CN210116136U

CN210116136U - Fixed-distance parting device of injection mold

Info

Publication number: CN210116136U
Application number: CN201920970281.1U
Authority: CN
Inventors: 史恩波
Original assignee: Zhejiang Taizhou Meiduo Mould Co Ltd
Current assignee: Zhejiang Taizhou Meiduo Mould Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-02-28
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to an injection mold's distance typing device, including the dog, the dog is fixed on the stripper plate, vertically the system has first slide and second slide in the dog, install the cover half pull rod in the first slide, the cover half pull rod is fixed on the cover half, the system has the spacing groove on the cover half pull rod, the both sides wall of spacing groove is made first slide-in inclined plane and locating surface respectively, the one end of cover half pull rod still system has first guide slide-in inclined plane, install the movable mould pull rod in the second slide, the movable mould pull rod is fixed on the movable mould through its afterbody, the middle part system of movable mould pull rod has the slip recess, the head system of movable mould pull rod has the guide block, the upper and lower part system of guide block side has second slide-in inclined plane and roll-off inclined plane respectively. Compared with the prior art, the utility model is suitable for a complicated large-scale injection mold realizes that the mould is according to certain order and apart from the die sinking, simple structure, easy maintenance.

Description

Fixed-distance parting device of injection mold

Technical Field

The utility model relates to an injection mold's distance parting device belongs to injection mold technical field.

Background

In the dual parting surface injection mold, a fixed distance parting device is needed to move the mold according to a certain sequence and distance when the mold is opened, thereby completing parting action. The distance parting device in the prior art comprises a spring screw type, a guide pillar spring type, a swing hook type, a sliding plate type and the like. However, with the progress of the mold design technology, the above distance parting devices all gradually expose the defects, and are no longer suitable for some complicated large injection molds.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of prior art, provide an injection mold's distance parting device.

For realizing the purpose the utility model adopts the technical proposal that:

the fixed-distance parting device of the injection mold comprises a stop block, wherein the stop block is fixed on a stripper plate, a first slideway and a second slideway are longitudinally formed in the stop block, a fixed mold pull rod is installed in the first slideway, the fixed mold pull rod is fixed on a fixed mold, a limit groove is formed in the fixed mold pull rod, two side walls of the limit groove are respectively formed into a first slide-in inclined surface and a positioning surface, and a first guide slide-in inclined surface is further formed at one end of the fixed mold pull rod;

the movable die pull rod is installed in the second slide way, the movable die pull rod is fixed on the movable die base plate through the tail portion of the movable die pull rod, a sliding groove is formed in the middle of the movable die pull rod, a guide slide block is arranged at the head portion of the movable die pull rod, and a second sliding-in inclined surface and a second sliding-out inclined surface are formed in the upper portion and the lower portion of one side face of the guide slide block respectively.

As a further optimization of the above technical solution: still transversely there is the mounting groove in the stopper, the mounting groove intercommunication first slide with the second slide, install the spring in the mounting groove, the one end of spring is fixed mounting groove tank bottom, the other end are connected with the stopper, the system has the third slide in the stopper, system on the third slide have with it leads the slide-out inclined plane and leads the slide-in inclined plane with the second to lead the slider complex, during the compound die the slip recess is located in the third slide, the head of stopper is located the spacing inslot, the head both sides system of stopper has the third respectively to lead and slides-in inclined plane and locking surface.

Compared with the prior art, the utility model is suitable for a complicated large-scale injection mold realizes that the mould is according to certain order and apart from the die sinking, simple structure, easy maintenance.

Drawings

Fig. 1 is a schematic structural view of an injection mold when a core-pulling ejection mechanism of the present invention is closed.

Fig. 2 is a schematic sectional structure of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-3, the utility model discloses an injection mold's ejection mechanism of loosing core, including movable mould and cover half, the cover half includes cover half bedplate 10 and cover half insert 7, the movable mould includes movable mould bedplate 2, be fixed with the movable mould on the movable mould bedplate 2 and insert 4, still install stripper plate 3 on the movable mould bedplate 2, install slider 5 on the stripper plate 3, the movable mould is inserted 4 and is passed stripper plate 3, and with slider 5, cover half insert 7 and constitute die cavity 6 jointly, the back of finishing of moulding plastics, the product back-off is located in slider 5. And a distance parting device is also arranged on the mould. The distance parting device ensures that all parting surfaces of the die are opened in a certain sequence.

In the above technical scheme: as shown in fig. 2, the distance parting device includes a stopper 11, the stopper 11 is fixed on the stripper plate 3, a first slide 111 and a second slide 112 are vertically made in the stopper 11, a fixed die pull rod 12 is installed in the first slide 111, the fixed die pull rod 12 is fixed on the fixed die, a limiting groove 121 is made on the fixed die pull rod 12, two side walls of the limiting groove 121 are respectively made into a first slide-in inclined surface 1211 and a positioning surface 1212, and a first guide slide-in inclined surface 122 is further made at one end of the fixed die pull rod 12.

In the above technical scheme: a movable mold pull rod 13 is installed in the second slide rail 112, the movable mold pull rod 13 is fixed on the movable mold base plate 2 through the tail of the movable mold pull rod 13, a sliding groove 131 is formed in the middle of the movable mold pull rod 13, a guide slide block 132 is formed at the head of the movable mold pull rod 13, and a second slide-in inclined surface 1321 and a second slide-out inclined surface 1322 are respectively formed at the upper part and the lower part of one side surface of the guide slide block 132.

In the above technical scheme: still transversely there is mounting groove 113 in the dog 11, mounting groove 113 intercommunication first slide 111 with second slide 112, install spring 14 in the mounting groove 113, the one end of spring 14 is fixed 113 tank bottoms of mounting groove, the other end are connected with stopper 15, system has third slide 151 in the stopper 15, system on the third slide 151 with lead slider 132 complex to lead and slide out inclined plane 1511 and second and lead and slide into inclined plane 1512, during the compound die slide groove 131 is located in the third slide 151, the head of stopper 15 is located in spacing groove 121, stopper 15's head both sides system has the third respectively and leads and slide into inclined plane 152 and locking surface. The positioning surface 1212 is matched with the locking surface to cause the fixed die pull rod 12 to be clamped by the limiting block 15, and a certain locking effect is exerted on the parting surface between the movable die and the fixed die, so that the stripper plate 3 and the movable die base plate 2 are firstly parted.

In the above technical scheme: the movable mold base plate 2 is internally provided with a limiting hole 21, the limiting hole 21 is composed of a large hole and a small hole, the small hole is positioned at the upper part of the large hole, a step 211 is formed between the large hole and the small hole, a limiting screw 1 is arranged in the limiting hole 21, a cap head 101 of the limiting screw 1 is positioned in the large hole, and a rod part 102 of the limiting screw 1 penetrates through the small hole and is fixed at the bottom of the ejector plate 3. When the stripper plate 3 performs the ejection movement, the cap head 101 moves to touch the step 211 to be limited, so as to limit the ejection distance of the stripper plate 3.

In the above technical scheme: the fixed die further comprises a splitter plate 9 and two sets of hot runner systems 8, the two sets of the hot runner systems 5 and the die cavity 6 are arranged, the hot runner systems 8 penetrate through the fixed die insert 7 to be directly contacted with the die cavity 6, and molten plastic is split by the splitter plate 9 and then enters the respective die cavity 6 through the hot runner systems 8. Two products can be completed in one injection molding cycle, and the production efficiency is greatly improved. The utility model discloses a hot runner system avoids defects such as the material that appears after the product is pruned to scar, flow mark to influence product property ability.

In the above technical scheme: as shown in FIG. 3, the surface of the fixed die insert 7 is formed with a die pattern 71. The mold pattern 71 is a single inlay and is convenient to process.

The working process of the utility model is as follows, the mold closing of the injection molding machine is finished, the molten plastic enters the mold cavity 6 through the hot runner system 8, after the product is formed, because the cover half pull rod 12 is clamped by the limiting block 15 to play a certain locking role on the parting surface between the movable cover half, the first parting is firstly carried out between the stripper plate 3 and the movable mold seat plate 2, the movable mold seat plate 2 drives the movable mold insert 4 to move downwards, because the back-off at the two ends of the product is positioned in the sliding block 5, the product is still fixed when the movable mold insert 4 moves downwards, and the partial separation of the product and the movable mold insert 4 is realized; in the process, the movable mold pull rod 13 is also driven by the movable mold seat plate 2 to move downwards, the movable mold pull rod moves downwards for a certain distance and then slides out of the inclined plane 1322 to be contacted with the guide sliding-out inclined plane 1511, so that the guide slide block 132 slides into the third slide channel 151, at the moment, the limiting block 15 is driven to move leftwards integrally, the spring 14 is compressed, the head of the limiting block 15 is separated from the limiting groove 121, the fixed mold pull rod 12 is unlocked and driven by the mold opening force to move upwards to be separated from the first slide channel 111, the mold is subjected to secondary parting, the movable mold starts to separate, the movable mold seat plate 2 drives the ejector plate 3, the slide block 5 and the product to move downwards, meanwhile, the; and finally, the oil cylinder of the injection molding machine drives the stripper plate 3 to perform ejection movement, so that the product is completely separated from the movable die insert 4, the cap head 101 of the limit screw 1 is in contact with the step 211 to limit the ejection distance of the stripper plate 3, and finally, the manipulator finishes workpiece taking.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.

Claims

1. The fixed-distance parting device of the injection mold is characterized by comprising a stop block (11), wherein the stop block (11) is fixed on a stripper plate (3), a first slide way (111) and a second slide way (112) are longitudinally formed in the stop block (11), a fixed mold pull rod (12) is installed in the first slide way (111), the fixed mold pull rod (12) is fixed on a fixed mold, a limit groove (121) is formed in the fixed mold pull rod (12), two side walls of the limit groove (121) are respectively formed into a first slide-in inclined surface (1211) and a positioning surface (1212), and a first guide slide-in inclined surface (122) is further formed at one end of the fixed mold pull rod (12);

a movable die pull rod (13) is installed in the second slide way (112), the movable die pull rod (13) is fixed to the movable die base plate (2) through the tail portion of the movable die pull rod, a sliding groove (131) is formed in the middle of the movable die pull rod (13), a guide sliding block (132) is formed at the head portion of the movable die pull rod (13), and a second sliding-in inclined plane (1321) and a sliding-out inclined plane (1322) are formed in the upper portion and the lower portion of one side face of the guide sliding block (132) respectively.

2. Distance parting device for an injection mold according to claim 1, characterized in that a mounting groove (113) is also transversely made in said stop (11), the mounting groove (113) is communicated with the first slideway (111) and the second slideway (112), a spring (14) is arranged in the mounting groove (113), one end of the spring (14) is fixed at the bottom of the mounting groove (113), the other end is connected with a limit block (15), a third slideway (151) is arranged in the limiting block (15), a guide slide-out inclined surface (1511) and a second guide slide-in inclined surface (1512) which are matched with the guide sliding block (132) are arranged on the third slideway (151), the sliding groove (131) is positioned in the third slideway (151) during die assembly, the head of the limiting block (15) is located in the limiting groove (121), and a third guide sliding-in inclined plane (152) and a locking surface are respectively arranged on two sides of the head of the limiting block (15).