CN110966484B

CN110966484B - Hollow plastic plate and manufacturing method thereof

Info

Publication number: CN110966484B
Application number: CN201911163163.0A
Authority: CN
Inventors: 蒲芷荣; 毛小莲; 段承度; 蒲斌
Original assignee: Hunan Yuansu Pipe Co ltd
Current assignee: Hunan Yuansu Pipe Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-04-02
Anticipated expiration: 2039-11-25
Also published as: CN110966484A

Abstract

The invention discloses a hollow plastic plate and a manufacturing method thereof. The invention can quickly place materials with set proportion into the mixing device, adopts gas mixing, has good mixing effect and quick mixing, and greatly improves the mixing time. The middle part of the plate contains a plurality of hollow micro-bubbles, so that the weight of the plate is reduced, and the hole walls among the bubbles form a zigzag structure, namely the length of the plate is increased, so that the plate has better heat preservation and insulation capacity, a large hollow connecting structure is dispersed into a more uniform hollow structure, and the uniformity of the bearing pressure of the plate is increased.

Description

Hollow plastic plate and manufacturing method thereof

Technical Field

The invention belongs to the field of materials, and particularly relates to a method for manufacturing a hollow plastic plate.

Background

When the existing hollow plastic plate is generally manufactured and formed, a rod-shaped mold is inserted into the plate, and a hollow through hole is formed after the plastic is cooled and solidified, so that the plastic consumption and the product weight are reduced, and meanwhile, the hollow through hole plays a role in heat preservation and heat insulation. However, there is a problem in that the through hole is a weak point for bearing stress of the plate material because the hollow point is a through hole communicating with the outside. In addition, as the wall of the through hole at the adjacent position of the through hole forms a heat conduction path which is very short, the heat can be easily led out, and the heat preservation and insulation capacity of the heat conduction path is reduced. For this reason, a new hollow plastic panel is required.

Disclosure of Invention

The invention provides a method for manufacturing a hollow plastic plate to solve the problems. The middle part of the plate contains a plurality of hollow micro-bubbles, so that the weight of the plate is reduced, and the hole walls among the bubbles form a zigzag structure, namely the length of the plate is increased, so that the plate has better heat preservation and insulation capacity, a large hollow connecting structure is dispersed into a more uniform hollow structure, and the uniformity of the bearing pressure of the plate is increased.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a hollow plastic plate comprises a hollow plate in the middle, a plurality of disordered bubbles are formed in the hollow plate, and solid plates are fixed on the top surface and the bottom surface of the hollow plate.

In a further improvement, the hollow plate and the solid plate are adhered and fixed.

A method for manufacturing a hollow plastic plate comprises the following steps:

firstly, putting raw materials of a plastic plate into a heating and melting device; the heating and melting device comprises a shell, the bottom of the shell is an electric heating base, a sealing plate is fixed at the bottom of the electric heating base, and an air cavity is formed between the sealing plate and the electric heating base; a plurality of micropores for communicating the shell with the air cavity are formed on the electric heating base; the air cavity is communicated with an air pump and an air valve through an air pipe; a feed port is formed at the top of the shell, a discharge port is formed at the bottom of the shell, valves are formed on the feed port and the discharge port, and a stirring structure is arranged in the shell; an ultrasonic vibrator is arranged outside the shell;

step two, heating the electric heating base to melt the raw materials, and then ventilating for 10-30min by an air pump; simultaneously, the stirring structure starts stirring; the ultrasonic vibrator is started up and the ultrasonic vibrator is started up,

step three, closing the air valve, stopping ventilation of the air pump, and continuously vibrating the ultrasonic vibrator for 2-3 min;

pouring the molten raw materials into a template to manufacture a hollow plate, and opening an air valve and an air pump after the raw materials are poured to prevent micropores from being blocked;

and step five, adhering and fixing solid plates on the upper surface and the lower surface of the hollow plate to prepare the hollow plastic plate.

The improved stirring structure comprises a stirring shaft, wherein a stirring blade is fixed on the stirring shaft, and the stirring shaft is connected with a rotating motor.

In a further improvement, the ultrasonic frequency of the ultrasonic vibrator is 15 MHz.

In a further improvement, the diameter of the micropores is less than 0.1 mm.

Drawings

FIG. 1 is a schematic structural diagram of a hollow plastic plate;

fig. 2 is a schematic structural view of the heating and melting apparatus.

Detailed Description

Example 1

A hollow plastic plate comprises a hollow plate 1 in the middle, a plurality of disordered bubbles 2 are formed in the hollow plate 1, and solid plates 3 are fixed on the top surface and the bottom surface of the hollow plate 1. The hollow plate 1 and the solid plate 3 are adhered and fixed.

The manufacturing method of the hollow plastic plate comprises the following steps:

firstly, putting raw materials of a plastic plate into a heating and melting device 4; the heating and melting device 4 comprises a shell 5, an electric heating base 6 is arranged at the bottom of the shell 5, a sealing plate 7 is fixed at the bottom of the electric heating base 6, and an air cavity 8 is formed between the sealing plate 7 and the electric heating base 6; a plurality of micropores 9 for communicating the shell 5 with the air cavity 8 are formed on the electric heating base 6; the air cavity 8 is communicated with an air pump 11 and an air valve 17 through an air pipe 10; a feeding hole 12 is formed in the top of the shell 5, a discharging hole 13 is formed in the bottom of the shell, valves 14 are formed on the feeding hole 12 and the discharging hole 13, and a stirring structure 15 is installed in the shell 5; an ultrasonic vibrator 16 is arranged outside the shell 5;

step two, heating the electric heating base 6 to melt the raw materials, and then ventilating the air pump 11 for 10-30 min; simultaneously, the stirring structure 15 starts stirring; the ultrasonic vibrator 16 is activated and,

step three, closing the air valve 17, stopping ventilation of the air pump 11, and continuing vibration of the ultrasonic vibrator 16 for 2-3 min;

pouring the molten raw materials into a template to manufacture the hollow plate 1, and opening the air valve 17 and the air pump 11 after pouring the raw materials to prevent micropores from being blocked;

and step five, adhering and fixing solid plates 3 on the upper surface and the lower surface of the hollow plate 1 to prepare the hollow plastic plate.

The stirring structure 15 comprises a stirring shaft 18, a stirring blade 19 is fixed on the stirring shaft 18, and the stirring shaft 18 is connected with a rotating motor 20. The ultrasonic frequency of the ultrasonic vibrator 16 is 15 MHz. The diameter of the micropores 9 is less than 0.1 mm.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The manufacturing method of the hollow plastic plate is characterized by comprising the following steps of:

firstly, putting raw materials of a plastic plate into a heating and melting device (4); the heating and melting device (4) comprises a shell (5), an electric heating base (6) is arranged at the bottom of the shell (5), a sealing plate (7) is fixed at the bottom of the electric heating base (6), and an air cavity (8) is formed between the sealing plate (7) and the electric heating base (6); a plurality of micropores (9) for communicating the shell (5) with the air cavity (8) are formed on the electric heating base (6); the air cavity (8) is communicated with an air pump (11) and an air valve (17) through an air pipe (10); a feed inlet (12) is formed at the top of the shell (5), a discharge outlet (13) is formed at the bottom of the shell, valves (14) are formed on the feed inlet (12) and the discharge outlet (13), and a stirring structure (15) is installed in the shell (5); an ultrasonic vibrator (16) is arranged outside the shell (5);

step two, heating the electric heating base (6) to melt the raw materials, and then ventilating the air pump (11) for 10-30 min; simultaneously, the stirring structure (15) starts stirring; the ultrasonic vibrator (16) is started up,

step three, closing the air valve (17), stopping ventilation of the air pump (11), and continuing vibration of the ultrasonic vibrator (16) for 2-3 min;

pouring the molten raw materials into a template to manufacture the hollow plate (1), and opening a rear air valve (17) and an air pump (11) to prevent micropores from being blocked;

and fifthly, sticking and fixing solid plates (3) on the upper surface and the lower surface of the hollow plate (1) to prepare the hollow plastic plate.

2. The method for manufacturing the hollow plastic plate according to claim 1, wherein the stirring structure (15) comprises a stirring shaft (18), stirring blades (19) are fixed on the stirring shaft (18), and the stirring shaft (18) is connected with a rotating motor (20).

3. The method of manufacturing a hollow plastic panel according to claim 1, wherein the ultrasonic frequency of the ultrasonic vibrator (16) is 15 MHz.

4. A method for making a hollow plastic panel as claimed in claim 1, characterized in that said holes (9) have a diameter of less than 0.1 mm.