A multi-injection mold for a button housing

Abstract

This utility model relates to the field of injection mold technology, specifically a multi-cavity injection mold for button housings. It includes a base, a movable mold plate and a fixed mold plate that close to form multiple cavities arranged in an array, and ejection mechanisms for ejecting multiple injection molds from the inner and outer sides of the fixed mold plate. By setting the ejection mechanisms and adopting a multi-cavity design for the fixed mold plate, the air system, through a four-way pipe and multiple air supply pipes, ensures that all cavities receive air simultaneously, thus enabling all ejection components to operate synchronously and eject all products at once, resulting in high efficiency. Furthermore, the use of pneumatic ejection instead of traditional rigid ejector pins provides a large contact area between the ejector plate and the product, resulting in uniform force distribution and effectively avoiding defects such as whitening, damage, or deformation during ejection, reducing the risk of product damage during the ejection process. By setting a material handling mechanism, multiple suction cups are used to pick up all products at once and transfer them to a collection box, achieving a fully automated process from ejection to material handling and collection.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a multi-injection mold for a button housing. Background Technology

[0002] Button housings are widely used components in electronic devices, home appliances, automotive instruments, and other products. They typically require high dimensional accuracy, good surface finish, and reliable structural strength. Currently, injection molding is the most common process for producing such parts.

[0003] Traditional button housing molds often use a single-cavity or multi-cavity (e.g., 2-4 cavities) design, resulting in low production efficiency and difficulty in meeting the needs of large-scale production. Existing injection molds use a rigid ejection structure for demolding button housings, which can easily damage the button housings. Furthermore, if a multi-cavity structure is used, it is inconvenient to remove materials from multiple injection molds after a single injection molding process. Therefore, a multi-injection mold for button housings is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-injection mold for button housings to solve at least one technical problem existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-injection mold for a button housing, comprising:

[0007] The base has a fixed template fixedly installed on the guide rod surface, and a movable template slidably installed on the guide rod surface. The movable template and the fixed template are closed to form multiple cavities arranged in an array. The inner and outer sides of the fixed template are provided with ejection mechanisms for ejecting multiple injection molds, and the outer side of the base is provided with a material handling mechanism for taking material from multiple injection molds.

[0008] The ejection mechanism includes multiple floats, ejector rods, springs, and an ejector plate;

[0009] The floating plate in the lifting state is used to drive the top plate to move up and down via the top rod, and the spring in the telescopic state is used to assist the top plate to move up and down smoothly.

[0010] Preferably, the ejection mechanism further includes a four-way pipe, three sets of gas supply pipes, and multiple tanks;

[0011] The four-way pipe is fixedly connected to the outer input end of the fixed template, the gas supply pipe is fixedly connected to the output end of the four-way pipe, and the trough is formed inside the cavity of the fixed template.

[0012] Preferably, the float slides up and down on the inner side of the trough, and the top rod is fixedly connected to the top of the float.

[0013] Preferably, the top plate is fixedly connected to the top of the top rod, the spring is sleeved on the outside of the top rod, and the two ends of the spring are fixedly connected to the trough and the float plate respectively.

[0014] Preferably, the output end of the air supply pipe is connected to the interior of the tank, and external compressed air enters the interior of multiple tanks through the four-way pipe and the three air supply pipes respectively.

[0015] Preferably, the material handling mechanism includes a support, a collection box, a movable frame, an air pump, an electric push rod, and multiple suction cups;

[0016] The bracket is fixedly connected to the outside of the base, the collection box is disposed on one side of the bracket, the electric push rod is fixedly installed on the outside of the bracket, the movable frame is fixedly connected to the output end of the electric push rod, and the movable frame has a hollow structure, the air pump is fixedly installed on the top of the movable frame, and the suction cup is disposed on the bottom side of the movable frame.

[0017] Preferably, the suction cup is connected to the output end of the movable frame, and the air pump after being powered on is used to deliver suction to the interior of the multiple suction cups through the movable frame.

[0018] Preferably, the output end of the electric push rod after being powered on is used to drive the movable frame to move, and the movable frame in the moving state is used to drive the multiple suction cups to move axially.

[0019] Preferably, the movable frame, which is moving towards the electric push rod, is located above the collection box, and the collection box is used to collect multiple injection molds that have completed material handling.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. By setting up an ejection mechanism and adopting a multi-cavity design for the fixed template, the air system, through a four-way pipe and multi-way air supply pipe design, ensures that all slots receive air simultaneously, thereby enabling all ejection components to operate synchronously and eject all products at once, resulting in high efficiency. Furthermore, the use of pneumatic ejection instead of traditional rigid ejector pins results in a large contact area between the ejector plate and the product, ensuring uniform force distribution and effectively avoiding defects such as whitening, damage, or deformation during ejection, thus reducing the risk of product damage during the ejection process.

[0022] 2. By setting up a material handling mechanism, multiple suction cups are used to pick up all products at once and transfer them to the collection box, realizing a fully automated process from ejection to material handling and collection. This greatly improves production efficiency, reduces manual intervention and costs, solves the problem of inconvenient material handling in multi-cavity molds, and does not damage the product surface. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present utility model.

[0024] Figure 2 This is a schematic diagram of the material handling mechanism of this utility model.

[0025] Figure 3 This is a schematic diagram of the ejection mechanism of this utility model.

[0026] Figure 4 This utility model Figure 3 A schematic diagram of structure A in the diagram.

[0027] In the diagram: 1. Base; 2. Moving template; 3. Fixed template; 4. Ejection mechanism; 401. Four-way pipe; 402. Tank; 403. Air supply pipe; 404. Float plate; 405. Push rod; 406. Spring; 407. Top plate; 5. Material handling mechanism; 501. Support; 502. Collection box; 503. Moving frame; 504. Air pump; 505. Suction cup; 506. Electric push rod. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] 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.

[0032] Please see Figures 1-4 This utility model provides an embodiment of a multi-injection mold for a button housing:

[0033] A multi-injection mold for a button housing, comprising:

[0034] The base 1 has a fixed template 3 fixedly installed on the guide rod surface of the base 1. The movable template 2 is slidably installed on the guide rod surface of the base 1. The movable template 2 and the fixed template 3 are closed to form multiple cavities arranged in an array. The inner and outer sides of the fixed template 3 are provided with an ejection mechanism 4 for ejecting multiple injection molds. The outer side of the base 1 is provided with a material taking mechanism 5 for taking material from multiple injection molds.

[0035] The ejection mechanism 4 includes multiple floats 404, ejector rods 405, springs 406 and a top plate 407;

[0036] The floating plate 404 in the lifting state is used to drive the top plate 407 to move up and down via the top rod 405, and the retractable spring 406 is used to assist the top plate 407 in moving up and down smoothly.

[0037] The ejection mechanism 4 also includes a four-way pipe 401, three sets of gas supply pipes 403, and multiple tanks 402;

[0038] The four-way pipe 401 is fixedly connected to the outer input end of the fixed template 3, and the air supply pipe 403 is fixedly connected to the output end of the four-way pipe 401. The groove 402 is formed inside the cavity of the fixed template 3. The above structural design allows the four-way pipe 401 to split the compressed air into three sets of air supply pipes 403. The compressed air is transported through each set of air supply pipes 403 to the bottom of the groove 402 inside the fixed template 3 corresponding to each cavity. The groove 402 is a closed or semi-closed chamber. The compressed air injected into the groove 402 generates pressure.

[0039] The float plate 404 slides up and down inside the tank 402, and the top rod 405 is fixedly connected to the top of the float plate 404. The above structural design causes the compressed air injected into the tank 402 to generate pressure, which pushes the float plate 404, which can slide up and down in the tank 402, to move upward. The top rod 405 then rises synchronously, and the rising top rod 405 drives the top plate 407 to move upward.

[0040] The top plate 407 is fixedly connected to the top of the push rod 405, and the spring 406 is sleeved on the outside of the push rod 405. The two ends of the spring 406 are fixedly connected to the groove 402 and the float plate 404 respectively. The above structural design allows the spring 406 to provide an elastic force opposite to the air pressure thrust, which can ensure that the ejection process is smooth and gentle, rather than a sudden rigid impact, effectively preventing product damage. At the same time, the spring 406 can balance the pressure of each ejection point, ensuring that the products of multiple cavities are ejected synchronously and evenly, preventing product warping or jamming caused by uneven ejection.

[0041] In one preferred embodiment, the output end of the air supply pipe 403 is connected to the interior of the tank 402, and external compressed air enters the interior of multiple tanks 402 through the four-way pipe 401 and the three air supply pipes 403 respectively. The above structural design allows the external compressed air source to be connected to the input end of the four-way pipe 401 fixed on the outside of the template 3 through a pipe, and the four-way pipe 401 diverts the compressed air to the three sets of air supply pipes 403.

[0042] In one preferred embodiment, the material handling mechanism 5 includes a support 501, a collection box 502, a movable frame 503, an air pump 504, an electric push rod 506, and a plurality of suction cups 505;

[0043] The bracket 501 is fixedly connected to the outside of the base 1. The collection box 502 is located on one side of the bracket 501. The electric push rod 506 is fixedly installed on the outside of the bracket 501. The movable frame 503 is fixedly connected to the output end of the electric push rod 506, and the movable frame 503 has a hollow structure. The air pump 504 is fixedly installed on the top of the movable frame 503, and the suction cup 505 is located on the bottom side of the movable frame 503. The above structural design allows the air pump 504 fixed on its top to start after the movable frame 503 is positioned. The air pump 504 operates through the hollow internal channel of the movable frame 503. Negative pressure (suction) is applied to multiple suction cups 505 installed at the bottom of the movable frame 503. Each suction cup 505 is aligned with a product being pushed out. Under the action of negative pressure, the suction cups 505 firmly adhere to all the button housing products at the same time. The electric push rod 506 is activated again, moving the movable frame 503 and all the products below it to the top of the collection box 502. After reaching the predetermined position, the air pump 504 stops working or switches to blowing mode to eliminate the negative pressure in the suction cups 505. The products automatically fall off under the action of gravity and fall neatly into the collection box 502.

[0044] In one preferred embodiment, the suction cup 505 is connected to the output end of the movable frame 503, and the energized air pump 504 is used to deliver suction to the inside of the multiple suction cups 505 through the movable frame 503. The above structural design allows the air pump 504 to provide negative pressure (suction) to the multiple suction cups 505 installed at the bottom of the movable frame 503 through the hollow internal channel of the movable frame 503.

[0045] In one preferred embodiment, the output end of the energized electric push rod 506 is used to drive the moving frame 503 to move. The moving frame 503 in the moving state is used to drive multiple suction cups 505 to move axially. The above structural design means that when the electric push rod 506 is energized and the output end of the electric push rod 506 in the running state extends or retracts, it drives the moving frame 503 to move in the horizontal direction.

[0046] In one preferred embodiment, the movable frame 503, which is moving towards the electric push rod 506, is located above the collection box 502. The collection box 502 is used to collect multiple injection molds that have completed material collection. The above structural design causes the air pump 504 to stop working or switch to blowing mode, eliminating the negative pressure in the suction cup 505. The product automatically falls off under the action of gravity and neatly falls into the collection box 502, completing the unified collection.

[0047] The working principle of this utility model is as follows: First, an external compressed air source is connected to the input end of a four-way pipe 401 fixed on the outside of the fixed template 3 through a pipeline. The four-way pipe 401 divides the compressed air into three sets of air supply pipes 403. The compressed air is transported through each set of air supply pipes 403 to the bottom of the groove 402 corresponding to each cavity inside the fixed template 3. The groove 402 is a closed or semi-closed chamber. The compressed air injected into the groove 402 generates pressure, which pushes the floating plate 404, which can slide up and down inside the groove 402, to move upward. Then, the push rod 405 rises synchronously. The rising push rod 405 drives the top plate 407 to move upward. The rising top plate 407 then directly contacts the inner surface (not the outer surface) of the button housing product. Plate 407 smoothly ejects the product from the cavity. During this process, spring 406, which is sleeved on the outside of ejector rod 405, plays a key role. It provides an elastic force opposite to the air pressure thrust, which can ensure that the ejection process is smooth and gentle, rather than a sudden rigid impact, effectively preventing product damage. At the same time, spring 406 can balance the pressure at each ejection point, ensuring that the products in multiple cavities are ejected synchronously and evenly, preventing product warping or jamming caused by uneven ejection. When the ejection process is completed, the compressed air in the air supply pipe 403 is discharged (depressurized), and the restoring force of the compressed spring 406 will push the float plate 404 to move downward, thereby driving ejector rod 405 and ejector plate 407 to descend and return to the initial position, preparing for the next injection cycle.

[0048] When multiple injection molds need to be automatically unloaded at once, the electric push rod 506 is first energized. The output end of the electric push rod 506 extends or retracts, driving the moving frame 503 to move horizontally. Its movement path is designed to first move directly above the multiple button housing products already lifted by the ejection mechanism 4. Once the moving frame 503 is positioned, the air pump 504 fixed to its top is started. The air pump 504, through the hollow internal channel of the moving frame 503, pumps air to multiple suction devices installed at the bottom of the moving frame 503. The suction cup 505 provides negative pressure (suction). Each suction cup 505 is aligned with a product being pushed out. Under the action of negative pressure, the suction cup 505 firmly adheres to all the button housing products at the same time. The electric push rod 506 moves again, moving the moving frame 503 and all the products below it to the top of the collection box 502. After reaching the predetermined position, the air pump 504 stops working or switches to blowing mode to eliminate the negative pressure in the suction cup 505. The products automatically fall off under the action of gravity and fall neatly into the collection box 502, completing the unified collection.

[0049] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-injection mold for a button housing, characterized in that, It includes: The base (1) has a fixed template (3) fixedly installed on the guide rod surface. The guide rod surface of the base (1) has a movable template (2) slidably installed up and down. The movable template (2) and the fixed template (3) are closed to form a plurality of cavities arranged in an array. The inner and outer sides of the fixed template (3) are provided with an ejection mechanism (4) for ejecting multiple injection molds. The outer side of the base (1) is provided with a material taking mechanism (5) for taking material from multiple injection molds. The ejection mechanism (4) includes multiple floats (404), ejector rods (405), springs (406), and a top plate (407); The floating plate (404) in the lifting state is used to drive the top plate (407) to move up and down via the top rod (405), and the spring (406) in the telescopic state is used to assist the top plate (407) to move up and down smoothly.

2. The multi-injection mold for a button housing according to claim 1, characterized in that: The ejection mechanism (4) also includes a four-way pipe (401), three sets of gas transmission pipes (403), and multiple tanks (402); The four-way pipe (401) is fixedly connected to the outer input end of the fixed template (3), the gas supply pipe (403) is fixedly connected to the output end of the four-way pipe (401), and the groove (402) is formed inside the cavity of the fixed template (3).

3. The multi-injection mold for a button housing according to claim 2, characterized in that: The float (404) slides up and down inside the tank (402), and the top rod (405) is fixedly connected to the top of the float (404).

4. The multi-injection mold for a button housing according to claim 2, characterized in that: The top plate (407) is fixedly connected to the top of the top rod (405), the spring (406) is sleeved on the outside of the top rod (405), and the two ends of the spring (406) are fixedly connected to the groove (402) and the float (404) respectively.

5. A multi-injection mold for a button housing according to claim 2, characterized in that: The output end of the air supply pipe (403) is connected to the interior of the tank (402), and external compressed air enters the interior of multiple tanks (402) through the four-way pipe (401) and the three air supply pipes (403).

6. The multi-injection mold for a button housing according to claim 1, characterized in that: The material handling mechanism (5) includes a bracket (501), a collection box (502), a movable frame (503), an air pump (504), an electric push rod (506), and multiple suction cups (505); The bracket (501) is fixedly connected to the outside of the base (1), the collection box (502) is disposed on one side of the bracket (501), the electric push rod (506) is fixedly installed on the outside of the bracket (501), the movable frame (503) is fixedly connected to the output end of the electric push rod (506), and the movable frame (503) has a hollow structure. The air pump (504) is fixedly installed on the top of the movable frame (503), and the suction cup (505) is disposed on the bottom side of the movable frame (503).

7. A multi-injection mold for a button housing according to claim 6, characterized in that: The suction cup (505) is connected to the output end of the movable frame (503), and the air pump (504) after being powered on is used to deliver suction to the inside of the multiple suction cups (505) through the movable frame (503).

8. A multi-injection mold for a button housing according to claim 6, characterized in that: The output end of the electric push rod (506) after being powered on is used to drive the moving frame (503) to move. The moving frame (503) in the moving state is used to drive the multiple suction cups (505) to move axially.

9. A multi-injection mold for a button housing according to claim 6, characterized in that: The movable frame (503), which is in a state of moving towards the electric push rod (506), is located above the collection box (502), and the collection box (502) is used to collect multiple injection molds that have completed material picking.

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