JPH07184623A - Apparatus for automatic feeding of leaf tobacco - Google Patents

Abstract

PURPOSE:To provide an apparatus for the automatic feeding of leaf tobacco, capable of shortening the working time by automatically feeding leaf tobacco without using manual work, enabling the continuous operation and capable of automatically supplying leaf tobacco to a prescribed position in high precision at a high speed. CONSTITUTION:This automatic feeding apparatus is provided with a suction part 1 to suck leaf tobacco T, a gripping part 3 to grip the stalk-side part of the leaf tobacco T sucked with the suction part 1 and a transfer part 5 to transfer the leaf tobacco T gripped with the gripping part 3 to a feeding position. The stalk-side part of the leaf tobacco T sucked with a suction pad 12 of the suction part 1 is gripped with a gripping claw 32 of the gripping part 3 by the action different from the action of the suction part 1 and the leaf tobacco T gripped with the gripping claw 32 of the gripping part 3 is transferred to a feeding position by an arm 51 of the transfer part 5.

Description

Detailed Description of the Invention

[0001]

[Industrial applications]

The present invention relates to an automatic leaf tobacco feeder, and more particularly to an automatic leaf tobacco feeder used for leaf knitting work in conventional and Burley leaf tobacco.

[0003]

[Prior art]

The leaf knitting work on conventional and Burley tobacco uses a rope or steel hanger as a hanging tool.

Conventionally, in the case of a continuous rope, a method of supplying leaf tobacco one by one by hand and knitting it or a method of manually supplying one by one between twists using a continuous knitting machine is used. Was there.

Further, in the case of a steel hanger, a method has been adopted in which leaf tobacco is arranged on the hanger one by one by hand and one continuous portion is supplied and the tobacco is sandwiched by pressing the hanger.

[0007]

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional methods, since leaf tobacco is supplied by hand, it takes a lot of time and it is difficult to continue the work.

Therefore, there has been a demand for a means capable of reducing the work time and continuously performing the work by automatically supplying the leaf tobacco without manual labor.

As an apparatus for automatically supplying leaf tobacco, the applicant of the present application has previously proposed a leaf tobacco supply apparatus of Japanese Patent Application No. 4-89309 corresponding to an existing continuous knitting machine mainly using an adsorption method, Japanese Patent Application No. Hei 4-357859 is a leaf tobacco aligning and feeding device which is mainly arranged horizontally on a steel hanger.

However, in the subsequent research, it became clear that the above two supply devices had the following problems to be solved.

Regarding the transfer speed, in any of the supply devices, since the suction pressure is confirmed by the negative pressure sensor one cycle at a time, a time loss occurs, and since the transfer is performed in the adsorbed state, leaf tobacco may drop during transfer. There is a fear that there is a limit to the speedup.

In the case of the leaf tobacco aligning and feeding device,
Since the adsorption unit moves vertically and back and forth in a straight line, one process requires time, and it is possible to shorten the supply time per sheet by installing a plurality of units, but it also greatly affects the size of the apparatus itself and the cost.

Regarding work accuracy, since the leaf tobacco feeding device transfers the leaf while it is adsorbed (the leaf tobacco position on the mounting table), an insertion error is likely to occur between the twists, and the lifter frame ascends and descends each time it is adsorbed. By repeating the above, the collapse of the leaf tobacco and the adsorption error are likely to occur.

Further, the leaf tobacco aligning and feeding apparatus is a method of releasing the leaf tobacco from the adsorption during advancing transfer in an adsorbed state and aligning it on the conveyor with the guide and the collision plate. It is uncertain due to the time, variety, and position.

With respect to the structure of the suction part, the suction port of the leaf tobacco supply device is always fixed horizontally and cannot cope with the unevenness of the surface of the leaf.

Further, each of the feeding devices has two or three.
Adsorption is performed by one suction port, but since it is branched into two or three, the amount of air to be sucked is lost, and since the suction point is linear, the leaf tobacco posture is also linear. Required.

Therefore, an object of the present invention is to provide a device capable of continuously performing the work while shortening the work time by automatically supplying the leaf tobacco without manual labor. Another object of the present invention is to provide a device for automatically supplying leaf tobacco to a predetermined position at high speed and with high accuracy.

[0019]

[Means for Solving the Problems]

Means for solving the problems of the present invention are as follows.

First, a suction portion for sucking leaf tobacco, a grip portion for gripping the leaf side of the leaf tobacco sucked by the suction portion,
An automatic leaf tobacco supply device, comprising: a transfer unit that transfers the leaf tobacco gripped by the gripping unit to a supply location, and the suction of the leaf tobacco by the suction unit and the gripping of the leaf tobacco by the gripping unit are performed in different operations.

[0022]

[Action]

According to the automatic leaf tobacco feeder of the present invention,
The gripping part grips the leaf side of the leaf tobacco adsorbed by the adsorbing part by an operation different from that of the adsorbing part, and the transfer tobacco transfers the leaf tobacco gripped by the gripping part to a predetermined position.

[0024]

【Example】

An embodiment of the leaf tobacco automatic feeding device of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an automatic leaf tobacco feeder according to the present invention, FIG. 2 is a side view showing an outline of a drive system of the automatic leaf tobacco feeder according to the present invention, and FIG. 3 is a longitudinal section of an adsorption pad of an adsorption portion. FIG. 4 is a schematic view of an example of a grip claw of a grip portion,
FIG. 5 is a schematic view of another example of the gripping claws of the gripping portion, FIG. 6 is a schematic view showing a state in which the gripping claws shown in FIG. 4 transport the leaves and arrange them on a conveyor, and FIG. FIG. 8 is a schematic diagram showing a state in which the gripping claws shown in FIG.

The apparatus for automatically supplying leaf tobacco according to this embodiment adsorbs the leaf tobacco T, the adsorbing section 1, the gripping section 3 for gripping the leaf side of the leaf tobacco T adsorbed by the adsorbing section 1, and the gripping section 3. Transfer section 5 for transferring leaf tobacco T to the supply location
And the lifter section 7 for moving the placed leaf tobacco T up and down.
Are provided in the main body 9.

As shown in FIG. 3, the suction unit 1 is provided with a bellows-shaped rubber suction pad 12 on the lower end side of the vertical solenoid 11 for vertical movement, as shown in FIG. 3, in order to easily correspond to the surface shape of leaf tobacco during suction. As shown in FIG. 2, the upper end side of the upper and lower solenoids 11 is attached to the support body 13 as shown in FIG.
Supported by the upper and lower solenoids 11 via the support 13.
Suction hose 1 connected to the suction port 14a of the blower 14
5 are connected.

An air shutoff solenoid 16 is attached in the middle of the suction hose 15.

In FIG. 3, reference numeral 17 denotes a net attached to the suction port side of the suction pad 12 for preventing leaf breakage during suction.

The grip portion 3 is formed by attaching two pair of linear grip claws 32 on the lower end side of the base 31.

The two gripping claws 32 hold the tobacco leaf T by opening and closing horizontally by 180 degrees, and the tip end side moves in an arc shape to close the leaf tobacco T (see the dotted line in FIG. 1). As shown in FIG. 6, it is suitable for transportation (that is, side-by-side supply) onto hangers or a conveyor of a sewing machine.

In FIG. 6, reference numeral 61 is a conveyor, and 62 is a guide plate provided at the flow start position of the conveyor.

Although not shown in the drawing, the two gripping claws are arranged so as to face each other so as to have a gap, and the gripping claws are moved in parallel so that the gap is narrowed. It may be sandwiched.

As shown in FIG. 4, a flat rubber plate 33 is attached to the grip claw 32 at the contact surface with the leaf tobacco T so that the gripped leaf tobacco T does not slip.

Although not shown, in order to prevent the leaf tobacco from slipping, it is possible to form irregularities or a large number of small projections on the surface of the rubber plate 33.

In addition to the gripping claw 32 described above, as shown in FIGS. 5 and 7, a curved gripping claw 34 suitable for supplying to a continuous knitting machine (that is, supplying between narrow twists of a rope). Can also be adopted.

In FIG. 7, 81 is a continuous knitting machine, 82 is a drying rope, and 83 is a veneer.

The curved gripping claws 34 are rod-shaped gripping claws 36 in which two round bars 35, both ends of which are formed in an arc shape, are arranged at intervals, and both ends of the curved gripping claw 34 are formed in an arc shape. A long plate claw 38 having a rubber plate 37 attached to the contact side of the round plate 35 of the rod-shaped grip claw 36 when the curved grip claw 34 is closed.
The long plate claw 38 is accommodated between them, and the leaf tobacco T can be moved as close to the center as possible when closed.

The transfer part 5 has a base 31 of the grip part 3 on the tip side.
The arm 51 (see FIG. 1) to which the upper end side of is connected is moved by an arm drive motor 52 and a link mechanism 53 (see FIG. 2) in a circular arc shape from the leaf tobacco suction position to the feed position. is there.

The lifter section 7 is a table in which a leaf tobacco T is placed and is held by lifter pawls 73 which are vertically moved by a lifter drive motor 72.

In the figure, 74 is a lifter substrate provided separately from the main body 9, and 75 is a load standing on the lifter substrate 74 so as to pass through an opening (not shown) of the mounting table 71. The collapse prevention stick is shown.

In FIG. 2, 76 is a clutch release rod for lowering the lifter pawl 73, and 77 is a lifter board 74.
The caster mounted on the bottom side of the, 78 is a photoelectric sensor for confirming the suction position.

As shown in FIG. 1, on one side surface of the main body 9,
A control box 91 is attached.

The control box 91 is provided with an apparatus start button 91a, an apparatus stop button 91b, a blower start button 91c, and a blower stop button 91d.

In the figure, reference numeral 92 denotes a caster attached to the bottom side of the main body 9.

Next, the operation of the above-mentioned automatic leaf tobacco feeder will be described.

Each part of the above-mentioned automatic leaf tobacco feeder operates one cycle in accordance with the timing chart of FIG.

First, after the leaf tobacco T is placed on the placing table 71 of the lifter section 7, the blower start button 91c of the control box 91 is inserted and the apparatus start button 91a is inserted.

Then, the blower 14 operates and the suction port 14
Suction air passes through the suction hose 15 attached to a, and the suction pad 12 is in a suction state.

By inserting the apparatus start button 91a, the lifter drive motor 72 is operated and the lifter pawl 73 holding the mounting table 71 is raised, whereby the mounting table 7 is moved.
It also increases by 1.

The mounting table 71 rises until the uppermost leaf of the tobacco leaf T placed on the mounting table 71 is detected by the signal from the photoelectric sensor 78 for confirming the suction position.

Whether the leaf tobacco T on the mounting table 71 is gone,
By pushing the device stop button 91b, the lifting of the lifter claw 73 is stopped, and the driving other than the blower 14 is stopped at the basic position.

The lifter pawl 73 is quickly lowered by manually pulling the clutch release rod 76.

The placing table 71 held by the lowered lifter pawls 73 is replaced with another placing table 71 on which leaf tobacco is placed in advance.

As soon as the mounting table 71 is raised to the suction position, the upper and lower solenoids 11 of the suction unit 1 are lowered, and the suction pad 12 sucks the uppermost leaf tobacco T.

When the sucking pad 12 sucks the leaf tobacco T, the upper and lower solenoids 11 immediately rise.

The basic state of the grip portion 3 and the transfer portion 5 is that the arm 51 is on the suction portion 1 side and the grip claw 32 is opened 180 degrees.

The upper and lower solenoids 11 are lowered, and at the lowered position, the suction pad 12 sucks the uppermost leaf tobacco T, and when the upper and lower solenoids 11 are raised to the upper ends, the grip claws 32 are immediately closed, and the grip claws 32 are used to move the leaf tobacco T. Grasp the base of the leaf.

While holding the leaf tobacco T by the gripping claws 32 and at the same time holding the leaf tobacco T by the gripping claws 32, the transfer is started by the arm 51 of the transfer section 5, and the suction is instantaneously caused by the operation of the air cutoff solenoid 16. Be cut free.

The transfer is carried out by the 90 degree link mechanism 53.
The tip end side of the arm 51 is moved in an arc shape and temporarily stopped at the transfer end.

At the end of transfer, the grip claw 32 is opened 180 degrees and the gripped leaf tobacco T is supplied to a predetermined position to complete the transfer.

The grip claw 32 is brought into a basic state at high speed (by a quick return mechanism) by the arm 51 in a state where it is opened 180 degrees.

On the other hand, when the arm 51 starts the transfer, the air shutoff solenoid 16 immediately returns to the suction state again, and the suction movement is restarted.

That is, in the leaf tobacco automatic feeder of this embodiment, the suction movement and the gripping movement movement are operated in different operations,
Moreover, since the respective parts operate in parallel and in parallel in accordance with the timing chart, continuous high-speed supply becomes possible.

Although illustration is omitted, when the grip claw 32 of the grip portion 3 does not grip the leaf tobacco T, the movement of the conveyor can be set to stop.

[0067]

【The invention's effect】

According to the leaf tobacco automatic feeder of the present invention of the above embodiment, the following effects can be obtained.

It is possible to move and install it on various leaf knitting machines or the like without depending on the hanging tool.

Since there is only one suction port, it is possible to separate the leaves by suction with a certain degree of uniform placement.

By opening the grasping claw of the grasping portion by 180 degrees,
The mid-bone portion of the sucked leaf tobacco can be collected in the center (the posture of the leaf base portion can be adjusted), and the working accuracy is improved.

By performing the sucking operation and the gripping operation separately, the vertical (sucking) movement and the arc (grasping transfer) movement can be performed in parallel, and the speed of leaf tobacco supply can be greatly increased.

The transfer speed for one leaf tobacco will be described in detail. In Japanese Patent Application No. 4-89309, a leaf tobacco supply device takes 6.1 seconds, and in Japanese Patent Application No. 4-357859, a leaf tobacco alignment supply device takes 2.4 seconds. On the other hand, the leaf tobacco supply device of the present invention in the above embodiment takes 1.5 seconds or less.

Since the automatic supply work can be stably performed, one worker can perform other works in parallel.

Therefore, according to the apparatus for automatically supplying leaf tobacco of the present invention, the operation time can be shortened and the operation can be continuously carried out by automatically supplying the leaf tobacco without manual labor. High-speed and high-accuracy, leaf tobacco can be automatically supplied to a predetermined position.

[Brief description of drawings]

FIG. 1 is a perspective view of an automatic leaf tobacco feeder according to the present invention.

FIG. 2 is a side view showing an outline of a drive system of the automatic leaf tobacco supply device of the present invention.

FIG. 3 is a vertical sectional view of a suction pad of a suction unit.

FIG. 4 is a schematic view of an example of a grip claw of a grip portion.

FIG. 5 is a schematic view of another example of the grip claw of the grip portion.

FIG. 6 is a schematic view showing a state where the gripping claws shown in FIG. 4 transfer the leaves and arrange them on a conveyor.

FIG. 7 is a schematic view showing a state where the gripping claw shown in FIG.

FIG. 8 is a timing chart.

[Explanation of symbols]

 1 Adsorption Part 3 Gripping Part 5 Transfer Part 7 Lifter Part 9 Main Body 11 Vertical Solenoid 12 Adsorption Pad 13 Support Body 14 Blower 14a Suction Port 15 Suction Hose 16 Air Cutoff Solenoid 17 Net 31 Base Body 32 Grip Claw 33 Rubber Plate 34 Curved Grip Claw 35 round bar 36 bar-shaped gripping claw 37 rubber plate 38 long plate claw 51 arm 52 arm drive motor 53 link mechanism 61 conveyor 62 guide plate 71 mounting table 72 lifter drive motor 73 lifter claw 74 lifter board 75 load collapse prevention bar 76 clutch release bar 77 Caster 78 Photoelectric Sensor 81 Continuous Knitting Machine 82 Drying Rope 83 Veneer 91 Control Box 91a Device Start Button 91b Device Stop Button 91c Blower Start Button 91d Blower Stop Button 92 Caster

Claims (1)

[Claims] 1. A suction unit for sucking leaf tobacco, a gripping unit for gripping a leaf side of leaf tobacco sucked by the suction unit, and a transfer unit for transferring the leaf tobacco gripped by the gripping unit to a supply point, An automatic leaf tobacco supply device in which suction of leaf tobacco by a suction unit and gripping of leaf tobacco by a gripping unit are performed in different operations.