Automatic extrusion equipment for PVC (polyvinyl chloride) sheath material

Abstract

The invention discloses a PVC sheath material automatic extrusion device, and relates to the technical field of PVC sheath material processing, the PVC sheath material automatic extrusion device comprises a lifting body and further comprises a gear box clamped at the end of the lifting body, the gear box is provided with a driving shaft rod and an extrusion screw rod in a penetrating mode from top to bottom in sequence, and the inner side of the lifting body is fixedly connected with a sleeve in a clamped mode; the end of the driving shaft rod and the end of the extrusion screw are fixedly connected with a driving gear and a driven gear in a clamped and sleeved mode respectively, the other end of the driving shaft rod is fixedly connected with a driving bevel gear in a clamped mode, a feeding pipe is arranged on the upper side of the lifting body, the top end of the feeding pipe is fixedly connected with a feeding hopper, and the bottom of the feeding pipe is fixedly connected with a driven bevel gear in a clamped and sleeved mode. According to the invention, a feeding structure can be prevented from being blocked while an extrusion function is realized through a single motor, the working efficiency is obviously improved, the energy consumption is relatively reduced, the extrusion equipment can be correspondingly adjusted according to the actual position condition of the processing equipment, the adjustment function is convenient and fast, and the use flexibility is relatively high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PVC sheath material processing, in particular to automatic extrusion equipment for PVC sheath material. BACKGROUND

[0002] PVC sheath is an outer protective material made of polyvinyl chloride and is widely used as a cladding layer for wires and cables, pipes, hoses and other industrial products. Its core function is to provide mechanical protection, electrical insulation, weather resistance and chemical stability for the internal structure, while also having the advantages of low cost, flexible processing and the like, and is a key protective component in the fields of power, communication, building and automobile. The automatic extrusion equipment for PVC sheath material is an intelligent industrial equipment for continuously producing polyvinyl chloride sheath material, which mainly processes PVC mixed material into an outer protective sleeve of a cable, a pipe or other profiles through high-temperature melting, pressure extrusion and shaping cooling processes.

[0003] The patent with the publication number CN218256637U discloses automatic extrusion equipment for PVC sheath material, which comprises an upper cover shell, the bottom of the upper cover shell is an upper arc surface groove with an inner concave semicircle, a lower cover shell is arranged below the upper cover shell, and a lower arc surface groove is formed in the top of the lower cover shell to form a complete circular port with the upper arc surface groove, a matching screw rod is arranged on the inner periphery of the circular port, a gear box is arranged between one side of the upper cover shell and the lower cover shell, threaded nut seats are connected to both ends of the upper cover shell and the lower cover shell on both sides, a bidirectional screw rod is threadedly connected between the inner peripheries of the corresponding two nut seats, a driving motor is connected to the bottom end of the bidirectional screw rod through a shaft coupling, and a cooling jacket for cooling is arranged on the side of the upper cover shell and the lower cover shell away from the screw rod. Not only is it more convenient to inspect and clean the interior, but it also can achieve efficient pre-circulation cooling. However, the motor on the existing automatic extrusion equipment for PVC sheath material can only be used to drive the extrusion screw during use, has poor functionality, and the anti-blocking feeding structure usually needs to use an additional motor, which consumes more electric energy. Therefore, we propose a kind of automatic extrusion equipment for PVC sheath material. SUMMARY

[0004] The purpose of the present application is to provide a kind of automatic extrusion equipment for PVC sheath material, to solve the problems of the existing automatic extrusion equipment for PVC sheath material in the prior art, which can only be used to drive the extrusion screw during use, has poor functionality, and the anti-blocking feeding structure usually needs to use an additional motor, which consumes more electric energy.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] The utility model provides a kind of PVC sheath material automatic extrusion equipment, including lifting body, further including gear box being clamped in the end of lifting body, the gear box is sequentially penetrated with driving shaft and extrusion screw from top to bottom, the inside of lifting body is clamped and fixedly connected with sleeve, the end of driving shaft and extrusion screw is clamped and fixedly connected with driving gear and driven gear respectively, the other end of driving shaft is clamped and fixedly connected with main bevel gear, the upper side of lifting body is provided with feed pipe, the top of feed pipe is fixedly connected with feed hopper, the bottom of feed pipe is clamped and fixedly connected with from bevel gear;

[0007] The upper surface of the lifting body is fixedly connected with a support vertical rod, one side of the support vertical rod is fixedly connected with a support horizontal rod, the other end of the support horizontal rod is fixedly connected with a limiting ring, the top end of the support vertical rod is fixedly connected with a top connecting plate, the other end of the top connecting plate is fixedly connected with a fixed vertical rod, the bottom of the fixed vertical rod is fixedly connected with four groups of first stirring rods, the top end of the first stirring rod is fixedly connected with a second stirring rod, the top end of the second stirring rod is fixedly connected with a third stirring rod.

[0008] Through the above technical scheme, the following technical effects can be achieved: by starting the drive motor outside the gear box, the driving shaft and the driving gear are rotated together, thereby driving the extrusion screw to rotate through the meshing driving gear and driven gear, to convey the PVC sheath raw material, at the same time, the rotation of the driving shaft drives the main bevel gear to rotate, thereby driving the feed pipe to rotate inside the limiting ring through the meshing main bevel gear and from bevel gear, and further driving the feed hopper to rotate, at this time, the four groups of first stirring rods, the four groups of second stirring rods and the four groups of third stirring rods stir the PVC sheath raw material relative to the feed hopper, which can realize the extrusion function through a single motor while preventing the feeding structure from being blocked, significantly improving the work efficiency and saving energy consumption.

[0009] As a further scheme of the present application: a drive motor is clamped and fixedly installed on the outside top of the gear box, and the driving shaft is clamped and fixedly installed on the output end of the drive motor, the driving gear and the driven gear are located inside the gear box, and the driving gear is meshed with the driven gear, the extrusion screw is located inside the sleeve, and the feed pipe is connected in communication with the sleeve through the lifting body.

[0010] As a further scheme of the present application: the feed pipe is located inside the limiting ring, the main bevel gear is located outside the gear box, the main bevel gear and the from bevel gear are arranged vertically, and the main bevel gear is meshed with the from bevel gear.

[0011] As a further scheme of the present application: the top connecting plate is located on the upper side of the feed hopper, the fixed vertical rod is located inside the feed hopper, the second stirring rod is arranged obliquely, and the four groups of second stirring rods and the four groups of third stirring rods are symmetrically arranged about the fixed vertical rod.

[0012] As a further scheme of the present application: the first stirring rod is attached to the inner wall of the feeding pipe, and the second and third stirring rods are both attached to the inner wall of the feeding hopper.

[0013] As a further scheme of the present application: a rotating carrier plate is arranged below the lifting body, the lower side corners of the rotating carrier plate are rotatably connected with rolling wheels, the lower side of the rotating carrier plate is provided with a supporting bottom plate, the lower side of the rotating carrier plate is fixedly connected with a rotating rod in the middle, the upper surface of the supporting bottom plate is fixedly connected with a fixing ring, and the rotating carrier plate is threadedly connected with a first fastening bolt in the middle on one side.

[0014] A vertical threaded rod is rotatably connected to the upper middle of the rotating carrier plate, a rotating handle is fixedly sleeved to the bottom of the vertical threaded rod, an internally threaded pipe is sleeved to the vertical threaded rod, a short screw pipe is fixedly connected to the bottom of the internally threaded pipe, a second fastening bolt is threadedly connected to the short screw pipe, and limiting vertical rods are fixedly connected to both ends of the rotating carrier plate, and limiting sleeve pipes are fixedly connected to both ends of the lifting body.

[0015] Through the above technical scheme, the following technical effects can be achieved: the rotating carrier plate is rotated on the upper side of the supporting bottom plate through the cooperation of the rotating rod and the rotating hole, the cooperation of the fixing ring and the annular groove, and the cooperation of the first fastening bolt and the fixing ring, so as to fix the position of the rotating carrier plate, thereby changing the position of the feeding and discharging, rotating the rotating handle on the upper side of the rotating carrier plate to drive the vertical threaded rod to rotate, thereby driving the lifting body to move up and down through the limiting action of the vertical threaded rod and the internally threaded pipe in cooperation with the limiting vertical rods and the limiting sleeve pipes, and fixing the height of the lifting body through the second fastening bolt on the short screw pipe, thereby changing the height of the extrusion equipment, and making corresponding adjustment of the extrusion equipment according to the actual position of the processing equipment, so as to have the convenient adjustment function.

[0016] As a further scheme of the present application: a rotating hole is formed in the middle of the supporting bottom plate, and the rotating rod is located inside the rotating hole, an annular groove is formed in the lower surface of the rotating carrier plate, and the fixing ring is fitted with the annular groove, and the end of the first fastening bolt is attached to the fixing ring.

[0017] As a further scheme of the present application: the rotating handle is located on the upper surface of the rotating carrier plate, the vertical threaded rod is threadedly connected with the internally threaded pipe, the end of the second fastening bolt is attached to the vertical threaded rod, and the two groups of limiting vertical rods and the two groups of limiting sleeve pipes are symmetrically arranged about the internally threaded pipe, and the limiting vertical rods are movably connected with the limiting sleeve pipes.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. By starting the drive motor on the outside of the gearbox, the drive shaft and drive gear rotate together. This, in turn, drives the extrusion screw to rotate through the meshing drive and driven gears, thus conveying the PVC sheathing material. Simultaneously, the rotation of the drive shaft drives the main bevel gear to rotate. This, in turn, drives the feed pipe to rotate inside the limit ring through the meshing main and driven bevel gears, which in turn drives the feed hopper to rotate. At this time, the four sets of first agitator rods, four sets of second agitator rods, and four sets of third agitator rods tumble the PVC sheathing material relative to the feed hopper. This allows for extrusion with a single motor while preventing blockage of the feed structure, significantly improving work efficiency and saving energy.

[0020] 2. The rotating carrier plate rotates on the upper side of the support base plate by means of the rotating rod and rotating hole, and the fixed ring and annular groove. The position of the rotating carrier plate is fixed by the cooperation of the first fastening bolt and the fixed ring, so that the position of the feed and discharge can be changed. Then, the rotating handle on the upper side of the rotating carrier plate is rotated to drive the vertical threaded rod to rotate. The vertical threaded rod and the internal threaded tube are connected by threads, and the limiting vertical rod and the limiting sleeve limit the lifting body to move up and down. The height of the lifting body is fixed by the second fastening bolt on the short threaded tube, so that the height of the extrusion equipment can be changed. The extrusion equipment can be adjusted according to the actual position of the processing equipment, which has convenient adjustment function and high flexibility of use. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the connection structure of the lifting body in this invention.

[0024] Figure 3 This is a schematic diagram of the connection structure of the feed hopper in this invention.

[0025] Figure 4 This is a cross-sectional view of the feed hopper in this invention.

[0026] Figure 5 This is a schematic diagram of the connection structure between the rotating carrier plate and the supporting base plate in this invention.

[0027] Figure 6 This is a schematic diagram of the connection structure between the lifting body and the rotating carrier plate in this invention.

[0028] In the figure: 1, lifting body; 2, gear box; 3, drive motor; 4, driving shaft; 5, driving gear; 6, driven gear; 7, extrusion screw; 8, sleeve; 9, main bevel gear; 10, driven bevel gear; 11, feed pipe; 12, feed hopper; 13, support vertical rod; 14, support cross rod; 15, limit ring; 16, top connecting plate; 17, fixed vertical rod; 18, first stirring rod; 19, second stirring rod; 20, third stirring rod; 21, support bottom plate; 22, rotating carrier plate; 23, rotating rod; 24, rotating hole; 25, fixed ring; 26, annular groove; 27, first fastening bolt; 28, rolling wheel; 29, vertical threaded rod; 30, rotating handle; 31, internally threaded tube; 32, short screw tube; 33, second fastening bolt; 34, limit vertical rod; 35, limit sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] Example 1:

[0032] This embodiment refers to Figures 1-6As shown, the present application provides a technical scheme: a PVC sheath material automatic extrusion equipment, including lifting body 1, further including gear box 2 connected at the end of lifting body 1, gear box 2 is sequentially penetrated from top to bottom with driving shaft 4 and extrusion screw 7, the inner side of lifting body 1 is fixedly connected with sleeve 8, the end of driving shaft 4 and extrusion screw 7 is fixedly connected with driving gear 5 and driven gear 6 respectively, the other end of driving shaft 4 is fixedly connected with main bevel gear 9, the upper side of lifting body 1 is provided with feed pipe 11, the top end of feed pipe 11 is fixedly connected with feed hopper 12, the bottom of feed pipe 11 is fixedly connected with driven bevel gear 10, the upper surface of lifting body 1 is fixedly connected with support vertical rod 13, one side of support vertical rod 13 is fixedly connected with support horizontal rod 14, the other end of support horizontal rod 14 is fixedly connected with limiting ring 15, the top end of support vertical rod 13 is fixedly connected with top connecting plate 16, the other end of top connecting plate 16 is fixedly connected with fixed vertical rod 17, the bottom of fixed vertical rod 17 is fixedly connected with four groups of first stirring rod 18, the top end of first stirring rod 18 is fixedly connected with second stirring rod 19, the top end of second stirring rod 19 is fixedly connected with third stirring rod 20.

[0033] The outer side of gear box 2 is fixedly installed with driving motor 3, and driving shaft 4 is fixedly installed on the output end of driving motor 3, driving gear 5 and driven gear 6 are located in the interior of gear box 2, and driving gear 5 is engaged with driven gear 6, extrusion screw 7 is located in the interior of sleeve 8, and feed pipe 11 communicates with sleeve 8 through lifting body 1.

[0034] Feed pipe 11 is located in the inner side of limiting ring 15, main bevel gear 9 is located on the outer side of gear box 2, main bevel gear 9 is vertically arranged with driven bevel gear 10, and main bevel gear 9 is engaged with driven bevel gear 10.

[0035] Top connecting plate 16 is located on the upper side of feed hopper 12, fixed vertical rod 17 is located in the inner side of feed hopper 12, second stirring rod 19 is arranged obliquely, and four groups of second stirring rod 19 and four groups of third stirring rod 20 are symmetrically arranged about fixed vertical rod 17.

[0036] First stirring rod 18 is attached to the inner wall of feed pipe 11, second stirring rod 19 and third stirring rod 20 are attached to the inner wall of feed hopper 12.

[0037] Specifically, by starting the drive motor 3 outside the gear box 2, the driving shaft rod 4 and the driving gear 5 are rotated together, so that the extrusion screw 7 is rotated through the meshing driving gear 5 and the driven gear 6, so as to convey the PVC sheath raw material, at the same time, the rotation of the driving shaft rod 4 drives the main bevel gear 9 to rotate, so that the feeding pipe 11 rotates inside the limiting ring 15 through the meshing main bevel gear 9 and the driven bevel gear 10, and then drives the feeding hopper 12 to rotate, at this time, the four groups of first stirring rods 18, the four groups of second stirring rods 19 and the four groups of third stirring rods 20 are relative to the feeding hopper 12 to overturn the PVC sheath raw material, which can prevent the feeding structure from being blocked while realizing the extrusion function through a single motor, significantly improving the work efficiency and saving energy.

[0038] Embodiment 2:

[0039] This embodiment refers to Figures 1-6 The present application provides a technical scheme: a PVC sheath material automatic extrusion equipment, the lower side of the rotating carrier plate 22 is rotatably connected with the rolling wheel 28, the lower side of the rotating carrier plate 22 is provided with the supporting bottom plate 21, the lower side of the rotating carrier plate 22 is fixedly connected with the rotating rod 23, the upper surface of the supporting bottom plate 21 is fixedly connected with the fixed ring 25, one side of the rotating carrier plate 22 is threadedly connected with the first fastening bolt 27, the upper side of the rotating carrier plate 22 is rotatably connected with the vertical screw rod 29, the bottom of the vertical screw rod 29 is fixedly sleeved with the rotating handle 30, the vertical screw rod 29 is sleeved with the internal threaded pipe 31, the bottom of the internal threaded pipe 31 is fixedly connected with the short screw pipe 32, the short screw pipe 32 is threadedly connected with the second fastening bolt 33, both ends of the rotating carrier plate 22 are fixedly connected with the limiting vertical rod 34, both ends of the lifting body 1 are fixedly connected with the limiting sleeve 35.

[0040] The rotating hole 24 is formed in the middle of the supporting bottom plate 21, and the rotating rod 23 is located inside the rotating hole 24, the lower surface of the rotating carrier plate 22 is provided with the annular groove 26, and the fixed ring 25 is matched with the annular groove 26, the end of the first fastening bolt 27 is matched with the fixed ring 25.

[0041] The rotating handle 30 is located on the upper surface of the rotating carrier plate 22, the vertical screw rod 29 is threadedly connected with the internal threaded pipe 31, the end of the second fastening bolt 33 is matched with the vertical screw rod 29, the two groups of limiting vertical rods 34 and the two groups of limiting sleeves 35 are symmetrically arranged about the internal threaded pipe 31, and the limiting vertical rod 34 is movably connected with the limiting sleeve 35.

[0042] Specific, by rotating the rod 23 and rotating hole 24 cooperation fixed ring 25 and annular groove 26 make rotating the load plate 22 in the upper side of the support base plate 21 rotation, and through the cooperation of the first fastening bolt 27 and fixed ring 25 to fix the position of rotating the load plate 22, so as to change the position of the material in and out, then rotate rotating handle 30 on the upper side of rotating the load plate 22, to drive vertical screw rod 29 rotation, so as to through the vertical screw rod 29 and the threaded connection cooperation of the inner threaded tube 31 limit the limiting action of the vertical rod 34 and the limit sleeve 35 drive the lifting body 1 up and down, and through the second fastening bolt 33 on the short screw pipe 32 to fix the height of the lifting body 1, thereby changing the height of the extrusion equipment, can be adjusted according to the actual position of the processing equipment, with convenient adjustment function, strong flexibility of use.

[0043] The working principle and use process of the present application are as follows: first, the staff rotates the rod 23 and the rotating hole 24 to cooperate with the fixed ring 25 and the annular groove 26 to make the rotating load plate 22 rotate on the upper side of the support base plate 21, and fixes the position of the rotating load plate 22 through the cooperation of the first fastening bolt 27 and the fixed ring 25, so as to change the position of the material in and out, then rotate rotating handle 30 on the upper side of rotating the load plate 22, to drive vertical screw rod 29 rotation, so as to through the vertical screw rod 29 and the threaded connection cooperation of the inner threaded tube 31 limit the limiting action of the vertical rod 34 and the limit sleeve 35 drive the lifting body 1 up and down, and through the second fastening bolt 33 on the short screw pipe 32 to fix the height of the lifting body 1, thereby changing the height of the extrusion equipment, can be adjusted according to the actual position of the processing equipment, with convenient adjustment function, strong flexibility of use, when the equipment works, the driving motor 3 outside the gear box 2 is started, to drive the driving shaft 4 and the driving gear 5 to rotate together, so as to drive the extrusion screw 7 to rotate in the inside of the sleeve 8 through the meshing of the driving gear 5 and the driven gear 6, to convey the PVC sheath raw material, at the same time, the rotation of the driving shaft 4 drives the main bevel gear 9 to rotate, so as to drive the feeding pipe 11 to rotate in the inside of the limiting ring 15 through the meshing of the main bevel gear 9 and the driven bevel gear 10, thereby driving the feeding hopper 12 to rotate, at this time, the four groups of first stirring rods 18, the four groups of second stirring rods 19 and the four groups of third stirring rods 20 stir the PVC sheath raw material relative to the feeding hopper 12, which can realize the extrusion function through a single motor, prevent the feeding structure from being blocked, significantly improve the work efficiency, and save energy consumption.

[0044] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An automatic extrusion plant for PVC sheathing masses, comprising a lifting body (1), characterized in that: Also include the gear box (2) is clamped in the end of the lifting body (1), the gear box (2) is sequentially provided with driving shaft rod (4) and extrusion screw (7) from top to bottom, the inner side of the lifting body (1) is clamped and fixedly connected with sleeve (8), the end of the driving shaft rod (4) and extrusion screw (7) is clamped and fixedly connected with driving gear (5) and driven gear (6) respectively, the other end of the driving shaft rod (4) is clamped and fixedly connected with main bevel gear (9), the upper side of the lifting body (1) is provided with feed pipe (11), the top end of the feed pipe (11) is fixedly connected with feed hopper (12), the bottom of the feed pipe (11) is clamped and fixedly connected with driven bevel gear (10); The upper surface of the lifting body (1) is fixedly connected with support vertical rod (13), one side of the support vertical rod (13) is fixedly connected with support horizontal rod (14), the other end of the support horizontal rod (14) is fixedly connected with limiting ring (15), the top end of the support vertical rod (13) is fixedly connected with top connecting plate (16), the other end of the top connecting plate (16) is fixedly connected with fixed vertical rod (17), the bottom of the fixed vertical rod (17) is fixedly connected with four groups of first stirring rod (18), the top end of the first stirring rod (18) is fixedly connected with second stirring rod (19), the top end of the second stirring rod (19) is fixedly connected with third stirring rod (20).

2. The automatic extrusion equipment for PVC sheath material according to claim 1, characterized in that: The outer side top of the gear box (2) is clamped and fixedly installed with driving motor (3), and the driving shaft rod (4) is clamped and fixedly installed at the output end of the driving motor (3), the driving gear (5) and the driven gear (6) are located in the interior of the gear box (2), and the driving gear (5) is engaged with the driven gear (6), the extrusion screw (7) is located in the interior of the sleeve (8), and the feed pipe (11) communicates with the sleeve (8) through the lifting body (1).

3. The automatic extrusion equipment for PVC sheath material according to claim 1, characterized in that: The feed pipe (11) is located in the inner side of the limiting ring (15), the main bevel gear (9) is located in the outer side of the gear box (2), the main bevel gear (9) and the driven bevel gear (10) are vertically arranged, and the main bevel gear (9) is engaged with the driven bevel gear (10).

4. The automatic extrusion equipment for PVC sheath material according to claim 3, characterized in that: The top connecting plate (16) is located in the upper side of the feed hopper (12), the fixed vertical rod (17) is located in the inner side of the feed hopper (12), the second stirring rod (19) is arranged obliquely, and the four groups of second stirring rod (19) and the four groups of third stirring rod (20) are symmetrically arranged about the fixed vertical rod (17).

5. The automatic extrusion equipment for PVC sheath material according to claim 4, characterized in that: The first stirring rod (18) is attached to the inner wall of the feed pipe (11), the second stirring rod (19) and the third stirring rod (20) are attached to the inner wall of the feed hopper (12).

6. The automatic PVC sheathing material extrusion device according to claim 1, characterized in that: The lower part of the lifting body (1) is provided with a rotating carrier plate (22), the lower side of the rotating carrier plate (22) is rotatably connected with a rolling wheel (28), the lower side of the rotating carrier plate (22) is provided with a supporting bottom plate (21), the lower side of the rotating carrier plate (22) is fixedly connected with a rotating rod (23), the upper surface of the supporting bottom plate (21) is fixedly connected with a fixed ring (25), and the side of the rotating carrier plate (22) is threadedly connected with a first fastening bolt (27). The upper side of the rotating carrier plate (22) is rotatably connected with a vertical threaded rod (29), the bottom of the vertical threaded rod (29) is fixedly sleeved with a rotating handle (30), the vertical threaded rod (29) is sleeved with an internally threaded pipe (31), the bottom of the internally threaded pipe (31) is fixedly connected with a short screw pipe (32), the short screw pipe (32) is threadedly connected with a second fastening bolt (33), and the two ends of the rotating carrier plate (22) are fixedly connected with limiting vertical rods (34). The two ends of the lifting body (1) are fixedly connected with limiting sleeve pipes (35).

7. The automatic extrusion equipment for PVC sheathing material according to claim 6, characterized in that: The middle of the supporting bottom plate (21) is provided with a rotating hole (24), and the rotating rod (23) is located on the inner side of the rotating hole (24). The lower surface of the rotating carrier plate (22) is provided with an annular groove (26), and the fixed ring (25) is matched with the annular groove (26). The end of the first fastening bolt (27) is matched with the fixed ring (25).

8. The automatic PVC sheathing material extrusion device according to claim 6, characterized in that: The rotating handle (30) is located on the upper surface of the rotating carrier plate (22), the vertical threaded rod (29) is threadedly connected with the internally threaded pipe (31), the end of the second fastening bolt (33) is matched with the vertical threaded rod (29), the two groups of limiting vertical rods (34) and the two groups of limiting sleeve pipes (35) are symmetrically arranged about the internally threaded pipe (31), and the limiting vertical rods (34) are movably connected with the limiting sleeve pipes (35).

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