JPH01145912A - Transport device - Google Patents

Abstract

PURPOSE:To enhance the transporting efficiency by moving a transport body by a guide roller on guide rails coupled at a certain angle to each other, and equipping the transport body with guide rollers which fit to the two guide rails. CONSTITUTION:A transport body 60 is fitted with six sets of rollers 61-66 each consisting of three rollers on the body 69 and other two sets of rollers 67, 68 each consisting of two rollers. The roller sets 61, 62, 65, 66 bear the transport body 60 movably on No.1, No.3 guide rails 21, 23 while the other roller sets bear the same movably on No.2, No.4 guide rails 22, 24. Accordingly components carried in from an inlet 20b are held by the transport body 60 and moved by chains 31, 41, 51 along the guide rails 21-24, and at this time, the guide rails are moved smoothly in cooperation with the rollers 61-68. This enhances the transporting efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION A1.Object of the invention (industrial application field) The present invention relates to a conveyance device that can continuously convey objects to be conveyed. The present invention relates to a conveying device that can efficiently convey by reducing the interval between the two.

(Prior Art) An example of a conventional apparatus for continuously conveying coated parts in a drying apparatus to dry the coated area is shown in FIG. 6.

The drying device has an inlet [a] into which painted parts are inserted, and an outlet 1b from which parts that have been dried in the device 1 are taken out. It has a drive chain 3 arranged in a loop.

A plurality of conveyance supports are attached to the drive chain 3 at predetermined intervals, and the conveyance supports support the parts 5 introduced from the inlet [a] and move them inside the drying device 1 in a loop according to the movement of the drive chain 3. are conveyed continuously. During this conveyance, the coating is dried and taken out from the outlet 1b.

(Problem to be Solved by the Invention) By using the conveying device installed in the drying device as described above, it is possible to continuously convey the object to be conveyed, but as can be clearly seen from the figure. It is necessary to increase the interval p1 between the parts attached to the drive chain to a certain extent so that the parts 5 to be transported do not come into contact with each other when the transport direction is reversed at the upper part of the apparatus. For this reason, there is a problem that the number of parts that can be placed into the drying device at the same time cannot be increased very much, and the transport efficiency is not very good.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a transport device that can reduce the distance between parts to be transported and has good transport efficiency.

Configuration of the Invention (Means for Solving the Problems) As a means for achieving the above object, the conveying device of the present invention comprises two parallel rails connected at a predetermined angle. 1 and 2nd guide rails, a transport body conveyed on these guide rails, and a 1st conveyor body disposed along each guide rail and moved at a predetermined speed, respectively.
and a second driving means and first and second engaging members that can be engaged with a conveyance body fixedly installed on each guide rail, and the conveyance body further includes first and second guide rollers provided thereon. The first engaging member is movably held on the first and second guide rails, respectively, and the first engaging member that engages with the conveying body when it is on the first guide rail is The contact part has a contact part that abuts and engages with the second guide roller, and when the transport body is transported on the first guide rail and is located at the connection part with the second guide rail, the contact part contacts the second guide roller. The guide roller is positioned in line with the rail and is configured to guide the second guide roller from above the contact portion onto the second guide rail to move the conveying body to the second guide rail.

(Example) Preferred examples of the present invention will be described below with reference to the drawings.

FIGS. 1A and 1B are a plan view and a front view of an apparatus for continuously painting and drying parts.

Which device includes a painting section W10 that paints unpainted parts;
A loading/unloading means 11 for transporting unpainted parts into the painting apparatus 10 and transporting them after painting is completed, and the painting apparatus 10
a loading means 12 for loading the painted parts into the drying oven 20; a transfer means 13 for transferring the parts from the loading/unloading means 11 to the loading means 12; Drying oven 20 for drying
and a carrying-out means 14 for carrying out the parts dried in the drying oven 20.

The drying oven 20 has an inlet 20b facing the carrying-in means 12 and an outlet 20c facing the carrying-out means 14, and the painted parts carried in from the inlet 20b by the carrying-in means 12 are transported by the conveying device according to the present invention. It is dried while being continuously conveyed inside the drying oven 20, and is carried out by the carrying-out means 14 through the outlet 20c.

This conveying device will be explained with reference to FIG. 2, which shows a cross section taken along the arrow -H. The conveyance device is disposed in a case 2Oa of a drying oven having an inlet 20b and an outlet 20c, and has a pair of rails 21a and 21b, 2 facing each other.
2a and 22b, 23a and 23b, and 24a and 24b have first to fourth guide rails 2], -24.

These guide rails 2] and 24 are connected to each other at right angles as shown, forming a rectangular conveyance route. A plurality of conveyance bodies 60, 60, . . . , 60 are attached so as to be movable along this rectangular conveyance route (the structure for this attachment will be described later). Incidentally, each of the transport bodies 60 is attached with a component holding means for receiving and holding the painted parts 5 carried in by the carrying means 12.

On the rear side of these first to fourth guide rails 21 to 24, a loop-shaped first drive chain (drive means) guided by four sprockets 35a to 35d has a rectangular shape and extends upward and downward. It is disposed along first and third guide rails 21 and 23 whose two sides extend vertically. Furthermore, the first to fourth guide rails 21
There are two sprockets 45 on the front side of ~24, respectively.
Second and third drive chains 41.51, guided by a, 45b and 55a, 55b and extending left and right, are arranged along the second and fourth kite rails 22, 24. In addition, in order to drive the re-drive chains 41, 51 in synchronization, a synchronizing chain 48 is applied to the sprockets 45a and 55a.

A plurality of first engagement arms are attached to the first drive chain 31 at predetermined intervals, and second and third engagement arms are attached to the second and third drive chains 31, respectively. . The first engagement arm is configured such that the first drive chain 31 is connected to the first or third guide rail 21, 23.
These kite trails 21.
23 and causes the transport body 60 to move on the guide rail 21.23. 2nd and 3rd
The engagement arm connects the second and third drive chains 41.51
is moved along the second and fourth guide rails 22 , 24 , it engages the transport body 60 on these guide rails 22 , 24 , and moves this body 60 along the guide rail 2 .
2. Move on 24.

The painted parts 5 carried into the lower part of the first guide rail 21 from the entrance 20b are held by a part holding means attached to the transport body 60 on the first guide rail 2]. In this state, the conveyance body 60 abuts and engages with the first engagement arm, and is conveyed upward on the first guide rail 21 by the drive of the first drive chain 31. When the first guide rail 21 is transported to the upper end, the second drive chain 41 is driven, the second engagement arm engages the transport body 60, and the second drive chain 41 is driven to move the second guide It is transported to the left on the rail 22. When the transport body 60 is transported to the left end of the second guide rail 22,
The first drive chain 31 is driven again, the first anchoring arm engages with this conveyance body 60, and this time it is conveyed downward on the third guide rail 23. When the transport body 6 is transported to a position facing the outlet 20c of the drying oven, the transport body 6
The component 5 held by the component holding means 0 is carried out by the carrying-out means 14 through the outlet 20c. In addition,
After the transport body 6o is transported to the lower end of the third guide rail 23, it engages with the third engagement arm and is transported to the right on the fourth guide rail 24 by the third drive chain 51,
It is returned to the first guide rail 21.

When parts are transported as described above, the first
Transition from the guide rail 21 to the second kite rail 22,
The transition from the second guide rail 22 to the third kite rail 23 simply changes the transport body 6o from vertical movement to lateral movement, so as is clear from the figure, the transfer body 6o is held by the adjacent transport body 60. Even if the interval P2 (distance between conveyor bodies) between the transferred parts is made small, the parts will not come into contact with each other during the above-mentioned transfer, and this interval P2 can be made considerably smaller. Therefore, the arrangement density of the conveyed parts in the drying oven 20 is increased, and the size of the drying oven 20 can be reduced.

The details of the structure for performing the above transition are as follows: The transport body 60 from the second guide rail 22 to the third guide rail
This will be explained using FIG. 3 and FIG. 4, taking the transition as an example.

The inner rails 22a and 23a and the outer rails 22b and 23b of the second and third guide rails 22 and 23 are connected at right angles, so that the second and third guide rails 22, 23, 23 are connected at right angles. A second drive chain 41 and a synchronization chain 48 guided by a sprocket 45a are arranged on the front side of the guide rail 22, 23, and on the rear side,
First drive chain 31 guided by sprocket 35b
is installed.

The conveyance body 60 is made by attaching to a main body 69 six roller sets 61 to 66 each consisting of three rollers and two roller sets 67°68 consisting of two rollers. . Of these, roller sets 61, 62 and 6
5.66 are disposed vertically and protrudingly on both left and right sides of the six main bodies, and the conveyor body 60 is connected to the third guide rail 2.
3 (or the first guide rail 21), it plays the role of movably attaching the transport body 60 to this guide rail 23 (21).

Therefore, the center rollers 61a, 62a, 65a, 66a of each roller set 61, 62, 65.
The left and right roller pair 6 is disposed so as to come into contact with the end surface of the
1b and 61c, 62b and 62c, 65b and 65c, 66b and 66c are arranged so as to sandwich the rail 23a or 23b from left and right.

These four roller sets 6], 62, 65, and 66 move the transport body 60 to the first or third guide rail 2.
It can be firmly attached between the pairs of rails 1 and 23 and movable in the extending direction (vertical direction) of the rails.

Central rollers 61a, 62a, 65 of the above four roller sets
a, 66a, the transport body 60 is connected to the second guide rail 22
(or on the fourth guide rail 24),
This guide rail 22 is brought into contact with the end surfaces of the naz rails 22a and 22b, and the remaining roller sets 6
3,64°67.68, and the conveyor body 60 is firmly attached to the second or fourth guide rails 22, 24 so as to be movable in the direction in which the rails extend.

This attachment will be explained using FIG. 5 in addition to FIGS. 3 and 4. FIG. 5 is a perspective view showing the roller set when the conveyance body 60 is on the second guide rail 22, and the conveyance body 60 is symmetrical when viewed from the front (in the state shown in FIG. 3). , right half roller set 61.6
Only 2,63°68 is shown through the six main bodies.

As can be seen from FIG. 5, the lower rail constituting the second guide rail 22 includes a rail 22a facing the upper rail 22b, and a rail 22c disposed behind and parallel to this rail 22a. It is composed of. When the conveyance body 60 is on such a second guide rail 22, the central roller 6 of the roller set 61 (and 66)
1a (and 66a) are in contact with the upper rail 22b, and the roller set 68 (and 67) is in contact with this rail 22b.
The central roller 6 of the roller set 62 (and 65)
2a (and 65a) comes into contact with the lower front rail 22a,
The central roller 63a (and 64a) of the roller set 63 (and 64) comes into contact with the rear lower rail 22c, and the left and right rollers 63b, 63c (and 64b, 64c) sandwich this rail 22C.
is movably and firmly attached to the second guide rail 22.

When the second drive chain 41 is driven, the conveyance body 60 attached to the second guide rail 22 in this way is moved to the second engagement arm 42 fixedly attached to the chain 41.
As shown in FIGS. 3 and 4, the conveyor body 60 abuts and engages with the right side surface of the six main bodies, and as the second drive chain 41 is driven, the conveyor body 60 moves along with this chain 41 on the second guide rail 22. Transported to the left.

° Here, the engagement arm 32 fixed to the first drive chain 31 at a predetermined interval has a plate member extending left and right between the first or third guide rails 21, 23. This plate member is attached to the rear lower rail 22.
It is located on the same plane as c. When the conveyance body 60 is conveyed on the second guide rail 22 as described above, prior to this conveyance, the upper end surface contact portion 32a of the plate member of the first engagement arm 32 is brought into contact with the first drive chain 31. is moved so as to be positioned on the same straight line as the rear lower rail 22c. Therefore, when the conveyance body 60 is conveyed to the left on the second guide rail 22, the roller sets 63, 6
4 moves from above the rear lower side rail 22c onto the upper end surface contact portion 32a of the first engagement arm 32, and the transport body 60 moves to the second
It is smoothly conveyed to the left end of the guide rail 22, and at this point the driving of the second drive chain 41 is stopped.

In addition, when conveyed to the left end, the roller sets 61 and 62 abut and hold the outer rail 23b of the third guide rail 23.

Next, the first drive chain 31 is driven, and the first engagement arm 32 is moved down along the third guide rail 23.

This first engagement arm 32 has a roller set 6 as shown in the figure.
Since the conveyor body 60 is in abutting engagement with each other via the first drive chain 31 and the first drive chain 31, the conveyor body 60 is also moved downward at the same speed as the first drive chain 31. During this downward movement, the roller set 61
62, 65, 66 abut and hold the left and right rails 23a and 23b, and move the transport body 60 on the third guide rail 23.

As mentioned above, in the examples shown in FIGS. 1 to 5,
Although an example has been shown in which the conveyance route formed from the fourth guide rail is formed on a vertical plane, and the conveyance body 60 and the conveyed object held therein are conveyed vertically, this conveyance route is formed on a horizontal plane. Furthermore, it may be formed on a slope. Moreover, it goes without saying that the connection angle of the first to fourth guide rails is not limited to a right angle, and the number of guide rails may be increased to make the conveyance route not rectangular but more complex in shape. In this example, a chain is used as the driving means, but a belt or the like may be used instead of the chain. Further, the conveyance device of this example is disposed in a drying oven for drying painted parts in a coating device, but the conveyance device according to the present invention is disposed in such a drying oven. Of course, it is not limited to things.

C1. Effects of the Invention As explained above, according to the present invention, the first engaging member abuts and engages with the second guide roller for movably attaching the transport body to the second guide rail. the conveyor body is conveyed on the first guide rail and
When located at the connecting portion with the guide rail, the contact portion located in line with the second guide rail guides the second guide roller onto the second guide rail, and moves the conveying body onto the second guide rail. Since the conveyor body is designed to move smoothly, it is possible to smoothly convey the conveyor body between the guide rails connected at a predetermined angle. For this reason, for example, by connecting four guide rails in a rectangular shape and transporting the transport body continuously along this rectangular route, the objects to be transported held on the transport body can be continuously transported. Further, even if the distance between the objects to be transported is reduced, the objects to be transported will not come into contact with each other when the transport direction changes during transition between guide rails. Therefore, it is possible to increase the density of objects to be transported on the transport device, and it is possible to downsize the transport device.

[Brief explanation of the drawing]

Figures 1A and 1B are a plan view and a front view of the painting/drying device; Figure 2 is a schematic cross-sectional view of the drying oven taken along arrows ■-■ in Figure 1B, showing the conveying device; 4 and 5 are a front view, a side view, and a perspective view showing an enlarged part of the above-mentioned conveyance device, and FIG. 6 is a schematic diagram showing a conventional conveyance device.

Claims (1)

[Claims] 1) a first guide rail consisting of two parallel rails;
a second guide rail consisting of two parallel rails and connected to the first guide rail at a predetermined angle; a conveying body conveyed on the first guide rail and the second guide rail; a first drive means disposed along a first guide rail and moving at a predetermined speed; and a first engagement member fixedly attached to the first drive means and capable of engaging with a conveyance body on the first guide rail. a second driving means disposed along the second guide rail and moving at a predetermined speed;
a second engaging member fixedly attached to the second driving means and capable of engaging with a conveying body on the second guide rail; a first guide roller movably held by the first guide rail while being sandwiched between book rails; a second guide roller movably held on a second guide rail; the first engaging member has an abutting portion that abuts and engages with the second guide roller; and the conveying body When conveyed on the first guide rail and positioned at the connecting part with the second guide rail, the abutting part is located in line with the second guide rail, and the second guide roller is moved to the abutting part. A conveyance device, characterized in that the conveyance body is guided onto the second guide rail from above, and is capable of moving the conveyance body onto the second guide rail.