Drawstring assembly and packing machine

Abstract

The utility model provides a drawstring assembly which comprises a drawstring wheel, a toothed plate and a baffle, the drawstring wheel is sleeved on a transmission shaft of a transmission assembly, the toothed plate is located below the drawstring wheel, and overlapped packing belts are placed between the drawstring wheel and the toothed plate. Inclined sawteeth are arranged on the belt pulling wheel and the toothed plate, the inclination direction of the sawteeth of the belt pulling wheel is opposite to that of the sawteeth of the toothed plate, when the packing belt is tightened, the belt pulling wheel rotates, the sawteeth are clamped into the packing belt, after packing is completed, the belt pulling wheel rotates reversely, the sawteeth are separated from the packing belt, and the packing belt can be taken down conveniently. By arranging the sawteeth with the opposite inclination angles on the belt pulling wheel and the toothed plate, the efficiency of the packing belt moving between the belt pulling wheel and the toothed plate is effectively improved, the packing belt is not prone to slipping or dislocation, and packing is convenient, fast and attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging tools, in particular to a drawstring assembly and a packaging machine. Background Art

[0002] A baler is also called a strapping machine or a tying machine. A portable baler is highly efficient and easy to carry. It is widely used in all walks of life for the packaging and bundling of large and small goods. When packing goods, the goods are usually placed in a packing box, which is then tied with strapping tape. A baler is used to tighten the strapping tape and cut off the excess part, which is then welded at the cut point.

[0003] However, when using a portable baler, the baling belt may slip or the overlapping position may not be aligned due to the operator's movements and the slippery baling belt itself, resulting in unsatisfactory baling results. Utility Model Content

[0004] In order to solve the above problems and other problems, the utility model is implemented through the following technical solutions: a pull-belt assembly, characterized in that it includes: a pull-belt wheel; a tooth plate, wherein the tooth plate is located below the pull-belt wheel, and a packing tape is placed between the tooth plate and the pull-belt wheel; the pull-belt wheel and the tooth plate are provided with inclined serrations, and the serrations of the pull-belt wheel and the serrations of the tooth plate are inclined in opposite directions.

[0005] In one embodiment, the belt pulling assembly further includes a baffle plate, and the baffle plate is installed on one side of the belt pulling wheel.

[0006] The utility model also provides a baling machine, comprising any one of the above-mentioned drawstring components.

[0007] In one embodiment, it further includes a handle and a transmission assembly, and the handle is connected to the drawstring assembly through the transmission assembly.

[0008] In one embodiment, the transmission assembly includes an articulated shaft, a first mounting block, a second mounting block and a torsion spring, the two ends of the articulated shaft pass through the first mounting block and the second mounting block respectively, the torsion spring is mounted on the articulated shaft, one end of the torsion spring is connected to the first mounting block, and the other end is connected to the second mounting block.

[0009] In one embodiment, the hinge shaft passes through the second mounting block and is connected to the baffle.

[0010] In one embodiment, the transmission assembly includes a motor, a gearbox, a worm and a worm wheel, the output end of the motor is connected to the gearbox, one end of the worm is connected to the gearbox, and the other end is connected to the worm.

[0011] In one embodiment, the worm gear is coaxial with the belt pulley.

[0012] Due to the application of the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model effectively increases the efficiency of the strapping belt when it moves between the strapping wheel and the tooth plate by arranging saw teeth with opposite inclination angles on the strapping wheel and the tooth plate, the strapping belt is not easy to slip and dislocate, and the strapping is convenient and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shown is a schematic diagram of a baler of the utility model;

[0014] Figure 2 Shown is a schematic diagram of the tensioning device of the utility model;

[0015] Figure 3 Shown is a schematic diagram of the transmission assembly of the utility model;

[0016] Figure 4 Display as Figure 3 A partial enlarged view of point A in the middle.

[0017] 1- tensioning device; 11- handle; 12- transmission assembly; 121- hinged shaft; 122- first mounting block; 123- second mounting block; 124- torsion spring; 125- motor; 126- gearbox; 127- worm; 128- worm wheel; 13- belt pulling assembly; 131- belt pulling wheel; 132- tooth plate; 133- baffle; 2- welding device. DETAILED DESCRIPTION

[0018] See also Figures 1 to 4 The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those skilled in the art, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical contents disclosed by the utility model. At the same time, the terms such as "left", "right", "up", "down", and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.

[0020] like Figure 1As shown, the utility model provides a strap assembly, which is installed in a baler and used to pull the strapping tape to make the strapping tape tightly bind the packing box. The baler includes a tensioning device 1 and a welding device 2, wherein the tensioning device 1 is used to tighten the strapping tape; and the welding device 2 is used to cut and weld the strapping tape.

[0021] The tensioning device 1 comprises a handle 11 , a transmission assembly 12 and a drawstring assembly 13 . The handle 11 is connected to the drawstring assembly 13 via the transmission assembly 12 and drives the drawstring assembly 13 to move.

[0022] Please combine Figure 2 and Figure 3 The transmission assembly 12 includes an articulated shaft 121, a first mounting block 122, a second mounting block 123, a torsion spring 124, a motor 125, a gearbox 126, a worm 127 and a worm wheel 128. One end of the articulated shaft 121 is inserted into the first mounting block 122, and the other end passes through the second mounting block 123 to be connected to the drawstring assembly 13. The first mounting block 122 is connected to the handle 11. The torsion spring 124 is sleeved on the articulated shaft 121. One end of the torsion spring 124 is connected to the first mounting block 122, and the other end passes through the second mounting block 123 to be connected to the drawstring assembly 13. The first mounting block 122 is connected to the handle 11. One end is connected to the second mounting block 123; the output end of the motor 125 is connected to the gearbox 126, and the gearbox 126 is provided with three sets of meshing gears; the worm 127 is connected to the gearbox 126, and the third-stage gear in the gearbox 126 is sleeved on one end of the worm 127; the other end of the worm 127 is transmission-connected to the worm wheel 128, and the worm 127 and the worm wheel 128 are located in the first mounting block 122; the pull belt assembly 13 is connected to the worm wheel 128.

[0023] The transmission component 12 is not limited to the above structure, and the transmission component 12 can be other component structures that can achieve transmission functions.

[0024] Please combine Figure 3 and Figure 4 The belt pulling assembly 13 includes a belt pulling wheel 131, a tooth plate 132 and a baffle 133. The belt pulling wheel 131 is coaxial with the worm gear 128. The handle 11 drives the motor 125 and the belt pulling wheel 131 to move up and down with the hinge shaft 121 as the origin; the tooth plate 132 is fixedly installed below the belt pulling wheel 131, and there is a gap between the belt pulling wheel 131 and the tooth plate 132, and the packing belt is placed on the tooth plate 132; the baffle 133 is installed on the side of the belt pulling wheel 131, and one end of the hinge shaft 121 is fixed through the baffle 133 to prevent the packing belt from sliding sideways under the pulling of the belt pulling wheel 131, thereby affecting the packaging effect.

[0025] Specifically, the belt pulley 131 and the tooth plate 132 are both provided with inclined saw teeth, which are conducive to driving the packing belt to be tightened.

[0026] Furthermore, the serration directions of the belt pulley 131 and the tooth plate 132 are opposite.

[0027] When the baler is in use, the handle 11 is lifted to drive the transmission assembly 12 to rotate around the hinge shaft 121. Since the turbine 128 is coaxial with the pulley 131, the pulley 131 is lifted upward, and the gap between the pulley 131 and the tooth plate 132 is increased. The handle 11 is kept lifted to place the two overlapping layers of baling tape between the pulley 131 and the tooth plate 132. The handle 11 is released, and the torsion spring 124 drives the handle 11 to reset, and drives the transmission assembly 12 to rotate around the hinge shaft 121. The transmission assembly 12 is pressed downward, thereby driving the pulley 131 downward. ; Click or long press the button of the baler 1, the motor 125 starts or rotates continuously, and the pull wheel 131 is driven to rotate through the transmission assembly 12, and the serrations on the pull wheel 131 are engaged with the baling tape, driving the upper baling tape to move, tightening the baling tape until it reaches the set tightening force and stops automatically; start the welding device 2, and the welding device 2 cuts off and welds the two layers of baling tape by frictional heat; lift the handle 11 again, driving the pull wheel 131 upward, and at the same time the motor 125 rotates in the opposite direction, driving the pull wheel 131 to rotate in the opposite direction, and the serrations on the pull wheel 131 withdraw from the baling tape, making it easy to take out the baling tape.

[0028] In summary, the utility model effectively increases the efficiency of the strapping belt when it moves between the strapping wheel and the tooth plate by providing saw teeth with opposite inclination angles on the strapping wheel and the tooth plate. The strapping belt is not easy to slip or dislocate, and the strapping is convenient and beautiful.

[0029] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A drawstring assembly, characterized in that: include: Pull pulley; A tooth plate, the tooth plate is located below the pulley, and a packing belt is placed between the tooth plate and the pulley; The belt pulley and the tooth plate are provided with inclined saw teeth, and the saw teeth of the belt pulley and the saw teeth of the tooth plate are inclined in opposite directions.

2. A drawstring assembly according to claim 1, characterized in that: The belt pulling assembly further comprises a baffle plate, which is mounted on one side of the belt pulling wheel.

3. A baler, characterized in that: A drawstring assembly comprising any one of claims 1-2.

4. The baler according to claim 3, characterized in that: It also includes a handle and a transmission assembly, and the handle is connected to the drawstring assembly through the transmission assembly.

5. The baler according to claim 4, characterized in that: The transmission assembly includes an articulated shaft, a first mounting block, a second mounting block and a torsion spring, the two ends of the articulated shaft pass through the first mounting block and the second mounting block respectively, the torsion spring is mounted on the articulated shaft, one end of the torsion spring is connected to the first mounting block, and the other end is connected to the second mounting block.

6. The baler according to claim 5, characterized in that: The hinge shaft passes through the second mounting block and is connected to the baffle.

7. The baler according to claim 4, characterized in that: The transmission assembly includes a motor, a gearbox, a worm and a worm wheel. The output end of the motor is connected to the gearbox, one end of the worm is connected to the gearbox, and the other end is connected to the worm.

8. The baler according to claim 7, characterized in that: The worm wheel is coaxial with the pulley.

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