CN212072752U

CN212072752U - A high-efficient injection mold for plastic

Info

Publication number: CN212072752U
Application number: CN202020106476.4U
Authority: CN
Inventors: 薛亚维
Original assignee: Suzhou Jiuyue Industrial Technology Co ltd
Current assignee: Suzhou Jiuyue Industrial Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-12-04
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a high-efficiency injection mold for plastic, which comprises an upper mold, a central mold and a lower mold, wherein the upper mold comprises an upper mold body, a limiting hole and an anti-skid groove, the central mold comprises an inner contour lug, a connecting rod and an injection hole, the lower mold comprises a lower mold body, a limiting rod and a central mold matching groove, the side wall of the lower mold body is matched with the upper mold body, the limiting rod is arranged at the position corresponding to the limiting hole on the upper mold body, and the central mold matching groove is arranged at the position corresponding to the outer contour groove, thereby not only facilitating the production and processing of workers, but also improving the production efficiency of the bottle cap.

Description

A high-efficient injection mold for plastic

Technical Field

The utility model relates to the technical field of mold, specifically a high-efficient injection mold for plastic.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic which is melted by heating is injected into the mold cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification, but the mold in the prior art has low efficiency when producing the plastic bottle cap, and can not quickly produce the qualified plastic bottle cap.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient injection mold for plastic to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-efficiency injection mold for plastic comprises an upper mold, a central mold and a lower mold, wherein the upper mold comprises an upper mold body, an outer contour groove, a limiting hole and an anti-skid groove, the upper mold body is rectangular and is in circular arc transition, the outer contour groove is arranged at the central position of the lower end face of the upper mold body, the limiting hole is arranged on the upper mold body, the central mold comprises an inner contour lug, a thread lug, a connecting rod and an injection molding hole, the inner contour lug is arranged on a bottom limiting block in a cylindrical manner, the thread lug with the same thread on a bottle body is arranged on the inner contour lug, the connecting rod is arranged on the lower end face of the bottom limiting block, the injection molding hole penetrates through the whole central mold, the lower mold comprises a lower mold body, a limiting rod and a central mold matching groove, the side wall of the lower mold body is matched with the upper, the limiting rod is arranged at the position corresponding to the limiting hole on the upper die body, the central die matching groove is arranged at the position corresponding to the outer contour groove, and the central die is in sliding connection with the lower die body through the central die matching groove.

As a further aspect of the present invention: and the bottom surface and the side wall of the outer contour groove are in circular arc transition.

As a further aspect of the present invention: the number of the limiting holes is four, and the limiting holes are symmetrically arranged on the upper die body.

As a further aspect of the present invention: the outer contour groove, the inner contour convex block and the central die matching groove are coaxially arranged.

As a further aspect of the present invention: the sectional area of the bottom limiting block is larger than that of the outer contour groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up central mould into can this internal reciprocating of bed die realizes faster carrying out injection moulding to the bottle lid, can accomplish the back at the shaping simultaneously, go up the bed die after-separating central mould moves down to the staff can be very convenient take off the bottle lid after injection moulding from central mould, thereby not only made things convenient for staff's production and processing, still improved the production efficiency of bottle lid simultaneously.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an efficient injection mold for plastics.

FIG. 2 is a cross-sectional view of a high efficiency injection mold for plastic.

FIG. 3 is an enlarged view of a portion of the efficient injection mold for plastic at A in FIG. 2.

In the figure: 10. an upper die; 20. a central mold; 30. a lower die; 11. an upper die body; 12. an outer contour groove; 13. A limiting hole; 14. an anti-slip groove; 21. an inner contour bump; 22. a threaded projection; 23. a connecting rod; 24. injection molding holes; 25. A bottom limiting block; 31. a limiting rod; 32. a lower die body; 33. the central mold engages the slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the term "center". The directional or positional relationships "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like are indicative of the directional or positional relationships illustrated in fig. 2, merely to facilitate description and to simplify description, and are not indicative or implied that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Example 1

Referring to fig. 1-3, an efficient injection mold for plastic includes an upper mold 10, a central mold 20, and a lower mold 30, where the upper mold 10 includes an upper mold body 11, an outer contour groove 12, and a limiting hole 13, the upper mold body 11 is rectangular and transits around through an arc, the outer contour groove 12 is disposed at a center of a lower end surface of the upper mold body 11, the outer contour groove 12 is used to shape the overall appearance of a bottle cap, and the upper mold body 11 is provided with the limiting hole 13 for limiting a position of the upper mold body 11 between the lower molds 30.

The central mold 20 comprises an inner contour convex block 21, a thread convex block 22, a connecting rod 23 and an injection molding hole 24, wherein the inner contour convex block 21 is arranged on a bottom limiting block 25 in a cylindrical mode, the inner contour convex block 21 is used for shaping the shape of the inner side of the bottle cap, the bottom limiting block 25 is used for limiting the height of the molded bottle cap, furthermore, the thread convex block 22 with the same thread on the bottle body is arranged on the inner contour convex block 21 and used for forming the thread matched with the bottle body in the bottle cap, the connecting rod 23 is arranged on the lower end face of the bottom limiting block 25, the injection molding hole 24 penetrates through the whole central mold 20, materials in a melting state enter the mold through the injection molding hole 24, and injection molding operation is completed.

The lower die 30 includes a lower die body 32, a limiting rod 31 and a central die matching groove 33, the side wall of the lower die body 32 is matched with the upper die body 11, the limiting rod 31 is arranged at a position corresponding to the limiting hole 13 on the upper die body 11, the positioning between the upper die 10 and the lower die 30 is completed by the matching between the limiting rod 31 and the limiting hole 13 on the upper die body 11, the central die matching groove 33 is arranged at a position corresponding to the outer contour groove 12, and the central die 20 is slidably connected between the lower die body 32 through the central die matching groove 33, so that the central die 20 can move in the central die matching groove 33 in the up-and-down direction.

As a further aspect of this embodiment: the outer contour groove 12, the inner contour protrusion 21 and the central mold mating groove 33 are coaxially arranged.

As a further aspect of this embodiment: the sectional area of the bottom limiting block 25 is larger than that of the outer contour groove 12, so that the outer contour groove 12 can be closed, and the injection molding can be smoothly carried out.

Example 2

This embodiment is further defined and improved by the embodiment 1 based on the embodiment 1, and an efficient injection mold for plastics comprises all the technical features of the embodiment 1, and in addition,

as a further aspect of this embodiment: the bottom surface and the side wall of the outer contour groove 12 are in arc transition, so that the molded bottle cap is more attractive, and the demolding process of the mold is facilitated.

As a further aspect of this embodiment: the number of the limiting holes 13 is four, and the limiting holes are symmetrically arranged on the upper die body 11.

As a further aspect of this embodiment: and a plurality of anti-slip grooves 14 are circumferentially arranged on the side wall of the outer contour groove 12 and are used for forming anti-slip stripes on the produced bottle cap.

The utility model discloses a theory of operation is:

the utility model discloses during operation, the injection molding machine will go up mould 10, bed die 30 and central mould 20 and extrude together, and its inside profile that needs the shaping bottle lid that forms, material under the molten condition later gets into from the hole 24 of moulding plastics along connecting rod 23, fills the cavity that is formed by bed die 10 and central mould 20 afterwards, after the material cooling of cavity gets down go up mould 10 and bed die 30 separation to bottle lid after the shaping still stays under the effect of screw thread central mould 20 is last, and later the staff can be very convenient follow the bottle lid after the shaping is twisted off on the central mould 20, has improved production efficiency greatly. Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The efficient injection mold for the plastic comprises an upper mold (10), a central mold (20) and a lower mold (30), and is characterized in that the upper mold (10) comprises an upper mold body (11), an outer contour groove (12) and a limiting hole (13), the upper mold body (11) is rectangular and is in circular arc transition around, the outer contour groove (12) is arranged at the central position of the lower end face of the upper mold body (11), the limiting hole (13) is arranged on the upper mold body (11), the central mold (20) comprises an inner contour convex block (21), a thread convex block (22), a connecting rod (23) and an injection molding hole (24), the inner contour convex block (21) is arranged on a bottom limiting block (25) in a cylindrical manner, the thread convex block (22) with the same thread on a bottle body is arranged on the inner contour convex block (21), and the connecting rod (23) is arranged on the lower end face of the bottom limiting block (25), injection molding hole (24) link up whole central mould (20), bed die (30) include bed die body (32), gag lever post (31) and central mould cooperation groove (33), bed die body (32) lateral wall with cooperate between bed die body (11), it is provided with gag lever post (31) to go up spacing hole (13) corresponding position on with bed die body (11), lie in outline groove (12) correspond the position and are provided with central mould cooperation groove (33), central mould (20) pass through between bed die body (32) central mould cooperation groove (33) realize sliding connection.

2. The efficient plastic injection mold as claimed in claim 1, wherein the bottom surface and the side wall of the outer contour groove (12) are in circular arc transition.

3. The efficient plastic injection mold as claimed in claim 1, wherein the outer contour groove (12) has a plurality of anti-slip grooves (14) arranged on the side wall along the circumferential direction.

4. The efficient injection mold for plastic cement as claimed in claim 2 or 3, wherein the number of the limiting holes (13) is four, and the limiting holes are symmetrically arranged on the upper mold body (11).

5. The high efficiency injection mold for plastic of claim 4, wherein the outer contour groove (12), the inner contour protrusion (21) and the central mold mating groove (33) are coaxially arranged.

6. The efficient injection mold for plastics according to claim 4, wherein the cross-sectional area of the bottom stopper (25) is larger than the cross-sectional area of the outer contour groove (12).