Wire harness injection mold

Abstract

The utility model relates to the technical field of wire harness injection molding, in particular to a wire harness injection mold which comprises an upper mold core, a lower mold core and a top mold assembly, the upper mold core is provided with a first mounting groove, the lower mold core is provided with a second mounting groove, the top mold assembly comprises a top mold block, a connecting rod and a telescopic spring, during injection molding, the first mounting groove is provided with a first connecting hole, and the top mold block is provided with a second connecting hole. During demolding, the upper mold core is moved to be far away from the lower mold core, due to the fact that during injection molding, the groove wall of the first mounting groove in the upper mold core exerts downward force on the telescopic spring, so that the telescopic spring is compressed, when the upper mold core rises, the groove wall of the first mounting groove does not exert force on the telescopic spring any more, and the telescopic spring exerts upward force on the upper mold core; therefore, the upper mold core is easier to be away from the wire harness, and demolding is not easily affected by adhesion of residual molten injection molding liquid of the upper mold core.

Description

Technical Field

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

[0002] The wiring harness mainly consists of two parts: the wires and the terminals connected to the wires. The terminals are injection molded by the wiring harness injection mold. During the injection molding, the molten injection liquid treated with high temperature and high pressure is poured into the mold cavity. After natural cooling and molding, the upper mold and the lower mold are separated.

[0003] However, when demolding, the existing wire harness injection mold directly controls the upper mold and the lower mold to separate through the lifting mechanism, and then removes the molded wire harness from the lower mold. When the terminal of the wire harness is separated from the upper mold, since some molten injection liquid remains in the injection cavity of the upper mold, the wire harness is easy to rise with the upper mold, and the rest of the wire harness is usually limited by a limit structure. As the upper mold rises, the upper mold and the limit structure cooperate to pull the wire harness, and the wire harness is easy to be damaged. Utility Model Content

[0004] Based on the technical problems existing in the above-mentioned prior art, the utility model provides a wiring harness injection mold which can reduce the damage caused by the wiring harness being pulled up by the residual molten injection liquid during demoulding.

[0005] The utility model solves the technical problem by adopting the following technical scheme: providing a wire harness injection mold, comprising an upper mold core and a lower mold core which are arranged in sequence, and a top mold assembly arranged between the upper mold core and the lower mold core, wherein the upper mold core is provided with a mounting groove 1, and the lower mold core is provided with a mounting groove 2 corresponding to the mounting groove 1, the top mold assembly comprises a top module, a connecting rod arranged on the top module, and a telescopic spring sleeved on the connecting rod, during injection molding, the mounting groove 1 and the mounting groove 2 are mutually closed to form an installation space, the top module is placed in the installation space, the mounting groove 1 is provided with a connecting hole 1, the top module is provided with a connecting hole 2 corresponding to the connecting hole 1, one end of the connecting rod is connected to the bottom wall of the connecting hole 2, the other end of the connecting rod is slidably arranged in the connecting hole 1, the telescopic spring is sleeved on the connecting rod, and the two ends of the telescopic spring are respectively abutted against the groove wall of the mounting groove 1 and the bottom wall of the connecting hole 2, during injection molding, the top end of the wire harness and the top module and the upper mold core are all abutted against each other.

[0006] Furthermore, a limit block is provided at one end of the connecting rod located in the second connecting hole, and the first connecting hole is provided with a limit hole adapted to the limit block, and the limit block is slidably set in the limit hole, and the aperture size of the limit hole is larger than the aperture size of the first connecting hole. During injection molding, the limit hole is farther away from the lower mold core than the first connecting hole.

[0007] Furthermore, the upper mold core is provided with a first positioning hole, the lower mold core is provided with a second positioning hole corresponding to the first positioning hole, and the wiring harness injection mold further includes a positioning rod, and the positioning rod is adapted to the first positioning hole and the second positioning hole.

[0008] Furthermore, the upper mold core is provided with a cavity 1 adapted to the wiring harness terminal, and the lower mold core is provided with a cavity 2 adapted to the wiring harness terminal. During injection molding, the cavity 1 and the cavity 2 are closed to form an injection cavity adapted to the injection shape of the wiring harness terminal.

[0009] Furthermore, the upper mold core is provided with a first runner, and the lower mold core is provided with a second runner. During injection molding, the first runner and the second runner are closed to form a runner connected to the injection cavity.

[0010] Furthermore, the top module is provided with a main flow channel. During injection molding, the top module is located in the first mounting groove and the second mounting groove, and the main flow channel is communicated with the branch flow channel.

[0011] Furthermore, the wiring harness injection mold also includes an upper mold plate arranged above the upper mold core, the upper mold plate and the upper mold core are relatively fixed, the upper mold plate is provided with an injection hole 1, and the upper mold core is provided with an injection hole 2 corresponding to and connected to the injection hole 1. During injection molding, the injection hole 1, the injection hole 2, the branch channel and the main channel are all connected.

[0012] Furthermore, a connecting groove 1 is provided on the upper mold core, and a connecting groove 2 is provided on the lower mold core. During injection molding, the connecting groove 1 and the connecting groove 2 are closed to form a connecting cavity, and the main channel and the injection hole 1 and the injection hole 2 are connected through the connecting cavity.

[0013] Furthermore, the upper mold core is provided with a placement groove 1, and the lower mold core is provided with a placement groove 2 corresponding to the placement groove 1. During injection molding, the placement groove 1 and the placement groove 2 are closed to form a placement hole adapted to the wiring harness.

[0014] Furthermore, the lower mold core is also provided with a limiting protrusion, and the limiting protrusion is arranged on the side of the second cavity. During injection molding, the limiting protrusion is abutted against the side wall around the wire of the wiring harness.

[0015] The beneficial effect of the utility model is as follows: a wire harness injection mold is provided, comprising an upper mold core and a lower mold core which are arranged in sequence, and a top mold assembly arranged between the upper mold core and the lower mold core, the upper mold core is provided with an installation groove 1, the lower mold core is provided with an installation groove 2 corresponding to the installation groove 1, the top mold assembly comprises a top module, a connecting rod arranged on the top module and a telescopic spring sleeved on the connecting rod, during injection molding, the installation groove 1 and the installation groove 2 are closed to each other to form an installation space, the top module is placed in the installation space, the installation groove 1 is provided with a connecting hole 1, the top module is provided with a connecting hole 2 corresponding to the connecting hole 1, one end of the connecting rod is connected to the bottom wall of the connecting hole 2, the other end of the connecting rod is slidably arranged in the connecting hole 1, the telescopic spring is sleeved on the connecting rod, and the two ends of the telescopic spring are respectively abutted against the groove wall of the installation groove 1 and the bottom wall of the connecting hole 2, during injection molding, the top end of the wire harness and the top module and the upper mold core are all abutted against each other. When demolding, the upper mold core is moved away from the lower mold core. During injection molding, the groove wall of the mounting groove 1 on the upper mold core exerts a downward force on the telescopic spring, causing the telescopic spring to be compressed. When the upper mold core is raised, the groove wall of the mounting groove 1 no longer exerts a force on the telescopic spring, and the telescopic spring exerts an upward force on the upper mold core, making it easier for the upper mold core to move away from the wiring harness. At the same time, the wiring harness is pressed by the top module and is not easy to move, and is not easy to be affected by the adhesion of the molten injection liquid remaining in the upper mold core to affect demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] In the figure: Figure 1 A diagram showing an application example of a wiring harness injection mold provided by the utility model;

[0018] Figure 2 for Figure 1 The overall structure diagram of the wiring harness injection mold shown;

[0019] Figure 3 for Figure 2 An exploded view of the wiring harness injection mold is shown;

[0020] Figure 4 for Figure 1 A bottom view of the wiring harness injection mold shown;

[0021] Figure 5 for Figure 4 AA section view;

[0022] Figure 6 for Figure 1 A front view of the wiring harness injection mold shown;

[0023] Figure 7 for Figure 6BB cross-sectional view;

[0024] Figure 8 for Figure 2 The combined three-dimensional structure diagram of the lower mold core and the injection rod shown;

[0025] Fig. 9 for Figure 2 The combined three-dimensional structure diagram of the lower mold core and the wiring harness shown;

[0026] Fig.10 for Figure 2 The three-dimensional structure diagram of the upper mold core is shown.

[0027] Description of reference numerals: 100, wire harness injection mold; 10, upper mold plate; 11, injection hole 1; 12, mounting hole 1; 20, upper mold core; 21, positioning hole 1; 211, positioning rod; 22, mounting hole 2; 23, injection hole 2; 24, runner 1; 25, connecting groove 1; 26, cavity 1; 27, mounting groove 1; 271, placement groove 1; 272, connecting hole 1; 273, limiting hole; 28, placement hole; 29, groove; 30, lower mold core; 31, positioning hole 2; 32, cavity 2; 33, connecting groove 2; 34, runner 2; 35, Limiting protrusion; 36, mounting groove two; 361, placement hole two; 37, mounting hole three; 40, lower template; 41, mounting hole four; 50, top mold assembly; 51, top module; 511, main channel; 512, wiring harness placement hole one; 513, connecting hole two; 52, connecting rod; 521, limiting block; 53, telescopic spring; 60, installation space; 200, lifting assembly; 201, frame; 202, lifting cylinder; 300, injection assembly; 301, injection rod; 3011, injection hole; 400, wiring harness; 401, wire; 402, terminal. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the utility model in a schematic manner, so it only shows the structure related to the utility model. Obviously, the described embodiment is a part of the embodiment 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 making creative work are within the scope of protection of the utility model.

[0029] Please refer to Figure 1-10A wire harness injection mold 100 includes an upper mold plate 10, an upper mold core 20, a lower mold core 30 and a lower mold plate 40 which are arranged in sequence, and a top mold assembly 50 which is arranged between the upper mold core 20 and the lower mold core 30. When the wire harness injection mold 100 is used, it needs to cooperate with a jacking assembly 200 and an injection assembly 300. During injection molding, the wire harness is placed on the lower mold core 30, and the upper mold plate 10 and the upper mold core 20 are first controlled to descend by the jacking assembly 200 until a cavity for injection molding is formed between the upper mold core 20 and the lower mold core 30, and then the molten injection liquid is injected into the cavity formed between the upper mold core 20 and the lower mold core 30 by the injection assembly 300. After natural cooling and molding, the wire harness 400 which has been injected is taken out from between the upper mold core 20 and the lower mold core 30 by the jacking assembly 200 and the top mold assembly 50.

[0030] The upper template 10 is provided with an injection hole 11 and a plurality of mounting holes 12 . The injection hole 11 is located at the center of the upper template 10 , and the plurality of mounting holes 12 are respectively distributed at the four corners of the upper template 10 .

[0031] The upper mold core 20 is provided with a plurality of positioning holes 1 21 and a plurality of mounting holes 22 corresponding to the mounting holes 1 12. When the upper mold plate 10 and the upper mold core 20 are relatively fixed, the fixing bolts are sequentially passed through the corresponding mounting holes 22 and the mounting holes 1 12 and tightened. The fixing bolts are not numbered. The upper mold core 20 is also provided with an injection hole 23, a plurality of flow dividers 1 24 and a connecting groove 1 25 connected to the injection hole 23, and a cavity 1 26 for injection molding of the wiring harness terminal. The bottom surface of the upper mold core 20 is also provided with a mounting groove 1 27. The mounting groove 1 27 is also provided with a connecting hole 1 272. The hole wall of the connecting hole 1 272 is provided with a limiting hole 273. The aperture size of the limiting hole 273 is larger than the aperture size of the connecting hole 1 272. When the upper mold core 20 and the lower mold core 30 are connected and closed, the limiting hole 273 is farther away from the lower mold core 30 than the connecting hole 1 272. The injection hole 11 and the injection hole 23 correspond to each other, the cavity 1 26 and the runner 1 24 are both located on the bottom surface of the upper mold core 20, the cavity 1 26 and the runner 1 24 are arranged correspondingly, and the corresponding cavity 1 26 and runner 1 24 are connected to each other. A placement groove 1 271 for placing the wire 401 of the wiring harness 400 is provided on the groove wall of the installation groove 1 27. Specifically, in this embodiment, there are four cavities 1 26 and four runners, and the four cavities 1 26 and the four runners 1 24 correspond to each other.

[0032] The lower mold core 30 is provided with a plurality of positioning holes 31 corresponding to the positioning holes 21, a cavity 32 corresponding to the cavity 26, a connecting groove 33 corresponding to the connecting groove 25 and a branch channel 34 corresponding to the branch channel 24. The top surface of the lower mold core 30 is also provided with a limiting protrusion 35 and a mounting groove 36 corresponding to the mounting groove 27. The branch channel 34 and the cavity 32 are arranged correspondingly. There are multiple limiting protrusions 35, and the multiple limiting protrusions 35 are respectively located on both sides of the radial direction of the cavity 32. The upper mold core 20 is provided with a groove 29 corresponding to the limiting protrusion 35. During injection molding, the top of the limiting protrusion 35 abuts against the groove wall of the groove 29, and the limiting protrusion 35 abuts against the side wall of the wire 401 of the wiring harness 400. The limiting protrusion 35 and the groove wall of the groove 29 cooperate to limit the position of the wire 401 on the wiring harness 400 close to the terminal 402 of the wiring harness 400, so that the wiring harness 400 is not easy to move during injection molding. The groove wall of the second installation groove 36 is provided with a placement groove 261 for placing the wire 401 of the wiring harness 400. Specifically, in this embodiment, there are four cavities 2 32 and four diverter channels 2 34, and the four cavities 2 32 correspond to the four diverter channels 2 34.

[0033] The lower mold core 30 is also provided with a plurality of mounting holes 37 .

[0034] When the upper mold core 20 and the lower mold core 30 are closed to each other, the installation groove 1 27 and the installation groove 2 36 are connected and closed to form the installation space 60, the corresponding cavity 1 26 and the cavity 2 32 are closed to form an injection cavity that fits the injection shape of the terminal 402 of the wiring harness 400, the corresponding shunt channel 1 24 and the shunt channel 2 34 are connected and closed to form a shunt channel, the corresponding shunt channel and the injection cavity are connected, the connecting groove 1 25 and the connecting groove 2 33 are closed to form a connecting cavity, the connecting cavity and the injection hole 1 11 and the injection hole 23 are all connected to each other, and the placement groove 1 271 and the placement groove 2 361 are closed to form a placement hole 28 that fits the wire 401 of the wiring harness 400. The injection cavity, the shunt channel and the connecting cavity are not numbered in the figure.

[0035] The lower template 40 is provided with a plurality of mounting holes 41 corresponding to the mounting holes 37. Specifically, in this embodiment, there are four mounting holes 41, and the four mounting holes 41 are respectively located at the four corners of the lower template 40. When the lower template 40 and the lower mold core 30 are relatively fixed, the fixing bolts are sequentially passed through the corresponding mounting holes 37 and mounting holes 41 and tightened, wherein the fixing bolts are not numbered.

[0036] In this embodiment, the jacking assembly 200 used in conjunction includes a frame 201 and a lifting cylinder 202 arranged on the frame 201, the lower template 40 is installed on the frame 201, and the piston rod of the lifting cylinder 202 is fixedly connected to the top of the upper template 10.

[0037] In this embodiment, the injection assembly 300 used in conjunction includes an injection rod 301 and a material storage assembly storing molten injection liquid, and an injection mechanism that injects the molten injection liquid in the material storage assembly into the injection cavity via the injection rod 301. The injection rod 301 is provided with an injection hole 3011 that penetrates the injection rod 301. When used, the injection rod 301 is placed in the injection hole 11 and the injection hole 23 in sequence, and the injection hole 3011 is connected to the connecting cavity. The injection method adopted by the injection structure is plunger injection or reciprocating screw injection. Specifically, in this embodiment, the material storage assembly includes a material storage tank storing injection liquid and an electric heating coil arranged on the tank body of the material storage tank for heating the injection liquid. The injection mechanism adopts plunger injection. The specific structure is a prior art and is not repeated in this embodiment. In the drawings involved in this embodiment, the material storage assembly and the injection mechanism are not drawn.

[0038] The top mold assembly 50 includes a top module 51, a connecting rod 52 and a telescopic spring 53 sleeved on the connecting rod 52. A main channel 511 is provided on the side wall of the top module 51. The top module 51 is provided with a plurality of wire harness placement holes 28- arranged along the width direction of the top module 51. A connecting hole 2 513 is provided at the top of the top module 51. When the top module 51 is placed in the installation space 60 composed of the installation groove 1 27 of the upper mold core 20 and the installation groove 2 36 of the lower mold core 30, the number of the wire harness placement holes 28- corresponds to the number of placement holes 28, and the wire harness placement holes 28- at corresponding positions are connected with the placement holes 28, the main channel 511 and the connecting cavity, multiple diversion grooves, injection hole 11, injection hole 23, and the injection hole 3011 of the injection rod 301 are all connected to each other, and the connecting hole 2 513 and the connecting hole 1 272 are correspondingly connected.

[0039] One end of the connecting rod 52 is connected to the hole wall of the second connecting hole 513, and the other end of the connecting rod 52 passes through the telescopic spring 53 and is located in the limiting hole 273 and the first connecting hole 272. The end of the connecting rod 52 located in the limiting hole 273 is provided with a limiting block 521 adapted to the limiting hole 273, and the limiting block 521 is slidably arranged in the limiting hole 273. The two ends of the telescopic spring 53 are respectively abutted against the groove wall of the first mounting groove 27 and the bottom wall of the second connecting hole 513.

[0040] The wire harness injection mold 100 further includes a positioning rod 211, which is matched with the first positioning hole 21 and the second positioning hole 31. The positioning rod 211 cooperates with the first positioning hole 21 and the second positioning hole 31, so that the upper mold core 20 and the lower mold core 30 are closed correspondingly to each other during injection molding.

[0041] The working process of a wire harness injection mold 100 involved in the utility model is as follows: firstly, relatively fixed lower template 40 and lower mold core 30 are placed on frame 201, wire harness is placed in placement slot 2, the part of wire harness to be injected is placed in cavity 2 32, and positioning rod 211 is placed in positioning hole 2 31. Then, lifting cylinder 202 is started to lower upper template 10 and upper mold core 20 until a closed injection cavity, a shunt groove, a connecting cavity and a placement hole 28 are formed between lower mold core 30 and upper mold core 20, at which time, wire 401 of wire harness 400 is located in wire harness placement hole 28- and placement hole 28, and the part of wire harness 400 to be injected with terminal 402 is placed in the injection cavity. The molten injection liquid is then injected into the injection hole 3011 of the injection rod 301 through the injection mechanism. The injection liquid flows into multiple branch channels through the injection hole 3011, the connecting cavity, and the main channel 511 in sequence, and then flows into the corresponding injection cavities through the multiple branch channels, thereby realizing the injection of multiple wire harnesses 400 at the same time.

[0042] When the part of the wiring harness that needs to be injected is naturally cooled and needs to be demoulded, the lifting cylinder 202 is started to lift the upper mold plate 10 and the upper mold core 20 away. During injection molding, the groove wall of the mounting groove 1 27 on the upper mold core 20 exerts a downward force on the telescopic spring 53, so that the telescopic spring 53 is compressed. When the lifting cylinder 202 controls the upper mold core 20 to rise, the groove wall of the mounting groove 1 27 no longer exerts a force on the telescopic spring 53, and the telescopic spring 53 exerts an upward force on the upper mold core 20, so that the upper mold core 20 is easier to move away from the wiring harness, and it is not easy to be affected by the adhesion of the injection liquid remaining in the injection cavity. Demolding.

[0043] Beneficial effect: When demolding, the upper mold core 20 is moved away from the lower mold core 30. During injection molding, the groove wall of the mounting groove 27 on the upper mold core 20 applies a downward force to the telescopic spring 53, so that the telescopic spring 53 is compressed. When the upper mold core 20 is raised, the groove wall of the mounting groove 27 no longer applies force to the telescopic spring 53. The telescopic spring 53 applies an upward force to the upper mold core 20, thereby making it easier for the upper mold core 20 to move away from the wiring harness 400. At the same time, the wiring harness 400 is pressed by the top module 51 and is not easy to move, and is not easy to be affected by the adhesion of the molten injection molding liquid remaining in the upper mold core 20 to affect demolding.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A wire harness injection mold, characterized in that: The invention comprises an upper mold core and a lower mold core which are arranged in sequence, and a top mold assembly arranged between the upper mold core and the lower mold core, the upper mold core is provided with an installation groove 1, the lower mold core is provided with an installation groove 2 corresponding to the installation groove 1, the top mold assembly comprises a top module, a connecting rod arranged on the top module and a telescopic spring sleeved on the connecting rod, during injection molding, the installation groove 1 and the installation groove 2 are closed to each other to form an installation space, the top module is placed in the installation space, the installation groove 1 is provided with a connecting hole 1, the top module is provided with a connecting hole 2 corresponding to the connecting hole 1, one end of the connecting rod is connected to the bottom wall of the connecting hole 2, the other end of the connecting rod is slidably arranged in the connecting hole 1, the telescopic spring is sleeved on the connecting rod, and the two ends of the telescopic spring are respectively abutted against the groove wall of the installation groove 1 and the bottom wall of the connecting hole 2, during injection molding, the top end of the wiring harness is abutted against the top module and the upper mold core.

2. The wire harness injection mold according to claim 1, characterized in that: A limit block is provided at one end of the connecting rod located in the second connecting hole, and the first connecting hole is provided with a limit hole matched with the limit block. The limit block is slidably set in the limit hole, and the aperture size of the limit hole is larger than the aperture size of the first connecting hole. During injection molding, the limit hole is farther away from the lower mold core than the first connecting hole.

3. The wire harness injection mold according to claim 1, characterized in that: The upper mold core is provided with a first positioning hole, the lower mold core is provided with a second positioning hole corresponding to the first positioning hole, and the wiring harness injection mold further comprises a positioning rod, and the positioning rod is adapted to the first positioning hole and the second positioning hole.

4. The wire harness injection mold according to claim 1, characterized in that: The upper mold core is provided with a cavity 1 adapted to the wiring harness terminal, and the lower mold core is provided with a cavity 2 adapted to the wiring harness terminal. During injection molding, the cavity 1 and the cavity 2 are closed to form an injection molding cavity adapted to the injection molding shape of the wiring harness terminal.

5. The wire harness injection mold according to claim 1, characterized in that: The upper mold core is provided with a first runner, and the lower mold core is provided with a second runner. During injection molding, the first runner and the second runner are closed to form a runner connected to the injection cavity.

6. The wire harness injection mold according to claim 5, characterized in that: The top module is provided with a main flow channel. During injection molding, the top module is located in the first mounting groove and the second mounting groove, and the main flow channel is communicated with the branch flow channel.

7. The wire harness injection mold according to claim 6, characterized in that: The wire harness injection mold also includes an upper mold plate arranged above the upper mold core, the upper mold plate and the upper mold core are relatively fixed, the upper mold plate is provided with an injection hole 1, and the upper mold core is provided with an injection hole 2 corresponding to and connected to the injection hole 1. During injection molding, the injection hole 1, the injection hole 2, the branch channel and the main channel are all connected.

8. The wire harness injection mold according to claim 7, characterized in that: The upper mold core is provided with a connecting groove 1, and the lower mold core is provided with a connecting groove 2. During injection molding, the connecting groove 1 and the connecting groove 2 are closed to each other to form a connecting cavity, and the main flow channel and the injection hole 1 and the injection hole 2 are connected through the connecting cavity.

9. The wire harness injection mold according to claim 1, characterized in that: The upper mold core is provided with a placement groove 1, and the lower mold core is provided with a placement groove 2 corresponding to the placement groove 1. During injection molding, the placement groove 1 and the placement groove 2 are closed to form a placement hole adapted to the wiring harness.

10. The wire harness injection mold according to claim 4, characterized in that: The lower mold core is also provided with a limiting protrusion, and the limiting protrusion is arranged on the side of the second cavity. During injection molding, the limiting protrusion is abutted against the side wall around the wire of the wiring harness.

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