CN106863911B - Packaging bag folding equipment and method - Google Patents
Packaging bag folding equipment and method Download PDFInfo
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- CN106863911B CN106863911B CN201710117996.8A CN201710117996A CN106863911B CN 106863911 B CN106863911 B CN 106863911B CN 201710117996 A CN201710117996 A CN 201710117996A CN 106863911 B CN106863911 B CN 106863911B
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Abstract
The invention provides packaging bag folding equipment, which comprises a conveying roller device and a folding roller device; the conveying roller device comprises at least one conveying roller; the folding roller device comprises a first folding roller and a second folding roller which are symmetrically arranged, and the first folding roller and the second folding roller are perpendicular to the conveying roller. The folding device has the advantages that the folding device can be folded at a plurality of positions in one step, the folding position is accurate, the working procedure is simple, and the production efficiency is high; and has multiple functions.
Description
Technical Field
The invention relates to packaging equipment and a packaging method, in particular to packaging bag folding equipment and a packaging bag folding method.
Background
In order to increase the thickness of the existing packaging bag, the existing packaging bag can be folded at different positions, and can be unfolded when being used.
Fig. 9 is a structural view of the package after the package is completely folded.
As shown in fig. 9, the manner of folding the package into a "W" shape is mainly composed of two types: 1. the middle folding line is folded in half, and then the two side folding lines R are folded in half step by step; 2. one side folding line R is folded, the middle folding line R is folded in opposite direction, and finally the other side folding line R is folded. The two modes all need to be folded three times, the working procedures are more, and the time consumption is long. And each folding needs to be aligned and adjusted, and any folding deflection can generate folds, so that defective products and even bad products of the packaging bag are caused.
Disclosure of Invention
The invention aims to provide packaging bag folding equipment and a packaging bag folding method, which can complete folding at a plurality of positions in one step, are accurate in folding position, simple in working procedure and high in production efficiency, overcome the technical defects and solve the technical problems in the prior art.
The present invention provides a package bag folding apparatus comprising, a conveying roller device 120 and a folding roller device 170; the conveying roller device 120 includes at least one conveying roller 121; the folding roller device 170 includes a first folding roller 171 and a second folding roller 172 which are symmetrically arranged, and the first folding roller 171 and the second folding roller 172 are arranged perpendicular to the conveying roller.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: the package is laid flat on the conveyor roller, folded in a "W" shape between the conveyor roller and the folding device, and pressed between the first folding roller 171 and the second folding roller 172.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: the last conveyor roller 121 adjacent to the folding roller arrangement 170 can be moved closer to or further from the folding roller arrangement 170.
The folding roller assembly 170 also includes side restraints 123 to limit the position of one side of the bag material as a pre-selection.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: and also includes a middle fold line embossing apparatus 130 which embosses the middle fold line C impression on the package.
Preferably, the middle folding line pressing apparatus 130 is disposed above any one of the conveying rollers.
Preferably, the middle folding line pressing apparatus 130 includes a middle folding line pressing roller 135; the position of the middle folding line pinch roller 135 is adjustable.
Preferably, the middle folding line pressing apparatus 130 further includes a middle folding line fixing frame 131, a middle folding line moving frame 132, a pinch roller adjusting member 133, and a rotating connection plate 134; the middle folding line moving frame 132 is clamped on the middle folding line fixing frame 131, one end of the rotary connecting plate 134 is rotatably connected with the middle folding line moving frame 132, the other end of the rotary connecting plate is rotatably connected with the middle folding line pressing wheel 135, and one end of the pressing wheel adjusting piece 133 is fixed on the middle folding line moving frame 132; the other end is rotatably connected to the middle of the rotating connection plate 134.
Preferably, rotating puck adjuster 133 adjusts its length.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: the two-side folding line limiting device 140 is further included, and the two-side folding line limiting device 140 is provided with two protruding parts, corresponds to the positions of the two-side folding lines R and applies force to the two-side folding lines R.
Preferably, the two-sided folding line limiting device 140 includes: two symmetrical fold line limit rods 141, and an acute angle at one end of the fold line limit rod 141 at the protruding part.
Preferably, the position of the fold line limit lever 141 is adjustable.
Preferably, the two-sided fold line limiting device 140 is a fold line limiting plate.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: also included is a folding and combining device 150, the folding and combining device 150 including a folding ram 153; the folding pressure head 153 has a folding groove 153-1 at an end thereof, and a bag material folding portion is inserted into the folding groove 153-1.
Preferably, the folding combining device 150 further includes a folding combining bracket 151 and a folding connection member 152, one end of which is fixed to the folding combining bracket, and a folding press head is provided at the other end of the folding connection member.
Further, the present invention provides a packaging bag folding apparatus, further having the following features: and a folding-stiffening means 160, the folding-stiffening means 160 being inserted into the folded portion of the package, to limit the position of the fold line C in the package to remain unchanged.
Preferably, the folding-enhancement device 160 is a roller.
In addition, the invention also provides a folding method of the packaging bag, wherein the packaging bag is flatly laid on a conveying roller, and is folded and molded before entering a folding device, and is pressed between a first folding roller and a second folding roller of the folding device for extrusion molding.
Further, the invention provides a folding method of the packaging bag, which is characterized by comprising the following steps: bag(s)
The method comprises the following steps of,
step B, extracting one end of the packaging bag raw material placed on the discharging device, and sequentially passing through all conveying rollers in the conveying roller device;
step C, after the packaging bag raw material passes through the last movable conveying roller, pressing a middle folding line indentation on the packaging bag raw material by a middle folding line pressing wheel;
step D, the packaging bag receives the outward force of the end part of the broken line limiting rod, and the packaging bag side broken line R is folded;
e, folding the end part of the packaging bag into a W shape, wherein the folding overlapping part is limited in the embedded folding groove;
f, respectively passing the folding parts of the W-shaped bottom of the packaging bag from two sides of the roller of the folding strengthening device;
step G, pressing the folded packaging bag between a first folding roller and a second folding roller;
and step H, starting the power of the folding roller device, driving the first folding roller and the second folding roller to rotate in opposite directions, and starting discharging by the discharging device.
Further, the invention provides a folding method of the packaging bag, which is characterized by comprising the following steps: and also (3) the method
Including a position adjustment step.
Preferably, the middle folding line pressing wheel of the middle folding line pressing device, the folding pressing head of the folding merging device, the roller of the folding strengthening device and the central line position of the auxiliary limiting column are arranged on a straight line.
Preferably, the height of the middle folding line pressing wheel of the middle folding line pressing device is adjusted.
Preferably, the distance between the moving conveyor roller frame and the folding merge frame is adjusted.
Preferably, the end positions of the folding line limiting rods of the folding line limiting devices on the two sides are adjusted to be aligned with the positions of the folding lines on the sides of the packaging bag.
Drawings
Fig. 1 is a front view of a package folding apparatus.
Fig. 2 is a left side view of the package folding apparatus.
Fig. 3 is a right side view of the package folding apparatus.
Fig. 4 is a front left side perspective view of the package folding apparatus.
Fig. 5 is a front right side perspective view of the package folding apparatus.
Fig. 6 is an enlarged view of the section I of fig. 5.
Fig. 7 is a rear left side perspective view of the bag folding apparatus.
Fig. 8 is an enlarged view of section II of fig. 3.
Fig. 9 is a structural view of the package after the package is completely folded.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Fig. 1 is a front view of a package folding apparatus.
Fig. 2 is a left side view of the package folding apparatus.
Fig. 3 is a right side view of the package folding apparatus.
As shown in fig. 1, 2 and 3, the package folding apparatus 100 includes: a discharging device 110, a conveying roller device 120, a middle fold line pressing device 130, two side fold line limiting devices 140, a folding merging device 150, a folding strengthening device 160, a folding roller device 170 and a bracket 180.
The package folding apparatus 100 is for folding flat package raw materials into a "W" shape.
In this embodiment, the plastic film material of the package bag is a roll material. The discharging device 110 is disposed at the bottom of the bracket 180. The center hole of the raw material reel P of the package is provided on the package discharging device 110, and the reel releases the raw material of the package.
Fig. 4 is a left front perspective view of the package folding apparatus.
As shown in fig. 4, the conveying roller device 120 includes: 5 fixed conveying rollers 121, 1 moving conveying roller assembly 122 and side stoppers 123. The 5 fixed conveying rollers 121 are a first fixed conveying roller 121-1, a second fixed conveying roller 121-2, a third fixed conveying roller 121-3, a fourth fixed conveying roller 121-4, and a fifth fixed conveying roller 121-5, respectively.
The first fixed conveying roller 121-1, the second fixed conveying roller 121-2, and the third fixed conveying roller 121-3 are a group. The raw material for packaging bags passes through the lower part of the first fixed conveying roller 121-1, passes around the upper part of the second fixed conveying roller 121-2, and passes through the lower part of the third fixed conveying roller 121-1. Wherein bearings are provided at both ends of the rotation shaft of the second fixed conveying roller 121-2. The rotation shafts of the first fixed conveying roller 121-1 and the third fixed conveying roller 121-3 are fixed to the bracket 180. That is, the packing material is in sliding friction with the first and third fixed conveying rollers 121-1 and 121-3, and the rolling friction is between the packing material and the second fixed conveying roller 121-2.
The fourth and fifth fixed conveying rollers 121-4 and 121-5 are disposed on the top surface of the bracket 180. The raw material for the package is wound around the upper side of the fourth fixed conveying roller 121-4 and then wound around the lower side of the fifth fixed conveying roller 121-5. The fixed conveying rollers 121 may be provided in a greater or lesser number depending on the height and distance that the actual product needs to be conveyed.
The moving conveying roller assembly 122 includes: a moving conveying roller holder 122-1 and a moving conveying roller 122-2. Two parallel guide rails 181 are symmetrically provided on both sides of the top surface of the bracket 180. The bottoms of both sides of the moving conveying roller support 122-1 are provided with moving conveying roller sliding grooves. The moving conveying roller chute is sleeved on the guide rail 181 and moves back and forth on the guide rail 181. The moving conveying roller 122-2 is provided on the moving conveying roller holder 122-1, and the moving conveying roller holder 122-1 moves. The movable conveying roller 122-2 has the same function as the fixed conveying roller, but adds a moving function, and adjusts the distance between the last conveying pipe and the two side folding line limiting devices 140, the middle folding line limiting device 150 and the folding roller device 150 so that the device can be suitable for packaging bags with different size signals.
The side stopper 123 is provided on the support 180 at one side of the raw material conveying direction of the packing bag. In the present embodiment, the side stopper 123 is provided at a position between the third fixed conveying roller 121-3 and the fourth fixed conveying roller 121-4.
The side limit member 123 includes: a side fixing plate 123-1, three stopper posts 123-2, and a side moving plate 123-3. The side fixing plate 123-1 has an oblong hole. The side fixing plate 123-1 is adjustably fixed to the bracket 180 through an oblong hole. The three stops 123-2 are arranged parallel to each other. One end of each of the three stoppers 123-2 is vertically fixed to the side fixing plate 123-1, and the other end passes through the side moving plate 123-3. The side moving plate 123-3 slides on the three stoppers 123-2. Any one of the three baffles 123-2 is selected to press against the package material according to the size of the package material. The side moving plate 123-3 can move back and forth to limit the position of one side of the raw material of the packing bag.
Fig. 5 is a front right side perspective view of the package folding apparatus.
Fig. 6 is an enlarged view of the section I of fig. 5.
As shown in fig. 5 and 6, the medium folding line pressing apparatus 130 includes: middle folding line fixing frame 131, middle folding line moving frame 132, pinch roller adjusting member 133, rotary connecting plate 134 and middle folding line pinch roller 135.
The middle folding line fixing frame 131 is fixed on the moving conveying roller bracket 122-1, and the middle folding line fixing frame 131 is arranged above the moving conveying roller 122-2 in parallel. The middle folding line moving frame 132 is clamped on the middle folding line fixing frame 131 and can move left and right. One end of the rotary connecting plate 134 is rotatably connected with the middle folding line moving frame 132, and the other end is rotatably connected with the middle folding line pressing wheel 135. One end of the pinch roller adjusting member 133 is fixed to the middle folding line moving frame 132; the other end is rotatably connected to the middle of the rotating connection plate 134. Rotating puck adjuster 133 adjusts its own length to adjust the height of middle polyline puck 135.
The bag material B passes through the moving conveyor roller 122-2 and the middle folding line pinch roller 135 of the middle folding line pressing means 130 presses the middle folding line C into the bag material B. The middle folding line pressing apparatus 130 may be disposed above any one of the fixed conveying rollers 121 as long as the middle folding line C is pressed during the conveying of the raw material B for the packing bag.
As shown in fig. 2, 3 and 6, the two-sided fold line limiting device 140 includes: two symmetrically arranged broken line limit rods 141. One end of the fold line limiting rod 141 is an acute angle and is opposite to the positions of the fold lines on two sides of the packaging bag, and force is applied to the fold lines on the two sides. The other end of the fold line stopper 141 is fixed to the movable roller support 122-1, and may be directly fixed to the support 180. In this embodiment, the moving conveying roller support 122-1 has a slotted hole, and the position of the fold line limiting rod 141 fixed on the moving conveying roller support 122-1 can be adjusted, so that the position of the acute angle at the end of the fold line limiting rod 141 is changed, and the size of the packaging bag with different sizes is suitable.
Of course, the two-sided fold line limiting device 140 may be implemented by a fold line limiting plate. The front end of the broken line limiting plate is provided with two protruding parts corresponding to the positions of broken lines on two sides. Only adopt a broken line limiting plate, the inconvenient regulation of position of two bellying can set up the broken line limiting plate of a plurality of equidimension and change practicality to the needs of practical different wrapping bag sizes.
Fig. 7 is a rear left side perspective view of the bag folding apparatus.
Fig. 8 is an enlarged view of section II of fig. 3.
As shown in fig. 2, 7 and 8, the fold merging device 150 includes: folding merge bracket 151, folding connector 152, and folding ram 153.
The bottoms of both sides of the folding combining bracket 151 are provided with folding combining bracket sliding grooves. The folding combined support runner is arranged on the guide rail 181 and moves back and forth on the guide rail 181, and the distance between the folding combined support runner and the movable conveying roller 122-2 is adjusted, so that the folding combined support runner is suitable for different folding sizes of packaging bags. The folding connector 152 is L-shaped and has one end fixed to the folding combining bracket 151. The folding ram 153 is detachably fixed to the other end of the folding link 152 using a screw. The end of the folding ram 153 has a folding slot 153-1. The raw material of the packaging bag is folded into a W shape, and the three-layer folded part of the W shape is embedded into the folding groove 153-1.
As shown in fig. 7, the fold reinforcing device 160 is a roller inserted into the folded portion of the package to restrict the position of the fold line C in the package from being changed. The front and back positions of the roller wheels can be moved to adjust the depth of the folding position.
As shown in fig. 5 and 7, the folding roller device 170 includes: a first folding roller 171, a second folding roller 172, a folding roller bracket 173, and 2 auxiliary limit posts 174. The folding roller bracket 173 is provided on the bracket 180, and the folding roller bracket 173 adjusts the front and rear positions by being connected to the oblong holes of the bracket. The first folding roller 171 and the second folding roller 172 are symmetrically disposed on the folding roller bracket 173 and are disposed perpendicular to the moving conveying roller.
Either one or both of the first folding roller 171 and the second folding roller 172 are synchronously driven to rotate by a motor. In this embodiment, the first folding roller 171 rotates counterclockwise, the second folding roller 172 rotates clockwise, and the two folding rollers rotate in opposition. The W-folded package passes between the first folding roller 171 and the second folding roller 172, and is extruded by both rollers, thereby completing the final forming process.
The 2 auxiliary limit posts 174 are symmetrically arranged between the folding and merging device 150 and the first folding roller 171 and the second folding roller 172. And the center positions of the 2 auxiliary limit posts 174 are aligned with the center line positions of the first folding roller 171 and the second folding roller 172. The 2 auxiliary stopper posts 174 are also parallel to the first folding roller 171 and the second folding roller 172. The 2 auxiliary stopper posts 174 are mainly used for limiting the travelling position of the package on two sides during the folding process of the package so as to ensure that the package is folded according to the required size. 2 auxiliary stopper posts 174 are adjustably provided on the bracket 180.
The folding method of the packaging bag comprises the following steps:
and step A, position adjustment.
In step a-1, the middle folding pinch roller 135 of the middle folding line pressing apparatus 130, the folding press 153 of the folding and merging apparatus 150, the rollers of the folding and strengthening apparatus 160, the center line positions of the 2 auxiliary limit posts 174, and the center line positions of the first folding roller 171 and the second folding roller 172 are required to be arranged on a straight line, that is, the position of the folding line C in the package.
Step A-2, the height position of the middle folding line pinch roller 135 of the middle folding line pressing device 130 is also required to be adjusted, so as to adapt to the requirements of the central line C indentation of the packaging bags with different materials and different thicknesses.
Step a-3, adjusting the distance between the moving conveying roller holder 122-1 and the folding merge holder 151.
And step A-4, adjusting the end positions of the folding line limiting rods 141 of the folding line limiting devices 140 on the two sides to align with the positions of the folding lines R on the side of the packaging bag.
And step A-5, adjusting the positions of rollers of the folding strengthening device 160, and adjusting the front and rear positions of a folding roller bracket 173 of the folding roller device 170 to adapt to packaging bags with different widths.
And B, drawing one end of the packaging bag raw material placed on the discharging device 110, and sequentially passing through each conveying roller in the conveying roller device. In this process, the left and right positions of the side stoppers 123 are adjusted to define the position of the raw material side of the package.
After the packaging bag raw material passes through the last moving conveying roller 122-2 of the conveying roller device 120, the middle folding line pressing wheel 135 of the middle folding line pressing device 130 arranged on the moving conveying roller 122-2 presses the middle folding line C indentation on the packaging bag raw material B.
And D, the packaging bag receives the outward force of the end part of the folding line limiting rod 141, and the packaging bag side folding line R is folded.
And E, the end part of the packaging bag is folded into a W shape, and the folding overlapping part is limited in the embedded folding groove 153-1.
And F, respectively passing the folding positions of the W-shaped bottom of the packaging bag from two sides of the roller of the folding strengthening device 160.
Step G, the folded package is pressed between the first folding roller 171 and the second folding roller 172 of the folding roller device 170.
In step H, the motor of the folding roller device 170 is turned on, so as to drive the first folding roller 171 and the second folding roller 172 to rotate in opposite directions, and the discharging device 110 starts discharging. The packaging bag is folded into a W shape in one step fully automatically.
The adjustment step a may be adjusted separately at the time of first passing the raw material of the package through each device, that is, in synchronization with the steps B to G.
In addition, the packaging bag folding device 100 of the present invention removes the two-sided folding line limiting device 140 and the folding strengthening device 160, and can fold the V-shaped packaging bag, thereby achieving multiple purposes.
Claims (8)
1. A packaging bag folding apparatus, characterized in that: comprises a conveying roller device (120) and a folding roller device (170);
wherein the conveyor roller arrangement (120) comprises at least one conveyor roller (121);
the folding roller device (170) comprises a first folding roller (171) and a second folding roller (172) which are symmetrically arranged, and the first folding roller (171) and the second folding roller (172) are arranged perpendicular to the conveying roller;
further comprising a middle fold line pressing device (130) which presses out a middle fold line (C) indentation on the package bag; the medium folding line pressing device (130) is arranged above any one of the conveying rollers; the middle broken line pressing device (130) comprises a middle broken line pressing wheel (135);
the device also comprises two side folding line limiting devices (140), wherein the two side folding line limiting devices (140) are provided with two protruding parts, correspond to the positions of the two side folding lines (R), and apply force to the side folding lines (R);
the packaging bag is flatly paved on the conveying roller, is folded between the conveying roller and the folding roller device to be W-shaped, and is pressed between the first folding roller (171) and the second folding roller (172).
2. The package folding apparatus of claim 1, wherein:
wherein the last of said conveyor rollers (121) adjacent to said folding roller means (170) is movable towards or away from said folding roller means (170);
the folding roller device (170) further comprises a side limit member (123) for limiting the position of one side of the packaging bag.
3. The package folding apparatus of claim 1, wherein:
the position of the middle folding line pinch roller (135) is adjustable;
the middle folding line pressing device (130) further comprises a middle folding line fixing frame (131), a middle folding line moving frame (132), a pinch roller adjusting piece (133) and a rotary connecting plate (134); the middle folding line moving frame (132) is clamped on the middle folding line fixing frame (131), one end of the rotary connecting plate (134) is rotatably connected with the middle folding line moving frame (132), the other end of the rotary connecting plate is rotatably connected with the middle folding line pressing wheel (135), and one end of the pressing wheel adjusting piece (133) is fixed on the middle folding line moving frame (132); the other end of the rotary connecting plate is rotatably connected with the middle part of the rotary connecting plate (134);
the rotary pinch roller adjusting member (133) is used for adjusting the length of the rotary pinch roller adjusting member.
4. The package folding apparatus of claim 1, wherein:
the two side broken line limiting devices (140) are two symmetrically arranged broken line limiting rods (141) or broken line limiting plates;
wherein the protruding part is positioned at an acute angle of one end of the broken line limiting rod (141).
5. The package folding apparatus of claim 1, wherein:
further comprising a folding and merging device (150), the folding and merging device (150) comprising a folding ram (153); the end part of the folding pressure head (153) is provided with a folding groove (153-1), and the folding part of the packaging bag is embedded into the folding groove (153-1);
the folding merging device (150) further comprises a folding merging bracket (151) and a folding connecting piece (152), one end of the folding connecting piece is fixed on the folding merging bracket, and the folding pressure head is arranged at the other end of the folding connecting piece.
6. The package folding apparatus of claim 1, wherein:
the folding and strengthening device (160) is embedded in the folding position of the packaging bag, and the position of the folding line (C) in the packaging bag is limited to be unchanged;
the folding strengthening device (160) is a roller.
7. The package folding apparatus of claim 4, wherein:
the position of the broken line limiting rod (141) is adjustable.
8. A folding method using the bag folding apparatus according to any one of claims 1 to 7, characterized in that:
the flat packing bag is laid on the conveying roller, and is folded and molded before entering the folding roller device, and is pressed between a first folding roller and a second folding roller of the folding roller device for extrusion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710117996.8A CN106863911B (en) | 2017-03-01 | 2017-03-01 | Packaging bag folding equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710117996.8A CN106863911B (en) | 2017-03-01 | 2017-03-01 | Packaging bag folding equipment and method |
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| Publication Number | Publication Date |
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| CN106863911A CN106863911A (en) | 2017-06-20 |
| CN106863911B true CN106863911B (en) | 2023-06-02 |
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| CN201710117996.8A Active CN106863911B (en) | 2017-03-01 | 2017-03-01 | Packaging bag folding equipment and method |
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| CN2175098Y (en) * | 1993-09-11 | 1994-08-24 | 闻德华 | Machine for forming gluing paper bags |
| CN2584523Y (en) * | 2002-10-10 | 2003-11-05 | 林火泉 | Folding and forming machine for PVC package box |
| US20050079310A1 (en) * | 2003-10-09 | 2005-04-14 | Germain Patrick C. St. | Folded roll product and method and apparatus for making and using the same |
| CN102001197B (en) * | 2010-09-29 | 2012-02-22 | 瑞安市瑞丰包装机械有限公司 | Security bag making machine |
| TWD146337S (en) * | 2010-12-17 | 2012-04-11 | 宜麗客股份有限公司 | handbag |
| TW201328859A (en) * | 2012-01-12 | 2013-07-16 | Lir Yu Co Ltd | Packaging bag and manufacturing method and manufacturing apparatus thereof |
| CN102602041B (en) * | 2012-03-15 | 2013-10-09 | 东华大学 | Intelligent plastic film bag making device |
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| CN103737979B (en) * | 2013-12-28 | 2016-05-18 | 宁波瑞成包装材料有限公司 | Automatically add mouth device |
| CN203805377U (en) * | 2014-03-24 | 2014-09-03 | 司徒达肯 | Automatic paper bag indenting machine |
| CN204249532U (en) * | 2014-12-05 | 2015-04-08 | 杭州萧山荣丽布艺有限公司 | A kind of anti-slip heat-transfering printing machine |
| CN104443571B (en) * | 2014-12-12 | 2017-05-24 | 佛山市松川机械设备有限公司 | Forming and sealing method for food packaging |
| CN204416691U (en) * | 2015-01-16 | 2015-06-24 | 杭州华颖丝绸有限公司 | Cloth inspecting machine transfer roller |
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| CN203888268U (en) * | 2014-05-30 | 2014-10-22 | 宁波美美包装有限公司 | Thin film folding machine |
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