JPH0742521Y2 - Top machine for painting - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is designed to maintain a constant coating distance between the upper surface of a coating material conveyed at a predetermined speed and a coating machine. The present invention relates to a top machine for painting that raises and lowers the painting machine according to changes in shape.

[Conventional technology]

In the conventional top machine, as shown in the front view of FIG. 2, the shape of the object W to be coated is changed by a pair of columns 1R and 1L standing upright on both sides of the conveyance path of the object W to be erected. An elevating platform 2 that can be raised and lowered together is provided, and between these elevating platforms 2 and 2,
The elevating frame 4 with the painting machines 3, 3 ...
60-232268, JP-A-63-88075).

By the way, when installing this top machine in a paint booth, the pillars 1R, 1L and the lifting frame 4 are separated from each other and transported to the installation site, and first, the pillars 1R, 1L are placed on the floor as shown in FIG. It is erected on the surface F, and then, as shown by the chain line in the figure, the left and right ends of the elevating frame 4 are welded or fixed to the elevating stand 2 of each of the columns 1R and 1L with bolts or nuts to assemble in a gate shape. It is common.

[Problems to be solved by the device]

However, when assembling such a gate-shaped structure, as shown in the front view of FIG. 3, one or both of the pillars 1R and 1L is erected due to the inclination of the floor surface F,
As shown in the plan view of FIG. 4, if the columns 1R and 1L are not properly faced to each other and are twisted and stood up, the lifting frame 4 cannot be erected between the platforms 2 of the columns 1R and 1L. Therefore, it was troublesome that the columns 1R and 1L had to be rebuilt and the inclination of the floor surface F had to be corrected.

In other words, the designer of the top machine builds the top machine on the assumption that the columns 1R and 1L are facing each other without any difference and can stand vertically on the horizontal floor F, so that the columns 1R and 1L are small. Even if it is twisted or tilted, one end of the lifting frame 4 is displaced as shown in FIGS. 3 and 4,
It becomes impossible to fix the one end to a predetermined position of the lifting platform 2.

Therefore, in order to correct the positional deviation, the site worker must repeatedly re-support the columns 1R and 1L, which is a heavy labor burden.

Also, if you can not correct the misalignment no matter how many times you try,
In some cases, one end of the elevating frame 4 is forcibly pulled to be aligned, and then the elevating frame 4 is fixed to the elevating platform 2. In this case, the guide rails 5, 5 ...
There is a risk that unreasonable stress will be applied to the guide rails 5, 5, ..., And defects such as the guide rails 5, 5 ...

Therefore, the present invention allows the columns 1R and 1L which are erected on the floor F to be twisted or tilted to some extent, and allow the twists or inclinations to be provided, so that the elevator mounts provided on the columns 1R and 1L The technical stand is that the lifting frame 4 can be installed between the 2 and 2 without difficulty.

[Means for Solving the Problems]

In order to solve this problem, according to the present invention, a pair of columns that are erected on the left and right with a conveyance path of an article to be coated each provided with an elevating platform, and a coating machine is attached downward between these elevating platforms. In the painting top machine in which the elevating frame is horizontally installed, the left and right ends of the elevating frame are connected to the elevating bases through universal joints that are rotatable in the up, down, left and right directions, respectively. It is characterized by

[Action]

According to the present invention, when the elevating frame is installed between the elevating and lowering mounts provided on the left and right columns, the vertical position displacement caused by the inclination of the columns and the lateral position displacement caused by the twisting of the columns are caused. This is allowed by universal joints that connect the left and right ends of the lifting frame to each lifting platform.

Therefore, it is possible to eliminate the trouble of correcting the misalignment by repeatedly reassembling the support column, and at the same time, it is possible to prevent the misalignment from exerting an unreasonable stress on the lifting platform.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a front view showing an example of a painting top machine according to the present invention.

In this example, the left and right ends of the elevating frame 4 installed between the elevating platforms 2 provided on the left and right columns 1R and 1L are respectively moved up and down via universal joints 6 which are rotatable in the up, down, left and right directions. It is adapted to be connected to the gantry 2.

Each universal joint 6 is composed of a horizontal shaft 7 that controls vertical rotation and a vertical shaft 8 that controls horizontal rotation.

In addition, each of the lifting platforms 2 is provided with a platform body 2a, to which a universal joint 6 is attached at the tip, slidable horizontally along a direction orthogonal to the transport path of the article W, and is mounted on one of the lifting platforms 2. With the crank drive device 9, the gantry body 2a of both the elevating gantry 2 is reciprocated left and right,
The lifting frame 4 with the 3,3 ... attached is designed to move left and right.

The crank drive device 9 is composed of a crank 11 which is rotationally driven by a motor 10 and a crankshaft 12 which is connected between the crank 11 and the gantry body 2a.

Then, when assembling the top machine of this example, first, the left and right columns 1R and 1L are opposed to each other at a predetermined interval and the floor surface F is
As shown in the chain line in Fig. 1, the elevating pedestals 2 and 2 installed on each of the columns 1R and 1L are lowered to the lower limit position, and then between the elevating pedestals 2 and 2 The lifting frame 4 is installed.

At this time, universal joints 6, 6 are attached to the left and right ends of the elevating frame 4 in advance by welding or the like, and the vertical shaft 8 of each universal joint 6 is rotated so that the horizontal shaft 7 is vertical. Then, each of the lifting mounts 2 is vertically mounted at a predetermined mounting position provided at the tip of the mount main body 2a.

As a result, even if one or both of the columns 1R and 1L are not vertically erected so as to stand upright and one or both of them are standing with a slight twist, the twist is allowed by the vertical shaft 8 which is rotatable in the left-right direction. It

Further, even if one or both of the columns 1R and 1L are slightly inclined due to the inclination of the floor surface F, the inclination is allowed by the horizontal shaft 7 which is rotatable in the vertical direction.

Therefore, even if the left and right struts 1R and 1L erected on the floor F are twisted or tilted to some extent, the elevating frame 4 can be installed between the elevating pedestals 2 and 2 without difficulty. Therefore, it is possible to eliminate the trouble of rebuilding the columns 1R and 1L many times as in the conventional case.

[Effect of device]

As described above, according to the present invention, when the top machine for painting is assembled at the installation site, even if the left and right struts are slightly twisted or even if they are erected in a tilted state, the twisting or tilting By allowing the positional deviation due to, it is possible to erect the elevating frame between the elevating racks provided on both of these columns without difficulty, so the columns need to be installed repeatedly to correct the positional deviation as in the past. At the same time as eliminating the trouble of rebuilding, the lifting frame is forcibly erected while keeping the position misaligned, and unreasonable stress is applied to the lifting platform, which hinders the smooth lifting of the lifting platform and guides that support it. It has a very excellent effect of eliminating defects such as the rail being worn out.

In addition, since no excessive force is applied to the guide rail, it is not necessary to make the guide rail particularly sturdy, and there is an effect that the support rail can be made smaller by making it thinner.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a painting top machine according to the present invention, FIG. 2 is a front view showing the structure of a conventional example, and FIGS. 3 and 4 are front views showing the problems of the conventional example, respectively. FIG. Explanation of the symbols 1R, 1L …… posts, 2 …… elevation mounts, 3 …… painting machines, 4 ・ ・ ・
… Lifting frame, 6… Universal joint, W…
… To be coated.

Claims (1)

[Scope of utility model registration request] 1. A pair of support columns (1R), (1L) standing upright on both sides of a transfer path for an article to be coated (W), respectively, and an elevating platform (2).
Is provided, and an elevating frame (4) having a coating machine (3) mounted downward is horizontally installed between the elevating mounts (2), (2). A top machine for painting, characterized in that both left and right ends of the above are connected to each of the elevating racks (2) through universal joints (6) which are respectively rotatable in the vertical and horizontal directions.