JPS6332134Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is a pretreatment process suitable for pretreatment of a car body, electrodeposition, etc., while the car body is suspended and transferred on an overhead trolley conveyor. This invention relates to a hanger device for electrodeposition.

2. Prior Art FIGS. 5 and 6 show a conventional hanger device in which an automobile body is transported by an overhead conveyor and immersed in a treatment liquid for pretreatment, electrodeposition, etc. The trolley is suspended on a ceiling rail 1. 2, 3, 4, etc. are bendably connected by connecting members 5, 6, and are driven by a traveling motor 7. The front and rear upper parts of a hanger 9 having a rectangular framework are suspended by front and rear hoists 8, 8 attached to the connecting member 6, and the hanger 9 supports the automobile body M on a horizontally rotatable support arm 10 provided at the lower part. Load and transport.

When the body M is lowered into the electrodeposition solution tank 11 and immersed in the electrolyte solution 12 during the transfer, the hoist 8 is usually operated so that the solution adheres well to the corners of the inner surface of the ceiling of the body M. Immerse M while tilting it back and forth. In this case, in order to prevent the hanger 9 from swinging back and forth due to the inflow of the electrodeposition liquid into the body or the outflow when the body rises, conventionally, a vertical guide rail (not shown) is provided in the liquid layer 11 to prevent the hanger 9 from swinging back and forth. The body M cannot be moved forward in the liquid tank 11, and the guide rails may wear out or the guide rollers may get stuck to the electrodeposited liquid. There was a problem that it became difficult to turn. In addition, since guide rails interfere with positioning the body M at the loading and unloading points and are difficult to install, a drop lift is inevitably required to automate loading and unloading, which increases equipment costs.

Problems to be Solved by the Invention The purpose of this invention is to propose a pre-treatment and electrodeposition hanger device that solves the above-mentioned conventional problems by providing a back-and-forth rocking prevention device on the hanger itself instead of the guide rail. .

Means to Solve the Problem This proposal involves suspending the front and rear portions of the hanger by front and rear hoists supported on the frame of the overhead carrier, and suspending the hanger at the intermediate position between the suspension points of the front and rear hoists, or at the suspension point of either hoist. The gist of the present invention is a structure of a hanger device for pretreatment and electrodeposition, in which a holding frame is pivotally attached to a hanger at the same longitudinal position as the holding point so as to be tiltable back and forth, and the carrier and the holding frame are connected by a pantograph that expands and contracts vertically.

Function The pivot point between the hanger and the holding frame is restrained by the action of the pantograph so that it always moves up and down on a constant line perpendicular to the carrier. Therefore, when the hanger is tilted back and forth by operating the hoist,
The hanger only tilts back and forth about the front-back pivot point, and is prevented from moving back and forth, that is, swinging back and forth.

Embodiment In FIGS. 1 and 2, a carrier 13 is suspended on a horizontal ceiling rail 15 by four trolleys 14 and is self-propelled by a motor 16. Hoists 18, 18 are attached to the front and rear of the central carrier frame 17, thereby suspending the front and rear of the hanger 19 at a suspension point 20. The hanger 19 connects the upper centers of front and rear support legs 21 bent in a C shape in a direction perpendicular to the transfer direction with a pair of vertical members 22, and is suspended from the hoist 18 by a hanging fitting 23 fixed to the vertical members 22. be done. The center portion of a longitudinally elongated holding frame 24 is pivotally attached to the inside center of the vertical member 22 by a pin 25 so as to be tiltable back and forth.

The carrier frame 17 and the holding frame 24 are connected by a pair of pantographs 27 formed by cross-connecting links 26 of equal length. Each pantograph 27 is connected to a carrier frame 17 such that one upper link end and one lower link end are located on a vertical line.
and the holding frame 24 with pins 28 and 29,
Pins 30 and 31 fixed to the other upper link end and lower link end respectively are connected to the carrier frame 17.
The long grooves 3 are fitted into the long grooves 32 and 33 provided in the holding frame 24 and the holding frame 24, respectively, and the long grooves 3 are fitted as the pantograph 27 expands and contracts.
Slide inside 2,33. The pantograph 27 expands and contracts vertically due to the restraining action of the pins 28 and 30, so when the hanger 9 is lowered to the chain line position by the hoist 18, the hanger 19 is restrained so that the pin 25 moves on a constant vertical line 34, and the hanger 19 is lowered. do. Even when the hanger 19 is tilted back and forth by varying the amount of descent of both hoists 18, the pin 25 is restrained on the vertical line 34, so the hanger 19 will tilt back and forth around the pin 25, but the pin 25
A rocking motion such as moving back and forth is prevented.

Note that since the hanger 19 hardly swings in the left-right direction, there is no need for means for preventing swinging in this direction.

Hanger 1 is placed in the C-shaped recessed part of hanger 19.
9 is in the raised position, the fixed cover 35 covering the upper passage of the body M is protruded, and the carrier,
Catches debris that falls from hoists, pantographs, etc. Furthermore, a dust receiving plate 36 is fixed to the hanger 19 itself at a position where it does not interfere with the fixed cover 33.

FIGS. 3 and 4 show an embodiment in which the holding frame 24a is pivotally attached to the hanger 19 at the same longitudinal position as the suspension point 20 of the front hoist 18 with a pin 25a. In this case, the hanger 19 is tilted back and forth about the pin 25a based on the same principle as in the previous embodiment. In this embodiment, the carrier frame 17a is made wide, and holding frames 24b similar to the holding frame 24a are fixed to both sides of the carrier frame 17a.
The holding frame 24a and the holding frame 24b are connected by a pantograph 27a so that they can be vertically expanded and contracted.

Effects of the invention Since the present invention has the above-mentioned configuration, when an automobile body is lowered while being tilted back and forth into a treatment liquid tank or an electrodeposition tank during transport, or when the body is pulled up from the tank, the body will not be able to swing back and forth. Therefore, it is possible to sink the body into the processing solution or electrodeposition solution in a tilted posture that is most likely to descend into the processing solution or electrodeposition solution, and it is also possible to move the body forward within the solution bath. This has the effect that body treatment using a treatment liquid or an electrodeposition liquid can be carried out most effectively. Furthermore, since a guide rail for raising and lowering the hanger is not required, positioning with respect to the floor conveyor at the loading/unloading point is facilitated.

[Brief explanation of the drawing]

Figure 1 is an elevation view of one embodiment of the present invention, Figure 2 is a side view of the same, Figure 3 is an elevation view of another embodiment, and Figure 4 is an elevation view of another embodiment.
The figure is also a side view, and Figure 5 is an elevation view of the conventional device.
FIG. 6 is also a side view. 13...Overhead carrier, 17...Frame, 18...Hoist, 19...Hanger, 20
...Hanging point, 24,24a...Holding frame, 27,2
7a...Pantograph.

Claims (1)

[Scope of claim for utility model registration] (1) The front and rear parts of the hanger are suspended by front and rear hoists supported on the frame of the overhead carrier,
With a pantograph that pivots the holding frame to the hanger so that it can be tilted back and forth at a midway position between the suspension points of the front and rear hoists or at the same front and back position as the suspension point of either hoist, and vertically expands and contracts the carrier and the holding frame. Connected pre-treatment and electrodeposition hanger equipment. (2) The hanger device according to claim 1, wherein the hanger is a C-shaped hanger recessed in a U-shape in a direction perpendicular to the carrier traveling direction.