Embedded type dry pressing forming die

Abstract

The utility model relates to the technical field of powder forming machines, in particular to an embedded type dry pressing forming die which is characterized in that a die frame comprises a middle die mounting plate, an upper punch mounting seat and a lower punch mounting seat; a middle mold assembly is detachably mounted on the middle mold mounting plate, the middle mold assembly comprises a middle mold panel, a mounting hole is formed in the middle mold panel, a sub-middle mold is arranged in the mounting hole, a mold hole is formed in the sub-middle mold, a connecting plate is arranged at the bottom of the sub-middle mold, and the connecting plate is detachably mounted at the bottom of the middle mold panel; an upper punch is detachably mounted at the bottom of the upper punch mounting seat, a lower punch is detachably mounted on the lower punch mounting seat, the size of the upper punch and the size of the lower punch are matched with the size of a die hole of the sub middle die, and through holes allowing the lower punch to pass through are formed in the middle die mounting plate and the connecting plate. The problems that an existing hydraulic powder forming machine of 300 tons or above is high in mold manufacturing cost and difficult to disassemble and assemble are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder molding machines, and particularly relates to an inlaid dry pressing molding die. Background Art

[0002] Compression molding refers to a process in which powder particles are compacted into a green compact with a specified shape, size, and certain strength through certain solid-phase diffusion and mechanical interlocking actions between powder particles under the action of a molding die and external force.

[0003] At present, a set of dies for hydraulic powder molding machines with a capacity of more than 300 tons can only be used to produce products of one model specification and does not have universality. It is suitable for long-term mass production of products of the same model specification; in the production process of small batch orders and scattered parts, multiple sets of dies are required, and the manufacturing cost of each set of dies is as high as tens of thousands of yuan. Moreover, due to the large volume and heavy weight of the powder molding machine, a forklift is needed to assist in disassembling and installing the dies, which is difficult, time-consuming, and laborious, and the production flexibility is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inlaid dry pressing molding die to solve the problems of high manufacturing cost and difficult disassembly and assembly of the die for hydraulic powder molding machines with a capacity of more than 300 tons.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] An inlaid dry pressing molding die includes a die frame, and the die frame includes a middle die mounting plate, an upper punch mounting seat, and a lower punch mounting seat; a middle die assembly is detachably mounted on the middle die mounting plate, the middle die assembly includes a middle die panel, the middle die panel is provided with mounting holes, a sub-middle die is arranged in the mounting holes, the sub-middle die is provided with die holes, a connecting plate is arranged at the bottom of the sub-middle die, and the connecting plate is detachably mounted at the bottom of the middle die panel; an upper punch head is detachably mounted at the bottom of the upper punch mounting seat, a lower punch head is detachably mounted at the lower punch mounting seat, the sizes of the upper punch head and the lower punch head match the sizes of the die holes of the sub-middle die, and through holes for the lower punch head to pass through are provided on both the middle die mounting plate and the connecting plate.

[0007] Further, two equal-height blocks are arranged at the bottom of the middle die panel, and the two equal-height blocks are respectively located on the left and right sides of the middle die panel.

[0008] Further, four equal-height blocks are arranged at the bottom of the middle die panel, and the four equal-height blocks are respectively located at the front, rear, left, and right sides of the middle die panel.

[0009] Further, a plurality of first threaded holes are provided on the bottom surface of the middle mold panel. The plurality of first threaded holes are circumferentially and uniformly distributed around the installation hole, and the distance between the first threaded hole and the hole wall of the installation hole is not less than 15 mm. A plurality of first through holes corresponding to the positions of the first threaded holes are provided on the connecting plate. The connecting plate is installed at the bottom of the middle mold panel through bolts in cooperation with the first through holes and the first threaded holes.

[0010] Further, a plurality of second threaded holes are provided on the bottom surface of the sub-middle mold. The plurality of second threaded holes are circumferentially and uniformly distributed on the outer edge of the sub-middle mold, and the distance between the second threaded hole and the side wall of the sub-middle mold is not less than 15 mm. A plurality of second through holes corresponding to the positions of the second threaded holes are provided on the connecting plate. The connecting plate is installed at the bottom of the sub-middle mold through bolts in cooperation with the second through holes and the second threaded holes.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The mold frame of the utility model has universality. When the factory develops new products, only the sub-middle mold, the upper punch and the lower punch need to be designed and manufactured, which saves the materials of the mold, reduces the input cost of mold manufacturing, and reduces the steps of disassembling and installing the mold. The mold replacement operation is simple and fast, and the worker can easily complete it without the assistance of a forklift, saving time and effort, and effectively saving the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded view of the utility model;

[0014] Figure 2 is a cross-sectional view of the utility model;

[0015] Figure 3 is a schematic structural view of the middle mold assembly of the utility model.

[0016] In the figure: middle mold mounting plate 1, upper punch mounting seat 2, lower punch mounting seat 3, middle mold panel 4, mounting hole 41, equal-height block 42, sub-middle mold 5, mold hole 51, connecting plate 6, first through hole 61, second through hole 62, upper punch 7, lower punch 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following is a further detailed description through specific embodiments:

[0018] Embodiment

[0019] As Figure 1 shown, an inlaid dry pressing forming mold includes a mold frame, and the mold frame includes a middle mold mounting plate 1, an upper punch mounting seat 2 and a lower punch mounting seat 3.

[0020] The middle die mounting plate 1 is detachably mounted with a middle die assembly. The middle die assembly includes a middle die panel 4, a sub-middle die 5 and a connecting plate 6. An installation hole 41 is provided at the center of the middle die panel 4. A plurality of first threaded holes are provided on the bottom surface of the middle die panel 4. The plurality of first threaded holes are circumferentially distributed around the installation hole 41. The distance between the first threaded hole and the hole wall of the installation hole 41 is 15 mm. The outer shape of the sub-middle die 5 is adapted to the installation hole 41 of the middle die panel 4. A die hole 51 is provided at the center of the sub-middle die 5. A plurality of second threaded holes are provided on the bottom surface of the sub-middle die 5. The plurality of second threaded holes are circumferentially distributed on the outer edge of the sub-middle die 5. The distance between the second threaded hole and the outer wall of the sub-middle die 5 is 15 mm. A plurality of first through holes 61 and second through holes 62 are provided on the connecting plate 6. The first through holes 61 and the second through holes 62 correspond to the positions of the first threaded holes and the second threaded holes respectively. The connecting plate 6 is fixed to the bottom of the middle die panel 4 by bolts cooperating with the first through holes 61 and the first threaded holes. The connecting plate 6 is fixed to the bottom of the sub-middle die 5 by bolts cooperating with the second through holes 62 and the second threaded holes. The sub-middle die 5 is located in the installation hole 41 of the middle die panel 4.

[0021] In order to enable the sub-middle die 5 on the middle die panel 4 to have a certain activity space, equal-height blocks 42 are provided at the bottom of the middle die panel 4. The equal-height blocks 42 can be provided in two or four pieces. If provided in two pieces, the two equal-height blocks 42 are respectively installed on the left and right sides of the middle die panel 4. If provided in four pieces, the four equal-height blocks 42 are respectively installed on the front, back, left and right sides of the middle die panel 4.

[0022] The bottom of the upper punch mounting seat 2 is detachably mounted with an upper punch 7. The bottom of the lower punch mounting seat 3 is detachably mounted with a lower punch 8. The sizes of the upper punch 7 and the lower punch 8 are matched with the size of the die hole 51 of the sub-middle die 5. Through holes for the lower punch 8 to pass through are provided at the centers of the middle die mounting plate 1 and the connecting plate 6.

[0023] The mold frame of the present utility model has universality. When the factory develops new products, only the sub-middle die 5, the upper punch 7 and the lower punch 8 need to be designed and manufactured, which saves the materials of the mold, reduces the input cost of mold manufacturing, and reduces the steps of disassembling and installing the mold. The mold replacement operation is simple and fast, and the worker can easily complete it without the assistance of a forklift, saving time and effort, and effectively saving the labor cost.

[0024] The specific implementation is as follows:

[0025] Install the mold rack on the powder molding machine. Select the corresponding sub-middle mold 5 and assemble it with the middle mold panel 4 and the connecting plate 6 according to the product size. Install the assembled middle mold assembly on the middle mold mounting plate 1. Drive the middle mold assembly to move downward through the driving part of the powder molding machine until the top end of the lower punch 8 is located in the mold hole 51 of the sub-middle mold 5. At this time, a mold cavity is formed between the sub-middle mold 5 and the lower punch 8. Put the powder to be molded into the mold cavity. Drive the upper punch 7 to move downward through the driving part of the powder molding machine until the lower end of the upper punch 7 is located in the mold hole 51 of the sub-middle mold 5 and squeeze the powder downward. The powder in the mold cavity is molded under the combined action of the upper punch 7 and the lower punch 8. Drive the driving part to drive the upper punch 7 and the middle mold assembly to move upward, and then the molded product can be taken out.

[0026] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An inlaid dry pressing mold, characterized in that: It includes a mold frame which consists of a middle mold mounting plate (1), an upper punch mounting seat (2) and a lower punch mounting seat (3); a middle mold assembly is detachably mounted on the middle mold mounting plate (1). The middle mold assembly includes a middle mold panel (4). An installation hole (41) is provided on the middle mold panel (4). A sub-middle mold (5) is arranged in the installation hole (41). A mold hole (51) is provided on the sub-middle mold (5). A connecting plate (6) is provided at the bottom of the sub-middle mold (5). The connecting plate (6) is detachably mounted at the bottom of the middle mold panel (4); an upper punch head (7) is detachably mounted at the bottom of the upper punch mounting seat (2), and a lower punch head (8) is detachably mounted on the lower punch mounting seat (3). The sizes of the upper punch head (7) and the lower punch head (8) match the size of the mold hole (51) of the sub-middle mold (5). Through holes for the lower punch head (8) to pass through are provided on both the middle mold mounting plate (1) and the connecting plate (6).

2. The inlaid dry pressing forming die according to claim 1, wherein: Two equal-height blocks (42) are provided at the bottom of the middle mold panel (4), and the two equal-height blocks (42) are respectively located on the left and right sides of the middle mold panel (4).

3. The inlaid dry pressing forming die according to claim 1, wherein: Four equal-height blocks (42) are provided at the bottom of the middle mold panel (4), and the four equal-height blocks (42) are respectively located at the front, rear, left and right sides of the middle mold panel (4).

4. The inlaid dry pressing mold according to any one of claims 1-3, characterized in that: A plurality of first threaded holes are provided on the bottom surface of the middle mold panel (4). The plurality of first threaded holes are circumferentially distributed around the installation hole (41). The distance between the first threaded hole and the hole wall of the installation hole (41) is not less than 15 mm; a plurality of first through holes (61) corresponding to the positions of the first threaded holes are provided on the connecting plate (6). The connecting plate (6) is mounted at the bottom of the middle mold panel (4) by bolts in cooperation with the first through holes (61) and the first threaded holes.

5. The inlaid dry pressing forming die according to claim 4, characterized in that: A plurality of second threaded holes are provided on the bottom surface of the sub-middle mold (5). The plurality of second threaded holes are circumferentially distributed on the outer edge of the sub-middle mold (5). The distance between the second threaded hole and the side wall of the sub-middle mold (5) is not less than 15 mm; a plurality of second through holes (62) corresponding to the positions of the second threaded holes are provided on the connecting plate (6). The connecting plate (6) is mounted at the bottom of the sub-middle mold (5) by bolts in cooperation with the second through holes (62) and the second threaded holes.

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