KR101193402B1 - Pneumatic tensioner - Google Patents

Abstract

An object of the present invention is to provide a pneumatic tensioner that can adjust the pressure in the tensioner itself, and also can reduce the noise.
The present invention for the above purpose is to control the pneumatic pressure supplied from the outside; Pneumatic motor unit for generating a rotational force by using the pneumatic pressure supplied from the pneumatic control means; A planetary gear unit that reduces the rotational force generated by the pneumatic motor unit; A worm gear unit which decelerates the rotational force decelerated in the planetary gear unit, converts the rotational force by a predetermined distance, and converts the rotational force by 90 degrees to the feed wheel; And a head part accommodating a binding band to apply rotational force by the feed wheel to the band.

Description

Pneumatic tensioner

The present invention relates to a pneumatic tensioner, and more particularly to a pneumatic tensioner in which the pneumatic pressure supplied to a portable tensioner used for packaging binding is controlled in the tensioner itself.

Tensioner is a portable binding machine that is widely used for binding tubes, wires, coils, various packages as well as round or irregular packages, and is a tool commonly used with sealers for binding medium and large packages.

The tensioner as above is divided into two types, manual and pneumatic. First, the manual type has the advantage of not requiring a separate power, but depending on the user's power, it is difficult to work, and also hold the band The situation is avoided from the user due to the lack of pulling force.

It is a pneumatic tensioner to improve the passive tensioner as described above, and by using pneumatic as a power source, the binding force for heavy materials is increased, and it is replaced by the passive type by the convenience of use and is widely used.

The structure of the pneumatic tensioner consists of a pneumatic motor, a reduction gear for reducing the rotation occurring in the industrial motor, and a feed wheel for transmitting the reduced rotation to the band. On the other hand, when using a pneumatic tensioner must be supplied with pneumatic pressure from the outside to operate the feed wheel, the final packaging binding force depends on the supply air pressure. In other words, when the air pressure is high, the binding force increases, and when the air pressure decreases, the binding force decreases, and the adjustment of the air pressure is used by setting the used air pressure as the pressure regulator of the air supply device. Therefore, when the use of the working air pressure needs to be adjusted according to the use of the work in use, there are disadvantages such as inconvenience in use and delay in working time by resetting the pressure regulator of the air supply device.

And a pneumatic motor is a device that drives the motor using high pressure air, which is a major factor that deteriorates the working environment by generating noise.

The present invention is to overcome the disadvantages of the conventional pneumatic tensioner as described above is to provide a pneumatic tensioner that can adjust the pressure in the tensioner itself, and also can reduce the noise.

The present invention to solve the above problems the pneumatic pressure adjusting means for adjusting the pneumatic pressure supplied from the outside; Pneumatic motor unit for generating a rotational force by using the pneumatic pressure supplied from the pneumatic control means; A planetary gear unit that reduces the rotational force generated by the pneumatic motor unit; A worm gear unit which decelerates the rotational force decelerated in the planetary gear unit, converts the rotational force by a predetermined distance, and converts the rotational force by 90 degrees to the feed wheel; And a head part accommodating a binding band to apply rotational force by the feed wheel to the band.

Preferably, the pneumatic adjustment means includes an adapter including a coupler for receiving an external pneumatic hose, the adapter having a hole through which the external pneumatic passage; A valve including a stem hole configured to receive a pneumatic flow path and a valve stem therein, the valve being coupled to the adapter; A valve stem movably received in the stem hole, the opening of the pneumatic flow path being changed according to the movement; And a valve ring fixed to the outside of the valve, the valve stem being moved on the stem hole by its own rotation.

More preferably, the valve stem is supported by the valve by a spring at one end, has a notch for opening and closing the pneumatic flow path, the other side is characterized in that supported by the guide of the valve ring.

More preferably, the guide has a different height in the circumferential direction so that the valve stem is moved differently onto the valve hole according to the rotation angle of the valve ring to determine the opening degree of the pneumatic flow path.

More preferably, the guide is formed with a plurality of dents according to the height is characterized in that the valve stem is moved in stages.

Preferably, the planetary gear unit comprises a first planetary gear set and a second planetary gear set, characterized in that for transmitting the rotational force of the pneumatic motor unit from the first planetary gear to the second planetary gear.

More preferably, the first planetary gear set includes two first planetary gears, and the second planetary gear set includes three second planetary gears.

Preferably, the pneumatic motor unit is a cylinder, a rotor accommodated in the cylinder, a plurality of vanes coupled to the rotor, a first cylinder cover coupled to the right side of the cylinder, a second cylinder cover coupled to the left side of the cylinder And a cylinder housing coupled to the outside of the cylinder, wherein the cylinder housing is provided with an air hole for discharging pneumatics from the cylinder, and noise reduction means for reducing noise caused by the pneumatic pressure is formed outside the air hole. It is characterized by being formed.

More preferably, the noise reduction means includes a filter disposed in a circle outside the air hole and a plurality of noise holes in the surface, and characterized in that the ring cover located in a circle outside the filter.

Preferably, the head part comprises: a head housing for pivotally coupling the worm housing and the pivot spring of the worm gear unit; A handle which is fixed to one side of the head housing and which can easily cause swing of the head housing; A guide surface formed in the head housing to receive a binding band; A backup roll formed on the guide surface, the backup roll rotating supporting the feed wheel and the band; and a brake nose fixed to the front surface of the head housing, the brake nose including a line part capable of cutting the bend after the tension of the band is completed. do.

According to the present invention, since the pneumatic tensioner itself includes a pressure regulating means, it improves the convenience of use and prevents the delay of working time, compared to the conventional method of adjusting the air pressure through the pressure regulator of the external air supply device, Silencer is installed in the air outlet to reduce noise and improve working environment.

1 is a perspective view of a pneumatic tensioner according to the present invention,
2 is a cross-sectional view of FIG.
3 is an assembly view of the pneumatic adjustment means of FIG.
4 is an assembly view of the pneumatic motor unit and the planetary gear unit of FIG.
5 is an assembly view of the head part of FIG. 1.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a pneumatic tensioner according to the invention, Figure 2 is a cross-sectional view of Figure 1, Figure 3 is an assembly view of the pneumatic control means of Figure 1, Figure 4 is a pneumatic motor unit and planetary gear unit of Figure 1 Fig. 5 is an assembly view of the head part of Fig. 1.

The pneumatic tensioner 1000 according to the present invention includes a pneumatic adjustment means 100, a pneumatic motor unit 200, a planetary gear unit 300, a worm gear unit 500, and a head part 600.

The pneumatic regulating means 100 is to adjust the pneumatic pressure supplied from the external pneumatic supply, as shown in Figures 2 and 3 valve ring 10, valve 20, valve stem 30, adapter 40 It includes.

The adapter 40 has an adapter hole 41 formed therein, and the coupler 43 for supplying air pressure is attached to the outside of the adapter hole 41. Pneumatic pressure is thus supplied to the adapter hole 41 through the coupler 43.

The valve 20 has a pneumatic flow passage 21 formed therein, and the pneumatic flow passage 21 communicates with the adapter hole 41 when the adapter 40 is screwed.

In addition, the valve 20 is formed with a stem hole 22 for receiving the valve stem 30 in a radial direction, so that the valve stem 30 is movable along the stem hole 22. The upper part of the valve stem 30 is supported by a plug 34 fixed to the valve 20 via a spring 32. Therefore, the valve stem 30 moves to the upper end when pressing the lower part and moves to the lower end by the spring 32 when removing the pressing force of the lower part.

The notch part 36 is formed in the valve stem 30, and when the valve stem 30 is located below, the notch part 36 blocks the pneumatic flow path 21 to block inflow of pneumatic pressure. .

On the other hand, the valve ring 20 is rotatably fixed to the outside of the valve 20. In the valve ring 20, a guide 12 is formed to receive a lower end of the valve stem 30.

The guide 12 has a different height in the radial direction as shown in FIG. At this time, when the valve ring 10 is rotated relative to the valve 20, the valve stem 30 is moved upward by the guide 12 to determine the opening amount of the pneumatic flow path 21, The air pressure supplied can be adjusted.

In addition, if necessary, when the dent 14 is formed in the guide 12 step by step, the valve ring 10 may be accurately rotated, and thus, an accurate amount of air may be adjusted.

Therefore, the pneumatic adjustment means 100 has a feature that can adjust the pneumatic pressure supplied therein only by the rotation operation of the valve ring (10).

Next, the pneumatic motor unit 200 will be described with reference to FIGS. 2 and 4.

The pneumatic motor unit 200 converts the pneumatic pressure supplied from the pneumatic adjustment means 100 into a rotating force, the rotor 101, the plurality of vanes 102, the cylinder 110, the first cylinder cover 120, the first The two cylinder cover 130, the cylinder housing 140, the filter 142, the ring cover 150, the bearing housing 160, the first bearing 171, and the second bearing 172 are included.

The cylinder 110 serves to rotate the rotor 101 by supplying air pressure to the vane 102 to the rotor 101 and the vane 102 is mounted therein.

Supply air pressure is supplied to the vane 102 through the supply hole 112 formed in the front and rear through the supply passage 111 from the side to rotate the rotor 101 and then the plurality of discharge holes 113 formed on the side surface. Through the circumferential direction. Since a portion of the circumferential surface of the cylinder 110 is formed in a plane and a discharge hole 113 is formed in the plane, a gap exists between the cylinder housings 140 coupled to the outside of the cylinder 110. It is discharged to the outside through the gap.

On the other hand, the first cylinder cover 120 is circular in the center is formed in the center to accommodate the shaft of the rotor 101, and also through the communication hole 121 is formed in communication with the supply hole 112 formed in the cylinder 110 Is formed, and delivers the pneumatic pressure supplied through the pneumatic control means 100, the first bearing 171 is fixed to the right for smooth rotation of the rotor 101 axis.

In addition, the second cylinder cover 130 has a hole which can accommodate the shaft of the rotor 101 in the same shape as the outer shape of the cylinder 110, and also has a second coupling with the shaft of the rotor 101. It also serves to receive the bearing 172 and seal the cylinder 110.

The bearing housing 160 is located on the left side of the second cylinder cover 130.

On the other hand, from the left side of the valve 20 of the pneumatic adjustment means 100, the cylinder housing 140 outside the first cylinder cover 120, the cylinder 110, the second cylinder cover 130 and the bearing housing 160 In this position, in particular, the cylinder housing 140 and the valve 20 are fastened with screws to engage with the pneumatic adjustment means 100.

In addition, the left side of the cylinder housing 140 is screwed with the motor housing 200 to be described later to be coupled to the transmission.

In addition, a plurality of air holes 144 are formed in the cylinder housing 140 in the circumferential direction, and a filter 142 is seated outside the air hole 144, and a plurality of noise holes outside the filter 142. Ring cover 150 is formed in the circumferential direction 152 is coupled. Therefore, the air discharged from the cylinder 110 is discharged from the air hole 144 passes through the filter 142 and finally discharged to the noise hole 152 to reduce the noise.

Meanwhile, the shaft of the rotor 101 is further extended than the bearing housing 160 and connected to the transmission device.

Next, the planetary gear unit 300 will also be described with reference to FIGS. 2 and 4.

The planetary gear unit 300 includes a first planetary gear set 310 and a second planetary gear set 350, wherein gears formed on the rotor 101 shaft are sun gears of the first planetary gear set 310. Play a role, and power is transmitted.

First, the first planetary gear set 310 and the second planetary gear set 350 are accommodated in the motor housing 380. The right side of the motor housing 380 is fixed by screwing the cylinder housing 140.

The third bearing 173 is accommodated in the bearing housing 160, and a part of the first gear housing 311 is accommodated in the second bearing 173. The first gear housing 311 serves as a sun gear of the carrier of the first planetary gear set 310 and the second planetary gear set 350 and has a hollow portion to accommodate the gear formed on the shaft of the rotor 101.

In addition, two first planetary gears 312 are rotatably fixed in a circumferential direction of the first gear housing, and a first ring gear 313 meshing with the first planetary gears 312 is connected to the motor housing 380. Is fixed to.

A fourth bearing 174 for accommodating the first gear housing 311 is fixed to the motor housing 380 on the left side of the first planetary gear 312.

The fifth bearing 175 is fixed to the motor housing 380 on the left side of the fourth bearing 174, and the right side of the second gear housing 351 is accommodated in the fifth bearing 175. The second gear housing 351 serves as a carrier of the second planetary gear set 350, and three second planetary gears 352 are fixed to rotate in the circumferential direction.

In addition, a hollow part is formed in the second gear housing 351, and a left gear part of the first gear housing 311 is seated in the hollow part to be coupled to the second planetary gear 352.

In addition, a second ring gear 353 meshing with the second planetary gear 352 is fixed to the motor housing 380.

On the left side of the second gear housing 351, a sixth bearing 176, which accommodates a left portion of the second gear housing 351, is seated on the left side of the motor housing cover 360. It is fixed by screwing it.

In addition, the left side of the second gear housing 351 is formed with a hexagonal hole 355 is coupled to the worm gear unit 500 for power transmission.

Meanwhile, two first planetary gears 312 are used as the first planetary gear set 310, and three second planetary gears 352 are used as the second planetary gear set 350. . Since the second planetary gear set 350 transmits a decelerated rotation than the first planetary gear set 310, more torque is transmitted and thus the number of the second planetary gear sets 350 is used.

Next, the worm gear unit 500 will be described with reference to FIG. 2.

The dignity gear unit 500 serves to rotate the feed wheel 400 for applying tension to the belt by receiving power from the planetary gear unit 200.

The worm gear unit 500 includes a worm housing 510, and the right side of the worm housing 510 is screwed with the left side of the motor housing 280.

In addition, the worm hole 511 is formed in the same direction as the central axis of the second gear housing 251, the seventh bearing 177 is seated on the right side of the worm hole 511, the needle on the left side An eighth bearing 178 that is a bearing is seated.

The worm 520 is accommodated in the seventh bearing 177 and the eighth bearing 178, and the right side of the worm 520 has a hexagonal hole 255 formed in the second gear housing 251. Coupled to, the rotational force of the second gear housing 251 is transmitted.

A worm gear 530 is seated at the lower end of the worm housing 510 to engage with the worm 520 to convert the rotational force of the worm 520 in the vertical direction.

The worm gear 530 is splined to the worm gear shaft 540 in the center, the worm gear shaft 540 is extended in the vertical direction of the worm housing 510 is coupled to the feed wheel 400 from the outside. .

Next, the head part 600 will be described with reference to FIG. 5.

The head part 600 serves to accommodate the band for binding, and also guides to apply tension to the band by contacting the pit wheel 400 and the band.

First, the head housing 610 is included. The head housing 610 is coupled to the worm housing 510 by a pivot shaft 620 and a pivot spring 622. Therefore, the head housing 610 swings with respect to the worm housing 510, and is located in one direction when no force is applied by the pivot spring 622.

A handle 630 is mounted on the top of the head housing 610 to allow an operator to easily operate the movement of the head housing 610.

In addition, the lower end of the head housing 610 is formed with a guide surface 640 for guiding the band, the feed wheel 400 is located at a predetermined gap on the top of the guide surface 640, the guide surface 640 The backup roll 650 corresponding to the feed wheel 400 is located at the bottom.

In addition, the brake nose 660 is coupled to the front of the head housing 610, the line portion 662 of the brake nose 660 forms a constant gap with the guide surface 640 to position the band in the gap. After the tension is applied to the band, the band is cut by the line part 662. After combining the components, the protective side plate 670 is coupled to the side.

When the handle 630 is pressed downward, the feed wheel 400 and the backup roll 650 are opened, so that the band is positioned between them, and when the pressure is removed, the pivot spring 622 causes the head housing. 610 is moved upward to press the band located between the feed wheel 400 and the bell-up roll 650.

An operation configuration of the pneumatic tensioner 1000 according to the present invention having the above configuration will be described.

First, when the valve ring 10 is placed where air pressure is cut off, and the external pneumatic supply is connected to the coupler 43, the eye is blocked by the valve stem 30.

When the handle 630 is pressed downward, a gap is formed between the feed wheel 400 and the backup roll 650, so that the binding band is positioned on the guide surface 640 between the gaps.

Then, when the pressing force is removed from the handle 630, the binding band is temporarily fixed while receiving a load force between the feed wheel 400 and the backup roll 650 by the action of the pivot spring 622.

Then, when the valve stem 30 is moved upward by turning the valve ring 10, pneumatic pressure is supplied to the pneumatic motor unit 200 to rotate the rotor 101.

Rotation force of the rotor 101 is the feed wheel 400 connected to the worm gear shaft 540 via the first planetary gear unit 310, the second planetary gear unit 350, the worm 520, and the worm gear 530. It works.

At this time, the band in contact with the feed wheel 400 is tensioned while moving in the rotational direction by the rotational force of the feed wheel 400.

After a certain tension is applied, the band is sealed using a sealer, and then the pneumatic tensioner 1000 is folded upward to cut the band using the line portion 662 of the brake nose 660 to complete the operation.

While the invention has been shown and described with respect to certain preferred embodiments, the invention is not limited to these embodiments, and those of ordinary skill in the art claim the invention as claimed in the appended claims. It includes all embodiments of the various forms that can be carried out without departing from the spirit.

10: valve ring 12: guide
14: dent 20: valve
21: pneumatic flow path 22: stem hole
30: valve stem 32: spring
34: plug 36: notch
40: adapter 41: adapter hole
43: coupler 100: pneumatic adjustment means
101: rotor 102: vane
110: cylinder 111: supply passage
112: supply hole 113: discharge hole
120: first cylinder cover 121: through hole
130: second cylinder cover 140: cylinder housing
142: filter 144: air hole
150: ring cover 152: noise hole
160: bearing housings 171 to 178: first to eighth bearings
200: pneumatic motor unit 300: planetary gear unit
310: first planetary gear set 311: first gear housing
312: first planetary gear 313: first ring gear
350: second planetary gear set 351: second gear housing
352: second planetary gear 353: second ring gear
355: hexagonal hole 400: feed wheel
500: worm gear unit 510: worm housing
511: wormhole 520: worm
530: worm gear 540: worm gear shaft
600: head part 610: head housing
620: pivot axis 622: pivot spring
630: handle 640: guide surface
650: backup roll 660: brake nose
662: line portion 670: side plate
1000: pneumatic tensioner

Claims (10)

delete delete delete Pneumatic adjustment means for adjusting the pneumatic pressure supplied from the outside;
Pneumatic motor unit for generating a rotational force by using the pneumatic pressure supplied from the pneumatic control means;
A planetary gear unit that reduces the rotational force generated by the pneumatic motor unit;
A worm gear unit which decelerates the rotational force decelerated in the planetary gear unit, converts the rotational force by a predetermined distance, and converts the rotational force by 90 degrees to the feed wheel; And
In the pneumatic tensioner that includes a head part for receiving the binding band to apply a rotational force by the feed wheel to the band,
The pneumatic control means is:
An adapter comprising a coupler to receive an external pneumatic hose, the adapter including a hole through which external pneumatics pass;
A valve including a stem hole configured to receive a pneumatic flow path and a valve stem therein, the valve being coupled to the adapter;
A valve stem movably received in the stem hole, the opening of the pneumatic flow path being changed according to the movement; And
Rotationally fixed to the outside of the valve, comprising a valve ring to move the valve stem on the stem hole by its rotation,
The valve stem is supported by the valve by a spring at one end, has a notch for opening and closing the pneumatic flow path, the other side is supported by the guide of the valve ring,
And the guide has a different height in the circumferential direction so that the valve stem is moved differently onto the valve hole according to the rotation angle of the valve ring to determine the opening degree of the pneumatic flow path.
The pneumatic tensioner according to claim 4, wherein a plurality of dents are formed in the guide according to the height, so that the valve stem moves in stages.
delete delete delete Pneumatic adjustment means for adjusting the pneumatic pressure supplied from the outside;
Pneumatic motor unit for generating a rotational force by using the pneumatic pressure supplied from the pneumatic control means;
A planetary gear unit that reduces the rotational force generated by the pneumatic motor unit;
A worm gear unit which decelerates the rotational force decelerated in the planetary gear unit, converts the rotational force by a predetermined distance, and converts the rotational force by 90 degrees to the feed wheel; And
A pneumatic tensioner comprising a head part for receiving a binding band and applying a rotational force by the feed wheel to the band,
The pneumatic motor unit may include a cylinder, a rotor accommodated in the cylinder, a plurality of vanes coupled to the rotor, a first cylinder cover coupled to the right side of the cylinder, a second cylinder cover coupled to the left side of the cylinder, and the outer cylinder. A cylinder housing coupled to the
The cylinder housing is formed with an air hole for pneumatic discharge to rotate the vane from the cylinder, the noise reduction means for reducing the noise caused by the pneumatic air hole is formed,
The noise reduction means includes a filter disposed in a circular shape outside the air hole and a plurality of noise holes in a surface, and a pneumatic tensioner, characterized in that it is a ring cover located circularly outside the filter.
Pneumatic adjustment means for adjusting the pneumatic pressure supplied from the outside;
Pneumatic motor unit for generating a rotational force by using the pneumatic pressure supplied from the pneumatic control means;
A planetary gear unit that reduces the rotational force generated by the pneumatic motor unit;
A worm gear unit which decelerates the rotational force decelerated in the planetary gear unit, converts the rotational force by a predetermined distance, and converts the rotational force by 90 degrees to the feed wheel; And
A pneumatic tensioner comprising a head part for receiving a binding band and applying a rotational force by the feed wheel to the band,
The head part is:
A head housing pivoting through a worm housing and a pivot spring of the worm gear unit;
A handle which is fixed to one side of the head housing and which can easily cause swing of the head housing;
A guide surface formed in the head housing to receive a binding band;
A backup roll formed on the guide surface to support rotation of the feed wheel and the band; and
And a brake nose fixed to the front face of the head housing, the brake nose including a line portion for cutting the bend after the tension of the band is completed.

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