JPS63130181A - Box washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a box cleaning device that uses a simple mechanism to clean the inner and outer wall surfaces of a box with a brush and efficiently cleans the box in a short time.

[Conventional technology and problems]

To remove dust and dirt adhering to product transport boxes made of synthetic resin, etc., brush friction or cleaning by spraying a cleaning liquid is generally used.

To perform brush friction cleaning mechanically, a cylindrical brush with bristles on the entire surface is rotated at high speed, pressed against the inner and outer walls of the box, and moved along the inner and outer walls of the box to brush the entire surface of the box. There is.

Furthermore, in order to automate this brush friction, as shown in FIG. One possible method is to move along the rotating brushes 2 and 3.
Since the movement is a two-dimensional movement, there is a problem that the brush moving device becomes complicated.

Moreover, the detection device and control device for changing the moving direction of the rotating brush at each angle of the box are also complicated.

Therefore, if the box is placed on a rotating table and rotated together with the rotating table, and the rotating brush follows the rotating box, the moving mechanism of the rotating brush is a one-dimensional movement that moves the rotating brush back and forth with respect to the box. Since only a mechanism is required, the structure is simple, and since there is no need to change the direction of movement of the rotating brush, the detection and control devices can also be simplified.

However, there are also the following problems when rotating the box.

That is, as shown in FIG. 4(A), a box 1 having a rectangular cross section is placed on a rotating table 4, and rotating brushes 2 and 3 are applied with a constant pressure to approximately the center of the inner and outer wall surfaces of the box L, respectively. When the rotating table 4 is rotated clockwise, the rotating brushes 2 and 3 move outwards of the box 1 following the wall surface of the box 1, as shown in FIG. , Figure 5 (c)
As shown in FIG. 2, when the rotating brushes 2 and 3 reach the corner of the box 1, the rotating brushes 2 and 3, which had been moving toward the outside of the box 1, must now move toward the center of the box 1.

In particular, when the brush 2 that comes into pressure contact with the inner wall side reaches a corner, unless it retreats toward the center of the box 1 at high speed, it cannot follow the approach of the inner wall surface and collides with and interferes with the inner wall surface.

An object of the present invention is to solve this problem, and to automatically clean a box by holding the box between a pair of rotating brushes that press and contact the inner and outer wall surfaces of the box with a constant pressure.

[Means for solving problems]

The present invention is a box cleaning device that cleans a box on a rotating table using a pair of opposing brushes, and the present invention provides a rotating table on which a box is placed and rotated by the drive of an electric motor or the like, and an interior of the box on the rotating table. A pair of movable rotary brushes that contact the wall surface and the outer wall surface, a cylinder for moving the rotary brushes, and a detection device for detecting the rotation angle of the rotary table are provided, and the angle of the rotary table is detected by the detection device. This feature is characterized in that when the cylinder is moved, a rotating brush is moved together with the cylinder.

[For production]

A rotating brush contacts the inner and outer walls of the box placed on a rotary table and rotates with the rotary table at a constant pressure, and moves back and forth along the wall of the box to clean the wall surface with the brush. When the brush reaches the rotating brush, the control device receives a signal from the detection device that detects this based on the rotation angle of the rotary table, and causes the brush on the inner wall side to rapidly retreat, causing the brush on the inner wall side to collide with the inner wall surface. to eliminate interference problems.

〔Example〕

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

In FIG. 1, a box 1 with its opening facing upward is carried in from a direction perpendicular to the drawing and placed on a rotating table 4.

A side guide 5 is provided protrudingly on the rotary table 4 to regulate the position of the boxes being carried in (see FIG. 4).

A shaft 6 projecting downward on the rotary table 4 is pivotally attached to a bearing 8 provided at the center of a rotary table support member 7, and is rotationally driven by a motor M.

The support member 7 is suspended from two lifting shafts 9 connected to both ends thereof, and moves up and down together with the lifting shafts 9 by expansion and contraction of a main cylinder 11 fixed to a cross beam 10 of the cleaning device.

Reference numeral 12 is a guide bush that guides the lifting shaft 9 up and down.

The rotating brushes 2 and 3, which have brush bristles on the entire surface and are cylindrical in shape, are mounted on a guide rail 10a fixed on the cross beam 10 by expansion and contraction of a brush moving cylinder 13 fixed on the cross beam 10.
It is rotated by a pulley 15b which is rotatably driven via a belt 15a by the output shaft of a motor 15 fixed to a movable table 14 that slides on it (see FIG. 3).

A pair of rotating brushes 2 and 3 are arranged on the left and right sides, and can press into contact with the inner wall surface and the outer wall surface of the box 1, respectively, by the pneumatic pressure of the brush moving cylinder 13.

Dogs 16 and 17 are installed below the rotary table 4, and when the corner of the box 1 on the rotary table 4 reaches the rotating brushes 2 and 3, a limit switch 18 provided on the rotary table support member 7 side and 19.

Dogs 16 and 17 are used for boxes 1 of two sizes, respectively.

In FIG. 2, an arrow 20 indicates the direction in which the box 1 is carried into the cleaning device from the outside, and an arrow 21 indicates the direction in which the box 1, which has been cleaned with a brush while leaving the outer bottom surface, is moved to the next process. In the process of passing over a cylindrical rotating brush 22 that rotates around a horizontal axis that is substantially perpendicular to the arrow 21, the outer bottom surface is brush-cleaned.

In the box cleaning apparatus configured as described above, brush cleaning is performed as follows.

WJ carried into the cleaning equipment! stops approximately at the center of the rotary table 4.

Next, the main cylinder 11 is extended and the rotary table 4 is raised.
The side wall of the box l falls between the rotating brushes 2 and 3.

When the rotating table 4 finishes rising, the rotating brushes 2 and 3 are rotated by the drive of the motor 15, the brush moving cylinder 13 is extended, and the rotating brushes 2 and 3 press the inner and outer wall surfaces of the box 1 with a constant pressure. and start brush cleaning.

The turntable 4 starts rotating (see FIG. 4(a)).

As the rotary table rotates 40 times, the rotating brushes 2 and 3 that contact the box 1 with constant pressure move toward the outside of the box 1 (see Fig. 4).
B)).

When the rotating brush 2 reaches the corner of the inner wall of the box 1, the dog 1
6 hits the limit switch 18, and the brush moving cylinder 13 of the rotating brush 2 on the inner wall side starts shortening at a high speed (FIG. 4 (c)).

Therefore, the rotating brush 2 can continue brushing without colliding with the approaching inner wall surface.

Dog 17 and limit switch 19 are used similarly for other box sizes.

When the rotary table 4 rotates 180 degrees, the rotary table 4 is rotated 180 degrees in reverse by a detection device (not shown), returns to its original position, and then stops.

Next, the main cylinder 11 is shortened and the rotary table 4 is lowered,
The box 1 which has been brush-washed with the outer bottom surface left intact is towed in the direction of the arrow 21 shown in FIG. 2, and the remaining outer bottom surface is brush-washed by the rotating brush 22 along the way.

On the other hand, the next box is carried onto the rotating table 4 in the direction of arrow 20.

As described above, the boxes are washed one after another with a brush during tact operation.

〔effect〕

By providing a detection device that detects the rotation angle of the rotating table, a cylinder that operates when the detection device detects the rotation angle, and a pair of rotating brushes, the rotating brushes are brought into contact with the inner and outer walls of the box on the rotating table. This has the practical effect of quickly cleaning the inner and outer walls of the box.

[BRIEF DESCRIPTION OF THE DRAWINGS] Figures 1 to 4 show embodiments of the present invention, with Figure 1 being a front view (sectional view of main parts) of the box cleaning device, Figure 2 being a side view of the same, and Figure 2 being a side view of the same.
FIG. 3 is a plan view of the main parts around the moving table, and FIG. 4 is a plan view of the rotating table showing the state in which boxes are carried in and placed on the rotating table.
FIG. 5 is a schematic diagram illustrating a box cleaning process with a brush, and FIG. 6 is a diagram illustrating a conventional box cleaning method. 1... Node, 2, 3... Rotating brush, 4... Rotating table, 5... Side guide, 6... Shaft, 9... Lifting shaft, 10... Cross beam, 11...・・Main cylinder, 13・・
・Brush moving cylinder, 14...Moving table, 15...
・Motor, 16°17...Dog, 18, 19
...Limit switch, 22...Rotating brush. Patent applicant: Kokusan Metal Industry Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 6

Claims (1)

[Claims] A box cleaning device that cleans a box on a rotary table using a pair of opposing brushes includes a rotary table on which a box is placed and rotated by the drive of an electric motor, etc., and an inner wall surface and an outer wall surface of the box on the rotary table. A pair of rotary brushes that are movable in contact with the sides, a cylinder that moves the rotary brushes, and a detection device that detects the rotation angle of the rotary table are provided, and when the angle of the rotary table is detected by the detection device, A box cleaning device characterized by moving a rotating brush together with a cylinder.