CN205185252U - Positive displacement extruding machine of wire and cable sheath - Google Patents
Positive displacement extruding machine of wire and cable sheath Download PDFInfo
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- CN205185252U CN205185252U CN201520813390.4U CN201520813390U CN205185252U CN 205185252 U CN205185252 U CN 205185252U CN 201520813390 U CN201520813390 U CN 201520813390U CN 205185252 U CN205185252 U CN 205185252U
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Abstract
The utility model relates to a positive displacement extruding machine of wire and cable sheath, the unsatisfied electric automobile of wire and cable sheath density, intensity and toughness who has solved the existing equipment extrusion molding technical problem that the stake required with the cable that charges, this extruding machine including the feed cylinder, extrusion molding parts, the injection that feed through in proper order chew with the extrusion molding mould, the feed cylinder includes a loading hopper and a melt section of thick bamboo, the extrusion molding part is the positive displacement, including the component that encloses into the three fixed geometry of having of certain enclosure space, through two components in the three component that has a fixed geometry are rotatory messenger constantly the volume of enclosure space is constantly changeable, incorporates fused sheath plastics when the volume changes from small to big in, applys direct stress to fused sheath plastics when the volume when diminishing greatly, extrudes its extrusion, exhaust, plastify, transport. This extruding machine increased the sheath density, improved sheath intensity and toughness, shortened hot mechanical effect flow length, reduced equipment length.
Description
Technical field
The utility model relates to the plastic sheath processing technique field of electric wire, particularly relates to a kind of positive displacement extruding machine of electric wire and cable jacket.
Background technology
The conductor wire core of general electric wire has one deck insulating sheath outward in order to play protection and insulating effect, and the most frequently used sheath material is plastics, for the resistant to elevated temperatures cable of General Requirements, then adopts elastomeric material to make sheath.
For the sheath of plastic material, plastic material is coated to outside conductor wire core, existing method will extrude the conductor wire core periphery being wrapped in continuous moving after raw materials for plastics production heating and melting with screw extruder, and cooling curing sizing immediately, forms firmly insulating sheath in conductor wire core periphery.Screw extruder comprises barrel, screw sleeve and nozzle, the screw rod of the built-in rotation of screw sleeve, sleeve outer wall there is electric calorifie installation, the raw materials for plastics production entered from barrel are by electric calorifie installation fusion plastification, by the screw extruding rotated, friction, towing, advanced by the port of export of sleeve simultaneously and be transported to nozzle, melt (plastics namely after fusion plastification) carrying capacity is from the frictional force of melt and surface of the work, thermomechanical effect flow process is longer, need to consume a large amount of mechanical energy, and, the frictional force of bath surface is delivered to its inside with the form of shear stress, be unfavorable for the discharge of the gas brought into from barrel, even may produce secondary space, affect the compactness of sizing material, reduce intensity and the toughness of sheath.The particularly charging pile private cable of electric automobile, requires that it possesses the performance of resistance to automobile spreading, resistance to frequent bending, and therefore higher to the intensity of cable cover(ing), toughness reguirements, traditional extrusion apparatus is difficult to meet its processing request.
For solving the problem, existing Patents is (as name is called " high polymer material plasticizing transportation method and equipment based on draft flowing deformation ", the patent No. is 200810026054.X), propose a kind of new method and apparatus, by applying direct stress with the change of volume of equipment to material, make it to be compacted in course of conveying, exhaust, fusion plastification, but the equipment of the positive displacement that this patent provides change is traditional vane pump, the geometry be combined to form of its blade and rotor changes constantly in rotation, can not be " determination ", if " determination ", necessarily blade is fixed in rotor slot, can not rotate, volume can not change, therefore existing scheme on-positive displacement extrusion molding.In addition, in fact this vane pump is common in gas or the lower liquid of viscosity, as water and oils, the lipid higher for viscosity and melt plastic cement are inapplicable, particularly under the condition of slow-speed of revolution running, because the change of its volume realizes by blade sliding extension in rotor slot, sealing between adjacent chamber is compressed by the laminating between blade and stator inner wall to realize, this thrust comes from the centrifugal force of blade rotary, the pump discharge of conveying sizing material is usually very little, rotating speed is very low, its rotary centrifugal force is very small, be not enough to overcome blade and rotor slot, the resistance of thickness sizing material between stator wall, effective sealing can not be formed, namely this equipment practicality is not high.
Visible, exist in prior art: the electric wire and cable jacket density, intensity and the toughness that adopt existing scheme extrusion molding to obtain are not enough to meet the technical problem of electric automobile charging pile cable needs.
Utility model content
The electric wire and cable jacket density, intensity and the toughness that obtain for the existing scheme extrusion molding of the employing existed in prior art are not enough to the technical problem meeting electric automobile charging pile cable needs, provide a kind of positive displacement extruding machine of electric wire and cable jacket, achieve real positive displacement extrusion molding and conveying, shorten thermomechanical effect flow process, save the consumption of energy, effectively increase the density of sheath, improve sheath intensity and toughness, be enough to meet electric automobile charging pile cable needs.
The utility model provides a kind of positive displacement extruding machine of electric wire and cable jacket, comprising: the barrel be communicated with successively, extrusion molding parts, injection mouth and extruded mould;
Described barrel comprises the melt cylinder of loading hopper and band heating; Described extrusion molding parts are positive displacement, comprise the component that three of surrounding certain enclosure space have fixed geometry, having in the component of fixed geometry two components constantly to rotate by described three makes the volume of described enclosure space constantly change, the sheathed plastic of melting is included in when volume changes from small to big, when volume from large to small time direct stress is applied to the sheathed plastic of melting, the sheathed plastic of described melting is extruded, is vented, plastics processing, and after the treatment by described injection mouth and described extruded mould conveying extrude.
Optionally, three of described extrusion molding parts have the component of fixed geometry comprise stator and be arranged on described stator inner chamber in and intermeshing power rotor and driven rotor; The inner chamber of described stator and the gabarit of described power rotor and described driven rotor surround enclosure space, and in the process that described power rotor drives described driven rotor constantly to rotate, the volume of described enclosure space constantly changes thereupon; At the position that described volume increases, the sidewall of described stator is provided with the charging aperture be communicated with described melt cylinder, for including the sheathed plastic of melting in, at the position that described volume reduces, the sidewall of described stator is provided with the extrusion be communicated with described injection mouth, for carrying the sheathed plastic extruding described melting to described extruded mould, to make described extruded mould, the sheathed plastic of described melting being wrapped in electric wire periphery and forming sheath; Wherein, be transported at the position increased from described volume in the process at the position that described volume reduces, the sheathed plastic of described melting extruded, is vented, plastics processing.
Optionally, the inner chamber of the described stator cylinder die cavity that is power rotor described in envelope and described driven rotor gabarit.
Optionally, described power rotor and described driven rotor are the active kidney-shaped rotor of conjugation and driven kidney-shaped rotor, and described active kidney-shaped rotor drives the synchronized reverse rotation of described driven kidney-shaped rotor by a pair of identical intermeshing gear pair.
Optionally, the molded line forming described active kidney-shaped rotor and described driven kidney-shaped rotor is made up of the curve of the round and smooth connection of multistage, comprises circular arc line, involute and/or cycloid; The inner chamber of described stator is the cylinder die cavity of initiatively kidney-shaped rotor and described driven kidney-shaped rotor gabarit described in envelope, and described cylinder die cavity is made up of the face of cylinder that two sections are greater than semicircle.
Optionally, described power rotor and described driven rotor are the wildhaber-novikov gear of a pair intermeshing conjugation, comprise driving gear and are driven the driven gear reversely rotated by described driving gear.
Optionally, described stator is ellipsoid cylinder stator, the cylinder die cavity that the inner chamber of described stator is driving gear described in envelope and described driven gear gabarit, described cylinder die cavity is made up of two sections of semi-cylindricals and two sections of planes, and described two sections of planes are connected between described two sections of semi-cylindricals.
The one or more technical schemes provided in the utility model, at least have following technique effect or advantage:
Real positive displacement extrusion molding and conveying is achieved by adopting simple electric wire and cable jacket extrusion apparatus, shorten thermomechanical effect flow process, save the consumption of energy, effectively increase the density of sheath, improve sheath intensity and toughness, processing and manufacturing for charging electric vehicle cable provides advanced sheath process equipment, for promoting that the universal of new-energy automobile has made contribution.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of positive displacement extruding machine schematic cross-section that Fig. 1 provides for the utility model embodiment;
A kind of rotor of positive displacement extruding machine that Fig. 2 provides for the utility model embodiment and the structural representation of gear pair;
The rotor of the positive displacement extruding machine that Fig. 3 provides for the utility model embodiment is the structural representation of the kidney-shaped rotor of conjugation;
The rotor of the positive displacement extruding machine that Fig. 4 provides for the utility model embodiment is the structural representation of the wildhaber-novikov gear of conjugation.
Detailed description of the invention
The utility model embodiment is by providing a kind of positive displacement extruding machine of electric wire and cable jacket, solve the technical problem that the electric wire and cable jacket density of the existing scheme extrusion molding acquisition of the employing existed in prior art, intensity and toughness are not enough to meet electric automobile charging pile cable needs, achieve real positive displacement extrusion molding and conveying, shorten thermomechanical effect flow process, save the consumption of energy, effectively increase the density of sheath, improve sheath intensity and toughness, be enough to meet electric automobile charging pile cable needs.
The technical scheme of the utility model embodiment is for solving the problems of the technologies described above, and general thought is as follows:
The utility model provides a kind of positive displacement extruding machine of electric wire and cable jacket, comprising: the barrel be communicated with successively, extrusion molding parts, injection mouth and extruded mould; Described barrel comprises the melt cylinder of loading hopper and band heating; Described extrusion molding parts are positive displacement, comprise the component that three of surrounding certain enclosure space have fixed geometry, having in the component of fixed geometry two components constantly to rotate by described three makes the volume of described enclosure space constantly change, the sheathed plastic of melting is included in when volume changes from small to big, when volume from large to small time direct stress is applied to the sheathed plastic of melting, the sheathed plastic of described melting is extruded, is vented, plastics processing, and after the treatment by described injection mouth and described extruded mould conveying extrude.
Visible, in the utility model embodiment, real positive displacement extrusion molding and conveying is achieved by adopting simple electric wire and cable jacket extrusion apparatus, shorten thermomechanical effect flow process, save the consumption of energy, effectively increase the density of sheath, improve sheath intensity and toughness, processing and manufacturing for charging electric vehicle cable provides advanced sheath process equipment, for promoting that the universal of new-energy automobile has made contribution.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the utility model embodiment and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the utility model embodiment and embodiment can combine mutually.
As shown in Figure 1, the utility model provides a kind of positive displacement extruding machine of electric wire and cable jacket, comprising: the barrel 1 be communicated with successively, extrusion molding parts 2, injection mouth 3 and extruded mould 4;
Barrel 1 comprises the melt cylinder 12 of loading hopper 11 and band heating 121; Extrusion molding parts 2 are positive displacement, comprise the component that three of surrounding certain enclosure space have fixed geometry, having in the component of fixed geometry two components constantly to rotate by described three makes the volume of described enclosure space constantly change, the sheathed plastic of melting is included in when volume changes from small to big, when volume from large to small time direct stress is applied to the sheathed plastic of melting, the sheathed plastic of described melting is extruded, is vented, plastics processing, and after the treatment by injection mouth 3 and extruded mould 4 conveying extrude.
Concrete, three of extrusion molding parts 2 have the component of fixed geometry to comprise stator 21 and to be arranged in the inner chamber of stator 21 and intermeshing power rotor 22 and driven rotor 23; The inner chamber of stator 21 and the gabarit of power rotor 22 and driven rotor 23 surround enclosure space, and in the process that power rotor 22 drives driven rotor 23 constantly to rotate, the volume of described enclosure space constantly changes thereupon; At the position that described volume increases, the sidewall of stator 21 is provided with the charging aperture 211 be communicated with melt cylinder 12, for including the sheathed plastic of melting in, at the position that described volume reduces, the sidewall of stator 21 is provided with the extrusion 212 be communicated with injection mouth 3, for carrying the sheathed plastic extruding described melting to extruded mould 4, to make extruded mould 4, the sheathed plastic of described melting being wrapped in electric wire periphery and forming sheath; Wherein, be transported at the position increased from described volume in the process at the position that described volume reduces, two rotor 22,23 rotations can extrude the sheathed plastic of described melting, be vented, plastics processing.
Concrete, the inner chamber of stator 21 is the cylinder die cavity of envelope power rotor 22 and driven rotor 23 gabarit.
In a kind of detailed description of the invention of the application, as shown in Figure 1, power rotor 22 and driven rotor 23 are the active kidney-shaped rotor 22a of conjugation and driven kidney-shaped rotor 23a.Then, as shown in Figure 2, be the schematic cross-section that the extruding machine of positive displacement shown in Fig. 1 is cut open along A-A direction, initiatively kidney-shaped rotor 22a drives the synchronized reverse rotation of driven kidney-shaped rotor 23a by a pair of identical intermeshing gear pair 24.This positive displacement extruding machine also comprises and being connected and the motor 25 driving it to rotate with active kidney-shaped rotor 22a, gear pair 24 comprises the first gear 241 be connected with active kidney-shaped rotor 22a and the second gear 242 be connected with driven kidney-shaped rotor 23a, motor 25 is also connected with the first gear 241 and drives itself and active kidney-shaped rotor 22a synchronous axial system, to make the second gear 242 link, thus driven kidney-shaped rotor 23a is driven to rotate.Concrete, the molded line forming initiatively kidney-shaped rotor 22a and driven kidney-shaped rotor 23a is made up of, comprising circular arc line, involute and/or cycloid the curve of the round and smooth connection of multistage.As shown in Figure 3, the inner chamber of stator 21 is the cylinder die cavity of envelope active kidney-shaped rotor 22a and driven kidney-shaped rotor 23a gabarit, and described cylinder die cavity is made up of the face of cylinder 21-1,21-2 that two sections are greater than semicircle.The junction that charging aperture 211 and extrusion 212 are arranged on two sections of faces of cylinder is optimal layout.
When power rotor 22 and driven rotor 23 are the active kidney-shaped rotor 22a of conjugation and driven kidney-shaped rotor 23a, the operation principle of this positive displacement extruding machine is: initiatively kidney-shaped rotor 22a counterclockwise rotates, driven kidney-shaped rotor 23a synchronized rotation clockwise, be in as shown in figures 1 and 3 position time, namely the driven upper end maximum radius point of kidney-shaped rotor 23a starts to contact with the inner chamber profile of stator 21, stator 21, initiatively kidney-shaped rotor 22a and driven kidney-shaped rotor 23a closes out a cavity c above active kidney-shaped rotor 22a, now the volume of cavity c is minimum, along with the continuous rotation of active kidney-shaped rotor 22a and driven kidney-shaped rotor 23a, the volume of cavity c constantly increases, in hopper 11, the sheathed plastic of melting is inhaled in cavity c, and proceed in the enclosed cavity d below active kidney-shaped rotor 22a and driven kidney-shaped rotor 23a along with the continuous rotation of two rotor 22a, 22b, when cavity d volume constantly reduces, giving sheathed plastic makes it constantly be compacted with compression, eliminate bubble wherein, be finally injected in sheath extruded mould 40 from injection mouth 3 injection.Motor 25 is servomotor, can as required timely adjustment rotating speed to control the flow of plastic cement penetrated.
In the another kind of detailed description of the invention of the application, as shown in Figure 4, power rotor 22 and driven rotor 23 are the wildhaber-novikov gear of a pair intermeshing conjugation, comprise driving gear 22b and are driven the driven gear 23b reversely rotated by driving gear 22b.Stator 21 is ellipsoid cylinder stator, the inner chamber of stator 21 is the cylinder die cavity of envelope driving gear 22b and driven gear 23b gabarit, described cylinder die cavity is made up of two sections of semi-cylindricals 21-3,21-4 and two sections of plane 21-5,21-6, and described two sections of plane 21-5,21-6 are connected between a sidepiece of two sections of semi-cylindricals 21-3,21-4.The structure of present embodiment and above-mentioned Fig. 1 illustrated embodiment distinguishes the shape and structure being only two rotors, and its operation principle is similar, does not repeat one by one here.Certainly in specific implementation process, shown in Fig. 4 using the wildhaber-novikov gear of a pair intermeshing conjugation as rotor, rotor profile processing technology is good, available standards wildhaber-novikov gear, technology and equipment is ripe, and structure is simple, design system is hanked low, and precision easily ensures, can obtain good crudy.
In sum, implement the positive displacement extruding machine of a kind of electric wire and cable jacket of the present utility model, real positive displacement extrusion molding and conveying is achieved with simple electric wire and cable jacket extrusion apparatus, shorten thermomechanical effect flow process, save the consumption of energy, effectively increase the density of sheath, improve sheath intensity and toughness, processing and manufacturing for charging electric vehicle cable provides advanced sheath process equipment, for promoting that the universal of new-energy automobile has made contribution.
Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. a positive displacement extruding machine for electric wire and cable jacket, described positive displacement extruding machine comprises: the barrel be communicated with successively, extrusion molding parts, injection mouth and extruded mould; It is characterized in that:
Described barrel comprises the melt cylinder of loading hopper and band heating; Described extrusion molding parts are positive displacement, comprise the component that three of surrounding certain enclosure space have fixed geometry, having in the component of fixed geometry two components constantly to rotate by described three makes the volume of described enclosure space constantly change, the sheathed plastic of melting is included in when volume changes from small to big, when volume from large to small time direct stress is applied to the sheathed plastic of melting, the sheathed plastic of described melting is extruded, is vented, plastics processing, and after the treatment by described injection mouth and described extruded mould conveying extrude.
2. positive displacement extruding machine as claimed in claim 1, is characterized in that, three of described extrusion molding parts have the component of fixed geometry to comprise stator and to be arranged in the inner chamber of described stator and intermeshing power rotor and driven rotor; The inner chamber of described stator and the gabarit of described power rotor and described driven rotor surround enclosure space, and in the process that described power rotor drives described driven rotor constantly to rotate, the volume of described enclosure space constantly changes thereupon; At the position that described volume increases, the sidewall of described stator is provided with the charging aperture be communicated with described melt cylinder, for including the sheathed plastic of melting in, at the position that described volume reduces, the sidewall of described stator is provided with the extrusion be communicated with described injection mouth, for carrying the sheathed plastic extruding described melting to described extruded mould, to make described extruded mould, the sheathed plastic of described melting being wrapped in electric wire periphery and forming sheath; Wherein, be transported at the position increased from described volume in the process at the position that described volume reduces, the sheathed plastic of described melting extruded, is vented, plastics processing.
3. positive displacement extruding machine as claimed in claim 2, is characterized in that, the cylinder die cavity that the inner chamber of described stator is power rotor described in envelope and described driven rotor gabarit.
4. positive displacement extruding machine as claimed in claim 3, it is characterized in that, described power rotor and described driven rotor are the active kidney-shaped rotor of conjugation and driven kidney-shaped rotor, and described active kidney-shaped rotor drives the synchronized reverse rotation of described driven kidney-shaped rotor by a pair of identical intermeshing gear pair.
5. positive displacement extruding machine as claimed in claim 4, it is characterized in that, the molded line forming described active kidney-shaped rotor and described driven kidney-shaped rotor is made up of the curve of the round and smooth connection of multistage, comprises circular arc line, involute and/or cycloid; The inner chamber of described stator is the cylinder die cavity of initiatively kidney-shaped rotor and described driven kidney-shaped rotor gabarit described in envelope, and described cylinder die cavity is made up of the face of cylinder that two sections are greater than semicircle.
6. positive displacement extruding machine as claimed in claim 2, it is characterized in that, described power rotor and described driven rotor are the wildhaber-novikov gear of a pair intermeshing conjugation, comprise driving gear and are driven the driven gear reversely rotated by described driving gear.
7. positive displacement extruding machine as claimed in claim 6, it is characterized in that, described stator is ellipsoid cylinder stator, the cylinder die cavity that the inner chamber of described stator is driving gear described in envelope and described driven gear gabarit, described cylinder die cavity is made up of two sections of semi-cylindricals and two sections of planes, and described two sections of planes are connected between described two sections of semi-cylindricals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813390.4U CN205185252U (en) | 2015-10-20 | 2015-10-20 | Positive displacement extruding machine of wire and cable sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813390.4U CN205185252U (en) | 2015-10-20 | 2015-10-20 | Positive displacement extruding machine of wire and cable sheath |
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| Publication Number | Publication Date |
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| CN205185252U true CN205185252U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520813390.4U Active CN205185252U (en) | 2015-10-20 | 2015-10-20 | Positive displacement extruding machine of wire and cable sheath |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584802A (en) * | 2015-10-20 | 2017-04-26 | 深圳市联嘉祥科技股份有限公司 | Plastic extruding method for wire and cable sheath and volumetric plastic extruding machine |
| CN108855507A (en) * | 2018-06-27 | 2018-11-23 | 陈荣华 | A kind of grinding of raising coarse granule feed rolls grinding device |
-
2015
- 2015-10-20 CN CN201520813390.4U patent/CN205185252U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584802A (en) * | 2015-10-20 | 2017-04-26 | 深圳市联嘉祥科技股份有限公司 | Plastic extruding method for wire and cable sheath and volumetric plastic extruding machine |
| WO2017067298A1 (en) * | 2015-10-20 | 2017-04-27 | 深圳市联嘉祥科技股份有限公司 | Wire and cable sheath extrusion method and positive displacement extruder |
| CN106584802B (en) * | 2015-10-20 | 2019-03-26 | 深圳市联嘉祥科技股份有限公司 | A kind of extrusion process and positive displacement extruding machine of electric wire and cable jacket |
| CN108855507A (en) * | 2018-06-27 | 2018-11-23 | 陈荣华 | A kind of grinding of raising coarse granule feed rolls grinding device |
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