Photovoltaic system wire harness insulating layer integrated extrusion molding module and device

Abstract

The invention relates to a photovoltaic system wire harness insulating layer integrated extrusion molding module and device, the module comprises an outer die, a die core and a die sleeve, the die sleeve is fixedly sleeved with a condensation sleeve, the inner wall of the condensation sleeve is provided with an annular cavity, and a condensation pipe for temperature control is coiled in the annular cavity; an inner sleeve is inserted into the mold core, the front end of the inner sleeve is connected with a scraping piece, the tail of the inner sleeve is provided with a connecting pipe section, and a spiral groove is formed outside the connecting pipe section; a threaded hole is formed in the side face of the power pipe, a sliding screw pin is in threaded connection with the interior of the threaded hole, and the sliding screw pin is in sliding connection with the spiral groove. The power pipe is driven by the driving assembly to move in the axial direction. Under the condition that the inner layer, the outer layer, the front section and the rear section of the cable sheath keep the molten material flowing state, heat exchange between the mold core and the mold sleeve is accelerated, the temperature difference between the inner layer and the outer layer is reduced, internal stress accumulation is effectively restrained, the micro-crack occurrence rate is reduced, it is guaranteed that the cable sheath is compact and smooth in structure, and air holes, cold material inclusion and other defects are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable manufacturing machinery, and particularly to an integrated extrusion module and device for the insulation layer of a wire harness in a photovoltaic system. Background Art

[0002] With the expansion of the scale of photovoltaic power stations and the improvement of system integration, as the core carrier for power transmission, the manufacturing quality of the insulation layer of wire harnesses directly affects the system safety and service life. In the traditional extrusion process for the insulation layer of photovoltaic cables, after the molten material is formed through the die cavity, it is often shaped by external cooling. However, due to the relatively large thickness of the insulation layer of photovoltaic cables, external heat dissipation easily leads to differences in the cooling rates between the inner and outer layers, causing stress accumulation inside the material and generating microcracks during long-term operation, thereby reducing the insulation performance. In addition, the inner wall of the die cavity is prone to residual cured material, and the traditional scraper cleaning device easily interferes with the flow state of the molten material, resulting in problems such as a decrease in the interlayer bonding force and an increase in surface roughness. Therefore, there is an urgent need to develop an integrated extrusion module that can achieve precise temperature control, dynamic cleaning, and does not interfere with the material flow to meet the high reliability requirements of photovoltaic cables. Summary of the Invention

[0003] I. Technical Problems to be Solved

[0004] The purpose of the present invention is to provide an integrated extrusion module and device for the insulation layer of a wire harness in a photovoltaic system, which can achieve precise temperature control, dynamic cleaning, and form a cable or wire harness sheath without interfering with the flow of the molten material.

[0005] II. Technical Solutions

[0006] The present invention is achieved through the following technical solutions:

[0007] According to the first aspect of the present invention, there is provided an integrated extrusion module for the insulation layer of a wire harness in a photovoltaic system, including an outer die, a die core, and a die sleeve. The die core is inserted into the outer die, the die sleeve is fixed to the front end of the outer die, and a cavity is formed between the outer die and the die core and the die sleeve. A circulation hole communicating with the cavity is provided on the outer die. A condensation sleeve is fixedly sleeved outside the die sleeve, and an annular cavity is provided on the inner wall of the condensation sleeve. A condensation pipe for temperature control is coiled in the annular cavity. An inner sleeve is inserted into the die core. The front end of the inner sleeve extends between the die core and the die sleeve and is fixedly connected with a scraping member. The tail of the inner sleeve has a connecting pipe section, and a spiral groove is provided on the outside of the connecting pipe section. A power pipe is inserted between the die core and the connecting pipe section from the tail of the die core. A threaded hole is provided on the side of the power pipe, and a sliding screw pin is threadedly connected in the threaded hole. The end of the sliding screw pin extends into the spiral groove and is slidably connected with the spiral groove. The power pipe is driven by a driving component to move axially, so as to drive the scraping member to move between the inner wall of the die sleeve and the outer wall of the die core.

[0008] According to an embodiment of the present invention, a guiding groove is provided on the inner wall of the core. The guiding groove includes two parallel annular groove segments and a straight groove segment connecting the two annular groove segments. The length direction of the straight groove segment is parallel to the axial direction of the inner sleeve. The axial distance between the two annular groove segments is equal to the axial distance between the core and the die sleeve. A positioning disk is fixedly connected to the outer wall of the inner sleeve, and a guiding protrusion is fixedly connected to the outer wall of the positioning disk. The guiding protrusion is slidably connected to the guiding groove.

[0009] According to an embodiment of the present invention, the tail of the core extends out of the outer die and is provided with an external thread. A substrate with a central opening is sleeved outside the core. Locking nuts are respectively arranged on both sides of the substrate and are threadedly connected to the tail of the core. The driving assembly is fixed on the substrate.

[0010] According to an embodiment of the present invention, the core includes a core head and a core tube. The tail of the core head is threadedly connected to the inner wall of the core tube. The tail of the core tube extends out of the outer die and is provided with an external thread for threaded connection with the locking nut.

[0011] According to an embodiment of the present invention, a screw hole is provided on the end face of the outer die. A stud is threadedly connected in the screw hole. Through holes are provided on both sides of the substrate. The stud passes through the through holes, and locking nuts are threadedly connected to the external threads of the studs on both sides of the substrate.

[0012] According to an embodiment of the present invention, sliding ridges are arranged along the axial direction on the inner wall of the core tube, and sliding grooves are provided on the outer wall of the power tube. The sliding ridges are slidably connected to the sliding grooves.

[0013] According to an embodiment of the present invention, the driving assembly includes a motor fixed on the substrate, a rotating rod fixedly connected to the output end of the motor, and a connecting rod whose two ends are respectively rotatably connected to the rotating rod and the side surface of the power tube.

[0014] According to an embodiment of the present invention, the scraping member includes a front ring and a rear ring coaxial with the inner sleeve. The front ring is located on the front side of the end face of the inner sleeve, and the rear ring is located outside the inner sleeve. The diameter of the rear ring is larger than that of the front ring. A plurality of straight rods are circumferentially and equally spaced between the front ring and the front end face of the inner sleeve, and a plurality of inclined rods are circumferentially and equally spaced between the rear ring and the front ring. The inclination angle of the inclined rods is equal to the inclination angles of the inner wall surface of the die sleeve and the outer surface of the core head.

[0015] According to an embodiment of the present invention, a die head is sleeved outside the condensation sleeve. The die head is detachably connected to the front end of the outer die, and the condensation sleeve is fixed to the die head by bolts.

[0016] According to another aspect of the present invention, the present invention provides a plasticizing device for the integrated insulation layer of a photovoltaic system wire harness, including an integrated extrusion molding module for the insulation layer of the photovoltaic system wire harness, an extruder, and a wire combiner; the flow hole of the integrated extrusion molding module for the insulation layer of the photovoltaic system wire harness is communicated with the discharge port of the extruder, and the wire harness passes through the die core after being combined by the wire combiner.

[0017] III. Beneficial Effects

[0018] One or more of the above embodiments have the following advantages or beneficial effects:

[0019] 1. Through the integrated extrusion molding module for the insulation layer of the photovoltaic system wire harness in the embodiment of the present invention, a spiral condensation pipe is arranged in the annular cavity of the condensation sleeve, and combined with the contact cooling of the outer wall of the die sleeve, a gradient cooling field from the outside to the inside is formed. Compared with the traditional external air cooling, it accelerates the shaping of the thick cable sheath and shortens the sheath curing time.

[0020] 2. The driving component drives the axial movement of the power pipe, and the power pipe drives the inner sleeve to move. Under the limiting action of the guiding groove, the scraping part experiences three stages: rotating on the outer wall of the die core, axially translating, and rotating on the inner wall of the die sleeve. By means of weak turbulent flow, it accelerates heat conduction, clears the accumulation of solidified material, and reduces the incidence of burrs; when the scraping part moves axially in the same direction as the molten material, it promotes the heat convection between the front and rear sections, reduces the defect of cold material inclusion; when the inner and outer layers and the front and rear sections of the cable sheath maintain the flowing state of the molten material, it accelerates the heat exchange between the die core and the die sleeve, reduces the temperature difference between the inner and outer layers, effectively inhibits the accumulation of internal stress, reduces the incidence of microcracks, ensures the dense and smooth structure of the cable sheath, and reduces defects such as air holes and cold material inclusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Through the following description of the embodiments of the present invention with reference to the drawings, the above content and other objects, features and advantages of the present invention will become clearer. In the drawings:

[0022] Figure 1 is an exploded view of an integrated extrusion molding module for the insulation layer of a photovoltaic system wire harness;

[0023] Figure 2 is a cross-sectional structural schematic diagram of an integrated extrusion molding module for the insulation layer of a photovoltaic system wire harness;

[0024] Figure 3 is Figure 2 a partial enlarged view of part A in

[0025] Figure 4 is a cross-sectional structural schematic diagram of the connection between the inner sleeve, the power pipe and the die core;

[0026] Figure 5 is a structural schematic diagram of the inner sleeve;

[0027] Figure 6 It is a schematic structural diagram of a power tube;

[0028] Figure 7 It is a schematic structural diagram of an integrated extrusion device for the insulation layer of a photovoltaic system wire harness;

[0029] 1. Outer die; 1a. Flow hole; 1b. Screw hole;

[0030] 2. Die core; 21. Core head; 22. Core tube;

[0031] 2a. Guide groove; 2a1. Annular groove section; 2a2. Straight groove section; 2b. Sliding rib;

[0032] 3. Die sleeve;

[0033] 4. Condensing sleeve; 4a. Annular cavity;

[0034] 5. Condensing tube;

[0035] 6. Inner sleeve; 61. Connecting pipe section; 61a. Spiral groove; 62. Positioning disk; 62a. Guide protrusion;

[0036] 7. Scraping part; 71. Front ring; 72. Rear ring; 73. Straight rod; 74. Inclined rod;

[0037] 8. Power tube; 8a. Threaded hole; 8b. Sliding groove;

[0038] 9. Sliding screw pin;

[0039] 10. Driving assembly; 101. Motor; 102. Rotating rod; 103. Connecting rod;

[0040] 11. Substrate; 11a. Perforation;

[0041] 12. Locking big nut;

[0042] 13. Stud;

[0043] 14. Locking small nut;

[0044] 15. Extrusion machine;

[0045] 16. Wire combiner;

[0046] 17. Die head. Specific implementation mode

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] It should be noted that in the drawings, for the purpose of clarity and / or description, the sizes and relative sizes of elements may be enlarged. Thus, the sizes and relative sizes of the respective elements need not be limited to the sizes and relative sizes shown in the figures. In the specification and the drawings, the same or similar reference numerals indicate the same or similar components.

[0049] When an element is described as being "on", "connected to", or "coupled to" another element, the element may be directly on, directly connected to, or directly coupled to the other element, or there may be intervening elements. However, when an element is described as being "directly on", "directly connected to", or "directly coupled to" another element, there are no intervening elements. Other terms and / or expressions used to describe the relationship between elements should be interpreted in a similar manner, for example, "between" versus "directly between", "adjacent" versus "directly adjacent", or "on" versus "directly on", etc. In addition, the term "connected" may refer to physical connection, electrical connection, communication connection, and / or fluid connection.

[0050] It should be noted that although terms such as "first", "second", etc. may be used herein to describe various components, members, elements, regions, layers, and / or parts, these components, members, elements, regions, layers, and / or parts should not be limited by these terms. Instead, these terms are used to distinguish one component, member, element, region, layer, and / or part from another. Thus, for example, the first component, first member, first element, first region, first layer, and / or first part discussed below may be referred to as the second component, second member, second element, second region, second layer, and / or second part without departing from the teachings of the present invention.

[0051] For ease of description, spatial relationship terms, such as "above", "below", "left", "right", etc. may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures. It should be understood that the spatial relationship terms are intended to cover other different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, an element described as being "under" or "below" another element or feature will be oriented "above" or "on top of" the other element or feature.

[0052] Example 1:

[0053] An embodiment of the present invention provides an integrated extrusion module for the insulating layer of a photovoltaic system harness, which at least includes an outer die 1, a die core 2, and a die sleeve 3. Among them, the die core 2 is inserted into the outer die 1, the die sleeve 3 is fixed to the front end of the outer die 1, a cavity is formed between the outer die 1, the die core 2, and the die sleeve 3, and a flow hole 1a communicating with the cavity is opened on the outer die 1. The flow hole 1a introduces molten material into the cavity and forms a shape at the front end of the die core 2 to wrap around the outside of the harness or cable.

[0054] A condensing sleeve 4 is fixedly sleeved outside the die sleeve 3. An annular cavity 4a is opened on the inner wall of the condensing sleeve 4, and a condensing pipe 5 for temperature control is coiled in the annular cavity 4a. Among them, a die head 17 is sleeved outside the condensing sleeve 4. The die head 17 is detachably connected to the front end of the outer die 1, the condensing sleeve 4 is fixed to the die head 17 by bolts, and the die head 17 is fixedly connected to the outer die 1. The condensing pipe 5 reduces the temperature of part of the die sleeve 3 outside the die sleeve 3, reduces the temperature of the cable sheath, and accelerates the shaping speed of the cable sheath; it reduces the problem of uneven cooling caused by the slow internal heat dissipation of the relatively thick cable sheath during external heat dissipation, the accumulation of internal stress of the material, and the possible generation of microcracks during long-term operation.

[0055] In the present invention, an inner sleeve 6 is inserted into the die core 2. The front end of the inner sleeve 6 extends between the die core 2 and the die sleeve 3 and is fixedly connected with a scraping member 7. The tail of the inner sleeve 6 has a connecting pipe section 61, and a spiral groove 61a is arranged outside the connecting pipe section 61; it also includes a power pipe 8 inserted between the die core 2 and the connecting pipe section 61 from the tail of the die core 2. A threaded hole 8a is opened on the side of the power pipe 8, and a sliding screw pin 9 is threadedly connected in the threaded hole 8a. The end of the sliding screw pin 9 extends into the spiral groove 61a and is slidably connected with the spiral groove 61a; the power pipe 8 is driven by a driving component 10 to move axially. When the power pipe 8 moves, it drives the sliding screw pin 9 to move. The sliding screw pin 9 slides in the spiral groove 61a and can drive the inner sleeve 6 to rotate. The inner sleeve 6 drives the scraping member 7 to move between the inner wall of the die sleeve 3 and the outer wall of the die core 2;

[0056] Among them, a guiding groove 2a is arranged on the inner wall of the die core 2. The guiding groove 2a includes two parallel annular groove sections 2a1 and a straight groove section 2a2 connecting between the two annular groove sections 2a1. The length direction of the straight groove section 2a2 is parallel to the axial direction of the inner sleeve 6. The axial distance between the two annular groove sections 2a1 is equal to the axial distance between the die core 2 and the die sleeve 3; a positioning disk 62 is fixedly connected to the outer wall of the inner sleeve 6, and a guiding protrusion 62a is fixedly connected to the outer wall of the positioning disk 62. The guiding protrusion 62a is slidably connected with the guiding groove 2a. When the power pipe 8 moves axially, the sliding screw pin 9 slides in the spiral groove 61a.

[0057] In the initial position, the guiding projection 62a of the positioning disk 62 is located in the annular groove section 2a1 on the side away from the die sleeve 3. Due to the limitation of the annular groove section 2a1, the inner sleeve 6 cannot move axially but will rotate. At this time, the scraping member 7 contacts and rotates on the outer wall of the head of the die core 2; when the guiding projection 62a rotates to the junction of the straight groove section 2a2 and the annular groove section 2a1, the guiding projection 62a slides into the straight groove section 2a2. Due to the limitation of the straight groove section 2a2, the inner sleeve 6 cannot rotate, and the sliding screw pin 9 cannot move in the spiral groove 61a. The inner sleeve 6 moves axially synchronously with the power tube 8 until the guiding projection 62a moves into another annular groove section 2a1. At this time, the scraping member 7 contacts the inner wall of the die sleeve 3; when the guiding projection 62a enters another annular groove section 2a1, due to the limitation of the annular groove section 2a1, the inner sleeve 6 cannot move axially but will rotate. At this time, the scraping member 7 rotates on the inner wall of the die sleeve 3.

[0058] Therefore, when the power tube 8 moves axially towards the die sleeve 3, the scraping member 7 experiences three stages: rotating on the outer wall surface of the head of the die core 2, linearly moving from the surface of the head of the die core 2 to fit the inner wall surface of the die sleeve 3, and rotating on the inner wall surface of the die sleeve 3.

[0059] In the first stage, the scraping member 7 rotates on the outer wall surface of the head of the die core 2 to clean the molten material accumulated on the surface of the die core 2, avoid the formation of protrusions or burrs due to the solidification of the material at the front end of the die core 2, and form a weak turbulent flow near the outer wall of the die core 2. Without affecting the flow state of the molten material, it accelerates the heat exchange between the die core 2 and the die sleeve 3.

[0060] In the second stage, the scraping member 7 linearly moves to the inner wall surface of the die sleeve 3. During this process, the scraping member 7 does not rotate, reducing the influence on the flow state of the molten material and preventing material stratification or interface weakening caused by sudden changes in the movement path. The moving direction of the scraping member 7 coincides with the flow path of the molten material, which can accelerate the heat exchange between the front and rear cable sheaths in the axial direction, making the hotter molten material located at the rear move towards the colder molten material near the die sleeve 3 and reducing the structural defects caused by cold material inclusion.

[0061] In the third stage, the scraping member 7 rotates on the inner wall surface of the die sleeve 3. At a lower temperature near the die sleeve 3, the molten material is prone to accumulate. At this time, the rotating scraping member 7 refines the molten material on the inner wall of the die sleeve 3, reducing surface ripples or depressions caused by cooling shrinkage and ensuring the smoothness of the outer wall of the wire harness or cable sheath; and a weak turbulent flow is formed near the inner wall of the die sleeve 3. Without affecting the flow state of the molten material, it accelerates the heat exchange between the die core 2 and the die sleeve 3.

[0062] The three-stage linkage enables the scraping member 7 to axially move and circumferentially rotate between the inner wall of the die sleeve 3 and the outer wall of the die core 2. Under the condition of keeping the molten material in a flowing state, the heat exchange between the die core 2 and the die sleeve 3 is accelerated between the inner and outer layers and the front and rear sections of the cable sheath, ensuring that the cable sheath structure is dense and smooth, and reducing defects such as air holes and cold material inclusions.

[0063] Embodiment 2:

[0064] An embodiment of the present invention provides an integrated extrusion module for the insulating layer of a photovoltaic system wiring harness. On the basis of Embodiment 1, the tail of the die core 2 extends outside the outer die 1 and is provided with an external thread. A substrate 11 with a central opening is sleeved outside the die core 2. Locking nuts 12 for threaded connection with the tail of the die core 2 are respectively arranged on both sides of the substrate 11, and the driving assembly 10 is fixed on the substrate 11. Specifically, by rotating the locking nuts 12, the position of the substrate 11 can be changed, thereby precisely adjusting the moving area of the power tube 8.

[0065] In addition, the die core 2 includes a core head 21 and a core tube 22. The tail of the core head 21 is threadedly connected to the inner wall of the core tube 22, and the tail of the core tube 22 extends outside the outer die 1 and is provided with an external thread for threaded connection with the locking nut 12. By rotating the core head 21, the position of the core head 21 can be changed, the width of the cavity between the die core 2 and the die sleeve 3 can be adjusted, and the thickness of the formed cable outer sheath can be changed.

[0066] A screw hole 1b is provided on the end face of the outer die 1, a stud 13 is threadedly connected in the screw hole 1b, through holes 11a are provided on both sides of the substrate 11, and the stud 13 passes through the through holes 11a, and locking nuts 14 are threadedly connected to the outside of the stud 13 on both sides of the substrate 11. Through the cooperation of the stud 13 and the locking nuts 14, the stability of the substrate 11 is further maintained.

[0067] A sliding rib 2b is axially arranged on the inner wall of the core tube 22, a sliding groove 8b is provided on the outer wall of the power tube 8, and the sliding rib 2b is slidably connected to the sliding groove 8b. The driving assembly 10 includes a motor 101 fixed on the substrate 11, a rotating rod 102 fixedly connected to the output end of the motor 101, and a connecting rod 103 with both ends rotatably connected to the rotating rod 102 and the side of the power tube respectively. The motor 101 drives the rotating rod 102 and the connecting rod 103 to rotate, thereby driving the power tube 8 to linearly move axially, forming a crank and connecting rod 103 mechanism. During the rotation of the motor 101, the power tube 8 moves back and forth axially, so that the scraping member 7 reciprocally axially moves between the outer wall of the die core 2 and the inner wall of the die sleeve 3 and circumferentially rotates while adhering to the wall surface, continuously controlling and improving the quality of the formed cable sheath.

[0068] In addition, the driving assembly 10 can also be a cylinder or a linear module, and the cylinder or the linear module is fixedly connected to the side of the power tube 8 to drive the power tube 8 to move axially.

[0069] The scraping member 7 includes a front ring 71 and a rear ring 72 coaxially arranged with the inner sleeve 6. The front ring 71 is located on the front side of the front end face of the inner sleeve 6, and the rear ring 72 is located outside the inner sleeve 6. The diameter of the rear ring 72 is larger than that of the front ring 71. A plurality of straight rods 73 are circumferentially and equally spaced between the front ring 71 and the front end face of the inner sleeve 6. A plurality of inclined rods 74 are circumferentially and equally spaced between the rear ring 72 and the front ring 71. The inclination angle of the inclined rods 74 is equal to the inclination angles of the inner wall surface of the die sleeve 3 and the outer surface of the head of the die core 2. The front ring 71, the rear ring 72, the straight rods 73, and the inclined rods 74 are made of slender metal rods to ensure a relatively low influence on the heat conductivity and the flow state control of the molten material. The plurality of inclined rods 74 can effectively and sufficiently scrape the outer wall of the die core 2 and the inner wall of the die sleeve 3.

[0070] Embodiment 3:

[0071] The present invention provides a photovoltaic system wire harness insulation layer integrated plasticizing device, as Figure 7 shown, which includes a photovoltaic system wire harness insulation layer integrated extrusion module as in Embodiment 1 or 2, an extruder 15, and a wire combiner 16. The flow hole 1a of the photovoltaic system wire harness insulation layer integrated extrusion module is communicated with the discharge port of the extruder 15. The wire harness passes through the wire combiner 16 and then passes through the die core 2.

[0072] It should be understood that the cutting device according to the embodiments of the present invention has all the characteristics and advantages of the above alignment mechanism. For details, reference can be made to the above description and will not be elaborated here.

[0073] Those skilled in the art can understand that the features described in the various embodiments of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features described in the various embodiments of the present invention can be combined and combined in various ways. All such combinations and combinations fall within the scope of the present invention.

Claims

1. An integrated extrusion module for the insulation layer of a wire harness in a photovoltaic system, comprising an outer mold, a mold core, and a mold sleeve. The mold core is inserted into the outer mold, the mold sleeve is fixed to the front end of the outer mold, a cavity is formed between the outer mold and the mold core and the mold sleeve, and a flow hole communicating with the cavity is provided on the outer mold, characterized in that, A condensation sleeve is fixedly sleeved outside the die sleeve. An annular cavity is formed in the inner wall of the condensation sleeve, and a condensation pipe for temperature control is coiled in the annular cavity. An inner sleeve is inserted into the die core. The front end of the inner sleeve extends between the die core and the die sleeve and is fixedly connected with a scraping member. The tail of the inner sleeve has a connecting pipe section, and a spiral groove is arranged outside the connecting pipe section. A power pipe is inserted between the die core and the connecting pipe section from the tail of the die core. A threaded hole is formed in the side surface of the power pipe, and a sliding screw pin is in threaded connection with the threaded hole. The end of the sliding screw pin extends into the spiral groove and is slidably connected with the spiral groove. The power pipe is driven by a driving assembly to move axially, so as to drive the scraping member to move between the inner wall of the die sleeve and the outer wall of the die core.

2. The integrated extrusion module for the insulation layer of the wire harness of a photovoltaic system according to claim 1, wherein Guide grooves are arranged on the inner wall of the die core. The guide grooves include two parallel annular groove sections and a straight groove section connecting the two annular groove sections. The length direction of the straight groove section is parallel to the axial direction of the inner sleeve. The axial distance between the two annular groove sections is equal to the axial distance between the die core and the die sleeve. A positioning disk is fixedly connected to the outer wall of the inner sleeve, and a guide protrusion is fixedly connected to the outer wall of the positioning disk. The guide protrusion is slidably connected with the guide groove.

3. The integrated extrusion module for the insulation layer of the wire harness of a photovoltaic system according to claim 2, wherein, The tail of the die core extends out of the outer die and is provided with an external thread. A substrate with a central opening is sleeved outside the die core. Locking nuts are respectively arranged on both sides of the substrate and are in threaded connection with the tail of the die core. The driving assembly is fixed on the substrate.

4. A photovoltaic system wire harness insulation layer integrated extrusion module according to claim 3, characterized in that, The die core includes a core head and a core tube. The tail of the core head is in threaded connection with the inner wall of the core tube. The tail of the core tube extends out of the outer die and is provided with an external thread for threaded connection with the locking nut.

5. A photovoltaic system wire harness insulation layer integrated extrusion module according to claim 4, characterized in that, A screw hole is formed in the end face of the outer die, and a stud is in threaded connection with the screw hole. Through holes are formed on both sides of the substrate. The stud passes through the through holes, and locking nuts are in threaded connection with the external threads of the stud on both sides of the substrate.

6. The integrated extrusion module for the insulating layer of the wire harness of a photovoltaic system according to claim 4, wherein, Sliding ridges are arranged along the axial direction of the inner wall of the core tube. A sliding groove is formed in the outer wall of the power pipe. The sliding ridges are slidably connected with the sliding groove.

7. A photovoltaic system wire harness insulation layer integrated extrusion module according to claim 6, characterized in that, The driving assembly includes a motor fixed on the substrate, a rotating rod fixedly connected to the output end of the motor, and a connecting rod with two ends respectively rotatably connected to the rotating rod and the side surface of the power pipe.

8. A photovoltaic system wire harness insulation layer integrated extrusion module according to claim 1 or 2, characterized in that, The scraping member includes a front ring and a rear ring coaxial with the inner sleeve. The front ring is located on the front side of the front end face of the inner sleeve, and the rear ring is located outside the inner sleeve. The diameter of the rear ring is larger than that of the front ring. A plurality of straight rods are circumferentially and equally spaced between the front ring and the front end face of the inner sleeve. A plurality of inclined rods are circumferentially and equally spaced between the rear ring and the front ring. The inclination angle of the inclined rods is equal to the inclination angles of the inner wall surface of the die sleeve and the outer surface of the head of the die core.

9. The integrated extrusion module for the insulating layer of the wire harness of a photovoltaic system according to claim 1, characterized in that, A die head is sleeved outside the condensation sleeve. The die head is detachably connected to the front end of the outer die, and the condensation sleeve is fixed to the die head by bolts.

10. A photovoltaic system wiring harness insulation layer integrated plasticizing device, characterized in that, It includes the integrated extrusion module for the insulating layer of the photovoltaic system wire harness as described in any one of claims 1-8, an extruder, and a wire combining machine. The flow hole of the integrated extrusion module for the insulating layer of the photovoltaic system wire harness is communicated with the discharge port of the extruder. The wire harness passes through the wire combining machine for wire combining and then passes through the die core.

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