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CN-121986818-A - Production method of high-strength collagen casing sleeve shrinkage tube

CN121986818ACN 121986818 ACN121986818 ACN 121986818ACN-121986818-A

Abstract

The invention relates to a production method of a high-strength collagen casing shrink tube, which comprises the following steps of S1, pulling an inflated collagen casing to a flattening conveying roller, flattening the collagen casing through the flattening conveying roller and then pulling the flattened collagen casing to a spraying device, S2, spraying a glue humidifying liquid on the outer surface of the flattened collagen casing uniformly through a high-pressure nozzle of the spraying device, winding the flattened collagen casing into a roll through a traction wheel set, S3, unwinding the rolled collagen casing, and performing shrink processing through a shrink machine.

Inventors

  • WANG SIQI
  • TANG HUI

Assignees

  • 得福乐(南通)科技有限公司

Dates

Publication Date
20260508
Application Date
20260306

Claims (10)

  1. 1. A production method of a high-strength collagen casing sleeve shrink tube is characterized by comprising the following steps: S1, extruding collagen glue through an extruder, then inflating, drying and forming to obtain a collagen casing, and dragging the collagen casing in an inflated state to a flattening conveying roller, flattening the collagen casing through the flattening conveying roller and then dragging the collagen casing to a spraying device; s2, atomizing the glue humidifying liquid by a high-pressure nozzle of the spraying device, uniformly spraying the atomized glue humidifying liquid on the outer surface of the flattened collagen casing, spraying the glue humidifying liquid on the flattened collagen casing, passing through a switching wheel set, and winding the flattened collagen casing into a roll by a traction wheel set; S3, after the coiled collagen casing is unreeled, the coiled collagen casing is subjected to sleeve shrinking treatment by a sleeve shrinking machine, and the high-strength collagen casing sleeve shrinking pipe is obtained by pleating and forming.
  2. 2. The method of claim 1, wherein the spraying device comprises a fixed box body, a first passage channel for the collagen casing to pass through is arranged in the fixed box body, and openings for the collagen casing to enter and exit the fixed box body are arranged on two sides of the first passage channel on the fixed box body; the fixed box body is internally provided with two high-pressure nozzles for forming fan-shaped spray, the two high-pressure nozzles are respectively arranged at two sides of the first passage, one side of each high-pressure nozzle, which faces the first passage, is provided with a liquid nozzle and an air nozzle, the air nozzle is annularly enclosed outside the liquid nozzle, the high-pressure nozzle is internally provided with a liquid supply passage for communicating the liquid nozzle and an air supply passage for communicating the air nozzle, the air supply passage is provided with two branch passages, the end parts of the two branch passages are respectively distributed at two sides of the air nozzle along the direction parallel to the first passage and are respectively extended to one side, close to the first passage, of the air nozzle, and the end parts of the two branch passages are provided with round holes facing the first passage.
  3. 3. The method for producing high-strength collagen casing shrink tube according to claim 2, wherein the high-pressure nozzle pumps the glue humidifying liquid into the liquid supply channel by providing kinetic energy through a peristaltic pump, the spraying amount of the glue humidifying liquid is controlled by adjusting the pump speed of the peristaltic pump, the rotating speed of the peristaltic pump is controlled to be 100-230 rpm, the air pressure in the air supply channel of the high-pressure nozzle is controlled to be 3-10 bar, and the moisture content in the flattened collagen casing after the glue humidifying liquid is sprayed is 15-25%.
  4. 4. The method for producing a high-strength collagen casing shrink tube according to claim 3, wherein the peristaltic pump is controlled at 160-170 rpm, the air pressure in the air supply channel of the high-pressure nozzle is controlled at 6-7 bar, and the moisture content in the flattened collagen casing after spraying the glue humidifying liquid is 19-21%.
  5. 5. The method for producing high-strength collagen casing shrink tube according to claim 1, wherein the glue in the glue humidifying liquid is water-soluble edible glue, and the concentration is 3-10%.
  6. 6. The method of claim 5, wherein the water-soluble edible glue is acacia, xanthan gum or locust bean gum.
  7. 7. The method of producing a high-strength collagen casing shrink tube according to claim 1, wherein the inflated collagen casing is pulled to a flattening conveyor roller, an inflated diameter of the collagen casing is captured by a diameter laser measuring instrument before entering the flattening conveyor roller, and inflation pressure in the inflated collagen casing is adjusted according to the captured inflated diameter so that the flattened collagen casing diameter meets the requirement.
  8. 8. The method of producing a high-strength collagen casing shrink tube according to claim 1, wherein the flattening conveying roller rotates at 10000m/h, and the inflation pressure of the collagen casing in an inflated state before entering the flattening conveying roller is 400Pa.
  9. 9. The method of claim 1, wherein the switching wheel set comprises a plurality of switching wheels capable of moving up and down, the central axes of the switching wheels are horizontally arranged and parallel to each other, the switching wheels are divided into an upper switching wheel set and a lower switching wheel set, the switching wheels of the upper switching wheel set are arranged at intervals with the switching wheels of the lower switching wheel set, and a distance for the switching wheels of the upper switching wheel set to move through is reserved between the adjacent switching wheels of the lower switching wheel set; The traction wheel set comprises two traction wheels which are arranged in parallel, and traction force sensors for detecting collagen casing traction change are arranged on the two traction wheels.
  10. 10. The method of manufacturing a high strength collagen casing shrink tube according to claim 9, wherein the flattened collagen casing is sprayed with the glue wetting liquid and then passes through the switching wheel sets, and the process of winding the flattened collagen casing into a roll by the traction wheel sets requires to periodically detect the humidification of the flattened collagen casing after spraying the glue wetting liquid so as to adjust the spraying amount of the glue wetting liquid in time; the humidification degree adopts off-line test, and the operation process comprises the following steps: S1, cutting and reeling samples, namely cutting off the casing on a traction wheel which is being reeled, feeding back the traction force change to a switching wheel set by a traction force sensor, enabling the switching wheel of an upper switching wheel set to move downwards, downwards pressing the casing, upwards pressing the casing by the switching wheel of a lower switching wheel set, keeping the end part of the casing stationary, reeling the casing on another traction wheel and starting traction, feeding back the traction force change to the switching wheel set by the traction force sensor, slowly recovering the switching wheel of the switching wheel set to an initial position, and enabling a second passing channel for the casing to pass through and not contact with the switching wheel to be formed between the switching wheel of the upper switching wheel set and the switching wheel of the lower switching wheel set; S2, off-line testing, namely after a casing on an undrawn traction wheel is sampled to obtain a sample, weighing the sample by a heating balance to obtain the original weight, and heating the sample at 110 ℃ for 5min to obtain the weight of water lost by the sample, wherein the weight of water lost by the sample accounts for the percentage of the original weight, namely the humidification of the casing.

Description

Production method of high-strength collagen casing sleeve shrinkage tube Technical Field The invention relates to the technical field of casing shrink tube production, in particular to a production method of a high-strength collagen casing shrink tube. Background The collagen casing sleeve is prepared by compressing long collagen casing with a sleeve compressor and folding into a section of compact corrugated semi-finished product, which is convenient for use in the subsequent clysis. The invention provides an edible collagen extraction and collagen casing preparation method provided by Chinese patent publication No. CN120898914A, wherein during the preparation of the collagen casing, collagen slurry is extruded and molded by an extruder, solidified and dried into a barrel casing shape, and then the molded casing is wetted and processed into a sleeve finished product by a sleeve shrinking machine. The method for producing the collagen casing shrink tube by humidifying and pleating the dried collagen casing is characterized in that the bonding force between the folds of the obtained casing shrink tube is realized by means of vacuum pressure difference between the folds, but the vacuum pressure difference is difficult to meet the requirement of the collagen casing shrink tube with the length of more than or equal to 35 cm on strength, and the folds of the casing shrink tube are loose and easy to break, so that the length of the casing shrink tube is limited, the shrink tube rate is low, and the packaging cost is increased. Therefore, the invention provides a production method of a high-strength collagen casing sleeve tube to solve the problems. Disclosure of Invention The invention aims to solve the technical problem of providing a production method of a high-strength collagen casing shrink tube, so that the bonding strength between the folds of the casing shrink tube meets the requirement of the collagen casing shrink tube with the length of more than or equal to 35 cm, and the shrinkage rate of the casing shrink tube is improved. In order to solve the technical problems, the technical scheme of the invention is that the production method of the high-strength collagen casing sleeve pipe is characterized by comprising the following steps: S1, extruding collagen glue through an extruder, then inflating, drying and forming to obtain a collagen casing, and dragging the collagen casing in an inflated state to a flattening conveying roller, flattening the collagen casing through the flattening conveying roller and then dragging the collagen casing to a spraying device; s2, atomizing the glue humidifying liquid by a high-pressure nozzle of the spraying device, uniformly spraying the atomized glue humidifying liquid on the outer surface of the flattened collagen casing, spraying the glue humidifying liquid on the flattened collagen casing, passing through a switching wheel set, and winding the flattened collagen casing into a roll by a traction wheel set; S3, after the coiled collagen casing is unreeled, the coiled collagen casing is subjected to sleeve shrinking treatment by a sleeve shrinking machine, and the high-strength collagen casing sleeve shrinking pipe is obtained by pleating and forming. Further, the spraying device comprises a fixed box body, a first passing channel for the collagen casing to pass through is arranged in the fixed box body, and openings for the collagen casing to enter and exit the fixed box body are formed in two sides of the first passing channel on the fixed box body; the fixed box body is internally provided with two high-pressure nozzles for forming fan-shaped spray, the two high-pressure nozzles are respectively arranged at two sides of the first passage, one side of each high-pressure nozzle, which faces the first passage, is provided with a liquid nozzle and an air nozzle, the air nozzle is annularly enclosed outside the liquid nozzle, the high-pressure nozzle is internally provided with a liquid supply passage for communicating the liquid nozzle and an air supply passage for communicating the air nozzle, the air supply passage is provided with two branch passages, the end parts of the two branch passages are respectively distributed at two sides of the air nozzle along the direction parallel to the first passage and are respectively extended to one side, close to the first passage, of the air nozzle, and the end parts of the two branch passages are provided with round holes facing the first passage. Further, the high-pressure nozzle provides kinetic energy to pump glue humidifying liquid into the liquid supply channel through the peristaltic pump, the spraying amount of the glue humidifying liquid is controlled by adjusting the pump speed of the peristaltic pump, the rotating speed of the peristaltic pump is controlled to be 100-230 rpm, the air pressure in the air supply channel of the high-pressure nozzle is controlled to be 3-10 bar, and the moisture content in the flattened c