CN113119432A - Cable outer coating production device with double-screw extrusion assembly - Google Patents
Cable outer coating production device with double-screw extrusion assembly Download PDFInfo
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- CN113119432A CN113119432A CN202110354723.1A CN202110354723A CN113119432A CN 113119432 A CN113119432 A CN 113119432A CN 202110354723 A CN202110354723 A CN 202110354723A CN 113119432 A CN113119432 A CN 113119432A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
- B29C48/525—Conical screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开了一种带双螺杆挤出组件的电缆外披料生产装置，包括密炼机、落料机以及挤出机；落料机位于密炼机与挤出机之间；密炼机的混炼仓位于落料机的落料斗的上方，落料机的出料口可拆卸连接于挤出机中部的一侧；挤出机设置有挤出机构，挤出机构包括平行异向设置的上螺杆与下螺杆，上螺杆与下螺杆分别设置有波浪形螺纹，上螺杆的波浪形螺纹与下螺杆的波浪形螺纹相互啮合。该电缆外披料生产装置采用密炼机直接对接落料机，落料机连接挤出机的流水线，减少多个中间设备，使生产装置的占地面积缩小，降低设备成本；落料机与挤出机采用合箍连接方式，便于拆卸清洁；挤出机采用侧面喂料，且不易发生漏胶现象，杜绝了不必要的材料浪费现象的发生。
The invention discloses a cable outer covering production device with a twin-screw extruding component, comprising an internal mixer, a blanking machine and an extruder; the blanking machine is located between the internal mixer and the extruder; the internal mixer The mixing bin is located above the blanking hopper of the blanking machine, and the discharge port of the blanking machine is detachably connected to one side of the middle of the extruder; the extruder is provided with an extrusion mechanism, and the extrusion mechanism includes parallel and different directions The upper screw rod and the lower screw rod are respectively provided with wave-shaped threads, and the wave-shaped threads of the upper screw rod and the wave-shaped threads of the lower screw rod mesh with each other. The cable outer material production device adopts an internal mixer to directly connect to the blanking machine, and the blanking machine is connected to the assembly line of the extruder, which reduces multiple intermediate equipment, reduces the area of the production device, and reduces equipment costs; The extruder adopts the hoop connection method, which is easy to disassemble and clean; the extruder adopts side feeding, and it is not easy to leak glue, which eliminates the occurrence of unnecessary material waste.
Description
Technical Field
The invention relates to the technical field of cable production, and particularly discloses a cable outer coating production device with a double-screw extrusion assembly.
Background
The electric wire and the cable have the important functions of transmitting energy and information, are known as blood vessels and nerves of the national economy, and have an important position in the national economy. With the rapid development of the communication industry, the communication industry creates huge market demands for the wire and cable industry, particularly the construction of the western large development, the cable material demands of China will also rapidly increase in the coming years, and especially the demand of high-end cable materials is large. The wire and cable production almost needs an insulating layer except steel-cored aluminum stranded wires and other spiral products, and the halogen-free material is a main insulating raw material for producing the wire and cable insulating layer. The existing units for producing the low-smoke halogen-free cable material are as follows: the production line comprises an internal mixer, a tipping bucket elevator, a conical double-screw feeder, a co-rotating double-screw extruder and a single-screw extruder, and the production line has the advantages of various required equipment, large occupied area and high cost; and the conical double-screw feeder and the extruder are connected in a nut splicing mode, so that the disassembly is inconvenient and the cleaning is realized, the glue leakage phenomenon is easy to occur, the cost waste is easy to cause, and the production environment is dirty.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a cable coating production device with a double-screw extrusion assembly.
In order to achieve the purpose, the device for producing the cable outer coating with the double-screw extrusion assembly comprises an internal mixer, a blanking machine and an extruder; the blanking machine is positioned between the internal mixer and the extruder; the mixing bin of the internal mixer is positioned above the blanking hopper of the blanking machine, and the discharge port of the blanking machine is detachably connected to one side of the middle part of the extruder; the extruder is provided with an extruding mechanism, the extruding mechanism comprises an upper screw rod and a lower screw rod, the upper screw rod is parallel to the lower screw rod, the upper screw rod and the lower screw rod are respectively provided with wave-shaped threads, the wave-shaped threads of the upper screw rod are meshed with the wave-shaped threads of the lower screw rod, and the spiral direction of the wave-shaped threads of the upper screw rod is opposite to that of the wave-shaped threads of the lower screw rod.
Specifically, the blanking machine comprises a conical double-screw feeder and a blanking hopper, the top of the conical double-screw feeder is provided with a feeding hole, the blanking hopper is arranged on the feeding hole and is positioned below a bin opening when the mixing bin is turned, and the conical double-screw feeder is provided with a discharge hole.
Specifically, the extruder further comprises a speed reducer, a power component, a rack and a die head, wherein the power component is connected to the speed reducer, the speed reducer is connected to the extruding mechanism, the extruding mechanism is connected to the die head, and the rack is used for mounting the extruding mechanism and the speed reducer.
Specifically, the upper screw comprises a screw handle, a working section and a screw head, the screw handle is connected to the speed reducer, the screw head is installed at the end part, close to the die head, of the upper screw, and the working section is located between the screw handle and the screw head.
Specifically, the working section of going up the screw rod includes feeding section, plastify section and homogenization section, and the feeding section is close to the setting of screw rod handle, and the homogenization section is close to the setting of screw rod head, and the plastify section is wave screw thread and lies in between feeding section and the homogenization section, still is provided with the compression section between plastify section and the feeding section, and the one end that the compression section was kept away from to the feeding section still is provided with the leak protection section, the pitch of leak protection section, the pitch of feeding section, the pitch of compression section and the pitch diverse of homogenization section.
Specifically, the extrusion mechanism further comprises a screw barrel, the screw barrel comprises a first sealing barrel, a second sealing barrel and a feeding barrel, one end of the feeding barrel is connected to the connecting barrel of the speed reducer through a fastener, the first sealing barrel is connected to the other end of the feeding barrel through the fastener, one end of the second sealing barrel is connected to one end, away from the feeding barrel, of the first sealing barrel through the fastener, and the other end of the second sealing barrel is connected to the die head through the fastener.
Specifically, the feeding cylinder is sleeved outside the feeding section of the screw group, the first sealing cylinder is sleeved outside the compression section and the plasticizing section of the screw group, and the second sealing cylinder is sleeved outside the plasticizing section and the homogenizing section of the screw group.
Specifically, one side of the feeding cylinder is provided with a feeding hole, and the feeding hole is detachably connected to a discharging hole of the conical double-screw feeder and used for feeding an external object into the extruder for processing.
Specifically, a cylinder cover is sleeved outside the first sealing cylinder and the second sealing cylinder, and a cylinder cover support is connected below the cylinder cover.
The invention has the beneficial effects that: the cable outer coating production device with the double-screw extrusion component is characterized in that during production, an internal mixer plastifies and mixes materials, the plastified and mixed materials are poured into a blanking hopper of a blanking machine from a mixing bin in a turnover mode, and then enter a conical double-screw feeder to feed the extruder, the conical double-screw feeder is connected to a feed inlet on one side of the extruder in a hoop combining mode, the double-screw extrusion component arranged in the extruder extrudes and shears the materials, wave-shaped threads on the double-screw extrusion component periodically change to enable a side gap formed by two meshed counter screws to be changed from big to small, and when the side gap is changed from big to small, the materials are subjected to strong extrusion and strong cutting effects, absorb a large amount of mechanical energy and perform energy conversion; when the side gap is changed from small to large, the material is relaxed, the energy is balanced, the temperatures are homogenized, and the material is finally extruded through a die head. The production device for the cable outer coating adopts the internal mixer to directly butt joint the blanking machine, and the blanking machine is connected with the production line of the extruder, so that a plurality of intermediate devices are reduced, the floor area of the production device is reduced, and the equipment cost is reduced; the blanking machine and the extruder are connected in a hoop-closing manner, so that the disassembly and the cleaning are convenient; the extruder adopts side feeding, so that the material is better heated, the glue leakage phenomenon is not easy to occur, and the unnecessary material waste phenomenon is avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the blanking machine of the present invention;
FIG. 3 is a schematic perspective view of the extruder of the present invention;
FIG. 4 is a schematic perspective view of an extruding mechanism of the extruder of the present invention;
fig. 5 is a schematic perspective view of a twin screw assembly of the extruder of the present invention.
The reference numerals include:
1-internal mixer 2-blanking machine 3-extruder
11-mixing bin 21-blanking hopper 22-conical double-screw feeder
30-cylinder cover 31-upper screw 32-lower screw
33-speed reducer 34-power part 35-frame
36-die head 37-first sealing cylinder 38-second sealing cylinder
39-feed cylinder 221-feed inlet 222-discharge outlet
311-screw shank 312-screw head 313-feeding section
314-plasticizing section 315-homogenizing section 316-compressing section
317, a leakage-proof section 391, a feed inlet 301 and a cylinder cover bracket.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Referring to fig. 1 to 5, the apparatus for producing a cable coating material with a twin-screw extrusion assembly according to the present invention includes an internal mixer 1, a blanking machine 2 and an extruder 3; the blanking machine 2 is positioned between the internal mixer 1 and the extruder 3; the mixing bin 11 of the internal mixer 1 is positioned above the blanking hopper 21 of the blanking machine 2, and the blanking machine 2 is detachably connected to one side of the middle part of the extruder 3; the extruder 3 is provided with an extruder 3 mechanism, the extruder 3 mechanism comprises an upper screw 31 and a lower screw 32, the upper screw 31 is parallel to the lower screw 32, the upper screw 31 and the lower screw 32 are respectively provided with wave-shaped threads, the wave-shaped threads of the upper screw 31 are meshed with the wave-shaped threads of the lower screw 32, and the spiral direction of the wave-shaped threads of the upper screw 31 is opposite to the spiral direction of the wave-shaped threads of the lower screw 32. The cable outer coating production device with the double-screw extrusion assembly adopts the internal mixer 1 to directly butt joint the blanking machine 2, and the blanking machine 2 is connected with the production line of the extruder 3, so that a plurality of intermediate devices are reduced, the floor area of the production device is reduced, and the equipment cost is reduced; the wavy threads on the double-screw extrusion assembly are periodically changed, so that a side gap formed by two meshed different-direction screws is changed from big to small, and when the side gap is changed from big to small, the material is subjected to strong extrusion and strong shearing, so that a large amount of mechanical energy is absorbed and energy conversion is carried out; when the side gap is changed from small to large, the material is relaxed, the energy is balanced, and the temperatures are homogenized. The internal mixer 1 is prior art and will not be described herein.
Referring to fig. 2, the blanking machine 2 includes a conical twin-screw feeder 22 and a blanking hopper 21, a feeding port 221 is provided at the top of the conical twin-screw feeder 22, the blanking hopper 21 is installed on the feeding port 221 and is located below the bin port when the mixing bin 11 is turned over, and a discharge port 222 is provided in the conical twin-screw feeder 22. The mixing bin 11 is turned upside down to pour the material into the blanking hopper 21, the material enters the conical double-screw feeder 22 through the feeding port 221 and is fed by double-screw stirring, and the material is fed into the extruder 3 from the discharge port 222.
Referring to fig. 3, the extruder 3 further includes a speed reducer 33, a power unit 34, a frame 35 and a die head 36, the power unit 34 is connected to the speed reducer 33, the speed reducer 33 is connected to the extrusion mechanism, the extrusion mechanism is connected to the die head 36, and the frame 35 is used for mounting the extrusion mechanism and the speed reducer 33. During production, the power component 34 provides power to drive the extrusion mechanism to perform rotary extrusion through the speed reducer 33, and the material reaches the die head 36 through the extrusion mechanism and is finally extruded from the die head 36. The reducer 33 is a conventional one, and the specific structure and principle thereof can be referred to in patent document No. CN210308939U (or CN103895209B), which is not described herein again. For the details of the structure and principle of the die head 36, please refer to the patent document with the serial number CN210061949U, which is not described herein again.
Referring to fig. 5, the upper screw 31 includes a screw handle 311, a working section and a screw head 312, the screw handle 311 is connected to the reducer 33, the screw head 312 is installed at the end of the upper screw 31 near the die head 36, and the working section is located between the screw handle 311 and the screw head 312. The upper screw 31 is hollow, the screw head 312 is used for blocking the central hole of the upper screw 31 to prevent the material from entering the interior of the upper screw, and the lower screw 32 has a structure consistent with that of the upper screw 31, and also has the screw handle 311 and the screw head 312 which have the same function.
Referring to fig. 5, the working section of the upper screw 31 includes a feeding section 313, a plasticizing section 314 and a homogenizing section 315, the feeding section 313 is disposed near the screw handle 311, the homogenizing section 315 is disposed near the screw head 312, the plasticizing section 314 is a wave-shaped screw and is disposed between the feeding section 313 and the homogenizing section 315, a compressing section 316 is further disposed between the plasticizing section 314 and the feeding section 313, a leakage-proof section 317 is further disposed at one end of the feeding section 313 far from the compressing section 314, and a screw pitch of the leakage-proof section 317, a screw pitch of the feeding section 313, a screw pitch of the compressing section 316 and a screw pitch of the homogenizing section 315 are different. In the production process, the upper screw 31 and the lower screw 32 of the screw group are engaged and rotated in opposite directions to extrude and shear the material, the material moves from the feeding section 313 to the compression section 316 along with the extrusion and the shear of the screws to be fully mixed, then moves from the compression section 316 to the plasticizing section 314 to be compressed, and the material enters the homogenizing section 315 after passing through the plasticizing section 314 and is finally extruded through the die head 36.
Referring to fig. 4, the extruding mechanism further includes a screw barrel including a first sealing barrel 37, a second sealing barrel 38 and a feeding barrel 39, one end of the feeding barrel 39 is connected to the connecting barrel of the speed reducer 33 via a fastener, the first sealing barrel 37 is connected to the other end of the feeding barrel 39 via a fastener, one end of the second sealing barrel 38 is connected to one end of the first sealing barrel 37 far from the feeding barrel 39 via a fastener, and the other end of the second sealing barrel 38 is connected to the die head 36 via a fastener. In this embodiment, the fastener is the C type clamping, but utilize C type clamping to be connected convenient to detach cleanness between the screw section of thick bamboo and between screw section of thick bamboo and reduction gear 33, the die head 36, and can reach better fastening effect.
Referring to fig. 4 to 5, the feeding cylinder 39 is sleeved outside the feeding section 313 of the screw set, the first sealing cylinder 37 is sleeved outside the compression section 316 and the plasticizing section 314 of the screw set, the second sealing cylinder 38 is sleeved outside the plasticizing section 314 and the homogenizing section 315 of the screw set, and the first sealing cylinder 37 and the second sealing cylinder 38 provide an operating space for the extrusion process of the screw set.
Referring to fig. 1 and 3, a feed inlet 391 is disposed at one side of the feed cylinder 39, and the feed inlet 391 is detachably connected to the discharge port 222 of the conical twin-screw feeder 22 and is used for feeding the external objects into the extruder 3 for processing. The feed inlet 391 of extruder 3 sets up in one side and adopts the connected mode that closes the hoop with blanking machine 2, makes the material be heated better, can effectively avoid the phenomenon of leaking gluey to take place, and convenient to detach is clean.
Referring to fig. 3 to 4, a cylinder cover 30 is sleeved outside each of the first sealing cylinder 37 and the second sealing cylinder 38, a cylinder cover bracket 301 is connected below the cylinder cover 30, and a water cooling system is arranged at the bottom of the cylinder cover bracket 301 near one end of the die head 36 and used for cooling the extruded material; one side of the feeding barrel 39 without the feeding port 391 is provided with a vacuum seat, the vacuum seat is used for connecting a vacuum-pumping system, and the vacuum-pumping system is used for reducing moisture and low volatile matters of external objects. Due to the particularity of the low-smoke halogen-free material, large heat is generated due to friction in the extrusion process, and the water cooling system is used for cooling the extruded material. The vacuum pumping system is prior art and will not be described herein.
In the production process of the cable coating production device with the double-screw extrusion component, plasticating and mixing are carried out on materials by the internal mixer 1, the plasticated and mixed materials are overturned from the mixing bin 11 and poured into the blanking hopper 21 of the blanking machine 2, so that the materials enter the conical double-screw feeder 22 to feed the extruder 3, the conical double-screw feeder is connected to the feeding hole 391 at one side of the extruder 3 in a hooping mode, the double-screw extrusion component arranged in the extruder 3 extrudes and shears the materials, the periodic change of the wavy threads on the double-screw extrusion component enables the side gap formed by two meshed incongruous screws to be changed from big to small, and when the side gap is changed from big to small, the materials are subjected to strong extrusion and strong shearing, and absorb a large amount of mechanical energy and carry out energy conversion; as the side gap gets smaller and larger, the material relaxes, the energy is balanced, the temperatures are homogenized, and the material is finally extruded through the die 36.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354723.1A CN113119432A (en) | 2021-03-31 | 2021-03-31 | Cable outer coating production device with double-screw extrusion assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354723.1A CN113119432A (en) | 2021-03-31 | 2021-03-31 | Cable outer coating production device with double-screw extrusion assembly |
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| CN113119432A true CN113119432A (en) | 2021-07-16 |
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| CN202110354723.1A Pending CN113119432A (en) | 2021-03-31 | 2021-03-31 | Cable outer coating production device with double-screw extrusion assembly |
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| CN2177695Y (en) * | 1993-07-12 | 1994-09-21 | 北京化工学院 | Non-meshing counter-rotating double corrugated twin-screw |
| CN2925844Y (en) * | 2006-05-19 | 2007-07-25 | 林军 | Reinforced-fibre thermoplastic double-screw extruder |
| CN101875232A (en) * | 2009-12-10 | 2010-11-03 | 北京化工大学 | Triangular arrangement of conical three-screw extruders |
| CN101767430A (en) * | 2010-03-16 | 2010-07-07 | 昆山科信橡塑机械有限公司 | Combined type machine set integrating functions of banburying, feeding and extruding into whole |
| CN102615800A (en) * | 2012-03-27 | 2012-08-01 | 昆山科信橡塑机械有限公司 | Sheet forming extrusion unit |
| US20170165872A1 (en) * | 2015-12-11 | 2017-06-15 | The Goodyear Tire & Rubber Company | Modified tire sealant mixing device |
| CN205364288U (en) * | 2016-03-11 | 2016-07-06 | 成都卡乐福高分子材料有限公司 | Automatic change plastic particles production system |
| CN206066912U (en) * | 2016-07-26 | 2017-04-05 | 华南理工大学 | Conical double screw extruder with dynamic continuous mixing function |
| CN106378919A (en) * | 2016-08-31 | 2017-02-08 | 玉石塑粉有限公司 | Powder coating bonding extruder and operating method thereof |
| CN215589892U (en) * | 2021-03-31 | 2022-01-21 | 广东三优聚合物装备有限公司 | A cable outer covering production device with twin-screw extrusion assembly |
| CN215589891U (en) * | 2021-03-31 | 2022-01-21 | 广东三优聚合物装备有限公司 | Double-screw extruder with wave-shaped threads |
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