A method for quickly disassembling and assembling the screw of a twin-screw extruder
A twin-screw extrusion and screw-screw technology, which is applied in the field of quick disassembly and assembly of twin-screw extruder screws, can solve the problems of time-consuming, difficult to clean, manpower, material resources and time, and save time.
Inactive Publication Date: 2016-05-25
杭州迅塑高分子材料有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The problem with this method of operation is that the heavy screw is difficult to pull out, and it often requires the concerted efforts of four to five people, or even rough pulling, to forcibly pull out the screw, which consumes a lot of manpower, material resources and time, and it is not easy to pull out the screw. Cleaning, resulting in improper installation or difficult installation when rearranging the screw rods, which consumes a lot of time
[0003] The disadvantage of the above method is that it is easy to cause the screw to deform during the drawing process, making it difficult to install again
However, the special screw extraction equipment abroad is too expensive for ordinary small enterprises to bear.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0021] see figure 1 , a method for quick disassembly and assembly of twin-screw extruder screws according to the present invention, comprising the steps of:
[0022] (1) Before removing the screw, raise the temperature of the barrel to about 300 degrees Celsius;
[0023] (2) Rotate the screw, use PE material to clean the nylon material entrained by the PE remaining in the barrel last time, and then mix the lubricant ethylene bis stearic acid amide and linear low density polyethylene to clean the screw again, so that the screw is in the medium Run at a high speed for about 5 minutes to ensure that the lubricant penetrates to every position in the passage, and also ensures that the residual resin and washing materials in the barrel are completely removed.
[0024] (3) Stop the rotation of the screw, open the touch head of the extruder, and unscrew the fixing screws of the screw and the sleeve. At this time, the screw can be slid out of the barrel with only a small pulling force...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for quickly disassembling and assembling screws of a double-screw extruder. The method is easy to implement and short in disassembling and assembling time. The method is realized mainly through the following steps that step 1, before the screws are disassembled, the temperature of a cylinder is raised to approximate 300 DEG C; step 2, the screws are rotated, nylon materials left on the cylinder and carried in PE last time are cleaned clearly by PE materials, and then lubricating agent ethylene bias stearamide and linear low-intensity polyethylene are mixed to clean the screws again; step 3, screw rotation is stopped, an extruder die head is opened, and the screws and set screws of sleeves are unscrewed; step 4, after the double-screws are pulled out, the double-screws are cleaned through copper brushes; step 5, the cylinder is blown clearly through an air gun, and newly-assembled screws are installed. The method is easy to implement, short in screw disassembling and assembling time, high in efficiency and low in equipment cost.
Description
technical field [0001] The invention relates to the field of modification and processing of engineering plastics, in particular to a method for quickly disassembling and assembling the screws of a twin-screw extruder. Background technique [0002] In the modification production of engineering plastics, it is often necessary to rearrange the screw combination of the twin-screw extruder due to the requirements of formula production. Ordinary screw removal process uses PE, PP, ABS, or even some high-viscosity resins such as PC to clean the barrel slightly, and then directly pulls the screw manually. The problem with this method of operation is that the heavy screw is difficult to pull out, and it often requires the concerted efforts of four to five people, or even rough pulling, to forcibly pull out the screw, which consumes a lot of manpower, material resources and time, and it is not easy to pull out the screw. Cleaning, resulting in the failure of normal installation or ins...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23P11/00
CPCB29C48/57B29C48/2561B29C48/507
Inventor 沈晗晨
Owner 杭州迅塑高分子材料有限公司