CN210453581U

CN210453581U - One-step forming die for box with handle product

Info

Publication number: CN210453581U
Application number: CN201921032638.8U
Authority: CN
Inventors: 宋越南
Original assignee: Ningbo Hengqi Precision Mould Co ltd
Current assignee: Ningbo Hengqi Precision Mould Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-05
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a one-step forming die of a box with a handle product, which comprises a lower die carrier, a die core, a female die and an upper die carrier which are arranged from bottom to top, wherein a male die is formed at the upper end of the die core, a push plate is arranged between the female die and the male die, a first die cavity is formed between the female die and the male die, and a second die cavity is formed between the female die and the push plate; the surface of the female die, which is attached to the push plate, is provided with a glue flow channel; the core pulling device comprises a core pulling plate, a sliding block and two ejector pins, wherein the lower end of the core pulling plate is abutted against the outer side surface of the sliding block, one ejector pin penetrates into a forming groove at the head end of a first die cavity inwards, and the other ejector pin penetrates into a second die cavity inwards; the lifting mechanism comprises an oil cylinder, a lifting needle plate and a push rod. Its technical scheme makes the box structure and the one shot injection moulding of handle structure that can realize the product, promotes production efficiency greatly to avoid separating not supporting and the neglected packing problem that the shaping exists, effectively promote product quality.

Description

One-step forming die for box with handle product

Technical Field

The utility model relates to a mold equipment technical field especially relates to a box area one shot forming mould of handle product.

Background

At present, the handle and the box which are known in the market are formed by separately opening the die and separately injecting and molding, and then the handle is pressed into the handle hole of the box for packaging. The disadvantage of separate molding is that two molds and two injection molding machines are required for injection molding, which wastes production time and machine utilization rate, and the separate molding is easy to produce non-matching during production and packaging missing phenomenon during packaging, which affects product quality.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the box that aims at realizing the product constructs and the one shot forming mould of handle structure one shot injection moulding and promotes production efficiency greatly now is provided for overcome above-mentioned technical defect.

The specific technical scheme is as follows:

a one-step forming die for a box with a handle product comprises a lower die carrier, a die core, a female die and an upper die carrier which are arranged from bottom to top, wherein a male die matched with the structure of the female die is formed at the upper end of the die core, a push plate capable of longitudinally lifting is arranged between the female die and the male die, a first die cavity of the box structure for forming the product is formed between the female die and the male die, and a second die cavity of the handle structure for forming the product is formed between the female die and the push plate;

the end surface of the female die facing the upper end of the male die is provided with a glue injection port, and the surface of the female die, which is attached to the push plate, is provided with at least one glue flow channel for communicating the first die cavity with the second die cavity;

the one-step forming die further comprises two core-pulling slider assemblies, each core-pulling slider assembly comprises a core-pulling plate which can be vertically lifted and arranged in the female die, a slider which can be horizontally arranged on the lower end surface of the female die in a sliding manner, and two ejector pins which are horizontally connected to the inner side of the slider, the lower end of the core-pulling plate is abutted against the outer side surface of the slider, one ejector pin penetrates into a forming groove at the head end of the first die cavity inwards to form connecting rods at two ends of the handle structure, and the other ejector pin penetrates into the second die cavity inwards to form a reserved hole in the box structure;

the one-step forming die further comprises a jacking mechanism, the jacking mechanism comprises an oil cylinder and an ejector plate which are arranged in the lower die frame, and a push rod which is vertically arranged on the ejector plate, a piston rod of the oil cylinder upwards penetrates through the die core and is connected with the push plate, and the upper end of the push rod penetrates through the die core and the male die and is right opposite to the bottom surface of the box of the product.

Preferably, the lower end face of the female die is provided with an annular insert, and the second die cavity is formed by slotting the opposite end faces of the insert and the push plate.

Preferably, at least one groove for accommodating the first spring is formed in the inner side of the sliding block, and two ends of the first spring are respectively abutted against the inner bottom surface of the groove and the outer peripheral wall of the embedded block.

Preferably, an accommodating groove for accommodating the second spring is formed in the end face, facing the mold core, of the female mold, and the upper end of the second spring is connected to the inner bottom surface of the accommodating groove while the lower end face of the second spring abuts against the mold core.

Preferably, the number of the glue flow channels is two.

Preferably, the inner side of the push plate is also provided with a circumferential groove for forming a buckling position on the outer circumferential wall of the box structure.

The beneficial effects of the above technical scheme are that:

the one-step forming die for the product with the handle comprises a lower die frame, a die core, a female die, an upper die frame, a core-pulling and sliding block assembly and a jacking mechanism, so that the one-step injection molding of the box structure and the handle structure of the product can be realized, the production efficiency is greatly improved, the problems of non-matching and packaging missing in the separate forming process are avoided, and the product quality is effectively improved.

Drawings

FIG. 1 is a perspective view of a one-step forming mold for a product with a handle of the present invention;

FIG. 2 is a cross-sectional view of a one-step forming mold for a product with a handle of the present invention;

FIG. 3 is a cross-sectional view of another perspective of the one-time forming mold for a product with a handle of the present invention;

FIG. 4 is a perspective view of the box with handle of the present invention, with the lower mold frame and the mold core omitted;

FIG. 5 is a perspective view of the box with handle of the present invention, with the upper mold frame and the female mold omitted;

FIG. 6 is a perspective view of a push plate and a jacking mechanism in a one-step forming mold for a product with a handle of the present invention;

FIG. 7 is a perspective view of the core pulling slider in the one-step forming mold for the product with handle of the present invention;

FIG. 8 is a perspective view of the push plate and the insert block of the one-step forming mold for the product with the handle of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.

In the first embodiment, the first step is,

referring to fig. 1 to 7, and defining the upper, lower, left and right directions as shown by the paper surface in fig. 2 as the upper, lower, left and right directions in this embodiment, the present invention provides a one-step forming mold for a product with a handle in a box, which comprises a lower mold frame 1, a mold core 2, a female mold 4 and an upper mold frame 5 arranged from bottom to top, wherein a male mold 3 matched with the structure of the female mold 4 is formed at the upper end of the mold core 2, a push plate 7 capable of vertically lifting is arranged between the female mold 4 and the male mold 3, a first mold cavity for forming the box structure of the product is formed between the female mold 4 and the male mold 3, and a second mold cavity 12 for forming the handle structure of the product is formed between the female mold 4;

the end face of the female die 4 facing the upper end of the male die 3 is provided with a glue injection port, and the joint surface of the female die 4 and the push plate 7 is provided with at least one glue flow channel 14 communicated with the first die cavity and the second die cavity 12 for allowing glue to flow into the second die cavity 12 to form a handle structure;

the one-step forming die further comprises two core-pulling slider assemblies 6, each core-pulling slider assembly 6 comprises a core-pulling plate 61 which can be vertically lifted and lowered and is arranged in the female die 4, a slider 62 which can be horizontally slidably arranged on the lower end surface of the female die 4 (namely, one side facing the push plate 7), and two ejector pins 63 which are horizontally connected to the inner side of the slider 62, the lower end of the core-pulling plate 61 abuts against the outer side surface of the slider 62, one ejector pin 63 inwards penetrates into a forming groove at the head end of the first die cavity for forming connecting rods at two ends of the handle structure, and the other ejector pin 63 inwards penetrates into the second die cavity 12 for forming a reserved hole on the box structure; specifically, the preformed hole is matched with the connecting rod structure and used for assembling the handle structure and the box structure into a whole after injection molding.

The one-step forming die further comprises a jacking mechanism, the jacking mechanism comprises an oil cylinder 8 and an ejector plate 9 which are arranged in the lower die carrier 1, and a push rod 10 which is erected on the ejector plate 9, a piston rod of the oil cylinder 8 upwards penetrates through the die core 2 and is connected with the push plate 7, and the upper end of the push rod 10 penetrates through the die core 2 and the male die 3 and is right opposite to the bottom surface of the box of a product.

Based on above-mentioned technical scheme, the one shot forming mould of box area handle product includes die carrier 1, mold core 2, die 4, goes up die carrier 5, slider-pulling-core subassembly 6 and climbing mechanism down for can realize the one shot injection moulding of box structure and the handle structure of product, promote production efficiency greatly, and avoid separating not supporting and the neglected packing problem that the shaping exists, effectively promote product quality.

In a preferred embodiment, the lower end face of the female die 4 has an annular insert 41, and the second cavity 12 is formed by notching the opposite end faces of the insert 41 and of the push plate 7. Further, at least one groove 64 for accommodating a first spring is formed in the inner side of the slide block 62, and two ends of the first spring respectively abut against the inner bottom surface of the groove 64 and the outer peripheral wall of the insert 41, so that the slide block 62 is pushed by the spring after the core pulling plate 61 releases the locking state of the slide block 62, and the two ejector pins 63 are pulled out of the product. Furthermore, a containing groove for containing a second spring is formed in the end face, facing the mold core 2, of the female mold 4, the upper end of the second spring is connected to the inner bottom surface of the containing groove, the lower end face of the second spring abuts against the mold core 2, and therefore the female mold 4 and the male mold 3 are separated under the action of the second spring after the upper mold base 5 moves upwards. In addition, the ejector plate 9 is pushed by the injection molding machine. The mold core 2 is further provided with a gas cap assembly and a cooling water passage, which are conventionally used in the art, and thus, the detailed description thereof is omitted. Further, the number of the flow channels 14 is two. Furthermore, the inner side of the push plate 7 is also provided with a circumferential groove 15 for forming a buckling position on the outer circumferential wall of the box structure.

In the second embodiment, the first embodiment of the method,

based on the molding demolding process of the one-step molding mold for the product with the handle, the method comprises the following steps:

step a, after die assembly, injecting glue through a glue injection port, allowing the glue to enter a first die cavity, then allowing the glue to enter a second die cavity 12 through a glue flow channel 14, forming a box structure in the first die cavity, and forming a handle structure in the second die cavity 12;

step b, the upper die frame 5 is lifted upwards, and the female die 4 is sprung upwards under the action of a second spring and separated from the die core;

step c, the core-pulling plate 61 is lifted upwards, the two sliding blocks 62 slide outwards under the action of the first spring, the ejector pin 63 is separated from the product, and the female die 4 is further lifted upwards;

d, the oil cylinder 8 operates and drives the push plate 7 and the product to lift upwards for a preset distance;

and e, pushing the ejector plate 9 and the push rod 10 to move upwards by the injection molding machine, further lifting upwards after the upper end of the push rod 10 contacts the product, and forcibly releasing the buckling position on the peripheral wall of the box structure from the annular groove 15.

Based on the above, can realize the box structure and the one shot injection moulding of handle structure and the drawing of patterns of product, promote production efficiency and product quality greatly. The lifting action is generally realized by a driving mechanism such as an oil cylinder 8, demoulding can be further assisted by an air cap after the forced demoulding, and the action of resetting the part is performed in the reverse direction, so that the repeated description is omitted.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The one-step forming die for the box with the handle product is characterized by comprising a lower die carrier (1), a die core (2), a female die (4) and an upper die carrier (5) which are arranged from bottom to top, wherein a male die (3) matched with the female die (4) in structure is formed at the upper end of the die core (2), a push plate (7) capable of longitudinally lifting is arranged between the female die (4) and the male die (3), a first die cavity of the box structure for forming the product is formed between the female die (4) and the male die (3), and a second die cavity (12) of the handle structure for forming the product is formed between the female die (4) and the push plate (7);

the end face of the female die (4) facing the upper end of the male die (3) is provided with a glue injection port, and the joint face of the female die (4) and the push plate (7) is provided with at least one glue flow channel (14) communicated with the first die cavity and the second die cavity (12);

the one-step forming die further comprises two core-pulling slide assemblies (6), each core-pulling slide assembly (6) comprises a core-pulling plate (61) which can be vertically lifted and lowered and is arranged in the female die (4), a slide block (62) which can be horizontally slidably arranged on the lower end face of the female die (4) and two ejector pins (63) which are horizontally connected to the inner side of the slide block (62), the lower end of the core-pulling plate (61) is abutted against the outer side face of the slide block (62), one of the ejector pins (63) penetrates into a forming groove at the head end of the first die cavity inwards to form connecting rods at two ends of a handle structure, and the other ejector pin (63) penetrates into the second die cavity (12) inwards to form a reserved hole on a box structure;

the one shot forming mould still includes climbing mechanism, climbing mechanism including install in hydro-cylinder (8) and thimble board (9) in lower die carrier (1), erect in push rod (10) on thimble board (9), just the piston rod of hydro-cylinder (8) upwards passes mold core (2) and connect push pedal (7), push rod (10) upper end is passed mold core (2) and terrace die (3) are just to the box bottom surface of product.

2. One-shot forming die for box products with handles according to claim 1, characterized in that the lower end face of the female die (4) is provided with an annular insert (41), and the second die cavity (12) is formed by notching the opposite end faces of the insert (41) and the push plate (7).

3. The mold for one-shot forming of a product with a handle for a box according to claim 2, wherein the slider (62) has at least one recess (64) formed therein for receiving the first spring, and both ends of the first spring are respectively abutted against the inner bottom surface of the recess (64) and the outer peripheral wall of the insert (41).

4. The mold for one-step molding of a product with a handle in a box according to claim 3, wherein the female mold (4) has a receiving groove formed on an end surface facing the mold core (2) for receiving a second spring, and the second spring has an upper end connected to an inner bottom surface of the receiving groove and a lower end abutting against the mold core (2).

5. One-shot forming die for box products with handles according to claim 1, characterized in that the number of glue flow channels (14) is two.

6. A single-step forming die for a box product with a handle according to claim 1, wherein said push plate (7) has, on the inside, a circumferential groove (15) for forming a snap-fit on the peripheral wall of the box structure.