End socket forming method and end socket equipment for HDPE (high-density polyethylene) steel wire mesh framework composite pipe

Abstract

The invention discloses an HDPE steel wire mesh framework composite pipe end sealing head forming method and sealing head equipment, and belongs to the field of composite pipes. The HDPE steel wire mesh framework composite pipe end sealing head forming equipment comprises a shell, and an overturning structure used for helping a pipeline enter an inner cavity of the shell is fixedly installed on one side of the outer wall of the shell; by arranging the spinning structure, the shaft rod drives the wire winding disc to rotate rapidly, a steel wire wound around the outer wall of the wire winding disc can enter the inner cavity of the circular groove through the inclined groove, and the steel wire walks around the inner cavity of the circular groove after entering the circular groove through the internal shape of the circular groove, so that a steel wire ring is formed; the HDPE steel wire mesh framework composite pipe enters the deepest position of the inner cavity through pushing of the HDPE steel wire mesh framework composite pipe, and after the end of the HDPE steel wire mesh framework composite pipe is melted, the steel wires are wrapped while the end of the HDPE steel wire mesh framework composite pipe is wrapped, so that the firmness of the end of the HDPE steel wire mesh framework composite pipe is improved, and the service life of the HDPE steel wire mesh framework composite pipe is prolonged. The edge warping of the outer wall of the HDPE steel wire mesh framework composite pipe due to the fact that a pipeline needs to be repeatedly pulled and inserted in the subsequent use process is avoided.

Description

Technical Field

[0001] The invention relates to the field of composite pipes, and in particular to a method and equipment for forming end caps of a HDPE steel wire mesh skeleton composite pipe. Background Art

[0002] HDPE wire mesh skeleton composite pipe is a new type of composite pipe that combines high-strength steel wire skeleton and thermoplastic polyethylene (HDPE). Because it has a wire mesh skeleton as a reinforcement inside, it can withstand higher pressure and impact loads. Due to the HDPE matrix material, this composite pipe has excellent corrosion resistance and can resist erosion by corrosive media such as acids, alkalis, and salts.

[0003] After massive searches, it was found that the prior art publication number is CN116373282A, which discloses a HDPE wire mesh skeleton composite pipe and its end capping method and capping equipment, including a composite pipe body, the composite pipe body including an outer coating layer, a wire mesh skeleton and an inner supporting layer, the outer coating layer, the wire mesh skeleton and the inner supporting layer are in a three-layer composite structure, the outer coating layer, the wire mesh skeleton and the inner supporting layer are arranged in sequence from the outside to the inside, and a capping end is provided on the composite pipe body, and the capping end is covered and capped by heating and melting the outer coating layer and the inner supporting layer through the capping equipment. The present invention heats and melts the HDPE material of the outer coating layer and the inner supporting layer, and uses the molten HDPE material to form the capping end. The composite pipe end capping effect is good, and it is combined with the steel wire and is not easy to deform and fall off; and it can effectively reduce the production process of the composite pipe, improve production efficiency, and reduce production costs.

[0004] Therefore, based on the above search and in combination with the existing ones, HDPE wire mesh skeleton composite pipes are mostly pre-buried in the ground for municipal water supply, drainage or electricity, and communications. As a result, when in use, there is a need to plug and replace the pipe ends according to needs and purposes, but multiple plugging and unplugging may cause the pipe ends to be subjected to uneven forces during the plugging and unplugging process, causing the shape of the pipe ends to change, resulting in warping or deformation, causing the wire mesh inside the pipe to be exposed again, thereby reducing the pressure resistance of the pipe, and causing installation and connection difficulties. Summary of the invention

[0005] The object of the present invention is to provide a method and equipment for forming a capping end of a HDPE steel wire mesh skeleton composite pipe, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a shell, a flip structure for helping the pipe to enter the inner cavity of the shell is fixedly installed on one side of the outer wall of the shell, a circular groove for inserting the HDPE steel mesh skeleton composite pipe is provided in the inner cavity of the shell, an expansion structure for limiting the position of the HDPE steel mesh skeleton composite pipe is also installed inside the shell, a heating pipe for heating the outer wall of the HDPE steel mesh skeleton composite pipe to melt it is installed on the outer wall of the expansion structure, the outer wall of the heating pipe is fixedly installed in the inner cavity of the shell, and a spraying structure for spraying out steel wire is fixedly installed on the side end of the heating pipe;

[0007] The side end of the spraying structure is slidably connected with a cutting structure for cutting the steel wire, and the sprayed steel wire is cut by the cutting structure.

[0008] Furthermore, the flipping structure includes a support block, which is fixedly connected to the outer wall of the shell, and six groups of flipping rods are rotatably connected inside the support block, five groups of flipping rods are fixedly connected at both ends with a turntable for pushing the flipping rods to flip, and one group of flipping rods is fixedly connected at one end with a turntable for pushing the flipping rods to flip.

[0009] Furthermore, the expansion structure includes a support rod, and the support rod is slidably connected to the inner cavity of the shell. There are two groups of support rods in total, and the side ends of the support rods are meshingly connected with gears that push the support rods to move up and down.

[0010] Furthermore, a heat conducting plate for heat conduction is fixedly mounted on the outer wall of the heating pipe, and an expansion metal ring for driving the cutting structure is fixedly sleeved on the outer wall of the heat conducting plate.

[0011] Furthermore, the injection structure includes a wire winding drum, which is rotatably connected to the inner cavity of the shell, and a shaft rod is fixedly connected to the side end of the wire winding drum for driving the wire winding drum to rotate. The inner cavity of the shell is provided with an inclined groove for forming an annular wire ring.

[0012] Furthermore, the cutting structure includes a moving block, the bottom of which is fixedly connected to the top of the shaft rod, the side end of the moving block is slidably connected to a special-shaped push block, the end of the special-shaped push block close to the moving block is slidably connected to a push plate, and the bottom of the push plate away from the special-shaped push block is slidably connected to a guillotine for cutting the steel wire.

[0013] Furthermore, the inner cavity of the shell is slidably connected with two groups of push rods for pushing the HDPE steel wire mesh skeleton composite pipe to move, and the outer wall of the push rod is sleeved with a limiting convex ring.

[0014] Furthermore, a contact rod for pushing the limiting convex ring downward is fixedly connected to the top of the limiting convex ring, and the top of the contact rod abuts against the outer wall of the expanded metal ring.

[0015] Beneficial Effects

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a spinning structure, the shaft rod drives the winding drum to rotate rapidly, so that the steel wire wrapped on the outer wall of the winding drum can enter the inner cavity of the circular groove through the inclined groove, and through the internal shape of the circular groove, the steel wire enters the inner cavity of the circular groove and walks around the inner cavity of the circular groove, thereby forming a steel wire ring. When the pipeline enters the inner cavity, it is pushed into the deepest part of the inner cavity by the HDPE steel wire mesh skeleton composite pipe. After the end of the HDPE steel wire mesh skeleton composite pipe is melted, the end of the HDPE steel wire mesh skeleton composite pipe is wrapped and sealed, and the steel wire is wrapped at the same time, thereby increasing the firmness of the end of the HDPE steel wire mesh skeleton composite pipe, so as to avoid the warping of the outer wall of the HDPE steel wire mesh skeleton composite pipe due to the need to repeatedly pull out and plug in the pipeline during subsequent use.

[0018] 2. By setting up an expansion structure, after the HDPE steel wire mesh skeleton composite pipe is inserted into the device, the handle is turned to make the gears push the two sets of support rods to move upward and downward respectively to expand, so as to squeeze and limit the inside of the HDPE steel wire mesh skeleton composite pipe, thereby avoiding the HDPE steel wire mesh skeleton composite pipe from detaching from the inside during the processing due to its overall length and heavy weight.

[0019] 3. By setting up the cutting structure, the shaft rod drives the wire winding drum to rotate quickly for one circle to form a wire ring. When the shaft rod is reset, the shift block fixedly connected to the top of the shaft rod can push the special-shaped push block to move upward, so that the special-shaped push block pushes the push plate to move toward the end of the slider, and pushes the slider guillotine to move downward to cut the wire, thereby reducing the intervention of staff in cutting, which helps to improve the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural cross-sectional view of the housing of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the flip structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the heating pipeline of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the expansion structure of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the injection structure of the present invention;

[0026] Figure 7It is a schematic structural diagram of the push rod of the present invention.

[0027] In the figure: 1, housing; 2, flip structure; 3, circular groove; 4, expansion structure; 5, heating pipe; 6, spray structure; 7, cutting structure; 8, push rod; 201, support block; 202, flip rod; 203, support rod; 204, roller; 205, turntable; 206, turn rod; 207, first motor; 401, support rod; 402, gear; 403, column block; 404, turn handle; 501, heat conduction plate; 5 02, expansion metal ring; 503, ring groove; 601, winding drum; 602, shaft rod; 603, inclined groove; 701, shift block; 702, special-shaped push block; 703, push plate; 704, guillotine; 705, slider; 706, first spring; 801, limit convex ring; 802, contact rod; 803, box body; 804, second spring; 805, third spring; 806, slot; 807, rubber strip. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figure 1-Figure 7 A method and equipment for sealing the end of a HDPE steel mesh skeleton composite pipe, comprising a shell 1, a flip structure 2 for helping the pipe to enter the inner cavity of the shell 1 is fixedly installed on one side of the outer wall of the shell 1, a circular groove 3 for inserting the HDPE steel mesh skeleton composite pipe is provided in the inner cavity of the shell 1, an expansion structure 4 for limiting the position of the HDPE steel mesh skeleton composite pipe is also installed inside the shell 1, a heating pipe 5 for heating the outer wall of the HDPE steel mesh skeleton composite pipe to melt it is installed on the outer wall of the expansion structure 4, the outer wall of the heating pipe 5 is fixedly installed in the inner cavity of the shell 1, and a spraying structure 6 for spraying out steel wire is fixedly installed on the side end of the heating pipe 5;

[0030] The side end of the injection structure 6 is slidably connected with a cutting structure 7 for cutting the steel wire, and the ejected steel wire is cut by the cutting structure 7 to separate it from the steel wire wound inside the injection structure 6, so that the cut steel wire forms a steel wire ring surrounding the inside of the circular groove 3.

[0031] See also Figure 1 and Figure 3The flip structure 2 includes a support block 201, which is fixedly connected to the outer wall of the shell 1. Six groups of flip rods 202 are rotatably connected inside the support block 201. Both ends of five groups of flip rods 202 are fixedly connected to a turntable 205 for pushing the flip rods 202 to flip. One end of one group of flip rods 202 is fixedly connected to a turntable 205 for pushing the flip rods 202 to flip. Specifically, a rotating rod 206 for driving the flip rods 202 to rotate is rotatably connected inside the support block 201. There are six groups of rotating rods 206 in total. The six groups of flip rods 202 are fixedly connected to the outer wall of the rotating rods 206. Both ends of the outer walls of the five groups of rotating rods 206 are fixedly connected to the turntable 205, and the turntables 205 are meshed with each other. One end of the outer wall of one group of rotating rods 206 is fixedly connected to a group of turntables 205, and the turntables 205 of this group are meshed with each other. 5 is meshed with other turntables 205, one end of the outer wall of a group of rotating rods 206 away from the turntable 205 is fixedly connected to the first motor 207, and one end of the output shaft of the first motor 207 close to the turntable 205 is fixedly connected to the rotating rod 206, so that when a group of rotating rods 206 rotates, the meshing between the turntables 205 drives the other rotating rods 206 to rotate, and then the turning rod 206 drives the turning rod 202 fixedly connected to the outer wall to rotate; the turning rod 202 is fixedly connected with a supporting rod 203 inside, and the outer wall of the supporting rod 203 is sleeved with a roller 204 for helping the HDPE steel wire mesh skeleton composite pipe to enter the inside of the circular groove 3. When in use, the roller 204 is attached to the outer wall of the HDPE steel wire mesh skeleton composite pipe, so that the staff can push the HDPE steel wire mesh skeleton composite pipe into the inside of the circular groove 3.

[0032] Example 2: Please refer to Figure 2 and Figure 5 , a method and equipment for forming a capping end of a HDPE steel wire mesh skeleton composite pipe, which is different from Example 1 in that an expansion structure 4 includes a strut 401, which is slidably connected to the inner cavity of a shell 1, and two groups of struts 401 are provided. The side ends of the struts 401 are meshedly connected with gears 402 for pushing the struts 401 to move up and down, and the two groups of struts 401 are respectively meshed at both ends of the gear 402. Specifically, a column block 403 for limiting the position of the strut 401 is fixedly connected to the inner cavity of the shell 1, and a special-shaped groove begins to be formed inside the column block 403. The strut 401 is slidably connected to the inner cavity of the special-shaped groove, and both ends of the gear 402 are rotatably connected to the inner cavity of the special-shaped groove through bearings. A turning handle 404 for driving the gear 402 to rotate is fixedly connected at the axis of the gear 402. The turning handle 404 can be rotated to drive the gear 402 to rotate. When the gear 402 rotates, the two groups of gears 402 are respectively driven to move up and down, thereby limiting or relaxing the pipeline.

[0033] See also Figure 2 and Figure 4A heat conducting plate 501 for heat conduction is fixedly installed on the outer wall of the heating pipe 5, and an expansion metal ring 502 for driving the cutting structure 7 is fixedly sleeved on the outer wall of the heat conducting plate 501. Specifically, an annular groove 503 is opened in the inner cavity of the shell 1, and the heat conducting plate 501 and the expansion metal ring 502 are fixedly connected to the inner cavity of the annular groove 503. The heat conducting plate 501 is a ceramic material with slow thermal conductivity.

[0034] See also Figure 2 and Figure 6 The injection structure 6 includes a wire winding drum 601, which is rotatably connected to the inner cavity of the shell 1. The side end of the wire winding drum 601 is fixedly connected to an axle 602 for driving the wire winding drum 601 to rotate. The inner cavity of the shell 1 is provided with an inclined groove 603 for forming an annular iron wire ring. Specifically, when the axle 602 drives the wire winding drum 601 to rotate rapidly, the steel wire wound on the outer wall of the wire winding drum 601 can enter the inner cavity of the circular groove 3 through the inclined groove 603, and through the internal shape of the circular groove 3, the steel wire enters the circular groove 3 and walks around the inner cavity of the circular groove 3, thereby forming a steel wire ring. The outer wall of the shell 1 is also fixedly connected to a second motor for driving the axle 602 to rotate. By driving the second motor to make its output shaft rotate, the wire winding drum 601 is driven to rotate quickly through the axle 602, so that the ejected steel wire ring just forms a ring.

[0035] See also Figure 2 and Figure 6 The cutting structure 7 includes a moving block 701, the bottom of the moving block 701 is fixedly connected to the top of the shaft 602, the side end of the moving block 701 is slidably connected to a special-shaped push block 702, the end of the special-shaped push block 702 close to the moving block 701 is slidably connected to a push plate 703, and the bottom of the push plate 703 away from the special-shaped push block 702 is slidably connected to a guillotine 704 for cutting the steel wire. Specifically, a slider 705 for pushing the guillotine 704 to move up and reset is fixedly connected to the top of the guillotine 704, and the top of the slider 705 is in contact with the bottom of the push plate 703, so that the push plate 703 moves toward the end of the slider 705. When the slider 705 is moved, the guillotine 704 is driven downward to cut the wire. The inner cavity of the shell 1 is provided with a slide groove for the slide of the guillotine 704 and the slider 705. The first spring 706 for pulling the slider 705 back to its original position is fixedly connected inside the slide groove. The top of the special-shaped push block 702 is fitted on the bottom of the push plate 703, so that the special-shaped push block 702 moves upward, pushing the push plate 703 to move toward the end of the slider 705. The end of the moving block 701 away from the push plate 703 and the end of the special-shaped push block 702 close to the push plate 703 fit each other, so that the shaft rod 602 drives the moving block 701 to rotate left one circle (see details). Figure 6 ) to the right side of the special-shaped push block 702, push the special-shaped push block 702 to move upward.

[0036] Example 3: Please refer to Figure 2 and Figure 7, a method and equipment for sealing the end of a HDPE steel mesh skeleton composite pipe, which is different from Example 1 in that two sets of push rods 8 for pushing the HDPE steel mesh skeleton composite pipe are slidably connected to the inner cavity of the shell 1, and the outer wall of the push rod 8 is sleeved with a limiting convex ring 801. Specifically, the outer wall of the push rod 8 is slidably connected to a box body 803 for limiting the push rod 8, and the box body 803 is fixedly connected with a second spring 804 for pushing the push rod 8 to move back to the inside of the shell 1, and the end of the box body 803 away from the second spring 804 is fixedly connected with a useful A third spring 805 is used to push the push rod 8 to drive the HDPE wire mesh skeleton composite pipe to move outside the shell 1; a slot 806 is provided at the bottom of the push rod 8, and a limiting convex ring 801 limits the push rod 8 through the slot 806. When the limiting convex ring 801 is separated from the inside of the slot 806, the third spring 805 can push the push rod 8 to drive the HDPE wire mesh skeleton composite pipe to move outside the shell 1; a rubber strip 807 for increasing friction is fixedly connected to the top of the push rod 8; a spring four is fixedly connected inside the box body 803 to push the limiting convex ring 801 to move up and reset.

[0037] See also Figure 2 and Figure 7 A contact rod 802 is fixedly connected to the top of the limiting protrusion ring 801 for pushing the limiting protrusion ring 801 downward. The top of the contact rod 802 abuts against the outer wall of the expansion metal ring 502. When the expansion metal ring 502 expands, the contact rod 802 is pushed to drive the limiting protrusion ring 801 downward, so that the limiting protrusion ring 801 disengages from the slot 806 to cancel the limit on the push rod 8.

[0038] The working principle of the present invention is: first, the second motor is driven to rotate its output shaft one circle, and the shaft 602 drives the wire winding drum 601 to rotate quickly one circle, so that the steel wire wound on the outer wall of the wire winding drum 601 can enter the inner cavity of the circular groove 3 through the inclined groove 603, and through the internal shape of the circular groove 3, the steel wire enters the circular groove 3 and walks around the inner cavity of the circular groove 3, thereby forming a steel wire loop. At the same time, after the shaft 602 rotates one circle, the moving block 701 fixedly connected to the top thereof can push the special-shaped push block 702 to move upward, so that the special-shaped push block 702 pushes the push plate 703 to move toward the end of the slider 705, and pushes the slider 705 to drive the guillotine 704 to move downward to cut the steel wire, and then the HDPE steel wire mesh skeleton composite pipe is formed. It is placed between the six groups of turning rods 202, and the first motor 207 is driven to turn the turning rods 202 inward at the same time, pushing the HDPE steel wire mesh skeleton composite pipe to find the position of the circular groove 3. When the turning rods 202 are all adjusted to a horizontal state, the position of the HDPE steel wire mesh skeleton composite pipe inside it will also correspond to the position of the circular groove 3, and the HDPE steel wire mesh skeleton composite pipe can be pushed to enter the inner cavity of the circular groove 3 through the roller 204. At the same time, the HDPE steel wire mesh skeleton composite pipe can push the wire ring into the inner cavity of the circular groove 3, and then the turning handle 404 is turned to make the gear 402 simultaneously push the two groups of support rods 401 to move upward and downward respectively to expand, and the inside of the HDPE steel wire mesh skeleton composite pipe is squeezed and limited;

[0039] Then, the heating pipe 5 is driven to generate heat to heat and melt the outer wall of the end of the HDPE steel wire mesh skeleton composite pipe. At the same time, the heat conducting plate 501 can conduct the heat energy emitted by the heating pipe 5 to heat the expansion metal ring 502. Because the heat conducting plate 501 is made of ceramic material, the conduction is slow. When the expansion metal ring 502 is heated and expanded, the outer wall of the end of the HDPE steel wire mesh skeleton composite pipe is also melted. When the expansion metal ring 502 bulges, the contact rod 802 is pushed downward to drive the limit convex ring 801 downward, so that the push rod 8 loses the limit convex ring. After the ring 801 is limited, the third spring 805 pushes the push rod 8 to drive the HDPE wire mesh skeleton composite pipe to move a distance outside the shell 1, so as to utilize a certain position for the pre-embedded steel wire. When the HDPE wire mesh skeleton composite pipe is moved, the melted composite material on its outer wall will stay inside the circular groove 3, and after the HDPE wire mesh skeleton composite pipe is moved, the outer wall of the steel wire and the end of the HDPE wire mesh skeleton composite pipe will be wrapped through the reserved gap, so as to form a head after the HDPE wire mesh skeleton composite pipe is completely cooled.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A HDPE steel wire mesh skeleton composite pipe end capping device, comprising a housing (1), characterized in that: A flip structure (2) for helping the pipe to enter the inner cavity of the shell (1) is fixedly installed on one side of the outer wall of the shell (1); a circular groove (3) for inserting the HDPE steel mesh skeleton composite pipe is provided in the inner cavity of the shell (1); an expansion structure (4) for limiting the position of the HDPE steel mesh skeleton composite pipe is also installed inside the shell (1); a heating pipe (5) for heating the outer wall of the HDPE steel mesh skeleton composite pipe to melt it is installed on the outer wall of the expansion structure (4); the outer wall of the heating pipe (5) is fixedly installed in the inner cavity of the shell (1); and a spraying structure (6) for spraying out steel wire is fixedly installed on the side end of the heating pipe (5); The side end of the spraying structure (6) is slidably connected to a cutting structure (7) for cutting the steel wire, and the sprayed steel wire is cut by the cutting structure (7).

2. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1 is characterized in that: The flip structure (2) comprises a support block (201), wherein the support block (201) is fixedly connected to the outer wall of the housing (1), and six groups of flip rods (202) are rotatably connected inside the support block (201), and both ends of five groups of flip rods (202) are fixedly connected to a rotating disk (205) for pushing the flip rods (202) to flip, and one end of one group of flip rods (202) is fixedly connected to a rotating disk (205) for pushing the flip rods (202) to flip.

3. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1 is characterized in that: The expansion structure (4) comprises a support rod (401) which is slidably connected to the inner cavity of the shell (1). Two groups of the support rods (401) are provided. The side ends of the support rods (401) are meshingly connected with gears (402) for pushing the support rods (401) to move up and down.

4. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1 is characterized in that: A heat conducting plate (501) for heat conduction is fixedly mounted on the outer wall of the heating pipe (5), and an expansion metal ring (502) for driving the cutting structure (7) is fixedly sleeved on the outer wall of the heat conducting plate (501).

5. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1 is characterized in that: The injection structure (6) comprises a wire winding drum (601), the wire winding drum (601) is rotatably connected to the inner cavity of the shell (1), the side end of the wire winding drum (601) is fixedly connected to a shaft (602) for driving the wire winding drum (601) to rotate, and the inner cavity of the shell (1) is provided with an inclined groove (603) for forming an annular wire ring.

6. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1, characterized in that: The cutting structure (7) comprises a moving block (701), the bottom of the moving block (701) is fixedly connected to the top of the shaft (602), the side end of the moving block (701) is slidably connected to a special-shaped push block (702), one end of the special-shaped push block (702) close to the moving block (701) is slidably connected to a push plate (703), and the bottom of the end of the push plate (703) away from the special-shaped push block (702) is slidably connected to a guillotine (704) for cutting the steel wire.

7. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 1 is characterized in that: The inner cavity of the shell (1) is slidably connected with two groups of push rods (8) for pushing the HDPE steel wire mesh skeleton composite pipe to move, and the outer wall of the push rod (8) is sleeved with a limiting convex ring (801).

8. The end capping device of a HDPE steel wire mesh skeleton composite pipe according to claim 7, characterized in that: A contact rod (802) for pushing the limiting convex ring (801) downward is fixedly connected to the top of the limiting convex ring (801), and the top of the contact rod (802) abuts against the outer wall of the expansion metal ring (502).

9. A method for forming an end cap of a HDPE steel wire mesh skeleton composite pipe, characterized in that: The molding method comprises the following steps: First, when the shaft (602) drives the winding drum (601) to rotate, the steel wire passes through the inclined groove (603) and enters the circular groove (3) to form a steel wire ring, and then the steel wire ring is cut by the guillotine (704), and the pipe is placed between the six groups of turning rods (202). When one group of rotating discs (205) rotates, the turning rods (202) are turned by the other rotating discs (205), and the outer wall of the HDPE steel wire mesh skeleton composite pipe is clamped, and the pipe is pushed to move into the shell (1); The two groups of support rods (401) move upward and downward respectively to support the inside of the pipe, thereby limiting the position of the HDPE steel wire mesh skeleton composite pipe, so that the heating pipe (5) is opened to heat and melt the outer wall of the pipe. At the same time, the heat conducting plate (501) can transfer heat energy, so that the expansion metal ring (502) expands due to heat, and pushes the contact rod (802) to drive the limiting convex ring (801) to move downward, so that the push rod (8) loses the limit of the limiting convex ring (801), and pushes the pipe to move a distance outside the shell (1), so that when the HDPE steel wire mesh skeleton composite pipe moves, the composite material melted at the end of its outer wall stays inside the shell (1) to wrap the end of the pipe and the outer wall of the steel wire ring, and the head is completed after cooling and forming.

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