CN217802762U

CN217802762U - Pneumatic type two-stage mold thimble

Info

Publication number: CN217802762U
Application number: CN202221941868.8U
Authority: CN
Inventors: 刘飞乐
Original assignee: Heping Guanhua Precision Mould Co ltd
Current assignee: Heping Guanhua Precision Mould Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-15
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a pneumatic two-section mould thimble, which comprises a main sleeve, wherein a middle air inlet pipe is fixedly penetrated at the bottom of the main sleeve; the positioning bolt is arranged at the top of the outer wall of the main sleeve, and the top of the side pneumatic mechanism is connected with the tail end of the bottom surface of the horizontal plate; the thimble structure comprises a limiting hole, wherein an inner thimble is arranged in the limiting hole, a second sealing ring is fixedly arranged at the edge of the bottom of the inner thimble, the second sealing ring is attached to the inner wall of the limiting hole, a reset spring is fixedly arranged at the top of the inner wall of the limiting hole, and the bottom of the inner thimble is fixedly arranged at the bottom of the reset spring. This pneumatic type two-stage mould thimble adopts neotype structural design, through pneumatic drive, makes the thimble advance in two stable segmentations for the thimble can stably promote the product and carry out the drawing of patterns, and guarantees that the product migration distance is enough, can break away from with the mould completely, and the product of being convenient for takes out, avoids the single to remove the overlength distance simultaneously and leads to the product to drop.

Description

Pneumatic type two-stage mold thimble

Technical Field

The utility model relates to a mould thimble technical field specifically is a pneumatic type two-stage segment mould thimble.

Background

The mold ejector pin is a common mold demolding accessory, also called a push rod or a middle needle, plays a very important role in a mold, and can stably eject a product out of a mold cavity of the mold, and common ejector pins include a flat ejector pin, a round ejector pin, a support needle and the like.

The existing mould ejector pin is driven by hydraulic pressure or pneumatic pressure, can only be pushed for one section, only pushes products to carry out displacement with fixed length, the stroke of the traditional ejector pin is fixed, the traditional ejector pin cannot adapt to continuously-changed novel products, and after the products are ejected out, the products still need to be manually shaken or loosened, and the demoulding products cannot be quickly taken out.

Therefore, a pneumatic two-stage mold thimble is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic type two-stage process mould thimble to solve at least one technical problem who exists among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pneumatic two-stage mold ejector pin, comprising:

the bottom of the main sleeve is fixedly provided with a middle air inlet pipe in a penetrating mode, a metal corrugated pipe is installed on the middle air inlet pipe, the top end of the middle air inlet pipe penetrates through the bottom end of the outer thimble and the bottom of a limiting hole, the limiting hole is formed in the top of the outer thimble, and the outer thimble is installed in the main sleeve;

the positioning bolt is arranged at the top of the outer wall of the main sleeve, the bottom of the outer wall of the main sleeve is provided with a side pneumatic mechanism, the top of the side pneumatic mechanism is connected with the tail end of the bottom surface of a horizontal plate, the horizontal plate penetrates through a track window, and the track window penetrates through the side of the main sleeve;

the thimble structure comprises a limiting hole, an inner thimble is installed in the limiting hole, a second sealing ring is fixedly installed at the edge of the bottom of the inner thimble, the second sealing ring is attached to the inner wall of the limiting hole, a reset spring is fixedly installed at the top of the inner wall of the limiting hole, and the bottom of the inner thimble is fixedly installed at the bottom of the reset spring.

Preferably, the outer thimble is in sliding connection with the main sleeve, and horizontal plates are symmetrically arranged on two sides of the bottom end of the outer thimble.

Preferably, the side pneumatic mechanism comprises a side air inlet pipe, a side sleeve and a first sealing ring, the side air inlet pipe is fixedly installed at the bottom of the outer wall of the main sleeve, the top of the side air inlet pipe is attached to the inner wall of the side sleeve, the bottom of the inner wall of the side sleeve is fixedly provided with the first sealing ring, the first sealing ring is attached to the outer wall of the side air inlet pipe, and the top end of the side sleeve is welded and fixed with the bottom surface of the horizontal plate.

Preferably, the side air inlet pipe is in sliding connection with the side sleeve, and first sealing rings are densely arranged at equal intervals at the bottom of the inner wall of the side sleeve.

Preferably, the horizontal plate is in sliding connection with the track window, and the length of the track window is smaller than the length of the joint part of the outer thimble and the main sleeve.

Preferably, interior thimble is sliding connection with spacing hole, and the just looking shape of interior thimble is the style of calligraphy of the line of "linking".

Preferably, the center of the inner thimble and the center of the return spring are positioned on the same vertical line, and the top surface of the inner thimble and the top surface of the outer thimble are positioned on the same plane.

Compared with the prior art, the beneficial effects of the utility model are that:

by adopting a novel structural design and pneumatic driving, the ejector pin can stably advance in two stages, so that the ejector pin can stably push a product to be demoulded, the moving distance of the product is enough, the product can be completely separated from a mould, the product can be conveniently taken out, and the product is prevented from falling off due to long distance of single movement;

1. the utility model can stably drive the outer thimble and the inner thimble to integrally perform stable first-stage displacement by mutually matching the main sleeve, the side air inlet pipe, the side sleeve, the first sealing ring, the horizontal plate and the track window, and can stably push out the product by performing large-area contact on the product, so that the product can be stably separated from the inner wall of the cavity;

2. the utility model discloses a well intake pipe, corrugated metal pipe, spacing hole, reset spring and second sealing washer work of mutually supporting, can drive in the thimble stable carry out the relative slip with outer thimble, the thimble can carry out the two-stage process ejecting in the order, breaks away from the product ejecting completely and mould, makes things convenient for taking out of product.

Drawings

Fig. 1 is a schematic view of the front view cross-section structure of the present invention.

Fig. 2 is a schematic view of the front view structure of the present invention.

Fig. 3 is a schematic view of the bottom cross-sectional structure of the side pneumatic mechanism, the horizontal plate and the track window of the present invention.

Fig. 4 is a schematic view of the overlooking section structure of the outer thimble and the limiting hole of the present invention.

In the figure: 1. a main sleeve; 2. a middle air inlet pipe; 3. a metal bellows; 4. an outer thimble; 5. positioning the bolt; 6. a side pneumatic mechanism; 601. a side intake pipe; 602. a side sleeve; 603. a first seal ring; 7. a horizontal plate; 8. a track window; 9. a limiting hole; 10. an inner thimble; 11. a return spring; 12. and a second seal ring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment of:

a pneumatic two-stage mold ejector pin, comprising:

the device comprises a main sleeve 1, wherein a middle air inlet pipe 2 is fixedly arranged at the bottom of the main sleeve 1 in a penetrating manner, a metal corrugated pipe 3 is arranged on the middle air inlet pipe 2, the top end of the middle air inlet pipe 2 penetrates through the bottom end of an outer thimble 4 and the bottom of a limiting hole 9, the limiting hole 9 is formed in the top of the outer thimble 4, the outer thimble 4 is arranged in the main sleeve 1, the outer thimble 4 is in sliding connection with the main sleeve 1, horizontal plates 7 are symmetrically arranged at two sides of the bottom end of the outer thimble 4, and the outer thimble 4 can drive the horizontal plates 7 to perform stable linear sliding displacement along the main sleeve 1 through the structural design;

the positioning bolt 5 is installed at the top of the outer wall of the main sleeve 1, the bottom of the outer wall of the main sleeve 1 is provided with a side pneumatic mechanism 6, the side pneumatic mechanism 6 comprises a side air inlet pipe 601, a side sleeve 602 and a first sealing ring 603, the side air inlet pipe 601 is fixedly installed at the bottom of the outer wall of the main sleeve 1, the top of the side air inlet pipe 601 is attached to the inner wall of the side sleeve 602, the bottom of the inner wall of the side sleeve 602 is fixedly provided with the first sealing ring 603, the first sealing ring 603 is attached to the outer wall of the side air inlet pipe 601, the top end of the side sleeve 602 is fixedly welded to the bottom surface of the horizontal plate 7, the structure design provides power for one section of the outer thimble 4 to be ejected out, the outer thimble 4 can stably slide out of the main sleeve 1, the top of the side pneumatic mechanism 6 is connected with the tail end of the bottom surface of the horizontal plate 7, the horizontal plate 7 penetrates through the track window 8, and the side of the main sleeve 1 is opened through the track window 8;

spacing hole 9, thimble 10 in installing in the spacing hole 9, thimble 10 bottom edge fixed mounting has second sealing washer 12 in, second sealing washer 12 and the laminating of spacing hole 9 inner wall, and spacing hole 9 inner wall top fixed mounting has reset spring 11, and thimble 10 bottom including reset spring 11 bottom fixed mounting.

In one embodiment, the side inlet pipe 601 is slidably connected to the side sleeve 602, and the first sealing rings 603 are densely installed at equal intervals at the bottom of the inner wall of the side sleeve 602, and the above-mentioned structural design ensures that after the gas is introduced into the side inlet pipe 601, the gas can push the side sleeve 602 to slide linearly and stably along the side inlet pipe 601.

In one preferred embodiment, the horizontal plate 7 is slidably connected to the track window 8, and the length of the track window 8 is smaller than the length of the portion of the outer thimble 4 attached to the main sleeve 1, so that the above-mentioned structural design ensures that the side sleeve 602, the horizontal plate 7, and the outer thimble 4 can perform stable linear sliding displacement, and ensures that the side sleeve 602 and the side air pipe 601 do not slip.

In one embodiment, the inner thimble 10 is slidably connected to the limiting hole 9, and the front view of the inner thimble 10 is shaped like a notch, and the above-mentioned structural design ensures that the inner thimble 10 can perform stable linear sliding displacement along the limiting hole 9 without slipping.

In a preferred embodiment, the center of the inner thimble 10 and the center of the return spring 11 are on the same vertical line, and the top surface of the inner thimble 10 and the top surface of the outer thimble 4 are on the same plane, the above structural design enables the inner thimble 10 to perform stable linear displacement, and when the outer thimble 4 performs a section of ejection, the inner thimble can be matched with the outer thimble 4 to stably contact with a product, so that the symmetrical product is stably ejected.

The utility model discloses a theory of operation does: when the device is used, the whole device is connected with a die through a positioning bolt 5, an outer thimble 4 is made to extend into an ejection hole of the die, the die can be normally used, the die is opened, when a product needs to be demoulded, gas is quickly pumped into a side sleeve 602 through an air pump connected to the bottom end of a side air inlet pipe 601 in the figure 1, the air pressure pushes the symmetrically-distributed side sleeve 602 to vertically move upwards, the side sleeve 602 pushes a horizontal plate 7 to drive the outer thimble 4 to vertically slide upwards along a track window 8, the outer thimble 4 quickly slides out from a central hole of a main sleeve 1, the outer thimble 4 stretches a metal corrugated pipe 3 when vertically sliding upwards, the top end of the outer thimble 4 extends out of the ejection hole, and the product is ejected in one section, so that the product is separated from the inner wall of a die cavity of the die;

until the top surface of the horizontal plate 7 contacts with the top surface of the inner side of the track window 8, controlling the air pump to stop supplying air for the side air inlet pipe 601, controlling the air pump to immediately supply air for the middle air inlet pipe 2, enabling the air to enter a space between the bottom surface of the inner side of the limiting hole 9 and the bottom surface of the inner thimble 10, enabling the inner thimble 10 to vertically slide out along the limiting hole 9 and compress the reset spring 11 under the sealing action of the second sealing ring 12, enabling the top end of the inner thimble 10 to be higher than the top end of the outer thimble 4, ejecting the product for two sections, enabling the product to be completely separated from the mold, and taking out the product when working;

and finally, stopping supplying air to the middle air inlet pipe 2, enabling the inner thimble 10 to slide downwards to reset under the action of the elastic force of the reset spring 11 and be accommodated in the limit hole 9, controlling an air pump to suck air in the side sleeve 602, reducing the air pressure in the side sleeve 602, driving the horizontal plate 7 and the outer thimble 4 to slide downwards to reset under the action of the air pressure by the side sleeve 602, compressing the metal corrugated pipe 3 to reset, resetting the whole device, and carrying out next mold production operation.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the schemes is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a pneumatic type two-section mould thimble which characterized in that, it includes:

the metal corrugated pipe structure comprises a main sleeve (1), wherein a middle air inlet pipe (2) penetrates through and is fixed at the bottom of the main sleeve (1), a metal corrugated pipe (3) is installed on the middle air inlet pipe (2), the top end of the middle air inlet pipe (2) penetrates through the bottom end of an outer thimble (4) and the bottom of a limiting hole (9), the limiting hole (9) is formed in the top of the outer thimble (4), and the outer thimble (4) is installed in the main sleeve (1);

the positioning bolt (5) is installed at the top of the outer wall of the main sleeve (1), a side pneumatic mechanism (6) is arranged at the bottom of the outer wall of the main sleeve (1), the top of the side pneumatic mechanism (6) is connected with the tail end of the bottom surface of a horizontal plate (7), the horizontal plate (7) penetrates through a track window (8), and the track window (8) penetrates through the side of the main sleeve (1);

spacing hole (9), thimble (10) in installing in spacing hole (9), interior thimble (10) bottom edge fixed mounting has second sealing washer (12), second sealing washer (12) and spacing hole (9) inner wall laminating, thimble (10) bottom including spacing hole (9) inner wall top fixed mounting has reset spring (11), reset spring (11) bottom fixed mounting.

2. The ejector pin of claim 1, wherein: the outer thimble (4) is in sliding connection with the main sleeve (1), and horizontal plates (7) are symmetrically arranged on two sides of the bottom end of the outer thimble (4).

3. The ejector pin of claim 1, wherein: pneumatic mechanism (6) of side is including side trachea (601), side sleeve (602) and first sealing washer (603), and side trachea (601) fixed mounting is in main sleeve (1) outer wall bottom to side trachea (601) top and the laminating of side sleeve (602) inner wall, and side sleeve (602) inner wall bottom fixed mounting has first sealing washer (603) simultaneously, first sealing washer (603) and the laminating of side trachea (601) outer wall, side sleeve (602) top and horizontal plate (7) bottom surface welded fastening.

4. The pneumatic two-section mold ejector pin according to claim 3, wherein: the side air inlet pipe (601) is in sliding connection with the side sleeve (602), and first sealing rings (603) are densely arranged at the bottom of the inner wall of the side sleeve (602) at equal intervals.

5. The pneumatic two-section mold ejector pin according to claim 1, wherein: the horizontal plate (7) is in sliding connection with the track window (8), and the length of the track window (8) is smaller than the length of the joint part of the outer thimble (4) and the main sleeve (1).

6. The pneumatic two-section mold ejector pin according to claim 1, wherein: the inner thimble (10) is in sliding connection with the limiting hole (9), and the front view shape of the inner thimble (10) is in a shape like a Chinese character 'jieli'.

7. The pneumatic two-section mold ejector pin according to claim 1, wherein: the center of the inner thimble (10) and the center of the reset spring (11) are positioned on the same vertical line, and the top surface of the inner thimble (10) and the top surface of the outer thimble (4) are positioned on the same plane.