Equipment and method for uniformly mixing and extruding cable extrusion molding raw materials

Abstract

The invention discloses a cable extrusion raw material uniform mixing and extruding device and method, and relates to the technical field of cable extrusion equipment, the cable extrusion raw material uniform mixing and extruding device comprises a machine base, a transmission device and a mixing and melting device, and the mixing and melting device is arranged on the upper side of the machine base and connected through the transmission device fixed to one side of the machine base; the processing mechanism is connected between the output end of the mixing and melting device and the die head, and materials output by the output end of the mixing and melting device are conveyed into the die head through the processing mechanism; the processing mechanism comprises a pipe cavity structure, a butt joint structure and a pipe head piece, a first cavity and a second cavity which are communicated are formed in the pipe cavity structure, and the butt joint structure and the pipe head piece are connected to the two ends of the pipe cavity structure respectively and communicated with the first cavity and the second cavity. According to the invention, non-stop treatment can be carried out during filtering blockage, the filtering effect is kept, and the filtering performance is automatically improved; the frequency of overhauling and replacing the filtering structure is reduced, the maintenance time is saved, and the efficiency is improved; the blockage condition of the porous treatment structure is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of cable extrusion equipment, and in particular to a cable extrusion raw material uniform mixing extrusion equipment and method. Background Art

[0002] The cable is composed of a core and an insulation layer, and the insulation layer requires a matrix material, masterbatch, filler, stabilizer, etc. The extruder heats these raw materials to a certain temperature, melts them, and mixes them. The interaction between the raw materials and the heating element causes the raw materials to form a fluid. Because a variety of raw materials need to be mixed and uniform, spirals with different pitches and spoilers are set on the screw of the extruder, so that a variety of raw materials can be mixed under continuous turbulence and extrusion conditions to obtain the required mixed raw materials. The extruder includes a base, a transmission device, a melt mixing device, and a die. A filter and a porous plate are usually set between the die and the melt mixing to keep the various indicators of the fluid stable and meet production requirements. However, in existing production equipment, it is usually fixed between the die and the melt mixing device, so the following problems often need to be dealt with: Under constant feeding conditions, the flow rate output by the die head decreases. This may be caused by the blockage of the filter or porous plate. Generally, the porous plate and filter need to be regularly inspected. The blockage of the filter is caused by the presence of granular impurities or granular materials that have not been melted and mixed. When the holes of the filter are blocked to a certain extent, the flow rate through the filter under constant feeding speed conditions will be reduced, which will affect the quality of the finished product. The blockage of the porous plate is similar to that of the filter. Therefore, when encountering such problems, the flow rate of the conveyed material can be adjusted without stopping the machine to maintain relatively stable operation. However, the probability of defective products will increase. The best solution is to stop the machine for disassembly and maintenance. There is no solution to improve or reduce the number of maintenance times during online production. Summary of the invention

[0003] The purpose of the present invention is to provide a cable extrusion raw material uniform mixing extrusion equipment and method, which solves the problem that the filter screen cannot be blocked during production line production, resulting in production shutdown for maintenance and the blockage cannot be alleviated in time.

[0004] The present invention solves the above technical problems through the following technical solutions. The present invention comprises a machine base, a transmission device and a mixing and melting device. The mixing and melting device is arranged on the upper side of the machine base and connected through a transmission device fixed on one side of the machine base; A processing mechanism and a die head, wherein the processing mechanism is connected between the output end of the mixing and melting device and the die head, and the material output from the output end of the mixing and melting device is transported to the die head through the processing mechanism; The processing mechanism includes a tubular cavity structure, a docking structure and a pipe head piece, wherein the tubular cavity structure is provided with a first cavity and a second cavity communicating with each other, the docking structure and the pipe head piece are respectively connected to the two ends of the tubular cavity structure and communicate with the first cavity and the second cavity, the docking structure is connected to a mixing and melting device, and the pipe head piece is connected to a die head; A porous processing structure is movably disposed in the first cavity; A filter mesh and a flow guide structure are movably disposed in the second cavity, the filter mesh and the flow guide structure are connected to each other, and the flow guide structure is movably disposed in the second cavity and is slidably plugged into the pipe head; The processing mechanism further comprises a starting structure, and the pipe head member slides at a fixed distance so that the starting structure causes the filter mesh member and the flow guide structure to rotate relative to each other.

[0005] Preferably, the tubular cavity structure comprises a column, in which a first cavity and a second cavity are arranged; The first cavity comprises a cavity 1 and a support ring fixed at the junction of the first cavity and the second cavity, a plurality of spiral grooves are arranged on the inner wall of the first cavity along its axial direction, and the cavity 1 is connected to the docking structure; The second cavity comprises a cavity 2 for sliding of the filter mesh component and a cylindrical cavity coaxially connected with the cavity, and the cylindrical cavity is connected to the pipe head component.

[0006] Preferably, one end of the docking structure is arranged in cavity one, and the docking structure includes an end tube arranged in cavity one and fixed to the column, and the other end of the end tube is fixed with a fixing piece connected and fixed to the output end of the mixing and melting device.

[0007] Preferably, a sinking ring is provided on the column, and a heating element for providing heating is sleeved on the sinking ring.

[0008] Preferably, the porous processing structure comprises a mixing piece, a porous piece and a docking shaft, wherein the mixing piece is fixedly connected to the porous piece, and one end of the docking shaft is fixed to the porous piece and the other end is fixedly connected to the mixing and melting device; The mixing element comprises a round tube and a spiral line, wherein the round tube is rotatably connected to the supporting ring, and a plurality of spiral lines arranged along the axial direction are arranged on the outer circumference of the round tube, wherein the spiral lines and the spiral line grooves are staggered, and a convection cavity is formed between the spiral lines and the spiral line grooves to shear the convection material; The porous member is fixed at the end of the circular tube, the porous member is bowl-shaped, and a plurality of penetration holes are processed on the inclined surface of the porous member for guiding flow.

[0009] Preferably, the filter mesh element comprises a structural ring slidably disposed in the second cavity, a filter mesh is fixed on the structural ring, a circular window is disposed in the middle of the structural ring, and the filter mesh is fixed in the circular window.

[0010] Preferably, the diversion structure includes a positioning tube, a movable insert tube and an expansion piece, the positioning tube is rotatably arranged in the cylindrical cavity, the movable insert tube is inserted in the positioning tube, the expansion piece is fixed to one end of the movable insert tube and docked with the structural ring, the expansion piece is provided with a deflection channel communicating with the movable insert tube, the opening of the deflection channel is eccentrically arranged on one side of the expansion piece, the expansion piece is provided with a spring 1, and the spring 1 abuts against the inner wall of the second cavity.

[0011] Preferably, the start-up structure comprises an adaptive structure, a protective shell, a touch member and a drive structure, the touch member is arranged on the protective shell, and the adaptive structure and the drive structure are both arranged on the column; The adaptive structure comprises a columnar cavity arranged on the column, the columnar cavity is L-shaped, a piston 1 is slidably arranged in one direction in the columnar cavity, a push rod is fixed on one side of the piston 1, one end of the push rod passes through the columnar body and is fixed to the structural ring; a piston 2 is slidably arranged in the columnar cavity in the other direction, a movable column is fixed on the piston 2, a cover is movably sleeved on the movable column and is fixed in the columnar cavity to close it, and a spring 2 is fixed between the cover and the piston 2; The protective shell is fixed on the outer periphery of the column; The touch member includes a touch switch that is arranged on the protective shell, a guide rod corresponding to the position of the movable column is fixed to the lower end of the touch switch, a spring three is arranged between the guide rod and the inner wall of the protective shell, and a top end of the touch switch is fixed; The driving structure comprises a motor fixed on a column, a coupling rod is fixed on an output shaft of the motor, and one end of the coupling rod is transmission-connected to the positioning tube via a transmission assembly.

[0012] Preferably, an alarm structure is provided on the upper side of the protective shell; The alarm structure comprises a mounting rod fixed on the protective shell, a buzzer alarm is fixed on the top of the mounting rod, and a monitoring switch coincident with the motion trajectory is fixed on the mounting rod.

[0013] A method for operating a cable extrusion raw material uniform mixing extrusion device, using any of the above cable extrusion raw material uniform mixing extrusion devices for processing, the specific steps are as follows: Step 1: Start the machine for preheating and select the appropriate heating temperature according to the product characteristics, and preheat by setting the temperature value of the mixing and melting device, the processing mechanism and the facilities of the die head; start the machine base and put the mixing and melting device into working state through the transmission action of the transmission device; Step 2: prepare base materials, auxiliary materials and other raw materials, add them quantitatively to the material input port of the mixing and melting device through an external screw conveyor, then add the raw materials into the mixing and melting device, and mix the raw materials after heating and melting in the mixing and melting device to obtain a fluid material; Step 3: Filter impurities in the fluid material. The fluid material obtained by the mixing and melting device enters the processing mechanism under the continuous conveying action of the mixing and melting device, and is pre-processed by the porous processing structure of the processing mechanism; and then the filtered fine fluid is obtained by the filtering action of the guide structure and flows into the die head; Step 4: Input the fluid into the die head for molding. The desired molding is obtained through the action of the die head. With the help of external cooling equipment and pulling equipment, the obtained molding material is stretched and deformed to wrap on the wire core. The extruded molding wrapped on the wire core is solidified by air cooling or water cooling.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The porous member is separated from the mixing and melting device and the die head to solve the problem that when the mixture processed by the mixing and melting device passes through the porous member, the porous member is set to a bowl-shaped structure, which is different from the prior art. The inclined surface, the transmission device and the mixing and melting device are used to drive the material relative to the porous member, so that the blockage is scraped against the flowing material, thereby solving the problem of some large blockages that are easy to fall off; and the inclined surface of the porous member guides this part of the fluid to be introduced into the mixing member, and the molten material is processed by the action of the spiral lines and the spiral grooves, which can interact with the molten material to improve the uniformity.

[0016] 2. The material obtained through the porous drainage part enters the area where the filter mesh is located, and the filter mesh is switched from the existing full-function area of ​​designated size to partial area utilization. When the area where the filter mesh is filtering the material is seriously clogged and affects production, the working area can be switched through detection and control, thereby better reducing the number of maintenance times. Compared with the existing regular maintenance and replacement, the frequency of maintenance and replacement is reduced.

[0017] 3. The filter mesh is blocked by logistics, causing the pressure of the filter mesh to increase when the material is incoming, causing the filter mesh to move relatively. In this way, the starting structure can be used to drive the guide structure to switch the corresponding position of the filter mesh when the material flows in. In this way, a certain position can be automatically switched according to the blockage situation, achieving an automated processing effect.

[0018] 4. When the touch piece appears on the detection path of the alarm structure, the alarm can be sounded through the alarm structure, and the filter element will be in a high-pressure state at this time; this indicates that the filtering capacity of the filter element has dropped to a state that requires maintenance and treatment; the purpose of detecting the filtering capacity of the filter element is achieved, so as to improve the utilization rate of the filter element, reduce production delays caused by maintenance shutdowns, and increase output. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Schematic diagram of some structures; Figure 3 for Figure 1 Schematic diagram of the structural explosion of the processing mechanism; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the middle processing mechanism; Figure 5 for Figure 3 Explosion diagram of some structures; Figure 6 for Figure 1 A sectional perspective view of part of the structure of the processing mechanism; Figure 7 for Figure 6 A front view of Figure 8 for Figure 7 Schematic diagram of structural explosion; The numbers in the figure represent: 1. Machine base; 2. Transmission device; 3. Mixing and melting device; 301. Multi-spiral mixing and conveying structure; 302. Casing; 303. Heating structure; 4. Processing agency; 401, tubular cavity structure; 4011, column; 4012, cavity one; 4013, support ring; 4014, spiral groove; 4015, cavity two; 4016, cylindrical cavity; 4017, functional cavity; 402, docking structure; 4021, end pipe; 4022, fixing piece; 403, heating element; 404, mixed piece; 4041, round tube; 4042, spiral line; 405, porous parts; 406, docking shaft; 407, filter mesh; 4071, structural ring; 4072, filter mesh; 408, flow guide structure; 4081, positioning tube; 4082, movable cannula; 4083, expansion piece; 4084, spring 1; 409, pipe head; 410, adaptive structure; 4101, columnar cavity; 4102, piston 1; 4103, push rod; 4104, piston 2; 4105, movable column; 4106, cover; 4107, spring 2; 411, protective shell; 412, touch member; 4121, touch switch; 4122, guide rod; 4123, spring three; 413, driving structure; 4131, motor; 4132, coupling rod; 4133, transmission assembly; 414, alarm structure; 4141, mounting rod; 4142, monitoring switch; 4143, buzzer alarm; 5. Die head. DETAILED DESCRIPTION

[0020] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1 This embodiment provides a technical solution: a cable extrusion raw material uniform mixing extrusion equipment and method, such as Figure 1-8 As shown, it comprises a machine base 1, a transmission device 2 and a mixing and melting device 3. The mixing and melting device 3 is arranged on the upper side of the machine base 1 and connected through the transmission device 2 fixed on one side of the machine base 1; the output end of the mixing and melting device 3 is first connected to a processing mechanism 4 and then connected to a die head 5, and the output material of the mixing and melting device 3 is transported to the die head 5 through the processing mechanism 4; Among them, the machine base 1, the transmission device 2, the mixing and melting device 3 and the die head 5 all adopt the existing technology, and they are equipped with corresponding facilities to meet the use requirements, so they are not described in detail in this embodiment.

[0022] The processing mechanism 4 includes a tubular cavity structure 401, a docking structure 402 and a pipe head piece 409. The tubular cavity structure 401 is provided with a first cavity and a second cavity communicating with each other. The docking structure 402 and the pipe head piece 409 are respectively connected to the two ends of the tubular cavity structure 401 and communicate with the first cavity and the second cavity. The docking structure 402 is connected to the mixing and melting device 3, and the pipe head piece 409 is connected to the die head 5. The tubular cavity structure 401 includes a column 4011, and a first cavity and a second cavity are arranged in the column 4011; Optional, reference Figure 3 A sinking ring is provided on the column 4011, and a heating element 403 for providing heating is sleeved on the sinking ring. The heating element 403 is a prior art and has corresponding functions. It can be selected according to needs, such as an electromagnetic heater, a thermal resistance heater, steam heating, etc. In this embodiment, an electromagnetic heater is selected.

[0023] The second cavity includes a cavity 4015 for sliding of the filter mesh member 407 and a cylindrical cavity 4016 coaxially connected thereto, and the cylindrical cavity 4016 is connected to the pipe head member 409 .

[0024] A porous processing structure is movably provided in the first cavity, and the structure is used to guide the mixed material entering from the mixing and melting device 3, and pass the material to ensure the uniformity of mixing and keep the temperature of the material relatively uniform.

[0025] A filter mesh 407 and a flow guide structure 408 are movably disposed in the second cavity. The filter mesh 407 and the flow guide structure 408 are connected to each other. The flow guide structure 408 is movably disposed in the second cavity and is slidably plugged into the pipe head 409. The processing mechanism 4 further comprises a starting structure, and the pipe head member 409 slides at a fixed distance so that the starting structure causes the filter mesh member 407 and the flow guide structure 408 to rotate relative to each other.

[0026] Optional, reference Figure 5 The filter mesh member 407 includes a structural ring 4071 slidably disposed in the second cavity 4015, a filter mesh 4072 is fixed on the structural ring 4071, a circular window is disposed in the middle of the structural ring 4071, and the filter mesh 4072 is fixed in the circular window.

[0027] The second cavity 4015 and the structural ring 4071 are axially slidable, and the second cavity 4015 is configured as a multi-corrugated structural cavity, and the structural ring 4071 is adapted thereto. The molten raw material is filtered through the filter screen 4072 .

[0028] Optionally, refer to Figure 5 , Figure 8 The flow guiding structure 408 includes a positioning tube 4081, a movable insert tube 4082 and an expansion piece 4083. The positioning tube 4081 is rotatably arranged in the cylindrical cavity 4016. The movable insert tube 4082 is inserted in the positioning tube 4081. The expansion piece 4083 is fixed to one end of the movable insert tube 4082 and docked with the structural ring 4071. The expansion piece 4083 is provided with a biased entry channel which communicates with the movable insert tube 4082. The opening of the biased entry channel is eccentrically arranged on one side of the expansion piece 4083. The expansion piece 4083 is provided with a spring 4084, and the spring 4084 abuts against the inner wall of the second cavity.

[0029] Among them, the cylindrical cavity 4016 is connected with the positioning tube 4081 through a bearing, so that the positioning tube 4081 rotates stably; in order for the movable insert 4082 and the positioning tube 4081 to slide and keep synchronous rotation, the movable insert 4082 is in a multi-prism shape, and the positioning tube 4081 is adapted thereto; the expansion piece 4083 is set in a truncated cone shape, and the axis of the deflected channel inside it is bent to facilitate the passage of molten materials and then enter the pipe head piece 409; and the connection between the cylindrical cavity 4016 and the second cavity 4015 is chamfered to adapt to the shape of the expansion piece 4083; for this reason, the guide structure 408 and the second accommodating cavity form an active cavity for accommodating the spring 1 4084, and the molten raw material will not enter the active cavity. One end of the spring 1 4084 is fixed on the movable insert 4082, and the other end is in contact with the chamfer. After installation, the spring 1 4084 is in a compressed state to adapt to the pressure required during work to meet production needs. An end tube that is slidably inserted into the positioning tube 4081 is provided at the end of the tube head member 409, and a flange is provided on the portion of the end of the tube head member 409 that protrudes outward from the tubular cavity structure 401 for fixed installation using bolts.

[0030] Optionally, the start structure includes an adaptive structure 410, a protective shell 411, a touch member 412 and a drive structure 413, the touch member 412 is arranged on the protective shell 411, and the adaptive structure 410 and the drive structure 413 are both arranged on the column 4011; refer to Figure 7 The adaptive structure 410 includes a columnar cavity 4101 arranged on the column 4011, the columnar cavity 4101 is L-shaped, a piston 1 4102 is slidably arranged in one direction in the columnar cavity 4101, a push rod 4103 is fixed on one side of the piston 1 4102, one end of the push rod 4103 penetrates the column 4011 and is fixed to the structural ring 4071; a piston 2 4104 is slidably arranged in the columnar cavity 4101 in the other direction, a movable column 4105 is fixed on the piston 2 4104, a cover 4106 is movably sleeved on the movable column 4105 and is fixed in the columnar cavity 4101 to close it, and a spring 2 4107 is fixed between the cover 4106 and the piston 2 4104; Among them, gas or liquid can be used in the chamber formed by piston 1 4102, piston 2 4104 and columnar cavity 4101. According to this embodiment, liquid is used; when piston 1 4102 slides, negative pressure on one side can push gas inward through the movable cavity; and when piston 2 4104 moves upward, the air between the cover 4106 and the spiral groove 4014 can be discharged.

[0031] refer to Figure 7The protective shell 411 is fixed on the outer periphery of the column 4011, wrapping the column 4011 to keep the overflow heat warm; the touch member 412 includes a touch switch 4121 that is arranged through the protective shell 411, a guide rod 4122 corresponding to the position of the movable column 4105 is fixed to the lower end of the touch switch 4121, a spring 4123 is arranged between the guide rod 4122 and the inner wall of the protective shell 411, and a spring 4124 is fixed to the top of the touch switch 4121; The guide rod 4122 can output different work intensity signals according to different pressing pressures, and the upper end of the movable column 4105 contacts the pressing area of ​​the guide rod 4122 to initiate the work signal.

[0032] The driving structure 413 includes a motor 4131 fixed on the column 4011, a coupling rod 4132 is fixed on the output shaft of the motor 4131, and one end of the coupling rod 4132 is connected to the positioning tube 4081 through a transmission assembly 4133. The transmission assembly 4133 in this embodiment is a bevel gear transmission structure. In order to meet the transmission requirements, a functional cavity 4017 for transmission of the transmission assembly 4133 is provided on the column 4011. The specific structure of the transmission assembly 4133 is not repeated here, and a structure with the same function can also be selected for implementation, such as a pulley transmission structure, a worm gear transmission structure, a sprocket transmission structure, etc.

[0033] When the guide rod 4122 initiates a working signal, the motor 4131 starts working. The number of working rotations obtained by the motor 4131 is different according to the working requirements issued by the guide rod 4122, showing a positive correlation trend; and the maximum value can be set according to the requirements. The guide rod 4122 is an existing technical structure, and its specific function is to output electrical signals of different strengths according to the touch strength, and output electrical signals to the controller of the motor 4131 through the built-in motherboard.

[0034] Further optionally, an alarm structure 414 is provided on the upper side of the protective shell 411; the alarm structure 414 includes a mounting rod 4141 fixed on the protective shell 411, a buzzer alarm 4143 is fixed to the top of the mounting rod 4141, and a monitoring switch 4142 that coincides with the motion trajectory of 4124 is fixed on the mounting rod 4141.

[0035] When 4124 moves into the sensing range of the monitoring switch 4142, the buzzer alarm 4143 is activated, and the monitoring switch 4142 can adjust its position as needed.

[0036] In this embodiment, when entering actual production, the machine base 1 and related facilities are started to work, and the mixing and melting device 3 is preheated; when it is in a production state, the raw materials are input into the mixing and melting device 3 for mixing and melting, and then the transmission device 2 is driven to obtain the function of conveying the raw materials, and the mixed and melted raw materials in the mixing and melting device 3 are sent to the processing mechanism 4. At this time, the raw materials first enter the first cavity through the docking structure 402, and then flow to the filter mesh member 407 in the second cavity after passing through the porous processing structure therein. The raw materials are filtered by the filter mesh 4072, and then the deflection channel in the expansion member 4083, and then enter the movable insert 4082, the positioning tube 4081 and then dock to flow into the pipe head member 409, and finally flow into the die head 5 and then are wrapped on the wire core through its molding.

[0037] Because impurities and other particles are unavoidable in production and may block the filter holes of the filter screen 4072, when a certain number of filter holes are blocked, the pressure on the filter screen 407 will increase, and further cause the spring 1 4084 to deform and compress, thereby further pushing the filter screen 407 to move, and the push rod 4103 connected thereto moves along with it, pushing the piston 1 4102 to slide in the columnar cavity 4101, squeezing the chamber formed by the columnar cavity 4101 and the piston 1 4102 and the piston 2 4104, and pushing the piston 2 4104 to move, thereby obtaining the force of compressing the spring 2 4107, and the movable column 4105 moves; when the movable column 4105 touches the guide rod 4122, it will compress the spring 3 4123 and cause the touch switch 4121 and the protective shell 411 to slide. Thus, the driving structure 413 is started, and the motor 4131 rotates the coupling rod 4132 and the transmission assembly 4133 to rotate the positioning tube 4081 to a certain angle, so that the position of the filter through the structural ring 4071 changes, and a new filter area is formed to solve the blockage problem. The problem that the filter blockage in the prior art is difficult to solve online is solved, and the ability of automatic processing is obtained, which reduces and prolongs the maintenance interval and avoids the problem that it is difficult to determine the blockage state of the filter during regular maintenance.

[0038] And when the filter element 407 is clogged and needs to be repaired, the 4124 on the touch switch 4121 enters the sensing range of the monitoring switch 4142, and the buzzer alarm 4143 is started to work and alarm, achieving a striking reminder effect and achieving the purpose of automatic monitoring.

[0039] Embodiment 2 This embodiment is further optimized on the basis of the first embodiment, and the same parts as the above technical solution will not be repeated here. Figure 1 - Figure 5 As shown, in order to better implement the present invention, the following configuration is particularly adopted: The first cavity includes a cavity 1 4012 and a support ring 4013 fixed at the junction of the first cavity and the second cavity. The push rod 4103 is annular, and the inner ring diameter corresponds to the diameter of the circular window of the structural ring 4071. A plurality of spiral grooves 4014 are arranged on the inner wall of the first cavity along its axial direction. The cavity 1 4012 is connected to the docking structure 402. One end of the docking structure 402 is arranged in the cavity 1 4012, and the docking structure 402 includes an end tube 4021 arranged in the cavity 1 4012 and fixed to the column 4011, and the other end of the end tube 4021 is fixed with a fixing piece 4022 connected and fixed to the output end of the mixing and melting device 3.

[0040] The porous processing structure includes a mixing member 404, a porous member 405 and a docking shaft 406. The mixing member 404 is fixedly connected to the porous member 405. One end of the docking shaft 406 is fixed to the porous member 405 and the other end is fixedly connected to the mixing and melting device 3. Among them, the docking of the docking shaft 406 with the structure of the mixing and melting device 3 is the source of the rotational force, and other structures can be set to provide a power source. In this embodiment, a docking method is provided; a fixed sleeve is sleeved on the docking shaft 406, and the fixed sleeve is welded and fixed on the porous member 405; the porous member 405 is movably plugged with the docking shaft 406. In order to better illustrate the docking relationship between the docking shaft 406 and the mixing and melting device 3, the main structure of the mixing and melting device 3 is schematically illustrated in this embodiment, which is all prior art, including but not limited to the following settings: the mixing and melting device 3 includes a multi-spiral mixing and conveying structure 301, the multi-spiral mixing and conveying structure 301 is directly docked with the output shaft of the transmission device 2, the multi-spiral mixing and conveying structure 301 is sleeved with a sleeve 302, the sleeve 302 is a shell that directly contacts the material, and the sleeve 302 is provided with a heating structure 303, the heating structure 303 is used to heat the sleeve 302 and keep the temperature stable; the end of the multi-spiral mixing and conveying structure 301 is provided with a docking hole corresponding to the insertion of the docking shaft 406 to maintain the connection.

[0041] The mixing element 404 includes a circular tube 4041 and a spiral line 4042. The circular tube 4041 is rotatably connected to the supporting ring 4013. A plurality of spiral lines 4042 arranged along the axial direction are arranged on the outer circumference of the circular tube 4041. The spiral lines 4042 and the spiral grooves 4014 are staggered, and a convection cavity is formed between the spiral lines 4042 and the spiral grooves 4014 to shear the convection material. The porous member 405 is fixed at the end of the circular tube 4041 . The porous member 405 is bowl-shaped. A plurality of through holes are processed on the inclined surface of the porous member 405 for guiding flow.

[0042] The mixing element 404, the porous element 405 and the inner wall of the first cavity form a feeding cavity, through which the molten raw material can flow.

[0043] In this embodiment, after the raw materials melted by the mixing and melting device 3 enter the first cavity through the docking structure 402, the porous member 405 first drains the mixed molten raw materials, so that the molten raw materials are preliminarily filtered through the porous member 405, and the porous member 405 is driven to rotate through the docking shaft 406, and the mixing member 404 rotates accordingly; the porous member 405 can block large pieces of raw materials, and through the structural setting characteristics of the porous member 405 and the effect of rotation, the large pieces of raw materials are distributed on the peripheral edge of the porous member 405; but the mixing member 404 is set, and the raw materials on the periphery of the porous member 405 are introduced into the area formed by the first cavity by the structure of the spiral line 4042, and the raw materials are processed in cooperation with the spiral line groove 4014. The raw materials are introduced when the spiral line 4042 rotates, and then the spiral line groove 4014 cooperates to form convection shear, so as to improve the mixing effect, process the unmelted materials, and reduce the probability of blockage.

[0044] A method for operating a cable extrusion raw material uniform mixing extrusion device, using any of the above cable extrusion raw material uniform mixing extrusion devices for processing, the specific steps are as follows: Step 1: Start the machine for preheating and select a suitable heating temperature according to the characteristics of the product, and preheat by setting the temperature value of the facilities provided by the mixing and melting device 3, the processing mechanism 4 and the die head 5; start the machine base 1 and put the mixing and melting device 3 into working state through the transmission action of the transmission device 2.

[0045] Step 2: prepare base materials, auxiliary materials and other raw materials, add them quantitatively into the material input port of the mixing and melting device 3 through an external screw conveyor, then add the raw materials into the mixing and melting device 3, and heat and melt the raw materials in the mixing and melting device 3 to complete the mixing and obtain a fluid substance.

[0046] Step three: Filter impurities in the fluid material, and allow the fluid material obtained through the mixing and melting device 3 to enter the processing mechanism 4 under the continuous conveying action of the mixing and melting device 3, and be pre-processed by the porous processing structure of the processing mechanism 4; then, the filtered fine fluid is obtained through the filtering action of the guide structure 408 and flows into the die head 5.

[0047] In the specific filtering step, the molten raw material needs to be filtered through the porous member 405, and at the same time, the unmelted large particles in the raw material after melting are guided by the structure of the porous member 405 and cooperate with the mixing member 404 to form convection in the area to enhance the interaction of the unmelted substances and improve the melting of the large particles of the raw material, which is completed in cooperation with the heating member 403; and the molten raw material obtained by the subsequent treatment must be filtered through the filter mesh 407. When impurities block the filter mesh 407, the area where the raw material is filtered by the filter mesh 407 can be switched through the cooperation of the guide structure 408 and the starting structure to improve the blockage state; and under a certain blockage intensity, an alarm can be given in time through the alarm structure 414.

[0048] Step 4: Input the fluid into the die head 5 for molding. The desired molding is obtained through the action of the die head 5. With the help of external cooling equipment and pulling equipment, the obtained molding material is stretched and deformed to be wrapped on the wire core. The extruded molding wrapped on the wire core is solidified by air cooling or water cooling.

[0049] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A cable extrusion raw material uniform mixing extrusion equipment, characterized in that: include: A machine base (1), a transmission device (2) and a mixing and melting device (3), wherein the mixing and melting device (3) is arranged on the upper side of the machine base (1) and is connected to the transmission device (2) fixed on one side of the machine base (1); a processing mechanism (4) and a die head (5); the processing mechanism (4) is connected between the output end of the mixing and melting device (3) and the die head (5); the material output from the output end of the mixing and melting device (3) is transported into the die head (5) through the processing mechanism (4); The processing mechanism (4) comprises a tubular cavity structure (401), a docking structure (402) and a tube head piece (409); a first cavity and a second cavity communicating with each other are arranged in the tubular cavity structure (401); the docking structure (402) and the tube head piece (409) are respectively connected to the two ends of the tubular cavity structure (401) and communicate with the first cavity and the second cavity; the docking structure (402) is connected to the mixing and melting device (3); and the tube head piece (409) is connected to the die head (5); A porous processing structure is movably disposed in the first cavity; A filter mesh (407) and a flow guide structure (408) are movably disposed in the second cavity, the filter mesh (407) and the flow guide structure (408) are connected to each other, and the flow guide structure (408) is movably disposed in the second cavity and is slidably plugged with the pipe head (409); The processing mechanism (4) further comprises a starting structure, and the pipe head member (409) slides at a fixed distance so that the starting structure causes the filter mesh member (407) and the flow guide structure (408) to rotate relative to each other.

2. The cable extrusion raw material uniform mixing extrusion equipment according to claim 1, characterized in that: The tubular cavity structure (401) comprises a column (4011), and a first cavity and a second cavity are arranged in the column (4011); The first cavity comprises cavity one (4012) and a support ring (4013) fixed at the junction of the first cavity and the second cavity, a plurality of spiral grooves (4014) are arranged on the inner wall of the first cavity along its axial direction, and the cavity one (4012) is connected to the docking structure (402); The second cavity comprises a second cavity (4015) for sliding the filter mesh member (407) and a cylindrical cavity (4016) coaxially connected thereto, wherein the cylindrical cavity (4016) is connected to the pipe head member (409).

3. The cable extrusion raw material uniform mixing extrusion equipment according to claim 2, characterized in that: One end of the docking structure (402) is arranged in cavity one (4012), and the docking structure (402) comprises an end tube (4021) arranged in cavity one (4012) and fixed to the column (4011), and the other end of the end tube (4021) is fixed with a fixing piece (4022) connected and fixed to the output end of the mixing and melting device (3).

4. The cable extrusion raw material uniform mixing extrusion equipment according to claim 2, characterized in that: The column (4011) is provided with a sinking ring, and a heating element (403) for providing heating is sleeved on the sinking ring.

5. The cable extrusion raw material uniform mixing extrusion equipment according to claim 3, characterized in that: The porous processing structure comprises a mixing piece (404), a porous piece (405) and a docking shaft (406); the mixing piece (404) is fixedly connected to the porous piece (405); one end of the docking shaft (406) is fixedly connected to the porous piece (405) and the other end is fixedly connected to the mixing and melting device (3); The mixing element (404) comprises a circular tube (4041) and a spiral line (4042); the circular tube (4041) is rotatably connected to a supporting ring (4013); a plurality of spiral lines (4042) arranged along the axial direction are arranged on the outer circumference of the circular tube (4041); the spiral lines (4042) and the spiral line grooves (4014) are interlaced; a convection cavity is formed between the spiral lines (4042) and the spiral line grooves (4014) to shear convection materials; The porous member (405) is fixed to the end of the circular tube (4041); the porous member (405) is bowl-shaped; a plurality of through holes are machined on the inclined surface of the porous member (405) for guiding flow.

6. The cable extrusion raw material uniform mixing extrusion device according to claim 2 or 5, characterized in that: The filter mesh element (407) comprises a structural ring (4071) slidably arranged in the second cavity (4015), a filter mesh (4072) being fixed on the structural ring (4071), a circular window being arranged in the middle of the structural ring (4071), and the filter mesh (4072) being fixed in the circular window.

7. The cable extrusion raw material uniform mixing extrusion equipment according to claim 6, characterized in that: The flow guiding structure (408) comprises a positioning tube (4081), a movable insert tube (4082) and an expansion piece (4083); the positioning tube (4081) is rotatably arranged in the cylindrical cavity (4016); the movable insert tube (4082) is inserted in the positioning tube (4081); the expansion piece (4083) is fixed to one end of the movable insert tube (4082) and docked with the structural ring (4071); the expansion piece (4083) is provided with a deflection channel which is in communication with the movable insert tube (4082); the opening of the deflection channel is eccentrically arranged on one side of the expansion piece (4083); the expansion piece (4083) is provided with a spring 1 (4084); the spring 1 (4084) abuts against the inner wall of the second cavity.

8. The cable extrusion raw material uniform mixing extrusion equipment according to claim 7, characterized in that: The start-up structure comprises an adaptive structure (410), a protective shell (411), a touch member (412), and a drive structure (413); the touch member (412) is arranged on the protective shell (411), and the adaptive structure (410) and the drive structure (413) are both arranged on the column (4011); The adaptive structure (410) comprises a columnar cavity (4101) arranged on a column (4011), the columnar cavity (4101) being L-shaped, a piston 1 (4102) being slidably arranged in one direction in the columnar cavity (4101), a push rod (4103) being fixed on one side of the piston 1 (4102), one end of the push rod (4103) passing through the column (4011) and being fixed to a structural ring (4071); a piston 2 (4104) being slidably arranged in another direction in the columnar cavity (4101), a movable column (4105) being fixed on the piston 2 (4104), a cover (4106) being movably sleeved on the movable column (4105) and being fixed in the columnar cavity (4101) to seal it, and a spring 2 (4107) being fixed between the cover (4106) and the piston 2 (4104); The protective shell (411) is fixed on the outer periphery of the column (4011); The touch member (412) comprises a touch switch (4121) which is arranged on the protective shell (411) and passes through the touch switch (4121); a guide rod (4122) corresponding to the position of the movable column (4105) is fixed at the lower end of the touch switch (4121); a spring (4123) is arranged between the guide rod (4122) and the inner wall of the protective shell (411); and a spring (4124) is fixed at the top end of the touch switch (4121); The driving structure (413) comprises a motor (4131) fixed on a column (4011), a coupling rod (4132) being fixed on an output shaft of the motor (4131), and one end of the coupling rod (4132) being transmission-connected to a positioning tube (4081) via a transmission assembly (4133).

9. The cable extrusion raw material uniform mixing extrusion equipment according to claim 8, characterized in that: An alarm structure (414) is provided on the upper side of the protective shell (411); The alarm structure (414) comprises a mounting rod (4141) fixed on the protective shell (411), a buzzer alarm (4143) being fixed on the top end of the mounting rod (4141), and a monitoring switch (4142) which coincides with the motion trajectory of (4124) being fixed on the mounting rod (4141).

10. An operating method of a cable extrusion raw material uniform mixing extrusion device, using the cable extrusion raw material uniform mixing extrusion device according to any one of claims 1 to 9 for processing, characterized in that: The specific steps are as follows: Step 1: Start the machine for preheating and select a suitable heating temperature according to the characteristics of the product, and preheat the mixing and melting device (3), the processing mechanism (4) and the die head (5) by setting the temperature value of the facilities; start the machine base (1) and put the mixing and melting device (3) into working state through the transmission action of the transmission device (2); Step 2: preparing raw materials such as base materials and auxiliary materials, adding them quantitatively to the material input port of the mixing and melting device (3) via an external screw conveyor, then adding the raw materials into the mixing and melting device (3), and heating and melting the raw materials in the mixing and melting device (3) to complete mixing and obtain a fluid substance; Step 3: Filter impurities in the fluid material, and allow the fluid material obtained by the mixing and melting device (3) to enter the processing mechanism (4) under the continuous conveying action of the mixing and melting device (3), and be pre-processed by the porous processing structure of the processing mechanism (4); then, through the filtering action of the guide structure (408), a filtered fine fluid is obtained, and then flows through the processing mechanism (4) to the die head (5); Step 4: Input the fluid into the die head (5) for molding, and obtain the desired molding after the action of the die head (5). Cooperate with external cooling equipment and pulling equipment to stretch the obtained molding material and wrap it on the wire core, and solidify the extruded molding wrapped on the wire core by air cooling or water cooling.

Images