Spiral continuous gasket extrusion device

Abstract

The utility model discloses a spiral continuous gasket extrusion device which comprises a first support and a second support, the first support is downwards obliquely provided with a cooling groove, the upper end of the cooling groove is provided with a feeding port, the lower end of the cooling groove is provided with a discharging port, the feeding port is provided with a flat extrusion nozzle, and the cooling groove is filled with cooling liquid; a shaping mold is fixedly arranged at the bottom of the cooling tank, a curved inner cavity with a preset size is formed in the shaping mold, a plurality of groups of transverse positioning wheel assemblies are arranged at the bottom of the cooling tank, a longitudinal positioning wheel assembly is arranged at the discharging port, and a servo crawler traction assembly is arranged on the second support in a downward inclined mode; and the servo crawler traction assembly is arranged at the downstream of the cooling tank. The mold is simple in structure, easy to assemble, simple and convenient to operate and low in mold input cost, the requirement for an injection molding machine is lowered, a product is not provided with a notch, the inner circle is smooth and complete, leftover waste is not generated in the production process, and materials are saved.

Description

Technical Field

[0001] This utility model relates to a processing equipment for spiral continuous washers. Background Technology

[0002] A spiral elastic retaining ring is a component used for axial positioning. It needs to have good corrosion resistance, high and low temperature resistance, pressure resistance, resilience, and toughness. Spiral elastic retaining rings are manufactured through extrusion molding. For example, utility model patent application number CN202320339885.2 provides a silicone gasket extrusion molding device, which includes an extruder and a pre-cooling mechanism. The extruder includes a base plate, an extruder barrel, and a discharge barrel. The pre-cooling mechanism includes a conveyor belt and a cooling mechanism. The conveyor belt has an arc-shaped groove around its periphery. The output end of the discharge barrel leads to the input end of the arc-shaped groove. The cooling mechanism is used to cool and reduce the temperature of the product conveyed on the arc-shaped groove. In the extruder barrel, silicone raw material is pressurized by the screw and shaped into a silicone tube on the discharge cylinder, which is then extruded from the output end of the discharge cylinder. The silicone tube lies flat on an arc-shaped support and is conveyed forward by a conveyor belt. As the silicone tube is conveyed on the conveyor belt, a cooling mechanism provides initial cooling to solidify the surface and maintain a straight shape. After initial cooling, the silicone tube enters a cooling tank for overall cooling and molding. This type of device can only produce horizontal silicone gaskets; therefore, a redesign is needed to produce spiral continuous gaskets. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a high-performance and reliable spiral continuous gasket extrusion device.

[0004] To achieve the above objectives, this utility model provides a spiral continuous washer extrusion device, including a first support and a second support. The first support is provided with a cooling tank at a downward inclination. The upper end of the cooling tank has an inlet and the lower end has an outlet. The inlet is provided with a flat extrusion nozzle. The cooling tank is filled with coolant. A shaping mold is fixedly provided at the bottom of the cooling tank. The shaping mold has a curved inner cavity of a predetermined size. Multiple sets of transverse positioning wheel assemblies are provided at the bottom of the cooling tank. A longitudinal positioning wheel assembly is provided at the outlet. A servo track traction assembly is provided at a downward inclination on the second support. The servo track traction assembly is located downstream of the cooling tank. The extrusion nozzle extrudes a flat strip from the inlet and enters the curved inner cavity of the shaping mold in the cooling tank for cooling and shaping. After being positioned by the transverse positioning wheel assembly and the longitudinal positioning wheel assembly, the formed strip is discharged by the servo track traction assembly along the tangential direction of the formed strip to form a spiral shape.

[0005] Preferably, the curved inner cavity of the shaping mold has an enlarged inlet.

[0006] Preferably, it includes a series of replaceable shaping molds mounted on the bottom of the cooling tank, each shaping mold having a curved inner cavity with a predetermined curvature.

[0007] Preferably, the lateral positioning wheel assembly includes a plurality of first rollers disposed at the bottom of the cooling tank, each of the first rollers being configured to be laterally adjustable to form a lateral positioning channel for the strip that matches a predetermined arc of the curved inner cavity of the shaping mold.

[0008] Preferably, the longitudinal positioning wheel assembly includes a pair of second rollers configured to be longitudinally adjustable to form a longitudinal positioning channel for the strip that matches a predetermined thickness of the curved inner cavity of the shaping mold.

[0009] Preferably, the cooling tank has an inlet platform at its inlet, and the extrusion nozzle is located above the inlet platform; the cooling tank has an outlet platform at its outlet, and the longitudinal positioning wheel assembly is located above the outlet platform.

[0010] Preferably, the feeding platform is provided with a water inlet, the discharging platform is provided with a water outlet, and a sunken coolant receiving cavity is formed between the feeding platform and the discharging platform.

[0011] Preferably, the feeding platform and the discharging platform are each equipped with waterproof foam.

[0012] Preferably, the heights of the first and second supports are adjustable.

[0013] Preferably, the inlet angle of the servo track traction assembly is adjustable.

[0014] This utility model has a simple structure, is easy to assemble and operate, has low mold investment costs, reduces the requirements for injection molding machines, produces products without gaps, with smooth and complete inner circles, and does not generate edge waste during the production process, thus saving materials. Attached Figure Description

[0015] Appendix Figure 1 This is a perspective view of the spiral continuous washer extrusion device of this utility model;

[0016] Appendix Figure 2 This is a top view of the spiral continuous washer extrusion device of this utility model;

[0017] Appendix Figure 3 This is a partially enlarged schematic diagram of the spiral continuous washer extrusion device of this utility model. Detailed Implementation

[0018] In the following description, the terminology used in the specification will be briefly described, and embodiments will be described in detail. All terms used herein, including descriptive or technical terms, should be interpreted as having the meaning understood by one of ordinary skill in the art. However, these terms may have different meanings depending on the intent of one of ordinary skill in the art, precedent, or the emergence of new technologies.

[0019] Furthermore, some terms may be chosen by the applicant, and in such cases, the meaning of the chosen terms will be described in detail in the detailed description of the embodiments. Therefore, the terms used herein must be defined based on their meanings in conjunction with the description throughout the specification. Additionally, when a component “comprises” or “contains” an element, the component may also include other elements without excluding them, unless there is a specific description to the contrary. In the following description, terms such as “component” and “module” indicate a unit for performing at least one function or operation, wherein units and modules may be implemented as hardware or software or by combining hardware and software.

[0020] Embodiments will now be described more fully with reference to the accompanying drawings. However, embodiments may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the embodiments to those skilled in the art. In the following description, well-known functions or structures are not described in detail, as they would obscure the embodiments with unnecessary detail, and throughout the specification, the same reference numerals in the drawings denote the same or similar elements.

[0021] The spiral continuous gasket extrusion unit is a general-purpose, non-standard automated equipment developed in-house. It is primarily used in the processing of sealing gaskets for hydrogen production in alkaline electrolyzers. The spiral continuous gasket extruder is used in conjunction with other automated terminal equipment. Its main function is to automatically adjust the diameter of the continuous gasket in conjunction with other automated terminal equipment. The spiral continuous gasket extruder supports a maximum outer diameter of 2000mm and a minimum outer diameter of 400mm. It mainly consists of the following mechanisms and electrical components: The mechanical part mainly includes the die head forming mold, the forming mold in the cooling tank, the guide wheel assembly, the servo track traction assembly, the waterproof foam, and the cooling tank; the electrical part mainly includes the electrical control cabinet (control circuit, consisting of PLC, relays, frequency converters, etc.) and the motor (the synchronous pulley of the motor, through the die head forming mold, fixes the gasket position and drives the guide wheel to adjust the gasket diameter and collect the material downwards).

[0022] See appendix Figure 1 and 2 As shown, attached Figure 1 This is a perspective view of the spiral continuous washer extrusion device of this utility model; attached. Figure 2A top view of the spiral continuous washer extrusion device of this utility model. The spiral continuous washer extrusion device includes a first support 1 and a second support 2, the heights of the first support 1 and the second support 2 are adjustable. The first support 1 is inclined downwards and has a cooling tank 3. The upper end of the cooling tank 3 has a feed port and the lower end has a discharge port. The feed port is provided with a flat extrusion nozzle 4. The cooling tank 3 is filled with coolant. A shaping mold 5 is fixedly provided at the bottom of the cooling tank 3. The shaping mold 5 has a curved inner cavity of a predetermined size. Multiple sets of transverse positioning wheel assemblies 6 are provided at the bottom of the cooling tank 3. A longitudinal positioning wheel assembly 7 is provided at the discharge port. The second support 2 is inclined downwards and has a servo track traction assembly 8, which is located downstream of the cooling tank 3. The extrusion nozzle 4 extrudes a flat strip from the feed port and enters the curved inner cavity of the shaping mold 4 in the cooling tank 3 for cooling and shaping. After being positioned by the transverse positioning wheel assembly 6 and the longitudinal positioning wheel assembly 7, the strip is discharged by the servo track traction assembly 8 along the tangential direction of the strip to form a spiral shape.

[0023] The lateral positioning wheel assembly 6 includes multiple first rollers disposed at the bottom of the cooling tank 3. Each first roller is configured to be laterally adjustable to form a lateral positioning channel for the material strip that matches a predetermined arc of the curved inner cavity of the forming mold 5. The function of the lateral positioning wheel assembly 6 is to calibrate and guide the position and angle of the continuous gasket, allowing the sealing gasket to enter the servo track traction assembly along the guide wheel assembly. The longitudinal positioning wheel assembly 7 includes a pair of second rollers configured to be longitudinally adjustable to form a longitudinal positioning channel for the material strip that matches a predetermined thickness of the curved inner cavity of the forming mold 5. The entry angle of the servo track traction assembly 8 is adjustable, thereby controlling the center arc of the centered continuous gasket by traction guide wheels.

[0024] A feeding platform 9 is provided at the inlet of the cooling tank 3, with the extrusion nozzle 4 located above the inlet platform 9; a discharge platform 10 is provided at the outlet of the cooling tank 3, with the longitudinal positioning wheel assembly 7 located above the discharge platform 10. A water inlet 11 is provided at the feeding platform 9, and a water outlet 12 is provided at the discharge platform 10, forming a recessed coolant receiving cavity between the feeding platform 9 and the discharge platform 10. Water-resistant foam 13 is provided at both the feeding platform 9 and the discharge platform 10 to prevent water from entering the cooling tank. Extruding the product through the mold allows it to be completely immersed in the cooling tank for temperature control, contributing to the production of products with precise dimensions and stable quality. Maintaining pressure balance through the balancing system pressure equipment helps reduce equipment failures and improve production efficiency. Regular cleaning and replacement of the cooling water helps maintain a hygienic production environment.

[0025] Appendix Figure 3A partially enlarged schematic diagram of the spiral continuous gasket extrusion device of this utility model shows that it includes a series of replaceable shaping molds 5 installed at the bottom of the cooling tank 3, each shaping mold 5 having a curved inner cavity with a predetermined curvature. The position of the sealing gasket within the cooling tank is fixed, and the diameter of the continuous gasket is controlled by moving the position of the shaping mold within the cooling tank. The curved inner cavity of the shaping mold 5 has an enlarged inlet.

[0026] This device primarily addresses the compatibility issues between production equipment and injection molding machines, and effectively adjusts the diameter of the continuous spiral washer, thereby simplifying the production process, reducing production costs, and maximizing economic benefits. It also reduces mold investment costs and lowers the requirements for the injection molding machine. Furthermore, due to precise positioning at each stage, the final product exhibits the following advantages:

[0027] 1. No gaps - the shape is a continuous circle, ensuring full contact with the assembly;

[0028] 2. The inner circle is smooth and complete, does not interfere with mating parts, and has no burrs on the inner and outer diameters, making it easy to disassemble and assemble;

[0029] 3. No scrap or waste is generated during the production process, saving materials;

[0030] 4. Short production cycle; by changing the material thickness and number of coils, it is easy to make light-load, medium-load, and heavy-load types.

[0031] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects within each embodiment should generally be considered applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope defined by the appended claims.

Claims

1. A helical continuous grommet extrusion apparatus characterized by, The application relates to a cooling device for cooling extruded flat material belts, comprising a first support (1) and a second support (2), wherein the first support (1) is provided with a cooling groove (3) which is inclined downward, the upper end of the cooling groove (3) is provided with an inlet, the lower end of the cooling groove (3) is provided with an outlet, the inlet is provided with an extrusion nozzle (4) in a flat shape, the cooling groove (3) is filled with cooling liquid, the bottom of the cooling groove (3) is fixedly provided with a shaping die (5), the shaping die (5) is internally provided with a curved cavity with a predetermined size, the bottom of the cooling groove (3) is provided with a plurality of transverse positioning wheel assemblies (6), the outlet is provided with a longitudinal positioning wheel assembly (7), the second support (2) is provided with a servo track traction assembly (8) which is inclined downward and is arranged downstream of the cooling groove (3), wherein the extrusion nozzle (4) extrudes a flat material belt from the inlet into the curved cavity of the shaping die (5) in the cooling groove (3) to be cooled and shaped, the shaped material belt is sequentially positioned by the transverse positioning wheel assemblies (6) and the longitudinal positioning wheel assembly (7), and is discharged by the servo track traction assembly (8) along the tangent direction of the shaped material belt to form a spiral shape.

2. The helical continuous grommet extrusion apparatus of claim 1, wherein: The curved cavity of the shaping die (5) has an enlarged inlet.

3. The helical continuous grommet extrusion apparatus of claim 1, wherein: The application further relates to a series of replaceable shaping dies (5) which are arranged at the bottom of the cooling groove (3), and the curved cavity of each shaping die (5) has a predetermined curvature.

4. The helical continuous grommet extrusion apparatus of claim 3, wherein: The transverse positioning wheel assembly (6) comprises a plurality of first rollers which are arranged at the bottom of the cooling groove (3) and are configured to be adjusted in the transverse direction to form a material belt transverse positioning channel which matches the predetermined curvature of the curved cavity of the shaping die (5).

5. The helical continuous grommet extrusion apparatus of claim 3, wherein: The longitudinal positioning wheel assembly (7) comprises a pair of second rollers which are configured to be adjusted in the longitudinal direction to form a material belt longitudinal positioning channel which matches the predetermined thickness of the curved cavity of the shaping die (5).

6. The helical continuous grommet extrusion apparatus of claim 1, wherein: The inlet of the cooling groove (3) is provided with an inlet platform (9), and the extrusion nozzle (4) is arranged above the inlet platform (9); the outlet of the cooling groove (3) is provided with an outlet platform (10), and the longitudinal positioning wheel assembly (7) is arranged above the outlet platform (10).

7. The helical continuous grommet extrusion apparatus of claim 6, wherein: The inlet platform (9) is provided with a water inlet (11), the outlet platform (10) is provided with a water outlet (12), and a sunken cooling liquid containing cavity is formed between the inlet platform (9) and the outlet platform (10).

8. The helical continuous grommet extrusion apparatus of claim 6, wherein: The inlet platform (9) and the outlet platform (10) are respectively provided with waterproof foam (13).

9. The helical continuous grommet extrusion apparatus of claim 1, wherein: The heights of the first support (1) and the second support (2) are adjustable.

10. The helical continuous grommet extrusion apparatus of claim 1, wherein: The inlet angle of the servo track traction assembly (8) is adjustable.

Images