Internal spiral pipe extrusion die

The mandrel rotates inside the inner spiral tube extrusion die by driving a gear and chain system with a speed-regulating motor. Combined with the design of a cooling water tank and a spray frame, the problem of the outer wall being smooth and the inner wall having spiral ribs in the production of the inner spiral tube die is solved, improving production flexibility and cooling efficiency.

CN223618201UActive Publication Date: 2025-12-02SUZHOU BOSU MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202423139808.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-02
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing internal spiral tube extrusion dies are unable to produce conduits with smooth outer walls and reinforcing spiral ribs on the inner walls, resulting in reduced practicality and flexibility.

Method used

A speed-regulating motor drives a gear and chain system to rotate the mandrel inside the extrusion tube. By adjusting the rotation ratio and extrusion speed, the conduit with spiral reinforcing ribs on the inner wall is produced. It is equipped with a cooling water tank and a spray rack for rapid cooling.

Benefits of technology

This technology enables the production of conduits with spiral reinforcing ribs on the inner wall, improving the flexibility and practicality of the equipment, while also increasing the cooling speed and production efficiency of the conduits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an extrusion die for an inner spiral pipe, which relates to the technical field of extrusion dies and comprises an extrusion die component, a cooling component is arranged at one end of the extrusion die component, an adjusting component is arranged at the other end of the extrusion die component, and the extrusion die component comprises an extrusion pipe. The adjusting assembly comprises a core rod and two gears, a bearing is arranged in the middle of the core rod, one gear is installed at one end of the core rod, and a speed adjusting motor is installed at one end of the other gear; according to the utility model, the adjustable-speed motor is controlled to work, so that the adjustable-speed motor electrically drives a single gear to rotate, the gears drive the chain to rotate, and then the chain drives the other gear to rotate, thereby being beneficial to realizing the rotation of the core rod, the core rod is arranged in the extrusion pipe, and the core rod can be extruded by starting and rotating the adjustable-speed motor. And the rotation speed of the corresponding core rod is adjusted according to the rotation ratio and the extrusion speed.
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Description

Technical Field

[0001] This utility model relates to the field of extrusion die technology, and in particular to an internal spiral tube extrusion die. Background Technology

[0002] In the production of plastic pipes, internal spiral tubes, due to their special structure, have unique advantages in fluid transportation and other fields, such as reducing noise and resistance in fluid flow. However, existing internal spiral tube extrusion dies have many shortcomings.

[0003] In the existing technology, the internal spiral tube extrusion die is not convenient to produce a conduit with a smooth outer wall and a reinforcing spiral rib on the inner wall, which has limitations and leads to reduced practicality and flexibility. Utility Model Content

[0004] This utility model mainly provides an internal spiral tube extrusion die for producing conduits with spiral reinforcing ribs on the inner wall and improving the flexibility of use.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an internal spiral tube extrusion mold, comprising an extrusion mold assembly, a cooling assembly at one end of the extrusion mold assembly, and an adjusting assembly at the other end of the extrusion mold assembly. The extrusion mold assembly includes an extrusion tube, and the adjusting assembly includes a mandrel and two gears. A bearing is provided in the middle of the mandrel. One of the gears is mounted on one end of the mandrel, and a speed-regulating motor is mounted on one end of the other gear. A chain is meshed with the outer side of the gear. By controlling the speed-regulating motor, the motor electrically drives the single gear to rotate, which in turn drives the chain to rotate, thereby causing the chain to drive the other gear to rotate, thus facilitating the achievement of... The mandrel rotates inside the extrusion tube. By turning on the variable speed motor, the rotation speed of the mandrel is adjusted according to the rotation ratio and extrusion speed. Since the inner wall of the extrusion tube is a normal smooth plane, the outer wall of the extruded guide tube also has a normal smooth appearance. The groove of the mandrel can extrude reinforcing ribs, which rotate with the rotation of the mandrel. During production, the normal guide tube production process is first installed to adjust the machine. After the extrusion speed and traction speed are matched, the variable speed motor is started. The rotation ratio is adjusted according to the product requirements, thereby adjusting the rotation speed of the variable speed motor, driving the mandrel to rotate synchronously, achieving the effect of spiral rotation on the inner wall. This is beneficial for producing guide tubes with spiral reinforcing ribs on the inner wall, meeting the needs of different customers and application scenarios, and improving the flexibility and practicality of the equipment.

[0006] Preferably, the cooling assembly includes a cooling water tank installed at one end of the extrusion tube. Multiple spray racks are distributed on the top of the cooling water tank, and multiple nozzles are distributed on the sides of the spray racks. A drain pipe is connected to the bottom of the cooling water tank. The cooling water tank facilitates cooling of the conduit. The spray racks, in conjunction with the nozzles, facilitate simultaneous cooling of the produced conduit, thereby increasing the cooling speed of the conduit. The drain pipe facilitates the discharge of coolant from the cooling water tank.

[0007] Preferably, one end of the spray frame is connected to a connecting pipe, one end of the connecting pipe is equipped with a pump, the side of the pump is connected to a delivery pipe, and one end of the delivery pipe is connected to a cooling water tank. The pump draws coolant from inside the cooling water tank and delivers it to the spray frame through the connecting pipe, thereby improving the cooling efficiency.

[0008] Preferably, a sealing ring is installed on the outer side of the bearing, and the outer side of the sealing ring is connected to the inner wall of the extrusion tube. The sealing ring is installed on the outer side of the bearing, which helps to provide a sealing effect.

[0009] Preferably, an extruder head is installed at one end of the extrusion tube, and a feed pipe is installed inside the extruder head. One end of the feed pipe passes through the inside of the sealing ring. The feed pipe facilitates the entry of raw materials into the extrusion tube, which in turn facilitates the production and extrusion of the conduit.

[0010] Preferably, the side of the bearing is connected to the extruder head, the other end of the extrusion tube is provided with a discharge port, and a support frame is installed at the bottom of the extrusion tube. The discharge port facilitates the discharge of the formed conduit, and the support frame helps to ensure the stability of the extrusion tube.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, a speed-regulating motor is controlled to drive a single gear to rotate. The gear drives a chain to rotate, which in turn drives another gear to rotate, thus facilitating the rotation of the mandrel. The mandrel is installed inside the extrusion tube. By turning on the speed-regulating motor, the rotation speed of the mandrel is adjusted according to the rotation ratio and extrusion speed. Since the inner wall of the extrusion tube is a normal smooth plane, the outer wall of the extruded guide tube also has a normal smooth appearance. The groove of the mandrel can extrude reinforcing ribs, which rotate with the rotation of the mandrel. During production, the normal guide tube production process is first installed to adjust the machine. After the extrusion speed and traction speed are matched, the speed-regulating motor is started. The rotation ratio is adjusted according to the product requirements, thereby adjusting the rotation speed of the speed-regulating motor to drive the mandrel to rotate synchronously, achieving the effect of spiral rotation on the inner wall. This facilitates the production of guide tubes with spiral reinforcing ribs on the inner wall, meeting the needs of different customers and application scenarios, and improving the flexibility and practicality of the equipment.

[0013] 2. In this utility model, the cooling water tank is beneficial for cooling the conduit. The pump draws the coolant from the cooling water tank and delivers it to the spray frame through the connecting pipe. The spray frame, together with the nozzles, sprays the coolant, which is beneficial for cooling the produced conduit at the same time, thereby improving the cooling speed and cooling efficiency of the conduit. Attached Figure Description

[0014] Figure 1 A perspective view of an internal spiral tube extrusion die is provided for this utility model;

[0015] Figure 2 This utility model presents a schematic diagram of an internal spiral tube extrusion die from another angle.

[0016] Figure 3 This utility model provides a schematic diagram of the internal cross-sectional structure of an internal spiral tube extrusion die;

[0017] Figure 4 This utility model presents a schematic diagram of the internal cross-section of an internal spiral tube extrusion die from another angle.

[0018] Legend: 1. Extrusion die assembly; 101. Extrusion tube; 102. Discharge port; 103. Support frame; 104. Feed tube; 105. Extruder head; 2. Cooling assembly; 201. Cooling water tank; 202. Sprayer frame; 203. Pump; 204. Connecting pipe; 205. Drain pipe; 3. Adjustment assembly; 301. Mandrel; 302. Bearing; 303. Sealing ring; 304. Gear; 305. Chain; 306. Speed ​​regulating motor. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Please see Figures 1-4This utility model provides a technical solution: an internal spiral tube extrusion die, including an extrusion die assembly 1. A cooling assembly 2 is provided at one end of the extrusion die assembly 1, and an adjusting assembly 3 is provided at the other end. The extrusion die assembly 1 includes an extrusion tube 101. The adjusting assembly 3 includes a mandrel 301 and two gears 304. A bearing 302 is provided in the middle of the mandrel 301. One gear 304 is mounted at one end of the mandrel 301, and a speed-regulating motor 306 is mounted at one end of the other gear 304. A chain 305 is meshed with the outer side of the gear 304. By controlling the speed-regulating motor 306, the motor electrically drives the single gear 304 to rotate, which in turn drives the chain 305 to rotate, thereby causing the chain 305 to drive the other gear 304 to rotate, thus facilitating… The mandrel 301 is installed inside the extrusion tube 101. By turning on the speed-regulating motor 306, the rotation speed of the mandrel 301 is adjusted according to the rotation ratio and extrusion speed. Since the inner wall of the extrusion tube 101 is a normal smooth plane, the outer wall of the extruded guide tube also has a normal smooth appearance. The groove of the mandrel 301 can extrude reinforcing ribs. The mandrel 301 rotates synchronously. During production, the normal guide tube production process is first installed to adjust the machine. After the extrusion speed and traction speed are matched, the speed-regulating motor 306 is started. The rotation ratio is adjusted according to the product requirements, thereby adjusting the rotation speed of the speed-regulating motor 306, which drives the mandrel 301 to rotate synchronously, achieving the effect of spiral rotation on the inner wall. This is beneficial for producing guide tubes with spiral reinforcing ribs on the inner wall, meeting the needs of different customers and application scenarios, and improving the flexibility and practicality of the equipment.

[0022] like Figure 2 As shown, the cooling assembly 2 includes a cooling water tank 201, which is installed at one end of the extrusion tube 101. Multiple spray racks 202 are distributed on the top of the cooling water tank 201, and multiple nozzles are distributed on the sides of the spray racks 202. A drain pipe 205 is connected to the bottom of the cooling water tank 201. The cooling water tank 201 facilitates the cooling of the conduit. The spray racks 202, in conjunction with the nozzles, facilitate the simultaneous cooling of the produced conduit, thereby increasing the cooling speed of the conduit. The drain pipe 205 facilitates the discharge of coolant from the cooling water tank 201.

[0023] like Figure 1 As shown, one end of the spray frame 202 is connected to a connecting pipe 204, and a pump 203 is installed at one end of the connecting pipe 204. A conveying pipe is connected to the side of the pump 203, and one end of the conveying pipe is connected to the cooling water tank 201. The pump 203 draws the coolant from the cooling water tank 201 and delivers it to the spray frame 202 through the connecting pipe 204, thereby improving the cooling efficiency.

[0024] like Figure 3 and Figure 4 As shown, a sealing ring 303 is installed on the outside of the bearing 302. The outside of the sealing ring 303 is connected to the inner wall of the extrusion tube 101. The sealing ring 303 is installed on the outside of the bearing 302, which helps to provide a sealing effect.

[0025] like Figure 3 and Figure 4 As shown, an extruder head 105 is installed at one end of the extrusion tube 101, and a feed pipe 104 is installed inside the extruder head 105. One end of the feed pipe 104 passes through the inside of the sealing ring 303. The feed pipe 104 facilitates the entry of raw materials into the extrusion tube 101, which in turn facilitates the production extrusion of the conduit.

[0026] like Figure 3 As shown, the side of the bearing 302 is connected to the extruder head 105, and the other end of the extrusion tube 101 is provided with a discharge port 102. A support frame 103 is installed at the bottom of the extrusion tube 101. The discharge port 102 facilitates the discharge of the formed conduit, and the support frame 103 helps to ensure the stability of the extrusion tube 101.

[0027] The operating method and working principle of this device are as follows: The feed pipe 104 facilitates the entry of raw materials into the extrusion tube 101. The speed-regulating motor 306 is controlled to operate, electrically driving a single gear 304 to rotate. This gear 304 drives the chain 305, which in turn drives another gear 304, thus facilitating the rotation of the mandrel 301. During production, the machine is first adjusted using the normal guide tube production process. Once the extrusion speed and traction speed are properly matched, the speed-regulating motor 306 is started, and the rotation ratio is adjusted according to product requirements. This adjusts the rotational speed of the speed-regulating motor 306, causing the mandrel 301 to rotate synchronously, achieving the effect of spiral rotation on the inner wall. The groove of the mandrel 301 can extrude reinforcing ribs, which is beneficial for producing conduits with spiral reinforcing ribs on the inner wall. The discharge port 102 facilitates the discharge of the formed conduits. The cooling water tank 201 is beneficial for cooling the conduits. The pump 203 draws the coolant from the cooling water tank 201 and delivers it to the spray frame 202 through the connecting pipe 204. The spray frame 202 sprays the coolant with the nozzles, which is beneficial for cooling the produced conduits simultaneously.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An internal spiral tube extrusion die, characterized in that, The device includes an extrusion die assembly (1), one end of which is provided with a cooling assembly (2), and the other end of which is provided with an adjustment assembly (3). The extrusion die assembly (1) includes an extrusion tube (101), and the adjustment assembly (3) includes a mandrel (301) and two gears (304). A bearing (302) is provided in the middle of the mandrel (301), one of the gears (304) is installed at one end of the mandrel (301), and a speed-regulating motor (306) is installed at one end of the other gear (304). A chain (305) is meshed with the outer side of the gear (304).

2. The internal spiral tube extrusion die according to claim 1, characterized in that: The cooling assembly (2) includes a cooling water tank (201), which is installed at one end of the extrusion tube (101). Multiple spray racks (202) are distributed on the top of the cooling water tank (201), and multiple nozzles are distributed on the side of the spray racks (202). A drain pipe (205) is connected to the bottom of the cooling water tank (201).

3. The internal spiral tube extrusion die according to claim 2, characterized in that: One end of the spray frame (202) is connected to a connecting pipe (204), and a pump (203) is installed at one end of the connecting pipe (204). A conveying pipe is connected to the side of the pump (203), and one end of the conveying pipe is connected to the cooling water tank (201).

4. The internal spiral tube extrusion die according to claim 1, characterized in that: A sealing ring (303) is installed on the outside of the bearing (302), and the outside of the sealing ring (303) is connected to the inner wall of the extrusion tube (101).

5. The internal spiral tube extrusion die according to claim 1, characterized in that: One end of the extrusion tube (101) is equipped with an extruder head (105), and a feed pipe (104) is installed inside the extruder head (105). One end of the feed pipe (104) passes through the inside of the sealing ring (303).

6. The internal spiral tube extrusion die according to claim 5, characterized in that: The side of the bearing (302) is connected to the extruder head (105), and the other end of the extrusion tube (101) is provided with a discharge port (102). A support frame (103) is installed at the bottom of the extrusion tube (101).