A wire harness overmolding mold

Abstract

The application discloses a wire harness covering mold and belongs to the technical field of wire harness molds. The wire harness covering mold comprises a mold assembly, the mold assembly is formed by splicing a plurality of module units one and module units two, the end faces of adjacent module units are in close contact after splicing, and cavity units are communicated to form a cavity accommodating a wire harness product. A supporting assembly is installed on the module unit one and the module unit two, and the splicing of adjacent module units is realized while the module unit one and the module unit two are installed on the supporting assembly. The module unit one and the module unit two are spliced to form a module unit, the supporting assembly is used as a supporting carrier of the module unit one and the module unit two, namely, the supporting assembly is used as an installation carrier of the module unit one and the module unit two, and the splicing between the module units is realized while installation is performed.

Description

Technical Field

[0001] This invention belongs to the field of wire harness mold technology, and specifically relates to a wire harness covering mold. Background Technology

[0002] Automotive wiring harnesses are the main network of automotive circuits; without wiring harnesses, there would be no automotive circuits. A wiring harness is an assembly that connects circuits by crimping copper contact terminals (connectors) to wires and cables, then molding an insulator or adding a metal shell, and finally bundling the wires together.

[0003] During the manufacturing process, wire harness products need to be covered. Most existing wire harness covering molds are manufactured according to the specifications of the wire harness products. For example, patent document CN105690699A discloses an automotive wire harness injection mold that solves the temperature problem during injection molding. However, existing molds can only be used for covering wire harness products of a single specification, resulting in low applicability. Summary of the Invention

[0004] The purpose of this invention is to provide a wire harness covering mold to solve the problems mentioned in the background art regarding the use of existing wire harness molds.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire harness covering mold, comprising a mold assembly, wherein the mold assembly is formed by splicing together several module units one and module units two, wherein after splicing, the end faces of adjacent module units are in close contact, and the cavity units are connected to form a cavity for accommodating the wire harness product;

[0006] The support assembly for installing module unit one and module unit two allows adjacent module units to be spliced ​​together while being installed on the support assembly.

[0007] Preferably, the upper mold base and the lower mold base have a plurality of through holes spaced apart along the splicing direction of the first module unit and the second module unit, and the contact surfaces of the first module unit and the second module unit with the upper mold base and the lower mold base have mounting holes adapted to the through holes.

[0008] Preferably, the length of the second module unit is the same as the length of the adjacent through-hole spacing, and the length of the first module unit is an integer multiple of the length of the second module unit.

[0009] Preferably, the center of the mounting hole on the second module unit is located on the plane of symmetry of the second module unit, and the mounting holes on the first module unit are located at the four corners of the first module unit.

[0010] Preferably, the first module unit includes an upper mold unit and a lower mold unit that are adapted to each other, and the second module unit includes a lower mold unit and a lower mold unit that are adapted to each other.

[0011] Preferably, the support assembly includes an upper mold base and a lower mold base that are adapted to each other, the upper mold unit one and the upper mold unit two are mounted on the upper mold base, and the lower mold unit one and the lower mold unit two are mounted on the lower mold base.

[0012] Preferably, the module unit one further includes a first component and a second component.

[0013] Preferably, the first component includes a mold-closing part and a rotating part, wherein the mold-closing part rotates around the rotating part to achieve pre-molding of the product.

[0014] Preferably, the second component includes a main body and a protrusion, the protrusion extending from the top surface of the main body and exceeding the parting surface of the lower mold base by a certain height.

[0015] Preferably, it also includes an injection molding assembly, which includes a plurality of injection molding base components fixed on the upper mold base, and the injection molding base components, the upper mold base, and the mold assembly have injection channels communicating with the cavity.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By disassembling the complete mold assembly into several module units 1 and 2, and then assembling module units 1 and 2 to form a module unit, and using the support component as the support carrier for module units 1 and 2, the module units can be assembled simultaneously during installation. Workers can select an appropriate number of module units 1 and 2 according to the actual specifications of the product to assemble the injection mold for that specification of wire harness product. This eliminates the need to manufacture a special mold for a single product, thus improving the applicability of the mold. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the mold assembly structure of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram showing the specifications of module unit one and module unit two of the present invention;

[0022] Figure 5 This is a schematic diagram of the through-hole specifications of the present invention;

[0023] Figure 6This is a schematic diagram of the structure of a module unit of the present invention;

[0024] Figure 7 This is a schematic diagram of the second type of module unit structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the two-type three-structure module unit of the present invention;

[0026] Figure 9 This is a schematic diagram of the second type of module unit of the present invention.

[0027] Figure 10 This is a top view of the structure of the present invention;

[0028] Figure 11 for Figure 10 Sectional view of AA.

[0029] In the diagram: 100, Support assembly; 101, Upper mold base; 102, Lower mold base; 200, Mold assembly; 201, Module unit one; 202, Upper mold unit one; 203, Lower mold unit one; 204, Module unit two; 205, Upper mold unit two; 206, Lower mold unit two; 207, Cavity unit; 208, Through hole; 209, Mounting hole; 209a, First mounting hole; 209b, Second mounting hole; 300, Injection assembly; 301, Injection base component; 302, Injection channel; 400, First component; 400a, Mold closing part; 400b, Rotating part; 500, Second component; 500a, Main body part; 500b, Protrusion; 600, Sealing hole; 601, Sealing plate; 602, Wire clamping assembly; 603, Runner. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-11A wire harness covering mold includes a support assembly 100 and a mold assembly 200 mounted on the support assembly 100. The support assembly 100 includes an upper mold base 101 and a lower mold base 102 that are adapted to each other. The upper mold base 101 and the lower mold base 102 serve as support carriers for the mold assembly 200, thereby enabling the installation of the mold assembly 200. Positioning holes are provided at the four corners of the upper mold base 101 and the lower mold base 102 for mounting guide posts, facilitating positioning during mold closing. An injection molding assembly 300 is also provided on the upper mold base 101. The 300 includes several injection molding base components 301 fixed to the upper mold base 101 by screw connectors. The injection molding base components 301, the upper mold base 101 and the mold assembly 200 are provided with injection channels 302 that communicate with the cavity inside the mold assembly 200. Adhesive flows into the cavity inside the mold assembly 200 through the injection channels 302 until the adhesive fills the entire cavity, thereby completing the injection molding operation. At the same time, flow channels 603 are also provided on the upper mold base 101 and the lower mold base 102 for heating the mold assembly 200 during the product injection molding process.

[0032] Specifically, the mold assembly 200 is formed by splicing several module units 1 201 and module units 204. Both module units 1 201 and module units 204 include mutually compatible upper mold units and lower mold units. The upper mold units and lower mold units are fixed on the upper mold base 101 and the lower mold base 102, respectively. The upper mold units and lower mold units move with the upper mold base 101 and the lower mold base 102, thereby realizing mold closing and mold unloading operations. After a single upper mold unit and lower mold unit are closed, a cavity unit 207 is formed. After module units 1 201 and module units 204 are spliced, multiple cavity units 207 are connected to form the injection cavity of the product. The product is encapsulated by injection molding into the injection cavity.

[0033] Furthermore, module unit 1 201 and module unit 204 are installed on the upper mold base 101 and the lower mold base 102 according to a predetermined rule. During the installation of module unit 1 201 and module unit 204, they are simultaneously spliced ​​together. After splicing, the end faces of adjacent module units are in close contact, and the cavity units 207 of adjacent module units are connected, meaning that the adhesive can communicate between the cavity units 207. Preferably, the connection between module unit 1 201 and module unit 204 and the upper mold base 101 and the lower mold base 102 is achieved using screws or other connectors. Specifically, a linear track is provided on the opposing surfaces of the upper mold base 101 and the lower mold base 102 along the splicing direction of the first mold base unit 201 and the second module unit 204. A number of through holes 208 are provided at intervals on the bottom surface of the linear track. Correspondingly, mounting holes 209 that are adapted to the through holes 208 are provided on the contact surfaces of the first module unit 201 and the second module unit 204 with the bottom surface of the linear track. During installation, the mounting holes 209 on the first module unit 201 and the second module unit 204 are aligned with the through holes 208 on the bottom surface of the linear track, and the first module unit 201 and the second module unit 204 are installed by means of screws or other connecting parts.

[0034] Furthermore, since the splicing of module unit 1 201 and module unit 204 needs to be achieved simultaneously during the installation of module unit 1 201 and module unit 204, and an appropriate number of module units 1 201 and module unit 204 needs to be selected according to the specifications of the wire harness product, preferably, the specifications of module unit 1 201 and module unit 204 should satisfy the following relationship with the setting method of through hole 208: (Refer to...) Figure 4 and Figure 5 For ease of description, the length of module unit 1 201 is denoted as L1, the length of module unit 204 is denoted as L2, and the interval between through holes 208 is denoted as L3. To achieve the above purpose, L1, L2, and L3 should satisfy the following relationship:

[0035] L2 = L3, and L1 = NL2 (N ≥ 2), assuming N = 4, the mounting holes 209 on module unit 204 are arranged along its symmetry plane. The distance from the center of the mounting hole 209 to the end face of module unit 204 is 1 / 2L2. When two module units 204 are joined, the center distance between the mounting holes 209 in adjacent module units 204 is L2, which is equal to the interval L3 between adjacent through holes 208. After joining, the end faces of adjacent module units are in close contact. The mounting holes 209 in module unit 1 201 are located at the four corners of module unit 1 201. Two mounting holes 209 located on the same side of the symmetry plane are selected for explanation and are respectively denoted as the first mounting hole 209a and the second mounting hole 209b. The distance between the first mounting hole 209a and the end face of module unit 1 201 is 1 / 8L1. The center distance between the first mounting hole 209a / 209 and the second mounting hole 209b is 3 / 4L1. When module unit 1 201 is spliced ​​with another module unit 1 201 or module unit 204, the distance between adjacent mounting holes 209 in adjacent module units is L2. In summary, after module unit 1 201 and module unit 204 are installed, the end faces of adjacent module units are always in close contact, thereby realizing the splicing of mold assembly 200 at the same time as installation. Furthermore, by setting module unit 1 201 and module unit 204 with different specifications, on the one hand, it is possible to splice different wire harness product molds, expand the application range of splicing molds, and make them suitable for the wrapping of wire harness products of different specifications. On the other hand, by setting a larger module unit 1 201, the splicing time can be reduced and the assembly efficiency of mold assembly 200 can be improved.

[0036] Specifically, refer to Figures 6-9Let the upper mold unit of module unit 1 201 be upper mold unit 202 and lower mold unit 203, respectively, and the upper mold unit of module unit 2 204 be upper mold unit 205 and lower mold unit 206, respectively. Furthermore, because the overall length of the wire harness product is relatively long and the product is relatively loose, during the mold closing operation, some wire harness products will be scattered onto the parting surface of the mold. This will affect the quality of the mold closing, causing the upper and lower molds to not fit well together. On the other hand, it will cause compression of the wire harness product during the mold closing process. To ensure the quality of the mold closing, in addition to the mutually compatible upper mold unit 202 and lower mold unit 206, the above-mentioned module unit 1 201 also includes upper mold unit 202 and lower mold unit 206. In addition to component 6, it also includes a first component 400 and a second component 500. Specifically, the first component 400 includes a mold closing part 400a and a rotating part 400b. The upper mold unit 202 has a notch that matches the mold closing part 400a, while the lower mold unit has a groove to accommodate the rotating part 400b. When the wire harness component is placed in the cavity of the lower mold unit, the mold closing part 400a rotates around the rotating part 400b to a horizontal position. At this time, a "partial" cavity unit 207 is formed between the mold closing part 400a and the lower mold unit 203, thereby playing a pre-molding role. After pre-molding, it can play a pre-closing role for the wire harness product and prevent the wire harness product from dispersing before mold closing.

[0037] Furthermore, the second component 500 includes a main body 500a and a protrusion 500b. Correspondingly, the upper mold component and the lower mold component are respectively provided with grooves that are adapted to the protrusion 500b and the main body 500a. The protrusion 500b extends upward from the top surface of the main body 500a into the groove in the upper mold unit 202. That is, the height of the top surface of the protrusion 500b is higher than the height of the parting surface of the lower mold unit. By setting the second component 500, the upper mold unit 202 and the lower mold unit 206 can further prevent the wire harness products from being scattered on the parting surface when the mold is closed.

[0038] Furthermore, considering that some wire harness products have branches, module unit 204 includes three types, referred to as type one, type two, and type three. The specifications of the three types of module unit 204 are the same. The difference is that the cavity settings in the three types of module unit 204 are different. The cavity of type one is a straight single channel, the cavity of type two is a cross-shaped channel, and the cavity of type three is a "T" shaped channel. Type one is suitable for covering wire harness products without branches, type two is suitable for covering wire harness products with double branches, and type three is suitable for covering wire harness products with single branches. Correspondingly, the upper mold base 101 and the lower mold base 102 are also provided with straight rails on their opposite faces at the branch positions, and module unit 201 and module unit 204 for covering the branches of the wire harness products are installed on the straight rails.

[0039] Furthermore, both module unit 1 201 and module unit 2 204 have sealing holes 600 on their end faces for mounting sealing plates 601 on the end faces of the overall mold assembly 200. The sealing plates 601 also have sealing holes 600 for wire harness products to pass through only. Preferably, a wire clamping assembly 602 is provided on the outside of the sealing plates 601 for clamping and fixing the ends of the wire harness products.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire harness overmold, characterized by: Comprising a mold assembly formed by splicing a plurality of mold unit one and mold unit two, after splicing, the end faces of adjacent mold units are in close contact, and the mold cavity units are connected to form a mold cavity for accommodating the wire harness product; a support assembly for mounting the mold unit one and the mold unit two, the splicing of adjacent mold units is realized when the mold unit one and the mold unit two are mounted on the support assembly; the support assembly comprises a upper die holder and a lower die holder which are adapted to each other, a plurality of through holes are arranged on the opposite faces of the upper die holder and the lower die holder along the splicing direction of the mold unit one and the mold unit two, and a plurality of mounting holes are arranged on the contact faces of the mold unit one and the mold unit two which are adapted to the through holes; the length of the mold unit two and the length between adjacent through holes are the same, and the length of the mold unit one is an integer multiple of the length of the mold unit two; the center of the mounting hole on the mold unit two is located on the symmetry plane of the mold unit two, and the mounting hole on the mold unit one is arranged at the four corners of the mold unit one; the mold unit one comprises a upper die unit one and a lower die unit one which are adapted to each other, and the mold unit two comprises a lower die unit two and a lower die unit two which are adapted to each other; the upper die unit one and the upper die unit two are mounted on the upper die holder, and the lower die unit one and the lower die unit two are mounted on the lower die holder; the mold unit one further comprises a first part and a second part, the first part comprises a clamping part and a rotating part, the clamping part rotates around the rotating part to realize the pre-clamping of the product, and the second part comprises a main body part and a protruding part which extends from the top face of the main body part by a certain height beyond the parting surface of the lower die holder.

2. A wire harness overmold according to claim 1, wherein: further comprising an injection molding assembly, the injection molding assembly comprises a plurality of injection seat parts fixed on the upper die holder, and the injection seat parts, the upper die holder and the mold assembly are formed with injection channels which are communicated with the mold cavity.

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