PVC plastic hose extrusion molding device

By designing a PVC hose forming device that includes extrusion, feeding, cooling, filtering, and shaping mechanisms, the problems of hose cooling and shaping are solved, achieving efficient cooling and shaping, and improving hose quality and adaptability.

CN223545743UActive Publication Date: 2025-11-14ZHONGSHAN JUNTAIYE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423190125.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-14
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Existing PVC hoses require cooling after extrusion molding and are prone to deformation, and it is not convenient to reshape hoses of different diameters.

Method used

An apparatus was designed that includes extrusion, feeding, cooling, filtering and shaping mechanisms. The extrusion mechanism forms the material, the cooling mechanism cools it, the filtering mechanism filters it, and the shaping mechanism shapes it. The installation mechanism facilitates the replacement of the shaping mechanism to accommodate hoses of different diameters.

Benefits of technology

It achieves efficient cooling and shaping of the hose, prevents deformation, improves the quality and practicality of the hose, and adapts to the needs of hoses of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) plastic hose extrusion molding, in particular to a PVC plastic hose extrusion molding device which is convenient for shaping hoses with different diameters after molding, prevents the hoses from deforming and improves the practicability. Comprising an extrusion mechanism; the device further comprises a feeding mechanism, a cooling mechanism, a filtering mechanism, a shaping mechanism and a mounting mechanism, the feeding mechanism is mounted on the extrusion mechanism, the cooling mechanism is mounted on the extrusion mechanism, the filtering mechanism is mounted on the cooling mechanism, the shaping mechanism is mounted on the cooling mechanism, and the mounting mechanism is mounted on the shaping mechanism. The feeding mechanism is used for conveniently stirring raw materials, the cooling mechanism is used for conveniently cooling a hose subjected to extrusion molding, the filtering mechanism is used for filtering cooled water, the shaping mechanism is used for conveniently carrying out shaping treatment on the hose subjected to extrusion molding, and the mounting mechanism is used for conveniently replacing and mounting the shaping mechanism.
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Description

Technical Field

[0001] This utility model relates to the technical field of PVC plastic hose extrusion molding, and in particular to a PVC plastic hose extrusion molding device. Background Technology

[0002] Plastic hoses are flexible plastic tubes widely used in various fields such as chemical, machinery, and food manufacturing. During production, plastic hoses are generally made from synthetic resin as the raw material, with the addition of a support structure, stabilizers, lubricants, and plasticizers. The resin is heated to a molten state in an extrusion molding machine, then extruded into a mold and cooled to solidify.

[0003] Existing PVC plastic hose extrusion molding technologies, such as the hose extrusion molding machine with application number CN202322197051.5, include an extruder body, molding die, heating jacket, storage tank, hollow rotating shaft, spiral conveyor blades, heating rod, right-angle fixing, motor fixing frame, motor, stirring shaft, stirring rod, sprocket and chain, etc. The raw materials are mixed by the stirring mechanism, and the mixed raw materials enter the heating jacket. At this time, the stirring mechanism drives the transmission mechanism, which drives the hollow rotating shaft and spiral conveyor blades to rotate, and the spiral conveyor blades transport the raw materials to the left. During the raw material transportation process, the heating jacket and heating rod heat the raw materials in the extruder body from both the inside and outside simultaneously, accelerating the melting rate of the raw materials.

[0004] However, existing technology requires cooling after PVC hoses are extruded, and freshly extruded PVC hoses may deform. Existing technology is not convenient for PVC hoses of different diameters to be reshaped. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a PVC plastic hose extrusion molding device that facilitates the molding and shaping of hoses of different diameters, prevents hose deformation, and improves practicality.

[0006] This utility model discloses a PVC plastic hose extrusion molding device, including an extrusion mechanism; it also includes a feeding mechanism, a cooling mechanism, a filtering mechanism, a shaping mechanism, and an installation mechanism. The feeding mechanism, cooling mechanism, filtering mechanism, and shaping mechanism are all mounted on the extrusion mechanism. The installation mechanism facilitates the basic molding of the material, the feeding mechanism facilitates the mixing of raw materials, the cooling mechanism facilitates the cooling of the extruded hose, the filtering mechanism filters the cooling water, the shaping mechanism facilitates the molding process of the extruded hose, and the installation mechanism facilitates the replacement and installation of the shaping mechanism. The extrusion mechanism facilitates the basic molding of the material, the feeding mechanism facilitates the mixing of raw materials and adds the raw materials into the extrusion mechanism, the cooling mechanism facilitates the cooling of the extruded hose, the filtering mechanism filters the cooling water, improving practicality, the shaping mechanism facilitates the molding process of the extruded hose to prevent deformation after molding, improving hose quality, and the installation mechanism facilitates the replacement and installation of the shaping mechanism, enabling the shaping mechanism to assist in the molding of hoses of different diameters, thus improving practicality.

[0007] Preferably, the extrusion mechanism includes a base plate, an extrusion heating cylinder, an extrusion shaft, extrusion spiral blades, a reducer, an extrusion motor, and an extrusion die. The extrusion heating cylinder is mounted on the base plate via a bracket. The extrusion shaft is rotatably mounted inside the extrusion heating cylinder. The extrusion spiral blades are mounted on the extrusion shaft. The reducer is mounted on the outer wall of the base plate and connected to the extrusion shaft. The extrusion motor is mounted on the reducer and connected to the extrusion motor. The extrusion die is mounted at the other end of the extrusion heating cylinder. When the raw material in the feeding mechanism is added into the extrusion heating cylinder, the extrusion motor is turned on, and the extrusion shaft is driven to rotate through the reducer, which in turn drives the extrusion spiral blades to rotate and extrude the raw material. The raw material is heated by the extrusion heating cylinder and then extruded through the extrusion die.

[0008] Preferably, the feeding mechanism includes a feeding cylinder, a stirring shaft, stirring blades, and a stirring motor. The feeding cylinder is installed on the extrusion heating cylinder, the stirring shaft is rotatably installed inside the feeding cylinder, the stirring blades are installed on the stirring shaft, the stirring motor is installed at the top of the feeding cylinder, and the output end of the stirring motor is connected to the stirring shaft. A valve is provided on the feeding cylinder. By turning on the stirring motor, the stirring shaft is driven to rotate, which in turn drives the stirring blades to rotate and mix the raw materials. Then, the valve is opened to add the raw materials into the extrusion heating cylinder.

[0009] Preferably, the cooling mechanism includes a water tank, a water pump, a spray pipe, and a nozzle. The water tank is installed on the base plate, the water pump is installed on the outer wall of the water tank, the spray pipe is installed on the water tank through a second bracket, the water pump is provided with a connecting pipe, the connecting pipe is connected to the spray pipe, and the nozzle is installed on the spray pipe. First, water is added to the water tank, the water pump is turned on to add water through the connecting pipe into the spray pipe, and then the water is sprayed onto the hose through the nozzle to cool the hose.

[0010] Preferably, the filtration mechanism includes a placement rack and a filter plate. The placement rack is installed on the inner wall of the water tank, and the filter plate can be placed on the placement rack. The placement rack facilitates the placement of the filter plate, and the filter plate can filter the cooling circulating water.

[0011] Preferably, the shaping mechanism includes a shaping frame and shaping rollers. The shaping frame is installed on the water tank, and two shaping rollers are rotatably installed on the shaping frame through a mounting mechanism. The two shaping frames form a forming opening. The extruded hose passes through the forming opening formed by the two shaping rollers. The rotation of the shaping rollers helps to shape the hose, prevents the hose from deforming, and improves the quality of the hose.

[0012] Preferably, the mounting mechanism includes a rotating roller, a first semi-cylinder, a second semi-cylinder, a sliding sleeve, a limiting sleeve, and a spring. The rotating roller is rotatably mounted on the shaping roller, the first semi-cylinder is mounted on the rotating roller, and the second semi-cylinder is mounted on the shaping roller. Guide grooves are provided on the rotating roller, the first semi-cylinder, and the second semi-cylinder. The sliding sleeve is mounted on the outer wall of the rotating roller, and the limiting sleeve is slidably mounted inside the sliding sleeve. A guide slider is provided on the limiting sleeve, and the spring connects the inner wall of the sliding sleeve to the limiting sleeve. When it is necessary to assist in shaping hoses of different diameters, it is necessary to adjust the spring. When replacing or installing the shaping roller, first pull the limiting sleeve so that it slides into the sliding sleeve. At this time, the spring contracts. Then, the second semi-cylinder on the shaping roller is joined with the first semi-cylinder on the rotating roller to form a complete cylinder. At this time, the guide grooves on the rotating roller, the first semi-cylinder, and the second semi-cylinder are aligned. The elasticity of the spring pushes the guide slider on the limiting sleeve to slide in the guide grooves of the rotating roller, the first semi-cylinder, and the second semi-cylinder, so that the limiting sleeve is located at the connection between the first semi-cylinder and the second semi-cylinder, thereby completing the installation of the shaping roller and improving convenience.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the extrusion mechanism facilitates the basic shaping of the material; the feeding mechanism facilitates the stirring of the raw materials and adds the raw materials into the extrusion mechanism; the cooling mechanism facilitates the cooling of the extruded hose; the filtration mechanism filters the cooling water, improving practicality; the shaping mechanism facilitates the shaping of the extruded hose, preventing deformation after shaping and improving the quality of the hose; and the installation mechanism facilitates the replacement and installation of the shaping mechanism, enabling the shaping mechanism to assist in the shaping of hoses of different diameters, thus improving practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the third isometric structure of this utility model;

[0017] Figure 4 This is a front view sectional isometric structural schematic diagram of this utility model;

[0018] Figure 5 This is a side view sectional isometric structural schematic diagram of this utility model;

[0019] Figure 6 This is the utility model Figure 5 Enlarged structural diagram at point A;

[0020] The attached diagram is labeled as follows: 01, Extrusion mechanism; 11, Base plate; 12, Extrusion heating cylinder; 13, Extrusion shaft; 14, Extrusion spiral blade; 15, Reducer; 16, Extrusion motor; 17, Extrusion die; 02, Feeding mechanism; 21, Feeding cylinder; 22, Stirring shaft; 23, Stirring blade; 24, Stirring motor; 03, Cooling mechanism; 31, Water tank; 32, Water pump; 33, Spray pipe; 34, Nozzle; 04, Filtering mechanism; 41, Placement frame; 42, Filter plate; 05, Shaping mechanism; 51, Shaping frame; 52, Shaping roller; 06, Installation mechanism; 61, Rotating roller; 62, First semi-cylinder; 63, Second semi-cylinder; 64, Guide groove; 65, Sliding sleeve; 66, Limiting sleeve; 67, Spring. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0022] like Figure 2 and Figure 4 As shown, a PVC plastic hose extrusion molding device includes an extrusion mechanism 01, a feeding mechanism 02, a cooling mechanism 03, a filtering mechanism 04, a shaping mechanism 05, and an installation mechanism 06. The feeding mechanism 02 is installed on the extrusion mechanism 01, the cooling mechanism 03 is installed on the extrusion mechanism 01, the filtering mechanism 04 is installed on the cooling mechanism 03, the shaping mechanism 05 is installed on the cooling mechanism 03, and the installation mechanism 06 is installed on the shaping mechanism 05.

[0023] The extrusion mechanism 01 facilitates the basic forming of the material, the feeding mechanism 02 facilitates the mixing of the raw materials, the cooling mechanism 03 facilitates the cooling of the extruded hose, the filtration mechanism 04 filters the cooling water, the shaping mechanism 05 facilitates the forming process of the extruded hose, and the installation mechanism 06 facilitates the replacement and installation of the shaping mechanism 05.

[0024] The extrusion mechanism 01 includes a base plate 11, an extrusion heating cylinder 12, an extrusion shaft 13, an extrusion spiral blade 14, a reducer 15, an extrusion motor 16, and an extrusion die 17. The extrusion heating cylinder 12 is mounted on the base plate 11 via a bracket. The extrusion shaft 13 is rotatably mounted inside the extrusion heating cylinder 12. The extrusion spiral blade 14 is mounted on the extrusion shaft 13. The reducer 15 is mounted on the outer wall of the base plate 11 and is connected to the extrusion shaft 13. The extrusion motor 16 is mounted on the reducer 15 and is connected to the extrusion motor 16. The extrusion die 17 is mounted at the other end of the extrusion heating cylinder 12.

[0025] The feeding mechanism 02 includes a feeding cylinder 21, a stirring shaft 22, a stirring blade 23, and a stirring motor 24. The feeding cylinder 21 is mounted on the extrusion heating cylinder 12. The stirring shaft 22 is rotatably mounted inside the feeding cylinder 21. The stirring blade 23 is mounted on the stirring shaft 22. The stirring motor 24 is mounted on the top of the feeding cylinder 21. The output end of the stirring motor 24 is connected to the stirring shaft 22. A valve is provided on the feeding cylinder 21.

[0026] By turning on the stirring motor 24 to drive the stirring shaft 22 to rotate, the stirring blade 23 is driven to rotate to mix the raw materials. Then, the valve is opened to add the raw materials into the extrusion heating cylinder 12. After the raw materials in the feeding cylinder 21 are added into the extrusion heating cylinder 12, the extrusion motor 16 is turned on, and the extrusion shaft 13 is driven to rotate through the reducer 15, which in turn drives the extrusion spiral blade 14 to rotate to extrude the raw materials. The raw materials are heated by the extrusion heating cylinder 12, and then extruded by the extrusion die 17. Example

[0027] like Figures 1 to 6As shown, a PVC plastic hose extrusion molding device includes an extrusion mechanism 01, a feeding mechanism 02, a cooling mechanism 03, a filtering mechanism 04, a shaping mechanism 05, and an installation mechanism 06. The feeding mechanism 02 is installed on the extrusion mechanism 01, the cooling mechanism 03 is installed on the extrusion mechanism 01, the filtering mechanism 04 is installed on the cooling mechanism 03, the shaping mechanism 05 is installed on the cooling mechanism 03, and the installation mechanism 06 is installed on the shaping mechanism 05.

[0028] The extrusion mechanism 01 facilitates the basic forming of the material, the feeding mechanism 02 facilitates the mixing of the raw materials, the cooling mechanism 03 facilitates the cooling of the extruded hose, the filtration mechanism 04 filters the cooling water, the shaping mechanism 05 facilitates the forming process of the extruded hose, and the installation mechanism 06 facilitates the replacement and installation of the shaping mechanism 05.

[0029] The cooling mechanism 03 includes a water tank 31, a water pump 32, a water spray pipe 33, and a nozzle 34. The water tank 31 is mounted on the base plate 11, the water pump 32 is mounted on the outer wall of the water tank 31, the water spray pipe 33 is mounted on the water tank 31 through a second bracket, the water pump 32 is provided with a connecting pipe, the connecting pipe is connected to the water spray pipe 33, and the nozzle 34 is mounted on the water spray pipe 33.

[0030] The filtration mechanism 04 includes a placement rack 41 and a filter plate 42. The placement rack 41 is installed on the inner wall of the water tank 31, and the filter plate 42 can be placed on the placement rack 41.

[0031] The shaping mechanism 05 includes a shaping frame 51 and shaping rollers 52. The shaping frame 51 is mounted on the water tank 31, and the two shaping rollers 52 are rotatably mounted on the shaping frame 51 through the mounting mechanism 06. The two shaping frames 51 form a forming opening.

[0032] The mounting mechanism 06 includes a rotating roller 61, a first semi-cylinder 62, a second semi-cylinder 63, a sliding sleeve 65, a limiting sleeve 66, and a spring 67. The rotating roller 61 is rotatably mounted on the shaping roller 52. The first semi-cylinder 62 is mounted on the rotating roller 61, and the second semi-cylinder 63 is mounted on the shaping roller 52. Guide grooves 64 are provided on the rotating roller 61, the first semi-cylinder 62, and the second semi-cylinder 63. The sliding sleeve 65 is mounted on the outer wall of the rotating roller 61. The limiting sleeve 66 is slidably mounted inside the sliding sleeve 65. A guide slider is provided on the limiting sleeve 66. The spring 67 connects the inner wall of the sliding sleeve 65 and the limiting sleeve 66.

[0033] First, water is added to the water tank 31. Then, the water pump 32 is turned on to pump water through the connecting pipe into the spray pipe 33. The water is then sprayed onto the hose through the nozzle 34 to cool it. The placement rack 41 facilitates the placement of the filter plate 42, which filters the circulating cooling water. The extruded hose is passed through the forming opening formed by two shaping rollers 52. The rotation of the shaping rollers 52 helps to shape the hose, preventing deformation and improving its quality. When different diameter hoses need to be shaped, the shaping rollers 52 need to be replaced. First, the limit sleeve 66 is pulled to... The limiting sleeve 66 slides into the sliding sleeve 65, at which point the spring 67 contracts. Then, the second semi-cylinder 63 on the shaping roller 52 is joined with the first semi-cylinder 62 on the rotating roller 61 to form a complete cylinder. At this time, the guide grooves 64 on the rotating roller 61, the first semi-cylinder 62, and the second semi-cylinder 63 are aligned. The elasticity of the spring 67 pushes the guide slider on the limiting sleeve 66 to slide within the guide grooves 64 of the rotating roller 61, the first semi-cylinder 62, and the second semi-cylinder 63, so that the limiting sleeve 66 is located at the connection between the first semi-cylinder 62 and the second semi-cylinder 63, thereby completing the installation of the shaping roller 52 and improving convenience.

[0034] like Figures 1 to 6As shown, this utility model discloses a PVC plastic hose extrusion molding device. During operation, the stirring motor 24 drives the stirring shaft 22 to rotate, which in turn drives the stirring blades 23 to rotate and mix the raw materials. Then, the valve is opened to add the raw materials into the extrusion heating cylinder 12. After the raw materials in the feeding cylinder 21 are added into the extrusion heating cylinder 12, the extrusion motor 16 is turned on, and the reducer 15 drives the extrusion shaft 13 to rotate, which in turn drives the extrusion spiral blades 14 to rotate and extrude the raw materials. The extrusion heating cylinder 12 heats the raw materials, which are then extruded through the extrusion die 17. First, water is added to the water tank 31, and the water pump 32 is turned on to add water through the connecting pipe into the spray pipe 33. Then, the water is sprayed onto the hose through the nozzle 34 to cool the hose. The placement rack 41 facilitates the placement of the filter plate 42, which filters the cooling circulating water, thus cooling the extruded soft hose. The tube passes through the forming opening formed by two shaping rollers 52. The rotation of the shaping rollers 52 assists in shaping the hose, preventing deformation and improving its quality. When different diameter hoses need to be assisted in shaping, and the shaping rollers 52 need to be replaced, first pull the limiting sleeve 66 so that it slides into the sliding sleeve 65. At this time, the spring 67 retracts. Then, the second semi-cylinder 63 on the shaping roller 52 is spliced ​​with the first semi-cylinder 62 on the rotating roller 61 to form a complete cylinder. At this time, the guide grooves 64 on the rotating roller 61, the first semi-cylinder 62 and the second semi-cylinder 63 are aligned. The elasticity of the spring 67 pushes the guide slider on the limiting sleeve 66 to slide in the guide grooves 64 of the rotating roller 61, the first semi-cylinder 62 and the second semi-cylinder 63, so that the limiting sleeve 66 is located at the connection between the first semi-cylinder 62 and the second semi-cylinder 63, thereby completing the installation of the shaping roller 52 and improving convenience.

[0035] The mixing motor 24, reducer 15, and extrusion motor 16 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0036] The main function achieved by this utility model is to facilitate the molding and shaping of hoses of different diameters during the extrusion molding process of PVC plastic hoses, prevent hose deformation, and improve practicality.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A PVC plastic hose extrusion molding apparatus, comprising an extrusion mechanism (01); characterized in that, It also includes a feeding mechanism (02), a cooling mechanism (03), a filtering mechanism (04), a shaping mechanism (05), and an installation mechanism (06). The feeding mechanism (02) is installed on the extrusion mechanism (01), the cooling mechanism (03) is installed on the extrusion mechanism (01), the filtering mechanism (04) is installed on the cooling mechanism (03), the shaping mechanism (05) is installed on the cooling mechanism (03), and the installation mechanism (06) is installed on the shaping mechanism (05). The extrusion mechanism (01) facilitates the basic forming of the material, the feeding mechanism (02) facilitates the stirring of the raw materials, the cooling mechanism (03) facilitates the cooling of the extruded hose, the filtration mechanism (04) filters the cooling water, the shaping mechanism (05) facilitates the forming process of the extruded hose, and the installation mechanism (06) facilitates the replacement and installation of the shaping mechanism (05).

2. The PVC plastic hose extrusion molding apparatus as described in claim 1, characterized in that, The extrusion mechanism (01) includes a base plate (11), an extrusion heating cylinder (12), an extrusion shaft (13), an extrusion spiral blade (14), a reducer (15), an extrusion motor (16), and an extrusion die (17). The extrusion heating cylinder (12) is mounted on the base plate (11) by a bracket. The extrusion shaft (13) is rotatably mounted inside the extrusion heating cylinder (12). The extrusion spiral blade (14) is mounted on the extrusion shaft (13). The reducer (15) is mounted on the outer wall of the base plate (11) and is connected to the extrusion shaft (13). The extrusion motor (16) is mounted on the reducer (15) and is connected to the extrusion motor (16). The extrusion die (17) is mounted at the other end of the extrusion heating cylinder (12).

3. The PVC plastic hose extrusion molding apparatus as described in claim 2, characterized in that, The feeding mechanism (02) includes a feeding cylinder (21), a stirring shaft (22), a stirring blade (23), and a stirring motor (24). The feeding cylinder (21) is installed on the extrusion heating cylinder (12). The stirring shaft (22) is rotatably installed inside the feeding cylinder (21). The stirring blade (23) is installed on the stirring shaft (22). The stirring motor (24) is installed at the top of the feeding cylinder (21). The output end of the stirring motor (24) is connected to the stirring shaft (22). A valve is provided on the feeding cylinder (21).

4. The PVC plastic hose extrusion molding apparatus as described in claim 2, characterized in that, The cooling mechanism (03) includes a water tank (31), a water pump (32), a water spray pipe (33), and a nozzle (34). The water tank (31) is installed on the base plate (11), the water pump (32) is installed on the outer wall of the water tank (31), the water spray pipe (33) is installed on the water tank (31) through a second bracket, the water pump (32) is provided with a connecting pipe, the connecting pipe is connected to the water spray pipe (33), and the nozzle (34) is installed on the water spray pipe (33).

5. The PVC plastic hose extrusion molding apparatus as described in claim 4, characterized in that, The filtration mechanism (04) includes a placement rack (41) and a filter plate (42). The placement rack (41) is installed on the inner wall of the water tank (31), and the filter plate (42) can be placed on the placement rack (41).

6. The PVC plastic hose extrusion molding apparatus as described in claim 4, characterized in that, The shaping mechanism (05) includes a shaping frame (51) and shaping rollers (52). The shaping frame (51) is installed on the water tank (31), and the two shaping rollers (52) are rotatably installed on the shaping frame (51) through the mounting mechanism (06). The two shaping frames (51) form a forming opening.

7. The PVC plastic hose extrusion molding apparatus as described in claim 6, characterized in that, The mounting mechanism (06) includes a rotating roller (61), a first semi-cylinder (62), a second semi-cylinder (63), a sliding sleeve (65), a limiting sleeve (66), and a spring (67). The rotating roller (61) is rotatably mounted on the shaping roller (52). The first semi-cylinder (62) is mounted on the rotating roller (61), and the second semi-cylinder (63) is mounted on the shaping roller (52). Guide grooves (64) are provided on the rotating roller (61), the first semi-cylinder (62), and the second semi-cylinder (63). The sliding sleeve (65) is mounted on the outer wall of the rotating roller (61). The limiting sleeve (66) is slidably mounted inside the sliding sleeve (65). A guide slider is provided on the limiting sleeve (66). The spring (67) connects the inner wall of the sliding sleeve (65) with the limiting sleeve (66).

Citation Information

Patent Citations

  • Flexible pipe extrusion molding machine

    CN220534889U