CN211807627U - Anti-theft buckle paper plastic cover die - Google Patents

Abstract

The utility model discloses a lid mould is moulded to theftproof knot paper, including preceding back mould, the back mould includes: a base plate; a shovel base; fixing a rear mold insert plate; a rear mold core; a rear mold insert; an inner slide block; two oppositely arranged split sliding blocks; an ejector plate; the front mold comprises a mold frame, a glue injection assembly and an inclined guide post; and the shovel base, the inner slide block, the sliding plate and the die cavity on the front die jointly form a die cavity. According to the technical scheme, the outer ring core pulling action and the product ejection action are not interfered with each other, the problems that the damage of die accessories is fast, the maintenance rate is high, and the service life of a die is shortened are effectively reduced, and the outer ring core pulling action is faster than the inclined ejection action, so that the production efficiency can be effectively improved.

Description

A kind of anti-theft buckle paper plastic cover mold

technical field

The utility model relates to the technical field of mold equipment, in particular to an anti-theft paper plastic cover mold.

Background technique

In the mold design of the known anti-theft buckle paper-plastic cover products, the design scheme of inclined top core pulling + ejection is generally adopted at the inner ring step of the product, but if the inclined top is not completely reset when the mold is closed, then the responsible The split slider and the inclined top of the outer core will interfere, which will lead to rapid damage to the mold parts, high maintenance rate, shortened mold life, slow ejection of the inclined top, and low production efficiency.

Utility model content

In view of the above problems existing in the prior art, an anti-theft device is provided which aims to make the core-pulling action of the outer ring and the product ejecting action do not interfere with each other, and effectively reduce the problems of rapid damage to mold parts, high maintenance rate, and shortened mold life. Buckle paper plastic cover mold, in order to overcome the above-mentioned technical defects.

The specific technical solutions are as follows:

An anti-theft paper plastic cover mold comprises a front mold and a rear mold which are matched, and a cavity for forming anti-theft paper plastic cover products is formed between the front mold and the back mold.

The back mold includes:

bottom plate;

The shovel base is fixedly connected to the front end of the bottom plate and extends forward, and the front end of the shovel base has a plurality of dovetail grooves inclined inward;

The rear mold insert fixing plate is located at the front end of the bottom plate, and at least one built-in oil cylinder is fixed horizontally on the bottom plate, and the output shaft of the built-in oil cylinder is fixedly connected with the rear mold insert fixing plate to push the rear mold insert fixing plate forward;

The rear mold core is installed on the front side of the fixing plate of the rear mold insert;

The rear mold insert has a through hole in the middle for passing through the shovel base, and the rear end of the rear mold insert is fixedly connected to the rear mold insert fixing plate;

There are the same number of inner sliders as dovetail grooves, and each inner slider can be assembled on the front end of the shovel base by sliding along the dovetail grooves;

Two oppositely arranged split sliders are respectively arranged on the front side of the rear mold core, and a sliding plate is respectively connected to the inward side of the split slider, and the two sliding plates are spliced to each other on the outer periphery of the rear mold insert. , and there is also an oblique guide hole on each of the split sliders;

The ejector plate is arranged in the bottom plate and is connected with the ejector rod of the injection molding machine, and there is also a push plate between the sliding plate and the rear mold core, and the push plate is connected to the ejector plate through the reset rod;

The front mold includes a mold base, plastic injection components installed in the mold base, and inclined guide posts in number and position opposite to the inclined guide holes. The matching oblique guide post and the oblique guide hole drive the two half-sliding sliders to separate horizontally in opposite directions;

In addition, the cavity is formed by the shovel base, the inner slider, the sliding plate and the cavity on the front mold.

Preferably, the number of dovetail grooves is four evenly arranged at the front end of the shovel base.

Preferably, the side of the sliding plate facing the rear mold insert is provided with a semicircular groove that is in close contact with the outer periphery of the rear mold insert.

Preferably, one side of the sliding plate connected to the split slider has a T-shaped connector, and the inward side of the split slider has a T-shaped groove matched with the T-shaped connector.

The beneficial effects of the above technical solutions are:

The anti-theft paper plastic cover mold includes a front mold and a rear mold. The front mold includes a mold base, injection components, and inclined guide posts. The inner slider, ejector plate, and push plate make the core-pulling action of the outer ring and the product ejecting action not interfere with each other, effectively reducing the problems of rapid damage to mold parts, high maintenance rate, and shortened mold life. Compared with the core-pulling action of the outer ring The ejection speed of the inclined top is faster, which can effectively improve the production efficiency.

Description of drawings

Fig. 1 is the sectional view of the utility model anti-theft buckle paper plastic cover mould;

Figure 2 is a perspective view of the utility model anti-theft paper plastic cover mold after the front mold is omitted;

Figure 3 is a partial cross-sectional view of the utility model anti-theft paper plastic cover mold after the front mold is omitted;

4 is a perspective view of the internal structure in the rear mold of the anti-theft paper plastic cover mold of the present invention;

5 is a perspective view of the shovel base and the inner slider in the anti-theft paper-plastic cover mold of the present invention;

6 is a perspective view 1 of a paper-plastic cover product corresponding to the anti-theft buckle paper-plastic cover mold of the present invention;

FIG. 7 is a second perspective view of the paper-plastic cover product corresponding to the anti-theft buckle paper-plastic cover mold of the present invention.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the following embodiments will specifically describe the present invention in conjunction with the accompanying drawings. And define the direction from bottom to top as shown on the paper in FIG. 1 as the direction from back to front in the present invention.

Example one,

Referring to FIGS. 1 to 7 , the anti-theft paper plastic cover mold provided in this embodiment includes a matching front mold and a rear mold, and is formed between the front mold and the rear mold for forming the anti-theft paper plastic cover product. cavities, where,

The back mold includes:

bottom plate 1;

The shovel base 5 is fixedly connected to the front end of the bottom plate 1 and extends forward, and the front end of the shovel base 5 has a plurality of dovetail grooves inclined inward;

The rear mold insert fixing plate 2 is located at the front end of the bottom plate 1, and at least one built-in oil cylinder 4 is fixed horizontally on the bottom plate 1, and the output shaft of the built-in oil cylinder 4 is fixedly connected to the rear mold insert fixing plate 2 to push the rear mold forward. Insert fixing plate 2;

The rear mold core 3 is installed on the front side of the rear mold insert fixing plate 2;

The rear mold insert 6 has a through hole in the middle for passing through the shovel base 5, and the rear end of the rear mold insert 6 is fixed to the rear mold insert fixing plate 2;

There are the same number of inner sliders 7 as the dovetail grooves, and each inner slider 7 is respectively assembled to the front end of the shovel base 5 slidably along the dovetail grooves;

Two oppositely arranged split sliders 8 are respectively arranged on the front side of the rear mold core 3, and a sliding plate 9 is respectively connected to the inward side of the split slider 8, and the two sliding plates 9 are combined with each other at the rear. On the outer periphery of the die insert 6, each half-sliding slide block 8 is also provided with an oblique guide hole obliquely respectively;

The ejector plate 11 is arranged in the bottom plate 1 and is connected with the ejector rod (not shown in the figure) of the injection molding machine, and also has a push plate 12 between the sliding plate 9 and the rear mold core 3, and the push plate 12 is connected by a reset rod Thimble plate 11;

The front mold includes a mold base 13, a plastic injection component installed in the mold base 13, and inclined guide posts 10 in number and position opposite to the inclined guide holes. When the rear mold is separated, the two half-sliding sliders 8 are horizontally separated in opposite directions through the matching inclined guide posts 10 and the inclined guide holes;

In addition, the cavity is formed by the shovel base 5, the inner slider 7, the sliding plate 9 and the cavity on the front mold.

In a specific application, after the injection molding is completed, the front mold is first separated from the rear mold forward, and under the action of the inclined guide column 10, the two half-sliding sliders 8 and the sliders are driven to slide outwards away from each other, so that the outer side of the finished product is slid away. A circle of core pulling action; then the back mold core 3, the back mold insert 6 and the back mold insert fixing plate 2 are pushed forward under the action of the built-in oil cylinder 4. Since the shovel base 5 is fixed to the bottom plate 1, there is no Therefore, the inner slider 7 will slide inward along the dovetail groove on the shovel base 5, so that the inner step of the product completes the core pulling; finally, the push plate 12 moves forward under the action of the ejector stick and the ejector plate 11 of the injection molding machine. The inner button position of the product is demolded, so as to realize the whole mold opening action.

Based on the above technical solutions, the anti-theft paper-plastic cover mold includes a front mold and a rear mold. The front mold includes a mold base 13, an injection molding component, and an inclined guide column 10. The rear mold includes a bottom plate 1, a shovel base 5, and a rear mold insert fixing plate 2. , Rear mold core 3, rear mold insert 6, inner slider 7, ejector plate 11, push plate 12, so that the core pulling action of the outer ring and the ejecting action of the product do not interfere with each other, effectively reducing the damage of mold parts and the high maintenance rate. , The problem of shortening the life of the mold, and the core pulling action of the outer ring is faster than the ejecting action of the inclined top, which can effectively improve the production efficiency.

In a preferred embodiment, the number of dovetail grooves is four evenly arranged at the front end of the shovel base 5 . Further, the outer periphery of the rear mold insert 6 is circular as a whole, and the side of the sliding plate 9 facing the rear mold insert 6 has a semicircular groove that is in close contact with the outer periphery of the rear mold insert 6 . Further, the side of the sliding plate 9 connected to the split slider 8 has a T-shaped connector, and the inward side of the split slider 8 has a T-shaped groove matched with the T-shaped connector.

In addition, the rear mold insert fixing plate 2 and the rear mold insert 6 both have through holes for passing through the shovel base 5, and a rail groove structure is provided between the split slider 8 and the rear mold core 3 to realize the opposite sliding purpose.

In addition, as shown in FIG. 6 and FIG. 7 , the anti-theft buckle paper-plastic cover product includes a cover body 14 with upper and lower openings, an anti-theft buckle 15 connected to the lower part of the cover body 14 by a plurality of point ribs 16 . The cardboard 17 is formed on the upper part of the cover body 14 . The upper part of the cover body 14 is formed with a skirt 18 and a surrounding edge 19 arranged up and down. Correspondingly, the cavity of the front mold also has a mounting table for adsorbing the cardboard 17, and the mold of the front mold is provided with vacuum equipment that is connected to a number of vacuum through holes opened on the mounting table, so as to assist in the mechanical hand. Next, the cardboard 17 is adsorbed on the mounting table and then the action of overmolding is performed.

Example two,

The mold-opening method that the present embodiment provides is based on the anti-theft paper plastic cover mold in the above-mentioned embodiment one, and the mold-opening method includes:

Step 1, the front mold is separated forward relative to the rear mold, and under the action of the inclined guide column 10, the two half-sliding sliders 8 and the sliders are driven to slide outwards away from each other;

Step 2, the rear mold core 3, the rear mold insert 6 and the rear mold insert fixing plate 2 are pushed forward under the action of the built-in oil cylinder 4, and the inner slider 7 will slide inward along the dovetail groove on the shovel base 5, and Complete the core-pulling action at the inner steps of the product;

In step 3, the push plate 12 moves forward under the action of the ejector pin and the ejector pin plate 11 of the injection molding machine and releases the product from the inner buckle position.

The above descriptions are only preferred embodiments of the present invention, which are merely illustrative rather than restrictive for the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all fall within the protection scope of the present invention.

Claims (4)

1. An anti-theft paper plastic cover mold, comprising a front mold and a back mold that matches, and between the front mold and the back mold, constitute a cavity for forming the anti-theft paper plastic cover product, it is characterized in that, The back mold includes: bottom plate (1); A shovel base (5) is fixedly connected to the front end of the bottom plate (1) and extends forward, and the front end of the shovel base (5) has a plurality of dovetail grooves inclined inward; The rear mold insert fixing plate (2) is located at the front end of the bottom plate (1), and at least one built-in oil cylinder (4) is fixed horizontally on the bottom plate (1), and the output shaft of the built-in oil cylinder (4) is fixed Connect the rear mold insert fixing plate (2) to push the rear mold insert fixing plate (2) forward; The rear mold core (3) is installed on the front side of the rear mold insert fixing plate (2); The rear mold insert (6) has a through hole in the middle for passing through the shovel base (5), and the rear end of the rear mold insert (6) is fastened to the rear mold insert fixing plate (2) ); There are the same number of inner sliders (7) as the dovetail grooves, and each of the inner sliders (7) is respectively slidable along the dovetail groove and assembled on the front end of the shovel base (5); Two oppositely arranged split sliders (8) are respectively arranged on the front side of the rear mold core (3), and a sliding plate (9) is respectively connected to the inward side of the split sliders (8). ), and the two sliding plates (9) are mutually spliced on the outer periphery of the rear mold insert (6), and an oblique guide hole is respectively provided on each of the half-sliding sliders (8); The ejector plate (11) is arranged in the bottom plate (1) and connected with the ejector bar of the injection molding machine, and also has a push plate (12) between the sliding plate (9) and the rear mold core (3), and The push plate (12) is connected to the ejector plate (11) through a reset rod; The front mold comprises a mold base (13), a glue injection component installed in the mold base (13), and inclined guide posts (10) in equal numbers and positions opposite to the inclined guide holes. (10) is installed at the rear end of the mold frame (13), and is used to drive the two halves through the matching inclined guide post (10) and the inclined guide hole when the front mold is separated from the rear mold The sliders (8) are horizontally separated in opposite directions; In addition, the cavity is formed by the shovel base (5), the inner slider (7), the sliding plate (9) and the cavity on the front mold. 2 . The anti-theft paper-plastic cover mold according to claim 1 , wherein the number of the dovetail grooves is four evenly arranged at the front end of the shovel base ( 5 ). 3 . 3. The anti-theft paper-plastic cover mold according to claim 1, characterized in that, the side of the sliding plate (9) facing the rear mold insert (6) has the same pattern as the rear mold insert (6). 6) The semicircular groove that is close to the outer circumference. 4. The anti-theft paper-plastic cover mold according to claim 1, wherein the side of the sliding plate (9) connected to the half-sliding slider (8) has a T-shaped connector, and the half-sliding slider (8) has a T-shaped connector. The inward side of the sliding block (8) has a T-shaped groove matched with the T-shaped connector.

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