Opening-closing device for plastic drawing-blowing machine pipe taking tongs

A technology of opening and closing device and drawing and blowing machine, applied in the field of plastic machinery, can solve the problems of large occupied space, difficulty in opening and closing of pipe jaws, unfavorable pipe taking, etc.

Inactive Publication Date: 2007-10-17
蔡佳祎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pipe-taking tongs of the prior art, one class is driven by the cylinder, and the opening and closing of the pipe-taking jaws will be difficult to achieve; The middle of the gear teeth is driven by a rack, and the rack is driven by a swing mechanism. Not onl

Method used

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  • Opening-closing device for plastic drawing-blowing machine pipe taking tongs
  • Opening-closing device for plastic drawing-blowing machine pipe taking tongs
  • Opening-closing device for plastic drawing-blowing machine pipe taking tongs

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Embodiment Construction

[0011] The present invention relates to the opening and closing device of pipe wrench for plastic stretch blowing machine, as shown in Fig. 1-Fig. There are many specific schemes for the station stretch-blow machine, which belong to the prior art. The stretch-blow machine of each station is equipped with a pipe take-off tong, which is driven by the inner and outer reciprocating motion mechanism, and the inner and outer movement That is, the radial movement from the center to the edge, the reciprocating mechanism makes the pipe tongs take the plastic bottle tube into the mold of the stretch-blow machine, and sends the formed container out of the mold. Its specific structure belongs to the prior art and is not in this case. Get the slide bar 13 heads of pipe wrench and install left and right pincers 5,7, be connected by pin 52,72, left and right pincers 5,7 are respectively shaped on gear teeth 57,77, have on slide bar Push rod 12, the head of push rod connects tooth bar 11, and...

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Abstract

The present invention relates to a switching device for the wrench for taking pipe of the plastic drawing and blowing machine, which comprises a support, a rolling disc arranged on the support, drawing and blowing machines for a plurality of working positions arranged on the rolling disc, the drawing and blowing machines for each working position is provided with a wrench for taking pipe, the wrench is driven by the inner and outer reciprocating movement mechanism, the sliding bar head of the wrench is provided with left and right tong heads which are provided with gear teeth respectively, a pushing bar is arranged on the sliding bar and is connected with rack at the head part, the rack meshes with the gear teeth of the tong head, an ejector cam is arranged at the end part of the pushing bar and contacts with the offsetting spring of the sliding bar, the spring is provided with a cover plate, the left and right tong heads are provided with jaws respectively, the jaw contacts with the plastic bottle tube. The present invention is characterized in that the left and right tong heads are respectively provided with tong rams, roller is arranged on the tong ram, guide rail is arranged on the support, the roller contacts with the guide rail.

Description

technical field [0001] The invention relates to an opening and closing device for pipe tongs of a plastic stretch blowing machine, belonging to the field of plastic machinery. Background technique [0002] Hollow plastic containers are processed by injection stretch blowing, such as mineral water bottles, oil bottles, etc. First, the plastic raw materials are injected into bottle tubes by injection molding machines, and then the bottle tubes are put into heaters for heating, and then stretched and blown by stretch blowing machines. Molded. There are many types of existing heaters and stretch-blow machines. There is a type of heater and multi-station stretch-blow machine that is suitable for plastic bottle nozzles facing upwards and can transport bottle tubes in translation. For example, heated plastic bottle tubes are released from the heater The bottle tube is taken out by the teeth of the edge of a middle dial, and the middle dial rotates with the b...

Claims

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Application Information

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IPC IPC(8): B29C49/42B29C49/08
Inventor 蔡佳祎
Owner 蔡佳祎
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