JPH0718741Y2 - Work surface wiping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a wiping device which is used when, for example, a glaze line for pottery production is used to wipe off glaze after glaze.

(Prior Art) Conventionally, for example, when manufacturing a ceramic product with a lid such as a low tank for sanitary ware, a dried or unglazed molded body is glazed before being baked, and then fired between it and the tank lid. In order to eliminate an assembly error due to shrinkage or the like, it is common to perform firing with the lid on. However, when the glaze applied on the upper surface of the tank is covered with the lid and baked, the two adhere to each other due to the glaze, and therefore it is necessary to wipe off the glaze on the upper surface of the tank after the glaze. For this reason, conventionally, for example, an endless wiping belt is circulated, and the work is performed using a wiping device that allows the belt to pass through the cleaning liquid tank while sliding on the tank upper surface to wipe off the glaze. Was there.

(Problems to be solved by the invention) However, in the case of the conventional device as described above, if the type of the tank to be handled is changed, the height of the wiping surface of the wiping belt is changed, which requires a major design change. However, there was a problem that the cost was high and the line was stagnant. or,
If there is a problem in height adjustment, the wiping effect is impaired and sticking is caused, and there is also a problem that the quality of the product is deteriorated by the wiping liquid.

Therefore, the object of the present invention is to easily adjust the height of the wiping belt according to the height of each wiping surface, even if the height of the wiping surface differs depending on the type of work. It is to provide a work surface wiping device.

(Means for Solving the Problem) In order to solve the problem, the present invention relates to a wiping device for wiping an upper surface of a work by a wiping belt running around an endless track slidingly contacting the upper surface of the work. An elevating unit for moving the belt up and down, a work proximity sensor for detecting the proximity of the work, and a work upper surface position detection sensor for detecting the upper surface height position of the work are provided, and the work proximity sensor and the work upper surface height position sensor The elevating unit is moved up and down by a signal, and the height position of the wiping belt is adjusted to the detection position of the work upper surface position detection sensor.

Further, the work upper surface position detection sensor is moved up and down together with the wiping belt by the elevating unit, and a detection position of the work upper surface position detection sensor and a height position of the wiping belt slidingly contacting the work are substantially coincident with each other. Installed.

(Operation) When the workpiece proximity sensor detects the proximity of the workpiece, the workpiece upper surface height position sensor that detects the height of the workpiece surface simultaneously detects the height of the workpiece upper surface, and transmits a signal to the drive unit to drive the drive unit. Drive control. For this reason, the height position of the wiping belt moves up and down according to the height of the work surface, so that a wide variety of works can be quickly handled.

(Embodiment) An embodiment of the wiping device of the present invention will be described with reference to the accompanying drawings.

1 and 2 show a wiping device, FIG. 1 is a front view, and FIG. 2 is a side view.

The work surface wiping device of the present invention is configured as an upper surface wiper for a low tank of sanitary ware, and a lid that wipes only the upper surface of the glaze applied to the surface before the main baking and covers the upper surface at the same time during the main baking. It is intended to prevent the adhesion of the ink and to reduce the trouble such as wiping.

That is, as shown in FIG. 1 and FIG. 2, the wiping device 1 has a gantry-shaped mount 2, a drive unit 3 provided on the mount 2, and a drive unit 3 connected to the drive unit 3. The portal unit 2 is provided with an elevating unit 4 which can be vertically moved within the platform 2, and the platform 2 is erected so as to straddle a carrying path 5 of a low tank W as a work. Therefore, the low tank W after the glaze is to be conveyed in the front and back direction of the paper surface of FIG. 1 (from the left side to the right side of FIG. 2), and is carried into the apparatus 1 and the glaze on the upper surface is wiped off. After that, it is sent to the next process on the carrying path 5 as it is.

The drive unit 3 is composed of a cylinder unit that is operated by air pressure. The cylinder case 3a is fixed to the central upper surface of the portal frame 2, and the frame body of the lift unit 4 is attached to the tip of the cylinder rod 3b extending downward. 11 is attached.

The elevating unit 4 includes a frame body 11 and a belt traveling device provided on the frame body 11, and the frame body 11 is provided in the gate of the gate-type mount 2.
Both side portions in the width direction (horizontal direction in FIG. 1) are configured to engage with a plurality of inwardly extending rollers 12 of the gate type gantry 2 and move up and down in the gantry. Bars 13 and 13 extend downward from both sides of the frame 11 to support a sensor described later.

The belt traveling device described above includes a pair of main rollers 14, guide rollers 15, and auxiliary rollers 16 and 16.
5, 16 shafts are rotatably supported by the frame body 11, and a wiping belt 17 is wound around the periphery in an endless shape in the width direction of the portal frame 2.

This wiping belt 17 is configured as a wiping surface whose lower side is in sliding contact with the work upper surface, and a cleaning tank 18 is provided on the upper side for cleaning the wiping belt 17 with a cleaning liquid, and the wiping belt 17 passes through the cleaning liquid. I am trying. Further, in order to surely immerse the wiping belt 17 in the cleaning liquid, a pressing roller 19 for pressing the upper surface of the wiping belt 17 is provided, the pressing force can be freely adjusted by the cylinder unit 20, and the belt 17 is used at the inlet / outlet for the cleaning liquid. The cylinder unit 21 is engaged with the upper roller 16 of the two auxiliary rollers 16 sandwiching the belt 17 to freely adjust the throttle pressure of the belt 17. In the case of this embodiment, the wiping belt 17 is made of sponge.

One of the main rollers 14 of the pair of main rollers 14 described above,
A transmission belt 25 for transmitting the driving force is hung, and the transmission belt 25 is connected to a belt wheel 26 attached to the side surface of the portal frame 2. Further, another transmission belt 27 is hung on the belt wheel 26, and the transmission belt 27 is connected to a motor 28 attached to the upper portion of the portal frame 2. Therefore, by driving the motor 28, the wiping belt 17 travels around an endless track, but in the case of this embodiment, the rotation direction of the belt can be switched between left and right, and the circumferential speed of the belt is variable. There is.

As described above, the bars are directed downward from both sides of the frame 11.
13 and 13 are provided, and a pair of horizontal stays 30 and 31 are provided above and below the bar 13. This stay 30,31
Are extended forward in the loading direction of the low tank W to be loaded, and the sensors 3 are provided on the upper surface side of the extended end portions.
2,33 are attached. This sensor 32, 33 is a frame 1
1 A pair of photoelectric tube sensors attached to the respective stays 30 and 31 facing each other on the left and right at the same height is configured to detect the proximity or height of the work, that is, the sensor 33 provided on the lower stay 31. Is configured to detect the carry-in of the low tank W, and the sensor 32 provided on the upper stay 30 to detect the height of the upper surface of the low tank W. The signals of these sensors 32 and 33 are input to the drive unit 3 described above. I am trying to do it. Further, the sensor 32 for detecting the height of the upper surface is composed of two sensors 32a whose optical axes are different in the height direction,
32b is constructed by combining them, and these two sensors 32 are initially used.
After determining whether the elevating unit 4 is higher or lower than the height of the upper surface of the low tank W at a and 32b, the drive unit 3 is operated. For example, when the sensor 33 detects the low tank W and the upper surface of the low tank W blocks the optical axes of both the sensors 32a and 32b, it is determined that the position of the wiping belt is lower than the upper surface of the low tank W. The drive unit 3 is lifted, and the lift of the drive unit 3 is stopped when the optical axis blocking of the sensor 32a is released. On the contrary, when the sensor 33 detects the low tank W and the upper surface of the low tank W does not block the optical axes of both the sensors 32a and 32b,
When it is determined that the position of the wiping belt is higher than the upper surface of the low tank W, the drive unit 3 is lowered, and when the optical axis of the sensor 32b is blocked, the drive unit 3 is stopped from descending.

When the sensor 33 detects the low tank W, the upper surface of the low tank W is aligned with the position of the wiping belt when the optical axis of the sensor 32a is not blocked and the optical axis of the sensor 32b is blocked. It is determined that the driving unit 3 does not operate. In this embodiment, the difference between the heights of the optical axes of the two sensors 32a and 32b is 5 mm. This difference is adjusted with a sponge wipe belt.

In the wiping device configured as described above, when the low tank W as a work is carried in, the lower sensor 33 detects it, and then the upper sensor 32 detects the height of the upper surface of the low tank to automatically drive the drive unit 3. To activate. Then, the upper surface of the work is caught to drive unit 3
Is stopped, the lower surface of the wiping belt 17 matches the height of the upper surface of the work, the work is fed below the belt, and the lower surface of the belt is in sliding contact with the upper surface of the work.

Next, the motor 28 is driven, and at the same time, the work is gently advanced to wipe off the glaze on the upper surface.

The present invention is not limited to the embodiment and can be applied to finishing of the upper surface of the green body after molding.

(Effects of the Invention) As described above, the device for wiping the work surface of the present invention is configured so that the lifting unit for moving the wiping belt up and down, the work proximity sensor for detecting the proximity of the work, and the height position of the top surface of the work are set. A work upper surface position detection sensor for detecting is provided, and the elevating unit is moved up and down by the signals of the work proximity sensor and the work upper surface height position sensor, and the height position of the wiping belt is detected by the work upper surface position detection sensor. Since the position is adjusted, the wiping surface height of the wiping belt is changed according to the height of the work, and it is possible to handle a wide variety of works with different heights.

Further, the work upper surface position detection sensor is moved up and down together with the wiping belt by the elevating unit, and a detection position of the work upper surface position detection sensor and a height position of the wiping belt slidingly contacting the work are substantially coincident with each other. Since it is mounted as described above, a device or the like for raising and lowering the work upper surface position detection sensor for detecting the work upper surface is not necessary, and the wiping operation of the wiping belt can be performed immediately when the work upper surface is detected.

[Brief description of drawings]

1 and 2 show a wiping device, FIG. 1 is a front view, and FIG. 2 is a side view. In the figure, 1 is a wiping device, 2 is a portal frame, 3 is a drive unit, 4 is a lifting unit, 5 is a carrying path, 17 is a wiping belt,
18 is a washing tank, 32 and 33 are sensors, and W is a low tank.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 59-61249 (JP, U) Shoko 31-4164 (JP, Y1)

Claims (2)

[Scope of utility model registration request] 1. A wiping device for wiping an upper surface of a work by a wiping belt running around an endless track slidingly on the upper surface of the work, and an elevating unit for moving the wiping belt up and down.
A work proximity sensor that detects the proximity of the work, and a work top surface position detection sensor that detects the top surface height position of the work are provided, and the elevating unit is moved up and down by the signals of the work proximity sensor and the work top surface height position sensor. A work surface wiping device, wherein a height position of the wiping belt is adjusted to a detection position of the work upper surface position detection sensor. 2. The work top surface position detection sensor is moved up and down together with the wiping belt by the lifting unit,
The work surface wiping according to claim 1, wherein the detection position of the work upper surface position detection sensor and the height position of the wiping belt that is in sliding contact with the work are substantially aligned with each other. apparatus.