CN218576883U

CN218576883U - Mould of injection molding

Info

Publication number: CN218576883U
Application number: CN202222968329.XU
Authority: CN
Inventors: 章旭栋; 胡云霄
Original assignee: Ningbo Jingjin Household Products Co ltd
Current assignee: Ningbo Jingjin Household Products Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-07
Anticipated expiration: 2032-11-08

Abstract

The utility model relates to a mould for injection molding, which comprises a feeding plate, a movable module, a fixed module and a bottom plate which are arranged from front to back in sequence, wherein the fixed module is also provided with an ejection mechanism; a movable mold core is embedded in the rear side of the movable module, correspondingly, a fixed mold core is embedded in the front side of the fixed module, the fixed mold core is matched with the movable mold core, and two limiting mechanisms which are symmetrically distributed in the left-right direction and a core pulling mechanism positioned between the two limiting mechanisms are arranged between the movable module and the fixed mold block; the utility model discloses can once only take shape out a plurality of shapes and the all different work pieces of size, these work pieces all are arranged in same complete product moreover, so the manufacture factory just can produce a complete product as long as make a pair injection mold, this expense that has just significantly reduced mould development and preparation to effectual reduction in production cost.

Description

Mould of injection molding

Technical Field

The utility model relates to a mould of injection molding.

Background

With the continuous development of processing technology, injection molding has become a very common production method of products, and is realized by the mutual matching of an injection molding machine and a mold; although the existing injection mold can mold a plurality of workpieces at one time, the workpieces are identical in shape and size, and if a complete product has a plurality of injection molded parts, a manufacturer must make a corresponding number of injection molds, which causes high costs for mold development and manufacture, and further leads to high production costs to be further improved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a plurality of work pieces that belong to same complete product and shape and size inequality can once only be formed out are with the expense of the mould development that has significantly reduced and preparation to effectual reduction in production cost's mould of injection molding.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a mould of an injection molding piece comprises a feeding plate, a movable module, a fixed module and a bottom plate which are sequentially arranged from front to back, wherein the movable module is fixed at the back side of the feeding plate, the fixed module is fixed at the front side of the bottom plate, the back side of the movable module is matched with the front side of the fixed module, and the fixed module is also internally provided with an ejection mechanism; the limiting blocks in the two limiting mechanisms are respectively symmetrically arranged at the left side and the right side of the fixed mold core; the core pulling mechanism comprises two second guide strips which are vertically embedded in the front side of the fixed module and distributed below the fixed mold core in a left-right parallel manner, a core pulling block movably connected between the two second guide strips, a second seat block fixed on the rear side of the movable module, and a second pushing column which is fixed on the second seat block and obliquely inserted in the core pulling block; a horseshoe-shaped sinking cavity is formed in the front side of the fixed mold core, a core pulling groove is formed in the inner wall of the lower side of the horseshoe-shaped sinking cavity, correspondingly, a guide block is formed at the upper end of the core pulling block in the upward direction, and the guide block is movably inserted into the core pulling groove; the fixed module is also provided with two transversely distributed first pressing rods and two transversely distributed second pressing rods in an alternating mode, the first pressing rods are symmetrically arranged on the left side and the right side of the U-shaped sunk cavity respectively, the second pressing rods are symmetrically arranged on the left side and the right side of the U-shaped sunk cavity respectively, and the outer ends of the first pressing rods are detachably fixed on the limiting blocks in the two limiting mechanisms respectively, and the outer ends of the second pressing rods are detachably fixed on the limiting blocks in the two limiting mechanisms respectively, and each of the inner ends of the second pressing rods stretch into the U-shaped sunk cavity.

Preferably, the end of the guide block is upwardly provided with an insert, correspondingly, the inner end of each first pressure lever is outwardly provided with a first pressure head, the inner end of each second pressure lever is outwardly provided with a second pressure head, the first pressure heads on the two first pressure levers are respectively matched with the outer walls of the left side and the right side of the insert, and the second pressure heads on the two second pressure levers are respectively matched with the outer walls of the left side and the right side of the insert.

Preferably, the inner side of the limiting block is provided with transversely distributed T-shaped grooves, and T-shaped blocks are embedded in the T-shaped grooves; the outer end of each first pressure lever and the outer end of each second pressure lever are fixed on a corresponding T-shaped block.

Preferably, first main cavity and first auxiliary cavity have still been seted up to the front side of deciding the mold core, correspondingly, the rear side of moving the mold core is opened and is equipped with the main cavity of second and the vice cavity of second, the main cavity of second and the mutual amalgamation of first main cavity, the vice cavity of second and the mutual amalgamation of first auxiliary cavity.

Preferably, a first step block is further formed outwards on the bottom surface of the first main cavity, and correspondingly, a second step block is further formed outwards on the bottom surface of the second main cavity, and the second step block and the first step block are matched with each other.

Preferably, the rear side of the movable mold core is also provided with a horseshoe-shaped lug outwards, the horseshoe-shaped lug is movably inserted into the horseshoe-shaped sunken cavity, and the end part of the insert is matched with the outer wall of the lower side of the horseshoe-shaped lug.

Compared with the prior art, the utility model has the advantages of: the utility model discloses can once only take shape out a plurality of shapes and the all different work pieces of size, these work pieces all are arranged in same complete product moreover, so the manufacture factory just can produce a complete product as long as make a pair injection mold, this expense that has just significantly reduced mould development and preparation to effectual reduction in production cost.

Drawings

FIG. 1 is a front right side exploded view of the present invention;

FIG. 2 is a right rear side exploded view of the present invention;

fig. 3 is a structural diagram of the limiting mechanism and the core-pulling mechanism of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 to 3, a mold for injection molding comprises a feed plate 1, a movable mold 2, a fixed mold 4 and a bottom plate 5 which are arranged in sequence from front to back, wherein the movable mold 2 is fixed at the rear side of the feed plate 1, the fixed mold 4 is fixed at the front side of the bottom plate 5, the rear side of the movable mold 2 is matched with the front side of the fixed mold 4, and an ejection mechanism 6 is further arranged in the fixed mold 4; a movable mold core 3 is further embedded in the rear side of the movable module 2, correspondingly, a fixed mold core 7 is further embedded in the front side of the fixed mold block 4, the fixed mold core 7 and the movable mold core 3 are matched with each other, two limiting mechanisms 8 which are symmetrically distributed in the left-right direction and a core pulling mechanism 9 which is positioned between the two limiting mechanisms 8 are further arranged between the movable mold block 2 and the fixed mold block 4, each limiting mechanism 8 comprises two first guide strips 81 which are transversely embedded in the front side of the fixed module 4 and are distributed in parallel up and down, a limiting block 82 which is movably connected between the two first guide strips 81, a first seat block 83 which is fixed on the rear side of the movable module 2, and a first push column 84 which is fixed on the first seat block 83 and is obliquely inserted into the limiting block 82; the limiting blocks 82 in the two limiting mechanisms 8 are respectively symmetrically arranged at the left side and the right side of the fixed mold core 7; the core pulling mechanism 9 comprises two second guide bars 91 which are vertically embedded in the front side of the fixed module 4 and distributed below the fixed mold core 7 in a left-right parallel manner, a core pulling block 92 movably connected between the two second guide bars 91, a second seat block 93 fixed on the rear side of the movable module 2, and a second pushing column 94 fixed on the second seat block 93 and obliquely inserted in the core pulling block 92; a horseshoe-shaped sunk cavity 73 is formed in the front side of the fixed mold core 7, a core pulling groove 74 is formed in the inner wall of the lower side of the horseshoe-shaped sunk cavity 73, correspondingly, a guide block 921 is formed upwards at the upper end of the core pulling block 92, and the guide block 921 is movably inserted into the core pulling groove 74; still alternate in the fixed module 4 and be provided with two transversely distributed's first depression bar 85 and two transversely distributed's second depression bar 86, the left and right sides in horseshoe shape heavy chamber 73 is located to two first depression bars 85 symmetry respectively, the left and right sides in horseshoe shape heavy chamber 73 is located to two second depression bars 86 symmetry respectively, the outer end of two first depression bars 85 is detachable respectively and fixes on stopper 82 in two stop gear 8, the outer end of two second depression bars 86 is detachable respectively and fixes on stopper 82 in two stop gear 8, the inner of every second depression bar 86 and the inner of every second depression bar 86 all stretch into in horseshoe shape heavy chamber 73.

The end portion of the guide block 921 is formed with an insert 922, correspondingly, the inner end of each first pressure lever 85 is formed with a first pressure head 851 outwards, the inner end of each second pressure lever 86 is formed with a second pressure head 861 outwards, the first pressure heads 851 on the two first pressure levers 85 are respectively matched with the outer walls of the left side and the right side of the insert 922, and the second pressure heads 861 on the two second pressure levers 86 are respectively matched with the outer walls of the left side and the right side of the insert 922.

The inner side of the limiting block 82 is provided with a T-shaped groove 821 which is transversely distributed, and a T-shaped block 87 is also embedded in the T-shaped groove 821; the outer end of each first pressure lever 85 and the outer end of each second pressure lever 86 are fixed to a corresponding one of the T-shaped blocks 87.

A first main cavity 71 and a first auxiliary cavity 75 are further formed in the front side of the fixed mold core 7, correspondingly, a second main cavity 31 and a second auxiliary cavity 33 are formed in the rear side of the movable mold core 3, the second main cavity 31 and the first main cavity 71 are mutually spliced, and the second auxiliary cavity 33 and the first auxiliary cavity 75 are mutually spliced.

A first step 72 is further formed outwardly on the bottom surface of the first main cavity 71, and correspondingly, a second step 32 is further formed outwardly on the bottom surface of the second main cavity 31, and the second step 32 is matched with the first step 72.

The rear side of the movable mould core 3 is also outwards formed with a horseshoe-shaped lug 34, the horseshoe-shaped lug 34 is movably inserted into the horseshoe-shaped sunken cavity 73, and the end of the insert 922 is matched with the lower outer wall of the horseshoe-shaped lug 34.

The working principle is as follows: installing the mold on an injection molding machine, fixing the feed plate 1 on a moving device of the injection molding machine, fixing the bottom plate 5 on a base of the injection molding machine so as to keep the bottom plate still, driving the movable module 2 to move towards the fixed module 4 by the moving device of the injection molding machine through the feed plate 1 until the rear side of the movable module 2 is attached to the front side of the fixed module 4, splicing the second main cavity 31 and the first main cavity 71 at the moment, splicing the second auxiliary cavity 33 and the first auxiliary cavity 75 at the moment, and inserting the horseshoe-shaped lug 34 into the horseshoe-shaped sunk cavity 73; meanwhile, the moving module 2 will drive the second seat block 93 and the two first seat blocks 83 to move backwards, and the second seat block 93 will force the core pulling block 92 to move upwards between the two second guide bars 91 by means of the second push column 94 until the guide block 921 is inserted into the core pulling groove 74 and the end of the insert 922 is attached to the lower outer wall of the horseshoe-shaped projection 34; the two first seat blocks 83 are moved by a first push column 84 to force each limit block 82 to move between the corresponding two first guide strips 81 toward the fixed mold core 7, so that the two first pressure levers 85 and the two second pressure levers 86 are moved by two T-shaped blocks 87 until the end of each first pressure head 851 and the end of each second pressure head 861 abut against the left or right outer wall of the insert 922.

Then, the molten plastic enters between the movable mold core 3 and the fixed mold core 7 through runners provided in the feed plate 1 and the movable mold block 2, so that the molten plastic is filled between the first main cavity 71 and the second main cavity 31, between the first sub-cavity 75 and the second sub-cavity 33, and between the horseshoe-shaped projection 34 and the horseshoe-shaped sunken cavity 73, thereby respectively molding the main body 10, the insert 11 and the fitting 12 (prior art); after the molding is completed, the moving device of the injection molding machine drives the moving module 2 to leave the fixed module 4, and further drives the second seat block 93 and the two first seat blocks 83 to move forward, so that the core-pulling block 92 is forced to move downward according to the same principle, and simultaneously, each limit block 82 is forced to move towards the direction away from the fixed mold core 7 according to the same principle until the inner end of each second pressing rod 86 and the inner end of each second pressing rod 86 leave the inside of the horseshoe-shaped sinking cavity 73, so that a user can not step on the originally cold foot pad once in cold winter, and finally, the main body piece 10, the insert 11 and the accessory 12 can be ejected forward by the ejection mechanism 6 to leave the fixed module 4.

The utility model discloses can once only the shaping go out a plurality of shapes and the all different work pieces of size, these work pieces all are arranged in same complete product moreover, so the manufacture factory only needs to make a pair injection mold just can produce a complete product, this expense that has just so greatly reduced mould development and preparation to effectual reduction in production cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A mould of an injection molding piece comprises a feeding plate, a movable module, a fixed module and a bottom plate which are sequentially arranged from front to back, wherein the movable module is fixed at the back side of the feeding plate, the fixed module is fixed at the front side of the bottom plate, the back side of the movable module is matched with the front side of the fixed module, and the fixed module is also internally provided with an ejection mechanism; the limiting blocks in the two limiting mechanisms are respectively symmetrically arranged at the left side and the right side of the fixed mold core; the core pulling mechanism comprises two second guide strips which are vertically embedded in the front side of the fixed module and distributed below the fixed mold core in a left-right parallel manner, a core pulling block movably connected between the two second guide strips, a second seat block fixed on the rear side of the movable module, and a second pushing column which is fixed on the second seat block and obliquely inserted in the core pulling block; a horseshoe-shaped sinking cavity is formed in the front side of the fixed mold core, a core pulling groove is formed in the inner wall of the lower side of the horseshoe-shaped sinking cavity, correspondingly, a guide block is formed at the upper end of the core pulling block in the upward direction, and the guide block is movably inserted into the core pulling groove; the fixed module is also provided with two transversely distributed first pressing rods and two transversely distributed second pressing rods in an alternating mode, the first pressing rods are symmetrically arranged on the left side and the right side of the U-shaped sunk cavity respectively, the second pressing rods are symmetrically arranged on the left side and the right side of the U-shaped sunk cavity respectively, and the outer ends of the first pressing rods are detachably fixed on the limiting blocks in the two limiting mechanisms respectively, and the outer ends of the second pressing rods are detachably fixed on the limiting blocks in the two limiting mechanisms respectively, and each of the inner ends of the second pressing rods stretch into the U-shaped sunk cavity.

2. The mold for injection molding of claim 1, wherein the end of the guiding block is formed with an insert upward, correspondingly, the inner end of each first pressing rod is formed with a first pressing head outward, the inner end of each second pressing rod is formed with a second pressing head outward, the first pressing heads of the two first pressing rods are respectively matched with the outer walls of the left and right sides of the insert, and the second pressing heads of the two second pressing rods are respectively matched with the outer walls of the left and right sides of the insert.

3. The mold for the injection-molded part according to claim 2, wherein T-shaped grooves are transversely formed in the inner side of the limiting block, and T-shaped blocks are embedded in the T-shaped grooves; the outer end of each first pressure lever and the outer end of each second pressure lever are fixed on a corresponding T-shaped block.

4. The mold of the injection-molded part according to claim 1, wherein a first main cavity and a first auxiliary cavity are further formed in the front side of the fixed mold core, correspondingly, a second main cavity and a second auxiliary cavity are formed in the rear side of the movable mold core, the second main cavity and the first main cavity are mutually spliced, and the second auxiliary cavity and the first auxiliary cavity are mutually spliced.

5. The mold for injection molding of claim 4, wherein said first main cavity further has a first step outwardly formed on a bottom surface thereof, and correspondingly said second main cavity further has a second step outwardly formed on a bottom surface thereof, said second step being engaged with said first step.

6. A mold for injection molding as claimed in claim 3, wherein said movable mold core is further formed with a horseshoe-shaped projection outwardly at a rear side thereof, said horseshoe-shaped projection being movably inserted into said horseshoe-shaped cavity, and an end of said insert is fitted with a lower outer wall of said horseshoe-shaped projection.