Automatic bag clasping device for open bags

Abstract

The invention discloses an automatic bag clasping device for open bags, and belongs to the technical field of packaging machinery. The automatic bag clasping device comprises a machine frame, and the machine frame comprises a front supporting beam and a rear supporting beam; a front bag-clasping moving trolley guide mechanism is arranged on the upward side of the front supporting beam, and a rear bag-clasping moving trolley guide mechanism is arranged on the upward side of the rear supporting beam; the two ends of a bag-clasping moving trolley are matched with the front bag-clasping moving trolley guide mechanism and the rear bag-clasping moving trolley guide mechanism; a bag-clasping moving trolley drive acting cylinder is arranged on a machine frame cross beam; a traction arm linkage mechanism is hinged to the middle of the bag-clasping moving trolley; a front traction arm is connected to the front of the traction arm linkage mechanism, and a rear traction arm is connected to the back of the traction arm linkage mechanism; a traction arm drive acting cylinder is arranged on the bag-clasping moving trolley; a front bag-clasping plate swing mechanism is connected to the front traction arm, and a rear bag-clasping plate swing mechanism is connected to the rear traction arm; a front bag-clasping tile-shaped plate is connected to the front bag-clasping plate swing mechanism, and a rear bag-clasping tile-shaped plate is connected to the rear bag-clasping plate swing mechanism; a front bag opening clamping mechanism is arranged on the top of the front bag-clasping plate swing mechanism, and a rear bag opening clamping mechanism is arranged on the top of the rear bag-clasping plate swing mechanism and corresponds to the front bag opening clamping mechanism. According to the automatic bag clasping device, the stability and the reliability of the bag-clasping operation are guaranteed; the structure is simplified; sealing at subsequent positions can be carried out smoothly; material waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of packaging machinery, and in particular relates to an automatic bag holding device for open bags, which is matched with an automatic filling and palletizing production line for open bags. Background technique [0002] The aforementioned open bag is widely used for fine chemical raw materials such as ultra-fine powder, metal ore and non-metallic ore powder, pharmaceutical and chemical raw materials, dyes, pigments, calcium carbonate, kaolin, phenolic resin and even food such as flour, seasoning, etc. Such as powder or granular material packaging. Since the open bag automatic filling machine has the advantages of high filling efficiency, accurate measurement, less manpower input and helping to reduce the work intensity of workers, it is widely used in the production industry not limited to the aforementioned products. [0003] As known in the industry, the main functions of the aforementioned open bag autom...

AI Technical Summary

Problems solved by technology

[0004] In the equipment configuration of the above-mentioned open bag automatic filling and palletizing production line, the automatic bag holding device will deliver the open bag filled with materials from the station where the filling device is located to the station where the automatic sealing device is located. Position is a very important link, because the reliability of bag holding action, bag shape retention, movement coordination with other devices, rhythm, etc. will have a corresponding impact on the entire production line, and will also have a corresponding impact on The sealing effect of the automatic sealing device has a corresponding influence

[0005] The technical information of various open bag bag holding devices can be seen in the published Chinese patent documents, typically such as the "swing type bag conveying manipulator structure of a fully automatic packaging machine" recommended by CN102849454B. This patent solution can reflect the technical effect column of its specification The technical effects of the seven aspects summarized in the above, but objectively there are the following shortcomings: First, because the bag body gripping device is arranged at the bottom of the height direction of the swing rod and the balance arm, and because the bag holding plate can only be arranged on the bag body On the gripping device and hug the lower part of the open bag when holding the bag, the height of the whole device is much larger than that of the open bag, which not only increases the volume of the swing type bag conveying manipulator, but also makes the structure significantly complicated And there is no economical cheapness; the second, because there are many action links, for example, three action cylinders need to be used (for details, refer to the last paragraph of the specification of this patent), which not only affects the efficiency of bag holding, but also is not conducive to energy saving; The shape and structure of the bag board is unreasonable, and in order to prevent the open bag filled with materials from breaking free from between a pair of bag boards, it is set on the jaw seat of the bag board and at the position corresponding to the lower part of the bag board. A rake-shaped jaw is added, and the jaw is supported by the bottom of the open bag. Therefore, on the one hand, the cohesive force of the bag-holding board to the open-mouth bag is weak, and on the other hand, when the bag-holding board is holding the bag, it is easy to cause the open-mouth bag to be relatively tight. Large deformation, on the other hand, the rake-shaped jaws may damage the bottom of the open-mouth bag, because the jaws will pierce the open-mouth bag due to a slight movement deviation

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