Degradable square-bottom bag and forming device thereof

Abstract

The invention discloses a degradable square-bottom bag and a forming device thereof. The degradable square-bottom bag comprises a main body, a fixing device and a protection device, a rotating motor is fixedly connected to the top of the main body, a rotating column is rotatably connected to one side of the rotating motor, and a rotating block is fixedly connected to the side, away from the rotating motor, of the rotating column. Through the arrangement of the protection device, a glue dripping head can be conveniently protected, and the situation that glue drips on the surface of a formed bag, pollution is caused, and use is affected is prevented; a movable sleeve moves downwards when a lifting air cylinder is started, a buffer spring is extruded to deform, a connecting rod rotates at the same time, and a sliding ball slides on the inner wall of a sliding groove; at the moment, the protection plate rotates in the opposite direction, a rubber extrusion block gradually gets close to and is attached to the protection plate, the lifting air cylinder stops moving when the protection plate rotates to the position below the glue dripping head, the protection plate can effectively protect the glue dripping head, the situation that the glue drips on the surface of the formed bag, causes pollution and influences use of the bag is prevented, and the bonding effect at the edge of the bag is good.

Description

technical field [0001] The invention belongs to the technical field of square-bottom bag processing, and in particular relates to a degradable square-bottom bag and a forming device thereof. Background technique [0002] Square bottom bags, high molecular polymers (or synthetic resins) are the main components of plastics, in order to improve the performance of plastics, various auxiliary materials must be added to the polymers to meet people's various requirements for plastics, such as fillers, Plasticizers, lubricants, stabilizers, colorants, etc., can become plastics with good performance. The square bottom bag is generally made of synthetic resin as the main material. It is named after its square bottom. It unfolds like a carton. The length, width and height can vary. It is "tailor-made" according to the size of the product to be packaged. [0003] The packaging bag forming device disclosed in Chinese patent CN209580655U, although it has realized the rapid sealing, cutti...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a degradable square bottom bag and its forming device to solve the problem that the existing square bottom bag and its forming device proposed in the above-mentioned background technology are used because the glue is a viscous liquid and there is no The setting of the protective device will easily cause the glue to drip on the surface of the formed bag, and the operation of dispensing glue is inconvenient, which will cause pollution to affect the use and low work efficiency.

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