Sealing machine

Abstract

The invention relates to a box sealing machine. The box sealing machine comprises a machine base, a machine head arranged on the machine base, a cover folding mechanism, an upper machine core and a conveying rail arranged on the machine base, wherein the cover folding mechanism and the upper machine core are arranged on the machine head, and the machine head can move up and down relative to the machine base so as to adjust the distance between the cover folding mechanism and the conveying rail as well as the distance between the upper machine core and the conveying rail. The box sealing machine further comprises a first air cylinder and a cut-off mechanism, wherein the first air cylinder is installed above the machine head, and a piston rod of the first air cylinder is fixedly connected with the machine head; the cut-off mechanism comprises a rotary shaft rotationally arranged on the machine base, a ratchet wheel, a belt wheel, two belts and a pawl, the ratchet wheel and the belt wheel are fixedly installed on the rotary shaft, the two belts are wound on the belt wheel in the opposite directions, the pawl is rotationally arranged on the machine base, a plurality of notches are formed in the edge of the ratchet wheel and arranged in the circumferential direction of the ratchet wheel, one end of a chain is connected with the machine base through a coiled spring, and the other end of the chain is fixedly connected with the machine head. The box sealing machine is low in cost and safe to use.

Description

technical field [0001] The invention relates to a box sealing machine. Background technique [0002] The carton sealing machine is used to seal the carton with tape, etc. The sealing machine generally includes a machine base, a machine head, a folding mechanism, and an upper movement. The height of the machine head is adjustable relative to the machine base. The folding mechanism and the upper movement are arranged on the machine head. The upper cover of the carton is folded, and the upper core is provided with an adhesive tape for sealing the upper cover of the carton. In actual use, it is necessary to adjust the height of the machine head according to the height of the carton so that the folding mechanism and the upper core can reach the working position. Especially in some situations such as logistics industry, the size of each package is different, and the height of the machine head needs to be adjusted frequently according to the size of the package. [0003] In the ...

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Problems solved by technology

[0004] 1. The servo motor drives the machine head to slide up and down along the machine base. Although this method is relatively simple to implement, the cost of the servo motor is too high, and once the servo motor fails, the entire machine head together with the servo motor will fall, which is very likely to be damaged The equipment below and cause injury or even death to the operator, poor safety;

[0005] 2. The piston rod of the oil cylinder drives the machine head to slide up and down along the machine base. Compared with using a servo motor, this method has a slightly lower cost, but the oil cylinder has a lot of weight. Hidden danger, damage to the equipment below and cause injury or even death to the operator, poor safety

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