Leakage protector shell demolding mold

Abstract

The utility model provides a demoulding mould for a shell of a leakage protector. The demoulding mould comprises a table top, a lower mould, a positioning column and an upper mould, a first electric push rod is embedded in the middle of the table top, the driving end of the first electric push rod faces upwards and is provided with an ejector block, and a bottom plate is fixed to the upper portion of the ejector block; the lower mold is arranged on the positioning table, an injection molding groove is formed in the middle of the lower mold, the lower mold is located above the bottom plate, the lower mold comprises a first lower mold block and a second lower mold block, and the first lower mold block and the second lower mold block are slidably arranged on the table top and form the injection molding groove when folded; the four positioning columns are symmetrically arranged on the two sides of the lower die, and the top ends of the positioning columns penetrate through the upper die and are in sliding connection with the upper die. The lower mold is designed into a split type, during demolding, the first lower mold block and the second lower mold block move towards the two sides, so that the side face of the shell is separated from the lower mold, when the bottom plate jacks up the shell, the side face of the shell cannot rub an injection molding groove, the outer surface is intact, and follow-up machining is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding demoulding, in particular to a demoulding die for a housing of a leakage protector. Background Art

[0002] The shell material of the leakage protector can be made of a variety of plastic materials, such as ABS, PC or PP, etc. These materials can be processed by injection molding to produce a shell that meets the performance and design requirements of the leakage protector.

[0003] When preparing the shell of the leakage protector by injection molding process, the corresponding injection mold is needed. The traditional shell injection mold needs to be manually demolded after the injection molding is completed, which is easy to damage the shell and has low efficiency. The prior art discloses an injection mold for the production of the leakage protector shell, including a table, a lower mold, an injection molding groove, a positioning column, an upper mold, etc. An electric push rod is arranged under the injection molding groove of the lower mold, and the end of the electric push rod has a push block. After the injection molding, the push block pushes the shell upward to separate it from the lower mold, thereby solving the problem of low efficiency of manual demolding damaging the shell.

[0004] The defect of the prior art is that when the top block lifts the shell, the side of the shell rubs against the injection molding groove, and the surface is often damaged, which makes subsequent processing complicated and is not conducive to spraying the shell surface. In addition, after the shell is separated from the lower mold, manual material removal is required, which is inconvenient to operate.

[0005] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The utility model provides a demoulding die for a housing of a leakage protector, which is used to solve the above problem.

[0007] A technical solution adopted by the utility model is: to provide a demoulding mold for a housing of a leakage protector, comprising: a table, a lower mold, a positioning column and an upper mold;

[0008] A first electric push rod is embedded in the middle of the table top, a driving end of the first electric push rod faces upward, a top block is provided, and a bottom plate is fixed above the top block;

[0009] The lower mold is arranged on the positioning table, and an injection molding groove is arranged in the middle thereof, which is located above the bottom plate. The lower mold comprises a first lower module and a second lower module, which are slidably arranged on the table, and the injection molding groove is formed when they are closed, and the entire bottom plate is leaked when they are separated;

[0010] There are four positioning posts, which are symmetrically arranged on both sides of the lower mold, and the top ends of the positioning posts penetrate the upper mold and are slidably connected to the upper mold.

[0011] Furthermore, the upper surface of the bottom plate is flush with the table top, and when the first lower module and the second lower module are closed, the bottom plate covers the range of the injection molding slot.

[0012] Furthermore, blanking inserts are provided on the outer sides of the first lower module and the second lower module. The blanking inserts slide along with the first lower module or the second lower module and have an inclined surface extending outward and downward.

[0013] Furthermore, the outer sides of the first lower module and the second lower module are each provided with a lower step, the blanking insert is provided with an upper step, both ends of the upper step and the lower step are provided with pin holes, and the first lower module and the second lower module are connected together with the blanking insert on the same side through positioning pins.

[0014] Furthermore, a second electric push rod is arranged on the left side of the table top, and a driving end of the second electric push rod faces right and is provided with a push plate, and the push plate points to the lifted injection molded part.

[0015] Furthermore, the right side of the second lower module has an inclined surface extending outward and downward to facilitate material dropping.

[0016] The beneficial effects of the demoulding mold for the housing of the leakage protector of the utility model are:

[0017] 1. The lower mold is designed to be split, including the first lower module and the second lower module. The two can slide on the table and close together to form an injection groove. When demolding, the first lower module and the second lower module move to both sides to separate the side of the shell from the lower mold. When the bottom plate lifts the shell, the side of the shell will not rub against the injection groove, the outer surface is intact, and subsequent processing is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a demoulding mold for a housing of a leakage protector before demoulding in the first embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the separation of the lower mold in the first embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the bottom plate lifting injection molding part in the first embodiment of the utility model;

[0021] Figure 4 It is a top view of the mold in the first embodiment of the utility model (excluding the upper mold);

[0022] Figure 5 This is a schematic diagram of the mold before demoulding in the second embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the bottom plate lifting injection molded part in the second embodiment of the utility model;

[0024] The markings of the components in the accompanying drawings are as follows: 1. table, 2. lower mold, 3. positioning column, 4. upper mold, 5. first electric push rod, 6. second electric push rod, 7. injection molded part, 21. first lower module, 22. second lower module, 23. injection molding groove, 24. blanking insert, 25. positioning pin, 51. top block, 52. bottom plate, 61. push plate. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", "horizontal", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention. They cannot indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] See also Figures 1 to 4 The first embodiment of the utility model provides a demoulding mold for a leakage protector housing, comprising: a table 1, a lower mold 2, a positioning column 3 and an upper mold 4;

[0028] A first electric push rod 5 is embedded in the middle of the table 1. The driving end of the first electric push rod 5 is upward and is provided with a top block 51. A bottom plate 52 is fixed above the top block 51. The upper surface of the bottom plate 52 is flush with the table 1, which is the support surface of the lower mold 2 and is used to lift the injection molded part upward after the injection molding is completed.

[0029] The lower mold 2 is arranged on the positioning table, and an injection molding groove 23 is arranged in the middle thereof, which is located above the bottom plate 52. The lower mold 2 includes a first lower module 21 and a second lower module 22, which are slidably arranged on the table 1. The first lower module 21 and the second lower module 22 slide toward the middle of the table 1 and close together to form the injection molding groove 23. At this time, the bottom plate 52 covers the range of the injection molding groove 23. The first lower module 21 and the second lower module 22 slide to both sides and separate, and then detach from the injection molded part and leak out of the entire bottom plate 52.

[0030] There are four positioning posts 3 symmetrically arranged on both sides of the lower mold 2 , and the top ends thereof penetrate the upper mold 4 and are slidably connected to the upper mold 4 . The middle portion of the upper mold 4 corresponding to the injection groove 23 has an injection hole and an exhaust hole.

[0031] Specifically, the first lower module 21 and the second lower module 22 are driven by a hydraulic mechanism or a motor mechanism, and both driving modes are applicable to injection molds.

[0032] Specifically, a cooling pipe is provided inside the table top 1 to cooperate with the heat dissipation structure outside the table top 1 to cool the structure after the injection molding is completed.

[0033] The outer sides of the first lower module 21 and the second lower module 22 are both provided with blanking inserts 24, and the blanking inserts 24 slide along with the first lower module 21 or the second lower module 22, and have an inclined surface extending outward and downward;

[0034] When the injection molding is completed, the first lower module and the second lower module move to both sides, separate from the injection molded parts and just open the width of the bottom plate. The first electric push rod lifts the bottom plate to make the upper surface of the bottom plate flush with the first lower module and the second lower module. The staff can use the long-handled push rod to push the injection molded parts from any side, and the injection molded parts slide along the inclined surface to the blanking box or transmission structure.

[0035] Specifically, the outer sides of the first lower module 21 and the second lower module 22 are both provided with lower steps, and the blanking insert 24 is provided with upper steps. Pin holes are provided at both ends of the upper and lower steps. During installation, the lower steps of the first lower module 21 and the second lower module 22 are overlapped with the upper steps of the blanking insert 24 on the same side and connected together by the positioning pin 25.

[0036] See also Figure 5 and Figure 6 In the second embodiment of the utility model, a second electric push rod 6 is also provided on the left side of the table 1, and the lower mold 2 is adjusted:

[0037] The driving end of the second electric push rod 6 faces rightward and is provided with a push plate 61, which points to the lifted injection molded part.

[0038] The right side of the second lower module 22 has an inclined surface extending outward and downward for blanking;

[0039] When the injection molding is completed, the first lower module and the second lower module move to both sides, separate from the injection molded part and just open the width of the bottom plate, the first electric push rod lifts the bottom plate, so that the upper surface of the bottom plate is flush with the first lower module and the second lower module, the second electric push rod extends out and taps the injection molded part, the injection molded part slides to the right and slides along the inclined surface of the second lower module to the blanking box or the transmission structure.

[0040] The beneficial effects of the demoulding mold for the housing of the leakage protector of the utility model are:

[0041] 1. The lower mold is designed to be split, including the first lower module and the second lower module. The two can slide on the table and close together to form an injection groove. When demoulding, the first lower module and the second lower module move to both sides to separate the side of the shell from the lower mold. When the bottom plate lifts the shell, the side of the shell will not rub against the injection groove, the outer surface is intact, and subsequent processing is convenient;

[0042] 2. Set up a second electric push rod to complete the blanking of injection molded parts, further reduce manual operations and improve work efficiency.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A demoulding mold for a leakage protector housing, characterized in that: include: Table, lower mold, positioning column and upper mold; A first electric push rod is embedded in the middle of the table top, a driving end of the first electric push rod faces upward, a top block is provided, and a bottom plate is fixed above the top block; The lower mold is arranged on the positioning table, and an injection molding groove is arranged in the middle thereof, which is located above the bottom plate. The lower mold comprises a first lower module and a second lower module, which are slidably arranged on the table, and the injection molding groove is formed when they are closed; There are four positioning posts, which are symmetrically arranged on both sides of the lower mold, and the top ends of the positioning posts penetrate the upper mold and are slidably connected to the upper mold.

2. A demoulding mold for a leakage protector housing according to claim 1, characterized in that: The upper surface of the bottom plate is flush with the table top, and when the first lower module and the second lower module are closed, the bottom plate covers the injection molding slot range.

3. A demoulding mold for a leakage protector housing according to any one of claims 1 or 2, characterized in that: The outer sides of the first lower module and the second lower module are both provided with blanking inserts, and the blanking inserts slide along with the first lower module or the second lower module and have an inclined surface extending outward and downward.

4. A demoulding die for a leakage protector housing according to claim 3, characterized in that: The outer sides of the first lower module and the second lower module are both provided with lower steps, and the blanking insert is provided with upper steps. Both ends of the upper step and the lower step are provided with pin holes, and the first lower module and the second lower module are connected to the blanking insert on the same side through positioning pins.

5. A demoulding die for a leakage protector housing according to any one of claims 1 or 2, characterized in that: A second electric push rod is also arranged on the left side of the table top, and a driving end of the second electric push rod faces rightward and is provided with a push plate, and the push plate points to the lifted injection molded part.

6. A demoulding die for a leakage protector housing according to claim 5, characterized in that: The right side of the second lower module has an inclined surface extending outward and downward.

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