An extruder for producing energy storage cables

Abstract

The present invention relates to the field of cable processing technology, and in particular to an extruder for producing energy storage cables, comprising an extruder, a tube extrusion head, a fixed disk, an installation box, a die tube, a core rod tube and a discharge unit arranged in the installation box, wherein the discharge unit comprises a detection mechanism, a blocking mechanism and an air blowing mechanism, wherein the blocking mechanism is arranged between a discharge port and a tube extrusion cavity, the blocking mechanism has a blocking output end, the air blowing mechanism comprises an air pump, an air storage box and a rotating output end, the air pump is used for blowing air into the air storage box, the rotating output end is used for opening the air storage box to discharge gas into the tube extrusion cavity, a first detection output end is transmission-connected to the blocking output end, the blocking output end is used for cutting off the connection between the tube extrusion cavity and the discharge port, and a second detection output end is transmission-connected to the rotating output end. The device can automatically discharge residual insulating material in the tube extrusion cavity, thereby improving production efficiency and extending the service life of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing, and in particular to an extruder for producing energy storage cables. Background Art

[0002] Cables are usually made of several or several groups of wires (at least two wires in each group) twisted together, and their shape is similar to a rope. Each group of wires is insulated from each other and often twisted around a center. The entire cable is covered with an insulating layer, showing the characteristics of internal power conduction and external insulation.

[0003] In the cable processing process, using an extruder to wrap the outer surface of the cable conductor with an insulation layer is a key step. When producing the cable insulation layer, the existing extruder needs to first pour a variety of granular raw materials into the barrel, and then the spiral extrusion rod in the extrusion tube starts to rotate, cutting and mixing the raw materials while heating them to melt them, and finally extruding them through the extrusion die and coating them on the cable conductor.

[0004] There are some problems with the traditional production process. When a section of cable is about to be coated with an insulation layer, the extruder often stops delivering the insulation material first. At this time, the molten insulation material in the barrel near the mold head will continue to extrude a short section forward with the cable due to inertia and pressure, resulting in a tail at the end of the cable. After cooling and shaping, the staff needs to cut and trim the excess insulation material at the end of the cable to ensure that it meets the product quality requirements. However, after the extruder stops extruding, only a small amount of insulation material in the mold is discharged, and a large amount of insulation material remains. After cleaning these residual insulation materials, the equipment can carry out the next coating work, which undoubtedly affects the work efficiency. Moreover, when cleaning the residual insulation material, a local heating device is usually set around the mold to soften the residual material again before discharging. This method not only increases the loss of insulation material, but also prolongs the debugging time before the equipment works. Summary of the invention

[0005] Based on this, it is necessary to provide an extruder for the production of energy storage cables in response to the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is as follows: an extruder for the production of energy storage cables, comprising an extruder body, a discharge port arranged on the extruder body and a tube extrusion head arranged on the discharge port, the tube extrusion head also comprising a fixed disk coaxially fixedly arranged on the discharge port, an installation box fixedly connected to the fixed disk, a die tube fixedly arranged inside the installation box, a core rod tube coaxially arranged in the die tube and a discharge unit arranged in the installation box, an extrusion cavity is formed between the inner wall of the die tube and the outer wall of the core rod tube, the extrusion cavity is connected to the discharge port, the core rod tube is used for the cable body to pass through, and the discharge unit comprises a detection mechanism, a blocking mechanism and an air blowing mechanism The detection unit has a first detection output end and a second detection output end, the first detection output end and the second detection output end are against the cable body, the blocking mechanism is arranged between the discharge port and the tube extrusion cavity, the blocking mechanism has a blocking output end, the blowing mechanism includes a pump air machine fixedly arranged in the installation box, an air storage box coaxially fixedly arranged on the core rod tube and a rotating output end, the pump air machine is used to blow air into the air storage box, the rotating output end is used to open the air storage box to discharge gas into the tube extrusion cavity, the first detection output end is transmission-connected to the blocking output end, the blocking output end is used to cut off the connection between the tube extrusion cavity and the discharge port, and the second detection output end is transmission-connected to the rotating output end.

[0007] Furthermore, a positioning seat is fixedly arranged in the installation box, a heat preservation and heating ring is fixedly arranged on the positioning seat, and the die tube is coaxially fixedly arranged in the heat preservation and heating ring.

[0008] Furthermore, the blocking mechanism includes a limit box fixedly arranged in the installation box, a discharge through hole opened on the limit box, a blocking circular plate slidably arranged in the limit box, and a power lever fixedly arranged on the blocking circular plate.

[0009] Furthermore, the material blocking circular plate is the material blocking output end of the material blocking mechanism.

[0010] Furthermore, the blowing mechanism also includes a blowing pipe arranged on the air outlet of the air pump, the air storage box includes an annular bottom plate coaxially fixed on the die tube, a supporting side tube coaxially fixed on the annular bottom plate, a sealing ring plate coaxially rotatably arranged in the supporting side tube and an annular cover plate coaxially fixed on the supporting side tube, the core rod tube passes through the center of the annular bottom plate and is fixedly connected to the annular bottom plate, a plurality of air leakage notches are opened in the annular bottom plate in the shape of an annular shape, the air leakage notches are connected with the extrusion tube cavity, a plurality of sealing strips are arranged in the shape of annular shape on the sealing ring plate, the size of the sealing strips matches that of the air leakage notches and the number is the same, the other end of the blowing pipe is connected with the supporting side tube, and an electromagnetic valve is arranged at the connection between the blowing pipe and the supporting side tube, and the electromagnetic valve is used to close or open the blowing pipe.

[0011] Furthermore, the sealing ring plate is the rotating output end of the blowing mechanism.

[0012] Furthermore, the detection mechanism also includes a top supporting transverse plate fixedly arranged in the installation box, a first limiting tooth plate elastically slidably arranged on the top supporting transverse plate, a first clamping wheel arranged at the bottom end of the first limiting tooth plate by rotation of a wheel frame, a bottom supporting transverse plate arranged below the top supporting transverse plate and fixedly connected to the installation box, a second limiting tooth plate elastically slidably arranged on the bottom supporting transverse plate, and a second clamping wheel arranged at the top end of the second limiting tooth plate by rotation of the wheel frame, the first clamping wheel is the first detection output end of the detection mechanism, and the second clamping wheel is the second detection output end of the detection mechanism.

[0013] Furthermore, the blocking mechanism also includes an L-shaped support rod fixedly arranged on the end of the power lever away from the material blocking circular plate, a transmission rack arranged on the L-shaped support rod, a positioning bracket fixedly arranged on the top supporting horizontal plate, a positioning rod rotatably arranged on the positioning bracket and a positioning gear and a transmission gear coaxially fixed on the positioning rod. The L-shaped support rod is slidably connected to the top supporting horizontal plate, the first limit tooth plate is meshed with the positioning gear, and the transmission gear is meshed with the transmission rack.

[0014] Furthermore, the blocking mechanism also includes a limit bracket fixedly arranged on the bottom supporting cross plate, a limit rod rotatably arranged on the limit bracket, a limit gear coaxially fixedly arranged on the limit rod, an umbrella gear bracket arranged beside the limit rod and fixedly connected to the bottom supporting cross plate, a transmission umbrella gear and a power umbrella gear rotatably arranged on the umbrella gear bracket, a transmission tube coaxially fixedly arranged on the sealing ring plate, a transmission ring frame coaxially fixedly arranged on the transmission tube and a power gear ring coaxially fixedly arranged on the transmission ring frame, the limit gear is meshed with the second limit gear plate, the limit rod is connected to the transmission umbrella gear through a pulley, the transmission umbrella gear is meshed with the power umbrella gear, the power umbrella gear is meshed with the power gear ring, and the transmission tube is connected to the core rod tube and the annular cover plate dynamic seal.

[0015] Furthermore, the discharge unit also includes a bearing support plate fixedly arranged in the installation box, a turbine fan fixedly arranged on the bearing support plate, a trigger rubber wheel rotatably arranged at the end of the bearing support plate, an air collecting hood coaxially fixedly arranged on the turbine fan, an air intake pipe arranged on the air collecting hood and an air discharge pipe arranged on the outer wall of the supporting side pipe, the trigger rubber wheel is abutted against the cable body, the power input shaft of the turbine fan is connected to the trigger rubber wheel through a pulley, a pressure relief valve is arranged on the air discharge pipe, the other end of the air intake pipe is connected to the supporting side pipe, and a one-way valve is arranged at the connection between the air intake pipe and the supporting side pipe.

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

[0017] Firstly, the device can automatically detect whether the cable body is completely pulled out. When the cable body is completely pulled out, the device can automatically cut off the delivery of the molten insulating material through a purely mechanical mechanism, and automatically open the gas storage box, and then pump air into the extrusion tube cavity to discharge all the residual insulating material in the extrusion tube cavity;

[0018] Second, the device can automatically store gas in the gas storage box during the cable body coating process by setting a turbo fan, and after the gas leakage gap is opened, the gas accumulated in the gas storage box is used to push the molten insulating material, thereby preventing the molten insulating material from flowing into the gas storage box at the moment the gas leakage gap is opened, thereby affecting the normal operation of the equipment;

[0019] Third: The device automatically discharges the molten insulating material remaining in the extrusion tube cavity, reduces the workload, reduces the number of equipment shutdowns for cleaning, and improves equipment production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0021] Figure 2 is a schematic diagram of the three-dimensional structure decomposition at the discharge port of the embodiment;

[0022] Figure 3 2 is a cross-sectional view of a tube extrusion die head of an embodiment Figure 1 ;

[0023] Figure 4 3D cutaway view of the tube extrusion die head of the embodiment Figure 1 ;

[0024] Figure 5 yes Figure 4 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 6 2 is a cross-sectional view of a tube extrusion die head of an embodiment Figure 2 ;

[0026] Figure 7 3D cutaway view of the tube extrusion die head of the embodiment Figure 2 ;

[0027] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at B in the middle;

[0028] Fig. 9 is a schematic diagram of the three-dimensional structure of the gas storage box of the embodiment;

[0029] Fig.10 1 is a schematic diagram of the exploded three-dimensional structure of the gas storage box and the extrusion tube cavity of the embodiment;

[0030] Fig.11 is a schematic diagram of the exploded three-dimensional structure of the top supporting horizontal plate of the embodiment;

[0031] Fig.12 is a schematic diagram of the exploded three-dimensional structure of the bottom support horizontal plate of the embodiment;

[0032] Fig.13It is a schematic diagram of the three-dimensional structure of the bearing support plate of the embodiment.

[0033] The numbers in the figure are: 1, extruder; 2, discharge port; 3, tube extrusion head; 4, fixed plate; 5, installation box; 6, positioning seat; 7, heat preservation heating ring; 8, die tube; 9, tube extrusion cavity; 10, mandrel tube; 11, cable body; 12, limit box; 13, material blocking circular plate; 14, power lever; 15, discharge through hole; 16, air storage box; 17, annular bottom plate; 18, air release gap; 19, supporting side tube; 20, annular cover plate; 21, transmission ring frame; 22, power gear ring; 23, air release pipe; 24, pressure relief valve; 25, sealing ring plate; 26, sealing strip; 27, transmission pipe; 28, top Supporting cross plate; 29, L-shaped support rod; 30, transmission rack; 31, first limit tooth plate; 32, first clamping wheel; 33, positioning bracket; 34, positioning rod; 35, positioning gear; 36, transmission gear; 37, bottom supporting cross plate; 38, second limit tooth plate; 39, second clamping wheel; 40, limit bracket; 41, limit rod; 42, limit gear; 43, bevel gear bracket; 44, transmission bevel gear; 45, power bevel gear; 46, pump air machine; 47, air blowing pipe; 48, solenoid valve; 49, bearing support plate; 50, trigger rubber wheel; 51, turbine fan; 52, air collecting hood; 53, air intake pipe. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] refer to Figures 1 to 13 :

[0036] An extruder for producing energy storage cables, comprising an extruder body 1, a discharge port 2 arranged on the extruder body 1 and a tube extrusion head 3 arranged on the discharge port 2, the tube extrusion head 3 also comprising a fixed disk 4 coaxially fixedly arranged on the discharge port 2, an installation box 5 fixedly connected to the fixed disk 4, a die tube 8 fixedly arranged inside the installation box 5, a core rod tube 10 coaxially arranged in the die tube 8 and a discharge unit arranged in the installation box 5, a tube extrusion cavity 9 is formed between the inner wall of the die tube 8 and the outer wall of the core rod tube 10, the tube extrusion cavity 9 is communicated with the discharge port 2, the core rod tube 10 is used for allowing a cable body 11 to pass through, the discharge unit comprises a detection mechanism, a blocking mechanism and a blowing mechanism, the detection unit has a first detection output end and a second detection output end, the first detection output end and the second detection output end are against the cable body 11, the blocking mechanism is arranged between the discharge port 2 and the tube extrusion cavity 9, the blocking mechanism has a blocking output end, and the blowing mechanism comprises a pump air machine 46 (such as Figure 6As shown), an air storage box 16 and a rotating output end are coaxially fixedly arranged on the core rod tube 10, the air pump 46 is used to blow air into the air storage box 16, the rotating output end is used to open the air storage box 16 to discharge gas into the tube extrusion cavity 9, the first detection output end is transmission-connected with the blocking output end, the blocking output end is used to cut off the connection between the tube extrusion cavity 9 and the discharge port 2, and the second detection output end is transmission-connected with the rotating output end.

[0037] It should be noted that the front end of the cable body 11 is pulled by a pulling device (such as Figure 1 As shown), the cable pulling device is a mature prior art and will not be described in detail here. When the device is in operation, the extruder body 1 heats the insulating material into a molten state, and then the molten insulating material enters the tube extrusion cavity 9 from the discharge port 2. At the same time, the pulling device pulls the cable body 11 through the core rod tube 10. As the cable body 11 is pulled out, the molten insulating material is formed into a tubular shape under the action of the die tube 8 and is coated on the cable body 11. When the cable body 11 is pulled by the pulling device, the first detection output end and the second detection output end respectively contact the cable body 11. When the end of the cable body 11 passes between the first detection output end and the second detection output end, the first detection output end drives the blocking mechanism to operate, causing the blocking output end to cut off the connection between the discharge port 2 and the tube extrusion cavity 9, and then the extruder body 1 temporarily stops operating. At the same time, the second detection output end drives the rotating output end of the blowing mechanism to operate. The rotating output end operates to open the air storage box 16, and then the air pump 46 starts and Gas is pumped into the gas storage box 16, and then the gas enters the tube extrusion cavity 9, thereby pushing the molten insulating material remaining in the tube extrusion cavity 9, causing the molten insulating material to continue to move forward under the push of the gas until it is completely discharged from the tube extrusion cavity 9. At this time, the end of the cable body 11 is also just pulled out of the tube extrusion machine head 3, and the part of the molten insulating material remaining in the tube extrusion cavity 9 will also form a tail at the end of the cable body 11, so that the subsequent insulating material can completely cover the cable body 11 after thermal expansion and contraction, and then the extrusion production of the entire cable body 11 can be completed through the cable shaping process. In this device, by setting a discharge unit, the insulation material delivery can be automatically cut off when the cable body 11 is about to be completely pulled out, and the insulation material remaining in the tube extrusion cavity 9 can be automatically discharged after the insulation material stops delivering, so that the staff does not need to perform cleaning work frequently, thereby reducing the workload and improving the production efficiency of the equipment.

[0038] In order to show how the die tube 8 and the mandrel tube 10 are arranged in the installation box 5, the following features are also specifically provided:

[0039] A positioning seat 6 is fixedly arranged in the installation box 5 , a heat preservation and heating ring 7 is fixedly arranged on the positioning seat 6 , and a die tube 8 is coaxially fixedly arranged in the heat preservation and heating ring 7 .

[0040] When the equipment is in operation, the heat preservation heating ring 7 can ensure that the insulating material is at a suitable temperature and ensure that the insulating material can be better coated on the cable body 11.

[0041] In order to show the detailed structure of the blocking mechanism, the following features are also set:

[0042] The blocking mechanism includes a limit box 12 (such as Fig. 9 As shown), a discharge through hole 15 (as shown) opened on the limit box 12 Fig.11 As shown), a material-blocking circular plate 13 slidably disposed in the limit box 12 and a power lever 14 fixedly disposed on the material-blocking circular plate 13.

[0043] The material blocking circular plate 13 is the material blocking output end of the material blocking mechanism.

[0044] When the equipment is running, when the end of the cable body 11 does not collide with the first detection output end, the first detection output end drives the power lever 14 to move, and the movement of the power lever 14 drives the material blocking circular plate 13 to slide in the limit box 12, thereby blocking the discharge hole 15, so as to prevent the insulating material from continuing to be transported to the extrusion tube cavity 9. It should also be noted that a contact sensor is provided in the limit box 12 (this is a mature existing technology and will not be described in detail here), so that when the material blocking circular plate 13 blocks the discharge hole 15, the contact sensor can transmit a signal to the controller, and then the controller controls the extruder body 1 to suspend operation.

[0045] In order to show the detailed structure of the blowing mechanism, the following features are also set:

[0046] The blowing mechanism also includes a blowing pipe 47 disposed on the air outlet of the pump 46, and the air storage box 16 includes an annular bottom plate 17 coaxially fixedly disposed on the die tube 8, a supporting side pipe 19 coaxially fixedly disposed on the annular bottom plate 17 (such as Figure 8 As shown), a sealing ring plate 25 coaxially rotatably arranged in the supporting side tube 19 and an annular cover plate 20 coaxially fixedly arranged on the supporting side tube 19, the core rod tube 10 passes through the center of the annular bottom plate 17 and is fixedly connected to the annular bottom plate 17, a plurality of air leakage notches 18 are provided in annular shape on the annular bottom plate 17, the air leakage notches 18 are connected with the tube extrusion cavity 9, a plurality of sealing strips 26 are provided in annular shape on the sealing ring plate 25, the sealing strips 26 match the air leakage notches 18 in size and are the same in number, the other end of the blowing pipe 47 is connected with the supporting side tube 19, and an electromagnetic valve 48 is provided at the connection between the blowing pipe 47 and the supporting side tube 19, and the electromagnetic valve 48 is used to close or open the blowing pipe 47.

[0047] The sealing ring plate 25 is the rotating output end of the blowing mechanism.

[0048] It should be noted that when the equipment is performing tube extrusion coating, the sealing strip 26 blocks the air leakage gap 18, and the sealing ring plate 25 is dynamically sealed to the annular bottom plate 17. When the device is running, the second detection output end drives the sealing ring plate 25 to rotate, and the sealing ring plate 25 rotates so that the sealing strip 26 no longer blocks the air leakage gap 18, and then the solenoid valve 48 opens the air blowing pipe 47, and then the air pump 46 pumps the gas into the supporting side tube 19 through the air blowing pipe 47, and then enters the tube extrusion cavity 9 from the air leakage gap 18, thereby pushing the molten insulating material remaining in the tube extrusion cavity 9 to continue to move.

[0049] In order to show the detailed structure of the detection mechanism, the following features are also set:

[0050] The detection mechanism also includes a top support horizontal plate 28 (such as Fig.11 As shown in the figure), a first limiting tooth plate 31 elastically slidably arranged on the top supporting transverse plate 28, a first clamping wheel 32 rotatably arranged at the bottom end of the first limiting tooth plate 31 by a wheel frame, a bottom supporting transverse plate 37 arranged below the top supporting transverse plate 28 and fixedly connected to the mounting box 5, a second limiting tooth plate 38 elastically slidably arranged on the bottom supporting transverse plate 37, and a second clamping wheel 39 rotatably arranged at the top end of the second limiting tooth plate 38 by a wheel frame, the first clamping wheel 32 is the first detection output end of the detection mechanism, and the second clamping wheel 39 is the second detection output end of the detection mechanism.

[0051] It should be noted that the spring stiffness coefficients set on the first limit tooth plate 31 and the second limit tooth plate 38 are the same. When the equipment is not working, the first tension wheel 32 and the second tension wheel 39 are in contact with each other. When the equipment starts to wrap, the cable body 11 is passed between the first tension wheel 32 and the second tension wheel 39 by the traction device, and then the normal wrapping of the cable body 11 begins. When the coating of the cable body 11 is about to end, the end of the cable body 11 passes between the first tension wheel 32 and the second tension wheel 39, and then the first limit tooth plate 31 and the second limit tooth plate 38 are elastically reset. In this process, the first limit tooth plate 31 is reset to drive the material blocking circular plate 13 to block the discharge through hole 15, and the second limit tooth plate 38 is reset to drive the blocking strip 26 to open the air venting gap 18.

[0052] In order to show the connection relationship between the first detection output end and the material blocking circular plate 13, the following features are also specifically set:

[0053] The blocking mechanism also includes an L-shaped support rod 29 fixedly arranged on the end of the power lever 14 away from the material blocking circular plate 13, a transmission rack 30 arranged on the L-shaped support rod 29, a positioning bracket 33 fixedly arranged on the top supporting horizontal plate 28, a positioning rod 34 rotatably arranged on the positioning bracket 33 and a positioning gear 35 and a transmission gear 36 coaxially fixed on the positioning rod 34. The L-shaped support rod 29 is slidably connected to the top supporting horizontal plate 28, the first limit tooth plate 31 is meshed with the positioning gear 35, and the transmission gear 36 is meshed with the transmission rack 30.

[0054] When the first limit tooth plate 31 is reset, the first limit tooth plate 31 drives the positioning gear 35 to rotate, the rotation of the positioning gear 35 drives the positioning rod 34 to rotate, the rotation of the positioning rod 34 drives the transmission gear 36 to rotate, the rotation of the transmission gear 36 drives the transmission rack 30 to move, and then drives the L-shaped support rod 29 to slide on the top supporting cross plate 28, causing the L-shaped support rod 29 to drive the power lever 14 to move, so that the blocking circular plate 13 blocks the discharge through hole 15.

[0055] In order to show the connection relationship between the second detection output terminal and the rotation output terminal, the following features are also specifically set:

[0056] The blocking mechanism also includes a limit bracket 40 fixedly arranged on the bottom support cross plate 37, a limit rod 41 rotatably arranged on the limit bracket 40, a limit gear 42 coaxially fixedly arranged on the limit rod 41, an umbrella gear bracket 43 arranged beside the limit rod 41 and fixedly connected to the bottom support cross plate 37, a transmission umbrella gear 44 and a power umbrella gear 45 rotatably arranged on the umbrella gear bracket 43, a transmission tube 27 coaxially fixedly arranged on the blocking ring plate 25, a transmission ring frame 21 coaxially fixedly arranged on the transmission tube 27 and a power ring gear 22 coaxially fixedly arranged on the transmission ring frame 21, the limit gear 42 is meshed with the second limit gear plate 38, the limit rod 41 is connected to the transmission umbrella gear 44 through a pulley, the transmission umbrella gear 44 is meshed with the power umbrella gear 45, the power umbrella gear 45 is meshed with the power ring gear 22, and the transmission tube 27 is dynamically sealed and connected to the core rod tube 10 and the annular cover plate 20.

[0057] When the second limit gear plate 38 is reset, the second limit gear plate 38 drives the limit gear 42 to rotate, the rotation of the limit gear 42 drives the limit rod 41 to rotate, the rotation of the limit rod 41 drives the transmission bevel gear 44 to rotate, the rotation of the transmission bevel gear 44 drives the power bevel gear 45 to rotate, the rotation of the power bevel gear 45 drives the power gear ring 22 to rotate, the rotation of the power gear ring 22 drives the transmission ring frame 21 to rotate, the rotation of the transmission ring frame 21 drives the transmission tube 27 to rotate, the rotation of the transmission tube 27 drives the sealing ring plate 25 to rotate, the rotation of the sealing ring plate 25 causes the sealing strip 26 to open the air leakage gap 18.

[0058] In order to ensure that the molten insulating material does not overflow into the gas storage box 16 when the sealing strip 26 opens the air leakage gap 18, the following features are also specifically provided:

[0059] The discharge unit further includes a bearing support plate 49 (such as Fig.13 ), a turbine fan 51 fixedly mounted on the supporting plate 49, a trigger rubber wheel 50 rotatably mounted on the end of the supporting plate 49, an air collecting cover 52 coaxially fixedly mounted on the turbine fan 51, an air inlet pipe 53 mounted on the air collecting cover 52, and an air discharge pipe 23 (as shown in FIG. 1 ) mounted on the outer wall of the supporting side pipe 19. Fig. 9 As shown in the figure, the trigger rubber wheel 50 is against the cable body 11, the power input shaft of the turbine fan 51 is connected to the trigger rubber wheel 50 through a pulley, a pressure relief valve 24 is provided on the air release pipe 23, the other end of the air intake pipe 53 is connected to the support side pipe 19, and a one-way valve is provided at the connection between the air intake pipe 53 and the support side pipe 19.

[0060] When the equipment is running, the cable body 11 rotates against the trigger rubber wheel 50, and the rotation of the trigger rubber wheel 50 drives the turbine fan 51 to run. The turbine fan 51 starts to blow air, and the wind flows into the air storage box 16 through the air gathering hood 52 and the air inlet pipe 53. As the wind flows more and more in the air storage box 16, the pressure in the air storage box 16 will increase (at this time, the sealing strip 26 is still blocking the air leakage gap 18, and the air storage box 16 is in a sealed state). It should be noted that the pressure relief valve 24 on the air relief pipe 23 is used to automatically exhaust and relieve pressure when the pressure value in the gas storage box 16 exceeds a certain value. When the end of the cable body 11 passes through the trigger rubber wheel 50, the turbine fan 51 stops running, and then waits for the sealing strip 26 to open the air relief gap 18. At this time, the gas stored in the gas storage box 16 will resist the molten insulating material overflowing from the air relief gap 18, preventing the molten insulating material from entering the gas storage box 16, and then wait for the pump 46 to deliver gas to the gas storage box 16, and then push the molten insulating material to move in the extrusion tube cavity 9 until it is discharged.

[0061] The working principle of this device is as follows: when the equipment is running, the cable body 11 rotates against the trigger rubber wheel 50, and the rotation of the trigger rubber wheel 50 drives the turbine fan 51 to run. The turbine fan 51 starts to blow air, and the wind flows into the air storage box 16 through the air gathering hood 52 and the air inlet pipe 53. As the wind flows more and more in the air storage box 16, the pressure in the air storage box 16 will increase. The pressure relief valve 24 on the air relief pipe 23 will automatically release pressure during the process of air gathering in the air storage box 16 to prevent damage caused by excessive pressure in the air storage box 16. When the end of the cable body 11 passes between the first tension wheel 32 and the second tension wheel 39, the first limit tooth plate 31 and the second limit tooth plate 38 are elastically reset. During this process, the first limit tooth plate 31 drives the positioning gear 35 to rotate, the positioning gear 35 rotates to drive the positioning rod 34, the positioning rod 34 rotates to drive the transmission gear 36, the transmission gear 36 rotates to drive the transmission rack 30 to move, and then drives the L-shaped support rod 29 to slide on the top support cross plate 28, so that the L-shaped support rod 29 drives the power lever 14 to move, so that the material blocking circular plate 13 blocks the discharge through hole 15; the second limit tooth plate 38 drives the limit gear 42 to rotate, the limit gear 42 rotates to drive the limit rod 41 to rotate, and the limit rod 41 rotates with The dynamic transmission bevel gear 44 rotates, and the rotation of the transmission bevel gear 44 drives the power bevel gear 45 to rotate. The rotation of the power bevel gear 45 drives the power gear ring 22 to rotate. The rotation of the power gear ring 22 drives the transmission ring frame 21 to rotate. The rotation of the transmission ring frame 21 drives the transmission tube 27 to rotate. The rotation of the transmission tube 27 drives the sealing ring plate 25 to rotate. The sealing ring plate 25 rotates so that the sealing strip 26 opens the air leakage gap 18. At the moment when the air leakage gap 18 is opened, the gas accumulated in the gas storage box 16 will rush out from the air leakage gap 18, blocking the molten insulating material from entering the gas storage box 16. Then, the air pump 46 is started and gas is pumped into the gas storage box 16. Then the gas enters the tube extrusion cavity 9, thereby pushing all the molten insulating material remaining in the tube extrusion cavity 9 to be discharged.

[0062] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An extruder for producing energy storage cables, comprising an extruder body (1), a discharge port (2) arranged on the extruder body (1), and a tube extrusion die (3) arranged on the discharge port (2), characterized in that: The tube extrusion machine head (3) further comprises a fixed plate (4) coaxially fixedly arranged on the discharge port (2), an installation box (5) fixedly connected to the fixed plate (4), a die tube (8) fixedly arranged inside the installation box (5), a core rod tube (10) coaxially arranged inside the die tube (8), and a discharge unit arranged inside the installation box (5); a tube extrusion cavity (9) is formed between the inner wall of the die tube (8) and the outer wall of the core rod tube (10); the tube extrusion cavity (9) is communicated with the discharge port (2); the core rod tube (10) is used for allowing the cable body (11) to pass through; the discharge unit comprises a detection mechanism, a blocking mechanism and an air blowing mechanism; the detection unit comprises a first detection output end and a second detection output end; the first detection output end is connected to the The second detection output end is abutted against the cable body (11); the blocking mechanism is arranged between the discharge port (2) and the tube extrusion cavity (9); the blocking mechanism has a blocking output end; the blowing mechanism comprises a pumping machine (46) fixedly arranged in the installation box (5), a gas storage box (16) coaxially fixedly arranged on the core rod tube (10) and a rotating output end; the pumping machine (46) is used to blow gas into the gas storage box (16); the rotating output end is used to open the gas storage box (16) to discharge gas into the tube extrusion cavity (9); the first detection output end is transmission-connected to the blocking output end; the blocking output end is used to cut off the connection between the tube extrusion cavity (9) and the discharge port (2); and the second detection output end is transmission-connected to the rotating output end.

2. An extruder for producing energy storage cables according to claim 1, characterized in that: A positioning seat (6) is fixedly arranged in the installation box (5), a heat preservation and heating ring (7) is fixedly arranged on the positioning seat (6), and the die tube (8) is coaxially fixedly arranged in the heat preservation and heating ring (7).

3. An extruder for producing energy storage cables according to claim 2, characterized in that: The material blocking mechanism comprises a limit box (12) fixedly arranged in the installation box (5), a material discharge through hole (15) opened in the limit box (12), a material blocking circular plate (13) slidably arranged in the limit box (12), and a power lever (14) fixedly arranged on the material blocking circular plate (13).

4. An extruder for producing energy storage cables according to claim 3, characterized in that: The material blocking circular plate (13) is the material blocking output end of the material blocking mechanism.

5. An extruder for producing energy storage cables according to claim 4, characterized in that: The blowing mechanism also includes a blowing pipe (47) arranged on the air outlet of the pump (46); the air storage box (16) includes an annular bottom plate (17) coaxially fixedly arranged on the die tube (8), a supporting side tube (19) coaxially fixedly arranged on the annular bottom plate (17), a sealing ring plate (25) coaxially rotatably arranged in the supporting side tube (19), and an annular cover plate (20) coaxially fixedly arranged on the supporting side tube (19); the core rod tube (10) passes through the center of the annular bottom plate (17) and is fixedly connected to the annular bottom plate (17); A plurality of air leakage notches (18) are provided in an annular shape on the bottom plate (17), the air leakage notches (18) are communicated with the tube extrusion cavity (9), a plurality of sealing strips (26) are provided in an annular shape on the sealing ring plate (25), the sealing strips (26) are matched in size with the air leakage notches (18) and are the same in number, the other end of the air blowing pipe (47) is communicated with the inside of the supporting side pipe (19), and a solenoid valve (48) is provided at the connection between the air blowing pipe (47) and the supporting side pipe (19), and the solenoid valve (48) is used to close or open the air blowing pipe (47).

6. An extruder for producing energy storage cables according to claim 5, characterized in that: The sealing ring plate (25) is the rotating output end of the blowing mechanism.

7. An extruder for producing energy storage cables according to claim 6, characterized in that: The detection mechanism further comprises a top support transverse plate (28) fixedly arranged in the installation box (5), a first limit tooth plate (31) elastically slidably arranged on the top support transverse plate (28), a first clamping wheel (32) rotatably arranged at the bottom end of the first limit tooth plate (31) by a wheel frame, a bottom support transverse plate (37) arranged below the top support transverse plate (28) and fixedly connected to the installation box (5), a second limit tooth plate (38) elastically slidably arranged on the bottom support transverse plate (37), and a second clamping wheel (39) rotatably arranged at the top end of the second limit tooth plate (38) by a wheel frame, wherein the first clamping wheel (32) is a first detection output end of the detection mechanism, and the second clamping wheel (39) is a second detection output end of the detection mechanism.

8. An extruder for producing energy storage cables according to claim 7, characterized in that: The blocking mechanism further comprises an L-shaped support rod (29) fixedly arranged at one end of the power lever (14) away from the material blocking circular plate (13), a transmission rack (30) arranged on the L-shaped support rod (29), a positioning bracket (33) fixedly arranged on the top supporting horizontal plate (28), a positioning rod (34) rotatably arranged on the positioning bracket (33), and a positioning gear (35) and a transmission gear (36) coaxially fixedly arranged on the positioning rod (34). The L-shaped support rod (29) is slidably connected to the top supporting horizontal plate (28), the first limit tooth plate (31) is meshed with the positioning gear (35), and the transmission gear (36) is meshed with the transmission rack (30).

9. An extruder for producing energy storage cables according to claim 8, characterized in that: The blocking mechanism further comprises a limit bracket (40) fixedly arranged on the bottom support transverse plate (37), a limit rod (41) rotatably arranged on the limit bracket (40), a limit gear (42) coaxially fixedly arranged on the limit rod (41), a bevel gear bracket (43) arranged beside the limit rod (41) and fixedly connected to the bottom support transverse plate (37), a transmission bevel gear (44) and a power bevel gear (45) rotatably arranged on the bevel gear bracket (43), and a transmission pipe (25) coaxially fixedly arranged on the blocking ring plate (25). 7), a transmission ring frame (21) coaxially fixedly arranged on the transmission tube (27) and a power ring gear (22) coaxially fixedly arranged on the transmission ring frame (21), a limit gear (42) meshing with a second limit gear plate (38), a limit rod (41) and a transmission bevel gear (44) connected via a pulley, the transmission bevel gear (44) meshing with the power bevel gear (45), the power bevel gear (45) meshing with the power ring gear (22), and the transmission tube (27) being dynamically sealedly connected with the core rod tube (10) and the annular cover plate (20).

10. An extruder for producing energy storage cables according to claim 9, characterized in that: The discharge unit further comprises a bearing support plate (49) fixedly arranged in the installation box (5), a turbine fan (51) fixedly arranged on the bearing support plate (49), a trigger rubber wheel (50) rotatably arranged at the end of the bearing support plate (49), an air collecting cover (52) coaxially fixedly arranged on the turbine fan (51), an air intake pipe (53) arranged on the air collecting cover (52), and an air discharge pipe (23) arranged on the outer wall of the support side pipe (19), the trigger rubber wheel (50) abuts against the cable body (11), the power input shaft of the turbine fan (51) is connected to the trigger rubber wheel (50) through a pulley, a pressure relief valve (24) is arranged on the air discharge pipe (23), the other end of the air intake pipe (53) is communicated with the inside of the support side pipe (19), and a one-way valve is arranged at the connection between the air intake pipe (53) and the support side pipe (19).

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