CN215512041U

CN215512041U - Cover body injection mold for injection molding machine

Info

Publication number: CN215512041U
Application number: CN202120757053.3U
Authority: CN
Inventors: 刘原; 徐建青; 计炜
Original assignee: Weijia Jiashan Industrial Co ltd
Current assignee: Weijia Jiashan Industrial Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2022-01-14
Anticipated expiration: 2031-04-14

Abstract

A cover body injection mold used on an injection molding machine comprises an upper mold base and a lower mold base. An upper die and a lower die are respectively fixed on the lower side of the upper die base and the upper side of the lower die base, four forming groove seats in a rectangular array are embedded in the lower die, four forming screws penetrate through the upper die, and the four forming screws are matched with the four forming groove seats; and the upper die holder is provided with a driving assembly for driving the forming screw to rotate. According to the utility model, the gear ring is driven by the air cylinder, and then the molding screw is driven by the gear ring, so that the screw is convenient to use in cooperation with an injection molding device, the screw is rotated after the thread on the inner wall of the cover body is molded, and the screw is screwed out in cooperation with the upward movement process of the upper die, so that the molded cover body cannot be damaged; the die is provided with the top plate, the top column, the lower hinge piece and the upper hinge piece, so that the top column is ejected upwards in the upward action process of the upper die, and the cover body in the forming groove seat is ejected.

Description

Cover body injection mold for injection molding machine

Technical Field

The utility model relates to the field of injection molding processing, in particular to a cover body injection mold for an injection molding machine.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. Generally, an injection mold is used in injection molding, but in injection molding of the cover body, threads are formed on the inner wall, so that the threads on the inner wall are easily damaged during demolding, and an operator does not conveniently take out the cover body after the cover body is molded by using the conventional mold, so that inconvenience is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cover body injection mold used on an injection molding machine, so as to solve the defects.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a cover body injection mold used on an injection molding machine comprises an upper mold base and a lower mold base.

An upper die and a lower die are respectively fixed on the lower side of the upper die base and the upper side of the lower die base, four forming groove seats in a rectangular array are embedded in the lower die, four forming screws penetrate through the upper die, and the four forming screws are matched with the four forming groove seats; and the upper die base is provided with a driving assembly for driving the forming screw to rotate.

Furthermore, the driving assembly comprises a fixing plate fixed on the upper side of the upper die base, a top plate is fixed on the fixing plate through a plurality of stand columns, a gear ring is rotatably arranged between the top plate and the fixing plate, an inner gear bulge is arranged on the inner wall of the gear ring, a shaft sleeve is embedded in the top plate, the upper end of the forming screw rod sequentially penetrates through the upper die, the upper die base and the fixing plate and extends into the shaft sleeve, a gear sleeve is fixedly sleeved in the middle of the forming screw rod, and a gear on the outer wall of the gear sleeve is meshed with the inner gear bulge; and a limiting plate for limiting the upper end of the shaft sleeve is fixed on the top plate.

Further, still be fixed with the installation piece between roof and the fixed plate, the outside of installation piece is fixed with the mount pad, be fixed with on the mount pad and drive actuating cylinder, the spout has been seted up to the inboard of installation piece, it is provided with the rack to slide in the spout, the output that drives actuating cylinder is fixed with the connection piece, the extension end of connection piece is fixed in the outside extension of rack and is served, the outer wall of ring gear has the external gear arch, the rack meshes with the external gear arch mutually.

Furthermore, the lower side of the top plate and the upper side of the fixing plate are both fixed with limit ring pieces, a first annular groove is formed in the inner side of each limit ring piece, a second annular groove is formed in the upper end face and the lower end face of the gear ring, and a plurality of balls are arranged between the corresponding first annular groove and the corresponding second annular groove in a sliding mode.

Further, a forming groove is formed in the forming groove seat, a pattern groove is formed in the inner wall of the forming groove, an injection molding groove is formed in the forming groove seat and the lower die, the inner side end of the injection molding groove is intersected at the center of the lower die, and an injection molding channel is downwards formed in the center intersection of the inner side end of the injection molding groove and the lower die.

Further, the downside of die holder still is fixed with the fixing base, be provided with the top plate in the fixing base, the opposite side of top plate extends, the extension end of top plate articulates there is articulated piece down, also be fixed with the fixed block on the relative lateral surface of upper die base, the outside of fixed block articulates there is articulated piece, the extension end of going up articulated piece is articulated mutually with the extension end of articulated piece down, the passageway of moulding plastics runs through lower mould, die holder and fixing base, be fixed with four fore-set posts on the top plate, the upper end of fore-set post extends to in the shaping groove seat.

Furthermore, four positioning columns are fixed on the lower side of the upper die, positioning holes are formed in the lower die and the lower die holder, and the positioning columns are matched with the positioning holes.

The utility model has the advantages that:

the cover body injection mold for the injection molding machine, disclosed by the utility model, drives the gear ring through the air cylinder and then drives the molding screw through the gear ring, so that the injection molding device is convenient to use, the screw is rotated after the threads on the inner wall of the cover body are molded, and the screw is screwed out by matching with the upward moving process of the upper mold, so that the molded cover body cannot be damaged; the die is provided with the top plate, the top column, the lower hinge piece and the upper hinge piece, so that the top column is ejected upwards in the upward action process of the upper die, and the cover body in the forming groove seat is ejected.

Drawings

FIG. 1 is a schematic structural view of a cover injection mold for an injection molding machine according to the present invention;

FIG. 2 is a right side view of the mold;

FIG. 3 is a cross-sectional view of the mold;

FIG. 4 is a bottom view of the mold;

fig. 5 is a plan view of the upper mold and the molding socket in the mold.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

As shown in fig. 1 to 5, the injection mold for a cap body on an injection molding machine according to the present invention includes an upper mold base 1 and a lower mold base 2. An upper die 3 and a lower die 4 are respectively fixed on the lower side of the upper die holder 1 and the upper side of the lower die holder 2, four forming groove seats 41 in a rectangular array are embedded on the lower die 4, four forming screws 5 penetrate through the upper die 3, and the four forming screws 5 are matched with the four forming groove seats 41; and the upper die holder 1 is provided with a driving assembly for driving the forming screw 5 to rotate. Through adopting above-mentioned technical scheme, through the rotation drive of drive assembly to the shaping screw rod for rotatory with the screw rod after the screw thread shaping to the lid inner wall, the ascending process of removal in mould in the cooperation makes the screw rod screw-out, makes the lid after can not damaging the shaping.

The utility model is further configured to: the driving assembly comprises a fixing plate 6 fixed on the upper side of the upper die base 1, a top plate 8 is fixed on the fixing plate 6 through a plurality of stand columns 7, a gear ring 9 is rotatably arranged between the top plate 8 and the fixing plate 6, an inner wall of the gear ring 9 is provided with an inner gear bulge, a shaft sleeve 10 is embedded in the top plate 8, the upper end of the forming screw rod 5 sequentially penetrates through the upper die 3, the upper die base 1 and the fixing plate 6 and extends into the shaft sleeve 10, a gear sleeve is fixedly sleeved in the middle of the forming screw rod 5, and a gear on the outer wall of the gear sleeve is meshed with the inner gear bulge; and a limiting plate 11 for limiting the upper end of the shaft sleeve 10 is fixed on the top plate 8. Through adopting above-mentioned technical scheme for the gear ring inner wall is convenient for drive the shaping screw rod.

The utility model is further configured to: still be fixed with installation piece 12 between roof 8 and the fixed plate 6, the outside of installation piece 12 is fixed with mount pad 13, be fixed with on the mount pad 13 and drive actuating cylinder 14, spout 121 has been seted up to the inboard of installation piece 12, it is provided with rack 15 to slide in the spout 121, the output that drives actuating cylinder 14 is fixed with connection piece 16, the extension end of connection piece 16 is fixed in on the outside extension end of rack 15, the outer wall of ring gear 9 has the external gear arch, rack 15 meshes with the external gear arch mutually. Through adopting above-mentioned technical scheme for can drive the forming screw through the cylinder, make the cooperation device of moulding plastics of being convenient for use.

The utility model is further configured to: the lower side of the top plate 8 and the upper side of the fixing plate 6 are both fixed with a limiting ring piece 17, a first annular groove is formed in the inner side of the limiting ring piece 17, a second annular groove is formed in the upper end face and the lower end face of the gear ring 9, and a plurality of balls are arranged between the first annular groove and the second annular groove in a sliding mode correspondingly. Through adopting above-mentioned technical scheme, through the setting of first ring channel, second ring channel and ball for the ring gear of being convenient for drives, makes the bellied use of gear of ring gear inside and outside wall can not receive the interference.

The utility model is further configured to: the forming groove seat 41 is provided with a forming groove, the inner wall of the forming groove is provided with a pattern groove, the forming groove seat 41 and the lower die 4 are provided with an injection molding groove 42, the inner side end of the injection molding groove 42 is crossed at the center of the lower die, and the center crossed part is provided with an injection molding channel 43 downwards. Through adopting above-mentioned technical scheme, through the formation of the passageway of moulding plastics, what make is convenient for to moulding plastics in the shaping groove seat when last mould and lower mould compound die, is convenient for through the lid shaping, and through the groove shaping's of moulding plastics connecting strip for be convenient for take out the lid that the shaping was accomplished through the connecting strip.

The utility model is further configured to: the downside of die holder 2 still is fixed with fixing base 18, be provided with the top sheet in the fixing base 18, the opposite side of top sheet extends, the extension end of top sheet articulates there is articulated piece 19 down, also be fixed with fixed block 20 on the relative lateral surface of upper die base 1, the outside of fixed block 20 articulates there is articulated piece 21, the extension end of going up articulated piece 21 is articulated mutually with the extension end of articulated piece 19 down, the passageway 43 of moulding plastics runs through lower mould 4, die holder 2 and fixing base 18, be fixed with four fore-set posts on the top sheet, the upper end of fore-set extends to in the shaping groove seat 41. Through adopting above-mentioned technical scheme, through top piece, fore-set, articulated piece and the setting of going up articulated piece down for go up the mould and in the action process that makes progress, make the fore-set ejecting upwards, make the lid with in the shaping groove seat ejecting.

The utility model is further configured to: four positioning columns 22 are fixed on the lower side of the upper die 3, positioning holes are formed in the lower die 4 and the lower die base 2, and the positioning columns 22 are matched with the positioning holes. By adopting the technical scheme, the positioning columns and the positioning holes are arranged, so that the upper die and the lower die are positioned conveniently.

The working principle of the utility model is as follows:

through installing this mould in injection moulding device, then will go up mould and lower mould and carry out the compound die, then mould plastics for the lid shaping, then drive the shaping screw rod through drive assembly and carry out just reverse rotation, make the screw thread in the lid shape, after the completion, upward process of removal is gone up in the cooperation, makes the screw rod screw out, makes the lid after can not damaging the shaping.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims

1. The utility model provides a lid injection mold for on injection molding machine, includes upper die base (1) and die holder (2), its characterized in that:

an upper die (3) and a lower die (4) are respectively fixed on the lower side of the upper die base (1) and the upper side of the lower die base (2), four forming groove bases (41) in a rectangular array are embedded on the lower die (4), four forming screws (5) penetrate through the upper die (3), and the four forming screws (5) are matched with the four forming groove bases (41); and the upper die holder (1) is provided with a driving assembly for driving the forming screw (5) to rotate.

2. A cover injection mold for an injection molding machine as claimed in claim 1, wherein: the driving assembly comprises a fixing plate (6) fixed on the upper side of the upper die base (1), a top plate (8) is fixed on the fixing plate (6) through a plurality of stand columns (7), a gear ring (9) is rotatably arranged between the top plate (8) and the fixing plate (6), an inner wall of the gear ring (9) is provided with an inner gear protrusion, a shaft sleeve (10) is embedded in the top plate (8), the upper end of the forming screw (5) sequentially penetrates through the upper die (3), the upper die base (1) and the fixing plate (6) and extends into the shaft sleeve (10), a gear sleeve is fixedly sleeved in the middle of the forming screw (5), and an outer wall gear of the gear sleeve is meshed with the inner gear protrusion; and a limiting plate (11) used for limiting the upper end of the shaft sleeve (10) is fixed on the top plate (8).

3. A cover injection mold for an injection molding machine as claimed in claim 2, wherein: still be fixed with between roof (8) and fixed plate (6) installation piece (12), the outside of installation piece (12) is fixed with mount pad (13), be fixed with on mount pad (13) and drive actuating cylinder (14), spout (121) have been seted up to the inboard of installation piece (12), it is provided with rack (15) to slide in spout (121), the output that drives actuating cylinder (14) is fixed with connection piece (16), the outside extension that the end of extension of connection piece (16) is fixed in rack (15) is served, the outer wall of ring gear (9) has the external gear arch, rack (15) and the protruding mesh of external gear mutually.

4. A cover injection mold for an injection molding machine as claimed in claim 2, wherein: the lower side of the top plate (8) and the upper side of the fixing plate (6) are both fixed with limiting ring pieces (17), first annular grooves are formed in the inner sides of the limiting ring pieces (17), second annular grooves are formed in the upper end face and the lower end face of the gear ring (9), and a plurality of balls are arranged between the first annular grooves and the second annular grooves in a sliding mode.

5. A cover injection mold for an injection molding machine as claimed in claim 1, wherein: the shaping groove has been seted up on shaping groove seat (41), the decorative pattern groove has been seted up to shaping inslot wall, shaping groove seat (41) and lower mould (4) have been seted up and have been moulded plastics groove (42), the medial extremity in the lower mould center intersection in the groove of moulding plastics (42), and passageway (43) of moulding plastics has been seted up downwards to its central intersection.

6. A cover injection mold for an injection molding machine as claimed in claim 5, wherein: the downside of die holder (2) still is fixed with fixing base (18), be provided with the top plate in fixing base (18), the opposite side of top plate extends, the extension end of top plate articulates there is articulated piece (19) down, also be fixed with fixed block (20) on the relative lateral surface of upper die base (1), the outside of fixed block (20) articulates there is articulated piece (21) of going up, the extension end of going up articulated piece (21) is articulated mutually with the extension end of articulated piece (19) down, passageway (43) of moulding plastics runs through lower mould (4), die holder (2) and fixing base (18), be fixed with four fore-set on the top plate, the upper end of fore-set extends to in shaping groove seat (41).

7. A cover injection mold for an injection molding machine as claimed in claim 2, wherein: four positioning columns (22) are fixed on the lower side of the upper die (3), positioning holes are formed in the lower die (4) and the lower die holder (2), and the positioning columns (22) are matched with the positioning holes.