JPH0221195Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial application field This invention uses the grass collected at the pick-up section.
This invention relates to a roll forming machine in which briquettes are formed in a forming chamber formed by compression rolls, and the briquettes are sent out from the forming chamber with the compression rolls in a twisted position.

Conventional technology Grass collected at the pick-up section is guided by a guide plate installed at the rear of the pick-up section to a forming chamber formed by compression rolls at the rear of the machine, and the briquettes formed in the forming chamber are compressed to a predetermined hardness. Then,
Since the compression roll is installed in a twisted position,
A device is known in which briquettes are released by its feeding action.

Problems to be Solved by the Present Invention However, when the compression roll is installed in a twisted position, the twisted end side of the compression roll advances forward and comes into contact with the guide plate. A required gap is provided between the trailing edge of the plate and the compression roll. For this reason, there is an inconvenience that the grass fed to the forming chamber falls downward through this gap, causing loss.Moreover, if a large amount of grass is fed to the delivery side where the density of the briquettes tends to increase,
There were disadvantages such as the density of the entire briquette becoming non-uniform and unreasonable force being applied to the compression roll.

The present invention was devised to solve these problems in view of the above-mentioned actual situation, and it can be used without any special gap between the guide plate and the compression roll.
When the compression roll is installed in a twisted position, the rear edge of the guide plate is prevented from coming into contact with the compression roll,
This prevents grass from falling through the gaps and causing loss, and also prevents excess grass from being supplied to the briquette delivery side of the forming chamber and exerting excessive force on the compression rolls, ensuring uniform production at all times. The object of the present invention is to provide a roll forming machine that can form briquettes with a high density.

Means for Solving the Problems The technical means taken by the present invention to achieve the above-mentioned purpose is that grass collected at the pick-up section at the front of the machine is collected by a guide plate installed at the rear of the pick-up section. In a roll forming machine, the briquettes are guided to a forming chamber formed by a rear compression roll, and the briquettes compression-molded in the forming chamber are discharged by the feeding action of the compression roll in a twisted mounting position. It is characterized in that the edge of the plate on the side of the compression roll is formed into an inclined shape that becomes higher in the direction in which the briquettes are sent out.

Effects of the invention Next, the effects of the invention configured as described above will be explained. If the roll forming machine is towed by a tractor and run along the windrow, the grass collected by the pick-up section installed at the front of the machine will be guided by the guide plate installed at the rear of the pick-up section, and will be guided to the machine. It is supplied to the rear molding chamber. When the supplied grass is compressed and formed into briquettes by the compression rolls, the compression rolls assume a twisted mounting position, and the briquettes are sent out of the forming chamber by their delivery action. Even if the end of the compression roll moves forward and upward when it assumes a twisted mounting position, it will not come into contact with the inclined guide plate that is higher in the feed direction, and will smoothly move from the guide plate toward the molding chamber. Moreover, since the grass is guided by the inclined part of the guide plate in the opposite direction to the feeding direction of the briquettes, extra grass can be supplied to the feeding side where the density of the briquettes tends to be high. briquettes with uniform density can be formed.

Embodiment The structure of the present invention will be explained with reference to the embodiment shown in the drawings. 1 is a tractor, 2 is a roll forming machine towed by the tractor 1, and the front part of the roll forming machine 2 is equipped with: A pick-up part 4 is equipped to pick up the windrowed grass from the side of the tractor 1 with tines 3. Further, a compression molding section 7 having a molding chamber 6 formed by a plurality of compression rolls 5, 5, . . . is provided at the rear of the machine. The plate 8 forms a grass conveyance path. The grass collected in the pick-up section 4 is conveyed rearward on a guide plate 8 by a front packer 9, pushed into the molding chamber 6 by a rear packer 10, and subjected to the compression action of compression rolls 5, 5... Formed into cylindrical briquettes.

The shaft 11 of the compression roll 5 is the tractor 1
One end on the opposite side is attached to the gear case 12 with an alignment bearing 13
A driven gear 16 that meshes with a gear 15 fixed to the drive shaft 14 is attached to the protruding end of the drive shaft 14 by ball transmission. On the other hand, the other end side of the shaft 11, that is, the briquette delivery side, has its outer peripheral surface covered with rollers 17, 17.
The compression roll 5,
5... are biased and supported via springs 20, 20... in a direction opposite to the direction in which they are twisted by the frictional force with the briquette. When the grass pushed into the forming chamber 6 is compressed by the compression roll 5 rotating in the direction of the arrow A, a frictional force is generated between the grass and the briquette, and this reaction force causes the compression rolls 5, 5, . . . Try to twist in direction B. Furthermore, when the frictional force exceeds a predetermined value, the bearing disk 18 rotates against the bias of the spring 20, and the end of the compression roll 5a near the guide plate 8 moves forward to the position indicated by the two-dot chain line 5a'. The briquettes are fed out by the feeding action of the compression roll 5 which moves upward and is twisted.

The guide plate 8 has an end portion 8a cut diagonally so that the side in the extrusion direction of the briquettes protrudes, and is bent in an inclined shape so as to gradually become higher by the amount of movement caused by the twisting of the compression roll 5. There is.
Reference numeral 21 designates a stopper that restricts the range of rotation of the bearing disc 18, 22 a winding device for winding up the grass at the start of molding, 23 a guide tube for sending out the briquettes, and 24 a cutting device.

FIG. 6 shows the guide plate 8 formed by bending the guide plate 8 gradually upward from the middle of the rotation trajectory of the tip of the pick-up part 4, and FIG. It is formed so as to be inclined gradually upward from the vicinity. In addition, information board 8
The leading end 8a may be formed to be elastically deformable so that the end of the compression roll 5 that is twisted and moves upward and forward comes into contact with the leading end 8a and lifts the guide plate 8.

In the above configuration, when the roll forming machine 2 is towed by the tractor 1 and made to run along the windrow, the grass picked up by the pick-up section 4 is transported rearward by the front packer 9, and then by the rear packer 10. The material is pushed into the molding chamber 6 and compressed by rotating compression rolls 5, 5, . . . . When the grass is compressed hard and the frictional force acting on the compression rolls 5, 5... increases, the bearing disk 18 rotates,
Compression rolls 5, 5 in a twisted mounting position...
By the feeding action, the briquettes are sent out from the molding chamber 6 toward the guide tube 23, cut into predetermined dimensions by the cutting device 24, and discharged onto the ground. Even if the bearing disk 18 rotates and the end of the compression roll 5a near the guide plate 8 moves forward and upward, the end 8a of the guide plate 8 will be raised by the amount of movement of the compression roll 5a. Since the compression roll 5a is bent at the guide plate 8, there is no need to provide a required gap between the guide plate 8 and the compression roll 5a as in the conventional case.
There is no risk of grass falling through the gap and causing loss. Further, the supply port a through which grass is supplied to the forming chamber 6 is made smaller toward the extrusion side due to the bent end 8a of the guide plate 8, and the grass is fed to the end 8a of the guide plate 8 at a higher position. Since the grass is guided in the opposite direction to the extrusion side, excess grass is not supplied to the extrusion side where density tends to increase, and briquettes with uniform density can always be formed. End portion 8a of guide plate 8
If the rollers are formed to be elastically deformable, it is convenient because the amount of grass fed to the delivery side can be regulated in accordance with the amount of movement when the compression rolls 5, 5... are twisted, that is, the delivery speed of the briquettes. The one shown in FIG. 6 can regulate the amount of grass fed to the forming chamber 6 from the pick-up section 4, and the one shown in FIG. 7 can prevent grass from stagnating on the guide plate 8. It is something that can be done.

Effects of the Invention In short, the present invention allows grass collected at the pick-up section at the front of the machine to be guided by a guide plate provided behind the pick-up section to a forming chamber formed by compression rolls at the rear of the machine. In a roll forming machine in which briquettes compression-molded in a chamber are discharged by the feeding action of a compression roll in a twisted mounting position, the end edge of the guide plate on the compression roll side is set so as to Since the briquettes are formed in a high slanted shape, even if the briquette is sent out with the compression roll in a twisted mounting position, the compression roll can be guided without creating any particular gap between the guide plate and the compression roll. The grass on the guide plate can be reliably supplied to the molding chamber without coming into contact with the plate. Moreover, the guide plate, which is higher in the briquette delivery direction, makes the supply port for feeding grass into the forming chamber smaller as the delivery side increases, and also guides and guides the grass to be fed in the opposite direction to the delivery side along the slope. Therefore, excess grass is not supplied to the delivery side, where the density of the briquettes tends to be high, and unreasonable force is not applied to the compression rolls, making it possible to always form high-quality briquettes with uniform density. This has extremely useful practical effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the roll forming machine according to the present invention, in which FIG. 1 is a side view showing the working state, FIG. 2 is a plan view of the same, FIG. 3 is a side view, and FIG. is a plan view, FIG. 5 is a side view of the main part, and FIGS. 6 and 7 are side views of the main part showing other embodiments. In the figure, 4... pick-up section, 5... compression roll, 6... molding chamber, 8... guide plate.

Claims (1)

[Scope of utility model registration request] Grass collected from the pick-up area at the front of the aircraft,
A guide plate installed at the rear of the pick-up section guides the machine to the molding chamber formed by compression rolls at the rear of the machine.
In the roll forming machine, the briquettes compression-molded in the molding chamber are discharged by the feeding action of the compression roll in a twisted mounting position. A roll forming machine characterized by forming an inclined shape that becomes higher in the direction.