KR20220064636A - Tension control apparatus for baler net and bailer with it - Google Patents

Abstract

The present invention relates to a baler net tension control apparatus and a baler including the same. According to the present invention, the tension of a net surrounding the outer edge of a circular bale made by a baler is controlled, the net wound around the circular bale is capable of maintaining constant tension, and thus the circular bale is formed smoothly and anaerobic fermentation of the circular bale constantly occurs in the net. The baler tension control apparatus is provided at the baler to control the tension of the net surrounding the bale and includes: a cam drive gear rotated by an electric motor and equipped with a tension release cam; a brake member stopping or rotating a net roll where the net is wound; a pad arm operating the brake member while rotating about a hinge; a link member for tension release moving along the tension release cam of the cam drive gear and rotating about the hinge to press one end of the pad arm; and a drive link rotated by the cam drive gear and receiving the rotational force of the cam drive gear to rotate a roller drive pulley belt-connected to a net inflow roller.

Description

Net tension adjusting device for baler and baler having the same

The present invention relates to a net tension adjusting device for a baler and a baler having the same, and more particularly, by adjusting the tension of the net surrounding the outer periphery of the circular bale generated by the baler, the net wound on the circular bale maintains a certain tension. It relates to a net tensioning device for a baler and a baler having the same, so that the circular bale is smoothly formed by maintaining the circular bale and anaerobic fermentation of the circular bale is constantly generated inside the net.

In general, forage crops such as rice straw, hay, and grass go through a process of compression and binding in order to be easily processed, transported, and stored. The crop is called a bale. These balers are classified into a plunger baler that compresses crops for forage to create a rectangular bale and a round baler that produces a cylindrical bale.

The plunger baler compresses hay into a square shape to create a bale, and when the bale is formed to a certain length, it is bound by a binding device and is equipped with a knotting device to prevent the binding from being untied. are using

The round baler compresses hay into a cylindrical shape to create a bale, and also binds the round bale using twine or the like. However, recently, in order to preserve the shape of the circular bale formed by high pressure, the outer bale is wrapped with vinyl, and the vinyl used at this time is called a net.

And, the net for preserving the shape of the circular bale must be supplied to the bale while maintaining an appropriate tension. A conventional net supply unit for this is as follows.

As shown in FIG. 1, a typical net supply unit is a net inlet roller for supplying a net 6 wound with a net 6 and a net 6 introduced between the two to be interlocked to the bale 5. (4)(7) and the net (6) released from the netrol (1) are introduced between the pair of net inlet rollers (4) and (7) while maintaining the tension. A load roller 3 disposed between the rollers 4 and 7, and a brake member 2 comprising a brake drum 2a provided in the netrol 1 and a brake pad 2b in close contact with it, there is.

Accordingly, the net released from the netrol (1) flows through the load roller (3) and flows between the net inlet rollers (4) and (7) while maintaining an appropriate tension, and then is supplied to the bale (5) and supplied to the bale ( 5) will be covered. At this time, the brake member 2 stops the netrol 1 using the frictional force between the brake drum 2a and the brake pad 2b or controls the netrol 1 so that it can be rotated to prevent the net from loosening. are limiting

However, the above-described conventional net supply unit only supplies the net 6 with the tension applied by the load roller 3 and cannot adjust the tension of the net 6 according to the diameter of the bale 5, Due to this, there is a problem that the tension of the net 6 wound around the bale 5 cannot be constantly maintained.

For reference, if the tension of the net 6 is not constant when winding the net 6 around the bale 5, not only a problem in bale formation occurs, but also anaerobic fermentation may occur inconsistently depending on the tension of the net 6 .

On the other hand, in Laid-Open Patent Publication No. 10-2008-0001670, the film feeding device in the roll baler for dispensing the film by being disposed in front of the roll bale forming device for coating and packing the film on the outer circumferential surface of the roll bale. In the middle of coating the film with respect to the roll bale, in order to narrow the width of the film sent out from the raw film roll device, a pair of narrowing rollers arranged in the width direction of the film approaches and separates from each other while centering A film feeding device for a roll baler and a film winding method for a roll baler are proposed and disclosed, wherein the width narrowing device of the configuration is arranged between the raw film roll device and the driving roller device,

In Patent Publication No. 10-2011-0108948, in the crop silage wrapping mechanism of a baler composite machine for packaging the silage of the baling part with the plastic wrap of the plastic wrap part: The baling part in a state where the plastic wrap part for supplying the plastic wrap is mounted. Fixed table connected to the rear; a rotary table that is rotatably installed on the upper side of the fixed table, and performs a vertical axis rotary motion of the silage; Rotating means rotatably installed on the rotary table, performing a horizontal axis rotary motion of the silage; and a cutting means rotatably installed on one side of the rotary table and performing cutting of the wrapped plastic wrap, improving productivity by minimizing dropout while increasing equipment efficiency, and copper wire of the wrapping part A crop silage wrapping mechanism of a baler multi-function machine that can achieve a compact structure by reducing

Patent Registration No. 10-2136345 discloses, a cam driving unit including a motor and a cam plate rotated by the motor; A first link having a cam roller in contact with the cam surface of the cam plate on one side, second and third links hinged to one end of the first link, and a fourth link hinged to the third link A link connection unit consisting of; a net supply unit including a roller made of a pair of a rubber roller and a metal roller, and including a roller extension shaft provided in the center of the rubber roller and having a threaded portion formed at an end thereof by a predetermined length; a winding amount control unit interlocking with the second link and a control unit capable of setting a winding amount of the net by interaction with the roller extension shaft, the control unit and a support unit moving integrally; and a cutting unit that cuts the net after the net supplied from the net supply unit is wound on the bale by the amount of winding set by the winding amount adjusting unit; There is proposed and disclosed a baler having a net winding amount adjusting device capable of configuring such a winding amount adjusting device at low cost.

Laid-open Patent Publication No. 10-2008-0001670 Laid-open Patent Publication No. 10-2011-0108948 Registered Patent Publication No. 10-2136345

Therefore, the present invention has been devised in consideration of and solving the above problems, and by adjusting the tension of the net surrounding the outer periphery of the circular bale generated by the baler so that the net wound around the circular bale maintains a constant tension. An object of the present invention is to provide a net tension control device for a baler that allows the bale to be smoothly formed and anaerobic fermentation of a circular bale to occur constantly in the inside of the net, and a baler having the same.

In the baler tension adjusting device of the present invention for achieving the above object, the baler tension adjusting device for adjusting the tension of the net surrounding the baler is provided in the baler, rotated by an electric motor and provided with a tension release cam cam drive gear; a brake member for stopping or rotating the net on which the net is wound; a pad arm that operates the brake member while rotating around the hinge; a link member for releasing tension that moves along the cam for releasing tension of the cam drive gear and rotates around a hinge to press one end of the pad arm; and a driving link which is rotated by the cam driving gear and receives the rotational force of the cam driving gear to rotate the roller driving pulley connected to the net inlet roller by a belt.

Here, the brake member may include a brake drum installed on the roll shaft, and a brake pad provided in a pad holder rotatably installed on the pad arm to be in close contact with the brake drum.

Here, the brake member may be configured such that the brake pad is in close contact with the brake drum to apply tension to the net, and the brake pad is separated from the brake drum to release the tension of the net.

Here, the pad arm may be provided with a roller contacting the tension releasing link member at an upper end thereof, a hinge may be installed at a lower end portion, and a pad holder of the brake member may be rotatably installed above the hinge.

Here, the pad arm includes a main arm having a roller installed at the upper end and a pad holder and a guard at the lower end, and an auxiliary arm extending in a direction perpendicular to the lower end of the main arm so that the brake member does not operate. can,

Here, the tension releasing link member is composed of a vertical part and a horizontal part, a cam roller that elevates and rotates by a tension releasing cam is installed at the end of the horizontal part, and a main which rotates around a hinge installed in the central part of the horizontal part It may include a link and a pressing piece provided at the lower end of the main link to press the tip of the pad arm.

Here, the tension release link member extends in the horizontal direction from the lower end of the vertical part of the main link, and a first auxiliary link in which a subscription piece is installed, and a balance maintenance agent extending in an oblique direction from the end of the main link 2 It may further include an auxiliary link.

The net tension adjusting device for a baler of the present invention allows the brake pad to be separated from the brake drum and release the net from the net while the pad arm is rotated by the tension release link member rotated by the tension release cam and the drive link As the roller driving pulley rotates by the , the belt feed roller rotates so that the net released from the net roll is supplied to the bale, and the supplied net is wound by the bale by the rotational force of the bale, so the tension of the net is automatically adjusted as well as It is possible to achieve the useful effect that a high density of bales can always be produced constantly and that the anaerobic fermentation of the bales also occurs constantly.

According to the present invention, as the brake pad is provided in the pad holder rotatably installed on the pad arm, the contact area between the brake pad and the brake drum is maintained constant, and the contact area between the brake pad and the brake drum improves the braking force. effect can be achieved.

According to the present invention, the brake pad is brought into close contact with the brake drum to generate braking force by using the size difference between the main arm and the auxiliary arm constituting the pad arm, and the auxiliary arm is provided on the opposite side of the part to which the brake pad is connected of the brake member. As a result, a useful effect of controlling the operation of the brake member with less force can be achieved.

According to the present invention, the tension releasing link member is rotated by a cam roller that moves up and down according to the rotation of the cam, and as the pressing piece pushes the upper end of the pad arm, the pad arm rotates and the brake pad is separated from the brake drum. By allowing the trawl to rotate, it is possible to achieve the useful effect that tensioning or untensioning of the net as it is released from the trawl is automatically performed.

According to the present invention, it is possible to achieve a useful effect of being able to adjust the rotation amount of the pad arm in response to abrasion of the brake pad by adjusting the installation position of the pressing piece installed on the tension release link member.

1 is a block diagram schematically showing a net supply part of a general baler.
Figure 2 is a configuration diagram showing a net tension control device for a baler according to the present invention.
3 is a view schematically showing a state in which tension is generated in the net in the net tension adjusting device for a baler according to the present invention.
4 is a view schematically showing a state in which the tension of the net is released in the net tension adjusting device for a baler according to the present invention.
5 is a real photograph showing the brake member of the net tension adjusting device for balers according to the present invention.

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

The terms used in the present invention are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the definitions of these terms correspond to the technical matters of the present invention and should be interpreted as a concept.

The accompanying drawings, Figures 2 to 5 is a view for explaining the net tension control device for a baler according to the present invention.

The tension control device according to the present invention is provided in the baler to adjust the tension of the net surrounding the bale, and is rotated by the electric motor 11 as shown in FIG. 2 and is provided with a tension release cam 15 The cam driving gear 10, the brake member 40 for stopping or rotating the net 100 on which the net 100 is wound, and the brake member 40 while rotating around the hinge 31 ) moves along the pad arm 30 that operates and the cam 15 for tension release of the cam driving gear 10, and rotates around the hinge 21 to press one end of the pad arm 30 A roller driven pulley ( 55) and includes a drive link 56 for rotating it.

Reference numeral 58, which is not described, denotes a tension roller for adjusting the tension of the belt 57, and 58' denotes a tension roller bracket on which the tension roller is installed.

As shown in Figs. 3 and 4, the tension release link member 20 has a vertical portion and a horizontal portion, and a cam roller 22 that is lifted and rotated by a tension release cam 15 at the end of the horizontal portion. ) is installed and the main link 20a rotates about the hinge 21 installed in the center of the horizontal part according to the rotation of the cam 15 for releasing tension, and the main link to press the tip of the pad arm 30 . A first auxiliary link 20b and a main link ( A second auxiliary link (20c) for maintaining balance is formed extending in an oblique direction from the end of 20a).

Accordingly, as the tension release link member 20 rotates in conjunction with the rotation of the tension release cam 15 , the pressing piece 23 installed on the first auxiliary link 20b is advanced to rotate the pad arm 30 . be able to do

Then, the pad arm 30 stops the operation of the brake member 40 through rotation so that the net 100 is rotated so that the net 100 can be released.

The cam roller 22 rotates in engagement with the tension release cam 15 , and is raised and lowered at the same time as the cam 15 rotates according to the rotation of the tension release cam 15 so that the main link 20a rotates around the hinge 21 . make it possible

In addition, the cam roller 22 serves to minimize the frictional force with the tension release cam 15 by rotating in engagement with the tension releasing cam 15 .

In addition, an installation hole 23' is formed in the pressing piece 23 so that the pressing piece 23 can be installed on the first auxiliary link 20b.

At this time, it is preferable that the installation holes 23 ′ are formed in pairs in the vertical direction, and a plurality of installation holes 23 ′ are provided in the pressing piece 23 in the longitudinal direction so that the installation position of the pressing piece 23 can be changed. It is more preferable to be formed at regular intervals along the

Accordingly, the rotation amount of the pad arm 30 can be adjusted by changing the installation position of the compression piece 23 , and when the brake pad 41 is worn, the pad arm 30 is rotated more so that the braking force is constant. be able to keep

As shown in FIGS. 3 and 4, the pad arm 30 has a relatively long length, a hinge 31 is installed at the lower end, and a pad holder (40) of the brake member 40 on the upper side of the hinge 31. 42) is rotatably installed, the main arm 30a, and the auxiliary arm 30b extending in a direction perpendicular to the main arm 30a from the lower end of the main arm 30a so that the brake member 40 does not operate. is made of

Accordingly, the pad arm 30 is tilted in the direction of the netrol 10 due to the difference in length between the main arm 30a and the auxiliary arm 30b, and the brake member 40 When the trawl 10 is maintained in a stationary state, and the pad arm 30 is rotated by the tension release link member 20, the rotational force is increased by the auxiliary arm 30b, so that the pad arm can be operated with a smaller force. (30) can be rotated.

At this time, the upper end of the main arm 30a is preferably provided with a roller 32 to which the pressing piece 23 of the tension releasing link member 20 comes into contact, which is the pressing piece 23 and the main arm 30a. This is to minimize friction between them.

The brake member 40 is for adjusting the tension of the net 100 released from the netrol 50, and as shown in FIGS. 3 to 5, a brake drum 45 installed on the roll shaft 51. and a brake pad 41 provided in a pad holder 42 rotatably installed on the pad arm 30 and in close contact with the brake drum 45 .

In addition, the brake member 40 applies tension to the net 100 by stopping the net roll 10 as the brake pad 41 is in close contact with the brake drum 45, and the pad arm 30 is rotated. As a result, the brake pad 41 is spaced apart from the brake drum 45 so that the netrol 10 can be rotated, thereby releasing the tension of the net 100 .

At this time, as the pad holder 42 provided with the brake pad 41 is rotatably installed on the pad arm 30 , when the pad arm 30 rotates, the pad holder 42 is rotated to thereby rotate the brake pad 41 . ) can be made to be in close contact with the brake drum 45 , thereby improving the braking force by the brake member 40 .

Hereinafter, the operation of the tension control device for a baler of the present invention will be described.

When the electric motor 11 is operated, the cam driving gear 10 and the cam 15 for releasing tension are rotated.

Accordingly, the cam roller 22 of the tension release link member 20 rotates and moves upward, and as the cam roller 22 moves upward, the tension release link member 20 moves around the hinge 21 . will rotate counterclockwise.

Then, the actuating piece 23 installed on the tension release link member 20 moves forward and pushes the upper end of the pad arm 30, and the pad arm 30 rotates clockwise around the hinge 31 at the lower end. will rotate to

Accordingly, the brake pad 41 provided in the pad holder 42 installed on the pad arm 30 is separated from the brake drum 45, so that the net 100 on which the net 100 is wound can rotate. do.

Then, the roller driving pulley 55 is rotated by the driving link 56 connected to the cam driving gear 10 to rotate the roller driving pulley 54 ′ connected to the roller driving pulley 55 by a belt 57 , , This causes the net inlet rollers 53 and 54 to rotate to supply the net 100 to the bale (not shown).

In this state, according to the rotation of the bale, the net 100 is wound on the outside of the bale, and the bale causes the net 100 to be wound on the bale by a set number while pulling the net 100, and the net 100 is all After winding, the net 100 is cut by a net cutting knife (not shown), and the inflow of the net is stopped.

Since the operation of the electric motor 11 is stopped when the net 100 is cut, the rotation of the cam driving gear 10 and the tension releasing cam 15 is stopped.

At this time, since the cam roller 22 is lowered according to the shape characteristic of the cam 15 for tension release, the link member 20 for tension release is rotated clockwise to move the actuating piece 23 from the pad arm 30 . Return to the initial position, such as to allow it to disengage.

Then, when the tension releasing link member 20 returns to the initial position and the pressure acting on the upper end of the pad arm 30 is released, the pad arm 30 is the length of the main arm 30a and the auxiliary arm 30b. It is rotated counterclockwise by the car.

Therefore, the brake pad 41 is in close contact with the brake drum 45 as shown in FIG. 3, and the roll shaft 51 and the four brake drum 45 are installed by the frictional force between the brake pad 41 and the brake drum 45. The trawl 50 is stopped without rotating. When the net roll 50 is stopped, tension is added to the net 100, and the drive link 56 connected to the cam drive gear 10 also returns to its initial position and stops the net inlet rollers 53 and 54 to stop the net. (100) is no longer supplied,

When the above process is repeated, the net 100 is wound around the bale generated by the baler, and a circular bale in which anaerobic fermentation is performed is completed.

The embodiments described above are merely illustrative of preferred embodiments of the present invention and are not limited to these embodiments, and various modifications and variations by those skilled in the art within the technical spirit and claims of the present invention It will be said that it can be made, and it will be said that it falls within the technical scope of the present invention.

10: cam drive gear 11: electric motor
15: cam for tension release 20: link member for tension release
20a: main link 20b: first auxiliary link
20c: second auxiliary link 21: hinge
22: cam roller 23: press piece
23': installer 30: pad arm
30a: main arm 30b: auxiliary arm
31: hinge 32: roller
40: brake member 41: brake pad
42: pad holder 45: brake drum
50: netrol 51: roll shaft
52: load roll 53: net inlet roll
54: net inlet roll 54': net inlet roller pulley
55: roller drive pulley 56: drive link
57: chain 58: tension roller
58' : tension roller bracket

Claims (10)

In the baler tension adjusting device for adjusting the tension of a net that is provided on the baler and surrounds the bale,
a cam driving gear rotated by an electric motor and provided with a cam for tension release;
a brake member for stopping or rotating the net on which the net is wound;
a pad arm that operates the brake member while rotating around the hinge;
a link member for releasing tension that moves along the cam for releasing tension of the cam drive gear and rotates around a hinge to press one end of the pad arm; and
A tension control device for a baler comprising a; a drive link which is rotated by the cam drive gear and rotates the roller drive pulley connected to the net inlet roller by a belt by receiving the rotational force of the cam drive gear.
The method according to claim 1,
The brake member includes a brake drum installed on the roll shaft, and a brake pad provided on a pad holder rotatably installed on the pad arm to be in close contact with the brake drum.
3. The method according to claim 2,
The brake member is configured to apply tension to the net while the brake pad is in close contact with the brake drum, and release the tension of the net by separating the brake pad from the brake drum by rotation of the pad arm. Device.
The method according to claim 1,
The pad arm is provided with a roller contacting the tension releasing link member at the upper end, and a hinge is installed at the lower end, and the pad holder of the brake member is rotatably installed on the upper side of the hinge. .
5. The method according to claim 4,
The pad arm includes a straight main arm having a roller installed at the upper end and a pad holder and a hinge installed at the lower end, and an auxiliary arm extending from the lower end of the main arm in a direction perpendicular to the main arm so that the brake member does not operate. Tension control device for a baler, characterized in that it comprises.
The method according to claim 1,
The tension releasing link member is composed of a vertical part and a horizontal part, and a cam roller that lifts and rotates by a tension releasing cam is installed at the end of the horizontal part. A tension control device for a baler, comprising: a main link that rotates to the center; and a pressing piece installed at the lower end of the main link to press the tip of the pad arm.
7. The method of claim 6,
The tension release link member extends in the horizontal direction from the lower end of the vertical part of the main link and further comprises a first auxiliary link on which a pressing piece is installed.
8. The method of claim 7,
Tension control device for a baler, characterized in that a plurality of installation holes are formed at regular intervals along the longitudinal direction in the pressing piece so as to change the installation position of the pressing piece.
7. The method of claim 6,
The tension release link member further comprises a second auxiliary link for balance maintenance extending in an inclined direction from the end of the main link.
A baler equipped with a tension adjusting device for a baler according to any one of claims 1 to 9.

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