JP4680115B2 - Forming device in roll baler - Google Patents

Description

  The present invention relates to a roll baler for forming shredded grass into a roll bale, and a molding apparatus for mounting the shredded grass in a molding chamber between a pair of tight chains that rotate endlessly symmetrically in pairs. Further, the present invention relates to an improvement on a tight chain type roll baler in which a large number of tight bars are arranged in parallel.

  Tight chain type roll baler can be described as a towed roll baler that travels with the airframe connected to the tractor. As shown in FIGS. 1 to 3, the tight baler roll baler is inserted into a hopper b mounted on the airframe a. The shredded pastures are sequentially discharged from the discharge port at the bottom of the hopper b by the agitator c in the hopper b, and are connected in a belt-like manner by the transport conveyor d mounted below the hopper b. Then, it is sequentially fed into a molding chamber e to be mounted on and formed into a roll-shaped bale by a molding device f equipped in the molding chamber e.

  As shown in FIG. 3, the forming apparatus f has sprockets 1 and guides or rolling wheels 2 that are axially supported in parallel on the outer side portions of the left and right side plates of the forming chamber e. A semicircular inner rail 3 is fixedly mounted on the inner side of the sprocket 1 and an outer peripheral side of a guide or roller 2 on which an endless tight chain 4 is axially supported in parallel. First, the sprocket 1 positioned above the conveyor d that forms the upper lip of the receiving port of the molding chamber e is sequentially wound clockwise, and the tension sprocket 1 positioned below the conveyor c is terminated. Therefore, it is folded inward, wrapped around the outer peripheral surface of the inner rail 3, and wound around the endless so as to return to the sprocket 1 as the starting end. Tight chains 4 and 4 that rotate around the dress are stretched so as to be symmetrical in a pair on the left and right, and a receiving port g of the molding chamber e is formed between the sprocket 1 as the start end and the sprocket 1 as the end. To do. Each tight chain 4 supports a tension sprocket 1 positioned below the conveyer d so as to be movable in the front-rear direction, and a gas spring h that pushes it forward. The tension chain 5 is tensioned to a certain degree of tension, and a number of tight bars 5 are arranged in parallel in a saw-tooth shape in the rotational direction of the tight chain 4 between the two tight chains 4 and 4 opposed to each other on the left and right. Mount it. The tight bars 5 are positioned on the outer surface side when the tight chain 4 rotates on the outer peripheral rotation side 4a, and when the chain 4 is folded back on the inner peripheral side to rotate the inner peripheral rotation side 4b. Assemble the chain link of the tight chain 4 so that it is positioned on the inner surface side by turning over.

  As a result, the tight chain 4 is driven by the driving device and rotates in the direction indicated by the double-lined arrow in the figure, so that the grass conveyed by the conveyor d is positioned above the conveyor d. Receiving from the receiving port g formed between the sprocket 1 and the sprocket 1b located below, it is wound in a roll shape, its diameter is sequentially expanded, and the peripheral surface of the roll bale R formed thereby is When it comes into pressure contact with the tight bar 5 laid over the tight chain 4 rotating in the molding chamber e along the outer peripheral surface of the inner rail 3 and pushes it out in the outer peripheral direction so as to float up from the inner rail 3, The tension sprocket 1 located below the conveyor d is displaced in a direction to compress and contract the gas spring h against the bias of the gas spring h. To become a tight chain 4, so as to retain the tensioning pressure set by the pressure of the gas spring h, so continue to tighten forming wound roll bale R to the pressure. Then, the roll veil R to be formed is detected as having been formed by a separate sensing device that the forming pressure has reached a set pressure set by the pressure of the gas spring h. , The tween net is unwound and packed, and then the rear chamber is opened and released.

  From this, for example, if the inner diameter of the molding chamber e formed on the inner peripheral side of the inner rail 3 is 600 mm, the roll bale R to be molded is molded as having a diameter of 600 mm. A is a fixed mold for forming only a constant-diameter roll bale having a predetermined diameter.

  By the way, the roll bale R to be formed usually has three types: a small diameter roll having a diameter of about 600 mm, a medium diameter roll having a diameter of about 800 mm, and a large diameter roll having a diameter of about 1000 mm. The roll baler A for forming the roll bale is formed in a separate machine as a roll bale of each diameter.

  The bale formed into a roll is usually wrapped in a film and stored in a storage building to ferment and mature the pastures, which are taken out daily and carried to a pasture for feeding livestock. When the number of livestock on the ranch is large, using a large-diameter roll having a diameter of about 1000 mm is suitable for daily feeding.

  However, this large-diameter roll cannot be molded unless it is based on a roll baler made to mold it. If you want to use a large-diameter roll and a normal-sized small-diameter roll during feeding, you must use two roll balers: a machine body that forms a large-diameter roll and a machine body that forms a small-diameter roll. Become. This is because there is a demand for a variable-type roll baler that can change the diameter of the roll bale to be formed.

  In order to make the diameter of the roll bale to be variable in the roll baler, in the apparatus shown in FIG. 1, as shown in FIG. The sprocket 1 provided at the front end on the lower end side so as to be movable forward and backward, and extruding forward by the gas spring h, increases the movable range of the front and rear, and lengthens the stroke of the gas spring h. Although it is possible to take a large sag corresponding to the change in the diameter of the roll bale, the stroke of the sprocket for tension required for the sag removal forms a small diameter roll having a diameter of 600 mm. When a large-diameter roll having a diameter of 1000 mm is formed, the sprocket 1 is pivotally supported by a considerable length exceeding 600 mm. 'I must protrude forward long lower side of the rear chamber e' rear chamber e trouble for disabling the opening and closing rotation of arise.

Further, in order to form a large-diameter roll, a place prepared in the forming chamber e is provided with a receiving port g on the front side that forms the receiving port g of the forming chamber e and the bottom side that supports the roll bale R. Since the bottom surface is fixedly mounted on the machine frame of the molding chamber e, the outer periphery of the tight chain 4 can be rotated by being formed above and behind the inner rail 3. There is a problem that the shaft support of the sprocket 1... The wheel 2 that supports the side 4 a becomes difficult.
JP 2006-14657 A

  The problem to be solved in the present invention is that there are two tight chains that are respectively stretched on the left and right wall surfaces of the molding chamber so as to be symmetrical in a pair on the left and right sides, and between the two tight chains. In a roll baler in which a forming device composed of a number of tight bars is installed in the forming chamber, the slack of the tight chain is increased corresponding to the change in the diameter of the roll to be formed, and the diameter is different. Rotating operation of the rear chamber of the molding chamber in which the tension of the sprocket of the tight chain and the tension of the wheel 2 and the tension of the roll balers that enable the molding of the roll bale can be freely opened and closed. Can be used as a state of forming the upper portion of the inner rail above and behind the inner rail when forming a large-diameter roll. It is to to.

  A tight chain 4 that rotates endlessly along each side wall of the molding chamber e is stretched so as to be opposed to each other in a pair, and a number of tight bars are interposed between the tight chains 4 and 4. In a roll baler forming apparatus f that is mounted in parallel with the turning direction of the tight chain 4, 5... The tension sprocket 1a for supporting the outer peripheral rotation side 4a of the left and right tight chains 4 from the inner surface side is disposed obliquely upward in the side view on the left and right side portions of the upper portion on the rear end side of the rear chamber e '. Gas springs h that are axially supported so as to be displaceable toward each other and that are pushed obliquely upward and rearward are connected to them, and the tension splines are disposed at lower portions on the rear end sides of the left and right sides of the rear chamber e ′. The lower sprocket 1b is pivotally supported at a position that is substantially vertically symmetrical with the ket 1a in a side view, and on the rear side of the rear chamber e 'between this and the tension sprocket 1a, the outer peripheral rotation side 4a of the tight chain 4 The rear chain guide L that supports the outer surface from the outer surface side is formed on the inner radius rail having a large curvature and is fixedly installed, and the tension sprocket 1a is resistant to the pushing force of the gas spring h in the pushing direction. The present invention proposes a forming apparatus for a roll baler characterized in that a restricting member k for restricting the displacement is set to a desired position, and the restricting position is connected in a variable manner.

At the same time, a lower sprocket 1b that is pivotally supported below the rear portion of the rear chamber e ′ so as to face the tension sprocket 1a vertically is pivotally supported so as to be displaced obliquely rearwardly downward. A restricting member that connects a gas spring h that is biased to push downward and obliquely downward, and that restricts the displacement of the lower sprocket 1b in a direction against the pushing force in the pushing direction by the gas spring h to a desired position. The forming device in the roll baler according to claim 1, wherein k is installed in a manner that its restriction position can be changed freely.
The inner rail 3 is provided on the inner peripheral side by folding back to the inner side through the outer peripheral rotation side 4a for rotating the outer peripheral side of the sprocket 1 and the wheels / guides 2 arranged annularly on the left and right side walls of the molding chamber e. The tight chain 4 that rotates endlessly so as to return to the outer periphery rotation side 4a after passing through the inner periphery rotation side 4b that rotates the outer periphery is stretched so as to be opposed to each other in the left and right directions. In a roll baler forming apparatus f in which a large number of tight bars 5 are arranged in parallel in the rotational direction of the tight chain 4, they can be freely opened and rotated rearward and upward about the rotational fulcrum P of the molding chamber e. The tension sprocket 1a for supporting the outer peripheral rotation sides 4a of the right and left tight chains 4 and 4 from the inner surface side on the left and right side portions of the upper portion of the rear end side of the rear chamber e ' Slant upward and backward A gas spring h that is axially supported in a freely displaceable manner and that is pushed obliquely upward and rearward is connected to the guide rod 6 that is parallel to the expansion and contraction direction of the gas spring h. Further, a regulating member k that slidably engages with an abutting member 64 provided on a sprocket fitting 63 that pivotally supports the tension sprocket 1a and is displaced together with the sprocket 1a to stop the displacement of the tension sprocket 1a is slidably fitted. The guide rod 6 is fixed to a desired position so as to be selectively changeable, and the guide rod 6 is movably mounted in a direction along the longitudinal direction of the guide rod 6, and a spring is mounted. 72, the gas spring h is pushed out in the extending direction, and a sensing switch for sensing the molding pressure is formed on the front surface of the proximal end of the guide rod 6. A forming device in a roll baler, characterized in that keep disposed Ji S,
The inner rail 3 is provided on the inner peripheral side by folding back to the inner side through the outer peripheral rotation side 4a for rotating the outer peripheral side of the sprocket 1 and the wheels / guides 2 arranged annularly on the left and right side walls of the molding chamber e. The tight chain 4 that rotates endlessly so as to return to the outer peripheral rotating side 4a after passing through the inner peripheral rotating side 4b that rotates the outer periphery is stretched so as to be opposed to each other in the left and right directions. In a roll baler forming apparatus f in which a large number of tight bars 5 are placed in parallel in the rotational direction of the tight chain 4, the rear of the forming chamber e can be freely opened and rotated rearwardly about the rotational fulcrum P. The tension sprocket 1a for supporting the outer peripheral rotation sides 4a of the left and right tight chains 4 and 4 from the inner surface side is obliquely seen from the inner side at the left and right side portions of the upper part of the rear end side of the rear chamber e '. Displacement upward and backward A gas spring h that is pivotally supported freely and is pushed obliquely upward and rearward to each other is connected to each other, and in a side view, on the inner periphery rotating side 4b that rotates the outer periphery of the inner rail 3 of the tight chains 4 and 4. Auxiliary side plates 8 are slidably mounted obliquely rearward and upward on both left and right side portions of the molding chamber e formed inside, and the upper edge side of the auxiliary side plate 8 is the inner surface side of the inner peripheral rotation side 4b of the tight chain 4. The gas spring h that pushes against the auxiliary side plate 8 and pushes it obliquely rearward and upward is connected to follow the expansion of the diameter of the roll bale R to be molded, so that the auxiliary side plate 8 protrudes obliquely upward and rearward. A forming device in a roll baler characterized by
Is to raise.

  The forming apparatus using the roll baler according to the present invention means that when the diameter of the roll bale to be formed is increased without causing a support in the rotation operation of the rear chamber that allows the opening and closing of the forming chamber to be freely opened and closed. A place for receiving the extended portion can be formed in a portion extending from the rear side of the inner rail 3 to the upper side inside the outer peripheral rotation side 4a of the tight chain 4 in a side view in the machine casing of the molding chamber. The chain slack is increased in response to the change in the diameter of the forming roll, and a desired tension pressure can be applied thereto. Therefore, a variable-diameter roll baler in which the diameter of the roll bale to be formed is variable is provided. The structure of the constant-diameter roll baler can be used to make the structure.

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

  4, 5 and 6 show a plan view, a side view and a rear view of a roll baler A for carrying out the present invention, respectively.

  The roll baler A is an agitator c for installing the shredded grass put in the hopper b mounted on the machine body a from the discharge port at the bottom of the hopper b. A molding apparatus which is transported rearward by a transport conveyor d composed of d ′ and a rear conveyor d ″, sent to a molding chamber e mounted on the rear end of the machine body a, and installed in the molding chamber e. When the roll R is formed by f and the predetermined forming pressure is reached, the rear chamber e ′ on the second half side of the forming chamber e is rotated rearward and upward about the rotation fulcrum P, and the forming is completed. Although it is a shredded roll baler that discharges R to the rear of the fuselage a, in this example, the coupler provided on the front end side of the fuselage a is coupled to a coupling hitch mounted on the rear part of the vehicle body of the tractor, The input shaft mounted on the machine a By being connected to the PTO shaft installed on the rear surface of the vehicle body, it is configured to be a towed type that travels by the tractor and drives each operating unit mounted on the body a by the prime mover on the tractor side. .

  The molding chamber e mounted on the rear part of the machine body a is connected to the front chamber e "fixedly mounted on the machine body a, and to the center of the rotation fulcrum P so as to be openable and closable rearward and upward. It is of a normal form composed of a rear chamber e ′.

  As shown in FIG. 7, the molding apparatus f installed in the machine frame of the molding chamber e is provided with sprockets 1 and wheels or chain rails on the inner surfaces of the left and right side walls of the machine frame of the molding chamber e. In the side view, the guide 2 is arranged so as to be arranged in parallel in an annular shape, and an inner rail formed in an arc shape is provided inside the sprocket 1 and the wheels / guides 2 arranged in parallel in the annular shape. 3, and tight chain 4 is sprinkled from the sprocket 1 located above the conveyer d to the outer periphery side of the sprockets, wheels, and guides arranged in a ring, and below the conveyer d. When it comes to the sprocket 1 that is positioned, it is folded back to the inner circumference side, passed through the outer circumference side of the arc-shaped inner rail 3, and hung around to return to the sprocket 1 above the conveyor c. A large number of tight bars 5 are connected between these tight chains 4 and 4 in parallel in the rotational direction of the tight chain 4, assembled into a molding apparatus f, and positioned above the conveyor d. The sprocket 1 that forms the upper lip of the receiving port g of the molding chamber e is connected to the drive shaft via the transmission mechanism and rotated so that the tight chain 4 is indicated by the double line arrow in FIG. For forming a roll bale R by forming the roll bale R by cutting the pasted grass that is turned in the direction and sent by the conveyor d with the forming device in the conventional roll baler, You may comprise similarly.

  However, the tension means for slackening the tight chains 4 and 4 of the molding apparatus f configured as described above and mounted in the machine frame of the molding chamber e has a configuration unique to the present invention.

  The sprockets 1 arranged in parallel with the ring, the outer peripheral rotating side 4a that rotates the outer peripheral side of the wheel or guide 2, and the inner peripheral rotating side 4b that turns back and rotates the outer peripheral side of the inner rail 3 are endless. The tension of the tight chain 4 that pivots to the rear is that the front chamber e "of the molding chamber e that is fixedly mounted on the airframe a is opened and closed rearward and upwardly as shown in FIG. The upper part of the machine frame of the chamber e ′ extends rearward, and a tension sprocket 1a that supports the upper rear part of the outer peripheral rotation side 4a of the tight chain 4 is arranged here and displaced obliquely upward and rearward. The gas spring h is linked to the upper end of the tension sprocket 1a so that the tension sprocket 1a is pushed out obliquely upward and rearwardly. of Coordinated lower sprocket 1b so as to face vertically and emissions Deployment sprocket 1a, fixed shaft supported on the machine frame.

  In the rear part of the machine frame of the rear chamber e ′ between the upper and lower sides of the tension sprocket 1a pivotally supported on the rear upper part of the rear chamber e ′ and the lower sprocket 1b pivoted on the lower part of the rear part, the outer periphery of the tight chain 4 is provided. A rear chain guide L that abuts from the rear surface side (outer surface side) and guides the tight chain 4 to a portion of the moving side 4a that rotates between the upper and lower sprockets 1a and 1b, As shown in FIG. 8, the tight bar 5 laid in parallel with the guided tight chain 4 has a center of curvature on the rear side so that a slight gap exists between adjacent tight bars 5. It is formed and arranged on an arc-shaped rail of inner radius having a large curvature and fixedly mounted on the machine frame of the rear chamber e ′.

  Thereby, the rear side of the outer periphery rotation side 4a of the tight chain 4 is restricted and rotated by the upper tension sprocket 1a, the lower sprocket 1b, and the rear chain guide L, so that it is fixed to the rear chamber e ′ in a side view. As shown in FIGS. 7 and 9, a place for accommodating the expanded portion of the roll bale when forming a large-diameter roll bale is formed in the range extending from the rear to the upper side of the arc-shaped inner rail 3 provided in FIG. In this state, the large-diameter roll bale can be formed by extruding the rear upper tension sprocket 1a, whose shaft support position is movable, obliquely rearward and upward by the gas spring h. The slack that has taken a large amount is absorbed and removed so that a predetermined tension pressure is maintained.

  At this time, when a large amount of slack is taken, the lower lower part of the rear lower part which is coordinated to the lower end side of the rear part of the machine frame of the rear chamber e 'so as to face the tension sprocket 1a in the upper part of the rear part and vertically supports the machine frame. As shown in FIGS. 7 and 9, the sprocket 1b is freely displaceable in the direction in which the pivot support position of the sprocket 1b expands the outer peripheral rotation side 4a of the tight chain 4 outward. The gas spring h may be connected and pushed out to take up slack in conjunction with the movement of the tension sprocket 1a at the upper rear portion.

  At this time, the lower lower sprocket 1b at the rear lower part is displaceable obliquely backward and downward, and causes the gas spring h to be pushed obliquely backward and downward. Further, the spring force set for the gas spring h is weaker than the spring force set for the gas spring h to be applied to the tension sprocket 1a at the upper rear portion, and is slackened by the operating force due to the spring force of the upper and lower gas springs h. Make sure that the adjustments are made in order.

  The diameter of the roll bale to be formed is controlled at a desired position with respect to the tension sprocket 1a that takes the slack of the tight chains 4 and 4 in the direction opposite to the direction pushed by the bias of the gas spring h. When the tension sprocket 1a is stopped, the tight chains 4 and 4 are put in a tension state, and the diameter of the roll to be molded is set in that state. The position can be freely changed to a desired position in the reverse direction, and the diameter of the roll to be formed is changed by the change.

  In this embodiment, the restricting member k is a gas spring that acts on tension sprockets 1a and 1a that are pivotally supported at two positions on the left and right above the rear part of the machine frame of the rear chamber e '. As shown in FIG. 11 to FIG. 18, a guide rod 6 parallel to the expansion / contraction operation direction is juxtaposed at a position adjacent to h, and the guide rod 6 is inserted into the regulating member k so as to be freely inserted and removed, and is inserted by a spring. The stopper pin 61 biased to the guide rod 6 is selectively inserted into the guide rod 6 with respect to a plurality of stopper pin holes 62 which are opened at a desired interval in the longitudinal direction thereof, whereby the regulating member k is guided. The rod 6 is connected and fixed to a desired position selected, and the tension sprocket 1a is gasified by tension by the forming pressure of the roll bale R formed by the tight chain 4. The abutting member 64 provided on the sprocket fitting 63 that pivotally supports the tension sprocket 1a when it moves in the direction of pulling in the direction of the arrow in FIG. The movement of the tension sprocket 1a is stopped at that position by colliding with the member k, and the tight chain 4 or 4 is tensioned at the state position, and the diameter of the roll bale R to be formed is set to the tight chain 4 at that state. The gas spring h can be set by setting the restricting member k that restricts the movement of the tension sprocket 1a to the stopper pin 61 and the stopper pin hole 62. Roll bale R roll to be formed by adjusting displacement along the direction of pushing out tension sprocket 1a Changes are to be performed.

  At this time, the molding pressure of the roll bale R to be molded is detected by mounting the guide rod 6 on the machine frame of the rear chamber e ′ so as to slide freely along the direction in which the gas spring h expands and contracts. As shown in FIG. 15, the front end side of the link rod 7 that is pivotally supported to rotate around the fulcrum 70 is connected via a pin 71, and the link rod 7 is connected to the tail end side of the link rod 7. In FIG. 15, a spring 72 is urged to rotate clockwise around the fulcrum 70, thereby urging the guide rod 6 so as to push it in the extending direction of the gas spring h. The pivot rod 7 that pivots about the fulcrum 70 by 72 has a pivot range provided on the case 73 provided on the casing 73 of the rear chamber e ′, and a regulating bracket 74 provided on the link rod 7 so as to face this. For the collision piece 75 Ri, previously restricted to the range up to the abutment piece 75 abuts the receiving surface 740 of the regulating bracket 74.

  On the front side of the base end face of the guide rod 6, the sensing switch S is installed with a small gap G between the operating piece s at the front end thereof and the base end face of the guide rod 6. The tension sprocket 1a moves in the direction of compressing the gas spring h by the forming pressure of the roll bale R to be formed, and the abutting member 64 provided on the bracket (sprocket fitting 63) supporting the sprocket 1a. However, the guide rod 6 that is integrally connected to the regulating member k by the stopper pin 61 is urged by the spring 72 by being in contact with the regulating member k inserted in the guide rod 6 and further pushed. As a result, the rear end surface of the guide rod 6 passes through the gap G and abuts against the operating piece s of the sensing switch S to be pushed in. By actuating the, it is then to be performed sensing the set molding pressure. The sensing switch S may be provided so as to face the base end face of one of the guide rods 6 and 6 provided on the left and right as a pair.

  The molding pressure set by the sensing switch S is detected by displacing the restricting member k to a desired position on the guide rod 6 by fitting the stopper pin 61 and the stopper pin hole 62 to form a roll bale R to be molded. It operates in the same way when the roll diameter is changed.

  Then, the sensing operation of the sensing switch S senses that the set molding pressure has been reached, so that the molding of the roll is completed, and the operation of the roll baler A stops the supply of grass by the conveyor d. Then, the operation moves to the packing operation by the supply of the twain net, and when it is completed, the packed roll bale R is released by the opening rotation of the rear chamber e ′.

  20 to FIG. 26, when the regulating member k is set at a position close to the proximal end side of the guide rod 6 to form the large-diameter roll bale R, the rear side of the arc-shaped inner rail 3 is seen in a side view. The configuration of the auxiliary side plate 8 is shown to be positioned on the left and right side surfaces of the internal space in the molding chamber e that extends upward.

  As shown in FIG. 19, the auxiliary side plate 8 is a half-moon-like shape that occupies an upper part obliquely rearward in the lumen of the forming chamber e formed inside the inner rail 3 when the small-diameter roll bale R is formed. As shown in FIG. 21, a side plate guide 80 which is formed on the side plate and extends obliquely rearward and upward is attached as shown in FIG. 21, FIG. 22 and FIG. 25, a case guide 90 and a case guide 91 installed on the left and right side plates 9 of the machine frame of the molding chamber e are slidably assembled obliquely upward and rearward. A gas spring h that urges the auxiliary side plate 8 so as to push the auxiliary side plate 8 diagonally backward and upward is bridged between the side plate 9 of the machine frame e and the diameter of the roll to be molded is as shown in FIG. The inner diameter of the tight chain 4 When the moving side 4b expands in diameter, the auxiliary side plate 8 whose upper edge is in contact with the side 4b follows the tight chain 4 with the spring pressure of the gas spring h, and extends the side plate 9 of the molding chamber e obliquely rearward and upward. Are sequentially pushed out and positioned on the side surface of the molding chamber e that expands. As a result, the end surface of the roll bale to be molded to have a large diameter and the corners between the outer periphery and the end surface are neatly formed.

It is a side view of the conventional roll baler. It is a side view of the state which opened and rotated the rear chamber of the molding room same as the above. It is a side view of the latter half part same as the above. It is a top view of the roll baler which implements this invention. It is a side view of a roll baler same as the above. It is a rear view of a roll baler same as the above. It is a vertical side view of the forming chamber of the same roll baler. It is a side view of the rear part chain rail installed in the molding chamber same as the above, and the tight chain guided by it. It is explanatory drawing of an action | operation when shape | molding the large diameter roll of a molding chamber same as the above. It is a vertical side view of the state which opened and rotated the rear chamber of the molding room same as the above. It is a side view of the state which set the roll diameter of the diameter change means of the forming roll installed in the forming chamber same as the above to the small diameter. It is an enlarged side view of the part of a diameter change means same as the above. It is a side view of the state which set the roll diameter of the forming roll of the diameter change means same as the above to a large diameter. It is a top view of a diameter change means same as the above. It is a side view of the part connected with the sensing switch of the molding pressure of a diameter change means same as the above. It is a bottom view of a diameter change means same as the above. It is a front view of a diameter change means same as the above. It is a side view of the part connected with the sensing switch in the state which set the roll diameter of the forming roll to the large diameter of the diameter change means same as the above. It is a side view of the action | operation mechanism part of the auxiliary side plate of a molding chamber same as the above. It is a front view of an operation mechanism part same as the above. It is a side view of the auxiliary side plate same as the above. It is a bottom view of the auxiliary side plate same as the above. It is a rear view of the auxiliary side plate same as the above. It is a side view of the state where the auxiliary side plate same as the above was pushed rearward and upward. It is a front view at the time of the same state of the auxiliary side plate same as the above.

Explanation of symbols

  A ... roll baler, G ... gap, L ... rear chain guide, P ... rotation fulcrum, R ... roll bale, S ... sensing switch, a ... airframe, b ... hopper, c ... agitator, d ... conveyor, d '... Front conveyor, d "... rear conveyor, e ... molding chamber, e '... rear chamber, e" ... front chamber, f ... molding device, g ... receiving port, h ... gas spring, k ... regulating member, s ... operation 1 ... sprocket 1a ... tension sprocket 1b ... lower sprocket 2 ... guide / roller 3 ... inner rail 4 ... tight chain 4a ... outer rotation side 4b ... inner rotation side 5 ... tight bar , 6 ... guide rod, 61 ... stopper pin, 62 ... stopper pin hole, 63 ... sprocket fitting, 64 ... abutting member, 7 ... link rod, 70 ... fulcrum, 71 ... pin, 72 ... spring, 73 ... case, 74 ... Control bracket 740 ... receiving surface, 75 ... abutment piece, 8 ... auxiliary side plate 80 ... side plate guides, 9 ... shroud, 90 ... case guide, 91 ... case guide.

Claims (7)

  The inner rail 3 is provided on the inner peripheral side by folding back to the inner side through the outer peripheral rotation side 4a for rotating the outer peripheral side of the sprocket 1 and the wheels / guides 2 arranged annularly on the left and right side walls of the molding chamber e. The tight chain 4 that rotates endlessly so as to return to the outer periphery rotation side 4a after passing through the inner periphery rotation side 4b that rotates the outer periphery is stretched so as to be opposed to each other in the left and right directions. In a roll baler forming apparatus f in which a large number of tight bars 5 are arranged in parallel in the rotational direction of the tight chain 4, they can be freely opened and rotated rearward and upward about the rotational fulcrum P of the molding chamber e. The tension sprocket 1a for supporting the outer peripheral rotation sides 4a of the right and left tight chains 4 and 4 from the inner surface side on the left and right side portions of the upper portion of the rear end side of the rear chamber e ' Diagonally upward and rearward A gas spring h that is pivotally supported and is pushed obliquely upward and rearward is connected to each of them, and the outer periphery of the tight chain 4 is rotated in the lower part of the rear end side of the left and right sides of the rear chamber e ′. The lower sprocket 1b that supports the side 4a from the inner surface side is pivotally supported, and the outer peripheral rotation side 4a of the tight chain 4 · 4 from the outer surface side on the rear side of the rear chamber e ′ between this and the tension sprocket 1a A rear chain guide L that is supported and guided is installed, and the tension sprocket 1a is provided with a regulating member k that regulates the displacement in the direction against the urging in the pushing direction by the gas spring h to a desired position. A forming apparatus for a roll baler, which is provided in a linked manner and is capable of changing a restriction position of the restriction member k.   A lower sprocket 1b that is pivotally supported below the rear portion of the rear chamber e 'so as to face the tension sprocket 1a vertically is pivotally supported so as to be able to be displaced obliquely backward and downward, and is pushed obliquely backward and downward to the lower sprocket 1b. The urging gas spring h is linked, and the lower sprocket 1b is linked to a regulating member k that regulates the displacement in a direction against the urging in the pushing direction by the gas spring h to a predetermined position. 2. The forming apparatus for a roll baler according to claim 1, wherein the restriction position of the restriction member k can be changed.   The outer peripheral rotation side 4a of the tight chains 4 and 4 is supported from the outer surface side on the rear side of the rear chamber e ′ that can be freely opened and rotated rearward and upward about the rotation fulcrum P of the molding chamber e. 2. The forming apparatus for a roll baler according to claim 1, wherein the rear chain guide L to be installed is formed in an arc-shaped rail having a large curvature with the center of curvature located on the rear surface side.   The tension sprocket 1a is pivotally supported on the left and right side portions of the upper part of the rear part of the rear chamber e 'of the molding chamber e so as to be displaceable obliquely rearward and upward, and is urged to be pushed obliquely rearward and upward by the gas spring h. The lower sprocket 1b, which is positioned so as to be opposed to the tension sprocket 1a in the upper and lower sides of the lower part of the rear part of the rear part of the rear chamber e ', is pivotally supported so as to be displaceable obliquely backward and downward. Then, the gas spring h is urged to be pushed diagonally backward and downward, and the spring force of the gas spring h is set to be weaker than the spring force of the gas spring h linked to the tension sprocket 1a. The forming apparatus for a roll baler according to claim 1.   Next to the gas spring h that urges the tension sprocket 1a, which is pivotally supported to be displaced obliquely rearward and upward, on both left and right side portions of the upper part of the rear portion of the rear chamber e 'of the molding chamber e so as to push it obliquely rearward and upward. A guide rod 6 parallel to the expansion / contraction direction of the gas spring h is provided at a position, and an abutting member 64 provided on a sprocket fitting 63 that pivotally supports the tension sprocket 1a on the guide rod 6 and is displaced together with the sprocket 1a. A restricting member k that stops the displacement of the tension sprocket 1 a by abutting with the stopper pin is slidably fitted, and the restricting member k is provided at a plurality of positions in the longitudinal direction of the stopper pin 61 and the guide rod 6 provided on the restricting member k. Selective fitting with holes 62 and 62 allows adjustment of displacement in the longitudinal direction of the guide rod 6 Constant to, molding apparatus in roll baler according to claim 1, characterized in that so as to change the diameter of the roll bale to be shaped by changing the fixing position of the regulating member k.   The inner rail 3 is provided on the inner peripheral side by folding back to the inner side through the outer peripheral rotation side 4a for rotating the outer peripheral side of the sprocket 1 and the wheels / guides 2 arranged annularly on the left and right side walls of the molding chamber e. The tight chain 4 that rotates endlessly so as to return to the outer periphery rotation side 4a after passing through the inner periphery rotation side 4b that rotates the outer periphery is stretched so as to be opposed to each other in the left and right directions. In a roll baler forming apparatus f in which a large number of tight bars 5 are arranged in parallel in the rotational direction of the tight chain 4, they can be freely opened and rotated rearward and upward about the rotational fulcrum P of the molding chamber e. The tension sprocket 1a for supporting the outer peripheral rotation sides 4a of the right and left tight chains 4 and 4 from the inner surface side on the left and right side portions of the upper portion of the rear end side of the rear chamber e ' Diagonally upward and rearward A gas spring h that is axially supported in a freely displaceable manner and that is pushed obliquely upward and rearward is connected to the guide rod 6 that is parallel to the expansion and contraction direction of the gas spring h. Further, a regulating member k that slidably engages with an abutting member 64 provided on a sprocket fitting 63 that pivotally supports the tension sprocket 1a and is displaced together with the sprocket 1a to stop the displacement of the tension sprocket 1a is slidably fitted. The guide rod 6 is fixed to a desired position so as to be selectively changeable, and the guide rod 6 is movably mounted in a direction along the longitudinal direction of the guide rod 6, and a spring is mounted. 72, the gas spring h is pushed out in the extending direction, and the sensing rod for detecting the molding pressure is formed on the front surface of the proximal end of the guide rod 6. Molding apparatus in roll baler, characterized in that keep disposed pitch S.   The inner rail 3 is provided on the inner peripheral side by folding back to the inner side through the outer peripheral rotation side 4a for rotating the outer peripheral side of the sprocket 1 and the wheels / guides 2 arranged annularly on the left and right side walls of the molding chamber e. The tight chain 4 that rotates endlessly so as to return to the outer peripheral rotating side 4a after passing through the inner peripheral rotating side 4b that rotates the outer periphery is stretched so as to be opposed to each other in the left and right directions. In a roll baler forming apparatus f in which a large number of tight bars 5 are placed in parallel in the rotational direction of the tight chain 4, the rear of the forming chamber e can be freely opened and rotated rearwardly about the rotational fulcrum P. The tension sprocket 1a for supporting the outer peripheral rotation sides 4a of the left and right tight chains 4 and 4 from the inner surface side is obliquely seen from the inner side at the left and right side portions of the upper part of the rear end side of the rear chamber e '. Change upward and backward A gas spring h that is pivotally supported freely and is pushed obliquely upward and rearward to each other is connected to each other, and in a side view, on the inner periphery rotating side 4b that rotates the outer periphery of the inner rail 3 of the tight chains 4 and 4. Auxiliary side plates 8 are slidably mounted obliquely rearward and upward on both left and right side portions of the molding chamber e formed inside, and the upper edge side of the auxiliary side plate 8 is the inner surface side of the inner peripheral rotation side 4b of the tight chain 4. The gas spring h that pushes against the auxiliary side plate 8 and pushes it obliquely rearward and upward is connected to follow the expansion of the diameter of the roll bale R to be molded, so that the auxiliary side plate 8 protrudes obliquely upward and rearward. A forming apparatus for a roll baler, characterized in that

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