JPH09220511A - Slantedly moving hanger type carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slantedly moving hanger type carrier of a simple structure which can reduce the sedimentation amount of a lower level side end of a work supported by a hanger at the time of slantedly moving of the hanger. SOLUTION: This carrier is provided with a slantedly moving flame 13 fixing a hanger below and a supporting frame 14 for supporting the vicinity of the front and rear ends of the slantedly moving frame 13 respectively around the rotating axial lines in the left and right directions respectively through connecting sections of two units of connecting sections to be separable upward only. In the case of moving slantedly the hanger 12 to the front, a front connection works as a rotating support and a rear connecting section is separated, and the slantedly moving frame 13 is slantedly moved to the front to the supporting frame 14. In the case the hanger 12 is slantedly moved to the rear, the rear connecting section works as a rotating support, and the front connecting section is separated, and the slantedly moving frame 13 is moved slantedly to the rear to the supporting frame 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger tilting, which is particularly suitable for dipping and cleaning a work by putting a work into a processing tank containing a coating solution or a processing solution such as a cleaning solution in an automobile undercoating process. Regarding the expression carrier.

[0002]

2. Description of the Related Art Conventionally, in a process of undercoating a vehicle body of an automobile, a work to be treated is passed through a hanger of a trolley conveyor while passing through a treatment tank in which a treatment liquid such as paint or cleaning liquid is stored. Work such as painting and cleaning is performed. For a work that has a space inside, such as the car body of an automobile, if air is accumulated inside the work when it is dipped into the treatment liquid, there will be a portion where the treatment liquid does not come into contact with the inner surface of the work. Incomplete processing, deformation of the work due to buoyancy of residual air, and lifting from the hanger will occur.Therefore, the work is introduced along the inclined path with respect to the processing tank. The front side is tilted downward so that the air in the work escapes backward. Further, when pulling up the work from the processing tank, in order to prevent the processing liquid from remaining in the work, the work is sent out from the inside of the processing tank along a slanted path, and the rear side of the work is tilted downward, The processing liquid inside is made to flow down to the processing tank.

[0003]

However, in the case where the posture of the work is tilted back and forth when the work is carried in and out of the processing tank only by the inclination of the transport path of the trolley conveyor, the lower end portion of the work is Therefore, the bottom of the treatment tank must be deepened, and a large amount of treatment liquid is required.

Therefore, as described in, for example, Japanese Patent Laid-Open No. 2-34463, a pair of rear trolleys for suspending a hanger for mounting a work are arranged at both ends of an arm, and the rear trolley is provided before and after the processing tank. The rear trolley transfers from the main rail through which the front trolley passes to the sub-rails that branch to both sides, and the level of the main rail and sub-rail of the loading and unloading part of the processing tank is changed to the lower end of the workpiece. Some have been designed to reduce the amount of sedimentation. However, since the subrail is branched from the main rail to both sides, it is necessary to use a subrail with the same structure as the main rail, a mechanism for branching is required, and the structure of the rear trolley is complicated. Therefore, there is a problem that equipment cost increases.

Therefore, the present invention solves the problems of the prior art as described above, and at the time of tilting the hanger, the hanger tilting type having a simple structure capable of reducing the sinking amount of the lower end of the work supported by the hanger. The purpose is to provide a career.

[0006]

To achieve the above object, a hanger tilting carrier according to the present invention comprises a tilting frame having a hanger fixed to the lower side thereof and a front and rear end portions of the tilting frame around a rotation axis in the left-right direction. Freely rotatable, and
It is provided with a receiving frame which is supported only through two sets of front and rear connecting portions which can be separated only upward.

In the hanger tilting type carrier,
One of the tilting frame and the receiving frame is rotatably connected to one end side of the connecting link coaxially with the rotation axis of the front connecting part, and the other is coaxial with the rotating axis of the rear connecting part. It is desirable that the other end is rotatably connected.

[0008]

When the hanger is tilted forward, the front connecting portion serves as a pivot fulcrum, the rear connecting portion separates, and the tilting frame tilts forward with respect to the receiving frame. Further, when the hanger is tilted rearward, the rear connecting portion serves as a pivot fulcrum, the front connecting portion is separated, and the tilting frame tilts rearward with respect to the receiving frame and is supported by the hanger. It is possible to reduce the vertical fluctuation range of the trajectory drawn by the front and rear ends of the load when the hanger tilts.

When the tilting frame and the receiving frame are rotatably connected to each other by the connecting link, the tilting frame and the receiving frame are connected by the connecting link when the separated connecting portions are connected again. The relative front and rear positions are positioned, and even if two sets of front and rear connecting portions are simultaneously removed, it is possible to reliably return to the connecting position.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a hanger tilting type carrier of the present invention. The carrier 1 is a free rail 4 provided in parallel below a power rail 3 for guiding the traveling of a carrier chain 2. It is supported by front and rear carrier trolleys 5 and 6 which are movably supported by. The front carrier trolley 5 is further connected to a dog trolley 7 which is movably supported by the free rail 4 in front of the carrier trolley 5, and a dog 8 provided at an upper end of the dog trolley 7 is attached to the transport chain 2. The pusher 9 is detachably connected to the pusher 9, and the carrier 1 is pulled by the transport chain 2. The dog 8 is configured to be disengaged from the pusher 9 when the dog release lever 10 hits a stopper provided at the rear of a carrier (not shown) preceding the dog release lever 10. In addition, a stopper 11 that operates a dog release lever when a subsequent carrier approaches is connected to the rear of the carrier trolley 6.

The carrier 1 is mounted with a tilting frame 13 for fixing a hanger 12 supporting a work W downward, and the tilting frame 13, and the carrier trolley 5, 5.
6 and the receiving frame 14 supported by 6.

FIG. 2 is an exploded perspective view showing a detailed structure of the carrier 1, in which the tilting frame 13 is formed in a rectangular cross section, and the horizontal portions 12A above the hanger 12 are formed on both side surfaces at the front and rear positions thereof. 12B penetrates and is fixed.
A pair of roller support plates 15 and 16 is fixed to the horizontal portions 12A and 12B so as to project upward and fixed to the left and right sides of the tilting frame 13, respectively.
A rearward tilting roller 17 is rotatably attached to each of the rollers 5 in a cantilevered manner so as to project outward in the left and right directions. The rotation axes of the two rearward tilting rollers 17 are arranged on the same axis in the left-right direction.

Further, forward tilting rollers 18 are rotatably mounted in a cantilevered manner so as to project inwardly to the left and right, respectively, on the pair of rear roller supporting plates 16, and the two forward tilting rollers are provided. The rotation axis of the working roller 18 is arranged on the same axis in the left-right direction. The left and right rearward tilting rollers 17 are provided so as to be positioned on the left and right outside of the frontward tilting rollers 18.

The horizontal portion 1 is located near the front end of the tilting frame 13.
At the 2A rear position, a pair of front connecting shafts 19 are provided rotatably by protruding left and right from both side surfaces of the tilting frame 13, and a pair of connecting links 20 are provided at the end portions of these front connecting shafts 19, respectively. Is fixed so that one end side of the is symmetrically positioned.

On the other hand, a pair of rear connecting shafts 21 are provided on both side surfaces of the tilting frame 13 near the rear end portion in front of the horizontal portion 12B of the hanger 12 so as to be positioned on the same axis line in the left-right direction. . Then, as shown in FIG. 2, when the pair of connecting links 20 are parallel to the longitudinal direction of the tilting frame 13, the respective connecting links 20.
The other end side of is located outside the rear connecting shafts 21 on both sides.

Further, a pair of link connecting shafts 22 are provided at the other ends of the pair of left and right connecting links 20 so as to project toward both outer sides, and the pair of connecting links 20 are arranged in the longitudinal direction of the tilting frame 13. In the parallel position, the pair of link connecting shafts 22 are located on the same axis on both outer sides of the pair of rear connecting shafts 21.

On the other hand, the receiving frame 14 is formed in a square cross section having mounting seats 23, 24 for mounting the front and rear carrier trolleys 5, 6 shown in FIG. The front and rear positions between the two are substantially U-shaped notches 25A and 26 each having an open upper side.
A pair of left and right shaft support plates 25 and 26 having A are provided.

Notch 25 of these shaft support plates 25, 26
A and 26A have a shape adapted to the front connecting shaft 19 and the rear connecting shaft 21 of the tilting frame 13 described above, and the front connecting shaft 19 and the rear connecting shaft 21 are provided in the notches 25A and 26A.
By inserting and, respectively, the tilting frame 13
Are supported between the mounting seats 23 and 24 at the front and rear of the receiving frame 14.

The front connecting shaft 19 and the rear connecting shaft 21 are supported by the notches 25A and 26A of the shaft supporting plates 25 and 26, respectively, so that they can rotate and can be detached upward. Receiving frame 14 for tilting frame 13
When tilting forward, the front connecting shaft 19 is supported by the cutout portion 25A to rotate the tilting frame 13 forward, and when tilting frame 13 is tilted backward with respect to the receiving frame 14. Attaches the rear connecting shaft 21 to the notch 26
The tilting frame 13 is supported by A and is rotated backward.
The front connecting shaft 19 and the shaft supporting plate 25 form a front connecting part in the present invention, and the rear connecting shaft 21 and the shaft supporting plate 26 form a rear connecting part. The cutouts 25A and 26A may be formed in a V shape with an open top. Furthermore, tilting frame 1
In order to make the tilting of 3 smooth, a freely rotatable roller may be fitted to the front connecting shaft 19 and the rear connecting shaft 21, and the rollers may be supported by the notches 25A and 26A.

Further, bearing support portions 27 are provided on both outer sides of a pair of left and right shaft support plates 26 provided at the rear of the receiving frame 14, and the above-mentioned pair of left and right couplings are provided on the upper surface thereof. A bearing 28 is provided for rotatably supporting the link connecting shaft 22 provided on the link 20. The connecting frame 22 prevents the tilting frame 13 and the receiving frame 14 from being completely separated from each other and prevents the tilting frame 13 from falling off the receiving frame 14.

FIG. 3 is a view as seen in the direction of the arrow AA in FIG. 1, and a pair of rear tilt subrails 29 and front tilt subrails 30 are provided below the free rail 4 on both sides thereof. And are arranged. The sub-rail 29 for rearward leaning
At a position facing the lower surface of the backward tilting roller 17, and the forward tilting sub-rail 30 is positioned at the front tilting roller 18
Are arranged at positions facing the lower surface of each.

The sub-rail 29 for rearward tilting has the roller 17 for rearward tilting.
When tilted up, the tilting frame 13 moves to the receiving frame 14
Rotate around the rear connecting part as a fulcrum with respect to the hanger 1
The work W supported by 2 inclines backward. On the other hand, when the forward tilting sub-rail 30 pushes up the forward tilting roller 18, the tilting frame 13 rotates about the front connecting portion with respect to the receiving frame 14, and the workpiece W tilts forward. The rearward tilting sub-rail 29 and the forward tilting sub-rail 30 do not need to be installed in a section in which the hanger 12 is moved in a horizontal posture, but are provided only in a section in which the hanger 12 needs to be tilted forward or backward.

FIG. 4 is a view showing the passing positions of the rearward tilting subrail 29 and the forward tilting subrail 30 in the section where the work W is submerged in the processing liquid Q. The processing tank in which the processing liquid Q is stored is shown in FIG. Reference numeral 31 is inclined in the front-rear direction with respect to the conveyance direction of the work W and is deep in the center. In the same figure, the free rail 4 which guides the carrier 1 is installed at a height corresponding to the depth of the processing tank 31, and in FIG. .

On the other hand, the tilt frame 13 receives the frame 1
The trajectory of the sub-rail 29 for rearward tilting with respect to 4 is indicated by a solid line, and the tilting frame 13 receives the frame 1.
The locus of the forward tilting sub-rail 30 tilted forward with respect to No. 4 is indicated by a dotted line.

As shown in the figure, the forward tilting sub-rail 30
Is a receiving frame of the carrier 1 which is tilted forward by the forward tilt of the free rail 4 by pushing up the lower surface of the forward tilting roller 18 of the tilting frame 13 at the part where the work W enters the processing tank 31. 14, the tilting frame 13
Is further inclined forward, and the work W supported by the hanger 12 is further steeply immersed in the liquid surface of the processing liquid Q. At this time, the air entering the work W is
Due to the large inclination of the work W, the work W is released upward, and the inner surface of the work W uniformly contacts the processing liquid Q. As the front subtilt 30 approaches the center of the processing tank 31, the subtilt 30 lowers more than the free rail 4 to reduce the tilt of the tilting frame 13, and the front subrail 30 before the central position of the processing tank 31. 30 is omitted, the tilting frame 13 becomes horizontal with respect to the receiving frame 14, and the work W supported by the hanger 12 becomes horizontal accordingly.

On the other hand, a sub-rail 29 for rearward tilting is provided from the position where the free rail 4 rises beyond the central position toward the front. The sub-rail 29 for rearward leaning
Pushes up the rear tilting roller 17 of the tilting frame 13,
The tilting frame 13 is further tilted with respect to the receiving frame 14 of the carrier 1 tilted rearward, and the hanger 12
When the work W supported by the work W is pulled up from the processing bath 31, the processing liquid Q therein is allowed to flow down into the processing bath 31 so that the work W does not remain inside the work W.

Next, FIG. 5 shows an example in which the work W is passed through the processing bath 32 in which the depth of the processing liquid Q is constant, and the free rail 4 is installed horizontally on the processing bath 32. Therefore, the receiving frame 14 of the carrier 1 moves horizontally. On the other hand, the rear tilting sub-rail 29 and the front tilting sub-rail 30 are installed in a wavy pattern with their phases alternately shifted, and as the carrier 1 moves, the tilting frame 13's rear tilting roller 17 and front tilting sub-rail 30 are installed. The rollers 18 are alternately pushed up by these rails, and the tilting frame 13 is repeatedly tilted back and forth with respect to the receiving frame 14. The work W supported by the hanger 12 by the movement.
The air remaining inside is discharged and the treatment liquid Q in the work W flows, and the inner surface of the work W comes into uniform contact with the treatment liquid.

The rear tilting sub-rail 29 and the front tilting sub-rail 30 are formed to have a U-shaped cross section so as to guide the rear tilting roller 17 and the front tilting roller 18 from above and below, respectively. Alternatively, the guide rails for restricting the free movement of these rollers in parallel are arranged above the rear tilt subrail 29 and the front tilt subrail 30 so that the tilting frame 13 is lifted or jumped up. Can be prevented, and the work W can be transported in a more stable state.

In the above-described embodiment, the carrier 1 is hung by the carrier trolley and conveyed, and the tilting frame 13 is moved backward or backward by the rearward tilting subrail 29 or the forward tilting subrail 30 arranged along the carrier path. Although it is tilted forward, instead of using these sub-rails, the carrier is equipped with a drive means such as an air cylinder,
Alternatively, one of the front and rear ends of the tilting frame with respect to the receiving frame may be selectively pushed upward to tilt.

Further, in the hanger tilting carrier of the present invention, the work supported by the hanger by being lifted by a lifter or the like may be taken into and out of the processing tank from above. In that case, an air cylinder or the like may be used. The drive means can be mounted on the receiving frame, or a wire or chain connected to the tilting frame can be externally operated to tilt the tilting frame back and forth.

Further, in the above-described embodiment, the connecting link 20 is connected by the tilting frame 13 and the front connecting shaft 19, and is connected at a position coaxial with the rotation axis of the receiving frame 14 and the rear connecting shaft 21. The connecting link may be connected to the receiving frame at the position of the front connecting shaft, and may be connected to the tilting frame at the position of the rear connecting shaft.

[0032]

As described above, according to the hanger tilting type carrier of the present invention, when the hanger supporting the work is tilted forward, the front connecting portion is used as the rotation fulcrum and the rear connecting portion is separated. Then, when the tilting frame is tilted forward with respect to the receiving frame, and when tilted backward, the rear connecting portion is rotated, the front connecting portion is separated, and the tilting frame is received by the receiving frame. Since it is tilted backward, the front and rear ends of the transported object supported by the hanger can reduce the vertical fluctuation range of the trajectory drawn when the hanger tilts.

As a result, when the work is tilted in the processing tank in which the processing liquid such as paint or cleaning liquid is stored, the depth of the processing tank can be made shallow, so that the amount of the processing liquid stored in the processing tank can be reduced. In addition, since the work can be easily performed and the work can be easily tilted at the optimum angle with a simple structure, the cost of the equipment can be reduced.

Further, when the tilting frame and the receiving frame are rotatably connected to each other by the connecting link, the tilting frame and the receiving frame are connected by the connecting link when the separated connecting portions are connected again. Since the relative front and rear positions of the joints are positioned, even if two sets of front and rear connecting parts are disconnected at the same time, it is easy to return these connecting parts to the connecting position, and moreover, the tilting frame is separated from the receiving frame. There is no danger of falling off and increasing safety.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a hanger tilting type carrier of the present invention.

FIG. 2 is an exploded perspective view of a main part of the carrier in the hanger tilting type carrier of the present invention.

FIG. 3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 shows a hanger tilting carrier according to the present invention.
The figure explaining the operation | movement which makes a work dive in a processing tank.

FIG. 5: With the hanger tilting type carrier of the present invention,
The figure explaining the operation | movement which repeats the back-and-forth tilting of a workpiece | work in a processing tank by turns.

[Explanation of symbols]

1 carrier 2
Transport chain 3 Power rail 4
Free rail 5,6 Carrier trolley 7
Dog Trolley 8 Dog 9
Pusher 10 Dog release lever 11
Stopper 12 Hanger 12A, 12B
Horizontal part 13 Tilt frame 14
Receiver frame 15, 16 Roller support plate 17
Rear tilt roller 18 Front tilt roller 19
Front connecting shaft 20 Connecting link 21
Rear connecting shaft 22 Link connecting shaft 23, 24
Mounting seat 25,26 Shaft support plate 25A, 26A
Notch 27 Bearing support 28
Bearing 29 Sub-rail for rearward tilt 30
Sub-rail for forward tilting 31 Processing tank

Claims (2)

[Claims] 1. A tilting frame having a hanger fixed to the lower side, and two sets of front and rear couplings in which the vicinity of the front and rear ends of the tilting frame are each rotatable around a rotation axis in the left-right direction and are separable only upward. A hanger tilting carrier having a receiving frame supported through a section. 2. One of the tilting frame and the receiving frame is rotatably connected to one end of the connecting link coaxially with the rotation axis of the front connecting portion, and the other is coaxial with the rotation axis of the rear connecting portion. The hanger tilting carrier according to claim 1, which is rotatably connected to the other end of the connecting link.