CN116141623A - Plastic extrusion device for cable molding - Google Patents

Abstract

The utility model relates to a cable shaping is with plastics extrusion device belongs to the technical field of extruding machine, including mount table, the plastics extruder of vertical setting on the mount table top surface, transversely set up on the mount table top surface and with the plastics plasticizing mechanism that the barrel of plastics extruder is connected, plastics plasticizing mechanism includes through the plasticizing section of thick bamboo of a rest mechanism support on the mount table top surface, be connected with the plasticizing section of thick bamboo and be used for promoting the material in the plasticizing section of thick bamboo to being close to the pushing components that the connecting cylinder direction removed and can dismantle raw materials feeding subassembly and the additive feeding subassembly of connection on the plasticizing section of thick bamboo top surface, the inside of plasticizing section of thick bamboo is formed with the runner with the barrel intercommunication of plastics extruder, the runner divide into the charging section that is located raw materials feeding subassembly below, be located melting section between raw materials feeding subassembly and the additive feeding subassembly and be located the homogenization section of additive feeding subassembly below. The present application has the effect of being able to sufficiently melt and homogenize a variety of raw materials.

Description

Plastic extrusion device for cable molding

Technical Field

The application relates to the technical field of plastic extruding machines, in particular to a plastic extruding device for cable forming.

Background

At present, in the production process of the cable, the copper wire needs to be subjected to extrusion operation, namely, the surface of the copper wire is wrapped with an inner protection layer for protecting the wire core, and the inner protection layer isolates the copper wire or other metal wires from the outside, so that the insulation effect is achieved.

The current chinese patent with publication number CN217395635U discloses an environment-friendly cable molding extruder, including extrusion tube, extrusion mouth, mount, steering wheel, base, clean mechanism and multiunit extrusion mechanism, multiunit extrusion mechanism sets up on the base to multiunit extrusion machine all communicates with extrusion tube, every group extrusion mechanism all includes extrusion barrel, communicating pipe, motor, speed reducer, extrusion threaded rod and loading hopper, communicating pipe both ends communicate with extrusion barrel and extrusion tube respectively, the motor is installed in speed reducer input department, the speed reducer is installed at extrusion barrel other end, extrusion threaded rod is arranged in extrusion barrel to extrusion threaded rod one end passes extrusion barrel and is connected with the speed reducer output, the loading hopper communicates with extrusion barrel, and is provided with heating module on extrusion barrel outer wall. The raw materials of the protective layer to be used are respectively added into a plurality of groups of extrusion barrels through a plurality of groups of charging hoppers, the corresponding motors are electrified and started, the power output by the motors is reduced through a speed reducer, then the extrusion threaded rod is rotated, and the materials are melted under the heating action of the heating module and are discharged into the extrusion pipe through the communicating pipe.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: the raw materials of the multiple protective layers are respectively hot melted through the multiple groups of extrusion barrels and then discharged into the extrusion pipe through the communicating pipe, so that the raw materials of the multiple protective layers are not favorable for full melting and homogenization.

Disclosure of Invention

In order to sufficiently melt and homogenize various raw materials, the present application provides a plastic extrusion device for cable molding.

The application provides a cable shaping is with plastics extrusion device adopts following technical scheme:

the utility model provides a cable shaping is with plastics extrusion device, includes mount table, the vertical plastics extruder that sets up on the mount table top surface, transversely set up on the mount table top surface and with the plastics plasticizing mechanism that the barrel of plastics extruder is connected, plastics plasticizing mechanism includes through the plasticizing section of thick bamboo of support mechanism support on the mount table top surface, be connected with the plasticizing section of thick bamboo and be used for promoting the material in the plasticizing section of thick bamboo to being close to the pushing components that the connecting cylinder direction removed and can dismantle raw materials feeding subassembly and additive feeding subassembly of connection on the plasticizing section of thick bamboo top surface, the inside of plasticizing section of thick bamboo is formed with the runner with the barrel intercommunication of plastics extruder, the runner divide into the charging section that is located raw materials feeding subassembly below, be located melting section and the homogenization section that is located the additive feeding subassembly below between raw materials feeding subassembly and the additive feeding subassembly.

By adopting the technical scheme, the plastic raw materials enter the charging section of the runner through the discharge port of the raw material feeding assembly, and are conveyed into the melting section in the plasticizing cylinder for hot melting under the pushing action of the spiral pushing piece; the additive enters the homogenization section of the runner through the discharge port of the additive feeding component, so that the additive and molten plastic raw materials are sufficiently melted and homogenized, the materials are in a completely uniform plasticizing state, the plasticized materials are conveyed into the machine barrel of the plastic extruder under the pushing action of the pushing component, then are extruded and molded through a die head in the plastic extruder under the pushing force of the screw rod of the plastic extruder, and the plasticized materials are uniformly attached to the surface of a copper wire to serve as a protective layer of a cable, so that the effect of sufficiently melting and homogenizing various raw materials is achieved.

Optionally, raw materials feeding subassembly includes feeder hopper, feed cylinder, sets up stirring piece and the screw feed piece of setting in the feed cylinder in the feeder hopper, the connection can be dismantled through the flange with the top of feed cylinder to the less one end opening of feeder hopper cross-sectional area, the one end that the feed cylinder kept away from the feeder hopper can be dismantled and be connected on the top surface of plasticizing section of thick bamboo, the top opening part fixedly connected with apron of feeder hopper, the fixed inlet pipe of wearing to have vertical setting of apron, install driving piece and reduction gear on the top surface of apron, the output of driving piece and the input fixed connection of reduction gear, the output fixedly connected with (mixing) shaft of reduction gear, stirring piece fixed connection is in the week side of (mixing) shaft, just the stirring piece is located the feeder hopper, screw feed piece fixed connection is in the week side of (mixing) shaft, just screw feed piece is located the feed cylinder.

Through adopting above-mentioned technical scheme, the stirring piece is used for carrying out even stirring to the material that is located the feeder hopper, and the spiral feeding piece is used for carrying the material after the stirring to the runner in from the feed cylinder.

Optionally, each stirring piece all includes stirring board and upper and lower setting side by side and fixed connection are long connecting rod and short connecting rod on the (mixing) shaft week side, one side that the (mixing) shaft was kept away from to the stirring board is pressed close to with the inside wall of feeder hopper, one side top that the stirring board is close to the (mixing) shaft is kept away from the one end fixed connection of (mixing) shaft with long connecting rod, one side bottom that the stirring board is close to the (mixing) shaft is kept away from the one end fixed connection of (mixing) shaft with short connecting rod, the screw feeding piece is fixed connection's feeding helical blade on the (mixing) shaft week side.

Through adopting above-mentioned technical scheme, under the joint connection effect of long connecting rod and short connecting rod for (mixing) shaft pivoted in-process drives the stirring board and rotates, thereby carries out even stirring to the material that is located the feeder hopper.

Optionally, the pushing component comprises a connecting box fixed on the top surface of the mounting table and located at one end of the plasticizing barrel away from the connecting barrel, a power piece installed on one side of the connecting box away from the plasticizing barrel, a polygonal shaft fixedly connected with the output end of the power piece, and a plurality of sections of spiral pushing pieces sleeved on the circumference side of the polygonal shaft in sequence, one end of the polygonal shaft away from the power piece penetrates through the connecting box and extends into the plasticizing barrel, the spiral pieces located on the spiral pushing pieces on the feeding section and the homogenizing section are continuous spiral pieces, and the spiral pieces located on the spiral pushing pieces on the melting section are intermittent spiral pieces, and the continuous spiral pieces and the intermittent spiral pieces are sequentially arranged.

Through adopting above-mentioned technical scheme, power piece drive polygonal axle rotates, and pivoted polygonal axle drives spiral pushing piece and rotates to in carrying the barrel of plastics extruder with the material that is located the runner.

Optionally, the inside wall of plasticizing section of thick bamboo just is located and can dismantle between melting section and the homogenization section and be connected with spacing piece, plasticizing section of thick bamboo includes that two symmetries set up and can splice each other the equal threaded connection of inner wall both sides of working section of thick bamboo has a plurality of lining bars, and a plurality of lining bars that are located on same inside wall of same working section of thick bamboo are equidistant along same straight line and distribute, each the lining bar is located between the adjacent flight on the spiral pushing part.

Through adopting above-mentioned technical scheme, after the plastics raw materials is heated through melting section, can be in the molten state, relative volume can reduce, under the spacing effect of spacing piece, has slowed down the conveying speed of the plastics raw materials of molten form to improve the hot melt effect of plastics raw materials in melting section, and the setting of lining pole makes the more even mixing and the homogenization of material.

Optionally, can dismantle the connection through the connecting cylinder between the barrel of plasticizing section of thick bamboo and plastics extruder, every equal fixedly connected with connector in both ends of working cylinder, two connectors on the same terminal surface of plasticizing section of thick bamboo splice each other and form the ring flange, the flange is installed to the one end that the connecting cylinder is close to the plasticizing section of thick bamboo, and is mutually laminated flange and ring flange pass through staple bolt and can dismantle the connection.

Through adopting above-mentioned technical scheme, the setting of staple bolt has realized the detachable connection between connecting cylinder and the plasticizing section of thick bamboo.

Optionally, articulated on the top surface of mount table have two electric telescopic handle that the symmetry set up, two electric telescopic handle's flexible end is articulated with the side that two working cylinders kept away from each other respectively, the support end of support mechanism is connected with two working cylinders respectively, support mechanism is provided with two sets of, electric telescopic handle is located between two sets of support mechanisms.

Through adopting above-mentioned technical scheme, cooperation two support mechanisms are to the support effect of two working cylinders respectively, and the setting of two electric telescopic handle is used for opening or closing two working cylinders to be convenient for overhaul the spiral pushing piece that is located the plasticizing section of thick bamboo.

Optionally, each the support mechanism all includes the riser of fixing on the mount table top surface, fixed axle, two movable sleeves of fixed epaxial go-between of riser one side top and two dislocation set and the support arm of fixed connection on two go-between week sides respectively, the support arm is kept away from the one end of go-between and the side fixed connection of the working barrel that the position corresponds, the fixed axle is kept away from the one end of riser and can be dismantled through the locking piece and be connected with the shutoff board.

Through adopting above-mentioned technical scheme, when two working cylinders are opened, two bracket arms play the effect of supporting respectively to two working cylinders.

Optionally, be provided with the spacing subassembly that is used for spacing go-between on the top surface of mount table, spacing subassembly is including fixing the support on the mount table top surface, with the top fixed connection's of support installation casing, set up the linkage in the installation casing, with the top of linkage be connected bear the weight of the frame and with the cardboard of linkage bottom connection, the bayonet socket that corresponds with the cardboard position has been seted up on the week side of go-between, just the cross-sectional area of bayonet socket is greater than the cross-sectional area of cardboard.

Through adopting above-mentioned technical scheme, when two working cylinders are opened, two support arms drive the go-between and rotate for the position of bayonet socket also corresponds the removal, simultaneously, the outer wall of working cylinder and the bearing end butt of bearing frame, make the bearing frame that moves down drive the cardboard through the linkage piece and rotate, until the cardboard joint in the bayonet socket, thereby carry out spacingly to the go-between.

Optionally, the linkage piece comprises a fixed plate fixedly connected to the bottom of the inner wall of the installation shell, two vertical rods respectively fixedly connected to two ends of the top surface of the fixed plate, a reset piece sleeved on each vertical rod, a movable plate which is connected in the installation shell in a sliding manner and is positioned above the fixed plate, and a linkage shaft which vertically penetrates through the movable plate and the fixed plate, wherein the top ends of the two vertical rods vertically penetrate through the movable plate and are connected with the movable plate in a sliding manner, the reset piece is positioned between the movable plate and the fixed plate, the bottom of the bearing frame extends into the installation shell and is fixedly connected with the top surface of the movable plate, the bearing end of the bearing frame is abutted to the outer wall of the working cylinder, a curved slot is formed in the peripheral side of the linkage shaft, a sliding block which is slidably connected with the curved slot is fixedly connected to the connecting position of the movable plate and the linkage shaft, the linkage shaft is rotationally connected with the fixed plate, the bottom of the linkage shaft vertically penetrates through the installation shell and extends out of the installation shell, and the bottom of the linkage shaft is fixedly connected with the clamping plate.

Through adopting above-mentioned technical scheme, when the outer wall of working cylinder and the bearing end butt of bearing frame, bear the frame and promote the movable plate and move down, at the in-process that the movable plate moved down, the restoring element is in the compressed state, and the extending direction in slider extension curve groove slides for the universal driving axle drives the cardboard and rotates 90 and joint in the bayonet socket, thereby plays spacing effect to the rotation of go-between.

In summary, the present application includes at least one of the following beneficial technical effects:

the plastic raw materials enter a charging section of the runner through a discharge hole of the raw material feeding assembly, and are conveyed into a melting section in the plasticizing cylinder for hot melting under the pushing action of the spiral pushing piece; the additive enters the homogenization section of the runner through the discharge port of the additive feeding component, so that the additive and molten plastic raw materials are sufficiently melted and homogenized, the materials are in a completely uniform plasticizing state, the plasticized materials are conveyed into the machine barrel of the plastic extruder under the pushing action of the pushing component, then are extruded and molded through a die head in the plastic extruder under the pushing force of the screw rod of the plastic extruder, and the plasticized materials are uniformly attached to the surface of a copper wire to serve as a protective layer of a cable, so that the effect of sufficiently melting and homogenizing various raw materials is achieved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present application.

Fig. 2 is an enlarged partial schematic view of the portion a in fig. 1.

FIG. 3 is a schematic cross-sectional view of the plastic plasticizing mechanism of the present application.

Fig. 4 is a partially enlarged schematic view of the portion B in fig. 3.

Fig. 5 is an enlarged partial schematic view of the portion C in fig. 3.

Fig. 6 is a schematic structural view of the screw pusher of the present application.

Fig. 7 is a schematic structural view of the bracket mechanism and the spacing assembly of the present application.

Fig. 8 is a partially enlarged schematic view of the portion D in fig. 7.

Reference numerals illustrate: 1. a mounting table; 11. a plastic extruder; 12. a connecting cylinder; 121. a connecting flange; 13. an electric telescopic rod; 2. a plastic plasticizing mechanism; 21. a plasticizing cylinder; 211. a connecting body; 212. a positioning groove; 213. a fastener; 214. a charging section; 215. a melting section; 216. a homogenization section; 217. a limiting piece; 218. a first exhaust stack; 219. a second exhaust pipe; 22. a pushing component; 221. a connection box; 222. a power member; 223. a polygonal shaft; 224. a spiral pushing piece; 225. a fixing member; 226. a sealing plate; 23. a raw material feed assembly; 231. a feed hopper; 2311. a cover plate; 2312. a driving member; 2313. a speed reducer; 2314. a stirring shaft; 232. a feed cylinder; 2321. a fixed flange; 233. a stirring member; 2331. a stirring plate; 2332. a long connecting rod; 2333. a short connecting rod; 234. a screw feeding member; 24. an additive feed assembly; 25. a hoop; 251. an arc-shaped hoop plate; 252. wrapping edges; 253. a connecting sheet; 254. a notch; 255. a threaded rod; 256. a nut; 26. a lining rod; 3. a support mechanism; 31. a vertical plate; 32. a locking member; 321. a plugging plate; 33. a connecting ring; 331. a bayonet; 34. a support arm; 4. a limit component; 41. a bracket; 42. a mounting shell; 43. a linkage member; 431. a fixing plate; 432. a vertical rod; 433. a reset member; 434. a moving plate; 4341. a slide block; 435. a linkage shaft; 4351. a curved slot; 44. a carrier; 45. and (5) clamping plates.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses a cable shaping is with plastics extrusion device. Referring to fig. 1 and 2, the plastic extrusion device for cable molding comprises a mounting table 1, a plastic extruder 11 longitudinally arranged on the top surface of the mounting table 1, and a plastic plasticizing mechanism 2 transversely arranged on the top surface of the mounting table 1 and connected with a barrel of the plastic extruder 11; the plastic plasticizing mechanism 2 is detachably connected with the machine barrel of the plastic extruder 11 through a connecting barrel 12; the plastic plasticizing mechanism 2 melts and homogenizes the plastic raw materials and additives sufficiently to make the materials in a completely uniform plasticizing state, then flows the plasticized materials into the machine barrel of the plastic extruder 11 through the connecting barrel 12, and is extruded and molded through a die head in the plastic extruder 11 under the thrust of a screw rod of the plastic extruder 11, and the plasticized materials are uniformly attached to the surface of a copper wire to serve as a protective layer of a cable.

Referring to fig. 1 and 3, the supporting mechanism 3 is located below the plastic plasticizing mechanism 2 on the top surface of the mounting table 1, and the plastic plasticizing mechanism 2 includes a plasticizing cylinder 21 connected to a supporting end of the supporting mechanism 3, a pushing component 22 connected to the plasticizing cylinder 21 for pushing the material in the plasticizing cylinder 21 to move toward the connecting cylinder 12, and a raw material feeding component 23 and an additive feeding component 24 detachably connected to the top surface of the plasticizing cylinder 21 and sequentially arranged along the conveying direction of the material.

Referring to fig. 2 and 3, the cross section of the plasticizing cylinder 21 is in an outer square and an inner round, and the length direction of the plasticizing cylinder 21 is perpendicular to the length direction of the barrel of the plastic extruder 11; the plasticizing cylinder 21 has a flow passage formed therein, which communicates with the connecting cylinder 12. The plasticizing cylinder 21 comprises two symmetrically arranged working cylinders, and the two working cylinders are mutually spliced to form the plasticizing cylinder 21; the two ends of each working cylinder are fixedly connected with semicircular connectors 211, and the two connectors 211 on the same end face of the plasticizing cylinder 21 are spliced with each other to form a flange; the two connecting bodies 211 positioned on the same end face of the plasticizing cylinder 21 are detachably connected through the anchor ear 25.

Referring to fig. 2 and 4, the anchor ear 25 includes two arc-shaped hoop plates 251 hinged to each other, and both sides of each arc-shaped hoop plate 251 are uniformly formed with radially extending rims 252; one end of each of the two arc plates, which is far away from the hinging position, is fixedly connected with a connecting sheet 253, and the two connecting sheets 253 are provided with corresponding notches 254, and when the two connecting sheets 253 are attached, the two notches 254 are communicated; a threaded rod 255 is hinged on the notch 254 of one of the connecting plates 253, and a nut 256 is connected on the threaded rod 255 in a threaded manner; the connecting cylinder 12 is provided with a connecting flange 121 at one end near the plasticizing cylinder 21. When the two working cylinders are spliced to form the plasticizing cylinder 21, the two connecting bodies 211 on the same end face of the plasticizing cylinder 21 are spliced to form a flange plate, and the end faces of the connecting flange 121, which are close to each other, are mutually attached, so that the two arc-shaped hooping plates 251 are buckled on the connecting flange 121, which are mutually attached, and the two wrapping edges 252 respectively wrap the edges of the end faces, which are far away from each other, of the connecting flange 121; the anchor ear 25 is further made to grip the flange 121 and the flange plate attached to each other by the threaded connection of the threaded rod 255 and the nut 256. The flange of the plasticizing cylinder 21 remote from the connecting cylinder 12 is clamped by a further anchor ear 25.

Referring to fig. 2 and 5, the raw material feeding unit 23 and the additive feeding unit 24 are identical in structure, so in the present embodiment, the raw material feeding unit 23 is exemplified; the raw material feeding assembly 23 includes a feed hopper 231, a feed cylinder 232, a stirring member 233 provided in the feed hopper 231, and a screw feeding member 234 provided in the feed cylinder 232; the opening at one end of the feed hopper 231 with smaller cross-sectional area is detachably connected with the top end of the feed cylinder 232 through a flange; one end of the feeding cylinder 232, which is far away from the feeding hopper 231, is fixedly connected with a fixing flange 2321, a positioning groove 212 corresponding to the position of the fixing flange 2321 is formed in the top surface of the plasticizing cylinder 21, the fixing flange 2321 is matched with the positioning groove 212, and the fixing flange 2321 is detachably connected with the positioning groove 212 through a fastener 213. In this embodiment, the fastener 213 is a bolt.

Referring to fig. 2 and 5, a cover plate 2311 is fixedly connected to an upper opening of the feed hopper 231, and a vertically arranged feed pipe is fixedly arranged through the cover plate 2311; the top surface of the cover plate 2311 is provided with a driving member 2312 and a decelerator 2313; the output end of the driving piece 2312 is fixedly connected with the input end of the speed reducer 2313, and the output end of the speed reducer 2313 is fixedly connected with the stirring shaft 2314; the stirring shaft 2314, the feed hopper 231 and the feed cylinder 232 are coaxially arranged, the stirring piece 233 is fixedly connected to the circumferential side of the stirring shaft 2314, and the stirring piece 233 is positioned in the feed hopper 231; the stirring pieces 233 are provided with two groups, and the two groups of stirring pieces 233 are arranged on the circumference side of the stirring shaft 2314 in a vertically staggered manner; screw feed 234 is fixedly attached to the peripheral side of stirring shaft 2314, and screw feed 234 is located in feed cylinder 232.

Referring to fig. 2 and 5, each stirring member 233 includes a stirring plate 2331 and long and short connecting rods 2332 and 2333 disposed side by side up and down and fixedly connected to the circumferential side of the stirring shaft 2314; one side of stirring plate 2331, which is far away from stirring shaft 2314, is close to the inner side wall of feed hopper 231, one side top of stirring plate 2331, which is close to stirring shaft 2314, is fixedly connected with one end of long connecting rod 2332, which is far away from stirring shaft 2314, and one side bottom of stirring plate 2331, which is close to stirring shaft 2314, is fixedly connected with one end of short connecting rod 2333, which is far away from stirring shaft 2314. The screw feeding member 234 is a feeding screw blade fixedly attached to the circumferential side of the stirring shaft 2314.

Thus, the driving member 2312 is started, the output shaft of the driving member 2312 drives the stirring shaft 2314 to rotate through the speed reducer 2313, and the stirring plate 2331 and the feeding helical blade are driven to rotate by the rotating stirring shaft 2314, so that materials in the feeding barrel 232 are sufficiently stirred and then fed into the runner in a helical manner.

Referring to fig. 1 and 5, the pushing assembly 22 includes a connection box 221 fixed on the top surface of the mounting table 1 and located at one end of the plasticizing cylinder 21 away from the connection cylinder 12, a power member 222 installed at one side of the connection box 221 away from the plasticizing cylinder 21, a polygonal shaft 223 fixedly connected with the output end of the power member 222, and a plurality of spiral pushing members 224 sequentially sleeved on the circumferential side of the polygonal shaft 223; one end of the polygonal shaft 223, which is far away from the power piece 222, passes through the connecting box 221 and extends into the plasticizing cylinder 21, and the polygonal shaft 223 and the plasticizing cylinder 21 are positioned on the same axis; polygonal holes penetrating through two end surfaces of the spiral pushing piece 224 are formed in the spiral pushing piece 224; the polygonal hole of the screw pushing member 224 is matched with the polygonal shaft 223, and in this embodiment, the polygonal shaft 223 is a hexagonal shaft.

Referring to fig. 3 and 5, the flow path is divided into a charging section 214, a melting section 215 and a homogenizing section 216, which are sequentially arranged in the material conveying direction; the charging section 214 is located below the raw material feed assembly 23, the melting section 215 is located between the raw material feed assembly 23 and the additive feed assembly 24, and the homogenizing section 216 is located below the additive feed assembly 24; a heating plate (not shown) for heating is installed in the plasticizing cylinder 21 at the melting section 215. The flights on the screw flights 224 on the charging section 214 and the homogenizing section 216 are continuous flights (see FIG. 6) and the flights on the screw flights 224 on the melting section 215 are intermittent flights (see FIG. 6); the continuous spiral sheet and the intermittent spiral sheet are sequentially arranged. The polygonal shaft 223 is detachably connected with a sealing plate 226 through a fixing piece 225 at one end far away from the power piece 222, a limit plate (not shown in the figure) is fixedly sleeved on the periphery of the connecting shaft, the sealing plate 226 is positioned at one end of the polygonal shaft 223 close to the connecting cylinder 12, and the limit plate is positioned in the plasticizing cylinder 21 and at one end of the polygonal shaft 223 close to the connecting box 221. Thereby limiting the multi-section spiral pushing piece 224 between the limiting plate and the sealing plate 226 under the common clamping and limiting action of the limiting plate and the sealing plate 226. The inner wall both sides of each working cylinder are all threaded connection has a plurality of lining bars 26, and a plurality of lining bars 26 that are located on same inner wall of same working cylinder are equidistant along same straight line distribution, and each lining bar 26 is located between the adjacent flight to make the more even mixing and the homogenization of material.

Thus, the plastic raw material enters the charging section 214 of the runner through the discharge port of the raw material feeding assembly 23, and is conveyed into the melting section 215 in the plasticizing cylinder 21 for hot melting under the pushing action of the spiral pushing piece 224; the additive enters the homogenizing section 216 of the flow channel through the outlet of the additive feed assembly 24 so that the additive is sufficiently melted and homogenized with the molten plastic feedstock to place the feedstock in a completely uniform plasticized state.

In order to improve the thermal effect of the plastic raw material in the melting section 215, a limiting piece 217 is detachably connected between the melting section 215 and the homogenizing section 216 on the inner side wall of the plasticizing cylinder 21, the limiting piece 217 is formed by splicing two arc-shaped pieces, and each arc-shaped piece is detachably connected to the inner wall of the working cylinder corresponding to the position; therefore, after the plastic raw material is heated by the melting section 215, the plastic raw material is in a molten state, the relative volume is reduced, and the conveying speed of the molten plastic raw material is slowed down under the limiting action of the limiting piece 217, so that the hot melting effect of the plastic raw material in the melting section 215 is improved.

Referring to fig. 3 and 5, a first exhaust pipe 218 and a second exhaust pipe 219 are fixedly connected to the top surface of the plasticizing pipe 21; the first venting boss 218 is located between the stop tab 217 and the outlet of the additive feeding assembly 24, and the second venting boss 219 is located on a side of the additive feeding assembly 24 remote from the first venting boss 218. Thereby discharging the exhaust gas generated during the melting and homogenizing process of the plastic raw material, which is advantageous for maintaining the pressure balance inside and outside the plasticizing cylinder 21.

Referring to fig. 1 and 2, two symmetrically arranged electric telescopic rods 13 are hinged on the top surface of the mounting table 1, and the two electric telescopic rods 13 are positioned on two sides of the plasticizing cylinder 21; the telescopic ends of the two electric telescopic rods 13 are respectively hinged with the side surfaces of the two working cylinders, which are far away from each other; thus when the anchor ear 25 is unlocked, the electric telescopic rod 13 is started, the telescopic end of the electric telescopic rod 13 is contracted, and then the two working cylinders are opened.

Referring to fig. 1 and 7, the supporting ends of the supporting mechanism 3 are respectively connected with two working cylinders; the supporting mechanisms 3 are provided with two groups, and the electric telescopic rod 13 is positioned between the two groups of supporting mechanisms 3; each supporting mechanism 3 comprises a vertical plate 31 fixed on the top surface of the mounting table 1, a fixed shaft fixedly connected to the top of one side of the vertical plate 31, two connecting rings 33 movably sleeved on the fixed shaft, and two supporting arms 34 respectively fixedly connected to the peripheral sides of the two connecting rings 33; the length direction of the fixed shaft is consistent with the length direction of the plasticizing cylinder 21; the two supporting arms 34 are arranged in a staggered mode, and one end, away from the connecting ring 33, of each supporting arm 34 is fixedly connected with the side face of the corresponding working cylinder. So that when the two cylinders are opened, the two supporting arms 34 function as supports for the two cylinders, respectively. In order to limit the connecting ring 33 on the fixed shaft, one end of the fixed shaft far away from the vertical plate 31 is detachably connected with a plugging plate 321 through a locking piece 32.

Referring to fig. 7 and 8, four sets of limiting assemblies 4 for limiting the four connection rings 33 are provided on the top surface of the mounting table 1 (see fig. 1), respectively; each limiting component 4 comprises a bracket 41 fixed on the top surface of the mounting table 1, a mounting shell 42 fixedly connected with the top end of the bracket 41, a linkage piece 43 arranged in the mounting shell 42, a bearing frame 44 connected with the top end of the linkage piece 43 and a clamping plate 45 connected with the bottom end of the linkage piece 43;

referring to fig. 7 and 8, the linkage 43 includes a fixed plate 431 fixedly connected to the bottom of the inner wall of the installation housing 42, two vertical rods 432 fixedly connected to both ends of the top surface of the fixed plate 431, a reset member 433 sleeved on each vertical rod 432, a moving plate 434 slidably connected to the installation housing 42 and located above the fixed plate 431, and a linkage shaft 435 vertically penetrating the moving plate 434 and the fixed plate 431; the top ends of the two vertical rods 432 vertically penetrate through the movable plate 434 and are in sliding connection with the movable plate 434; in the present embodiment, the return member 433 is a spring, and the spring is located between the moving plate 434 and the fixed plate 431. The bottom end of the bearing frame 44 extends into the installation shell 42 and is fixedly connected with the top surface of the movable plate 434, and the bearing end of the bearing frame 44 is abutted with the outer wall of the working cylinder; the linkage shaft 435 is positioned between the two vertical rods 432, a curved groove 4351 is formed on the circumferential side of the linkage shaft 435, the curved groove 4351 extends along the circumferential direction and the axial direction of the linkage shaft 435, and the span of the curved groove 4351 along the circumferential direction of the linkage shaft 435 is 90 degrees; a sliding block 4341 which is in sliding connection with the curve groove 4351 is fixedly connected at the joint of the movable plate 434 and the linkage shaft 435, and the linkage shaft 435 is rotatably connected with the fixed plate 431 through a bearing; the bottom of the linkage shaft 435 vertically passes through the installation housing 42 and extends out of the installation housing 42, and the bottom of the linkage shaft 435 is fixedly connected with the clamping plate 45. The bayonet 331 corresponding to the position of the clamping plate 45 is formed on the peripheral side of the connecting ring 33, and the cross-sectional area of the bayonet 331 is larger than that of the clamping plate 45.

Therefore, when the two working cylinders are opened, the two supporting arms 34 drive the connecting ring 33 to rotate, so that the positions of the bayonets 331 correspondingly move; meanwhile, the outer wall of the working cylinder is abutted with the bearing end of the bearing frame 44, so that the bearing frame 44 pushes the moving plate 434 to move, in the process that the moving plate 434 moves downwards, the reset piece 433 is in a compressed state, and the sliding block 4341 slides in the extending direction of the extending curve groove 4351, so that the linkage shaft 435 drives the clamping plate 45 to rotate by 90 degrees, and one end, far away from the linkage shaft 435, of the clamping plate 45 is clamped in the clamping opening 331, so that the rotation of the connecting ring 33 is limited. The cross-sectional area of the bayonet 331 is larger than that of the clamping plate 45, so that when two working cylinders are required to be closed, a space is provided for the rotation of the connecting ring 33 in advance, and the clamping plate 45 can slide out of the bayonet 331 smoothly under the reset action of the reset piece 433.

The implementation principle of the plastic extrusion device for cable molding in the embodiment of the application is as follows: the plastic raw materials enter the charging section 214 of the runner through the discharge port of the raw material feeding assembly 23, and are conveyed into the melting section 215 in the plasticizing cylinder 21 for hot melting under the pushing action of the spiral pushing piece 224; the additive enters the homogenization section 216 of the runner through the discharge port of the additive feeding assembly 24, so that the additive and the molten plastic raw material are sufficiently melted and homogenized, the material is in a completely uniform plasticizing state, the plasticized material is conveyed into the barrel of the plastic extruder 11 under the pushing action of the pushing assembly 22, and then is extruded and molded through a die head in the plastic extruder 11 under the pushing force of the screw of the plastic extruder 11, and the plasticized material is uniformly attached to the surface of the copper wire to serve as a protective layer of the cable.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a cable shaping is with plastics extrusion device which characterized in that: the plastic plasticizing mechanism (2) is arranged on the top surface of the mounting table (1) in a longitudinal mode, is connected with a barrel of the plastic extruder (11) and comprises a plasticizing barrel (21) supported on the top surface of the mounting table (1) through a supporting mechanism (3), a pushing component (22) connected with the plasticizing barrel (21) and used for pushing materials in the plasticizing barrel (21) to move towards a direction close to the connecting barrel (12), and a raw material feeding component (23) and an additive feeding component (24) which are detachably connected to the top surface of the plasticizing barrel (21), a runner communicated with the barrel of the plastic extruder (11) is formed in the plasticizing barrel (21), and the runner is divided into a feeding section (214) located below the raw material feeding component (23), a melting section (215) located between the raw material feeding component (23) and the additive feeding component (24) and a homogenizing section (216) located below the additive feeding component (24).

2. A plastic extrusion apparatus for molding a cable according to claim 1, wherein: raw materials feeding subassembly (23) include feeder hopper (231), feed cylinder (232), set up stirring piece (233) and spiral feeding piece (234) of setting in feed cylinder (232) in feeder hopper (231), the connection can be dismantled through the flange with the top of feed cylinder (232) in the less one end opening of feeder hopper (231) cross-sectional area, the connection can be dismantled on the top surface of plasticizing section of thick bamboo (21) in one end of feed cylinder (232) keeping away from feeder hopper (231), the top opening part fixedly connected with apron (2311) of feeder hopper (231), the fixed inlet pipe that is equipped with vertical setting that wears of apron (2311), install driving piece (2312) and reduction gear (2313) on the top surface of apron (2311), the output of driving piece (2312) and the input fixed connection of reduction gear (2313), the output of reduction gear (2313) is fixedly connected with (2314), stirring piece (233) fixed connection is on the week side of (2314) stirring axle (2314), just stirring piece (233) are located in spiral feeding piece (234) and spiral feeding piece (234) are located in fixed feeding piece (234).

3. A plastic extrusion apparatus for cable molding as defined in claim 2, wherein: each stirring piece (233) comprises a stirring plate (2331) and a long connecting rod (2332) and a short connecting rod (2333) which are arranged up and down in parallel and are fixedly connected to the periphery of a stirring shaft (2314), one side, away from the stirring shaft (2314), of the stirring plate (2331) is close to the inner side wall of a feeding hopper (231), one side top, close to the stirring shaft (2314), of the stirring plate (2331) is fixedly connected with one end, away from the stirring shaft (2314), of the long connecting rod (2332), one side bottom, close to the stirring shaft (2314), of the stirring plate (2331) is fixedly connected with one end, away from the stirring shaft (2314), of the short connecting rod (2333), and the spiral feeding piece (234) is a feeding spiral blade fixedly connected to the periphery of the stirring shaft (2314).

4. A plastic extrusion apparatus for molding a cable according to claim 1, wherein: the pushing assembly (22) comprises a connecting box (221) fixed on the top surface of the mounting table (1) and positioned at one end of the plasticizing cylinder (21) far away from the connecting cylinder (12), a power piece (222) arranged on one side of the connecting box (221) far away from the plasticizing cylinder (21), a polygonal shaft (223) fixedly connected with the output end of the power piece (222) and a plurality of sections of spiral pushing pieces (224) sleeved on the circumference of the polygonal shaft (223) in sequence, one end of the polygonal shaft (223) far away from the power piece (222) penetrates through the connecting box (221) and extends into the plasticizing cylinder (21), spiral pieces positioned on the spiral pushing pieces (224) on the feeding section (214) and the homogenizing section (216) are continuous spiral pieces, and spiral pieces positioned on the spiral pushing pieces (224) on the melting section (215) are intermittent spiral pieces, and the continuous spiral pieces and the intermittent spiral pieces are arranged in sequence.

5. The plastic extrusion apparatus for molding a cable according to claim 4, wherein: the utility model discloses a screw extruder, including plasticizing section (21), plasticizing section (21) and homogenizing section (216) are located inside wall and be connected with spacing piece (217) between detachable between melting section (215) and homogenizing section, plasticizing section (21) are including two symmetrical setting and the work section of mutually concatenation, each equal threaded connection in inner wall both sides of work section has a plurality of lining poles (26), and a plurality of lining poles (26) that are located on same inside wall of same work section of thick bamboo are equidistant along same straight line distribution, each lining pole (26) are located between the adjacent flight on screw pushing piece (224).

6. The plastic extrusion apparatus for molding a cable according to claim 5, wherein: the plastic extruder is characterized in that the plasticizing cylinder (21) and the machine barrel of the plastic extruder (11) are detachably connected through connecting cylinders (12), each connecting cylinder is fixedly connected with connecting bodies (211) at two ends of each working cylinder, two connecting bodies (211) on the same end face of the plasticizing cylinder (21) are mutually spliced to form a flange plate, a connecting flange (121) is installed at one end, close to the plasticizing cylinder (21), of each connecting cylinder (12), and the connecting flange (121) and the flange plate which are mutually attached are detachably connected through hoops (25).

7. A plastic extrusion apparatus for molding a cable according to claim 1, wherein: the electric telescopic support is characterized in that two symmetrically arranged electric telescopic rods (13) are hinged to the top surface of the mounting table (1), the telescopic ends of the two electric telescopic rods (13) are hinged to the side surfaces of the two working cylinders, which are far away from each other, the supporting ends of the supporting mechanisms (3) are connected with the two working cylinders, the supporting mechanisms (3) are provided with two groups, and the electric telescopic rods (13) are located between the two groups of supporting mechanisms (3).

8. The plastic extrusion apparatus for molding a cable according to claim 5, wherein: each supporting mechanism (3) comprises a vertical plate (31) fixed on the top surface of the mounting table (1), a fixed shaft fixedly connected to the top of one side of the vertical plate (31), two connecting rings (33) movably sleeved on the fixed shaft, and supporting arms (34) which are arranged in a staggered mode and are respectively and fixedly connected to the peripheral sides of the two connecting rings (33), one end, far away from the connecting rings (33), of each supporting arm (34) is fixedly connected with the side face of the corresponding working cylinder, and one end, far away from the vertical plate (31), of the fixed shaft is detachably connected with a plugging plate (321) through a locking piece (32).

9. The plastic extrusion apparatus for molding a cable according to claim 8, wherein: be provided with spacing subassembly (4) that are used for spacing go-between (33) on the top surface of mount table (1), spacing subassembly (4) including support (41) fixed on mount table (1) top surface, with top fixed connection's of support (41 installation casing (42), set up link (43) in installation casing (42), bear frame (44) and cardboard (45) of being connected with link (43) bottom of being connected with the top of link (43), bayonet socket (331) corresponding with cardboard (45) position have been seted up on the week side of go-between (33), just the cross-sectional area of bayonet socket (331) is greater than the cross-sectional area of cardboard (45).

10. The plastic extrusion apparatus for molding a cable according to claim 9, wherein: the linkage part (43) comprises a fixed plate (431) fixedly connected to the bottom of the inner wall of the installation shell (42), two vertical rods (432) fixedly connected to the two ends of the top surface of the fixed plate (431), a reset part (433) sleeved on each vertical rod (432), a moving plate (434) connected in the installation shell (42) in a sliding manner and positioned above the fixed plate (431) and a linkage shaft (435) vertically penetrating through the moving plate (434) and the fixed plate (431), wherein the top ends of the two vertical rods (432) vertically penetrate through the moving plate (434) and are connected with the moving plate (434) in a sliding manner, the reset part (433) is positioned between the moving plate (434) and the fixed plate (431), the bottom end of the bearing frame (44) extends into the installation shell (42) and is fixedly connected with the top surface of the moving plate (434), the bearing end of the bearing frame (44) is abutted with the outer wall of the working cylinder, a curve groove (51) is formed in the peripheral side of the linkage shaft (435), the moving plate (435) and the linkage shaft (435) are fixedly connected with the sliding shaft (4342) in a sliding manner, the bottom end of the linkage shaft (435) is fixedly connected with the sliding shaft (4342) in a sliding manner, and the sliding manner is fixedly connected with the sliding shaft (4342) through the bottom end (4342), the bottom of the linkage shaft (435) is fixedly connected with the clamping plate (45).

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