Sealing machine with adjustable sealing widths

Abstract

The invention relates to the technical field of packaging and sealing and discloses a sealing machine with adjustable sealing widths. The sealing machine comprises a conveying belt. Through grooves are formed in the conveying belt. A hot pressing roller and a wind box are arranged above the conveying belt. The wind box comprises a fan and is provided with first branch pipes. A wind guiding pipe is arranged under the conveying belt. Second branch pipes are arranged on the wind guiding pipe and directly face the first branch pipes. Each second branch pipe, the corresponding first branch pipe and the corresponding through groove form a ventilation set correspondingly. At least two ventilation sets are arranged. A shaft tube is arranged on the hot pressing roller in a penetrating mode and slidably connected with the hot pressing roller. The hot pressing roller comprises a first roller body and a second roller body. The first roller body is sleeved with the second roller body. The second roller body and the first roller body are slidably connected and both provided with heating sheets. One end of the wind guiding pipe faces the face, away from the second roller body, of the first roller body, and the other end of the wind guiding pipe faces the face, away from the first roller body, of the second roller body. The two ends of the wind guiding pipe extend in the axial direction of the first roller body. According to the sealing machine, the sealing widths of the sealing machine can be automatically adjusted.

Description

technical field [0001] The invention relates to the technical field of packaging sealing, in particular to a sealing machine with adjustable sealing width. Background technique [0002] Dried tofu is a reprocessed product of tofu. It is fragrant and refreshing, hard and tough, and will not spoil after a long time. Dried tofu is rich in nutrition, contains a lot of protein, fat, carbohydrates, and also contains calcium, phosphorus, iron and other minerals needed by the human body. It has a certain effect on preventing cardiovascular diseases and arteriosclerosis, and can also supplement calcium , prevent osteoporosis caused by calcium deficiency, and promote bone development. [0003] In the production and processing of dried tofu, it is necessary to put the prepared dried tofu in a packaging bag, and use a sealing machine to heat seal the packaging bag, so as to maintain product quality and avoid product loss. The sealing of dried tofu packaging bags is usually done on a s...

AI Technical Summary

Problems solved by technology

At present, the size of the packaging bags used for different varieties of dried tofu is different, and in the actual sealing, the heat-pressing width of the sealing machine cannot be adjusted, so that the device is not suitable for heat-pressing sealing of packaging bags of various specifications. not tall

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