JPH0423096Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a conveyed object swinging device for a trolley conveyor in a painting line.

Conventional technology Conventionally, on an automobile assembly line using an overhead type trolley conveyor, engines, tires, etc. are attached to the car body one after another, so the weight of the conveyed car body gradually increases. It is necessary to hold such a car body horizontally, and a structure that keeps the car body horizontal is used as a hanging member of a hanger. However, in a painting line that performs electrocoating of car bodies, the electrolyte adheres not only to the rails of the trolley and conveyor but also to the trolley and hanger suspension members above the electrolytic tank, and if the movable parts are touched, malfunction may occur. Therefore, a hanger with a complicated structure has not been used as a hanging member.

In the painting line, when the transported vehicle body is immersed in the electrolytic bath, air pockets are formed inside the vehicle body, especially when the shape of the vehicle body is complex. Easy to do. In order to remove gas such as air that has entered the air pocket inside the vehicle body and is not discharged, it is necessary to swing the vehicle body hanger and tilt the vehicle body in the vertical direction.

Problems that the invention aims to solve However, in the painting line, the conveyor
Providing a device for swinging the hanger on the rail not only complicates the structure of the device and increases equipment costs, but also tends to cause problems due to electrolyte adhering to the device. It was hot.

In addition, in the painting line, the transported vehicle body is introduced diagonally into the liquid of the electrolytic tank, and then taken out diagonally from the liquid. This is to ensure that air can be smoothly discharged from the inside, and that the electrolyte can also smoothly flow out of the vehicle body when taken out. In this case, since the flow of fluid inside the car body differs depending on the car model, the angle of introduction into the electrolyte and the angle of extraction from the electrolyte will vary depending on the car model.
These optimal angles were determined through experiments.
However, it is extremely troublesome to change the angle of the conveyor rail for each different vehicle model.

The purpose of this invention is to solve the above-mentioned problems of the conventional technology, and to make it possible to swing objects such as car bodies in an inclined manner in the vertical direction while immersed in electrolyte in a painting line, and to change the angle of the swing. can be set freely, the air inside the transported object can be reliably discharged, and the transported object can be completely coated.Moreover, the structure is very simple, and the equipment cost is very low. Not only is it inexpensive, it does not cause any troubles due to adhesion of electrolytes, etc., and it can also be used to easily handle electrolytes, without having to change the shape of the main transport rail depending on the type of object being transported, such as a vehicle body. An object rocking device for trolley conveyors in painting lines that can freely set the introduction and take-out angles of objects and ensure the inflow and outflow of electrolyte into and out of the objects. We are trying to provide the following.

Means for Solving the Problems In order to achieve the above-mentioned object, this invention provides at least one of the right and left sides of the main transportation rail of the trolley conveyor above the electrolytic cell of the coating line.
A hanger swinging sub-rail is provided, and a pair of front and rear hanger swinging side rollers is provided on the same side as the above-mentioned sub-rail of the hanger, which is suspended via a hanging member from a trolley that moves along the main transportation rail. mounted, the side rollers are guided by secondary rails, and the sections of the main conveying rail corresponding to the inlet and outlet of the electrolytic cell are provided with forward downward and forward upward ramps, respectively, for conveying above the electrolytic cell. The main rail part is horizontal, and the parts of the sub rail corresponding to the inlet and outlet of the electrolytic cell are provided with forward downward and forward upward slopes that are parallel to the ramp of the main transport rail. In a trolley conveyor in a line, the sub-rail portion above the electrolytic cell is wave-shaped when viewed from the side, and the above-mentioned hanging member has a hanger attachment member that is inverted U-shaped when viewed from the front, and the hanging member has a hanger attachment member on both left and right sides of the hanger attachment member. Elongated holes for pin insertion are drilled in the front and back sides of each wall in a roughly C shape when viewed from the side, and the upper frame of the hanger is equipped with a pair of front and rear pins that are inserted through these elongated holes. While the transported object is immersed in the liquid of the electrolytic cell and progresses, the pair of front and rear side rollers are guided by the corrugated sub-rail section when viewed from the side, and alternately move up and down back and forth. When the rear roller rises, the front pin of the hanger rises within the front elongated hole of the hanger mounting member, and when the rear side roller rises, the rear pin rises within the rear elongated hole of the hanger mounting member. The gist of this paper is a conveyed object swinging device for a trolley conveyor in a painting line, in which a hanger and a conveyed object placed on the hanger are swung vertically in an inclined manner.

Function In the above, the object to be conveyed, such as the car body, is placed on a hanger suspended via a hanging member and is conveyed, but when the object is conveyed to the painting line, the electrolytic cell is At the entrance, the trolley is guided to the front downward slope of the main transport rail, and the side rollers are guided to the front downward slope of the sub rail, so that the objects to be transported are diagonally immersed in the liquid of the electrolytic cell. It is introduced so as to penetrate into the world. Then, while the conveyed object is immersed in the liquid of the electrolytic cell and progresses, the pair of front and rear side rollers are guided by the corrugated sub-rail section when viewed from the side, and alternately move up and down back and forth, and the hanger moves forward and backward. Since it is attached to the hanging member via a pair of pins so that it can rise and fall, for example, when the front side roller rises, the front pin rises within the front elongated hole of the hanger attachment member,
In addition, when the rear side roller rises, the rear pin rises within the rear long hole of the hanger mounting member, and the hanger and the conveyed vehicle body placed on it swing vertically in an inclined manner. Therefore, the air inside the transported vehicle body is reliably discharged, and the transported vehicle body is completely painted. Finally, at the exit of the electrolytic cell, the trolley is guided to the front upward slope of the main transportation rail, and the side rollers are guided to the front upward slope of the sub rail, so that the transported vehicle The electrolyte is taken out diagonally upward and forward from the electrolyte in the electrolytic tank, and the electrolyte is quickly discharged from inside the vehicle body.

Embodiment Next, an embodiment of this invention will be described based on the drawings.

In this specification, the term "front" refers to the direction of movement of the conveyed object on the trolley conveyor, the term "rear" refers to the opposite direction, and the terms "left and right" refer to the forward direction.

In the drawing, 1 is a power rail made of I-shaped steel, 2 is a free rail made of a pair of left and right channel steel installed parallel to the underside of the power rail, and 3 is a power rail that is connected to the power rail 1 through rollers. a guided drive chain, which includes a pusher 4 with a hook-shaped tip;
are provided in a downwardly protruding manner at predetermined intervals.
5 is a carrier suspended on the free rail 2, which has a pair of tilting dogs 11,
12, a rear free trolley 7 with an accumulation cam 13, and intermediate free trolleys 8, 9 between them.
and a pair of front and rear connecting rods 10 that connect the front and intermediate free trolleys 6, 8 and the intermediate and rear free trolleys 9, 7, respectively.

14 is a suspension member 1 attached to the intermediate free trolleys 8 and 9.
5 is a hanger that can be opened and closed to the left and right. The suspension member 15 is a suspension member horizontally attached to a coupling member 16 connecting the pair of front intermediate free trolleys 8 and 8 and one rear intermediate free trolley 9 via vertical shafts 18 and 19, respectively. It is composed of a holding bar 17 and a hanger attachment member 20 which is placed over the holding bar and has an inverted U shape when viewed from the front, and is used for inserting pins into both the front and rear sides of the left and right side walls 20a and 20b of the hanger attachment member 20, respectively. The long holes 21, 21 are formed in a substantially C shape when viewed from the side. The hanger 14 consists of a pair of front and rear horizontal horizontal members 23 extending perpendicularly to the free rail 2, and a pair of left and right vertical members 24 connecting the two and extending in the length direction of the free rail 2. Hanger upper frame 22
and a pair of left and right swinging arms 25 attached to the upper frame 22 via a pivot so as to be freely openable and closable.
25. Connecting pins 27 and 27 for hanging the hanger are fixed to a pair of vertical members 24 and 24 of the hanger upper frame 22 via mounting brackets 26 and 26, and these pins 27 and 27 are attached to both left and right sides of the hanger mounting member 20. It is inserted into the long holes 21, 21 of the walls 20a, 20b.

28 is the vertical member 24 of the hanger upper frame 22;
24, and a hanger swinging side roller 29 is rotatably attached to the upper end of each support member 28 by a shaft.

Reference numeral 30 denotes a pair of auxiliary hanger swinging rails made of channel steel, one set on the left and right sides of the free rail 2, above the electrolytic bath 31 for electrocoating in the coating line A. They have the same waveform. 32 is hanger upper frame 2
This is a scattered electrolyte adhesion prevention plate installed horizontally on the lower side of 2.

In the above, the object W to be transported, which is the body of an automobile, is placed on the hanger 14 suspended from the carrier 5 via the suspension member 15 and transported.
As shown in Figure 3, in painting line A,
Portions of the free rail 2 corresponding to the inlet and outlet of the electrolytic cell 31 are arranged so that the transported vehicle body W is introduced obliquely into the liquid L of the electrolytic cell 31 and taken out obliquely from the liquid. are provided with front downward and forward upward ramps 2a and 2b, respectively, and a free rail portion 2c above the electrolytic cell 31.
is horizontal. On the other hand, in the portions of the sub-rail 30 corresponding to the inlet and outlet of the electrolytic cell 31, there are sloped parts 30a facing downward and upward parallel to the slopes 2a and 2b of the free rail 2, respectively.
30b is provided, and the sub-rail portion 30c above the electrolytic cell 31 has a corrugated shape when viewed from the side.

Now, when the car body W is transported to the painting line A, the free trolleys 6 to 9 are guided to the front downward slope 2a of the free rail 2 at the entrance of the electrolytic cell 31, and are guided to the side. Since the rollers 29 are guided forward and downward to the inclined portion 30a of the sub rail 30, the conveyed vehicle body W is introduced so as to plunge obliquely into the liquid L of the electrolytic cell 31. Next, while the conveyed vehicle body W is immersed in the liquid L of the electrolytic bath 31 and moves forward, the side rollers 29, which are a pair of front and rear and a pair of left and right, are guided by the corrugated sub-rail portions 30c when viewed from the side, and alternately move back and forth. The upper frame 22 of the hanger 14 is attached to the suspension member 15 so that it can be raised and lowered by a pair of front and rear pins 27, 27. For example, when the front side roller 29 rises, the front pin 27
rises in the front elongated hole 21 of the hanger attachment member 20, and when the rear side roller 29 rises, the rear pin 27 moves into the rear elongated hole 2 of the hanger attachment member 20.
1, and eventually the hanger 14 and the transported vehicle body W placed thereon swing vertically in an inclined manner, whereby the air inside the transported vehicle body W is reliably discharged, and the transported vehicle body The W coating is completely applied. Finally, at the exit of the electrolytic cell 31, the free trolleys 6 to 9 are guided to the forward upward slope 2b of the free rail 2, and the side rollers 29 are guided to the forward upward slope 30b of the sub-rail 30. To be guided, the transported vehicle body W
is taken out diagonally upward and forward from the liquid L in the electrolytic tank 31, and the electrolytic liquid L is quickly discharged from inside the vehicle body W.

In the above embodiment, sub rails 30 are provided on both left and right sides of the main transport rail 2 of the trolley conveyor.
are provided, and a pair of front and rear and a pair of left and right side rollers 29 attached to the hanger 14 are guided by these sub rails 30, respectively.
The sub rail 30 may be provided on at least one of the left and right sides of the main transportation rail 2, and the side rollers 29 may be correspondingly provided on the hanger 14 on the same side as the sub rail 30.

Effects of the invention As described above, a hanger swinging sub rail is provided on at least one of the left and right sides of the main transport rail of the trolley conveyor above the electrolytic cell in the coating line, and the main transport rail is A pair of front and rear side rollers for swinging the hanger is attached to the same side as the secondary rail of the hanger, which is suspended via a hanging member from a trolley that moves along the rail, and the side rollers are guided by the secondary rail. The parts of the main transport rail corresponding to the inlet and outlet of the electrolytic cell are provided with forward downward and upward slopes, respectively, and the main transport rail part above the electrolytic cell is horizontal, In a trolley conveyor in a painting line, where the parts of the sub-rail corresponding to the inlet and outlet of the electrolytic cell are provided with forward downward and forward upward slopes that are parallel to the slope of the main transport rail, respectively, The sub-rail part has a wavy shape when viewed from the side,
The hanging member has an inverted U-shaped hanger mounting member when viewed from the front, and long holes for pin insertion are formed in the front and back sides of the left and right walls of the hanger mounting member, respectively, and are approximately C-shaped when viewed from the side. The upper frame of the is equipped with a pair of front and rear pins that are inserted through these long holes. When viewed from the side, the front side rollers are guided by the corrugated secondary rail portion and alternately move up and down back and forth, and when the front side rollers rise, the front pin of the hanger rises within the front elongated hole of the hanger mounting member. Also, when the rear side rollers rise,
The rear pin moves up inside the long hole at the rear of the hanger attachment member, causing the hanger and the object placed on it to swing upward and downward in an inclined manner. The object to be transported, such as the vehicle body, can be tilted vertically while being immersed in the electrolyte, and the swing angle can be freely set, ensuring that air inside the object is thoroughly removed. It can be discharged and complete coating of the conveyed object can be achieved. Moreover, the device according to this invention has a very simple structure, and therefore the equipment cost is very low, and since there are no moving parts, there is no problem caused by adhesion of electrolyte or the like. Furthermore, depending on the type of the transported object such as a car body, the introduction and removal angles of the transported object relative to the electrolyte can be freely set by simply changing the shape of the sub-rail without changing the shape of the main transport rail. This brings about the effect that the electrolytic solution inside the transported object can be reliably inflowed and outflowed.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a cross-sectional view of a trolley conveyor equipped with the device of the invention, Fig. 2 is a side view of the same, and Fig. 3 is a side view schematically showing a coating line. It is a diagram. A...Painting line, W...Car body (object to be transported), 2...Free rail (main rail for transport), 2a, 2b...Ramp of main rail for transport corresponding to the entrance/exit of the electrolytic cell, 2c...Main rail portion for transportation, 5...Carrier, 6-9...Free trolley, 14...Hanger, 15...Hanging member, 20
...Inverted U-shaped hanger mounting members, 20a, 20b...
...Both left and right walls, 21...Elongated hole for pin insertion, 22...
...Upper frame, 26...Connecting pin, 27...Pin, 29...Hanger swinging side roller, 30...
...Hanger swinging sub rail, 30a, 30b...
Inclined part of sub-rail corresponding to electrolytic cell entrance/exit, 30
c... Wave-shaped sub-rail portion when viewed from the upper side of the electrolytic tank, 31... Electrolytic tank, L... Electrolyte.

Claims (1)

[Scope of utility model registration request] A hanger swinging auxiliary rail 30 is provided at least on one side of both left and right ends of the main transportation rail 2 of the trolley conveyor above the electrolytic cell 31 of the coating line A, and the trolley 8 moves along the transportation rail 2. , 9 via a hanging member 15, a pair of front and rear side rollers 29 for swinging the hanger are attached to the same side as the sub-rail 30 of the hanger 14, which is suspended from the hanger 14 via a hanging member 15. The portions of the main transport rail 2 that are guided and correspond to the entrance and exit of the electrolytic cell 31 are provided with front downward and forward upward ramps 2a and 2b, respectively, and the main transport rail portion 2c above the electrolytic cell 31 is provided with slopes 2a and 2b.
is horizontal, and the main rail 2 for conveyance is installed at the part of the sub rail 30 corresponding to the inlet and outlet of the electrolytic cell 31.
In a trolley conveyor in a painting line, which is provided with slopes 30a, 30b facing forward downward and forward upward parallel to ramps 2a, 2b, respectively, the sub-rail portion 30c above the electrolytic cell 31 has a corrugated shape when viewed from the side. The hanging member 15 has an inverted U-shaped hanger mounting member 20 when viewed from the front, and long holes 21, 21 for pin insertion are formed on both the front and rear sides of the left and right side walls 20a, 20b of the hanger mounting member 20, respectively. A hole is formed in a substantially C shape when viewed from the side, and is provided in the upper frame 22 of the hanger 14.
A pair of front and rear pins 27, 27 inserted through these long holes 21, 21 are provided, and the hanger 1
A pair of front and rear side rollers 2 move while the transported object W placed on the electrolytic tank 31 is immersed in the liquid L of the electrolytic cell 31 and moves forward.
9 is guided by the corrugated sub-rail portion 30c when viewed from the side and alternately ascends and descends back and forth, and
When the front side roller 29 rises, the hanger 1
The front pin 27 of No. 4 rises inside the front elongated hole 21 of the hanger attachment member 20, and the rear side roller 29
When the rear pin 27 rises, the rear pin 27 rises inside the rear long hole 21 of the hanger attachment member 20, and the hanger 14
and a conveyed object swinging device for a trolley conveyor in a painting line, in which a conveyed object W placed on the conveyed object W is swung vertically in an inclined manner.