Wire harness rubber coating mold

Abstract

A mold core comprises an upper mold core body and a lower mold core body, a lower mounting groove matched with a connector is formed in the lower mold core body, a lower assembling groove matched with a wire harness is further formed in the lower mold core body, and a lower insert used for fixing the wire harness is further installed on the lower mold core body; an upper mounting groove matched with a connector is formed in the upper mold core, an upper assembling groove matched with a wire harness is further formed in the upper mold core, an upper insert is further mounted on the upper mold core, and an abutting piece matched with the wire harness is arranged at the bottom of the upper insert; the mold core is also provided with a glue injection channel; a lower mounting hole matched with the lower insert is formed in the lower mold core, and the lower insert is inserted into the lower mold core; an upper mounting hole matched with the upper insert is formed in the upper mold core, and the upper insert is inserted into the upper mounting hole. The lower insert and the upper insert are inserted into the mold core, so that the upper insert and the lower insert can be replaced conveniently, and proper rubber coating inserts can be selected conveniently according to different wire harnesses.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness production equipment, in particular to a wire harness encapsulation mold. Background Art

[0002] Generally, after the connector is injection molded once for wire harness encapsulation, the connector and the wire harness are placed in the encapsulation mold. Then, the upper mold core and the lower mold core are closed through the mold base, and the glue is poured into the mold core. When the glue reaches the connection part between the connector and the wire harness and cools and forms, the glue wraps around the connection part between the wire harness and the connector, realizing the fixed connection between the connector and the wire harness.

[0003] The wire harnesses used in automotive wire harness encapsulation generally include solid core wires, through wires, multi-strand copper core wires, etc. During the wire harness encapsulation process, in order to position the wire harness, it is often necessary to set a sealant insert in the mold core. Currently, the structures and specific parameters of the sealant inserts used for different wire harnesses are the same, and the sealant inserts are fixedly connected to the mold core and cannot be replaced, which causes the following defects:

[0004] First, the sealant insert does not match the wire harness, and the sealant insert squeezes the wire harness too much, causing the wire skin of the wire harness to be damaged during the mold closing process. On the one hand, there will be a situation of glue overflow, and the staff needs to manually clean the glue, increasing the workload of the staff. On the other hand, the damaged wire harness becomes a defective product and cannot be used continuously, resulting in waste and increasing the production cost;

[0005] Second, the sealant insert does not match the wire harness, and the sealant insert does not squeeze the wire harness in place, resulting in inaccurate positioning of the wire harness during the glue injection process, which may cause incomplete encapsulation at the connection part between the wire harness and the connector. Content of the Utility Model

[0006] The utility model provides a wire harness encapsulation mold to solve the above problems.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a wire harness encapsulation mold, which includes a mold core and a mold base. The mold core includes an upper mold core and a lower mold core. The lower mold core is provided with a lower installation groove adapted to the connector, and the lower mold core is further provided with a lower assembly groove adapted to the wire harness. One end of the lower assembly groove extends to the end of the lower mold core, and the other end of the lower assembly groove is communicated with the lower installation groove. The lower mold core is further installed with a lower insert for fixing the wire harness, and the top of the lower insert is provided with an accommodation groove adapted to the wire harness;

[0008] An upper mounting groove adapted to the connector is provided on the upper mold core, and the upper mounting groove corresponds to the lower mounting groove. An upper assembly groove adapted to the wiring harness is also provided on the upper mold core, and the upper assembly groove corresponds to the lower assembly groove. One end of the upper assembly groove extends to the end of the upper mold core, and the other end of the upper assembly groove is connected to the upper mounting groove. An upper insert adapted to the lower insert is also installed on the upper mold core, and an abutment adapted to the wiring harness is provided at the bottom of the upper insert.

[0009] The mold core is also provided with a glue injection channel;

[0010] The lower mold core is provided with a lower mounting hole adapted to the lower insert, the lower mounting hole passes through the lower assembly groove and is connected with the lower assembly groove; the lower insert is inserted in the lower mold core; the upper mold core is provided with an upper mounting hole adapted to the upper insert, the upper mounting hole passes through the upper assembly groove and is connected with the upper assembly groove, and the upper insert is inserted in the upper mounting hole.

[0011] Preferably, the placement groove is in the shape of an arc, and a bottom of the abutment member is provided with an abutment groove, which is also in the shape of an arc.

[0012] Preferably, the placement groove comprises a giving way portion and a placing portion, the giving way portion is arranged close to the lower installation groove, the placing portion is arranged in a U-shape, and the giving way portion is arranged in an arc shape.

[0013] Preferably, the placing portion includes a vertical portion and an arc-shaped portion, the abutment member is fixedly connected to the bottom of the lower insert and both sides of the abutment member are slidably connected to the inner side wall of the vertical portion, and an abutment groove matching the arc-shaped portion is provided at the bottom of the abutment member, and the bottom of the lower insert on both sides of the abutment member abuts against the top of the upper insert.

[0014] Preferably, the thickness of the abutment is d, the thickness of the upper insert is D, the relationship between d and D is: d=D, and a clearance groove matching the clearance part is provided on the side of the upper insert close to the upper mounting groove. The clearance groove extends to the bottom of the abutment and the clearance groove and the clearance part form a circular clearance area.

[0015] Preferably, the thickness of the abutment piece is d, the thickness of the upper insert is D, the relationship between d and D is: d<D, the abutment piece is arranged away from the upper mounting groove, the abutment groove penetrates the upper insert, and a clearance groove matching the clearance portion is provided on one side of the upper insert close to the mounting groove, and the clearance groove and the clearance portion form a circular clearance area;

[0016] A stop groove matched with the upper insert is provided on one side of the lower insert close to the lower mounting groove.

[0017] Preferably, there are a plurality of lower mounting grooves, and correspondingly, there are also a plurality of upper mounting grooves, lower assembly grooves, and upper assembly grooves.

[0018] Preferably, the glue injection channel includes a glue injection hole, which is opened in the middle of the upper mold core, and a glue injection groove corresponding to the glue injection hole is opened on the lower mold core, and connecting grooves arranged along the length direction of the lower mold core are opened on the lower mold core at both ends of the glue injection groove, and branch grooves are connected on both sides of the two connecting grooves, and the branch grooves are connected with the corresponding lower assembly groove and the connection between the lower installation groove; the upper mold core is provided with a connecting groove corresponding to the connecting groove and a branch groove corresponding to the branch groove.

[0019] Preferably, a plurality of limiting members for limiting the connector are inserted into the upper mold core, and the bottom of the limiting members contacts the connector.

[0020] The beneficial effects of the utility model are as follows: (1) by inserting the lower insert and the upper insert on the mold core, it is convenient to replace the upper insert and the lower insert, so that it is convenient to select a suitable rubber-coated insert according to different wire harnesses; (2) rubber-coated inserts with different structures are set according to the existing wire harnesses to meet the needs of rubber coating of different wire harnesses, so that it can squeeze the wire harness into place without damaging the surface of the wire harness; (3) a yielding portion is set on the lower insert, and a yielding groove corresponding to the yielding portion is set on the upper insert. The yielding portion and the yielding groove constitute a positioning area for the thicker part of the wire harness, so that the rubber-coated insert can simultaneously position two diameter parts of the wire harness, thereby improving its positioning effect; (4) a plurality of lower mounting grooves for placing connectors are set on the mold, and the structure of each lower mounting groove can be set according to needs, thereby expanding the application range of the mold and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the lower mold core of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the upper mold core of the utility model;

[0024] Figure 4 It is a schematic diagram of the connection structure between the lower mold core and the connector, the wiring harness, and the upper insert of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first rubber-encapsulated insert of the utility model. Figure 1 ;

[0026] Figure 6 The structure diagram of the second rubber-encapsulated insert of the utility model is shown in FIG. Figure 1 ;

[0027] Figure 7 The structure diagram of the second rubber-encapsulated insert of the utility model is shown in FIG.Figure 2 ;

[0028] Figure 8 Structural schematic of the second rubber-coated insert of the present utility model Figure 3 ;

[0029] Figure 9 Structural schematic of the second rubber-coated insert of the present utility model Figure 4 ;

[0030] Figure 10 Structural schematic of the third rubber-coated insert of the present utility model Figure 1 ;

[0031] Figure 11 Structural schematic of the third rubber-coated insert of the present utility model Figure 2 ;

[0032] Figure 12 Structural schematic of the third rubber-coated insert of the present utility model Figure 3 ;

[0033] Figure 13 Structural schematic of the third rubber-coated insert of the present utility model Figure 4 。 Detailed implementation manners

[0034] The present utility model will be further described below with reference to the accompanying drawings.

[0035] A wire harness rubber coating mold, the mold includes a mold core and a mold base, the mold core is installed on the mold base, the mold base is a prior art, and the structure of the mold base will not be described in detail here. As Figures 1 - 12 shown, the mold core includes an upper mold core 1 and a lower mold core 2. A lower installation groove 3 adapted to the connector 25 is provided on the lower mold core 2. The structure of the lower installation groove 3 is not specifically limited here, and the structure of the lower installation groove 3 only needs to match the structure of the installed connector 25. A lower assembly groove 4 adapted to the wire harness 26 is also provided on the lower mold core 2. The specific structure of the lower assembly groove 4 is not specifically limited here either. One end of the lower assembly groove 4 extends to the end of the lower mold core 2, and the other end of the lower assembly groove 4 is communicated with the lower installation groove 3. During use, the end of the wire harness 26 connected to the connector 25 is placed in the lower assembly groove 4 and its end is connected to the connector 25. A lower insert 5 for fixing the wire harness 26 is also installed on the lower mold core 2. An accommodation groove 6 adapted to the wire harness 26 is provided at the top of the lower insert 5, and the bottom of the wire harness 26 abuts against the accommodation groove 6.

[0036] An upper die core 1 is provided with an upper mounting groove 7 adapted to a connector 25. The upper mounting groove 7 corresponds to a lower mounting groove 3. The shape of the upper mounting groove 7 is not specifically limited here. The lower mounting groove 3 and the corresponding upper mounting groove 7 form a space for placing the connector 25. The upper die core 1 is also provided with an upper assembly groove 8 adapted to a wire harness 26. The upper assembly groove 8 corresponds to a lower assembly groove 4. One end of the upper assembly groove 8 extends to the end of the upper die core 1, and the other end of the upper assembly groove 8 communicates with the upper mounting groove 8. The structure of the upper assembly groove 8 is not specifically limited here. The upper assembly groove 8 and the corresponding lower assembly groove 4 form an assembly space for the wire harness 26. The upper die core 1 is also provided with an upper insert 9 adapted to a lower insert 5. The bottom of the upper insert 9 is provided with an abutting member 10 adapted to the wire harness 26. The wire harness 26 located at the top of the lower insert 5 is positioned by the abutting member 10.

[0037] The lower die core 2 is provided with a lower mounting hole 11 adapted to the lower insert 5. The lower mounting hole 11 passes through the lower assembly groove 4 and communicates with the lower assembly groove 4. The lower insert 5 is inserted into the lower die core 2. The upper die core 1 is provided with an upper mounting hole 12 adapted to the upper insert 9. The upper mounting hole 12 passes through the upper assembly groove 8 and communicates with the upper assembly groove 8. The upper insert 9 is inserted into the upper mounting hole 12. In specific use, according to different types of wire harnesses 26, appropriate lower inserts 5 and upper inserts 9 can be selected. The lower insert 5 is inserted into the lower mounting hole 11, and the bottom of the lower insert 5 is flush with the bottom of the lower die core 2. The upper insert 9 is inserted into the upper mounting hole 12, and the top of the upper insert 9 is flush with the top of the upper die core 1. After the die core is connected to the corresponding die set, the upper die set abuts against the top of the upper die core 1 to limit the position of the upper insert 9, and the lower die set abuts against the bottom of the lower die core 2 to limit the position of the lower insert 5. At the same time, the bottom of the upper insert 9 abuts against the top of the lower insert 5, so that the positions of the upper insert 9 and the lower insert 5 are fixed, thereby ensuring the positioning effect of the upper insert 9 and the lower insert 5 on the wire harness 26.

[0038] The die core is also provided with a glue injection channel. Glue is injected through the glue injection channel to complete the encapsulation operation of the connector 25 and the wire harness 26.

[0039] In one embodiment, as Figure 5 shown, the placement groove 6 is arc-shaped. The abutting member 10 is arranged with the same width and length as the upper insert 9. The abutting member 10 and the upper insert 9 are integrally formed, and an abutting groove 13 is provided at the bottom of the abutting member 10. The abutting groove 13 is also arc-shaped. The placement groove 6 and the abutting groove 13 form a circular wire harness 26 placement area. This is the first type of encapsulation insert, which is suitable for solid core wires.

[0040] In another embodiment, as Figures 6 - 13As shown, the placement groove 6 includes a clearance portion 14 and a placement portion 15. The clearance portion 14 is arranged close to the lower installation groove 3, that is, the clearance portion 14 is arranged close to the connector 25. The placement portion 15 is arranged in a U-shape, and the clearance portion 14 is arranged in an arc shape. Since the diameter of the connection between the wire harness 26 and the connector 25 may be larger than the wire harness 26, the clearance portion 14 is arranged so that the clearance portion 14 can position the thicker part of the wire harness 26 to improve the positioning effect of the wire harness 26.

[0041] The placement portion 15 includes a vertical portion 16 and an arc portion 17, the abutment member 10 is fixedly connected to the bottom of the lower insert 5 and the two outer side walls of the abutment member 10 are slidably connected to the inner side wall of the vertical portion 16, and an abutment groove 13 matching the arc portion 17 is provided at the bottom of the abutment member 10, and the bottom of the lower insert 5 on both sides of the abutment member 10 abuts against the top of the upper insert 9. Since the abutment member 10 enters the vertical portion 16 of the placement portion 15, the space for placing the wiring harness 26 formed by the abutment groove 13 and the placement portion 15 is shuttle-shaped.

[0042] In one embodiment, if Figures 6 - 9 As shown, the thickness of the abutment 10 is d, the thickness of the upper insert 9 is D, and the relationship between d and D is: d=D. The upper insert 9 is provided with a clearance groove 18 matched with the clearance portion 14 on one side close to the upper mounting groove 7. The clearance groove 18 extends to the bottom of the abutment 10 and the clearance groove 18 and the clearance portion 14 form a circular clearance area to facilitate positioning of the thicker wire harness 26. This is the second type of rubber-coated insert, which is suitable for threading pipes.

[0043] In one embodiment, if Figures 10 - 13 As shown, the thickness of the abutment member 10 is d, the thickness of the upper insert 9 is D, and the relationship between d and D is: d<D, the abutment member 10 is set away from the upper mounting groove 7, the abutment groove 13 penetrates the upper insert 9, and the upper insert 9 is fixedly connected to the side close to the mounting groove with a stop plate 19, the thickness of the stop plate 19 is L, and L+d=D, and the stop plate 19 is provided with a clearance groove 18 matched with the clearance portion 14, and the clearance groove 18 and the clearance portion 14 form a circular clearance area with a larger diameter, so as to facilitate the positioning of the thicker part of the wire harness 26. The side of the lower insert 5 close to the lower mounting groove 3 is provided with a stop groove 27 matched with the stop plate 19 on the upper insert 9. This is the third type of rubber-coated insert, which is suitable for copper core wires.

[0044] In another embodiment, Figure 2 and Figure 3As shown, the lower mounting grooves 3 are multiple, and accordingly, the upper mounting grooves 7, the lower assembly grooves 4, and the upper assembly grooves 8 are also multiple. In this embodiment, there are four lower mounting grooves 3, and the structures of the four lower mounting grooves 3 may not be completely the same to meet the requirements of different types of rubber packaging. Correspondingly, there are also four upper mounting grooves 7, and there are also four lower assembly grooves 4 and upper assembly grooves 8.

[0045] In another embodiment, Figure 2 and Figure 3 As shown, the glue injection channel includes a glue injection hole 20, which is opened in the middle of the upper mold core 1, and a glue injection groove 21 corresponding to the glue injection hole 20 is opened on the lower mold core 2, and the glue injection hole 20 is connected with the glue injection groove 21, and the lower mold core 2 at both ends of the glue injection groove 21 is provided with connecting grooves 22 arranged along the length direction of the lower mold core 2, and both sides of the two connecting grooves 22 are connected with branch grooves 23, and the branch grooves 23 are connected with corresponding glue injection points, and the glue injection point is the connection between the lower assembly groove 4 and the lower installation groove 3; the upper mold core 1 is provided with a connecting groove 22 corresponding to the connecting groove 22 and a branch groove 23 corresponding to the branch groove 23. When in use, after the upper mold frame is merged with the lower mold frame, glue is injected into the mold core through the glue injection hole 20, the glue enters the glue injection groove 21 through the glue injection hole 20, and flows to the corresponding branch groove 23 through the connecting groove 22, and then reaches the connection between the wiring harness 26 and the connector 25, so as to wrap the wiring harness 26 and the connector 25.

[0046] In another embodiment, Figure 4 As shown, a plurality of stoppers 24 for limiting the position of the connector 25 are inserted on the upper mold core 1, and the bottom of the stopper 24 abuts against the connector 25. The structure of the stopper is not specifically limited here. The arrangement of the stopper 24 facilitates limiting the position of the connector 25, thereby ensuring the fixation of the position of the connector 25, and further ensuring the smooth progress of the rubber encapsulation.

[0047] When in use, place the connector 25 in the lower mounting groove 3, select a suitable lower insert 5 according to the type of the wiring harness 26, place the lower insert 5 in the lower mounting hole 11, place the wiring harness 26 in the lower assembly groove 4 and abut the mounting groove, then select the matching upper insert 9 and insert the upper insert 9 in the upper mounting hole 12, close the mold, so that the abutment of the upper insert 9 abuts the lower insert 5, and the abutment groove and the mounting groove cooperate to compress and limit the wiring harness 26 to a certain extent, the yield portion 14 and the yield groove 18 position the thicker part of the wiring harness 26 on the side close to the connector 25, and then inject glue into the glue injection hole 20, so that the glue enters the glue injection groove 21 through the glue injection hole 20, and enters the branch groove 23 and the glue injection point in turn through the connecting groove 22, that is, reaches the connection between the wiring harness 26 and the connector 25, to realize the glue encapsulation operation.

[0048] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present utility model all fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wire harness rubber coating mold, the mold comprising a mold core and a mold frame, characterized in that: The mold core includes an upper mold core and a lower mold core, the lower mold core is provided with a lower installation groove adapted to the connector, the lower mold core is also provided with a lower assembly groove adapted to the wiring harness, one end of the lower assembly groove extends to the end of the lower mold core, and the other end of the lower assembly groove is connected to the lower installation groove, and a lower insert for fixing the wiring harness is also installed on the lower mold core, and a placement groove adapted to the wiring harness is provided on the top of the lower insert; An upper mounting groove adapted to the connector is provided on the upper mold core, and the upper mounting groove corresponds to the lower mounting groove. An upper assembly groove adapted to the wiring harness is also provided on the upper mold core, and the upper assembly groove corresponds to the lower assembly groove. One end of the upper assembly groove extends to the end of the upper mold core, and the other end of the upper assembly groove is connected to the upper mounting groove. An upper insert adapted to the lower insert is also installed on the upper mold core, and an abutment adapted to the wiring harness is provided at the bottom of the upper insert. The mold core is also provided with a glue injection channel; The lower mold core is provided with a lower mounting hole adapted to the lower insert, the lower mounting hole passes through the lower assembly groove and is connected with the lower assembly groove; the lower insert is inserted in the lower mold core; the upper mold core is provided with an upper mounting hole adapted to the upper insert, the upper mounting hole passes through the upper assembly groove and is connected with the upper assembly groove, and the upper insert is inserted in the upper mounting hole.

2. The wire harness rubber coating mold according to claim 1, characterized in that: The placement groove is in the shape of an arc, and a contact groove is provided at the bottom of the contact piece, and the contact groove is also in the shape of an arc.

3. The wire harness rubber coating mold according to claim 1, characterized in that: The placement groove comprises a yielding portion and a placing portion, the yielding portion is arranged close to the lower installation groove, the placing portion is arranged in a U-shape, and the yielding portion is arranged in an arc shape.

4. The wire harness rubber coating mold according to claim 3, characterized in that: The placement portion includes a vertical portion and an arc-shaped portion. The abutment member is fixedly connected to the bottom of the lower insert and both sides of the abutment member are slidably connected to the inner side wall of the vertical portion. An abutment groove matching the arc-shaped portion is provided at the bottom of the abutment member, and the bottom of the lower insert on both sides of the abutment member abuts against the top of the upper insert.

5. The wire harness rubber coating mold according to claim 4, characterized in that: The thickness of the abutment is d, the thickness of the upper insert is D, the relationship between d and D is: d=D, and a clearance groove matched with the clearance part is opened on the side of the upper insert close to the upper mounting groove. The clearance groove extends to the bottom of the abutment and the clearance groove and the clearance part form a circular clearance area.

6. The wire harness rubber coating mold according to claim 4, characterized in that: The thickness of the abutment piece is d, the thickness of the upper insert is D, the relationship between d and D is: d<D, the abutment piece is arranged away from the upper mounting groove, the abutment groove penetrates the upper insert, a side of the upper insert close to the mounting groove is provided with a relief groove matched with the relief portion, and the relief groove and the relief portion form a circular relief area; A stop groove matched with the upper insert is provided on one side of the lower insert close to the lower mounting groove.

7. A wire harness rubber coating mold according to any one of claims 1 to 6, characterized in that: The lower mounting grooves are multiple, and correspondingly, the upper mounting grooves, the lower assembly grooves, and the upper assembly grooves are also multiple.

8. The wire harness rubber coating mold according to claim 7, characterized in that: The glue injection channel includes a glue injection hole, which is opened in the middle of the upper mold core. A glue injection groove corresponding to the glue injection hole is opened on the lower mold core. Connecting grooves arranged along the length direction of the lower mold core are opened on the lower mold core at both ends of the glue injection groove. Branch grooves are connected on both sides of the two connecting grooves, and the branch grooves are connected with the corresponding lower assembly groove and the connection between the lower installation groove; the upper mold core is provided with a connecting groove corresponding to the connecting groove and a branch groove corresponding to the branch groove.

9. The wire harness overmolding mold according to claim 8, characterized in that: A plurality of limiting members for limiting the connector are also inserted on the upper mold core, and the bottom of the limiting members abuts against the connector.

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