CN213227376U

CN213227376U - Die capable of realizing thread removing action

Info

Publication number: CN213227376U
Application number: CN202021299206.6U
Authority: CN
Inventors: 杨永平; 王宝绿
Original assignee: DALIAN HAOLIN PRECISION MOLD CO LTD
Current assignee: DALIAN HAOLIN PRECISION MOLD CO LTD
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-05-18
Anticipated expiration: 2030-07-06

Abstract

A die capable of realizing the action of thread removal comprises a fixed die part and a movable die part which are matched, wherein the fixed die part comprises a fixed die attachment plate, a material removal plate is arranged below the fixed die attachment plate, a fixed die base plate is arranged below the material removal plate, elastic glue is arranged between the material removal plate and the fixed die base plate, a fixed die plate, an outer core plate and a push plate are sequentially arranged below the fixed die base plate, the movable die part comprises a movable die attachment plate, a movable die plate is arranged above the movable die attachment plate, the fixed die plate, the outer core plate, the push plate and the side surface of the movable die plate are jointly connected with an outer pull plate, an inclined guide pillar and a slide block which is in sliding connection with the inclined guide pillar are arranged in the movable die plate, a guide hole which is matched with the inclined guide pillar is arranged on the slide block, the end part of the slide block is connected with a side extraction insert, and the side extraction insert forms the, the movable mould core forming the bottom surface part of the cavity is also arranged on the movable mould plate.

Description

Die capable of realizing thread removing action

Technical Field

The utility model relates to an injection mold, especially a can realize taking off mould of screw thread action.

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. Injecting the heated and melted plastic into a cavity of an injection mold at high pressure by an injection molding machine, and cooling and solidifying to obtain the required product. When an injection mold is used for preparing a workpiece with an internal thread (such as a bottle cap), if the number of thread buttons of the workpiece is small or the material of the workpiece is relatively soft, demolding can be realized in a forced demolding manner, but if the number of thread buttons is relatively large or the material of the workpiece is relatively hard, the workpiece can be damaged if demolding is still performed in a forced demolding manner. Particularly, for some special products (such as medicine bottle caps, cosmetic bottle caps, etc.), a layer of shell is provided outside the internal threads, and if the injection molding mode is used for producing the products, the production can be realized only by a very complicated mold structure, the cost is greatly increased, and the working efficiency is relatively low. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, can rotate the mould that can take off the screw action in realization of drawing of patterns on one side.

The technical solution of the utility model is that: the utility model provides a can realize mould of taking off screw thread action, includes matched cover half and movable mould part, its characterized in that: the fixed die part comprises a fixed die attachment plate 1, a stripper plate 2 is arranged below the fixed die attachment plate 1, an inner pull rod assembly 22 is arranged between the fixed die attachment plate 1 and the stripper plate 2, a fixed die base plate 3 is arranged below the stripper plate 2, elastic glue 23 is arranged between the stripper plate 2 and the fixed die base plate 3, a fixed die plate 4, an outer core plate 5 and a push plate 6 are sequentially arranged below the fixed die base plate 3, the movable die part comprises a movable die attachment plate 8, a movable die plate 7 is arranged above the movable die attachment plate 8, the push plate 6 and the side surface of the movable die plate 7 are jointly connected with an outer pull plate 19, an inclined guide pillar 17 and a slide block 16 which is in sliding connection with the inclined guide pillar 17 are arranged in the movable die plate 7, the slide block 16 is in sliding connection with the push plate 6, a guide hole which is matched with the inclined guide pillar 17 is arranged on the slide block 16, and the end part of the slide block 16 is connected with a, the side drawing insert 24 forms the side part of the cavity, the movable mould core 18 forming the bottom part of the cavity is arranged on the movable mould plate 7,

an inner core 11 is arranged in the fixed die plate 4, a material channel which is directly communicated with the die cavity is arranged in the middle of the inner core 11, a threaded core 12 is rotatably sleeved outside the inner core 11, the top of the threaded core 12 is connected with a gear 15 which is rotatably supported in the fixed die plate 4, the gear 15 is meshed with a driving tooth which is positioned on the working end of a driving motor, an outer core 13 is also arranged at the bottom of the outer core plate 5, a spiral groove is arranged at the bottom end of the threaded core 12, a protruding part 25 is arranged at the bottom end of the outer core 13, and the spiral groove and the protruding part 25 jointly form the top surface part of the die cavity,

elastic glue 23 is arranged between the fixed template 4 and the outer core plate 5, a mould locker 20 is arranged on the side surfaces of the outer core plate 5 and the push plate 6, a limit pull rod 21 is also arranged between the fixed template 4 and the outer core plate 5,

the bottom end face of the push plate 6 is also provided with a push core 14, and the bottom edge of the push core 14 is matched with the top edge of the cavity.

Compared with the prior art, the utility model, have following advantage:

the mold with the structure form and capable of achieving the thread removing action is simple in structure, ingenious in design and reasonable in layout, and a special mold structure is designed according to the actual situation that a product with an internal thread is difficult to demould. The gear is utilized to drive a thread core to rotate, the thread core is provided with a spiral groove matched with the inner thread of a product, when the thread core rotates, the thread-removing action of a workpiece can be realized by matching with the die-opening action of a template, and meanwhile, the side core-pulling and die-releasing ejection actions of a cavity can be realized. And the manufacturing process of the die is simple, the manufacturing cost is low, so that the die has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

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

Fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 and 2: a die capable of realizing the action of thread removal comprises a fixed die part and a movable die part which are matched, wherein the fixed die part comprises a fixed die attachment plate 1, a material removal plate 2 is arranged below the fixed die attachment plate 1, an inner pull rod assembly 22 is arranged between the fixed die attachment plate 1 and the material removal plate 2, a fixed die base plate 3 is arranged below the material removal plate 2, elastic glue 23 is arranged between the material removal plate 2 and the fixed die base plate 3, a fixed die plate 4, an outer core plate 5 and a push plate 6 are sequentially arranged below the fixed die base plate 3, the movable die part comprises a movable die attachment plate 8, a movable die plate 7 is arranged above the movable die attachment plate 8, the push plate 6 and the side surface of the movable die plate 7 are jointly connected with an outer pull plate 19, an inclined guide pillar 17 and a slide block 16 which is connected with the inclined guide pillar are arranged in the movable die plate 7, the slide block 16 is connected in the push plate 6 in a sliding manner, and a guide hole which is matched with the inclined, the end of the slide block 16 is connected with a side extraction insert 24, the side extraction insert 24 forms the side part of the cavity, a movable mould core 18 forming the bottom part of the cavity is arranged on the movable mould plate 7,

The utility model discloses can realize taking off the working process of the mould of screw thread action as follows: after the die is closed, all the side insert blocks 24 form the side parts of a die cavity, the movable die core 18 forms the bottom part of the die cavity, the thread groove at the bottom end of the thread core 12 and the protrusion part 25 at the bottom end of the outer core 13 jointly form the top part of the die cavity, a forming machine fills materials in a molten state into the die cavity through a material channel formed in the center of the inner core 11, and the materials are cooled to form a product with internal threads;

when the mold is opened, firstly the PL2 is opened, the sprue section in the material channel is disconnected and separated from the product in the cavity, and the mold opening distance is controlled by the inner pull rod assembly 22;

the movable mould part integrally retreats, the PL5 position is opened, the inclined guide post 17 drives the slide block 16 to move towards the direction far away from the cavity in the push plate 6, and then the side core-pulling block 24 is driven to be pulled out, and the side core-pulling action is completed; the product is simultaneously released from the moving core 18, during which the opening distance between the push plate 6 and the moving platen 7 is defined by the outer pulling plate 19;

after the mold opening action of PL5 is finished, the driving motor drives the driving tooth to rotate, and then the driving gear 15 rotates, and finally the uniform rotation of the threaded core 12 is realized; meanwhile, the inner core 11 can move axially relative to the product along with the action of opening the die, so that the complex shape in the middle of the product is kept consistent with the periphery of the product; meanwhile, because the elastic glue 23 is arranged at the PL3 position, the fixed die plate 4 and the outer core plate 5 are separated under the action of the elastic glue, namely the threaded core 12 retreats while rotating relative to the product, and finally the purpose that the product is pulled out from the bottom of the threaded core 12 is achieved; the distance between the fixed die plate 4 and the outer core plate 5 is limited by a limit pull rod 21; it should be noted that, in the above process, the outer core 13 is provided with the anti-rotation rib matched with the outer side of the product, and when the threaded core 12 rotates under the action of the anti-rotation rib, the product cannot rotate along with the rotation, so that the purpose of automatic thread removal can be realized;

the mold is opened continuously, after the limit pull rod 21 moves to the designed position, the mold locker 20 is separated, the push plate 6 and the outer core plate 5 are separated, the product is ejected by the push core 14 arranged at the bottom of the push plate 6 and finally separated from the outer core 13, and the product falls off;

and finally opening the mould at PL1, taking the material handle out of the material channel by the stripper plate 2, and completing the whole mould opening process.

Claims

1. The utility model provides a can realize mould of taking off screw thread action, includes matched cover half and movable mould part, its characterized in that: the fixed die part comprises a fixed die attachment plate (1), a stripper plate (2) is arranged below the fixed die attachment plate (1), an inner pull rod assembly (22) is arranged between the fixed die attachment plate (1) and the stripper plate (2), a fixed die base plate (3) is arranged below the stripper plate (2), elastic glue (23) is arranged between the stripper plate (2) and the fixed die base plate (3), a fixed die plate (4), an outer core plate (5) and a push plate (6) are sequentially arranged below the fixed die base plate (3), the movable die part comprises a movable die attachment plate (8), a movable die plate (7) is arranged above the movable die attachment plate (8), the side surfaces of the push plate (6) and the movable die plate (7) are jointly connected with an outer pull plate (19), an inclined guide post (17) and a sliding block (16) connected with the inclined guide post in a sliding manner are arranged in the movable die plate (7), the slide block (16) is connected in the push plate (6) in a sliding way, a guide hole matched with the inclined guide post (17) is arranged on the slide block (16), the end part of the slide block (16) is connected with a side drawing insert (24), the side drawing insert (24) forms the side part of the cavity, a movable mold core (18) forming the bottom part of the cavity is also arranged on the movable mold plate (7),

an inner core (11) is arranged in the fixed die plate (4), a material channel which is communicated with the die cavity is arranged in the middle of the inner core (11), a threaded core (12) is rotatably sleeved outside the inner core (11), the top of the threaded core (12) is connected with a gear (15) which is rotatably supported in the fixed die plate (4), the gear (15) is meshed with a driving tooth which is positioned on the working end of a driving motor, an outer core (13) is also arranged at the bottom of the outer core plate (5), a spiral groove is arranged at the bottom end of the threaded core (12), a protruding part (25) is arranged at the bottom end of the outer core (13), and the spiral groove and the protruding part (25) jointly form the top surface part of the die cavity,

an elastic glue (23) is arranged between the fixed template (4) and the outer core plate (5), a mould locker (20) is arranged on the side surfaces of the outer core plate (5) and the push plate (6), a limit pull rod (21) is also arranged between the fixed template (4) and the outer core plate (5),

the bottom end face of the push plate (6) is also provided with a push core (14), and the bottom edge of the push core (14) is matched with the top edge of the cavity.