Extruder rubber discharge port heating device
By installing a heating box and a telescopic plate at the extruder head to heat the discharge port, the problem of the rubber material not being able to be discharged smoothly was solved, thus achieving smooth discharge of the rubber material and improving production efficiency.
Patent Information
- Application Number
- CN202520337513.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The rubber compound inside the die head of the existing extruder cannot be completely discharged. When production stops, the rubber compound cools down, making it difficult to discharge smoothly when production resumes, which affects production efficiency.
Design a heating device for the discharge port of an extruder, including a heating box fitted at the die head, which contains a heating plate and a telescopic plate. The heating maintains the temperature of the rubber compound, ensuring smooth discharge of the rubber compound, and the telescopic plate improves the sealing to reduce heat loss.
This allows for smooth discharge of the adhesive material, reduces the frequency of disassembling the machine head, improves production efficiency and insulation effect, and enhances overall production efficiency.
Smart Images

Figure CN223790986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder head heating technology, and in particular to an extruder discharge port heating device. Background Technology
[0002] The principle of steel wire coiling machine is to discharge glue outward through extruder, so that the surface of steel wire is coated with glue to form steel wire tape, which is then wound into steel wire coils of different sizes on forming reel. Whether the glue can be discharged smoothly from the glue discharge port of extruder is related to whether steel wire tape is formed, which is an important step in the formation of steel wire coil.
[0003] For example, a patent with publication number CN2654331Y, entitled "A Steel Wire Extrusion Coating Head," was published on November 10, 2004. It includes at least a left head and a right head; the left and right heads are connected to form a head body, with a rubber inlet at one end; a steel wire inlet on one side of the head body and a steel wire and rubber outlet on the other side; a coating flow channel connecting the rubber inlet and outlet is provided longitudinally between the left and right heads on the upper and lower sides of the steel wire and rubber outlet; this utility model can increase the width of the steel wire arrangement to improve the production efficiency of extrusion coating; however, the applicant found that the rubber material between the head end and the discharge port in the extruder cannot be completely discharged. When the extruder stops, the rubber material easily cools down, causing it to be unable to be discharged smoothly during subsequent production. The usual measure is to completely disassemble the head and dig out the rubber material, a process that is time-consuming and has low production efficiency. Summary of the Invention
[0004] In view of this, the purpose of this utility model is to propose a heating device for the discharge port of an extruder to solve the problem of low production efficiency.
[0005] To achieve the above objectives, this utility model provides a heating device for the discharge port of an extruder, including a heating box that is open on one side and fitted onto the die head of the extruder. The inner sidewalls of the heating box are provided with heating plates, and both sides of the open end of the heating box are provided with closing members. The closing members include multiple multi-section telescopic plates arranged at equal intervals, with the sidewalls of two adjacent multi-section telescopic plates in contact with each other vertically.
[0006] Optionally, the outer surface of the heating box is provided with heat-insulating cotton.
[0007] Optionally, the telescopic ends of the multi-section telescopic plates are connected to anti-scalding pads.
[0008] Optionally, the heat-resistant pad is filled with an elastic core.
[0009] Optionally, the heating plate is an electric heating plate, the electric heating plate is provided with an electric heating wire, and the heating box is provided with a current regulator that is electrically connected to the electric heating wire.
[0010] Optionally, the heating box is provided with a handrail, and the handrail is provided with a heat insulation layer and an anti-scalding layer.
[0011] Optionally, the two heating plates on adjacent sides are connected by a heat transfer plate.
[0012] Optionally, a movable folding rod is connected to the outside of the heating box.
[0013] The beneficial effects of this utility model are as follows: This utility model provides a heating device for the discharge port of an extruder. The heating box is fitted onto the extruder head. The heating plate heats the material inside the extruder head to ensure that the material is kept at a specific temperature, preventing it from cooling down and allowing it to be discharged smoothly. At the same time, it reduces the frequency of disassembling and damaging the extruder head. The extruder head enters the heating box through the opening. The multi-section telescopic plates on both sides of the opening extend to improve the sealing of the opening of the heating box, reduce the loss of high-temperature airflow inside the heating box through the opening, improve the heat preservation effect, and increase production efficiency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the heating box of this utility model;
[0017] Figure 3 This is a schematic diagram of the open opening of the heating box of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the multi-section telescopic plate of this utility model;
[0019] Figure 5 This is a schematic diagram of the connection structure between the heating plate and the heat transfer plate of this utility model.
[0020] In the picture: 1. Heating box; 2. Heating plate; 3. Heat transfer plate; 4. Insulation cotton; 5. Moving folding rod; 6. Multi-section telescopic plate; 7. Elastic pad core; 8. Anti-scalding pad. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0023] like Figures 1 to 5 As shown, a heating device for the discharge port of an extruder includes a heating box 1 that is open on one side and fitted onto the die head of the extruder. Each inner side wall of the heating box 1 is provided with a heating plate 2, and there are five heating plates 2. Cast aluminum heating plates 2 are installed inside the five surfaces of the heating box 1. Closing elements are provided on both sides of the open opening of the heating box 1. Each closing element includes multiple multi-section telescopic plates 6 arranged at equal intervals. The side walls of two adjacent multi-section telescopic plates 6 are in contact with each other vertically.
[0024] The heating box 1 is fitted onto the extruder head. The heating plate 2 heats the material inside the extruder head to ensure a specific temperature, preventing the material from cooling down and allowing it to be discharged smoothly. This also reduces the frequency of disassembling and damaging the extruder head, and improves the production efficiency of the wire rings. The material enters the heating box 1 through the open opening of the extruder head. The multi-section telescopic plates 6 on both sides of the open opening extend, and the telescopic ends of the multi-section telescopic plates 6 on the left and right sides of the extruder head abut against the outer wall of the extruder head. Among the multi-section telescopic plates 6 on the upper and lower parts of the extruder head, the telescopic end of one of the closing parts abuts against the telescopic end of the other closing part, which helps to improve the sealing of the opening of the heating box 1, reduces the loss of high-temperature airflow inside the heating box 1 through the opening, improves the heat preservation effect, and increases production efficiency.
[0025] To facilitate heat preservation, the outer surface of the heating box 1 is provided with heat insulation cotton 4, which is 2.5cm PE heat insulation cotton 4, to reduce heat loss inside the heating box 1 and improve the heating effect of the heating box 1.
[0026] The telescopic ends of the multi-section telescopic plate 6 are connected to anti-scalding pads 8 for easy anti-scalding treatment.
[0027] The anti-scalding pad 8 is filled with an elastic core 7, which facilitates elastic contact when the two anti-scalding pads 8 come into contact with each other or with the extruder head, reducing the impact on the multi-section telescopic plate 6 and the extruder head. In addition, it also helps to improve the sealing of the opening of the heating box 1, reducing the loss of high-temperature airflow in the heating box 1 through the opening and improving the heat preservation effect.
[0028] The heating plate 2 is an electric heating plate, and the material of the heating plate 2 can be cast aluminum. The electric heating plate is provided with an electric heating wire. The heating box 1 is provided with a current regulator that is electrically connected to the electric heating wire. The current regulator can change the current in order to control the temperature of the heating plate 2. In actual use, the temperature of the heating plate 2 can be changed according to the required heating time, thereby improving production efficiency.
[0029] The heating box 1 is equipped with a handrail, which facilitates the operator to move the heating box 1. The handrail is equipped with an insulation layer and an anti-scalding layer.
[0030] The two heating plates 2 on adjacent sides are connected by a bent heat transfer plate 3, which facilitates the heat transfer between the two heating plates 2 on adjacent sides and makes the temperature inside the heating box 1 more uniform.
[0031] The heating box 1 is externally connected to a movable folding rod 5, which allows the position of the heating box 1 to be adjusted by moving the folding rod 5, thereby providing better heating to the extruder head and ensuring the required temperature at the discharge port of the extruder head. This facilitates the normal discharge of the rubber material and prevents the rubber material from hardening and becoming unable to be discharged due to low temperature at the discharge port. The position of the heating box 1 can be moved as needed for convenient use.
[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0033] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A heating device for the discharge port of an extruder, characterized in that, The device includes a heating box (1) that is open on one side of the extruder head. The inner sidewall of the heating box (1) is provided with heating plates (2). Both sides of the opening of the heating box (1) are provided with closing members. The closing members include multiple multi-section telescopic plates (6) arranged at equal intervals. The sidewalls of two adjacent multi-section telescopic plates (6) are in contact with each other.
2. The extruder discharge port heating device according to claim 1, characterized in that, The outer surface of the heating box (1) is provided with heat insulation cotton (4).
3. The extruder discharge port heating device according to claim 1, characterized in that, The telescopic ends of the multi-section telescopic plate (6) are connected to anti-scalding pads (8).
4. The extruder discharge port heating device according to claim 3, characterized in that, The heat-resistant pad (8) is filled with an elastic core (7).
5. The extruder discharge port heating device according to claim 1, characterized in that, The heating plate (2) is an electric heating plate, and an electric heating wire is provided on the electric heating plate. The heating box (1) is provided with a current regulator that is electrically connected to the electric heating wire.
6. The extruder discharge port heating device according to claim 1, characterized in that, The heating box (1) is provided with a handrail, and the handrail is provided with a heat insulation layer and an anti-scalding layer.
7. The extruder discharge port heating device according to claim 1, characterized in that, The two heating plates (2) on adjacent sides are connected by a heat transfer plate (3).
8. The extruder discharge port heating device according to claim 1, characterized in that, The heating box (1) is externally connected to a movable folding rod (5).
Citation Information
Patent Citations
Steel wire extrusion and glue covering machine head
CN2654331Y