CN112372994A

CN112372994A - Thermoforming equipment of inferior gram force panel

Info

Publication number: CN112372994A
Application number: CN202011140614.1A
Authority: CN
Inventors: 陈玉宏; 徐正青; 李小华
Original assignee: Anhui Meigao Meigao Molecular Materials Co ltd
Current assignee: Anhui Meigao Meigao Molecular Materials Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-02-19

Abstract

The invention discloses thermoforming equipment for acrylic sheets, which comprises a blister mould, wherein the blister mould comprises a mould cavity and a forming male mould arranged in the mould cavity, the upper part of the mould cavity is provided with a cooling cavity, the cooling cavity comprises a cooling cavity and a pressure plate in surface contact with the upper surface of the mould cavity, and the cooling cavity is connected with a cold air device and a first lifting device; according to the thermoforming equipment for the acrylic sheet, the cooling cavity and the air cooling device are arranged, so that a formed product is rapidly cooled, the production efficiency and the product quality are improved, and the product deformation and the like caused by insufficient cooling and shaping are avoided; realize automatic feed and ejection of compact through setting up feeding device, improve production efficiency, reduce intensity of labour.

Description

Thermoforming equipment of inferior gram force panel

Technical Field

The invention belongs to the field of acrylic sheet production equipment, and particularly relates to thermoforming equipment for an acrylic sheet.

Background

Acrylic plates, which belong to polyacrylates, are commonly called organic glass subjected to special treatment, and acrylic raw materials in the application industry generally appear in the forms of particles, plates, pipes and the like. Acrylic is also called special processing organic glass, is an organic glass replacement product, acrylic plates can be perfectly combined with aluminum-plastic plate profiles, high-grade screen printing and the like, the requirements of merchants are met, acrylic plastic suction is an outdoor advertising form for improving the grade of business storefronts and unifying the best image of enterprises, and in addition, acrylic is also used for manufacturing lamp boxes and the like. Acrylic sheet material as a new type of sheet material is gradually playing an important role in people's daily life.

With the development and progress of the acrylic sheet production technology, acrylic sheets are gradually developed from general flat sheets into various structures such as shapes, structures, appearances and the like, and are molded by a thermoforming mold. In the prior art, the plastic suction mould is mostly adopted for forming the acrylic plate, but after the plastic suction mould in the prior art is formed, the cooling time is long, and the problems of deformation and the like caused by discharging when a product is not completely cooled and shaped easily occur.

Disclosure of Invention

The invention aims to provide thermoforming equipment for acrylic sheets, which is short in cooling time, realizes automatic feeding and discharging, and improves the production efficiency and the product quality.

The thermal forming equipment for the acrylic sheet comprises a plastic suction mold, wherein the plastic suction mold comprises a mold cavity and a forming male mold arranged in the mold cavity, a cooling cavity is arranged at the upper part of the mold cavity and comprises a cooling cavity and a pressure plate contacted with the upper surface of the mold cavity, and a cold air device and a first lifting device are connected to the cooling cavity.

Preferably, the cooling cavity is a cover body with a downward opening, the opening of the cover body is adapted to the opening of the mold cavity, and the pressure plate and the cover body are integrally connected and arranged at the opening of the cover body.

Preferably, the air conditioning device comprises an air inlet and an air outlet which are arranged on the cooling cavity, wherein an air tap is arranged on the inner side of the air inlet and faces the inner top surface of the cooling cavity; the first lifting device comprises a first air cylinder connected to the top of the cooling cavity.

Preferably, the die cavity comprises a cavity with an upward opening, downward outer steps are arranged around the outer side of the opening of the cavity of the die cavity, and a material conveying device is arranged on the outer steps; the inner side of the opening of the cavity is provided with a downward inner step, the inner step is detachably provided with a limiting shoulder, and the limiting shoulder is used for limiting the stroke of the forming male die.

Preferably, the material conveying device comprises a first conveying wheel set arranged at the feeding end of the die cavity and a second conveying wheel set arranged on outer steps on two sides of the die cavity, and the second conveying wheel set is arranged on the outer side of the pressure plate.

Preferably, be connected with vacuum apparatus on the shaping terrace die, vacuum apparatus is including setting up two vacuum gas pockets on the shaping terrace die, setting up the evacuation hole on the die cavity bottom surface, be connected with vacuum equipment on the evacuation hole, there is second elevating gear bottom on the shaping terrace die, second elevating gear includes the second cylinder, the cylinder push rod of second cylinder gets into the die cavity quilt and is fixed with the shaping terrace die by the evacuation hole, be provided with the sealing washer on the cylinder push rod of second cylinder, the sealing washer seals evacuation hole and cylinder push rod junction after the shaping.

The thermoforming equipment for the acrylic sheet material has the beneficial effects that:

1. through setting up cooling cavity and air conditioning device, realize cooling off fast the product after the shaping, improve production efficiency and product quality, avoid because of the not enough product deformation that leads to of cooling design etc..

2. Realize automatic feed and ejection of compact through setting up feeding device, improve production efficiency, reduce intensity of labour.

Drawings

FIG. 1 is a schematic structural diagram of a thermoforming apparatus for acrylic sheet according to the present invention,

FIG. 2 is a schematic view of the thermal forming equipment for acrylic sheets according to the present invention in a state where the sheets are placed during the forming process,

figure 3 is a top view of figure 2,

fig. 4 is a schematic view of a mold cavity structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

As shown in the figure, the thermal forming equipment for the acrylic sheet comprises a plastic suction mold, wherein the plastic suction mold comprises a mold cavity 1 and a forming male mold 2 arranged in the mold cavity 1, and a cooling cavity 3 is arranged at the upper part of the mold cavity 1. The cooling cavity 3 includes a cooling cavity 31 and a pressure plate 32 in contact with the upper surface of the mold cavity 1. The cooling cavity 31 is connected with a cold air device and a first lifting device 36.

Based on the technical scheme, the acrylic sheet plastic suction forming process is as follows: the molding male die 2 descends into the die cavity 1, and the heated plate raw material enters the die cavity 1 and enters a to-be-molded state; then the first lifting device 36 drives the cooling cavity 3 to descend, and the pressure plate 32 on the cooling cavity 3 compresses the edge of the heated plate raw material; and then, the forming convex die 2 rises to the designated height, and then the forming convex die is vacuumized, so that the heated plate raw material is adsorbed on the forming convex die 2 for forming. After the molding, the cold air enters the cooling cavity 3 to cool the product 10 on the molding male die 2, and after the cooling is completed, the first lifting device 36 drives the cooling cavity 3 to ascend, and finally the product is discharged.

In the technical scheme, the cooling cavity 3 is arranged, so that the acrylic plate product is cooled, the cooling time is shortened, and the forming efficiency is improved.

As shown in fig. 1, the cooling cavity 31 is a cover with a downward opening, the mouth of the cover is adapted to the mouth of the mold cavity 1, and the pressing plate 32 is integrally connected to the cover and disposed at the mouth of the cover. Air conditioning device is including setting up air inlet 33 and the gas vent 35 on cooling cavity 31, air inlet 33 inboard is provided with air cock 34, air cock 34 sets up towards cooling cavity 31 internal top surface, avoids gaseous or high atmospheric pressure direct action on the fashioned product and influences the surface quality of product. The first lifting device 36 comprises a first cylinder connected to the top of the cooling chamber 31.

As shown in fig. 1 to 4, the mold cavity 1 includes a cavity 11 with an upward opening, a downward outer step 14 is provided around the outer side of the opening of the cavity 11 of the mold cavity 1, and a feeding device 4 is provided on the outer step 14. The inner side of the opening of the cavity 11 is provided with a downward inner step 13, the inner step 13 is detachably provided with a limiting shoulder 12, and the limiting shoulder 12 is used for limiting the stroke of the forming male die 2. The design of the inner step 13 and the limit shoulder 12 realizes the limit on one hand and avoids the interference to the forming punch 2 during the installation on the other hand.

The material conveying device 4 comprises a first conveying wheel set 41 arranged at the feeding end of the die cavity 1 and a second conveying wheel set 42 arranged on the outer steps 14 on two sides of the die cavity 1, wherein the second conveying wheel set 42 is arranged on the outer side of the pressure plate 32, and automatic feeding or discharging is realized by conveying a formed product.

And the forming convex die 2 is connected with a vacuum device. The vacuum device comprises two vacuum air holes 21 arranged on the molding male die 2 and a vacuum hole 22 arranged on the bottom surface of the die cavity 1, and a vacuum device is connected to the vacuum hole 22. And a second lifting device is arranged at the upper bottom of the forming male die 2 and comprises a second air cylinder, and an air cylinder push rod 23 of the second air cylinder enters the die cavity from the vacuumizing hole 22 and is fixed with the forming male die 2. And a sealing ring 24 is arranged on a cylinder push rod 23 of the second cylinder, and the sealing ring 24 seals the connecting part of the vacuumizing hole 22 and the cylinder push rod 23 after molding.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides a thermoforming equipment of inferior gram force board, includes the plastic suction mould, its characterized in that, the plastic suction mould includes the die cavity and arranges the shaping terrace die of die cavity in, die cavity upper portion is provided with the cooling chamber, the cooling chamber including the cooling cavity and with die cavity upper surface contact's pressure flitch, be connected with air conditioning device and a elevating gear on the cooling cavity.

2. The apparatus for thermoforming acrylic sheet according to claim 1, wherein the cooling cavity is a cover body with a downward opening, the mouth of the cover body is adapted to the mouth of the mold cavity, and the pressing plate and the cover body are integrally connected to each other and disposed at the mouth of the cover body.

3. The thermoforming apparatus for acrylic sheets as claimed in claim 1, wherein the air cooling device comprises an air inlet and an air outlet disposed on the cooling cavity, the air inlet having an air nozzle disposed inside, the air nozzle being disposed toward the inner top surface of the cooling cavity; the first lifting device comprises a first air cylinder connected to the top of the cooling cavity.

4. The apparatus for thermoforming acrylic sheet as claimed in claim 1, wherein the mold cavity comprises a cavity with an upward opening, and a downward outer step is provided around the outside of the opening of the cavity, and the outer step is provided with a feeding device; the inner side of the opening of the cavity is provided with a downward inner step, the inner step is detachably provided with a limiting shoulder, and the limiting shoulder is used for limiting the stroke of the forming male die.

5. The apparatus for thermoforming acrylic sheet according to claim 4, wherein the feeding device comprises a first feeding wheel set disposed at the feeding end of the mold cavity and a second feeding wheel set disposed on the outer steps at both sides of the mold cavity, the second feeding wheel set being disposed outside the nip plate.

6. The thermoforming equipment for acrylic sheets as claimed in claim 1, wherein a vacuum device is connected to the forming male die, the vacuum device comprises two vacuum air holes arranged on the forming male die and a vacuum hole arranged on the bottom surface of the die cavity, the vacuum hole is connected with a vacuum device, a second lifting device is arranged at the bottom of the forming male die, the second lifting device comprises a second cylinder, a cylinder push rod of the second cylinder enters the die cavity from the vacuum hole and is fixed with the forming male die, a sealing ring is arranged on a cylinder push rod of the second cylinder, and the sealing ring seals the connection part of the vacuum hole and the cylinder push rod after forming.