Injection mold core separating device of insulating pull rod

Abstract

An injection mold core separating device of an insulating pull rod belongs to the field of processing equipment of the insulating pull rod and structurally comprises a separating seat with a cavity inside and a mold core, the separating seat is provided with a separating driving assembly for separating the mold core from the metal insert on the insulating pull rod; the separation driving assembly comprises a telescopic opening movably connected with the mold core in a sleeving mode, a driving motor located in the separation base and a gear connected to the output end of the driving motor. One end part of the mold core passes through the telescopic opening and is provided with a toothed plate meshed with the gear, the other end part of the mold core is exposed out of the separation seat and is provided with an inner clamping mechanism, and the inner clamping type injection mold core separation device for connecting and positioning the metal insert is arranged in the injection mold of the insulating pull rod, so that the metal insert is clamped by the inner clamping mechanism on the mold core, and the metal insert is separated from the mold core. And axial stretching and retracting work of the mold core is achieved through the separation driving assembly, and damage to an insulator in the demolding and separating process of the metal insert is effectively prevented.

Description

Technical Field

[0001] This utility model is a device for separating the injection mold core of an insulating tie rod, belonging to the field of processing equipment for insulating tie rods. Background Technology

[0002] When the switchgear is in a energized operating state, the insulating tie rod is used to isolate the energized parts of the main circuit of the circuit breaker from the mechanical operating parts.

[0003] In existing insulating tie rods, the metal inserts at both ends are molded together during injection molding. The metal inserts need to be positioned by the mold core on the mold. Before the upper mold is installed, the metal inserts are threaded together with the mold core. During the subsequent demolding process, the metal inserts are unscrewed by manually or by motor-driven screws on the mold core. In this process, the spiral force can easily cause the metal inserts and the insulation on the insulating tie rod to crack or deform, thus affecting the use of the insulating tie rod. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an injection mold core separation device for insulating tie rods. This device solves the problem that in existing insulating tie rods, the metal inserts connecting the upper and lower ends are molded together during injection molding. However, the metal inserts require a mold core on the mold for positioning. Before the upper mold is installed, the metal inserts are threaded together with the mold core. During subsequent demolding, the metal inserts are unscrewed manually or by a motor driven by the mold core threads. In this process, the spiral force can easily cause cracking or deformation of the metal inserts and the insulation material on the insulating tie rod, thus affecting the use of the insulating tie rod.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an injection mold core separation device for an insulating tie rod, the structure of which includes a separation seat with an internal cavity and a mold core; the separation seat is provided with a separation drive assembly for separating the mold core from the metal insert on the insulating tie rod;

[0006] The separation drive assembly includes a telescopic port that is movably sleeved with the mold core, a drive motor located inside the separation seat, and a gear connected to the output end of the drive motor.

[0007] One end of the mold core passes through the telescopic opening and is provided with a toothed plate that meshes with the gear, while the other end protrudes from the separation seat and is provided with an internal clamping mechanism.

[0008] Furthermore, in order to perform electric internal clamping, the internal clamping mechanism is specifically an electric cylinder, and its output end is provided with a clamping block.

[0009] Furthermore, in order for the inner clamping mechanism to clamp the metal insert after the toothed plate drives the mold core to extend out of the telescopic opening under the gear drive, the inner clamping mechanism is set horizontally and perpendicular to the toothed plate.

[0010] Furthermore, in order to improve the tightness of the fit with the metal insert, the mold core is either a cylindrical structure or a prismatic structure.

[0011] Furthermore, in order to ensure the normal operation of the inner clamping mechanism and the drive motor, a power supply line is also provided on the outer wall of the separation seat, which is used to supply power to the inner clamping mechanism and the drive motor.

[0012] Furthermore, in order to assemble with the mold, the outer wall of the separator is provided with bolt holes for fixing to the mold.

[0013] Furthermore, in order to improve driving efficiency, the drive motor is specifically a servo motor with a worm gear reducer.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting an internal clamping injection mold core separation device in the injection mold of the insulating tie rod to connect and position the metal insert, the internal clamping mechanism on the mold core clamps the metal insert, and the separation drive component realizes the axial extension and retraction of the mold core, which effectively prevents damage to the insulation during the demolding and separation of the metal insert. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the injection mold core separation device for an insulating tie rod according to the present invention;

[0018] Figure 2 This is a top-view cross-sectional structural diagram showing the connection between the injection mold core separation device and the mold.

[0019] Figure 3 This is a cross-sectional structural diagram of an injection mold core separation device for an insulating tie rod according to the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram showing the clamping state of the injection mold core separation device and the metal insert.

[0021] In the diagram: Separator-1, Mold core-2, Mold-3, Mold groove-31, Metal insert placement area-32, Separation drive assembly-11, Telescopic port-111, Drive motor-112, Gear-113, Tooth plate-21, Internal clamping mechanism-22, Clamping block-23, Metal insert-4, Clamping slot-41. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution for a molding core separation device for an insulating tie rod: its structure includes a separation seat 1 with an internal cavity and a molding core 2; the separation seat 1 is provided with a separation drive assembly 11 for separating the molding core 2 from the metal insert on the insulating tie rod;

[0024] like Figure 2 As shown, there are two separation seats 1, which are respectively set in front of and behind the mold groove 31 in the mold 3. The mold groove 31 is used for the casting and molding of the insulating material on the insulating tie rod. The mold groove 31 is provided in front of and behind the metal insert placement area 32 corresponding to the separation seat 1.

[0025] like Figure 3 As shown, the separation drive assembly 11 includes a telescopic port 111 that is movably sleeved with the mold core 2, a drive motor 112 located inside the separation seat 1, and a gear 113 connected to the output end of the drive motor 112.

[0026] One end of the mold core 2 passes through the telescopic opening 111 and is provided with a toothed plate 21 that meshes with the gear 113, while the other end protrudes from the separation seat 1 and is provided with an internal clamping mechanism 22.

[0027] The connection between the telescopic port 111 and the mold core 2 is provided with a metal sealing ring to prevent molten liquid from entering the separation seat 1.

[0028] In order to perform electric internal clamping, the internal clamping mechanism 22 is specifically an electric cylinder, and its output end is provided with a clamping block 23.

[0029] In order for the toothed plate 21 to drive the mold core 2 to extend out of the telescopic opening 111 under the drive of the gear 113, the inner clamping mechanism 22 can clamp the metal insert. The inner clamping mechanism 22 is set horizontally and perpendicular to the toothed plate 21.

[0030] To improve the tightness of the fit with the metal insert, the mold core 2 is a cylindrical structure.

[0031] In order to ensure the normal operation of the inner clamping mechanism 22 and the drive motor 112, a power supply line is also provided on the outer wall of the separation seat 1. The power supply line is used to supply power to the inner clamping mechanism 22 and the drive motor 112. The other end of the power supply line is connected to an external power source. The power supply line is specifically one of silicone insulated wire or PTFE silver-plated wire, preferably PTFE silver-plated wire. The power supply line has a double-layer heat insulation sleeve, with the inner layer being a ceramic fiber braided sleeve and the outer layer being covered with fluororubber heat shrink tubing, which gives the power supply line the advantage of high temperature resistance.

[0032] In order to be assembled with the mold, the outer wall of the separation seat 1 is provided with bolt holes for fixing to the mold.

[0033] To improve driving efficiency, the drive motor 112 is specifically a servo motor with a worm gear reducer.

[0034] Principle: Before the mold 3 closes, two metal inserts 4 are placed in the two metal insert placement areas 32 respectively. The drive motor 112 runs, driving the gear 113 to rotate clockwise. The gear 113 drives the meshing toothed plate 21, which in turn drives the mold core 2 to extend out of the telescopic opening 111 and fit into the clamping slot 41 of the metal insert 4. Then, the electric cylinder runs, driving the clamping block 23 to extend out of the outer wall of the mold core 2 and clamp and position it against the inner wall of the clamping slot 41. Figure 4 As shown, as the mold 3 closes, liquid epoxy resin is introduced through the mold injection port to directly cast and fix the two metal inserts 4 onto the insulating material. After the mold is opened and cooled, the clamping block 23 is reset first, and then the drive motor 112 drives the gear 113 to rotate counterclockwise to drive the mold core 2 to disengage from the clamping slot 41. Example

[0035] For the sake of brevity, the parts that are the same as those in other embodiments will not be described again. The main focus here is on the structure that is different from other embodiments of this utility model. In this application, the mold core 2 is a prism structure, which improves the positioning and limiting effect.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for separating the injection mold core of an insulating tie rod, characterized in that: Its structure includes a separation seat (1) with an internal cavity and a mold core (2); the separation seat (1) is provided with a separation drive assembly (11) for separating the mold core (2) from the metal insert on the insulating tie rod; The separation drive assembly (11) includes a telescopic port (111) that is movably sleeved with the mold core (2), a drive motor (112) located inside the separation seat (1), and a gear (113) connected to the output end of the drive motor (112). One end of the mold core (2) passes through the telescopic opening (111) and is provided with a toothed plate (21) that meshes with the gear (113), while the other end protrudes from the separation seat (1) and is provided with an internal clamping mechanism (22).

2. An injection mold core separation device for insulated pull rods as defined in claim 1, wherein: The internal clamping mechanism (22) is specifically an electric cylinder, and its output end is provided with a clamping block (23).

3. An injection mold core separation device for insulated pull rods as defined in claim 2, wherein: The inner clamping mechanism (22) is horizontally positioned and perpendicular to the toothed plate (21).

4. An injection mold core separation device for insulated pull rods as defined in claim 3, wherein: The mold core (2) is either a cylindrical structure or a prismatic structure.

5. An injection mold core separation device for insulated pull rods as defined in claim 3, wherein: It also includes a power supply line located on the outer wall of the separation seat (1), which is used to supply power to the inner clamping mechanism (22) and the drive motor (112).

6. An injection mold core separation device for insulated pull rods as defined in claim 1, wherein: The outer wall of the separation seat (1) is provided with bolt holes for fixing to the mold.

7. An injection mold core separation device for insulated pull rods as defined in claim 1, wherein: The drive motor (112) is specifically a servo motor with a worm gear reducer.

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