JPH11127833A - Packaging machine of leaf tobacco - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging machine of leaf tobacco, capable of shortening a pressurizing period and labor saving in packaging and enhancing productivity. SOLUTION: This packaging machine of leaf tobacco is installed with a box 1 having an opening for a large number of dried leaf tobacco, a keep plate 2 for pressing leaf tobacco put in the box 1, a pressure device 3 for compressing leaf tobacco by moving the keep plate 2 forward and backward and a controller for controlling forward and backward movements of the keep plate 2 by the pressure device 3. The keep plate 2 and the pressure device 3 are mounted on a mobile frame 4, the controller is mounted on another mobile controlling frame different from the mobile frame 4 and the pressure device 3 is constituted of telescope-type cylinder 22 which extracts and retreats plural step cylinders having different diameters by a liquid pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leaf tobacco packing machine for squeezing dried leaf tobacco, and more particularly, to packing a large number of dried leaf tobaccos for packing and squeezing them using a telescopic cylinder. Leaf tobacco packing machine.

[0002]

2. Description of the Related Art Conventionally, as a leaf tobacco packing machine, a box having an open top for holding a large number of dried leaf tobacco, a lid for holding the leaf tobacco contained in the box, and a lid for holding the leaf tobacco contained in the box are provided. There is used a configuration having a pressing machine directly connected to a motor that presses from the surface through the press. Then, the leaf tobacco packing machine stacks and loads a predetermined amount of dried leaf tobacco from the upper opening of the box, and places a holding lid on the upper surface of the leaf tobacco, and then presses the leaf tobacco with a pressing machine to obtain a predetermined height, Weight (normal, height: 50c
m, weight: less than 40 kg) to form a compact leaf tobacco block, and the block is packed in a bag to be a shipping product.

[0003] By the way, using this leaf tobacco packing machine,
In order to form the compact leaf tobacco block, it is necessary to repeat the operation of stacking the dried leaf tobacco in a full box and pressing the leaf tobacco with a pressing machine three to four times. Here, squeezing and pressurizing work, when stacking leaf tobacco in a box full and pressurizing,
A pressure of 1.5 t to 2.0 t is required. In order to obtain this pressure, a motor is provided at the top of the box, a compressor consisting of a motor driven reciprocating rod is provided, and a holding lid is loaded on the leaf tobacco, but in consideration of the height and stability of the device, Since the motor cannot be made large, a small motor of about 200 watts must be used, the stroke of the compressor must be about 450 mm, and the pressurizing speed needs to be slow, so the descending speed is about 0.5 m / min. I have. In addition, the stirrer plate is made to work as if the stroke of the compressor was lengthened, and the presser lid placed on the leaf tobacco is pressed and pressed. Then, the crushed leaf tobacco is taken out and packed in a bag. Immediately after the squeezing, since the leaf tobacco has a restoring force, the holding lid placed on the leaf tobacco is fixed, and after the squeezed state is stabilized, from the box. They take out the tobacco, pack it, weigh it, and adjust its weight. Usually, about 20 to 30 pieces of such packing are performed in one work place a day.

[0004]

However, the conventional leaf tobacco packing machine described above has the following problems. That is, in order to make leaf tobacco a predetermined height and a compact form of weight, it is necessary to repeat the work of stacking leaf tobacco, the work of stacking the holding lid, and the work of pressing leaf tobacco several times. In this case, it takes time, requires a lot of manpower, and the work efficiency is poor. It is necessary to measure the weight of a compact leaf tobacco to determine whether it has a predetermined amount.However, since it is usually performed after packing, if there is an excess or deficiency in the weight, it takes time and effort to adjust the weight. Is reduced.

[0005] In view of such problems, the present inventor has conducted various studies and tests. As a result, when compressing leaf tobacco, the pressurizing stroke of the pressurizing device was lengthened and the height of the pressurizing device was reduced as much as possible. The stabilization is achieved by setting the retraction time (return time) shorter than the advance time (pressurization time) and providing a control device for the pressurizing device separately from the pressurizing device to reduce the height. It has been found that the use of a telescopic cylinder (hereinafter referred to as a telescopic cylinder) can save labor and improve productivity.

The present invention has been made on the basis of the above viewpoints, and its object is to reduce the time required for pressurization, to save the labor of packing, and to improve the productivity. To provide a leaf tobacco baling machine capable of carrying out.

[0007]

According to a first aspect of the present invention, there is provided a leaf tobacco packing machine according to the present invention, comprising: a box having an open top for storing a large number of dried leaf tobacco; A press plate for holding leaf tobacco put in, a pressurizing device for moving the press plate forward and backward to compress leaf tobacco, and a control device for controlling forward and backward movement of the press plate by the pressurizing device, The pressing plate and the pressurizing device are provided directly or indirectly on a movable gantry, the control device is provided on a movable trolley separate from the movable gantry, and the pressurizing device is provided with a plurality of cylinders having different diameters. It is characterized by being composed of a telescopic cylinder that extracts and leaves with fluid pressure.

According to a second aspect of the present invention, there is provided a leaf tobacco packing machine, wherein the telescopic cylinder comprises first and second stage cylinders, and the first stage cylinder has a larger diameter than the second stage cylinder. Claim 3 is a leaf tobacco packing machine.
Alternatively, in the two-leaf tobacco packing machine, the retreat speed of the telescopic cylinder is set to be 1.5 to 3 times faster than the extraction speed. Claim 4 is a leaf tobacco packing machine,
In the three-leaf tobacco packing machine, the switching between extraction and retreat of the telescopic cylinder is performed by a switching valve provided on the control table. According to a fifth aspect of the present invention, there is provided a leaf tobacco baling machine according to the first to fourth aspects, wherein a guide rod for guiding the holding plate is provided.

In the present invention, the operation of the telescopic cylinder can be operated with a fluid such as a liquid such as oil or water or a gas such as air, and a liquid such as oil or water is preferable. The telescopic cylinder moves forward during extraction (in other words, extension)
Installed so that you can retreat when you leave (in other words, store)
Extraction and forward and retreat and retreat have the same meaning, respectively. In the present invention, the retreat speed of the telescopic cylinder is 1.5 to 3 times faster than the extraction speed,
If it is less than 1.5 times, it hardly contributes to the improvement of the work efficiency, and if it exceeds 3 times, a complicated device is required for control for stopping.

[0010] The method of squeezing leaf tobacco by the leaf tobacco packing machine of the present invention will be described in the case of using a box having an open top for holding a large number of dried leaf tobaccos. First, put a large number of dried leaf tobaccos in a box, The box is moved to the lower part of the moving gantry, and the holding plate is positioned at the upper opening of the box. Next, the control device is operated to lower the holding plate to compress the leaf tobacco. At this time, the telescopic cylinder is lowered (extracted) to the first stage and then to the second stage to squeeze the leaf tobacco. When the squeezing is stable, move the telescopic cylinder to the first position.
The step and then the second step are raised (retreat), and the presser plate is raised (retreat). Then, the dried leaf tobacco is added and stacked in the box, and the pressing plate of the pressing device is lowered again to compress the leaf tobacco. The pressing operation is repeatedly performed until the weight of the compressed leaf tobacco reaches a predetermined value. When the compression is stabilized to a predetermined value, the pressed leaf tobacco is taken out of the box and packed in a bag. This operation is repeated to squeeze the tobacco.

[0011]

As is apparent from the above description, according to the leaf tobacco packing machine of the first aspect, the pressing plate and the pressing device for holding the leaf tobacco put in the box are provided on the movable gantry. By providing the control stand that can be moved separately from the movable gantry, the height of the device attached to the movable gantry can be reduced, or the length of the device can be shortened, and the installation of the pressurizing device can be stabilized. In addition, since the pressurizing device is composed of telescopic cylinders that extract and retreat multiple-stage cylinders with different diameters by fluid pressure, the stroke of the pressurizing device can be lengthened and labor can be saved by eliminating the need for a shaving plate. it can. Further, since the telescopic cylinder is used, the forward and backward speeds of the holding plate can be increased, and the working efficiency can be improved accordingly.

According to the second aspect of the present invention, the telescopic cylinder comprises the first and second stage cylinders, and the first stage cylinder has a larger diameter than the second stage cylinder. The advance speed of the eye cylinder is increased, and the stroke can be easily lengthened. According to the third aspect of the present invention, the retreat speed of the telescopic cylinder is set to be 1.5 to 3 times faster than the extraction speed, so that the waiting time until the work after pressing can be reduced, and the work efficiency can be improved. It has the effect of. According to the fourth aspect of the present invention, since the switching between the extraction and the retreat of the telescopic cylinder is performed by the switching valve provided on the control table, the operation can be performed separately from the pressurizing device, so that the operation is reliably and safely performed. it can. According to the leaf tobacco packing machine of claim 5, since the guide bar for guiding the holding plate is provided, the pressing device required for pressing can have sufficient strength. The forward and backward speeds can be increased, and the working efficiency can be further improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a leaf tobacco packing machine, FIG. 2 is a side view showing a left side of the leaf tobacco packing machine, and FIG. FIG. 4 is a circuit diagram showing a telescopic cylinder operating hydraulic circuit.

The leaf tobacco baling machine of the present embodiment is a leaf tobacco baling machine for stacking, squeezing and packing leaf tobaccos from the upper opening by using a box having an open top for containing a large number of dried leaf tobaccos. Then, a box 1 for squeezing the dried leaf tobacco, a holding plate 2 for holding the leaf tobacco put in the box, and lowering the holding plate 2
A hydraulically driven pressurizing device 3 that pressurizes and squeezes leaf tobacco, and a movable gantry 4 that supports the pressurizing device 3 at the top of the box 1
And a control unit 5 including a pump for operating the pressurizing device 3 for pressurizing oil, a control device, and the like.

The ridge and intermediate portion of the box 1 are formed by a frame with a frame member 6, the upper portion is formed into a rectangular parallelepiped, the both side surfaces and the rear side surface are surrounded by a wall 7, and the front surface is formed by an opening / closing wall 8. , And the bottom is enclosed by the bottom. The opening / closing wall 8 is attached to a side surface so as to be openable and closable by a hinge, and is locked by locking means 10 such as a latch to lock the opening and closing. Part of the opening / closing wall 8 is a small door 8a.
It is attached by a hinge 11 and is opened and closed in the vertical direction so that a part of the inside of the box can be exposed. By opening the opening / closing wall 8 or the small door 8a,
A part of the inside of the box is exposed to facilitate stacking and removal of leaf tobacco, thereby improving workability and work efficiency.

The lower surface of the bottom of the box 1 is supported by a frame member 6a, the bottom surface is reinforced, and the box 1 may be transported by a forklift or the like. In addition, casters 12 are provided at four corners of the gantry frame member 6a so that the wheels can be rolled and moved, so that the positioning with the pressurizing device 3 can be easily performed. Reinforcing bracket 6b at the center of the side of box 1
At the required position of the reinforcing bracket 6b, one or a plurality of the holding plate fixing holes 14 through which a wooden holding plate fixing rod (not shown) to be used only for final pressing is inserted. And a small door 8 on the opening / closing wall.
a and a plurality of vertically long elongated holes 15 for string passing are formed in the surface facing the small door 8a.

The pressurizing device 3 is a hydraulic telescopic cylinder 2 for lowering or raising the holding plate 2 for holding leaf tobacco.
2, a lower limit switch 23 and an upper limit switch 24. The hydraulic telescopic cylinder 22 includes a first cylinder forming an outer cylinder, a second cylinder forming a first rod / inner cylinder which is inserted into the first cylinder and operates at the first stage, and a second cylinder. It is inserted 2
And a second rod operating at the step. Stroke St ₁ of the first rod (mm) is, 400Mm～500
mm, the stroke St ₂ [mm] of the second rod is
Stroke St ₁ [mm] + (50 to 100 mm)
And the stroke of the second rod is made longer than the stroke of the first rod. The lowering speed of the first rod is (2
5 mm to 45 mm) / sec, preferably 30 mm /
sec, the lowering speed of the second rod is (50 mm to 140
mm) / sec, preferably 95 mm / sec, and the average descending speed is (40 mm to 70 mm) / sec, preferably 45 mm / sec. On the other hand, the rising speed of the first rod is set to be faster than the lowering speed, and (50 mm to 135 m
m) / sec, preferably 85 mm / sec, and the rising speed of the second rod is (100 to 420 mm) / sec.
c, preferably 95 mm / sec, and the average descending speed is (80 mm to 210 mm) / sec, preferably
90 mm / sec. Thus, by making the ascending speed higher than the descending speed, it is possible to reduce the waiting time between the compression and the next stacking operation of the leaf tobacco.

The holding plate 2 is formed by welding from the reinforcing frame 26 and the steel plate 27, and is attached to the mounting bracket 25 at the tip of the second rod at the center. A guide member 28 is attached to the holding plate 2 and the hydraulic telescopic cylinder 22
During extraction and departure, the holding plate 2 is kept horizontal without being inclined. The guide member 28 has a pair of circular guide rods 29, 29 and guide bushes 30, 30 for guiding the guide rod 29 vertically. Guide rod 2
9 is connected by a holding plate 31 at an upper end, and a lower main body portion slidably penetrates through a cylindrical guide bush 30,
The lower end is attached to the holding plate 2. The guide bush 30 is fixed to a mounting bracket 32 for mounting the hydraulic telescopic cylinder 22. An arm member 33 is erected on the mounting bracket 32 so as to protrude upward.
, A lower limit switch 23 of the pressurizing device 3 is attached. Further, a hanging arm member 34 is provided to protrude below the mounting bracket 32, and the upper limit switch 24 is attached to the hanging arm member 34. Lower limit switch 2
The lower limit tog 36 that defines the lower limit of the forward movement of the hydraulic telescopic cylinder 22 that operates the actuator 3 is attached to the holding plate 31, and the upper limit tog 37 that defines the upper limit at the time of retreat is attached to the holding plate 2. The mounting bracket 32 is mounted on the gantry 4 by a frame 35.

The gantry 4 is formed by welding required vertical frame members 41, horizontal frame members 42, lower frame members 43 and the like. Lower frame members 43 are provided on the side and rear lower portions to strengthen the lower portion of the gantry 4 so that it can be transported by a forklift or the like. Further, a support member is provided so as to protrude laterally from the lower frame member 43, and casters 44 are provided at four corners of the lower frame member 43 so that the wheels can be rolled and moved, and the transportation and the box 1 Positioning is made easy.

The control unit 5 including a pump for operating the pressurizing device 3 for pressurizing oil, a control device, and the like is provided on the control unit moving base 46. The control unit moving base 46 is formed by an upper supporting part 47 and a lower supporting part 48, and is connected to the gantry 4 by a connecting fitting 45 so as not to be unnecessarily separated during operation. Bottom member 49 of lower support portion 48
Is formed by welding a frame material on four sides around the frame so that it can be transported by a forklift or the like. In addition, casters 50 are provided at the four corners so that the wheels can be rolled and moved, so that transportation can be easily performed and positioning can be easily performed.

The control unit 5 includes an operation box 51 having a switch, a relay, and a control circuit, a motor 53 with a pump 52, a hydraulic tank 54, an electromagnetic stack valve 55, and the like. The electromagnetic stack valve 55 uses a valve that can be switched not only electrically but also manually. The oil for operating the pressurizing device 3 is pressurized by the pump 52 by the feed oil pipe 56 and the return oil pipe 57 and sent to the hydraulic telescopic cylinder 22. Return oil from the hydraulic telescopic cylinder 22 is returned to the hydraulic tank 54 by a return oil pipe 57 and a feed oil pipe 56. When pressurizing leaf tobacco by lowering the hydraulic telescopic cylinder 22, the electromagnetic stack valve 55 is set so that pressurized oil is sent to the feed oil pipe 56 and returned from the return oil pipe 57 to the hydraulic tank 54.
Conversely, when the hydraulic telescopic cylinder 22 is raised to release the pressurization of the leaf tobacco, the electromagnetic stack valve 55 is switched to send the pressurized oil to the return oil pipe 57 and the feed oil pipe 56.
To the hydraulic tank 54. By configuring the hydraulic circuit in this way, extraction and departure of the telescopic cylinder can be performed quickly.

In assembling the leaf tobacco packing machine of the present invention, the box 1, the moving frame 4 and the control unit 5 are collected, and the box 1 or the moving frame 4 is moved by a caster to position the pressurizing device 3 above the box 1. . After connecting the movable gantry 4 and the control unit 5 with the connection fitting 45, one end of the feed oil pipe 56 is connected to the connection pipe of the supply pipe of the telescopic cylinder 22, and the other end is connected to the feed outlet pipe of the electromagnetic stack valve 55. .
Similarly, one end of the return oil pipe 57 is connected to the connection pipe of the return pipe of the telescopic cylinder 22, and the other end is connected to the return outlet pipe of the electromagnetic stack valve 55. Thereafter, the position of the holding plate 2 may be adjusted to the opening of the box 1.

The pressing operation of the leaf tobacco is performed by assembling a leaf tobacco packing machine, putting a large number of dried leaf tobacco in the box 1, and moving the box 1 so that the pressurizing device 3 of the moving gantry 4 comes to the upper part of the box 1. Then, the holding plate 2 is positioned at the opening of the box 1. Next, the control device is operated, and the presser plate 3 is lowered by the pressurizing device 3 to compress the leaf tobacco. At this time, the telescopic cylinder 22 is lowered to the first stage and then to the second stage to squeeze the leaf tobacco. When the squeezing is stable, the telescopic cylinder 22
Is raised to the first step and then to the second step, and the holding plate 2 is raised. Then, the next dried leaf tobacco is stacked in the box 1, and the pressing plate 2 of the pressurizing device 3 is again lowered to compress the leaf tobacco. Until the weight of the compressed leaf tobacco reaches a predetermined value, perform the pressing operation, and when it reaches the predetermined value,
The pressed leaf tobacco is taken out of the box 1 and bagged.
Then, the pressing operation is repeatedly performed.

The leaf tobacco packing machine configured as described above is configured to squeeze with hydraulic pressure, and only a telescopic cylinder is provided on a movable base without a control device or the like.
Since the length of the cylinder body can be shortened, the height of the device can be reduced, or the length of the device can be shortened, and the pressurizing device can be stabilized. Also, since the pressurizing device is composed of a telescopic cylinder that extracts and retreats a plurality of cylinders having different diameters by fluid pressure, the stroke of the pressurizing device can be lengthened, and labor can be saved by eliminating the need for inserting a shaving plate. . Further, since the lifting and lowering speeds of the holding plate can be increased, the work efficiency can be improved accordingly.

The present invention is not limited to the above-described embodiment, but can be variously modified. Incidentally, in the embodiment described above, the telescopic cylinder is described as a two-stage type, but it may be a three-stage type or a four-stage type. Also, the first stage is formed by a large-diameter cylinder,
Although the operation is started from the large-diameter cylinder, the small-diameter cylinder may be operated first. Further, in the above-described embodiment, a box having an open top for containing a large number of dried leaf tobaccos is used, and the leaf tobacco is stacked, squeezed, and packed from the upper opening. The device of the invention can be applied to the case where the opening for inserting the tobacco is provided on the side of the box. In this case, the telescopic cylinders are arranged not in the vertical direction but in the horizontal direction, in other words, in the horizontal direction with respect to the ground. Then, the extension (extraction) and storage (retreat) of the rod of the telescopic cylinder are performed in the horizontal direction.

[Brief description of the drawings]

FIG. 1 is a front view of a leaf tobacco packing machine according to an embodiment of the present invention.

FIG. 2 is a left side view of the leaf tobacco packing machine.

FIG. 3 is a front view of the pressurizing device of the leaf tobacco packing machine of the present invention.

FIG. 4 is a circuit diagram showing a telescopic cylinder operating hydraulic circuit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Box, 2 ... Holding plate, 3 ... Pressing device, 4
... Mounting stand, 5 ... Control unit, 6 ... Frame member, 6a ... Base frame member, 6b ... Reinforcement fitting,
..Walls, 8 ... Opening / closing walls, 8a ... Small doors, 10 ...
Locking means, 11 ... hinge, 12 ... body, 14.
..Hole for fixing holding plate, 15 ... long hole, 22 ... hydraulic telescopic cylinder, 23 ... lower limit switch, 24 ... upper limit switch, 26 ... reinforcement frame, 27 ... Steel plate, 28 ... guide member, 29
..Guide rods, 30 ... guide bushes, 31 ...
Holding plate, 32: mounting bracket, 33: arm member,
34 ... hanging arm member, 35 ... frame, 45
... Connecting bracket, 46 ... Control unit moving table, 51 ...
Operation box, 52 ... pump, 53 ... motor,
54 ... hydraulic tank, 55 ... electromagnetic stack valve, 56 ... feed oil pipe, 57 ... return oil pipe

Claims (5)

[Claims] 1. A box provided with an opening for receiving a large number of dried leaf tobacco, a holding plate for holding leaf tobacco contained in the box, a pressing device for moving the holding plate forward and backward to compress leaf tobacco. A control device for controlling forward and backward movements of the press plate by the press device, and the press plate and the press device are provided on a movable frame, and the control device is provided on a control table that can be moved separately from the movable frame. A leaf tobacco packing machine, wherein the pressurizing device comprises a telescopic cylinder for extracting and retreating a plurality of cylinders having different diameters by fluid pressure. 2. The leaf cigarette packing machine according to claim 1, wherein the telescopic cylinder comprises first and second stage cylinders, and the first stage cylinder has a larger diameter than the second stage cylinder. 3. The leaf tobacco packing machine according to claim 1, wherein the retreat speed of the telescopic cylinder is 1.5 to 3 times faster than the extraction speed. 4. The leaf tobacco packing machine according to claim 1, wherein switching between extraction and retreat of said telescopic cylinder is performed by a switching valve provided on said control table. 5. The leaf tobacco packing machine according to claim 1, further comprising a guide bar for guiding the holding plate.