Plastic electric connector injection mold

Abstract

The utility model discloses a plastic electric connector injection mold which comprises an injection mold body, and the injection mold body comprises a fixed mold plate and a fixed mold plate, the movable mold plate is arranged opposite to the fixed mold plate; the sealing plate is fixed on one side of the fixed mold plate; the injection molding runner nozzle is arranged in the middle of the sealing plate, a bottom guide pipe of the injection molding runner nozzle extends into the fixed mold plate, and the bottom guide pipe is provided with branch pipelines in a shunting manner; the mold core is arranged in the movable mold plate, and a shaping mold core is embedded in the mold core; the positioning block is arranged in the movable mold plate and surrounds the mold core, and a movably arranged inserting piece is inserted into the mold core; and the cooling pipeline is spirally arranged in the mold core, and ports of the cooling pipeline are respectively embedded into the side surfaces of the movable mold plate and the fixed mold plate. The injection mold body provided by the utility model is reasonable in structural design, and can be used for injection molding of various types of connectors.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, in particular to an injection mold for a plastic electric connector. Background Art

[0002] Connectors are a type of connection component that is often used in the field of electronic engineering. They are often used to connect wire harnesses and wire harnesses, or wire harnesses and electrical components. Connectors are often manufactured by injection molding. During the injection molding process, the terminals are inserted into the core pull block, and then the injection molding is performed. The terminals are used as inserts, and a plastic body is formed on the terminals. The part of the terminal inserted into the core pull block is outside the plastic body, that is, the connector includes a plastic body and a part of the terminal embedded in the plastic body. The shape of the hole inside the connector is determined by the part of the core pull block that extends into the plastic body.

[0003] Regarding the injection mold of the connector, the existing public patent (publication number is CN 114474619 A) discloses an injection mold of the connector, the connector includes a terminal and a plastic body, the injection mold includes a lower mold plate, a lower mold core fixed to the lower mold plate, an upper mold plate, an upper mold core fixed to the upper mold plate, and a core pulling block, the upper mold core and the lower mold core respectively have an upper injection molding cavity and a lower injection molding cavity for injection molding the plastic body, and also include a slider and a locking mechanism, the slider can be slidably installed on the lower mold plate, and when the slider slides to the frontmost position, it is located in the injection molding working position, the front end of the core pulling block has an injection molding head, and the injection molding head is provided with a plug hole for inserting the terminal, the core pulling block is detachably installed on the front side of the slider and is fixed to the slider in the front and rear upper direction, when the slider is located in the injection molding working position, the injection molding head of the core pulling block is located in the lower injection molding cavity, and the locking mechanism acts on the slider to lock the slider in the injection molding working position

[0004] Although the fixing method of the above-mentioned injection mold is relatively convenient during actual injection molding, its application scope is small and it cannot be applied to the injection molding of multiple types of connectors. To this end, we provide a plastic electrical connector injection mold to solve the above-mentioned problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a plastic electric connector injection mold, comprising an injection mold body for producing an electric connector, the injection mold body comprising:

[0007] Fixed template;

[0008] A movable template, arranged opposite to the fixed template;

[0009] A sealing plate, fixed to one side of the fixed template;

[0010] The injection molding runner nozzle is arranged in the middle of the sealing plate, the bottom conduit of which extends into the fixed mold plate, and the bottom conduit is provided with a branch pipe for diversion;

[0011] The mold core is arranged inside the movable mold plate and embedded with a molding core;

[0012] A positioning block is arranged in the movable platen, surrounding the mold core, and a movable plug-in is inserted into the mold core;

[0013] The cooling pipeline is spirally arranged inside the mold core, and its ports are respectively embedded in the sides of the movable mold plate and the fixed mold plate.

[0014] The utility model is further configured that a mold foot is provided at the bottom of the movable mold plate, a top plate is provided at the bottom of the inner groove of the mold foot, a return pin is provided at the corner of the top plate and cooperates with the movable mold plate, and a spring is provided on the outer sleeve of the return pin.

[0015] The utility model is further configured that a push rod is arranged in the middle of the push plate, and a movable template and a mold core are penetrated by the upper end of the push rod.

[0016] The utility model is further configured that the movable template is connected to the side surface of the fixed template via a fastener, and a lifting ring is fixed to the side surface of the movable template.

[0017] The utility model is further configured that a locking module is arranged on the side of the movable template, and the interior of the locking module is plugged and matched with a wedge block, and the wedge block is located on the inner side of the fixed template.

[0018] The utility model is further configured that a mold cavity is arranged inside the mold core, and the mold cavity cooperates with the shaping mold core.

[0019] The utility model is further configured that a guide rod is arranged at the corner of the sealing plate, and the bottom of the guide rod is penetrated through the movable template, the fixed template and the edge of the mold foot.

[0020] The utility model has the following beneficial effects:

[0021] The utility model realizes uniform injection of material into the mold core by arranging a positioning block around the mold core, cooperating with the plug-in to position the mold core and the built-in shaping core, and cooperating with the branch pipe extending from the bottom of the injection runner nozzle. The spirally arranged cooling pipe can quickly and evenly cool the injection mold. The structural design of the injection mold body is reasonable, which meets the requirements of the injection molding of various types of connectors, has high overall stability, and has great practical value.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of one side of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the other side of the overall structure of the utility model.

[0025] Figure 3 It is a side view of the overall structure of the utility model.

[0026] Figure 4 It is a schematic diagram of the internal structure of the movable mold in the utility model.

[0027] Figure 5 It is a schematic diagram of the mold core structure in the utility model.

[0028] Figure 6 It is a schematic diagram of the positioning of the mold core structure in the utility model.

[0029] In the accompanying drawings, the list of parts represented by each number is as follows: 1. Injection mold body; 11. Mold foot; 12. Moving mold plate; 13. Fastener; 14. Closing plate; 15. Guide rod; 16. Injection runner nozzle; 17. Fixed mold plate; 18. Lock module; 19. Top plate; 110. Spring; 111. Lifting ring; 112. Push rod; 113. Wedge block; 114. Mold core; 115. Cooling pipe; 116. Mold cavity; 117. Molding core; 118. Positioning block; 119. Plug-in. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] See also Figure 1-6The utility model is a plastic electrical connector injection mold, comprising an injection mold body 1 for producing electrical connectors, the injection mold body 1 comprising: a fixed mold plate 17; a movable mold plate 12, arranged opposite to the fixed mold plate 17; a sealing plate 14, fixed to one side of the fixed mold plate 17; an injection flow channel nozzle 16, arranged in the middle of the sealing plate 14, the bottom conduit of which extends into the fixed mold plate 17, and the bottom conduit is divided into a branch pipe; a mold core 114, arranged inside the movable mold plate 12, the mold core 114 is provided with a mold cavity 116, and the mold cavity 116 is matched with a fixed mold core 117; a positioning block 118, arranged in the movable mold plate 12, arranged around the mold core 114, and a movable plug-in 119 is plugged into the mold core 114; a cooling pipe 115, spirally arranged inside the mold core 114, and its ports are respectively embedded in the sides of the movable mold plate 12 and the fixed mold plate 17.

[0033] Specifically, in the injection mold body 1 proposed in the present application, a positioning block 118 is arranged around the mold core 114, and the mold core 114 and the built-in shaping core 117 are positioned in cooperation with the plug-in 119, and the branch pipe extending from the bottom of the injection runner nozzle 16 is cooperated to achieve uniform injection of the mold core 114. The spirally arranged cooling pipe 115 can quickly and evenly cool the injection mold. The structural design of the injection mold body 1 is reasonable, which meets the requirements of the injection molding of multiple types of connectors, has high overall stability, and has great practical value.

[0034] in,

[0035] A mold foot 11 is provided at the bottom of the movable mold plate 12, and a top plate 19 is provided at the bottom of the inner groove of the mold foot 11. A return pin is provided at the corner of the top plate 19 to cooperate with the movable mold plate 12, and a spring 110 is sleeved on the outside of the return pin. A push rod 112 is provided in the middle position of the top plate 19, and the upper end of the push rod 112 passes through the movable mold plate 12 and the mold core 114.

[0036] It should be noted that the mold foot 11 serves as the basic body of the injection mold body 1, and is used to support the entire injection mold body 1 and to install the top plate 19. The top plate 19 cooperates with an external drive to drive the ejector rod 112 to assist in demolding the injection mold body 1. The return pin and spring 110 are used to assist in returning to the original position. The above structure is a common structure in current injection molds and will not be described in further detail here.

[0037] The movable template 12 is connected to the side of the fixed template 17 via a fastener 13, and a lifting ring 111 is fixed to the side of the movable template 12. A locking module 18 is provided on the side of the movable template 12, and the locking module 18 is internally plugged and matched with a wedge block 113, and the wedge block 113 is located on the inner side of the fixed template 17.

[0038] Specifically, the installation of the fastener 13 is used to reinforce the relative position of the movable template 12 and the fixed template 17, the lifting ring 111 assists in the withdrawal of the movable template 12, and the plug-in cooperation of the locking module 18 and the wedge block 113 is also used to fix the position of the movable template 12 and the fixed template 17.

[0039] A guide rod 15 is provided at the corner of the closing plate 14, and the bottom of the guide rod 15 is passed through the edges of the movable template 12, the fixed template 17 and the mold foot 11. Based on the setting of the guide rod 15, the closing plate 14, the movable template 12, the fixed template 17 and the mold foot 11 are limited, thereby ensuring the overall balance and stability of the injection mold body 1.

Claims

1. A plastic electrical connector injection mold, comprising an injection mold body (1) for producing an electrical connector, characterized in that: The injection mold body (1) comprises: Fixed template (17); A movable platen (12) is arranged opposite to the fixed platen (17); A sealing plate (14) fixed to one side of the fixed template (17); An injection molding runner nozzle (16) is arranged in the middle of the sealing plate (14), and its bottom conduit extends into the fixed mold plate (17), and a branch conduit is arranged for the flow of the bottom conduit; A mold core (114) is disposed inside the movable mold plate (12) and has a mold core (117) embedded therein; A positioning block (118) is disposed in the movable platen (12) and surrounds the mold core (114), and a movable plug-in unit (119) is plugged into the mold core (114); The cooling pipe (115) is spirally arranged inside the mold core (114), and its ports are respectively embedded in the side surfaces of the movable mold plate (12) and the fixed mold plate (17).

2. The plastic electrical connector injection mold according to claim 1, characterized in that: A die foot (11) is provided at the bottom of the movable die plate (12), a top plate (19) is provided at the bottom of the inner groove of the die foot (11), a return pin is provided at the corner of the top plate (19) and cooperates with the movable die plate (12), and a spring (110) is provided on the outside of the return pin.

3. The plastic electrical connector injection mold according to claim 2, characterized in that: A push rod (112) is provided in the middle of the push plate (19), and a movable mold plate (12) and a mold core (114) are passed through the upper end of the push rod (112).

4. The plastic electrical connector injection mold according to claim 1, characterized in that: The movable die plate (12) is connected to the side surface of the fixed die plate (17) via a fastener (13), and a lifting ring (111) is fixed to the side surface of the movable die plate (12).

5. The plastic electrical connector injection mold according to claim 1, characterized in that: A locking module (18) is provided on the side of the movable platen (12), and the locking module (18) is internally plugged and matched with a wedge block (113), and the wedge block (113) is located on the inner side of the fixed platen (17).

6. The plastic electrical connector injection mold according to claim 1, characterized in that: A mold cavity (116) is provided inside the mold core (114), and the mold cavity (116) cooperates with a shaping mold core (117).

7. The plastic electrical connector injection mold according to claim 1, characterized in that: A guide rod (15) is provided at a corner of the sealing plate (14), and the bottom of the guide rod (15) is passed through the movable mold plate (12), the fixed mold plate (17) and the edge of the mold foot (11).

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