One-step method polyurethane foaming pipe production equipment and production process

Abstract

The invention discloses one-step polyurethane foaming pipe production equipment and a production process. The production equipment comprises a supporting mechanism, and a feeding mechanism, an inner pipe extruder, an inner pipe treatment mechanism, an inner pipe traction machine, a foaming machine, a protective layer extruder and a thermal insulation pipe treatment mechanism which are mounted on the supporting mechanism, a discharge pipe of the material mechanism is connected to a feed port of the inner pipe extruder; the inner pipe extruder is arranged on one side of the feeding mechanism and is used for manufacturing an inner pipe; the inner pipe processing mechanism is arranged on one side of the inner pipe extruder and used for processing an inner pipe and then pulling the inner pipe to the foaming machine through the inner pipe traction machine. The foaming machine is used for manufacturing a heat preservation layer wrapping the periphery of the inner pipe. The protective layer extruder is arranged on one side of the foaming machine and used for manufacturing a protective layer wrapping the heat preservation layer into the heat preservation composite pipe. The thermal insulation pipe treatment mechanism is arranged on one side of the protective layer extruder and is used for treating the thermal insulation composite pipe to obtain a thermal insulation pipe; and a control terminal.

Description

Technical Field

[0001] The invention relates to the field of one-step production of polyurethane foam tubes, and in particular to one-step polyurethane foam tube production equipment and a production process. Background Art

[0002] The insulation pipe has good corrosion resistance and heat insulation performance. It is convenient to construct and has a long service life. It has been widely used in solar water heating systems, air energy heat pump water heating systems, central air conditioning hot and cold water pipelines, air compressor waste heat recovery water heating systems and heating insulation pipelines. Its structure is mostly an inner pipe, an insulation layer and an outer pipe. The inner pipe can be made of rubber or steel pipe. The insulation layer is a foam layer. The outer pipe is mostly a rubber hose. The processing method of the foam layer is: seal the gaps at both ends of the inner pipe and the outer rubber hose, manually climb to the top of the insulation pipe and drill holes with a hand drill On the one hand, the punching process is inconvenient to operate, and on the other hand, the punching is not standardized and the hole position is not fixed. After punching, the gun head of the foaming machine is manually dragged into the hole. Due to the high pressure of foam injection, at least two workers are required to hold the gun head. There are certain safety hazards in the foam injection process and it is inconvenient to operate. Therefore, a more convenient and easy-to-process equipment is needed. The existing foaming needs to be carried out in two steps, and the efficiency is too low. Therefore, a safe and convenient one-step method is needed to foam, increase work efficiency, and realize continuous production;

[0003] The one-step molding production process of polyurethane foam tube refers to the process of forming a protective layer on the outside of a working tube by cooperating with a protective layer extruder and a polyurethane foaming machine. After the protective layer is extruded and molded, a circular space is formed between the working tube and the protective layer. Then, the polyurethane insulation layer is foamed in the circular space. This process can realize a continuous production process, thereby greatly improving work efficiency. However, the existing structure is too complicated. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing one-step molding production process requires manual operation of a foaming machine for foaming, which has certain safety hazards and is inconvenient to operate. Therefore, a more convenient and easy-to-process equipment is needed. The present invention provides a one-step polyurethane foam tube production device. The present invention also provides a one-step polyurethane foam tube production process, which realizes the one-step production process of the polyurethane foam tube, and can be adjusted according to specific production needs to produce insulation tubes with different needs. The entire production process is automatically operated on the assembly line after the entire production equipment is assembled. The structure is simple, easy to use, effectively improves work efficiency, and ensures product production quality, so as to solve the defects caused by the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] In a first aspect, a one-step polyurethane foam tube production device comprises a support mechanism and a feeding mechanism installed on the support mechanism, an inner tube extruder, an inner tube processing mechanism, an inner tube traction machine, a foaming machine, a protective layer extruder, and an insulation tube processing mechanism;

[0007] The discharge pipe of the feeding mechanism is connected to the feed port of the inner tube extruder;

[0008] The inner tube extruder is arranged at the bottom of the feeding mechanism and is used to make the inner tube;

[0009] The inner tube processing mechanism is arranged at one side of the inner tube extruder, and is used for processing the inner tube and then pulling it to the protective layer extruder by the inner tube pulling machine;

[0010] The foaming machine is arranged at one side of the protective layer extruder, and is used to form a thermal insulation layer wrapped around the outer periphery of the inner tube, and the thermal insulation layer is a polyurethane thermal insulation layer;

[0011] The protective layer extruder is arranged outside the inner tube processing mechanism and is used to form a protective layer wrapped around the thermal insulation layer to form a thermal insulation composite pipe;

[0012] The thermal insulation pipe processing mechanism is arranged on one side of the protective layer extruder, and is used to process the thermal insulation composite pipe to obtain the thermal insulation pipe;

[0013] A control terminal is provided, wherein the control terminal is respectively connected to and controls the feeding mechanism, the inner tube extruder, the inner tube processing mechanism, the inner tube traction machine, the foaming machine, the protective layer extruder, and the insulation tube processing mechanism.

[0014] The above-mentioned one-step polyurethane foam tube production equipment, wherein the control terminal is a PC or a mobile phone, and the PC or the mobile phone can be connected to the feeding mechanism, the inner tube extruder, the inner tube processing mechanism, the inner tube traction machine, the foaming machine, the protective layer extruder, and the insulation tube processing mechanism by wire or wireless for control, which is convenient for operation.

[0015] The above-mentioned one-step polyurethane foam tube production equipment, wherein the support mechanism comprises a plurality of detachably connected brackets, the bottoms of the feeding mechanism, the inner tube extruder, the inner tube processing mechanism, the inner tube traction machine, the foaming machine, the protective layer extruder, and the insulation tube processing mechanism are all equipped with the brackets, the bottom of the brackets are equipped with moving wheels, and the brackets are equipped with limiters for fixing the moving wheels to prevent them from moving;

[0016] The front and rear ends of the bracket are respectively installed with matching connecting parts and locking parts. The connecting part is preferably a connecting ring, and the locking part is preferably a hook. The front bracket and the rear bracket are connected and fixed by the connecting part and the locking part. The position and quantity of the production equipment can be adjusted according to needs for easy use.

[0017] The one-step polyurethane foam tube production equipment mentioned above, wherein the inner tube processing mechanism comprises an inner tube mold assembly, an inner tube sizing device, an inner tube cooling box, an inner tube secondary cooling box, and an inner tube inkjet printer which are sequentially installed on the top of the bracket, wherein the inner tube cooling box is preferably a vacuum cooling box, and the inner tube inkjet printer is preferably a laser inkjet printer;

[0018] The inner tube die assembly is arranged on one side of the inner tube extruder and is used to shape the inner tube;

[0019] The inner tube sizing device is used to sizing the shaped inner tube;

[0020] The inner tube cooling box is used to cool the inner tube after sizing, and an inner tube cooler is installed in the inner tube cooling box;

[0021] The inner tube secondary cooling box performs secondary cooling on the cooled inner tube, and an inner tube cooler is installed in the inner tube secondary cooling box;

[0022] The inner tube inkjet printer is used to inkjet the inner tube after secondary cooling;

[0023] The inner tube traction machine is used to pull the inner tube after coding to the foaming machine;

[0024] An inner tube positioner is installed on the inner tube traction machine;

[0025] The inner tube positioner is connected to the control terminal wirelessly for data exchange, and the control terminal is respectively connected to and controls the inner tube mold assembly, the inner tube sizing device, the inner tube cooler, and the inner tube inkjet printer.

[0026] The one-step polyurethane foam tube production equipment mentioned above, wherein the inner tube mold assembly comprises an inner tube upper mold, an inner tube lower mold, and an inner tube mold driver respectively connected to the inner tube upper mold and the inner tube lower mold, and the inner tube mold driver is installed on the bracket;

[0027] The control terminal is connected to and controls the inner tube mold driver, and the inner tube mold driver drives the inner tube upper mold and the inner tube lower mold to move and clamp the inner tube for shaping.

[0028] The above-mentioned one-step polyurethane foam pipe production equipment, wherein the insulation pipe processing mechanism comprises an insulation composite pipe mold assembly, an insulation composite pipe sizing device, a vacuum eccentric shaping adjustment box, a centering regulator, an insulation composite pipe cooling box, an insulation composite pipe inkjet printer, an insulation composite pipe traction machine, and a cutting machine, which are sequentially installed on the top of the bracket. The insulation composite pipe inkjet printer is preferably a laser inkjet printer;

[0029] The thermal insulation composite pipe die assembly is arranged on one side of the protective layer extruder and is used to shape the thermal insulation composite pipe;

[0030] The thermal insulation composite pipe sizing device is used to sizing the thermal insulation composite pipe that has been shaped;

[0031] The vacuum eccentric shaping adjustment box is used to perform eccentric shaping adjustment on the thermal insulation composite pipe after sizing;

[0032] The centering regulator is used to adjust the centering of the thermal insulation composite pipe after eccentric shaping adjustment;

[0033] The thermal insulation composite pipe cooling box is used to cool the thermal insulation composite pipe after the center degree is adjusted, and a thermal insulation composite pipe cooler is installed in the thermal insulation composite pipe cooling box;

[0034] The thermal insulation composite pipe inkjet printer is used to inkjet the thermal insulation composite pipe after cooling;

[0035] The thermal insulation composite pipe traction machine is used to pull the thermal insulation composite pipe after coding to the cutting machine;

[0036] The thermal insulation composite pipe traction machine is equipped with a thermal insulation composite pipe positioner;

[0037] The thermal insulation composite pipe positioner is connected to the control terminal wirelessly for data exchange, and the control terminal is respectively connected to and controls the thermal insulation composite pipe mold assembly, the thermal insulation composite pipe sizing device, the thermal insulation composite pipe cooler, the thermal insulation composite pipe inkjet printer, the thermal insulation composite pipe traction machine, and the cutting machine;

[0038] The above-mentioned one-step polyurethane foam pipe production equipment, wherein the thermal insulation composite pipe mold assembly comprises a thermal insulation composite pipe upper mold, a thermal insulation composite pipe lower mold, and a thermal insulation composite pipe mold driver respectively connected to the inner tube upper mold and the inner tube lower mold, and the thermal insulation composite pipe mold driver is installed on the bracket;

[0039] The control terminal is connected to and controls the thermal insulation composite pipe mold driver, and the thermal insulation composite pipe mold driver drives the thermal insulation composite pipe upper mold and the thermal insulation composite pipe lower mold to move relatively and clamp the thermal insulation composite pipe for shaping.

[0040] The above-mentioned one-step polyurethane foam tube production equipment further comprises a storage rack, and the thermal insulation composite tube is cut to form the thermal insulation and placed on the storage rack.

[0041] The above-mentioned one-step polyurethane foam tube production equipment, wherein the inner tube is a PPR inner tube, and the protective layer is a PE protective layer.

[0042] In a second aspect, a one-step polyurethane foam tube production device according to the first aspect is used to carry out a one-step polyurethane foam tube production process, wherein the one-step polyurethane foam tube production process comprises the following steps:

[0043] Step 1: Load the raw materials for making the inner tube into the feeding mechanism, start the one-step polyurethane foam tube production equipment through the control terminal for preheating, and transport the raw materials into the inner tube extruder through the discharge pipe;

[0044] Step 2: The inner tube extruder extrude the inner tube of the required size, which is fixed and formed by the inner tube mold assembly, and then the inner tube sizing equipment is used to finalize the size, cool, re-cool, and print the code;

[0045] Step 3: The cooled inner tube is pulled to the protective layer extruder by the inner tube traction machine, and the protective layer extruder extrude the protective layer wrapped around the outer periphery of the inner tube and then enters the thermal insulation composite tube mold assembly for fixed molding, and then enters the vacuum eccentric molding adjustment box after the thermal insulation composite tube sizing equipment performs size finalization, and then enters the vacuum eccentric molding adjustment box, and the post-foaming machine foams to generate the thermal insulation layer between the inner tube and the protective layer, and then the center degree is adjusted, cooled, and printed to form the thermal insulation composite tube;

[0046] Step 4: The thermal insulation composite pipe is pushed by the thermal insulation composite pipe pulling machine to the cutting machine for cutting to form the thermal insulation pipe.

[0047] The technical solution provided by the one-step polyurethane foam tube production equipment and production process of the present invention has the following technical effects:

[0048] This solution adopts the cooperation between the support mechanism and the feeding mechanism, inner tube extruder, inner tube processing mechanism, inner tube traction machine, foaming machine, protective layer extruder and insulation tube processing mechanism installed on the support mechanism to realize the one-step production process of polyurethane foam tube. The inner tube extruder, inner tube processing mechanism, protective layer extruder and insulation tube processing mechanism can be adjusted according to specific production needs to produce insulation tubes with different needs. The front and rear mechanisms can be adjusted in position through the rack according to the solution, and the racks can be fixed and locked. The entire production process is automatic after the entire production equipment is assembled. The structure is simple, easy to use, effectively improves work efficiency, and ensures product production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1This is a schematic structural diagram of a one-step polyurethane foam tube production device of the present invention;

[0050] Figure 2 It is a structural schematic diagram of a feeding mechanism, an inner tube extruder, and an inner tube processing mechanism in a one-step polyurethane foam tube production device of the present invention;

[0051] Figure 3 It is a structural schematic diagram of an inner tube traction machine in a one-step polyurethane foam tube production device of the present invention;

[0052] Figure 4 This is a schematic diagram of the cross-sectional structure of a heat preservation pipe produced by a one-step polyurethane foam pipe production device of the present invention;

[0053] Figure 5 The present invention is a one-step polyurethane foam tube production process flow chart.

[0054] The reference numerals are as follows:

[0055] Support mechanism 100, feeding mechanism 200, inner tube extruder 300, inner tube processing mechanism 400, inner tube traction machine 500, foaming machine 600, protective layer extruder 700, insulation tube processing mechanism 800, storage rack 900, insulation tube 1000, bracket 101, inner tube mold assembly 401, inner tube sizing equipment 402, inner tube cooling box 403, inner tube secondary cooling box 404, inner tube inkjet printer 405, insulation composite tube mold assembly 801, insulation composite tube sizing equipment 802, vacuum eccentric shaping adjustment box 803, centering regulator 804, insulation composite tube cooling box 805, insulation composite tube inkjet printer 806, insulation composite tube traction machine 807, cutting machine 808, inner tube 1001, insulation layer 1002, insulation composite tube 1003, protective layer 1004. DETAILED DESCRIPTION

[0056] In order to make the technical means, creative features, objectives and effects of the invention easy to understand, the technical solutions in the embodiments of the present invention are clearly and completely described below in combination with specific diagrams. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0057] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0058] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0059] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0060] like Figure 1-4 As shown, in the first aspect, the first embodiment, a one-step polyurethane foam tube production device, which includes a support mechanism 100 and a feeding mechanism 200 installed on the support mechanism 100, an inner tube extruder 300, an inner tube processing mechanism 400, an inner tube traction machine 500, a foaming machine 600, a protective layer extruder 700, and an insulation tube processing mechanism 800; the discharge pipe of the feeding mechanism 200 is connected to the feed port of the inner tube extruder 300; the inner tube extruder 300 is arranged at the bottom of the feeding mechanism 200, and is used to make an inner tube 1001; the inner tube processing mechanism 400 is arranged on one side of the inner tube extruder 300, and is used to process the inner tube 1001 and then be pulled to the protective layer extruder 700 by the inner tube traction machine 500; the foaming machine 600 is arranged at the protective layer extruder 700 One side is used to make an insulation layer 1002 wrapped around the outer periphery of the inner tube, and the insulation layer 1002 is a polyurethane insulation layer; the protective layer extruder 700 is arranged on the outer side of the inner tube processing mechanism 400, and is used to make a protective layer 1004 wrapped around the insulation layer 1002 to make an insulation composite pipe 1003; the insulation pipe processing mechanism 800 is arranged on one side of the protective layer extruder 700, and is used to process the insulation composite pipe 1003 to obtain the insulation pipe 1000; the control terminal, the control terminal is connected to and sends control signals to the control feeding mechanism 200, the inner tube extruder 300, the inner tube processing mechanism 400, the inner tube traction machine 500, the foaming machine 600, the protective layer extruder 700, and the insulation pipe processing mechanism 800 through wireless or wired to control their opening and closing.

[0061] The inner tube extruder 300 and the protective layer extruder 700 are both extruders. The extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. Extruders can be basically classified into twin-screw extruders, single-screw extruders, rare multi-screw extruders, and screwless extruders.

[0062] The single screw of a single-screw extruder is generally divided into three sections in terms of effective length. The effective length of the three sections is determined by the screw diameter, pitch and depth, and is generally divided into one-third each; the conveying section starts from the last thread of the material inlet: the material is required not to be plasticized here, but it must be preheated and pressed; the second section is called the compression section, at which time the volume of the screw groove gradually decreases, and the temperature must reach the plasticization degree of the material, and compression occurs here from the conveying section three to one here, which is called the compression ratio of the screw is 3:1, and the plasticized material enters the third section; the third section is the metering section, where the material maintains the plasticizing temperature, but the molten material is accurately and quantitatively transported like a metering pump to supply the machine head. At this time, the temperature cannot be lower than the plasticizing temperature, and is generally slightly higher.

[0063] The control terminal is a PC or a mobile phone. The PC or the mobile phone can be connected to the feeding mechanism 200, the inner tube extruder 300, the inner tube processing mechanism 400, the inner tube traction machine 500, the foaming machine 600, the protective layer extruder 700, and the insulation tube processing mechanism 800 by wired or wireless means to send control signals to control their opening and closing, which is convenient for operation.

[0064] The supporting mechanism 100 includes a plurality of detachably connected brackets 101, and the bottoms of the feeding mechanism 200, the inner tube extruder 300, the inner tube processing mechanism 400, the inner tube traction machine 500, the foaming machine 600, the protective layer extruder 700, and the insulation tube processing mechanism 800 are all installed with brackets 101, and the bottoms of the brackets 101 are installed with moving wheels, and the brackets 101 are installed with limiting members for fixing the moving wheels to prevent them from moving; the front and rear ends of the brackets 101 are respectively installed with matching connecting members and locking members.

[0065] The inner tube processing mechanism 400 comprises an inner tube mold assembly 401, an inner tube sizing device 402, an inner tube cooling box 403, an inner tube secondary cooling box 404, and an inner tube inkjet printer 405 which are sequentially installed on the top of the bracket 101; the inner tube mold assembly 401 is arranged on one side of the inner tube extruder 300, and is used to shape the inner tube 1001; the inner tube sizing device 402 is used to size the shaped inner tube 1001, and the diameter of the inner tube 1001 can be changed according to actual conditions, so as to produce insulation tubes 1000 of different specifications; the inner tube cooling box 403 is used to cool and stabilize the sizing inner tube 1001, and an inner tube cooler is installed in the inner tube cooling box 403; the inner tube secondary cooling box 40 4. The cooled inner tube 1001 is subjected to secondary cooling, and an inner tube cooler is installed in the inner tube secondary cooling box 404; the inner tube inkjet printer 405 is used to inkjet the inner tube 1001 after secondary cooling; the inner tube traction machine 500 is used to pull the inner tube 1001 after inkjet printing to the foaming machine 600; the inner tube traction machine 500 is equipped with an inner tube positioner, and the inner tube positioner detects the position of the inner tube 1001 in real time for subsequent processes; the inner tube positioner is connected to the control terminal via wireless to exchange data, and the control terminal is connected to the inner tube mold assembly 401, the inner tube sizing device 402, the inner tube cooler, and the inner tube inkjet printer 405 via wireless or wired to send signals to control their opening and closing.

[0066] The inner tube mold assembly 401 includes an inner tube upper mold, an inner tube lower mold and an inner tube mold driver respectively connected to the inner tube upper mold and the inner tube lower mold. The inner tube upper mold and the inner tube lower mold are arranged on the same side, and are driven by the inner tube mold driver to move relative to each other and just clamp on the inner tube 1001. The inner tube mold driver is installed on the bracket 101; the control terminal is connected to and controls the inner tube mold driver, and the inner tube mold driver drives the inner tube upper mold and the inner tube lower mold to move relative to each other to shape the inner tube. The inner tube mold driver drives the inner tube upper mold and the inner tube lower mold to move and clamp the inner tube 1001 for shaping. The shape and size of the inner tube upper mold and the inner tube lower mold can be replaced according to needs.

[0067] The insulation pipe processing mechanism 800 includes an insulation composite pipe mold assembly 801, an insulation composite pipe sizing device 802, a vacuum eccentric shaping adjustment box 803, a centering regulator 804, an insulation composite pipe cooling box 805, an insulation composite pipe inkjet printer 806, an insulation composite pipe traction machine 807, and a cutting machine 808, which are sequentially installed on the top of the bracket 101; the insulation composite pipe mold assembly 801 is arranged on one side of the protective layer extruder 700, and is used to shape the insulation composite pipe 1003; the insulation composite pipe sizing device 802 is used to size the shaped insulation composite pipe 1003; the vacuum eccentric shaping adjustment box 803 is used to perform eccentric shaping adjustment on the insulation composite pipe after sizing, and a water cooling device is provided in the vacuum eccentric shaping adjustment box 803 for cooling the insulation composite pipe; the centering regulator 804 is used to adjust the vacuum eccentric shaping of the insulation composite pipe. The center degree of the thermal insulation composite pipe after the center setting adjustment is adjusted; the thermal insulation composite pipe cooling box 805 is used to cool the thermal insulation composite pipe 1003 after the center degree adjustment, and the thermal insulation composite pipe cooling box 805 is installed with a thermal insulation composite pipe cooler; the thermal insulation composite pipe inkjet printer 806 is used to inkjet the cooled thermal insulation composite pipe 1003; the thermal insulation composite pipe traction machine 807 is used to pull the thermal insulation composite pipe 1003 after inkjet to the cutting machine 808; the thermal insulation composite pipe traction machine 807 is installed with a thermal insulation composite pipe positioner; the thermal insulation composite pipe positioner is connected to the control terminal through wireless to exchange data, and the control terminal is respectively connected to and controls the thermal insulation composite pipe mold assembly 801, the thermal insulation composite pipe sizing equipment 802, the thermal insulation composite pipe cooler, the thermal insulation composite pipe inkjet printer 806, the thermal insulation composite pipe traction machine 807, and the cutting machine 808.

[0068] The inner tube sizing device 402 and the insulation composite tube sizing device 802 are both sizing machines. The sizing machine reheats the manufactured pipe and then performs sizing rolling to obtain a relatively high-precision external dimension. The hole type of the sizing roller can be adjusted individually or both rollers can be adjusted simultaneously. The sizing roller of the sizing machine is the main tool for sizing. It is supported and rotated by the bearing in the sizing roller box, and the correct position of the sizing roller in the frame is ensured.

[0069] The sizing machine is mainly composed of a working frame and a transmission device. The working frame is installed on the integral base. The frames are arranged in sequence and tilted to different sides so that the roller axis is at a 45° angle to the horizontal plane. The axes of the rollers of two adjacent frames are perpendicular to each other. The working machine base is composed of a frame, rollers and bearings, a roller radial adjustment device, a roller axial adjustment device and a base. The axial adjustment of the roller is achieved by turning the stud bolts, nuts and adjusting bolts; the radial adjustment is achieved by pressing down the screw, which is supported on the bearing seat through a pad. The screw is rotated to drive the helical gear, and the pressing screw is rotated through the clutch to move up and down.

[0070] The vacuum eccentric shaping adjustment box 803 is a vacuum shaping box installed for eccentric shaping of pipes. The vacuum shaping box is equipped with an eccentric device and a vacuum system for eccentric shaping. The stainless steel box body and the vacuum shaping water tank are equipped with a front and rear moving device and a left and right, high and low adjustment manual device.

[0071] The thermal insulation composite pipe mold assembly 801 includes a thermal insulation composite pipe upper mold, a thermal insulation composite pipe lower mold, and a thermal insulation composite pipe mold driver respectively connected to the inner tube upper mold and the inner tube lower mold. The inner tube upper mold and the inner tube lower mold are installed on the same side of the thermal insulation composite pipe mold driver. The thermal insulation composite pipe mold driver drives the inner tube upper mold and the inner tube lower mold to move up and down to clamp the thermal insulation composite pipe 1003 for shaping. The thermal insulation composite pipe mold driver is installed on the bracket 101; the control terminal is connected to and controls the thermal insulation composite pipe mold driver, the thermal insulation composite pipe mold driver drives the thermal insulation composite pipe upper mold and the thermal insulation composite pipe lower mold to move to shape the thermal insulation composite pipe, and the thermal insulation composite pipe mold driver drives the thermal insulation composite pipe upper mold and the thermal insulation composite pipe lower mold to move relatively to clamp the thermal insulation composite pipe for shaping. The shape and size of the thermal insulation composite pipe upper mold and the thermal insulation composite pipe lower mold can be replaced according to needs.

[0072] It also includes a storage rack 900, on which the thermal insulation composite pipe is cut to form the thermal insulation pipe 1000 and placed.

[0073] like Figure 2 As shown, the inner tube 1001 is a PPR inner tube, and the protective layer 1004 is a PE protective layer. Polyethylene (PE for short) is a thermoplastic resin obtained by polymerization of ethylene monomers; PP-R (polypropylene random) tube, also known as tripropylene tube, random copolymer polypropylene tube or PPR tube, is a tube made of random copolymer polypropylene as raw material.

[0074] The polyurethane foam tube made by this scheme can be used in low temperature environment, such as in Antarctica. The length can be customized according to demand. There is no need to punch holes on the polyurethane foam tube. It is safer and more effective to use. It has a simple structure and is easy to use and install.

[0075] like Figure 5 As shown, in the second aspect, the second embodiment, a one-step polyurethane foam tube production device in the first aspect is used to carry out a one-step polyurethane foam tube production process, wherein the following steps are included:

[0076] Step 1: Load the raw materials for making the inner tube 1001 into the feeding mechanism 200, start the polyurethane foam tube one-step production equipment through the control terminal to preheat, and the raw materials are transported into the inner tube extruder 300 through the discharge pipe;

[0077] Step 2: The inner tube extruder 300 extrude the inner tube 1001 of the required size, which is fixed and formed by the inner tube mold assembly 401, and then the inner tube sizing device 402 performs size finalization, post-cooling, secondary cooling, and coding;

[0078] Step 3: The cooled inner tube 1001 is pulled to the protective layer extruder 700 by the inner tube tractor 500, and the protective layer extruder 700 extrude the protective layer 1002 wrapped around the outer periphery of the inner tube 1001 and then enter the thermal insulation composite pipe mold assembly 801 for fixed molding, and then enter the vacuum eccentric shaping adjustment box 803 after the size is finalized by the thermal insulation composite pipe sizing device 802, and then the post-foaming machine 600 foams to generate the thermal insulation layer 1002 located between the inner tube 1001 and the protective layer 1004, and then the center degree is adjusted, cooled, and the coding is performed to form the thermal insulation composite pipe 1003;

[0079] Step 4: The thermal insulation composite pipe 1003 is pushed by the thermal insulation composite pipe traction machine 807 to the cutting machine 808 for cutting to form the thermal insulation pipe 1000;

[0080] In the process of manufacturing the polyurethane foam tube by the one-step polyurethane foam tube production process of the present scheme, the polyurethane foam tube can be processed without installing a fixed bracket, and the operation is simple.

[0081] In summary, the one-step polyurethane foam tube production equipment and production process of the present invention adopts the cooperation between the support mechanism and the feeding mechanism, inner tube extruder, inner tube processing mechanism, inner tube traction machine, foaming machine, protective layer extruder and insulation tube processing mechanism installed on the support mechanism to realize the one-step production process of polyurethane foam tube. The inner tube extruder, inner tube processing mechanism, protective layer extruder and insulation tube processing mechanism can be adjusted according to specific production needs to produce insulation tubes with different needs. The front and rear mechanisms can be adjusted to the position through the frame according to the plan, and the frames can be fixed and locked. After the entire production equipment is assembled, the entire production process is automatically operated on the assembly line. The structure is simple, easy to use, effectively improves work efficiency, and ensures the production quality of the product.

[0082] The above describes the specific embodiments of the invention. It should be understood that the invention is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; those skilled in the art can make various modifications or modifications within the scope of the claims, and make some simple deductions, deformations or substitutions, which does not affect the essence of the invention.

Claims

1. A one-step polyurethane foam tube production equipment, characterized in that: It comprises a supporting mechanism and a feeding mechanism installed on the supporting mechanism, an inner tube extruder, an inner tube processing mechanism, an inner tube traction machine, a foaming machine, a protective layer extruder, and an insulation tube processing mechanism; The discharge pipe of the feeding mechanism is connected to the feed port of the inner tube extruder; The inner tube extruder is arranged at the bottom of the feeding mechanism and is used to make the inner tube; The inner tube processing mechanism is arranged at one side of the inner tube extruder, and is used for processing the inner tube and then pulling it to the protective layer extruder by the inner tube pulling machine; The foaming machine is arranged at one side of the protective layer extruder, and is used to form a thermal insulation layer wrapped around the outer periphery of the inner tube, and the thermal insulation layer is a polyurethane thermal insulation layer; The protective layer extruder is arranged outside the inner tube processing mechanism and is used to form a protective layer wrapped around the thermal insulation layer to form a thermal insulation composite tube; The thermal insulation pipe processing mechanism is arranged on one side of the protective layer extruder, and is used to process the thermal insulation composite pipe to obtain the thermal insulation pipe; A control terminal is provided, wherein the control terminal is respectively connected to and controls the feeding mechanism, the inner tube extruder, the inner tube processing mechanism, the inner tube traction machine, the foaming machine, the protective layer extruder, and the insulation tube processing mechanism.

2. The one-step polyurethane foam tube production equipment according to claim 1, characterized in that: The control terminal is a PC or a mobile phone.

3. The one-step polyurethane foam tube production equipment according to claim 1, characterized in that: The support mechanism comprises a plurality of detachably connected brackets, and the bottoms of the feeding mechanism, the inner tube extruder, the inner tube processing mechanism, the inner tube traction machine, the foaming machine, the protective layer extruder, and the insulation tube processing mechanism are all equipped with the brackets; The front and rear ends of the bracket are respectively equipped with matching connecting pieces and locking pieces.

4. A one-step polyurethane foam tube production equipment as claimed in claim 3, characterized in that: The inner tube processing mechanism comprises an inner tube mold assembly, an inner tube sizing device, an inner tube cooling box, an inner tube secondary cooling box, and an inner tube inkjet printer which are sequentially installed on the top of the bracket; The inner tube die assembly is arranged on one side of the inner tube extruder and is used to shape the inner tube; The inner tube sizing device is used to sizing the shaped inner tube; The inner tube cooling box is used to cool the inner tube after sizing, and an inner tube cooler is installed in the inner tube cooling box; The inner tube secondary cooling box performs secondary cooling on the cooled inner tube, and an inner tube cooler is installed in the inner tube secondary cooling box; The inner tube inkjet printer is used to inkjet the inner tube after secondary cooling; The inner tube traction machine is used to pull the inner tube after coding to the foaming machine; An inner tube positioner is installed on the inner tube traction machine; The inner tube positioner is connected to the control terminal wirelessly for data exchange, and the control terminal is respectively connected to and controls the inner tube mold assembly, the inner tube sizing device, the inner tube cooler, and the inner tube inkjet printer.

5. The one-step polyurethane foam tube production equipment according to claim 4, characterized in that: The inner tube mold assembly comprises an inner tube upper mold, an inner tube lower mold, and an inner tube mold driver respectively connected to the inner tube upper mold and the inner tube lower mold, and the inner tube mold driver is installed on the bracket; The control terminal is connected to and controls the inner tube mold driver.

6. The one-step polyurethane foam tube production equipment according to claim 3, characterized in that: The insulation pipe processing mechanism comprises an insulation composite pipe mold assembly, an insulation composite pipe sizing device, a vacuum eccentric shaping adjustment box, a centering regulator, an insulation composite pipe cooling box, an insulation composite pipe inkjet printer, an insulation composite pipe traction machine, and a cutting machine which are sequentially installed on the top of the bracket; The thermal insulation composite pipe die assembly is arranged on one side of the protective layer extruder and is used to shape the thermal insulation composite pipe; The thermal insulation composite pipe sizing device is used to sizing the thermal insulation composite pipe that has been shaped; The vacuum eccentric shaping adjustment box is used to perform eccentric shaping adjustment on the thermal insulation composite pipe after sizing; The centering regulator is used to adjust the centering of the thermal insulation composite pipe after eccentric shaping adjustment; The thermal insulation composite pipe cooling box is used to cool the thermal insulation composite pipe after the center degree is adjusted, and a thermal insulation composite pipe cooler is installed in the thermal insulation composite pipe cooling box; The thermal insulation composite pipe inkjet printer is used to inkjet the thermal insulation composite pipe after cooling; The thermal insulation composite pipe traction machine is used to pull the thermal insulation composite pipe after coding to the cutting machine; The thermal insulation composite pipe traction machine is equipped with a thermal insulation composite pipe positioner; The thermal insulation composite pipe positioner is connected to the control terminal wirelessly for data exchange, and the control terminal is respectively connected to and controls the thermal insulation composite pipe mold assembly, the thermal insulation composite pipe sizing equipment, the thermal insulation composite pipe cooler, the thermal insulation composite pipe inkjet printer, the thermal insulation composite pipe traction machine, and the cutting machine.

7. A one-step polyurethane foam tube production equipment as claimed in claim 6, characterized in that: The thermal insulation composite pipe mold assembly comprises a thermal insulation composite pipe upper mold, a thermal insulation composite pipe lower mold, and a thermal insulation composite pipe mold driver respectively connected to the inner pipe upper mold and the inner pipe lower mold, and the thermal insulation composite pipe mold driver is installed on the bracket; The control terminal is connected to and controls the thermal insulation composite pipe mold driver.

8. The one-step polyurethane foam tube production equipment according to claim 7, characterized in that: It also comprises a storage rack, and the thermal insulation composite pipe is cut to make the thermal insulation pipe and placed on the storage rack.

9. The one-step polyurethane foam tube production equipment according to claim 1, characterized in that: The inner tube is a PPR inner tube, and the protective layer is a PE protective layer.

10. A one-step polyurethane foam tube production process using the one-step polyurethane foam tube production equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Load the raw materials for making the inner tube into the feeding mechanism, start the one-step polyurethane foam tube production equipment through the control terminal for preheating, and transport the raw materials into the inner tube extruder through the discharge pipe; Step 2: The inner tube extruder extrude the inner tube of the required size, which is fixed and formed by the inner tube mold assembly, and then the inner tube sizing equipment is used to finalize the size, cool, re-cool, and print the code; Step 3: The cooled inner tube is pulled to the protective layer extruder by the inner tube traction machine, and the protective layer extruder extrude the protective layer wrapped around the outer periphery of the inner tube and then enters the thermal insulation composite tube mold assembly for fixed molding, and then enters the vacuum eccentric molding adjustment box after the thermal insulation composite tube sizing equipment performs size finalization, and then enters the vacuum eccentric molding adjustment box, and the post-foaming machine foams to generate the thermal insulation layer between the inner tube and the protective layer, and then the center degree is adjusted, cooled, and printed to form the thermal insulation composite tube; Step 4: The thermal insulation composite pipe is pushed by the thermal insulation composite pipe traction machine to the cutting machine for cutting into the thermal insulation pipe.

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