JPH079873Y2 - Cleaning equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a device for cleaning the inside of a tank with the spraying force of a pressurized cleaning liquid.

[0002]

2. Description of the Related Art Mainly the inside of food tanks and other brewing and fermentation tanks, for example, agitators, heaters, and other equipment attached to the inside of the tank can be washed cleanly from the opening at the top of the tank so that they can be washed thoroughly. There is known a cleaning device in which a nozzle for injecting a pressurized cleaning liquid is provided at the tip of a flexible hose to be used (Japanese Patent Laid-Open No. 63-287585).

In this case, the rear end of the flexible hose is connected to the reel for winding the hose outside the tank, and the cleaning liquid is supplied from the rear end of the hose to the nozzle at the tip through the shaft hole of the reel rotation shaft. There is.

[0004]

By the way, in this conventional example, since the reel is merely rotated to raise and lower the nozzle, the hose may be wound in stages when the reel is wound up. Facility,
For example, there is a problem that it is difficult because the height position of the nozzle cannot be accurately grasped even when intensively washing the deposits on the blade of the stirrer. Further, the nozzle or the like may be caught by, for example, the auxiliary equipment, and if the reel is continuously rotated in this state, the nozzle or the auxiliary equipment may be damaged.

[0005]

In order to solve such a problem, the present invention is provided with a nozzle for injecting a pressurized cleaning liquid at the tip of a flexible hose that is lowered and lowered from the opening in the upper part of the tank to provide flexibility. The rear end of the hose is connected to the reel that winds the hose, and in the cleaning device that supplies pressurized cleaning liquid from the rear end of the hose to the nozzle at the tip through the rotation shaft of the reel, it rotates in synchronization with the reel.
The screw rod that is parallel to the reel and
Align the hose on the reel and wrap it around this screw rod.
Screw the hose support block that leads the drawer of the
Synchronize the support block with the reel rotation before the reel.
And the stroke speed corresponding to the hose winding pitch speed.
The tensioner that reciprocates in the rotation axis direction of the reel at a time, while bending from the hose support block into the inside of the tank while curving in a bow, and the tensioner that supports the hose with a predetermined spring force from the inside. It is characterized by having a limit switch for preventing overtension which is activated by the movement of.

[0006]

By providing the hose support block, the hose is prevented from being wound around the reel, so that the height position of the nozzle in the tank can be accurately grasped from the stroke position of the hose support block. In addition, even if the nozzle or the like gets caught in ancillary equipment in the tank when the hose is wound up, the tensioner that responds to the degree of tension of the hose automatically stops the rotation of the reel via the limit switch for preventing overtension. Will also be possible.

[0007]

1 and 2, reference numeral 1 is a reel around which a flexible hose 2 is wound, and the reel 1 is supported by bearings 5 on both sides of a machine frame 4 via a rotary shaft 3. The flexible hose 2 has a nozzle for injecting a pressurized cleaning liquid at its tip, and the rear end of the hose 2 is connected to a pipe 6 from a hollow passage in the rotating shaft 3 on the reel 1. A pulley 7 is connected to one end of the rotary shaft 3, and a joint 8 is provided at the other end for connecting the hollow passage in the shaft 3 to a pump (not shown) as a cleaning liquid supply means.

Reference numeral 9 is a hose support block for leading the aligned winding of the hose 2 around the reel 1 and its withdrawal. The block 9 is provided with a screw hole 11 to be screwed into the screw rod 10, and when the screw rod 10 rotates, several blocks are provided. It moves along the guide rod 12. The screw rod 10 and the guide rod 12 are arranged parallel to the reel rotation shaft 3. A pulley 13 is connected to one end of the screw rod 10. Reference numeral 14 denotes a pair of rollers which guide passage of the hose 2 at the tip of the block 9.

Reference numeral 15 is a forward / reverse rotatable electric motor (motor) for driving the reel 1 and the hose support block 9, and pulleys 16 and 17 on the rotating shafts thereof are belts 18 and 1, respectively.
It is connected to the pulleys 7 and 13 via 9. The hose support block 9 is provided between the pulley 17 and the motor rotation shaft.
A speed reducer (not shown) that adjusts the stroke speed of the above to the hose winding pitch progress of the reel 1 is provided. The pulley 16 is directly connected to the motor rotation shaft. Reference numeral 20 is a tension pulley of the belt 18.

21 to 25 are limit switches for detecting the height position in the tank from the stroke position of the hose support block 9 in controlling the drive of the cleaning liquid supply pump and the motor 15, and these limit switches 21 ~ 2
The block 5 is supported on several rods 26 that extend horizontally in the stroke direction of the block 9 so that the position of the block 5 can be adjusted. Reference numeral 27 denotes a dog which operates the limit switches 21 to 25 and is attached to the hose support block 9.

28 is a reel 1 to a hose support block 9
The rod 28 is a hanger rod as a tensioner that presses the hanging hose 2 while curving in a bow shape from the inside with a predetermined spring force, and the rod 28 is swingably supported in the vertical direction via levers 29 at both ends. And hanger rod 28
A limit switch 29 for hose overtension prevention is provided below the hose.
Is strained and pushed by the hanger rod 28, the motor 15
Stop rotating.

At the lower part of the machine frame 4, the stays 30 on both sides are connected by two parallel rods 31 so that the hose 2 lowered and lowered into the tank is not twisted by the cleaning liquid under pressure. A gate 32 that restricts the movement of the hose 2 is formed.

Next, the operation will be described. This device is, for example, a transfer device 36 that moves on the ceiling of a factory as shown in FIGS.
And is carried above the tank 40. In FIG. 4, reference numeral 41 is a stirrer, and a rotary shaft 42 thereof is provided with stirrer blades 43 arranged in three stages above and below. Reference numeral 44 denotes an opening for washing which is arranged on both sides of the agitator 41 above the tank 40, and is opened and closed by a ball valve 45. Reference numeral 46 indicates a flexible pipe facility.

When the motor 15 of the device 35 is driven in the forward rotation direction, the hose 2 is pulled out from the reel 1,
The nozzle 37 is lowered into the inside of the tank 40 through the opening 44. The hose tip block 9 slowly moves forward from the front end of the reel 1 to the rear end side by the forward rotation of the screw rod 10, and sequentially operates the limit switches 21 to 25 by the dog 27 in the movement process. The limit switches 21 to 25 are set in advance at the drive start position of the cleaning liquid supply pump, the temporary stop position of the motor 15 corresponding to the stirring blade 43 in the tank 40, and the like.

As a result, the nozzle 37 injects the pressurized cleaning liquid from the pump while descending inside the tank 40, and intensively cleans the adhering substances such as the stirring blades 43 at the temporary stop position of the motor 15. When the nozzle 37 eventually reaches the lower limit position, the reverse rotation of the motor 15 causes the reel 1 to rotate.
Winds up the hose 2 and raises the nozzle 37. The hose support block 9 returns to the front end side of the reel 1 and operates the limit switches 21 to 25 in the reverse order to the above.

When the washing of the inside of the tank 40 is completed in this way, the motor 15 is further rotated in the reverse direction to wind up the hose 2 and raise the nozzle 37 to the gate 32.

Therefore, in this case, since the hose support block 9 for leading the aligned winding of the hose 2 around the reel 1 and its withdrawal is provided, the hose 2 is prevented from being wound around the reel 1 in a stepwise manner. The height position of the nozzle 37 in the tank 40 can be accurately detected by the limit switches 21 to 25 arranged in the stroke direction. That is, the concentrated cleaning of the stirring blade 43 and the like as described above can be effectively performed. Further, the nozzle 37 and the like may sway due to the jet reaction force and be caught by, for example, the stirring blade 43. However, if the reel 1 is driven in the winding direction in this state, the hose 2
Since the hanger rod 28 that responds to the tension of the motor operates the limit switch 29 to stop the rotation of the motor 15, it is possible to avoid the problem that the hose 2 is forcibly wound up and the nozzle 37 or the like is damaged.

[0018]

In summary, according to the present invention, since the hose is prevented from being wound around the reel by attaching the hose support block, the height position of the nozzle can be accurately detected from the stroke position of the hose support block. It is effective for controlling the elevation of the nozzle in the tank. Also, even if the nozzle gets caught in something inside the tank when the hose is wound up, the limit switch for over tension prevention operates due to the movement of the tensioner due to the tension of the hose, which allows the reel rotation to be stopped automatically. It is possible to avoid the problem that the hose is forcibly rolled up and the nozzle or the like is damaged.

[Brief description of drawings]

FIG. 1 is a front view of an apparatus showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is likewise an explanatory diagram of a usage state.

FIG. 4 is a supplementary explanatory diagram of FIG.

[Explanation of symbols]

 1 Reel 2 Flexible Hose 9 Hose Support Block 10 Screw Rod 15 Motor 28 Hanger Rod 29 Overtension Prevention Limit Switch 37 Nozzle 40 Tank

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B66D 1/58 Z 7633-3F // B08B 101: 02

Claims (1)

[Scope of utility model registration request] 1. A nozzle for injecting a pressurized cleaning liquid is provided at the tip of a flexible hose that is lowered and lowered from the opening at the top of the tank, and the rear end of the flexible hose is connected to a reel around which the hose is wound. In a cleaning device in which pressurized cleaning liquid is supplied from the rear end of the hose to the nozzle of the hose through a rotating shaft, the cleaning device that rotates in synchronization with the reel
Place the cru rod in parallel with the reel and
Align winding of hose on reel and pull it on cru rod
Screw the hose support block that leads
Place the support block in front of the reel in synchronization with the reel rotation.
At a stroke speed corresponding to the hose winding pitch speed of
While reciprocating in the direction of the axis of rotation of the hose, the tensioner that supports the hose that is bent from the hose support block into the inside of the tank while curving in a bow with a predetermined spring force from the inside and the tensioner that responds to the degree of tension in the hose A cleaning device equipped with a limit switch for preventing overtension which is activated by movement.