CN219768924U - Integrative injection mold is used to wiring joint - Google Patents

Abstract

The utility model relates to an integrated injection mold for a wiring joint, which comprises an upper mold and a lower mold, wherein an upper cavity and a lower cavity are respectively arranged on one surface of the upper mold, which is opposite to the lower mold, annular circulation grooves are formed in the end surfaces of the upper cavity and the lower cavity, the circulation grooves are communicated with the outside through water gaps, a back plate is arranged on one side, which is opposite to the upper mold, of the lower mold, a plurality of through holes are formed in the bottom of the lower cavity, which is opposite to a jack of a workpiece, a spring convex column is arranged in the position, which is opposite to the through holes, of the back plate, and the spring convex column penetrates through the through holes and is inserted into the jack of the workpiece. The spring convex columns additionally arranged on the back plate are utilized to position the workpiece, so that the workpiece is prevented from shifting in the injection molding process, the workpiece is ensured to be fixed at the initial position during injection molding, the injection precision is improved, a plurality of spring convex columns are matched with the insertion holes of the workpiece, the position of the workpiece can be ensured not to be wrong during injection molding, the re-injection molding processing is avoided, and the yield is improved.

Description

Integrative injection mold is used to wiring joint

Technical Field

The utility model relates to the technical field of molds, in particular to an integral injection mold for a wiring joint.

Background

The injection mold is a tool for endowing plastic products with complete structures and precise dimensions, the injection molding is a processing method used for mass production of parts with complex shapes, and specifically, the injection mold is used for injecting heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and cooling and solidifying are carried out to obtain the formed products. At present, the metal workpiece to be injection molded is placed in a mold, and a layer of plastic jacket is injection molded and wrapped on the periphery of the workpiece, so that the functions of insulation, protection and the like are realized. The existing integral injection mold is used for injection molding of round workpieces, such as wiring joints, because no positioning structure exists in the mold, operators often place the positions of the workpieces in a staggered mode, so that the injection molded shell is inconsistent with a technical file, the shell needs to be peeled off again for injection molding, and in the injection molding process, the workpieces without positioning are affected by molten plastics, position deviation occurs, and the yield is reduced.

Disclosure of Invention

In view of the above, it is necessary to provide an integral injection mold for a wire connector.

The utility model provides an integrative injection mold for wiring joint, includes mould and lower mould, the relative one side of mould and lower mould is provided with die cavity and lower die cavity respectively, the terminal surface of last die cavity and lower die cavity all is provided with annular circulation groove, circulation groove passes through mouth of a river and external intercommunication, the lower mould deviates from mould one side is provided with the backplate, lower die cavity bottom is provided with a plurality of through-holes just to the jack position of work piece, the backplate just is provided with the spring projection in the through-hole position, the spring projection runs through the through-hole is pegged graft in the jack of work piece.

Preferably, the spring convex column is movably sleeved with a ring piece for blocking the workpiece jack.

Preferably, a vertical guide column is arranged on the opposite surface of the upper die and the lower die, and the guide column is arranged on the periphery of the circulation groove.

Preferably, one surface of the upper die, which is opposite to the lower die, is also provided with an avoidance column, and the avoidance column is detachably and vertically inserted between the upper cavity and the lower cavity and is positioned at the inner side of the circulation groove.

The upper die and the lower die are respectively and correspondingly provided with an upper supporting plate and a lower supporting plate on one sides, which deviate from each other, of the upper die and the lower die, the upper supporting plate and the lower supporting plate are detachably connected with the upper die and the lower die through bolts, and the backboard is clamped in the middle by the lower supporting plate and the lower die.

The utility model has the advantages that: the spring convex columns additionally arranged on the back plate are utilized to position the workpiece, so that the workpiece is prevented from shifting in the injection molding process, the workpiece is ensured to be fixed at the initial position during injection molding, the injection precision is improved, a plurality of spring convex columns are matched with the insertion holes of the workpiece, the position of the workpiece can be ensured not to be wrong during injection molding, the re-injection molding processing is avoided, and the yield is improved.

Drawings

FIG. 1 is an exploded view of an integral injection mold for a wire connector according to one embodiment;

fig. 2 is an exploded view of an integral injection mold for a wire connector at another view angle.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, an integral injection mold for a wire connection joint comprises an upper mold 1 and a lower mold 2, wherein an upper cavity 11 and a lower cavity 21 are respectively arranged on the opposite surfaces of the upper mold 1 and the lower mold 2, annular circulation grooves 12 are respectively arranged on the end surfaces of the upper cavity 11 and the lower cavity 21, the circulation grooves 12 are communicated with the outside through water gaps 13, a backboard 3 is arranged on one side, which is away from the upper mold 1, of the lower mold 2, a plurality of through holes 211 are arranged on the bottom of the lower cavity 21 and are opposite to the positions of insertion holes of a workpiece 100, spring convex columns 31 are arranged on the positions, opposite to the through holes 211, of the backboard 3, and the spring convex columns 31 penetrate through the through holes 211 and are inserted into the insertion holes of the workpiece 100. Specifically, before injection molding, an operator places the workpiece 100 into the lower cavity 21 of the lower die 2, the workpiece 100 is cylindrical, in order to accurately position the workpiece, and ensure that the position of the workpiece 100 is not deviated when the workpiece 100 is coated, the bottom of the lower die 2 is provided with the back plate 3, the bottom of the lower cavity 21 is provided with the through hole 211, the spring convex column 31 on the back plate 3 penetrates through the through hole 211 and stretches into the lower cavity 21, the workpiece 100 is buckled on the spring convex column 31 corresponding to the spring convex column 31, the assembly and positioning of the workpiece are completed, and then injection molding operation is performed. During injection molding, the upper die 1 and the lower die 2 are clamped, molten plastic enters the circulation groove 12 from the water gap 13 under the action of external pressure, and the workpiece 100 is encapsulated and molded, because the spring convex columns 31 are arranged on the end face of the workpiece 100 and are in separable splicing fit with the workpiece 100, the plastic is convenient to directly take out after injection molding is finished, normal demolding of the workpiece cannot be influenced, and the operation is very convenient.

As shown in fig. 1-2, the spring convex column 31 is movably sleeved with a ring piece 32 for blocking the jack of the workpiece 100. Specifically, during injection molding, the spring convex column 31 is inserted into the insertion hole of the workpiece 100, so as to prevent the molten plastic from inserting into the insertion hole along the gap between the spring convex column 31 and the insertion hole, and the spring convex column 31 is sleeved with the ring piece 32 to block the insertion hole.

As shown in fig. 1 to 2, a vertical guide post 4 is provided on a surface of the upper die 1 facing the lower die 2, and the guide post 4 is provided on the periphery of the circulation groove 12. Specifically, the guide post 4 is arranged, so that the upper die 1 and the lower die 2 can only be closed or separated vertically when being clamped or separated during injection molding, and dislocation can not occur.

As shown in fig. 1-2, a avoidance column 5 is further disposed on the opposite side of the upper die 1 to the lower die 2, and the avoidance column 5 is detachably and vertically inserted between the upper cavity 11 and the lower cavity 21 and is located inside the circulation groove 12. Specifically, the avoidance column 5 is utilized to form a preset hole on the shell formed by injection molding so as to match the technical finished product requirement of the injection molding part.

As shown in fig. 1-2, an upper support plate 6 and a lower support plate 7 are correspondingly arranged on the sides, facing away from each other, of the upper die 1 and the lower die 2, the upper support plate 6 and the lower support plate 7 are detachably connected with the upper die 1 and the lower die 2 through bolts, and the backboard 3 is clamped in the middle by the lower support plate 7 and the lower die 2. Specifically, in the present embodiment, the upper and lower molds 1 and 2 are protected by being mounted on a press of an injection molding machine using the upper and lower support plates 6 and 7.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (5)

1. An integral injection mold for a wiring joint, which is characterized in that: the die comprises an upper die and a lower die, wherein an upper die cavity and a lower die cavity are respectively arranged on the opposite sides of the upper die and the lower die, annular circulation grooves are formed in the end faces of the upper die cavity and the lower die cavity, the circulation grooves are communicated with the outside through water gaps, a backboard is arranged on one side of the lower die, a plurality of through holes are formed in the bottom of the lower die cavity and are opposite to the positions of insertion holes of a workpiece, spring convex columns are arranged on the positions of the backboard and opposite to the positions of the through holes, and penetrate through the through holes and are inserted into insertion holes of the workpiece.

2. An integral injection mold for a wire connector as defined in claim 1, wherein: and the spring convex column is movably sleeved with a ring piece for blocking the workpiece jack.

3. An integral injection mold for a wire connector as defined in claim 1, wherein: and one surface of the upper die, which is opposite to the lower die, is provided with a vertical guide column, and the guide column is arranged at the periphery of the circulation groove.

4. An integral injection mold for a wire connector as claimed in claim 3, wherein: the upper die and the lower die are opposite, and an avoidance column is further arranged on one surface of the upper die, opposite to the lower die, and is detachably and vertically inserted between the upper die cavity and the lower die cavity and positioned on the inner side of the circulation groove.

5. An integral injection mold for a wire connector as defined in claim 1, wherein: the upper die and the lower die are respectively and correspondingly provided with an upper supporting plate and a lower supporting plate on one sides, which deviate from each other, of the upper die and the lower die, the upper supporting plate and the lower supporting plate are detachably connected with the upper die and the lower die through bolts, and the backboard is clamped in the middle by the lower supporting plate and the lower die.