Automatic rewinding device for thin film stay wire

Abstract

The utility model discloses a film stay wire automatic rewinding device which comprises a machine frame, a control panel, a wire guide wheel set, a tension adjusting mechanism and a rewinding mechanism, and the control panel, the wire guide wheel set, the tension adjusting mechanism and the rewinding mechanism are installed on the machine frame. The tension detection mechanism comprises a detection wheel and line pressing wheels symmetrically arranged on the two sides of the detection wheel, the line pressing wheels are lower than the detection wheel, a base is arranged below the detection wheel, a downwards-concave sliding groove is machined in the base, a pressure sensor is installed at the bottom in the sliding groove, and the pressure sensor is communicated with the control panel through a wire. A sliding block is installed in the sliding groove above the pressure sensor in a sliding mode, a support is arranged on the sliding block, and the detection wheel is installed on the support in a rotating mode. The device is reasonable in structure, can uniformize the internal tension of the stay wire, can improve the rewinding quality, and has remarkable economic value and social value.

Description

TECHNICAL FIELD

[0001] The utility model relates to a thin film pull -out wire automatic rewinding device. BACKGROUND

[0002] Most of the outer packaging surfaces of various commodities need to be packaged by plastic film, and it is difficult to tear the plastic film when opening the outer packaging because the plastic film has certain toughness, strong surface tension and strong adsorption, especially for the commodities such as cigarettes and cards, the plastic film packaged thereon is thin and seamless, and it is very inconvenient to tear it. In view of this situation, a film pull -out wire is designed on the surface of the plastic packaging film for tearing the plastic packaging film.

[0003] The film pull -out wire is also made of plastic film, and a wide plastic film needs to be slitted into a plurality of narrow belt-shaped pull -out wires in the production process of the pull -out wire, that is, the pull -out wire can be slitted, and when rewinding the pull -out wire, the existing pull -out wire rewinding device has the problem of uneven internal tension of the pull -out wire roll after rewinding because of the large number of pull -out wires and complex control. When the pull -out wire roll with uneven tension is used in a high -speed plastic film packaging machine, such as the outer packaging of cigarettes, it will cause uneven tension on the surface of the packaging film, and further cause wrinkles and other problems, affecting the product packaging quality and appearance. Secondly, the pull -out wire with uneven tension is prone to breakage when used in a high -speed packaging machine, which often causes production interruption, packaging material waste and reduced production efficiency. Therefore, it is an objective need to develop a thin film pull -out wire automatic rewinding device with reasonable structure, uniform internal tension of the pull -out wire and improved rewinding quality. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a thin film pull -out wire automatic rewinding device with reasonable structure, uniform internal tension of the pull -out wire and improved rewinding quality.

[0005] The utility model aims at providing a thin film pull -out wire automatic rewinding device with reasonable structure, uniform internal tension of the pull -out wire and improved rewinding quality.

[0006] Further, the rewinding mechanism comprises a support block and a translation block slidingly installed on the support block, the support block is installed on the rack, a winding roller is installed on the translation block through a shelf, one end of the winding roller is drivingly connected with a servo motor, a cylinder is installed on one side of the support block, and the piston rod end of the cylinder is fixedly connected with the translation block.

[0007] Further, the tension adjusting mechanism comprises an adjusting wheel and a concave frame, a waist-shaped hole is processed on the rack, the length direction of the waist-shaped hole is parallel to the vertical direction of the rack, a vertical moving block is arranged on the shaft of the adjusting wheel after penetrating through the waist-shaped hole, the concave frame is fixed on the rack, a slide rail in sliding connection with the vertical moving block is vertically processed on the concave frame, a screw rod is threadedly penetrated and connected on the vertical moving block, one end of the screw rod is rotationally connected with the concave frame, and the other end is drivingly connected with a driving mechanism installed on the concave frame.

[0008] Further, the cross section shape of the slide rail is dovetail type.

[0009] Further, the rewinding mechanism is provided with a compaction mechanism above, the compaction mechanism comprises a rotating shaft and a rotating arm rotationally connected on the rotating shaft, one end of the rotating shaft is fixed on the rack, and the end of the rotating arm is provided with a compaction wheel.

[0010] Further, a slide is processed on the rotating arm along the length direction of the rotating arm, and a counterweight is slidingly installed on the slide.

[0011] The utility model discloses a control panel controls the operation of the rewinding device, and the tension adjusting mechanism adjusts the tightness degree of the pull wire, thereby realizing the tension adjustment of the pull wire, and the rewinding mechanism winds the pull wire, and the pull wire is wound up, when the rewinding device operates, the tension detecting mechanism monitors the tension in the pull wire in real time, the two line pressing wheels are located at the two sides of the detecting wheel, can guide the pull wire, and make the pull wire can always press on the detecting wheel, simultaneously, a downward pressure is applied to the detecting wheel, the pressure is transmitted to the sliding block through the support, and the sliding block can move up and down in the sliding groove, when being pressed, the pressure is transmitted to the pressure sensor, the pressure sensor detects the pressure, and the detection data are transmitted to the control panel, and the operator can adjust the operation of the tension adjusting mechanism and the conveying speed and other parameters through the control panel, and through practice, when the tension in the pull wire is too large, the pressure received by the pressure sensor is large, and vice versa, through the accurate control of the tension of the pull wire, the tension in the pull wire is uniform, thereby improving the rewinding quality and appearance quality of the pull wire, and solving the problems of wire breakage and looseness during the rewinding of the pull wire. ACCURATE DRAWING

[0012] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0013] Fig. 2 It is the structure schematic view of the tension adjusting mechanism 4 in the utility model;

[0014] Fig. 3 It is the structure schematic view of the rewinding mechanism 5 in the utility model;

[0015] In the figure: 1 - frame, 2 - control panel, 3 - wire wheel group, 4 - tension adjusting mechanism, 5 - rewinding mechanism, 6 - detection wheel, 7 - wire pressing wheel, 8 - base, 9 - sliding groove, 10 - pressure sensor, 11 - sliding block, 12 - support, 13 - supporting block, 14 - translation block, 15 - winding roller, 16 - servo motor, 17 - air cylinder, 18 - adjusting wheel, 19 - concave frame, 20 - waist-shaped hole, 21 - screw rod, 22 - rotating shaft, 23 - rotating arm, 24 - compacting wheel, 25 - counterweight. DETAILED DESCRIPTION

[0016] The utility model will be further explained in connection with the drawings, but in any way to the utility model is limited, based on the utility model is made, any change or improvement, all belong to the protection scope of the utility model.

[0017] As Figs. 1-3 Indicated, the utility model includes frame 1 and installs control panel 2, wire wheel group 3, tension adjusting mechanism 4 and rewinding mechanism 5 on frame 1, and the control relationship between control panel 2 and wire wheel group 3 is the structure used in prior art, control panel 2 is used to receive the data that pressure sensor 10 exports, wire wheel group 3 is used to guide and transport the stay wire, tension adjusting mechanism 4 is used to adjust the tightness of wire pressing, and then realizes the adjustment of the tension in stay wire, rewinding mechanism 5 is used for the winding of stay wire, and tension detection mechanism is arranged on frame 1 between tension adjusting mechanism 4 and rewinding mechanism 5, and tension detection mechanism includes detection wheel 6 and wire pressing wheel 7 symmetrically arranged on both sides of detection wheel 6, wire pressing wheel 7 is installed on frame 1, and the height of wire pressing wheel 7 is lower than the height of detection wheel 6, base 8 is arranged on frame 1 below detection wheel 6, and the lower concave sliding groove 9 is processed on base 8, pressure sensor 10 is installed in the bottom of sliding groove 9, pressure sensor 10 is prior art, and is used to detect the pressure applied on pressure sensor 10, in actual detection process, the gravity of detection wheel 6, sliding block 11 and support 12 can be measured in advance, and the pressure applied on detection wheel 6 by stay wire is the gravity deducted when pressure measurement, the utility model indirectly realizes the control of the tension in stay wire by controlling the pressure, pressure sensor 10 is communicated with control panel 2 through wire, sliding block 11 is slidably installed in the sliding groove 9 above pressure sensor 10, support 12 is arranged on sliding block 11, detection wheel 6 is rotatably installed on support 12,

[0018] The utility model discloses a tension adjusting mechanism 4 carries out the adjustment to the tightness degree of the pull wire, and then realizes the tension adjustment of the pull wire, and the rewinding mechanism 5 winds the pull wire, and the pull wire is wound up, when the rewinding device is operating, the tension detection mechanism carries out the real -time monitoring to the tension in the pull wire, two line pressing wheels 7 are located at the both sides of the detection wheel 6 respectively, can guide the pull wire, and make the pull wire can always press on the detection wheel 6, simultaneously, a downward pressure is exerted to the detection wheel 6, and this pressure will be passed to the sliding block 11 through support 12, and the sliding block 11 can move up and down in the sliding slot 9, when being pressed, this pressure is passed to the pressure sensor 10, and the pressure sensor 10 can detect this pressure and transmit the detection data to the control panel 2, and the operator can adjust the operation of the tension adjusting mechanism 4 and the conveying speed parameter through the control panel 2, and through practice, when the tension in the pull wire is too large, the pressure that the pressure sensor 10 receives is large, and vice versa, through the accurate control of the pull wire tension, the uniformity of the pull wire internal tension is realized, and then the rewinding quality and appearance quality of the pull wire are improved, and the problems such as broken wire, slack, uneven tension during the rewinding of the pull wire are solved.

[0019] The rewinding mechanism 5 includes support block 13 and slidingly installed on the support block 13 translation block 14, and the support block 13 is installed on the rack 1, and the translation block 14 is provided with winding roller 15 through the frame, one end of the winding roller 15 is transmissionally connected with servo motor 16, one side of the support block 13 is provided with cylinder 17, the piston rod end of the cylinder 17 is fixedly connected with the translation block 14, the servo motor 16 can drive the winding roller 15 to rotate, and then the pull wire is wound, and in the process of winding, according to the winding speed of the pull wire and the width of the pull wire, the translation block 14 is driven to move left and right at a certain speed through the cylinder 17, and then the pull wire is evenly laid on the winding roller 15, prevents the pull wire from being wound on one side of the winding roller 15, improves the winding quality of the pull wire, and improves the winding efficiency.

[0020] The tension adjusting mechanism 4 comprises an adjusting wheel 18 and a concave frame 19, a waist-shaped hole 20 is formed on the frame 1, the length direction of the waist-shaped hole 20 is parallel to the vertical direction of the frame 1, the wheel shaft of the adjusting wheel 18 is provided with a vertical moving block 26 after penetrating through the waist-shaped hole 20, the concave frame 19 is fixed on the frame 1, a slide rail in sliding connection with the vertical moving block 26 is vertically formed on the concave frame 19, a screw rod 21 is threadedly connected on the vertical moving block 26, one end of the screw rod 21 is in rotational connection with the concave frame 19, and the other end is in transmission connection with a driving mechanism installed on the concave frame 19. The operation principle of the tension adjusting mechanism 4 is that when the tension in the pull line is too large, the driving mechanism is started, the driving mechanism drives the screw rod 21 to rotate forward, the screw rod 21 drives the vertical moving block 26 to move upward when rotating forward, the adjusting wheel 18 drives the pull line to move upward, and then the pull line is loosened, so that the purpose of reducing the tension in the pull line is achieved, and vice versa, the driving mechanism drives the screw rod 21 to rotate reversely, the vertical moving block 26 moves downward, the adjusting wheel 18 drives the pull line to move downward, and the pull line is tightened, so that the purpose of increasing the tension in the pull line is achieved. The whole structure is simple and convenient to use.

[0021] Preferably, the cross-sectional shape of the slide rail is dovetail type, and in actual processing, it can also be processed into T-shaped or other shapes, which can not only make the vertical moving block 26 smoothly slide in the slide rail, but also play a positioning role on the vertical moving block 26, as long as it can prevent the vertical moving block 26 from coming out of the slide rail.

[0022] The upper part of the rewinding mechanism 5 is provided with a compacting mechanism, the compacting mechanism comprises a rotating shaft 22 and a rotating arm 23 in rotational connection with the rotating shaft 22, one end of the rotating shaft 22 is fixed on the frame 1, and the end of the rotating arm 23 is provided with a compacting wheel 24. The compacting mechanism can compact the pull line wound on the winding roller 15, prevent the pull line from loosening or moving after being wound, and then ensure the winding quality of the pull line. When the compacting mechanism is used, the rotating arm 23 can freely rotate along the rotating shaft 22, and the compacting wheel 24 is pressed on the winding roller 15 under the action of the gravity of the rotating arm 23, so as to compact the wound pull line, regulate the pull line, prevent the pull line from loosening or buckling, and ensure the winding quality of the pull line.

[0023] A sliding channel is formed on the rotating arm 23 along the length direction thereof, and a counterweight 25 is slidingly installed on the sliding channel. In use, the counterweight 25 can slide on the rotating arm 23 along the sliding channel, the position of the counterweight 25 on the rotating arm 23 is adjusted, and then the pressure of the compacting wheel 24 on the winding roller 15 is adjusted, so as to adapt to the needs of pull lines of various materials for compacting force.

Claims

1. A thin film pull wire automatic rewinding device, comprising a rack (1) and a control panel (2) installed on the rack (1), a guide wheel set (3), a tension adjusting mechanism (4) and a rewinding mechanism (5), characterized in that The tension adjusting mechanism (4) and the rewinding mechanism (5) are provided with a tension detection mechanism on the frame (1), the tension detection mechanism comprises a detection wheel (6) and line pressing wheels (7) symmetrically arranged on both sides of the detection wheel (6), the line pressing wheels (7) are installed on the frame (1), the height of the line pressing wheels (7) is lower than the height of the detection wheel (6), a base (8) is arranged on the frame (1) below the detection wheel (6), a recessed sliding groove (9) is processed on the base (8), a pressure sensor (10) is installed on the bottom in the sliding groove (9), the pressure sensor (10) is in communication with the control panel (2) through wires, a sliding block (11) is slidingly installed in the sliding groove (9) above the pressure sensor (10), a support (12) is arranged on the sliding block (11), and the detection wheel (6) is rotatably installed on the support (12).

2. The automatic rewinding device for film pull-tab according to claim 1, characterized in that The rewinding mechanism (5) comprises a supporting block (13) and a translation block (14) slidingly installed on the supporting block (13), the supporting block (13) is installed on the frame (1), the translation block (14) is provided with a winding roller (15) installed through a shelf, one end of the winding roller (15) is drivingly connected with a servo motor (16), and the supporting block (13) is provided with a pneumatic cylinder (17) on one side, and the piston rod end of the pneumatic cylinder (17) is fixedly connected with the translation block (14).

3. The automatic rewinding device according to claim 1, wherein The tension adjusting mechanism (4) comprises an adjusting wheel (18) and a concave frame (19), a waist-shaped hole (20) is processed on the frame (1), the length direction of the waist-shaped hole (20) is parallel to the vertical direction of the frame (1), the shaft of the adjusting wheel (18) is provided with a vertical moving block (26) after penetrating through the waist-shaped hole (20), the concave frame (19) is fixed on the frame (1), vertical sliding rails slidably connected with the vertical moving block (26) are processed on the concave frame (19), a screw rod (21) is connected with the vertical moving block (26) through threads, one end of the screw rod (21) is rotatably connected with the concave frame (19), and the other end is drivingly connected with a driving mechanism installed on the concave frame (19).

4. The automatic rewinding device according to claim 3, wherein The cross section shape of the sliding rail is dovetail type.

5. The automatic rewinding device according to claim 1, wherein The rewinding mechanism (5) is provided with a compaction mechanism above, the compaction mechanism comprises a rotating shaft (22) and a rotating arm (23) rotatably connected with the rotating shaft (22), one end of the rotating shaft (22) is fixed on the frame (1), and the end of the rotating arm (23) is provided with a compaction wheel (24).

6. The automatic rewinding device for thin film pull wire according to claim 5, characterized in that A sliding channel is processed on the rotating arm (23) along the length direction, and a counterweight (25) is slidingly installed on the sliding channel.

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