Multi-channel ceramic membrane extrusion die

Abstract

The utility model discloses a multi-channel ceramic membrane extrusion die and relates to the technical field of extrusion dies. The mold comprises an outer mold, a cooling assembly for cooling the outer side of a pipe body is arranged at the front end of the outer mold, a side feeding assembly for inputting pug along the periphery is arranged on the surface of the outer mold, and an inner mold for cooling the inner side of the pipe body is arranged in the outer mold. The outer side of a formed pipe body is cooled through the first cooling tank, so that the pipe body is preliminarily shaped to prevent the pipe body from deforming after being shaped and influencing the product quality, the inner side of the pipe body in the forming process is slowly cooled through the second cooling tank, and the pipe body is preliminarily shaped through the cooperation of the first cooling tank and the second cooling tank to prevent the pipe body from collapsing and deforming due to more channels in the pipe body; material conveying is carried out on the connecting position of the base and the outer die sleeve through the side sleeve plate, and the material conveying at the base extrudes mutually, so that pug enters the outer die sleeve and is more compact, and the gap between the outer die sleeve and the inner die rod is fully filled.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion dies, in particular to a multi-channel ceramic film extrusion die. Background Art

[0002] The production of ceramic membranes is to extrude the raw materials to obtain a tube body of the desired shape, and then cut the ceramic membrane. The Chinese patent with publication number CN210850719U discloses a multi-channel ceramic membrane extrusion die, including an outer die and an inner die, the outer die is a hollow shell, the inner die is vertically inserted into the outer die for use, the inner die includes a number of molding columns, a base and a feed hole, the feed hole is set on the base, and the molding column is fixed on the base.

[0003] According to the disclosed technology, there are multiple forming columns inside the ceramic membrane extrusion mold, and the inner wall thickness of the circular channel formed is uneven, the clay is not compact enough, and the discharge is uneven, which leads to the problem of cracking of the clay after drying. After the tube body leaves the mold, the outer side of the tube body is cooled and initially shaped, while the internal circular channel is not shaped in time, which can easily lead to a certain degree of deformation inside. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a multi-channel ceramic film extrusion die.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical scheme: a multi-channel ceramic membrane extrusion mold, including an outer mold, a cooling component on the outside of the cooling tube body is arranged at the front end of the outer mold, a side feeding component for inputting mud along the four sides is arranged on the surface of the outer mold, and an inner mold on the inside of the cooling tube body is arranged inside the outer mold.

[0006] It comprises an outer mold, the front end of which is provided with a cooling assembly for cooling the outer side of a cooling tube body, the surface of the outer mold is provided with a side feeding assembly for inputting mud material along the four sides, and the interior of the outer mold is provided with an inner mold for cooling the inner side of the cooling tube body.

[0007] The cooling assembly includes a ring, a ring is fixedly installed at the front end of the outer mold, a first cooling groove is opened inside the ring, a first cooling pipe is fixedly installed on the surface of the ring, and there are two groups of first cooling pipes, which are symmetrically arranged on the upper and lower sides of the ring, and the first cooling pipe is connected to the first cooling groove.

[0008] The side feed assembly includes a side sleeve plate, the front side of the base is fixedly mounted with the side sleeve plate, the front side of the side sleeve plate is connected to the outer mold sleeve, the surface of the base is fixedly connected with a feed pipe, and the feed pipe is connected to the side sleeve plate.

[0009] The inner cavity of the side sleeve plate is communicated with the inner cavity of the outer mold sleeve, and the feed port of the side sleeve plate is located around the connection between the base and the outer mold sleeve.

[0010] The inner mold includes a fixing frame, a fixing frame is fixedly installed on the front side of the base, a second cooling groove is opened inside the fixing frame, a second cooling pipe is fixedly installed on the surface of the fixing frame, the number of the second cooling pipes is two groups, the two groups of second cooling pipes are symmetrically arranged on the upper and lower sides of the fixing frame, and the second cooling pipes are connected to the second cooling groove, and the second cooling pipes penetrate the side feed assembly and the surface of the outer mold and extend to the outside.

[0011] An inner mold rod is fixedly connected to the front side of the fixing frame, a reflow groove is provided inside the inner mold rod, and the reflow groove is connected to the second cooling groove.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model uses a first cooling groove to cool the outer side of the formed tube body so that it is initially shaped to prevent deformation after shaping and affect product quality, and uses a second cooling groove to slowly cool the inner side of the tube body during the forming process. The two cooperate to allow the tube body to be initially shaped to prevent collapse and deformation due to a large number of channels inside. The side sleeve plate is used to feed material to the connection between the base and the outer mold sleeve, and the material is squeezed with the material fed at the base, so that the mud enters the outer mold sleeve more tightly and fully fills the gap between the outer mold sleeve and the inner mold rod, avoiding the problem of insufficient local mud due to uneven inner wall thickness, which affects product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0016] Figure 3 It is a schematic diagram of the internal cross-section of the utility model;

[0017] Figure 4 It is a first partial cross-sectional schematic diagram of the utility model;

[0018] Figure 5 It is a second partial sectional schematic diagram of the utility model.

[0019] Figure numerals: 1. outer mold; 101. base; 102. outer mold sleeve; 2. cooling assembly; 201. sleeve ring; 202. first cooling trough; 203. first cooling pipe; 3. side feed assembly; 301. side sleeve plate; 302. feed pipe; 4. inner mold; 401. fixing frame; 402. second cooling trough; 403. second cooling pipe; 404. inner mold rod; 405. reflux trough. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0021] like Figure 1-Figure 5 As shown, a multi-channel ceramic membrane extrusion die comprises an outer die 1, a cooling assembly 2 for cooling the outside of a tube body is arranged at the front end of the outer die 1, a side feed assembly 3 for feeding mud material along all sides is arranged on the surface of the outer die 1, and an inner die 4 for cooling the inside of the tube body is arranged inside the outer die 1; specifically, mud material is fed into the outer die 1, and the shape of the mud material is limited by the outer die 1 and the inner die 4 to obtain the desired multi-channel ceramic membrane, the cooling assembly 2 is used to cool the outside of the formed tube body to preliminarily shape it, so as to prevent it from deforming after shaping and affecting the product quality, the side feed assembly 3 is used to feed material around the rear end of the outer die 1, and is squeezed with the rear end feed material, so that the mud material enters the outer die 1 more compactly, fully fills the gap between the outer die 1 and the inner die 4, and avoids the problem of insufficient local mud material due to uneven inner wall thickness, which affects the product quality, the inner die 4 is used to slowly cool the inside of the tube body during the forming process, and the cooling assembly 2 is used to preliminarily shape the tube body, so as to prevent the inside from collapsing and deforming due to the large number of channels.

[0022] The outer mold 1 includes a base 101, a side feed assembly 3 is fixedly installed on the front side of the base 101, and an outer mold sleeve 102 is fixedly installed on the front side of the side feed assembly 3; specifically, mud is input into the outer mold sleeve 102 through the base 101, so that the mud forms the required tube body inside the outer mold sleeve 102.

[0023] The cooling assembly 2 includes a collar 201, on which the front end of the outer mold 1 is fixedly mounted the collar 201, a first cooling groove 202 is provided inside the collar 201, a first cooling pipe 203 is fixedly mounted on the surface of the collar 201, and two groups of first cooling pipes 203 are symmetrically arranged on the upper and lower sides of the collar 201, and the first cooling pipes 203 are connected to the first cooling groove 202; specifically, coolant is input through the bottom first cooling pipe 203, and the coolant is discharged from the top first cooling pipe 203 after passing through the first cooling groove 202, and the tube body passing through the inner wall of the collar 201 is cooled and initially shaped to prevent deformation before being sent to high-temperature sintering and molding, and the wide contact surface of the first cooling groove 202 quickly and fully cools the outer side of the tube body.

[0024] The side feed assembly 3 includes a side sleeve 301, the side sleeve 301 is fixedly installed on the front side of the base 101, the front side of the side sleeve 301 is connected to the outer mold sleeve 102, the surface of the base 101 is fixedly connected to a feed pipe 302, and the feed pipe 302 is connected to the side sleeve 301; specifically, mud is input into the feed pipe 302 and transported to the side sleeve 301 through the feed pipe 302, the mud of the side sleeve 301 enters the outer mold sleeve 102 along the connection between the base 101 and the outer mold sleeve 102, and comes into contact and compression with the mud input from the base 101, thereby improving the compactness of the input mud in the outer mold sleeve 102, making it tighter and more sufficient, and ensuring that the interior of the tube body with different thicknesses can be fully filled.

[0025] The inner cavity of the side sleeve 301 is connected with the inner cavity of the outer mold sleeve 102, and the feed port of the side sleeve 301 is located around the connection between the base 101 and the outer mold sleeve 102; specifically, the clay input at the side sleeve 301 is contacted and squeezed with the clay input at the base 101, so that the clay is fully compacted.

[0026] The inner mold 4 includes a fixing frame 401, the fixing frame 401 is fixedly installed on the front side of the base 101, a second cooling groove 402 is opened inside the fixing frame 401, and a second cooling pipe 403 is fixedly installed on the surface of the fixing frame 401. There are two groups of second cooling pipes 403, and the two groups of second cooling pipes 403 are symmetrically arranged on the upper and lower sides of the fixing frame 401, and the second cooling pipes 403 are connected with the second cooling groove 402, and the second cooling pipes 403 pass through the side feed assembly 3 and the surface of the outer mold 1 and extend to the outside.

[0027] An inner mold rod 404 is fixedly connected to the front side of the fixed frame 401. A reflux groove 405 is opened inside the inner mold rod 404, and the reflux groove 405 is connected to the second cooling groove 402. Specifically, the coolant is input through the second cooling pipe 403 at the bottom, circulated through the second cooling groove 402 to the reflux groove 405, and the coolant is discharged from the second cooling pipe 403 at the top. The inner wall of the tube body passing through the surface of the inner mold rod 404 is gradually cooled, and the tube body is cooled and initially shaped in cooperation with the cooling component 2 to prevent deformation before being sent to high-temperature sintering and molding. The narrow contact surface of the reflux groove 405 gradually cools the inner wall of the tube body to facilitate cooperation with the cooling component 2.

[0028] In summary, when the utility model is in use, the staff inputs mud into the base 101, and the mud enters the outer mold sleeve 102 through the base 101. At the same time, the mud enters the side sleeve 301 along the feed pipe 302. The mud in the side sleeve 301 and the mud in the base 101 are contacted and squeezed at the connection between the base 101 and the outer mold sleeve 102, thereby improving the compactness of the input mud in the outer mold sleeve 102 and making it more compact and sufficient. The mud fills the interior of the outer mold sleeve 102 and the surface of the inner mold rod 404 to form the required multi-channel pipe body, and the coolant delivery device is respectively connected to the first coolant. The cooling tube 203 is connected to the second cooling tube 403 to convey cooling liquid. The cooling liquid input by the second cooling tube 403 circulates through the second cooling groove 402 to the reflux groove 405, and gradually cools down the inner wall of the tube body passing through the surface of the inner mold rod 404. When the tube body slides to the cooling component 2 in the outer mold sleeve 102, the cooling liquid input by the first cooling tube 203 is inside the first cooling groove 202 to cool the tube body passing through the inner wall of the collar 201, and cooperates with the inner mold rod 404 to preliminarily shape the tube body. After the tube body is extruded, it enters subsequent cutting, sintering and other processes.

Claims

1. Multi-channel ceramic membrane extrusion die, characterized in that: The invention comprises an outer mold (1), wherein a cooling assembly (2) for cooling the outer side of a tube body is arranged at the front end of the outer mold (1), a side feeding assembly (3) for inputting mud material along the four sides is arranged on the surface of the outer mold (1), and an inner mold (4) for cooling the inner side of the tube body is arranged inside the outer mold (1).

2. The multi-channel ceramic membrane extrusion die according to claim 1, characterized in that: The outer mold (1) comprises a base (101), a side feed assembly (3) is fixedly mounted on the front side of the base (101), and an outer mold sleeve (102) is fixedly mounted on the front side of the side feed assembly (3).

3. The multi-channel ceramic membrane extrusion die according to claim 1, characterized in that: The cooling component (2) comprises a collar (201), the front end of the outer mold (1) is fixedly mounted with the collar (201), a first cooling groove (202) is provided inside the collar (201), a first cooling pipe (203) is fixedly mounted on the surface of the collar (201), the number of the first cooling pipes (203) is two groups, the two groups of first cooling pipes (203) are symmetrically arranged on the upper and lower sides of the collar (201), and the first cooling pipes (203) are connected to the first cooling groove (202).

4. The multi-channel ceramic membrane extrusion die according to claim 2, characterized in that: The side feed assembly (3) comprises a side sleeve plate (301), the side sleeve plate (301) is fixedly mounted on the front side of the base (101), the front side of the side sleeve plate (301) is connected to the outer mold sleeve (102), the surface of the base (101) is fixedly connected to a feed pipe (302), and the feed pipe (302) is connected to the side sleeve plate (301).

5. The multi-channel ceramic membrane extrusion die according to claim 4, characterized in that: The inner cavity of the side sleeve plate (301) is communicated with the inner cavity of the outer mold sleeve (102), and the feed port of the side sleeve plate (301) is located around the connection between the base (101) and the outer mold sleeve (102).

6. The multi-channel ceramic membrane extrusion die according to claim 2, characterized in that: The inner mold (4) includes a fixing frame (401), the fixing frame (401) is fixedly installed on the front side of the base (101), a second cooling groove (402) is opened inside the fixing frame (401), and a second cooling pipe (403) is fixedly installed on the surface of the fixing frame (401), and the number of the second cooling pipes (403) is two groups, and the two groups of second cooling pipes (403) are symmetrically arranged on the upper and lower sides of the fixing frame (401), and the second cooling pipes (403) are connected to the second cooling groove (402), and the second cooling pipes (403) pass through the side feed assembly (3) and the surface of the outer mold (1) and extend to the outside.

7. The multi-channel ceramic membrane extrusion die according to claim 6, characterized in that: An inner mold rod (404) is fixedly connected to the front side of the fixing frame (401), a reflow groove (405) is provided inside the inner mold rod (404), and the reflow groove (405) is connected to the second cooling groove (402).

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