JP2000024907A - Grinding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grinding apparatus which works effectively by automatically washing a hot plate for roasting meat or the like. SOLUTION: A roller for pivotally retaining a work piece is arranged on a caterpillar conveyer 1 for intermittently feeding the work piece (W) at a constant pitch. A grinding portion 3 adapted to be fed the work piece (W) is provided with a grinding machine 11 having a plurality of rotary brushes 11c, a hoisting mechanism 12 and a means for rotating the work piece (W), wherein the rotary brushes 11c pushed against a surface of the work piece scrapes the adherents, such as carbonized adherents by a proceeding process, off the work piece (W) while the work piece (W) is rotated by the work piece rotating means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus for efficiently removing and removing surface deposits such as grilled iron plates in a flow operation.

[0002]

2. Description of the Related Art After use, a grilled meat iron plate is baked with gravy or sauce entrapped on meat, and a large amount of oil dissolved from the meat adheres to the surface, and needs to be cleaned for the next use. . In the cleaning, dirt is washed off with a metal scrubber or the like using a detergent, but most of the work is manually performed.

[0003]

A large number of roasted iron plates for business use have to be processed, and inefficient manual cleaning requires a lot of labor and increases labor costs. In the case of washing by water washing, detergents and oils contained in wastewater cause environmental pollution.

[0004] Therefore, an object of the present invention is to reduce the environmental pollution and to efficiently purify a used grilled iron plate or the like by an automatic operation.

[0005]

As a solution to the above problems, the present invention provides the following polishing apparatus. The apparatus is a means for intermittently feeding the work at a constant pitch while holding the work rotatably at a fixed position on the transport surface, a work rotating means for rotating the work sent to the polishing unit by the intermittent feeding means,
A plurality of motor-driven rotary brushes pressed against the work, a raising / lowering mechanism for the rotary brush, and a polishing angle adjusting mechanism for the rotary brush are provided, and the rotary brush is brought into contact with the entire area to be polished of the work by rotating the work. It is arranged in.

In this polishing apparatus, when the rotary brush is moved up and down together with a brush driving motor or the like, the polishing pressure (brush pressing pressure) increases. It is desirable to provide a weight balance means for adjusting the polishing pressure for canceling the weight by balancing the weight with the weight of the balance weight.

A plurality of intermittent feeding means are provided in parallel, and a plurality of polishing sections provided with the work rotating means, the rotating brush, the elevating mechanism, and the polishing angle adjusting mechanism are provided in the middle of the conveyance path by each intermittent feeding means. When installed, it becomes possible to selectively use polishing units having different specifications, and the compatibility with a variety of workpieces is enhanced.

In addition, the work rotating means using an endless belt (details will be described later) is simple and preferable.

When the power from the motor is transmitted to the rotary brush via the flexible shaft, the polishing angle of the rotary brush can be adjusted by a simple mechanism.

[0010]

When removing the deposits on the grilled iron plate after use in the apparatus of the present invention, the iron plate is baked as a pretreatment and the deposits are carbonized in advance. After finishing the pre-treatment, the iron plate is positioned and set on the conveying surface of the feeding means, fed into the polishing section and rotated, and the attached charcoal on the surface is scraped off with a rotating brush pressed from above.

When the treatment is completed, the iron plate is sent to the next step, and the peeled material is removed by blowing it off with air or the like. Further, in the next step, edible oil is applied to the surface, and the washing is completed.

When this apparatus is used, the operation is fully automated except for setting the iron plate on the conveying surface of the feeding means and taking out the iron plate after the processing, so that a large number of roasted iron plates can be efficiently processed.

[0013] Further, since the dry cleaning is performed without a water washing step, wastewater containing detergent and oil is not generated, and environmental pollution can be prevented without expensive wastewater treatment equipment.

[0014] The polishing apparatus of the present invention can be used not only for removing dirt from a roasted iron plate but also for removing rust on the surface of a similar work or removing a film.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a polishing apparatus according to the present invention will be described with reference to FIGS. 1 of FIG. 1 to FIG.
This is a caterpillar conveyor for intermittently feeding the work W at a constant pitch P. Here, two sets of the conveyors 1 are provided in parallel. Also, on the conveyor surface of each conveyor 1,
Several (four in the figure) rollers that contact the outer periphery of the work W and hold the work are provided with a set of rollers 2 (see FIG. 7 at the same time) at a constant pitch P.

Reference numeral 3 denotes a polishing section arranged in tandem at a pitch P in the middle of the conveying path of each conveyor 1; 4, a weight balance means; 5, a work rotating means provided at the polishing section 3; , 7 is an oiling conveyor with an oil pan connected in front of the conveyor 1, 8 is an oiling unit, 9
Is a fixed frame, and 10 is an electric control operation panel.

The polishing section 3 has three polishing machines 11 each.
, The lifting mechanism 12 of the polishing machine, and the polishing angle adjusting mechanism 1
4 are provided.

As shown in FIGS. 2 and 4, the polishing machine 11
The rotation of the motor 11a mounted on the movable frame 12a is transmitted to the polishing head via the flexible shaft 11b to rotate the rotary brush 11c. The polishing head comprises a spindle case 11d shown in FIG. 4 and a spindle 11f inserted into the case and supported by bearings 11e.
And the rotating brush 11c attached to the spindle 11f
The output shaft of the motor 11a is connected to the spindle 11f by a flexible shaft 11b.

As shown in FIGS. 4 and 5, the lifting mechanism 12 is provided with four cylinder actuators 12b which support the corners of the movable frame 12a on the fixed frame 9, and the four cylinder actuators which are driven synchronously. The movable frame 12a is moved up and down by 12b. A rod 12c is provided at a lower portion of the movable frame 12a, and a holder 13 attached to a lower end of the rod 12c is provided.
The spindle case 11d of the polishing head is mounted at a variable mounting angle.

As shown in FIG. 6, a total of three pairs of opposed mounting ears 14a constituting the polishing angle adjusting mechanism 14 are provided on the outer periphery of the holder 13, and the pair of mounting ears 14a, 1
A spindle case 11d is clamped between set screws 4a with set screws 14b. Spindle case 11d
The mounting posture of the rotary brush 11c can be changed by changing the posture of the rotary brush 11c by loosening the set screw 14b. In order to make this posture change possible with a simple adjustment mechanism, the motor 11a is used here.
And the polishing head are connected by the flexible shaft 11b, but the polishing angle adjustment including the motor is naturally allowed.

In the illustrated apparatus, when the cylinder actuator 12b is actuated, the entire polishing machine 11 including the motor 11a moves up and down. However, when power is transmitted from the motor via the flexible shaft 11b as shown in FIG. Alternatively, the motor 11a can be installed on the fixed frame 9, and only the other elements except the motor can be moved up and down.

As the rotating brush 11c, a commercially available cup brush made of wire flocking was employed.

Here, in order to process a workpiece W as shown in FIG.
c, one of which is placed in a vertical position, and the plane portion at the center of the work is polished with the brush, and the slope portion in the outer peripheral region of the work and the boundary area between the plane portion and the slope portion have the other required inclination angle.
Polished with two rotating brushes.

Next, the weight balance means 4 is shown in FIG.
As shown in FIG. 3, a lever 4b that moves in a seesaw motion with the shaft 4a as a fulcrum is provided on the fixed frame 9, a movable frame 12a is suspended by a wire at one end of the lever 4b, and a balance weight 4c is suspended by the other end. It is configured. The number of the balance weights 4c can be freely increased / decreased (the increase / decrease can be performed while checking the polishing state), and the weight of the element which moves up and down together with the movable frame 12a by the load of the balance weights 4c amplified by the lever ratio is reduced. Counteract.
This makes it possible to control the polishing pressure by the rotating brush 11c and prevent the life of the workpiece and the rotating brush from being shortened due to overpolishing.

As shown in FIGS. 7 and 8, the work rotating means 5 is constituted by arranging two sets of endless belts 5a in parallel on the left and right sides of the work transfer path. Each endless belt 5a has a pulley support frame (not shown) attached to a fixed frame 9, is supported by the pulley support frame, and is bridged between drive pulleys 5b and 5c for synchronous rotation. A work W having a circular diameter (or a circular work support plate) is sandwiched between the work 5a, and the left and right endless belts 5a and 5a are rotated in opposite directions to rotate the work W. The work W (or a circular work support plate) rotates at a fixed position because the position is maintained on the transport surface stopped by the rollers 2 on the conveyor 1. The rotating brush 11c descends and is pressed against the work W, and the work surface is polished.
At this time, it is preferable that the rotating brush 11c is rotated in a direction opposite to the rotation direction of the workpiece W so that the polishing speed is increased by the rotation of the workpiece. Pulley 5b, 5c
May be driven pulleys.

After the polishing is completed, the work W is sent to the air blow device 6, where the adhered matter rubbed off by the brush is blown off and collected by a dust collector or the like (not shown). Thereafter, the conveyer 1 is transferred from the conveyor 1 to the oiling conveyor 7, and the surface is spray-coated with edible oil to complete the dry cleaning process.

In the illustrated polishing apparatus, after the polishing by the rotary brush 11c is performed for about 14 seconds in the preceding polishing section, the workpiece W is sent to the next polishing section by the conveyor 1, where the polishing is performed again for 14 seconds. However, the polishing time in each polishing unit may be arbitrarily determined. In addition, if the entire surface of the workpiece can be uniformly polished by three rotating brushes of the same polishing unit, the processing can be performed only in one of the preceding and subsequent polishing units.

Further, here, the work rotating means 5 is
A configuration in which the central endless belt is shared and the work on the two sets of conveyors is rotated in the reverse direction by a total of three endless belts is preferable in terms of miniaturization and simplification of the apparatus. However, it is not essential to share the central endless belt.

In addition, the air blow device 6, the oiling conveyor 7, and the oiling unit 8 are also only preferred elements, and the omission of these can achieve the purpose of polishing and purification.

[0030]

As described above, in the polishing apparatus of the present invention, the rotating brush is pressed against the workpiece while rotating the workpiece fed to the polishing section by the intermittent feeding means, and the adhered material on the surface is polished and removed. Washing of grilled iron plate etc. can be performed efficiently in a short time.

Further, because of the dry cleaning, there is no need for wastewater treatment, and environmental pollution can be avoided.

The apparatus provided with the balance weight means can appropriately control the polishing pressure to prevent the life of the workpiece and the rotary brush from being shortened due to overpolishing.

Further, a plurality of polishing sections having different specifications are provided in a row or a column, so that a variety of workpieces can be processed.

In addition, when the pair of left and right endless belts constitutes the work rotating means and the power is transmitted to the rotating brush by the flexible shaft, the effect of simplification and miniaturization of the apparatus can be enhanced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a polishing apparatus according to the present invention.

FIG. 2 is a front view of the above device.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is an enlarged view of a part of FIG. 3;

FIG. 5 is a sectional view taken along line VV in FIG. 4;

6A is an enlarged sectional view taken along the line VI-VI of FIG. 4; FIG.

7A is a diagram illustrating an example of a work sandwiched between belts of a work rotating unit, and FIG. 7B is a diagram illustrating a relationship between the work and a position holding roller.

FIG. 8 is a plan view of a work rotating unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Caterpillar conveyor 2 Roller 3 Polishing part 4 Weight balance means 4b Lever 4c Balance weight 5 Work rotating means 9 Fixed frame 11 Polisher 11a Motor 11b Flexible shaft 11c Rotary brush 11d Spindle case 11f Spindle 12 Lifting mechanism 12a Movable frame 12b Cylinder actuator 12C Rod 13 Holder 14 Polishing angle adjusting mechanism 14a Mounting ear 14b Set screw W Work

Claims (5)

[Claims] 1. A means for intermittently feeding a work at a constant pitch while holding a work rotatably at a fixed position on a transfer surface, a work rotating means for rotating the work fed into the polishing section by the intermittent feeding means, A plurality of motor-driven rotating brushes to be pressed, a mechanism for raising and lowering the rotating brush, and a mechanism for adjusting the polishing angle of the rotating brush, wherein the rotating brush is arranged so as to be in contact with the entire area to be polished of the work by rotating the work. apparatus. 2. A plurality of intermittent feeding means arranged in parallel, and a plurality of polishing sections provided with the work rotating means, a rotating brush, a lifting mechanism, and a polishing angle adjusting mechanism in the middle of a conveyance path by each intermittent feeding means. The polishing apparatus according to claim 1, wherein a plurality of polishing apparatuses are provided. 3. The polishing apparatus according to claim 1, further comprising weight balance means for adjusting a polishing pressure for canceling out the weight of the element which moves up and down together with the rotating brush in balance with the weight of the balance weight. 4. A work rotating means is constituted by two sets of endless belts arranged in parallel on the left and right sides of a work conveying path, and a circular work or a circular work is formed by the left and right endless belts bridged between a driving pulley and a driven pulley. 2. The polishing apparatus according to claim 1, wherein the work supporting plate is sandwiched between the endless belts, and the left and right endless belts are rotated in opposite directions to rotate the work. 5. A rod which is moved up and down by an elevating mechanism is provided. At the lower end of the rod, the same number of spindle cases as the number of rotating brushes are attached via the polishing angle adjusting mechanism. 2. The polishing apparatus according to claim 1, wherein the polishing head is constructed by attaching a plurality of polishing heads, and a spindle of each polishing head and an output shaft of the brush driving motor are connected by a flexible shaft.