A MIM product shaping device

Abstract

The present application relates to a MIM product shaping device, and relates to the technical field of shaping equipment. The shaping device includes a punch seat and a die seat, and the punch seat and the die seat are arranged opposite to each other; a first mold core is arranged on the punch seat, and an inner support assembly is arranged on the die seat, and the inner support assembly is arranged opposite to the first mold core; the inner support assembly includes a plurality of inner support blocks, and the plurality of inner support blocks are arranged in a circle, and an inner support driving member is arranged between the plurality of inner support blocks, and the inner support driving member is used to drive the plurality of inner support blocks to move closer to or away from each other. The present application can shape the border of the product by setting the inner support assembly, which can improve the yield rate of products with borders.

Description

Technical Field

[0001] The present application relates to the technical field of shaping equipment, and in particular to a MIM product shaping device. Background Art

[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 metal parts and can achieve mass production. Therefore, the application fields of MIM technology are very wide, mainly including consumer electronics, automobile manufacturing, medical equipment, power tools and industrial equipment.

[0003] At present, the main principle of MIM technology is: metal powder and binder are mixed in a certain proportion, and then the mixed raw materials are injected into the corresponding mold through injection molding technology to form a green body of the desired shape, and then the green body is successively processed through a series of processes such as degreasing, sintering, and post-processing to finally realize the molding of MIM products. Since existing MIM products need to go through a sintering step, the existence of the sintering step will cause the MIM products to deform, and the deformation regularity of the MIM products is difficult to control, which leads to a low product qualification rate, which results in a high production cost for mass production of MIM products.

[0004] Based on this problem, after the MIM product is sintered, a shaping device will be used to shape the sintered product to ensure that the product's dimensional accuracy meets the requirements. The existing shaping device mainly includes a punch and a die. The MIM product is placed between the punch and the die, and the punch and the die are molded together, which can achieve the shaping of the MIM product.

[0005] With respect to the above-mentioned related technologies, the existing shaping device only has a good correction effect on the plane size of the product. For products with borders, when the border appears inwardly concave, it is difficult to insert the shaping device into the border, and thus it is difficult to shape the border. Therefore, it is difficult for the existing shaping device to shape the deformed border on the product, which makes it difficult to ensure the yield rate of products with borders. Summary of the invention

[0006] The purpose of this application is to provide a MIM product shaping device, the purpose of which is to shape products with borders and improve the yield rate of products with borders.

[0007] The present application provides a MIM product shaping device that adopts the following technical solution: A MIM product shaping device comprises a punch seat and a die seat, the punch seat and the die seat are arranged opposite to each other; the punch seat is provided with a first mold core, the die seat is provided with an inner support assembly, the inner support assembly is arranged opposite to the first mold core; the inner support assembly comprises a plurality of inner support blocks, the plurality of the inner support blocks are arranged in a circle, an inner support driving member is provided between the plurality of the inner support blocks, and the inner support driving member is used to drive the plurality of the inner support blocks to move closer to or away from each other.

[0008] By adopting the above technical solution, firstly, the cooperation between the punch seat and the die seat can realize the shaping function of the product when the die seat and the punch seat are closed.

[0009] Secondly, a first mold core is arranged on the male mold seat, and an inner support assembly is arranged on the female mold seat, so that when the product to be shaped is installed between the male mold seat and the female mold seat, the first mold core cooperates with the inner support assembly to achieve the shaping of the outer plane of the product. In this process, when the male mold seat and the female mold seat are just molded, the inner support assembly is inserted into the frame of the product through a number of inner support blocks, and then under the action of the inner support driving member, the number of inner support blocks move outward, so that the support blocks will resist the inner side wall of the frame of the product, so that the inner side of the frame of the product can be shaped.

[0010] Therefore, due to the structural setting of the inner support component, when the punch seat and the die seat are closed, the inner support component can shape the border of the product, which can improve the yield of the product with a border.

[0011] Optionally, the internal support driving member includes an internal support column, one end of the internal support column is connected to the die seat, and the other end is arranged toward the punch seat, and the internal support column is located between a plurality of the internal support blocks; a first inclined surface is arranged on the side wall of the internal support block, and a second inclined surface is arranged on the side wall of the internal support column, and the second inclined surface is fitted with the corresponding first inclined surface; the length direction of the second inclined surface is inclined to the length direction of the inner support column, and the second inclined surface is inclined along its own length direction toward one side of the punch seat and extends toward the central axis direction of the inner support column, and the second inclined surface is slidably connected to the first inclined surface along its own length direction; an elastic reset member is arranged between the inner support block and the die seat.

[0012] By adopting the above technical solution, due to the matching setting of the first inclined surface and the second inclined surface, when the inner support block and the inner support column undergo relative movement, the inner support block will tilt and move in the direction away from the inner support column, or tilt and move in the direction close to the central axis of the inner support column, which makes the inner support blocks move towards or away from each other.

[0013] With such a structural setting, when the punch seat and the die seat are molded together, the punch seat will first contact a number of inner support blocks, and at this time the inner support blocks have a tendency to move toward the die seat, and then when the punch seat and the die seat continue to be molded together, the inner support blocks will move away from each other. Therefore, when the product to be shaped is installed between the punch seat and the die seat, as the punch seat and the die seat are molded together, the inner support blocks will automatically be inserted into the frame of the product, and the inner support blocks will automatically contact the inner side wall of the frame, realizing the shaping function of the product frame. The setting of the elastic reset member ensures that the inner support blocks can be automatically reset when the punch seat and the die seat are separated.

[0014] Optionally, a slide rail is provided on the second inclined surface, a slide groove is provided on the first inclined surface, the slide groove is plug-fitted with the slide rail, and the slide rail is slidably connected to the inner wall of the slide groove along its own length direction.

[0015] By adopting the above technical solution, by setting the slide rail on the second inclined surface and opening the slide groove on the first inclined surface, the sliding connection between the inner support column and the inner support block is realized. The coordinated use of the slide rail and the slide groove improves the accuracy and stability of the movement of the inner support block and reduces the damage caused by friction. Optionally, the inner support driving member also includes a resistance block, the resistance block is provided with a clearance groove, the inner support column and several inner support blocks are located in the clearance groove, and the inner side wall of the clearance groove is spaced apart from the inner support block; the side wall of the inner support block is provided with a connecting block, the connecting block is located between the resistance block and the elastic return member along the length direction of the inner support column, the resistance block is in friction with the connecting block, and the elastic return member is connected to the connecting block.

[0016] By adopting the above technical solution, the setting of the clearance groove 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 groove, so that the inner support block can move without hindrance, thereby improving the smoothness of the shaping process. At the same time, the design of the interference block and the connecting block is such that when the punch seat and the die seat are closed, the punch seat will interfere with the interference block, and then the interference block will interfere with the connecting block, which can realize the driving of the inner support block. Therefore, the setting of the interference block can prevent the punch seat from directly contacting the inner support block, thereby optimizing the force of the inner support block and increasing the service life of the inner support block.

[0017] Optionally, the die seat includes a first mounting plate, which is provided with a first groove, the inner support column, the elastic return member and a plurality of inner support blocks are all located in the first groove, the interference block is plugged into the first groove, and the interference block is detachably connected to the first mounting plate; a first fixing plate is spaced apart on the side of the first mounting plate away from the punch seat, one end of the inner support column is connected to the first fixing plate, a plurality of first return springs are arranged between the first mounting plate and the first fixing plate, one end of the first return spring is connected to the first mounting plate, and the other end is connected to the first fixing plate.

[0018] By adopting the above technical solution, the die seat realizes the installation of the inner support column, the inner support block, the resistance block and the elastic reset member through the arrangement of the first mounting plate and the first fixed plate. Since the resistance block is connected to the first mounting plate and a first reset spring is arranged between the first mounting plate and the first fixed plate, when the punch seat and the die seat are closed, the punch seat will first contact the first mounting plate, at which time the first mounting plate drives the resistance block to move, which can realize the driving of the inner support block; when the punch seat and the die seat are separated, the first reset spring realizes the reset of the first mounting plate, and the first mounting plate drives the reset of the resistance block. 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 parting processes.

[0019] Optionally, two external extrusion blocks are arranged on the side of the punch seat facing the die seat, and the first mold core is located between the two external extrusion blocks; and an external extrusion driving component for driving the external extrusion block to move closer to or away from the first mold core is arranged on the punch seat.

[0020] By adopting the above technical solution, through the arrangement of the external extrusion block and the external extrusion drive member, a clamping groove is formed between the two external extrusion blocks and the first mold core, so that the shaped product can be installed in the clamping groove, and the arrangement of the external extrusion drive member, during the process of the male mold seat and the female mold seat closing the mold, the external extrusion block can apply pressure to the outer side wall of the product, thereby correcting the shape of the product. Through the coordinated arrangement of the two external extrusion blocks and a plurality of internal support blocks, when the male mold seat and the female mold seat close the mold, the inner side wall and the outer side wall of the frame of the product can be shaped, which can improve the shaping effect of the product and improve the yield rate of the product with a frame.

[0021] Optionally, a guide groove is provided on one side of the punch seat toward the die seat, and the length direction of the guide groove is arranged along the spacing direction of the two external extrusion blocks, and the first mold core and the two external extrusion blocks are located in the guide groove, and the external extrusion blocks are slidably connected to the inner side wall of the guide groove along the length direction of the guide groove.

[0022] By adopting the above technical solution, a guide groove is provided on the punch seat to provide a precise sliding path for the external extrusion block. The design of the guide groove ensures the smooth movement of the external extrusion block during the mold closing and mold separation process, reduces the damage caused by friction or collision, and increases the service life of the external extrusion block. Optionally, the external extrusion driving member includes an inclined guide column, an inclined guide hole is penetrated through the external extrusion block, the inclined guide column is plugged into and matched with the inclined guide hole, and the inclined guide column is slidably connected to the inner side wall of the inclined guide hole, and a straight guide column is provided at one end of the inclined guide column facing the punch seat, and the other end is inclined and extends in a direction away from the first mold core; the punch seat includes a second mounting plate, the second mounting plate and the two external extrusion blocks are all arranged on the side of the second mounting plate facing the die seat, and a second fixed plate is spaced apart from the side of the second mounting plate away from the die seat, a second return spring is arranged between the second fixed plate and the second mounting plate, one end of the second return spring is connected to the second mounting plate, and the other end is connected to the second fixed plate; the length direction of the straight guide column is arranged along the spacing direction between the second mounting plate and the second fixed plate, one end of the straight guide column is connected to the second fixed plate, and the straight guide column is slidably connected to the second mounting plate along its own length direction.

[0023] By adopting the above technical solution, firstly, the straight guide column, the inclined guide column and the inclined guide hole are used in combination, so that when the straight guide column moves along its own length direction, the inclined guide column and the inclined guide hole cooperate, so that the external extrusion block will move in the direction close to the first mold core or away from the first mold core, thereby realizing the driving function of the external extrusion block.

[0024] On this basis, the second mounting plate, the second fixed plate and the second reset spring are set. Since the straight guide column is slidably connected to the second mounting plate and one end of the straight guide column is connected to the second fixed plate, during the mold closing process, the second mounting plate will be resisted by the die seat and move toward the second fixed plate. At this time, the straight guide column and the second mounting plate slide relative to each other. At this time, the two external extrusion blocks move closer to each other, which can resist the outer wall of the product and realize the shaping of the outer wall of the product. The setting of the second reset spring enables the second mounting plate and the second fixed plate to automatically reset after the mold is separated. Such a structural setting can realize the driving of the external extrusion block.

[0025] Optionally, it also includes a secondary shaping mechanism, which includes a second mold core and a shaping plug-in block, the second mold core is arranged on the side of the punch seat facing the die seat, the shaping plug-in block is arranged on the side of the die seat facing the punch seat, and the second mold core is arranged opposite to the shaping plug-in block.

[0026] By adopting the above technical solution and setting up the secondary shaping mechanism, through the facing setting of the second mold core and the shaping plug, when the punch seat and the die seat are closed, the shaping plug is inserted into the frame of the product, and the shaping plug cooperates with the second mold core to achieve secondary shaping of the product.

[0027] Optionally, a blanking plate is further included, which is located on one side of the die seat, and the blanking plate extends obliquely downward along its own length direction away from one side of the die seat.

[0028] By adopting the above technical solution, the setting of the blanking plate provides a convenient way of unloading the finished products. The inclined design of the blanking plate allows the products to slide out smoothly, reducing the need for manual operation and improving production efficiency.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application can shape the border of the product by setting up the inner support component, which can improve the yield rate of the product with the border.

[0030] 2. The present application can shape the inner wall of the frame of the product and the outer 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 products with frames.

[0031] 3. Through the setting of a secondary shaping mechanism, the present application can further shape the product for a second time after shaping the frame of the product, which can further improve the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the shaping device of the present application.

[0033] Figure 2 It is a schematic cross-sectional view of the shaping device of the present application.

[0034] Figure 3 It is a schematic diagram of the overall structure of the punch seat of this application.

[0035] Figure 4 It is a schematic diagram of the overall structure of the external extrusion shaping mechanism of the present application.

[0036] Figure 5 It is a schematic cross-sectional structural diagram of the punch seat of the present application.

[0037] Figure 6 It is a schematic cross-sectional view of another position of the punch seat of the present application.

[0038] Figure 7 It is a schematic diagram of the overall structure of the die base of the present application.

[0039] Figure 8 It is a schematic diagram of the overall structure of the internal support shaping mechanism of the present application.

[0040] Fig. 9 It is a schematic diagram of the cross-sectional structure of the die seat of the present application.

[0041] Fig.10 yes Figure 8 Schematic diagram of the local enlarged structure of part A.

[0042] In the figure, 1, top plate; 2, punch seat; 21, guide groove; 22, second fixing plate; 23, second mounting plate; 231, straight guide hole; 24, second guide assembly; 241, guide column; 242, guide hole; 25, second return spring; 3, die seat; 31, first groove; 32, first mounting plate; 33, first fixing plate; 34, first guide assembly; 35, first return spring; 4, bottom plate; 5, external extrusion shaping mechanism; 51, first mold core; 52, external extrusion assembly; 521, external extrusion block; 5211, oblique guide hole; 522, clamping groove; 523, external extrusion drive member; 52 31. Straight guide column; 5232. Oblique guide column; 6. Internal support shaping mechanism; 61. Internal support assembly; 611. Internal support block; 6111. Limiting hole; 6112. Connecting block; 612. Internal support driving member; 6121. Internal support column; 6122. Limiting column; 62. Inclined guide assembly; 621. First inclined surface; 622. Second inclined surface; 623. Slide rail; 624. Slide groove; 63. Resistance block; 631. Displacement groove; 64. Elastic reset member; 641. Connecting ring; 642. Second spring; 7. Secondary shaping mechanism; 71. Second mold core; 72. Shaping plug block; 8. Blanking plate. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 -Attached Fig.10 , further details of this application are given.

[0044] A MIM product shaping device, referring to Figure 1 and Figure 2 , including a top plate 1, a punch seat 2, a die seat 3 and a bottom plate 4, the top plate 1, the punch seat 2, the die seat 3 and the bottom plate 4 are arranged in sequence along the vertical direction, and the top plate 1 is connected to the punch seat 2, the die seat 3 is connected to the bottom plate 4, and the punch seat 2 and the die seat 3 are arranged opposite to each other along the vertical direction. With such a structural arrangement, the product to be shaped is installed between the punch seat 2 and the die seat 3, and then the punch seat 2 and the die seat 3 are molded together, which can realize the shaping of the product.

[0045] Reference Figure 2 and Figure 3An external extrusion shaping mechanism 5 is arranged on the punch seat 2, and the external extrusion shaping mechanism 5 includes a first mold core 51 and two external extrusion components 52. The first mold core 51 and the external extrusion components 52 are both arranged on the lower side of the punch seat 2, and the first mold core 51 is located between the two external extrusion components 52.

[0046] In this embodiment, four external extrusion shaping mechanisms 5 are provided, and the four external extrusion shaping mechanisms 5 are arranged in sequence and at intervals along the length direction of the punch seat 2 .

[0047] Reference Figure 3 and Figure 4 The external extrusion assembly 52 includes an external extrusion block 521, two external extrusion blocks 521 are arranged at intervals along the width direction of the punch seat 2, and the first mold core 51 is located between the two external extrusion blocks 521, and a clamping groove 522 is formed between the first mold core 51 and the two external extrusion blocks 521. The two external extrusion blocks 521 are slidably connected to the punch seat 2 along the width direction of the punch seat 2, and the two external extrusion blocks 521 are both provided with an external extrusion driving member 523.

[0048] When the product to be shaped is located in the clamping groove 522, the two external extrusion blocks 521 move towards each other under the drive of the two external extrusion driving members 523, and can clamp and squeeze the side wall of the product to be shaped to achieve the shaping of the outer side wall of the product.

[0049] Reference Figure 4 and Figure 5 , a plurality of guide grooves 21 are provided on the lower side of the punch seat 2, and the length direction of the guide grooves 21 is arranged along the width direction of the punch seat 2. The guide grooves 21 are arranged one by one with the first mold core 51, the first mold core 51 is located in the corresponding guide groove 21, and the corresponding two external extrusion blocks 521 are both located in the corresponding guide groove 21, and the external extrusion blocks 521 are slidably connected with the inner side wall of the corresponding guide groove 21 along the width direction of the punch seat 2. Therefore, the opening of the guide grooves 21 can guide the movement of the external extrusion blocks 521 and improve the stability of the movement of the external extrusion blocks 521.

[0050] Reference Figure 4 and Figure 5 The external extrusion drive member 523 includes a straight guide column 5231 and an inclined guide column 5232. The length direction of the straight guide column 5231 is arranged along the vertical direction, and the straight guide column 5231 is slidably connected to the punch seat 2 along its own length direction, and 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 inclined and extends in a direction away from the corresponding first mold core 51. An inclined guide hole 5211 is penetrated and opened on one side of the external extrusion block 521 facing the punch seat 2. The inclined guide column 5232 is plugged and matched with the corresponding inclined guide hole 5211, and the inclined guide column 5232 is slidably connected to the inner wall of the corresponding inclined guide hole 5211.

[0051] The external extrusion drive member 523 is provided with a straight guide column 5231 and an oblique guide column 5232. When the straight guide column 5231 moves on the punch seat 2, the straight guide column 5231 can drive the oblique guide column 5232 to move in the vertical direction, and then, under the cooperation of the oblique guide column 5232 and the oblique guide hole 5211, the external extrusion block 521 will move along the width direction of the punch seat 2. Under the cooperation of the two external extrusion drive members 523, the distance between the two external extrusion blocks 521 can be adjusted to achieve the adjustment of the width of the clamping groove 522. On the one hand, the clamping of the product to be shaped is achieved; on the other hand, the product to be shaped is squeezed from the outside to achieve the shaping of the product outside.

[0052] Reference Figure 5 and Figure 6 The punch base 2 includes 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 arranged in sequence from top to bottom, and a plurality of first mold cores 51 and a plurality of external extrusion components 52 are all arranged on the lower side of the second mounting plate 23.

[0053] In this embodiment, refer to Figure 6 A plurality of second guide assemblies 24 are further arranged between the second fixing plate 22 and the second mounting plate 23. The second guide assemblies 24 include guide posts 241. A guide hole 242 is formed through the second mounting plate 23. The guide posts 241 are plugged into and matched with the guide holes 242. The guide posts 241 are slidably connected to the inner wall of the guide holes 242 along their own axial direction. One end of the guide posts 241 is connected to the second fixing plate 22. The coordinated arrangement of the plurality of second guide assemblies 24 can guide the relative movement between the second fixing plate 22 and the second mounting plate 23.

[0054] In this embodiment, refer to Figure 6 A plurality of second return springs 25 are also provided between the second fixing plate 22 and the second mounting plate 23. The plurality of second return springs 25 are all provided in the vertical direction, one end of the second return spring 25 is connected to the second fixing plate 22, and the other end is connected to the second mounting plate 23. The provision of the second return spring 25 ensures that after the product is shaped, the second fixing plate 22 and the second mounting plate 23 can automatically return to the separated state, so as to facilitate the next product shaping.

[0055] When the punch base 2 and the die base 3 are closed, the second mounting plate 23 and the second fixed plate 22 are close to each other due to the setting of the second guide assembly 24; on the contrary, when the punch base 2 and the die base 3 are separated, the second mounting plate 23 and the second fixed plate 22 are separated due to the setting of the second return spring 25.

[0056] Reference Figure 4 and Figure 5A plurality of straight guide holes 231 are formed through the second mounting plate 23, and the straight guide posts 5231 are arranged one by one corresponding to the straight guide holes 231, and the straight guide posts 5231 are plugged into and matched with the corresponding straight guide holes 231, and the straight guide posts 5231 are slidably connected to the inner side walls of the corresponding straight guide holes 231 along the vertical direction, and the lower ends of the straight guide posts 5231 are connected to the second fixing plate 22.

[0057] When the punch seat 2 and the die seat 3 are in mold closing, the second fixed plate 22 and the second mounting plate 23 move toward each other, at which time the straight guide column 5231 moves downward, and the external extrusion block 521 moves toward the corresponding first mold core 51. On the contrary, when the punch seat 2 and the die seat 3 are separated, 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 external extrusion block 521 moves away from the corresponding first mold core 51. Therefore, such a setting of the punch seat 2 can drive the external extrusion assembly 52 to achieve extrusion shaping of the outer side wall of the product.

[0058] Reference Figure 2 and Figure 7 An internal support shaping mechanism 6 is arranged on the upper side of the die base 3, and the internal support shaping mechanism 6 includes a plurality of internal support components 61, and the plurality of internal support components 61 are arranged in sequence and spaced apart along the length direction of the die base 3, and the internal support components 61 are arranged in one-to-one correspondence with the first mold core 51, and the internal support components 61 and the corresponding first mold core 51 are arranged opposite to each other in the vertical direction.

[0059] Reference 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 all slidably connected to the die base 3 , and an inner support driving member 612 is also provided between the plurality of inner support blocks 611 .

[0060] In this embodiment, four inner support blocks 611 are provided, and the four inner support blocks 611 are respectively arranged around the upper end of the inner support column 6121 .

[0061] Reference Figure 8 and Fig. 9 The inner support driving member 612 includes an inner support column 6121 , which is arranged along the vertical direction. The inner support column 6121 is located between a plurality of inner support blocks 611 , and the plurality of inner support blocks 611 are all located at the upper end of the inner support column 6121 .

[0062] Reference Figure 8 and Fig.10An inclined guide assembly 62 is provided between the inner support block 611 and the inner support column 6121. The inclined guide assembly 62 includes a second inclined surface 622, which is provided 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 inclined in the vertical direction, and the upper side of the second inclined surface 622 is inclined and extends in the direction of the center line of the inner support column 6121. The inclined guide assembly 62 also includes a first inclined surface 621, which is provided on a side of the inner support block 611 facing the inner support column 6121, and the first inclined surface 621 is slidably connected with the second inclined surface 622 along the length direction corresponding to the second inclined surface 622.

[0063] Under the action of the inclined guide assembly 62 , when the inner support blocks 611 and the inner support pillars 6121 move relative to each other, a plurality of the inner support blocks 611 will move closer to or away from each other.

[0064] Reference Figure 8 and Fig.10 The second inclined surface 622 is provided with a slide rail 623, and the length direction of the slide rail 623 is arranged along the length direction of the second inclined surface 622. The first inclined surface 621 is provided with a slide groove 624, and the slide groove 624 penetrates the second inclined surface 622 along the length direction of the second inclined surface 622. The slide groove 624 is plug-fitted with the slide rail 623, and the slide rail 623 is slidably connected with the inner side wall of the slide groove 624 along its own length direction.

[0065] The cooperation between the slide rail 623 and the slide groove 624 can increase the stability of the sliding connection between the inner support column 6121 and the inner support block 611 .

[0066] Reference Figure 8 and Fig. 9 A limiting post 6122 is arranged between the two inner support blocks 611. The limiting post 6122 is arranged in the horizontal direction. A plug-in hole is provided through the side wall of the inner support post 6121. The limiting post 6122 is coaxially plugged with the plug-in hole. A limiting hole 6111 is provided through the inner support block 611. The limiting post 6122 is plugged with the inner support block 611. The limiting post 6122 is slidably connected with the inner side wall of the limiting hole 6111 along the vertical direction. The limiting post 6122 is slidably connected with the inner side wall of the limiting hole 6111 along its own length direction.

[0067] The matching arrangement 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, thereby preventing the inner support block 611 and the inner support column 6121 from sliding apart.

[0068] Reference Figure 8 and Fig. 9The punch seat 2 is provided with a resistance block 63, and a clearance groove 631 is provided on the resistance block 63. The inner support column 6121 is inserted into the clearance groove 631, and a plurality of inner support blocks 611 are all located in the clearance groove 631. The inner side wall of the clearance groove 631 is parallel to the corresponding inner support block 611 and is arranged at intervals. A connecting block 6112 is provided on the side of the inner support block 611 away from the inner support column 6121. The connecting block 6112 is located at the lower side of the inner support block 611, and the connecting block 6112 is located at the lower side of the resistance block 63. The connecting block 6112 and the resistance block 63 are in vertical contact.

[0069] Reference Figure 8 and Fig. 9 The punch seat 2 is also provided with an elastic reset member 64, which includes a connecting ring 641, which is sleeved on the outside of the inner support column 6121, and the inner side wall of the connecting ring 641 is spaced from the outer side wall of the inner support column 6121. The connecting ring 641 is located at the lower side of the connecting block 6112, and the lower sides of several connecting blocks 6112 all abut against the connecting ring 641. The elastic reset member 64 also includes several second springs 642, the axial direction of the second springs 642 is arranged along the vertical direction, the upper end of the second spring 642 is connected to the connecting ring 641, and the lower end is connected to the punch seat 2.

[0070] When the punch seat 2 and the die seat 3 are molded together, first, the punch seat 2 and the die seat 3 are preliminarily molded together, and the upper ends of the four inner support blocks 611 are inserted into the frame of the product; secondly, the punch seat 2 and the die seat 3 continue to be molded together, and the punch seat 2 abuts against the abutment block 63, and at this time, the abutment block 63 abuts against a number of inner support blocks 611 to move vertically downward, and at this time, under the action of the inclined guide assembly 62, the four inner support blocks 611 can synchronously move in a direction away from the inner support column 6121, and at this time, the four inner support blocks 611 can support and shape the inner wall of the product frame. On the contrary, when the punch seat 2 and the die seat 3 are separated from the mold, under the action of a number of second springs 642, the connecting ring 641 will abut against a number of inner support blocks 611 to reset, and at the same time, the abutment block 63 will reset.

[0071] Reference Figure 8 and Fig. 9 The first groove 31 is formed on the die seat 3, the inner support column 6121 is located in the first groove 31, and the lower end of the inner support column 6121 is connected to the bottom plate 4; a plurality of inner support blocks 611 are located in the first groove 31; the abutment block 63 is located in the first groove 31, and the abutment block 63 is plugged and matched with the first groove 31; the connecting ring 641 and a plurality of second springs 642 are located in the first groove 31, and the upper end of the second spring 642 is connected to the connecting ring 641, and the lower end is connected to the bottom plate 4. The opening of the first groove 31 can provide an installation space for the inner support shaping mechanism 6.

[0072] Reference Fig. 9The die base 3 includes 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 arranged in sequence from top to bottom, and the first fixed plate 33 is connected to the bottom plate 4. The first fixed plate 33 is slidably connected to the first mounting plate 32 along the vertical direction. 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 have 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 to the first fixed plate 33, and the upper end is connected to the first mounting plate 32. The first groove 31 runs through the first mounting plate 32 and the first fixed plate 33, and the abutment block 63 is connected to the first mounting plate 32 by bolts.

[0073] Reference Figure 8 and Fig. 9 When the punch seat 2 and the die seat 3 are molded together, the punch seat 2 first contacts the first mounting plate 32, and at this time, the plurality of inner support blocks 611 are inserted into the frame of the product; the punch seat 2 and the die seat 3 continue to be molded together, and the die seat 3 contacts the first mounting plate 32 and moves toward the first fixed plate 33, and at this time, the contact block 63 contacts the plurality of inner support blocks 611 and moves downward, and the four inner support blocks 611 can synchronously move in a direction away from the inner support column 6121, and at this time, the four inner support blocks 611 can support and shape the inner wall of the product frame. Therefore, the structural setting of the die seat 3 can realize the driving of the inner support blocks 611.

[0074] Reference Figure 3 and Figure 7 A secondary shaping mechanism 7 is also provided between the punch seat 2 and the die seat 3. The secondary shaping mechanism 7 includes a plurality of second mold cores 71 and a plurality of shaping plugs 72. The plurality of second mold cores 71 are all provided on the lower side of the punch seat 2. The second mold cores 71 correspond to the first mold cores 51 one by one, and the second mold cores 71 and the first mold cores 51 are spaced apart along the width direction of the punch seat 2. The plurality of shaping plugs 72 are all provided on the lower side of the die seat 3, and the shaping plugs 72 correspond to the inner support components 61 one by one, and the shaping plugs 72 and the corresponding inner support components 61 are spaced apart along the width direction of the die seat 3. The second mold cores 71 and the shaping plugs 72 correspond to each other one by one, and the second mold cores 71 and the shaping plugs 72 are arranged opposite to each other in the vertical direction.

[0075] The product after frame shaping can be installed through the second mold core 71. At this time, the male mold base 2 and the female mold base 3 are molded together, and the shaping plug block 72 cooperates with the second mold core 71 to achieve secondary shaping of the product.

[0076] Reference Figure 1The shaping device also includes a blanking plate 8, one end of which is located on one side of the width direction of the die seat 3, and the other end of the blanking plate 8 is inclined and extended downward. When the product shaping is completed, the shaped product can be disassembled and placed in the blanking plate 8 to realize product unloading.

[0077] The implementation principle of the embodiment of the present application is as follows: first, the first shaping of the product is achieved through the external extrusion shaping mechanism 5 and the internal support shaping mechanism 6, the product is placed on the die seat 3, and when the male die seat 2 and the female die seat 3 are molded, the two external extrusion blocks 521 move toward each other to contact the outer side wall of the product, and the four internal support blocks 611 move back and forth to contact the inner side wall of the product. This can achieve the shaping of the upper frame of the product.

[0078] Secondly, the product is shaped for the second time by the secondary shaping mechanism 7, and the product is placed on the die seat 3. At this time, the frame of the product is sleeved on the corresponding shaping plug 72. When the punch seat 2 and the die seat 3 are closed, the second mold core 71 cooperates with the shaping plug 72 to achieve secondary shaping of the product.

[0079] Finally, after the secondary shaping is completed, the product is transported to the blanking plate 8 and the product is unloaded.

[0080] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A MIM product shaping device, characterized in that: include: A punch seat (2) and a die seat (3), wherein the punch seat (2) and the die seat (3) are arranged opposite to each other; The male die seat (2) is provided with a first die core (51), and the female die seat (3) is provided with an inner support assembly (61), wherein the inner support assembly (61) is arranged opposite to the first die core (51); The inner support assembly (61) comprises a plurality of inner support blocks (611), the plurality of inner support blocks (611) being arranged in a circumferential manner, and an inner support driving member (612) being provided between the plurality of inner support blocks (611), the inner support driving member (612) being used to drive the plurality of inner support blocks (611) to move closer to each other or away from each other.

2. A MIM product shaping device according to claim 1, characterized in that: The inner support driving member (612) comprises an inner support column (6121), one end of the inner support column (6121) is connected to the female die seat (3), the other end is arranged toward 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), and the side wall of the inner support column (6121) is provided with a second inclined surface (622), and the second inclined surface (622) is in contact with the corresponding first inclined surface (621); The second inclined surface (622) is arranged to be inclined in the length direction with respect to the length direction of the inner support column (6121), and the second inclined surface (622) is inclined along its own length direction toward one side of the punch seat (2) and extends toward 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 its own length direction; An elastic reset member (64) is provided between the inner support block (611) and the die seat (3).

3. A MIM product shaping device according to claim 2, characterized in that: A slide rail (623) is provided on the second inclined surface (622), a slide groove (624) is provided on the first inclined surface (621), the slide groove (624) is plugged into and matched with the slide rail (623), and the slide rail (623) is slidably connected to the inner wall of the slide groove (624) along its length direction.

4. A MIM product shaping device according to claim 2, characterized in that: The inner support driving member (612) further comprises a resisting block (63), a clearance groove (631) is formed through the resisting block (63), the inner support column (6121) and a plurality of the inner support blocks (611) are located in the clearance groove (631), and the inner side wall of the clearance groove (631) is spaced apart from the inner support block (611); A connecting block (6112) is provided on the side wall of the inner support block (611); the connecting block (6112) is located between the abutting block (63) and the elastic return member (64) along the length direction of the inner support column (6121); the abutting block (63) abuts against the connecting block (6112); and the elastic return member (64) is connected to the connecting block (6112).

5. A MIM product shaping device according to claim 4, characterized in that: The die base (3) comprises a first mounting plate (32), a first groove (31) is formed through the first mounting plate (32), the inner support column (6121), the elastic reset member (64) and the plurality of inner support blocks (611) are all located in the first groove (31), the abutment block (63) is plug-fitted into the first groove (31), and the abutment block (63) is detachably connected to the first mounting plate (32); A first fixing plate (33) is spaced apart from one side of the first mounting plate (32) away from the punch seat (2); one end of the inner support column (6121) is connected to the first fixing plate (33); a plurality of first return springs (35) are arranged between the first mounting plate (32) and the first fixing plate (33); one end of the first return spring (35) is connected to the first mounting plate (32), and the other end is connected to the first fixing plate (33).

6. A MIM product shaping device according to claim 1, characterized in that: Two external extrusion blocks (521) are arranged on one side of the male die seat (2) facing the female die seat (3), and the first die core (51) is located between the two external extrusion blocks (521); The punch seat (2) is provided with an external extrusion driving member (523) for driving the external extrusion block (521) to move towards or away from the first mold core (51).

7. A MIM product shaping device according to claim 6, characterized in that: A guide groove (21) is provided on one side of the male die seat (2) facing the female die seat (3); the length direction of the guide groove (21) is arranged along the spacing direction of the two external extrusion blocks (521); the first mold core (51) and the two external extrusion blocks (521) are both located in the guide groove (21); and the external extrusion blocks (521) are slidably connected to the inner side wall of the guide groove (21) along the length direction of the guide groove (21).

8. A MIM product shaping device according to claim 6, characterized in that: The external extrusion drive member (523) comprises an inclined guide column (5232), an inclined guide hole (5211) is formed through the external extrusion block (521), the inclined guide column (5232) is plug-fitted with the inclined guide hole (5211), and the inclined guide column (5232) is slidably connected with the inner wall of the inclined guide hole (5211), a straight guide column (5231) is arranged at one end of the inclined guide column (5232) facing the punch seat (2), and the other end is arranged to extend obliquely in a direction away from the first mold core (51); The male die seat (2) comprises a second mounting plate (23), the second mounting plate (23) and the two external extrusion blocks (521) are arranged on a side of the second mounting plate (23) facing the female die seat (3), a second fixing plate (22) is arranged at a distance on a side of the second mounting plate (23) facing away from the female die seat (3), a second return spring (25) is arranged between the second fixing plate (22) and the second mounting plate (23), one end of the second return spring (25) is connected to the second mounting plate (23), and the other end is connected to the second fixing plate (22); The length direction of the straight guide column (5231) is arranged along the spacing direction between the second mounting plate (23) and the second fixing plate (22), one end of the straight guide column (5231) is connected to the second fixing plate (22), and the straight guide column (5231) is slidably connected to the second mounting plate (23) along its length direction.

9. A MIM product shaping device according to claim 1, characterized in that: The invention also comprises a secondary shaping mechanism (7), wherein the secondary shaping mechanism (7) comprises a second mold core (71) and a shaping plug-in block (72), wherein the second mold core (71) is arranged on a side of the punch seat (2) facing the die seat (3), and the shaping plug-in block (72) is arranged on a side of the die seat (3) facing the punch seat (2), and the second mold core (71) and the shaping plug-in block (72) are arranged opposite to each other.

10. A MIM product shaping device according to claim 1, characterized in that: It also comprises a blanking plate (8), wherein the blanking plate (8) is located on one side of the die seat (3), and the blanking plate (8) extends obliquely downwards along its own length direction away from one side of the die seat (3).

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