CN216968581U

CN216968581U - Injection mold with anti-collision structure

Info

Publication number: CN216968581U
Application number: CN202123371344.8U
Authority: CN
Inventors: 于阳; 董志平; 付新韦
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-15
Anticipated expiration: 2031-12-29

Abstract

The utility model provides an injection mold with an anti-collision structure. The upper fixed plate is provided with a limiting block along the die assembly direction, the female die plate is movably provided with a stopping structure perpendicular to the die assembly direction, and the male die plate is provided with a shifting block along the die assembly direction. The shifting block and the limiting block are arranged in a staggered mode along the die assembly direction, and the shifting block is used for driving the stop structure to move. When the mold is closed, the injection mold has a first state that the stop structure is abutted against the limiting block and a second state that the stop structure is separated from the limiting block. Through the arrangement of the structure, the utility model ensures that the injection mold has a specific sequence during mold closing, improves the reliability of mold closing action and avoids the occurrence of a mold collision phenomenon.

Description

Injection mold with anti-collision structure

Technical Field

The utility model relates to the technical field of molds, in particular to an injection mold with an anti-collision structure.

Background

When a core-pulling mechanism or a slide block in an injection mold needs a specific action sequence, the core-pulling mechanism or the slide block is usually realized by opening/closing the mold for multiple times. This requires specific structures in the mold to ensure the mold opening/closing sequence. The anti-collision mechanism is a mold structure which ensures a specific mold closing sequence in the mold closing process of the injection mold. Crash features are commonly used in three-plate molds or other molds having multiple mold closing actions.

Conventionally, in order to control the operation sequence of the mold during mold clamping, a spring is usually provided between the platens. However, due to the problems of small selection range and long service life, the reliability of the mold closing action of the mold cannot be completely guaranteed, and the mold collision is easily caused by wrong mold closing action sequence.

Disclosure of Invention

In order to solve the problems, the utility model provides an injection mold with an anti-collision structure, which ensures that the mold can realize a specific mold closing action sequence, improves the reliability of mold closing action and avoids the occurrence of a mold collision phenomenon.

In order to achieve the above object, the present invention provides an injection mold with an impact prevention structure, including: the upper fixing plate is provided with a limiting block along the die assembly direction; the female die plate is arranged below the upper fixing plate, and a stop structure is arranged in the female die plate and is perpendicular to the die assembly direction; the male template is arranged below the female template, a shifting block is arranged on the male template along the die assembly direction, the shifting block and the limiting block are arranged in a staggered mode, and the shifting block is used for driving the stop structure to move when die assembly is carried out; in the die assembly process, the male die plate moves close to the female die plate, the injection die has a first state that the stop structure abuts against the limiting block, and a second state that the stop structure is separated from the limiting block.

Optionally, the female die plate is provided with a fixing structure, and the stop structure is movably arranged in the fixing structure.

Optionally, the fixing structure is provided with a through hole along a mold closing direction, a sliding cavity is arranged in the fixing structure and perpendicular to the mold closing direction, and the stop structure is slidably arranged in the sliding cavity.

Optionally, the stop structure includes: the stop block is arranged in the sliding cavity in a sliding manner; the elastic piece is abutted to the stop block.

Optionally, the side wall of the sliding cavity is provided with a sliding groove, and the stop block is slidably arranged in the sliding groove.

Optionally, the elastic member is a spring, and the spring is fixed in the sliding cavity through a screw plug.

Optionally, at least one spring is provided.

Optionally, the shifting block is provided with a first inclined surface, and the stop block is provided with a second inclined surface; in the mold closing process, the first inclined surface and the second inclined surface are in sliding fit to drive the stop block to compress the elastic piece.

Optionally, the limiting block is fixed to the upper fixing plate through screws and pins.

Optionally, the shifting block is fixed to the male template through screws and pins.

The utility model provides an injection mold with an anti-collision structure, wherein an external mechanical structure is arranged on the injection mold, two templates are forced to be closed firstly through rigid force, and other templates are forced to be closed again. Specifically, a limiting block is arranged on an upper fixing plate of the injection mold along the mold closing direction, a stop structure is arranged on a female mold plate perpendicular to the mold closing direction, and a shifting block is arranged on the male mold plate along the mold closing direction. When the die is closed, the male die plate moves close to the female die plate, and the stop structure is abutted to the limiting block, so that the upper fixing plate cannot be closed with the female die plate due to the limitation of the limiting block. When the male template is close to the female template gradually, the stop structure is separated from the limiting block gradually under the action of the shifting block arranged on the male template. When the male template and the female template are closed, the stop structure is completely separated from the limiting block, at the moment, the limit of the limiting block arranged on the upper fixing plate is released by the stop structure, and the upper fixing plate and the female template start to be closed. According to the injection mold with the anti-collision structure, the specific mold closing action sequence of the mold is guaranteed through the rigid mechanical structure, the reliability of the mold closing action is greatly improved, and the mold collision phenomenon is avoided.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A of the embodiment shown in FIG. 1.

Fig. 3 is a partial cross-sectional view of the embodiment shown in fig. 1.

Fig. 4 is a first clamping process of the present invention.

FIG. 5 is a second clamp process of the present invention.

Fig. 6 is a third mold assembling process of the present invention.

Description of the reference numerals

Reference numerals	Name (R)	Reference numerals	Name (R)
				1	Upper fixing plate	2	Mother template
3	Male template	4	Limiting block
				5	Stop dog	6	Shifting block
7	Spring	8	Screw plug

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In order to ensure that the die can realize a specific die closing action sequence, improve the reliability of the die closing action and avoid the occurrence of a die collision phenomenon. The present invention provides an injection mold with an anti-collision structure, and the following detailed description will be made on specific embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows an embodiment of an injection mold with an anti-collision structure according to the present invention, wherein the injection mold is provided with an upper fixing plate 1, a female mold plate 2, and a male mold plate 3 from top to bottom. When the injection mold is provided with a core-pulling mechanism or a slide block, a specific action sequence is required during operation, and the core-pulling mechanism or the slide block is usually realized by opening and closing the mold for multiple times. The injection mold is provided with a specific anti-collision structure, and the purpose of the utility model is to ensure that the mold has a specific mold closing action sequence.

The anti-collision structure comprises an external mechanical structure arranged on a die. As shown in fig. 1, 2 and 3, in this embodiment, the sequence of mold closing of the injection mold is as follows: the male template 3 and the female template 2 are closed, and then the upper fixing plate 1 and the female template 2 are closed. Specifically, an upper fixing plate 1 is provided with a limiting block 4 along the die assembly direction, a female die plate 2 is movably provided with a stop structure perpendicular to the die assembly direction, and a male die plate 3 is provided with a shifting block 6 along the die assembly direction. Shifting block 6 and limiting block 4 are arranged in a staggered mode in the die closing direction, and the purpose is to ensure that limiting block 4 and shifting block 6 can avoid in the die closing process, so that the die closing action is smoothly completed. When the shifting block 6 is used for closing the mold, the stop structure can be driven to move.

In this embodiment, as shown in fig. 4, 5 and 6, the injection mold has two states when closing the mold, and in the first state, namely when the male mold plate 3 closes the mold with the female mold plate 2, the stop structure and the stop block 4 keep the abutting state, at this time, because the stop structure limits the stop block 4, the upper fixing plate 1 and the female mold plate 2 cannot realize relative approach in distance, namely, the mold closing cannot be realized, and the initial distance before the mold closing is kept between the upper fixing plate 1 and the female mold plate 2 is unchanged. When the male template 3 is close to the female template 2 and moves, the shifting block 6 driven by the male template 3 is close to the female template 2 and moves, and when the shifting block 6 is in contact with the stop structure, the shifting block 6 starts to push the stop structure on the female template 2 to move in the direction of being separated from the abutting connection with the limiting block 4. Under the second state, public template 3 closes diely with female template 2 promptly, backstop structure retreats to break away from and stopper 4 butt. Because the stop structure no longer limits the limit block 4, the upper fixing plate 1 starts to lean against the female die plate 2 until the upper fixing plate 1 and the female die plate 2 are closed, and the whole die closing process is finished.

In some embodiments, the female mold plate 2 is further provided with a fixing structure, the stop structure is movably disposed in the fixing structure, and the fixing structure is configured to accommodate the stop structure and provide a space for the shifting block 6 to drive the stop structure to move.

In this embodiment, as shown in fig. 2 and 3, the fixing structure is fixedly connected to the mother board 2, a through hole is formed in the fixing structure along the mold closing direction, and the shifting block 6 and the limiting block 4 penetrate through the through hole during the mold closing movement. A sliding cavity is arranged in the fixed structure and perpendicular to the die closing direction, and the stop structure is arranged in the sliding cavity and moves in the sliding cavity when the die is closed. It should be emphasized that the fixing structure may be a through hole and a sliding cavity surrounded by a fixing plate in a splicing manner as shown in fig. 2 and 3, or may be an integral structure, and the through hole and the sliding cavity are opened in the fixing block, which is not limited herein.

In some embodiments, the stop structure includes a stop and a resilient member that abuts the stop and provides a pushing force to the stop to keep it abutting the stop block 4 when the mold is closed.

In the present embodiment, as shown in fig. 2 and 3, the stopper structure includes a stopper 5 and a spring 7, and the spring 7 pushes against the stopper 5 to provide pushing force for the stopper 5. In order to limit the stop block 5 and provide a guide for the movement of the stop block, in the embodiment, the side wall of the sliding cavity of the fixing structure is provided with a sliding groove, and the stop block 5 is slidably arranged in the sliding groove. Spring 7 is fixed in fixed knot through plug screw 8 and is constructed's slip intracavity, and plug screw 8 is fixed in slip intracavity wall, spring 7 one end and 8 fixed connection of plug screw, the other end and dog 5 butt to dog 5 provides thrust.

It should be emphasized that, in the present embodiment, in order to provide a stable and uniform pushing force to the stopper 5, the number of the springs 7 is not limited, and one or more springs 7 may be provided.

In the present embodiment, as shown in fig. 2 and 3, in order to realize that the shift block 6 can drive the stopper 5 to move smoothly during mold closing, a first inclined surface is provided on the side of the shift block 6 contacting the stopper 5, and a second inclined surface is provided on the side of the stopper 5 contacting the shift block 6. When the die is closed, the first inclined surface and the second inclined surface are in sliding fit to drive the stop block 5 to compress the spring 7, so that the stop block 5 moves towards the direction of disengaging the limiting block 4.

In this embodiment, the limiting block 4 and the shifting block 6 are fixed on the upper fixing plate 1 and the male template 3 respectively through screws and pins. It should be emphasized that the screw and pin fixation is only one of the fixing manners of the present invention shown in the present embodiment, and other manners that can fix the limit block 4 and the shifting block 6 to the upper fixing plate 1 and the male mold plate 3 respectively also belong to the protection scope of the present invention, and are not limited herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An injection mold with an impact prevention structure, characterized in that, the injection mold with an impact prevention structure includes:

the upper fixing plate is provided with a limiting block along the die assembly direction;

the female die plate is arranged below the upper fixing plate, and a stop structure is movably arranged in the female die plate in a direction perpendicular to the die assembly direction;

the male template is arranged below the female template, a shifting block is arranged on the male template along the mold closing direction, the shifting block and the limiting block are arranged in a staggered mode, and the shifting block is used for driving the stop structure to move when the mold is closed;

in the die assembly process, the male die plate moves close to the female die plate, the injection die has a first state that the stop structure abuts against the limiting block, and a second state that the stop structure is separated from the limiting block.

2. An injection mold with an impact-prevention structure as set forth in claim 1, wherein said female mold plate is provided with a fixing structure, and said stopping structure is movably disposed in said fixing structure.

3. An injection mold with an impact-preventing structure as recited in claim 2, wherein said fixing structure is provided with a through hole along a mold-closing direction, a sliding cavity is provided in said fixing structure perpendicular to the mold-closing direction, and said stopping structure is slidably provided in said sliding cavity.

4. An injection mold having a crash stop as set forth in claim 3 wherein said stop structure comprises:

the stop block is arranged in the sliding cavity in a sliding manner;

the elastic piece is abutted to the stop block.

5. An injection mold with an impact prevention structure as set forth in claim 4, wherein said elastic member is a spring, and said spring is fixed in said slide cavity by a screw plug.

6. An injection mold having a crash structure as set forth in claim 5, wherein at least one of said springs is provided.

7. An injection mold with an impact prevention structure as set forth in claim 4, wherein the side wall of the slide cavity is provided with a slide groove, and the stopper is slidably disposed in the slide groove.

8. An injection mold with an impact prevention structure as set forth in claim 4, wherein said shift block is provided with a first slope, and said stopper is provided with a second slope;

in the die assembly process, the first inclined surface and the second inclined surface are in sliding fit to drive the stop block to compress the elastic piece.

9. The injection mold with an impact prevention structure as claimed in claim 1, wherein the stopper is fixed to the upper fixing plate by a screw and a pin.

10. The injection mold with an impact-preventing structure as claimed in claim 1, wherein the dial block is fixed to the core plate by screws and pins.