CN219311904U

CN219311904U - Shell injection mold convenient to compound die

Info

Publication number: CN219311904U
Application number: CN202320857143.9U
Authority: CN
Inventors: 刘小丰; 刘小龙; 陶桂枝; 彭权; 谢志砚
Original assignee: Dongguan Xinyun Plastic Hardware Products Co ltd
Current assignee: Dongguan Xinyun Plastic Hardware Products Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-07
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a shell injection mold convenient for mold closing, which comprises an upper mold and a lower mold, wherein the upper mold is connected with the lower mold in an opening-closing manner, and the shell injection mold convenient for mold closing further comprises a calibration buffer mechanism; a clamping groove matched with the clamping column is formed in the lower end face of the upper die and close to the outer circumference of the upper die; one end of the clamping column is connected with the upper die in a clamping way through a clamping groove, the other end of the clamping column is fixedly connected with one end of the rubber arc column, and a limiting opening groove matched with the rubber arc column is formed in the lower die. When the upper die and the lower die are clamped, the technical prejudice that the upper die and the lower die are usually aligned up and down in the prior art is overcome, so that the spacing guide structures are formed in the left-right direction of the front face and the rear face and in the front-rear direction of the left face and the right face, and the clearance is calibrated, compensated and positioned, so that the movable die and the fixed die are prevented from being matched to deviate, the precision of the injection die is ensured, and the clamping is facilitated in long-term use.

Description

Shell injection mold convenient to compound die

Technical Field

The utility model relates to the technical field of injection molds, in particular to a shell injection mold convenient to mold.

Background

The production efficiency of plastic workpieces such as shells is greatly improved by the appearance of injection molds.

The structure of injection mold includes last mould and lower mould, and when last mould and lower mould matched with, in order to realize the accurate cooperation of last mould and lower mould, the mode that adopts generally has two kinds.

One is, see patent publication CN209580335U for patent publication "a plastic housing injection mold" (hereinafter referred to as reference 1), in which precise mold clamping is achieved between an upper mold and a lower mold by guide posts and guide holes.

However, in this way, the acting force is usually larger when the upper die and the lower die are clamped, and the clamping and die opening are more frequent, so that the matching between the movable die and the fixed die is easy to deviate in long-time work, thereby affecting the precision of the injection mold and being unfavorable for ensuring the clamping of the upper die and the lower die in the long-time use process.

Another is, referring to "a mold system for facilitating mold closing" (hereinafter referred to as reference 2) disclosed in patent publication V N215512147U, the opposite side walls of the guide chute form inner inclined surfaces; an outer inclined surface is arranged on one side of the first outer die, which is opposite to the second outer die; the outer inclined planes of the first outer die and the second outer die are matched with the inclinations of the two inner inclined planes respectively, namely, the upper die and the lower die are matched through the outer inclined planes and the inner inclined planes.

In this way, as shown in fig. 1 of reference 2, the rigid contact area of the upper die and the lower die is greatly increased, and the abrasion is also faster under frequent large-force opening and closing, and the replacement cost after the abrasion is relatively high.

And, the technical prejudice that exists among the prior art is that the compound die of upper die and lower mould is usually through the mode that aligns from top to bottom and form spacing, in upper die and lower mould complex fore-and-aft and the left and right directions, can not reach better compensation and prevent wearing and tearing and form the result of use in clearance.

Therefore, the technical prejudice is overcome, and the die assembly is facilitated on the premise of ensuring the die assembly precision and the service life of the upper die and the lower die in cooperation, so that the technical problem to be solved by the utility model is solved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

An outer shell injection mold convenient for mold closing comprises an upper mold and a lower mold which are connected in an opening-closing manner,

the shell injection mold convenient for mold closing further comprises a calibration buffer mechanism;

the number of the calibration buffer mechanisms is more than 4;

the more than 4 calibration buffer mechanisms are uniformly distributed on the circumference of the opening and closing positions of the upper die and the lower die;

the calibration buffer mechanism comprises a clamping column, a clamping groove, a rubber arc column and a limit opening groove;

a clamping groove matched with the clamping column is formed in the lower end face of the upper die and close to the outer circumference of the upper die;

one end of the clamping column is connected with the upper die in a clamping way through a clamping groove, the other end of the clamping column is fixedly connected with one end of the rubber arc column, and a limiting opening groove matched with the rubber arc column is formed in the lower die.

Preferably, the axial cross-sectional shape of the clip post is square.

Preferably, the rubber arcuate posts include arcuate inner sides, the arcuate inner sides of the rubber arcuate posts facing outwardly of the upward die.

Preferably, the lower die comprises an upper end face and an outer side face, and the limiting open groove penetrates through the upper end face and the outer side face of the lower die.

Preferably, the clamping posts are made of rubber material.

Preferably, the clamping column and the rubber arc column are of an integrated structure.

Preferably, the end cross-sectional shapes of the upper die and the lower die are respectively square.

Preferably, more than 4 calibration buffer mechanisms are distributed in the middle of each side of the square.

Compared with the prior art, the utility model has the beneficial effects that: when the upper die and the lower die are clamped, the technical prejudice that the upper die and the lower die are usually aligned up and down in the prior art is overcome, and a limit guide structure is formed in the left-right direction of the front face and the rear face and in the front-rear direction of the left face and the right face, so that the clearance is calibrated, compensated and positioned, the offset of the matching between the movable die and the fixed die is avoided, the precision of the injection die is ensured, and the clamping is facilitated in long-term use.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1.

Fig. 3 is a schematic bottom view of fig. 1.

Fig. 4 is a left side schematic view of fig. 3.

Fig. 5 is an enlarged schematic view of a portion a of fig. 2.

Reference numerals and names in the drawings are as follows:

the upper die 1, the lower die 2, the guide post 3, the clamping post 4, the clamping groove 5, the rubber arc-shaped post 6 and the limiting open groove 7.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, in an embodiment of the present utility model, an injection mold for a shell, which is convenient for mold assembly, includes an upper mold 1 and a lower mold 2, where the upper mold 1 and the lower mold 2 are connected in an openable manner, and a manner of matching the upper mold 1 and the lower mold 2 with each other, for example, a manner of matching the upper mold 1 and the lower mold 2 with each other through a guide post 3 and a guide hole matched with the guide post 3, and the lower mold 2 is used as a fixed mold, the upper mold 1 is used as a movable mold, and the upper mold 1 is moved upward to realize a specific structure of opening and closing the upper mold 1 and the lower mold 2, which belongs to a portion that a person skilled in the art can understand as a prior art.

The shell injection mold convenient for mold closing also comprises calibration buffer mechanisms, wherein the number of the calibration buffer mechanisms is more than 4; in the preferred embodiment, according to the characteristic that the end section shapes of the upper die 1 and the lower die 2 are respectively square in the prior art, more than 4 calibration buffer mechanisms are uniformly distributed on the circumference of the opening and closing positions of the upper die 1 and the lower die 2; that is, as shown in fig. 1 to 4, the number of the calibration buffer mechanisms is more than 4, and when the number of the calibration buffer mechanisms is more than 4, the number of the calibration buffer mechanisms is generally multiple of 4, for example, may be 8, in this case, 2 calibration buffer mechanisms are uniformly distributed on each side of the square circumference.

The calibration buffer mechanism comprises a clamping column 4, a clamping groove 5, a rubber arc column 6 and a limit opening groove 7, wherein the clamping groove 5 matched with the clamping column 4 is arranged on the lower end surface of the upper die 1 and near the outer circumference of the upper die 1; one end of the clamping column 4 is connected with the upper die 1 in a clamping way through a clamping groove 5, one end of the clamping column 4 is fixedly connected with one end of a rubber arc column 6, a limit opening groove 7 matched with the rubber arc column 6 is formed in the lower die 2, the shaft section of the clamping column 4 is square, the rubber arc column 6 comprises an arc inner side face, the arc inner side face of the rubber arc column 6 faces the outer part of the upper die 1, namely, the direction from the arc outer surface of the rubber arc column 6 to the arc inner surface faces the outer part of the upper die 1.

Preferably, the lower die 2 comprises an upper end face and an outer side face, the limiting opening groove 7 penetrates through the upper end face and the outer side face of the lower die 2, and the clamping column 4 is made of rubber materials, so that the clamping column 4 and the rubber arc column 6 are of an integrated structure.

Example 1:

when the upper die 1 and the lower die 2 are clamped, as shown in fig. 3, one side part and the other side part of the rubber arc column 6 are in limit fit with the limit opening groove 7, so that the clearance calibration compensation and positioning can be realized in the right-left direction of the front surface of the upper die 1 in fig. 3, the corresponding rubber arc column 6 and the limit opening groove 7 are arranged in the rear surface of the upper die, so that the clearance calibration compensation and positioning can also be realized in the rear surface of the upper die, and the left side surface and the right side surface of the upper die are respectively provided with the rubber arc column 6 and the limit opening groove 7, so that the upper die 1 also realizes the clearance calibration compensation and positioning in the front-rear direction when being matched with the lower die 2 in the downward direction, and meanwhile, the rubber contact of the upper die plays a buffering use effect.

And when the upper die 1 and the lower die 2 are in die closing, the acting force is usually larger, and in the long-time work of frequent die closing and die opening, the correction and compensation clearance is beneficial to avoiding the deviation of the matching between the movable die and the fixed die, ensuring the precision of the injection die and further facilitating the die closing of the upper die 1 and the lower die 2 in the long-time use process.

And under this kind of mode, the rigidity area of contact greatly increased of upper mould 1 and lower mould 2 does not have a large amount of inclined planes in the comparison document 2, avoid wearing and tearing faster condition, simultaneously, rubber arc post 6 is connected with draw-in groove 5 joint through draw-in post 4, after rubber arc post 6 wearing and tearing, cancel the card connect change can, make the change cost reduce after wearing and tearing, and then realize guaranteeing the compound die precision, and under the prerequisite of guarantee upper mould 1 and lower mould 2 cooperation life, more do benefit to the compound die.

Meanwhile, the edge angle at the other end of the rubber arc column 6 is provided with arc transition so that the rubber arc column 6 can be conveniently inserted into the limit open groove 7 when the upper die 1 descends to be matched with the lower die 2, and the rubber arc column belongs to an extension implementation mode known to a person of ordinary skill in the art.

Example 2:

when the upper die 1 and the lower die 2 are clamped, the technical prejudice that the upper die 1 and the lower die 2 are usually aligned up and down in the prior art is overcome, and a limit guide structure is formed in the left-right direction of the front face and the rear face and in the front-rear direction of the left face and the right face, so that the clearance is calibrated, compensated and positioned, the offset of the cooperation between the movable die and the fixed die is avoided, the precision of the injection die is ensured, the use effect of compensating and preventing abrasion to form the clearance is achieved, and the clamping is facilitated in long-term use.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An outer shell injection mold convenient for mold closing comprises an upper mold and a lower mold which are connected in an opening-closing manner, and is characterized in that,

the device also comprises a calibration buffer mechanism;

the number of the calibration buffer mechanisms is more than 4;

2. The mold for injection molding of a mold-closed shell according to claim 1, wherein the axial cross-section of the clamping post is square.

3. The mold for injection molding of a mold-closed shell according to claim 1, wherein the rubber arcuate pillar comprises an arcuate inner surface, the arcuate inner surface of the rubber arcuate pillar facing outwardly of the upper mold.

4. The injection mold for a shell for facilitating mold closing according to claim 1, wherein the lower mold includes an upper end face and an outer side face, and the limit opening groove penetrates through the upper end face and the outer side face of the lower mold.

5. The mold for injection molding a housing for facilitating mold closing as defined in claim 1, wherein the clamping posts are made of rubber material.

6. The mold for injection molding a housing for facilitating mold closing as defined in claim 5, wherein the clamping post and the rubber arcuate post are integrally formed.

7. The mold for injection molding of a mold-closed shell according to claim 1, wherein the end cross-sectional shapes of the upper mold and the lower mold are respectively square.

8. The injection mold for a shell with easy mold closing according to claim 7, wherein more than 4 calibration buffer mechanisms are respectively distributed at the middle part of each side of the square.