A material outfeed device

Abstract

The utility model discloses a material out of shape device, and the equipment includes: first forming wheel roller, second forming wheel roller, drive assembly and guide component, the circumferential surface of first forming wheel roller is equipped with the concave structure of having the change profile in the axial direction and extending along the axial direction, is used for carrying out local compression and guiding to material in the material out of shape process, second forming wheel roller is the cylinder structure, is opposite to the setting of first forming wheel roller, and the out of shape channel is formed between first forming wheel roller and second forming wheel roller, drive assembly is connected with first forming wheel roller and second forming wheel roller respectively, is used for driving first forming wheel roller and second forming wheel roller rotation, and the guide component is at least partially installed in the entry side of out of shape channel, is used for guiding the material to be shaped to enter out of shape channel. Through above -mentioned setting, the structure of material out of shape equipment is reasonable, and the forming is accurate, and is applicable to the continuous processing of complex profile material.

Description

Technical Field

[0001] This utility model relates to the field of material forming equipment technology, and in particular to a material extrusion device. Background Technology

[0002] In the field of rubber material molding and processing, especially in the continuous molding process of tire treads and rubber strips, roller-type equipment is often used for pressing and extrusion. However, traditional extrusion devices mostly use simple smooth rollers, which have limited ability to guide the shape of the material and make it difficult to directly obtain complex geometric contours during the pressing process, affecting the consistency and molding quality of the products.

[0003] Meanwhile, due to the lack of targeted design in the roller structure, materials are prone to deformation or dimensional deviations when passing through the forming area, relying on manual adjustment and experience-based operation, resulting in unstable forming accuracy. In addition, for materials with multi-segment shapes or different pressing depth requirements, multiple workstations or mold changes are necessary, increasing production costs and reducing processing efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a material ejection device. This material ejection device has a reasonable structure, provides precise molding, and is suitable for the continuous processing of materials with complex contours.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A material extrusion device includes: a first forming roller, a second forming roller, a drive assembly, and a guide assembly; the first forming roller has a concave structure extending axially and having a varying profile in the axial direction on its circumferential surface, used for locally pressing and guiding the material during the material extrusion process; the second forming roller is a cylindrical structure and is arranged opposite to the first forming roller; an extrusion channel is formed between the first forming roller and the second forming roller; the drive assembly is connected to the first forming roller and the second forming roller respectively, used to drive the first forming roller and the second forming roller to rotate; the guide assembly is at least partially installed on the entrance side of the extrusion channel, used to guide the material to be formed into the extrusion channel.

[0007] Furthermore, the concave structure of the first forming roller is composed of a first groove, a second groove, and a third groove arranged sequentially along the axial direction of the first forming roller. The first groove and the third groove are V-shaped grooves, and the second groove is a rectangular groove.

[0008] Furthermore, the length L1 of the concave structure along the axial direction of the first forming roller is greater than or equal to 180 mm and less than or equal to 200 mm.

[0009] Furthermore, the first groove and the third groove respectively include inclined surfaces that are away from and close to the second groove, wherein: the length L2 of the inclined surface away from the second groove along the axial direction of the first forming roller is greater than or equal to 30 mm and less than or equal to 40 mm; the length L3 of the inclined surface close to the second groove along the axial direction of the first forming roller is greater than or equal to 20 mm and less than or equal to 30 mm; and the length L4 of the second groove along the axial direction of the first forming roller is greater than or equal to 65 mm and less than or equal to 75 mm.

[0010] Furthermore, the depth L5 of the first groove and the third groove along the radial direction of the first forming roller is greater than or equal to 1.5 mm and less than or equal to 2.5 mm, and the depth L6 of the second groove along the radial direction of the first forming roller is greater than or equal to 0.3 mm and less than or equal to 0.7 mm.

[0011] Furthermore, the length L7 of the first forming roller along the axial direction is greater than or equal to 330 mm and less than or equal to 370 mm.

[0012] Furthermore, the minimum distance L8 between the first forming roller and the second forming roller is greater than or equal to 1.8 mm and less than or equal to 2.2 mm.

[0013] Furthermore, the concave structure of the first forming roller is formed by CNC machining, EDM or laser engraving, and is subjected to heat treatment and surface treatment.

[0014] Furthermore, the material extrusion equipment also includes a cooling component located on the outlet side of the extrusion channel. The cooling component can be any one of a cooling roller, an air cooler, or a water cooling system.

[0015] The aforementioned material ejection device, by setting an axially varying concave structure on the first forming roller, allows the material to obtain a predetermined multi-segment geometric contour in one go when passing through the forming area, improving forming accuracy and reducing subsequent trimming processes. The roller structure and transmission are reasonably matched, making it suitable for continuous production, reducing operational dependence, and enhancing forming stability and automation level. The combination of the guide component and cooling structure can further ensure the geometric stability of the material entering and after forming, broadening the applicability of the equipment and the ability to control forming quality. Attached Figure Description

[0016] Figure 1 This is a right view of the material ejection device provided by this utility model;

[0017] Figure 2 This is a front view of the material forming device provided by this utility model. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 and Figure 2 As shown, this application provides a material extrusion device, including: a first forming roller, a second forming roller, a drive assembly, and a guide assembly; the first forming roller has a concave structure extending axially and having a changing profile in the axial direction on its circumferential surface, used for locally pressing and guiding the material during the material extrusion process; the second forming roller is a cylindrical structure and is arranged opposite to the first forming roller; an extrusion channel is formed between the first forming roller and the second forming roller; the drive assembly is connected to the first forming roller and the second forming roller respectively, used to drive the first forming roller and the second forming roller to rotate; the guide assembly is at least partially installed on the entrance side of the extrusion channel, used to guide the material to be formed into the extrusion channel.

[0020] In the aforementioned structure, the varied concave design of the first forming roller surface enables it to form multiple different contour segments of material in a single pass, thereby improving forming accuracy, reducing subsequent finishing processes, and enhancing overall production efficiency. Furthermore, the roller drive mechanism simplifies operation requirements, making it suitable for continuous automated production, effectively reducing reliance on manual labor and enhancing forming stability. The guide assembly ensures accurate material entry into the forming area, preventing material deviation, improving operational safety and forming consistency, and further expanding the equipment's application range.

[0021] like Figure 2 As shown, the concave structure of the first forming roller consists of a first groove, a second groove, and a third groove arranged sequentially along the axial direction of the first forming roller. The first and third grooves are V-shaped grooves, and the second groove is a rectangular groove. The combination of the V-shaped and rectangular grooves effectively distributes the stress distribution of the material during processing, improving forming stability and geometric consistency. Through reasonable segmentation design, the risk of material warping or contour distortion caused by a single groove type can be reduced, significantly improving product consistency and yield.

[0022] Specifically, the length L1 of the concave structure along the axial direction of the first forming roller is greater than or equal to 180 mm and less than or equal to 200 mm. This ensures that the material can cover the main deformation area during the forming process, while avoiding the situation where the strength of the roller structure decreases or the processing difficulty increases due to the excessive length of the groove.

[0023] The first and third grooves each include inclined surfaces that are away from and close to the second groove, respectively. Specifically: the length L2 of the inclined surface away from the second groove along the axial direction of the first forming roller is greater than or equal to 30 mm and less than or equal to 40 mm; the length L3 of the inclined surface close to the second groove along the axial direction of the first forming roller is greater than or equal to 20 mm and less than or equal to 30 mm; and the length L4 of the second groove along the axial direction of the first forming roller is greater than or equal to 65 mm and less than or equal to 75 mm. By designing the inclined surfaces of the V-groove with unequal lengths (longer on the far side and shorter on the close side), a natural transition of material from introduction to the main forming area is achieved, which helps to improve the stability of the overall forming process. The dimensional control of the second groove provides a reliable pressing space, enabling the material contour to be stably formed during the main pressing stage.

[0024] The depth L5 of the first and third grooves along the radial direction of the first forming roller is greater than or equal to 1.5 mm and less than or equal to 2.5 mm, and the depth L6 of the second groove along the radial direction of the first forming roller is greater than or equal to 0.3 mm and less than or equal to 0.7 mm. The greater depth of the V-groove enhances the material edge guidance and positioning capabilities, improving feeding accuracy; the smaller depth of the rectangular groove avoids applying excessive pressure to the material, helping to control material flatness and reduce the risk of damage. The overall depth distribution meets the structural requirements of multi-segment forming.

[0025] The length L7 of the first forming roller along the axial direction is greater than or equal to 330 mm and less than or equal to 370 mm, so as to ensure that it can meet the process requirements of wide forming, and avoid problems such as reduced mechanical rigidity or unstable transmission caused by excessive roller length.

[0026] The minimum distance L8 between the first forming roller and the second forming roller is greater than or equal to 1.8 mm and less than or equal to 2.2 mm. This allows for the adaptation of common sheet and strip materials with thicknesses up to 2 mm, achieving high-precision forming control. This distance control effectively prevents material damage due to overpressure, while ensuring consistent forming quality and improving contour reproduction rate.

[0027] Furthermore, the concave structure of the first forming roller is formed through CNC machining, EDM, or laser engraving, and undergoes heat treatment and surface treatment. By using high-precision machining processes to manufacture the concave structure, the consistency of forming complex shapes can be ensured, effectively reducing manufacturing errors and surface defects, and improving forming quality. Heat treatment strengthens the mechanical properties of the roller material and extends its service life; surface treatment further optimizes friction performance and fatigue resistance, reduces the risk of material adhesion, and improves processing efficiency.

[0028] Furthermore, the material ejection equipment also includes a cooling component located at the exit side of the ejection channel. The cooling component can be any one of a cooling roller, an air cooler, or a water cooling system. By configuring the cooling component, dimensional changes or deformations of the material caused by temperature increases after molding can be effectively prevented, thereby improving the geometric accuracy and structural stability after molding.

[0029] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A material extrusion device, characterized in that, include: The first forming roller (1) has a concave structure (3) extending axially and having a changing profile on its circumferential surface, which is used to locally press and guide the material during the material extrusion process. The second forming roller (2) has a cylindrical structure and is arranged opposite to the first forming roller (1); an exit channel is formed between the first forming roller (1) and the second forming roller (2); A drive assembly is connected to the first forming roller (1) and the second forming roller (2) respectively, and is used to drive the first forming roller (1) and the second forming roller (2) to rotate; The guide component (4) is at least partially installed on the entrance side of the exit channel to guide the material to be molded into the exit channel.

2. The material extrusion device as described in claim 1, characterized in that, The concave structure (3) of the first forming roller (1) is composed of a first groove (31), a second groove (32) and a third groove (33) arranged sequentially along the axial direction of the first forming roller (1). The first groove (31) and the third groove (33) are V-shaped grooves, and the second groove (32) is a rectangular groove.

3. The material extrusion device as described in claim 2, characterized in that, The length L1 of the concave structure (3) along the axial direction of the first forming roller (1) is greater than or equal to 180 mm and less than or equal to 200 mm.

4. The material ejection device as described in claim 2, characterized in that, The first groove (31) and the third groove (33) respectively include inclined surfaces away from and close to the second groove (32), wherein: The length L2 of the inclined surface away from the second groove (32) along the axial direction of the first forming roller (1) is greater than or equal to 30 mm and less than or equal to 40 mm; The length L3 of the inclined surface near the second groove (32) along the axial direction of the first forming roller (1) is greater than or equal to 20 mm and less than or equal to 30 mm; The length L4 of the second groove (32) along the axial direction of the first forming roller (1) is greater than or equal to 65 mm and less than or equal to 75 mm.

5. The material extrusion device as described in claim 2, characterized in that, The depth L5 of the first groove (31) and the third groove (33) along the radial direction of the first forming roller (1) is greater than or equal to 1.5 mm and less than or equal to 2.5 mm, and the depth L6 of the second groove (32) along the radial direction of the first forming roller (1) is greater than or equal to 0.3 mm and less than or equal to 0.7 mm.

6. The material ejection device as described in claim 1, characterized in that, The length L7 of the first forming roller (1) along the axial direction is greater than or equal to 330 mm and less than or equal to 370 mm.

7. The material ejection device as described in claim 1, characterized in that, The minimum distance L8 between the first forming roller (1) and the second forming roller (2) is greater than or equal to 1.8 mm and less than or equal to 2.2 mm.

8. The material ejection device as described in claim 1, characterized in that, The concave structure (3) of the first forming roller (1) is formed by CNC machining, EDM or laser engraving, and is subjected to heat treatment and surface treatment.

9. The material ejection device as described in claim 1, characterized in that, The material extrusion equipment also includes a cooling component disposed on the outlet side of the extrusion channel, wherein the cooling component is any one of a cooling roller, an air cooler, or a water cooling system.

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