CN111890626A - Power cable sheath injection molding device and implementation method thereof - Google Patents

Power cable sheath injection molding device and implementation method thereof Download PDF

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Publication number
CN111890626A
CN111890626A CN202010640667.3A CN202010640667A CN111890626A CN 111890626 A CN111890626 A CN 111890626A CN 202010640667 A CN202010640667 A CN 202010640667A CN 111890626 A CN111890626 A CN 111890626A
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China
Prior art keywords
sleeve
gear
power cable
cable sheath
injection molding
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CN202010640667.3A
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CN111890626B (en
Inventor
孙弘
赵正红
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Anhui Heguang Electric Equipment Co ltd
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Anhui Heguang Electric Equipment Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/03Injection moulding apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/261Moulds having tubular mould cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2681Moulds with rotatable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a power cable sheath injection molding device and an implementation method thereof, and belongs to the technical field of power cable sheath injection molding. The feeding, the die pressing, the cooling and the demoulding are integrally formed, uninterrupted continuous production can be realized, the production method is suitable for producing the power cable sheath with longer length, the production efficiency is improved, the process of welding and increasing the power cable sheath is avoided, the production steps are reduced, and the cost is saved; the demolding is convenient, the molding is accelerated, and the qualified rate of the molded power cable sheath is high.

Description

Power cable sheath injection molding device and implementation method thereof
Technical Field
The invention relates to the technical field of power cable sheath injection molding, in particular to a power cable sheath injection molding device and an implementation method thereof.
Background
The sheathed cable is a single-core or multi-core wire with a sheath layer, and is safer with the sheath. It is said that the most commonly used "sheath line" has a white polyvinyl chloride sheath, inside which several BV lines are covered. This kind of line is the copper core wire generally, except that there is the one deck insulating layer outside the wire, the wire outside is one deck protective layer in addition, the power cable sheath adopts the mode production of moulding plastics usually, the bar sheet rubber of the certain gear of formation of moulding plastics earlier, curl into the tube-shape with the bar sheet rubber again, the butt fusion of junction, thereby form long tubular sheath, but the strength of junction is weak, produce this kind of sheath of longer length, lead to the junction to crack because of the atress easily in the use, the sheath destroys, and production processes is many, the step is loaded down with trivial details, low in production efficiency.
Disclosure of Invention
The invention aims to provide a power cable sheath injection molding device and an implementation method thereof, which realize the integrated molding of feeding, molding, cooling and demolding, can realize uninterrupted continuous production, are suitable for producing power cable sheaths with longer length, shorten the production period, improve the production efficiency, avoid the procedure of increasing the fusion of the power cable sheaths, reduce the production steps and save the cost; the power cable sheath is prevented from being bonded with the inner wall of the injection mold, demolding is facilitated, forming is accelerated, and the qualified rate of the formed power cable sheath is high, so that the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a power cable sheath injection molding device comprises a device shell, a feeding mechanism, a cooling pipeline, an injection mold and a mold base, wherein the feeding mechanism is installed on one side of the device shell, the cooling pipeline, the injection mold and the mold base are installed inside the device shell, the cooling pipeline is fixedly connected to the inner wall of the device shell through a pipe hoop, the mold base is fixedly connected to a bottom plate of the device shell through bolts, and the injection mold is connected to the mold base;
the injection mold comprises a front sleeve, a middle sleeve and a rear sleeve, wherein the front end and the rear end of the middle sleeve are respectively and rotatably connected with the front sleeve and the rear sleeve through bearings, the front end of the front sleeve extends to the outside of a device shell to form a feed inlet, the rear end of the rear sleeve extends to the outside of the device shell to form a discharge outlet, middle shafts are arranged in the middle of the front sleeve, the middle sleeve and the rear sleeve, a screen plate is fixedly connected between the middle shafts and the front sleeve, and gear rings are fixedly connected to the outer walls of the middle sleeve and the rear sleeve.
Furthermore, the diameters of the front sleeve, the middle sleeve and the rear sleeve are the same, the clamping rings are arranged at the front ends of the middle sleeve and the rear sleeve, annular grooves are formed in the inner walls of the rear ends of the front sleeve and the middle sleeve, and the annular grooves of the front sleeve and the clamping rings of the middle sleeve and the annular grooves of the middle sleeve and the clamping rings of the rear sleeve are buckled and connected and slide relatively.
Furthermore, well sleeve is the halfpace form that the front end diameter is little, the rear end diameter is big, and well sleeve and back telescopic front end are equipped with the snap ring, has seted up the ring channel on preceding sleeve and the telescopic rear end inner wall, between preceding telescopic ring channel and the well telescopic snap ring, between the telescopic ring channel of well and the telescopic snap ring lock of back be connected and relative slip.
Furthermore, the cooling pipelines are arranged along the corners of the device shell and are connected with the cooling system to form a closed annular pipeline.
Further, the mould base includes T type stabilizer blade, preceding gear, rear gear, the pivot, rotating electrical machines and motor mounting panel, T type stabilizer blade passes through bolt fixed connection device shell, install preceding gear and rear gear on two T type stabilizer blades respectively, ring gear intermeshing on preceding gear and the well sleeve, ring gear intermeshing on rear gear and the back sleeve, there is the pivot at the middle part of T type stabilizer blade through bearing swivelling joint, pivot and preceding gear, rear gear fixed connection, and the pivot passes through the shaft coupling and is connected with rotating electrical machines, rotating electrical machines's lower extreme passes through motor mounting panel fixed mounting on T type stabilizer blade.
Further, the left side and the right side of ring gear all install the mould base, do not install pivot, rotating electrical machines and motor mounting panel on the mould base of one side wherein.
Furthermore, the front gear and the rear gear are the same in size and shape, the tooth number and the radius of the front gear are both larger than those of the rear gear, and the rotating speed of the front gear is smaller than that of the rear gear.
According to another aspect of the present invention, there is provided an implementation method of an injection molding device for a sheath of a power cable, comprising the following steps:
s101: the feeding mechanism extrudes the molten rubber raw material into the discharge hole, and the rubber raw material enters an annular flow channel formed by the front sleeve and the middle shaft after passing through the screen plate;
s102: driving a cooling system, cooling condensate circularly flowing in a cooling pipeline, cooling the inner space of the shell of the device, and accelerating the cooling molding of the rubber raw material in the injection mold;
s103: in the process of cooling and forming the rubber raw material, a rotating motor drives a front gear and a rear gear to synchronously rotate, wherein the rotating speed of the front gear is lower than that of the rear gear;
s104: the front gear and the rear gear respectively drive the middle sleeve and the rear sleeve to rotate at different rotating speeds;
s105: and discharging the cooled and molded power cable sheath from a discharge hole.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the power cable sheath injection molding device and the implementation method thereof, feeding, mold pressing, cooling and demolding are integrally formed through the feeding mechanism, the rotatable combined injection mold and the cooling pipeline connected with the cooling system, continuous production can be achieved, the power cable sheath injection molding device is suitable for producing power cable sheaths with long lengths, the production period is shortened, the production efficiency is improved, the process of welding and increasing the length of the power cable sheaths is avoided, the production steps are reduced, and the cost is saved.
2. According to the power cable sheath injection molding device and the implementation method thereof, the front gear and the rear gear respectively drive the middle sleeve and the rear sleeve to rotate at different rotating speeds, so that the power cable sheath is prevented from being bonded with the inner wall of an injection mold, demolding is facilitated, molding is accelerated, no rubber raw material is left in an annular flow passage, and the qualified rate of the molded power cable sheath is high.
Drawings
FIG. 1 is an overall configuration view of an injection molding apparatus for a sheath of a power cable according to the present invention;
fig. 2 is an installation diagram of an injection mold of an injection molding device for a sheath of a power cable according to a first embodiment of the present invention;
FIG. 3 is a view showing the structure of the device case of the power cable sheath injection molding device of the present invention;
fig. 4 is a connection diagram of an injection mold of an injection molding device for a sheath of a power cable according to a first embodiment of the present invention;
fig. 5 is an assembly view of an injection mold of an injection molding device for a sheath of a power cable according to a first embodiment of the present invention;
fig. 6 is an exploded view of an injection mold of an injection molding device for a sheath of a power cable according to a first embodiment of the present invention;
FIG. 7 is a view showing a structure of a mold base of the injection molding apparatus for a sheath of a power cable according to the present invention;
fig. 8 is an assembly view of an injection mold of an injection molding device for a sheath of a power cable according to a second embodiment of the present invention;
fig. 9 is a flow chart of an implementation method of the power cable sheath injection molding device of the invention.
In the figure; 1. a device housing; 2. a feeding mechanism; 3. a cooling duct; 4. injection molding a mold; 41. a front sleeve; 42. a middle sleeve; 43. a rear sleeve; 44. a feed inlet; 45. a discharge port; 46. a middle shaft; 47. a screen plate; 48. a toothed ring; 49. a snap ring; 5. a mold base; 51. a T-shaped support leg; 52. a front gear; 53. a rear gear; 54. a rotating shaft; 55. a rotating electric machine; 56. motor mounting panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 3, a power cable sheath injection molding device, including device shell 1, feed mechanism 2, cooling pipeline 3, injection mold 4 and mold base 5, feed mechanism 2 is installed to one side of device shell 1, internally mounted has cooling pipeline 3, injection mold 4 and mold base 5, cooling pipeline 3 passes through ferrule fixed connection on device shell 1 inner wall, cooling pipeline 3 is arranged along the corner of device shell 1, and constitute closed ring conduit with cooling system interconnect, mold base 5 passes through bolt fixed connection on device shell 1 bottom plate, and be connected with injection mold 4 on mold base 5.
Referring to fig. 4 to 6, the injection mold 4 includes a front sleeve 41, a middle sleeve 42 and a rear sleeve 43, the front end and the rear end of the middle sleeve 42 are respectively rotatably connected with the front sleeve 41 and the rear sleeve 43 through bearings, the front end of the front sleeve 41 extends to the outside of the device housing 1 and forms a feed inlet 44, the rear end of the rear sleeve 43 extends to the outside of the device housing 1 and forms a discharge outlet 45, a middle shaft 46 is disposed in the middle of the front sleeve 41, the middle sleeve 42 and the rear sleeve 43, the middle shaft 46 can be a tubular pipe to reduce the weight of the middle shaft 46 and avoid the suspended rear end offset of the middle shaft 46, a mesh plate 47 is fixedly connected between the middle shaft 46 and the front sleeve 41, toothed rings 48 are fixedly connected to the outer walls of the middle sleeve 42 and the rear sleeve 43, mold bases 5 are mounted on the left side and the right side of the toothed rings 48, a rotating shaft 54, a rotating motor 55 and a motor mounting plate 56 are not mounted on the mold base 5 on one side, a front gear 52 and a rear gear 53 on the other mold base 5 are driven to rotate along with the gear ring 48 and are used for supporting the injection mold 4; the diameters of the front sleeve 41, the middle sleeve 42 and the rear sleeve 43 are the same, the front ends of the middle sleeve 42 and the rear sleeve 43 are provided with clamping rings 49, the inner walls of the rear ends of the front sleeve 41 and the middle sleeve 42 are provided with annular grooves, and the annular grooves of the front sleeve 41 and the clamping rings 49 of the middle sleeve 42 and the annular grooves of the middle sleeve 42 and the clamping rings 49 of the rear sleeve 43 are buckled and connected and slide relatively.
Referring to fig. 7, the mold base 5 includes T-shaped legs 51, a front gear 52, a rear gear 53, a rotating shaft 54, a rotating motor 55 and a motor mounting plate 56, the T-shaped legs 51 are fixedly connected to the apparatus housing 1 by bolts, the two T-shaped legs 51 are respectively provided with the front gear 52 and the rear gear 53, the front gear 52 is engaged with the toothed ring 48 on the middle sleeve 42, the rear gear 53 is engaged with the toothed ring 48 on the rear sleeve 43, the middle portion of the T-shaped legs 51 is rotatably connected to the rotating shaft 54 through a bearing, the rotating shaft 54 is fixedly connected to the front gear 52 and the rear gear 53, the rotating shaft 54 is connected to the rotating motor 55 through a coupling, the lower end of the rotating motor 55 is fixedly mounted to the T-shaped legs 51 through the motor mounting plate 56, the rotating motor 55 drives the front gear 52 and the rear gear 53 to rotate, the front gear 52 and the rear gear 53 respectively drive the middle sleeve 42 and the rear sleeve 43 to, the power cable sheath is prevented from being bonded with the inner wall of the injection mold 4, demolding is facilitated, molding is accelerated, no residue is left in the annular flow channel of the rubber raw material, the qualified rate of the molded power cable sheath is high, the sizes and the shapes of the teeth on the front gear 52 and the rear gear 53 are the same, the number of teeth and the radius of the front gear 52 are both larger than those of the rear gear 53, and the rotating speed of the front gear 52 is smaller than that of the rear gear 53.
Referring to fig. 8, in order to better show the injection molding process of the power cable sheath injection molding device, the embodiment provides an implementation method of the power cable sheath injection molding device, which includes the following steps:
s101: the feeding mechanism 2 extrudes the molten rubber raw material into the discharge hole 45, the rubber raw material enters an annular flow channel formed by the front sleeve 41 and the middle shaft 46 after penetrating through the screen plate 47, and the shape of the annular flow channel is the shape of a formed power cable sheath;
s102: driving a cooling system, and circulating flowing condensate in a cooling pipeline 3 to cool the inner space of the device shell 1 and accelerate the cooling molding of the rubber raw material in the injection mold 4;
s103: in the process of cooling and forming the rubber raw material, the rotating motor 55 drives the front gear 52 and the rear gear 53 to synchronously rotate, wherein the rotating speed of the front gear 52 is lower than that of the rear gear 53;
s104: the front gear 52 and the rear gear 53 respectively drive the middle sleeve 42 and the rear sleeve 43 to rotate at different rotating speeds, the middle sleeve 42 rotates at a low speed for transition, the high-speed rotation is avoided, the power cable sheath is prevented from being distorted and deformed, the high-speed rotation of the rear sleeve 43 is realized, the power cable sheath basically breaks away from the inner wall of the rear sleeve 43, and the resistance when the power cable sheath is discharged is reduced;
s105: and discharging the cooled and formed power cable sheath from a discharge hole 45, wherein the discharged power cable sheath is formed, and if the power cable sheath is not formed, the total length of the injection mold 4 needs to be increased, and the temperature of condensate introduced into the cooling pipeline 3 is reduced.
Example two
Referring to fig. 9, the middle sleeve 42 is in a step shape with a small diameter at the front end and a large diameter at the rear end, the front ends of the middle sleeve 42 and the rear sleeve 43 are provided with a snap ring 49, the inner walls of the rear ends of the front sleeve 41 and the middle sleeve 42 are provided with annular grooves, the annular groove of the front sleeve 41 and the snap ring 49 of the middle sleeve 42, and the annular groove of the middle sleeve 42 and the snap ring 49 of the rear sleeve 43 are buckled and connected and slide relatively; the diameter of the produced power cable sheath is changed, the sheath is suitable for producing sheaths of cable connecting parts with different diameters, the produced products are various in types, and the market demand is met.
Referring to fig. 8, in order to better show the injection molding process of the power cable sheath injection molding device, the embodiment provides an implementation method of the power cable sheath injection molding device, which includes the following steps:
s101: the feeding mechanism 2 extrudes the molten rubber raw material into the discharge hole 45, the rubber raw material enters an annular flow channel formed by the front sleeve 41 and the middle shaft 46 after penetrating through the screen plate 47, and the shape of the annular flow channel is the shape of a formed power cable sheath;
s102: driving a cooling system, and circulating flowing condensate in a cooling pipeline 3 to cool the inner space of the device shell 1 and accelerate the cooling molding of the rubber raw material in the injection mold 4;
s103: in the process of cooling and forming the rubber raw material, the rotating motor 55 drives the front gear 52 and the rear gear 53 to synchronously rotate, wherein the rotating speed of the front gear 52 is lower than that of the rear gear 53;
s104: the front gear 52 and the rear gear 53 respectively drive the middle sleeve 42 and the rear sleeve 43 to rotate at different rotating speeds, the middle sleeve 42 rotates at a low speed for transition, the high-speed rotation is avoided, the power cable sheath is prevented from being distorted and deformed, the high-speed rotation of the rear sleeve 43 is realized, the power cable sheath basically breaks away from the inner wall of the rear sleeve 43, and the resistance when the power cable sheath is discharged is reduced;
s105: and discharging the cooled and formed power cable sheath from a discharge hole 45, wherein the discharged power cable sheath is formed, and if the power cable sheath is not formed, the total length of the injection mold 4 needs to be increased, and the temperature of condensate introduced into the cooling pipeline 3 is reduced.
In summary, the following steps: according to the power cable sheath injection molding device and the implementation method thereof, feeding, mold pressing, cooling and demolding are integrally formed through the feeding mechanism 2, the rotatable combined injection mold 4 and the cooling pipeline 3 connected with the cooling system, uninterrupted continuous production can be realized, the power cable sheath injection molding device is suitable for producing power cable sheaths with longer lengths, the production period is shortened, the production efficiency is improved, the procedure of welding and increasing the length of the power cable sheaths is avoided, the production steps are reduced, and the cost is saved; the front gear 52 and the rear gear 53 respectively drive the middle sleeve 42 and the rear sleeve 43 to rotate at different rotating speeds, so that the power cable sheath is prevented from being bonded with the inner wall of the injection mold 4, demolding is facilitated, molding is accelerated, no rubber raw material is left in an annular flow channel, and the qualified rate of the molded power cable sheath is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions disclosed in the present invention and the equivalent alternatives or modifications thereof within the scope of the present invention.

Claims (8)

1. The power cable sheath injection molding device is characterized by comprising a device shell (1), a feeding mechanism (2), a cooling pipeline (3), an injection mold (4) and a mold base (5), wherein the feeding mechanism (2) is installed on one side of the device shell (1), the cooling pipeline (3), the injection mold (4) and the mold base (5) are installed inside the device shell, the cooling pipeline (3) is fixedly connected to the inner wall of the device shell (1) through a pipe hoop, the mold base (5) is fixedly connected to a bottom plate of the device shell (1) through bolts, and the injection mold (4) is connected to the mold base (5);
injection mold (4) are including preceding sleeve (41), well sleeve (42) and back sleeve (43), there are preceding sleeve (41) and back sleeve (43) at the front and back both ends of well sleeve (42) through bearing swivelling joint respectively, the front end of preceding sleeve (41) extends to device shell (1) outside and forms feed inlet (44), the rear end of back sleeve (43) extends to device shell (1) outside and forms discharge gate (45), preceding sleeve (41), well sleeve (42) and back sleeve (43) middle part are equipped with axis (46), fixedly connected with otter board (47) between axis (46) and preceding sleeve (41), all fixedly connected with ring gear (48) on the outer wall of well sleeve (42) and back sleeve (43).
2. The power cable sheath injection molding device according to claim 1, wherein the front sleeve (41), the middle sleeve (42) and the rear sleeve (43) have the same diameter, the front ends of the middle sleeve (42) and the rear sleeve (43) are provided with snap rings (49), the inner wall of the rear end of the front sleeve (41) and the middle sleeve (42) is provided with an annular groove, the annular groove of the front sleeve (41) and the snap rings (49) of the middle sleeve (42) as well as the annular groove of the middle sleeve (42) and the snap rings (49) of the rear sleeve (43) are connected in a buckling manner and slide relatively.
3. The power cable sheath injection molding device according to claim 1, wherein the middle sleeve (42) is in a step shape with a small diameter at the front end and a large diameter at the rear end, the front ends of the middle sleeve (42) and the rear sleeve (43) are provided with snap rings (49), the inner wall of the rear end of the front sleeve (41) and the middle sleeve (42) is provided with an annular groove, the annular groove of the front sleeve (41) and the snap rings (49) of the middle sleeve (42) and the annular groove of the middle sleeve (42) and the snap rings (49) of the rear sleeve (43) are connected in a buckling manner and slide relatively.
4. An injection moulding device for a sheath of an electric power cable according to claim 1, characterised in that the cooling ducts (3) are arranged along the corners of the device housing (1) and are interconnected with the cooling system to form a closed loop.
5. The power cable sheath injection molding device according to claim 1, wherein the mold base (5) comprises T-shaped support legs (51), a front gear (52), a rear gear (53), a rotating shaft (54), a rotating motor (55) and a motor mounting plate (56), the T-shaped support legs (51) are fixedly connected with the device shell (1) through bolts, the front gear (52) and the rear gear (53) are respectively mounted on the two T-shaped support legs (51), the front gear (52) is meshed with a gear ring (48) on the middle sleeve (42), the rear gear (53) is meshed with a gear ring (48) on the rear sleeve (43), the middle part of the T-shaped support legs (51) is rotatably connected with the rotating shaft (54) through a bearing, the rotating shaft (54) is fixedly connected with the front gear (52) and the rear gear (53), and the rotating shaft (54) is connected with the rotating motor (55) through a coupler, the lower end of the rotating motor (55) is fixedly arranged on the T-shaped support leg (51) through a motor mounting plate (56).
6. An injection molding device for a power cable sheath according to claim 5, wherein the mold base (5) is installed on both the left side and the right side of the gear ring (48), and the rotating shaft (54), the rotating motor (55) and the motor installation plate (56) are not installed on the mold base (5) on one side.
7. An injection molding device for power cable sheath according to claim 5, wherein the front gear (52) and the rear gear (53) have the same size and shape of teeth, the number of teeth and the radius of the front gear (52) are both larger than those of the rear gear (53), and the rotation speed of the front gear (52) is smaller than that of the rear gear (53).
8. A method of implementing an injection moulding device for a sheath of a power cable according to any one of claims 1 to 7, characterized in that it comprises the following steps:
s101: the feeding mechanism (2) extrudes the rubber raw material in a molten state into the discharge hole (45), and the rubber raw material enters an annular flow channel formed by the front sleeve (41) and the middle shaft (46) after passing through the screen plate (47);
s102: driving a cooling system, wherein condensate circularly flows in a cooling pipeline (3) to cool the inner space of the device shell (1) and accelerate the cooling molding of the rubber raw material in the injection mold (4);
s103: in the process of cooling and forming the rubber raw material, a rotating motor (55) drives a front gear (52) and a rear gear (53) to synchronously rotate, wherein the rotating speed of the front gear (52) is lower than that of the rear gear (53);
s104: the front gear (52) and the rear gear (53) respectively drive the middle sleeve (42) and the rear sleeve (43) to rotate at different rotating speeds;
s105: and discharging the cooled and molded power cable sheath from a discharge port (45).
CN202010640667.3A 2020-07-06 2020-07-06 Power cable sheath injection molding device and implementation method thereof Active CN111890626B (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN115230060A (en) * 2022-09-23 2022-10-25 江苏通济线缆有限公司 Power cable sheath device of moulding plastics

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CN102358022A (en) * 2011-08-01 2012-02-22 武汉工程大学 Polymer material pipe single-screw continuous extrusion forming cylinder forming method and forming device thereof
CN210256961U (en) * 2019-05-10 2020-04-07 昆明电缆集团电线有限公司 Device for producing wire and cable sheath wire

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Publication number Priority date Publication date Assignee Title
KR20000060643A (en) * 1999-03-18 2000-10-16 이영일 Apparatus and method for removing fluorine plastic layer of XLPE pipe mold die
WO2010071256A1 (en) * 2008-12-16 2010-06-24 Son Sam Soo Triple pipe, manufacturing apparatus thereof and manufacturing method thereof, connecting member connecting the triple pipe and connecting method using the member
CN102358022A (en) * 2011-08-01 2012-02-22 武汉工程大学 Polymer material pipe single-screw continuous extrusion forming cylinder forming method and forming device thereof
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Publication number Priority date Publication date Assignee Title
CN115230060A (en) * 2022-09-23 2022-10-25 江苏通济线缆有限公司 Power cable sheath device of moulding plastics
CN115230060B (en) * 2022-09-23 2023-01-03 江苏通济线缆有限公司 Power cable sheath injection molding device

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CN111890626B (en) 2022-03-22

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