CN216230529U

CN216230529U - Prevent injection molding buckling deformation's setting device

Info

Publication number: CN216230529U
Application number: CN202122844347.2U
Authority: CN
Inventors: 付永昭
Original assignee: Qingdao Chuangye Plastic Products Co ltd
Current assignee: Qingdao Chuangye Plastic Products Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-08
Anticipated expiration: 2031-11-19

Abstract

The utility model provides a shaping device for preventing an injection molding piece from warping and deforming, which comprises an upper die and a lower die attached to the lower end of the upper die, wherein a plurality of concave holes which are arranged in a rectangular shape are formed in the lower end of the lower die at equal intervals, a frame type top plate is movably arranged in a step groove, vertical parts of a plurality of inverted T-shaped rods which are arranged in a rectangular shape are arranged on the frame type top plate at equal intervals, the inverted T-shaped rods penetrate through the lower die and extend into the concave holes, the transverse parts of the inverted T-shaped rods are connected with the concave holes in a sliding mode, first elastic pieces are arranged on the vertical parts of the inverted T-shaped rods, and the first elastic pieces are fixed between the transverse parts of the inverted T-shaped rods and the top ends of the inner parts of the concave holes.

Description

Prevent injection molding buckling deformation's setting device

Technical Field

The utility model discloses a shaping device for preventing warping and deformation of an injection molding piece, and belongs to the technical field of injection molding piece processing.

Background

The injection molding part is a general injection molding part of various injection molding products produced by an injection molding machine, comprises various packages, parts and the like, is mainly made of materials such as polyethylene or polypropylene and the like and is added with various organic solvents, the buckling deformation of the injection molding part, particularly a large thin-wall injection molding part, is a prominent problem influencing the quality of the injection molding part, in the prior art, the buckling deformation of the injection molding part is prevented by generally adopting reinforcing ribs to increase the wall thickness so as to prevent the buckling deformation of the injection molding part, however, when some injection molding parts with frames are jacked by the mold opening of the molding device, the fixed mold in the molding device is easy to generate pulling force on the frames of the injection molding parts, so that the frames of the injection molding parts are subjected to the phenomena of internal shrinkage, warping, deformation and the like, and then need carry out the plastic operation of doing over again to the injection molding, can increase manufacturing cost, consequently need design a setting device that prevents injection molding buckling deformation to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the shaping device for preventing the injection molding part from warping and deforming so as to solve the problems in the background technology, reduce the rework rate and reduce the production cost.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a prevent injection molding buckling deformation's setting device, includes the lower mould of mould and laminating at last mould lower extreme, the step groove is seted up to the lower mould upper end, step groove lower extreme intercommunication shaping main cavity, a plurality of shrinkage pools that are the rectangle and arrange are seted up to lower mould lower extreme equidistance, and the shrinkage pool setting is in the shaping main cavity outside at step groove downside, step inslot movable mounting frame roof, the installation of frame roof equidistance is the vertical portion of a plurality of T type poles of falling that the rectangle was arranged, the T type pole of falling passes the lower mould and extends into the shrinkage pool inside and the horizontal portion and shrinkage pool sliding connection of the T type pole of falling, the first elastic component of vertical portion installation of T type pole and first elastic component are fixed between the horizontal portion of the T type pole of falling and the inside top of shrinkage pool.

Further, a plurality of grooves which are arranged in a rectangular shape are machined in the upper end of the frame type top plate at equal intervals, and the grooves extend to the inner end of the frame type top plate.

Further, the frame type heat insulation plate is fixed on the inner wall of the frame type top plate and located at the bottom end inside the step groove, the upper end face of the frame type heat insulation plate is overlapped with the upper end face of the frame type top plate, and a groove is formed in the outer end of the frame type heat insulation plate.

Further, frame heater and frame roof electric connection are connected to frame roof lower extreme fixed connection frame heater, the frame heater sets up in frame heat insulating board outer end, the vertical portion of a plurality of type of falling T poles is fixed to the frame heater lower extreme.

Further, a frame-type groove is formed in the lower end of the frame-type heat insulation plate, a sealing element is assembled on the frame-type groove, and the frame-type heat insulation plate is connected with the step groove in a sealing mode through the sealing element.

Further, outer marginal position fixed connection frame stripper plate is leaned on to frame roof upper end, and the laminating of frame stripper plate is on the vertical outer wall in step groove, frame stripper plate up end and lower mould upper end coincide together.

Further, install the second elastic component between the inside bottom of horizontal portion lower extreme and the shrinkage pool of type of falling T pole.

The utility model has the beneficial effects that: the utility model discloses a shaping device for preventing an injection molding part from warping and deforming.

1. Utilize the recess, the strengthening rib is set up to the frame lower extreme at the injection molding, effectively reduce the injection molding and take place warpage probability, in the die sinking process, under first elastic component and second elastic component effect, can make frame roof and frame heat insulating board along with last mould rebound, and then carry out the centre gripping to the frame of injection molding, and utilize recess and frame heat insulating board, set the frame of injection molding, start the frame heater simultaneously, thereby make the frame roof heat up, heat the frame of injection molding, further realize the design effect, effectively avoid making the frame of injection molding contract in dragging the injection molding die sinking, the warpage, phenomenons such as deformation, reduce the rate of doing over again, reduction in production cost.

2. When the compound die, can make the type of falling T pole move down along the shrinkage pool, and then stretch and compress the second spring to first spring to make first spring and second spring produce elastic force, when the die sinking, under the elastic force effect of first spring and second spring, make the type of falling T pole shift up, and then make frame roof and frame heat insulating board shift up, and then move out the injection molding from the lower mould, be convenient for get the material.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a molding device for preventing warpage of an injection molding part according to the present invention;

FIG. 2 is a cross-sectional view of a lower mold of the molding device for preventing the buckling deformation of the injection molding part;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a perspective view of a frame type top plate in the shaping device for preventing the buckling deformation of the injection molding part.

In the figure: 1-upper die, 2-step groove, 3-forming main cavity, 4-lower die, 5-frame type heat insulation plate, 6-frame type top plate, 7-inverted T-shaped rod, 8-first spring, 9-second spring, 51-frame type rubber pad, 61-frame type heater and 62-groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a prevent injection molding buckling deformation's setting device, includes mould 1 and the lower mould 4 of laminating at last mould 1 lower extreme, and step groove 2 is seted up to 4 upper ends of lower mould, and 2 lower extremes intercommunication shaping main cavities 3 in step groove are last mould 1 and lower mould 4 closed, go up the bellying and step groove 2 and shaping main cavity 3 formation of mould 1 and decide the die cavity to the operation of moulding plastics is realized.

A frame type top plate 6 is movably arranged in the step groove 2, a mounting carrier is provided for the frame type extrusion plate 63 through the frame type top plate 6, the frame type extrusion plate 63 is fixedly connected to the upper end of the frame type top plate 6 close to the outer edge position, the frame type extrusion plate 63 is matched with the upper die 1 for use, the frame type top plate 6 and the inverted T-shaped rods 7 can move downwards, the frame type extrusion plate 63 is attached to the vertical outer wall of the step groove 2, the upper end surface of the frame type extrusion plate 63 is superposed with the upper end of the lower die 4, the vertical parts of a plurality of inverted T-shaped rods 7 which are arranged in a rectangular shape are equidistantly arranged on the frame type top plate 6, the frame type heat insulation plate 5 is fixed on the inner wall of the frame type top plate 6, the frame type heat insulation plate 5 is positioned at the bottom end inside the step groove 2, the frame type heat insulation plate 5, the top plate 6 and the frame type extrusion plate 63 are matched for use, the frame type heater 61 can be protected, the frame type groove is arranged at the lower end of the frame type heat insulation plate 5, a mounting space is provided for a sealing element through the frame type groove, and the sealing member is assembled on the frame type groove, the frame type heat insulation plate 5 is connected with the step groove 2 in a sealing mode through the sealing member, sealing between the frame type heat insulation plate 5 and the step groove 2 is achieved through the sealing member, contact between injection molding liquid and the frame type heater 61 is effectively avoided, the sealing member can adopt a frame type rubber pad 51, and the upper end face of the frame type heat insulation plate 5 is overlapped with the upper end face of the frame type top plate 6.

Specifically, in the closing process of the upper die 1 and the lower die 4, the upper die 1 moves downwards and contacts with the frame type extrusion plate 63 firstly, then the die closing motion is continued, the frame type extrusion plate 63 moves downwards, the frame type top plate 6 and the inverted T-shaped rod 7 are driven to move downwards, the frame type top plate 6 is pressed into the step groove 2, the fixed cavity is formed by matching with the forming main cavity 3 and is used for injection molding operation, the first elastic piece and the second elastic piece are stretched and compressed, and the first elastic piece and the second elastic piece generate elastic force,

6 upper ends equidistance processing of frame roof is a plurality of recesses 62 and recess 62 that the rectangle arranged and extends to 6 inner of frame roof, through recess 62, on the one hand, can be provided with the strengthening rib at the frame of injection molding, on the other hand cooperates with frame heat insulating board 5, can finalize the design to the frame of injection molding and drag, 5 outer ends of frame heat insulating board set up

recess

62, 6 lower extreme fixed connection frame heaters 61 of frame roof 61 and

frame heater

61 and 6 electric connection of frame roof, frame heater 61 sets up in 5 outer ends of frame heat insulating board, the fixed a plurality of vertical portions of type of falling T poles 7 of frame heater 61 lower extreme.

Specifically, in moulding plastics, utilize recess 62, the strengthening rib is set up to the frame lower extreme at the injection molding, effectively reduce the injection molding and take place warpage probability, in the die sinking in-process, under first elastic component and second elastic component effect, can make frame roof 6 and frame heat insulating board 5 along with last mould 1 upwards remove, and then carry out the centre gripping to the frame of injection molding, and utilize recess 62 and frame heat insulating board 5, stereotype the frame of injection molding, start frame heater 61 simultaneously, thereby make frame roof 6 heat up, heat the frame of injection molding, further realize the design effect, effectively avoid making the frame of injection molding shrink in dragging the injection molding die sinking, the warpage, phenomenons such as deformation, reduce the rate of doing over again, and reduce manufacturing cost.

A plurality of shrinkage pools that are the rectangle and arrange are seted up to 4 lower extremes equidistance of lower mould, through the shrinkage pool, remove to falling T type pole 7 and lead, and the shrinkage pool setting is in the 3 outsides of shaping main cavity at 2 downside in step groove, it passes lower mould 4 and extends into the shrinkage pool inside and the horizontal portion and the shrinkage pool sliding connection of falling T type pole 7 to fall T type pole 7, the first elastic component of vertical portion installation and first elastic component of falling T type pole 7 are fixed between the horizontal portion of falling T type pole 7 and the inside top of shrinkage pool, install the second elastic component between the horizontal portion lower extreme of falling T type pole 7 and the inside bottom of shrinkage pool, first elastic component and second elastic component cooperation are used, can make the normal position of returning of falling T type pole 7, first elastic component can adopt first spring 8, the second elastic component can adopt second spring 9.

Specifically, when the compound die, can make the type of falling T pole 7 move down along the shrinkage pool, and then stretch first spring 8 and compress second spring 9 to make first spring 8 and second spring 9 produce the elastic force, when the die sinking, under the elastic force effect of first spring 8 and second spring 9, make the type of falling T pole 7 move up, and then make frame roof 6 and frame heat insulating board 5 move up, and then shift out the injection molding from lower mould 4, be convenient for get the material.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prevent injection molding buckling deformation's setting device, includes that last mould (1) and laminating are in lower mould (4) of last mould (1) lower extreme, step groove (2) are seted up to lower mould (4) upper end, step groove (2) lower extreme intercommunication shaping main cavity (3), its characterized in that: lower mould (4) lower extreme equidistance is seted up and is a plurality of shrinkage pools that the rectangle arranged, and the shrinkage pool setting is in the shaping main cavity (3) outside at step groove (2) downside, movable mounting frame roof (6) in step groove (2), the installation of frame roof (6) equidistance is the vertical portion of a plurality of type of falling T poles (7) that the rectangle arranged, type of falling T pole (7) pass lower mould (4) and extend into the shrinkage pool inside and the horizontal portion and shrinkage pool sliding connection of type of falling T pole (7), the first elastic component of vertical portion installation of type of falling T pole (7) and first elastic component are fixed between the horizontal portion and the inside top of shrinkage pool of type of falling T pole (7).

2. The device for preventing the injection molding part from buckling and deforming as claimed in claim 1, wherein: a plurality of grooves (62) which are arranged in a rectangular shape are machined in the upper end of the frame type top plate (6) at equal intervals, and the grooves (62) extend to the inner end of the frame type top plate (6).

3. The device for preventing the injection molding part from buckling and deforming as claimed in claim 2, wherein: the fixed frame heat insulating board (5) of frame roof (6) inner wall and frame heat insulating board (5) are in on step groove (2) inside bottom, frame heat insulating board (5) up end and frame roof (6) up end coincide are in the same place, frame heat insulating board (5) outer end sets up recess (62).

4. The device for preventing the injection molding part from buckling and deforming as claimed in claim 3, wherein: frame roof (6) lower extreme fixed connection frame heater (61) and frame roof (6) electric connection, frame heater (61) set up in frame heat insulating board (5) outer end, the vertical portion of a plurality of type of falling T poles (7) is fixed to frame heater (61) lower extreme.

5. The device for preventing the injection molding part from buckling and deforming as claimed in claim 3, wherein: frame groove is seted up to frame heat insulating board (5) lower extreme, and assembles the sealing member on the frame groove, frame heat insulating board (5) are through sealing member and step groove (2) sealing connection.

6. The device for preventing the injection molding part from buckling and deforming as claimed in claim 1, wherein: frame roof (6) upper end is leaned on outer fringe position fixed connection frame stripper plate (63), and the laminating of frame stripper plate (63) is on the vertical outer wall of step groove (2), frame stripper plate (63) up end and lower mould (4) upper end coincide are in the same place.

7. The device for preventing the injection molding part from buckling and deforming as claimed in claim 1, wherein: and a second elastic piece is arranged between the lower end of the transverse part of the inverted T-shaped rod (7) and the bottom end inside the concave hole.