JP5032220B2 - Leaf tobacco dry leaf take-off equipment - Google Patents

Description

  The present invention relates to a dry tobacco leaf picking device that allows an operator to safely and easily unload a hanging tool in which dry tobacco leaf is packed from a high place in a drying chamber.

  In the drying operation of leaf tobacco, a large number of freshly harvested leaf tobacco leaves are packed into a hanging tool called a needle rack, and each is suspended on two upper and lower guide rails in a drying chamber, and in accordance with a predetermined drying program. I am trying to dry it. After harvesting, fresh tobacco leaves are very heavy (several tens of kg) when packed in a needle rack, and from the viewpoint of work safety and efficiency, a large lifting device is used to create needles. The rack is suspended in the drying chamber. On the other hand, the dry leaf tobacco dry leaves, the weight of the needle rack in which the leaf tobacco dry leaves are packed is lighter than when suspended, so at present, from the upper and lower guide rails in the drying chamber, Two workers take out the needle racks and transport them to the picking table.

  However, in the conventional drying room, the lower guide rail is only about 70 cm high from the floor surface, and the upper guide rail is about 140 cm above the floor surface, which is easier to unload on the floor surface. It was difficult to take off. For this reason, conventionally, in order to unload from a high place, it has become a complicated work using work steps and stepladders raised from the floor, and the legs are operated while taking off from a high place. There was a risk of stepping off from the step or stepladder, muscle pain due to work at a high place, etc., so the work environment was not good, and improvements were desired.

  From such a background, a guide rail connected to a rail movably laying a suspension for suspending a tobacco leaf in a drying chamber, a support arm that supports the guide rail, and a support arm that rotatably supports the support arm. There is a leaf tobacco unloading device that has a support arm and the support arm that supports the guide rail is rotated by the weight of the suspension when the lifting tool that suspends the leaf tobacco is unloaded from the drying chamber. It has been proposed (see Patent Document 1).

JP 2004-33184 A

  However, there is a problem that the weight of the needle rack in a state where the dry leaf tobacco is packed is different depending on the position of the leaf tobacco. For example, the weight of the needle rack in the state where the dry leaves of the lower leaves are packed is about 11 kg, and the weight of the needle rack in the state where the dry leaves of the middle leaves and the mixed leaves are packed is 12 to 13 kg. Moreover, even if it is the same middle leaf and joint leaf, there may be a weight difference of 2 to 3 kg depending on the size of the leaf.

  For this reason, according to the conventional unloading apparatus, since the change in the weight of the needle rack does not correspond to the change of the weight of the needle rack, the guide rail suddenly descends depending on the needle rack or the guide rail suddenly moves after the needle rack is unloaded. There is a risk that the unloading operation cannot be performed smoothly.

  The present invention has been made in view of the above-mentioned problems, and its purpose is that it can be easily installed at the front opening of the drying chamber and can safely and easily unload hanging tools at high places in the drying chamber. It is another object of the present invention to provide a dry tobacco leaf take-off device that can always safely and easily take off the suspension according to the weight change of the hanging tool caused by filling the leaves in different positions.

In order to solve the above-mentioned problems, a leaf tobacco dry leaf take-off device according to claim 1 according to the present invention comprises:
A gate-type frame positioned with respect to the front opening of the drying chamber, a pair of left and right lifting rails supported on the inner sides of the left and right pillars of the gate-type frame, a balancer installed on the top of the gate-type frame, A pair of left and right rotary damper mechanisms provided between the portal frame and each of the lifting rails;
The balancer includes a wire for suspending the elevating rail, a take-up drum around which the wire is wound, and a hanging tool in which the leaf tobacco dry leaves are packed while applying tensile force to the wire. A spiral spring for transferring from the guide rail in the drying chamber to lower each lifting rail to its unloading position by its own weight, and lifting and returning each lifting rail by unloading the lifting tool, A spring having spring force adjusting means for adjusting a tensile force against the wire at the time of raising and lowering the lifting rail;
The rotary damper mechanism includes a main body installed at an upper part of the portal frame, a link arm having one end connected to a rotation main shaft of the main body and the other end connected to the lifting rail side, and a shaft of the rotation main shaft. A means for generating a braking force around, and a speed adjusting means for adjusting the speed at the time of raising and lowering each lifting rail by adjusting the braking force,
Furthermore, it has a stopper which stops each raising / lowering rail at the connection position with respect to the left and right guide rails in the interior of the drying chamber.

  Move the suspension with a roller in the state where dry tobacco leaves are packed from the left and right guide rails in the drying chamber against the lifting rails that are stopped at the connection position to the left and right guide rails in the drying chamber by the stopper. Then, while the lifting rail on which the hanging tool is transferred is pulled by the tensile force applied to the wire by the spiral spring of the balancer, it is lowered to the unloading position at a predetermined speed by the weight of the lifting tool. After that, when lifting the lifting tool from the lifting rail, the lifting rail is pulled upward by the winding of the wire by the spring force of the spiral spring, but the rising speed is gently suppressed by the braking force of the link arm type rotary damper mechanism. . Thereby, the operator can carry out the unloading work from the lifting rail easily and smoothly. And the raising / lowering rail stops in the original height position, ie, the connection position with respect to the said guide rail, with a stopper.

  As described in the above problem, when there is a change in the weight of the suspension, for example, when unloading a suspension (for example, 15 kg) heavier than the standard weight (for example, 12 to 13 kg), the spring By the force adjusting means, the tensile force of the spiral spring is slightly increased to slightly increase the tensile force of the spiral spring applied to the wire when the lifting rail is lowered, and the lifting rail is adjusted so as not to descend at a speed higher than the above speed. Further, this adjustment prevents the lifting rail from stopping below the unloading position. As the lifting force of the spiral spring increases, the lifting speed of the lifting rail also increases. Therefore, the speed adjustment means of the rotary damper mechanism increases the braking force applied to the rotating main shaft, and the lifting speed of the lifting rail is increased. prevent.

  By using this apparatus, it is possible to carry out unloading work by plane work on the floor without using steps or stepladders, and as a result, labor reduction and safe work are possible. In particular, by having both the spring force adjusting means of the balancer and the speed control means of the link arm type rotary damper mechanism, the elevating speed of the elevating rail corresponds to the change in the weight of the hanging implements stuffed according to the position. The unloading position of the lifting tool can be adjusted so as to be kept constant at all times, so that the unloading operation can always be performed safely and easily.

  The spring force adjusting means includes mechanisms such as a handle, a worm gear, and a ratchet. With these mechanisms, the position of the inner end around the axis of the spiral spring can be varied, and the number of turns and the degree of winding of the spiral spring when the lifting rail is stopped by the stopper at the position connected to the left and right guide rails in the drying chamber. Can be made variable.

  As the link arm type rotary damper mechanism, for example, a known door check (door closer) structure can be adopted. An example of the structure of the rotary damper mechanism is that a rack formed on the side wall of a cylindrical piston housed in the main body meshes with a pinion provided on the main spindle of the main body, and the piston is attached in a direction to close the link arm. A spring is provided, and a fixed amount of oil is sealed in the cylinder, and an oil circulation passage connecting the front chamber and the rear chamber of the piston is provided in the main body. When the lift arm is lowered, the rotation of the rotary spindle accompanying the opening operation of the link arm causes the piston to move and the force is stored in the spring, generating a braking force around the axis of the rotary spindle, and the lowering speed of the lift rail The braking force acts to keep the constant. When the piston moves, the oil moves from one chamber to the other through the oil circulation passage, and when the lifting rail is lifted after the lifting of the lifting tool, the rotation of the rotating spindle in the opposite direction accompanying the closing operation of the link arm and The piston moves in the opposite direction due to the restoring force of the spring, but a constant braking force is generated around the axis of the rotating spindle due to the viscous resistance of the oil, and the lifting of the lifting rail is slowed down.

  The rotary damper mechanism described above is usually provided with an adjusting screw for increasing or decreasing the amount of oil that moves through the oil circulation passage. By turning the adjusting screw from the outside in the forward and reverse directions, the braking force generated around the rotation main shaft can be increased or decreased. The oil using the above-described spring and viscous resistance constitutes a means for generating a braking force around the rotation main shaft.

  According to a second aspect of the present invention, there is provided the leaf tobacco dry leaf take-off device, wherein the portal frame has a balance weight at an end of the base that supports the support column on the side opposite to the side facing the drying chamber. It is characterized by having. By having the balance weight, the center of gravity and the posture of the column and the lifting rail when the leaf tobacco hanging tool is moved from the guide rail in the drying chamber to the lifting rail are further stabilized.

  According to a third aspect of the present invention, there is provided the leaf tobacco dry leaf take-off device according to the present invention, wherein the height adjustment is performed to adjust the height of the connection position of each lifting rail to each of the columns according to the height of the guide rail in the drying chamber. It has the means. By having the height adjusting means in each column, when the height of the guide rail at a high place differs somewhat depending on the drying chamber, the height of the elevating rail can be adjusted and easily aligned.

  According to a fourth aspect of the present invention, there is provided the leaf tobacco dry leaf take-off device according to the present invention, wherein each of the support columns follows the descending of the lifting rail from the connection position with respect to the left and right guide rails in the drying chamber. It is characterized in that it is inclined 2 to 5 degrees toward the front opening of the drying chamber so that the distance from the opening gradually increases. The front opening of the drying chamber is provided with a rubber packing that closes the gap between the opening and the front door during the drying operation. According to the descending of the lifting rail from the connection position with respect to the left and right guide rails in the drying chamber, if the distance between the lifting rail and the front opening of the drying chamber remains zero, the rubber packing when the lifting rail is lowered There is a risk of damaging the rubber packing due to the contact. For this reason, the amount of separation between the elevating rail and the front opening of the drying chamber gradually increases as the elevating rail descends by tilting each support column by 2 to 5 degrees toward the front opening of the drying chamber. It is possible to reliably prevent damage to the rubber packing.

  According to a fifth aspect of the present invention, there is provided the leaf tobacco dry leaf take-off device, wherein the portal frame has a moving means and a fixing means to the floor surface. Since the portal frame has the moving means and the fixing means, the apparatus can be easily moved and installed near the front opening of the drying chamber, or the apparatus can be easily removed from the position.

As described above, according to the leaf tobacco dry leaf take-off device according to the present invention, the operator can use the hanging device in the leaf tobacco dry leaf filling state from a high place in the drying chamber without using a step or a stepladder. You can unload safely and easily.
In addition, it is possible to adjust the lifting speed of the lifting rail and the unloading position so that it is always constant according to the change in the weight of the hanging equipment packed by leaf, so that it can always be safely and easily unloaded. Unloading work can be done.

  Next, an embodiment of a leaf tobacco dry leaf taking-out apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a leaf tobacco dry leaf take-off device, and FIG. 2 is a side view showing a state in which the device is positioned in the vicinity of the front opening of the drying chamber and installed on the floor surface. In these drawings, reference numeral 10 indicates a leaf tobacco dry leaf take-off device.

  First, the leaf tobacco dry leaf take-off device 10 (hereinafter referred to as “the take-off device”) will be described. The device 10 includes a portal frame 20, a lifting rail 30, a balancer 40, and a link arm type rotary damper mechanism 50. It is basically composed of

  The portal frame 20 is positioned in the vicinity of the front opening 61 of the drying chamber 60 and is installed and fixed on the floor G. The base frame 21 and a pair of left and right erected on the upper surface of the base frame 21. It is comprised from the support | pillar 22 and the upper frame 23 provided between the upper ends of both the support | pillars 22. A moving caster (moving means) 24 is provided on the lower surface of the base frame 21, and the base frame 21 is slightly floated at the front and rear ends of the base frame 21, and the portal frame 20 is installed on the floor G. An adjuster bolt (fixing means) 25 for fixing is provided. A balance weight 26 is attached to the front end 21a of the base frame 21 (located on the side opposite to the side facing the front opening 61 of the drying chamber 60).

  Each column 22 has a structure in which a column main body 29 is connected and fixed to a base 27 erected on the upper surface of the base frame 21 by a plurality of height adjusting bolts (height adjusting means) so that the height can be adjusted. ing. A slide rail 29 </ b> A is attached to the inside of the column main body 29. Each strut 22 gradually increases the distance between the lifting rail 30 and the front opening 61 of the drying chamber 60 as the lifting rail 30 descends from the connection position A to the guide rail 62 in the drying chamber 60. Thus, it inclines 2-5 degree | times with respect to the floor surface G toward the front-surface opening part 61 of the drying chamber 60. As shown in FIG.

  Each lifting rail 30 is supported and fixed in a horizontal posture and parallel to each other inside a slider 31 that can slide up and down along the inside of the slide rail 29 </ b> A of each column 22. The groove 30a of each elevating rail 30 has a needle rack (hereinafter referred to as a leaf rack) in which the leaf tobacco dry leaves 1 are supported by the upper left and right guide rails 62 on the inner surface of the drying chamber 60 via the rollers 3. The needle rack in which the leaf tobacco dry leaf 1 is packed is simply referred to as “needle rack” 2) can be transferred from the guide rail 62. A connecting arm 32 is installed between the upper ends of the left and right sliders 31 to which the lifting rails 30 are fixed, and a lower end of a wire 42 (to be described later) of the balancer 40 is locked to the center of the connecting arm 32 via a hook 42a. ing. Each lifting rail 30 is suspended from a wire 42 via a slider 31 and a connecting arm 32.

  The balancer 40 is installed on the upper surface of the central portion of the upper frame 23 of the portal frame 20. The balancer 40 includes a main body 41, a wire 42 for suspending each lifting rail 30, a shaft rotatably supported in the main body 41, and a winding drum 43 around which the wire 42 is wound, and a main body 41. A spiral spring (not shown), the inner end of which is engaged with a part of the winding drum 43 and the outer end of which is engaged with a part of the main body 41; A tension adjusting screw (spring force adjusting means) 44 that adjusts the tensile force applied to the wire 42 during ascent and descent is provided. The spiral spring lowers each lifting rail 30 on which the needle rack 2 is placed to the unloading position B by its own weight while applying a tensile force to the wire 42, and the needle rack 2 is unloaded. It acts to raise and return each lifting rail 30 to its original position.

  The tension adjusting screw 44 changes the inner end position around the axis of the spiral spring by turning the screw clockwise or counterclockwise in FIG. 1, and the elevating rail 30 is moved into the drying chamber 60 by a stopper 33 described later. When the coil spring is stopped at the connection position A with respect to the left and right guide rails 62, the number of turns and the degree of winding of the spiral spring are changed, thereby adjusting the pulling force on the wire 42 when the elevating rail 30 is raised and lowered. ing. When the tension adjusting screw 44 is turned clockwise, the number of turns and the degree of winding of the spiral spring are increased, and the tensile force against the wire 42 is increased. When the tension adjusting screw 44 is turned counterclockwise, the number of turns and winding of the spiral spring is increased. The degree decreases and the tensile force on the wire 42 decreases.

  Each rotary damper mechanism 50 adjusts the raising / lowering speed of the raising / lowering rail 30 to be constant, and a main body 51 attached to the upper left and right ends of the upper frame 23 of the portal frame 20 and a rotation main shaft 52 of the main body 51. Each lifting rail 30 is adjusted by adjusting the braking force applied around the axis of the rotary main shaft 52, and the link arm 53 having one end connected to the bearing arm 32a at the left and right ends of the upper surface of the connecting arm 32 and the other end. And a speed adjusting screw (speed adjusting means) 54 that adjusts the speed at the time of raising and lowering.

  The speed adjusting screw 54 can change the braking force applied around the rotation main shaft 52 by changing the viscous resistance of the internal oil by turning the screw clockwise and counterclockwise in FIG. When the speed adjusting screw 54 is turned clockwise, the viscosity resistance of the internal oil is increased, the braking force applied around the rotation main shaft 52 is increased, and the speed when the elevating rail 30 is raised and lowered is reduced. When the speed adjusting screw 54 is turned counterclockwise, the viscosity resistance of the internal oil is reduced, and the braking force applied to the rotating main shaft 52 is reduced. In the present embodiment, two-stage speed adjusting screws 54A and 54B are provided. With the both speed adjusting screws, the speed during raising and lowering of the lifting rail 30 and the speed immediately before stopping can be adjusted.

  On the upper surface of the connecting arm 32, stoppers 33 are attached near both ends thereof to stop the ascending / descending rails 30 at connection positions A with respect to the left and right guide rails 62 in the drying chamber 60. The upper and lower rails 30 are stopped at the connection position A when the upper surface of each stopper 33 abuts against the lower surface of the upper frame 23 of the portal frame 20. The stopper 33 may be attached to the lower surface side of the upper frame 23.

Next, a method of using the leaf tobacco dry leaf take-off device 10 having the above-described configuration will be described with reference to FIGS.
First, when the drying operation of the leaf tobacco in the drying chamber 60 is completed, the door (not shown) of the front opening 61 of the drying chamber 60 is opened, and the unloading device 10 is placed near the front opening 61 of the drying chamber 60. Move to a predetermined position. The apparatus 10 is positioned, and the apparatus 10 is installed and fixed on the floor G using the adjuster bolt 25. In this installed state, the lifting rail 30 of the unloading device 10 has the wire 42 and the stopper 33 wound around the winding drum 43 by the tensile force (winding force) of the spiral spring (not shown) of the balancer 40. It is held at the height of the connection position A with respect to the guide rail 62 in the drying chamber 60 (see FIG. 2).

  From the upper guide rail 62 in the drying chamber 60, an unillustrated worker moves the needle rack 2 with the roller 3 to the lifting rail 30 with the leaf tobacco dry leaf 1 packed as shown in FIG. Let The roller 3 of the needle rack 2 is held in the groove 30 a of the lifting rail 30. When the needle rack 2 is transferred to the elevating rail 30, the elevating rail 30 is pulled by the wire 42 and receives a braking force from the link arm type rotary damper mechanism 50. , And stops at the height of the unloading position B of the needle rack 2 as shown in FIG. The previous worker, at the unloading position B, unloads the needle rack 2 from the lifting rail 30 to the front, conveys the wholesaled needle rack 2 to the back picking work table (not shown), and picks it on the picking work table. Continue working.

  When the needle rack 2 is unloaded at the unloading position B, the weight of the needle rack 2 is removed, so that the lifting rail 30 starts to rise when the wire 42 is wound by the tensile force of the spiral spring. Therefore, since the braking force acts on the rotary main shaft 52 of the rotary damper mechanism 50, the ascent speed is adjusted so that the elevating rail 30 is slowly raised. For this reason, the operator can take out the needle rack 2 with ease and comfort. As shown in FIG. 5, the elevating rail 30 that slowly rises is stopped at the connection position A with respect to the guide rail 62 of the drying chamber 60, as shown in FIG. 5, and prepares for the next removal operation of the needle rack 2.

  If the weight of the needle rack 2 to be taken out next is different, the tension adjusting screw 44 and the speed adjusting screw 54 are used according to the weight of the needle rack 2, and the tension force of the spiral spring and the lifting speed of the lifting rail 30 are increased. Adjust. For example, when the weight of the needle rack 2 to be taken out next is heavier (for example, 15 kg) than the standard weight (for example, 12 to 13 kg), the tension adjusting screw 44 is turned clockwise in FIG. Then, the tensile force of the spiral spring is increased, and the speed adjusting screw 54 is rotated clockwise in FIG. 1 to increase the braking force applied to the rotary main shaft 52 of the rotary damper mechanism 50. Thereby, the raising / lowering speed of the raising / lowering rail 30 and the unloading position B can always be kept constant. In this way, in accordance with the weight change of the needle rack 2, by adjusting the tension adjusting screw 44 and the speed adjusting screw 54, the lifting speed and the unloading position of the lifting rail 30 are adjusted to be kept constant, The take-off work of the leaf tobacco 1 can always be performed safely and easily.

  When all the needle racks 2 are unloaded from the upper guide rail 62, the unloading device 10 is moved, and the needle racks 2 are sequentially unloaded from the lower guide rail 62. The unloading apparatus 10 may be installed in a row in front of the front opening 61 of the adjacent drying chamber 60, and the upper needle rack 2 may be unloaded at the same time. You may move to.

  The leaf tobacco dry leaf take-off device according to the present invention is a device used when an operator takes off a hanging tool in which leaf tobacco dry leaves are packed from a guide rail at a high place in the drying chamber. Widely available.

1 shows a first embodiment of the present invention, a front view of a leaf tobacco dry leaf take-off device, The side view which shows the state which positioned the unloading apparatus of FIG. 1 in the front part of the front opening part of the drying chamber, and was installed and fixed, The side view which shows the state which transferred the hanging tool in the state in which the leaf tobacco dry leaf was stuffed from the upper guide rail of a drying chamber to the raising / lowering rail, FIG. 3 is a side view showing a state where the lifting rail is lowered at the lower unloading position by the weight of the hanging tool from the state of FIG. 3; It is a side view which shows the state which the raising / lowering rail raised and returned from the state of FIG. 4 to the connection position with respect to an upper guide rail by the removal of a hanging tool.

Explanation of symbols

1 Leaf tobacco dry leaves 2 Needle rack
3 Roller 10 Unloading device 20 Gate frame 21 Base frame 21a Front end of base frame 22 Support column 23 Upper frame 24 Caster (moving means)
25 Adjuster bolt (fixing means)
26 Balance weight 27 Base 28 Height adjustment bolt (height adjustment means)
DESCRIPTION OF SYMBOLS 29 Support main body 29A Guide rail 30 Elevating rail 30a Groove part 31 Slider 32 Connecting arm 33 Stopper 40 Balancer 41 Main body 42 Wire 43 Winding drum 44 Tension adjusting screw (spring force adjusting means)
50 Rotary Damper Mechanism 51 Main Body 52 Rotating Spindle 53 Link Arm 54, 54A, 54B Speed Adjustment Screw (Speed Adjustment Means)
60 Drying room 61 Front opening 62 Guide rail A Connection position of the lifting rail to the guide rail B Unloading position of the needle rack G Floor surface

Claims (5)

A gate-type frame positioned with respect to the front opening of the drying chamber, a pair of left and right lifting rails supported on the inner sides of the left and right pillars of the gate-type frame, a balancer installed on the top of the gate-type frame, A pair of left and right rotary damper mechanisms provided between the portal frame and each of the lifting rails;
The balancer includes a wire for suspending the elevating rail, a take-up drum around which the wire is wound, and a hanging tool in which the leaf tobacco dry leaves are packed while applying tensile force to the wire. A spiral spring for transferring from the guide rail in the drying chamber to lower each lifting rail to its unloading position by its own weight, and lifting and returning each lifting rail by unloading the lifting tool, A spring having spring force adjusting means for adjusting a tensile force against the wire at the time of raising and lowering the lifting rail;
The rotary damper mechanism includes a main body installed at an upper part of the portal frame, a link arm having one end connected to a rotation main shaft of the main body and the other end connected to the lifting rail side, and a shaft of the rotation main shaft. A means for generating a braking force around, and a speed adjusting means for adjusting the speed at the time of raising and lowering each lifting rail by adjusting the braking force,
Furthermore, the leaf tobacco dry leaf take-out device is characterized in that it has a stopper for stopping each raising and lowering rail at a position connected to the left and right guide rails in the drying chamber.   The said leaf | frame type | mold frame has a balance weight in the edge part on the opposite side to the side which faces the said drying chamber of the base which supports the said support | pillar, The taking-off of the leaf tobacco dry leaf of Claim 1 characterized by the above-mentioned. apparatus.   The said each support | pillar has a height adjustment means which adjusts the height of the connection position of each raising / lowering rail according to the height of the guide rail in a drying chamber, The Claim 1 or Claim 2 characterized by the above-mentioned. A take-off device for dry tobacco leaves.   Each strut has a front surface of the drying chamber such that the amount of separation between the lifting rail and the front opening of the drying chamber gradually increases as the lifting rail descends from the connection position to the left and right guide rails in the drying chamber. The leaf tobacco dry leaf unloading apparatus according to claim 1, wherein the apparatus is inclined by 2 to 5 degrees toward the opening.   5. The leaf tobacco dry leaf taking-out apparatus according to claim 1, wherein the portal frame includes a moving means and a fixing means to a floor surface.

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