A wiring harness mold strip opening and closing mechanism

Abstract

The present invention discloses a wire harness mold strip opening and closing mechanism, including an upper template and a lower template; the strip is fixed to the upper surface of the lower template by a snap-on structure, a cover plate is rotatably provided above the strip, and a wire pressing hole for the wire harness to pass through can be formed when the cover plate and the strip are in contact with each other, and the upper template can be lowered to be molded against the lower template to press the cover plate and the strip; a first ejection mechanism is partially lifted and movably provided in the lower template, and the top of the first ejection mechanism can rise to pass through the strip and push the cover plate open; a second ejection mechanism is partially lifted and movably provided in the lower template, and the top of the second ejection mechanism can rise to be against the strip; when the first ejection mechanism pushes the cover plate open, the second ejection mechanism moves to release the fixation of the strip by the snap-on structure, and can continue to rise to push the strip out. According to the wire harness mold strip opening and closing mechanism provided by the present invention, after the injection molding is completed, the cover plate and the strip are pushed open in sequence, and then the product is taken out, which can avoid pulling the wire harness and reduce the product defect rate.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a wire harness mold strip opening and closing mechanism. Background Art

[0002] Most plastic wire harnesses are made by injection molding. Wire harness molds are widely used. For products with high requirements for wire harness appearance, it is extremely important to place the wire harness safely in the mold and avoid wire crimping.

[0003] At present, in the existing production process, the wire harnesses need to be placed manually in the mold, which is difficult to operate manually and has great safety hazards. Putting the wire harness directly into the mold has very high requirements on the placement method. If it is not placed properly, it is easy to press the wire when the mold is closed. After the wire harness is clamped and then the mold is opened to take out the product, the wire harness is easily pulled and damaged, and the product defective rate is very high. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a wire harness mold strip opening and closing mechanism, which fixes the wire harness through a cover plate and a mold strip, and after the injection molding is completed, the cover plate and the mold strip are pushed open in sequence, and then the product is taken out, which can avoid pulling the wire harness, reduce the product defect rate, and improve processing efficiency.

[0005] According to the first aspect of the present invention, a wire harness mold strip opening and closing mechanism includes an upper template and a lower template, the upper template is arranged above the lower template and can be lifted and lowered relative to the lower template; the mold strip is fixed to the upper surface of the lower template by a snap-fit ​​structure, a cover plate is rotatably arranged above the mold strip, and when the cover plate and the mold strip are in contact, a wire pressing hole for the wire harness to pass through can be formed, and the upper template can be lowered to abut against the lower template to clamp the cover plate and the mold strip; a first ejection mechanism is partially lifted and movably provided in the lower template, and the top of the first ejection mechanism can rise to pass through the mold strip and push the cover plate open; a second ejection mechanism is partially lifted and movably provided in the lower template, and the top of the second ejection mechanism can rise to abut against the mold strip; when the first ejection mechanism pushes the cover plate open, the second ejection mechanism moves to release the fixation of the snap-fit ​​structure to the mold strip, and can continue to rise to eject the mold strip.

[0006] A wire harness mold strip opening and closing mechanism according to an embodiment of the present invention has at least the following technical effects: compared with manual placement of the wire harness, the wire harness is fixed by the strip cover plate and then placed in the mold, which is simple and convenient, and the placement position will not be wrong, which can improve production efficiency; after the injection molding is completed, one end of the wire harness is connected to the injection molded product, and the other end is clamped; the upper mold plate rises, and the upper mold plate and the lower mold plate are opened, and the first ejection mechanism rises first to push the cover plate open, so that the wire harness is no longer clamped by the cover plate and the mold strip, and the second ejection mechanism rises again to eject the mold strip and the injection molded product from the lower positioning groove and the cavity; the first ejection mechanism and the second ejection mechanism are lifted up in turn, and when the product is taken out, the wire harness is no longer constrained, which reduces the pulling of the wire harness, avoids pulling and damaging the wire harness, reduces the product defective rate, and improves processing efficiency.

[0007] According to some embodiments of the present invention, a first crimping groove is provided on the cover plate, and a second crimping groove is provided on the mold strip. When the cover plate is rotated to fit with the mold strip, the first crimping groove and the second crimping groove cooperate to form a crimping hole.

[0008] According to some embodiments of the present invention, a cavity is provided on the lower template for injection molding, a wire crimping hole is connected to the cavity, one end of the wire harness is fixed in the wire crimping hole, and the other end extends into the cavity so as to connect the wire harness and the molded product during injection molding.

[0009] According to some embodiments of the present invention, the first ejection mechanism includes a first ejector rod and a ejector plate. The ejector plate is movably arranged below the lower template, and a first ejection hole is penetrated through the mold bar. The lower end of the first ejector rod is fixedly connected to the top plate, and the upper end extends into the first ejection hole and can be lifted and lowered along the first ejection hole. The first ejector rod can rise with the top plate to push the cover plate open.

[0010] According to some embodiments of the present invention, a bayonet is provided on the side of the mold strip, and a corresponding slot is provided on the lower mold plate; the buckle structure is movably disposed in the slot and can move along the slot toward the mold strip, and the buckle structure can move to partially extend into the bayonet to limit the mold strip.

[0011] According to some embodiments of the present invention, the second ejection mechanism includes a second ejector rod and an ejector plate. The ejector plate is movably arranged below the lower mold plate, and a second ejector groove is opened at the bottom of the mold strip, and the second ejector groove is connected with the bayonet. The lower end of the second ejector rod is fixedly connected to the ejector plate, and the upper end extends into the second ejector groove and can be lifted and lowered in the second ejector groove. The second ejector rod can rise with the ejection plate until it is against the buckle structure, and can continue to rise to push the buckle structure out of the bayonet.

[0012] According to some embodiments of the present invention, the snap structure includes a snap block and a snap spring, the snap block is arranged in a snap slot, one end of the snap spring is connected to the inner wall of the snap slot, and the other end is connected to the snap block; the snap block can move along the snap slot so that the snap block is away from one end of the snap spring and embedded in the snap port.

[0013] According to some embodiments of the present invention, a push block inclined surface is provided on the upper portion of the second push rod, and when the upper end of the second push rod rises to the height of the bayonet, the block abuts against the push block inclined surface to push the block out of the bayonet.

[0014] According to some embodiments of the present invention, the ejection plate is fixedly connected to the top plate, the second ejector rod rises and falls with the first ejector rod, and when the first ejector rod pushes the cover plate open, the inclined surface of the push block abuts against the clamping block.

[0015] According to some embodiments of the present invention, a plurality of first guide pillars are connected to the top plate, and upper ends of the first guide pillars pass through the lower template to provide guidance for the movement of the top plate.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 is a schematic diagram of the installation structure of an embodiment of the present invention;

[0019] Figure 2 When the mold is closed Figure 1 Sectional view at point A in the middle;

[0020] Figure 3 is an exploded view of an embodiment of the present invention;

[0021] Figure 4 yes Figure 1 Sectional view at point B in the middle;

[0022] Figure 5 When the mold is opened Figure 1 Section view at point A.

[0023] Reference numerals:

[0024] Upper mold plate 100, upper positioning groove 101, lower mold plate 110, mold cavity 111, lower positioning groove 112, clamping groove 113, upper mold frame 120, pouring gate 121, lower mold frame 130, connecting screw 131, fixing plate 140, first guide column 150, second guide column 160, guide cylinder 161;

[0025] The mold strip 200, the second pressing groove 201, the first ejection hole 202, the clearance hole 203, the bayonet 204, the second ejection groove 205, the cover plate 210, the first pressing groove 211, the guide groove 212, the guide port 213, the buckle structure 220, the clamping block 221, the buckle spring 222, the positioning block 223, the threaded hole 224, and the sliding block 225;

[0026] A first ejection mechanism 300, a first ejector rod 310, and an ejector plate 320;

[0027] The second ejection mechanism 400 , the second ejector rod 410 , the push block inclined surface 411 , and the ejection plate 420 . DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference Figures 1 to 3 A wire harness mold strip opening and closing mechanism according to an embodiment of the present invention includes an upper mold plate 100, a lower mold plate 110, a mold strip 200, a first ejection mechanism 300, and a second ejection mechanism 400.

[0032] An upper mold frame 120 is fixedly connected to the upper portion of the upper mold plate 100 , and a lower mold frame 130 is connected below the lower mold plate 110 . The lower mold frame 130 serves as a base for fixedly supporting the entire structure. The upper template 100 is arranged directly above the lower template 110. The upper template 100 and the upper mold frame 120 are connected with a lifting cylinder that can drive them to rise and fall. The upper template 100 can rise and fall relative to the lower template 110 to realize the opening and closing of the mold; a cavity 111 is provided between the upper template 100 and the lower template 110, and the cavity 111 can be provided on the lower surface of the upper template 100, the upper surface of the lower template 110, or when the upper template 100 and the lower template 110 are closed, the two are spliced ​​together; a pouring port 121 is provided on the upper surface of the upper mold frame 120, and the upper template 100 is provided with a pouring channel that runs through from top to bottom. When closing the mold, the upper template 100 and the lower template 110 are abutted against each other, and the pouring port 121 is connected with the cavity 111 through the pouring channel. The injection liquid flows from the pouring port 121 through the pouring channel and then flows into the cavity 111 for molding.

[0033] The mold strip 200 is fixed to the upper surface of the lower mold plate 110 through a snap-fit ​​structure 220. A cover plate 210 is rotatably provided above the mold strip 200. When the cover plate 210 and the mold strip 200 are fitted together, a wire crimping hole can be formed for the wire harness to pass through. The cover plate 210 is turned away from the mold strip 200, the wire harness is loaded into the wire crimping hole, and then the cover plate 210 is turned to cover, and the cover plate 210 and the mold strip 200 clamp and fix the wire harness. Compared with manually placing the wire harness, fixing the wire harness through the mold strip 200 and the cover plate 210 and then placing it in the mold is simple and convenient, and the placement position will not be wrong, which can improve production efficiency.

[0034] A lower positioning groove 112 is provided on the upper surface of the lower template 110 for positioning the mold strip 200. The mold strip 200 is installed in the lower positioning groove 112. The upper template 100 can be lowered to abut against the lower template 110 to press the cover plate 210 and the mold strip 200; an upper positioning groove 101 is also provided on the lower surface of the upper template 100. Before injection molding, the lifting cylinder drives the upper template 100 to descend so that it is lowered to abut against the lower template 110 to press the cover plate 210 and the mold strip 200. The upper positioning groove 101 and the lower positioning groove 112 cooperate to limit the mold strip 200. The upper template 100 and the lower template 110 cooperate to press the cover plate 210 and the mold strip 200, thereby further fixing the wiring harness to avoid dislocation or pulling damage of the wiring harness due to movement of the cover plate 210 or the mold strip 200 during injection molding.

[0035] Reference Figure 4 The first ejection mechanism 300 is partially movable and is disposed in the lower mold plate 110. The top of the first ejection mechanism 300 can rise to pass through the mold strip 200 and push open the cover plate 210. Figure 5The second ejection mechanism 400 is partially lifted and movably disposed in the lower template 110, and the top of the second ejection mechanism 400 can rise to abut against the mold strip 200; when the first ejection mechanism 300 pushes open the cover plate 210, the second ejection mechanism 400 moves to release the fixing of the snap structure 220 on the mold strip 200, and can continue to rise to eject the mold strip 200. Specifically, after the injection molding is completed, the upper mold plate 100 rises, and the upper mold plate 100 and the lower mold plate 110 are opened; one end of the wire harness is connected to the injection molded product, and the other end is clamped by the cover plate 210 and the mold strip 200. If the mold strip 200 is ejected at this time, the wire harness may be pulled and damaged; therefore, the first ejection mechanism 300 rises first to push open the cover plate 210 so that the wire harness is no longer clamped by the cover plate 210 and the mold strip 200, and the second ejection mechanism 400 rises again to eject the mold strip 200 and the injection molded product from the lower positioning groove 112 and the cavity 111. The first ejection mechanism 300 and the second ejection mechanism 400 are lifted up in sequence, and when the product is taken out, the wire harness will no longer be constrained, which reduces the pulling of the wire harness, avoids pulling and damaging the wire harness, reduces the product defect rate, and improves processing efficiency.

[0036] Reference Figure 3 In some specific embodiments of the present invention, the cover plate 210 is provided with a first crimping groove 211, the mold strip 200 is provided with a second crimping groove 201, and the cover plate 210 is hingedly connected to the mold strip 200 through a rotating shaft; when the cover plate 210 is rotated to fit the mold strip 200, the first crimping groove 211 and the second crimping groove 201 are opposite to each other, and the first crimping groove 211 and the second crimping groove 201 cooperate to form a crimping hole. Specifically, the first crimping groove 211 and the second crimping groove 201 are both circular grooves that match the wire harness, and the crimping hole formed by the combination of the two extends linearly along the width direction (left-right direction) of the mold strip 200, so as to confine the wire harness in the crimping hole.

[0037] Reference Figure 3 In a further embodiment of the present invention, a pouring channel is provided on the upper template 100, and a cavity 111 is provided on the lower template 110. The pouring channel is connected to the cavity 111 to inject the injection liquid into the cavity 111; the wire pressing hole is connected to the cavity 111, one end of the wire harness is fixed in the wire pressing hole, and the other end extends into the cavity 111, so as to connect the wire harness and the injection molded product during injection molding. Specifically, a guide groove 212 is provided on the cover plate 210, and the guide groove 212 extends along the length direction of the cover plate 210, and is connected to a guide port 213 extending downward, and the guide port 213 is connected to the cavity 111. The injection liquid enters the pouring channel from the pouring port 121, flows into the guide groove 212, and then flows into the cavity 111 along the guide port 213; the wire pressing hole is located at the middle height position of the cavity 111, and when the injection liquid fills the cavity 111, it also completely wraps the wire harness, and the wire harness and the injection molded product are fixedly connected together.

[0038] Reference Figure 4In some specific embodiments of the present invention, the first ejection mechanism 300 includes a first ejector rod 310 and an ejector plate 320. The ejector plate 320 is movable and is arranged below the lower mold plate 110. The mold strip 200 is provided with a first ejection hole 202. The lower end of the first ejector rod 310 is fixedly connected to the ejector plate 320, and the upper end thereof extends into the first ejection hole 202 and can be lifted and lowered along the first ejection hole 202. The first ejector rod 310 can rise with the ejector plate 320 to push open the cover plate 210. Specifically, the ejector plate 320 is connected to a first ejection cylinder. After the mold is opened, the first ejection cylinder drives the ejector plate 320 to move upward, and the first ejector rod 310 rises along the first ejection hole 202 to push open the cover plate 210, so that the cover plate 210 rotates outward around the rotation axis, thereby releasing the limit of the cover plate 210 on the wiring harness. Preferably, a clearance hole 203 is provided at the lower end of the first ejection hole 202 , and the diameter of the clearance hole 203 is larger than that of the first ejection hole 202 , so as to facilitate the first ejector rod 310 to be installed into the first ejection hole 202 .

[0039] Reference Figures 2 to 3 In a further embodiment of the present invention, a bayonet 204 is provided on the side of the mold bar 200, and a corresponding bayonet slot 113 is provided on the lower mold plate 110. When the mold bar 200 is installed in the lower positioning slot 112, the bayonet 204 is aligned and communicated with the bayonet slot 113. The buckle structure 220 is movably provided in the bayonet slot 113 and can move toward the mold bar 200 along the bayonet slot 113. The buckle structure 220 can move to partially extend into the bayonet 204 to limit the movement of the mold bar 200. Specifically, there are four buckle structures 220, which are respectively provided on the left and right sides of the front and rear ends of the mold bar 200, and the two buckle structures 220 at the same end are arranged opposite to each other, and four bayonet slots 204 are provided accordingly.

[0040] Reference Figure 2 In a further embodiment of the present invention, the second ejection mechanism 400 includes a second ejector rod 410 and an ejector plate 420. The ejector plate 420 is movable and is disposed below the lower mold plate 110. A second ejection groove 205 is opened at the bottom of the mold strip 200. The second ejection groove 205 extends upward from the bottom surface of the mold strip 200 for the second ejector rod 410 to extend into.

[0041] The second ejector rod 410 can be raised and lowered in the second ejector groove 205. Specifically, the ejector plate 420 is connected to a second ejector cylinder. After the first ejector pin pushes the cover plate 210 open, the second ejector cylinder drives the ejector plate 420 to move upward, and the second ejector rod 410 rises along the second ejector groove 205. After the second ejector rod 410 rises to abut against the top surface of the second ejector groove 205, as the second ejector rod 410 continues to rise, the mold strip 200 will move upward together, that is, the second ejector rod 410 can eject the mold strip 200 from the lower positioning groove 112. Figure 2 is the initial state of the second ejection mechanism 400, Figure 5 This is the state when the second ejection mechanism 400 ejects the mold strip 200.)

[0042] The lower end of the second ejector rod 410 is fixedly connected to the ejection plate 420, and the upper end extends into the second ejection groove 205, and can be raised and lowered in the second ejection groove 205. The second ejection groove 205 is connected to the bayonet 204. When the second ejector rod 410 moves in the second ejection groove 205, the peripheral wall of the second ejector rod 410 will abut against the buckle structure 220 in the bayonet 113. Figure 5 The second ejector rod 410 can rise along with the ejection plate 420 until it contacts the buckle structure 220 , and can continue to rise to push the buckle structure 220 out of the bayonet 204 .

[0043] Reference Figures 2 to 3 In a further embodiment of the present invention, the buckle structure 220 includes a block 221, a buckle spring 222 and a sliding block 225. The sliding block 225 is slidably disposed in the slot 113. One end of the buckle spring 222 is connected to the inner wall of the slot 113, and the other end is connected to the sliding block 225. The block 221 is disposed on the sliding block 225 at an end away from the buckle spring 222. The sliding block 225 can move along the slot 113 so that the block 221 is embedded in the bayonet 204. When the block 221 is embedded in the bayonet 204, the mold strip 200 is fixed on the lower mold plate 110. When the block 221 is separated from the bayonet 204, the mold strip 200 can move upward.

[0044] Reference Figure 5 When the second ejector 410 rises to abut against the top surface of the second ejection slot 205, the block 221 is pushed out of the bayonet 204 and into the bayonet slot 113 by the second ejector 410, the buckle spring 222 is compressed, and the up and down displacement of the mold strip 200 is no longer restricted. The second ejector 410 continues to rise to eject the mold strip 200; a plurality of third ejectors are also provided on the ejection plate 420, and the third ejectors are provided below the cavity 111. When the second ejector 410 ejects the mold strip 200, the third ejectors eject the product at the same time. Figure 2 After the product is ejected, the mold strip 200 is re-placed to wait for the next processing. The second ejector rod 410 is first lowered and reset. The force of the second ejector rod 410 on the block 221 disappears, the snap spring 222 is stretched and reset, and the slider 223 moves toward the mold strip 200 and resets under the elastic force of the snap spring 222. The block 221 is re-embedded in the bayonet 204 to fix the mold strip 200.

[0045] Preferably, refer to Figure 3A positioning block 223 is also installed above the block 221, and the positioning block 223 can also be placed in the slot 113. The positioning block 223 and the bottom surface of the slot 113 are provided with corresponding threaded holes 224. After the buckle structure 220 is installed in the slot 113, the positioning block 223 is placed above the block 221, and the screw is installed in the threaded hole 224. The block 221 can be restricted in the slot 113 by screwing the screw. The displacement of the block 221 in the height direction is limited, and it can only move left and right under the drive of the buckle spring 222.

[0046] Reference Figure 2 In a further embodiment of the present invention, a push block inclined surface 411 is provided on the upper part of the second push rod 410, and the push block inclined surface 411 is inclined downward from the upper part of the second push rod 410. When the upper end of the second push rod 410 rises to the height of the bayonet 204, the block 221 abuts against the push block inclined surface 411, and the second push rod 410 continues to rise, and the push block inclined surface 411 pushes the block 221 out of the bayonet 204 at a stable and uniform speed.

[0047] In order to save installation space for the equipment, refer to Figure 1 In a further embodiment of the present invention, the ejector plate 420 is fixedly connected to the ejector plate 320. When the first ejector cylinder drives the ejector plate 320 to move, the ejector plate 420 moves accordingly, and there is no need to install a second ejector cylinder.

[0048] Since the first ejection mechanism 300 and the second ejection mechanism 400 are ejected successively, in this embodiment, the second ejector rod 410 is shorter than the first ejector rod 310. Figure 2 In the mold closing state shown, the second ejector pin 410 is not in contact with the buckle structure 220, and the clamping block 221 is embedded in the bayonet 204. At this time, the upper end of the first ejector pin 310 has extended to connect with the bottom surface of the cover plate 210; Figure 4 In the mold opening state shown, the upper end of the first ejector rod 310 extends from the first ejection hole 202 to push the cover plate 210 open. At this time, the push block inclined surface 411 on the second ejector rod 410 abuts against the block 221, the spring is compressed, and part of the block 221 is pushed out from the bayonet 204. Figure 5 In the mold opening state shown, the second push rod 410 completely pushes the block 221 out of the bayonet 204, and the second push rod 410 continues to rise and lower to drive the mold strip 200 to rise. As the mold strip 200 is pushed out, the first push rod 310 completely pushes open the cover plate 210.

[0049] Reference Figure 3In some specific embodiments of the present invention, a plurality of first guide posts 150 are connected to the top plate 320. Specifically, a fixed plate 140 is connected above the lower mold frame 130, and a lower mold plate 110 is connected above the fixed plate 140. The lower mold plate 110, the fixed plate 140 and the lower mold frame 130 are fixedly connected by connecting screws 131. The top plate 320 is installed below the fixed plate 140, and the first ejection cylinder drives the top plate 320 to rise and fall relative to the fixed plate 140. The first guide posts 150 are connected between the top plate 320 and the lower mold plate 110. The lower end of the first guide posts 150 is fixedly connected to the top plate 320, and the upper end passes through the fixed plate 140 and the lower mold plate 110. The first ejector rod 310 and the second ejector rod 410 pass through the fixed plate 140 and are slidably connected to the lower mold plate 110.

[0050] A plurality of second guide columns 160 are also connected between the upper template 100 and the lower template 110. A plurality of corresponding guide cylinders 161 are provided on the upper template 100. The lower ends of the second guide columns 160 are fixedly connected to the lower template 110, and the upper ends extend into the guide cylinders 161. The second guide columns 160 can slide relative to the guide cylinders 161 to provide guidance for the movement of the upper template 100.

[0051] The method of using the present invention is as follows: the wire harness is loaded into the wire pressing hole, the mold bar 200 is placed in the lower positioning groove 112, so that one end of the wire harness is clamped by the mold bar 200 and the cover plate 210, and the other end extends into the cavity 111; the lifting cylinder drives the upper mold frame 120 and the upper mold plate 100 to descend, and the upper mold plate 100 and the lower mold plate 110 are molded together for injection molding; after the injection molding is completed, the upper mold plate 100 rises to open the mold, the first ejection cylinder drives the first ejector rod 310 and the second ejector rod 410 to rise, and the first ejector rod 310 pushes the cover plate 210 open; the The first push rod 310 and the second push rod 410 continue to rise, and the push block slope 411 of the second push rod 410 abuts against the block 221. As the second push rod 410 rises, the block 221 gradually escapes from the slot 204; the second push rod 410 abuts against the mold strip 200, and the block 221 completely escapes from the slot 204, and the first push rod 310 completely pushes open the cover plate 210; the second push rod 410 continues to rise and pushes the mold strip 200 out of the lower positioning groove 112. At this time, the wiring harness, product and mold strip 200 can be taken out.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wire harness mold strip opening and closing mechanism, characterized in that include: An upper template (100) and a lower template (110), wherein the upper template (100) is arranged above the lower template (110) and can be lifted and lowered relative to the lower template (110); The mold strip (200) is fixed to the upper surface of the lower mold plate (110) via a snap-fit ​​structure (220); a cover plate (210) is rotatably provided above the mold strip (200); when the cover plate (210) and the mold strip (200) are in contact with each other, a wire pressing hole for the wire harness to pass through can be formed; and the upper mold plate (100) can be lowered to abut against the lower mold plate (110) to press the cover plate (210) and the mold strip (200); A first ejection mechanism (300) is partially movably disposed on the lower mold plate (110), and the top of the first ejection mechanism (300) can rise to pass through the mold strip (200) and push open the cover plate (210); A second ejection mechanism (400) is partially movably disposed on the lower mold plate (110), and the top of the second ejection mechanism (400) can rise to abut against the mold strip (200); when the first ejection mechanism (300) pushes open the cover plate (210), the second ejection mechanism (400) moves to release the fixing of the snap structure (220) to the mold strip (200), and can continue to rise to eject the mold strip (200).

2. A wire harness mold strip opening and closing mechanism according to claim 1, characterized in that: The cover plate (210) is provided with a first wire pressing groove (211), and the mold strip (200) is provided with a second wire pressing groove (201); when the cover plate (210) is rotated to fit with the mold strip (200), the first wire pressing groove (211) and the second wire pressing groove (201) cooperate to form the wire pressing hole.

3. A wire harness mold strip opening and closing mechanism according to claim 2, characterized in that: The lower mold plate (110) is provided with a mold cavity (111) for injection molding, the wire crimping hole is communicated with the mold cavity (111), one end of the wire harness is fixed in the wire crimping hole, and the other end extends into the mold cavity (111), so as to connect the wire harness and the injection molded product during injection molding.

4. A wire harness mold strip opening and closing mechanism according to claim 1, characterized in that: The first ejection mechanism (300) comprises a first ejector rod (310) and an ejector plate (320); the ejector plate (320) is movably arranged below the lower mold plate (110); a first ejection hole (202) is penetrated through the mold bar (200); the lower end of the first ejector rod (310) is fixedly connected to the ejector plate (320), and the upper end extends into the first ejection hole (202) and can be lifted and lowered along the first ejection hole (202); the first ejector rod (310) can rise with the ejector plate (320) to push open the cover plate (210).

5. A wire harness mold strip opening and closing mechanism according to claim 4, characterized in that: A bayonet (204) is provided on the side of the mold strip (200), and a corresponding bayonet groove (113) is provided on the lower mold plate (110); the buckle structure (220) is movably arranged in the bayonet groove (113) and can move along the bayonet groove (113) toward the mold strip (200); the buckle structure (220) can move to partially extend into the bayonet groove (204) to limit the mold strip (200).

6. A wire harness mold strip opening and closing mechanism according to claim 5, characterized in that: The second ejection mechanism (400) comprises a second ejector rod (410) and an ejector plate (420). The ejector plate (420) is movably arranged below the lower mold plate (110) and is provided with a second ejector groove (205) at the bottom of the mold strip (200). The second ejector groove (205) is communicated with the bayonet (204). The lower end of the second ejector rod (410) is fixedly connected to the ejector plate (420), and the upper end extends into the second ejector groove (205) and can be lifted and lowered in the second ejector groove (205). The second ejector rod (410) can rise with the ejector plate (420) until it abuts against the buckle structure (220), and can continue to rise to push the buckle structure (220) out of the bayonet (204).

7. A wire harness mold strip opening and closing mechanism according to claim 6, characterized in that: The snap-fit ​​structure (220) comprises a snap-fit ​​block (221) and a snap-fit ​​spring (222); the snap-fit ​​block (221) is arranged in the snap-fit ​​groove (113); one end of the snap-fit ​​spring (222) is connected to the inner wall of the snap-fit ​​groove (113), and the other end is connected to the snap-fit ​​block (221); the snap-fit ​​block (221) can move along the snap-fit ​​groove (113) so that the snap-fit ​​block (221) is away from one end of the snap-fit ​​spring (222) and is embedded in the snap-fit ​​port (204).

8. A wire harness mold strip opening and closing mechanism according to claim 7, characterized in that: A push block inclined surface (411) is provided on the upper portion of the second push rod (410); when the upper end of the second push rod (410) rises to the height where the bayonet (204) is located, the block (221) abuts against the push block inclined surface (411) to push the block (221) out of the bayonet (204).

9. A wire harness mold strip opening and closing mechanism according to claim 8, characterized in that: The ejection plate (420) is fixedly connected to the top plate (320), and the second ejector rod (410) rises and falls along with the first ejector rod (310). When the first ejector rod (310) pushes the cover plate (210) open, the push block inclined surface (411) abuts against the clamping block (221).

10. A wire harness mold strip opening and closing mechanism according to claim 4, characterized in that: A plurality of first guide columns (150) are connected to the top plate (320), and the upper ends of the first guide columns (150) pass through the lower template (110) to provide a guiding function for the movement of the top plate (320).

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