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CN-121973428-A - Degradable environment-friendly plastic packaging bag material and blow molding process thereof

CN121973428ACN 121973428 ACN121973428 ACN 121973428ACN-121973428-A

Abstract

The invention discloses a degradable environment-friendly plastic packaging bag material and a blow molding process thereof, which relate to the technical field of plastic packaging bag molding and comprise a bottom plate, wherein the upper side of the bottom plate is fixedly connected with a fixing frame, the upper side of the fixing frame is fixedly connected with an electric push rod I, the output end of the lower side of the electric push rod is provided with a blow molding unit, the upper side fixedly connected with two fixed blocks and air-cooler of bottom plate, the outside fixedly connected with electric putter two of fixed block, the outer end fixedly connected with blowing mould of electric putter two, blowing mould's upside fixedly connected with outlet duct, blowing unit includes the blowing machine. Through being provided with blowing machine, stretching pipe, blowing section of thick bamboo, make things convenient for the blowing machine to carry out the blowing processing to the molten material to through screw rod, screw thread section of thick bamboo, blowing pipeline, cooling pipeline and water tank, the blowing pipeline of convenient control descends, carries out quick cooling in the cooling pipeline to the wrapping bag, makes the wrapping bag cooling even.

Inventors

  • LIU MEI
  • LIU SONG

Assignees

  • 鑫永佳阳(大连)包装制品有限公司

Dates

Publication Date
20260505
Application Date
20260317

Claims (8)

  1. 1. The blow molding process of the degradable environment-friendly plastic packaging bag material comprises a bottom plate (1) and is characterized in that a fixing frame (2) is fixedly connected to the upper side of the bottom plate (1), an electric push rod I (3) is fixedly connected to the upper side of the fixing frame (2), a blow molding unit (6) is arranged at the output end of the lower side of the electric push rod I (3), two fixing blocks (9) and an air cooler (7) are fixedly connected to the upper side of the bottom plate (1), an electric push rod II (10) is fixedly connected to the outer side of the fixing blocks (9), a blow molding die (4) is fixedly connected to the outer end of the electric push rod II (10), an air outlet pipe (5) is fixedly connected to the upper side of the blow molding die (4), the blow molding unit (6) comprises a blow molding machine (61), a stretching tube (62) is fixedly connected to the lower side of the electric push rod I (3), a stretching tube (64) is fixedly connected to the lower side of the electric push rod I (61), a stretching tube (64) is fixedly connected to the outer side of the lower end of the stretching tube (62), a plurality of stretching tubes (64) are fixedly connected to the inner side cooling tubes (64), a plurality of blowing tubes (67) are arranged between the stretching tubes (64) and the blowing tube (64), the cooling component is used for cooling the inside of the packaging bag.
  2. 2. The blow molding process of the degradable environment-friendly plastic packaging bag material according to claim 1, wherein a connecting pipe I (8) is fixedly connected between the air cooler (7) and the blow molding die (4), the cooling component comprises a motor (68), the motor (68) is fixedly connected to the inner side of the stretching pipe (62), the output end of the motor (68) is fixedly connected with a screw rod (69), a threaded cylinder (612) is arranged on the outer side of the screw rod (69), the lower end of the threaded cylinder (612) is fixedly connected with a blow molding pipeline (613), a plurality of side grooves (620) are formed in the outer side of the blow molding pipeline (613), a control board (622) is fixedly connected to the inner side of the side grooves (620), two side blocks (623) are fixedly connected to the outer side of the control board (622), a cooling pipe (624) is fixedly connected to the upper side of the blow molding cylinder (64) is fixedly connected with a fixing cylinder (66), and the lower end of the blow molding pipeline (613) is fixedly connected with a chassis (617).
  3. 3. The blow molding process of the degradable environment-friendly plastic packaging bag material according to claim 2, wherein an annular pipe I (618) and an annular pipe II (619) are fixedly connected to the inner side of the blow molding pipeline (613), a connecting pipe III (639) is fixedly connected between the annular pipe II (619) and the cooling pipe (624), a connecting pipe II (625) is fixedly connected between the annular pipe I (618) and the cooling pipe (624), a water inlet pipe (610) is fixedly connected to the outer side of the annular pipe I (618), a water outlet pipe (611) is fixedly connected to the outer side of the annular pipe II (619), a water tank (63) is fixedly connected to the lower side of the blow molding machine (61), and the water tank (63) is fixedly connected with the water inlet pipe (610).
  4. 4. A blow molding process of a degradable environment-friendly plastic packaging bag material is characterized in that a fixing ring (615) is fixedly connected to the inner side of a stretching pipe (62), a sliding rod (616) is fixedly connected to the upper side of the fixing ring (615), a lifting ring (614) is fixedly connected to the outer side of a threaded cylinder (612), a screw (69) is in threaded connection with the threaded cylinder (612), and the sliding rod (616) is in sliding connection with the lifting ring (614).
  5. 5. The process for blow molding a degradable environment-friendly plastic packaging bag material as claimed in claim 4, wherein the annular pipe I (618) is positioned below the annular pipe II (619), and the water outlet pipe (611) and the water inlet pipe (610) penetrate through the outer side of the stretching pipe (62).
  6. 6. The blow molding process of the degradable environment-friendly plastic packaging bag material of claim 5, wherein rectangular holes (621) are formed in the inner side of the side grooves (620), top blocks (626) are fixedly connected to the upper sides of the control boards (622), inclined boards (627) are rotatably connected to the outer sides of the top blocks (626), rotating blocks (628) are rotatably connected to the outer sides of the inclined boards (627), control boards (629) are fixedly connected to the upper sides of the rotating blocks (628), mounting barrels (630) are fixedly connected to the inner sides of the blow molding pipelines (613), piston discs (631) are arranged in the inner sides of the mounting barrels (630), and connecting rods (632) are fixedly connected between the piston discs (631) and the control boards (629).
  7. 7. The blow molding process of the degradable environment-friendly plastic packaging bag material of claim 7, wherein an air cylinder (634) is fixedly connected to the upper side of the fixed ring (615), a movable piston (635) is arranged on the inner side of the air cylinder (634), a jacking pipe (636) is fixedly connected to the upper side of the movable piston (635), a contact disc (637) is fixedly connected to the upper end of the jacking pipe (636), a conveying pipe (633) is fixedly connected between the air cylinder (634) and the mounting cylinder (630), the contact disc (637) is located below the lifting ring (614), and a spring (638) is fixedly connected between the outer side of the movable piston (635) and the upper side of the fixed ring (615).
  8. 8. The blow molding process of the degradable environment-friendly plastic packaging bag material according to claim 7, which is characterized by comprising, by weight, 60-70 parts of PBAT, 20-30 parts of corn starch and 10-20 parts of PLA.

Description

Degradable environment-friendly plastic packaging bag material and blow molding process thereof Technical Field The invention relates to the technical field of plastic packaging bag molding, in particular to a degradable environment-friendly plastic packaging bag material and a blow molding process thereof. Background The degradable environment-friendly plastic packaging bag is simply a plastic packaging product which is based on the traditional plastic, can be degraded under the action of microorganisms under specific natural conditions or artificial environments through technical innovation and is harmless to the environment finally. When the degradable environment-friendly plastic packaging bag is produced, the degradable environment-friendly material is extruded through the screw extruder, the material is sheared after extrusion, then the molten material is poured into a die, the material is subjected to blow molding treatment through the blow molding machine, so that the packaging bag is subjected to blow molding, cooling is required to be carried out on the packaging bag after the blow molding, a coolant or cold air flow is usually used for cooling, but only the outer surface of the packaging bag is cooled during cooling, the inside of the packaging bag is not cooled, when the packaging bag with thick thickness is processed, the condition of uneven cooling is easy to occur, the packaging bag is required to be naturally cooled and then be opened, and the molding time is prolonged. Therefore, the invention provides a degradable environment-friendly plastic packaging bag material and a blow molding process thereof, so as to solve the problems. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a degradable environment-friendly plastic packaging bag material and a blow molding process thereof, which solve the problem of poor internal cooling effect in cooling after the packaging bag is blown. In order to achieve the above purpose, the invention is realized by the following technical scheme: The utility model provides a degradable environment-friendly plastic packaging bag material's blow molding technology, includes the bottom plate, the upside fixedly connected with mount of bottom plate, the upside fixedly connected with electric putter one of mount, the output of electric putter downside is provided with the blowing unit, the upside fixedly connected with two fixed blocks of bottom plate and air-cooler, the outside fixedly connected with electric putter two of fixed block, the outer fixedly connected with blowing mould of electric putter two, the upside fixedly connected with outlet duct of blowing mould, the blowing unit includes the blowing machine, blowing machine fixedly connected with is at the output of electric putter downside, the downside fixedly connected with stretching tube of blowing machine, the outside fixedly connected with blowing section of thick bamboo of stretching tube lower extreme, a plurality of blowing holes have been seted up to the downside of blowing section of thick bamboo, fixedly connected with bleeder between blowing section of thick bamboo and the stretching tube, the inboard of stretching tube is provided with cooling module, cooling module is used for the cooling in the wrapping bag. Preferably, the first connecting pipe is fixedly connected between the air cooler and the blow molding die, the cooling assembly comprises a motor, the motor is fixedly connected to the inner side of the stretching pipe, the output end of the motor is fixedly connected with a screw rod, the outer side of the screw rod is provided with a threaded cylinder, the lower end of the threaded cylinder is fixedly connected with a blow molding pipeline, a plurality of side grooves are formed in the outer side of the blow molding pipeline, a control board is fixedly connected to the inner side of the side grooves, two side blocks are fixedly connected to the outer side of the control board, a cooling pipe is fixedly connected between the two side blocks, a fixing cylinder is fixedly connected to the upper side of the blow molding cylinder, and a chassis is fixedly connected to the lower end of the blow molding pipeline. Preferably, the inside fixedly connected with ring pipe I of blowing pipeline and ring pipe II, fixedly connected with connecting pipe III between ring pipe II and the cooling tube, fixedly connected with connecting pipe II between ring pipe I and the cooling tube, the outside fixedly connected with inlet tube of ring pipe I, the outside fixedly connected with outlet pipe of ring pipe II, the downside fixedly connected with water tank of blowing machine, water tank and inlet tube fixed connection. Preferably, the inside fixedly connected with solid fixed ring of tensile pipe, gu fixed ring's upside fixedly connected with slide bar, the outside fixedly connected with lifting ring of screw thread section of thick bamboo, screw rod and screw thread se