JPH0524645Y2 - - Google Patents

Description

[Detailed description of the invention] This invention supplies pressure fluid such as pressurized air to devices such as suction fingers attached to the conveyor in certain traveling areas of the conveyor, and supplies negative pressure in other fixed traveling areas. It is related to the device.

[Conventional technology]

Conveyors are used not only to convey articles, but also to perform various processing or processing on articles while conveying them.

In the latter case, there are two types: an intermittent running type where the conveyor stops running at a processing station and then moves to the next processing station, and a continuous running type where the conveyor runs continuously without stopping and processing is performed while it is running. There is.

Since the processing equipment moves along with the goods during continuous running, the processing equipment must be attached to the conveyor that conveys the goods, or it must be attached to a traveling device that runs parallel to the conveyor that conveys the goods. Must be installed.

When this processing equipment is driven by a pressure fluid such as air pressure, or when vacuum suction is required, a device for supplying pressure fluid or negative pressure to the moving equipment is required.

As an example, FIG. 5 shows the movement of the equipment when automatically removing the covering bag B covering the fruit F such as a pear.

In FIG. 5A, a fruit F is placed on a tray 1 on a conveyor (not shown), and the lower end of a covering bag B covering the fruit F is cut open.

Further, directly above the fruit F, there is a suction finger 2 attached to another conveyor (not shown) that runs in the same direction and at the same speed as the conveyor on which the fruit F is placed.

The suction finger 2 has two arms 4 and 5 that are opened and closed using a pin 3 as a fulcrum, and suction pads 6 for suctioning the covering bag B are provided at the tips of the arms 4 and 5.

The suction finger 2 has a lifting shaft 7 in the center, and a suction pad 8 provided at the lower end of the lifting shaft 7 is shown in contact with the upper surface of the covering bag B with a small contact pressure.

Next, as shown in FIG. 5B, after the arms 4 and 5 are lowered, as shown in FIG. The suction pads 6 and 8 suction the covering bag B, and then the arms 4 and 5 open as shown in FIG.
As shown in Figure E, the suction fingers 2 rise to remove the covering bag B from the fruit F.

After the suction finger 2 moves away from the fruit F due to the rotation of the conveyor, the suction pads 6 and 8
At the same time, the suction force of the suction pads 6 and 8 is removed by blocking the pipe line communicating with the negative pressure source, and air is discharged from the pneumatic pipe line (not shown) provided in the suction finger 2 to remove the covering bag B. Blow it away into the dust suction duct (not shown).

As described above, the covering bags B can be automatically and continuously removed from the fruits F on the trays 1 arranged side by side on the conveyor.

[Problem that the invention attempts to solve]

As mentioned above, pressure fluid and negative pressure are required for equipment such as suction fingers fixed on the conveyor, and piping lines connected to the pressure fluid source and negative pressure source are required, respectively. Since the pipe rotates with the conveyor, it is difficult to connect the pipe. Therefore,
Inside the endless belt that rotates parallel to the conveyor,
A pressure fluid chamber and a negative pressure chamber are provided in sliding contact with the endless belt, and a conduit provided in the endless belt is connected to the device via a telescopic tube, and the endless belt is rotated in the same direction and at the same rotation speed as the conveyor. It is conceivable to install rotating pressure fluid and negative pressure supply devices.

However, a gap occurs between the pressure fluid chamber and the negative pressure chamber and the endless belt that rotates while slidingly contacting them, and this gap reduces the degree of negative pressure in the negative pressure chamber. Pressure decreases.

In a negative pressure chamber, this gap tends to be closed because the negative pressure attracts the endless belt, so it is easy to seal the gap, but in a pressure fluid chamber, the pressure fluid presses the endless belt. Because it expands the space
Difficult to seal between.

The present invention has been made to solve these problems.

[Means for solving problems]

The present invention supplies pressurized fluid to equipment installed on a conveyor in certain running areas of the conveyor, and supplies negative pressure in other fixed running areas, so that the above-mentioned equipment performs predetermined operations in predetermined running areas. A sealed space is provided inside the rotating magnetic belt by two walls that seal the circumferential surface of the magnetic belt, and a partition plate that divides the sealed space is used to prevent pressure. A pressure fluid chamber communicating with a fluid source and a negative pressure chamber communicating with a negative pressure source are provided, a conduit communicating with the sealed space is provided in the magnetic belt, and a packing is provided on the outer peripheral surfaces of the pressure fluid chamber and the negative pressure chamber. A groove is provided, a magnetic section seal is inserted into the packing groove, and a conveyor that rotates in the same direction and at the same rotation speed as the magnetic belt is provided around the outer circumference of the magnetic belt. One end of the telescopic tube was connected to the installed equipment, and the other end was connected to the conduit.

[Effect]

With the above configuration, the conveyor on which the equipment is attached and the magnetic belt rotate in the same direction and at the same rotation speed, but the conduit of the magnetic belt is under pressure within a predetermined running area as the magnetic belt rotates. It comes into contact with and separates from the fluid chamber or negative pressure chamber. The magnetic section seal inserted into the seal groove of the pressure fluid chamber and the negative pressure chamber slides into contact with the magnetic belt in a state of suction and close contact, and the seal is inserted between the magnetic belt and the pressure fluid chamber and the negative pressure chamber. Completely seal the space between.

In addition, since the pipe line is connected to the equipment on the conveyor via the telescopic pipe, the equipment communicates with the pressure fluid chamber in a certain traveling area to receive pressure fluid, and in other certain traveling areas it connects to the negative pressure chamber. It communicates with and receives negative pressure.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a longitudinal sectional view of the present device, FIG. 2 shows a sectional view taken along the line Y-Y in FIG. 2, and FIG.

In FIG. 2, a geared motor 9 is connected to an intermediate shaft 11 through a coupling 10, the intermediate shaft 11 is supported at both ends by bearings 12, and sprockets 13 and 14 are fixed to the intermediate shaft 11.

A drive shaft 15 is located on the left side of the intermediate shaft 11 with both ends connected to bearings 1.
6, and the drive shaft 15 has a sprocket 1.
7, 18 and 19 are fixed.

Further, to the right of the intermediate shaft 11, a driven shaft 20 is supported at both ends by bearings 21, and a sprocket 22 is fixed to the driven shaft 20.

A chain 23 is wound around the sprockets 13 and 17, and a chain 24 is wound around the sprockets 18 and 22.

A driven shaft 25 having the same axis as the driven shaft 20 is supported by a bearing 26, and a sprocket 27 is fixed to the driven shaft 25.

A chain 28 is wound around the sprockets 19 and 27.

Hollow shaft 29 into which the drive shaft 15 is inserted
Two pulleys 30 are mounted on the shaft, and both ends are supported by bearings 31.

A sprocket 32 is fixed to the hollow shaft 29, and a chain 33 is wound around the sprockets 32 and 14.

A driven shaft 35 having two pulleys 34 attached thereto is supported by a bearing 36 on the right side of the hollow shaft 29, and a magnetic belt 37 is wound around the pulleys 34 and 30.

As the geared motor 9 rotates, the chains 24 and 28 rotate in the same direction and at the same rotation speed as the magnetic belt 37.

Two walls 38 are arranged inside the magnetic belt 37, and the outer peripheral surface of the wall 38 is connected to the magnetic belt 37.
in close contact with the inner circumferential surface of the

As shown in the Y-Y sectional view in FIG. 3 and the perspective view in FIG.
A magnetic belt seal 40 is inserted into the packing groove 39, and the space between the wall body 38 and the magnetic belt 37 is completely sealed, and a sealed space is formed inside.

The sealed space, as shown in Figures 1 and 4,
It is divided into three parts by a partition plate 41 attached to the two walls 38, and a pressure fluid chamber 42, a negative pressure chamber 43, and a pressureless chamber 44 are formed.

The pressure fluid chamber 42 has a cylindrical portion 4 through which the hollow shaft 29 is inserted.
5, and the pressureless chamber 44 has a hole 46 through which the driven shaft 35 is inserted (see FIG. 2).

A packing groove 47 is provided along the pressure fluid chamber 42 on the outer peripheral surface of the wall 38 and the partition plate 41 that form the pressure fluid chamber 42, and a magnetic section seal 48 is inserted into the packing groove 47 ( (See Figure 3).

A packing groove 49 is similarly provided in the negative pressure chamber 44, and a magnetic section seal (not shown) is inserted into the packing groove 49 (see FIG. 4).

The pressure fluid chamber 42 has a hole 50 passing through the wall 38.
A pipe line communicating with a pressure fluid source (not shown) is connected to the hole 50, a hole 51 penetrating through the wall 38 is provided in the negative pressure chamber 43, and a negative pressure source (not shown) is connected to the hole 51. (not shown) is connected to the pipe (see FIG. 1).

A plurality of holes 52 penetrate through the magnetic belt 37, and a rotary joint 53 attached to the outer peripheral surface of the magnetic belt 37 is connected to each hole 52. A conduit is formed that communicates the sealed space inside the body belt 37 with the outside.

Connecting rods 54 are connected to the two chains 24 and 28 at multiple locations, and devices 55 such as suction fingers are attached to the connecting rods 54 to form a conveyor that allows the devices 55 to run (see Figs. 1 and 28). (See Figure 2).

The device 55 and the rotary joint 53 are connected by an elastic tube 56.

Note that reference numeral 57 shown in FIG. 4 is a support leg that supports the wall body 38.

The operation of the pressure fluid and negative pressure supply device configured as above will be explained.

The rotation of the geared motor 9 is transmitted to the intermediate shaft 11, and the sprocket 1 fixed to the intermediate shaft 11
3 and 14 rotate, and sprocket 13 is connected to chain 2.
The sprocket 17 is rotated through the chain 33, and the sprocket 14 is rotated through the chain 33 to the sprocket 32.
Rotate.

The sprocket 17 rotates two chains 24 and 28 together with a coaxial sprocket 19, and the sprocket 32 rotates a magnetic belt 37 via a pulley 30.

The two chains 24 and 28 are conveyors that rotate the device 55 attached to the connecting rod 54, and rotate together with the magnetic belt 37 at the same rotation speed in the direction of arrow C shown in FIG. A magnetic section seal 48 inserted into the packing groove 47 of the pressure fluid chamber 42
Since the magnetic belt 37 slides in close contact with the inner circumferential surface of the magnetic belt 37, the pressure fluid does not leak to the outside, and the pressure in the pressure fluid chamber 42 is maintained.

The magnetic section seal inserted into the packing groove 49 of the negative pressure chamber 43 slides into contact with the inner peripheral surface of the magnetic belt 37 in a suction-adhered state, so that external air flows into the negative pressure chamber 43. There's nothing to do,
The degree of negative pressure in the negative pressure chamber 43 is maintained.

Holes 52 provided in the magnetic belt 37 supply negative pressure to the equipment 55 through the telescopic pipe 56 in the running area in contact with the negative pressure chamber 43, and supply pressure to the equipment 55 in the running area in contact with the pressure fluid chamber 42. Supply fluid.

Therefore, the device 55 receives negative pressure in the travel zone corresponding to the travel zone where the hole 52 contacts the negative pressure chamber 43, and the suction pad or the like provided in the device 55 performs a suction operation so that the hole 52 contacts the pressure fluid chamber 42. Clamps and the like can be operated by supplying pressure fluid in the traveling section corresponding to the traveling zone adjacent to the vehicle.

In the above embodiment, one pressure fluid chamber and one negative pressure chamber were provided in the sealed space inside the magnetic belt, but a plurality of each may be provided.

Also, although one telescopic tube is connected to each device, multiple telescopic tubes connected to the conduit of the magnetic belt may be connected to each device to provide each device with multiple functions. .

〔effect〕

The present invention has the following effects.

(1) Since the magnetic belt conduit and the equipment on the conveyor are directly connected by a telescopic tube, there are no sliding surfaces in the pressure fluid and negative pressure supply path, making it difficult for accidents such as fluid leakage to occur.

(2) Since the conveyor carrying the equipment and the magnetic belt travel in the same direction and at the same rotation with approximately equal spacing, the amount of expansion and contraction of the telescopic tube connecting the magnetic belt conduit and the equipment is extremely small; Also, it is not subject to twisting.

Therefore, the device is highly durable and has few failures.

(3) Since the degree of negative pressure in the negative pressure chamber is maintained, and the pressure in the pressure fluid chamber, which is particularly susceptible to leakage, is also maintained, there is an advantage that the equipment operates smoothly and reliably.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention.
The figure is a vertical sectional view of the pressure fluid and negative pressure supply device, the second
The figure is a sectional view taken along line X-X in figure 1, and figure 3 is a cross-sectional view along line Y in figure 2.
-Y sectional view, FIG. 4 is a perspective view of the wall, and FIG. 5 is an explanatory diagram of the operation of the suction finger. 15... Drive shaft, 20, 25... Driven shaft, 2
4,28...Chain, 29...Hollow shaft, 30,3
4...Pulley, 37...Magnetic belt, 38...
... Wall body, 39, 47, 49 ... Packing groove, 40
... Belt seal, 41 ... Partition plate, 42 ... Pressure fluid chamber, 43 ... Negative pressure chamber, 48 ... Section seal, 50, 51, 52 ... Hole, 53 ... Rotary joint, 54 ... ... Connecting rod, 55 ... Equipment, 56 ... Telescopic pipe.

Claims (1)

[Scope of utility model registration request] A sealed space is provided inside the rotating magnetic belt by two walls that seal the circumferential surface of the magnetic belt, and a pressure fluid source is communicated with the pressure fluid source by a partition plate that divides the sealed space. A negative pressure chamber communicating with the fluid chamber and a negative pressure source is provided, a conduit communicating with the sealed space is provided in the magnetic belt, a packing groove is provided on the outer peripheral surface of the pressure fluid chamber and the negative pressure chamber, and the packing groove is provided in the outer peripheral surface of the pressure fluid chamber and the negative pressure chamber. A magnetic section seal is inserted into the groove, and a conveyor that rotates in the same direction and at the same rotation speed as the magnetic belt is arranged on the outer peripheral surface of the magnetic belt,
A pressure fluid and negative pressure supply device characterized in that one end of a telescopic tube is connected to a device mounted on the conveyor, and the other end of the extensible tube is connected to the conduit.