Universal device for embossing and co-extrusion of extrusion die

By setting a matching connection structure between the embossing groove and the embossing block in the extrusion die, the forming problem caused by the notch in the embossing surface is solved, and the stable production of high-gloss profiles and the reduction of die costs are achieved.

CN224074945UActive Publication Date: 2026-04-03WUHU CONCH TAISEN EXTRUSION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When producing high-gloss co-extruded profiles, existing extrusion dies are prone to damage to the embossed surface notches, resulting in poor molding and shrinkage marks on the co-extruded surface. Furthermore, the dies are easily damaged during maintenance, increasing the cost of die manufacturing.

Method used

Design a universal co-extrusion device for embossing with an extrusion die. By setting an embossing groove on the die plate and matching the embossing block, and using bolts and positioning pins for fixed connection, the embossing block fills the gaps in the embossing surface, ensuring the profile forming quality and protecting the embossing surface.

Benefits of technology

It effectively avoids poor profile forming and shrinkage marks on the co-extrusion surface, reduces mold manufacturing costs, and improves mold life and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the embossing and co-extrusion universal device for the extrusion die, the appearance of the embossing block is consistent with the shape of the embossing groove of the mouth die plate, when a highlight profile is produced, the additionally-arranged embossing block is fixed in the embossing groove through the bolt and the positioning pin, the notch in the position of the embossing surface can be filled by the embossing block, and therefore the extrusion die can be used for producing the highlight profile. Therefore, the phenomena of poor molding and shrinkage marks of a co-extrusion surface in the starting process of the profile can be avoided; meanwhile, in the mold maintenance process, the knurling block can also play a good role in protecting the knurling surface, and the knurling surface at the outlet of the mouth mold plate is prevented from being damaged by collision; according to the extrusion die, the embossing block is additionally arranged on the die plate, so that an embossing die can be produced, and a high-gloss profile can be produced as required, and therefore, a co-extrusion die plate does not need to be additionally arranged, and the manufacturing cost of the die is greatly reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of extrusion die technology, and in particular relates to a universal device for embossing and co-extrusion of extrusion dies. Background Technology

[0002] As attached Figure 6 As shown, this is an embossing adjustment device for a single-wall profile mold, which can print the desired pattern on the surface of the profile, making the profile surface more beautiful and having a good visual effect and three-dimensionality.

[0003] Currently, this type of structure has the following drawbacks:

[0004] 1. When producing high-gloss co-extruded profiles, it is necessary to... Figure 6 The embossing accessories and pressure rollers shown are removed. After the embossing groove is processed, it will damage a gap in the embossing surface of the die, resulting in poor forming of the profile and shrinkage marks on the co-extrusion surface during the start-up process. At the same time, the die may also be damaged at the gap in the embossing surface during repeated maintenance.

[0005] 2. If the above problems are not effectively resolved, when producing high-gloss co-extruded profiles, additional co-extrusion die templates will be required, thereby increasing the processing and manufacturing costs of the die. Utility Model Content

[0006] This invention provides a universal device for co-extrusion with embossing using an extrusion die, which aims to solve the problems mentioned in the background art.

[0007] This utility model is implemented as follows: a universal device for co-extrusion with embossing using an extrusion die, comprising a die template and an embossing block;

[0008] The mouth template is provided with an embossed groove, the embossed groove is matched with the embossed block, and the embossed surface is provided at the joint between the embossed groove and the mouth template;

[0009] When the embossed block is assembled into the embossed groove, the embossed block fills the gap in the embossed surface.

[0010] Preferably, the embossed block is provided with a countersunk hole and a positioning pin hole one, and the bottom surface of the inner wall of the embossed groove is provided with a threaded hole and a positioning pin hole two, wherein the positioning pin hole one and the positioning pin hole two have the same diameter and are coaxial.

[0011] Preferably, the embossing groove and the embossing block are fixedly connected by bolts and locating pins.

[0012] Preferably, the bolt passes through the countersunk hole and the threaded hole for screwing, and the locating pin passes through the locating pin hole one and the locating pin hole two to connect the embossed groove to the embossed block.

[0013] Preferably, the embossing groove is processed by wire cutting, and the embossing block is also processed by wire cutting.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The shape of the embossing block is consistent with the shape of the embossing groove of the template. When producing high-gloss profiles, the additional embossing block is fixed in the embossing groove with bolts and positioning pins. The gap at the embossing surface will be filled by the embossing block. Therefore, it can avoid the phenomenon of poor forming and shrinkage marks on the co-extrusion surface during the start-up process.

[0016] 2. At the same time, during the mold maintenance process, the embossing block can also play a good protective role for the embossing surface, preventing the embossing surface at the mold exit from being damaged.

[0017] 3. By adding an embossing block to the die, it is possible to produce both embossing molds and high-gloss profiles when needed. Therefore, there is no need to add an extra co-extrusion die, which greatly reduces the production cost of the mold. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the mouth template, embossing groove, and embossing surface structure in an embodiment of this utility model;

[0021] Figure 4 This is a top view of the overall structure of an embodiment of the present utility model;

[0022] Figure 5 This is a bottom view of the overall structure of this utility model embodiment;

[0023] Figure 6 This is a 3D view of the overall structure in proportion.

[0024] In the picture:

[0025] 1. Embossing template; 2. Embossing groove; 3. Embossing surface; 4. Embossing block; 5. Adjusting screw; 6. Sliding block; 7. Fixing block; 8. Pressure roller. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example:

[0032] Please see Figures 1 to 6 This utility model provides a technical solution: a universal device for co-extrusion of extrusion molds, including a die template 1 and an embossing block 4; an embossing groove 2 is provided on the die template 1, the embossing groove 2 matches the embossing block 4, and an embossing surface 3 is provided at the junction of the embossing groove 2 and the die template 1; when the embossing block 4 is assembled into the embossing groove 2, the embossing block 4 fills the gap of the embossing surface 3.

[0033] For further details, please refer to Figure 1 The embossed block 4 is provided with a countersunk hole and a positioning pin hole 1. The bottom surface of the inner wall of the embossed groove 2 is provided with a threaded hole and a positioning pin hole 2. The positioning pin hole 1 and the positioning pin hole 2 have the same diameter and are coaxial.

[0034] Furthermore, the embossing groove 2 and the embossing block 4 are fixedly connected by bolts and locating pins.

[0035] Furthermore, the bolts pass through the countersunk hole and the threaded hole for screwing, and the locating pins pass through the locating pin hole one and the locating pin hole two to connect the embossed groove 2 with the embossed block 4.

[0036] Furthermore, the embossed groove 2 is processed by wire cutting, and the embossed block 4 is also processed by wire cutting.

[0037] In this embodiment, the embossing groove 2 is first machined by wire cutting to a depth of 22mm; then the embossing block 4 is machined by wire cutting, with the outline of the embossing block 4 matching the shape of the embossing groove 2. After machining, two M5 connecting bolts are threaded through the countersunk holes and screwed into the threaded holes to fix the embossing block 4 in the embossing groove 2. Next, the locating pin holes are connected to the embossing groove 2 by passing through the locating pin hole one and the locating pin hole two. Finally, the cavity of the embossing block 4 and the cavity of the template 1 are cut together by wire cutting.

[0038] The embossing block 4 has the same shape as the embossing groove 2 of the die 1. When producing high-gloss profiles, the additional embossing block 4 is fixed in the embossing groove 2 with bolts and positioning pins. The gap at the embossed surface 3 will be filled by the embossing block 4, thus avoiding poor forming and shrinkage marks on the co-extrusion surface during the start-up process. At the same time, during the mold maintenance process, the embossing block 4 can also play a good protective role for the embossed surface 3, preventing damage to the embossed surface 3 at the exit of the die 1. By adding an embossing block 4 to the die 1, it is possible to produce embossing molds and also meet the needs of producing high-gloss profiles when required. Therefore, there is no need to add an extra co-extrusion die 1, which greatly reduces the mold manufacturing cost.

[0039] Comparative example:

[0040] Please see Figure 6 An embossing adjustment device for a single-wall profile mold includes a template 1, an embossing groove 2, an embossing surface 3, an adjusting screw 5, a sliding block 6, a fixing block 7, and a pressure roller 8. This adjustment device can imprint the desired pattern on the profile surface, making the profile surface more beautiful and having a good visual effect and three-dimensionality.

[0041] In this embodiment, when it is necessary to produce high-gloss co-extruded profiles, the following should be done: Figure 6 When the adjusting screw 5, sliding block 6, fixing block 7, and pressure roller 8 are removed, the embossing groove 2 will damage the embossing surface 3 of the die template 1 after processing, resulting in poor forming of the profile and shrinkage marks on the co-extrusion surface during startup. At the same time, the die may also be damaged at the notch of the embossing surface 3 during repeated maintenance. When producing high-gloss co-extrusion profiles, additional co-extrusion die templates are required, which increases the processing and manufacturing cost of the die.

[0042] After comparing the embodiment with the comparative example, the shape of the embossing block 4 in the embodiment is consistent with the shape of the embossing groove 2 of the die 1. When producing high-gloss profiles, the additional embossing block 4 is fixed in the embossing groove 2 with bolts and positioning pins, and the gap at the embossing surface 3 will be filled by the embossing block 4. Therefore, it can avoid the phenomenon of poor forming and shrinkage marks on the co-extrusion surface during the start-up process. At the same time, during the mold maintenance process, the embossing block 4 can also play a good protective role for the embossing surface 3, preventing the embossing surface 3 at the exit of the die 1 from being damaged. By adding an embossing block 4 to the die 1, it is possible to produce embossing molds and also meet the needs of producing high-gloss profiles when needed. Therefore, it is not necessary to add an extra co-extrusion die 1, thereby greatly reducing the mold manufacturing cost.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal extrusion die embossing and co-extrusion device, characterized in that: Includes a mouth template (1) and an embossed block (4); The mouth template (1) is provided with an embossed groove (2), the embossed groove (2) is matched with the embossed block (4), and the embossed surface (3) is provided at the junction of the embossed groove (2) and the mouth template (1); When the embossed block (4) is assembled into the embossed groove (2), the embossed block (4) fills the gap in the embossed surface (3).

2. The universal extrusion die embossing and co-extrusion device according to claim 1, characterized in that: The embossed block (4) is provided with a countersunk hole and a positioning pin hole one. The bottom surface of the inner wall of the embossed groove (2) is provided with a threaded hole and a positioning pin hole two. The positioning pin hole one and the positioning pin hole two have the same diameter and are coaxial.

3. The universal extrusion die embossing co-extrusion device according to claim 2, characterized in that: The embossing groove (2) and the embossing block (4) are fixedly connected by bolts and positioning pins.

4. The universal extrusion die embossing co-extrusion device according to claim 3, characterized in that: The bolt passes through the countersunk hole and the threaded hole and is screwed together. The locating pin passes through the locating pin hole one and the locating pin hole two to connect the embossed groove (2) with the embossed block (4).

5. The universal extrusion die embossing co-extrusion device according to claim 1, characterized in that: The embossing groove (2) is processed by wire cutting, and the embossing block (4) is also processed by wire cutting.