Chain track device capable of automatically adjusting width of chain tracks

Abstract

The invention discloses a chain track device capable of automatically adjusting the width of chain tracks. The device comprises a rack, the two chain tracks, a front end part width adjustment assembly, a rear end part width adjustment assembly, a middle width adjustment assembly, a controller and a plurality of encoders; each of the front end part width adjustment assembly, the rear end part widthadjustment assembly and the middle width adjustment assembly comprises a driving motor, an adjusting screw rod and two translation seats, wherein the adjusting screw rods are provided with left screwrod sections and right screw rod sections opposite in thread turning direction, the two translation seats are arranged on the two chain tracks correspondingly, the translation seat at the left side is provided with left screw holes meshed with the left screw rod sections, and the translation seat at the right side is provided with right screw holes meshed with the right screw rod sections; and each encoder is arranged on the corresponding adjusting screw rod correspondingly, each encoder is electrically connected with the corresponding input end of the controller, and each driving motor is electrically connected with the corresponding output end of the controller. The chain track device can automatically adjust the width of the two chain tracks in the production process, and the adjustment is accurate.

Description

technical field [0001] The invention relates to plastic molding equipment, in particular to a chain rail device capable of automatically adjusting the width of the chain rail. Background technique [0002] When plastic molding equipment such as cup making machines and blister machines are working, before the plastic sheet is conveyed, its two ends are respectively clamped on the chains in the two chain rails side by side, and the plastic sheet is held by the chains in the two chain rails. The material is conveyed forward, heated and softened by the heating device, and then shaped at the forming device. [0003] In order to solve the problem of the parallelism of the two chain rails, the applicant applied for a Chinese invention patent with the application number CN201720831807.9 on July 11, 2017, which discloses a chain rail with automatic width adjustment, including two The chain track arranged in parallel direction is characterized in that it also includes two end width a...

AI Technical Summary

Problems solved by technology

However, when the plastic sheet is heated by the heating device, the plastic sheet will expand due to heat and its own gravity, and its middle part will often sag, causing the sheet to be uneven and uneven in thickness when it is fed into the molding device, thus affecting the quality of the plastic sheet. Quality of molded plastic products

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