Wire core adjustable wire drawing device for power cable production

Abstract

The utility model relates to the technical field of power cable production, in particular to a wire drawing device with an adjustable wire core for power cable production, and aims to solve the problems that in the prior art, when a wire core sequentially penetrates through a plurality of dies with gradually-reduced die holes to be drawn, the wire core bears huge pulling force, and the diameter of the wire core is gradually reduced; the wire drawing die comprises a die base, a through hole, a vertical sliding groove, an upper die, a lower die, half die holes, a driving mechanism and a wire core, the half die holes of the upper die and the lower die are spliced to form a complete die hole, wire drawing can be completed by pulling the wire core to penetrate through the die holes through a stretching guide mechanism in the wire drawing process, the wire core is located in one die hole at the same time, and the wire core is located in the other die hole. During wire drawing and diameter changing, the driving mechanism drives the previous die hole to be separated, the new die hole to be spliced and the new die hole to buckle the wire core inside, so that the risk of breakage does not exist, the wire core does not need to be pulled into the new die hole again during diameter changing, and procedures are reduced while the production stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power cable production, and specifically to a wire core adjustable wire drawing device for power cable production. BACKGROUND

[0002] In the production of power cables, the wire core inside the power cable needs to be drawn from a thick copper rod to a specified specification to meet the requirements of different power transmission scenarios for the thickness and performance of the cable wire core. For example, in high-voltage transmission lines, thicker wire cores are needed to carry large currents, while in some internal connection lines of electronic devices, thinner wire cores are needed to achieve miniaturization and high flexibility. The wire processing industry is constantly developing, and the requirements for the size accuracy, surface finish, mechanical properties, and electrical conductivity of the wire are becoming higher and higher. Wire drawing process, as an important method to improve the performance of wire, is widely used. In order to produce high-quality wire products, it is necessary to continuously improve the wire drawing equipment to meet the wire drawing needs of different materials and different specifications.

[0003] The working principle of the wire core wire drawing device is mainly to utilize the ductility of metal, apply pressure and tension to the metal wire core through the die, and make it undergo plastic deformation, so as to achieve the purpose of reducing the diameter of the wire core and improving the performance of the wire core.

[0004] The prior art draws the wire core through a plurality of dies with gradually decreasing die holes, which causes the wire core to bear a large tension, and as the diameter gradually decreases, the wire core is very easy to break. UTILITY MODEL CONTENTS

[0005] The utility model discloses a wire core adjustable wire drawing device for power cable production to solve the technical problem that the wire core is drawn through a plurality of dies with gradually decreasing die holes in the prior art, which causes the wire core to bear a large tension, and as the diameter gradually decreases, the wire core is very easy to break.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wire core adjustable wire drawing device for power cable production, comprising: a die seat, a horizontal through hole is formed in the die seat, a plurality of vertical sliding grooves are formed on the upper surface of the die seat, a group of upper dies and lower dies are slidingly connected in each vertical sliding groove, a half die hole is formed on the upper die and the lower die, the half die holes of each group of upper dies and lower dies are different in diameter, the half die holes of the upper die and the lower die can be combined into a complete circle through a driving mechanism, the complete circle is concentrically arranged with the through hole, the driving mechanism is connected to the die seat, and the wire core is located in the through hole and connected with a stretching guide mechanism at both ends.

[0007] Preferably, the die seat is connected with a sleeve at both ends, an electric heating coil is connected in the sleeve, and the sleeve is concentrically arranged with the through hole.

[0008] Preferably, the middle part of the mold base is connected with a sleeve and an electric heating coil.

[0009] Preferably, the driving mechanism comprises a driving frame connected to the mold base, each upper mold is connected to the driving frame through a corresponding cylinder, each cylinder can be independently controlled, the upper mold and the lower mold are hinged with corresponding connecting rods, the connecting rods on the same side are hinged through a hinged sliding rod, and the hinged sliding rod is slidingly connected in a horizontal sliding groove.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The half mold holes of the upper mold and the lower mold are combined to form a complete mold hole, and the wire core can be pulled through the mold hole through the stretching guide mechanism during wire drawing, the wire core is located in one mold hole at the same time, the wire core is not broken due to low tension, when the wire drawing is changed in diameter, the previous mold hole is separated and a new mold hole is combined through the driving mechanism, the wire core is buckled in the new mold hole, so that there is no risk of breaking and the new mold hole does not need to be pulled into the new mold hole during the diameter change, the production stability is improved, and the process is reduced.

[0012] The wire core is preheated through the electric heating coil, so that the wire drawing is more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure of the utility model is shown Figure 1 ;

[0014] Figure 2 The structure of the utility model is shown Figure 1 ;

[0015] Figure 3 The structure of the utility model is shown Figure 2 ;

[0016] Figure 4 The structure of the utility model is shown Figure 2 .

[0017] In the drawing: mold base 1; through hole 2; vertical sliding groove 3; upper mold 4; lower mold 5; half mold hole 6; driving mechanism 7; wire core 8; sleeve 9; electric heating coil 10; driving frame 71; cylinder 72; corresponding connecting rod 73; hinged sliding rod 74; horizontal sliding groove 75. DETAILED DESCRIPTION

[0018] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0019] The rotary connection in the device refers to the rotary connection by baking the bearing on the shaft, the shaft or the shaft hole is provided with a spring retainer groove, the axial fixation of the bearing is realized by clamping the elastic retainer in the retainer groove, and rotation is realized.

[0020] The utility model will be described in detail below with reference to the drawings.

[0021] The utility model will be described in detail below with reference to the drawings. Figures 1-4 The utility model discloses a kind of line core adjustable wire drawing machines for power cable production, comprising: die holder 1, horizontal through hole 2 is opened in die holder 1, multiple vertical sliding slots 3 are opened in the upper surface of die holder 1, a group of upper die 4 and lower die 5 are slidably connected in each vertical sliding slot 3, half die hole 6 is opened in the upper die 4 and lower die 5, the aperture of half die hole 6 of each group of upper die 4 and lower die 5 is different, the half die hole 6 of upper die 4 and lower die 5 can be combined into whole circle by drive mechanism 7, whole circle is concentrically arranged with through hole 2, drive mechanism 7 is connected to die holder 1, line core 8 is located in through hole 2 and two ends are connected with stretching guide mechanism.

[0022] When using, line core 8 is passed through through hole 2 and two ends are connected to stretching guide mechanism, the upper die 4 and lower die 5 of corresponding diameter half die hole 6 are driven to be mutually buckled by drive mechanism 7, line core 8 is buckled in die hole, two ends stretching guide mechanism pulls line core 8 through die hole, line core 8 is elongated, diameter changes, at the same time, line core 8 is only located in one die hole, and the line core is not broken under low tension, and the line core 8 with high strength can also increase the number of die holes, and the diameter of the increased die hole is smaller than that of the previous die hole along the conveying direction, so as to speed up the wire drawing speed, when the wire drawing diameter changes, the previous die hole is separated and the new die hole is combined by drive mechanism 7, so that there is no risk of breaking, the diameter can also be changed without re-pulling into the new die hole, the production stability is improved, and the process is reduced.

[0023] Die holder 1 is connected with sleeve 9 at both ends, electric heating coil 10 is connected in sleeve 9, and sleeve 9 is concentrically arranged with through hole 2.

[0024] Line core 8 is preheated by passing through electric heating coil 10, so that the wire drawing is more smooth

[0025] Die holder 1 is connected with sleeve 9 and electric heating coil 10 in the middle.

[0026] The sleeve 9 and the electric heating coil 10 are added to conveniently control the temperature.

[0027] The driving mechanism 7 comprises a driving frame 71 connected to the mold base 1, each upper mold 4 is connected to the driving frame 71 through a corresponding cylinder 72, each cylinder 72 can be independently controlled, and the upper mold 4 and the lower mold 5 are hinged with corresponding connecting rods 73 on the side, the connecting rods 73 on the same side are hinged through a hinged sliding rod 74, the hinged sliding rod 74 is slidingly connected in a horizontal sliding groove 75, and the horizontal sliding groove 75 is arranged in the mold base 1.

[0028] When the mold hole is adjusted, the upper mold 4 is lifted when the cylinder 72 is gradually contracted, the upper mold 4 drives the hinged sliding rod 74 to slide in the horizontal sliding groove 75 through the hinged connecting rod 73, the hinged sliding rod 74 drives the lower mold 5 to move away from the upper mold 4 through the lower connecting rod 73, when the cylinder 72 is extended, the lower mold 5 approaches the upper mold 4 until they are buckled, so that the separation and buckling of the upper mold 4 and the lower mold 5 are realized.

[0029] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The standard parts used in the present application can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0031] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A core-adjustable wire drawing device for power cable production, characterized by: The utility model relates to a mould seat (1), the horizontal through hole (2) of being set up in mould seat (1), the upper surface of mould seat (1) is set up with multiple vertical sliding slot (3), each vertical sliding slot (3) is slidably connected with a group of upper mould (4) and lower mould (5), and the upper mould (4) and lower mould (5) are set up with half mould hole (6) on the upper mould (4) and lower mould (5), and the half mould hole (6) of each group upper mould (4) and lower mould (5) is different in aperture, and the half mould hole (6) of upper mould (4) and lower mould (5) can be combined into a whole circle through drive mechanism (7), and the whole circle is concentric with the through hole (2), and drive mechanism (7) is connected on mould seat (1), and wire core (8) is located in the through hole (2) and is connected with the stretching guide mechanism at both ends. The utility model relates to a mould seat (1), the horizontal through hole (2) of being set up in mould seat (1), the upper surface of mould seat (1) is set up with multiple vertical sliding slot (3), each vertical sliding slot (3) is slidably connected with a group of upper mould (4) and lower mould (5), and the upper mould (4) and lower mould (5) are set up with half mould hole (6) on the upper mould (4) and lower mould (5), and the half mould hole (6) of each group upper mould (4) and lower mould (5) is different in aperture, and the half mould hole (6) of upper mould (4) and lower mould (5) can be combined into a whole circle through drive mechanism (7), and the whole circle is concentric with the through hole (2), and drive mechanism (7) is connected on mould seat (1), and wire core (8) is located in the through hole (2) and is connected with the stretching guide mechanism at both ends.

2. A core adjustable wire drawing device for power cable production according to claim 1 characterized in that: The utility model relates to a mould seat (1), the horizontal through hole (2) of being set up in mould seat (1), the upper surface of mould seat (1) is set up with multiple vertical sliding slot (3), each vertical sliding slot (3) is slidably connected with a group of upper mould (4) and lower mould (5), and the upper mould (4) and lower mould (5) are set up with half mould hole (6) on the upper mould (4) and lower mould (5), and the half mould hole (6) of each group upper mould (4) and lower mould (5) is different in aperture, and the half mould hole (6) of upper mould (4) and lower mould (5) can be combined into a whole circle through drive mechanism (7), and the whole circle is concentric with the through hole (2), and drive mechanism (7) is connected on mould seat (1), and wire core (8) is located in the through hole (2) and is connected with the stretching guide mechanism at both ends.

3. A core adjustable wire drawing device for power cable production according to claim 2, characterized in that: ​ 4. A core adjustable wire drawing device for power cable production according to claim 1 characterized in that: ​

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