Preparation device and process of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material

Abstract

The present invention discloses a preparation device and process for cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, and aims to provide a preparation device and process for cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material equipped with a structure for impacting solid materials during stirring. It includes a preparation cylinder having a storage port for installing a wire mesh at the top, a motor shaft installed on a servo motor connected to a connecting pipe, a rotating tube connected to the connecting pipe having a plurality of stirring nets 2 symmetrically distributed, a rotating shaft installed in the rotating tube having a plurality of stirring nets 1 symmetrically distributed, and a touch switch 1 and a touch switch 2 respectively installed at the front and rear ends of the stirring net 1, and the touch switch 1 and the touch switch 2 are electrically connected to the servo motor through a single-chip microcomputer. The beneficial effects of the present invention are: the purpose of installing a structure for impacting solid materials during stirring can be achieved; it is convenient for solid materials to be impacted repeatedly; and it has the effect of blowing solid materials and liquid materials in the fusion work.

Description

Technical Field

[0001] The invention relates to the technical field of cable materials, in particular to a preparation device and process for cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable materials. Background Art

[0002] Cables are usually made of several or several groups of wires, each group of at least two wires twisted together to form a rope-like cable. Each group of wires is insulated from each other and often twisted around a center, with a highly insulating covering on the outside. Cables have the characteristics of being powered inside and insulated outside.

[0003] In modern society, all kinds of equipment used in industry or life require a lot of electric current, especially the use of electronic equipment. Without the supply of electric current, the equipment will lose its working effect.

[0004] Cables are made of cable materials, which include tens of thousands of materials. Polyolefins usually refer to polymers of ethylene, propylene or higher olefins. Due to the abundance of raw materials, low prices, easy processing and molding, and excellent comprehensive performance, it is a type of polymer material with the largest output and wide application. As a cable material, it has the characteristics of low relative density, good chemical resistance and water resistance, good mechanical strength and electrical insulation. Therefore, the preparation of polyolefin cable materials has been widely welcomed. In the preparation process of cable materials, the materials required for the preparation of cable materials need to be fused with each other under stirring, and the fusion effect will directly affect the preparation effect of cable materials.

[0005] China Patent Authorization Announcement No.: CN214163610U, authorization announcement date September 10, 2021, discloses a stirring and mixing device for highly flame-retardant PVC cable materials, including a barrel body with a feed pipe and a discharge pipe, the barrel body is provided with a first stirring mechanism and a plurality of circumferentially arranged second stirring mechanisms, the first stirring mechanism includes a rotating frame rotatably connected to the inner wall of the barrel body, an inner gear ring provided on the rotating frame, and a driving assembly for driving the rotating frame to rotate; the second stirring mechanism includes a first stirring rod rotatably connected to the inner wall of the barrel body, and the first stirring rod is fixed with a first gear meshed with the inner gear ring. The shortcoming of this technical solution is that the third stirring rod can be driven to rotate by the rotation of the rotating rod, and the third stirring blade is used to stir the base material and ingredients mixed in the barrel body, but during the stirring process, the base material and the ingredients are just flowing and merging, and the fusion effect is not perfect.

[0006] In summary, a structure may be installed to impact the solid material during stirring, so that the solid material can be crushed by the impact and then more completely integrated with the liquid material. Summary of the invention

[0007] The present invention aims to overcome the deficiency in the prior art that the base material and the ingredients are only fused under a stirring flow environment, and provides a preparation device and process for a cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material equipped with a structure for impacting solid materials during stirring.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A preparation device for cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, comprising a preparation cylinder, a storage port is provided at the top of the preparation cylinder, a steel wire mesh is installed at the storage port, the steel wire mesh is detachably connected to the preparation cylinder, a switch 1, a single-chip microcomputer and a servo motor are installed on the preparation cylinder, the servo motor is placed at the bottom of the preparation cylinder, the servo motor is electrically connected to the switch 1, a servo motor shaft is installed on the servo motor, a connecting pipe is installed on the servo motor shaft, a rotating pipe is installed on the connecting pipe, the connecting pipe is connected to the servo motor through the servo motor shaft, the bottom end of the rotating pipe is connected to the connecting pipe, and the top of the rotating pipe is movable with the steel wire mesh The rotating tube is connected, a plurality of stirring nets 2 are symmetrically distributed on the rotating tube, a rotating shaft is installed in the rotating tube, the top end of the rotating shaft is detachably connected to the wire mesh, the bottom end of the rotating shaft is in contact with the connecting tube, the distance between the top end of the rotating shaft and the bottom end of the preparation tube is greater than the distance between the top end of the rotating tube and the bottom end of the preparation tube, a plurality of stirring nets 1 are symmetrically distributed on the rotating shaft, the stirring net 1 is placed between two stirring nets 2, a touch switch 1 and a touch switch 2 are installed on the stirring net 1, the touch switch 1 and the touch switch 2 are respectively placed at the front and rear ends of the stirring net 1, and the touch switch 1 and the touch switch 2 are both electrically connected to the servo motor through a single-chip microcomputer.

[0010] Materials required for the preparation of polyolefin cable materials, including solid materials and liquid materials, can be placed through the placement port at the top of the preparation cylinder to allow the placed materials to fuse in the preparation cylinder. During fusion, switch 1 can be controlled to start the servo motor. The servo motor is placed at the bottom of the preparation cylinder. The motor shaft on the servo motor starts to rotate under the operation of the servo motor, and the rotating tube connected to the motor shaft through the connecting tube is also driven to rotate. Several stirring nets 2 are symmetrically distributed on the rotating tube here, and a rotating shaft is installed in the rotating tube, and several stirring nets 1 are symmetrically distributed on the rotating shaft. The stirring net 2 is affected by the rotation of the rotating tube and rotates in the preparation cylinder, which not only has a stirring effect on the solid material and the liquid material, but also touches the stirring net 1. In this way, the solid material driven by the rotation of the stirring net 2 is placed between the stirring net 1 and the stirring net 2, and is crushed when the stirring net 1 and the stirring net 2 collide, thereby achieving the purpose of installing a structure for colliding with the solid material during stirring. Here, touch switch 1 and touch switch 2 are respectively installed at the front and rear ends of the stirring net 1. When the stirring net 1 and the stirring net 2 collide, they can hit touch switch 1 or touch switch 2. Touch switch 1 and touch switch 2 can promptly transmit the collision information to the single-chip microcomputer, and then transmit the information to the servo motor after processing by the single-chip microcomputer, so that the servo motor rotates in the opposite direction, and repeatedly impacts the solid material, so that the fusion work of the solid material and the liquid material is more perfect.

[0011] Preferably, a rolling bearing is installed on the wire mesh, and the rolling bearing includes an inner ring and an outer ring, and the outer ring is connected to the wire mesh. A gap is left between the top of the preparation tube and the stirring net 1, and a limiting ring is installed on the outer ring. The limiting ring is placed in the gap, and the rotating tube is movably connected to the limiting ring, and the rotating shaft is detachably connected to the inner ring. This design allows the rolling bearing to be connected to the wire mesh through the outer ring, and the gap between the top of the preparation tube and the stirring net 1 is the space for installing the limiting ring. The limiting ring is installed on the outer ring, and the rotating tube is movably connected to the limiting ring. In this way, the top of the rotating tube is also affected by the limiting effect of the limiting ring, so as to avoid the rotating tube from shaking randomly when rotating, which affects the preparation of the cable material of the preparation tube. In addition, the rotating shaft in the rotating tube is also detachably connected to the inner ring, and the rotating shaft rotates under the support effect of the rolling bearing, which is stable and reliable.

[0012] Preferably, a plurality of rollers are installed in the limiting ring, the plurality of rollers are symmetrically distributed, the rollers are movably connected to the limiting ring, and the rotating tube is connected to the limiting ring through the rollers. This design allows the rotating tube to contact the rollers when passing through the limiting ring through the plurality of rollers symmetrically distributed in the limiting ring, which not only prevents the rotating tube from escaping from the limiting effect of the limiting ring when rotating, but also allows the rotating tube to rotate smoothly when supported by the limiting ring. The two effects do not interfere with each other, which is simple and practical.

[0013] Preferably, a limiting groove is provided on the inner wall of the preparation barrel, one end of the stirring net 1 is connected to the rotating shaft, one end of the stirring net 2 is connected to the rotating tube, and the other end of the stirring net 1 and the other end of the stirring net 2 are both placed in the limiting groove. This design allows the end of the stirring net 1 and the end of the stirring net 2 to rotate under the limiting effect through the limiting groove on the inner wall of the preparation barrel, so as to prevent the stirring net 1 and the stirring net 2 from separating from the inner wall of the preparation barrel.

[0014] Preferably, a connecting strip 1 is installed at the upper end, the lower end and the right end of the stirring net 1, the distance between the left end of the stirring net 1 and the rotating tube is greater than the distance between the right end of the stirring net 1 and the rotating tube, the stirring net 1 is connected to the rotating shaft through the connecting strip 1, a connecting strip 2 is installed on the left end of the stirring net 1, the connecting strip 2 is connected to the connecting strip 1, and the touch switch 1 and the touch switch 2 are both connected to the connecting strip 2. This design allows the stirring net 1 to be stably connected to the rotating shaft through the connecting strips 1 installed on the upper end, lower end and right end of the stirring net 1, so that the stirring net 1 can be supported by the rotating shaft when rotating, and the distance between the left end of the stirring net 1 and the rotating tube is greater than the distance between the right end of the stirring net 1 and the rotating tube, which means that the left end of the stirring net 1 is placed at the outer end, and the connecting strip 2 is installed on the left end of the stirring net 1, and the touch switch 1 and the touch switch 2 are both connected to the connecting strip 2, so that when the stirring net 1 is hit, the touch switch 1 and the touch switch 2 are touched by the stirring net 2, so that the stirring net 2 is turned on to rotate in the opposite direction, and the solid material is repeatedly hit.

[0015] Preferably, the upper end, lower end, left end and right end of the stirring net 2 are all equipped with connecting strips 3, and the stirring net 2 is connected to the rotating tube through the connecting strips 3. In this design, the connecting strips 3 installed at the upper end, lower end, left end and right end of the stirring net 2 can stably connect the stirring net 2 with the rotating tube, so that the stirring net 2 rotates under the support effect of the rotating tube.

[0016] Preferably, an air pump is installed on the outer wall of the preparation tube, and a switch 2 and a vent pipe are installed on the air pump, the switch 2 is electrically connected to the air pump, and the vent pipe is connected to the preparation tube. In this design, the air pump can be turned on by switch 2, and the gas generated by the air pump is discharged through the vent pipe, and the vent pipe is connected to the preparation tube. The discharged gas can be passed into the preparation tube, which has a blowing effect on the solid material and liquid material in the preparation tube, allowing the solid material to smoothly carry out the repeated impact work, and the fusion of the solid material and the liquid material is more perfect.

[0017] Preferably, one end of the vent pipe is connected to an air pump, and a plurality of vent holes are provided on the vent pipe, and the plurality of vent holes are evenly distributed at the bottom end of the preparation tube, and the vent pipe is connected to the preparation tube through the vent holes. The vent pipe connected to the air pump in this way can place the gas generated by the air pump in the vent pipe, and the plurality of vent holes on the vent pipe are the locations for gas discharge, and the plurality of vent holes are evenly distributed at the bottom end of the preparation tube, so that the discharged gas is discharged from the bottom end of the preparation tube into the preparation tube, which has the effect of blowing upwards on the solid material and liquid material in the preparation tube, which not only allows the solid material to be impacted repeatedly, but also makes the fusion effect of the solid material and the liquid material more perfect.

[0018] Preferably, the distance between the connection between the air pump and the vent pipe and the bottom end of the preparation tube is greater than the distance between the gap and the bottom end of the preparation tube. This design can prevent the liquid material poured into the preparation tube from flowing into the air pump, making it impossible for the air pump to blow the solid material and the liquid material.

[0019] The present invention also provides a method for preparing a cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, which specifically comprises the following steps:

[0020] Step 1: Turn on the servo motor and let the servo motor shaft on the servo motor drive the connecting tube to rotate. Then place the solid materials and liquid materials required for the preparation of polyolefin cable materials from the storage port. The rotating tube connected to the connecting tube rotates with the stirring net 2, and it will touch the stirring net 1 during the rotation process. This not only has a stirring effect on the liquid material, but also allows the solid material to be smashed when the stirring nets 1 and 2 collide, so that the smashed solid material can be more fully integrated with the liquid material;

[0021] Step 2: When the stirring net 1 collides with the stirring net 2, the switch 1 and the touch switch 2 on the stirring net 1 can be intermittently collided, and the collision information is transmitted to the single-chip microcomputer. After being processed by the single-chip microcomputer, the servo motor shaft on the servo motor can rotate in the opposite direction, so that the collision work of the solid material can be repeated;

[0022] Step 3: When the impact work of stirring net 1 and stirring net 2 is in progress, start the air pump, and the gas ejected by the air pump is discharged through the ventilation pipe. The ventilation hole on the ventilation pipe is placed at the bottom of the preparation cylinder. The solid material and liquid material in the preparation cylinder are blown upward, and the impact effect is more comprehensive.

[0023] The beneficial effects of the present invention are: it can achieve the purpose of installing a structure for impacting solid materials during stirring; it can install a structure that allows the second stirring net to automatically turn; it is convenient for solid materials to be impacted repeatedly; it has the effect of blowing and fusing solid materials and liquid materials in the work of blowing and fusing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the preparation tube of the present invention;

[0026] Figure 3 is a connection schematic diagram of the rotating tube of the present invention;

[0027] Figure 4 is a connection schematic diagram of the connecting pipe of the present invention;

[0028] Figure 5 yes Figure 2 A schematic diagram of the structure of the cross section at AA;

[0029] Figure 6 It is a schematic structural diagram of the limiting ring of the present invention.

[0030] In the figure: 1. preparation cylinder, 2. storage port, 3. wire mesh, 4. rotating tube, 5. rotating shaft, 6. stirring net one, 7. stirring net two, 8. connecting strip one, 9. connecting strip two, 10. connecting strip three, 11. touch switch one, 12. touch switch two, 13. servo motor, 14. motor shaft, 15. connecting tube, 16. switch one, 17. single chip microcomputer, 18. limit groove, 19. rolling bearing, 20. gap, 21. limit ring, 22. roller, 23. air pump, 24. switch two, 25. ventilation pipe, 26. ventilation hole. DETAILED DESCRIPTION

[0031] The invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4In the illustrated implementation case, a device for preparing cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material comprises a preparation cylinder 1, a storage port 2 is provided at the top of the preparation cylinder 1, a steel wire mesh 3 is installed at the storage port 2, the steel wire mesh 3 is detachably connected to the preparation cylinder 1, a switch 16, a single-chip microcomputer 17 and a servo motor 13 are installed on the preparation cylinder 1, the servo motor 13 is placed at the bottom of the preparation cylinder 1, the servo motor 13 is electrically connected to the switch 16, a motor shaft 14 is installed on the servo motor 13, a connecting tube 15 is installed on the motor shaft 14, a rotating tube 4 is installed on the connecting tube 15, the connecting tube 15 is connected to the servo motor 13 through the motor shaft 14, the bottom end of the rotating tube 4 is connected to the connecting tube 15, and the top of the rotating tube 4 is connected to the connecting tube 15. The wire mesh 3 is movably connected, and a plurality of stirring nets 2 7 are symmetrically distributed on the rotating tube 4. A rotating shaft 5 is installed in the rotating tube 4. The top end of the rotating shaft 5 is detachably connected to the wire mesh 3, and the bottom end of the rotating shaft 5 is in contact with the connecting tube 15. The distance between the top end of the rotating shaft 5 and the bottom end of the preparation tube 1 is greater than the distance between the top end of the rotating tube 4 and the bottom end of the preparation tube 1. A plurality of stirring nets 1 6 are symmetrically distributed on the rotating shaft 5. The stirring net 1 6 is placed between two stirring nets 2 7. A touch switch 1 11 and a touch switch 2 12 are installed on the stirring net 1 6. The touch switch 1 11 and the touch switch 2 12 are respectively placed at the front and rear ends of the stirring net 1 6. The touch switch 1 11 and the touch switch 2 12 are electrically connected to the servo motor 13 through the single-chip microcomputer 17.

[0033] like Figure 2 , Figure 5 and Figure 6 As shown, a rolling bearing 19 is installed on the steel mesh 3, and the rolling bearing 19 includes an inner ring and an outer ring, and the outer ring is connected to the steel mesh 3. A gap 20 is left between the top of the preparation cylinder 1 and the stirring net 6. A limiting ring 21 is installed on the outer ring, and the limiting ring 21 is placed in the gap 20. The rotating tube 4 is movably connected to the limiting ring 21, and the rotating shaft 5 is detachably connected to the inner ring. A plurality of rollers 22 are installed in the limiting ring 21, and the plurality of rollers 22 are symmetrically distributed. The rollers 22 are movably connected to the limiting ring 21, and the rotating tube 4 is connected to the limiting ring 21 through the rollers 22.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, a limiting groove 18 is provided on the inner wall of the preparation cylinder 1, one end of the stirring net 1 6 is connected to the rotating shaft 5, one end of the stirring net 2 7 is connected to the rotating tube 4, and the other end of the stirring net 1 6 and the other end of the stirring net 2 7 are both placed in the limiting groove 18. The upper end, lower end and right end of the stirring net 1 6 are all installed with a connecting bar 1 8, the distance between the left end of the stirring net 1 6 and the rotating tube 4 is greater than the distance between the right end of the stirring net 1 6 and the rotating tube 4, the stirring net 1 6 is connected to the rotating shaft 5 through the connecting bar 1 8, the left end of the stirring net 1 6 is installed with a connecting bar 2 9, the connecting bar 2 9 is connected to the connecting bar 1 8, and the touch switch 1 11 and the touch switch 2 12 are both connected to the connecting bar 2 9. The upper end, lower end, left end and right end of the stirring net 2 7 are all installed with a connecting bar 3 10, and the stirring net 2 7 is connected to the rotating tube 4 through the connecting bar 3 10. An air pump 23 is installed on the outer wall of the preparation tube 1, and a switch 24 and a vent pipe 25 are installed on the air pump 23. The switch 24 is electrically connected to the air pump 23, and the vent pipe 25 is connected to the preparation tube 1. One end of the vent pipe 25 is connected to the air pump 23, and a plurality of vent holes 26 are arranged on the vent pipe 25. The plurality of vent holes 26 are evenly distributed at the bottom end of the preparation tube 1, and the vent pipe 25 is connected to the preparation tube 1 through the vent holes 26. The distance between the connection between the air pump 23 and the vent pipe 25 and the bottom end of the preparation tube 1 is greater than the distance between the gap 20 and the bottom end of the preparation tube 1.

[0035] The present invention also provides a method for preparing a cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, which specifically comprises the following steps:

[0036] Step 1: Turn on the servo motor 13, and let the motor shaft 14 on the servo motor 13 drive the connecting tube 15 to rotate. Then, solid materials and liquid materials required for the preparation of polyolefin cable materials are placed from the placement port 2. The rotating tube 4 connected to the connecting tube 15 rotates with the stirring net 2 7, and will touch the stirring net 1 6 during the rotation process. This not only has a stirring effect on the liquid material, but also allows the solid material to be crushed when the stirring net 1 6 and the stirring net 2 7 collide, so that the crushed solid material can be more fully integrated with the liquid material;

[0037] Specifically: first, the solid materials and liquid materials required for the preparation of polyolefin cable materials are placed into the preparation tube 1 from the storage port 2 at the top of the preparation tube 1, and the solid materials and liquid materials will be placed in the preparation tube 1, and the bottom end of the preparation tube 1 is connected to the vent pipe 25, and the vent pipe 25 is provided with a plurality of vent holes 26. In order to prevent the liquid material from flowing to the air pump 23 through the vent holes 26 when being poured in, thereby affecting the air pump 23 and inconvenience the preparation of polyolefin cable materials, the distance between the connection between the air pump 23 and the vent pipe 25 and the bottom end of the preparation tube 1 must be greater than the distance between the gap 20 and the bottom end of the preparation tube 1. The gap 20 here is placed between the top of the preparation tube 1 and the stirring net 6. If the liquid material is not filled up at the gap 20, it cannot flow to the position of touching the air pump 23. Then click the switch 16 on the preparation tube 1 to start the servo motor 13 electrically connected to the switch 16. The servo motor 13 is placed at the bottom of the preparation tube 1, and the motor shaft 14 connected to the servo motor 13 will rotate. The rotating tube 4 is connected to the motor shaft 14 through the connecting tube 15, and the rotating tube 4 will also be driven to rotate. In this way, the several stirring nets 27 symmetrically distributed on the rotating tube 4 will rotate in the preparation tube 1, stirring and driving the solid materials and liquid materials in the preparation tube 1, and making the solid materials and liquid materials more perfectly integrated. The top of the rotating tube 4 here is in contact with the several rollers 22 symmetrically distributed in the limit ring 21. The limit ring 21 is installed on the outer ring of the rolling bearing 19. The rolling bearing 19 is also connected to the wire mesh 3 through the outer ring, which means that the rotating tube 4 rotates smoothly under the support effect of the wire mesh 3. The rollers 22 reduce the friction between the rotating tube 4 and the limit ring 21 when the rotating tube 4 rotates. Moreover, a rotating shaft 5 is installed in the rotating tube 4, and the bottom end of the rotating shaft 5 is placed in the connecting tube 15, and a roller can also be installed so that the bottom end of the rotating shaft 5 is supported by the connecting tube 15, and the top end of the rotating shaft 5 is connected to the inner ring of the rolling bearing 19. In this way, there are support structures at both ends of the rotating shaft 5, and the top end of the rotating shaft 5 can be selectively threadedly connected to the inner ring of the rolling bearing 19 for easy disassembly and installation.

[0038] Step 2: When the stirring net 1 6 and the stirring net 2 7 collide, the switch 1 11 and the touch switch 2 12 on the stirring net 1 6 can be intermittently collided, and the collision information is transmitted to the single-chip microcomputer 17. After being processed by the single-chip microcomputer 17, the motor shaft 14 on the servo motor 13 can rotate in the opposite direction, so that the collision work of the solid material is repeated;

[0039] Specifically, when the stirring net 2 7 rotates, it will touch several stirring nets 1 6 symmetrically distributed on the rotating shaft 5. The stirring net 1 6 is placed between the two stirring nets 2 7, and the front and rear ends of the stirring net 1 6 are respectively installed with a touch switch 1 11 and a touch switch 2 12. When the stirring net 2 7 hits the stirring net 1 6, it can not only crush the solid material to achieve the purpose of installing a structure for hitting the solid material during stirring, but also touch the touch switch 1 11 or the touch switch 2 12, and transmit the touch information to the single-chip microcomputer 17. After being processed by the single-chip microcomputer 17, the information is transmitted to the servo motor 13, and the servo motor 13 allows the motor shaft 14 to rotate in the opposite direction, and repeatedly hits the solid material, making the fusion work more comprehensive.

[0040] Step 3: When the impact work of the stirring net 1 6 and the stirring net 2 7 is in progress, the air pump 23 is turned on, and the gas ejected by the air pump 23 is discharged through the ventilation pipe 25. The ventilation hole 26 on the ventilation pipe 25 is placed at the bottom of the preparation tube 1. The solid material and liquid material in the preparation tube 1 are blown upward, and the impact effect is more comprehensive.

[0041] Specifically, when the stirring nets 1 6 and 2 7 in the preparation barrel 1 rotate and collide, the solid materials and the liquid materials are stirred and collided, and the solid materials and the liquid materials will also flow toward the bottom of the preparation barrel 1. In order to prevent the solid materials and the liquid materials from flowing downward and affecting the fusion, the switch 2 24 can be clicked to let the air pump 23 start working, and the gas generated by the air pump 23 will flow into the vent pipe 25, and then be discharged through a number of vent holes 26 evenly distributed on the vent pipe 25. The vent holes 26 here are placed at the bottom of the preparation barrel 1, and the vent pipe 25 is connected to the preparation barrel 1 through the vent holes 26. Then, the gas in the vent pipe 25 will blow the solid materials and the liquid materials in the preparation barrel 1 from the bottom of the preparation barrel 1, which not only prevents the solid materials and the liquid materials from leaving the preparation barrel 1, but also allows the solid materials and the liquid materials to return to the stirring and colliding environment of the stirring nets 1 6 and 2 7, so that the preparation work is more perfect.

[0042] First, the solid materials and liquid materials required for the preparation of polyolefin cable materials are placed into the storage port 2 at the top of the preparation cylinder 1, and the solid materials and liquid materials will be placed in the preparation cylinder 1, and the bottom end of the preparation cylinder 1 is connected to the ventilation pipe 25, and the ventilation pipe 25 is provided with a plurality of ventilation holes 26. In order to prevent the liquid material from flowing to the air pump 23 through the ventilation holes 26 when being poured in, thereby affecting the air pump 23 and inconvenience the preparation of polyolefin cable materials, the distance between the connection between the air pump 23 and the ventilation pipe 25 and the bottom end of the preparation cylinder 1 must be greater than the distance between the gap 20 and the bottom end of the preparation cylinder 1. The gap 20 here is placed between the top of the preparation cylinder 1 and the stirring net 6. If the liquid material is not filled up at the gap 20, it cannot flow to the position of touching the air pump 23. Then click the switch 16 on the preparation tube 1 to start the servo motor 13 electrically connected to the switch 16. The servo motor 13 is placed at the bottom of the preparation tube 1, and the motor shaft 14 connected to the servo motor 13 will rotate. The rotating tube 4 is connected to the motor shaft 14 through the connecting tube 15, and the rotating tube 4 will also be driven to rotate. In this way, the several stirring nets 27 symmetrically distributed on the rotating tube 4 will rotate in the preparation tube 1, stirring and driving the solid materials and liquid materials in the preparation tube 1, and making the solid materials and liquid materials more perfectly integrated. The top of the rotating tube 4 here is in contact with the several rollers 22 symmetrically distributed in the limit ring 21. The limit ring 21 is installed on the outer ring of the rolling bearing 19. The rolling bearing 19 is also connected to the wire mesh 3 through the outer ring, which means that the rotating tube 4 rotates smoothly under the support effect of the wire mesh 3. The rollers 22 reduce the friction between the rotating tube 4 and the limit ring 21 when the rotating tube 4 rotates. Moreover, a rotating shaft 5 is installed in the rotating tube 4, and the bottom end of the rotating shaft 5 is placed in the connecting tube 15, and a roller can also be installed so that the bottom end of the rotating shaft 5 is supported by the connecting tube 15, and the top end of the rotating shaft 5 is connected to the inner ring of the rolling bearing 19. In this way, there are support structures at both ends of the rotating shaft 5, and the top end of the rotating shaft 5 can be selectively threadedly connected to the inner ring of the rolling bearing 19 for easy disassembly and installation.

[0043] When the stirring net 2 7 rotates, it will touch several stirring nets 1 6 symmetrically distributed on the rotating shaft 5. The stirring net 1 6 is placed between the two stirring nets 2 7 and the front and rear ends of the stirring net 1 6 are respectively installed with a touch switch 1 11 and a touch switch 2 12. When the stirring net 2 7 hits the stirring net 1 6, it can not only crush the solid material to achieve the purpose of installing a structure for hitting the solid material during stirring, but also touch the touch switch 1 11 or the touch switch 2 12, and transmit the touch information to the single-chip microcomputer 17. After being processed by the single-chip microcomputer 17, the information is transmitted to the servo motor 13. The servo motor 13 then allows the motor shaft 14 to rotate in the opposite direction, and repeatedly hits the solid material, making the fusion work more comprehensive.

[0044] When the stirring nets 1 6 and 2 7 in the preparation cylinder 1 rotate and collide, the solid materials and the liquid materials are stirred and collided, and the solid materials and the liquid materials will also flow toward the bottom of the preparation cylinder 1. In order to prevent the solid materials and the liquid materials from flowing downward and affecting the fusion, the switch 2 24 can be clicked to start the air pump 23. The gas generated by the air pump 23 will flow into the vent pipe 25, and then be discharged through a number of vent holes 26 evenly distributed on the vent pipe 25. The vent holes 26 here are placed at the bottom of the preparation cylinder 1. The vent pipe 25 is connected to the preparation cylinder 1 through the vent holes 26. Then, the gas in the vent pipe 25 will blow the solid materials and the liquid materials in the preparation cylinder 1 from the bottom of the preparation cylinder 1, which not only prevents the solid materials and the liquid materials from leaving the preparation cylinder 1, but also allows the solid materials and the liquid materials to return to the stirring and colliding environment of the stirring nets 1 6 and 2 7, so that the preparation work is more perfect.

[0045] The solid materials required for the preparation of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable materials can be polyethylene and polypropylene, and the liquid material can be butyl stearate. The cable material thus fused has the effects of cold-resistant thermoplastic low-smoke halogen-free flame-retardant. The stirring net 1 6 and the stirring net 2 7 can be made of tungsten copper. Tungsten copper is not only very hard and not easily damaged when impacted, but also has a high melting point. It can be connected to a power source externally to allow tungsten copper to generate heat, making the fusion of solid materials and liquid materials more perfect. The stirring net 1 6 here is connected to the rotating shaft 5 through the connecting bar 1 8, and the stirring net 2 7 is connected to the rotating tube 4 through the connecting bar 3 10. The stirring net 1 6 and the stirring net 2 7 perform stirring and impact work under a stable support effect. The connecting bar 1 8, the connecting bar 2 9 and the connecting bar 3 10 can all use tungsten copper to avoid damage due to impact.

Claims

1. A device for preparing cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material, characterized in that: The invention comprises a preparation cylinder (1), wherein a storage opening (2) is provided at the top of the preparation cylinder (1), a steel wire mesh (3) is installed at the storage opening (2), and the steel wire mesh (3) is detachably connected to the preparation cylinder (1); a switch (16), a single-chip microcomputer (17) and a servo motor (13) are installed on the preparation cylinder (1); the servo motor (13) is placed at the bottom of the preparation cylinder (1), the servo motor (13) is electrically connected to the switch (16), a motor shaft (14) is installed on the servo motor (13), a connecting pipe (15) is installed on the motor shaft (14), and a rotating pipe (4) is installed on the connecting pipe (15). The connecting tube (15) is connected to the servo motor (13) via the motor shaft (14); the bottom end of the rotating tube (4) is connected to the connecting tube (15); the top end of the rotating tube (4) is movably connected to the steel mesh (3); a plurality of stirring meshes (7) are symmetrically distributed on the rotating tube (4); a rotating shaft (5) is installed in the rotating tube (4); the top end of the rotating shaft (5) is detachably connected to the steel mesh (3); the bottom end of the rotating shaft (5) is in contact with the connecting tube (15); the distance between the top end of the rotating shaft (5) and the bottom end of the preparation tube (1) is greater than the distance between the top end of the rotating tube (4) and the bottom end of the preparation tube (1); A plurality of stirring nets (6) are symmetrically distributed on the moving shaft (5), the stirring net (6) being disposed between two stirring nets (7), the stirring net (6) being provided with a touch switch (11) and a touch switch (12), the touch switch (11) and the touch switch (12) being disposed at the front and rear ends of the stirring net (6) respectively, the touch switch (11) and the touch switch (12) being electrically connected to the servo motor (13) via a single-chip computer (17), the upper end, the lower end and the right end of the stirring net (6) being provided with a connecting strip (8), the distance between the left end of the stirring net (6) and the rotating tube (4) being greater than The distance between the right end of the stirring net 1 (6) and the rotating tube (4) is such that the stirring net 1 (6) is connected to the rotating shaft (5) via a connecting strip 1 (8). A connecting strip 2 (9) is installed on the left end of the stirring net 1 (6), and the connecting strip 2 (9) is connected to the connecting strip 1 (8). The touch switch 1 (11) and the touch switch 2 (12) are both connected to the connecting strip 2 (9). An air pump (23) is installed on the outer wall of the preparation cylinder (1), and a switch 2 (24) and a ventilation pipe (25) are installed on the air pump (23). The switch 2 (24) is electrically connected to the air pump (23), and the ventilation pipe (25) is connected to the preparation cylinder (1).

2. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 1, characterized in that: A rolling bearing (19) is mounted on the steel mesh (3), the rolling bearing (19) comprising an inner ring and an outer ring, the outer ring being connected to the steel mesh (3), a gap (20) being left between the top of the preparation cylinder (1) and the stirring mesh (6), a limit ring (21) being mounted on the outer ring, the limit ring (21) being placed in the gap (20), the rotating tube (4) being movably connected to the limit ring (21), and the rotating shaft (5) being detachably connected to the inner ring.

3. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 2, characterized in that: A plurality of rollers (22) are installed in the limiting ring (21), the plurality of rollers (22) are symmetrically distributed, the rollers (22) are movably connected to the limiting ring (21), and the rotating tube (4) is connected to the limiting ring (21) via the rollers (22).

4. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 1, characterized in that: A limiting groove (18) is provided on the inner wall of the preparation cylinder (1); one end of the stirring net 1 (6) is connected to the rotating shaft (5); one end of the stirring net 2 (7) is connected to the rotating tube (4); and the other ends of the stirring net 1 (6) and the other ends of the stirring net 2 (7) are both placed in the limiting groove (18).

5. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 1, characterized in that: The upper end, lower end, left end and right end of the second stirring net (7) are all installed with connection strips (10), and the second stirring net (7) is connected to the rotating tube (4) through the connection strips (10).

6. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 1, characterized in that: One end of the ventilation pipe (25) is connected to the air pump (23); a plurality of ventilation holes (26) are provided on the ventilation pipe (25); the plurality of ventilation holes (26) are evenly distributed at the bottom end of the preparation cylinder (1); and the ventilation pipe (25) is connected to the preparation cylinder (1) through the ventilation holes (26).

7. The preparation device of cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 6, characterized in that: The distance between the connection point between the air pump (23) and the ventilation pipe (25) and the bottom end of the preparation cylinder (1) is greater than the distance between the gap (20) and the bottom end of the preparation cylinder (1).

8. The method for preparing the cold-resistant thermoplastic low-smoke halogen-free flame-retardant polyolefin cable material according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that: The specific steps include: Step 1: Turn on the servo motor (13), and let the motor shaft (14) on the servo motor (13) drive the connecting tube (15) to rotate. Then, solid materials and liquid materials required for the preparation of polyolefin cable materials are placed from the placement port (2). The rotating tube (4) connected to the connecting tube (15) rotates with the stirring net 2 (7). During the rotation, the stirring net 1 (6) is touched. This not only stirs the liquid material, but also causes the solid material to be crushed when the stirring net 1 (6) and the stirring net 2 (7) collide, so that the crushed solid material is more fully integrated with the liquid material. Step 2: When the stirring net 1 (6) and the stirring net 2 (7) collide, the touch switch 1 (11) and the touch switch 2 (12) on the stirring net 1 (6) are intermittently collided, and the collision information is transmitted to the single chip computer (17). After being processed by the single chip computer (17), the motor shaft (14) on the servo motor (13) rotates in the opposite direction, so that the collision work of the solid material is repeated; Step 3: When the impact work of the stirring net 1 (6) and the stirring net 2 (7) is in progress, the air pump (23) is turned on, and the gas ejected by the air pump (23) is discharged through the ventilation pipe (25). The ventilation hole (26) on the ventilation pipe (25) is located at the bottom of the preparation cylinder (1). The solid material and the liquid material in the preparation cylinder (1) are blown upward, and the impact effect is more comprehensive.

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