Self-cleaning structure of rubber tube extrusion die

Abstract

The utility model relates to the technical field of rubber tube extrusion molding, and particularly discloses a self-cleaning structure of a rubber tube extrusion mold, which comprises a molding mold for rubber extrusion molding, two ends of the molding mold are respectively a feeding end and a discharging end, and the molding mold is used for guiding materials to enter and exit for extrusion molding; the forming die comprises at least two combined ring bodies; storage and spraying of cleaning media are integrated through the cleaning assembly, residual rubber materials on the inner side of the mold can be effectively removed, it is guaranteed that the cleaning media can be intensively and efficiently sprayed to a target area through the arrangement of the air outlet holes and the sealing blocks, and the cleaning efficiency and thoroughness are improved; through the fixing and sealing design of the combined ring body, the overall firmness and stability of the die are ensured, the safety and reliability in the production process are ensured, the parallel design of the discharge port and the heating piece enables materials to flow stably, the loss caused by unsmoothness is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber tube extrusion molding, in particular to a self-cleaning structure of a rubber tube extrusion die. Background Art

[0002] A rubber tube extrusion molding die is a device for producing rubber tubes, usually consisting of two main parts: an extruder and a die.

[0003] Extruder: The rubber raw material is extruded into a shape through heating and pressure. The screw of the extruder is responsible for heating, mixing and pushing the rubber material into the die.

[0004] Die design: The design of the die directly affects the quality and dimensions of the rubber tube. When designing, the diameter, wall thickness and length of the tube need to be considered. The die is usually made of alloy steel or other wear-resistant materials to ensure durability.

[0005] And during the extrusion process, the rubber tube needs to be quickly cooled to maintain its shape. The die is usually equipped with a cooling system that can quickly reduce the temperature through water cooling or air cooling.

[0006] After molding, the rubber material is easy to remain on the inner side of its molding die in a heated state. Once it remains and needs to be cleaned, the molding die needs to be disassembled and the inside needs to be cleaned. In this way, the cleaning efficiency becomes low and it is relatively cumbersome. Based on this, the present application provides a self-cleaning structure of a rubber tube extrusion die. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model provides a self-cleaning structure of a rubber tube extrusion die, which solves the problem that in the existing molding die during use, rubber raw materials are easy to remain inside, and when cleaning, the die needs to be disassembled and the cleaning efficiency is relatively low.

[0008] The self-cleaning structure of the rubber tube extrusion die of the utility model includes a molding die for rubber extrusion molding. The two ends of the molding die are respectively a feeding end and a discharging end, which are used to guide the material in and out for extrusion molding.

[0009] The molding die has at least two combined ring bodies. The two combined ring bodies are fixed by connecting bolts, and a heating element is inserted in the middle.

[0010] A cleaning assembly is installed in the middle of the heating element, and the cleaning assembly is located at one end close to the feeding port.

[0011] The cleaning assembly includes a storage tank. An extension arm is arranged on the outer side of the storage tank, and one or more air outlet holes are opened on the outer side of the extension arm. The air outlet holes are used to clean the inner side of the molding die.

[0012] As a further improvement of the present utility model, a connecting piece is installed inside the storage tank. A connecting rod is arranged outside the connecting piece. The connecting rod extends to the extension arm, and a sealing block corresponding to the air outlet one by one is arranged outside the connecting rod.

[0013] As a further improvement of the present utility model, one end of the sealing block close to the connecting rod is sealed with the air outlet through an elastic member.

[0014] As a further improvement of the present utility model, a through hole is opened near the middle of the outside of the storage tank, and the through hole is combined with a heating member.

[0015] As a further improvement of the present utility model, the heating member includes a sleeve. Both ends of the sleeve extend to the discharging end and the feeding end. One end of the heating member is arranged in an arc shape, and the other end is arranged in a conical shape.

[0016] As a further improvement of the present utility model, the discharging end includes a discharging port. The discharging port is parallel to one end of the sleeve forming the heating member and is sealed by a sealing cover.

[0017] As a further improvement of the present utility model, a fixed distance is maintained between the discharging port, the sleeve forming the heating member, and the sealing cover, which is convenient for the pipeline to form and discharge materials.

[0018] As a further improvement of the present utility model, the feeding end includes a feeding port. A guiding ring is arranged outside the feeding port, and the guiding ring is located inside the connecting bolt.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] In the present utility model, the cleaning component integrates the storage and spraying of the cleaning medium, and can effectively remove the residual rubber material inside the mold. The configuration of the air outlet and the sealing block ensures that the cleaning medium can be concentrated and efficiently sprayed to the target area, improving the cleaning efficiency and thoroughness;

[0021] Through the fixed and sealed design of the combined ring body, the overall firmness and stability of the mold are guaranteed, ensuring safety and reliability during the production process. The parallel design of the discharging port and the heating member makes the material flow stable, reduces the loss caused by non-smoothness, and improves the production efficiency. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1Schematic diagram of the three-dimensional structure of the forming die of the present utility model;

[0024] Figure 2 Schematic diagram of the front view structure of one end of the forming die of the present utility model;

[0025] Figure 3 Schematic diagram of the front view structure of the forming die of the present utility model;

[0026] Figure 4 Schematic diagram of the front view structure of the other end of the forming die of the present utility model;

[0027] Figure 5 For the present utility model Figure 3 Schematic diagram of the A-A sectional structure;

[0028] Figure 6 Schematic diagram of the three-dimensional structure of the cleaning assembly of the present utility model;

[0029] Figure 7 Schematic diagram of the front view structure of the cleaning assembly of the present utility model;

[0030] Figure 8 Schematic diagram of the side view structure of the cleaning assembly of the present utility model;

[0031] Figure 9 For the present utility model Figure 8 Schematic diagram of the A-A sectional structure.

[0032] In the figure: 1. Forming die; 2. Feeding end; 3. Heating element; 4. Discharging end; 5. Cleaning assembly; 11. Combined ring body; 12. Connecting bolt;

[0033] 21. Feeding port; 22. Guide ring;

[0034] 41. Discharging port; 42. Sealing cover;

[0035] 51. Storage tank; 52. Air outlet; 53. Extension arm; 54. Through hole; 55. Connecting piece; 56. Connecting rod; 57. Sealing block. Specific embodiments

[0036] The following will disclose multiple embodiments of the present utility model in the form of diagrams. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0037] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] The rubber hose extrusion molding die 1 is a device for producing rubber hoses and is usually composed of two main parts: an extruder and a die. During the extrusion process, the rubber hose needs to be quickly cooled to maintain its shape. The die is usually equipped with a cooling system that can quickly reduce the temperature through water cooling or air cooling.

[0039] After molding, when the rubber material is in a heated state, it is likely to remain on the inner side of its molding die 1. Once there is residue to be cleaned, the molding die 1 needs to be disassembled for internal cleaning. In this way, the cleaning efficiency becomes low and it is relatively cumbersome. Based on this, the present application provides a self-cleaning structure for a rubber hose extrusion die, including a molding die 1 for rubber extrusion molding. The two ends of the molding die 1 are respectively a feeding end 2 and a discharging end 4 for guiding materials in and out for extrusion molding;

[0040] The molding die 1 has at least two combined ring bodies 11. The two combined ring bodies 11 are fixed by connecting bolts 12, and a heating element 3 is inserted in the middle;

[0041] A cleaning assembly 5 is installed in the middle of the heating element 3, and the cleaning assembly 5 is located at one end close to the feeding port 21;

[0042] The cleaning assembly 5 includes a storage tank 51. An extension arm 53 is arranged on the outer side of the storage tank 51. One or more air outlets are opened on the outer side of the extension arm 53, and the air outlets are used for cleaning the inner side of the molding die 1.

[0043] The rubber hose extrusion die is composed of at least two combined ring bodies 11. Each ring body is usually made of wear-resistant and high-temperature-resistant alloy materials to ensure durability and stability in a high-temperature working environment.

[0044] The two combined ring bodies 11 are fixed by connecting bolts 12 to ensure the firmness and stability of the die. Bolt materials with corrosion resistance and high temperature resistance should be selected during design.

[0045] A heating element 3 is inserted in the middle. To ensure that the rubber material maintains appropriate fluidity and plasticity during the extrusion process, the heating element 3 is designed for uniform heating to avoid local overheating or insufficiency.

[0046] The cleaning assembly 5 is installed in the middle of the heating element 3 and is located at one end close to the feeding port 21 to ensure that residual rubber materials can be effectively cleaned during the production process.

[0047] The storage tank 51 is used to store a cleaning medium (such as a special cleaning liquid or gas), and the extended support arm 53 provided on its outer side can provide necessary support to prevent it from shaking easily during operation.

[0048] One or more air outlets opened on the outer side of the extended support arm 53 can spray the cleaning medium onto the inner side of the forming die 1, which can effectively remove the residual rubber material. The number and size of the air outlets need to be designed according to the size and shape of the die cavity to optimize and provide a uniform and effective cleaning effect.

[0049] After each cycle of the production process, the user can start the cleaning component 5. The cleaning medium in the storage tank 51 is sprayed out through the air outlets to wash and clean the inner side of the die. During this process, the cleaning will not interfere with the normal use of the die and will not affect the production.

[0050] After introducing the self-cleaning structure, the cleaning of residues during the production process becomes simpler and faster, saving the time and effort of manual disassembly of the die.

[0051] Through the automated cleaning process, the die can quickly resume production, improve the continuous working efficiency of the production line, and reduce the downtime required for cleaning.

[0052] Regular cleaning can effectively prevent the accumulation of rubber materials from wearing the die, extend the service life of the die, reduce the replacement frequency and cost, ensure the cleanliness of the inner wall of the die, thereby preventing unqualified products in the production of rubber tubes, and improving the consistency and quality of the products.

[0053] A connecting piece 55 is installed inside the storage tank 51. A connecting rod 56 is provided on the outer side of the connecting piece 55. The connecting rod 56 extends to the extended support arm 53, and a sealing block 57 corresponding to the air outlet one by one is provided on the outer side of the connecting rod.

[0054] One end of the sealing block 57 close to the connecting rod 56 is sealed with the air outlet 52 through an elastic member.

[0055] A connecting piece 55 is installed inside the storage tank 51 to facilitate the efficient transmission of the cleaning medium between the storage tank 51 and the cleaning component 5. The design of the connecting piece 55 should ensure strength and durability and can withstand the pressure of the cleaning medium.

[0056] The connecting rod 56 is connected to the storage tank 51 through the connecting piece 55 and extends to the extended support arm 53. When designing, the connecting rod 56 should have a certain rigidity and flexibility to adjust the direction and position during the cleaning process.

[0057] The sealing block 57 is arranged on the outer side of the connecting rod 56 and corresponds to the air outlet holes one by one. This design can ensure that there is no leakage or air backflow when the cleaning medium is discharged from the storage tank 51, guaranteeing the effective spraying of the cleaning medium.

[0058] One end of the sealing block 57 close to the connecting rod 56 is sealed with the air outlet hole through an elastic member. The elastic member can automatically adjust its shape according to the pressure and flow of the cleaning medium to ensure the sealing performance. When the cleaning medium is sprayed, the elastic member can be compressed, increasing the contact between the sealing block 57 and the air outlet hole, thereby enhancing the sealing effect. Generally, a spring is selected;

[0059] When preparing for automatic cleaning, first, the cleaning medium in the storage tank 51 is started through the control system. The connecting member 55 sends the medium to the connecting rod 56, and then it is sprayed out from the air outlet hole. The design of the sealing block 57 ensures that the cleaning medium is sprayed onto the inner side of the mold concentratedly and efficiently for cleaning.

[0060] Through the combined design of the sealing block 57 and the elastic member, it is ensured that there is no leakage of the cleaning medium during the spraying process, improving the cleaning efficiency.

[0061] The design of the one-to-one correspondence between the sealing block 57 and the air outlet holes enables the cleaning medium to be accurately sprayed onto the target area, ensuring the thorough cleaning of residues.

[0062] A through hole 54 is opened at a position close to the middle on the outer side of the storage tank 51, and the through hole 54 is combined with the heating member 3.

[0063] The heating member 3 includes a sleeve. Both ends of the sleeve extend to the discharging end 4 and the feeding end 2. One end of the heating member 3 is arranged in an arc shape, and the other end is arranged in a conical shape.

[0064] A through hole 54 is opened at a position close to the middle on the outer side of the storage tank 51, aiming to enable the cleaning medium to be smoothly transferred to the heating member 3. During the design, the position of the through hole 54 needs to be precise to ensure that there is no blockage after the medium enters the heating member 3.

[0065] The diameter of the through hole 54 should be designed according to the flow rate of the cleaning medium used, ensuring both smoothness and avoiding excessive size resulting in medium loss.

[0066] The heating member 3 is composed of a sleeve. Inside the sleeve, a flowing heating medium, such as oil, water, etc., can be provided when shaping is required, providing heating guarantee for the rubber tube shaping. After the production cycle ends, the heating medium is led out, and at this time, the internal flowing cleaning medium is present. After the rubber tube extrusion is completed, these cleaning media can improve the cleaning effect when pressurized and sprayed.

[0067] Both ends of the sleeve extend to the discharge end 4 and the feed end 2 respectively, so that the temperature consistency can be maintained during the whole cleaning and production process, ensuring that the rubber material is easier to form under the heating state.

[0068] The discharge end 4 includes a discharge port 41, and the discharge port 41 is parallel to one end of the sleeve forming the heating element 3 and is sealed by a sealing cover 42.

[0069] A fixed distance is maintained between the discharge port 41, the sleeve forming the heating element 3 and the sealing cover 42, which is convenient for the pipe to be formed and discharged.

[0070] The feed end 2 includes a feed port 21, and a material guiding ring 22 is arranged outside the feed port 21, and the material guiding ring 22 is located inside the connecting bolt 12.

[0071] The discharge end 4 is provided with a discharge port 41, and the discharge port 41 is parallel to one end of the sleeve forming the heating element 3 and is sealed by a sealing cover 42. This parallel design can ensure the stability and smoothness of the discharge and prevent the splashing or leakage of materials.

[0072] The sealing cover 42 not only prevents the leakage of the cleaning medium, but also can maintain the internal pressure during cleaning, improving the cleaning effect. The sealing material should be selected from high-temperature resistant and wear-resistant materials to improve its durability.

[0073] A fixed distance is maintained between the discharge port 41, the sleeve and the sealing cover 42, which can effectively avoid blockage during the extrusion process and ensure the smooth forming and discharging of the rubber tube. At the same time, this design facilitates the cleaning and maintenance of the discharge port 41.

[0074] The feed end 2 is provided with a feed port 21, and the design should ensure that the rubber raw material can smoothly enter the mold to avoid blockage.

[0075] The material guiding ring 22 is located outside the feed port 21 and inside the connecting bolt 12. The function of the material guiding ring 22 is to guide the rubber raw material to enter the mold evenly, avoiding local accumulation and thus improving the production efficiency.

[0076] The material guiding ring 22 must be made of high-temperature resistant and wear-resistant materials to ensure its stability and durability during long-term operation.

[0077] During the extrusion process, the rubber raw material enters the mold through the feed port 21 and is guided by the material guiding ring 22 to ensure the even distribution of the materials. After the materials are heated in the heating element 3, they flow out through the discharge port 41 in a stable form. The design of the sealing cover 42 avoids the leakage of materials. At the same time, the setting of the fixed distance ensures the smoothness of the extrusion process.

[0078] The design that the discharge port 41 is parallel to the heating element 3 provides a stable discharge path, improves the production efficiency of the rubber tube, and reduces the losses caused by unsmooth discharge of materials.

[0079] The sealing cover 42 effectively prevents the leakage of materials and cleaning media, maintains the internal pressure, helps to better remove residues during cleaning, and improves the overall cleaning effect.

[0080] The fixed spacing between the discharge port 41 and the heating element 3 reduces the risk of blockage caused by material accumulation, thus ensuring the smooth progress of the continuous production process.

[0081] The design of the material guiding ring 22 improves the fluidity of the feed port 21, ensures that the rubber raw materials enter the mold evenly, and avoids the decrease in production efficiency caused by material accumulation.

[0082] Maintaining the fixed spacing and the sealing design makes the cleaning and maintenance processes of the discharge end 4 and the feed end 2 more convenient, reduces the cleaning workload, and improves the overall efficiency of the production line.

[0083] The above are only the embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. Self-cleaning structure of rubber tube extrusion die, including a forming die (1) for rubber extrusion molding. Both ends of the forming die (1) are respectively a feeding end (2) and a discharging end (4), which are used to guide materials in and out for extrusion molding; It is characterized in that: The forming die (1) has at least two combined ring bodies (11). The two combined ring bodies (11) are fixed by connecting bolts (12), and a heating element (3) is inserted in the middle; A cleaning assembly (5) is installed in the middle of the heating element (3), and the cleaning assembly (5) is located at one end close to the feeding port (21); The cleaning assembly (5) includes a storage tank (51). An extension arm (53) is arranged on the outer side of the storage tank (51). One or more air outlet holes are opened on the outer side of the extension arm (53), and the air outlet holes are used to clean the inner side of the forming die (1).

2. The self-cleaning structure of the rubber tube extrusion die according to claim 1, characterized in that: A connecting piece (55) is installed inside the storage tank (51). A connecting rod (56) is arranged on the outer side of the connecting piece (55). The connecting rod (56) extends to the extension arm (53), and a sealing block (57) corresponding to the air outlet hole one by one is arranged on the outer side of the connecting rod.

3. The self-cleaning structure of the rubber tube extrusion die according to claim 2, characterized in that: One end of the sealing block (57) close to the connecting rod (56) is sealed with the air outlet (52) through an elastic member.

4. The self-cleaning structure of the rubber tube extrusion die according to claim 1, characterized in that: A through hole (54) is opened near the middle on the outer side of the storage tank (51), and the through hole (54) is combined with the heating element (3).

5. The self-cleaning structure of the rubber tube extrusion die according to claim 1, characterized in that: The heating element (3) includes a sleeve. Both ends of the sleeve extend to the discharging end (4) and the feeding end (2). One end of the heating element (3) is arranged in an arc shape, and the other end is arranged in a conical shape.

6. The self-cleaning structure of the rubber tube extrusion die according to claim 1, wherein: The discharging end (4) includes a discharging port (41). The discharging port (41) is parallel to one end of the sleeve forming the heating element (3) and is sealed by a sealing cover (42).

7. The self-cleaning structure of the rubber tube extrusion die according to claim 6, characterized in that: A fixed distance is maintained between the discharging port (41), the sleeve forming the heating element (3), and the sealing cover (42) to facilitate the forming and discharging of the pipeline.

8. The self-cleaning structure of the rubber tube extrusion die according to claim 1, characterized in that: The feeding end (2) includes a feeding port (21). A guiding ring (22) is arranged on the outer side of the feeding port (21), and the guiding ring (22) is located inside the connecting bolt (12).

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