Novel cast film automatic rewinding device

Abstract

The utility model relates to a novel automatic rewinding device for a cast film. The novel automatic rewinding device comprises an unwinding mechanism, a material cutting mechanism, a material changing mechanism, a compression roller mechanism, a turntable mechanism and a power mechanism, according to the utility model, a plurality of groups of top heads and power rollers are arranged on the turntable, so that the top heads are respectively positioned at roll changing, rolling and roll unloading working positions, and the top heads at different working positions respectively and simultaneously execute roll changing, rolling and unrolling work, so that non-stop full-automatic rewinding is realized, and the rewinding efficiency of a cast film is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rewinding machinery of cast film production, concretely relates to a novel cast film automatic rewinding device. BACKGROUND

[0002] The existing cast film rewinding device is in series connection for rewinding, winding and unwinding in turn, and the next process can be carried out only after the previous process is completed, and the equipment needs to be frequently started and stopped, so the cast film rewinding efficiency is low. UTILITY MODEL CONTENTS

[0003] In view of the low rewinding efficiency of the rewinding, winding and unwinding processes of the cast film in series connection, the utility model provides a mechanism for realizing automatic rewinding without stopping during rewinding, winding and unwinding in parallel, which can greatly improve the efficiency of cast film rewinding.

[0004] A novel cast film automatic rewinding device, comprising: a unwinding mechanism, a material cutting mechanism, a material changing mechanism, a pressure roller mechanism, a rotating disc mechanism, a power mechanism, a power roller mechanism, a power roller mechanism and a top head mechanism; the rotating disc mechanism is provided with a central shaft rotating disc, and the central shaft rotating disc is movably fixed on the rack and can freely rotate through the setting of multiple groups of rotating disc radial supporting wheels and rotating disc axial supporting wheels; three groups of winding power roller swing arm assemblies are arranged on the winding power roller mechanism, the winding power roller swing arm assemblies are equally distributed and installed on the central shaft rotating disc, the winding power roller is movably installed at one end of the winding power roller swing arm through a first bearing, the winding power roller swing arm is movably connected with a fourth air cylinder, the fourth air cylinder is fixedly installed on the central shaft rotating disc through a first air cylinder fixing shaft, one end of the winding power roller swing arm is fixedly connected with a winding power roller central shaft through an expansion sleeve, and the winding power roller central shaft is movably installed on the central shaft rotating disc through a second bearing;

[0005] Three groups of top heads are arranged on the top head mechanism; the left side top head is movably connected with a top head slide rod one through a third bearing, the top head can rotate relative to the top head slide rod one, the top head slide rod one is fixedly connected with a first top head air cylinder piston rod, the first top head air cylinder is fixedly connected with a top head air cylinder mounting seat, and the top head air cylinder mounting seat is fixedly connected with the central shaft rotating disc through a first meson;

[0006] The right side top head is movably connected with a top head slide rod two through a third bearing, the top head can rotate relative to the top head slide rod two, one end of the top head slide rod two is fixedly connected with a second top head air cylinder, the second top head air cylinder is fixedly connected with an adjusting slide block through an air cylinder fixing piece, the adjusting slide block is fixedly connected with a slide rail seat of a slide rail, the slide rail is fixedly connected with a top head slide rail seat, and the top head slide rail seat is fixedly connected with the central shaft rotating disc.

[0007] Further, the unwinding mechanism is provided with an unwinding arm, the film roll to be rewound is fixed on the unwinding shaft, the unwinding arm is installed on the unwinding arm, the sector gear is fixedly connected with the turbine, the turbine is fixedly connected with the unwinding arm, the worm is matched with the turbine, the hand wheel is fixedly installed on the worm, the first rack is matched with the sector gear, the first pressure roller is matched with the first rack to limit the first rack, one end of the first rack is fixedly connected with the piston rod of the first cylinder.

[0008] Further, the cutting mechanism is provided with a cutting knife, the cutting knife is fixedly installed on the cutting shaft, the cutting shaft is fixedly connected with the cutting arm, the cutting arm is fixedly connected with the cutting gear through the knife arm fixing seat, the cutting gear is provided below the positioning gear, one side is provided with two groups of second pressure rollers, the second rack is matched with the cutting gear, the positioning gear and the second pressure roller, and the second rack is fixedly connected with the piston rod of the second cylinder.

[0009] Further, the material changing mechanism comprises a transmission shaft, a third cylinder, a conveying arm, an adjusting side plate, an electrostatic rod mounting seat, a limiting side plate, a limiting side plate sliding sleeve, a paper tube seat upper baffle, a paper tube seat lower baffle and an electrostatic rod.

[0010] The transmission shaft is movably installed on the rack through fourth bearings at both ends of the transmission shaft and the transmission shaft fixing seat, the conveying arm is provided at both ends of the transmission shaft, one end of the conveying arm is fixedly connected with the transmission shaft, one end of the conveying arm is movably connected with the third cylinder, the third cylinder is movably installed on the second cylinder fixed shaft, the limiting side plate is movably connected with the transmission shaft through a fifth bearing, and the limiting side plate is movably connected with the adjusting guide rod through an adjusting seat; the adjusting side plate is fixedly installed on the limiting side plate sliding sleeve; the paper tube seat upper baffle and the paper tube seat lower baffle are movably installed on the adjusting side plate; the material changing mechanism is additionally provided with an electrostatic rod mounting seat, the electrostatic rod mounting seat is fixedly connected with the transmission shaft, and the electrostatic rod is fixedly installed on the electrostatic rod mounting seat.

[0011] Further, the pressure roller mechanism is provided with a rubber roller, sixth bearings are arranged at both ends of the rubber roller, the rubber roller is movably connected with the rubber roller shaft center through the sixth bearings, second mesons are arranged at both sides of the sixth bearings to limit the sixth bearings and fix the position of the rubber roller relative to the rubber roller shaft center, the rubber roller shaft center is fixedly installed at one end of the pressure roller arm, one end of the pressure roller arm is movably connected with the pressure roller arm fixed shaft, the middle part of the pressure roller arm is movably connected with the pressure roller cylinder, and the rubber roller can rotate flexibly around the shaft center and the pressure roller arm fixed shaft.

[0012] Further, the power roller mechanism comprises an unwinding power roller and a winding power roller mechanism, the unwinding power roller is movably fixed on the rack through seat bearings at both ends of the unwinding power roller, one end of the unwinding power roller is provided with a counting wheel, and a counting induction switch is fixedly installed on a counting induction switch seat.

[0013] Further, the power mechanism is provided with a power roller motor, the power roller driving synchronous pulley is fixedly connected with the output shaft of the power roller motor, the center synchronous pulley is movably installed on the center shaft turntable, the center synchronous pulley can rotate relative to the center shaft turntable, the winding driving synchronous pulley is movably installed on the winding power roller center shaft, the winding driving synchronous pulley can rotate relative to the winding power roller center shaft, the winding driven synchronous pulley is fixedly installed on the winding power roller, the winding driven synchronous pulley rotates synchronously with the winding power roller, the winding driven synchronous pulley and the winding driving synchronous pulley are connected through the winding power roller synchronous belt, the center synchronous pulley and the three groups of winding driving synchronous pulleys are connected through the center wheel synchronous belt, the center synchronous pulley and the unwinding power roller are connected through the power roller synchronous belt, when the power roller motor rotates, the motor shaft drives the power roller driving synchronous pulley to rotate clockwise, further drives the power roller synchronous belt to rotate clockwise, further drives the unwinding power roller to rotate clockwise, the center synchronous pulley rotates counterclockwise to drive the center wheel synchronous belt to rotate clockwise, further drives the winding driving synchronous pulley to rotate clockwise to drive the winding power roller synchronous belt to rotate clockwise, further drives the winding driven synchronous pulley to rotate clockwise, further drives the winding driven synchronous pulley to rotate clockwise to drive the winding power roller to rotate clockwise.

[0014] The novel automatic casting film rewinding device has the advantages that

[0015] 1. The uninterrupted casting film rewinding full-automatic sleeve, winding and unwinding work flow can be realized, and the rewinding efficiency of the equipment is improved.

[0016] 2. The multiple winding rollers and the top head work alternately, the continuous working strength of the mechanism is reduced compared with the single winding roller and the top head frequent shutdown and start work, and the stability of the equipment operation is improved.

[0017] 3. The device can be adjusted according to different specifications of the mother roll and the child roll paper tube, is suitable for rewinding of different mother rolls and child rolls, and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 : a structure principle view of a novel automatic casting film rewinding device

[0019] Figure 2 : a structure principle view of a unwinding mechanism of a novel automatic casting film rewinding device

[0020] Figure 3 : a structure principle view of a material cutting mechanism of a novel automatic casting film rewinding device

[0021] Figure 4 : a structure principle view of a material changing mechanism of a novel automatic casting film rewinding device

[0022] Figure 5A new type of automatic rewinding device for cast film roll mechanism structure principle diagram

[0023] Figure 6 A new type of automatic rewinding device for cast film roll mechanism structure principle diagram

[0024] Figure 7 A new type of automatic rewinding device for cast film roll mechanism structure principle diagram

[0025] Figure 8 A new type of automatic rewinding device for cast film roll mechanism structure principle diagram

[0026] Figure 9 A new type of automatic rewinding device for cast film roll mechanism structure principle diagram DETAILED DESCRIPTION

[0027] The technical scheme of the utility model is further explained below in combination with the drawings and specific implementation process.

[0028] As shown in Figures 1 to 9 A new type of automatic rewinding device for cast film, its main components have unwinding mechanism 01, material cutting mechanism 02, material changing mechanism 03, pressure roller mechanism 04, turntable mechanism 05 and power mechanism 06.

[0029] As shown in Figure 1 And Figure 2 Unwinding mechanism 01 is provided with unwinding arm 14, the film roll to be rewound is fixed on unwinding shaft 11, fan-shaped gear 24 is fixedly connected with turbine 19, turbine 19 is fixedly connected with unwinding arm 14, worm 16 cooperates with turbine 19, hand wheel 18 is fixedly installed on worm 16, first rack 25 cooperates with fan-shaped gear 24, first pressure roller 26 abuts against first rack 25 to limit first rack 25, one end of first rack 25 is fixedly connected with the piston rod of first cylinder 10.

[0030] When first cylinder 10 works, the piston rod is in the state of contraction, so that the film roll to be rewound is tightly attached to unwinding power roller 95. When adjusting hand wheel 18 clockwise, unwinding arm 14 rotates counterclockwise around unwinding center shaft 21, so that the film roll to be rewound moves away from unwinding power roller 95, and vice versa, so that the film roll to be rewound moves close to unwinding power roller 95, realizing the unwinding of the parent roll of different diameter. The width of unwinding arm 14 can be adjusted, the width is increased by adjusting to the two sides, the width is reduced by adjusting to the inside, realizing the unwinding of the parent roll of different width.

[0031] As shown in Figure 3As shown, the cutting mechanism 02 is provided with a cutting knife 31, which is fixedly installed on a cutting shaft 34, the cutting shaft 34 is fixedly connected with a cutting arm 35, the cutting arm 35 is fixedly connected with a cutting gear 36 through a knife arm fixing seat 30, a positioning gear 40 is arranged below the cutting gear, two groups of second pressing wheels 42 are arranged on one side, a second rack 38 cooperates with the cutting gear 36, the positioning gear 40 and the second pressing wheels 42, and the second rack 38 is fixedly connected with a piston rod of a second cylinder 33.

[0032] The cutting knife 31 can rotate around the axis of the knife arm fixing seat 30, when the piston rod of the second cylinder 33 is extended, the cutting knife 31 rotates counterclockwise around the axis of the knife arm fixing seat 30 to reach a cutting position, and when the piston rod of the second cylinder 33 is retracted, the cutting knife 31 rotates clockwise around the axis of the knife arm fixing seat 30 to return to the original position.

[0033] As shown, Figure 4 The cutting mechanism 02 is provided with a cutting knife 31, which is fixedly installed on a cutting shaft 34, the cutting shaft 34 is fixedly connected with a cutting arm 35, the cutting arm 35 is fixedly connected with a cutting gear 36 through a knife arm fixing seat 30, a positioning gear 40 is arranged below the cutting gear, two groups of second pressing wheels 42 are arranged on one side, a second rack 38 cooperates with the cutting gear 36, the positioning gear 40 and the second pressing wheels 42, and the second rack 38 is fixedly connected with a piston rod of a second cylinder 33.

[0034] The cutting mechanism 02 is provided with a cutting knife 31, which is fixedly installed on a cutting shaft 34, the cutting shaft 34 is fixedly connected with a cutting arm 35, the cutting arm 35 is fixedly connected with a cutting gear 36 through a knife arm fixing seat 30, a positioning gear 40 is arranged below the cutting gear, two groups of second pressing wheels 42 are arranged on one side, a second rack 38 cooperates with the cutting gear 36, the positioning gear 40 and the second pressing wheels 42, and the second rack 38 is fixedly connected with a piston rod of a second cylinder 33. The adjusting side plate 54 can rotate around the transmission shaft, when the piston rod of the third cylinder 57 is extended, the adjusting side plate 54 rotates counterclockwise around the transmission shaft, the upper paper tube seat baffle 63 and the lower paper tube seat baffle 62 move to a roll changing working position, and vice versa, the positions of the upper paper tube seat baffle 63 and the lower paper tube seat baffle 62 return to the original positions. The limiting side plate 50 can move in the axial direction of the transmission shaft 49 and the adjusting guide rod 51. When the limiting side plate 50 is adjusted to the two sides, the inner width increases, and when the limiting side plate 50 is adjusted to the inside, the inner width decreases, which is suitable for storing paper tubes with different widths. The adjusting side plate 54 is provided with a U-shaped hole, the position of the upper paper tube seat baffle 63 can be adjusted within the range of the U-shaped hole, when the upper paper tube seat baffle 63 is adjusted upward, the distance between the upper paper tube seat baffle 63 and the lower paper tube seat baffle 62 increases, when the upper paper tube seat baffle 63 is adjusted downward, the distance between the upper paper tube seat baffle 63 and the lower paper tube seat baffle 62 decreases, which is suitable for using paper tubes with different roll diameters.

[0035] As Figure 5 shown, the pressure roller mechanism 04 is provided with a rubber roller 66, the two ends of the rubber roller 66 are provided with a sixth bearing 71, the rubber roller 66 is movably connected with the rubber roller shaft center 64 through the sixth bearing 71, the two sides of the sixth bearing 71 are provided with a second intermediate 70 to limit the sixth bearing 71, so that the position of the rubber roller 66 is fixed relative to the rubber roller shaft center 64, the rubber roller shaft center 64 is fixedly installed at one end of the pressure roller arm 65, one end of the pressure roller arm 65 is movably connected with the pressure roller arm fixed shaft 67, the middle part of the pressure roller arm 65 is movably connected with the pressure roller cylinder 68, the rubber roller 66 can rotate flexibly around the rubber roller shaft center 64 and can rotate around the pressure roller arm fixed shaft 67.

[0036] When the piston rod of the pressure roller cylinder 68 is extended, the pressure roller arm 65 rotates clockwise around the pressure roller arm fixed shaft 67, and the rubber roller 66 moves away from the winding power roller 99. When the piston rod of the pressure roller cylinder 68 is retracted, the pressure roller arm 65 rotates counterclockwise around the pressure roller arm fixed shaft 67, and the rubber roller 66 tightly abuts the winding power roller 99.

[0037] As Figure 6 shown, the turntable mechanism 05 is provided with a center shaft turntable 72, a plurality of turntable radial supporting wheels 76 and turntable axial supporting wheels 77 are arranged around the center shaft turntable 72 to movably fix the center shaft turntable 72 on the rack and enable it to rotate freely. The output shaft of the turntable motor 73 is fixedly connected with the center shaft turntable 72, the turntable motor 73 is fixedly installed on the turntable motor fixed seat 74, and the turntable motor fixed seat 74 is fixedly installed on the rack through the connecting rod 75. Three sets of winding power roller mechanisms 08 and head mechanisms 09 are installed on the center shaft turntable 72 in three equal parts. The center shaft turntable 72 is provided with a turntable induction switch 79 and three turntable induction blocks 81 on one side, the turntable induction switch 79 is fixedly installed on the turntable induction switch seat 80, the turntable induction switch 79 is fixedly installed on the side of the center shaft turntable 72, and the three turntable induction blocks 81 are fixedly installed on the center shaft turntable 72 in three equal parts corresponding to the positions of the head mechanisms 09.

[0038] When the turntable motor 73 works, the center shaft turntable 72 rotates clockwise, and the winding power roller mechanisms 08, the head mechanisms 09 and the turntable induction blocks 81 installed on the center shaft turntable 72 in equal parts rotate and switch positions, and the center shaft turntable 72 rotates by 120°, the turntable induction switch 79 senses the turntable induction block 81, at this time the turntable motor 73 stops working to make the center shaft turntable 72 stop rotating, and the turntable mechanism 05 completes a position switching.

[0039] As Figure 7 , Figure 8As shown, the power roller mechanism 07 comprises an unwinding power roller 95 and a winding power roller mechanism 08. The unwinding power roller 95 is movably fixed to the frame by two end bearing seats 96. One end of the unwinding power roller is provided with a counting wheel 105 and a counting induction switch 106 fixedly installed on a counting induction switch seat 107. The winding power roller mechanism 08 is provided with three sets of winding power roller swing arm assemblies, which are equally distributed and installed on the central shaft turntable 72. The winding power roller 99 is movably installed at one end of the winding power roller swing arm 103 through a first bearing 104. The winding power roller swing arm 103 is movably connected with the fourth air cylinder 102. The fourth air cylinder 102 is fixedly installed on the central shaft turntable 72 through a first air cylinder fixing shaft 101. One end of the winding power roller swing arm 103 is fixedly connected with the winding power roller central shaft 98 through an expansion sleeve 100. The winding power roller central shaft 98 is movably installed on the central shaft turntable 72 through a second bearing 97.

[0040] The winding power roller 99 can rotate around the winding power roller central shaft 98 within the arc-shaped U-shaped hole range on the central shaft turntable 72 while rotating. When the piston cylinder of the fourth air cylinder 102 is extended, the winding power roller 99 rotates counterclockwise around the winding power roller central shaft 98. The winding power roller 99 tightly abuts the paper tube or sub-roll to rotate the paper tube or sub-roll through friction. Conversely, the winding power roller 99 is away from the paper tube or sub-roll.

[0041] As shown in the drawings, Figure 9As shown, the top head mechanism 09 is provided with three groups of top head 108, the left side top head 108 and the top head slide rod one 109 are connected through the third bearing 127, the top head 108 can rotate relative to the top head slide rod one 109, the top head slide rod one 109 is fixedly connected with the first top head cylinder 110 piston rod, the first top head cylinder 110 is fixedly connected with the top head cylinder mounting seat 111, the top head cylinder mounting seat 111 is fixedly connected with the center shaft turntable 72 through the first intermediate 112. The top head slide seat 126 is fixedly connected with the center shaft turntable 72, and is movably connected with the top head slide rod one 109 and the top head slide rod two 113, the right side top head 108 and the top head slide rod two 113 are movably connected through the third bearing 127, the top head 108 can rotate relative to the top head slide rod two 113, one end of the top head slide rod two 113 is fixedly connected with the second top head cylinder 125, the second top head cylinder 125 is fixedly connected with the adjusting slide block 124 through the cylinder fixing piece 123, the adjusting slide block 124 is fixedly connected with the slide rail seat of the slide rail 122, the slide rail 122 is fixedly connected with the top head slide rail seat 120, the top head slide rail seat 120 is fixedly connected with the center shaft turntable 72, the top head fixed ring 115 is fixedly connected with the three top head slide rod seats 120 evenly arranged on the center shaft turntable 72, one end of the adjusting lead screw 121 is movably connected with the top head fixed ring 115, and the other end is movably connected with the adjusting slide block 124, the adjusting driven sprocket 119 is fixedly installed on one end of the adjusting lead screw 121, the three adjusting driven sprockets 119 are synchronously interconnected through the chain 117 and the adjusting driving sprocket 118, the output shaft of the micro motor 114 is fixedly connected with the adjusting driving sprocket 118, and the chain tensioning wheel 116 is movably installed on the top head fixed ring 115 to provide tension for the chain 117.

[0042] When the piston rod of the first top head cylinder 110 is extended, the top head 108 moves inward to clamp the paper tube. When the piston rod of the first top head cylinder 110 is retracted, the top head 108 moves outward to release the paper tube from the top head. When the motor shaft of the micro motor 114 rotates counterclockwise, the adjusting driving sprocket 118 rotates counterclockwise, which synchronously drives the three groups of top head 108 to rotate counterclockwise through the chain 117, and then drives the adjusting lead screw to rotate counterclockwise, and then drives the adjusting slide block 124 and the top head slide rod two 113 to move inward, and the inner distance of the top head 108 is reduced. Conversely, the inner distance of the top head 108 is increased. When different width specifications of paper tubes are needed, the adjustment of the top head distance is realized by controlling the micro motor 114 to adapt to different width paper tubes.

[0043] The power mechanism 06 is composed of a power roller synchronous belt 93, a unwinding driven synchronous pulley 92, a center synchronous belt tension pulley 90, a winding driven synchronous pulley 84, a winding power roller synchronous belt 91, a winding driving synchronous pulley 86, a power roller synchronous belt tension pulley 89, a center wheel synchronous belt 88, a center synchronous pulley 87, a winding synchronous belt tension pulley 85, and a power roller motor 94. The power mechanism 06 is provided with the power roller motor 94, the power roller driving synchronous pulley 83 is fixedly connected with the output shaft of the power roller motor 94, the center synchronous pulley 87 is movably installed on the center shaft turntable 72, the center synchronous pulley 87 can rotate relative to the center shaft turntable 72, the winding driving synchronous pulley 86 is movably installed on the winding power roller center shaft 98, the winding driving synchronous pulley 86 can rotate relative to the winding power roller center shaft 98, the winding driven synchronous pulley 84 is fixedly installed on the winding power roller 99, the winding driven synchronous pulley 84 rotates synchronously with the winding power roller 99, the winding driven synchronous pulley 84 is connected with the winding driving synchronous pulley 86 through the winding power roller synchronous belt 91, the center synchronous pulley 87 is connected with the three sets of winding driving synchronous pulleys 86 through the center wheel synchronous belt 87, the center synchronous pulley 87 is connected with the unwinding driven synchronous pulley 92 on the unwinding power roller 95 and the power roller driving synchronous pulley 83 through the power roller synchronous belt 93, when the power roller motor 94 rotates, the motor shaft drives the power roller driving synchronous pulley 83 to rotate clockwise, further drives the power roller synchronous belt 93 to rotate clockwise, further drives the unwinding power roller 95 to rotate clockwise, the center synchronous pulley 87 rotates counterclockwise to drive the center wheel synchronous belt 88 to rotate clockwise, further drives the winding driving synchronous pulley 86 to rotate clockwise to drive the winding power roller synchronous belt 91 to rotate clockwise, further drives the winding driven synchronous pulley 84 to rotate clockwise, further drives the winding driven synchronous pulley 84 to rotate clockwise to drive the winding power roller 99 to rotate clockwise.

[0044] The above is the structure principle of the cast film rewinding device, and the working principle of the cast film automatic rewinding device will be described below.

[0045] The cast film rewinding device is provided with a unwinding working position, a rewinding working position, a winding working position and a unloading working position, the film roll to be rewound is unwound in the unwinding working position, the winding power roller assembly and the top head assembly in the roller mechanism 08 and the top head mechanism 09 are paired into three groups, the paired power roller mechanism 08 and the top head mechanism 09 in the rewinding working position perform rewinding and sleeve work, the paired power roller mechanism 08 and the top head mechanism 09 in the winding working position perform winding work, the paired power roller mechanism 08 and the top head mechanism 09 in the unwinding working position perform unwinding work, and the paired power roller mechanism 08 and the top head mechanism 09 can be switched in the rewinding working position, the winding working position and the unloading working position in sequence when the turntable mechanism 05 rotates clockwise.

[0046] When the normal winding, the parent volume is in the unwinding work position for unwinding, unwinding power roller 95 in the fourth cylinder 102 under the action of close to the parent volume through the contact friction for the parent volume rotation provides rotating power, the child volume is in the winding work position for winding, winding power roller 99 close to the child volume through the contact friction for the child volume provides rotating power. The top head mechanism 09 of the change volume work position head 108 on the paper tube clamp installation to wait for the change volume, the rubber roller in the pressure roller mechanism 04 under the action of the casting film close to the winding work position winding power roller.

[0047] When the unwinding power roller 95 side of the counting wheel 105 and the counting induction switch 106 counting induction reaches the child volume diameter set value, the electrostatic bar 56 on the material changing mechanism 03 releases the static electricity to make the paper tube to be wound on the static electricity.

[0048] Further, the fourth cylinder 102 in the winding power roller 99 swing arm assembly of the winding work action piston rod push out makes the winding power roller 99 around the winding power roller center shaft 98 clockwise rotation will be close to the casting film on the paper tube to be wound.

[0049] Further, the second cylinder 33 on the material cutting mechanism 02 action piston rod push out, drive the second rack 38 downward movement driven cutting gear 36 counterclockwise rotation, in turn drive the cutting arm 35 counterclockwise rotation, in turn drive the cutting knife 31 counterclockwise rotation, cutting knife 31 contact to the casting film makes the casting film being wound cut off.

[0050] Further, the cutting film after the static adsorption effect of the paper tube on the top of the winding under the action of the electrostatic adsorption winding to the paper tube, the new paper tube in the friction of the winding power roller 99 under the action of counterclockwise rotation will be close to the casting film on the new paper tube winding.

[0051] Further, after the completion of the cutting action, the second cylinder 33 on the material cutting mechanism 02 action piston rod retraction, drive the second rack 38 downward movement driven cutting gear 36 clockwise rotation, in turn drive the cutting arm 35 clockwise rotation, in turn drive the cutting knife 31 clockwise rotation, cutting knife 31 reset.

[0052] Further, the pressure roller cylinder 68 action piston rod extension, the rubber roller 66 around the pressure roller arm fixed shaft 67 clockwise rotation, the rubber roller 66 away from the winding work position winding power roller 99.

[0053] Further, the fourth cylinder 102 on the power roller mechanism 07 above the winding work position action piston cylinder retraction, make the winding power roller 99 around the winding power roller center shaft 98 counterclockwise rotation away from the winding of the child volume.

[0054] Further, the rotary disc motor 73 drives the rotary disc mechanism 05 to rotate clockwise by 120°, the new paper tube is switched from the changing position to the winding position, the finished sub-roll is switched from the winding position to the unloading position, and the empty winding power roller 99 in the unloading position is switched to the changing position with the top head 108.

[0055] Further, the pressure roller cylinder 68 retracts the piston rod, the rubber roller 66 rotates counterclockwise around the pressure roller arm fixed shaft 67, and the rubber roller 66 tightly adheres the casting film to the winding power roller 99 in the winding position.

[0056] Further, the first top head cylinder 110 in the changing position retracts the piston rod to make the top head 108 retract on both sides to wait for installation of a new paper tube. The first top head cylinder 110 in the unloading position retracts the piston rod to make the top head 108 retract on both sides, and the finished sub-roll is separated from the top head under the action of gravity to complete the unloading.

[0057] Further, the cylinder 57 in the material changing mechanism 03 extends the piston cylinder to drive the adjusting side plate 54 to rotate counterclockwise to deliver the paper tube to the changing position.

[0058] Further, the first top head cylinder 110 in the changing position of the top head mechanism 09 extends the piston rod to drive the top head 108 to tighten the paper tube to complete the installation of the paper tube.

[0059] Further, the cylinder 57 in the material changing mechanism 03 retracts the piston cylinder to drive the adjusting side plate 54 to rotate clockwise, the material changing mechanism 03 returns to the original position, and the rewinding device returns to the normal winding state to wait for the next changing.

Claims

1. A novel automatic rewinding device for cast film, characterized in that, The unwinding mechanism (01), the material breaking mechanism (02), the material changing mechanism (03), the pressure roller mechanism (04), the rotating disc mechanism (05), the power mechanism (06), the power roller mechanism (07), the winding power roller mechanism (08) and the head mechanism (09) are composed; The rotating disc mechanism (05) is provided with a central shaft rotating disc (72), and a plurality of rotating disc radial supporting wheels (76) and rotating disc axial supporting wheels (77) are arranged around the central shaft rotating disc (72) to movably fix the central shaft rotating disc (72) on the rack and enable the central shaft rotating disc (72) to freely rotate; The winding power roller mechanism (08) is provided with three winding power roller swing arm assemblies, the winding power roller swing arm assemblies are equally distributed and installed on the central shaft rotating disc (72), a winding power roller (99) is movably installed at one end of a winding power roller swing arm (103) through a first bearing (104), the winding power roller swing arm (103) is movably connected with a fourth cylinder (102), the fourth cylinder (102) is fixedly installed on the central shaft rotating disc (72) through a first cylinder fixing shaft (101), one end of the winding power roller swing arm (103) is fixedly connected with a winding power roller central shaft (98) through an expansion sleeve (100), and the winding power roller central shaft (98) is movably installed on the central shaft rotating disc (72) through a second bearing (97); The head mechanism (09) is provided with three heads (108), a left head (108) is movably connected with a head sliding rod one (109) through a third bearing (127), the head (108) can rotate relative to the head sliding rod one (109), the head sliding rod one (109) is fixedly connected with a first head cylinder (110) piston rod, the first head cylinder (110) is fixedly connected with a head cylinder mounting seat (111), and the head cylinder mounting seat (111) is fixedly connected with the central shaft rotating disc (72) through a first intermediate piece (112); A right head (108) is movably connected with a head sliding rod two (113) through a third bearing (127), the head (108) can rotate relative to the head sliding rod two (113), one end of the head sliding rod two (113) is fixedly connected with a second head cylinder (125), the second head cylinder (125) is fixedly connected with an adjusting sliding block (124) through a cylinder fixing piece (123), the adjusting sliding block (124) is fixedly connected with a slide rail (122) slide rail seat, the slide rail (122) is fixedly connected with a head slide rail seat (120), and the head slide rail seat (120) is fixedly connected with the central shaft rotating disc (72).

2. A novel automatic rewinding device for cast film according to claim 1 characterized in that: The unwinding mechanism (01) is provided with an unwinding arm (14), the film roll to be rewound is fixed on the unwinding shaft (11), the unwinding arm (14) is installed on the unwinding arm (14), the sector gear (24) is fixedly connected to the turbine (19), the turbine (19) is fixedly connected to the unwinding arm (14), the worm gear (16) cooperates with the turbine (19), the handwheel (18) is fixedly installed on the worm gear (16), the first rack (25) cooperates with the sector gear (24), the first pressure roller (26) fits against the first rack (25) to limit the first rack (25), and one end of the first rack (25) is fixedly connected to the piston rod of the first cylinder (10).

3. A novel automatic rewinding device for cast film as claimed in claim 1, wherein: The material cutting mechanism (02) is provided with a material cutting knife (31), which is fixedly installed on the material cutting shaft (34). The material cutting shaft (34) is fixedly connected to the material cutting arm (35). The material cutting arm (35) is fixedly connected to the material cutting gear (36) through the knife arm fixing seat (30). A positioning gear (40) is provided below the material cutting gear, and two sets of second pressure rollers (42) are provided on one side. The second rack (38) cooperates with the material cutting gear (36), the positioning gear (40), and the second pressure rollers (42). The second rack (38) is fixedly connected to the piston rod of the second cylinder (33).

4. A novel automatic rewinding device for cast film as claimed in claim 1, wherein: The material changing mechanism (03) includes a drive shaft (49), a third cylinder (57), a conveying arm (53), an adjusting side plate (54), an electrostatic bar mounting base (55), a limiting side plate (50), a limiting side plate sliding sleeve (61), an upper baffle (63) of the paper tube seat, a lower baffle (62) of the paper tube seat, and an electrostatic bar (56). The drive shaft (49) is movably mounted on the frame via the fourth bearings (48) at both ends and the drive shaft mounting base (60). The drive shaft (49) has transmission arms (53) at both ends. One end of the transmission arm (53) is fixedly connected to the drive shaft (49), and the other end is movably connected to the third cylinder (57). The third cylinder (57) is movably mounted on the second cylinder mounting shaft (59). The limiting side plate (50) is movably connected to the drive shaft (49) via the fifth bearing (47). The time limit side plate (50) is movably connected to the adjustment guide rod (51) through the adjustment seat (52). The adjustment side plate (54) is fixedly installed on the limit side plate slide sleeve (61). The upper baffle (63) and lower baffle (62) of the paper tube seat are movably installed on the adjustment side plate (54). The material changing mechanism (03) is also provided with an electrostatic bar mounting seat (55). The electrostatic bar mounting seat (55) is fixedly connected to the transmission shaft (49). The electrostatic bar (56) is fixedly installed on the electrostatic bar mounting seat (55).

5. A novel automatic rewinding device for cast film as claimed in claim 1, wherein: The rubber roller (66) is provided with the sixth bearing (71) at both ends, the rubber roller (66) is movably connected with the rubber roller shaft (64) through the sixth bearing (71), the sixth bearing (71) is provided with the second limiting piece (70) at both sides to limit the sixth bearing (71) and fix the position of the rubber roller (66) relative to the rubber roller shaft (64), the rubber roller shaft (64) is fixedly installed at one end of the rubber roller arm (65), one end of the rubber roller arm (65) is movably connected with the rubber roller arm fixing shaft (67), the middle part of the rubber roller arm (65) is movably connected with the rubber roller cylinder (68), the rubber roller (66) can rotate flexibly around the shaft (64) and rotate around the rubber roller arm fixing shaft (67).

6. A novel automatic rewinding device for cast film as claimed in claim 1, wherein: The power roller mechanism (07) comprises a pay-off power roller (95) and a winding power roller mechanism (08), the pay-off power roller (95) is movably fixed on the rack through the bearing (96) at both ends, one end of the pay-off power roller is provided with a counting wheel (105), and the counting induction switch (106) is fixedly installed on the counting induction switch seat (107).

7. A novel automatic rewinding device for cast film as claimed in claim 1, wherein: The power mechanism (06) is provided with a power roller motor (94), the power roller driving synchronous pulley (83) is fixedly connected with the output shaft of the power roller motor (94), the center synchronous pulley (87) is movably installed on the center shaft rotating disc (72), the center synchronous pulley (87) can rotate relative to the center shaft rotating disc (72), the winding driving synchronous pulley (86) is movably installed on the winding power roller center shaft (98), the winding driving synchronous pulley (86) can rotate relative to the winding power roller center shaft (98), the winding driven synchronous pulley (84) is fixedly installed on the winding power roller (99), the winding driven synchronous pulley (84) rotates synchronously with the winding power roller (99), the winding driven synchronous pulley (84) is connected with the winding driving synchronous pulley (86) through the winding power roller synchronous belt (91), the center synchronous pulley (87) is connected with the three groups of winding driving synchronous pulleys (86) through the center wheel synchronous belt (88), the center synchronous pulley (87) is connected with the pay-off driven synchronous pulley (92) on the pay-off power roller (95) and the power roller driving synchronous pulley (83) through the power roller synchronous belt (93), when the power roller motor (94) rotates, the motor shaft drives the power roller driving synchronous pulley (83) to rotate clockwise, further drives the power roller synchronous belt (93) to rotate clockwise, further drives the pay-off power roller (95) to rotate clockwise, the center synchronous pulley (87) rotates counterclockwise to drive the center wheel synchronous belt (88) to rotate clockwise, further drives the winding driving synchronous pulley (86) to rotate clockwise to drive the winding power roller synchronous belt (91) to rotate clockwise, further drives the winding driven synchronous pulley (84) to rotate clockwise, further drives the winding driven synchronous pulley (84) to rotate clockwise to drive the winding power roller (99) to rotate clockwise.

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