8) extends downwardly and obliquely away from the side of the female die seat (3) along the length direction of the blanking plate (8).

Images