A demolding device for an electric meter box

By designing a demolding device for the electric meter box housing, and utilizing a combination of a cam-driven push rod and a damping rod spring, the problem of the electric meter box housing falling off during demolding was solved, achieving a stable and safe demolding process.

CN224408354UActive Publication Date: 2026-06-26ANHUI ZHIJUNTONG ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHIJUNTONG ELECTRIC CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing meter box is prone to falling off during demolding after injection molding, which can damage the product.

Method used

A demolding device for an electric meter box housing is adopted. A cam drives a push rod to cause the lower mold to shake, so that the electric meter box housing is separated from the lower mold. The damping rod and spring work together to achieve buffering and deceleration, thus achieving a better demolding effect.

Benefits of technology

This effectively avoids damage to the meter box housing during the demolding process, improving the stability and safety of demolding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of electric meter box shell production, and discloses a demolding device for an electric meter box shell, which comprises a base, a supporting frame is arranged above the base, a plurality of supports are arranged at the bottom of the supporting frame and are fixedly connected with the base, an undermould is arranged in the supporting frame, a demolding assembly is arranged above the base, the demolding assembly comprises a push rod, a fixed sleeve is arranged on the outer side of the push rod, a cam is arranged on one side of the sleeve, a through hole is arranged at the bottom of the supporting frame, an insertion slot is arranged at the bottom of the undermould, one end of the push rod penetrates through the through hole and extends into the insertion slot, a sliding block is fixedly connected to the other end of the push rod, a sliding groove and a mounting groove are sequentially arranged above the base, the sliding block is slidably connected with the sliding groove, and a driving piece for driving the cam to rotate is arranged in the mounting groove. When the undermould is extruded, the baffle will be extruded, and the damping rod and the spring will be compressed at the same time; at this time, the baffle will be driven to move reversely under the potential energy of the spring, the moving undermould is slowed down, and a better demolding effect is achieved.
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Description

Technical Field

[0001] This application relates to the field of meter box housing manufacturing technology, and in particular to a demolding device for meter box housing. Background Technology

[0002] The material used to manufacture the low-voltage cable branch box is a resin-based composite material. The main components of the meter box body are injection molded from four materials: ABS engineering plastic, polycarbonate transparent PC material, DMC, and SMC.

[0003] Existing meter boxes require demolding after injection molding. In most cases, the lower mold is flipped over and vibrated downwards to demold the meter box. This can easily cause the meter box to fall during demolding, resulting in damage and affecting the demolding process. Utility Model Content

[0004] To address the problem that existing meter boxes require demolding after injection molding, most methods involve flipping the lower mold over and vibrating it downwards for demolding. This often results in the meter box falling and breaking, thus hindering the demolding process. This application provides a demolding device for the meter box housing.

[0005] The demolding device for an electric meter box housing provided in this application adopts the following technical solution:

[0006] A demolding device for an electric meter box housing includes a base, a support frame mounted on top of the base, the bottom of the support frame being fixedly connected to the base via multiple brackets, and a lower mold being provided inside the support frame. A demolding assembly is mounted on top of the base, the demolding assembly including a push rod, a collar fixedly sleeved on the outer side of the push rod, and a cam mounted on one side of the collar. A through hole is provided at the bottom of the support frame, and a slot is provided at the bottom of the lower mold. One end of the push rod passes through the through hole and extends into the slot, and the other end is fixedly connected to a slider. A sliding groove and a mounting groove are sequentially provided on top of the base. The slider is slidably connected to the sliding groove, and a driving component for driving the cam to rotate is installed in the mounting groove.

[0007] Preferably, a groove is formed on one inner wall of the support frame, a buffer seat is fixed in the groove, a buffer cavity is provided in the buffer seat, a slide plate is slidably installed in the buffer cavity, a plurality of connecting rods are equally spaced at one end of the slide plate, a baffle is slidably installed inside the support frame, and the other ends of the plurality of connecting rods all pass through to the outside of the buffer seat and are fixedly connected to the baffle.

[0008] Preferably, a plurality of damping rods are installed at equal intervals between the slide plate and the inner wall of the buffer cavity, and a spring is sleeved on the outer side of the damping rod.

[0009] Preferably, the driving component includes a motor fixed in the mounting slot, a main gear mounted on the output end of the motor, and a driven gear meshing with one side of the main gear. The lower end of the cam is rotatably connected to the mounting slot via a rotating shaft, and the driven gear is fixedly sleeved on the rotating shaft.

[0010] Preferably, two sets of electric push rods are symmetrically installed on the outer side of the base, and the output ends of the two sets of electric push rods are fixed with a top plate. An upper mold that matches the lower mold is fixedly installed at the bottom of the top plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The demolding device for the meter box housing works as follows: When the meter box housing is injection molded and demolding is required, the drive motor drives the cam to rotate synchronously. When the cam's protruding end rotates to contact the collar on the outside of the push rod, it simultaneously squeezes the push rod. The push rod causes the lower mold to shake, thus separating the meter box housing from the lower mold and achieving the demolding effect. The push rod also drives the slider to move within the slide groove to achieve the purpose of limiting the movement. When the lower mold is squeezed, it will squeeze the baffle and compress the damping rod and spring. At this time, under the action of the spring's potential energy, it will drive the baffle to move in the opposite direction, thus slowing down the moving lower mold and achieving a better demolding effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the support frame in this utility model;

[0015] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0016] Figure 4 This is a top view of the cam in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support frame; 3. Bracket; 4. Lower mold; 5. Electric push rod; 6. Collar; 7. Cam; 8. Slider; 9. Buffer seat; 10. Slide plate; 11. Connecting rod; 12. Baffle; 13. Damping rod; 14. Spring; 15. Motor; 16. Rotating shaft; 17. Slide groove; 18. Mounting groove; 19. Upper mold; 20. Push rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution:

[0020] A demolding device for an electric meter box housing includes a base 1, a support frame 2 mounted on top of the base 1, the bottom of the support frame 2 being fixedly connected to the base 1 by multiple brackets 3, and a lower mold 4 being provided inside. A demolding assembly is mounted on top of the base 1, the demolding assembly including a push rod 20, a collar 6 fixedly sleeved on the outside of the push rod 20, and a cam 7 mounted on one side of the collar 6. A through hole is provided at the bottom of the support frame 2, and a slot is provided at the bottom of the lower mold 4. One end of the push rod 20 passes through the through hole and extends into the slot, and the other end is fixedly connected to a slider 8. A sliding groove 17 and a mounting groove 18 are sequentially provided on top of the base 1. The slider 8 is slidably connected to the sliding groove 17, and a driving component for driving the cam 7 to rotate is installed in the mounting groove.

[0021] A groove is provided on one side of the inner wall of the support frame 2. A buffer seat 9 is fixed in the groove. A buffer cavity is provided in the buffer seat 9. A slide plate 10 is slidably installed in the buffer cavity. Multiple connecting rods 11 are evenly spaced at one end of the slide plate 10. A baffle 12 is slidably installed inside the support frame 2. The other ends of the multiple connecting rods 11 all pass through the buffer seat 9 and are fixedly connected to the baffle 12.

[0022] Multiple damping rods 13 are installed at equal intervals between the slide plate 10 and the inner wall of the buffer cavity, and springs 14 are sleeved on the outside of the damping rods 13.

[0023] The driving component includes a motor 15 fixed in the mounting slot, a main gear mounted on the output end of the motor 15, and a driven gear meshing with one side of the main gear. The lower end of the cam 7 is rotatably connected to the mounting slot 18 via a rotating shaft 16, and the driven gear is fixedly sleeved on the rotating shaft 16.

[0024] When the meter box housing is injection molded and demolding is required, the drive motor 15 drives the main gear to rotate. With the cooperation of the slave gear, the rotating shaft 16 and cam 7 rotate synchronously. When the protruding end of cam 7 rotates to contact the collar 6 on the outside of push rod 20, it will simultaneously squeeze push rod 20. Push rod 20 will cause the lower mold 4 to shake, thereby separating the meter box housing from the lower mold 4 and achieving the demolding effect. Push rod 20 will simultaneously drive slider 8 to move in slide groove 17 to achieve the purpose of limiting. When the lower mold 4 is squeezed, it will squeeze baffle 12. Baffle 12 squeezes slide plate 10 to move in buffer cavity through multiple connecting rods 11. At the same time, it will compress damping rod 13 and spring 14. At this time, under the action of the potential energy of spring 14, it will drive baffle 12 to move in the opposite direction, thereby decelerating the moving lower mold 4 and achieving a better demolding effect. At the same time, it will drive the lower mold 4 and push rod 20 to reset.

[0025] Two sets of electric push rods 5 are symmetrically installed on the outer side of the base 1. The output ends of the two sets of electric push rods 5 are fixed with top plates. The bottom of the top plates is fixed with an upper mold 19 that matches the lower mold 4. The lower mold 4 is driven to rise and fall by the two sets of electric push rods 5.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A demolding device for meter box shells, characterized in that: The system includes a base (1), a support frame (2) is installed on the top of the base (1), the bottom of the support frame (2) is fixedly connected to the base (1) by multiple brackets (3), and a lower mold (4) is provided inside. A demolding assembly is installed on the top of the base (1). The demolding assembly includes a push rod (20), a collar (6) fixedly sleeved on the outside of the push rod (20), and a cam (7) installed on one side of the collar (6). A through hole is opened at the bottom of the support frame (2), and a slot is opened at the bottom of the lower mold (4). One end of the push rod (20) passes through the through hole and extends into the slot, and the other end is fixedly connected to a slider (8). A sliding groove (17) and a mounting groove (18) are sequentially opened on the top of the base (1). The slider (8) is slidably connected to the sliding groove (17), and a driving component for driving the cam (7) to rotate is installed in the mounting groove.

2. A demolding device for an electric meter cabinet housing according to claim 1, characterized in that: The inner wall of one side of the support frame (2) has a groove, and a buffer seat (9) is fixed in the groove. The buffer seat (9) has a buffer cavity, and a slide plate (10) is slidably installed in the buffer cavity. Multiple connecting rods (11) are evenly spaced at one end of the slide plate (10). A baffle (12) is slidably installed inside the support frame (2). The other ends of the multiple connecting rods (11) all pass through to the outside of the buffer seat (9) and are fixedly connected to the baffle (12).

3. The demolding device for an electric meter box housing according to claim 2, characterized in that: Multiple damping rods (13) are installed at equal intervals between the slide plate (10) and the inner wall of the buffer cavity, and springs (14) are sleeved on the outside of the damping rods (13).

4. The demolding device for an electric meter box housing according to claim 3, characterized in that: The driving component includes a motor (15) fixed in the mounting slot, a main gear installed at the output end of the motor (15) and a driven gear meshing with one side of the main gear. The lower end of the cam (7) is rotatably connected to the mounting slot (18) through a rotating shaft (16), and the driven gear is fixedly sleeved on the rotating shaft (16).

5. The demolding device for an electric meter box housing according to claim 4, characterized in that: Two sets of electric push rods (5) are symmetrically installed on the outer side of the base (1). The output ends of the two sets of electric push rods (5) are fixed with top plates. The bottom of the top plates is fixedly installed with an upper mold (19) that matches the lower mold (4).