Manipulators for blow molding machines for hollow plastic products

Abstract

The invention provides a mechanical arm for a blow molding machine of hollow plastic products and belongs to the field of auxiliary facilities of blow molding machines of the hollow plastic products. The mechanical arm for the blow molding machine of the hollow plastic products comprises a cross beam, a cross beam lifting frame, a drive mechanism, a clamping jaw arm supporting mechanism, a first clamping jaw arm, a second clamping jaw arm and a clamping jaw arm driving acting cylinder. The cross beam is provided with a cross beam cavity. The cross beam lifting frame is connected with the cross beam. The driving mechanism is arranged on the cross beam. The clamping jaw arm supporting mechanism is connected with the driving mechanism. The right end of the first clamping jaw arm is supported by the clamping jaw arm supporting mechanism. The left end of the first clamping jaw arm is fixedly provided with a first clamping jaw. The right end of the second clamping jaw arm is supported by the clamping jaw arm supporting mechanism. A second clamping jaw is fixed to the left end of the second clamping jaw arm. The clamping jaw arm driving acting cylinder is fixed to the clamping jaw arm supporting mechanism. The mechanical arm is characterized by further comprising a synchronous clamping jaw arm opening and closing mechanism which is arranged on the clamping jaw arm supporting mechanism and hinged to the first clamping jaw arm and the second clamping jaw arm, wherein the driving mechanism comprises a motor, a driving synchronous belt wheel, a driven synchronous belt wheel and a synchronous belt. The mechanical arm simplifies structures, avoids noise, guarantees the stability of reciprocating movement of the clamping jaw arm supporting mechanism, can double speed and is high in operation safety.

Description

technical field [0001] The invention belongs to the technical field of auxiliary facilities for blow molding machines for hollow plastic products, and in particular relates to a manipulator for blow molding machines for hollow plastic products. Background technique [0002] The typical products of the aforementioned hollow plastic products are plastic bottles used for packaging food, beverages, condiments, cosmetics, medicines, etc., as well as various palletizing barrels, gallon barrels, water tanks, etc., which are used for blow molding The machinery for such hollow plastic products, not limited to examples, is conventionally called a blow molding machine, and is also often referred to simply as a blow molding machine. [0003] There is no lack of technical information about hollow plastic product molding machines in the published Chinese patent documents, such as CN2160528Y (full-automatic hollow plastic container stretch-blow molding machine), CN2183870Y (semi-automatic ...

AI Technical Summary

Problems solved by technology

[0005] The "manipulator capable of clamping blow molding machine molded products" recommended by the Chinese patent authorization announcement number CN203776010U can reflect the aforementioned technical effects and eliminate the aforementioned technical problems. However, by reading the full text of the patent specification, it is not difficult to find the following: Disadvantages: First, because the driving mechanism that drives the jaw arm support mechanism to move back and forth uses a chain transmission, the structure is relatively complicated. For example, in order to confiscate the elongation allowance of the chain after a period of use, a chain tension adjustment mechanism is required. And the friction between the chain and the guide rail on the crossbeam will make a lot of noise, and affect the reciprocating movement effect of the jaw arm support mechanism due to the poor stability of the chain transmission; Under the action of the action cylinder, the movement of closing or repelling relative to the other jaw arm is performed, so one of the jaw arms in the pair of jaw arms behaves as a positive jaw arm because it can move, while The other jaw arm behaves as a passive jaw arm because of its static motion, so whether it is holding or releasing the hollow plastic product is affected; thirdly, because one of the jaw arms in the pair of jaw arms One end of the arm is fixed on the jaw fixing plate, and the other end is formed as a lengthy horizontal cantilever end, and because one end of the other jaw arm in the pair of jaw arms is fixed to the action cylinder (the patent is called the cylinder) , the other end is also formed as a lengthy horizontal cantilever end, so it is difficult to guarantee the overall clamping force of the pair of jaw arms on the hollow plastic product, and there is a risk of breaking free from the pair of jaw arms, and once this happens, lightly It will damage the product, and seriously, the online operators

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