Method for automatically controlling film thickness and film blowing machine carrying out the method
A film blowing machine and film discharge technology, applied in the field of automatic control of film thickness, can solve problems such as low yield and production efficiency, uneven film thickness, etc., to improve production efficiency and yield, reduce production costs, and save manpower physical effect
Inactive Publication Date: 2006-04-26
王根乐
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method for automatically controlling the thickness of the film and a film blowing machine for implementing the method, so as to solve the problems of uneven thickness of the film, low yield and production efficiency in the prior art.
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[0016] see figure 1 , this embodiment includes the transverse machine body 2 with extruding screw, extruding screw driving motor 6, speed reducer 5, feed hopper 7, electronic scale 1, controller C, wind disc 3, spiral body 4 and two traction rollers 8. The extruding screw drive motor 6 is connected to the outer end of the extruding screw at one end of the body 2 through the reducer 5. An electronic scale 1 is arranged on the upper part of the body 2, and the upper end of the electronic scale 1 is connected to the feed hopper 7. The other end of the machine body 2 is connected to the lower end of the wind disk 3 through the longitudinal spiral body 4, and above the film outlet in the center of the upper end of the wind disk 3, two traction rollers 8 parallel to each other are installed, and the two traction rollers 8 are opposite to each other. direction transmission, and driven by the traction motor 9 through the transmission mechanism 11. The signal output end of electronic ...
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The invention discloses a self-control thickness method of inflation film manufacturing machine, which comprises the following steps: testing the feed speed; controlling the rotary speed of squeezed screw rod or drawoff roller according to the feed speed; keeping the inversed feed speed ratio of rotary speed of squeezed screw rod or proportional of rotary speed of drawoff roller; outputting even thickness film. The digital control inflation film manufacturing machine is characterized by the following: placing an electronic scale between feed hopper and body; connecting the signal output end of electronic scale with the squeezed screw rod actuating motor or drawoff roller motor through controller; countering the feed speed according to the weight of raw material in the feed hopper; adjusting the rotary speed of motor according to the feed speed. The invention produces uniform thickness film without usual detecting, which improves the manufacturing and product efficiency and reduces the productive cost.
Description
technical field [0001] The invention relates to a method for automatically controlling the film thickness and a film blowing machine implementing the method. Background technique [0002] The main structure of the existing film blowing machine includes a body, a motor, a reducer, a feed hopper, a wind disc and a traction roller. The motor is connected to the outer end of the extrusion screw at one end of the body through a reducer. There is a feeding hopper; the other end of the machine body is connected to the wind disk, and two parallel traction rollers are installed above the film outlet of the wind disk, and the traction roller is connected to the motor through a transmission mechanism. Plastic raw materials (granules) enter the body from the hopper, and are extruded to the other end by the extruding screw in the body and heated at the same time. The upper end of the film is drawn upward by two traction rollers, the speed of the traction or the rotation speed of the ext...
Claims
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Inventor 王根乐
Owner 王根乐