DPF carrier extrusion forming die

Abstract

The utility model discloses a DPF carrier extrusion forming die which comprises a die plate, a mud outlet plate, a die tool base and a die tool gland, a mud inlet plane composed of a plurality of mud inlet holes is formed in the front face of the die plate, and a mud outlet plane composed of mud outlet holes is formed in the back face of the die plate. A mud outlet plate mud outlet groove is formed in the position, corresponding to the mud outlet plane, of the mud outlet plate, a tool base mud outlet groove is formed in the mold tool base in the mud outlet direction in a penetrating mode, and a mold plate installation opening matched with the mold plate is formed in the upper end of the tool base mud outlet groove; a tool pressing cover mud outlet groove is formed in the mold tool pressing cover in the mud outlet direction in a penetrating mode, a mud outlet plate installation opening matched with the mud outlet plate is formed in the lower end of the tool pressing cover, the mold tool base and the mold tool pressing cover are additionally arranged, and the mold and the mud outlet plate are matched for assembly, so that the mold and the mud outlet plate do not need to be provided with additional installation structures; and only damaged accessories in the four accessories need to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of DPF carrier molds, and particularly relates to an extrusion molding mold for a DPF carrier. Background Art

[0002] Our company's patent with the authorization announcement number CN216372658U previously disclosed a unit forming mold for large-sized honeycomb ceramics, including a circular mold plate. On the front of the circular mold plate, a square mud inlet plane composed of several circular mud inlet holes is formed. On the back of the circular mold plate, a square mud outlet plane composed of several uniformly and continuously distributed square mud outlet holes is formed. The circular mud inlet holes extend into the circular mold plate and are joined with the extension segments of the square mud outlet holes on the other side in the circular mold plate. One circular mud inlet hole is connected to the connection points of four adjacent square mud outlet holes. On the circumferential direction of the square mud outlet plane, uniformly distributed mud guiding grooves diverging outward are also provided. It also includes a cover plate that cooperates with the circular mold plate. The circumferential shape of the cover plate is the same as that of the circular mold plate. On the cover plate, a clamping groove capable of adapting to a step is formed. A mud guiding plate extending from the clamping groove can cover all the mud guiding grooves, and the surrounded mud guiding plates together form a mud guiding surface.

[0003] After multiple uses in actual production, it is found that the mold with a similar structure has the following problems: The mold and the cover plate are directly installed and connected through the installation structure provided on their circumferences. If damaged, the entire mold or the cover plate needs to be replaced; at the same time, the overall structure of the mold and the cover plate is fixed and cannot well adapt to various installation situations. Content of the Utility Model

[0004] Purpose of the Utility Model:

[0005] In order to overcome the problems existing in the prior art, the utility model provides an extrusion molding mold for a DPF carrier. By adding a mold tooling base and a mold tooling pressing cover and assembling them with the mold and the mud outlet plate, it is not necessary to set up additional installation structures for the mold and the mud outlet plate. When the device is damaged, only the damaged parts among the four accessories of the mold, the mud outlet plate, the mold tooling base, and the mold tooling pressing cover need to be replaced.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A DPF carrier extrusion molding die, comprising a die plate, a mud outlet plate, a die tooling base and a die tooling pressing cover. The front surface of the die plate forms a mud inlet plane composed of a number of mud inlet holes, and the back surface of the die plate forms a mud outlet plane composed of mud outlet holes. The mud outlet holes protrude from the die plate to form steps and are connected to the mud inlet holes. A mud outlet groove corresponding to the mud outlet plane is provided on the mud outlet plate. The die tooling base is provided with a tooling base mud outlet groove penetrating along the mud outlet direction, and a die plate installation opening adapted to the die plate is provided at its upper end. The die tooling pressing cover is provided with a tooling pressing cover mud outlet groove penetrating along the mud outlet direction, and a mud outlet plate installation opening adapted to the mud outlet plate is provided at its lower end.

[0008] Preferably, a positioning boss is provided on the circumferential direction of the mud outlet plane, and a positioning groove is correspondingly provided on the mud outlet groove of the mud outlet plate.

[0009] Preferably, circular milling grooves extend outward from the four corners of the positioning groove, and the milling grooves are filleted with the right-angle sides of the positioning groove.

[0010] Preferably, the mud inlet holes are circular and the mud outlet holes are square.

[0011] Preferably, the connection part between the inner circular mud inlet hole and the four adjacent square mud outlet holes is butt-jointed, and the circular mud inlet hole at the outermost periphery is butt-jointed with the included angle formed after the common extension of the square mud outlet hole on the other side and the positioning boss.

[0012] Preferably, a plurality of the mud outlet holes communicate with each other from the protruding parts on the die plate, and a plurality of mud guiding grooves communicating with the mud outlet holes are provided on the positioning boss.

[0013] Preferably, a plurality of threaded holes are provided on the circumferential direction of the die tooling base, and fixing holes corresponding to the threaded holes are provided on the circumferential direction of the die tooling pressing cover.

[0014] Preferably, the rear end of the tooling pressing cover mud outlet groove gradually expands outward in the mud outlet direction.

[0015] Beneficial effects: Compared with the prior art, the present utility model has the following advantages:

[0016] 1. By adding a die tooling base and a die tooling pressing cover, and cooperating with the die plate and the mud outlet plate for assembly, no additional installation structure needs to be provided on the die plate and the mud outlet plate. When the device is damaged, only the damaged one among the four accessories of the die plate, the mud outlet plate, the die tooling base and the die tooling pressing cover needs to be replaced.

[0017] 2. It can well adapt to various installation situations. Only by replacing different die tooling bases and die tooling covers, there is no need to replace the whole.

[0018] 3. The four corners of the positioning groove extend outward to form circular milling grooves. The milling grooves are rounded at the four right-angled sides of the positioning groove. With this structure, the situation of switching milling cutters for milling right angles is avoided. Without changing the milling cutter, round corners can be directly milled, ensuring the edge distance between the side and the sludge outlet side, making the sludge discharge smooth, and the alignment error is less than 5 silk. Brief Description of the Drawings

[0019] Figure 1 is an exploded view of the present utility model Figure 1 ;

[0020] Figure 2 is an exploded view of the present utility model Figure 2 ;

[0021] Figure 3 is an assembly drawing of the present utility model;

[0022] Figure 4 is a three-dimensional view of one direction of the mold plate of the present utility model;

[0023] Figure 5 is a three-dimensional view of another direction of the mold plate of the present utility model;

[0024] Figure 6 is a three-dimensional view of one direction of the sludge outlet plate of the present utility model;

[0025] Figure 7 is a three-dimensional view of another direction of the sludge outlet plate of the present utility model;

[0026] Figure 8 is a three-dimensional view of one direction of the mold tooling base of the present utility model;

[0027] Figure 9 is a three-dimensional view of another direction of the mold tooling base of the present utility model;

[0028] Figure 10 is a three-dimensional view of one direction of the mold tooling pressing cover of the present utility model;

[0029] Figure 11 is a three-dimensional view of another direction of the mold tooling pressing cover of the present utility model;

[0030] Explanation of the Drawing Marks:

[0031] 1. Mold plate; 11. Mud inlet hole; 12. Mud outlet hole; 13. Positioning boss; 2. Sludge outlet plate; 21. Sludge outlet groove of the sludge outlet plate; 211. Positioning groove; 212. Milling groove; 3. Mold tooling base; 31. Sludge outlet groove of the tooling base; 32. Mold plate installation opening; 33. Threaded hole; 4. Mold tooling pressing cover; 41. Sludge outlet groove of the tooling pressing cover; 42. Sludge outlet plate installation opening; 43. Fixing hole. Detailed Implementation Manner

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] Any feature disclosed in this specification (including any additional claims, abstracts and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0035] like Figures 1-11 As shown, a DPF carrier extrusion molding die comprises a die plate 1, a mud discharge plate 2, a die tooling base 3 and a die tooling pressure cover 4, the front side of the die plate 1 forms a mud inlet plane composed of a plurality of mud inlet holes 11, the back side of the die plate 1 forms a mud discharge plane composed of mud discharge holes 12, the mud discharge holes 12 protrude from the die plate 1 to form a step and are communicated with the mud inlet holes 11, a mud discharge plate mud discharge groove 21 is provided on the mud discharge plate 2 corresponding to the mud discharge plane, the die tooling base 3 is provided with a tooling base mud discharge groove 31 through-through along the mud discharge direction, a die plate mounting port 32 adapted to the die plate 1 is provided at the upper end thereof, the die tooling pressure cover 4 is provided with a tooling pressure cover mud discharge groove 41 through-through along the mud discharge direction, a mud discharge plate mounting port 42 adapted to the mud discharge plate 2 is provided at the lower end thereof. By adding a mold tooling base and a mold tooling cover, and assembling with the mold plate and the mud discharge plate, the mold plate and the mud discharge plate do not need to be provided with an additional installation structure. When the device is damaged, only the damaged parts of the mold plate, the mud discharge plate, the mold tooling base and the mold tooling cover need to be replaced; it can adapt well to various installation conditions, and only different mold tooling bases and mold tooling covers need to be replaced, without the need to replace the entire device.

[0036] In this embodiment, a positioning boss 13 is provided on the circumference of the mud discharge plane, and a positioning groove 211 is correspondingly provided on the mud discharge plate mud discharge groove 21. The positioning boss 13 and the positioning groove 211 facilitate assembly of the mold plate and the mud discharge plate.

[0037] In this embodiment, circular milling grooves 212 are provided by extending outward from the four corners of the positioning groove 211, and the milling grooves 212 are filleted with the four right-angle sides of the positioning groove 211. Circular milling grooves are provided by extending outward from the four corners of the positioning groove, and the milling grooves are filleted with the right-angle sides of the positioning groove. With this structure, the situation of switching milling cutters for milling right angles is avoided. Without changing the milling cutter, fillets can be directly milled, ensuring the edge distance between the side and the mud outlet side, making the mud outlet smooth, and the alignment error being less than 5 silk.

[0038] In this embodiment, the mud inlet hole 11 is circular, the mud outlet hole 12 is square, the inner circular mud inlet hole 11 is butt-jointed with the joints of four adjacent square mud outlet holes 12, and the outermost circular mud inlet hole 11 is butt-jointed with the included angle formed after the common extension of the square mud outlet hole on the other side and the positioning boss 13. A plurality of the mud outlet holes 12 communicate with each other from the raised parts on the die plate 1, and a plurality of mud guiding grooves communicating with the mud outlet holes 12 are arranged on the positioning boss. The inner structure of the die plate with this structure is the same as the die plate disclosed in the patent with the publication number CN216372658U by the applicant. It can be understood that for die plates with other structures, the above effects can also be achieved by adding a die tooling base and a die tooling pressing cover.

[0039] In this embodiment, a plurality of threaded holes 33 are provided in the circumferential direction of the die tooling base 3, and fixing holes 43 corresponding to the threaded holes are provided in the circumferential direction of the die tooling pressing cover 4, which is convenient for the overall assembly of the die tooling base 3, the die plate 1, the mud outlet plate 2, and the die tooling pressing cover 4.

[0040] In this embodiment, the rear end of the mud outlet groove 41 of the tooling pressing cover gradually expands outward in the mud outlet direction.

[0041] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solutions of the present invention, and to completely describe the technical solutions, purposes, and effects of the present invention. The purpose is to make the public understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the protection scope of the present invention.

[0042] The above embodiments are not exhaustive listings based on the present invention. In addition, there may be multiple other embodiments not listed. Any substitution and improvement made on the basis of not violating the concept of the present invention fall within the protection scope of the present invention.

Claims

1. A DPF carrier extrusion molding die, characterized in that: The invention comprises a mold plate (1), a mud discharge plate (2), a mold tooling base (3) and a mold tooling cover (4); the front side of the mold plate (1) forms a mud inlet plane formed by a plurality of mud inlet holes (11); the back side of the mold plate (1) forms a mud discharge plane formed by mud discharge holes (12); the mud discharge holes (12) protrude from the mold plate (1) to form steps and are connected to the mud inlet holes (11); a mud discharge plate mud discharge groove (21) is provided on the mud discharge plate (2) corresponding to the mud discharge plane; the mold tooling base (3) is provided with a tooling base mud discharge groove (31) extending along the mud discharge direction; a mold plate mounting opening (32) adapted to the mold plate (1) is provided at the upper end; the mold tooling cover (4) is provided with a tooling cover mud discharge groove (41) extending along the mud discharge direction; a mud discharge plate mounting opening (42) adapted to the mud discharge plate (2) is provided at the lower end.

2. A DPF carrier extrusion molding die according to claim 1, characterized in that: A positioning boss (13) is provided in the circumferential direction of the mud discharge plane, and a positioning groove (211) is correspondingly provided in the mud discharge plate mud discharge groove (21).

3. A DPF carrier extrusion molding die according to claim 2, characterized in that: Circular milling grooves (212) are provided at four corners of the positioning groove (211) extending outwards, and the milling grooves (212) and the right-angled edges of the positioning groove (211) are transitionally rounded.

4. A DPF carrier extrusion molding die according to claim 1, characterized in that: The mud inlet hole (11) is circular, and the mud outlet hole (12) is square.

5. A DPF carrier extrusion molding die according to claim 2 or 4, characterized in that: The inner circular mud inlet hole (11) is butted against the connection of four adjacent square mud outlet holes (12), and the outermost circular mud inlet hole (11) is butted against the angle formed by the coexistence of the square mud outlet hole on the other side and the positioning boss (13).

6. A DPF carrier extrusion molding die according to claim 5, characterized in that: The plurality of mud outlet holes (12) are interconnected from the raised portion on the mold plate (1), and the positioning boss is provided with a plurality of mud guide grooves connected to the mud outlet holes (12).

7. The DPF carrier extrusion molding die according to claim 1, characterized in that: The mold tool base (3) is provided with a plurality of threaded holes (33) in the circumferential direction, and the mold tool pressure cover (4) is provided with fixing holes (43) in the circumferential direction corresponding to the threaded holes.

8. The DPF carrier extrusion molding die according to claim 1, characterized in that: The rear end of the tooling gland mud discharge groove (41) gradually expands outwards in the mud discharge direction.

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