A pipe extrusion die and extruder

Abstract

This invention relates to the technical field of pipe molds, and more specifically, to a pipe extrusion mold and extruder, comprising a flow-dividing component, an inner extrusion mold, an outer extrusion mold, a high-temperature resistant wire, an installation sleeve, and a pipe quality inspection component disposed within the installation sleeve. Both the inner and outer extrusion molds are connected to the flow-dividing component, and the installation sleeve is connected to the inner extrusion mold. The flow-dividing component has a flow-dividing cavity, and a cavity is provided between the inner and outer extrusion molds, with the flow-dividing cavity communicating with the cavity. The flow-dividing component has a power input terminal, and the installation sleeve has an in-pipe power terminal electrically connected to the pipe quality inspection component. The high-temperature resistant wire passes through the flow-dividing component and the inner extrusion mold, and the power input terminal and the in-pipe power terminal are electrically connected via the high-temperature resistant wire. This invention achieves long-term stable power supply for the extruded pipe quality monitoring equipment, eliminating the need for battery replacement and providing convenient and quick operation.

Description

Technical Field

[0001] This invention relates to the technical field of pipe molds, and more specifically, to a pipe extrusion mold and an extruder. Background Technology

[0002] UPVC pipes, PE pipes, and other plastic pipes are often manufactured using extrusion molding. This involves melting the plastic raw material, adding it to an extruder, guiding it into an extrusion die to form the shape, and finally cooling it to obtain the pipe. With increasingly stringent quality requirements for pipes, accurate quality control during the production process has become a crucial issue in the plastic pipe molding industry.

[0003] In the prior art, such as Chinese patent CN220923265U, an extrusion tube internal monitoring device is disclosed. This device includes an internal infrared detection sensor located at the die of the extruder for detecting the inner diameter of the tube, and an infrared detection control system located on the control panel of the extruder. Both the internal infrared detection sensor and the motor driving the screw of the extruder are signal-connected to the infrared detection control system. When the internal infrared detection sensor detects an abnormal inner diameter, it sends a signal to the infrared detection control system. The infrared detection control system receives and processes the signal, then sends a signal to the motor driving the screw of the extruder to control the motor speed and adjust the screw speed, maintaining the amount of tube extruded per unit time within a set range, thereby controlling the inner diameter of the tube and achieving quality control of the tube's internal structure. However, this detection device is powered by an internal battery, which cannot provide long-term effective power, and battery replacement is cumbersome. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies that rely on internal batteries to provide power, which cannot achieve long-term and effective power supply. This invention provides a pipe extrusion die and extruder that enable long-term and stable power supply for extruded pipe quality monitoring equipment, eliminating the need for battery replacement and making operation convenient and quick.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A pipe extrusion die is provided, comprising a flow-dividing component, an inner extrusion die, an outer extrusion die, a high-temperature resistant wire, an installation sleeve, and a pipe quality inspection component disposed within the installation sleeve. The inner and outer extrusion dies are both connected to the flow-dividing component, and the installation sleeve is connected to the inner extrusion die. The flow-dividing component has a flow-dividing cavity, and a cavity is provided between the inner and outer extrusion dies, with the flow-dividing cavity communicating with the cavity. A power input terminal is provided on the outer side of the flow-dividing component, and an internal pipe power terminal is provided on the inner side of the installation sleeve, electrically connected to the pipe quality inspection component. The high-temperature resistant wire passes through the flow-dividing component and the inner extrusion die, and the power input terminal and the internal pipe power terminal are electrically connected via the high-temperature resistant wire.

[0007] In the pipe extrusion die of this invention, both the inner and outer extrusion dies are connected to a flow distribution assembly. A mounting sleeve is fixed to the inner extrusion die. A high-temperature resistant wire connects the power input terminal on the flow distribution assembly to the pipe-use power terminal inside the mounting sleeve. The pipe-use power terminal is also connected to a pipe quality inspection component inside the mounting sleeve. During pipe forming, molten plastic material flows from the flow distribution chamber inside the flow distribution assembly into the cavity between the inner and outer extrusion dies, gradually forming a pipe within the cavity. The pipe quality inspection component, located in the mounting sleeve at the core of the pipe, is used to inspect the pipe's inner diameter, surface finish, etc. The high-temperature resistant wire passes through the flow distribution assembly and the inner extrusion die, completing the electrical connection between the power input terminal, the pipe-use power terminal, and the pipe quality inspection component. This provides a long-term stable power supply to the extruded pipe quality monitoring component, eliminating the need for battery replacement and offering convenient and quick operation.

[0008] Furthermore, the power supply input terminal is provided with a first input port and a second input port, and the in-pipe power supply terminal is provided with a first output port and a second output port. The first input port and the first output port are connected by the high-temperature resistant wire, the second input port is connected to the shunt assembly by the high-temperature resistant wire, and the second output port is connected to the mounting sleeve by the high-temperature resistant wire. The second input port is connected to the shunt assembly, and the second output port is connected to the mounting sleeve. The electrical connection between the second input port and the second output port is achieved through the conductivity of the mold itself, thereby avoiding the problem of short circuits that easily occur in dual-wire power supply in the high-temperature environment of the mold core.

[0009] Furthermore, a heat-resistant insulating sleeve is fitted over the outer surface of the high-temperature resistant wire. Adding a layer of heat-resistant insulating sleeve to the surface of the high-temperature resistant wire prevents short circuits caused by contact between the internal conductors and the mold after the surface of the high-temperature resistant wire melts, thus providing double-layer insulation protection.

[0010] Furthermore, the pipe extrusion die also includes a die connector, and the flow distribution assembly includes a flow distribution comb and a connecting seat for connecting the inner extrusion die and the outer extrusion die. The flow distribution comb is connected between the die connector and the connecting seat. The die connector has a feed inlet, which communicates with a flow distribution cavity located between the die connector and the flow distribution comb. The die connector is used to connect to the extruder and provides a stable installation position for the flow distribution comb. Molten plastic material flows into the flow distribution cavity from the feed inlet on the die connector. Under the action of the flow distribution comb, the flow distribution cavity is filled, facilitating subsequent entry into the mold cavity to complete pipe forming. One end of the connecting seat is fixedly connected to the flow distribution comb, and the other end provides an installation structure for the inner extrusion die and the outer extrusion die, realizing stable cooperation between the components within the die.

[0011] Furthermore, an outer mold sleeve connects the extrusion die and the flow divider. A connecting seat is disposed inside the outer mold sleeve. The connecting seat is frustum-shaped, and the distance between the connecting seat and the outer mold sleeve continuously decreases. The frustum-shaped connecting seat cooperates with the outer mold sleeve to form a flow channel with a continuously decreasing cross-sectional diameter between the outer mold sleeve and the connecting seat. This allows the molten plastic material to flow smoothly in the gap between the connecting seat and the extrusion die, resulting in a continuously decreasing thickness of the molten plastic material that slowly transitions to the required wall thickness of the pipe, preventing blockages during flow.

[0012] Furthermore, the flow divider includes a tapered flow divider head and a mounting portion. The mounting portion is disposed between the mold connector and the outer mold sleeve. The tapered flow divider head and the mounting portion are connected by multiple flow divider plates. The mounting portion has multiple sets of mounting holes. The mounting holes on the mounting portion, together with countersunk screws and other components, fix the flow divider between the mold connector and the outer mold sleeve. The tapered flow divider head divides a large stream of molten plastic material into multiple streams. The flow divider plates between the mounting portion and the tapered flow divider head further improve the flow dividing effect of the flow divider.

[0013] Furthermore, the mounting portion is provided with a first wire-connecting hole, and the tapered shunt head and the connecting seat are provided with a first wire-connecting cavity. The first wire-connecting hole and the first wire-connecting cavity are in communication, and the high-temperature resistant wire passes through the first wire-connecting hole and the first wire-connecting cavity. The high-temperature resistant wire passing through the first wire-connecting hole on the mounting portion and the first wire-connecting cavity on the connecting seat does not affect the shunt effect of the shunt comb, and also provides installation space for the power supply line.

[0014] Furthermore, it also includes a mandrel connected to the connecting seat, an inner extrusion die sleeved on the mandrel, and an installation sleeve connected to the mandrel. The mandrel contains a second wire-connecting cavity communicating with the first wire-connecting cavity, through which the high-temperature resistant wire passes. By providing a second wire-connecting cavity on the mandrel for the high-temperature resistant wire to pass through, a long-term stable power supply to the internal electrical terminals is achieved without affecting the tube forming effect between the inner and outer extrusion dies, thereby enabling real-time monitoring of the tube core quality.

[0015] Furthermore, it also includes a first heating coil and a second heating coil. The first heating coil is connected to the outer periphery of the flow distribution assembly, and the second heating coil is connected to the outer periphery of the extrusion die. The first and second heating coils keep the entire die at a high temperature, keeping the plastic material in a molten state within the die, allowing it to flow smoothly into the cavity to complete the pipe forming process.

[0016] The present invention also provides an extruder, including a frame, an extrusion assembly, a feed box, a pipe sizing die, a spray tank, and a pipe extrusion mold. The extrusion assembly and the pipe extrusion mold are both mounted on the frame. The feed box is connected to the extrusion assembly, and the extrusion assembly is connected to the pipe extrusion mold. One end of the pipe sizing die is connected to the pipe extrusion mold, and the other end is connected to the spray tank.

[0017] The extruder of this invention uses a frame to fix the positions of the pipe extrusion die and the extrusion assembly. The feed hopper introduces plastic material into the extrusion assembly, where it melts and is extruded to the pipe extrusion die to complete pipe forming. Finally, the outer diameter of the pipe is determined at the pipe sizing die and then cooled in a spray tank. During extrusion, a high-temperature resistant wire provides a stable power supply to the pipe quality inspection assembly located in the core of the pipe extrusion die, enabling control of the internal quality of the pipe during the forming process and timely detection of defective products.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. It achieves long-term stable power supply to the pipe quality inspection component in the core of the pipe, eliminating the need to replace batteries and making operation convenient and quick;

[0020] 2. The internal quality of the pipe can be controlled during the pipe forming process, and unqualified products can be detected in a timely manner;

[0021] 3. It avoids the problem of short circuits that are prone to occur when multiple power lines are connected in the high-temperature environment of the mold core, resulting in a long service life and a high safety factor. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of a pipe extrusion die;

[0023] Figure 2 for Figure 1 Sectional view at position AA;

[0024] Figure 3 for Figure 2 A magnified view of the area at position I in the middle;

[0025] Figure 4 for Figure 2 A magnified view of a portion of position II;

[0026] Figure 5 This is a schematic diagram of the structure of the first heating coil;

[0027] Figure 6 This is a schematic diagram of the flow divider structure;

[0028] Figure 7 for Figure 6 Sectional view of the BB position;

[0029] Figure 8 This is a schematic diagram of the outer mold sleeve.

[0030] Figure 9 for Figure 8 Sectional view at the CC position;

[0031] Figure 10 This is a schematic diagram of the connector structure;

[0032] Figure 11 for Figure 10 Sectional view of the DD position in the middle;

[0033] Figure 12 This is a schematic diagram of the mandrel structure;

[0034] Figure 13 for Figure 12 Sectional view of the EE location;

[0035] Figure 14 This is a schematic diagram of the extrusion inner mold structure;

[0036] Figure 15 This is a schematic diagram of the extrusion die structure;

[0037] Figure 16 A schematic diagram of the structure for installing the protective sleeve;

[0038] Figure 17 for Figure 16 Sectional view of the FF position;

[0039] Figure 18 A schematic diagram showing the connection between the power input terminal and the power supply terminal inside the pipe;

[0040] Figure 19 This is a schematic diagram of the extruder.

[0041] In the attached diagram: 100, Diverter assembly; 110, Diverter cavity; 120, Power input terminal; 121, First input port; 122, Second input port; 130, Mold connector; 131, Feed port; 140, Diverter comb; 141, Conical diverter head; 142, Mounting part; 143, Diverter plate; 144, Mounting hole; 145, First wire threading hole; 150, Connecting seat; 151, First wire threading cavity; 152, First fixing hole; 153, Connecting part; 160, First heating coil; 161, First through hole; 200, Extrusion inner mold; 210, Cavity; 220, Boss; 230, Second through hole; 300, Extrusion outer mold; 310, Second heating coil; 320, Outer mold sleeve; 321, Second fixing hole; 3 22. Adjustment hole; 323. Third fixing hole; 330. Flange step; 340. Outer mold locking flange; 400. High temperature resistant wire; 410. Heat-resistant insulating sleeve; 500. Mounting sleeve; 510. In-pipe electrical connection terminal; 511. First output port; 512. Second output port; 520. Second stringing hole; 530. Wiring screw; 540. Pipe joint; 550. Electrical connection window; 560. Detection component connection window; 600. Pipe quality detection component; 610. Mounting bracket; 700. Mandrel; 710. Second stringing cavity; 720. External thread; 730. Internal thread; 800. Frame; 810. Extrusion component; 820. Feed box; 830. Pipe sizing die; 840. Spray water tank. Detailed Implementation

[0042] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0043] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0044] Example 1

[0045] This embodiment is a first embodiment of a pipe extrusion die, including a flow distribution assembly 100, an inner extrusion die 200, an outer extrusion die 300, a high-temperature resistant wire 400, an installation sleeve 500, and a pipe quality inspection assembly 600 disposed within the installation sleeve 500. Both the inner extrusion die 200 and the outer extrusion die 300 are connected to the flow distribution assembly 100, and the installation sleeve 500 is connected to the inner extrusion die 200. The flow distribution assembly 100 has a flow distribution cavity 110, and the inner extrusion die 200... A cavity 210 is provided between the extrusion outer mold 300 and the flow distribution cavity 110, which is connected to the cavity 210. A power input terminal 120 is provided on the outside of the flow distribution assembly 100, and an internal power terminal 510, electrically connected to the pipe quality inspection assembly 600, is provided on the inside of the mounting sleeve 500. A high-temperature resistant wire 400 passes through the flow distribution assembly 100 and the extrusion inner mold 200, and the power input terminal 120 and the internal power terminal 510 are electrically connected via the high-temperature resistant wire 400. Figure 1 , Figure 2 As shown, both the inner extrusion die 200 and the outer extrusion die 300 are connected to the flow distribution assembly 100. The mounting sleeve 500 is fixed on the inner extrusion die 200. The power input terminal 120 on the flow distribution assembly 100 and the pipe-use power terminal 510 inside the mounting sleeve 500 are electrically connected via a high-temperature resistant wire 400. The pipe-use power terminal 510 is electrically connected to the pipe quality inspection assembly 600 inside the mounting sleeve 500. During the pipe forming process, molten plastic material flows from the flow distribution cavity 110 inside the flow distribution assembly 100 into the cavity 210 between the inner extrusion die 200 and the outer extrusion die 300, where it gradually forms a pipe. The pipe quality inspection component 600 is installed in the mounting sleeve 500 in the core of the pipe and is used to inspect the quality of the pipe, such as the inner diameter and smoothness. The high-temperature resistant wire 400 passes through the diverter 100 and the extrusion inner die 200, completing the electrical connection between the power input terminal 120, the power supply terminal 510 inside the pipe, and the pipe quality inspection component 600. This enables long-term stable power supply to the extruded pipe quality inspection component 600 without the need to replace batteries, making operation convenient and quick.

[0046] The power input terminal 120 is provided with a first input port 121 and a second input port 122, and the power supply terminal 510 inside the pipe is provided with a first output port 511 and a second output port 512. The first input port 121 and the first output port 511 are connected by a high-temperature resistant wire 400, the second input port 122 is connected to the shunt assembly 100 by the high-temperature resistant wire 400, and the second output port 512 is connected to the mounting sleeve 500 by the high-temperature resistant wire 400. Figure 3 , Figure 4 , Figure 18As shown, in this embodiment, the first input port 121 and the first output port 511 are directly connected by a high-temperature resistant wire 400. On the power input terminal 120, the second input port 122 is connected to the high-temperature resistant wire 400, and the wiring screw 530 fixes the high-temperature resistant wire 400 to the mold connector 130. On the power supply terminal 510 inside the pipe, the second output port 512 is connected to the high-temperature resistant wire 400, and the wiring screw 530 connects the high-temperature resistant wire 400 to the mounting sleeve 500. The current is transmitted through the conductivity of the mold itself, thereby avoiding short circuits caused by using dual-wire power supply in the high-temperature environment of the mold core.

[0047] The high-temperature resistant wire 400 is fitted with a heat-resistant insulating sleeve 410 on its outer surface. For example... Figure 3 As shown, in this embodiment, a high-temperature resistant wire 400 with good conductivity is selected, and a layer of ceramic heat-resistant insulating sleeve 410 is added to the high-temperature resistant wire 400 to prevent the wire from directly contacting the mold and causing a short circuit when the surface of the high-temperature resistant wire 400 melts at high temperature during long-term use, thus achieving a double-layer insulation effect.

[0048] The pipe extrusion die also includes a die connector 130. The flow distribution assembly 100 includes a flow distribution comb 140 and a connecting seat 150 for connecting the inner extrusion die 200 and the outer extrusion die 300. The flow distribution comb 140 is connected between the die connector 130 and the connecting seat 150. The die connector 130 is provided with an inlet 131, which communicates with the flow distribution cavity 110 located between the die connector 130 and the flow distribution comb 140. The die connector 130 has a flange-type structure and is provided with an inlet 131 connected to the flow distribution cavity 110 for connecting the flow distribution assembly 100 and the extruder. One end of the connecting seat 150 is fixedly connected to the flow distribution comb 140 by a countersunk screw, and the other end is connected to the inner extrusion die 200 by an internal thread. Molten plastic enters the flow distribution assembly 100 from the inlet 131, and is divided into multiple streams in the flow distribution cavity 110 under the action of the flow distribution comb 140, and finally flows into the mold cavity 210 for molding.

[0049] An outer mold sleeve 320 connects the extrusion outer mold 300 and the diverter comb 140. A connecting seat 150 is located inside the outer mold sleeve 320. The connecting seat 150 is frustoconical in shape, and the distance between the connecting seat 150 and the outer mold sleeve 320 continuously decreases. Figure 10 , Figure 11 As shown, the connecting seat 150 is a hollow frustum-shaped structure, installed at the rear end of the flow divider 140 and providing a mounting base for the extrusion inner mold 200. The distance between the outer mold sleeve 320 and the frustum-shaped connecting seat 150 continuously decreases, forming a flow channel with a continuously decreasing cross-sectional diameter. The molten plastic material can flow smoothly in the gap between the connecting seat 150 and the extrusion outer mold 300, so that the thickness of the molten plastic material continuously decreases and slowly transitions to the wall thickness required for the pipe, avoiding blockage during the flow process.

[0050] The diverter comb 140 includes a tapered diverter head 141 and a mounting portion 142. The mounting portion 142 is disposed between the mold connector head 130 and the outer mold sleeve 320. The tapered diverter head 141 and the mounting portion 142 are connected by multiple diverter plates 143. The mounting portion 142 is provided with multiple sets of mounting holes 144. Figure 6 , Figure 7 As shown, an installation part 142 is provided around the flow divider 140. The installation part 142 is connected to the mold connector 130 and the outer mold sleeve 320. The position of the flow divider 140 is fixed by screws through the installation holes 144. A conical flow divider head 141 is provided at the center of the flow divider 140. The flow divider cavity 110 is between the conical flow divider head 141 and the installation part 142. The flow divider plate 143 divides the flow divider cavity 110 into multiple extrusion channels.

[0051] The mounting part 142 is provided with a first wire-connecting hole 145, and the tapered splitter head 141 and the connecting seat 150 are provided with a first wire-connecting cavity 151. The first wire-connecting hole 145 and the first wire-connecting cavity 151 are connected, and the high-temperature resistant wire 400 passes through the first wire-connecting hole 145 and the first wire-connecting cavity 151. Figure 7 As shown, the conical shunt head 141 and the connecting seat 150 are provided with a first string cavity 151 for the high-temperature resistant wire 400 to pass through. The mounting part 142 and the shunt plate 143 are both provided with a first string hole 145 that communicates with the first string cavity 151. This does not affect the shunt effect of the shunt comb 140, and also provides installation space for the power supply line.

[0052] The working principle of the pipe extrusion die in this embodiment is as follows: During the pipe forming process, molten plastic material flows from the diversion cavity 110 inside the diversion component 100 into the cavity 210 between the inner extrusion die 200 and the outer extrusion die 300, and gradually forms a pipe in the cavity 210. The power input terminal 120 and the power supply terminal 510 inside the pipe are directly connected by a high-temperature resistant wire 400. The high-temperature resistant wire 400 passes through the diversion component 100 and the inner extrusion die 200 to supply power to the pipe quality inspection component 600 located inside the mounting sleeve 500.

[0053] Example 2

[0054] This embodiment is a second embodiment of a pipe extrusion die. This embodiment is similar to the first embodiment, except that it also includes a mandrel 700, which is connected to the connecting seat 150. An extrusion inner die 200 is sleeved on the mandrel 700, and a mounting sleeve 500 is connected to the mandrel 700. The mandrel 700 has a second wire-connecting cavity 710 that communicates with the first wire-connecting cavity 151, and a high-temperature resistant wire 400 passes through the second wire-connecting cavity 710. Figure 12 , Figure 13As shown, the mandrel 700 is a double-ended threaded hollow round bar structure. Inside, there is a second wire cavity 710 through which the high-temperature resistant wire 400 passes. One end of the second wire cavity 710 has an internal thread 730 for connection with the mounting sleeve 500. Both ends of the mandrel 700 have external threads 720, which connect to the connecting seat 150 and the locking nut, respectively. In this embodiment, the mandrel 700 achieves long-term stable power supply to the electrical terminal 510 inside the tube without affecting the tube forming effect between the inner extrusion die 200 and the outer extrusion die 300, thereby enabling real-time monitoring of the tube core quality.

[0055] In this embodiment, the extrusion inner mold 200, as... Figure 14 As shown, the interior is provided with a second through hole 230 for mounting the mandrel 700 and a boss 220 for positioning in conjunction with the connecting seat 150. In this embodiment, one end of the extrusion outer die 300 is connected to the outer die sleeve 320, and the other end is connected to the outer die locking flange 340. Figure 15 As shown, one end of the extrusion outer die 300 is provided with a flange step 330 that mates with the outer die locking flange 340. For example... Figure 8 , Figure 9 As shown, the outer mold sleeve 320 is a hollow flange structure. One end has a second fixing hole 321, which is fixedly connected to the flow distribution assembly 100 by screws; the other end has a third fixing hole 323, which is fixedly connected to the outer mold locking flange 340 by screws. An adjustment hole 322 is provided on the side wall of the outer mold sleeve 320. The circumferential position of the outer mold sleeve 320 is adjusted by cooperating with screws through the adjustment hole 322 to avoid eccentricity during the molding process.

[0056] The pipe extrusion die in this embodiment also includes a first heating coil 160 and a second heating coil 310. The first heating coil 160 is connected to the outer periphery of the flow distribution assembly 100, and the second heating coil 310 is connected to the outer periphery of the extrusion outer die 300. Figure 5 As shown, the first heating coil 160 has a first through hole 161 for the high-temperature resistant wire 400 to pass through. The first heating coil 160 and the second heating coil 310 keep the mold as a whole at a high temperature, so that the plastic material remains in a molten state in the mold and can flow smoothly into the cavity 210 to complete the forming process of the tube.

[0057] In this embodiment, the mounting sleeve 500 includes a pipe connector 540 connected to the core tube, a second wiring hole 520, a power connection window 550, a detection component connection window 560, and a mounting bracket 610 disposed inside the mounting sleeve 500. Figure 16 , Figure 17As shown, the mounting sleeve 500 is a hollow cylindrical structure. The threaded connection part on the pipe joint 540 connects to the core rod 700. The high-temperature resistant wire 400 passes through the second wire hole and enters the core rod 700. The power connection window 550 facilitates the adjustment of the line of the power connection terminal 510 inside the pipe. The mounting bracket 610 provides an installation position for the pipe quality inspection component 600. The inspection component wiring window 560 facilitates the installation of the pipe quality inspection component 600 into the mounting sleeve 500.

[0058] The working principle of the pipe extrusion die in this embodiment is as follows: The high-temperature resistant wire 400 in the mounting sleeve 500 enters the second wire cavity 710 inside the mandrel 700 through the second wire hole 520, passes through the first wire cavity 151 and the first wire hole 145 inside the diversion assembly 100, and finally passes out through the first through hole 161 on the first heating coil 160 and connects to the power input terminal 120.

[0059] Example 3

[0060] This embodiment is a first embodiment of an extruder, including a frame 800, an extrusion assembly 810, a feed box 820, a pipe sizing die 830, a spray tank 840, and a pipe extrusion mold. The extrusion assembly 810 and the pipe extrusion mold are both mounted on the frame 800. The feed box 820 is connected to the extrusion assembly 810, and the extrusion assembly 810 is connected to the pipe extrusion mold. One end of the pipe sizing die 830 is connected to the pipe extrusion mold, and the other end is connected to the spray tank 840. Figure 19 As shown, plastic material enters the extrusion assembly 810 from the feed box 820, melts in the extrusion assembly 810, and is extruded to the pipe extrusion die to complete pipe forming. Finally, the outer diameter of the pipe is determined at the pipe sizing die 830 and then enters the spray water tank 840 for cooling. During the operation of the extruder, a high-temperature resistant wire 400 provides a stable power supply to the pipe quality inspection assembly 600 located in the core of the pipe extrusion die, which can control the internal quality of the pipe during the pipe forming process and promptly detect unqualified products.

[0061] The working principle of the extruder in this embodiment is as follows: the plastic material enters the extrusion assembly 810 from the feed box 820, melts in the extrusion assembly 810 and is extruded to the pipe extrusion die to complete the pipe forming, and finally the outer diameter of the pipe is determined at the pipe sizing die 830 and enters the spray water tank 840 for cooling.

[0062] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pipe extrusion die, characterized in that, The device includes a flow distribution assembly (100), an inner extrusion die (200), an outer extrusion die (300), a high-temperature resistant wire (400), an installation sleeve (500), and a pipe quality inspection assembly (600) disposed within the installation sleeve (500). Both the inner extrusion die (200) and the outer extrusion die (300) are connected to the flow distribution assembly (100), and the installation sleeve (500) is connected to the inner extrusion die (200). The flow distribution assembly (100) has a flow distribution cavity (110), and a space is provided between the inner extrusion die (200) and the outer extrusion die (300). The cavity (210) is connected to the flow distribution cavity (110); the flow distribution assembly (100) is provided with a power input terminal (120) on the outside, and the mounting sleeve (500) is provided with an in-pipe power terminal (510) that is electrically connected to the pipe quality inspection assembly (600) on the inside; the high-temperature resistant wire (400) passes through the flow distribution assembly (100) and the extrusion inner mold (200); the power input terminal (120) and the in-pipe power terminal (510) are electrically connected through the high-temperature resistant wire (400); the power supply... The input terminal (120) is provided with a first input port (121) and a second input port (122), and the in-pipe power terminal (510) is provided with a first output port (511) and a second output port (512). The first input port (121) and the first output port (511) are connected by the high-temperature resistant wire (400). The second input port (122) is connected to the shunt assembly (100) by the high-temperature resistant wire (400). The second output port (512) is connected to the mounting sleeve (500) by the high-temperature resistant wire (400). The pipe extrusion die also includes a die connector (130), and the flow distribution assembly (100) includes a flow distribution comb (140) and a connecting seat (150) for connecting the inner extrusion die (200) and the outer extrusion die (300). The flow distribution comb (140) is connected between the die connector (130) and the connecting seat (150). The die connector (130) is provided with an inlet (131), and the inlet (131) communicates with the flow distribution cavity (110) provided between the die connector (130) and the flow distribution comb (140).

2. The pipe extrusion die according to claim 1, characterized in that, The high-temperature resistant wire (400) is fitted with a heat-resistant insulating sleeve (410) on its outer surface.

3. The pipe extrusion die according to claim 1, characterized in that, An outer mold sleeve (320) is connected between the extrusion outer mold (300) and the diverter comb (140). The connecting seat (150) is disposed inside the outer mold sleeve (320). The connecting seat (150) is frustum-shaped and the distance between the connecting seat (150) and the outer mold sleeve (320) continuously decreases.

4. A pipe extrusion die according to claim 3, characterized in that, The diverter comb (140) includes a tapered diverter head (141) and a mounting part (142). The mounting part (142) is disposed between the mold connector (130) and the outer mold sleeve (320). The tapered diverter head (141) and the mounting part (142) are connected by multiple diverter plates (143). The mounting part (142) is provided with multiple sets of mounting holes (144).

5. A pipe extrusion die according to claim 4, characterized in that, The mounting part (142) is provided with a first wire-connecting hole (145), and the tapered splitter head (141) and the connecting seat (150) are provided with a first wire-connecting cavity (151). The first wire-connecting hole (145) and the first wire-connecting cavity (151) are connected, and the high-temperature resistant wire (400) passes through the first wire-connecting hole (145) and the first wire-connecting cavity (151).

6. A pipe extrusion die according to claim 5, characterized in that, It also includes a mandrel (700), which is connected to the connecting seat (150), the extrusion inner mold (200) is sleeved on the mandrel (700), the mounting sleeve (500) is connected to the mandrel (700), and the mandrel (700) has a second wire-connecting cavity (710) communicating with the first wire-connecting cavity (151), through which the high-temperature resistant wire (400) passes.

7. A pipe extrusion die according to any one of claims 1 to 6, characterized in that, It also includes a first heating coil (160) and a second heating coil (310), the first heating coil (160) being connected to the outer periphery of the flow divider assembly (100) and the second heating coil (310) being connected to the outer periphery of the extrusion die (300).

8. An extruder, characterized in that, The device includes a frame (800), an extrusion assembly (810), a feed box (820), a pipe sizing die (830), a spray tank (840), and a pipe extrusion die as described in any one of claims 1 to 7. The extrusion assembly (810) and the pipe extrusion die are both mounted on the frame (800). The feed box (820) is connected to the extrusion assembly (810). The extrusion assembly (810) is connected to the pipe extrusion die. One end of the pipe sizing die (830) is connected to the pipe extrusion die, and the other end is connected to the spray tank (840).

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