A cable material production device for mineral insulated fireproof cable

Abstract

This invention relates to the field of cable material production technology, and particularly to a cable material production device for mineral-insulated fireproof cables, comprising a shell assembly, a screening assembly, a power assembly, and a cooling assembly. The shell assembly includes a shell body, with an arc-shaped base plate at the bottom of the inner wall of the shell body. Two fixing rods are located at the bottom of the base plate, and multiple electromagnetic positioning seats are located on the outer sides of the fixing rods. The screening assembly includes two symmetrically arranged movable plates, with two symmetrically distributed first screen plates between the two movable plates. This device has high efficiency and good unblocking effect on the first and second screen plates. It can also adaptively adjust the swing amplitude and frequency of the movable plates according to the blockage of the cable material inside the device, exhibiting strong adaptability and high stability. Combined with other structures, it improves screening efficiency, achieves a high degree of cleanliness inside the device, has strong structural versatility, is simple to operate, energy-saving, emission-reducing, and environmentally friendly.

Description

Technical Field

[0001] This invention relates to the field of cable material production technology, and in particular to a cable material production apparatus for mineral-insulated fireproof cables. Background Technology

[0002] Plastics used for insulation and sheathing of wires and cables are commonly known as cable materials, which include various types such as rubber, plastic, and nylon. Rubber granules or plastic granules are used as raw materials for cables and are generally used or sold as semi-finished products. Therefore, the production equipment for cable materials plays a crucial role.

[0003] Chinese invention patent 2020115958220 discloses a device for producing cable materials, belonging to the field of cable production technology. Specifically, it includes a heating chamber, a conveying chamber, a movable plate, a cooling chamber, and a storage chamber. The heating chamber has a feed inlet at its top, a temperature sensor installed on one side of the top of the interior of the heating chamber, a heating pipe installed in the middle of the interior of the heating chamber, and a discharge port at the bottom of the heating chamber, with a first valve installed on the discharge port. After production, the cable materials may vary in size, and larger particles of plastic or rubber raw materials can have a certain impact on cable production or sales.

[0004] Chinese invention patent 2022106660368 discloses a cable material for polyvinyl chloride insulated cables, comprising the following components by weight: a production device for the cable material for polyvinyl chloride insulated cables, including a housing, wherein a first preheating mechanism, a second preheating mechanism, and a stirring mechanism are arranged sequentially from top to bottom inside the housing; the cable material may stick together and clump together when it is not cooled, which will also affect its subsequent use.

[0005] In actual use, as the cable material is continuously screened, problems such as screen blockage will occur inside the device. This will not only reduce the screening efficiency of the cable material, but also affect the discharge efficiency and reduce the production efficiency of the cable material.

[0006] During prolonged use, a large amount of cable material will adhere to the inside of the device, which will not only reduce the cleanliness of the device but also affect the subsequent screening of cable material.

[0007] Meanwhile, existing technologies lack structures for crushing cable materials during screening, which easily leads to the accumulation of a large amount of cable material impurities and reduces subsequent screening efficiency. Even if existing technologies have structures for crushing cable materials, these structures cannot adjust the crushing efficiency and crushing area of ​​the cable material according to the degree of accumulation, thus reducing the crushing and screening effect of the cable material. Summary of the Invention

[0008] The purpose of this invention is to provide a production apparatus for mineral-insulated fire-resistant cable materials to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a cable material production device for mineral-insulated fireproof cables, comprising a shell assembly, a screening assembly, a power assembly, and a cooling assembly;

[0010] The outer casing assembly includes an outer casing body, the bottom of the inner sidewall of the outer casing body is provided with an arc-shaped base plate, the bottom of the base plate is provided with two fixing rods, and the outer side of the fixing rods is provided with multiple electromagnetic positioning seats;

[0011] The screening assembly includes two symmetrically arranged movable plates, two symmetrically distributed first screen plates between the two movable plates, a second screen plate at the bottom of one side of each movable plate, two connecting plates at the bottom of each movable plate, a positioning rod between the two connecting plates, and multiple permanent magnet movable seats corresponding to electromagnetic positioning seats on the outside of the positioning rod.

[0012] The power assembly includes two symmetrically arranged rotating rods. Multiple movable blocks are provided on the outer side of the rotating rods. A transmission rod is provided on one side of the rotating rods. Mounting seats are provided at both ends of the transmission rods. The mounting seats are engaged with the outer side wall of the movable plate through pressure sensors.

[0013] The cooling assembly includes two symmetrically arranged perforated plates;

[0014] The device achieves corresponding screening of cable materials by using different vibration amplitudes and frequencies of the first and second screen plates during use, and can also adjust the internal air pressure during the screening process to improve feeding and conveying efficiency.

[0015] Preferably, the screening component and the power component are both located inside the outer shell component, and the cooling component is located in the middle of the outer side of the outer shell component. A controller is provided on one side of the outer wall of the outer shell, and the controller electrically controls each electrical component. The power component provides power to the screening component, and the cooling component not only cools the internal cable material but also regulates the internal air pressure to improve the feeding and discharging efficiency. Both sides of the outer shell are designed with inclined structures, and the upper surface of the bottom plate has through slots with strip-shaped structures at the four corners. The two ends of the two fixing rods are located on the inner wall of the outer shell. This arrangement further improves the stability of the device.

[0016] Preferably, the top center of the outer shell is provided with a funnel-shaped feeding hopper, both sides of the bottom of the outer shell are provided with discharge pipes, the bottom of the outer shell is provided with feet, both sides of the outer shell are provided with ventilation slots, the opening of the ventilation slots is provided with mounting slots, and the perforated plate is fixed inside the mounting slots by bolts; the ventilation slots facilitate ventilation and cooling of the interior.

[0017] Preferably, the movable plate and the second screen plate each have multiple circular grooves extending through their middle portions. A mounting bolt extends through the interior of each circular groove. One end of each mounting bolt has a conical breaking block, and the other end of the mounting bolt has a locking nut, which is located at one end of the circular groove.

[0018] Preferably, both movable plates are disposed inside the outer casing, the bottom of the movable plates is configured with an arc-shaped structure adapted to the base plate, and both first screen plates are configured with an inclined structure. The second screen plate is disposed at the bottom of the first screen plate. The connecting plate is disposed through the inside of the through groove, and the bottom of the connecting plate is movably disposed on the inner wall of the outer casing by a pin. A return spring is provided between the permanent magnet movable seat and the electromagnetic positioning seat; the return spring facilitates the reset of the permanent magnet movable seat.

[0019] Preferably, a slide is provided between the two first screen plates. The slide is movably connected to the first screen plate by a pin. A guide groove is provided at the middle of both ends of the slide. A guide block is provided through the inside of the guide groove. The guide block is fixedly set on the inner wall of the outer shell. The slide improves the stability of the rotation of the first screen plate.

[0020] Preferably, the movable plate and the second screen plate each have multiple circular grooves extending through their middle sections. A mounting bolt is installed through the interior of each circular groove. One end of each mounting bolt has a conical crushing block, and the other end of the mounting bolt has a locking nut, which is located at the end of the circular groove away from the crushing block. The crushing block enables the crushing of the cable material.

[0021] Preferably, a connecting frame is provided in the middle of one side of the movable plate, and both ends of the connecting frame are movably connected to the first screen plate by pins. A sealing strip is provided in the middle of the outer side wall of the connecting frame, and the sealing strip is in contact with one end of the first screen plate. Wear-resistant sealing blocks are provided in the middle of both ends of the first screen plate, and the wear-resistant sealing blocks are fixedly installed on the inner side wall of the outer casing; this further improves the sealing performance of the device and prevents the cable material from falling off and being lost.

[0022] Preferably, the two rotating rods are respectively disposed on the outer top of the two movable plates. Both ends of the rotating rods are movably disposed on the inner wall of the outer shell through bearings. Multiple movable blocks are provided on the outer side of the rotating rods. Multiple protrusions are arranged around the outer side wall of the movable blocks. A power motor is provided at the top of the outer side wall of the outer shell. The output shaft of the power motor and one end of the rotating rod are provided with synchronous pulleys. A synchronous belt is provided between the three synchronous pulleys. The power motor starts and the rotating rods rotate through the synchronous pulleys and the synchronous belt.

[0023] The outer wall of the movable block is surrounded by multiple electric push rods, the output end of each electric push rod is provided with a protrusion, and the outer wall of the movable block is provided with multiple sets of distance sensors, which are used to detect the distance between the movable block and the protrusion. The outer surface of the multiple sets of protrusions is provided with an elastic membrane; the protrusions are moved by means of the electric push rods, and the moving distance of the protrusions relative to the transmission rods is adjusted.

[0024] Preferably, the two perforated plates are respectively disposed on the middle of the two sides of the outer shell, and an air guide shroud is provided on the outer side of one of the perforated plates. A serpentine cooling pipe is provided between the air guide shroud and the perforated plate, and a blower fan is provided in the middle of the outer side wall of the air guide shroud. The cooling pipe and the blower fan work together to cool the inside of the outer shell.

[0025] The technical effects and advantages of this invention are as follows:

[0026] 1. This invention, by setting up a shell assembly, allows the first and second screen plates to work together to screen cable materials, thereby preventing large particles from entering the next process and affecting cable production or raw material sales. The power assembly provides power to the first and second screen plates, keeping them in motion. This avoids raw materials clogging the screen holes and improves the efficiency of raw materials passing through the first and second screen plates, thus improving the device's screening efficiency for cable materials.

[0027] 2. By setting up a cooling component, the present invention allows air to circulate inside and outside the outer shell as the cable material passes through the perforated plate, thereby cooling the cable material. By setting a cooling pipe and a fan on the outside of the perforated plate, the fan and cooling pipe work together to deliver cold air into the outer shell, thereby improving the cooling efficiency of the raw material.

[0028] 3. By setting crushing blocks on the movable plate and the second screen plate, the raw materials that are stuck together fall onto the crushing blocks during the movement of the raw materials in the outer shell. The crushing blocks can break up the clumps of raw materials, thereby preventing the raw materials from clumping and affecting the use of subsequent processes. Moreover, the crushing blocks can move with the movable plate, thereby improving the crushing effect of the device on clumps of raw materials.

[0029] 4. By setting up an electromagnetic positioning seat and a permanent magnet movable seat, this invention has high efficiency and good cleaning effect for the first and second screen plates. At the same time, it can adaptively adjust the swing amplitude and swing frequency of the movable plate according to the blockage of the cable material inside the device. It has strong adaptability and high stability. Combined with other structures, it improves screening efficiency. It also has a high degree of cleanliness inside the device, strong structural versatility, simple operation, energy saving and emission reduction, and is green and environmentally friendly. Attached Figure Description

[0030] Figure 1 This is a cross-sectional view of the overall structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 3 This is a schematic diagram of the cooling component structure of the present invention.

[0033] Figure 4 This is a schematic diagram of the housing assembly structure of the present invention.

[0034] Figure 5 This is a schematic diagram of the internal structure of the outer shell assembly of the present invention.

[0035] Figure 6 This is a cross-sectional view of the housing assembly structure of the present invention.

[0036] Figure 7 This is a schematic diagram of the screening component structure of the present invention.

[0037] Figure 8 This is a schematic diagram of the second sieve plate structure of the present invention.

[0038] Figure 9 This is a schematic diagram of the movable plate structure of the present invention.

[0039] Figure 10 This is a side view of the movable plate structure of the present invention.

[0040] Figure 11 This is a schematic diagram of the structure of the broken block of the present invention.

[0041] Figure 12 This is a schematic cross-sectional view of the interior of the movable block of the present invention.

[0042] Figure 13 This is a schematic diagram of the raw material movement trajectory according to the present invention.

[0043] In the diagram: 1. Outer shell assembly; 2. Screening assembly; 3. Power assembly; 4. Cooling assembly; 101. Outer shell; 102. Base plate; 103. Through slot; 104. Fixing rod; 105. Electromagnetic positioning seat; 106. Feeding hopper; 107. Discharge pipe; 108. Foot; 109. Ventilation slot; 110. Mounting slot; 201. Movable plate; 202. First screen plate; 203. Second screen plate; 204. Connecting plate; 205. Positioning rod; 206. Permanent magnet movable seat; 207. Slide seat; 208. Guide slot; 2 09. Guide block; 210. Circular groove; 211. Mounting bolt; 212. Breaking block; 213. Locking nut; 214. Connecting frame; 215. Sealing strip; 216. Wear-resistant sealing block; 301. Rotating rod; 302. Movable block; 303. Transmission rod; 304. Mounting base; 305. Power motor; 306. Synchronous pulley; 307. Synchronous belt; 308. Electric push rod; 309. Protrusion; 310. Elastic membrane; 401. Perforated plate; 402. Air guide cover; 403. Refrigeration pipe; 404. Supply fan. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] This invention provides, for example Figures 1 to 13 The device shown is a production apparatus for mineral-insulated fireproof cable materials, including a housing assembly 1, a screening assembly 2, a power assembly 3, and a cooling assembly 4. The screening assembly 2 and the power assembly 3 are both located inside the housing assembly 1, while the cooling assembly 4 is located on the outer side of the housing assembly 1. Therefore, the screening assembly 2 is used to screen and filter the cable material, thereby improving the screening effect of the cable material. The power assembly 3 mainly provides power output. The cooling assembly 4 provides air cooling for the cable material inside, preventing the cable material from overheating and causing structural damage during the filtration process. At the same time, the airflow generated by the cooling assembly 4 can also clear the blockage of the cable material stuck inside the screening assembly 2, improving the thoroughness of the screening of the cable material.

[0046] The outer casing assembly 1 includes an outer casing 101. A controller is provided on one side of the outer wall of the outer casing 101. The controller electrically controls various electrical components. Both sides of the outer casing 101 are set with inclined structures. The bottom of the inner side wall of the outer casing 101 is provided with an arc-shaped base plate 102. The upper surface of the base plate 102 has through slots 103 at the four corners. The base plate 102 can guide the cable material at the bottom of the device, ensuring that the cable material can pass through the second screen plate 203. The bottom of the base plate 102 is provided with two fixing rods 104, and the two ends of the two fixing rods 104 are set on the inner wall of the outer casing 101. Multiple electromagnetic positioning seats 105 are provided on the outer side of the fixing rods 104. The magnetic strength of the electromagnetic positioning seats 105 is related to the magnitude of the internal current. Since the position of the base plate 102 does not change, the positions of the fixing rods 104 and the electromagnetic positioning seats 105 at the bottom of the base plate 102 will also not change.

[0047] The top center of the outer casing 101 is provided with a funnel-shaped feeding hopper 106, and both sides of the bottom of the outer casing 101 are provided with discharge pipes 107. The feeding hopper 106 can be used to feed cable material, and the discharge pipes 107 can discharge the screened cable material. The bottom of the outer casing 101 is provided with feet 108, which further improves the installation stability of the top device. Both sides of the outer casing 101 are provided with ventilation slots 109, and the opening of the ventilation slots 109 is provided with mounting slots 110. The perforated plate 401 is fixed inside the mounting slots 110 by bolts, thereby improving the installation stability of the cooling component 4 with the help of the ventilation slots 109 and the mounting slots 110.

[0048] The screening assembly 2 includes two symmetrically arranged movable plates 201, both of which are located inside the outer casing 101. The movable plates 201 vibrate and screen the material inside the outer casing 101. The bottom of the movable plates 201 is configured with an arc-shaped structure adapted to the bottom plate 102. Two symmetrically distributed first screen plates 202 are provided between the two movable plates 201, and both first screen plates 202 are configured with an inclined structure. The first screen plates 202 perform the first stage screening of the cable material. A second screen plate 203 is provided on one side of the bottom of the movable plates 201, and the second screen plate 203 is located at the bottom of the first screen plate 202. The second screen plate 203 performs the second stage screening of the cable material. The first screen plate 202 and the second screen plate 203 work together to achieve two screenings of the raw material, thereby increasing the residence time of the raw material inside the device and improving the cooling effect of the device on the cable material.

[0049] The bottom of the movable plate 201 is provided with two connecting plates 204. The connecting plates 204 are disposed through the inside of the through groove 103, and the bottom of the connecting plates 204 are movably disposed on the inner wall of the outer shell 101 by means of a pin. The setting of the connecting plates 204 allows the movable plate 201 to move around the pin, thereby limiting the swing of the movable plate 201 inside the outer shell 101 and improving its stability. At the same time, the cooperation between the connecting plates 204 and the through groove 103 can also scrape and clean the cable material attached to the top of the bottom plate 102, further improving the cleanliness and stability of the internal device.

[0050] A positioning rod 205 is provided between the two connecting plates 204. Multiple permanent magnet movable seats 206, corresponding to the electromagnetic positioning seat 105, are provided on the outer side of the positioning rod 205. A return spring is provided between the permanent magnet movable seat 206 and the electromagnetic positioning seat 105. The magnetic properties of the facing end faces of the electromagnetic positioning seat 105 and the permanent magnet movable seat 206 are different. Therefore, when the electromagnetic positioning seat 105 is energized, it becomes magnetic. The magnetic attraction force exerted by the electromagnetic positioning seat 105 on the permanent magnet movable seat 206 increases, causing the permanent magnet movable seat 206 to compress the return spring and move closer to the electromagnetic positioning seat 105. When the magnetic positioning seat 105 moves, and the protrusion 309 on the outer side of the movable block 302 presses against the transmission rod 303, the movable plate 201 rotates inward synchronously. When the protrusion 309 on the outer side of the movable block 302 disengages from the transmission rod 303, the movable plate 201 rotates in the opposite direction and resets. Therefore, during this process, the movable plate 201 vibrates at high frequency inside the outer shell 101, thereby effectively vibrating and screening the cable material on the top of the first screen plate 202 and the second screen plate 203, effectively improving the screening efficiency of the device for raw materials.

[0051] A slide 207 is provided between the two first screen plates 202, and the slide 207 is movably connected to the first screen plate 202 by a pin. Guide grooves 208 are provided at the middle of both ends of the slide 207. Guide blocks 209 are provided through the inside of the guide grooves 208, and the guide blocks 209 are fixedly set on the inner wall of the outer shell 101. The guide blocks 209 and the guide grooves 208 cooperate to allow the slide 207 to slide up and down, thereby folding the W-shaped structure formed by the movable plate 201 and the first screen plate 202.

[0052] Multiple circular grooves 210 are provided through the middle of both the movable plate 201 and the second screen plate 203. A mounting bolt 211 is provided through the interior of the circular groove 210. One end of the mounting bolt 211 is provided with a conical crushing block 212, and the other end of the mounting bolt 211 is provided with a locking nut 213. The locking nut 213 is located at the end of the circular groove 210 away from the crushing block 212. The locking nut 213 can fix the mounting bolt 211, thereby fixing the crushing block 212. The crushing block 212 can collide and crush the cable material on the surface of the movable plate 201, thereby effectively improving the screening and crushing stability of the cable material.

[0053] A connecting frame 214 is provided in the middle of one side of the movable plate 201, and both ends of the connecting frame 214 are movably connected to the first screen plate 202 through pins. A sealing strip 215 is provided in the middle of the outer side wall of the connecting frame 214, and the sealing strip 215 is in contact with one end of the first screen plate 202. The sealing strip 215 can prevent the cable material from passing directly through the gap between the movable plate 201 and the first screen plate 202, thereby improving the sealing performance inside the device.

[0054] Wear-resistant sealing blocks 216 are provided at the middle of both ends of the first screen plate 202, and the wear-resistant sealing blocks 216 are fixedly installed on the inner side wall of the outer shell 101. The wear-resistant sealing blocks 216 can prevent the cable material from passing through the gap between the first screen plate 202 and the outer shell 101.

[0055] The power assembly 3 includes two symmetrically arranged rotating rods 301. The two rotating rods 301 are respectively located on the outer top of the two movable plates 201, and both ends of the rotating rods 301 are movably mounted on the inner wall of the outer shell 101 through bearings. A transmission rod 303 is provided on one side of the rotating rod 301, and both ends of the transmission rod 303 are provided with mounting seats 304. The mounting seats 304 are engaged with the outer wall of the movable plate 201 through pressure sensors. The rotating rods 301 rotate inside the outer shell 101, and multiple movable blocks 302 are provided on the outer side of the rotating rods 301.

[0056] Multiple electric push rods 308 are arranged around the outer wall of the movable block 302. The output end of the electric push rod 308 is provided with a protrusion 309. Multiple sets of distance sensors are provided on the outer wall of the movable block 302. The distance sensors are used to detect the distance between the movable block 302 and the protrusion 309. The outer surface of the multiple sets of protrusions 309 is provided with an elastic membrane 310. Therefore, when the output speed of the power motor 305 increases, the controller synchronously controls the output end of the electric push rod 308 to extend and drive the protrusion 309 to move away from the movable block 302. The distance value detected by the distance sensor increases, and the protrusion 309, in conjunction with the change in the distance at the bottom of the movable plate 201, increases the swing amplitude of the movable plate 201. The synchronous elastic membrane 310 ensures that the outer surface of the movable block 302 is a smooth plane and ensures that the transmission of the transmission rod 303 will not be blocked when the position of the protrusion 309 changes.

[0057] Therefore, when the rotating rod 301 rotates, it drives the movable block 302 to rotate. When the movable block 302 rotates, it drives the protrusion 309 to rotate through the electric push rod 308. The rotation of the protrusion 309 causes vibration of the movable plate 201. The movable plate 201 rotates around the pin at the bottom of the connecting plate 204. At this time, the movable plate 201 drives the first screen plate 202 to move through the pin, causing the two first screen plates 202 to move relative to each other. At this time, the W-shaped structure formed by the movable plate 201 and the first screen plate 202 is folded, and the pressure value detected by the pressure sensor increases synchronously. When the amount of cable material clamped inside the movable plate 201, the first screen plate 202 and the second screen plate 203 increases, the force exerted by the movable plate 201 on the mounting base 304 increases, and the minimum pressure value detected by the pressure sensor increases synchronously.

[0058] A power motor 305 is provided at the top of the outer side wall of the outer casing 101. The output shaft of the power motor 305 and one end of the rotating rod 301 are provided with synchronous pulleys 306. A synchronous belt 307 is provided between the three synchronous pulleys 306. The power motor 305 can drive the rotating rod 301 to rotate through the synchronous pulleys 306 and the synchronous belt 307.

[0059] The cooling assembly 4 includes two symmetrically arranged perforated plates 401, which are respectively located on the middle of both sides of the outer casing 101. The perforated plates 401 have small apertures, ensuring simultaneous ventilation without causing cable leakage. An air guide shroud 402 is provided on the outer side of one of the perforated plates 401. A serpentine cooling pipe 403 is provided between the air guide shroud 402 and the perforated plate 401. A fan 404 is provided in the middle of the outer wall of the air guide shroud 402. The cooling pipe 403 can be connected to an external compressor to achieve a cooling effect. The serpentine structure increases the contact area between the cooling pipe 403 and the air, thereby improving the cooling effect of the cooling assembly 4.

[0060] In the process of screening cable material particles, the cable material shell to be processed is put into the outer shell assembly 1. The cable material passes through the screening assembly 2. Large particles of cable material that do not meet the standards are filtered and screened by the screening assembly 2. Small particles of cable material that meet the standards pass through the screening assembly 2 and are discharged from the outer shell assembly 1. During this process, the power assembly 3 provides power to the screening assembly 2, so that the first screen plate 202 and the second screen plate 203 in the screening assembly 2 remain in motion, thereby avoiding the screen holes from being blocked. When the agglomerated cable material particles fall above the screening assembly 2, the crushing block 212 in the screening assembly 2 can crush the agglomerated cable material particles. At the same time, the cooling assembly 4 delivers cold air to the inside of the outer shell 101 to cool down the cable material particles.

[0061] When the power assembly 3 provides power to the screening assembly 2, the controller controls the power motor 305 to drive the rotating rod 301 to rotate via the synchronous pulley 306 and synchronous belt 307. The rotating rod 301 drives the movable block 302 to rotate. The protrusion 309 on the outer side of the movable block 302 presses against the transmission rod 303, causing the transmission rod 303 to drive the movable plate 201 to move. The movable plate 201 rotates around the pin at the bottom of the connecting plate 204. At this time, the movable plate 201 drives the first screen plate 202 to move via the pin, causing the two first screen plates 202 to move relative to each other. At this time, the movable plate 201 and the first screen plate 202 form a W-shaped structure. When the structure is folded, the cable material above the movable plate 201 and the first screen plate 202 is squeezed and rolls. The cable material above the screen holes rolls, which can prevent the screen holes from being blocked. At the same time, the movable plate 201 can drive the crushing block 212 to move. When the clump of cable material collides with the crushing block 212, the crushing block 212 can crush it to improve the screening effect. Meanwhile, large particles of cable material collide with the crushing block 212 multiple times during the movement of following the movable plate 201 and the first screen plate 202. The crushing block 212 can crush the large particles of cable material to improve the utilization effect of the cable material.

[0062] During the movement of the cable material inside the housing assembly 1, the fan 404 delivers outside air through the perforated plate 401 into the housing 101. When the air passes through the cooling pipe 403, the air exchanges heat with the cooling pipe 403. The cooled air then enters the housing 101. At this time, the cable material particles exchange heat with the cold air, thus achieving the cooling treatment of the cable material. Since the cable material needs to pass through the first screen plate 202 and the second screen plate 203 inside the device, the cold air has sufficient time to exchange heat with the cable material, thereby effectively ensuring the cooling effect of the cable material.

[0063] As the device continues to operate, the amount of cable material stuck on the surface of the movable plate 201 and inside the first screen plate 202 and the second screen plate 203 increases continuously. The pressure value on the movable plate 201 continues to increase. When the movable plate 201 rotates to its maximum extent in the opposite direction and does not come into contact with the protrusion 309, the minimum pressure value applied by the movable plate 201 to the mounting base 304 continues to increase. The minimum pressure value detected by the pressure sensor increases and exceeds the preset pressure value. If the swing range and swing pattern of the movable plate 201 continue to be repeated, the stuck cable material cannot be effectively discharged, thus reducing the screening efficiency of the cable material and the overall production efficiency of the device.

[0064] At this time, the controller controls the speed of the power motor 305 to increase. The power motor 305 drives the rotation speed of the rotating rod 301 to increase through the synchronous pulley 306 and the synchronous belt 307. The rotating rod 301 drives the speed of the movable block 302 to increase. In order to ensure that the vibration screening degree of the movable plate 201 is increased, the controller controls the output end of the electric push rod 308 to extend. The electric push rod 308 drives the end protrusion 309 to move away from the movable block 302. The distance value detected by the distance sensor increases. The movable block 302 not only drives the speed of the protrusion 309 to increase, but also increases the pressing distance between the protrusion 309 and the transmission rod 303 and the mounting base 304. As a result, the mounting base 304 drives the swing frequency and swing distance of the movable plate 201 to increase.

[0065] When the distance value detected by the distance sensor increases, the controller controls the electromagnetic positioning seat 105 to increase the energizing current, the electromagnetic positioning seat 105 to increase the magnetic attraction force applied to the permanent magnet movable seat 206, the permanent magnet movable seat 206 to squeeze the reset spring and move a greater distance closer to the electromagnetic positioning seat 105. Therefore, the magnetic attraction force of the electromagnetic positioning seat 105 and the squeezing force of the protrusion 309 on the transmission rod 303 drive the movable plate 201 to move a greater distance towards the center. As a result, the distance the two movable plates 201 move towards each other increases, the tilt angle of the first screen plate 202 driven by the movable plate 201 increases, the height of the slide 207 moving upward increases, and the degree of folding of the W-shaped structure formed by the movable plate 201 and the first screen plate 202 increases, thereby effectively enhancing the vibration screening effect on the cable material clamped inside the first screen plate 202 and the second screen plate 203.

[0066] The greater the distance the movable plate 201 moves towards the central axis, the more the volume of the screening space formed by the bottom plate 102, the two movable plates 201, the two first screen plates 202, and the outer shell 101 is compressed. The air pressure inside the screening space increases synchronously. Under the action of this air pressure, the air pressure impact force applied to the cable material stuck inside the first screen plate 202 and the second screen plate 203 increases, thereby effectively clearing the blockage of the cable material stuck inside the first screen plate 202 and the second screen plate 203 by impact, ensuring the screening efficiency and screening effect of the device on the cable material.

[0067] As the movable plate 201 moves further toward the central axis, the contact position between the movable plate 201 and the perforated plate 401 changes continuously. As the fan 404 rotates to blow air into the outer casing 101, the contact time and range with the movable plate 201 gradually increase. With the combined action of the fan 404 and the cooling pipe 403, not only can the cable material be cooled, but the cable material stuck inside the first screen plate 202 and the second screen plate 203 can also be cleared by airflow, thereby effectively improving the screening efficiency and screening effect.

[0068] As the movable plate 201 moves, the distance between the two movable plates 201 continuously decreases. The cable material located at the top of the bottom plate 102 continuously gathers and increases in height under the squeezing action of the movable plate 201. As a result, the collision height and collision area between the cable material and the crushing block 212 continuously increase, further improving the crushing efficiency of the cable material and ensuring its quality. At the same time, as the height of the cable material at the top of the bottom plate 102 increases, the screening height of the cable material increases, and the contact screening area between the cable material and the second screen plate 203 increases, thereby improving the screening efficiency of the second screen plate 203 on the cable material. Correspondingly, this improves the discharge efficiency along the discharge pipe 107, ensuring the discharge efficiency of the device.

[0069] When the protrusion 309 on the surface of the movable block 302 and the transmission rod 303 reach the maximum degree of compression and continue to rotate to the minimum degree, the movable plate 201 rotates in the opposite direction and moves away from the central axis of the device. The volume of the screening space formed by the bottom plate 102, the movable plate 201, the first screen plate 202 and the outer shell 101 increases and the pressure decreases. Under the action of atmospheric pressure, the cable material outside the screening space is lifted to enter the screening space along the first screen plate 202, thereby improving the feeding efficiency. It can also perform air pressure clearing of the first screen plate 202 and the second screen plate 203.

[0070] The high-frequency vibration of the movable plate 201 can drive the first screen plate 202 to vibrate synchronously at high frequency, thereby achieving vibration screening of the cable material stuck inside the first screen plate 202 and the second screen plate 203. This improves screening efficiency and screening quality. The higher the minimum pressure value detected by the pressure sensor, the more cable material is stuck on the surface of the movable plate 201 and inside the first screen plate 202 and the second screen plate 203. This results in a higher speed of the controller-controlled power motor 305, a higher current in the electromagnetic positioning seat 105, and a higher vibration frequency and amplitude of the movable plate 201. This effectively achieves the adaptability of vibration screening of the cable material stuck on the surface of the movable plate 201 and inside the first screen plate 202 and the second screen plate 203, improving the unblocking effect and ensuring screening efficiency.

[0071] Correspondingly, when the protrusion 309 drives the transmission rod 303 to rotate, the minimum squeezing force between the protrusion 309 and the transmission rod 303 decreases. When the minimum pressure value detected by the pressure sensor decreases, the controller controls the output end of the electric push rod 308 to retract. The electric push rod 308 drives the protrusion 309 at its end to move closer to the movable block 302. When the distance value detected by the distance sensor decreases, the controller controls the current of the electromagnetic positioning seat 105 to decrease. The magnetic attraction force applied by the electromagnetic positioning seat 105 to the permanent magnet movable seat 206 decreases. Under the elastic force of the return spring, the permanent magnet movable seat 206 moves in the opposite direction. At the same time, the squeezing degree between the protrusion 309 and the transmission rod 303 decreases, thereby reducing the amplitude and distance of the swing of the movable plate 201 inside the outer shell 101. Correspondingly, the vibration screening frequency of the cable material decreases, thus meeting the adaptability to different cable materials and different blockage conditions of the first screen plate 202 and the second screen plate 203, effectively improving the adaptability and stability of the device.

[0072] After the cable material particles are screened or a certain amount of large cable material particles have accumulated inside the device, no new material is added to the feeding hopper 106. At the same time, the controller controls the electromagnetic positioning seat 105 to reach its maximum energizing current. The electromagnetic positioning seat 105, through the magnetic attraction with the permanent magnet movable seat 206, drives the bottom of the movable plate 201 to move towards the central axis of the device to its maximum value. Then, the controller controls the electromagnetic positioning seat 105 to be de-energized. Under the elastic force of the return spring, the movable plate 201 moves in the opposite direction to its maximum distance. The bottom of the movable plate 201 scrapes off the cable material attached to the top of the bottom plate 102, effectively improving the cleanliness of the device. During the movement of the movable plate 201, the vibration screening efficiency of the cable material inside the first screen plate 202 and the second screen plate 203 is also improved, avoiding the internal jamming of cable material and affecting subsequent screening. After cleaning is completed, the perforated plate 401 can be removed by unscrewing the bolts on it. At this time, the large cable material particles inside the device can be cleaned.

[0073] Of particular note is that this device adjusts the rotational speed of the power motor 305 according to the change in the minimum pressure value detected by the pressure sensor, adjusts the extension distance of the output shaft of the electric push rod 308 according to the rotational speed of the power motor 305, and adjusts the energizing current of the electromagnetic positioning seat 105 according to the distance sensor. This, in turn, adjusts the vibration speed and amplitude of the movable plate 201 accordingly. This not only effectively improves the vibration screening efficiency of the cable material inside the first screen plate 202 and the second screen plate 203, but also, in conjunction with the outer shell 101 and the bottom plate 102, achieves changes in the air pressure inside the screening space. This pressure change is then used to achieve the vibration screening of the first screen plate 201. The air pressure clears the blockage of the cable material stuck inside the first screen plate 202 and the second screen plate 203. When the vibration amplitude of the movable plate 201 changes, it is affected by the wind force of the fan 404, which changes the amplitude and time. This further improves the clearing efficiency of the cable material stuck inside the first screen plate 202 and the second screen plate 203. As the swing amplitude of the movable plate 201 changes, the accumulation height of the cable material on the top of the bottom plate 102 changes synchronously, which improves the crushing degree of the cable material by the crushing block 212 and the screening area of ​​the second screen plate 203. At the same time, after screening is completed, the swing of the movable plate 201 can also scrape off the cable material remaining at the bottom of the bottom plate 102, improving the cleaning performance of the device.

[0074] This device has high efficiency and good cleaning effect for the first screen plate 202 and the second screen plate 203. At the same time, it can adaptively adjust the swing amplitude and swing frequency of the movable plate 201 according to the blockage of the cable material inside the device. It has strong adaptability and high stability. It can improve screening efficiency in conjunction with other structures. It also has a high degree of cleanliness inside the device, strong structural versatility, simple operation, energy saving and emission reduction, and is green and environmentally friendly.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for producing cable material for mineral-insulated fire-resistant cables, characterized in that, Includes housing assembly, screening assembly, power assembly, and cooling assembly; The outer casing assembly includes an outer casing body, the bottom of the inner sidewall of the outer casing body is provided with an arc-shaped base plate, the bottom of the base plate is provided with two fixing rods, and the outer side of the fixing rods is provided with multiple electromagnetic positioning seats; The screening assembly includes two symmetrically arranged movable plates, two symmetrically distributed first screen plates between the two movable plates, a second screen plate at the bottom of one side of each movable plate, two connecting plates at the bottom of each movable plate, a positioning rod between the two connecting plates, and multiple permanent magnet movable seats corresponding to electromagnetic positioning seats on the outside of the positioning rod. The power assembly includes two symmetrically arranged rotating rods. Multiple movable blocks are provided on the outer side of the rotating rods. A transmission rod is provided on one side of the rotating rods. Mounting seats are provided at both ends of the transmission rods. The mounting seats are engaged with the outer side wall of the movable plate through pressure sensors. The cooling assembly includes two symmetrically arranged perforated plates; a return spring is provided between the permanent magnet movable seat and the electromagnetic positioning seat; multiple electric push rods are arranged around the outer wall of the movable block, the output end of the electric push rod is provided with a protrusion, multiple sets of distance sensors are provided on the outer wall of the movable block, the distance sensors are used to detect the distance between the movable block and the protrusion, and the outer surface of the multiple sets of protrusions is provided with an elastic membrane; Multiple circular grooves are opened through the middle of the movable plate and the second screen plate. A mounting bolt is installed through the inside of the circular groove. One end of the mounting bolt is provided with a conical crushing block, and the other end of the mounting bolt is provided with a locking nut. The locking nut is located at the end of the circular groove away from the crushing block. Both sides of the outer shell are designed with an inclined structure. When the distance value detected by the distance sensor increases, the controller increases the energizing current of the electromagnetic positioning seat, which in turn increases the magnetic attraction force exerted by the electromagnetic positioning seat on the permanent magnet movable seat. The permanent magnet movable seat then compresses the return spring and moves a greater distance closer to the electromagnetic positioning seat. When the minimum pressure value detected by the pressure sensor decreases, the controller controls the output end of the electric push rod to retract. The electric push rod drives the protrusion at its end to move closer to the movable block. When the distance value detected by the distance sensor decreases, the controller correspondingly controls the energizing current of the electromagnetic positioning seat to decrease, which in turn decreases the magnetic attraction force exerted by the electromagnetic positioning seat on the permanent magnet movable seat. Under the elastic force of the return spring, the permanent magnet movable seat moves in the opposite direction, and at the same time, the degree of compression between the protrusion and the transmission rod decreases.

2. The cable material production apparatus for mineral-insulated fireproof cables according to claim 1, characterized in that: The screening component and the power component are both located inside the outer shell component. The cooling component is located in the middle of the outer side of the outer shell component. A controller is provided on one side of the outer wall of the outer shell. The controller electrically controls each electrical component. A strip-shaped through groove is provided at each of the four corners of the upper surface of the base plate. Both ends of the two fixing rods are located on the inner wall of the outer shell.

3. The cable material production apparatus for mineral-insulated fireproof cables according to claim 1, characterized in that: The top center of the outer shell is provided with a funnel-shaped feeding hopper, the bottom of both sides of the outer shell is provided with a discharge pipe, the bottom of the outer shell is provided with a foot, the middle of both sides of the outer shell is provided with a ventilation slot, the opening of the ventilation slot is provided with a mounting slot, and the perforated plate is fixed inside the mounting slot by bolts.

4. The cable material production apparatus for mineral-insulated fireproof cables according to claim 2, characterized in that: Both movable plates are disposed inside the outer casing. The bottom of each movable plate is configured as an arc-shaped structure that matches the bottom plate. Both first screen plates are configured as inclined structures. The second screen plate is disposed at the bottom of the first screen plate. The connecting plate is disposed through the inside of the through groove. The bottom of the connecting plate is movably disposed on the inner wall of the outer casing via a pin.

5. The cable material production apparatus for mineral-insulated fire-resistant cables according to claim 1, characterized in that: A slide is provided between the two first screen plates. The slide is movably connected to the first screen plate by a pin. A guide groove is provided at the middle of both ends of the slide. A guide block is provided through the inside of the guide groove. The guide block is fixedly set on the inner wall of the outer shell.

6. The cable material production apparatus for mineral-insulated fire-resistant cables according to claim 1, characterized in that: A connecting frame is provided in the middle of one side of the movable plate. Both ends of the connecting frame are movably connected to the first screen plate through pins. A sealing strip is provided in the middle of the outer side wall of the connecting frame. The sealing strip is in contact with one end of the first screen plate. Wear-resistant sealing blocks are provided in the middle of both ends of the first screen plate. The wear-resistant sealing blocks are fixedly installed on the inner side wall of the outer shell.

7. The cable material production apparatus for mineral-insulated fire-resistant cables according to claim 1, characterized in that: The two rotating rods are respectively located at the outer top of the two movable plates. Both ends of the rotating rods are movably mounted on the inner wall of the outer shell through bearings. A power motor is provided at the top of the outer wall of the outer shell. The output shaft of the power motor and one end of the rotating rod are provided with a synchronous pulley. A synchronous belt is provided between the three synchronous pulleys.

8. The cable material production apparatus for mineral-insulated fire-resistant cables according to claim 1, characterized in that: Two perforated plates are respectively disposed on the middle of the two sides of the outer casing. An air guide shroud is provided on the outer side of one of the perforated plates. A serpentine cooling pipe is provided between the air guide shroud and the perforated plate. A fan is provided in the middle of the outer wall of the air guide shroud.

Images