Plastic bag folding and rubber band binding all-in-one machine

Abstract

The invention discloses a plastic bag folding and rubber band binding all-in-one machine. The machine comprises a machine frame, a vibration disc device, a rubber band expanding device, a handle folding device, a tail folding device and a plate inserting device, and is characterized in that a bag supporting device, a bag clamping device and a bag conveying movement device are further arranged at the corresponding positions of the inserting plate; the machine further comprises a bundling movement device and a suspension outer bag clamping mechanism, the bag supporting device and the bag clamping device are used for folding a plastic bag from the middle position and clamping and shaping the plastic bag, then the bag clamping device or a bag clamping mechanical arm clamps one side of the plastic bag, and the other side of the plastic bag is inserted into the rubber band expanding device to be bundled. The machine has the advantages that operation from folding to bundling is carried out almost in a clamping plate mechanism of the bag clamping device, so that folding and bundling are integrated without mechanical arm changing, the folding and bundling work is stable and reliable, and the structure is simple and compact.

Description

technical field [0001] The invention relates to a plastic bag folding and rubber band binding integrated machine, specifically a folding and binding integrated device that firstly automatically folds plastic bags, and then uses ring rubber bands to bind the folded plastic bags . Background technique [0002] The plastic bag of the present invention is a plastic convenient bag with two handles, also known as a vest bag. The plastic bags automatically produced by a bag making machine are generally dozens of plastic bags in a neat package. Put them together, and then transport them out one by one intermittently. In order to facilitate storage, sales and use, these plastics need to be folded many times, and finally folded into long strips, and then tied with a ring-shaped rubber band in the middle of the strip-shaped plastic bag, that is, put it in the middle of the plastic bag. A looped rubber band. Then you can enter the market. [0003] For automatic folding devices for p...

AI Technical Summary

Problems solved by technology

Its existing problems are: First, the handles of the plastic bags are irregular. When the middle part of a stack of plastic bags is pressed by the flashboard on the folding bracket and moves downward, the plastic bags on both sides of the flashboard will The bag part is not symmetrical, and its friction and resistance are different. The front part of the insert board is irregular because of the existence of two handles, and the two handles are even more irregular after the handles are folded. As a rule, when the handle part passes through the folding nip roller, the frictional force generated will inevitably be large, and the descending speed will inevitably be slow, while the part on the other side of the insert (the tail of the plastic bag) is relatively regular, and some are shorter. The plastic bag does not need to be folded at the tail. In this case, the plastic bag on the front side of the board has been folded into three layers, while the tail of the rear side has only one layer. In this way, the rear part of the board is lowered due to low resistance. In this case, the predetermined folding line position of the plastic bag will deviate around the board, resulting in uncertain folding positions, and the folded plastic bags have different specifications, and may even be inserted into contact with the board. Nearby plastic bags

The main problem is: when the inserting plate is inserted into the U-shaped groove, friction occurs between the two sides of the plastic bag and the guide plate to form resistance, so the position where the inserting plate touches the plastic bag will change, resulting in The folded plastic bags have different widths and poor uniformity

If a manipulator is designed to transfer between the folding device and the strapping device of the plastic bag, this will not only complicate the structure of the machine, but also reserve a certain movement space for the transfer path of the manipulator, which will also affect work speed and efficiency

The bigger problem is that the plastic bags that have been folded and formed will easily deform after being "handled" by another group of robots, which will also affect the stability of folding and bundling.

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