Flange rotary cutting die for cold extrusion cavity of filter

Abstract

The utility model discloses a filter cold extrusion cavity flash rotary cutting die which comprises an upper die assembly, a lower die assembly and a lower die moving mechanism, and the upper die assembly comprises an upper cover plate, an upper die base, an upper padding plate, an upper back plate, an upper clamping plate, a concave die plate, a spring assembly mechanism, an upper ejector block, a suspension screw and an upper limiting column. Through the arrangement of the upper die assembly, the lower die assembly and the lower die moving mechanism, a lower knife edge can be conveniently driven to transversely and longitudinally run by a circle according to a designed stroke in an extrusion mode to cut and separate redundant materials at the lower part; the problems that multiple cutters are adopted in traditional pure machining, cutter loss is large, and filter product blank fine ribs and thin walls are prone to deformation are solved, the working procedure is simple and convenient, the machining efficiency and the yield are improved, and the problems that the filter product blank machining efficiency is low, machining singleness is solved, and the machining working procedures are multiple and complex are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cavities, in particular to a flash peeling die for cold extruded cavity of a filter. Background Art

[0002] Traditional filter cavity manufacturing methods generally adopt pure machining methods. The cavity height is met by pure machining methods, such as milling and cutting, and finally the cavity is formed according to the design drawings. However, this pure machining method has low processing efficiency and high defect rate. The cold extruded cavity is easy to deform during machining. Moreover, machining uses many tools, resulting in large tool loss, and small ribs and thin walls are easy to deform. Based on this situation, we proposed a flash cutting die for cold extruded cavity of filter. Utility Model Content

[0003] The utility model aims to provide a filter cold extrusion cavity flash peeling die to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter cold extrusion cavity flash peeling die, comprising an upper die assembly, a lower die assembly and a lower die movable mechanism, wherein the upper die assembly comprises an upper cover plate, an upper die seat, an upper pad, an upper backing plate, an upper clamping plate, a concave die plate, a spring assembly mechanism, an upper top block, a hanging screw and an upper limit column;

[0005] The lower die assembly comprises a supporting plate, a first spring, a lower die seat, a lower limit column, a lower pad, a lower clamping plate and a driving sleeve;

[0006] The lower mold movable mechanism comprises a guide rail, a lower fixed block, an inner limit block, a lower cutting edge, a screw assembly and a mold core.

[0007] Preferably, the upper cover plate is threadedly fixed on the top of the upper die base, the upper pad, upper clamping plate and concave die plate are all threadedly fixed on the bottom of the upper die base and are arranged in sequence from top to bottom, the upper back plate is threadedly fixed on the bottom left side of the upper die base, a guide column is installed in the upper back plate, the upper top block is movably sleeved in the concave die plate, the spring assembly mechanism is embedded and fixed on the bottom of the upper cover plate and fixedly connected to the top of the concave die plate, the hanging screw is slidably embedded in the upper die base, the bottom end of the hanging screw slides into the concave die plate and is fixedly connected to the top of the upper top block, and the upper limit column is fixedly connected to the bottom right side of the upper die base; the upper top block is suspended and supported to prevent falling by the arranged hanging screw, and the upper top block is elastically supported by the spring assembly mechanism.

[0008] Preferably, the lower die seat is threadedly fixed to the top of the support plate, the lower pad is threadedly fixed to the top of the lower die seat, the lower clamping plate is threadedly fixed to the top of the lower pad, the drive sleeve is embedded in the lower clamping plate and is threadedly fixed to the top of the lower pad, the lower pad, the lower die seat and the top of the support plate are provided with the same mounting cavity, the first spring movable sleeve is sleeved in the mounting cavity, the lower limit column is located below the upper limit column and is threadedly fixed to the right side of the top of the lower die seat, the inner walls on both sides of the drive sleeve are provided with stepped arc grooves, and the stepped concave parts of the two stepped arc grooves are staggered; the drive sleeve is positioned by using the set lower clamping plate.

[0009] Preferably, the movable sleeve of the guide rail is arranged on the inner upper part of the driving sleeve and is in movably contact with the top of the first spring, the top and bottom of both sides of the guide rail are arranged as inclined structures, and the two inclined structures on the same side are symmetrically arranged, and the inclined structures on both sides of the guide rail are respectively matched with the corresponding stepped arc-shaped grooves, the lower fixing block is threadedly fixed to the top of the guide rail, the lower blade is threadedly fixed to the top of the lower fixing block, and a waste material avoiding groove is arranged on the lower blade, the mold core is threadedly fixed to the top of the lower blade by a screw assembly, and there are two inner limit blocks which are threadedly fixed to the two sides of the top of the lower fixing block, and the inner limit blocks are located at the concave template. At the bottom, the guide rail is elastically supported by the first spring, and the inclined surfaces on both sides of the guide rail are squeezed with the corresponding stepped arc grooves when the guide rail moves downward. When the squeezing force cooperates with the step concave parts of the two stepped arc grooves to form a staggered arrangement, multiple reciprocating left and right lateral displacements will occur while the guide rail moves downward. The first spring will be compressed when the guide rail moves downward. When the pressure on the upper part is released later, the first spring in a compressed state is used to drive the guide rail to move upward and reset. The downward movement and left and right reciprocating displacement of the guide rail are used to achieve the effect of driving the lower blade to run one circle horizontally and vertically according to the designed stroke through the lower fixed block.

[0010] Preferably, a vertical guide hole adapted to the guide column is provided on the left rear side of the top of the lower clamping plate.

[0011] Preferably, a filter product blank matched with the inner side of the concave mold plate is arranged above the mold core, and the inner side of the filter product blank is matched with the mold core.

[0012] Preferably, a vertical groove is provided at the bottom of the lower cutting edge, a positioning rod is sleeved in the vertical groove, and a groove movably contacting with the outer top of the positioning rod is provided at the right side of the bottom of the mold core.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides an upper die assembly, a lower die assembly and a lower die movable mechanism, which facilitates the use of extrusion to drive the lower blade to run one circle horizontally and vertically according to the designed stroke to cut and separate the excess material in the lower part, thereby avoiding the problems of multiple tools, large tool wear and easy deformation of the fine ribs and thin walls of the filter product blank in traditional pure machining, and the process is simple, improving the machining efficiency and yield rate, solving the problems of low machining efficiency of the filter product blank, solving the singleness of machining, and solving the problems of multiple and complicated machining processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional structure diagram of a filter cold extrusion cavity flash peeling die proposed by the utility model;

[0016] Figure 2 It is a structural schematic diagram of a state in which a guide rail of a filter cold extrusion cavity flash peeling die proposed by the utility model is shifted toward the inner side of a driving sleeve;

[0017] Figure 3 It is a structural schematic diagram of a filter product blank of a filter cold extrusion cavity flash peeling die proposed by the utility model, in a state where some excess material is separated.

[0018] In the figure: 61, upper mold assembly; 1, upper cover plate; 2, upper mold base; 3, upper pad; 4, upper backing plate; 401, guide column; 5, upper clamping plate; 6, concave mold plate; 601, spring assembly mechanism; 7, upper top block; 701, hanging screw; 8, upper limit column; 9, filter product blank; 902, upper part of the product; 903, lower part of the excess material; 71, lower mold movable mechanism; 10, mold core; 101, screw assembly; 102, positioning rod; 11, lower blade; 110, waste material avoidance groove; 12, inner limit block; 13, lower fixed block; 14, guide rail; 15, drive sleeve; 151, stepped arc groove; 16, lower clamping plate; 17, lower pad; 18, lower limit column; 19, lower mold base; 20, support plate; 21, first spring; 210, installation cavity. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 3As shown, a filter cold extrusion cavity flash peeling die proposed in this embodiment includes an upper die assembly 61, a lower die assembly and a lower die movable mechanism 71, wherein the upper die assembly 61 includes an upper cover plate 1, an upper die seat 2, an upper pad 3, an upper backing plate 4, an upper clamping plate 5, a concave die plate 6, a spring assembly mechanism 601, an upper top block 7, a hanging screw 701 and an upper limit column 8;

[0021] The lower die assembly includes a support plate 20, a first spring 21, a lower die seat 19, a lower limit column 18, a lower pad 17, a lower clamping plate 16 and a driving sleeve 15;

[0022] The lower mold movable mechanism 71 includes a guide rail 14 , a lower fixing block 13 , an inner limit block 12 , a lower cutting edge 11 , a screw assembly 101 and a mold core 10 .

[0023] Specifically, the upper cover plate 1 is threadedly fixed on the top of the upper die base 2, the upper pad 3, the upper clamping plate 5 and the concave template 6 are all threadedly fixed on the bottom of the upper die base 2, and are arranged in sequence from top to bottom, the upper back plate 4 is threadedly fixed on the bottom left side of the upper die base 2, a guide column 401 is installed in the upper back plate 4, the upper top block 7 is movably sleeved in the concave template 6, the spring assembly mechanism 601 is embedded and fixed on the bottom of the upper cover plate 1 and is fixedly connected to the top of the concave template 6, the hanging screw 701 is slidably embedded in the upper die base 2, wherein the top of the upper die base 2 is provided with an embedding groove slidably connected to the outer side of the hanging screw 701, the bottom end of the hanging screw 701 slides into the concave template 6 and is fixedly connected to the top of the upper top block 7, and the upper limit column 8 is fixedly connected to the bottom right side of the upper die base 2; the upper top block 7 is suspended and supported to prevent falling by the set hanging screw 701, and the upper top block 7 is elastically supported by the spring assembly mechanism 601;

[0024] The upper cover plate 1 is fixed to the top of the upper die base 2 by two top screw threads, and the fixing method is that two threaded grooves are opened on the right side of the top of the upper die base 2, and the top screw threads are screwed into the threaded grooves, and two T-shaped bolt through holes are opened on the right side of the top of the upper cover plate 1, and the top screw is movably sleeved in the two T-shaped bolt through holes; the upper pad 3, the upper clamping plate 5 and the concave template 6 are fixed to the bottom of the upper die base 2 by bottom screws and two pin threads, and the fixing method is that the two pins are respectively embedded in the right side of the top and the right side of the bottom of the upper clamping plate 5, and the upper pad 3 and the concave template 6 are both provided with jacks on the side close to each other, and the jacks are movably sleeved on the outside of the corresponding pins, and the upper pad 3 is provided with a threaded groove on the left side of the bottom, and the bottom screw is screwed into the threaded groove, and the upper pad 3, the upper clamping plate 5 and the concave template 6 are all provided with bolt through holes on the left side of the bottom for the end of the bottom screw to pass through;

[0025] The difference between the top screw and the bottom screw is that the top screw represents installation from top to bottom, while the bottom screw represents installation from bottom to top. In addition, the length of the top screw can be selected as needed.

[0026] In addition, the tops of the upper pad 3 and the upper clamp 5 are each provided with a first movable through hole for the bottom end of the spring assembly mechanism 601 to move through, and the tops of the upper pad 3 and the upper clamp 5 are each provided with a second movable through hole for the bottom end of the suspension screw 701 to move through.

[0027] Furthermore, the lower die seat 19 is threadedly fixed to the top of the support plate 20, the lower pad 17 is threadedly fixed to the top of the lower die seat 19, and the lower clamping plate 16 is threadedly fixed to the top of the lower pad 17. A vertical guide hole adapted to the guide column 401 is provided on the left rear side of the top of the lower clamping plate 16. The driving sleeve 15 is embedded in the lower clamping plate 16 and is threadedly fixed to the top of the lower pad 17. The lower pad 17, the lower die seat 19 and the top of the support plate 20 are provided with the same mounting cavity 210. The first spring 21 is movably sleeved in the mounting cavity 210. The lower limit column 18 is located below the upper limit column 8 and is threadedly fixed to the top right side of the lower die seat 19. Stepped arc grooves 151 are provided on the inner walls of both sides of the driving sleeve 15. The step concave parts of the two stepped arc grooves 151 are staggered. The driving sleeve 15 is positioned by the lower clamping plate 16.

[0028] The lower die base 19 is threadedly fixed to the top of the support plate 20 by two top screws, the drive sleeve 15 is installed on the top of the lower pad 17 by top screws and pins, and the top of the lower clamping plate 16 is provided with an embedding hole that fits and contacts the outer side of the drive sleeve 15.

[0029] Furthermore, the guide rail 14 is movably sleeved on the inner upper part of the driving sleeve 15 and is in movably contact with the top of the first spring 21. The top and bottom of both sides of the guide rail 14 are arranged as inclined structures. The two inclined structures on the same side are symmetrically arranged. The inclined structures on both sides of the guide rail 14 are respectively matched with the corresponding stepped arc grooves 151. The lower fixing block 13 is threadedly fixed to the top of the guide rail 14. The lower blade 11 is threadedly fixed to the top of the lower fixing block 13. The lower blade 11 is provided with a waste falling avoidance groove 110. The mold core 10 is threadedly fixed to the top of the lower blade 11 by a screw assembly 101. There are two inner limit blocks 12 and they are respectively threadedly fixed on both sides of the top of the lower fixing block 13. The inner limit blocks 12 are located below the concave template 6. A vertical groove is provided at the bottom of the lower blade 11, and a positioning rod 102 is sleeved in the vertical groove. A groove that is movably in contact with the outer top of the positioning rod 102 is provided on the right side of the bottom of the mold core 10. The top of the mold core 10 is provided with a groove that is in movably contact with the outer top of the positioning rod 102. The inner side of the filter product blank 9 is adapted to the filter product blank 9, and the inner side of the filter product blank 9 is adapted to the mold core 10; the first spring 21 is set to elastically support the guide rail 14, and the inclined surfaces on both sides of the guide rail 14 are used to squeeze with the corresponding stepped arc grooves 151 when moving downward, and the step concave parts of the two stepped arc grooves 151 are staggered when the extrusion force cooperates. When the guide rail 14 moves downward, it will compress the first spring 21. When the pressure on the upper part is released later, the first spring 21 in a compressed state is used to drive the guide rail 14 to move up and reset. The downward movement and left and right reciprocating displacement of the guide rail 14 are used to achieve the effect of driving the lower blade 11 to run one circle horizontally and vertically according to this designed stroke through the lower fixed block 13. Under this action, the outer shape and internal special-shaped ribs of the filter product blank 9 are separated to form an upper product 902 and a lower excess material 903, and finally a product that meets the design is achieved;

[0030] The lower blade 11 is fixed to the top of the lower fixing block 13 by a pin and a top screw thread, the inner limit block 12 is fixed to the top of the lower fixing block 13 by a top screw, and the lower fixing block 13 is fixed to the top of the guide rail 14 by a pin and a top screw thread.

[0031] The method of using this embodiment is as follows: put the filter product blank 9 on the mold core 10, install the upper cover plate 1 on the extended end of the external press, drive the upper cover plate 1 downward through the external press, and the upper cover plate 1 drives the concave mold plate 6 downward through the upper mold base 2, the upper pad 3 and the upper clamping plate 5 in turn. When the concave mold plate 6 contacts the inner limit block 12, there is a certain standard precision gap between the concave mold plate 6 and the inner limit block 12. This standard precision gap is a certain standard gap based on different materials and different material thicknesses to avoid the gap being too small to cause the concave mold plate 6 and the lower blade 11 to collide and damage, and the gap being too large to cause large burrs or When the filter product blank 9 continues to move downward, under the elastic action of the spring assembly mechanism 601, the upper top block 7 and the filter product blank 9 are squeezed and displaced in the concave template 6 and compress the spring assembly mechanism 601, so that the upper part of the filter product blank 9 enters the concave template 6, and when it continues to move downward, the upper top block 7 squeezes the filter product blank 9 to move downward, and the filter product blank 9 squeezes the lower blade 11 downward through the mold core 10, and the lower blade 11 drives the guide rail 14 to move downward through the lower fixed block 13. When the guide rail 14 moves downward, it compresses the first spring 21, and at the same time, the inclined surfaces on both sides of the guide rail 14 are used to contact with the corresponding platform when moving downward. The stepped arc groove 151 is squeezed, and the squeezing force cooperates with the step concave parts of the two stepped arc grooves 151 to form a staggered arrangement. When the guide rail 14 moves downward, it will undergo multiple reciprocating left and right lateral displacements, and when it moves downward beyond the bottom of the stepped arc groove 151, it will return to the center position. When the pressure on the upper part is subsequently released, the first spring 21 in a compressed state is used to drive the guide rail 14 to move upward and reset. The downward movement and left and right reciprocating displacement of the guide rail 14 are used to achieve the effect of driving the lower blade 11 to run one circle horizontally and vertically according to the designed stroke through the lower fixed block 13. Under this action, The outer shape and internal special-shaped ribs of the filter product blank 9 are separated to form an upper product 902 and a lower excess material 903, and finally a product that meets the design is achieved; the lower blade 11 is automatically driven to run one circle horizontally and vertically according to the designed stroke during extrusion to cut and separate the lower excess material 903, thereby avoiding the problems of traditional pure machining using many tools, large tool wear and easy deformation of the fine ribs and thin walls of the filter product blank 9, and the process is simple, which improves the processing efficiency and yield rate, solves the problems of low processing efficiency of the filter product blank 9, solves the singleness of processing, and also solves the problems of multiple and complex processing procedures.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filter cold extrusion cavity flash peeling die, comprising an upper die assembly (61), a lower die assembly and a lower die movable mechanism (71), characterized in that: The upper die assembly (61) comprises an upper cover plate (1), an upper die seat (2), an upper pad (3), an upper backing plate (4), an upper clamping plate (5), a concave die plate (6), a spring assembly mechanism (601), an upper top block (7), a hanging screw (701) and an upper limit column (8); The lower die assembly comprises a supporting plate (20), a first spring (21), a lower die seat (19), a lower limiting column (18), a lower pad (17), a lower clamping plate (16) and a driving sleeve (15); The lower mold movable mechanism (71) comprises a guide rail (14), a lower fixing block (13), an inner limit block (12), a lower cutting edge (11), a screw assembly (101) and a mold core (10).

2. A filter cold extrusion cavity flash peeling die according to claim 1, characterized in that: The upper cover plate (1) is threadedly fixed on the top of the upper die base (2); the upper pad (3), the upper clamping plate (5) and the concave die plate (6) are all threadedly fixed on the bottom of the upper die base (2) and are arranged in sequence from top to bottom; the upper back plate (4) is threadedly fixed on the left side of the bottom of the upper die base (2); a guide column (401) is installed in the upper back plate (4); the upper top block (7) is movably sleeved in the concave die plate (6); the spring assembly mechanism (601) is embedded and fixed on the bottom of the upper cover plate (1) and is fixedly connected to the top of the concave die plate (6); the hanging screw (701) is slidably embedded in the upper die base (2); the bottom end of the hanging screw (701) slides into the concave die plate (6) and is fixedly connected to the top of the upper top block (7); the upper limit column (8) is fixedly connected to the right side of the bottom of the upper die base (2).

3. A filter cold extrusion cavity flash peeling die according to claim 2, characterized in that: The lower die base (19) is threadedly fixed on the top of the support plate (20), the lower pad (17) is threadedly fixed on the top of the lower die base (19), the lower clamping plate (16) is threadedly fixed on the top of the lower pad (17), the driving sleeve (15) is embedded in the lower clamping plate (16) and is threadedly fixed to the top of the lower pad (17), the lower pad (17), the lower die base (19) and the top of the support plate (20) are provided with a same mounting cavity (210), the first spring (21) is movably sleeved in the mounting cavity (210), the lower limit column (18) is located below the upper limit column (8) and is threadedly fixed to the top right side of the lower die base (19), and the inner walls on both sides of the driving sleeve (15) are provided with stepped arc grooves (151), and the stepped concave parts of the two stepped arc grooves (151) are staggered.

4. A filter cold extrusion cavity flash peeling die according to claim 3, characterized in that: The guide rail (14) is movably sleeved on the inner upper part of the driving sleeve (15) and is in movably contact with the top of the first spring (21). The tops and bottoms of both sides of the guide rail (14) are both arranged as inclined structures. The two inclined structures located on the same side are symmetrically arranged. The inclined structures on both sides of the guide rail (14) are respectively matched with corresponding stepped arc grooves (151). The lower fixed block (13) is threadedly fixed on the top of the guide rail (14). The lower blade (11) is threadedly fixed on the top of the lower fixed block (13). The lower blade (11) is provided with a waste material avoiding groove (110). The mold core (10) is threadedly fixed on the top of the lower blade (11) by a screw assembly (101). There are two inner limit blocks (12) which are respectively threadedly fixed on both sides of the top of the lower fixed block (13). The inner limit blocks (12) are located below the concave mold plate (6).

5. The filter cold extrusion cavity flash peeling die according to claim 3, characterized in that: A vertical guide hole matching the guide column (401) is provided on the left rear side of the top of the lower clamping plate (16).

6. A filter cold extrusion cavity flash peeling die according to claim 4, characterized in that: A filter product blank (9) adapted to the inner side of the concave mold plate (6) is arranged above the mold core (10), and the inner side of the filter product blank (9) is adapted to the mold core (10).

7. The filter cold extrusion cavity flash peeling die according to claim 4, characterized in that: A vertical groove is provided at the bottom of the lower blade (11), a positioning rod (102) is mounted in the vertical groove, and a groove is provided on the right side of the bottom of the mold core (10) for movably contacting the outer top of the positioning rod (102).

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