JPH10323173A - Device for separating leaf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leaf-separating device capable of surely preventing the generation of left leaves and smoothly executing the leaf-separating operation on an operation for separating the leaves from dried tobacco trunks. SOLUTION: This leaf-separating device has a carrying device 20 for carrying dried tobacco trunks T placed in a state approximately orthogonal to the carrying direction from the upstream side to the downstream side and a separating device in which a plurality of separating mechanisms 30 for separating tobacco leaves (t) from the dried tobacco trunks carried with the carrying device are arranged in the direction orthogonal to the carrying direction. Therein, each separating mechanism 30 has a pair of leaf-separating rolls 33, 33 arranged parallel to the carrying direction and a pair of spiral blades rotated synchronously with the leaf-separating rolls 33 and arranged on the upstream side of the carrying direction of the leaf-separating rolls 33. A resistant member 44 for being collided with the leaf (t) separated from the tobacco trunk (m) to give a resistant force to the leaf is preferably disposed in each separating mechanism 30 in a state approximately orthogonal to the carrying direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leaf picking apparatus for separating dried tobacco leaves from stems.

[0002]

2. Description of the Related Art As one form of tobacco leaf harvesting work, tobacco cultivated in a field is harvested from the root of the trunk, and is directly suspended in a drying room and dried. Separation of tobacco leaves from is performed. In the leaf picking work for separating the tobacco leaves from the stem dried tobacco, it is troublesome to perform this by hand, and there is a limit in improving the work efficiency. Therefore, it has been proposed to machine the leaves from stem tobacco by a machine.

For example, Japanese Unexamined Patent Publication No. Hei 4-281778 (Japanese Patent Publication No. 7-102122) discloses a transport device for placing and transporting stem tobacco in a direction substantially perpendicular to the transport direction and sequentially transporting the trunk. A separating device in which a plurality of separating units for separating tobacco leaves from the trunk of the tobacco are arranged in a direction orthogonal to the transport direction is disposed on the downstream side in the transport direction, and further,
There is described a leaf mowing device in which an aligning device for aligning tobacco leaves that have settled on the stem of the stem dried tobacco toward the separating section is disposed upstream of the separating device in the transport direction.

[0004] The above-mentioned leaf torch device can continuously perform the operation of separating the tobacco leaves from the trunk of the trunk tobacco, and can improve the efficiency of the separation operation. By arranging the aligning device on the upstream side in the transport direction, the tobacco leaves of the stem tobacco transported to the separating device can be aligned toward the separating mechanism, thereby ensuring the separation of the tobacco leaves from the trunk. In addition, the generation of tobacco leaves that are not separated can be almost certainly prevented. Further, since the stem dried tobacco is transported in a direction substantially orthogonal to the transport direction, the leaf tow from the stem dried tobacco can be separated according to the leafing position on the trunk.

Japanese Patent Application Laid-Open No. 6-269269 discloses a further improved leaf picking device. In this device, a cigarette leaf aligning device is provided with a pair of rotating brushes and a vertically hanging plate. The brushes are arranged so as to be orthogonal to the conveying direction, and further, as a separating mechanism, a plurality of sets of brush rolls each having a rotating shaft parallel to the conveying direction and having a spindle-shaped tip with a set of two are arranged. Are arranged on the same rotation axis as the brush roll on the downstream side of the brush roll.

[0006] In this leaf picking device, the tobacco leaf attached to the trunk is reliably aligned downward and hangs down by the plate brush hanging vertically. Then, the tobacco leaf in that state is further sandwiched from both sides by a pair of brush rolls, and sent to the leaf mog roll in a state of hanging down, so that it occurs when the leaf is torn in a state such as not completely hanging down. It is possible to avoid the tendency of stripping or leaving only a part of the tobacco leaf, and to avoid causing damage to the tobacco leaf, thereby further improving the efficiency of the leaf scraping operation.

[0007]

SUMMARY OF THE INVENTION In the above-described leaf splicing apparatus, a brush roll that rotates coaxially is arranged upstream of the leaf spoon roll, so that the trunk dried tobacco, which has been dried to a normal degree, is expected to have the desired effect. Street leaf mowing was performed, but when the tobacco leaf on the trunk became more watery, the tobacco leaf experienced wrapping around a brush roll. Even if the wrapped tobacco leaves are separated from the trunk, they do not easily fall off the brush roll, not only become damaged leaves, but also affect the treatment of the next transported stem tobacco, In some cases, smooth work was hindered.

Further, in actual work, there is a phenomenon that, despite the fact that the tobacco leaf is drawn into the leaf-mogi roll portion, the tobacco leaf is moved from the trunk to the downstream side of the leaf-mogi roll without being leaf-leaved. Was. This phenomenon was often observed mainly when the tobacco leaf had a small bone, or when the tobacco leaf penetrated at an angle rather than at a right angle to the leaf-mog roll. In each case, such leftover leaves had to be manually removed, which led to a decrease in work efficiency.

[0009] The present invention has been made in view of the above circumstances, and even when stem dry tobacco having a high moisture content of tobacco leaves is conveyed, the tobacco leaves surely hang down. It is an object of the present invention to obtain a leaf splicing apparatus that can feed stem dry tobacco to the leaf splicing roll side, thereby enabling the leaf splicing operation to be reliably performed by the leaf splicing roll. Also, in the present invention, in the unlikely event that the leaves are to be discharged from the leaf-mog roll together with the stem without being leaf-leaved, the leftover leaves are generated such that the stem dried tobacco remains in the leaf-mog roll portion until the leaf is removed. It is an object of the present invention to obtain a leaf-mogi device capable of reliably preventing the occurrence of a leaf.

[0010]

In order to solve the above-mentioned problems, the present inventors have continued experiments to replace a conventional coaxially rotating brush roll with a pair of leaf milling rolls. By providing a spiral blade at the tip of the leaf milling roll and rotating it with the leaf milling roll, winding of the tobacco leaf can be avoided, and downward alignment of the tobacco leaf and downstream feeding are also possible. It was found that it would be better.

The leaf splicing apparatus of the present invention is basically based on the above findings, and includes a conveying apparatus for conveying trunk tobacco placed in a state substantially perpendicular to the conveying direction from an upstream side to a downstream side, and the conveying apparatus. A separating device in which a plurality of separating mechanisms for separating tobacco leaves from the stem dried tobacco conveyed by the device are arranged in a direction orthogonal to the conveying direction, and each of the separating mechanisms is arranged in parallel to the conveying direction. And a pair of spiral blades arranged on the upstream side in the transport direction of the leaf-mogi roll.

[0012] According to this leaf splicing device, the tobacco leaves growing on the trunk of the stem tobacco conveyed from the upstream side to the downstream side by the conveying device are arranged on the upstream side in the conveying direction of the leaf sprouting roll. It is turned downward by passing between the pair of spiral blades, and is forcibly fed to the downstream side, that is, to the pair of leaf miller rolls along the spiral locus. Therefore, even if the tobacco leaf has a lot of moisture, it is not entangled in the spiral blade, and the occurrence of the damaged leaf and the stagnation of the leaf picking operation due to the entanglement are avoided. Further, since the tobacco leaves are sufficiently aligned downward by the rotation of the spiral blade, it is not always necessary to provide a separate tobacco leaf alignment device on the upstream side. This makes it possible to reduce the length of the entire leaf splicing device, and to reduce the size of the device.

[0013] In a preferred aspect, each of the separating mechanisms is provided between the conveying surface of the stem tobacco and the pair of leaf wiping rolls so as to abut against tobacco leaves that are not torn off from the trunk to provide resistance to the tobacco leaves. A resistance member is further provided in a state substantially orthogonal to the transport direction. This resistance member prevents the tobacco leaf from being conveyed downstream, so that the time during which the tobacco leaf is subjected to the stripping action by the leaf milling roll can be prolonged, whereby the stripping from the trunk is ensured, and Leaf elimination is completely eliminated.

[0014] In a further preferred aspect, the separation device has a plurality of separation mechanisms arranged one by one in the transport direction. As a result, it is possible to arrange more separation mechanisms in the length range of the stem tobacco, and it is possible to prevent the tobacco leaf from being in the inclined position when the tow is removed from the trunk by the pair of leaf-mog rolls. Separation and storage by position is more reliable.

[0015] The tobacco leaves that have been peeled off from the trunk by the separation mechanism and fallen are separated by leafing positions by a partition plate arranged below the separating device, and are separated and accommodated without being mixed with the tobacco leaves in the adjacent position. . Preferably, a bottom plate that can move in the vertical direction is provided inside the storage chamber divided by the partition plate, so that the falling distance of the tobacco leaf falling from the separation device can be adjusted. Also, preferably, a bar for giving directionality to the tobacco leaf that has been leaf-leaved is inserted in the accommodation room in the lateral direction. As a result, it is possible to reduce the disorder of the leaves of the tobacco leaf that has been cut off from the leaf and to improve the efficiency of workability in the finish drying after the leaf removal. Inclining the bottom surface of the storage chamber is also effective in reducing the disturbance of the leaves. Further, the stem after the leaf is cut off is discharged to the downstream side of the device by the transport device.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a leaf splicing apparatus according to a preferred embodiment of the present invention. 1, FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view for explaining a transfer device in the apparatus shown in FIG. 1, and FIG. 3 is an enlarged plan view showing a separation device. FIG. 4 is an enlarged perspective view showing only a main part of a separation mechanism of the separation device.

The leaf splicing apparatus has a frame base 10 composed of a bottom plate 1 and left and right side plates 2 and 3, and the frame base 10 has a transfer device 20 for transferring the trunk dried tobacco T (see FIG. 2).
And a separating device 40 having a plurality of separating mechanisms 30 (see FIG. 4) for separating the tobacco leaf t from the stem m of the stem dried tobacco T.

The width of the frame base 10 is substantially the same as or slightly shorter than the length of the trunk m of the trunk tobacco T, and a plurality of grooves 4 are formed in the width direction thereof. (Three in the figure) partition plates 5 are attached movably in the width direction (left-right direction). Carriers 6 are attached to the four corners of the bottom plate 1 of the frame base 10 to facilitate movement of the leaf picking device.

The separating device 40 is provided above the frame base 10 between the left and right side plates 2 and 3. That is, the first conductive case 41 is disposed between the upper rear end of the side plate 2 and the upper rear end of the side plate 3.
A plurality of (ten in the figure) separation mechanisms 30 are attached to 1 in a lateral direction (a direction perpendicular to the transport direction of the tobacco leaf T described later). As shown in FIG.
0 is a pair of rotating shafts 3 that are parallel to each other and extend in the horizontal direction.
The rear ends of the pair of rotating shafts 31, 31 are located in the first conductive case 41, and are driven in opposite directions by a driving mechanism (not shown) as shown by arrows in FIG. It is made to rotate.

At the tips of the pair of rotating shafts 31, 31, spiral blades 32, 32 are provided at a pitch of approximately one pitch in a direction opposite to each other. Back (from left to right in FIG. 4)
The direction is as if the spiral progresses toward.
And, preferably, the left and right spiral blades 32, 32 are arranged in the same phase, and several m between their outer peripheral leading edges.
An interval P of about m (see FIG. 3) is formed.

The spiral blade 3 of the pair of rotating shafts 31, 31
Near the rear end position of 2, 32, a pair of leaf milling rolls 3
3, 33 are attached or integrally formed with the rotating shaft. Each spike roll 33 is a cylindrical body having a conical tip, and a plurality of grooves 34 are formed in the circumferential surface in the axial direction. Then, the pair of leaf spike rolls 33, 33 are combined so that the grooves 34, 34 formed in the pair of leaf spike rolls 33, 33 can rotate in mutually opposite directions (in the direction of the arrow in the figure) in a state where they engage with each other. I have.

There are ten separating mechanisms 30 having the above-described configuration,
It is attached to the first conductive case 41 attached between the side plate 2 and the side plate 3 in a state of being arranged so as not to be in contact with each other by being arranged alternately back and forth,
By driving the transmission mechanism in the first transmission case 41, the rotation shafts 31, 31 of the respective separation mechanisms 30 are driven to rotate, and the pair of spiral blades 32, 32 and the leaf milling rolls 33, 3 are rotated.
3 rotates in the directions indicated by arrows in the figure, in directions opposite to each other.

As shown in FIG. 3, a support rod 35 is provided at a position slightly above each leaf sprout roll 33 and extends forward in parallel with the axis of the rotary shaft 31.
Is fixed to the conductive case 41. The tip of the support rod 35 extends beyond the tip of the rotation shaft 31 of the separation mechanism 30a located forward. Then, the tip of the support rod 35 running on the rotation axis 31 of the separation mechanism 30a located in front and the tip of the support rod 35 running on the rotation axis 31 of the separation mechanism 30b located rearward gradually approach in a V-shape. And finally connected. In this example, the tip positions of the V-shaped portions thus formed are alternately set back and forth. A guide 36 (FIG. 1) having a height approximately equal to the diameter of the leaf milling roll 33 is integrally attached downward to the V-shaped portion.
Is attached. Thereby, for example, the tobacco leaf t is prevented from entering the space between the leaf milling roll 33 in the front separating mechanism 30a and the leaf milling roll 33 in the adjacent separating mechanism 30b. Further, as shown in the figure, guides 45 for the separation mechanism 30 are provided on the left and right side plates 2 and 3 of the frame base 10.

On the other hand, between the support rods 35, 35 located on a pair of rotating shafts 31, 31, which constitute each separation mechanism 30, and at a position above the downstream end of the pair of leaf spike rolls 33, 33. Is a plate member 4 which functions as a resistance member.
4 is attached. In the case of the separation mechanism 30 adjacent to the left and right side plates 2 of the frame base 10, a plate member 44 similar to the above is attached between the side plate 2 and the support rod 35.

Next, a transport device 2 for transporting the stem dried tobacco T
0 will be explained. As shown in FIG. 1 and FIG.
A second conductive case 21 is provided on one of the side plates 2. Two support rods 22 a and 22 b extending in the horizontal direction toward the other side plate 3 are provided on the second conductive case 21. They are mounted parallel to each other. Front support rod 22
a is located slightly behind the front end of the separation device 40, and the rear support rod 22b is
1 is located near the rear end. Two support rods 22a, 2
The tip of 2b reaches a position closer to the side wall 3 by a distance of approximately 2/3 between the side walls 2, 3, and between the two support rods 22a, 22b at the tip position and the intermediate position. Guide plates 24, 24 for supporting and guiding a transport chain 23 with claws 23a described later are attached.

At the front ends of the guide plates 24, 24, a floating shaft 25 is supported in parallel with the support rods 22a, 22b.
Sprockets 26, 26 are attached to the left and right ends of the floating shaft 25, respectively. At the rear ends of the guide plates 24, 24, a drive shaft 27 is supported in parallel with the support rods 22a, 22b.
8 is attached, and one end of the drive shaft 27 reaches the second conduction case 21 and is rotationally driven by a conduction mechanism (not shown) in the second conduction case 21.

Between the sprockets 26, 26 and the sprockets 28, 28, transport chains 23, 23 having claws 23a, 23a are wound, and the drive shaft 27,
By the rotation of, the transport chains 23, 23 rotate in a direction in which the side facing the separation device 40 moves from the front to the rear. The distance between the upper surface of the separation device 40 and the side of the transport chains 23, 23 facing the separation device 40 is set to a distance slightly smaller than the average thickness of the trunk m of the trunk tobacco T, and the tip of the separation device 40 ( Trunk dried tobacco T in the upstream) position
When the trunk is laid, the trunk dried tobacco T
Due to the rotation of 23 and the feeding action by the claws 23a, 23a, it is transported downstream along the upper surface of the separation device 40,
Finally, it is discharged from the separation device 40.

At a position above the mounting position of the support rods 22a, 22b in the second conductive case 21, two support rods 29, 29 are mounted in a substantially parallel state in a cantilever state. The tips of 29, 29 reach almost above the right side wall 3. A horizontal frame 51 is attached by connecting the ends of the support rods 29, 29, and a large number of thin steel sheet shields 52 hang down from the frame 51. The lower end of the thin steel sheet shield 52 is located on the side wall 3.
Has almost reached the upper edge. Further, the upper surface side of the transporting device 20 is covered with a transparent reinforced plastic cover 53, and work safety is secured together with the thin steel sheet shielding curtain 52.

A motor M is mounted on the frame base 10, and a drive shaft (not shown) of the motor M is drivingly connected to a transmission mechanism (not shown) in the second transmission case 21. The rotational driving force of the motor M is transmitted to the drive shaft 27 by the transmission mechanism, and further, the first transmission case 4
The power is transmitted to the rotation shafts 31 of each separation mechanism 30 via a transmission mechanism (not shown).

With the above configuration, the worker is allowed to use the trunk dry tobacco T
Is laid at the upstream end position of the separation device 40 in the operating state, that is, when it is arranged in a state substantially perpendicular to the transport direction of the trunk dried tobacco T, the tobacco leaf t hanging downwards is, as shown in FIG. At the same time, the spiral blades 32 of the separation mechanism 30 are pushed down by the spiral blades 32 to be aligned, and at the same time, fed by the spiral blades 32 toward the downstream side, that is, toward the leaf milling roll 33. At the same time, the stem tobacco T comes into contact with the transport chain 23 constituting the transport device 20 and is transported positively toward the lower surface of the separation device 40 by the claws 23a provided on the transport chain 23. In this example, the guides 36 at the upper end of the separation mechanism 30 are alternately arranged back and forth, and the separation mechanisms 30 are also alternately arranged back and forth. The leaves t are separated by the guides 36 without intersecting each other in accordance with the leafing position, and the separated tobacco leaves t are naturally arranged downward by the action of the spiral blade 32 to form a pair of leaves. Mogi rolls 33, 33
Can be reached between. Sent tobacco leaves t
Is a pair of leaf milling rolls 33 as in the case of the conventional apparatus,
By being pulled downward between the grooves 34, 34 of the 33, it is torn off from the trunk m.

The tobacco leaf t which has been removed falls downward, and is separated and stored in the storage chamber on the bottom plate 1 divided by the partition plate 5 according to the leafing position. The stem m is sent rearward while the base of the stem is in contact with the thin steel sheet shield 52, and is discharged to the rear of the separation device 40. The rotatably driven leaf cutter mechanism 30 and the transport conveyor 23 are surrounded by the first conductive case 21, the cover 53, and the shield 52 made of a thin steel plate. The nature is also secured.

Depending on the condition of the stem m and the tobacco leaf t in the stem dried tobacco T, the tobacco leaf t is changed to the leaf-mog roll 33.
While passing through, it may happen that it is not stripped. The plate member 44 described above is provided in order to completely remove the tobacco leaf t in such a case. That is, the stem m of the stem dried tobacco T is sent downstream of the upper surface of the separation device 40 by the transport conveyor 23 and the claws 23a thereof, regardless of whether or not the tobacco leaf t is removed. At that time,
As shown in FIG. 4, if any one of the separation mechanisms 30 generates a tobacco leaf t from which the leaf m is not removed from the stem m during the passage of the leaf-mog roll 33, the leaf of the tobacco leaf t The base part ta abuts against the plate member 44, and the tobacco leaf t
Resistance to the rearward movement of That is, the plate member 44 functions as a resistance member against the feeding of the tobacco leaf t. For this reason, the feeding of the tobacco leaf t is temporarily stopped, and the unripe leaf is subjected to the stripping action of the leaf strip roll 33 for a longer time than usual. As a result, the stripping is reliably performed, and the phenomenon that the tobacco leaves t are not left is reliably avoided.

As described above, the leaf splicer according to the present invention is provided with a spiral blade in place of a conventional coaxially rotating brush roll in front of a pair of leaf spike rolls. It is designed to rotate with
While having a simple configuration, it is possible to prevent the tobacco leaf from wrapping, and also to make the tobacco leaf downwardly aligned and well sent downstream, thereby ensuring the leaf towing operation with the leaf tow roll. In addition, even if the leaf is to be discharged from the roll with the stem without being stripped, the resistance member (plate member 44) is provided at the rear end of the roll so that the stem dried tobacco can be removed until the stem is stripped. It is made to stay in the roll part, and the generation of the leftover leaves is surely prevented. In addition, the plate member 44 as a resistance member is an example, and any plate member can be used as long as it can provide resistance to tobacco leaves by contacting tobacco leaves that cannot be removed from the trunk. Mode may be adopted.

Although not shown, an aligning device, which is used in a conventional leaf picking device and includes a pair of brushes and the like arranged upstream of the separating device in a direction perpendicular to the conveying direction of the stem tobacco, is used in the present invention. It is also possible to use with the inventive leaf picking device.

[0035]

According to the leaf splicing apparatus of the present invention, the tobacco leaves growing on the stem of the stem dried tobacco pass between a pair of spiral blades arranged on the upstream side in the transport direction of the leaf spike roll. It is sent downward between a pair of leaf milling rolls. For this reason, even if the tobacco leaf has a lot of water, it is possible to cut the leaf without being caught in the spiral blade, and it is possible to avoid the stagnation of the leaf picking operation due to the occurrence and the involvement of the damaged leaf. Therefore, it is not necessary to separately provide a tobacco leaf aligning device on the upstream side, so that the configuration can be simplified and the size can be reduced.

In the case where a resistance member is provided for abutting on a tobacco leaf which cannot be peeled off from the trunk and giving resistance to the tobacco leaf, it is possible to lengthen the time for which the tobacco leaf is subjected to the stripping action by the leaf-mogi roll. Then, the removal of the tobacco leaves is completely eliminated, and the removal of the tobacco leaves is completely eliminated.

The tobacco leaves that have been separated from the trunk by the separating mechanism and separated and fallen are separated into leafing positions by a partition plate disposed below the separating device and stored in the storage chamber.
If a resistance bar for aligning the direction of the tobacco leaf is arranged in the accommodation room, or if the bottom plate of the accommodation room can be moved up and down, disturbance of the leaf row can be minimized, Work efficiency can be improved in post-finishing drying.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a leaf splicing device of the present invention.

FIG. 2 is a perspective view illustrating a transfer device in the apparatus of FIG.

FIG. 3 is an enlarged plan view showing a separation device.

FIG. 4 is an enlarged perspective view showing only a main part of a separation mechanism of the separation device.

[Explanation of symbols]

T: trunk dried tobacco, m: trunk, t: tobacco leaf, 10: frame base, 20: transport device, 23: transport conveyor, 30: separation mechanism, 31: rotating shaft, 32: spiral blade, 33: leaf spike roll , 34 groove, 40 separation device, 44 plate member functioning as resistance member

Claims (3)

[Claims] 1. A transport device for transporting stem tobacco placed substantially perpendicular to the transport direction from an upstream side to a downstream side, and a plurality of devices for separating tobacco leaves from the stem tobacco transported by the transport device. A separation device, wherein the separation mechanism is arranged in a direction perpendicular to the transport direction,
Each of the separation mechanisms includes a pair of leaf-groove rolls arranged in parallel with the transport direction, and a pair of spiral blades disposed on the upstream side in the transport direction of the leaf-groove rolls. apparatus. 2. The method according to claim 1, wherein each of the separating mechanisms further includes a resistance member for abutting on the tobacco leaf that is not peeled off from the trunk and for applying resistance to the tobacco leaf in a state substantially orthogonal to the transport direction. The leaf splicing device according to claim 1, characterized in that: 3. The leaf splicing device according to claim 1, wherein the separating device includes a plurality of separating mechanisms which are arranged one by one in a conveying direction in a forward and backward direction.