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Engineering plastic pulverizing device and control method thereof

A crushing device and technology of engineering plastics, applied in chemical instruments and methods, mixers with rotating stirring devices, transportation and packaging, etc., can solve the problem of classification of beads with different diameters, complicated operation of pre-expanding machines, and impact on beads Problems such as foaming effect and foaming ability to achieve the effect of improving the effect

Inactive Publication Date: 2018-09-25
甘春勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The final density of the number of cells is controlled by the heating temperature and heating time. At present, the pre-expansion process is mainly completed by the pre-expansion machine. The operation of the pre-expansion machine is complicated, and it cannot be accurately weighed when feeding the pre-expansion machine The weight of the beads put into the machine, and the beads of different diameters cannot be sorted before foaming. If beads of different diameters are mixed for pre-foaming, this will affect the foaming effect and foaming ability of the beads

Method used

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  • Engineering plastic pulverizing device and control method thereof
  • Engineering plastic pulverizing device and control method thereof
  • Engineering plastic pulverizing device and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Such as figure 1 , figure 2 and image 3 As shown, the present embodiment provides an EPS mixing device, which includes a device body 110, a feed pipe 111 is arranged above the device body 110, a baffle 112 is arranged inside the device body 110, and the baffle 112 divides the inside of the device body 110 Separated into a first treatment tank 1131 and a second treatment tank 1132, the first treatment tank 1131 is vertically provided with a plurality of support rods 120, and the plurality of support rods 120 are provided with rubber springs 121, and the plurality of support rods 120 An inclined sieve plate 130 is arranged above, and the sieve plate 130 is located below the feed pipe 111 and one end of the sieve plate 130 is aligned with the second treatment tank 1132; an eccentric wheel 150 for vibrating the sieve plate 130 is also provided in the first treatment tank 1131 , the eccentric wheel 150 is pierced with a drive shaft 160, the two ends of the drive shaft 16...

Embodiment 2

[0121] Such as Figure 4 , Figure 5 and Figure 6 As shown, the present embodiment provides an EPS particle feeding device, which includes a device body 110, a feed pipe 111 is provided above the device body 110, a mounting plate 210 is provided above the feed pipe 111, and a user is provided below the mounting plate 210. For the pressure sensor 240 for measuring the pressure, the pressure sensor 240 is installed on the device body 110; the mounting plate 210 is provided with a through hole corresponding to the feed pipe 111 up and down, and the feed hopper 230 is arranged in the through hole, and the feed hopper 230 has a rectangular section, and the top of the feed hopper 230 can be opened and the bottom can be closed. The feed hopper 230 is divided into a left hopper 231a and a right hopper 231b. The lower right edges of the hopper 231b are respectively rotatably connected to the side walls of the through hole.

[0122] Beads can enter the device body 110 from the feed ...

Embodiment 3

[0138] This embodiment provides a method for preparing an EPS foam packaging box, comprising the steps above:

[0139] 1. Control the third motor 250 so that the upper part of the feeding hopper 230 is in an open state, and the lower part of the blocking device 232 is a closed device;

[0140] 2. Keep the pressure sensor 240 in a working state, and make the display that cooperates with the pressure sensor 240 display a weight of 0;

[0141] 3. Add polystyrene beads containing foaming agent from the feed hopper 230, then check the weight from the display, and then increase or decrease the beads to make the weight reach a predetermined value;

[0142] 4. Turn on the first motor 161 to vibrate the sieve plate 130;

[0143] 5. Control the third motor 250 so that the top of the feed hopper 230 is in a closed state, and the bottom of the stopper device 232 is in an open state. At this time, the beads fall from the feed pipe 111 into the device body 110, and the polystyrene beads fa...

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Abstract

The invention relates to the technical field of plastic production, in particular to an engineering plastic pulverizing device and a control method thereof. A feed pipe is arranged above a device body, a baffle is arranged in the device body and divides interior of the device body into a first processing tank and a second processing tank, a plurality of support rods are vertically arranged in thefirst processing tank and are provided with rubber springs, an inclined sieve plate is arranged above the plurality of support rods and below the feeding pipe, and one end of each sieve plate is aligned to the second processing tank; an eccentric gear for vibrating the sieve plates is arranged in the first processing tank, the bottom end of the eccentric gear is located at the bottom of the firstprocessing tank, a drive shaft is arranged in the eccentric gear in a penetrating manner, a first pulverizing blade sleeves on the drive shaft, both ends of the drive shaft are mounted on the device body and the drive shaft is driven by a first motor; and a pulverizing device is arranged in the second processing tank. The engineering plastic pulverizing device can be used for screening and then separately pulverizing particles, so as to improve the pulverization effect.

Description

technical field [0001] The invention relates to the technical field of plastic production, in particular to an engineering plastic crushing device and a control method thereof. Background technique [0002] Polystyrene foam, referred to as EPS, is formed by foaming polystyrene particles, which mainly contain polystyrene, soluble pentane expansion components and fire retardant. During the molding process of EPS, the pentane in polystyrene particles is heated and vaporized, and expands in the particles to form many closed cavities. This uniform closed cavity structure determines that EPS has many characteristics that other materials do not have. [0003] The raw material beads are softened when heated to above 92°C by steam in a continuous or batch pre-expansion machine, and the volume of the blowing agent volatilizes and dissipates slowly expands to the required ratio or gram weight. Stable magnification is the guarantee of living and fixed molding conditions, so that the mo...

Claims

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Application Information

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IPC IPC(8): B02C23/08B02C18/10B07B1/28B07B1/42B01F7/04
CPCB02C18/10B02C23/08B07B1/28B07B1/42B01F27/70
Inventor 甘春勇王谊
Owner 甘春勇
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