Extrusion equipment for PFA hose production

The PFA hose is continuously cooled by combining a water storage tank and a chiller, and the purity of the raw material is improved by a vibration filtration mechanism consisting of a drive shaft and rubber blocks, thus solving the problems of poor cooling effect and insufficient purity in existing equipment.

CN223573788UActive Publication Date: 2025-11-21SHENZHEN DANKAI TECH CO LTD
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Patent Information

Application Number
CN202423237950.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-11-21
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing PFA hose production equipment suffers from poor cooling and lacks raw material filtration structures, leading to problems such as increased pipe temperature and decreased purity.

Method used

The system employs a combination of a water storage tank, water pump, spray head, and chiller for continuous cooling, and utilizes a filtration mechanism with a drive shaft, rubber blocks, and springs to achieve vibration filtration of the raw materials.

Benefits of technology

This technology enables continuous cooling of PFA hoses and high-purity processing of raw materials, thereby improving product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses extrusion equipment for PFA (Polyfluoroalkoxy) hose production, which comprises a base, an extruder and a servo motor are mounted on the base, a driving shaft is mounted on the servo motor, the driving shaft is rotatably mounted on the base, and a feed pipe and a die are mounted on the extruder. Through the arrangement of the water storage tank, the first water pump, the water outlet pipe, the spraying head, the second water pump, the cooling-water machine and other structures, when an extruder is used for extruding a PFA raw material into a PFA hose, cold water in the water storage tank is pumped out through the first water pump and sprayed to the PFA hose just subjected to extrusion forming through the spraying head, and used water flows into the water storage tank again to be wound and reused; and meanwhile, water in the water storage pond is pumped out through the second water pump, cooling treatment is conducted through the cooling-water machine, so that the water in the water storage pond is in a low-temperature state all the time, and then cooling treatment can be conducted on the PFA hose continuously.
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Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion equipment technical field, concretely is a kind of extrusion equipment for PFA hose production. BACKGROUND

[0002] PFA is called soluble polytetrafluoroethylene in Chinese. It is a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene, with enhanced melt adhesion and reduced solution viscosity, while maintaining similar properties to polytetrafluoroethylene. The main component of PFA hose is polytetrafluoroethylene, which is a high molecular material with unique molecular structure. PFA hose has excellent chemical resistance, heat resistance, wear resistance, pressure resistance and transparency, and is widely used in chemical industry, semiconductor manufacturing, photovoltaic industry, biology and pharmaceutical industry, electronic industry and laboratory and other fields. Its manufacturing process is strict, and the market supply is rich. It is an ideal choice for high-performance pipe materials.

[0003] In the prior art, a rubber extrusion equipment for rubber hose production is disclosed in patent No. CN216451442U, which relates to the field of rubber hose production and includes a device main body. The output end of the device main body is provided with a mold. The outer edge of the mold is connected with a clamping block. The outer wall of the clamping block is fixed with a clamping groove. The outer wall of the clamping groove is installed with a fixed block. The utility model is provided with a device main body, a water storage tank, a conveyor belt, a water pump, a mold, a fixed block, a nozzle, a shell, a water pipe, a fan and a mold. When the device main body extrudes rubber from the mold, the conveyor belt moves the rubber hose output from the mold to the outside of the shell. The nozzle sprays water from the water pipe onto the rubber hose on the conveyor belt. The fan accelerates the air flow in the shell, reducing the temperature inside the shell. The water sprayed by the nozzle is filtered by the filter plate at the top of the water storage tank and then returned to the water storage tank, achieving rapid cooling of the rubber hose and full use of water resources.

[0004] Although the above-mentioned equipment can cool the pipe during extrusion, the water used after use is not cooled again in the water storage tank, so that the temperature of the water in the pipe is increased after multiple uses, and the water with increased temperature reduces the cooling effect of the pipe during long-term use. At the same time, the existing equipment does not have a structure for filtering the raw materials during processing. During the use of raw materials, small particles of impurities may be left in the raw materials. If the unfiltered raw materials are used directly, the purity of the pipe produced during processing will be low, which may cause the properties of the pipe to decrease.

[0005] Therefore, an extrusion equipment for PFA hose production is proposed. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of extrusion equipment for PFA hose production to solve the problems presented in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of extrusion equipment for PFA hose production, including base, the base is installed with extruder and servo motor, the servo motor is installed with driving shaft, driving shaft rotation is installed on base, the extruder is installed with feed pipe and mould, the base is installed with cooling mechanism, cooling mechanism is installed on extruder, the extruder is installed with filter mechanism, filter mechanism is installed on feed pipe, the cooling mechanism includes water reservoir, water reservoir is installed on base, the water reservoir is installed with first water pump, first water pump is installed with water outlet pipe, water outlet pipe's other end is installed with shower head, and shower head is compatible with mould.

[0008] Preferably, the other side of the water reservoir is installed with second water pump, and the second water pump is installed with drain pipe, the water reservoir is installed with support plate, and the support plate is installed with water cooler, one side of the water cooler is installed on the drain pipe, the other side of the water cooler is installed with return pipe, and the return pipe is installed on the water reservoir.

[0009] Preferably, the extruder is installed with fixed plate, and the water outlet pipe is installed on the fixed plate.

[0010] Preferably, the filter mechanism includes a plurality of support legs, and the plurality of support legs are installed on the extruder, the support leg is installed with discharge box, the discharge box is installed with adapter box, the adapter box is installed on the feed pipe, two mounting plates are installed on the inner wall of the discharge box, a plurality of guide rods are slidably installed on the mounting plate, a filter plate is installed on the top end of the plurality of guide rods, a feeding port is formed on one side of the adapter box, and one end of the filter plate is movably installed in the interior of the feeding port.

[0011] Preferably, the guide rod is sleeved with spring, one end of the spring is installed on the filter plate, and the other end of the spring is installed on the mounting plate.

[0012] Preferably, the discharge box is rotatably installed with rotating shaft, the rotating shaft is installed with transmission rod, the transmission rod is installed with rubber block, and the rubber block is in contact with the bottom side of the filter plate.

[0013] Preferably, the driving shaft is sleeved with transmission assembly, and the other end of the transmission assembly is sleeved on the rotating shaft.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) The utility model discloses a water pool, first water pump, water outlet pipe, spray head, second water pump and cold water machine etc. Structure's setting, when using extruder to extrude PFA raw material into PFA hose, utilize first water pump to draw out the cold water in the water pool, and spray to the PFA hose that just extrusion molding through the spray head, and the water after use is rolled up again in the water pool and is used repeatedly, thereby can conveniently carry out the cooling treatment to PFA hose, and utilize second water pump to draw out the water in the water pool, and carry out cooling treatment through the cold water machine, thereby can make the water in the water pool always be in the low temperature state, and then can continuously carry out the cooling treatment to PFA hose.

[0016] (2) The utility model discloses a blanking box, filter plate, adapter box, spring, blanking box and transmission assembly etc. Structure's setting, in the process of using, utilize the drive shaft to drive the rubber block on the rotary shaft and carry out the intermittent knock to the surface of filter plate, and cooperate with the use of spring, can make filter plate vibrate ceaselessly, thereby can conveniently carry out the quick filtration to the PFA raw material that falls, removes the tiny impurity in the inside, improves the purity of PFA raw material. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the main structure schematic diagram of the utility model;

[0018] Figure 2 It is the side view structure schematic diagram of the utility model;

[0019] Figure 3 It is the connection structure schematic diagram of transmission assembly, blanking box and adapter box of the utility model;

[0020] Figure 4 It is the connection structure schematic diagram of blanking box, adapter box and filter plate of the utility model;

[0021] Figure 5 It is the Figure 4 Enlarged structure schematic diagram of part A of the utility model;

[0022] In the drawing: 1, base; 2, extruder; 3, feed pipe; 4, servo motor; 5, drive shaft; 6, mould; 7, water pool; 71, first water pump; 72, water outlet pipe; 73, spray head; 74, fixed plate; 75, second water pump; 76, drain pipe; 77, cold water machine; 78, support plate; 79, backwater pipe; 8, support leg; 81, blanking box; 82, adapter box; 83, rotary shaft; 84, feeding port; 85, mounting plate; 86, guide rod; 87, filter plate; 88, spring; 89, transmission rod; 810, rubber block; 811, transmission assembly. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Embodiment 1: Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of extrusion equipment for PFA hose production, including pedestal 1, pedestal 1 is equipped with extruder 2 and servo motor 4, servo motor 4 is equipped with driving shaft 5, driving shaft 5 is rotatably installed on pedestal 1, extruder 2 is equipped with feed pipe 3 and mould 6, pedestal 1 is equipped with cooling mechanism, cooling mechanism is installed on extruder 2, extruder 2 is equipped with filtering mechanism, filtering mechanism is installed on feed pipe 3, cooling mechanism includes water storage pool 7, water storage pool 7 is installed on pedestal 1, water storage pool 7 is equipped with first water pump 71, first water pump 71 is equipped with water outlet pipe 72, water outlet pipe 72 other end is equipped with shower head 73, shower head 73 is compatible with mould 6, the other side of water storage pool 7 is equipped with second water pump 75, second water pump 75 is equipped with drain pipe 76, water storage pool 7 is equipped with support plate 78, support plate 78 is equipped with water cooler 77, one side of water cooler 77 is installed on drain pipe 76, the other side of water cooler 77 is equipped with backwater pipe 79, backwater pipe 79 is installed on water storage pool 7, extruder 2 is equipped with fixed plate 74, water outlet pipe 72 is installed on fixed plate 74, using the switch on first water pump 71, water in water storage pool 7 is drained into water outlet pipe 72, is sprayed to extruded PFA hose by shower head 73, and PFA hose is cooled, water after spraying is dropped into water storage pool 7 for recycling, while the switch on second water pump 75 and water cooler 77 is started, using second water pump 75, water in water storage pool 7 is pumped into water cooler 77 through drain pipe 76, using the water flowing through water cooler 77 is cooled, so that water in water storage pool 7 can always be in low temperature state, so that it can continuously cool extruded PFA hose.

[0025] In order to conveniently remove the tiny impurities in the PFA raw materials, the filtering mechanism comprises a plurality of supporting legs 8, the plurality of supporting legs 8 are installed on the extruder 2, a feeding box 81 is installed on the supporting leg 8, an adapter box 82 is installed on the feeding box 81, the adapter box 82 is installed on the feeding pipe 3, two mounting plates 85 are installed on the inner wall of the feeding box 81, a plurality of guide rods 86 are slidingly installed on the mounting plate 85, a filter plate 87 is installed at the top end of the plurality of guide rods 86, a feeding port 84 is formed on one side of the adapter box 82, one end of the filter plate 87 is movably installed in the feeding port 84, a spring 88 is sleeved on the guide rod 86, one end of the spring 88 is installed on the filter plate 87, the other end of the spring 88 is installed on the mounting plate 85, a rotating shaft 83 is rotatably installed on the feeding box 81, the rotating shaft 83 is installed with a transmission rod 89, a rubber block 810 is installed on the transmission rod 89, the rubber block 810 is in contact with the bottom side of the filter plate 87, a transmission assembly 811 is sleeved on the driving shaft 5, the other end of the transmission assembly 811 is sleeved on the rotating shaft 83, the transmission assembly 811 is rotated by the driving shaft 5, the rotating shaft 83 is rotated by the transmission assembly 811, the transmission rod 89 is rotated by the rotating shaft 83, the rubber block 810 intermittently knocks the bottom side of the filter plate 87, when the rubber block 810 pushes the filter plate 87 upwards, the filter plate 87 stretches the spring 88, when the rubber block 810 moves away from the filter plate 87, the spring 88 restores the filter plate 87 to vibrate, thereby conveniently vibrating and filtering the falling raw materials, conveniently removing the tiny impurities in the PFA raw materials, and the remaining features are the same as those of example 1.

[0026] The working principle is: when the PFA raw material is extruded by the extruder 2 on the base 1, the PFA raw material is first put into the adapter box 82, when the PFA raw material falls on the filter plate 87, the driving shaft 5 drives the transmission assembly 811 to rotate, the transmission assembly 811 drives the rotating shaft 83 to rotate, the rotating shaft 83 drives the transmission rod 89 to rotate, the transmission rod 89 drives the rubber block 810 to knock the bottom side of the filter plate 87 intermittently, when the rubber block 810 lifts the filter plate 87 upwards, the filter plate 87 drives the spring 88 to stretch, when the rubber block 810 moves away from the filter plate 87, the elastic restoring force of the spring 88 drives the filter plate 87 to vibrate continuously, so that the falling raw material can be conveniently vibrated and filtered, and the small impurities in the PFA raw material can be conveniently removed, and when the PFA raw material is processed by the extruder 2 and is extruded and discharged from the mold 6, the switch on the first water pump 71 is started, the water in the water storage tank 7 is discharged into the water outlet pipe 72, and is sprayed on the extruded PFA hose through the spray head 73 to cool the PFA hose, the sprayed water drops into the water storage tank 7 for recycling, the switches on the second water pump 75 and the water chiller 77 are started, the water in the water storage tank 7 is pumped into the water chiller 77 through the drain pipe 76 by the second water pump 75, and the water flowing through the water chiller 77 is cooled, so that the water in the water storage tank 7 is always at a low temperature, and the extruded PFA hose can be continuously cooled.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An extrusion apparatus for producing PFA hoses, comprising a base (1), on which an extruder (2) and a servo motor (4) are mounted, a drive shaft (5) is mounted on the servo motor (4), the drive shaft (5) is rotatably mounted on the base (1), and a feed pipe (3) and a die (6) are mounted on the extruder (2), characterized in that: A cooling mechanism is installed on the base (1), and the cooling mechanism is installed on the extruder (2). A filter mechanism is installed on the extruder (2), and the filter mechanism is installed on the feed pipe (3). The cooling mechanism includes a water storage tank (7), which is installed on the base (1). A first water pump (71) is installed on the water storage tank (7), and a water outlet pipe (72) is installed on the first water pump (71). A spray head (73) is installed on the other end of the water outlet pipe (72), and the spray head (73) is adapted to the mold (6).

2. The extrusion equipment for PFA hose production according to claim 1, characterized in that: A second water pump (75) is installed on the other side of the water storage tank (7), and a drain pipe (76) is installed on the second water pump (75). A support plate (78) is installed on the water storage tank (7), and a chiller (77) is installed on the support plate (78). One side of the chiller (77) is installed on the drain pipe (76), and a return water pipe (79) is installed on the other side of the chiller (77). The return water pipe (79) is installed on the water storage tank (7).

3. The extrusion equipment for PFA hose production according to claim 1, characterized in that: The extruder (2) is equipped with a fixing plate (74), and the water outlet pipe (72) is installed on the fixing plate (74).

4. The extrusion equipment for PFA hose production according to claim 1, characterized in that: The filtration mechanism includes multiple support legs (8), all of which are mounted on the extruder (2). A feeding box (81) is mounted on the support legs (8), and a transfer box (82) is mounted on the feeding box (81). The transfer box (82) is mounted on the feed pipe (3). Two mounting plates (85) are mounted on the inner wall of the feeding box (81). Multiple guide rods (86) are slidably mounted on the mounting plates (85). Filter plates (87) are mounted on the top of the multiple guide rods (86). A feeding port (84) is opened on one side of the transfer box (82), and one end of the filter plate (87) is movably installed inside the feeding port (84).

5. An extrusion apparatus for producing PFA hoses according to claim 4, characterized in that: A spring (88) is sleeved on the guide rod (86). One end of the spring (88) is installed on the filter plate (87), and the other end of the spring (88) is installed on the mounting plate (85).

6. The extrusion equipment for PFA hose production according to claim 4, characterized in that: A rotating shaft (83) is rotatably mounted on the feeding box (81), a transmission rod (89) is mounted on the rotating shaft (83), a rubber block (810) is mounted on the transmission rod (89), and the rubber block (810) is in contact with the bottom side of the filter plate (87).

7. An extrusion apparatus for producing PFA hoses according to claim 6, characterized in that: A transmission assembly (811) is sleeved on the drive shaft (5), and the other end of the transmission assembly (811) is sleeved on the rotating shaft (83).