Seven-roller type drawing machine

Abstract

The utility model relates to the technical field of drawing machines, and discloses a seven-roller type drawing machine which comprises a hollow machine body and a plurality of rotatable drawing rollers installed on one side of the hollow machine body, an annular groove is formed in the side, close to the drawing rollers, of the hollow machine body, and a fixing mechanism is connected into the annular groove in a sliding mode. One side of the fixing assembly is detachably connected with a traction assembly used for pulling the fixing assembly to move, the fixing assembly comprises a movable transverse rod, the movable transverse rod is slidably connected into the annular groove, the top of the movable transverse rod is slidably connected with a fixing plate, and the bottom of the fixing plate is fixedly connected with two first protruding blocks. Through traction of the traction assembly, the fixing assembly can move along the annular groove, the packing belt is pulled to the position of the winding device, the packing belt can move around the multiple traction rollers, meanwhile, uniform traction force can be given to the packing belt, and the stretching effect of the packing belt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drafting machines, in particular to a seven-roller drafting machine. Background Art

[0002] The strapping tape stretching machine is a mechanical equipment, which is mainly used to wind the strapping tape around objects according to certain rules. The strapping tape traction machine is usually composed of a frame, a control system, a drive system and a strapping tape winding system. The strapping tape winding system is the core part to realize the strapping function, including an unwinding device, a guide roller device, a strapping tape tensioning device and a control system.

[0003] Before the strapping tape stretching work begins, there is a certain distance between one end of the strapping tape head and the strapping tape winding device. Usually, it is necessary to manually pull one end of the strapping tape toward the winding device. However, when the strapping tape is manually pulled toward the winding device, the manual pulling force is not uniform enough, resulting in uneven force during the strapping tape stretching process and poor stretching effect.

[0004] Therefore, it is necessary to provide a seven-roller drawing machine to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a seven-roller stretching machine to solve the problem that there is a certain distance between one end of the head of the strapping tape and the strapping tape winding device in the prior art proposed in the above background technology, and it is usually necessary to manually pull one end of the strapping tape to move toward the winding device. However, when the strapping tape is manually pulled toward the winding device, the manual pulling force is not uniform enough, which causes uneven force during the stretching process of the strapping tape and poor stretching effect.

[0006] Based on the above ideas, the utility model provides the following technical solutions: comprising a hollow body, a plurality of rotatable traction rollers installed on one side of the hollow body, an annular groove is provided on one side of the hollow body close to the traction roller, a fixing component is slidably connected in the annular groove, and a traction component for traction movement of the fixing component is detachably connected to one side of the fixing component;

[0007] The fixing assembly includes a movable cross bar, which is slidably connected in an annular groove, a fixed plate is slidably connected to the top of the movable cross bar, and two first protrusions are fixedly connected to the bottom of the fixed plate, a limiting slot is provided on one side of the first protrusion, and second protrusions are slidably connected to both sides of the movable cross bar, the second protrusion is fixed to the movable cross bar by a spring, and two sliding grooves are provided on the top of the movable cross bar, and the first protrusion is slidably connected to the movable cross bar through the sliding grooves.

[0008] As a further solution of the utility model: the traction assembly includes a rotating motor, which is fixedly connected to one side of the hollow body, the output end of the rotating motor is fixedly connected to a round rod, the outer side of the round rod is fixedly connected to a winding drum, the outer side of the winding drum is wrapped with a pull rope, and one end of the pull rope is fixedly connected to one side of the moving cross bar.

[0009] As a further solution of the utility model: a driving motor is fixedly connected to the side of the hollow body away from the traction roller, a rotating rod is fixedly connected to the output end of the driving motor, a transmission gear is fixedly connected to the outer side of the rotating rod, and a gear set is meshedly connected to the outer side of the transmission gear;

[0010] The gear set includes a plurality of hollow tubes, the hollow tubes are fixedly connected to the traction roller, and the hollow tubes are communicated with the traction roller, and the outer sides of the hollow tubes are fixedly connected with gears, and two adjacent gears are meshed and connected;

[0011] The gear set is arranged inside the hollow body.

[0012] As a further solution of the utility model: a liquid inlet component is fixedly connected to the top of the hollow body, and the liquid inlet component is connected to a plurality of traction rollers.

[0013] As a further solution of the utility model: a protective cover plate is hinged on the top of the hollow body, and the protective cover plate is arranged on the outside of the traction roller.

[0014] As a further solution of the utility model: a rotatable roller is arranged below one of the traction rollers, an electric cylinder is arranged at the bottom of the rotatable roller, the output end of the electric cylinder is fixedly connected to the rotatable roller, and the electric cylinder is fixedly connected to the side of the hollow body close to the traction roller.

[0015] As a further solution of the utility model: a plurality of positioning protrusions are equidistantly installed on the inner upper surface of the movable cross bar.

[0016] Compared with the prior art, the beneficial effect of the utility model is that, through the traction of the traction component, the fixed component can move along the annular groove, and the strapping belt can be pulled to the position of the winding device, which can not only move the strapping belt around multiple traction rollers, but also give the strapping belt uniform traction force, thereby improving the stretching effect of the strapping belt.

[0017] Compared with the prior art, the beneficial effect of the utility model is that by pulling the second protrusions located on both sides of the movable cross bar, the second protrusions located in the limiting slot are pulled out to quickly release the limiting of multiple strapping belts under the action of overcoming the spring and moving in the direction away from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a main structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the gear set of the utility model;

[0021] Figure 3 This is a schematic diagram of the traction roller structure of the utility model;

[0022] Figure 4 This utility model Figure 3 A-section structure enlarged view.

[0023] In the figure: 1. hollow body; 2. movable cross bar; 3. fixed plate; 4. first protrusion; 5. limit slot; 6. second protrusion; 7. spring; 8. positioning protrusion; 9. slide groove; 10. rotating motor; 11. rotating rod; 12. winding drum; 13. pull rope; 14. annular groove; 15. driving motor; 16. gear set; 17. traction roller; 18. liquid inlet assembly; 19. protective cover plate; 20. electric cylinder; 21. rotatable roller. DETAILED DESCRIPTION

[0024] like Figure 3 As shown, a rotatable roller 21 is arranged under one of the traction rollers 17, and an electric cylinder 20 is arranged at the bottom of the rotatable roller 21. The output end of the electric cylinder 20 is fixedly connected to the rotatable roller 21, and the electric cylinder 20 is fixedly connected to the side of the hollow body 1 close to the traction roller 17.

[0025] During the specific operation, one end of the plurality of strapping belts is passed between the traction roller 17 and the rotatable roller 21, and the rotatable roller 21 is driven by the electric cylinder 20 to move toward the traction roller 17, thereby squeezing and stretching the strapping belts.

[0026] like Figure 2 As shown, a driving motor 15 is fixedly connected to the side of the hollow body 1 away from the traction roller 17, a rotating rod is fixedly connected to the output end of the driving motor 15, a transmission gear is fixedly connected to the outer side of the rotating rod, and a gear set 16 is meshingly connected to the outer side of the transmission gear; the gear set 16 includes a plurality of hollow tubes, the hollow tubes are fixedly connected to the traction roller 17, and the hollow tubes are communicated with the traction roller 17, the outer sides of the hollow tubes are fixedly connected to gears, and two adjacent gears are meshingly connected; the gear set 16 is arranged inside the hollow body 1.

[0027] During specific operation, the driving motor 15 is used to drive the rotating rod to rotate, the rotating rod rotation drives the transmission gear rotation, the transmission gear rotation drives the gear set 16 to rotate, the rotating rod and the hollow tube both penetrate the hollow body 1 and are rotationally connected to the hollow body 1, one of the gears in the gear set 16 is meshed with the transmission gear, so that the transmission gear rotation drives the gear rotation, the gear rotation drives the hollow tube rotation, and the hollow tube rotation drives the traction roller 17 connected thereto to rotate, so as to transmit and stretch the packaging tape.

[0028] like Figures 1 to 4 As shown, a seven-roller drawing machine comprises a hollow body 1, a plurality of rotatable traction rollers 17 installed on one side of the hollow body 1, an annular groove 14 is provided on one side of the hollow body 1 close to the traction roller 17, a fixed component is slidably connected in the annular groove 14, and a traction component for pulling the fixed component to move is detachably connected on one side of the fixed component; the fixed component comprises a moving cross bar 2, the moving cross bar 2 is slidably connected in the annular groove 14, a fixed plate 3 is slidably connected to the top of the moving cross bar 2, two first protrusions 4 are fixedly connected to the bottom of the fixed plate 3, a limiting groove 5 is provided on one side of the first protrusion 4, second protrusions 6 are slidably connected to both sides of the moving cross bar 2, the second protrusion 6 is fixed to the moving cross bar 2 by a spring 7, two slide grooves 9 are provided on the top of the moving cross bar 2, and the first protrusion 4 is slidably connected to the moving cross bar 2 by the slide groove 9.

[0029] During the specific operation, the cross-sectional shape of the movable cross bar 2 is set to be L-shaped. Since a plurality of positioning protrusions 8 are equidistantly installed on the inner upper surface of the movable cross bar 2, one end of a plurality of packing belts is extended into the positioning protrusion 8 between the fixed plate 3 and the movable cross bar 2. By pressing the fixed plate 3 downward, the fixed plate 3 moves toward the direction of the movable cross bar 2. When the fixed plate 3 moves, it will drive the first protrusion 4 to move downward until the first protrusion 4 passes through the slide groove 9. Since one side of the first protrusion 4 and the second protrusion 6 is set to an arc surface, the first protrusion 4 squeezes the second protrusion 6 The force is applied to push the second protrusion 6 to overcome the force of the spring 7 and move in the direction away from the movable cross bar 2. When the second protrusion 6 is aligned with the limiting slot 5, the second protrusion 6 moves in the direction of the limiting slot 5 under the force of the spring 7, thereby fixing the plurality of strapping belts. The fixing component is pulled along the annular groove 14 by the pulling of the pulling component, and the strapping belt is pulled to the position of the winding device, which can not only move the strapping belt around the plurality of pulling rollers 17, but also give the strapping belt a uniform pulling force, thereby improving the stretching effect of the strapping belt.

[0030] After one end of the head of the strapping tape is pulled into place, the second protrusions 6 located on both sides of the movable cross bar 2 can be pulled to move away from each other under the force of the spring 7, so that the second protrusions 6 located in the limiting slot 5 are pulled out, and the limiting of multiple strapping tapes is quickly released.

[0031] like Figure 3 As shown, the traction assembly includes a rotating motor 10, which is fixedly connected to one side of the hollow body 1, and the output end of the rotating motor 10 is fixedly connected to a round rod 11, and a winding drum 12 is fixedly connected to the outside of the round rod 11. A pull rope 13 is wound around the outside of the winding drum 12, and one end of the pull rope 13 is fixedly connected to one side of the moving cross bar 2.

[0032] During specific operation, the round rod 11 is driven to rotate by the rotating motor 10, and the rotation of the round rod 11 drives the winding drum 12 to rotate. The rotation of the winding drum 12 can pull the pull rope 13 to be wound around the winding drum 12, and the movement of the pull rope 13 drives the fixed component to move, and the fixed component drives the packing belt to move until the packing belt is moved to the winding position.

[0033] like Figure 1 As shown, a liquid inlet component 18 is fixedly connected to the top of the hollow body 1, and the liquid inlet component 18 is connected to multiple traction rollers 17. During specific operation, the traction rollers 17 and the liquid inlet component 18 are connected to each other, so that the cooling solution enters the traction rollers 17 from the liquid inlet component 18 to cool the surface of the strapping tape.

[0034] like Figure 1 As shown, a protective cover plate 19 is hinged on the top of the hollow body 1 , and the protective cover plate 19 is arranged on the outside of the traction roller 17 . During specific operation, the protective cover plate 19 is used to protect the multiple traction rollers 17 .

Claims

1. A seven-roller drafting machine, comprising a hollow body (1), a plurality of rotatable traction rollers (17) mounted on one side of the hollow body (1), characterized in that: The hollow body (1) is provided with an annular groove (14) on one side close to the traction roller (17), a fixing component is slidably connected in the annular groove (14), and a traction component for traction movement of the fixing component is detachably connected to one side of the fixing component; The fixing assembly comprises a movable cross bar (2), the movable cross bar (2) is slidably connected in an annular groove (14), the top of the movable cross bar (2) is slidably connected with a fixing plate (3), the bottom of the fixing plate (3) is fixedly connected with two first protrusions (4), one side of the first protrusion (4) is provided with a limiting slot (5), both sides of the movable cross bar (2) are slidably connected with second protrusions (6), the second protrusion (6) and the movable cross bar (2) are fixed by a spring (7), the top of the movable cross bar (2) is provided with two sliding grooves (9), and the first protrusion (4) and the movable cross bar (2) are slidably connected via the sliding grooves (9).

2. A seven-roller drawing machine according to claim 1, characterized in that: The traction assembly comprises a rotating motor (10), the rotating motor (10) is fixedly connected to one side of the hollow body (1), the output end of the rotating motor (10) is fixedly connected to a round rod (11), the outer side of the round rod (11) is fixedly connected to a winding drum (12), the outer side of the winding drum (12) is wound with a pull rope (13), and one end of the pull rope (13) is fixedly connected to one side of the moving cross bar (2).

3. A seven-roller drawing machine according to claim 1, characterized in that: A driving motor (15) is fixedly connected to the side of the hollow body (1) away from the traction roller (17); a rotating rod is fixedly connected to the output end of the driving motor (15); a transmission gear is fixedly connected to the outer side of the rotating rod; and a gear set (16) is meshedly connected to the outer side of the transmission gear; The gear set (16) comprises a plurality of hollow tubes, the hollow tubes are fixedly connected to the traction roller (17), and the hollow tubes are in communication with the traction roller (17), and the outer sides of the hollow tubes are fixedly connected with gears, and two adjacent gears are meshedly connected; The gear set (16) is arranged inside the hollow body (1).

4. A seven-roller drawing machine according to claim 1, characterized in that: A liquid inlet assembly (18) is fixedly connected to the top of the hollow body (1), and the liquid inlet assembly (18) is connected to a plurality of traction rollers (17).

5. The seven-roller drawing machine according to claim 1, characterized in that: A protective cover plate (19) is hinged on the top of the hollow body (1), and the protective cover plate (19) is arranged on the outside of the traction roller (17).

6. A seven-roller drafting machine according to claim 1, characterized in that: A rotatable roller (21) is arranged below one of the traction rollers (17), an electric cylinder (20) is arranged at the bottom of the rotatable roller (21), an output end of the electric cylinder (20) is fixedly connected to the rotatable roller (21), and the electric cylinder (20) is fixedly connected to a side of the hollow body (1) close to the traction roller (17).

7. A seven-roller drafting machine according to claim 1, characterized in that: The inner upper surface of the movable cross bar (2) is provided with a plurality of positioning protrusions (8) at equal intervals.

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