JPH0314129Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cleaning device for iron plates used for grilling meat, etc.

(Conventional technology) Iron plates for grilling food such as yakiniku that are used on the stove in restaurants, restaurants, etc. not only have deposits that become torrefied and difficult to remove, but also adhere to and stain the food that will be grilled next time. Therefore, it is often necessary to polish and clean it. Conventionally, this type of cleaner for iron plates has a wire wheel attached to a rotating horizontal shaft driven by a motor, and the rotation of the wire moves the surface of the iron plate from one direction to polish it, so the polishing direction is not constant. This creates a clean leak area, and since the contact pressure between the two is adjusted by a spring, it must be readjusted every time the thickness of the steel plate changes, and the same happens when the wire wears out. be.

There is also a dishwasher disclosed in Japanese Utility Model Publication No. 28-9576, in which a brush is attached to the rotating vertical shaft, and an iron plate holding base plate coaxial with the vertical shaft is installed so that it can only move up and down. However, it is extremely unsuitable for rectangular iron plates because it requires the use of a brush with a diameter larger than the diagonal.

(Problems to be solved by the invention) In view of the above, the present invention rotates the wire wheel 360 degrees relative to the iron plate to eliminate blind spots and completely clean the entire surface, and at the same time reduces the force of pressing the wire against the iron plate. It provides a device that always maintains a constant value regardless of the thickness of the iron plate or the wear of the wire.

(Means for solving the problem) The present invention aims to solve the problem mentioned in the previous section, and includes a rotary table for placing the iron plate that is rotated by a motor on the top of the base. A horizontal frame supported by a base is provided above the table, and a shaft support piece erected on the frame is provided with a horizontal frame supported by a base.
A rotary shaft having a feed screw formed on its circumference and a wire wheel at its lower end is passed freely up and down through a pulley rotated by the motor with a rotation center offset from the rotation center of the rotary table, and the feed screw of the rotary shaft is A worm wheel that meshes with the worm wheel is pivotally supported on a shaft support piece on the frame, a brake drum is coaxially integrated with the worm wheel, and a brake shoe whose pressure contact force can be freely adjusted is brought into contact with the brake drum. The feature is that the iron plate is cleaned evenly and the contact pressure of the wire against the iron plate is always kept constant regardless of changes in the thickness of the iron plate or wear of the wire.

(Function) The present invention uses a wire wheel at the lower end of a rotating shaft whose center of rotation is offset from the center of rotation of the table by placing and fixing an iron plate in the center of a table that rotates slowly by motor drive using appropriate positioning means. Polish the surface to remove any burnt marks. In this case, the rotating shaft is lowered as its feed screw engages with the fixed worm wheel due to the contact pressure of the brake shoe.
When the tip of the wire of the wire wheel comes into contact with the iron plate and its rotational force exceeds the contact pressure of the brake shoe, the worm wheel is turned in the opposite direction to eliminate the downward force on the rotating shaft, stopping the downward movement and rotating at the same position.

When the pressure of the brake shoe is released from the brake drum, which is coaxially integrated with the worm wheel, the wire brush rotates in contact with the steel plate due to the weight of the rotating shaft, etc., and by adjusting the pressure of the brake shoe against the drum, the contact between the two can be achieved. Pressure is regulated.

(Embodiments and effects of the embodiments) A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a longitudinal side view, showing a base 1, a column 2 erected at the rear thereof, and a partition plate 2 at the front of the column 2.
A machine frame is constituted by a horizontal frame 3 supported at each upper end of the partition plate 2a, a vertical motor M is fixed to the rear surface of the partition plate 2a, and the motor shaft is made to protrude vertically.
A pulley 4 attached to a lower protruding part is protruded into the hollow part on the lower surface of the base 1, and a pulley 5 is attached to the upper part and protruded to the upper surface of the frame 3.

A drive shaft 7 that penetrates the center of the base 6 downward and projects into the cavity is supported on the upper surface of the base 1, and a large-diameter driven pulley 8 is provided at the lower end of the drive shaft 7. A belt is hung between the large-diameter pulley 10 loosely fitted or fixed on the intermediate shaft 9, and the large-diameter pulley 1
A belt is applied to the small diameter pulley 11 which rotates integrally with the driven pulley 8, and the drive shaft 7 is rotated. A rotary table 12 consisting of a large-diameter circular plate that rotates on a pedestal 6 is removably fixed to the upper end of the drive shaft 7, and the lower surface of the rotary table 12, on which the polishing pressure of the wire wheel 22 is applied, is mounted on the base 1. It is supported by a supporting roller 13. Several positioning pieces 14 are attached to the upper surface of the table 12 around the center of rotation so as to be in contact with the side periphery of the iron plate W. The positioning pieces 14 can also be fixed while being freely movable and adjustable.

An upper shaft support piece 15 and a lower bearing 16 are provided on the frame 3, and the upper shaft support piece 15 has a rotation center offset with respect to the drive shaft 7, which is the rotation center of the rotary table 12, and a belt is hung around the above-mentioned upper pulley 5. A rotating shaft 1 in which the center of a large-diameter pulley 20 is rotatably supported by a shaft support piece 15 on the upper surface, and a feed screw 18 is formed on the circumferential surface at the center of the pulley 20 and at each center of the shaft support piece 15 and the lower bearing 16.
7, and the large pulley 20 is connected in the rotational direction by a key 21 that fits into the keyway 19 of the rotating shaft 17.

A circular wire wheel 22 is attached to the lower end of the rotating shaft 17 in a freely exchangeable manner. The wire 23 of the wire wheel 22 is positioned so as to rotate in a range slightly beyond the center of the drive shaft 7, which is the center of rotation of the rotary table 12 (in FIG. 1, to the left of the center of rotation of the drive shaft 7).

A notch 24 is provided on the side surface of the shaft support piece 15 to expose the rotating shaft 17, and a bearing piece 25 provided on the frame 3
A worm wheel 27 rotatably supported by a shaft 26 passed through is engaged with a feed screw 18 of a rotating shaft 17. Further, a brake drum 28 is coaxially integrated with the worm wheel 27, and the brake is supported so as to be movable forward and backward with a spring interposed therebetween, facing the tip of an adjustment screw 30 screwed into a shaft support piece 29 provided on the frame 3. brake drum 2
Press against the circumferential surface of 8. The other 32 is a safety cover.

In this embodiment, a rotary table 12 is rotated at a low speed by a drive shaft 7 which is rotated at a reduced speed by a lower pulley 4 and an intermediate shaft 9 etc. by driving a motor M, and at the same time a large rotary table 12 is rotated by an upper pulley 5. Pulley 2
0, the rotating shaft 17 rotates at a rotation center offset from the rotation center of the drive shaft 7, and the wire wheel 2
2, the wire 23 contacts the upper surface of the iron plate W attached to the rotary table 12 and rotates at a relatively high speed (FIG. 3). Therefore, the iron plate W is polished in all directions through 360°. Although the rotational direction of the rotating shaft 17 is restricted by the key 21 with respect to the large pulley 20, it can freely move up and down in the axial direction even while rotating.
When there is no load, the feed screw 18 of the shaft 17 engages with the worm wheel 27, which remains unrotatably fixed until a certain rotational force is reached, due to the braking of the brake drum 28 by the pressure of the brake shoe 31. Therefore, the rotating shaft 17 descends with almost no rotation.

And the wire wheel 22 at the lower end of the rotating shaft 17
When the wire 23 contacts the iron plate W and becomes unable to descend, the rotational force of the rotating shaft 17 exceeds the braking force of the brake drum 28, and the worm wheel 27 is rotated by the feed screw 18, so that the rotating shaft The downward force of the wire wheel 22 is eliminated.
rotates in contact with the iron plate W under constant contact pressure on the same level surface. This series of operations is automatically performed without being influenced by the thickness of the iron plate W.

In addition, by increasing or decreasing the pressure of the brake shoe 31 against the brake drum 28 using the adjustment screw 30 and adjusting the braking force as appropriate, the contact pressure with the iron plate W can be adjusted, thereby reducing the burning of deposits. Select according to the degree of attachment.

After the cleaning work is completed, the worm wheel 27 is rotated by a handle connected to the worm shaft 26, and the rotary shaft 17 is raised by hand to take out the iron plate W from the rotary table 12. As can be seen from the above, all operations except for attaching and removing the iron plate W to and from the rotary table 12 and lifting the rotary shaft 17 are performed automatically.

(Effects of the invention) As described above, the present invention has the iron plate, which rotates gently on the rotary table together with the table, and the wire wheel at the lower end of the rotary shaft, so that the rotation centers of the iron plate and the wire wheel at the lower end of the rotation shaft are offset from each other, so that each rotates with a separate rotation center. The surface of the iron plate is polished from all angles by a wire wheel 22 having an outer diameter smaller than the radius of the iron plate, so that there is no leakage. In addition, the contact pressure of the wire to the surface of the steel plate is always kept constant by the worm wheel that meshes with the feed screw of the rotating shaft and the brake shoe that presses against the integrated brake drum. There is no need to make adjustments each time there is a change in wear, etc., and conversely, it is possible to adjust the pressure contact force of the brake shoe to adjust the contact pressure between the two depending on the seizure of the iron plate surface. It has excellent effects.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional side view, FIG. 2 is a plan view taken along the line A-A in FIG. 1, FIG. The figure is a perspective view of main parts. 1...Base, 3...Frame, 7...Drive shaft,
12...Rotary table, 15...Shaft support piece, 17...
...Rotating shaft, 18...Feed screw, 19...Keyway,
20... Large pulley, 21... Key, 22... Wire wheel, 23... Wire, 27... Worm wheel, 28... Brake drum, 30...
...adjustment screw, 31...brake shoe.

Claims (1)

[Scope of utility model registration request] A rotary table for placing a steel plate rotated by a motor is provided on the top of the base, a horizontal frame supported by the base is provided above the table, and a shaft support piece erected on the frame has a A rotary shaft formed with a feed screw and equipped with a wire wheel at the lower end is passed freely up and down through a pulley rotated by the motor at a rotation center offset from the rotation center of the rotary table, and is engaged with the feed screw of the rotary shaft. A worm wheel is pivotally supported on a shaft support piece on the frame, a brake drum is coaxially integrated with the worm wheel, and a brake shoe whose pressure contact force can be freely adjusted is in contact with the brake drum. A cleaning device for iron plates for grilled meat, etc.