Injection molding structure and injection mold of wire harness connecting end

Abstract

The utility model provides an injection molding structure and an injection mold of a wire harness connecting end, the injection molding structure of the wire harness connecting end comprises a front mold core and a rear mold core, the front mold core covers the rear mold core, the front mold core is provided with a first molding groove and a first fixing groove which are communicated, and the rear mold core is provided with a second molding groove and a second fixing groove which are communicated; the first forming groove and the second forming groove jointly form an injection molding cavity, and the first fixing groove and the second fixing groove jointly form a fixed mounting groove; the front mold core is provided with a front mold injection molding channel, a plurality of first molding grooves, a plurality of first fixing grooves, a plurality of second molding grooves and a plurality of second fixing grooves, the rear mold core is provided with a rear mold injection molding channel communicated with the front mold injection molding channel, and the rear mold injection molding channel is communicated with each injection molding cavity. The position of the main body of the wire harness connecting end is fixed, so that the plug-in parts of the injection-molded wire harness connecting end are good in consistency, the plug-in parts of the plurality of wire harness connecting ends are simultaneously molded by the plurality of injection molding cavities, and the production efficiency of injection molding of the injection molding structure of the wire harness connecting end is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of connecting lines, in particular to a wire harness connecting end injection molding structure and injection molding mold. BACKGROUND

[0002] The connecting lines of the automobile wire harness are connected through the wire harness connecting end, the wire harness connecting end includes a main body of the wire harness connecting end and a plug-in part, and the plug-in part of the wire harness connecting end is injection molded. As a key component for signal and power transmission, the performance of the wire harness connecting end directly affects the reliability and stability of the automobile electrical system, and the plug-in part of the wire harness connecting end needs to meet the requirements of miniaturization and high precision.

[0003] During the injection molding of the plug-in part of the wire harness connecting end, the wire harness connecting end is first installed in the cavity of the mold, and then molten plastic is injected for injection molding, and the plug-in part of the wire harness connecting end is formed in the cavity of the mold. Because the number of wire harness connecting ends installed in the cavity of the mold is small, the time consumed for batch injection molding of the plug-in part of the wire harness connecting end is long, and the efficiency of injection molding production is low.

[0004] As disclosed in the prior art document CN202221109535.9, an injection molding device for automobile wire harness production includes a workbench, a collection groove is arranged on one side of the upper part of the workbench, a box body is arranged on one side of the collection groove and on the workbench, a hydraulic device is arranged on the outer left side wall of the box body, a first connecting plate is arranged on the inner left side wall of the box body, a limiting block is arranged on the first connecting plate, a second connecting plate is arranged on one side of the limiting block, the output shaft of the hydraulic device is fixedly connected through the first connecting plate and the second connecting plate, an ejection mechanism is arranged on the second connecting plate, and the terminals cooled and formed in the upper mold are quickly ejected through the ejection mechanism to improve work efficiency. However, the number of terminals connected by wires molded at one time is small, which reduces the work efficiency of the injection molding device for automobile wire harness production. Practical new type content

[0005] The present disclosure aims to overcome the shortcomings in the prior art and provide an injection molding structure and injection molding mold for wire harness connecting ends with good molding consistency and simultaneous injection molding of multiple injection molding cavities.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] An injection structure of a wiring harness connector, comprising a front mold core and a rear mold core, the front mold core is arranged on the rear mold core, the front mold core is provided with a first forming groove and a first fixing groove which are communicated with each other, the rear mold core is provided with a second forming groove and a second fixing groove which are communicated with each other, the first forming groove and the second forming groove jointly form an injection cavity, the injection cavity is used for forming a plug-in part of the wiring harness connector, the first fixing groove and the second fixing groove jointly form a fixing installation groove, the fixing installation groove is used for fixing a main body of the wiring harness connector, and one end of the fixing installation groove away from the injection cavity is communicated with an external channel.

[0008] The front mold core is provided with a front mold injection channel, the rear mold core is provided with a rear mold injection channel, the front mold injection channel is communicated with the rear mold injection channel, the number of the first forming groove, the first fixing groove, the second forming groove and the second fixing groove is multiple, multiple first forming grooves and first fixing grooves are arranged at intervals on the front mold core, multiple second forming grooves and second fixing grooves are arranged at intervals on the rear mold core, and the rear mold injection channel is communicated with each injection cavity.

[0009] In one of the embodiments, the front mold core is provided with a positioning groove, the rear mold core is provided with a positioning protrusion, and the positioning protrusion is embedded in the positioning groove.

[0010] In one of the embodiments, a first protrusion is arranged in the first fixing groove, a second protrusion is arranged in the second fixing groove, and the first protrusion and the second protrusion are used for adapting to a groove of the main body of the wiring harness connector.

[0011] In one of the embodiments, a first annular groove is arranged in the first fixing groove, a second annular groove is arranged in the second fixing groove, and the first annular groove and the second annular groove are used for limiting the position of the main body of the wiring harness connector.

[0012] In one of the embodiments, multiple first forming grooves and multiple second fixing grooves are arranged symmetrically along the center of the front mold core, and multiple second forming grooves and multiple second fixing grooves are arranged symmetrically along the center of the rear mold core.

[0013] In one of the embodiments, the front mold core is provided with a first heating channel, and the first heating channel is arranged correspondingly along the positions of multiple first forming grooves and multiple first fixing grooves.

[0014] In one of the embodiments, the rear mold core is provided with a second heating channel, and the second heating channel is arranged correspondingly along the positions of multiple second forming grooves and multiple second fixing grooves.

[0015] In one of the embodiments, the back mold injection channel comprises a first injection channel and a second injection channel, the first injection channel is communicated with the front mold injection channel, the second injection channel is communicated with the first injection channel, and the second injection channel is also communicated with two adjacent injection cavities.

[0016] In one of the embodiments, the back mold injection channel is further provided with a cold material groove, and the cold material groove is communicated with the second injection channel.

[0017] An injection mold for the wire harness connector, comprising the injection structure of the wire harness connector according to any one of the above embodiments.

[0018] Compared with the prior art, the present disclosure has at least the following advantages:

[0019] The injection structure of the wire harness connector and the injection mold have the following advantages: the first fixing groove and the second fixing groove jointly form a fixing installation groove to fix the main body of the wire harness connector, so that the position of the main body of the wire harness connector is fixed, and the consistency of the plug-in part of the wire harness connector formed by each injection cavity is good; the plurality of first forming grooves and the first fixing grooves are arranged at intervals in the front mold core, and the plurality of second forming grooves and the second fixing grooves are arranged at intervals in the back mold core, so that the consistency of the plug-in part of the wire harness connector formed by the plurality of injection cavities is good; the back mold injection channel is communicated with each injection cavity, and the plurality of injection cavities simultaneously form the plug-in part of the plurality of wire harness connectors, thereby improving the production efficiency of the injection structure of the wire harness connector. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 FIG. 1 is a structural schematic diagram of the injection structure of the wire harness connector according to an embodiment of the present disclosure;

[0022] Figure 2 FIG. 2 is another structural schematic diagram of the injection structure of the wire harness connector according to an embodiment of the present disclosure; Figure 1 FIG. 3 is still another structural schematic diagram of the injection structure of the wire harness connector according to an embodiment of the present disclosure.

[0023] Figure 3 FIG. 4 is a structural schematic diagram of the injection structure of the wire harness connector according to another embodiment of the present disclosure. Figure 1 FIG. 5 is a structural schematic diagram of the injection structure of the wire harness connector according to still another embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0028] like Figures 1 to 3 As shown, the injection molding structure 10 of the wire harness connector end according to an embodiment of the present disclosure includes a front mold core 100 and a rear mold core 200. The front mold core 100 covers the rear mold core 200. The front mold core 100 has a first molding groove 101 and a first fixing groove 102 that are connected to each other. The rear mold core 200 has a second molding groove 201 and a second fixing groove 202 that are connected to each other. The first molding groove 101 and the second molding groove 201 together form an injection molding cavity 103. The injection molding cavity 103 is used to mold the insertion part of the wire harness connector end. The first fixing groove 102 and the second fixing groove 202 together form a fixing mounting groove 104. The fixing mounting groove 104 is used to fix the main body of the wire harness connector end. One end of the fixing mounting groove 104 away from the injection molding cavity 103 is connected to an external channel. The main body of the wire harness connector end blocks the communication position between the injection molding cavity 103 and the fixing mounting groove 104.

[0029] Further, the front mold core 100 is provided with front mold injection channels 105, and the rear mold core 200 is provided with rear mold injection channels 203. The front mold injection channels 105 are communicated with the rear mold injection channels 203. The first forming grooves 101, the first fixing grooves 102, the second forming grooves 201, and the second fixing grooves 202 are multiple in number. Multiple first forming grooves 101 and first fixing grooves 102 are arranged at intervals on the front mold core 100. Multiple second forming grooves 201 and second fixing grooves 202 are arranged at intervals on the rear mold core 200. The rear mold injection channels 203 are communicated with each of the injection cavities 103.

[0030] In the embodiment, the main body of the wire harness connector is first placed on the second fixing groove 202, and then the front mold core 100 is covered on the rear mold core 200, so that the first fixing groove 102 and the second fixing groove 202 jointly form a fixing installation groove 104 to fix the main body of the wire harness connector. The molten plastic is injected through the front mold injection channel 105, enters the rear mold injection channel 203 through the front mold injection channel 105, and then flows into multiple first forming grooves 101 and second forming grooves 201 to jointly form the injection cavity 103. The plug-in part of the wire harness connector in each injection cavity 103 is connected with the corresponding fixed main body of the wire harness connector, and a complete wire harness connector is obtained.

[0031] The injection structure 10 of the wire harness connector is fixed by the first fixing groove 102 and the second fixing groove 202 to jointly form the fixing installation groove 104, so that the position of the main body of the wire harness connector is fixed, and the plug-in part of the wire harness connector formed in each injection cavity 10 has good consistency. Multiple first forming grooves 101 and first fixing grooves 102 are arranged at intervals on the front mold core 100, and multiple second forming grooves 201 and second fixing grooves 202 are arranged at intervals on the rear mold core 200, so that the plug-in parts of the wire harness connectors formed in multiple injection cavities 103 have good consistency. The rear mold injection channels 203 are communicated with each of the injection cavities 103, and multiple injection cavities 103 simultaneously form multiple plug-in parts of the wire harness connector, thereby improving the production efficiency of the injection structure 10 of the wire harness connector.

[0032] As Figure 1As shown in the drawings, in one embodiment, the front die core 100 is provided with a positioning groove 106, and the rear die core 200 is provided with a positioning protrusion 210, and the positioning protrusion 210 is embedded in the positioning groove 106. In this embodiment, during the mold closing process, the embedding of the positioning protrusion 210 and the positioning groove 106 plays a guiding role, so that the front die core 100 and the rear die core 200 are quickly and stably closed, and the positioning protrusion 210 and the positioning groove 106 cooperate to make the front die core 100 and the rear die core 200 accurately aligned in position during mold closing, avoiding mold damage or product defects caused by misalignment.

[0033] As shown in the drawings, Figure 1 In one embodiment, the first fixed groove 102 is provided with a first protrusion 110, and the second fixed groove 202 is provided with a second protrusion 220, and the first protrusion 110 and the second protrusion 220 are used to adapt to the groove of the main body of the wire harness connector. In this embodiment, the main body of the wire harness connector is provided with a corresponding groove corresponding to the first protrusion 110 and the second protrusion 220, and when the front die core 100 is covered on the rear die core 200, the groove of the main body of the wire harness connector is adapted to the first protrusion 110 and the second protrusion 220, preventing the misassembly or misalignment of the main body of the wire harness connector, limiting the movement of the main body of the wire harness connector, reducing the injection deviation caused by the movement of the main body of the wire harness connector, and improving the consistency of the plug-in part of the injection molded wire harness connector.

[0034] As shown in the drawings, Figure 1 In one embodiment, the first fixed groove 102 is provided with a first ring-shaped groove 107, and the second fixed groove 202 is provided with a second ring-shaped groove 204, and the first ring-shaped groove 107 and the second ring-shaped groove 204 are used to limit the position of the main body of the wire harness connector. In this embodiment, when the front die core 100 is covered on the rear die core 200, the main body of the wire harness connector seals one end of the injection cavity 103 formed by the first forming groove 101 and the second forming groove 201, and the first ring-shaped groove 107 and the second ring-shaped groove 204 limit the position of the main body of the wire harness connector, thereby improving the stress of the main body of the wire harness connector, further reducing the movement of the main body of the wire harness connector, and further improving the stability of the plug-in part of the injection molded wire harness connector.

[0035] As shown in the drawings, Figure 1As shown in the drawings, in one embodiment, the plurality of first forming grooves 101 and the plurality of second fixing grooves 202 are symmetrically arranged along the center of the front die core 100, and the plurality of second forming grooves 201 and the plurality of second fixing grooves 202 are symmetrically arranged along the center of the rear die core 200. In this embodiment, the plurality of first forming grooves 101 and the plurality of second fixing grooves 202 are symmetrically arranged on the front die core 100, and the plurality of second forming grooves 201 and the plurality of second fixing grooves 202 are symmetrically arranged on the rear die core 200, so that the injection molding cavity 103 and the fixed mounting groove 104 are arranged in height symmetry, so that the structure of the injection molding cavity 103 is subjected to similar stress and injection molding environment, and the injection stability of the plug-in part of the wire harness connection end formed by the injection molding cavity 103 is improved.

[0036] As shown in the drawings, Figure 1 and Figure 2 In one embodiment, the front die core 100 is provided with a first heating channel 108, and the first heating channel 108 is arranged corresponding to the positions of the plurality of first forming grooves 101 and the plurality of first fixing grooves 102. In this embodiment, the first heating channel 108 is arranged in sequence along the positions adjacent to the plurality of first forming grooves 101 and the plurality of first fixing grooves 102 on the front die core 100, so that the first forming grooves 101 and the plurality of first fixing grooves 102 are uniformly heated, thereby improving the quality and efficiency of injection molding.

[0037] As shown in the drawings, Figure 1 and Figure 3 In one embodiment, the rear die core 200 is provided with a second heating channel 205, and the second heating channel 205 is arranged corresponding to the positions of the plurality of second forming grooves 201 and the plurality of second fixing grooves 202. In this embodiment, the second heating channel 205 is arranged in sequence along the positions adjacent to the plurality of second forming grooves 201 and the plurality of second fixing grooves 202 on the front die core 100, so that the second forming grooves 201 and the plurality of second fixing grooves 202 are uniformly heated, thereby improving the quality and efficiency of injection molding.

[0038] As shown in the drawings, Figure 1As shown, in one of the embodiments, the back mold injection channel 203 includes a first injection channel 206 and a second injection channel 207, the first injection channel 206 is communicated with the front mold injection channel 105, the second injection channel 207 is communicated with the first injection channel 206, and the second injection channel 207 is also communicated with two adjacent injection cavities 103. In this embodiment, the first injection channel 206 is branched by the second injection channel 207, and the molten plastic enters the two adjacent injection cavities 103 through the second injection channel 207, which optimizes the flow path of the molten plastic and enables the molten plastic to enter multiple injection cavities 103 at the same time, thereby significantly improving the molding efficiency and consistency of the wire harness connector injection structure 10.

[0039] As shown, Figure 1 In one of the embodiments, the back mold injection channel 203 is also provided with a cold material groove 208, and the cold material groove 208 is communicated with the second injection channel 207. In this embodiment, when the molten plastic enters the second injection channel 207, the temperature of the first entering molten plastic drops rapidly. By providing the cold material groove 208, the cold material groove 208 intercepts and retains low-temperature cold material, so that the temperature of the molten plastic entering the second injection channel 207 is uniform, thereby improving the quality stability and production efficiency of the injection molding.

[0040] The application also provides an injection mold, which includes the wire harness connector injection structure 10 in any of the above embodiments. In this embodiment, the wire harness connector injection structure 10 fixes the position of the main body of the wire harness connector, and the injection-molded plug-in part of the wire harness connector has good consistency. The injection cavity 103 of the wire harness connector injection structure 10 forms multiple wire harness connectors, thereby improving the production efficiency of the injection-molded plug-in part of the wire harness connector.

[0041] Compared with the prior art, the present disclosure has at least the following advantages:

[0042] The wire harness connector injection structure 10 and the injection mold described above, the first fixing groove 102 and the second fixing groove 202 jointly form a fixed mounting groove 104 to fix the main body of the wire harness connector, so that the position of the main body of the wire harness connector is fixed, thereby making the plug-in part of the wire harness connector formed by each injection cavity 10 have good consistency; the plurality of first forming grooves 101 and the first fixing grooves 102 are arranged at intervals in the front mold core 100, and the plurality of second forming grooves 201 and the second fixing grooves 202 are arranged at intervals in the back mold core 200, so that the plug-in part of the wire harness connector formed by the plurality of injection cavities 103 has good consistency, the back mold injection channel 203 is communicated with each injection cavity 103, and the plurality of injection cavities 103 simultaneously form the plug-in part of the plurality of wire harness connectors, thereby improving the production efficiency of the wire harness connector injection structure 10.

[0043] The above-described embodiments are merely representative of several embodiments of the present disclosure, which are described in a more specific and detailed manner, but should not be construed as limiting the scope of the disclosed patent. It should be noted that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, which are all within the scope of the present disclosure. Therefore, the scope of protection of the present disclosure should be subject to the appended claims.

Claims

1. An injection molded structure of a wiring harness connection end, characterized by, The front die core and the rear die core, the front die core covers the rear die core, the front die core is provided with the first forming groove and the first fixed groove which are communicated, the rear die core is provided with the second forming groove and the second fixed groove which are communicated, the first forming groove and the second forming groove form the injection molding cavity together, the injection molding cavity is used for forming the plug-in part of the wire harness connector, the first fixed groove and the second fixed groove form the fixed installation groove together, the fixed installation groove is used for fixing the main body of the wire harness connector, and one end of the fixed installation groove away from the injection molding cavity is communicated with the external channel. The front die core is provided with the front die injection channel, the rear die core is provided with the rear die injection channel, the front die injection channel is communicated with the rear die injection channel, the number of the first forming groove, the first fixed groove, the second forming groove and the second fixed groove is multiple, multiple first forming grooves and first fixed grooves are arranged at intervals in the front die core, multiple second forming grooves and second fixed grooves are arranged at intervals in the rear die core, and the rear die injection channel is communicated with each injection molding cavity.

2. An injection molded structure for a wiring harness connector end as defined in claim 1, wherein, The front die core is provided with the positioning groove, the rear die core is provided with the positioning convex, and the positioning convex is embedded in the positioning groove.

3. The injection molded structure of a wiring harness connector end of claim 1, wherein, The first fixed groove is provided with the first convex, the second fixed groove is provided with the second convex, and the first convex and the second convex are used for adapting to the groove of the main body of the wire harness connector.

4. The injection molded structure of a wiring harness connector end of claim 1, wherein, The first fixed groove is provided with the first annular groove, the second fixed groove is provided with the second annular groove, and the first annular groove and the second annular groove are used for limiting the position of the main body of the wire harness connector.

5. The injection molded structure of a wiring harness connector end of claim 1, wherein, Multiple first forming grooves and multiple second fixed grooves are arranged symmetrically along the center of the front die core, multiple second forming grooves and multiple second fixed grooves are arranged symmetrically along the center of the rear die core.

6. The injection molded structure of a wiring harness connector end of claim 1, wherein, The front die core is provided with the first heating channel, and the first heating channel is arranged correspondingly along the positions of multiple first forming grooves and multiple first fixed grooves.

7. The injection molded structure of a wiring harness connector end as defined in claim 1 wherein, The rear die core is provided with the second heating channel, and the second heating channel is arranged correspondingly along the positions of multiple second forming grooves and multiple second fixed grooves.

8. The injection molded structure of a wiring harness connector end as defined in claim 1 wherein, The rear die injection channel comprises a first injection channel and a second injection channel, the first injection channel is communicated with the front die injection channel, the second injection channel is communicated with the first injection channel, and the second injection channel is also communicated with two adjacent injection molding cavities.

9. The injection molded structure of a wiring harness connector end of claim 8, wherein, The rear die injection channel is also provided with a cold material groove, and the cold material groove is communicated with the second injection channel.

10. An injection mold characterized by, The injection molding structure of the wire harness connector comprises the injection molding structure of the wire harness connector.

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