CN216980158U

CN216980158U - Wire harness assembly and manufacturing equipment thereof

Info

Publication number: CN216980158U
Application number: CN202123371569.3U
Authority: CN
Inventors: 王启雷; 张义洲; 张军
Original assignee: Continental Automotive Corp Lianyungang Co Ltd
Current assignee: Continental Automotive Corp Lianyungang Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-15
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a wire harness assembly and a manufacturing device thereof. The wire harness assembly comprises a wire harness and a rubber sleeve, wherein the rubber sleeve is arranged on the wire harness. At least one section of groove is formed at the injection molding parting line on the surface of the rubber sleeve, and the injection molding parting line at the section of groove is positioned at the bottom of the groove. The manufacturing apparatus includes an injection mold. The injection mold comprises an upper mold, a lower mold and a mold cavity formed between the upper mold and the lower mold. And flange parts protruding inwards towards the die cavity are respectively formed on the upper die and the lower die at one ends of the parting surfaces of the upper die and the lower die, which are close to the die cavity. The wire harness assembly and the manufacturing equipment thereof effectively overcome the defects in the prior art, are beneficial to removing redundant burrs and reduce the influence of the burrs on the installation process to the minimum.

Description

Wire harness assembly and manufacturing equipment thereof

Technical Field

The utility model belongs to the technical field of wire harnesses, and particularly relates to a wire harness assembly applied to a sensor and manufacturing equipment thereof.

Background

Sensors on vehicles require wiring harnesses to transmit electrical signals. In order to wire the vehicle body, it is often necessary to provide a rubber boot over the wire harness in order to mount the wire harness to the vehicle body structural member. In the existing injection molding of the rubber sleeve, an electric wire needs to be placed into a mold core and two ends of the electric wire are fixed, a parting surface is sealed after mold assembly, and the rubber sleeve is injected to a wire harness of a sensor after injection molding.

During injection molding, due to the influences of adverse factors such as the smooth finish, abrasion and deformation of parting surfaces of the upper and lower mold cavities, or excessive injection molding pressure and the like, injection molding materials overflow along the parting surfaces, so that burrs are formed at the parting line on the surface of the rubber sleeve (as shown in figure 1). These burrs interfere with customer installation, require additional steps to remove, cause increased costs, and are difficult to remove in some locations.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wire harness assembly and a manufacturing device thereof, aiming at overcoming the defects in the prior art, and overcoming the influence of burrs on the installation of the wire harness assembly.

In order to achieve the purpose, the utility model provides a wire harness assembly which comprises a wire harness and a rubber sleeve, wherein the rubber sleeve is arranged on the wire harness, at least one section of groove is formed at an injection parting line on the surface of the rubber sleeve, and the injection parting line at the section of groove is positioned at the bottom of the groove.

Preferably, the groove bottom is arc-shaped.

Preferably, the bottom of the groove is in the shape of a circular arc or a parabolic arc.

Preferably, the connection part of the side wall of the groove and the surface of the rubber sleeve is in arc transition.

Preferably, the rubber sleeve is sleeved on the wire harness or integrally formed on the wire harness by injection molding.

In order to achieve the above object, the present invention also provides a manufacturing apparatus for manufacturing the above wire harness assembly, comprising an injection mold including an upper mold, a lower mold, and a mold cavity formed between the upper mold and the lower mold, wherein one end of a parting surface of the upper mold and the lower mold near the mold cavity is formed with a flange portion protruding inward the mold cavity.

Preferably, in the clamped state, the flange portion of the upper mold and the flange portion of the lower mold are in close contact with each other and together form a flange protruding inward of the cavity.

Preferably, the cross-sectional shape of the flange is arcuate.

Preferably, an expansion groove is formed in the parting surface of the upper die and the lower die, and one end of the expansion groove is communicated with the die cavity along the parting surface.

Preferably, the other end of the expansion groove is communicated with a channel of the mold ejection mechanism.

Compared with the prior art, the wire harness assembly and the manufacturing equipment thereof overcome the defects of the prior art. According to the wiring harness assembly, the rubber sleeve adopts the groove structure design, burrs generated after the rubber sleeve is demoulded are positioned on the bottom surface of the groove and are lower than the outer circular surface of the whole rubber sleeve, and the assembly of a client cannot be influenced. In addition, the injection mold in the manufacturing equipment of the utility model is provided with an expanding groove and a flange on the parting surface. When the mold is closed and injection molded, a part of excessive materials in the mold cavity can overflow into the expanding groove to form expanding burrs, and the rubber sleeve is provided with a groove due to the existence of the flange. The design of expanding burrs and the groove structure of the rubber sleeve is benefited, and the minimum area of the expanded burr section is positioned at the root part of the groove of the rubber sleeve and is also the position which is most easily broken by external force. And after the mold is opened, the rubber sleeve is taken out, and the expanded burrs are pulled down and removed from the root of the groove, so that the purpose of removing the burrs at the parting line of the rubber sleeve is further achieved.

Drawings

FIG. 1 is a schematic view of a burr formed after injection molding of a conventional rubber boot;

FIG. 2 is a schematic view of a wire harness assembly in accordance with a preferred embodiment of the present invention;

FIG. 3 is a sectional view taken along line B-B of FIG. 2;

FIG. 4 is a partial top view of a mold in accordance with a preferred embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of the mold A-A of FIG. 4;

fig. 6 is a partially enlarged view of portion C of fig. 5.

Detailed Description

The utility model will be further explained with reference to the drawings and the preferred embodiments.

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it should be understood that the utility model is not limited to the specific embodiments described. Rather, it is contemplated that the utility model may be practiced with any combination of the following features and elements, whether or not they relate to different embodiments. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim. In addition, in this document, terms indicating directions such as up, down, left, right, upper, lower, and the like are used for convenience of description only and are expressed according to relative positions of components in the current drawings, and should not be construed as limiting the scope of protection.

FIG. 2 is a schematic view of a wire harness assembly in accordance with a preferred embodiment of the present invention; fig. 3 is a sectional view taken along line B-B in fig. 2.

As shown in fig. 2 and 3, the present embodiment provides a wire harness assembly including a wire harness 1 and a rubber boot 2. The rubber sleeve 2 is disposed on the wire harness 1, for example, the rubber sleeve 2 may be sleeved on the wire harness 1 or integrally formed on the wire harness 1 by injection molding.

As shown in fig. 3, at least one section of groove is formed at the injection parting line of the surface of the rubber sleeve 2 (where the surface of the rubber sleeve intersects with the die cavity parting line in the drawing), four sections of

grooves

21, 22, 23, 24 are formed on the rubber sleeve 2 in the drawing in a left-right symmetry manner, and the injection parting lines at the

grooves

21, 22, 23, 24 are located at the bottoms of the grooves, that is, the die cavity parting line in the drawing just crosses the bottoms of the

grooves

21, 22, 23, 24.

Further, the bottom of these

grooves

21, 22, 23, 24 is arc-shaped, preferably circular arc-shaped or parabolic arc-shaped. The joints of the side walls of these

grooves

21, 22, 23, 24 and the surface of the rubber sleeve 2 are in the shape of smoothly transitional arcs. Because the setting of these recesses for 2 injection moulding backs of rubber sleeve, the burr that is located the parting line department of moulding plastics can hold in these recesses completely, can not bulge the surface of rubber sleeve 2, when making the rubber sleeve install on the automobile body, and is easier, can not cause the installation obstacle.

FIG. 4 is a partial top view of a mold in accordance with a preferred embodiment of the present invention; FIG. 5 is a partial cross-sectional view of the mold A-A of FIG. 4; fig. 6 is a partially enlarged view of portion C of fig. 5.

As shown in fig. 4, 5 and 6, the present invention also provides a manufacturing apparatus for manufacturing the above wire harness assembly. The manufacturing apparatus includes an injection mold 3, and the injection mold 3 includes an upper mold 4, a lower mold 5, and a mold cavity 6 formed between the upper mold 4 and the lower mold 5. Referring to fig. 6, the upper die 4 and the lower die 5 are formed with

flange portions

41, 51 protruding inward of the cavity 6, respectively, on the parting surfaces of the upper die 4 and the lower die 5 near one end of the cavity 6. After the mold closing, the flange portion 41 of the upper mold 4 and the flange portion 51 of the lower mold 5 are closely adhered to each other, and the flange 7 projecting inward of the cavity is formed. The cross-sectional shape of the flange 7 is a smoothly transitioning arc, preferably a circular arc, a parabolic arc, or the like.

Further, an expansion groove 8 is formed on the parting surface of the upper die 4 and the lower die 5, and one end of the expansion groove 8 is communicated with the die cavity 6 along the parting surface. The other end of the expansion groove 8 is communicated with a channel of the mold ejection mechanism 9.

The expansion groove is formed in the injection mold, when the mold is closed for injection, a part of excessive materials in the mold cavity can overflow into the expansion groove to form expansion burrs, the design of the expansion burrs and the groove structure of the rubber sleeve is benefited, and the minimum area of the section of the expansion burrs is positioned at the root part of the groove of the rubber sleeve and is also the position which is most easily broken by external force. And taking out the rubber sleeve after the mold is opened, and removing the expanded burrs from the root of the groove to achieve the purpose of removing the burrs at the parting line of the rubber sleeve. After the structural design of the groove is adopted, even if burrs are generated after the rubber sleeve is demoulded, the burrs are lower than the whole outer circular surface of the rubber sleeve on the bottom surface of the groove, and the assembly of a customer is not influenced.

Although the present invention has been described with reference to the preferred embodiments, it is not limited thereto. Various changes and modifications within the spirit and scope of the present invention will become apparent to those skilled in the art from this disclosure, and it is intended that the scope of the present invention be defined by the appended claims.

Claims

1. The utility model provides a wire harness assembly, includes pencil and rubber sleeve, the rubber sleeve sets up on the pencil, its characterized in that, the parting line department of moulding plastics on rubber sleeve surface forms one section recess at least, and this section recess department the parting line of moulding plastics is located the recess bottom.

2. The wire harness assembly of claim 1 wherein the recess bottom is arcuate.

3. The wire harness assembly of claim 2 wherein the recess bottom is arcuate or parabolic.

4. A wiring harness assembly as claimed in claim 2 or 3 wherein the junction of the side walls of the recess and the surface of the rubber sleeve is in the form of an arcuate transition.

5. A wire harness assembly as claimed in any one of claims 1 to 3, wherein the rubber boot is fitted over the wire harness or integrally formed on the wire harness by injection moulding.

6. A manufacturing apparatus for manufacturing a wire harness assembly as claimed in any one of claims 1 to 5, comprising an injection mold including an upper mold, a lower mold and a mold cavity formed therebetween, wherein the upper mold and the lower mold are formed with flange portions protruding inward of the mold cavity on parting surfaces thereof near one end of the mold cavity, respectively.

7. The manufacturing apparatus according to claim 6, wherein in the clamped state, the flange portion of the upper mold and the flange portion of the lower mold are brought into close contact with each other and together form a flange projecting inward of the cavity.

8. The manufacturing apparatus of claim 7, wherein the cross-sectional shape of the flange is arcuate.

9. The manufacturing apparatus as set forth in claim 6, wherein the parting surfaces of the upper and lower molds have expanding grooves formed thereon, one end of the expanding groove communicating with the mold cavity along the parting surface.

10. The manufacturing apparatus as set forth in claim 9, wherein the other end of said expanding groove communicates with a passage of a mold ejection mechanism.