Plug shell injection mold

Abstract

The utility model discloses a plug shell injection mold which comprises a movable mold seat plate and a fixed mold seat plate, a fixed mold block is fixedly installed on the lower side of the fixed mold seat plate, a rectangular fixed mold insert is installed on the upper side of the fixed mold block in an embedded mode, and a sprue penetrating and extending into the fixed mold insert is fixedly installed in the middle of the fixed mold seat plate. Two symmetrical cushion blocks are fixedly installed on the upper side of the movable mold seat plate, a movable mold block is fixedly installed on the upper sides of the two cushion blocks, a plurality of evenly-distributed male molds are installed on the upper side of the movable mold block, a plurality of female mold cavities are formed in the lower side of the fixed mold block, and the male molds are inserted into the female mold cavities in a one-to-one correspondence mode to form molding cavities for injection molding. According to the plug shell injection mold, when a plug shell is subjected to injection molding, cooling water circulates in each male mold, so that the cooling speed is high, and the production efficiency is improved.

Description

Technical Field

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

[0002] In modern automobile production, electrical components are widely used, which requires a large number of connecting wires to conduct electricity. To facilitate connection and later maintenance, the two ends of the connecting wires are usually connected to plugs and sockets for easy plugging in to conduct electricity or signals. The plug shell is generally made of plastic and is injection molded. The size of the plug shell is relatively small. However, the existing cooling channels are generally distributed throughout the moving mold, resulting in a slow cooling rate and affecting processing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an injection mold for a plug housing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plug housing injection mold, comprising a moving mold base plate and a fixed mold base plate. A fixed module is fixedly installed on the lower side of the fixed mold base plate, and a rectangular fixed mold insert is embedded on the upper side of the fixed module. A nozzle extending through the fixed mold insert is fixedly installed in the middle of the fixed mold base plate. Two symmetrical pads are fixedly installed on the upper side of the moving mold base plate, and a moving module is fixedly installed on the upper side of the two pads. Multiple evenly distributed punches are installed on the upper side of the moving module, and multiple cavity holes are provided on the lower side of the fixed module, with the punches corresponding one-to-one. The mold insert is inserted into the cavity to form an injection molding cavity. The lower side of the fixed mold insert is machined with a flow channel. The top of the cavity is connected to the flow channel through a round hole. The upper side of the moving mold is provided with a rectangular ejector plate. The punch passes through the ejector plate and is adapted to and movably connected to it. The punch includes an outer shell and an inner core. The outer cylindrical surface of the inner core is provided with a spiral cooling groove and the inner core is inserted into the outer shell. The lower part of the inner core is provided with a base plate. The lower end of the outer shell is screwed to the base plate. The middle part of the inner core is provided with an axial through hole a. The base plate is provided with a through hole b that passes through and connects to the lower end of the cooling groove.

[0005] Preferably, guide rods are fixedly installed at the four corners of the moving module, the guide rods are inserted into the fixed module and slidably connected thereto, and the guide rods pass through the push plate and slidably connected thereto.

[0006] Preferably, four push rods are fixedly connected to the lower side of the push plate, the lower end of the push rods passes through the moving module, and a pin plate is fixedly installed at the lower end of the push rods.

[0007] Preferably, a spring is sleeved on the push rod, and the spring applies a downward pushing force to the ejector plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are: when the mold is used to inject the plug shell, cooling water flows through the interior of each punch, thereby achieving a fast cooling rate and improving production efficiency. Attached Figure Description

[0009] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0010] Figure 2 This is a schematic cross-sectional view of the punch.

[0011] Figure 3 This is a schematic diagram of the three-dimensional structure of the inner core.

[0012] In the diagram: 1. Moving mold base plate; 2. Moving module; 3. Spacer block; 4. Fixed mold base plate; 5. Fixed module; 6. Sprue; 7. Fixed mold insert; 8. Molding cavity; 9. Punch; 91. Outer shell; 92. Base plate; 93. Inner core; 94. Cooling groove; 95. Through hole a; 96. Through hole b; 10. Die cavity; 11. Ejector plate; 12. Ejector plate; 13. Ejector rod; 14. Spring; 15. Runner. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a plug shell injection mold, including a moving mold base plate 1 and a fixed mold base plate 4. A fixed module 5 is fixedly installed on the lower side of the fixed mold base plate 4, and a rectangular fixed mold insert 7 is embedded in the upper side of the fixed module 5. A nozzle 6, extending through the fixed mold insert 7, is fixedly installed in the middle of the fixed mold base plate 4. After installation, the nozzle 6 is connected to the injection molding machine. Two symmetrical pads 3 are fixedly installed on the upper side of the moving mold base plate 1, and a moving module 2 is fixedly installed on the upper side of the two pads 3.

[0015] Multiple evenly distributed punches 9 are mounted on the upper side of the moving module 2. Each punch 9 includes an outer shell 91 and an inner core 93. The outer cylindrical surface of the inner core 93 is provided with a spiral cooling groove 94, and the inner core 93 is inserted into the outer shell 91. A base plate 92 is provided at the lower part of the inner core 93. The lower end of the outer shell 91 is screwed to the base plate 92. An axially penetrating through hole a95 is provided in the middle of the inner core 93. The base plate 92 is provided with a through hole b96 that penetrates and connects to the lower end of the cooling groove 94. Through holes a95 and b96 are connected to the cooling water channel system of the injection mold. The cooling water cools each punch 9 individually, resulting in uniform cooling and a fast cooling rate. Multiple concave cavities 10 are provided on the lower side of the stationary module 5. The punches 9 are inserted into the concave cavities 10 one by one to form the injection molding cavity 8, and multiple plug shells are injection molded in one operation.

[0016] The lower side of the fixed mold insert 7 is machined with a flow channel 15. The top of the cavity 10 is connected to the flow channel 15 through a round hole. The upper side of the moving module 2 is provided with a rectangular ejector plate 11. The punch 9 passes through the ejector plate 11 and is movably connected to it. Guide rods are fixedly installed at the four corners of the moving module 2. The guide rods are inserted into the fixed module 5 and slidably connected to it. The guide rods play a guiding and positioning role in mold closing. The guide rods pass through the ejector plate 11 and are slidably connected to it. Four ejector rods 13 are fixedly connected to the lower side of the ejector plate 11. The lower end of the ejector rod 13 passes through the moving module 2. The lower end of the ejector rod 13 is fixedly installed with an ejector plate 12. A spring 14 is sleeved on the ejector rod 13. The spring 14 applies a downward pushing force to the ejector plate 12. During mold parting, as the moving mold moves, the ejector plate 12 is blocked and moves towards the moving module 2. The ejector plate 11 is pushed forward, pushing the various plug shells off the punch 9 for ejection.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug housing injection mold, comprising a moving mold base plate (1) and a fixed mold base plate (4), wherein a fixed module (5) is fixedly installed on the lower side of the fixed mold base plate (4), a rectangular fixed mold insert (7) is embedded and installed on the upper side of the fixed module (5), and a nozzle (6) extending through and into the fixed mold insert (7) is fixedly installed in the middle of the fixed mold base plate (4), characterized in that: Two symmetrical pads (3) are fixedly installed on the upper side of the moving mold base plate (1). A moving module (2) is fixedly installed on the upper side of the two pads (3). Multiple evenly distributed punches (9) are installed on the upper side of the moving module (2). Multiple cavity cavities (10) are provided on the lower side of the fixed module (5). The punches (9) are inserted into the cavity cavities (10) one by one to form the injection molding cavity (8). The lower side of the fixed mold insert (7) is machined with a flow channel (15). The top of the cavity cavities (10) is connected to the flow channel (15) through a round hole. A rectangular pusher is provided on the upper side of the moving module (2). Plate (11), the punch (9) passes through the push plate (11) and is adapted to be movably connected to it. The punch (9) includes an outer shell (91) and an inner core (93). The outer cylindrical surface of the inner core (93) is provided with a spiral cooling groove (94) and the inner core (93) is inserted into the outer shell (91). The lower part of the inner core (93) is provided with a bottom plate (92). The lower end of the outer shell (91) is screwed to the bottom plate (92). The middle part of the inner core (93) is provided with an axial through hole a (95). The bottom plate (92) is provided with a through hole b (96) that passes through and connects to the lower end of the cooling groove (94).

2. The plug housing injection mold according to claim 1, characterized in that: The moving module (2) is fixedly installed with guide rods at its four corners. The guide rods are inserted into the fixed module (5) and slidably connected to it. The guide rods pass through the push plate (11) and slidably connected to it.

3. The plug housing injection mold according to claim 1, characterized in that: Four push rods (13) are fixedly connected to the lower side of the push plate (11). The lower end of the push rod (13) passes through the moving module (2). The lower end of the push rod (13) is fixedly installed with the ejector plate (12).

4. The plug housing injection mold according to claim 3, characterized in that: A spring (14) is sleeved on the push rod (13), and the spring (14) applies a downward thrust to the ejector plate (12).

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