Miniature circuit breaker shell forming die

Abstract

The utility model discloses a miniature circuit breaker shell forming die, and relates to the technical field of dies, the miniature circuit breaker shell forming die comprises an upper die, the bottom of the upper die is movably connected with a lower die, the inner side of the lower die is provided with two cut-off mechanisms, each cut-off mechanism comprises a fixing block, the outer side of each fixing block is fixedly connected with the inner side of the lower die, and the outer side of each fixing block is fixedly connected with the inner side of the lower die. The bottom of the inner side of the fixing block is fixedly and movably connected with a first spring, the top of the first spring is fixedly connected with a limiting block, the top of the limiting block is rotationally connected with a rotating cylinder, the top of the rotating cylinder is rotationally connected with a pressing block, the top of the pressing block is rotationally connected with a check block, and the bottom of the check block is slidably connected with the rotating cylinder and the inner side of the limiting block. And the outer side of the rotary drum is rotationally connected with the inner side of a fixing block, two intercepting mechanisms are also arranged on the inner side of the upper die, through the intercepting mechanisms, the effects of conveniently adjusting a throttling valve and rapidly replacing runners of different specifications are achieved, and the problems that in a traditional die, a throttling mechanism is inconvenient to operate, and the runners cannot be replaced and adjusted are solved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a miniature circuit breaker shell forming mold. Background Art

[0002] The mold for forming the shell of a miniature circuit breaker is a key tool for producing the shell of a miniature circuit breaker. It is usually manufactured using precision casting or die-casting processes to ensure the dimensional accuracy and surface quality of the shell. During the molding process, the mold needs to withstand high temperature and high pressure to ensure that the molten material fully fills the mold cavity and forms the required shell shape. Well-made molds can improve production efficiency, product quality and safety;

[0003] The existing miniature circuit breaker shell molding molds generally have problems such as inconvenient throttle valve adjustment and inability to replace different flow channels. The throttle valve is an important component in the mold, which is used to control the flow of molten material, thereby affecting the molding quantity of the shell. However, the existing throttle valve needs to be adjusted using tools, which is time-consuming. The existing molds are usually formed in one go and different flow channels cannot be replaced, which limits the flexibility and applicability of the mold. Utility Model Content

[0004] The main purpose of the utility model is to provide a miniature circuit breaker housing forming die, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A miniature circuit breaker housing forming mold, comprising an upper mold, the bottom of the upper mold movably connected to the lower mold, the inner side of the lower mold is provided with two shut-off mechanisms, the shut-off mechanisms include a fixed block, the outer side of the fixed block is fixedly connected to the inner side of the lower mold, the inner bottom of the fixed block is movably connected to a spring, the top of the spring is fixedly connected to a limit block, the top of the limit block is rotatably connected to a rotating cylinder, the top of the rotating cylinder is rotatably connected to a pressure block, the top of the pressure block is rotatably connected to a stopper, the bottom of the stopper is slidably connected to the inner side of the rotating cylinder and the limiter, the outer side of the rotating cylinder is rotatably connected to the inner side of the fixed block, and the inner side of the upper mold is also provided with two shut-off mechanisms.

[0007] As a further solution of the utility model, the top of the lower mold is fixedly connected to two flow channels, the two ends of the two flow channels are rotatably connected to two knobs, the bottom of the knob is movably connected to spring 2, the bottom of spring 2 is movably connected to the lower mold, and the bottom of the upper mold is also fixedly connected to the two flow channels.

[0008] As a further solution of the utility model, a disc-shaped protrusion is provided on the top of the knob, and a circular protrusion is provided on one side of the bottom of the knob.

[0009] As a further solution of the utility model, a rod-shaped protrusion is provided at the bottom of the stopper, and a round block is provided at the bottom of the rod-shaped protrusion, and a through hole is opened on the inner side of the rotating drum.

[0010] As a further solution of the utility model, an inclined plate-shaped protrusion is provided on the inner side of the fixed block, an inclined plate-shaped protrusion is provided on the outer side of the rotating cylinder, and an inclined plate-shaped protrusion is provided on the bottom of the pressing block.

[0011] As a further solution of the utility model, a semicircular groove is formed on the top of the fixing block, and a semicircular groove is also formed on the top of the stop block.

[0012] As a further solution of the utility model, a circular protrusion is provided on the top of the limit block, and a circular hole is opened on the bottom of the rotating drum.

[0013] The beneficial effects of the utility model are as follows: by setting the cut-off mechanism, the miniature circuit breaker housing molding die realizes the function of adjusting the opening and closing of the throttle valve by simply pressing, making the die more humane and easy to operate. The throttle valve can be adjusted without professional tools, thereby quickly realizing the control of the melt flow and improving the flexibility and production efficiency of the die;

[0014] By setting up a detachable flow channel, the miniature circuit breaker shell molding mold has acquired the function of replacing flow channels of different specifications, which improves the flexibility and applicability of the mold. The flow channel can be quickly replaced according to production needs to achieve the production of shells of different sizes and shapes, which helps to improve production efficiency, reduce production costs, and meet diversified market needs. At the same time, the detachable flow channel facilitates mold maintenance and extends the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a miniature circuit breaker housing molding die of the utility model;

[0016] Figure 2 This is an internal structure diagram of a miniature circuit breaker housing molding die of the utility model;

[0017] Figure 3 This is an enlarged view of a knob of a miniature circuit breaker housing molding die of the utility model;

[0018] Figure 4 This is an enlarged view of a stopper of a miniature circuit breaker housing forming die of the utility model.

[0019] In the figure: 1. upper die; 2. lower die; 3. shut-off mechanism; 4. fixed block; 5. spring 1; 6. limit block; 7. rotating cylinder; 8. pressure block; 9. stop block; 10. flow channel; 11. knob; 12. spring 2. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, a miniature circuit breaker housing molding die comprises an upper die 1, the bottom of the upper die 1 is movably connected to a lower die 2, two shut-off mechanisms 3 are arranged on the inner side of the lower die 2, the shut-off mechanism 3 comprises a fixed block 4, the outer side of the fixed block 4 is fixedly connected to the inner side of the lower die 2, the inner bottom of the fixed block 4 is movably connected to a spring 5, the top of the spring 5 is fixedly connected to a limit block 6, the top of the limit block 6 is rotatably connected to a rotating cylinder 7, the top of the rotating cylinder 7 is rotatably connected to a pressure block 8, the top of the pressure block 8 is rotatably connected to a stopper 9, the bottom of the stopper 9 is slidably connected to the inner side of the rotating cylinder 7 and the limiter 6, the outer side of the rotating cylinder 7 is rotatably connected to the inner side of the fixed block 4, and two shut-off mechanisms 3 are also arranged on the inner side of the upper die 1.

[0022] In this embodiment, the top of the lower mold 2 is fixedly connected to two flow channels 10, the two ends of the two flow channels 10 are rotatably connected to two knobs 11, the bottom of the knob 11 is movably connected to a spring 2 12, the bottom of the spring 2 12 is movably connected to the lower mold 2, and the bottom of the upper mold 1 is also fixedly connected to the two flow channels 10.

[0023] By providing the flow channel 10 that is easy to disassemble and assemble, the flow channels 10 of different diameters can be replaced according to actual usage requirements to meet different usage requirements.

[0024] In this embodiment, a disc-shaped protrusion is provided on the top of the knob 11 , and a circular protrusion is provided on one side of the bottom of the knob 11 .

[0025] The knob 11 is constrained by the circular protrusion at the bottom and the internal holes and grooves of the upper mold 1 and the lower mold 2, so as to maintain or release the restriction on the knob 11. The circular protrusion on the top of the knob 11 is made of a material with a certain elastic deformation ability.

[0026] In this embodiment, a rod-shaped protrusion is provided at the bottom of the stopper 9 , and a round block is provided at the bottom of the rod-shaped protrusion, and a through hole is opened on the inner side of the rotating drum 7 .

[0027] The stopper 9 is connected to the rotating drum 7 via a rod-shaped protrusion at the bottom, so as to rotate synchronously with the rotating drum 7 .

[0028] In this embodiment, an inclined plate-shaped protrusion is provided on the inner side of the fixing block 4 , an inclined plate-shaped protrusion is provided on the outer side of the rotating drum 7 , and an inclined plate-shaped protrusion is provided on the bottom of the pressing block 8 .

[0029] The inclined plate protrusion of the fixed block 4 can guide the moving direction of the rotating drum 7, so that the rotating drum 7 can rotate in the correct direction.

[0030] In this embodiment, a semicircular groove is formed on the top of the fixing block 4 , and a semicircular groove is formed on the top of the stopper 9 as well.

[0031] The grooves on the top of the fixing block 4 and the stopper 9 can accommodate the flow of the molten material during injection molding, and the flow of the molten material can be blocked by changing the direction of the grooves.

[0032] In this embodiment, a circular protrusion is provided on the top of the limiting block 6, and a circular hole is opened on the bottom of the rotating drum 7.

[0033] The limiting block 6 is connected to the rotating drum 7 via a circular protrusion on the top, so that the rotating drum 7 can rotate around the axis of the limiting block 6 .

[0034] It should be noted that the utility model is a miniature circuit breaker housing forming die, which can simplify the operation steps of the throttle valve when in use, so that the staff can operate it more conveniently. The specific implementation method is to press the stopper 9, and the stopper 9 will drive the pressing block 8 to move together during the downward movement. The pressing block 8 is constrained by the fixed block 4 and can only move vertically. In the process of moving downward, the inclined plate pushes the inclined plate of the rotating drum 7 to move downward;

[0035] When the rotating drum 7 moves downward, the limit block 6 squeezes the spring 5 to make it contract. Since the inclined plate of the rotating drum 7 is blocked by the inclined plate of the fixed block 4, it can only move up and down. When the inclined plate of the rotating drum 7 moves down and out of the inclined plate range of the fixed block 4, it will be squeezed by the inclined surface of the pressure block 8, thereby causing deflection. When the pressure block 8 moves down to the limit of its stroke, the pressure on it is released, and the limit block 6 and the rotating drum 7 will move upward under the action of the spring 5. During the upward movement of the rotating drum 7, the top of its inclined plate will be guided by the inclined plate of the fixed block 4 to make it continue to deflect until it deflects to a certain angle and is inserted into the gap between the inclined plates of the fixed block 4.

[0036] Then, under the action of spring 1 5, it continues to move upward and pushes the pressing block 8 and the stopper 9 upward to reset them. During the deflection process, the rotating drum 7 transmits the force to the rod-shaped protrusion of the stopper 9 through the inner hole, so that the stopper 9 rotates and the groove on the top of the stopper 9 changes direction, thereby playing a role of interception. By repeatedly pressing the stopper 9, the stopper 9 can move in a circular motion, thereby maintaining or releasing the interception of the molten material.

[0037] The flow channel 10 can be replaced by the knob 11. The specific implementation method is to press the knob 11 so that the bottom of the circular protrusion at the bottom contacts the lower mold 2, and then rotate the knob 11. After the knob 11 is rotated to a certain angle, the circular protrusion will rotate to a position where there is no obstruction at the top. At this time, the knob 11 can be moved upward to be taken out. After the four knobs 11 are removed in the same way, the fixation of the flow channel 10 can be contacted, so that the flow channel 10 can be removed, so as to perform maintenance or replace the flow channels 10 of different diameters;

[0038] Put the maintained flow channel 10 or the new flow channel 10 back to its original position, insert the bottoms of the four knobs 11 through the round holes of the flow channel 10 and then into the holes of the mold, then turn the knob 11 to rotate the round protrusion at the bottom to a position where the top is blocked, then release the knob 11, the round protrusion will move upward under the action of the spring 2 12, and after moving up a certain distance, the top will be blocked by the inner wall of the mold and stop moving, the round hole of the flow channel 10 will be blocked by the disc-shaped protrusion of the knob 11 to prevent foreign matter from entering the hole, and the disc-shaped protrusion without elasticity can adapt to the small height change caused by the rebound of the knob 11;

[0039] By setting the shut-off mechanism 3, the miniature circuit breaker housing molding mold not only has the function of conveniently adjusting the throttle valve, but also has the function of replacing different flow channels 10, so that during the production process, the opening and closing of the throttle valve can be quickly adjusted as needed to adapt to different production needs. At the same time, the design of the replaceable flow channel 10 enables the mold to adapt to the production of miniature circuit breaker housings of different specifications, thereby improving production efficiency and product quality.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A miniature circuit breaker housing molding die, comprising an upper die (1), the bottom of the upper die (1) being movably connected to a lower die (2), characterized in that: Two shut-off mechanisms (3) are provided on the inner side of the lower mold (2). The shut-off mechanisms (3) include a fixed block (4). The outer side of the fixed block (4) is fixedly connected to the inner side of the lower mold (2). The inner bottom of the fixed block (4) is movably connected to a spring (5). The top of the spring (5) is fixedly connected to a limit block (6). The top of the limit block (6) is rotatably connected to a rotating cylinder (7). The top of the rotating cylinder (7) is rotatably connected to a pressure block (8). The top of the pressure block (8) is rotatably connected to a stop block (9). The bottom of the stop block (9) is slidably connected to the inner sides of the rotating cylinder (7) and the limit block (6). The outer side of the rotating cylinder (7) is rotatably connected to the inner side of the fixed block (4). The inner side of the upper mold (1) is also provided with two shut-off mechanisms (3).

2. The miniature circuit breaker housing forming die according to claim 1, characterized in that: The top of the lower mold (2) is fixedly connected to two flow channels (10), the two ends of the two flow channels (10) are rotatably connected to two knobs (11), the bottom of the knob (11) is movably connected to a second spring (12), the bottom of the second spring (12) is movably connected to the lower mold (2), and the bottom of the upper mold (1) is also fixedly connected to the two flow channels (10).

3. The miniature circuit breaker housing forming die according to claim 2, characterized in that: A disc-shaped protrusion is provided on the top of the knob (11), and a circular protrusion is provided on one side of the bottom of the knob (11).

4. The miniature circuit breaker housing forming die according to claim 1, characterized in that: A rod-shaped protrusion is provided at the bottom of the stopper (9), and a round block is provided at the bottom of the rod-shaped protrusion. A through hole is provided on the inner side of the rotating cylinder (7).

5. The miniature circuit breaker housing forming die according to claim 1, characterized in that: An inclined plate-shaped protrusion is provided on the inner side of the fixed block (4), an inclined plate-shaped protrusion is provided on the outer side of the rotating cylinder (7), and an inclined plate-shaped protrusion is provided on the bottom of the pressing block (8).

6. The miniature circuit breaker housing forming die according to claim 1, characterized in that: The top of the fixing block (4) is provided with a semicircular groove, and the top of the stop block (9) is also provided with a semicircular groove.

7. The miniature circuit breaker housing forming die according to claim 1, characterized in that: A circular protrusion is provided on the top of the limit block (6), and a circular hole is provided on the bottom of the rotating drum (7).

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