1. The utility model provides an injection mold is with split type mold insert which characterized in that includes:

the surface of the insert main body is provided with a clamping groove, and the bottom surface of the clamping groove is provided with a first positioning hole;

the insert split body is detachably arranged in the clamping groove, and a second positioning hole corresponding to the first positioning hole is formed in the insert split body;

one end of the positioning needle upwards penetrates through the first positioning hole and extends into the second positioning hole; and

and the jacking component is arranged at the other end of the positioning needle and is used for enabling one end of the positioning needle to extend into or withdraw from the second positioning hole.

2. The split insert according to claim 1, wherein the clamping grooves are formed in the top surface of the insert body and communicated with the two opposite side surfaces of the insert body, and the clamping grooves are dovetail grooves.

3. The split-type insert according to claim 1, wherein the clamping grooves are T-shaped grooves and are formed in the top surface of the insert body and communicated with the two opposite side surfaces of the insert body.

4. The split insert for injection molds according to claim 1, wherein the lower end of the pilot pin is expanded to form a large head end, the lower end of the first pilot hole is counterbored to form a counter sink,

the locating pin is sleeved with a return spring, the lower end of the return spring is abutted to the large end, and the upper end of the return spring is abutted to the sinking platform.

5. The split insert for an injection mold according to any one of claims 1 to 4, wherein the knock-up assembly comprises a knock-up rod having an inclined surface at one end;

the lower end of the insert main body is provided with a sliding groove communicated with the first positioning hole, and the inclined surface of the jacking rod is upwards arranged in the sliding groove.

6. The split insert for an injection mold according to claim 5, wherein the cross-section of the knock-out bar is polygonal, and the slide groove is engaged with the knock-out bar.

7. The split insert according to claim 5, wherein the insert further comprises a fastening member disposed at the other end of the support rod, and a retraction spring disposed around the fastening member.

Background

The housing of the power adapter is typically formed by injection molding. The common power adapter injection mold comprises an upper mold, a lower mold and an insert arranged between the upper mold and the lower mold. The upper die and the lower die can be commonly used in the production of shells of power adapters with different shapes, the insert must be matched with the shell of the power adapter, if the local characteristics of the shell of the power adapter need to be adjusted, the mold needs to be opened again to manufacture the insert, and the cost is high. Meanwhile, due to the limitation of the size and the structure, the replacement process is complex, and time and labor are wasted.

Disclosure of Invention

The invention aims to provide a split type insert for an injection mold, which is convenient to replace and reduces the overall manufacturing cost of the insert.

The invention discloses a split type insert for an injection mold, which adopts the technical scheme that:

a split type mold insert for an injection mold, comprising: the surface of the insert main body is provided with a clamping groove, the bottom surface of the clamping groove is provided with a first positioning hole, the insert is split and detachably arranged in the clamping groove, and the insert split is provided with a second positioning hole corresponding to the first positioning hole; one end of the positioning needle upwards penetrates through the first positioning hole and extends into the second positioning hole; and the jacking component is arranged at the other end of the positioning needle and is used for enabling one end of the positioning needle to extend into or withdraw from the second positioning hole.

As a preferred scheme, the clamping groove is formed in the top surface of the insert body and communicated with the two opposite side surfaces of the insert body, and the clamping groove is a dovetail groove.

Preferably, the clamping groove is formed in the top surface of the insert body and communicated with two opposite side surfaces of the insert body, and the clamping groove is a T-shaped groove.

As preferred scheme, the expansion of pilot pin lower extreme forms big head end, the reaming of first pilot hole lower extreme forms heavy platform, the cover is equipped with return spring on the pilot pin, return spring lower extreme butt in big head end, return spring upper end butt in heavy platform.

Preferably, the supporting component comprises a supporting rod, and one end of the supporting rod is provided with an inclined surface; the lower end of the insert main body is provided with a sliding groove communicated with the first positioning hole, and the inclined surface of the jacking rod is upwards arranged in the sliding groove.

Preferably, the supporting rod is matched with the sliding groove, and the cross section of the supporting rod is polygonal.

Preferably, the supporting component further comprises a fastening piece arranged at the other end of the supporting rod and a retreating spring sleeved on the fastening piece.

The split type insert for the injection mold disclosed by the invention has the beneficial effects that: the insert is divided into the insert main body and the insert split body, the local feature of the shell of the power adapter, which needs to be replaced, is arranged on the insert split body, only the insert split body needs to be replaced when the shell needs to be replaced, and the manufacturing cost of the insert is reduced. When the split type insert is replaced, the insert is arranged in the clamping groove of the insert main body in a split mode, one end of the positioning needle upwards penetrates through the first positioning hole and extends into the second positioning hole through the jacking assembly, the split type insert is completely limited at the moment, and the mounting and dismounting process is simple and convenient.

Drawings

Fig. 1 is a schematic structural view of a split insert for an injection mold according to the present invention.

Fig. 2 is a sectional view a-a of the split insert for an injection mold of the present invention.

Fig. 3 is a bottom view of the split insert for an injection mold of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the embodiments and drawings of the specification:

referring to fig. 1, a split insert for an injection mold includes an insert body 10, an insert split body 20, a positioning pin 30, and a supporting assembly 40.

Referring to fig. 1 and 2, a clamping groove 11 is formed on a surface of the insert body 10, and a first positioning hole 12 is formed on a bottom surface of the clamping groove 11. The clamping groove 11 is formed in the top surface of the insert body 10 and communicated with two opposite side surfaces of the insert body 10. In this embodiment, the slot 11 is a dovetail slot. In another embodiment, card slot 11 is a T-slot.

The insert split body 20 is detachably arranged in the clamping groove 11, and a second positioning hole 21 corresponding to the first positioning hole 12 is formed in the insert split body 20. Specifically, the shape of the insert split 20 is matched with the clamping groove 11, and the clamping groove 11 is matched with the insert split 20 to position the insert split 20 in the height direction and limit the displacement of the insert split 20 in the height direction.

One end of the positioning pin 30 upwardly passes through the first positioning hole 12 and extends into the second positioning hole 21, so that the positioning pin 30 is positioned in the horizontal direction, and displacement of the insert split body 20 in the horizontal direction is limited.

Referring to fig. 2 and 3, the supporting member 40 is disposed at the other end of the positioning pin 30, and is used for enabling one end of the positioning pin 30 to extend into or withdraw from the second positioning hole 21. The supporting member 40 includes a supporting rod 41, and one end of the supporting rod 41 has an inclined surface 42. The lower end of the insert body 10 is opened with a slide groove 13 communicating with the first positioning hole 12, and the inclined surface 42 of the holding rod 41 is upwardly disposed in the slide groove 13.

During installation, the insert split body 20 is aligned with the clamping groove 11 and then moved into the clamping groove 11 until the second positioning hole 21 on the insert split body 20 is aligned with the first positioning hole 12 on the insert main body 10. And moving the jacking rod 41 along the sliding chute 13 until the inclined surface 42 of the jacking rod 41 contacts the positioning needle 30, continuously moving the jacking rod 41 to enable the inclined surface 42 to push the positioning needle 30 to ascend, enabling the ascending positioning needle 30 to upwards penetrate through the first positioning hole 12 and extend into the second positioning hole 21, and realizing the complete limit of the split insert.

The cross section of the propping rod 41 is polygonal, and the propping rod 41 is matched with the sliding groove 13. The polygonal propping rod 41 and the corresponding sliding slot 13 can be used to limit the rotation of the propping rod 41 and prevent the inclined surface 42 of the propping rod 41 from turning over. The cross-section of the holding rod 41 is preferably rectangular.

In the above scheme, the lower end of the positioning needle 30 is expanded to form the large head end 31, and the lower end of the first positioning hole 12 is reamed to form the sinking platform 121. The positioning needle 30 is sleeved with a return spring 32, the lower end of the return spring 32 abuts against the large end 31, and the upper end of the return spring 32 abuts against the sinking platform 121. When the insert split body 20 needs to be disassembled, the propping rod 41 is reversely moved along the sliding groove 13 until the inclined surface 42 of the propping rod 41 contacts the positioning pin 30, the propping rod 41 is continuously moved, and the positioning pin 30 descends along with the propping rod under the action of the return spring 32 and the self gravity of the positioning pin 30 until the positioning pin is completely separated from the second positioning hole 21.

In the above solution, the supporting assembly 40 further includes a fastening member 43 disposed at the other end of the supporting rod 41 and a retraction spring 44 sleeved on the fastening member 43, and the retraction of the supporting rod 41 is more convenient by the retraction spring 44.

The split type insert for the injection mold is divided into the insert main body 10 and the insert split body 20, the local feature of the shell of the power adapter, which needs to be replaced, is arranged on the insert split body 20, only the insert split body 20 needs to be replaced when the shell needs to be replaced, and the manufacturing cost of the insert is reduced. When the insert is replaced, the insert split 20 is arranged in the clamping groove 11 of the insert main body 10, one end of the positioning pin 30 upwards penetrates through the first positioning hole 12 and extends into the second positioning hole 21 through the jacking assembly 40, the split insert is completely limited at the moment, and the mounting and dismounting process is simple and convenient.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.