CN216001405U

CN216001405U - Positive and negative pressure upper die for auxiliary forming of air cylinder

Info

Publication number: CN216001405U
Application number: CN202121748086.8U
Authority: CN
Inventors: 刘阳
Original assignee: Kunshan Yueda Electronics Co ltd
Current assignee: Kunshan Yueda Electronics Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-11
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of plastic suction molds, in particular to a positive and negative upper mold for cylinder-assisted molding, which comprises a mold pressing plate, an upper mold box and a lower mold box, wherein the upper mold box and the lower mold box are respectively composed of a supporting plate and a sealing plate, the sealing plates are respectively arranged on the supporting plate, the upper mold box and the lower mold box are oppositely arranged to form a sealing cavity, the sealing plate of the upper mold box is contacted with the sealing plate of the lower mold box, a cylinder is arranged between the upper mold box and the lower mold box, one end of the cylinder is fixed on the supporting plate of the upper mold box, the mold pressing plate is fixed at the other end of the cylinder, a vacuum cavity is formed by mutually matching the upper mold box and the lower mold box, then molding processing is carried out on a mold, the molded thickness is more uniform, the molded mold is molded by the cylinder fixed in the upper mold box, the weight of the upper mold box is reduced, the power consumption of a machine is reduced, and the mold opening and closing amplitude is reduced at the same time, the molding time is shortened.

Description

Positive and negative pressure upper die for auxiliary forming of air cylinder

Technical Field

The utility model relates to the technical field of plastic suction molds, in particular to a positive and negative pressure upper mold for cylinder auxiliary forming.

Background

The plastic sucking machine is a machine for sucking the thermoplastic plastic coiled material plasticized by heating into products of various shapes, such as advanced packaging and decorating boxes, frames and the like, and the vacuum suction force generated by a vacuum pump is utilized to suck the thermoplastic plastic sheet softened by heating into vacuum covers, plastic sucking trays, foam shells and the like of various shapes through a mould.

The plastic suction forming die frame in the prior art generally adopts steel plate welding to support, when bearing higher atmospheric pressure, the steel sheet junction collapses open easily, leads to atmospheric pressure to leak, not only influences product quality, mould, framed life, still can produce the safety problem, moreover when handling the type product of moulding that the degree of depth is darker, on the one hand to opening the range of compound die great, on the other hand shaping time is slower, and the machine consumption is higher moreover, has increased the manufacturing cost of enterprise.

Therefore, a positive and negative pressure upper die for cylinder-assisted molding is required.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a positive and negative pressure upper die for cylinder-assisted molding, which is used to solve the problem of slow molding for deep-depth molding in the prior art.

In order to achieve the above and other related objects, the present invention provides a positive and negative upper die for cylinder assisted molding, which comprises a die pressing plate, an upper die box and a lower die box, wherein the upper die box and the lower die box are both composed of a supporting plate and a sealing plate, the sealing plate is arranged on the supporting plate, the upper die box and the lower die box are oppositely arranged to form a sealing cavity, the sealing plate of the upper die box is in contact with the sealing plate of the lower die box, a cylinder is arranged between the upper die box and the lower die box, one end of the cylinder is fixed on the supporting plate of the upper die box, and the other end of the cylinder is fixed with the die pressing plate.

In an embodiment of the present invention, a protrusion is disposed on a contact surface of the upper mold box sealing plate and the lower mold box sealing plate, and a groove matched with the protrusion is disposed on a contact surface of the lower mold box sealing plate and the upper mold box sealing plate.

In an embodiment of the present invention, the cylinder is disposed at a middle position of a lower end surface of the upper mold box supporting plate.

In an embodiment of the present invention, a mold support plate is further disposed in the lower mold box.

In an embodiment of the present invention, the corners of the bottom of the mold platen are arc-shaped.

In an embodiment of the present invention, the upper mold box sealing plate is disposed on a lower end surface of the upper mold box supporting plate, and the lower mold box sealing plate is disposed on an upper end surface of the lower mold box supporting plate.

As described above, the positive and negative pressure upper die for auxiliary forming of the cylinder has the following beneficial effects:

1. according to the utility model, the upper die box and the lower die box are mutually matched to form the vacuum cavity firstly and then carry out molding treatment on the die, so that the thickness of the molded die is more uniform after molding.

2. The molding die is molded through the air cylinder fixed in the upper die box, so that the weight of the upper die box is reduced, the power consumption of a machine is reduced, the die opening and closing amplitude is reduced, and the molding time is shortened.

Drawings

Fig. 1 is a schematic structural diagram of a positive and negative pressure upper die for cylinder assisted molding disclosed in the embodiment of the utility model.

Fig. 2 is a schematic structural diagram showing a pressing state of a positive-negative pressure upper die for cylinder-assisted molding disclosed in the embodiment of the utility model.

Fig. 3 shows a partially enlarged view of the symbol a in fig. 1.

Fig. 4 is a partially enlarged view of the symbol B in fig. 1.

Description of the element reference numerals

1-a mould press plate; 2, mounting a mold box; 3-lower a mold box; 4-upper mould box sealing plate; 5-sealing plate of lower mould box; 6-cylinder; 7-upper mold box supporting plate; 8-a groove; 9-bulge; 10-mold plate.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 4, the utility model provides a positive and negative pressure upper die for cylinder auxiliary forming, which comprises a die pressing plate 1, an upper die box 2 and a lower die box 3, wherein the upper die box 2 and the lower die box 3 are both composed of a supporting plate and a sealing plate, the sealing plate is arranged on the supporting plate, the upper die box 2 and the lower die box 3 are oppositely arranged to form a sealing cavity, the sealing plate 4 of the upper die box is in contact with the sealing plate 5 of the lower die box, a cylinder 6 is arranged between the upper die box 2 and the lower die box 3, one end of the cylinder 6 is fixed on a supporting plate 7 of the upper die box, and the other end of the cylinder 6 is fixed with the die pressing plate 1.

A bulge 9 is arranged on the contact surface of the upper die box sealing plate 4 and the lower die box sealing plate 5, and a groove 8 matched with the bulge 9 is arranged on the contact surface of the lower die box sealing plate 5 and the upper die box sealing plate 4; the die pressing plate 1 is arc-shaped in the bottom corners, the air cylinder 6 is arranged in the middle of the lower end face of the upper die box supporting plate 7, and the lower die box 3 is further internally provided with a die supporting plate 10.

According to the specific embodiment of the utility model, when a product with a deep depth needs to be subjected to die pressing treatment, a die needing to be subjected to die pressing treatment is placed in a surface to be pressed, the cylinder 6 is initially in a minimum telescopic state, then the upper die box 2 and the lower die box 3 are compacted, the protrusion 9 on the sealing plate 4 of the upper die box is matched with the groove 8 on the sealing plate 5 of the lower die box, a sealed cavity is formed between the upper die box 2 and the lower die box 3, the cylinder 6 drives the die pressing plate 8 to extrude the die, then the extruded die is subjected to negative pressure treatment by the vacuum rod in the lower die box 3 and is adsorbed on the inner surface of the lower die box 3, and the die is taken out after being cooled.

In summary, the upper and lower mold boxes are mutually matched to form the vacuum cavity first and then carry out molding processing on the mold, so that the molded thickness is more uniform, the mold is molded by the air cylinder fixed in the upper mold box, the weight of the upper mold box is reduced, the power consumption of a machine is reduced, the mold opening and closing amplitude is reduced, and the molding time is shortened. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a positive negative pressure upper die of cylinder assisted forming, includes the mould clamp plate, its characterized in that still includes die box and lower die box, go up die box and lower die box and constitute by backup pad and closing plate, the closing plate is all located in the backup pad, go up die box and lower die box and set up relatively and form the seal chamber, and go up the die box closing plate and contact with lower die box closing plate, go up and be equipped with the cylinder between die box and the lower die box, cylinder one end is fixed in last die box backup pad, is fixed with the mould clamp plate at the cylinder other end.

2. The positive and negative pressure upper die for cylinder assisted forming according to claim 1, wherein: the sealing structure is characterized in that a protrusion is arranged on the contact surface of the upper die box sealing plate and the lower die box sealing plate, and a groove matched with the protrusion is arranged on the contact surface of the lower die box sealing plate and the upper die box sealing plate.

3. The positive and negative pressure upper die for cylinder assisted forming according to claim 1, wherein: the cylinder is arranged in the middle of the lower end face of the upper die box supporting plate.

4. The positive and negative pressure upper die for cylinder assisted forming according to claim 1, wherein: and a mould supporting plate is also arranged in the lower mould box.

5. The positive and negative pressure upper die for cylinder assisted forming according to claim 4, wherein: the corners of the bottom of the die pressing plate are arranged in an arc shape.

6. The positive and negative pressure upper die for cylinder assisted forming according to claim 1, wherein: the upper die box sealing plate is arranged on the lower end face of the upper die box supporting plate, and the lower die box sealing plate is arranged on the upper end face of the lower die box supporting plate.