WO2015188715A1 - 防改日期包装袋制造方法 - Google Patents

防改日期包装袋制造方法 Download PDF

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Publication number
WO2015188715A1
WO2015188715A1 PCT/CN2015/080649 CN2015080649W WO2015188715A1 WO 2015188715 A1 WO2015188715 A1 WO 2015188715A1 CN 2015080649 W CN2015080649 W CN 2015080649W WO 2015188715 A1 WO2015188715 A1 WO 2015188715A1
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WO
WIPO (PCT)
Prior art keywords
plastic film
shelf life
hydraulic cylinder
date
sensor
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PCT/CN2015/080649
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English (en)
French (fr)
Inventor
冯林
Original Assignee
冯林
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 冯林 filed Critical 冯林
Priority to CN201580002299.7A priority Critical patent/CN105683047B/zh
Publication of WO2015188715A1 publication Critical patent/WO2015188715A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/26—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for marking or coding completed packages

Definitions

  • the invention relates to a method for manufacturing a packaging bag, in particular to a method for manufacturing a modified date packaging bag.
  • the packaging bags of the products especially the food packaging bags, the packaging date and shelf life printed in the packaging bags are easily altered by the criminals using the modified liquid, which damages the rights and interests of consumers; Anti-reform date packaging bag manufacturing method.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a method for manufacturing a weatherproof packaging bag for manufacturing a weatherproof packaging bag for preventing the use of a modified liquid to modify the production date of the packaging bag and Shelf life, safeguarding the rights and interests of consumers.
  • the technical solution adopted by the invention is that: a method for manufacturing a weatherproof packaging bag is required for the anti-reform date packaging bag; the anti-modification date packaging bag is formed by heat sealing and welding the front plastic film and the rear plastic film, and the date-proof packaging bag is prevented. It is equipped with heat sealing; the heat sealing is next to the anti-painting production date and the anti-shaping and shelf life.
  • the anti-painting production date is composed of the printing production date and the corresponding production date.
  • the anti-stamping warranty period is printed by the shelf life and the corresponding shelf life.
  • the hole is formed; the date of manufacture and the shelf life are printed on the back plastic film, the date of production date and the hole of the shelf life are set on the front plastic film, and the date of production of the front plastic film is the same as the shape and size of the production date of the back plastic film.
  • the shelf life of the front plastic film is the same as the shape and size of the plastic film.
  • the production date of the front plastic film is located on the opposite side of the production date of the plastic film.
  • the shelf life of the front plastic film is located in the back plastic film. Opposite to the shelf life, date of manufacture and date of production Altered with anti-sealing membrane between the shelf and the shelf-shaped hole, the printed production date and shelf life of anti-alteration sealing membrane sealed to the inside;
  • the anti-modification date packaging bag manufacturing equipment comprises a punching printing machine, a sealing machine, a hydraulic device, a frame and a controller, and the punching printing machine, the sealing machine, the hydraulic device and the controller are mounted on the frame;
  • the punching printing machine comprises a production date punching machine, a shelf life punching machine, a printing machine, a punching pad die and a first bottom die;
  • the typewriter comprises a heat sealing machine and a second bottom die;
  • the production date punching machine comprises a first pressure hole die and a first hydraulic cylinder, wherein the outer casing of the first hydraulic cylinder is connected to the frame, and the piston rod of the first hydraulic cylinder is connected with the first pressure hole die, and the first pressure hole font is
  • the embossing die the letter of the embossing die is the same as the text of the production date, and is used for punching out the production date word hole in the front plastic film; in order to avoid the swing of the first pressure hole die during operation, the first pressure hole die is provided with the first guide
  • the first hydraulic rod is fixed with a first guiding rod, the first guiding rod is sleeved in the first guiding sleeve, and the first guiding rod is dynamically coupled with the first guiding sleeve;
  • the shelf life punching machine comprises a second pressing hole die and a second hydraulic cylinder, wherein the outer casing of the second hydraulic cylinder is connected with the frame, the piston rod of the second hydraulic cylinder is connected with the second pressing hole die, and the second pressing hole die is convex.
  • the word die the letter of the embossing die is the same as the text of the shelf life, and is used for punching out the shelf life word hole in the front plastic film;
  • the second pressure hole die is provided with the second guide sleeve,
  • the second hydraulic rod is fixed with a second guiding rod, the second guiding rod is sleeved in the second guiding sleeve, and the second guiding rod is dynamically coupled with the second guiding sleeve;
  • the punching pad mold comprises a sixth hydraulic cylinder and a plug-in plate, the outer casing of the sixth hydraulic cylinder is connected with the frame, the piston rod of the sixth hydraulic cylinder is connected with the inserting plate, and the inserting plate is located on the left side of the first bottom mold; the production date When the punching machine stamping production date word hole and the shelf life punching machine stamping shelf life word hole, the sixth hydraulic cylinder is used to insert the insert plate between the front plastic film and the rear plastic film, so as to avoid punching the punched plastic film;
  • the printing machine comprises a printer, a third hydraulic cylinder, a fourth hydraulic cylinder, a first sliding seat, a first sliding rail, a second sliding rail and a second sliding sleeve, wherein the third hydraulic cylinder and the first sliding rail are mounted on the frame
  • the piston rod of the third hydraulic cylinder is fixedly connected with the first sliding seat, the first sliding seat is dynamically coupled with the first sliding rail, and the third sliding cylinder is used to control the movement of the first sliding seat in the vertical direction
  • the fourth hydraulic cylinder and the printer Installed on the first sliding seat, the print head of the printer is fixedly connected with the piston rod of the fourth hydraulic cylinder, the fourth hydraulic cylinder is used to control the movement of the printing head in the horizontal direction, and the third hydraulic cylinder is used to control the vertical movement of the printing head;
  • the second sliding sleeve is fixedly connected with the print head, the second sliding rail is fixedly connected with the outer casing of the fourth hydraulic cylinder, the second sliding rail is sleeved in the second sliding sleeve, and the second sliding rail is second sliding. Snap-on connection;
  • the heat sealing machine comprises a fifth hydraulic cylinder and a hot melt component.
  • the outer casing of the fifth hydraulic cylinder is mounted on the frame, and the hot melt component is fixedly connected with the piston rod of the fifth hydraulic cylinder, and the hot melt component is used to prevent the change of the day.
  • the front plastic film of the packaging bag and the rear plastic film are thermally fused with the anti-coating sealing film, and the production date and the shelf life are sealed in the corresponding production date word hole and the shelf life word hole;
  • the controller is provided with a first sensor, a second sensor, a third sensor, a fourth sensor, a fifth sensor, a sixth sensor, a seventh sensor and an eighth sensor, a first sensor, a second sensor, a third sensor, and a fourth
  • the sensor, the fifth sensor, the sixth sensor, the seventh sensor and the eighth sensor are fixed on the frame;
  • the first sensor is located opposite the first guide sleeve for controlling the stroke of the first pressure hole font;
  • the second sensor is located at the The opposite side of the two guide sleeves is used for controlling the stroke of the second pressure hole font;
  • the third sensor is located opposite the first sensing member of the first sliding seat, for controlling the stroke of the first sliding seat, and using the first sliding seat
  • the printhead moved to control the printer to move in the vertical direction;
  • the fourth sensor is located opposite the second sensing member of the printhead for the horizontal movement of the printhead and the position at which the production date is printed;
  • the fifth sensor is located at the printhead The opposite side of the second sensing member
  • the anti-reform date packaging bag manufacturing method is: using the production date punching machine to punch out the production date word hole in the front plastic film of the heat sealing of the packaging bag; using the shelf life punching machine to punch out the shelf life of the front plastic film of the heat sealing of the packaging bag Word hole; print the production date on the plastic film corresponding to the production date word hole, print the shelf life on the plastic film corresponding to the word hole of the shelf life, set the anti-coating sealing film on the production date and the shelf life, so that the anti-painting sealing film is located Between the front plastic film and the rear plastic film, the production date and the shelf life are covered by the anti-coating sealing film, and the heat sealing machine is used to heat-bond the front plastic film, the anti-coating sealing film and the rear plastic film to prevent the illegal molecular coating production date. And shelf life.
  • the invention has the beneficial effects that the packaging bag of the ordinary food or other articles is manufactured into the anti-change date packaging bag with the anti-shaping function by using the anti-reform date packaging bag manufacturing method, so that the packaging bag has multiple anti-painting functions; First, the production date of the plastic film printing and the front plastic film on the opposite side of the shelf life are provided with the corresponding production date word hole and the shelf life word hole, so that the correction fluid can not change the shape of the production date word hole and the shelf life word hole; second, before The plastic film and the rear plastic film are heat-sealed together with the anti-coating sealing film, and the production date and the shelf life of the printing are sealed by the anti-coating sealing film, so that the modified liquid can not contact the ink of the production date and the shelf life; the anti-reflection of the packaging bag is improved. performance.
  • Fig. 1 is a schematic structural view of an apparatus for manufacturing a weatherproof packaging bag.
  • FIG. 1 is a schematic view showing the structure of the anti-reform date packaging bag manufacturing apparatus, and the manufacturing method of the anti-retrograde date packaging bag 1 requires a method for manufacturing the anti-retrograde date packaging bag; the anti-revision date packaging bag 1 is composed of the front plastic film 2 and the rear plastic film.
  • anti-reform date packaging bag 1 is provided with heat sealing 4; heat sealing 10 is provided with anti-coating production date 5 and anti-shaping life period 6, anti-painting production date 5 by printing production date 7 and corresponding production
  • the date word hole 8 is formed, and the anti-stamping shelf life period 6 is composed of the printing shelf life 9 and the corresponding shelf life word hole 10; the production date 7 and the shelf life period 9 are set on the rear plastic film 3, the production date word hole 8 and the shelf life word hole 10 are provided in On the front plastic film 2, the production date hole 8 of the front plastic film 2 and the shape and size of the production date 7 of the rear plastic film 3 are the same; the shelf life of the front plastic film 2 and the shelf life of the rear plastic film 3 are 10 The shape and size are the same; the production date hole 8 of the front plastic film 2 is located opposite the production date 7 of the rear plastic film 3, and the shelf life word hole 10 of the front plastic film 1 is located at the back plastic The opposite side of the shelf life of the film 3, between the production
  • the angle between the front plastic film 2 on the left side of the anti-modification packaging bag 1 and the rear plastic film 3 on the left side is 5° to 15°, and the front plastic film 2 and the rear plastic film 3 are protected.
  • the front plastic film 2 and the rear plastic film 3 are welded together with the anti-coating sealing film 41;
  • the anti-modification date packaging bag manufacturing apparatus includes a punching printing machine 11, a letterpressing machine 12, a hydraulic device 13, a frame 14 and a controller 15, a punching printing machine 11, a typewriter 12, a hydraulic device 13, and a controller 15 Mounted on the frame 14;
  • the punch printing machine 11 includes a production date punching machine 16, a shelf life punching machine 17, a printing machine 18, a punching pad mold 19, and a first bottom mold 20;
  • the typewriter 12 includes heat sealing Machine 40 and second bottom mold 21;
  • the production date punching machine 16 includes a first pressure hole die 22 and a first hydraulic cylinder 23, and the outer casing of the first hydraulic cylinder 23 is connected to the frame 14, and the piston rod of the first hydraulic cylinder 23 is connected to the first pressure hole die 22.
  • the first pressing hole die 22 is a convex punching die, and the characters of the convex punching die are the same as the characters of the production date, and are used for punching out the production date word hole 8 in the front plastic film 2; in order to prevent the first pressing hole die 22 from swinging during operation
  • the first pressure hole die 22 is provided with a first guide sleeve 24, a first hydraulic cylinder 23 is fixed with a first guiding rod 25, the first guiding rod 25 is sleeved in the first guiding sleeve 24, and the first guiding rod 25 is mechanically coupled with the first guiding sleeve 24;
  • the shelf life puncher 17 includes a second press hole die 26 and a second hydraulic cylinder 27, the outer casing of the second hydraulic cylinder 27 is connected to the frame 14, and the piston rod of the second hydraulic cylinder 27 is connected to the second pressure hole die 26.
  • the second pressing hole die 26 is a convex punch die, and the characters of the convex punch die are the same as the text of the shelf life, and are used for punching the shelf life word hole 10 in the front plastic film 2; in order to avoid the second punch hole die 26 swinging during operation, the second The pressing die 26 is provided with a second guiding sleeve 28, the second hydraulic cylinder 27 is fixed with a second guiding rod 29, the second guiding rod 29 is sleeved in the second guiding sleeve 28, and the second guiding rod 29 and the second guiding sleeve 28 are
  • the third guide sleeve 61 is fixed to the sixth hydraulic cylinder 55, and the third guide rod 62 is sleeved in the third guide sle
  • the punching pad mold 19 includes a sixth hydraulic cylinder 55 and a plug 56.
  • the outer casing of the sixth hydraulic cylinder 55 is connected to the frame 14.
  • the piston rod of the sixth hydraulic cylinder 55 is connected to the inserting plate 56.
  • the inserting plate 56 is located at the first position. The left side of the bottom mold 20; when the production date hole 8 is punched by the production date punching machine 16, or when the shelf life word hole 10 is punched by the shelf life puncher 17, the inserting plate 56 is inserted into the front by the sixth hydraulic cylinder 55. Between the plastic film 2 and the rear plastic film 3, so as not to punch the punched plastic film 3;
  • the printing machine 18 includes a printer 30, a third hydraulic cylinder 31, a fourth hydraulic cylinder 32, a first sliding seat 33, a first sliding rail 34, a second sliding rail 35, and a second sliding sleeve 36, a third hydraulic cylinder 31 and
  • the first slide rail 34 is mounted on the frame 14 , the piston rod of the third hydraulic cylinder 31 is fixedly connected to the first sliding seat 33 , and the first sliding seat 33 is mechanically coupled with the first sliding rail 34 , and the third hydraulic cylinder 31 is utilized.
  • the first sliding seat 33 is controlled to move in the vertical direction; the fourth hydraulic cylinder 32 and the printer 30 are mounted on the first sliding seat 33, and the print head 37 of the printer 30 is fixedly connected with the piston rod of the fourth hydraulic cylinder 32, and the fourth hydraulic pressure is utilized.
  • the cylinder 32 controls the print head 37 to move in the horizontal direction, and the third hydraulic cylinder 31 controls the print head 37 to move in the vertical direction; in order to implement the vertical movement and the horizontal movement control of the print head 37, the axis of the piston rod of the third hydraulic cylinder 31 and the The axis of the piston rod of the four hydraulic cylinder 32 is vertical;
  • the second sliding sleeve 36 is fixedly connected to the printing head 37, the second sliding rail 35 is fixedly connected to the outer casing of the fourth hydraulic cylinder 32, and the second sliding rail 35 is sleeved on the second sliding sleeve 36, and the second The slide rail 35 is mechanically coupled with the second sliding sleeve 36;
  • the heat sealing machine 40 includes a fifth hydraulic cylinder 38 and a hot melt element 39, the fifth hydraulic cylinder 38
  • the outer casing is mounted on the frame 14, and the hot-melt element 39 is fixedly connected to the piston rod of the fifth hydraulic cylinder 38, and the front plastic film 2 and the rear plastic film 3 of the anti-revision bag 1 are protected from the anti-coating seal by the hot-melt element 39.
  • the film 41 is hot-melt connected, and the production date 7 and the shelf life 9 are sealed in the corresponding production date word hole 8 and the shelf life word hole 10;
  • the controller 15 is provided with a first sensor 42, a second sensor 43, a third sensor 44, a fourth sensor 45, a fifth sensor 46, a sixth sensor 47, a seventh sensor 48 and an eighth sensor 57, the first sensor 42,
  • the second sensor 43, the third sensor 44, the fourth sensor 45, the fifth sensor 46, the sixth sensor 47, the seventh sensor 48, and the eighth sensor 57 are fixed on the frame 14;
  • the first sensor 42 is located in the first guide sleeve Opposite to 24, for controlling the stroke of the first orifice die 22;
  • the second sensor 43 is located opposite the second guide sleeve 28 for controlling the stroke of the second orifice die 26;
  • the third sensor 44 is located at the first slider Opposite to the first sensing member 49 of 33, for controlling the stroke of the first slider 33, and for controlling the movement of the print head 37 of the printer 30 in the vertical direction by the movement of the first slider 33;
  • the fourth sensor 45 is located at the print head The opposite side of the second sensing
  • the sixth sensor 47 is located on the first bottom mold 20 for detecting whether the first bottom mold 20 is placed in the anti-modification date package 1; the seventh sensor 48 is located on the second bottom mold 21, It is used to detect whether the second bottom mold 21 is placed in the anti-modification date packaging bag 1; the eighth sensor 57 is located opposite the connecting plate 58 of the interposer 56 for controlling the stroke of the interposer 56.
  • the controller 15 is provided with a program changeover switch 51 for controlling automatic control and manual control of the anti-reform date packaging bag manufacturing device; the controller 15 is provided with the first The manual switch 52 is used for manual control of the punching press 11; the controller 15 is provided with a second manual switch 53 for manual control of the typewriter 12; the hydraulic circuit of the hydraulic device 13 and the first hydraulic cylinder 23.
  • the control circuit is connected; the controller 15 is connected to the first sensor 42, the second sensor 43, the third sensor 44, the fourth sensor 45, the fifth sensor 46, the sixth sensor 47, and the seventh sensor 48 through a control line.
  • the controller 15 In order to control the operation of the anti-modification date packaging bag manufacturing apparatus by the controller 15, the controller 15 is connected to the control circuit of the printing machine 18, and the controller 15 is provided with a display screen 54, and the display screen 54 is provided Touch key to set the print date and shelf life of the print.
  • the first press hole die 22 is a convex die, and the characters of the punch die are the same as the characters of the production date, and are used for punching the production date word hole 8 in the front plastic film 2.
  • the second pressing hole die 26 is a convex punching die, and the characters of the convex punching die are the same as the characters of the shelf life, and are used for punching out the shelf life word hole 10 in the front plastic film 2.
  • an acute angle of 5° to 15° is formed between the front plastic film 2 and the rear plastic film 3 at the left end of the anti-modification packaging bag to facilitate the punching pad mold.
  • 19 is inserted between the front plastic film 2 and the rear plastic film 3
  • the punch printing machine 11 comprises an acute angle template
  • the acute angle of the acute angle template is 5° to 15°
  • the width of the acute angle template is smaller than the width of the port of the anti-reform date package.
  • the acute angle template 59 is inserted between the front plastic film 2 and the rear plastic film 3; before the anti-replacement bag is placed in the first bottom mold 20.
  • the manufacturing method of the anti-reform date packaging bag is: punching out the production date word hole 8 by using the production date punching machine 16 in the front plastic film 2 of the heat sealing cover 4 of the packaging bag; using the heat-sealing sealing machine 17 in the heat sealing of the packaging bag
  • the front plastic film 2 is stamped out of the shelf life word hole 10; the production date 7 is printed on the rear plastic film 3 corresponding to the production date word hole 8, and the shelf life is 9 on the back plastic film 3 corresponding to the shelf life word hole 10, on the production date 7
  • a protective coating film 41 is disposed on the surface of the shelf life, and the anti-coating sealing film 41 is disposed between the front plastic film 2 and the rear plastic film 3, and the production date 7 and the shelf life 9 are covered by the anti-coating sealing film 41, and the heat sealing machine is used.
  • 40 will be heat-sealed with the front plastic film 2, the anti-alteration sealing film 41 and the rear plastic film 3 to prevent the illegal molecules from altering the date of manufacture and the shelf life.
  • the manufacturing process of the anti-reform date packaging bag is: stamping out the production date word hole 8 ⁇ stamping shelf life word hole 10 ⁇ printing production date 7 ⁇ printing shelf life 9 ⁇ production date 7 and shelf life 9 heat sealing; the manufacturing process of the anti-reform date packaging bag is specific Yes:
  • Stamping out the production date word hole 8 placing the anti-modification date packaging bag 1 of the packaged food or article in the first bottom mold 20, and controlling the sixth hydraulic cylinder 55 to insert the insertion plate 56 into the front plastic film 2 by the controller 15
  • the first hydraulic cylinder 23 of the production date punching machine 16 is controlled by the controller 15 to drive the first pressure hole die 22 to punch the production date word hole 8 on the front plastic film 2, and the production date is punched.
  • the controller 15 controls the first hydraulic cylinder 23 to drive the first pressure hole font 22 to be reset;
  • Stamping shelf life word hole 10 After the first pressure hole word mode 22 is reset, the controller 15 controls the protection The second hydraulic cylinder 27 of the tempering punching machine 17 drives the second pressing hole die 26 to punch out the shelf life word hole 10 on the front plastic film 2; after flushing the shelf life word hole 10, the controller 15 controls the second hydraulic cylinder 27 to drive The second pressure hole font 26 is reset;
  • Printing production date 7 After the second pressing hole die 26 is reset, the third hydraulic cylinder 31 and the fourth hydraulic cylinder 32 of the printing press 18 are controlled by the controller 15 to drive the printing head 37 to move in the vertical direction and in the horizontal direction to make the print head
  • the printing part of 37 is located at the position of the production date word hole 8, and the controller 15 is used to control the position of the print head 37 on the production date word hole 8 and the printing date 7 of the rear plastic film 3;
  • Print shelf life 9 After the production date 7 is printed, the third hydraulic cylinder 31 and the fourth hydraulic cylinder 32 of the printing press 18 are controlled by the controller 15 to drive the print head 37 to move in the vertical direction and in the horizontal direction, so that the printing unit of the print head 37 is printed. Located at the position of the shelf life word hole 10, the controller 15 is used to control the position of the print head 37 in the shelf life word hole 10 and the print period of the back plastic film 3;
  • Production date 7 and shelf life 9 heat sealing After the shelf life of 9 is printed, the anti-retrograde date packaging bag 1 is placed in the second bottom mold 21, and the anti-painting sealing film 41 is inserted between the front plastic film 2 and the rear plastic film 3, and utilized.
  • the controller 15 controls the fifth hydraulic cylinder 38 of the heat sealing machine 40 to drive the hot melt element 39 to thermally seal the front plastic film 2 and the rear plastic film 3 to the anti-coating sealing film 41, and seals the production date 7 and the shelf life 9.
  • the front plastic film 2 and the rear plastic film 3 at the packaging opening are An acute angle template 59 having an acute angle of 5° to 15° is inserted therebetween, and then the front plastic film 2 and the rear plastic film 3 adjacent to the sharp corner of the acute angle template 59 are heat-sealed to form the heat-sealed front plastic film 2 and the rear plastic film 3.
  • An angle of 5° to 15° is left therebetween to facilitate insertion of the insert 56 between the front plastic film 2 and the rear plastic film 3 before punching out the production date hole 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
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Abstract

一种防改日期包装袋制造方法，该方法所使用的设备包括打孔印刷机（11）、封字机（12）、液压装置（13）、机架（14）以及控制器（15）。打孔印刷机（11）包括有生产日期打孔机（16）、保质期打孔机（17）、印刷机（18）、打孔垫模（19）以及第一底模（20）。封字机（12）包括有热合机（40）以及第二底模（21）。防改日期包装袋制造方法的流程是：冲压生产日期字孔→冲压保质期字孔→印刷生产日期→印刷保质期→生产日期以及保质期热合。采用该方法制成的包装袋具有多重防涂改功能。

Description

防改日期包装袋制造方法 技术领域
本发明涉及一种包装袋的制造方法，特别是一种防改日期包装袋制造方法。
背景技术
目前，产品的包装袋，特别是食品包装袋，于包装袋打印的包装日期以及保质期容易被不法分子利用涂改药液涂改，损坏消费者的权益；制造一种防改日期包装袋，需要一种防改日期包装袋制造方法。
发明内容
本发明的目的是克服现有技术的不足，提供一种防改日期包装袋制造方法，用于制造一种防改日期包装袋，用于防止不法分子利用涂改药液涂改包装袋的生产日期以及保质期，维护消费者的权益。
本发明所采用的技术方案是：制造一种防改日期包装袋需要一种防改日期包装袋制造方法；防改日期包装袋由前塑料薄膜与后塑料薄膜热合熔接构成，防改日期包装袋设有热合封口；热合封口的旁边设有防涂改生产日期以及防涂改保质期，防涂改生产日期由印刷的生产日期以及对应的生产日期字孔构成，防涂改保质期由印刷的保质期以及对应的保质期字孔构成；生产日期以及保质期印刷于后塑料薄膜上，生产日期字孔以及保质期字孔设于前塑料薄膜上，前塑料薄膜的生产日期字孔与后塑料薄膜的生产日期的形状以及尺寸大小相同；前塑料薄膜的保质期字孔与后塑料薄膜的保质期的形状以及尺寸大小相同；前塑料薄膜的生产日期字孔位于后塑料薄膜的生产日期的对面，前塑料薄膜的保质期字孔位于后塑料薄膜的保质期的对面，生产日期与生产日期字孔之间以及保质期与保质期字孔之间设有防涂改封口膜，将印刷的生产日期以及保质期密封于防涂改封口膜里面；
防改日期包装袋制造设备包括有打孔印刷机、封字机、液压装置、机架以及控制器，打孔印刷机、封字机、液压装置以及控制器安装于机架上； 打孔印刷机包括有生产日期打孔机、保质期打孔机、印刷机、打孔垫模以及第一底模；封字机包括有热合机以及第二底模；
生产日期打孔机包括有第一压孔字模以及第一液压缸，第一液压缸的外壳与机架连接，第一液压缸的活塞杆与第一压孔字模连接，第一压孔字模为凸字冲模，凸字冲模的文字与生产日期的文字相同，用于在前塑料薄膜冲压出生产日期字孔；为了避免第一压孔字模运行时摆动，第一压孔字模设有第一导套，第一液压缸固定有第一导杆，第一导杆套在第一导套内，第一导杆与第一导套动配合连接；
保质期打孔机包括有第二压孔字模以及第二液压缸，第二液压缸的外壳与机架连接，第二液压缸的活塞杆与第二压孔字模连接，第二压孔字模为凸字冲模，凸字冲模的文字与保质期的文字相同，用于在前塑料薄膜冲压出保质期字孔；为了避免第二压孔字模运行时摆动，第二压孔字模设有第二导套，第二液压缸固定有第二导杆，第二导杆套在第二导套内，第二导杆与第二导套动配合连接；
打孔垫模包括有第六液压缸以及插板，第六液压缸的外壳与机架连接，第六液压缸的活塞杆与插板连接，插板位于第一底模的左侧；生产日期打孔机冲压生产日期字孔以及保质期打孔机冲压保质期字孔时，利用第六液压缸将插板插入到前塑料薄膜与后塑料薄膜之间，以免冲孔冲到后塑料薄膜；
印刷机包括有打印机、第三液压缸、第四液压缸、第一滑座、第一滑轨、第二滑轨以及第二滑套，第三液压缸以及第一滑轨安装于机架上，第三液压缸的活塞杆与第一滑座固定连接，第一滑座与第一滑轨动配合连接，利用第三液压缸控制第一滑座沿垂直方向移动；第四液压缸以及打印机安装于第一滑座上，打印机的打印头与第四液压缸的活塞杆固定连接，利用第四液压缸控制打印头沿水平方向移动，利用第三液压缸控制打印头沿垂直方向移动；
为了避免打印头摆动，第二滑套与打印头固定连接，第二滑轨与第四液压缸的外壳固定连接，第二滑轨套于第二滑套内，第二滑轨与第二滑套动配合连接；
热合机包括有第五液压缸以及热熔元件，第五液压缸的外壳安装于机架上，热熔元件与第五液压缸的活塞杆固定连接，利用热熔元件将防改日 期包装袋的前塑料薄膜以及后塑料薄膜与防涂改封口膜热熔连接，将生产日期以及保质期密封于对应的生产日期字孔以及保质期字孔里面；
控制器设有第一传感器、第二传感器、第三传感器、第四传感器、第五传感器、第六传感器、第七传感器以及第八传感器，第一传感器、第二传感器、第三传感器、第四传感器、第五传感器、第六传感器、第七传感器以及第八传感器固定于机架上；第一传感器位于第一导套的对面，用于控制第一压孔字模的行程；第二传感器位于第二导套的对面，用于控制第二压孔字模的行程；第三传感器位于第一滑座的第一感应件的对面，用于控制第一滑座的行程，以及利用第一滑座的移动来控制打印机的打印头沿垂直方向移动；第四传感器位于打印头的第二感应件的对面，用于打印头的水平移动行程以及控制生产日期打印的位置；第五传感器位于打印头的第二感应件的对面，用于打印头的水平移动行程以及控制保质期打印的位置；第六传感器位于第一底模上，用于检测第一底模是否放入防改日期包装袋；第七传感器位于第二底模上，用于检测第二底模是否放入防改日期包装袋；第八传感器位于插板的连接板的对面，用于控制插板行程。
防改日期包装袋制造方法是：利用生产日期打孔机于包装袋的热合封口的前塑料薄膜冲压出生产日期字孔；利用保质期打孔机于包装袋的热合封口的前塑料薄膜冲压出保质期字孔；于生产日期字孔对应的后塑料薄膜上印刷生产日期，于保质期字孔对应的后塑料薄膜上印刷保质期，于生产日期以及保质期面上设置防涂改封口膜，使防涂改封口膜位于前塑料薄膜与后塑料薄膜之间，利用防涂改封口膜将生产日期以及保质期盖住，利用热合机将与前塑料薄膜、防涂改封口膜以及后塑料薄膜热合在一起，防止不法分子涂改生产日期以及保质期。
本发明的有益效果是：利用防改日期包装袋制造方法，将普通的食品或者其他物品的包装袋制造成为具有防涂改功能的防改日期包装袋，使包装袋具有多重的防涂改功能；其一，后塑料薄膜印刷的生产日期以及保质期对面的前塑料薄膜上设有对应的生产日期字孔以及保质期字孔，使涂改液不能改变生产日期字孔以及保质期字孔的形状；其二，前塑料薄膜以及后塑料薄膜与防涂改封口膜热合熔接在一起，利用防涂改封口膜封住印刷的生产日期以及保质期，使涂改药液不能接触生产日期以及保质期的油墨；提高了包装袋的防涂改性能。
附图说明
图1是防改日期包装袋制造设备的结构示意图。
具体实施方式
下面结合附图对本发明进行进一步的说明：
图1所示的防改日期包装袋制造设备结构示意图，制造一种防改日期包装袋1需要一种防改日期包装袋制造方法；防改日期包装袋1由前塑料薄膜2与后塑料薄膜3热合熔接构成，防改日期包装袋1设有热合封口4；热合封口4的旁边设有防涂改生产日期5以及防涂改保质期6，防涂改生产日期5由印刷的生产日期7以及对应的生产日期字孔8构成，防涂改保质期6由印刷的保质期9以及对应的保质期字孔10构成；生产日期7以及保质期9设于后塑料薄膜3上，生产日期字孔8以及保质期字孔10设于前塑料薄膜2上，前塑料薄膜2的生产日期字孔8与后塑料薄膜3的生产日期7的形状以及尺寸大小相同；前塑料薄膜2的保质期字孔10与后塑料薄膜3的保质期10的形状以及尺寸大小相同；前塑料薄膜2的生产日期字孔8位于后塑料薄膜3的生产日期7的对面，前塑料薄膜1的保质期字孔10位于后塑料薄膜3的保质期9的对面，生产日期7与生产日期字孔8之间以及保质期6与保质期字孔10之间设有防涂改封口膜41；在前塑料薄膜2以及后塑料薄膜3与防涂改封口膜41热合熔接之前，防改日期包装袋1左边的前塑料薄膜2与左边的后塑料薄膜3之间的夹角为5°至15°角，前塑料薄膜2以及后塑料薄膜3与防涂改封口膜41热合熔接后，前塑料薄膜2以及后塑料薄膜3与防涂改封口膜41熔接在一起；
防改日期包装袋制造设备包括有打孔印刷机11、封字机12、液压装置13、机架14以及控制器15，打孔印刷机11、封字机12、液压装置13以及控制器15安装于机架14上；打孔印刷机11包括有生产日期打孔机16、保质期打孔机17、印刷机18、打孔垫模19以及第一底模20；封字机12包括有热合机40以及第二底模21；
生产日期打孔机16包括有第一压孔字模22以及第一液压缸23，第一液压缸23的外壳与机架14连接，第一液压缸23的活塞杆与第一压孔字模22连接，第一压孔字模22为凸字冲模，凸字冲模的文字与生产日期的文字相同，用于在前塑料薄膜2冲压出生产日期字孔8；为了避免第一压孔字模22运行时摆动，第一压孔字模22设有第一导套24，第一液压缸 23固定有第一导杆25，第一导杆25套在第一导套24内，第一导杆25与第一导套24动配合连接；
保质期打孔机17包括有第二压孔字模26以及第二液压缸27，第二液压缸27的外壳与机架14连接，第二液压缸27的活塞杆与第二压孔字模26连接，第二压孔字模26为凸字冲模，凸字冲模的文字与保质期的文字相同，用于在前塑料薄膜2冲压出保质期字孔10；为了避免第二压孔字模26运行时摆动，第二压孔字模26设有第二导套28，第二液压缸27固定有第二导杆29，第二导杆29套在第二导套28内，第二导杆29与第二导套28动配合连接；为了避免插板56运行时摆动，插板56设有第三导套61，第六液压缸55固定有第三导杆62，第三导杆62套在第三导套61内，第三导杆62与第三导套61动配合连接；
打孔垫模19包括有第六液压缸55以及插板56，第六液压缸55的外壳与机架14连接，第六液压缸55的活塞杆与插板56连接，插板56位于第一底模20的左侧；当利用生产日期打孔机16冲压生产日期字孔8时，或者利用保质期打孔机17冲压保质期字孔10时，利用第六液压缸55将插板56插入到前塑料薄膜2与后塑料薄膜3之间，以免冲孔冲到后塑料薄膜3；
印刷机18包括有打印机30、第三液压缸31、第四液压缸32、第一滑座33、第一滑轨34、第二滑轨35以及第二滑套36，第三液压缸31以及第一滑轨34安装于机架14上，第三液压缸31的活塞杆与第一滑座33固定连接，第一滑座33与第一滑轨34动配合连接，利用第三液压缸31控制第一滑座33沿垂直方向移动；第四液压缸32以及打印机30安装于第一滑座33上，打印机30的打印头37与第四液压缸32的活塞杆固定连接，利用第四液压缸32控制打印头37沿水平方向移动，利用第三液压缸31控制打印头37沿垂直方向移动；为了实施打印头37的垂直移动以及水平移动控制，第三液压缸31活塞杆的轴线与第四液压缸32活塞杆的轴线垂直；
为了避免打印头37摆动，第二滑套36与打印头37固定连接，第二滑轨35与第四液压缸32的外壳固定连接，第二滑轨35套于第二滑套36，第二滑轨35与第二滑套36动配合连接；
热合机40包括有第五液压缸38以及热熔元件39，第五液压缸38的 外壳安装于机架14上，热熔元件39与第五液压缸38的活塞杆固定连接，利用热熔元件39将防改日期包装袋1的前塑料薄膜2以及后塑料薄膜3与防涂改封口膜41热熔连接，将生产日期7以及保质期9密封于对应的生产日期字孔8以及保质期字孔10里面；
控制器15设有第一传感器42、第二传感器43、第三传感器44、第四传感器45、第五传感器46、第六传感器47、第七传感器48以及第八传感器57，第一传感器42、第二传感器43、第三传感器44、第四传感器45、第五传感器46、第六传感器47、第七传感器48以及第八传感器57固定于机架14上；第一传感器42位于第一导套24的对面，用于控制第一压孔字模22的行程；第二传感器43位于第二导套28的对面，用于控制第二压孔字模26的行程；第三传感器44位于第一滑座33的第一感应件49的对面，用于控制第一滑座33的行程，以及利用第一滑座33的移动来控制打印机30的打印头37沿垂直方向移动；第四传感器45位于打印头37的第二感应件50的对面，用于打印头37的水平移动行程以及控制生产日期5打印的位置；第五传感器46位于打印头37的第二感应件50的对面，用于打印头37的水平移动行程以及控制保质期6打印的位置；第六传感器47位于第一底模20上，用于检测第一底模20是否放入防改日期包装袋1；第七传感器48位于第二底模21上，用于检测第二底模21是否放入防改日期包装袋1；第八传感器57位于插板56的连接板58的对面，用于控制插板56行程。
为了实施防改日期包装袋制造设备的自动控制以及手动控制，控制器15设有程序转换开关51，用于控制防改日期包装袋制造设备的自动控制以及手动控制；控制器15设有第一手动开关52，用于打孔印刷机11的手动控制；控制器15设有第第二手动开关53，用于封字机12的手动控制；液压装置13的液压油路与第一液压缸23、第二液压缸27、第三液压缸31、第四液压缸32、第四液压缸32、第五液压缸38以及第六液压缸55的液压油路连接；控制器15与液压装置13的控制电路连接；控制器15通过控制线与第一传感器42、第二传感器43、第三传感器44、第四传感器45、第五传感器46、第六传感器47以及第七传感器48连接。
为了利用控制器15控制防改日期包装袋制造设备的工作，控制器15与印刷机18的控制电路连接，控制器15设有显示屏54，显示屏54设有 触摸键，用于设置打印的生产日期以及保质期。
第一压孔字模22为凸字冲模，凸字冲模的文字与生产日期的文字相同，用于在前塑料薄膜2冲压出生产日期字孔8。第二压孔字模26为凸字冲模，凸字冲模的文字与保质期的文字相同，用于在前塑料薄膜2冲压出保质期字孔10。
为了使防改日期包装袋装好食物或者其他物品封口后，防改日期包装袋左端的前塑料薄膜2与后塑料薄膜3之间形成一个5°至15°的锐角，以方便打孔垫模19插入前塑料薄膜2与后塑料薄膜3之间，打孔印刷机11包括有锐角模板，锐角模板的锐角为5°至15°角，锐角模板的宽度小于防改日期包装袋端口的宽度，以便防改日期包装袋热合封口时，锐角模板59插入前塑料薄膜2与后塑料薄膜3之间；在防改日期包装袋放入第一底模20之前。
防改日期包装袋制造方法是：利用生产日期打孔机16于包装袋的热合封口4的前塑料薄膜2冲压出生产日期字孔8；利用保质期打孔机17于包装袋的热合封口4的前塑料薄膜2冲压出保质期字孔10；于生产日期字孔8对应的后塑料薄膜3上印刷生产日期7，于保质期字孔10对应的后塑料薄膜3上印刷改保质期9，于生产日期7以及保质期9面上设置防涂改封口膜41，使防涂改封口膜41位于前塑料薄膜2与后塑料薄膜3之间，利用防涂改封口膜41将生产日期7以及保质期9盖住，利用热合机40将与前塑料薄膜2、防涂改封口膜41以及后塑料薄膜3热合在一起，防止不法分子涂改生产日期以及保质期。
防改日期包装袋的制造流程是：冲压出生产日期字孔8→冲压保质期字孔10→印刷生产日期7→印刷保质期9→生产日期7以及保质期9热合；防改日期包装袋的制造流程具体是：
冲压出生产日期字孔8：将已经封口包装食品或者物品的防改日期包装袋1放置于第一底模20，利用控制器15控制第六液压缸55将插板56插入到前塑料薄膜2与后塑料薄膜3之间，利用控制器15控制生产日期打孔机16的第一液压缸23带动第一压孔字模22于前塑料薄膜2上冲压出生产日期字孔8，冲好生产日期字孔8后，控制器15控制第一液压缸23带动第一压孔字模22复位；
冲压保质期字孔10：第一压孔字模22复位后，利用控制器15控制保 质期打孔机17的第二液压缸27带动第二压孔字模26于前塑料薄膜2上冲压出保质期字孔10；冲好保质期字孔10后，控制器15控制第二液压缸27带动第二压孔字模26复位；
印刷生产日期7：第二压孔字模26复位后，利用控制器15控制印刷机18的第三液压缸31以及第四液压缸32带动打印头37沿垂直方向以及沿水平方向移动，使打印头37的打印部件位于生产日期字孔8的位置，利用控制器15控制打印头37于生产日期字孔8的位置以及后塑料薄膜3面上打印生产日期7；
印刷保质期9：生产日期7印刷后，利用控制器15控制印刷机18的第三液压缸31以及第四液压缸32带动打印头37沿垂直方向以及沿水平方向移动，使打印头37的打印部件位于保质期字孔10的位置，利用控制器15控制打印头37于保质期字孔10的位置以及后塑料薄膜3面上打印保质期9；
生产日期7以及保质期9热合：保质期9印刷后，将防改日期包装袋1置于第二底模21内，并将防涂改封口膜41插入前塑料薄膜2与后塑料薄膜3之间，利用控制器15控制热合机40的第五液压缸38带动热熔元件39将前塑料薄膜2以及后塑料薄膜3与防涂改封口膜41热合连接，将生产日期7以及保质期9密封。
为了方便插板56插入到前塑料薄膜2与后塑料薄膜3之间，防改日期包装袋装好食物或者其他物品利用热合设备封装时，于包装口的前塑料薄膜2与后塑料薄膜3之间插入锐角为5°至15°角的锐角模板59，然后再将锐角模板59尖角旁边的前塑料薄膜2与后塑料薄膜3热合连接，使热合后的前塑料薄膜2与后塑料薄膜3之间留有5°至15°角，以方便冲压出生产日期字孔8前将插板56插入到前塑料薄膜2与后塑料薄膜3之间。

Claims (4)

  1. 防改日期包装袋制造方法，制造一种防改日期包装袋(1)需要一种防改日期包装袋制造方法；防改日期包装袋(1)由前塑料薄膜(2)与后塑料薄膜(3)热合熔接构成，防改日期包装袋(1)设有热合封口(4)；热合封口(4)的旁边设有防涂改生产日期(5)以及防涂改保质期(6)，防涂改生产日期(5)由生产日期(7)以及对应的生产日期字孔(8)构成，防涂改保质期(6)由保质期(9)以及对应的保质期字孔(10)构成；生产日期(7)以及保质期(9)设于后塑料薄膜(3)上，生产日期字孔(8)以及保质期字孔(10)设于前塑料薄膜(2)上，前塑料薄膜(2)的生产日期字孔(8)与后塑料薄膜(3)的生产日期(7)的形状以及尺寸大小相同；前塑料薄膜(2)的保质期字孔(10)与后塑料薄膜(3)的保质期(10)的形状以及尺寸大小相同；前塑料薄膜(2)的生产日期字孔(8)位于后塑料薄膜(3)的生产日期(7)的对面，前塑料薄膜(1)的保质期字孔(10)位于后塑料薄膜(3)的保质期(9)的对面，生产日期(7)与生产日期字孔(8)之间以及保质期(6)与保质期字孔(10)之间设有防涂改封口膜(41)；在前塑料薄膜(2)与后塑料薄膜(3)热合防涂改封口膜(41)之前，防改日期包装袋(1)左边的前塑料薄膜(2)与左边的后塑料薄膜(3)之间的夹角为5°至15°角，前塑料薄膜(2)以及后塑料薄膜(3)与防涂改封口膜(41)热合后，前塑料薄膜(2)以及后塑料薄膜(3)与防涂改封口膜(41)熔接在一起；
    防改日期包装袋制造设备包括有打孔印刷机(11)、封字机(12)、液压装置(13)、机架(14)以及控制器(15)，打孔印刷机(11)、封字机(12)、液压装置(13)以及控制器(15)安装于机架(14)上；打孔印刷机(11)包括有生产日期打孔机(16)、保质期打孔机(17)、印刷机(18)、打孔垫模(19)以及第一底模(20)；封字机(12)包括有热合机(40)以及第二底模(21)；
    生产日期打孔机(16)包括有第一压孔字模(22)以及第一液压缸(23)，第一液压缸(23)的外壳与机架(14)连接，第一液压缸(23)的活塞杆与第一压孔字模(22)连接，第一压孔字模(22)为凸字模，凸字模的文字与生产日期的文字相同，用于在前塑料薄膜(2)压出生产日期字孔(8)； 为了避免第一压孔字模(22)运行时摆动，第一压孔字模(22)设有第一导套(24)，第一液压缸(23)固定有第一导杆(25)，第一导杆(25)套在第一导套(24)内，第一导杆(25)与第一导套(24)动配合连接；
    保质期打孔机(17)包括有第二压孔字模(26)以及第二液压缸(27)，第二液压缸(27)的外壳与机架(14)连接，第二液压缸(27)的活塞杆与第二压孔字模(26)连接，第二压孔字模(26)为凸字模，凸字模的文字与保质期的文字相同，用于在前塑料薄膜(2)压出保质期字孔(10)；为了避免第二压孔字模(26)运行时摆动，第二压孔字模(26)设有第二导套(28)，第二液压缸(27)固定有第二导杆(29)，第二导杆(29)套在第二导套(28)内，第二导杆(29)与第二导套(28)动配合连接；
    打孔垫模(19)包括有第六液压缸(55)以及插板(56)，第六液压缸(55)的外壳与机架(14)连接，第六液压缸(55)的活塞杆与插板(56)连接，插板(56)位于第一底模(20)的左侧；生产日期打孔机(16)冲压生产日期字孔(8)以及保质期打孔机(17)冲压保质期字孔(10)时，利用第六液压缸(55)将插板(56)插入到前塑料薄膜(2)与后塑料薄膜(3)，以免冲孔冲到后塑料薄膜(3)；
    印刷机(18)包括有打印机(30)、第三液压缸(31)、第四液压缸(32)、第一滑座(33)、第一滑轨(34)、第二滑轨(35)以及第二滑套(36)，第三液压缸(31)以及第一滑轨(34)安装于机架(14)上，第三液压缸(31)的活塞杆与第一滑座(33)固定连接，第一滑座(33)与第一滑轨(34)动配合连接，利用第三液压缸(31)控制第一滑座(33)沿垂直方向移动；
    第四液压缸(32)以及打印机(30)安装于第一滑座(33)上，打印机(30)的打印头(37)与第四液压缸(32)的活塞杆固定连接，利用第四液压缸(32)控制打印头(37)沿水平方向移动，利用第三液压缸(31)控制打印头(37)沿垂直方向移动；
    为了避免打印头(37)摆动，第二滑套(36)与打印头(37)固定连接，第二滑轨(35)与第四液压缸(32)的外壳固定连接，第二滑轨(35)套于第二滑套(36)，第二滑轨(35)与第二滑套(36)动配合连接；
    热合机(40)包括有第五液压缸(38)以及热熔元件(39)，第五液压缸(38)的外壳安装于机架(14)上，热熔元件(39)与第五液压缸(38) 的活塞杆固定连接，利用热熔元件(39)将防改日期包装袋(1)的前塑料薄膜(2)以及后塑料薄膜(3)与防涂改封口膜(41)热熔连接，将生产日期(7)以及保质期(9)密封于对应的生产日期字孔(8)以及保质期字孔(10)里面；
    控制器(15)设有第一传感器(42)、第二传感器(43)、第三传感器(44)、第四传感器(45)、第五传感器(46)、第六传感器(47)、第七传感器(48)以及第八传感器(57)，第一传感器(42)、第二传感器(43)、第三传感器(44)、第四传感器(45)、第五传感器(46)、第六传感器(47)、第七传感器(48)以及第八传感器(57)固定于机架(14)上；第一传感器(42)位于第一导套(24)的对面，用于控制第一压孔字模(22)的行程；第二传感器(43)位于第二导套(28)的对面，用于控制第二压孔字模(26)的行程；第三传感器(44)位于第一滑座(33)的第一感应件(49)的对面，用于控制第一滑座(33)的行程，以及利用第一滑座(33)的移动来控制打印机(30)的打印头(37)沿垂直方向移动；第四传感器(45)位于打印头(37)的第二感应件(50)的对面，用于打印头(37)的水平移动行程以及控制生产日期(5)打印的位置；第五传感器(46)位于打印头(37)的第二感应件(50)的对面，用于打印头(37)的水平移动行程以及控制保质期(6)打印的位置；第六传感器(47)位于第一底模(20)上，用于检测第一底模(20)是否放入防改日期包装袋(1)；第七传感器(48)位于第二底模(21)上，用于第二底模(21)是否放入防改日期包装袋(1)；第八传感器(57)位于插板(56)的连接板(58)的对面，用于控制插板(56)行程；
    控制器(15)设有程序转换开关(51)，用于控制防改日期包装袋制造方法的自动控制以及手动控制；控制器(15)设有第一手动开关(52)，用于打孔印刷机(11)的手动控制；控制器(15)设有第第二手动开关(53)，用于封字机(12)的手动控制；液压装置(13)的液压油路与第一液压缸(23)、第二液压缸(27)、第三液压缸(31)、第四液压缸(32)、第四液压缸(32)、第五液压缸(38)以及第六液压缸(55)的液压油路连接；控制器(15)与液压装置(13)的控制电路连接；控制器(15)通过控制线与第一传感器(42)、第二传感器(43)、第三传感器(44)、第四传感器(45)、第五传感器(46)、第六传感器(47)以及第七传感器(48)连 接；
    其特征在于：所述的防改日期包装袋制造方法是：利用生产日期打孔机(16)于包装袋的热合封口(4)的前塑料薄膜(2)冲压出生产日期字孔(8)；利用保质期打孔机(17)于包装袋的热合封口(4)的前塑料薄膜(2)冲压出保质期字孔(10)；于生产日期字孔(8)对应的后塑料薄膜(3)上印刷生产日期(7)，于保质期字孔(10)对应的后塑料薄膜(3)上印刷保质期(9)，于生产日期(7)以及保质期(9)面上设置防涂改封口膜(41)，使防涂改封口膜(41)位于前塑料薄膜(2)与后塑料薄膜(3)之间，利用防涂改封口膜(41)将防涂改生产日期(5)以及防涂改保质期(6)盖住，利用热合机(40)将前塑料薄膜(2)、防涂改封口膜(41)以及后塑料薄膜(3)热合在一起，防止不法分子涂改生产日期以及保质期。
  2. 根据权利要求1所述的防改日期包装袋制造方法，其特征在于：所述的防改日期包装袋的制造流程是：冲压出生产日期字孔(8)→冲压保质期字孔(10)→印刷生产日期(7)→印刷保质期(9)→生产日期(7)以及保质期(9)热合。
  3. 根据权利要求2所述的防改日期包装袋制造方法，其特征在于：所述的防改日期包装袋的制造流程具体是：
    冲压出生产日期字孔(8)：将已经封口包装食品或者物品的防改日期包装袋(1)放置于第一底模(20)，利用控制器(15)控制第六液压缸(55)将插板(56)插入到前塑料薄膜(2)与后塑料薄膜(3)之间，利用控制器(15)控制生产日期打孔机(16)的第一液压缸(23)带动第一压孔字模(22)于前塑料薄膜(2)上冲压出生产日期字孔(8)，冲好生产日期字孔(8)后，控制器(15)控制第一液压缸(23)带动第一压孔字模(22)复位；
    冲压保质期字孔(10)：第一压孔字模(22)复位后，利用控制器(15)控制保质期打孔机(17)的第二液压缸(27)带动第二压孔字模(26)于前塑料薄膜(2)上冲压出保质期字孔(10)；冲好保质期字孔(10)后，控制器(15)控制第二液压缸(27)带动第二压孔字模(26)复位；
    印刷生产日期(7)：第二压孔字模(26)复位后，利用控制器(15)控制印刷机(18)的第三液压缸(31)以及第四液压缸(32)带动打印头 (37)沿垂直方向以及沿水平方向移动，使打印头(37)的打印部件位于生产日期字孔(8)的位置，利用控制器(15)控制打印头(37)于生产日期字孔(8)的位置以及后塑料薄膜(3)面上打印生产日期(7)；
    印刷保质期(9)：生产日期(7)印刷后，利用控制器(15)控制印刷机(18)的第三液压缸(31)以及第四液压缸(32)带动打印头(37)沿垂直方向以及沿水平方向移动，使打印头(37)的打印部件位于保质期字孔(10)的位置，利用控制器(15)控制打印头(37)于保质期字孔(10)的位置以及后塑料薄膜(3)面上打印保质期(9)；
    生产日期(7)以及保质期(9)热合：保质期(9)印刷后，将防改日期包装袋(1)置于第二底模(21)内，并将防涂改封口膜(41)插入前塑料薄膜(2)与后塑料薄膜(3)之间，利用控制器(15)控制热合机(40)的第五液压缸(38)带动热熔元件(39)将前塑料薄膜(2)以及后塑料薄膜(3)与防涂改封口膜(41)热合连接，将生产日期(7)以及保质期(9)密封。
  4. 根据权利要求1所述的防改日期包装袋制造方法，其特征在于：所述的防改日期包装袋装好食物或者其他物品利用热合设备封装时，于包装口的前塑料薄膜(2)与后塑料薄膜(3)之间插入锐角为5°至15°角的锐角模板，然后再将锐角模板尖角旁边的前塑料薄膜(2)与后塑料薄膜(3)热合连接，使热合后的前塑料薄膜(2)与后塑料薄膜(3)之间留有5°至15°角，以方便冲压出生产日期字孔(8)前将插板(56)插入到前塑料薄膜(2)与后塑料薄膜(3)之间。
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