CN109049855B - Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet - Google Patents
Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet Download PDFInfo
- Publication number
- CN109049855B CN109049855B CN201811041900.5A CN201811041900A CN109049855B CN 109049855 B CN109049855 B CN 109049855B CN 201811041900 A CN201811041900 A CN 201811041900A CN 109049855 B CN109049855 B CN 109049855B
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- folding
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- bag
- power source
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- 230000007246 mechanism Effects 0.000 title claims abstract description 57
- 229920003023 plastic Polymers 0.000 title claims abstract description 57
- 239000004033 plastic Substances 0.000 title claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000010409 ironing Methods 0.000 description 14
- 230000007306 turnover Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/26—Folding sheets, blanks or webs
- B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
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- Making Paper Articles (AREA)
Abstract
The invention discloses a bottom long-side inward folding mechanism of a plastic three-dimensional bag sheet, which comprises a patch doubling frame (60) and a main frame (9), wherein the patch doubling frame is provided with a bottom upper long-side inward folding mechanism (63), and the front part of the patch doubling frame is provided with a bottom lower long-side inward folding mechanism (64). The side edge of the patch doubling frame (60) is provided with a bottom paper sheet feeding mechanism (61), and the two side edges of the front part of the patch doubling frame are provided with a bottom short edge doubling mechanism (62). The invention can sequentially complete the bottom paper sheet feeding, short side doubling, upper long side inner folding, lower long side inner folding and other bottom doubling full-automatic forming treatment work of the plastic three-dimensional bag sheet material. Therefore, the bonding firmness of the plastic three-dimensional bag is enhanced and the plastic three-dimensional bag is effectively and rapidly molded for the subsequent bag making, and the plastic three-dimensional bag with paper sheets clamped at the bottom of the square bag is manufactured, so that the speed, stability and yield of the three-dimensional bag are comprehensively improved.
Description
Technical Field
The invention relates to a packaging machine, in particular to a square bottom three-dimensional bag making system.
Background
Currently, nonwoven bags have developed various styles of bags: punching bags, hand bags, vest bags, zipper bags, three-dimensional bags and the like are mostly produced at high speed and automatically. The plastic bags also have the patterns of square bottom three-dimensional bags, square bottom clamping patch three-dimensional bags and the like, but except the handles and the bottoms of the plastic bags are half-automatic operation, all the other plastic bags are manufactured by folding and clamping patches (supplementing hard paper sheets) fully manually, the working efficiency is low, the labor cost is high, and the molding quality of the square bottom plastic three-dimensional bags cannot be guaranteed. The full-automatic treatment of single side positioning ironing, two side inward folding, square bottom opening, square bottom patch folding (including bottom paper sheet feeding, short side folding, upper long side inward folding, lower long side inward folding), square bottom ironing and the like of the plastic three-dimensional bag with the patch is not involved, and the forming firmness and the production efficiency of the three-dimensional bag, particularly the square bottom plastic three-dimensional bag are affected.
Disclosure of Invention
The invention aims to overcome the defects and provide a bottom long-side inward folding mechanism for completing automatic forming treatment of upper long-side inward folding and lower long-side inward folding of the bottom of a plastic three-dimensional bag sheet.
The aim of the invention is realized by the following technical scheme: the bottom long-side inward folding mechanism of the plastic three-dimensional bag sheet comprises a patch doubling frame and a main frame, wherein the patch doubling frame is provided with a bottom upper long-side inward folding mechanism, and the front part of the patch doubling frame is provided with a bottom lower long-side inward folding mechanism; the bottom upper long-side inward folding mechanism comprises an upper long-side inward folding downward pressing power source arranged on a patch doubling frame, the lower part of the upper long-side inward folding downward pressing power source is connected with an upper long-side inward folding mounting plate, two side edges of the upper long-side inward folding mounting plate are provided with a continuous inward folding forward pushing slide seat and an inward folding forward pushing force source, the inward folding forward pushing slide seat is provided with an upper long-side inward folding power source, and an upper long-side inward folding control plate is arranged between the upper long-side inward folding power sources through an inward folding rotary transmission assembly.
The bottom lower long-side inward folding mechanism comprises a lower long-side inward folding frame arranged at the front part of a patch doubling frame and on a main frame, a lower long-side inward folding power source is arranged on the lower long-side inward folding frame, the lower long-side inward folding power source is connected with a lower long-side inward folding plate, and a lower long-side blowing component is arranged on the lower long-side inward folding frame and at the side edge of the lower long-side inward folding power source. The folding machine comprises a patch folding machine frame, and is characterized in that a bottom short-side folding mechanism is arranged on two side edges of the front part of the patch folding machine frame, the bottom short-side folding mechanism comprises a short-side folding machine frame arranged on the front part of the patch folding machine frame and below a main machine frame, a short-side inner driving force source is arranged in the short-side folding machine frame, the short-side inner driving force source is connected with a short-side folding longitudinal plate, and a short-side folding transverse plate is arranged on the short-side folding longitudinal plate.
After the plastic three-dimensional bag sheet material is adopted, the bottom folding full-automatic forming treatment work such as folding the bottom short side of the plastic three-dimensional bag sheet material, folding the upper long side inwards, folding the lower long side inwards and the like is sequentially completed through the mechanisms. Therefore, the bonding firmness of the plastic three-dimensional bag is enhanced and the plastic three-dimensional bag is effectively and rapidly molded for the subsequent bag making, and the plastic three-dimensional bag with paper sheets clamped at the bottom of the square bag is manufactured, so that the speed, stability and yield of the three-dimensional bag are comprehensively improved.
Drawings
The present invention will be described in further detail with reference to the drawings and embodiments.
Fig. 1 is a schematic structural view of an automatic bag making system for plastic three-dimensional bags, which is applied to the invention.
Fig. 2 is a schematic view of the mounting structure of the present invention.
Fig. 3 is a schematic structural view of the bottom sheet feeding mechanism in fig. 2.
Fig. 4 is a schematic structural view of the bottom upper long-side inward folding mechanism in fig. 2.
FIG. 5 is a flow chart of the steps of the plastic three-dimensional bag with the square bottom entrapping patch made by the present invention.
Fig. 6 is a schematic view of the bottom opening device of fig. 1.
Detailed Description
Referring to fig. 1 and 2, the bottom long-side inward folding mechanism of the plastic three-dimensional bag sheet material of the present invention comprises a patch folding frame 60 and a main frame 9, wherein the patch folding frame 60 is provided with a bottom upper long-side inward folding mechanism 63, and the front part of the patch folding frame 60 is provided with a bottom lower long-side inward folding mechanism 64 (between the bottom short-side folding mechanisms 62). The side edge of the patch folding frame 60 is provided with a bottom paper sheet feeding mechanism 61, and the two side edges of the front part of the patch folding frame 60 are provided with a bottom short edge folding mechanism 62. Thereby forming the bottom patch doubling-up device 6 of the plastic three-dimensional bag sheet material.
As shown in fig. 2 and 3, the bottom paper sheet feeding mechanism 61 comprises a swing arm frame 70 mounted on the side edge of the patch doubling frame 60 and the main frame 9, a swing plate 71 is mounted on the swing arm frame 70, an upper horizontal synchronizing wheel 72 is mounted on the upper part of the swing plate 71, a lower horizontal synchronizing wheel 73 is mounted on the lower part of the swing plate 71, the swing plate 71 and the lower horizontal synchronizing wheel 73 are connected with a swing power source 74 (a swing motor with a speed reducing function), and the upper horizontal synchronizing wheel 72 and the lower horizontal synchronizing wheel 73 are connected through a horizontal synchronizing belt 75; a suction plate 78 is mounted on the upper horizontal synchronizing wheel 72 through a suction plate mounting shaft 76 (and a suction plate bearing housing 77), and a suction assembly 79 (including a suction nozzle) is mounted under the suction plate 78. The swing arm frame 70 and the swing plate 71 are provided with a paper sheet conveying mechanism 65 at the side edges thereof.
When the plastic three-dimensional bag sheet material at the bottom is opened, the plastic three-dimensional bag sheet material is clamped by the manipulator sheet material transmission device 8 and sent to the patch doubling frame 60, the bag opening positioning pressing plate cylinder drives the bag opening positioning pressing plate to press down so as to position the bag opening and part of the bag body of the plastic three-dimensional bag. The swing power source 74 works to drive the swing plate 71 to swing 180 degrees, and simultaneously drives the lower horizontal synchronizing wheel 73, the upper horizontal synchronizing wheel 72 and the horizontal synchronizing belt 75 to rotate, so that the suction plate is enabled to swing under the swing of the swing plate through the rotation of the suction plate mounting shaft, the suction plate and the suction assembly are ensured to be in a horizontal state, and the suction assembly sucks paper sheets on the paper sheet conveying mechanism horizontally to the bottom opening position of the three-dimensional bag sheet material.
As shown in fig. 2, the bottom short-side folding mechanism 62 includes a short-side folding frame 80 (one piece each on the left and right sides) mounted in front of the patch folding frame 60 and under the main frame 9, a short-side internal pushing force source 81 (which is a short-side internal pushing cylinder) is mounted in the short-side folding frame 80, the short-side internal pushing force source 81 is connected with a short-side folding vertical plate 83 (which can be lifted up and down), and a short-side folding transverse moving plate 82 is mounted on the short-side folding vertical plate 83. The short-side folding longitudinal plate 83 is firstly adjusted to be up and down in height, so that the height position of the short-side folding transverse plate is consistent with the two lateral short sides of the three-dimensional bag sheet material; then, the short-side inner pushing force source 81 works to drive the short-side folding longitudinal plate 83 to push inwards, and the short-side folding transverse plate pushes inwards, so that the two short sides of the bottom of the three-dimensional bag sheet stock are folded towards the bottom paper sheet, and the two short sides are covered on the bottom paper sheet. At this point the suction plate and suction assembly of the bottom sheet feeding mechanism 61 have been retracted.
As shown in fig. 2 and 4, the bottom upper long side inward folding mechanism 63 includes an upper long side inward folding power source 90 (an upper long side inward folding cylinder) mounted on a patch folding frame, the lower part of the upper long side inward folding power source 90 is connected with an upper long side inward folding mounting plate 91, two side edges of the upper long side inward folding mounting plate 91 are provided with an inward folding front pushing slide seat 92 and an inward folding front pushing force source 93 (an inward folding front pushing cylinder), the inward folding front pushing slide seat 92 is provided with an upper long side inward folding power source 94 (an upper long side inward folding cylinder), and an upper long side inward folding control plate 95 is mounted between the upper long side inward folding power sources 94 through an inward folding rotation transmission assembly. The bottom lower long side inward folding mechanism 64 comprises a lower long side inward folding frame 85 arranged on the front part of the patch doubling frame 60 and the main frame 9, a lower long side inward folding power source 86 (which is a lower long side inward folding cylinder) is arranged on the lower long side inward folding frame 85, the lower long side inward folding power source 86 is connected with a lower long side inward folding plate 87, and a lower long side blowing component 88 (comprising a blowing pipe and the like) is arranged on the lower long side inward folding frame 85 and at the side edge of the lower long side inward folding power source 86.
The lower part of the upper long-side inward-folding power source 94 is connected with an inward-folding rotary gear 97 through an inward-folding rack 96, the upper long-side inward-folding control plate 95 is arranged between inward-folding rotary gear shafts 98 in the inward-folding rotary gear 97, and the inward-folding rack 96, the inward-folding rotary gear 97 and the inward-folding rotary gear shafts 98 form an inward-folding rotary transmission assembly. A pocket positioning pressure plate air cylinder 66 is arranged on one side of the patch doubling frame 60 and above the upper long-side inward-folding control plate 95, and the lower part of the pocket positioning pressure plate air cylinder 66 is connected with a pocket positioning pressure plate 67; a bag bottom pressing plate cylinder 68 is arranged on the other side of the patch doubling frame 60, a bag bottom positioning pressing plate 69 is connected below the bag bottom pressing plate cylinder 68, and a feeding baffle 99 is arranged below the patch doubling frame 60 and at a feeding hole of the plastic three-dimensional bag sheet.
After the plastic three-dimensional bag sheet material at the bottom is sent to the patch doubling frame 60 and the lower part of the feeding baffle 99, the bag opening positioning pressing plate cylinder drives the bag opening positioning pressing plate to press downwards, and the bag bottom pressing plate cylinder 68 drives the bag bottom positioning pressing plate 69 to press downwards so as to position the bag opening, the bag body and the bag bottom of the plastic three-dimensional bag; the upper long side inward folding and downward pressing power source 90 works to drive the upper long side inward folding mounting plate 91 to enable the inward folding front pushing slide seat 92 and the inward folding front pushing force source 93 to move downwards to be in place, and meanwhile, the inward folding front pushing force source 93 works to drive the inward folding front pushing slide seat 92 (sliding on a front pushing sliding rail), the upper long side inward folding power source 94 and the upper long side inward folding control plate 95 to push forwards to be in place; then, the upper long side inward folding power source 94 works to pull up the inward folding rack 96, and drives the rotary inward folding rotary gear 97 and the inward folding rotary gear shaft 98 to rotate, so as to drive the upper long side inward folding control plate 95 to rotate, the bottom upper long side of the plastic three-dimensional bag sheet material is folded inward and pressed on the lateral short side thereof, the bottom paper sheet is covered from the upper side, and then the bag bottom positioning press plate 69 is driven by the bag bottom press plate cylinder 68 to press down and fix. Then, the manipulator sheet material transmission device 8 releases the lower long edge of the bottom of the plastic three-dimensional bag, the lower long edge blowing assembly 88 blows air against the lower long edge to enable the lower long edge to lean against the upper long edge of the bottom of the plastic three-dimensional bag, and the lower long edge inward folding power source 86 works to drive the lower long edge inward folding plate 87 to enable the lower long edge to cover the upper long edge of the bottom of the plastic three-dimensional bag, as shown in a sheet material state f in fig. 5. Thereby fully preparing the bottom of the subsequent plastic three-dimensional bag sheet material for ironing. Finally, the plastic three-dimensional bag with paper sheets at the square bottom is manufactured by conveying the plastic three-dimensional bag sheets to a bottom ironing device 7 by a manipulator at the side of a main frame for bottom ironing treatment, and the plastic three-dimensional bag with paper sheets at the square bottom is manufactured, as shown in a sheet state g in fig. 5.
As shown in fig. 1, in the automatic plastic three-dimensional bag making system (with patches entrained at the square bottom) applied by the invention, a patch doubling frame 60 is arranged on a main frame 9, a sheet positioning feeding device 1 and a plate doubling device 2 are sequentially arranged at the front part of the main frame 9, a single-side ironing device 3, two side inward folding devices 4 and a bottom opening device 5 are sequentially arranged on the main frame 9 and a manipulator sheet transmission device 8 (circular rotation) is arranged at the middle part of the sheet positioning feeding device, the plate doubling device, the single-side ironing device, the two side inward folding devices and the bottom opening device; the bottom patch doubling device 6 and the bottom ironing device 7 of the plastic three-dimensional bag sheet are sequentially arranged on the main frame 9 and at the side edge of the bottom opening device 5. The sheet positioning feeding device 1, the plate folding device 2, the single-side edge ironing device 3, the two-side edge inward folding device 4, the bottom opening device 5, the bottom patch folding device 6 and the bottom ironing device 7 of the plastic three-dimensional bag sheet are arranged on the main frame 9 in a horizontal mode in a straight line in sequence, and the sheet positioning feeding device 1 is at the forefront part and the bottom ironing device 7 is at the rearmost part.
The manipulator sheet transmission device 8 clamps the middle position of the bottom of the lower layer of the plastic three-dimensional bag sheet, and gradually conveys the sheet from the sheet positioning and feeding device 1 to the station of the bottom patch doubling device 6 for loosening. The sheet positioning and feeding device 1 performs positioning and feeding on plastic three-dimensional bag sheets, as shown in a sheet state a in fig. 5; the plate turnover and folding device 2 performs turnover and folding on the plastic three-dimensional bag sheet material by taking the central line indentation as a reference shaft, so that the sheet material is in a state of single-side sealing, upper and lower layers and opening on the other side (namely three sides), as shown in a sheet material state b in fig. 5; the single-side ironing device 3 completes the single-side ironing of the folded sheet material after plate turnover, as shown in a sheet material state c in fig. 5; the two side inward folding devices 4 complete the two side inward folding forming of the sheet material after the single side ironing and are in a two-side organ bag state (namely, the two inward folding sides of the flat pocket are just like the closed air port leaves, also called organ rubber bags), as shown in the sheet material state d in fig. 5.
As shown in fig. 6, the bottom opening device 5 is characterized in that the bottom opening frame 50 is mounted on the (right) side of the patch folding frame 60 through the main frame 9, the feeding auxiliary shaping plate 51 (with a front feeding side higher and a rear discharging side lower in a front-rear downhill shape) is mounted on the front portion of the bottom opening frame 50, hinge sliding blocks 52 (two left and right) are mounted on two sides of the bottom opening frame 50, one end (through a sliding block seat 53) of each hinge sliding block 52 is connected with a sliding block transverse moving mechanism (sharing one set), the other end of each hinge sliding block 52 is connected with a hinge lifting power source 56 (being a hinge lifting cylinder and two sets), the hinge lifting power source 56 is connected with a hinge bottom opening control mechanism, and a bottom opening hinge 57 is mounted on the hinge bottom opening control mechanism (two sets).
The slide block transverse moving mechanism comprises a transverse moving internal pushing synchronous transmission assembly 54 connected with the transverse moving internal pushing power source 55 (which is a transverse moving internal pushing cylinder). The sliding block seat 53 is arranged on the transverse moving and inward pushing synchronous transmission assembly 54. The hinge bottom opening control mechanism comprises a hinge seat 58 arranged below a hinge lifting power source 56, a bottom opening hinge power source 59 (which is a bottom opening hinge cylinder) is arranged on the hinge seat 58, a hinge rotating rack 17 is arranged below the bottom opening hinge power source 59, the hinge rotating rack 17 is connected with the hinge rotating gear 16, and the bottom opening hinge 57 is arranged (inserted) on a hinge rotating shaft 15 in the hinge rotating gear 16.
The front part of the bottom opening frame 50 is provided with a bag opening pressing plate lifting power source 14 (which is a bag opening pressing plate lifting cylinder), the rear part of the bottom opening frame is provided with a bag bottom pressing plate lifting power source 12 (which is a bag bottom pressing plate lifting cylinder), the bag opening pressing plate 13 is arranged below the bag opening pressing plate lifting power source 14, and the bag bottom pressing plate 11 is arranged below the bag bottom pressing plate lifting power source 12.
After plastic three-dimensional bag sheet materials are folded inwards and formed on two sides, the plastic three-dimensional bag sheet materials are clamped to the front part of a bottom opening device 5 by a mechanical arm sheet material transmission device 8 and pass through the inside of a feeding auxiliary shaping plate 51, the bottom of the plastic three-dimensional bag sheet materials is positioned at the lower part of the rear side of the feeding auxiliary shaping plate 51, the mouth part of the plastic three-dimensional bag sheet materials is positioned at the upper part of the front side of the feeding auxiliary shaping plate 51, the plastic three-dimensional bag sheet materials are integrally shaped and clamped to the side edge of a bottom opening hinge at the bottom of the plastic three-dimensional bag sheet materials, and then a bag mouth pressing plate lifting power source 14 drives a bag mouth pressing plate 13 to be pressed down to position the middle part of the plastic three-dimensional bag sheet materials; then, the transverse moving internal driving force source 55 of the sliding block transverse moving mechanism drives the transverse moving internal pushing synchronous transmission assembly 54 to enable the hinge sliding block 52 and the sliding block seat 53 to be close from two sides to the middle, the bottom opening hinge 57 is opened by internal pushing the sides of the sheet material to be inserted into the sheet material in a combined state, the whole of the hinge bottom opening control mechanism and the bottom opening hinge is pressed down by the hinge lifting power source 56, the bottom opening hinge power source 59 of the hinge bottom opening control mechanism drives the hinge rotating rack 17 to pull up to enable the hinge rotating gear 16 to rotate, the bottom opening hinge 57 is opened by rotation of the hinge rotating shaft 15, and finally the bottom (comprising two sides) of the sheet material is opened to be in an open state. As shown by the sheet state e in fig. 5. And then the bag bottom pressing plate 11 is driven by the bag bottom pressing plate lifting power source 12 to press downwards to shape the opened bottom of the sheet material.
Claims (4)
1. The utility model provides a long limit infolding mechanism in bottom of three-dimensional bag piece material of plastics, includes patch fifty percent discount frame (60), total frame (9), its characterized in that: the patch doubling frame (60) is provided with a bottom upper long-side inward folding mechanism (63), and the front part of the patch doubling frame (60) is provided with a bottom lower long-side inward folding mechanism (64); the bottom upper long-side inward folding mechanism (63) comprises an upper long-side inward folding downward pressing power source (90) arranged on a patch doubling frame, the upper long-side inward folding downward pressing power source (90) is connected with an upper long-side inward folding mounting plate (91), two side edges of the upper long-side inward folding mounting plate (91) are provided with an inward folding front pushing slide seat (92) and an inward folding front pushing force source (93) which are connected, the inward folding front pushing slide seat (92) is provided with an upper long-side inward folding power source (94), and an upper long-side inward folding control plate (95) is arranged between the upper long-side inward folding power sources (94) through an inward folding rotary transmission assembly; the bottom lower long-side inward folding mechanism (64) comprises a lower long-side inward folding rack (85) arranged on the front part of the patch doubling rack (60) and the main frame (9), a lower long-side inward folding power source (86) is arranged on the lower long-side inward folding rack (85), the lower long-side inward folding power source (86) is connected with a lower long-side inward folding plate (87), and a lower long-side blowing component (88) is arranged on the lower long-side inward folding rack (85) and at the side edge of the lower long-side inward folding power source (86); the side edge of the patch doubling frame (60) is provided with a bottom opening frame (50) through a main frame (9), the front part of the bottom opening frame (50) is provided with a feeding auxiliary shaping plate (51), two sides of the bottom opening frame (50) are provided with hinge sliding blocks (52), one end of each hinge sliding block (52) is connected with a sliding block transverse moving mechanism, the other end of each hinge sliding block is connected with a hinge lifting power source (56), the hinge lifting power source (56) is connected with a hinge bottom opening control mechanism, and a bottom opening hinge (57) is arranged on the hinge bottom opening control mechanism; the sliding block transverse moving mechanism comprises a transverse moving internal pushing synchronous transmission assembly (54) and a transverse moving internal pushing force source (55) which are connected, the hinge bottom opening control mechanism comprises a hinge seat (58) arranged under a hinge lifting power source (56), a bottom opening hinge power source (59) is arranged on the hinge seat (58), a hinge rotating rack (17) is arranged under the bottom opening hinge power source, the hinge rotating rack (17) is connected with a hinge rotating gear (16), and a bottom opening hinge (57) is arranged on a hinge rotating shaft (15) in the hinge rotating gear; a bag opening pressing plate lifting power source (14) is arranged at the front part of the bottom opening rack (50), a bag bottom pressing plate lifting power source (12) is arranged at the rear part of the bottom opening rack, a bag opening pressing plate (13) is arranged under the bag opening pressing plate lifting power source (14), and a bag bottom pressing plate (11) is arranged under the bag bottom pressing plate lifting power source (12); the plastic three-dimensional bag sheet material passes through the inside of the feeding auxiliary shaping plate, the bottom of the sheet material is positioned at the lower part of the rear edge of the feeding auxiliary shaping plate, the mouth part of the sheet material is positioned at the higher part of the front edge of the feeding auxiliary shaping plate, the sheet material is integrally shaped and positioned at the side edge of the bottom-opening hinge, and then the bag mouth pressing plate lifting power source drives the bag mouth pressing plate to press downwards so as to position the middle part of the sheet material; then, the transverse moving internal driving force source of the transverse moving mechanism of the sliding block drives the transverse moving internal driving synchronous transmission assembly to enable the sliding block and the sliding block seat to be close from two sides to the middle, the bottom-opening hinge is inserted into the side edge of the sheet material through internal pushing to open the side edge, the hinge bottom-opening control mechanism and the whole of the bottom-opening hinge are pressed down through the hinge lifting power source, the bottom-opening hinge power source of the hinge bottom-opening control mechanism drives the hinge rotary rack to pull up so as to enable the hinge rotary gear to rotate, the bottom-opening hinge is opened through rotation of the hinge rotary shaft, and finally the bottom of the sheet material is opened to be in an open state.
2. The bottom long edge tuck-in mechanism of plastic three-dimensional bag sheet material according to claim 1, wherein: the patch folding machine is characterized in that a bottom short-side folding mechanism (62) is arranged on two side edges of the front part of the patch folding machine frame (60), the bottom short-side folding mechanism (62) comprises a short-side folding machine frame (80) arranged in the front part of the patch folding machine frame (60) and below the main machine frame (9), a short-side inner driving force source (81) is arranged in the short-side folding machine frame (80), the short-side inner driving force source (81) is connected with a short-side folding longitudinal plate (83), and a short-side folding transverse plate (82) is arranged on the short-side folding longitudinal plate (83).
3. The bottom long edge tuck-in mechanism of plastic three-dimensional bag sheet material according to claim 1, wherein: the upper long-side inward-folding power source (94) is connected with the inward-folding rotary gear (97) through an inward-folding rack (96), the upper long-side inward-folding control board (95) is arranged between inward-folding rotary gear shafts (98) in the inward-folding rotary gear (97), and the inward-folding rack (96), the inward-folding rotary gear (97) and the inward-folding rotary gear shafts (98) form an inward-folding rotary transmission assembly.
4. The bottom long edge tuck-in mechanism of plastic three-dimensional bag sheet material according to claim 2, wherein: a pocket positioning pressure plate cylinder (66) is arranged on one side of the patch doubling frame (60) and above the upper long-side inward-folding control plate (95), and the pocket positioning pressure plate cylinder (66) is connected with a pocket positioning pressure plate (67) below; a bag bottom pressing plate cylinder (68) is arranged on the other side of the patch doubling frame (60), a bag bottom positioning pressing plate (69) is connected below the bag bottom pressing plate cylinder (68), and a feeding baffle (99) is arranged below the patch doubling frame (60) and at a feeding hole of the plastic three-dimensional bag sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041900.5A CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041900.5A CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
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| Publication Number | Publication Date |
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| CN109049855A CN109049855A (en) | 2018-12-21 |
| CN109049855B true CN109049855B (en) | 2024-04-12 |
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| CN201811041900.5A Active CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
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