CN112373770A - Novel full-automatic stretch film packaging machine - Google Patents
Novel full-automatic stretch film packaging machine Download PDFInfo
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- CN112373770A CN112373770A CN202011350144.1A CN202011350144A CN112373770A CN 112373770 A CN112373770 A CN 112373770A CN 202011350144 A CN202011350144 A CN 202011350144A CN 112373770 A CN112373770 A CN 112373770A
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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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
Abstract
The full-automatic stretch film packaging machine comprises a hydraulic paper kicking device, a driving device and a packaging machine, wherein the hydraulic paper kicking device comprises a supporting rack, a paper kicking arm, an oil cylinder seat, a bearing fixing seat, a buffer pad, a driven roller and an oil cylinder; the driving device comprises a driving roller, a fixed bearing seat, a driving motor and a fixed frame; the packaging machine comprises a base, a frame, a film feeding mechanism, a film guiding mechanism, a moving mechanism, a glue applying mechanism and a film cutting mechanism.
Description
Technical Field
The invention belongs to papermaking equipment, and relates to a novel full-automatic stretch film packaging machine which is used for carrying out radial stretch film packaging and conveying on paper rolls in a papermaking workshop.
The invention relates to a novel paper roll driving rolling mode, in particular to a device for driving a paper roll to rotate by hydraulic paper kicking and a motor. Hydraulic pressure plays paper device: the scroll is played the paper device through hydraulic pressure on the transfer chain and is played out the transfer chain to the scroll, drive scroll rotary device: the driving motor drives the driving roller to drive the paper roll to rotate, and the paper kicking roller of the hydraulic paper kicking device serves as a driven roller.
Background
At present, the mode of driving the paper roll for the full-automatic radial stretch film packaging machine in the paper mill is that after the paper roll is conveyed to a station of a designated chain plate conveyor, the paper roll is lifted up through jacking of an oil cylinder and separated from the chain plate conveyor, and the paper roll falls on a driving roller and a driven roller to perform the next process operation.
The structure that this kind of drive mode related to at present is complicated, and the installation is whole in the foundation pit, and operating space is limited, and later stage maintenance operation is inconvenient.
Disclosure of Invention
The invention aims to provide a novel full-automatic stretch film packaging machine which is suitable for being used on a paper roll conveying and packaging production line, can realize radial rotation of paper rolls with different diameters and widths, and has the advantages of high equipment automation degree, high production efficiency, low manufacturing cost, simple structure, low maintenance cost and convenience in maintenance.
The technical scheme of the invention is as follows:
full-automatic stretch film packagine machine is including hydraulic pressure kicking paper device, drive arrangement, packagine machine.
The hydraulic paper kicking device comprises a supporting rack, a paper kicking arm, an oil cylinder seat, a bearing fixing seat, a cushion pad, a driven roller and an oil cylinder, wherein the supporting rack is fixed on the ground in a chemical bolt or welding mode, the paper kicking arm is fixed on the supporting rack through the bearing fixing seat and a bolt, the oil cylinder is respectively connected with the supporting rack and the paper kicking arm through the oil cylinder seat and the bolt, the cushion pad is installed on the paper kicking arm, and the driven roller is fixed on the paper kicking arm. The driving device comprises a fixed frame, a driving roller, fixed bearing seats and a driving motor, wherein the fixed frame is fixed on the ground in a chemical bolt or welding mode, the fixed bearing seats are arranged at two ends of the driving roller, and the fixed bearing seats and the fixed frame are fixed through bolts.
The packaging machine comprises a base, a rack, a film feeding mechanism, a film guiding mechanism, a moving mechanism, a glue applying mechanism and a film cutting mechanism, wherein the base consists of a base rack, a rack and a linear guide rail, and the linear guide rail and the rack are fixed on the rack by bolts; the film feeding mechanism comprises a motor, a shaft seat, a shaft and a swing arm, wherein the shaft is fixed on two sides of the rack through the shaft seat, the motor is arranged at the shaft end, and the swing arm is arranged on the shaft; the film feeding mechanism comprises a fixed support, an air cylinder, a crank, a bearing seat, a film feeding driving roller, a film feeding compression roller, a gear and a motor, wherein the film feeding driving roller is fixed on two sides of the rack through the bearing seat, and the motor is arranged at the shaft end; one section of the cylinder is fixed on the frame, the other end of the cylinder is fixed on a crank, and a film feeding compression roller is fixedly arranged on the crank; the shafts of the film feeding driving roller and the film feeding pressing roller are both provided with gears; the film guiding mechanism comprises a roller, a film guiding bracket, a cylinder, a linear guide rail pair, a drag chain and a supporting seat, wherein the film guiding bracket is a welding part, and the roller is fixed on the film guiding bracket through a bolt; one end of the air cylinder is fixed on the frame, the other end of the air cylinder is fixed on the film guiding bracket, and the film guiding bracket is connected with the frame through a linear guide rail pair; the film cutting mechanism comprises a support, a cylinder, bearing seats, a pin shaft, a support and a heating wire, wherein the bearing seats are fixed at two ends of the support and are fixed on the rack through bolts; one end of the cylinder is fixed on the bracket, the other end of the cylinder is fixed on the frame, and the heating wire is fixed on the bracket; the glue applying mechanism comprises a light opening bracket, a shaft, a glue gun and a glue applying machine, the glue applying mechanism is fixed on the frame, the glue gun and the light opening bracket are fixed on the shaft, and two ends of the shaft are fixed on the frame; the moving mechanism comprises a driving motor, a driving gear and a rack, wherein the driving motor is arranged on the rack through an installation plate, and the driving gear is arranged at the shaft end of the driving motor; the frame is formed by welding a steel pipe and a steel plate;
the invention has the advantages that: the invention adopts a motor and hydraulic drive, and the sensors are arranged at all the operating parts of the equipment, thereby realizing the full-automatic control of the whole device. The combination of a hydraulic paper kicking device and a device for driving the paper roll to rotate by a motor is adopted to enable the paper roll to rotate. The moving mechanism drives the rack to move left and right along the axial direction of the paper roll through a gear and a rack so as to enable the film feeding mechanism, the film guiding mechanism, the film cutting mechanism and the sizing mechanism to move left and right, so that radial packaging of paper rolls with different widths is realized, the film guiding mechanism drives rollers on the film guiding mechanism to move back and forth along the radial direction through a cylinder and a linear guide rail pair, and thus, radial packaging of paper rolls with different diameters is realized. The hydraulic paper kicking device, the driving device and the packing machine are arranged on the ground, and the hydraulic paper kicking device is simple in structure and convenient to maintain.
Drawings
Fig. 1 is a main view of the novel full-automatic stretch film packaging machine.
Fig. 2 is a front view of the hydraulic kicking device.
Fig. 3 is a left side view of the hydraulic kicking device.
Fig. 4 is a view of a hydraulic kicker a-a.
Fig. 5 is a view of a hydraulic kicker B-B.
Fig. 6 is a view of a hydraulic kicker C-C.
Figure 7 is a front view of an apparatus for rotating a paper roll driven by a motor.
Fig. 8 is a main view of the packaging machine.
Fig. 9 is a front view of the film cutting mechanism.
Fig. 10 is a front view of the film-introducing mechanism.
Fig. 11 is a front view of the film feeding mechanism.
Fig. 12 is a front view of the film feeding mechanism.
Fig. 13 is a front view of the moving mechanism.
Fig. 14 is a front view of the sizing mechanism.
Fig. 15 is a front view of the base.
In the figure: 1-hydraulic paper kicking device, 2-steel slope, 3-driving device, 4-packaging machine, 101-supporting frame, 102-buffer block, 103-paper kicking arm, 104 scanner support, 105-oil cylinder, 106-oil cylinder seat, 107-photosetting pedestal, 108-bearing mounting seat, 109-driven roller, 110-bearing fixing seat, 111-bearing, 112-pin shaft, 113-sleeve, 114-shaft end baffle, 301-fixing frame, 302-driving roller, 303-fixing bearing seat, 304-driving motor, 41-film cutting mechanism, 42-film guiding mechanism, 43-film feeding mechanism, 44-film feeding mechanism, 45-frame, 46-moving mechanism, 47-sizing mechanism, 48-base, 411-support, 412-air cylinder, 413-bearing seat, 414-pin shaft, 415-support, 416-heating wire, 421-roller, 422-film guiding support, 423-air cylinder, 424-linear guide rail pair, 425-drag chain, 426-supporting seat, 45-frame, 431-fixed support, 432-cylinder, 433-crank, 434-bearing seat 435-film-feeding driving roller, 436-film-feeding press roller, 437-gear, 438-motor, 441-shaft seat, 442-swing arm, 443-cylinder, 444-mandrel, 445-speed-reducing motor, 461-driving motor, 462-driving gear, 471-photoswitch bracket, 472-shaft, 473-glue gun, 474-glue machine, 481-linear guide rail, 482-rack and 483-base frame.
Detailed Description
The invention is further described with reference to the following figures and examples.
FIG. 1 shows: the novel full-automatic stretch film packaging machine comprises a hydraulic paper kicking device (1), a steel slope (2), a driving device (3), a packaging machine (4) and the like.
FIGS. 2 to 6 show: the hydraulic paper kicking device (1) mainly comprises a supporting rack (101), a buffer block (102), a paper kicking arm (103), a scanner support (104), an oil cylinder (105), an oil cylinder seat (106), a photoswitch support (107), a bearing mounting seat (108), a driven roller (109), a bearing fixing seat (110), a bearing (111), a pin shaft (112), a sleeve (113) and a shaft end baffle (114). Support frame (101) are fixed in subaerial through chemical bolt or welded mode, on fixed support frame (101) of buffer block (102) bolt, play paper arm (103) and pass through bearing fixing base (110), bearing (111) are fixed in the both sides of supporting frame (101), driven voller (109) pass through bearing fixing base (110), bearing (111) are fixed on playing paper arm (103), hydro-cylinder (105) are fixed in frame (101) through hydro-cylinder seat (106), play on paper arm (103), through round pin axle (112) between hydro-cylinder seat (106) and hydro-cylinder (105), sleeve (113), axle head baffle (114) are connected fixedly. The light opening support (107) and the related aluminum profiles are fixed on the rack through bolts, and the scanner support (104) and the related aluminum profiles are fixed on the rack through bolts.
FIG. 7 shows: the driving device (3), namely a device for driving the paper roll to rotate by a motor, comprises a fixed frame (301), a driving roller (302), a fixed bearing seat (303) and a driving motor (304). The fixed frame (301) is fixed on the ground through chemical bolts or welding, fixed bearing seats (303) are arranged at two ends of the driving roller (302), and the fixed bearing seats (303) and the fixed frame (301) are fixed through bolts. The driving motor (304) is arranged on one side of the driving roller (302) and is fixed on the frame (301) in a mechanical mode.
FIG. 8 shows: the packaging machine (4) is composed of a film cutting mechanism (41), a film guiding mechanism (42), a film feeding mechanism (43), a film feeding mechanism (44), a rack (45), a moving mechanism (46), a sizing mechanism (47) and a base (48). The base (48) is fixed on the ground through chemical bolts, the rack (45) is fixed on a sliding block of a linear guide rail (481) of the base (48) through bolts, a driving motor (461) in the moving mechanism (46) is fixed on the rack (45) through bolts, a driving gear (462) is installed at the shaft end of the driving motor, the driving gear (462) is meshed with a rack (482) in the base (48), a support (415) of the film cutting mechanism (41) is fixed on two sides of the rack (45) through a bearing seat (413), one end of an air cylinder (412) is fixed on the support (415), the other end of the air cylinder is fixed on a support of the rack (45) through a hinge joint, a heating wire (416) is fixed on the support (415), a sliding block of a linear guide rail pair (424) of the film guiding mechanism (42) is fixed on the rack (45) through bolts, a sliding block guide rail of the linear guide rail pair, the rod (421) is fixed at the front end of the membrane guiding support (422) through a bolt, one end of the cylinder (423) is fixed on the frame (45), and the other end is fixed on the membrane guiding support (422) through a hinge joint and a support. The film feeding driving roller (435) is fixed on two sides of the rack (45) through a bearing seat (434), a motor (438) is installed at the shaft end of the film feeding driving roller (435), and the motor (438) is fixed on the rack (45) through an auxiliary part. One section of the cylinder (432) is fixed on the rack (45), one end of the cylinder is fixed at the middle position of the crank (433) through a hinge joint, a bearing is placed in one end of the crank (433) and fixed on the rack (45), a bearing is placed in the other end of the crank, and two ends of the film feeding compression roller (436) are fixed in the bearing. A gear (437) is mounted on the shafts of the film feeding driving roller (435) and the film feeding press roller (436), and the two gears are meshed. A mandrel (444) of the film feeding mechanism (44) is fixed on two sides of the rack (45) through a shaft seat (441), a speed reducing motor (445) is installed at the shaft end of the mandrel (444), the speed reducing motor (445) is fixed on the rack (45) through a bolt, and swing arms (442) are installed on two sides of the mandrel (444). A glue gun (473) and a light opening bracket (471) of the glue applying mechanism (47) are fixed on a shaft (472) through brackets, two ends of the shaft (472) are fixed on a rack (45), and a glue machine (474) is fixed on the outer side of the rack (45).
FIG. 9 shows: the film cutting mechanism (41) is composed of a support (411), an air cylinder (412), a bearing seat (413), a pin shaft (414), a support (415), a heating wire (416) and the like and is fixed on the rack (45). A bearing seat (413) is fixed at two ends of a support (415), the bearing seat (413) is fixed on a rack (45) through bolts, one end of a cylinder (412) is fixed on the support (415), the other end of the cylinder is fixed on the rack (45), and a heating wire (416) is fixed on the support (415).
FIG. 10 shows: the film guiding mechanism (42) comprises a roller (421), a film guiding support (422), a cylinder (423), a linear guide rail pair (424), a drag chain (425), a supporting seat (426) and the like. The film guiding support (422) is a welding part, the roller (421) is fixed on the film guiding support (422) through a bolt, one end of the air cylinder (423) is fixed on the rack (45), the other end of the air cylinder is fixed on the film guiding support (422), and the film guiding support (422) is connected with the rack (45) through the linear guide rail pair (424).
FIG. 11 shows: the film feeding mechanism (43) comprises a fixed support (431), an air cylinder (432), a crank (433), a bearing seat (434), a film feeding driving roller (435), a film feeding press roller (436), a gear (437), a motor (438) and the like. The film feeding driving roller (435) is fixed on two sides of the frame (45) through a bearing seat (434), and a motor (438) is arranged at the shaft end. One section of the cylinder (432) is fixed on the frame (45), one end of the cylinder is fixed on the crank (433), and the film feeding press roller (436) is fixedly arranged on the crank (433). Gears (437) are mounted on the shafts of the film feeding driving roller (435) and the film feeding press roller (436).
FIG. 12 shows: the film feeding mechanism (44) comprises a shaft seat (441), a swing arm (442), a cylinder (443), a mandrel (444) and a motor (445). A mandrel (444) of the film feeding mechanism (44) is fixed on two sides of the rack (45) through a shaft seat (441), a motor (445) is installed at the shaft end of the mandrel (444), the motor (445) is fixed on the rack (45) through a bolt, and swing arms (442) are installed on two sides of the shaft (444).
FIG. 13 shows: the moving mechanism (46) is composed of a driving motor (461), a driving gear (462) and the like, the motor (461) is installed on the rack (45) through an installation plate, and the driving gear (462) is installed at the shaft end of the driving motor (461).
FIG. 14 shows: the glue applying mechanism (47) comprises a light opening bracket (471), a shaft (472), a glue gun (473), a glue machine (474) and the like. The glue gun (473) and the light opening bracket (471) are fixed on the shaft (472), and two ends of the shaft (472) are fixed on the frame (45).
FIG. 15 shows: the base (48) comprises a linear guide rail (481), a rack (482), a base frame (483) and the like.
The working process is as follows: the position of the paper roll is determined by the light opening in the light opening seats (107) on both sides of the support frame (101) when the paper roll is fed into the range of the hydraulic paper kicking device. After the paper roll position is confirmed, the piston rod of the oil cylinder (105) extends, at the moment, the driven roller (109) on the paper kicking arm (103) moves forwards, when the driven roller (109) is in contact with the paper roll, the piston rod of the oil cylinder (105) continues to extend, the paper roll follows the steel slope (2), the driving roller (302) and the paper roll slowly separates from the ground until the driving roller (302), the central shaft of the driven roller (109) is at the same height, and the piston rod of the oil cylinder (105) stops extending. At the moment, the driving motor (304) drives the driving roller (302) to rotate, and the driving roller (302) rotates to drive the paper roll to rotate and the driven roller (109) to rotate. A driving motor (461) and a driving gear (462) of a moving mechanism (46) move left and right on a rack (482), after a proper position is reached, a roller (421) in a film guiding mechanism (42) is attached to a paper roll, the film guiding mechanism (42) starts to slowly feed the film, the film feeding speed and the rotating speed of a film feeding driving roller (435) form a certain proportion to tension the stretched film, a glue machine (474) of a glue applying mechanism (47) starts to spray glue to the stretched film, the stretched film and the paper roll are adhered together by the glue, when the head of the stretched film rotates out of a driven roller (109), the driving motor (304) drives a driving roller (302) to rapidly rotate, the paper roll starts to be packaged, a driving motor (461) and a driving gear (462) in the moving mechanism (46) move back and forth on the rack (482) so as to drive a rack (45) to move left and right along the axial direction of the paper roll, thereby enabling a film feeding mechanism (44, the film guiding mechanism (42), the film cutting mechanism (41) and the gluing mechanism (47) move left and right to spirally wrap the stretch film on the paper roll. After the paper rolls are completely wrapped with the stretch films, the film cutting mechanism (41) cuts off the stretch films, the film guiding mechanism (42) recovers the original position, the moving device (46) recovers the original position, the paper rolls fall on the chain plate machine after the hydraulic paper kicking device (1) recovers the original position, and the packaged paper rolls are conveyed out to wait for the next paper roll to be packaged.
Claims (2)
1. Full-automatic stretch film packagine machine, play paper device, drive arrangement, packagine machine, its characterized in that including hydraulic pressure: the hydraulic paper kicking device comprises a supporting rack, a paper kicking arm, an oil cylinder seat, a bearing fixing seat, a buffer cushion, a driven roller and an oil cylinder, wherein the supporting rack is fixed on the ground in a chemical bolt or welding mode; the driving device comprises a fixed frame, a driving roller, fixed bearing seats and a driving motor, wherein the fixed frame is fixed on the ground in a chemical bolt or welding mode, the fixed bearing seats are arranged at two ends of the driving roller, and the fixed bearing seats and the fixed frame are fixed through bolts.
2. The fully automatic stretch film wrapping machine according to claim 1, wherein: the packaging machine comprises a base, a rack, a film feeding mechanism, a film guiding mechanism, a moving mechanism, a glue applying mechanism and a film cutting mechanism, wherein the base consists of a base rack, a rack and a linear guide rail, and the linear guide rail and the rack are fixed on the rack by bolts; the film feeding mechanism comprises a motor, a shaft seat, a shaft and a swing arm, the shaft is fixed on two sides of the frame through a bearing seat, a speed reducing motor is installed at the shaft end, and the swing arm is installed on the shaft; the film feeding mechanism comprises a fixed support, an air cylinder, a crank, a bearing seat, a film feeding driving roller, a film feeding compression roller, a gear and a motor, wherein the film feeding driving roller is fixed on two sides of the rack through the bearing seat, and the motor is arranged at the shaft end; one section of the cylinder is fixed on the frame, the other end of the cylinder is fixed on a crank, and a film feeding compression roller is fixedly arranged on the crank; the shafts of the film feeding driving roller and the film feeding pressing roller are both provided with gears; the film guiding mechanism comprises a roller, a film guiding bracket, a cylinder, a linear guide rail pair, a drag chain and a support, wherein the film guiding bracket is a welding part, and the roller is fixed on the film guiding bracket through a bolt; one end of the air cylinder is fixed on the frame, the other end of the air cylinder is fixed on the film guiding bracket, and the film guiding bracket is connected with the frame through a linear guide rail pair; the film cutting mechanism comprises a support, a cylinder, a bearing seat, a pin shaft, a support and a heating wire, wherein bearing seats are fixed at two ends of the support, and the bearing seat is fixed on the rack through bolts; one end of the cylinder is fixed on the bracket, and the other end of the cylinder is fixed on the frame; the heating wire is fixed on the bracket; the glue applying mechanism comprises a light opening bracket, a shaft, a glue gun and a glue applying machine, the glue applying mechanism is fixed on the frame, the glue gun and the light opening bracket are fixed on the shaft, and two ends of the shaft are fixed on the frame; the moving mechanism comprises a driving motor, a driving gear and a rack, wherein the driving motor is arranged on the rack through an installation plate, and the driving gear is arranged at the shaft end of the driving motor; the frame is formed by welding a steel pipe and a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350144.1A CN112373770B (en) | 2020-11-26 | 2020-11-26 | Novel full-automatic stretch film packaging machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350144.1A CN112373770B (en) | 2020-11-26 | 2020-11-26 | Novel full-automatic stretch film packaging machine |
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| CN112373770A true CN112373770A (en) | 2021-02-19 |
| CN112373770B CN112373770B (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011350144.1A Active CN112373770B (en) | 2020-11-26 | 2020-11-26 | Novel full-automatic stretch film packaging machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1424059A (en) * | 1964-09-29 | 1966-01-07 | Beloit Eastern Corp | Wrapping device for paper rolls and the like |
| EP0048104A1 (en) * | 1980-09-15 | 1982-03-24 | NORDSTROM, John E. | Article handling apparatus |
| CN1421359A (en) * | 2002-12-26 | 2003-06-04 | 长沙长泰输送包装设备有限公司 | Fully automatic double-workplace paper roll packing method and packing machine |
| CN2734631Y (en) * | 2004-10-12 | 2005-10-19 | 长沙长泰输送包装设备有限公司 | Semi-automatic stretching film paper roll packing machine |
| CN204264490U (en) * | 2014-11-25 | 2015-04-15 | 长沙长泰机械股份有限公司 | Full automaticity radial drawing film wrapping machine |
| CN103818715B (en) * | 2014-03-18 | 2016-04-13 | 长沙长泰智能装备有限公司 | Electronicly play paper machine |
| CN105329658B (en) * | 2015-09-30 | 2017-10-31 | 金东纸业（江苏）股份有限公司 | A kind of means for automatically placing paper onto |
-
2020
- 2020-11-26 CN CN202011350144.1A patent/CN112373770B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1424059A (en) * | 1964-09-29 | 1966-01-07 | Beloit Eastern Corp | Wrapping device for paper rolls and the like |
| EP0048104A1 (en) * | 1980-09-15 | 1982-03-24 | NORDSTROM, John E. | Article handling apparatus |
| CN1421359A (en) * | 2002-12-26 | 2003-06-04 | 长沙长泰输送包装设备有限公司 | Fully automatic double-workplace paper roll packing method and packing machine |
| CN2734631Y (en) * | 2004-10-12 | 2005-10-19 | 长沙长泰输送包装设备有限公司 | Semi-automatic stretching film paper roll packing machine |
| CN103818715B (en) * | 2014-03-18 | 2016-04-13 | 长沙长泰智能装备有限公司 | Electronicly play paper machine |
| CN204264490U (en) * | 2014-11-25 | 2015-04-15 | 长沙长泰机械股份有限公司 | Full automaticity radial drawing film wrapping machine |
| CN105329658B (en) * | 2015-09-30 | 2017-10-31 | 金东纸业（江苏）股份有限公司 | A kind of means for automatically placing paper onto |
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| CN112373770B (en) | 2022-07-01 |
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Address after: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee after: China Light Changtai (Changsha) Intelligent Technology Co.,Ltd. Address before: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee before: CHANGSHA CHAINT MACHINERY Co.,Ltd. |
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