JPH0373237A - Method for shunt carrying article in production line and article shunting carrier - Google Patents

Abstract

PURPOSE:To shunt articles to shunting tracks for escape by setting plural sets of article receiving/delivering branch lines at a desired position in a production line, and providing less plural sets of shunting lines for escape than above set shunting tracks so that it may oppose to the above set branch lines to deliver the articles jammed on a production line to a carrier for article escape. CONSTITUTION:To shunt the articles temporarily to shunting lines 4A, 4B for escape from a main rail 2 because of delayed handling of articles carried on the main rail 2 of a production line 1 or for some reason, first, either of the shunting line 4A for escape opposing to the article receiving/delivering branch lines at the final terminal of which the articles carried are on standby, or shunting line 4B for escape at one line on this side of the article receiving/delivering branch lines at which articles are on standby is selected, of less sets than the article receiving/delivering branch lines for the desired position on the main rail of the production line at the final terminal of which the articles carried are on standby, for example, some article receiving/delivering lines 3A, 3B, 3C branched in parallel at the final terminal on the line.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to, for example, a production line in a small area.
The present invention relates to an article evacuation conveyance method suitable for efficiently manufacturing articles such as concrete products, and an article evacuation conveyance truck.

[Conventional technology]

Conventionally, when manufacturing concrete products such as underdrains, open drains, sewage drains, and water collection basins on a production line, a formwork is placed on top of the conveyor that forms the line (a framing process). Next, the concrete is poured into the formwork installed at the later stage of the line using a pouring machine (casting process), then the concrete is cured in the formwork (curing process), and then Finishing the surface of a semi-finished product with a fine grain using a tool such as a trowel (trowel finishing), followed by a consistent process and work such as releasing the mold at the final stage (mold release process). The product was manufactured by.

[Problem to be solved by the invention]

In this way, when manufacturing concrete products on a conventional production line, each work such as framing, pouring, troweling, and mold release is often performed manually, which is time-consuming and requires a lot of work, whether skilled or unskilled. The processing time required for each task varied depending on the expert, and was not uniform.

By the way, during normal production, products are transported onto the production line so that one product is manufactured, with the total processing time required for each work process as one cycle. When performing work, etc., the time required for demolding work to disassemble the formwork varies depending on whether the structure of the formwork is simple or complex. It takes a lot of time and effort. Even if a production line is installed with a large area in accordance with this, the movement of the entire line will stop due to delays in the transportation of the items packed into the formwork in the demolding work area, and the product will not be produced. This had the disadvantage of reducing production efficiency.

[Means to solve the problem]

In order to solve the above-mentioned problem, the method invention in the specified invention of the present application is to install a small number of sets of branch lines facing the plural sets of article receiving/delivery branch lines branched in parallel at desired positions on the main rail of the production line. The above-mentioned article evacuation transport trolley consists of a parent trolley that is movable on the evacuation lead-in line, and a child trolley that is mounted on the upper surface of the parent trolley so that it can move freely in a direction perpendicular to the moving direction of the parent trolley. a step of selecting one of the evacuation lead-in lines and transporting it; and selecting a desired one of the article receiving/delivery branch lines of the line and moving the child carriage onto the parent carriage in a direction perpendicular to the moving direction. The method comprises a step of determining a delivery line or a receiving line for the goods by running the goods by itself, and adopting a means of receiving and delivering goods between the goods receiving/delivery branch line and the goods evacuation carriage. .

In addition, the invention of the product as the related invention of the present application includes a plurality of appropriately set article receiving/delivery branch lines branched in parallel at desired positions on the main rail of the production line, and In order to receive and deliver goods to and from the evacuation lead-in line, which has several sets of fewer than A movable branch line is provided on the - side so that the fixed branch lateral line can be extended, and a parent carriage is provided on one of the desired evacuation lead-in lines so as to be able to move freely, and a conveying means is provided on the upper surface, A means is adopted in which a child truck is mounted on the upper surface of the parent truck so as to be able to move freely on the fixed branch horizontal line and the movable branch horizontal line.

[For production]

First of all, in order to temporarily evacuate the goods from the main rail to the evacuation lead-in line due to a delay in the work processing of the goods being transported along the main rail of the production line, it is necessary to temporarily evacuate the goods from the main rail to the evacuation lead-in line. A desired position of the main rail, for example, for several article receiving/delivery branch lines branched in parallel at the end of the line, the article is transported to the terminal end of several sets of article receiving/delivery branch lines that are smaller in number than the article receiving/delivery branch lines. By selecting either the evacuation lead-in line opposite to the goods receiving/delivery branch line where the goods are waiting, or the evacuation lead-in line that is, for example, one position before the goods receiving/delivery branch line where the goods are waiting. ,
A transportation trolley for evacuation of goods is driven by itself and confronted nearby.

Next, if the goods reception/delivery branch line where the goods are waiting and the subcart of the mobile cart for goods evacuation do not face each other, after extending the route of the branch horizontal line by moving the movable branch horizontal line, , the child truck is driven in a direction orthogonal to the moving direction of the parent truck to a position that coincides with the article receiving/delivery branch line where the article is waiting at the end.

Then, the article is transferred from the article receiving/delivery branch line to the conveying means of the subcarriage and placed at a desired position.

The child cart then moves on its own on the branch horizontal line on the parent cart to its original position, drives the movable branch horizontal line to its original position, folds it, and then returns to the goods evacuation transport cart with the article still placed thereon. The will automatically run along the evacuation lead-in line in the original direction to the required position and then stop.

In this way, by conveying the congested articles one after another on the main rail of the production line to the evacuation line through the vacant article receiving/delivery branch line, processing operations can be carried out at the same time. To efficiently produce products by transporting articles smoothly on the main rail of a production line.

〔Example〕

Hereinafter, details of one embodiment of the specified invention of the present application will be explained in conjunction with the apparatus used in accordance with the drawings in the case of manufacturing concrete products.

First, the operation of receiving article A from the production line will be explained.

As the first step, as shown in Figure 1, the production line 1
A plurality of sets of article receiving/delivery branch lines 3A, 3B, 3 branched in parallel in three rows at a desired position of the main rail 2, for example, at the final stage.
Opposed to C, a smaller number of sets (-ship type;
n-1, n-2, . . .> In this embodiment, the article evacuation transport cart 5 is made to be able to move freely on evacuation lead-in lines 4A and 4B arranged in two rows. At this time, on the main rail 2 of the production line 1, the article A is transported as follows.
For example, form-setting work in form-setting work area 0, concrete pouring work in the subsequent pouring work area P, and trowel finishing work area Q.
Due to congestion for some reason, such as overtime for finishing work with a trowel in the curing work area R, curing work in the curing work area R, and demolding work in the mold release work area S, etc., If the production efficiency decreases, the goods receiving/delivery branch line 3A, 3B, 3C is installed in any of the goods receiving/delivery branch lines 3A, 3B, 3C whose lines are open at the end of the line. As mentioned above, using the communication trolley 6 that moves back and forth in the vertical direction in the figure to enable communication between the two, the first item to be delivered to the item in the traffic jam is conveyed, and the item is placed on standby so that the item can be delivered. .

At this time, as shown in Figure 1, article A is transferred to article receiving/delivery branch I.
If the item is waiting at the IA3A(7)# end, move the empty article evacuation carriage 5 to the article receiving/delivery branch line 3A in the first row where article A is waiting as described above. In the case where the second row article receiving/delivery branch line 3B is empty and the article type from the production line 1 is sent to it and is on standby, the first row evacuation lead-in line 4A is also used. The empty article evacuation carriage 5 is made to be ready for delivery by moving it to a predetermined position facing the article receiving/delivery branch line 3A in the first row, so that the article A can be delivered. (Note: At this time,
The article evacuation carriage 5 is located at the first row evacuation lead-in line 4A, and the article A is waiting at the second line article reception/delivery branch line 3B. (It is not possible to transfer it to

The article evacuation carrier 5 is mounted on a parent truck 7 that can move freely along the three rows of article receiving/delivery branch lines 3A, 3B, and 3C, and on the upper surface of the parent truck 7. It is formed from a subcarriage 8 that can move freely in a direction perpendicular to the direction of movement.

The parent truck 7 has four wheels 9a arranged on the front, rear, left and right sides of the rails of the evacuation lead-in lines 3A and 3B.

A substantially rectangular base 10 supported by 9b, 9c, and 9d, and a switch box (not shown) mounted on the base 10.
two motors M1 as drive sources whose rotation direction rotates forward or reverse upon activation of a switch disposed in the motor M1; a motor 11 of the motor M1;
It is formed from small gears 13 and 14 as power transmission parts mounted so as to mesh with the axle shaft 12 of 9b, respectively.

Reference numeral 15 indicates the base 1 of the parent truck 7 so that the child truck 8 can move freely in a direction orthogonal to the moving direction of the parent truck 7.
This branch horizontal line 15 is installed in an extendable manner on one side of the base 10, and this branch horizontal line 15 is connected to a fixed branch horizontal line 15A installed parallel to the upper surface of the base 10, and rotates at the end of the fixed branch horizontal line 15A. It is formed from a movable branch horizontal line 15B which is freely pivoted.

16 rotates the movable branch horizontal line 15B in a rotating range of about 90 degrees consisting of two positions, approximately vertical and approximately horizontal, so that it can be raised and lowered, in order to make the child truck 8 movable. This traction means 16 is a hoisting machine as shown in the figure. This hoisting machine includes, for example, a motor M2 as a drive source, and a motor M2 as a drive source.
The drums 18a and 18b for hoisting are attached to the motor shaft 17 of No. 2, and one end is fixed to the drums 18a and 18b, and the other end is attached to a support rod 20 via an appropriate number of pulleys 19 for direction change. ．． It is formed of a coil spring 21 and a wire 23 fixed to the movable branch horizontal lines 15B, 15B via a shock-absorbing connecting part such as a detent 22.

The child truck 8 is connected to the article receiving/delivery branch lines 3A and 3B.
, 3C, a conveyance means 24 such as a conveyor provided in the longitudinal direction of the upper surface of a base 32 (to be described later) of the subcart 8, and a conveyor 24 mounted on the base 32. and a self-propelling means 25 for self-propelling in a direction orthogonal to the moving direction of the parent truck 7.

Of these, the conveying means 24 is passively rotated by a motor M4 as a driving source and the driving force from the motor M4 via power transmission parts such as sprocket s and s' chain C attached to the motor shaft. As shown in FIG.
Sprocket 28 as a power transmission component fixed to 7
゜28; 28, 28 and the sprocket 28.28; 2
8, 28, and has a locking pawl 29a protruding from the lower surface of the transfer bar (H) as appropriate locking means that can be freely engaged and detached in order to convey the article A, and the partition plate 26.
．． It is formed from several rollers 30 rotatably provided between the partition plate 26 and the base 32 on the outside of the partition plate 26.26.

Further, the self-propelled means 25 has four wheels 31a, 3 disposed on the rails of the fixed branch horizontal line 15A and the movable branch horizontal line 15B, which constitute the branch horizontal line 15, front and rear, left and right.
A substantially rectangular base 32 supported by 1b, 31c, and 31d, and a conveyance direction perpendicular to the longitudinal direction of the base 32 by being mounted on the base 32 and rotating in the normal or reverse direction. Two motors M as drive sources for switching forward or reverse direction, and a power transmission component installed so as to mesh with the motor shaft of the motor M3 and the axle 33 of the wheels 31a and 31b, respectively. Small gear 34.3
5.

36 is the article receiving/delivery branch line 3A, 3B.

In order to smoothly receive or deliver the article A to 3C, it is a lifting means provided between the parent cart 7 and the child cart 8, and this lifting means 36 has four links arranged to intersect with each other. 37° 37; 38.38 are rotatably connected at the top and bottom by pivot shafts 39a, 39b; 39c, 39d, and approximately the center of the links 37.37; 38, 38 is pivotally connected by a rotation support shaft 39e, and the link 38.
A cylinder rod 41a is attached to a drive shaft 40 installed between 38 and 38.
It is formed from a hydraulic cylinder 41 whose tip end is pivotally connected (see Fig. 5).

Next, in order to facilitate the acceptance or delivery of the article A as a second step, during the transportation of the article evacuation carrier 5, for example, a timer is set, or the article evacuation carrier 5 is transported to a predetermined position. Switch S indicates that it has been transported.
When detected at l, the hydraulic cylinder 41 of the elevating means 36
is driven and the cylinder rod 41a extends, the links 37, 37; 38, 38 extend, and the child truck 8
As shown in the imaginary line in Figure 5, the height of the
The height will be higher than the height of the transport means such as conveyors on the delivery branch lines 3A, 3B, and 3C (Note: When the goods are delivered and the load on the goods is applied to the goods evacuation carriage 5, the child carriage 8
and the heights of the article receiving/delivery branch lines 3A, 3B, and 3C are approximately horizontal, resulting in just the right height).

After that, as a third step, in order to smoothly receive or deliver the article A waiting at the end of the line, one of the article receiving/delivery branch lines 3A, 3B, and 3C where the article A is waiting The slave truck 8 is made to travel on its own in a direction perpendicular to the moving direction of the parent truck 7 to determine a delivery line or a receiving line for the article.

For this purpose, when the article A is located at the end of the article receiving/delivery branch line 3A in the first row, as shown in the imaginary line in FIG. It would be fine if it were to run on its own in close proximity to the receiving/delivery branch line 3A, but due to the circumstances of the production line, the article A would be placed in the second row of the article receiving/delivery branch line 3.
When the main cart 7 is waiting at the end of the main cart 7, it remains located on the first row evacuation lead-in line 4A in close proximity to the first row article receiving/delivery branch line 3A. The movable branch horizontal line 15B is rotated approximately 90 degrees from the substantially vertical position shown by the solid line in FIG. After the extension and installation, the motors M3 and M3 are rotated to make the subcarriage 8 move along the branch horizontal line 15 to the position shown on the imaginary line in the direction of arrow A, and move it to the article receiving/delivery branch horizontal line 3A. , 3B.

Any article A among 3C is made to move to a desired position where it is waiting.

Thereafter, as a fourth step, the motors of the conveyance means of the article receiving/delivery branch lines 3A and 3B on which the article A is waiting at the terminal end are rotated and driven, and the motor M4 of the conveyance means 24 of the sub-truck 8 is driven. Sprocket 28.28; 28,28
, by rotating the chenos 29, 29 counterclockwise, the article A is received from the article receiving/delivery branch lines 3A, 3B onto the conveying means 24 of the slave truck 8 of the article evacuation conveyor truck 5, and is transferred to the desired position. let

In this way, when the child truck 8 receives the article A, in the fifth step, the article evacuation conveyance truck 5 is moved into a self-propelled state by the locking pawls 29a provided on the chino 29, 29 coming into contact and turning on the switch S2. The motor Ml IM rotates to convey the evacuation lead-in line 4A to its original position, and when it contacts the switch S6, the rotation of the self-propelling motors M, , M+ of the parent truck 7 is stopped, and the movement (self-propelling) is stopped. Stop.

At this time, if the article A is delivered from the article receiving/delivery branch line 3B to the sub-truck 8, the switch S2 is activated.
By rotating the motors Ms and Ms in the opposite direction to the above operation, the child cart 8 is transported to the original position in a direction perpendicular to the parent cart 7 until the switch S1 is contacted and turned off, and the motors M3 and Ms are rotated. By stopping, the conveyance is stopped.

Thereafter, the motor M2 is reversely rotated by this signal to wind up the wires 23 and 23 on the drums 18a and 18b, thereby rotating the movable branch horizontal line 15B from a substantially horizontal position to a vertical position and folding it (solid line in Fig. 5). reference).

From the formwork by disassembling the formwork as the sixth step,
The concrete product is released from the mold and taken out to obtain the product.

Continuing further, the process then shifts to the delivery operation for article A.

In this process, as the seventh step, the self-propelling motor M+,
By rotationally driving M+ in the opposite direction, the article evacuation carriage 5, which has the child carriage 8 on the top surface of the parent carriage 7 with the empty formwork after mold release placed on the conveyance means 24, is moved to the empty article. The motors M+ and M+ are allowed to run toward one of the receiving/delivery branch lines 3A, 3B, and 3C until the switch S1 is turned off and the motors M+ and M+ are stopped.

As the eighth step, as described above, the motors M, .
8. When the cheno 29.29 is rotated counterclockwise,
The locking pawl 29a engages with the transfer bar (H), and the article A is conveyed from the conveying means 24 of the sub-truck 8 toward the article receiving/delivery branch line 3A of the production line 1, and is delivered.

At this time, the motor of the conveyor of the article receiving/delivery branch line 3A is connected to the motor M+ of the conveying means 24, ? Needless to say, it is rotated in synchronization with vL.

In addition, if the article reception/delivery branch line 3A is clogged with articles already conveyed, as described above, the self-propelled motors M, , M are stopped and at the same time, the motor M4 is driven to drive the drums 18a, 18b is rotated in the opposite direction to loosen the wire 23, and the movable branch horizontal line 15B is rotated and driven around the rotating support shaft to extend it.

Thereafter, the self-propelled motors Ms and M3 are rotated to move the child cart 8 to the parent cart 7 to either the empty article receiving/delivery branch line 3B or 3C, and switch S4
．． The article is moved to a predetermined position perpendicular to the direction of movement until it contacts the SS, and the motor M4 of the conveying means 24 is rotated in the same manner as in the previous step, and the chains 29, 29 are rotated clockwise. is delivered to article receiving/delivery branch lines 3B and 3C.

After the article A is delivered, the switch 82' is activated and the conveyance means 2
The rotation of the motor M4 for driving No. 4 stops. In addition, in FIG. 1, 5o is a conveyor part for communication.

Since the specified invention of the present application and related inventions have the above-described configuration, firstly, the case of manufacturing concrete products will be explained.The motor of the conveying means in the production line 1 is driven,
As is the case with the prior art, as the article A serving as a formwork is transported, mold-setting work, pouring of fresh concrete using a pouring machine, finishing work with a trowel, and curing work are sequentially performed.

For example, the demolding work after the fresh concrete has been cured and solidified can be done within the demolding work area S during normal times when the work is being carried out without traffic jams.

However, in order to prevent the mold release work from being completed in time within the mold release work area S, causing a delay in transporting the products on the production line l and stopping the production of products on the line,
Ready-mixed concrete is filled in formwork A, and article A, which has been cured and hardened, is transferred to article receiving/delivery branch line 3 for demolding work.
They are sequentially sorted into A, 3B, or 3C and transported.

This is carried out by a connecting vehicle 6 that connects and reciprocates between the goods receiving/delivery branch lines 3A, 3B, and 3C.
Empty goods receiving/delivery branch lines 3A, 3B, 3C
By selecting one of these and making contact with the article A or the transfer pallet H, the article A is conveyed until the motor is stopped by detection of the switch of the conveyor means (conveyor), and waits at the terminal end.

When a pushbutton switch (not shown) on a switch box or the like is pressed, the self-propelled motors M, , M are driven, and the wheels are transmitted via small gears 13 and 14 as power transmission parts. 9a and 9b rotate clockwise, the article evacuation carriage 5 moves toward the article, for example, on the rail of the evacuation lead-in line 3A, and the base lO comes into contact with the stop switch S4, thereby causing the motors M+, M+ continues to move until it stops rotating.

At this time, while the article evacuation carrier 5 is moving, the child trolley 8 is
Alternatively, when a predetermined time set by the timer has elapsed, the hydraulic cylinder 41 of the lifting means 36 is driven, and the link 37.
37; 38. By extending 38, the installation height will be the fifth
It rises from the low position shown by the solid line in the figure to the high position shown by the imaginary line, so that the goods A can be smoothly received or delivered to the goods receiving/delivery branch lines 3A, 3B, and 3C. Height adjustment is performed.

When the conveyance of the article evacuation carriage 5 is stopped, the motor M4 of the conveyance means '24 such as a conveyor of the child carriage 8 is rotated based on the signal from the switch S4, and the sprockets 28, 28; and locking claws 29a, 2
At the same time as the chino 29, 29 having the handle 9a rotates counterclockwise, the motor (
(not shown) rotates and drives, the article A is rotated and driven by the locking claw 29.
a.

When the transfer pallet H is locked by the transfer pallet 29a, the article is transferred from the receiving/delivery branch line 3A to the child cart 8, and the rotation of the motor M is caused by the locking claw 29a to the switch S2.
is conveyed and placed on the sub-truck 8 until it comes into contact with the robot and turns off and stops rotating.

In this way, the article A is completely placed at the desired position on the child carriage 8.

By the way, if the article receiving/delivery branch line 3A in the first row is just blocked by a preceding article and the article receiving/delivery branch line 3B in the second row is empty, the article evacuation carriage 5 in the approaching direction is controlled by the self-propelled motor M1.5 by the switch S1. At the same time, the motor M of the traction means 16 is stopped by the signal from the switch S1.
2 rotates, and the wires 23 and 23 are paid out by the rotation of the drums 18a and 18b, so that the movable branch horizontal line 15B
is rotated from the substantially vertical position shown by the solid line in FIG. 4 to the substantially horizontal position shown by the imaginary line, and is extended.

When it is detected that the movable branch horizontal line 15B contacts the switch S1 and the branch horizontal line 15 is extended, the motors M3 and M3 for self-propulsion of the child bogie 8 are driven, and the small gear 3
Wheel 31a via 4.35.

31b rotates and drives, the child carriage 8 is rotated and driven.
As shown in the figure, the base 32 contacts the switches S, , S, in a direction perpendicular to the longitudinal direction along the branch horizontal line 15, and the motors M, , M3 stop, and the child truck 8 and the article receiving It runs on its own until the solid axes of the delivery branch line 3B coincide, and then stops.

Thereafter, the article A is conveyed from the article receiving/delivery branch line 3B onto the conveying means 24 of the sub-truck 8 in the same manner as in the above operation.

In this way, when the article A is placed on the conveyance means 24 and delivered, the motors M, , M are rotated and driven again by the signal from the switch S2, and the article evacuation conveyor 5 is rotated and driven again.
is self-propelled until the base 10 comes into contact with the stop switch S6 and the self-propelled motors M, , M, stop rotating, and then move away from the article receiving/delivery branch line 3A.

By the way, as described above, when the movable branch horizontal line 15B is extended and the article A is delivered from the article reception/delivery branch line 3B to the sub-truck 8 and placed thereon, the motors M3 and Ms are rotated, and the wheels 31a , 31b rotates, the child carriage 8 moves in the original direction perpendicular to the movement direction, contacts the switch S7, and turns off the remoter M3. M3 stops rotating and self-propulsion stops.

At the same time, the motor M rotates in the opposite direction, causing the drum 18 to
Since the wires 23 a and 18b are wound up, the movable branch horizontal line 15B rotates from the approximately horizontal position shown in FIG. In the same manner as the above operation, the evacuation lead-in line 4A is returned.

In this way, the assembly of the formwork is released at the evacuation lead-in line 4A distant from the production line 1, and the mold release work is performed, so that the product A is congested due to mold release in the mold release work area S of the production line 1. You can concentrate on producing products without reducing production efficiency.

For example, in this embodiment, in order to return the article A (formwork) placed on the sub-truck 8 from which the mold has been released to the top of the production line 1 from the evacuation lead-in lines 4A, 4B, Either the article evacuation carriage 5 is self-propelled along the lead-in line 4B toward the second row article receiving/delivery branch line 3B to deliver the article A, or
Or, after rotating and extending the movable branch horizontal line 15B, and making the child truck 8 run by itself in the direction perpendicular to the movement direction with respect to the parent truck 7, the goods in the third row as an empty route By delivering the article A (empty mold) to the receiving/delivery branch line 3C, it is again put to use on the production line 1.

Thereafter, the article evacuation carriage 5 is powered by self-propelled motors M, , M, by operating the switch box.
It rotates in the opposite direction and runs on its own, goods receiving/delivery branch line 3B, 3
Go far away from either C and wait.

In addition, in the above-mentioned embodiments of each invention of the present application, the production line l
As shown in the figure, the goods receiving/delivery branch lines are lined up at the end of the line.
3, and the evacuation lead-in lines 4A and 4B facing this are smaller in number, for example, two sets of n-1, but the number of installation of these article receiving/delivery branch lines and evacuation lead-in lines is as follows. Not limited. In addition, in this embodiment, article receiving/delivery branch lines 3A, 3B, 3C and evacuation lead-in lines 4A, 4B are arranged facing each other in parallel at the end of the production line 1 in order to efficiently perform mold release work. However, when considering the case of manufacturing concrete products, it is not limited to demolding work, and in preparation for congestion of other work such as mold setting, pouring, curing, and troweling, goods receiving/delivery branch lines and evacuation lines are necessary. It is also possible to install a lead-in line, a carriage for evacuation of goods, etc. Furthermore, in this embodiment, a production line for manufacturing concrete products has been described, but this is merely an example and is not limited thereto.

Further, in order to transfer the child truck 8 in a direction orthogonal to the moving direction of the parent truck 7, in this embodiment, the branch horizontal line 15 is extended by a rotation method, but the present invention is not limited to this, and the extension method is not limited to this, but a folding method or a horizontal extension method can be used. Branching horizontal line 1 depending on the feeding method in the direction
5 can also be extended. Also, the main trolley 1 can be rotated.
Although the length of the movable horizontal branch line 15B pivotally connected to the movable horizontal branch line 15B corresponds to the number of installed branch lines 3A, 3B, and 3C, the length can be easily increased or decreased.

Furthermore, in each of the above inventions, the article evacuation carriage 5 is brought closer to the article receiving/delivery branch lines 3A, 3B, 3C,
Alternatively, in order to move the item A far away, the button on the switch box is pressed twice to operate it, but the receiving and delivery of item A may be fully automated by electrical control using a computer, etc. .

〔Effect of the invention〕

As described above, in the present invention, a plurality of sets of article receiving/delivery branch lines are set at desired positions on the production line, and a plurality of sets of evacuation lead-in lines, which are smaller in number, are arranged to face them. , Articles congested on the production line can be delivered to the article evacuation carriage and evacuated to the evacuation lead-in line, and then returned to the production line again.

Therefore, the production line does not have to be large-scale and installed over a large area, making it possible to reduce the area of the line and preventing congestion of goods on the production line, so the movement of the entire line does not stop. , production efficiency will improve.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view showing an example of the overall configuration of a production line used in the specified invention; FIG. 2 is a front view showing an example of an article evacuation carrier used in the specified invention; FIG. 3 is a plan view, FIG. 4 is a right side view, and FIG. 5 is an enlarged front view, with movable branch horizontal lines omitted, showing the state of use when receiving or delivering articles. l...Production line, 2...Main rail, 3A, 3B
. 3C... Goods reception/delivery branch line, 4A, 4B... Evacuation lead-in line, 5... Goods evacuation transport trolley, 7... Main trolley, 8... Child trolley, 15... Branch horizontal line , 15A...
・Fixed branch horizontal line, 15B...Movable branch horizontal line, 16...
- Traction means, 24... Conveying means, 29a... Locking claw, A... Article, H... Transfer pallet.

Claims (3)

[Claims] (1) A self-propelled main rail installed on an evacuation lead-in line with a smaller number of sets facing the multiple sets of article receiving/delivery branch lines branched in parallel at desired positions on the main rail of the production line. Select one of the evacuation lead-in lines to select an article evacuation carrier formed of a dolly and a child dolly mounted on the upper surface of the parent dolly so that it can move freely in a direction perpendicular to the moving direction of the parent dolly. and selecting a desired one of the article receiving/delivery branch lines of the line and causing the child truck to self-propel in a direction perpendicular to the direction of movement on the parent truck. A method for evacuation and conveyance of articles in a production line, comprising a step of determining a line, and receiving and delivering articles between the article receiving/delivery branch line and the article evacuation transport vehicle. (2) Determining the delivery line or receiving line for the article by transporting the child truck in a direction perpendicular to the moving direction of the parent truck and selecting one of the article receiving/delivery branch lines of the line; 2. The production according to claim 1, characterized in that a movable branching horizontal line is rotatably pivoted to one side of the parent bogie with respect to a fixed branching horizontal line laid on the upper surface of the parent bogie in a direction orthogonal to the moving direction. A method for evacuation and conveyance of goods on a line. (3) Install multiple sets of goods receiving/delivery branch lines branched in parallel at desired positions on the main rail of the production line, and several sets of smaller numbers facing the goods receiving/delivery branch line. This is an article evacuation carrier that moves and retreats to receive and deliver articles between the evacuation line and the evacuation lead-in line. A movable branching lateral line is provided so that the lateral line can be extended, and a parent truck is provided on one of the desired evacuation lead-in lines so as to be freely movable, and a conveying means is provided on the upper surface of the parent truck, and the fixed branching lateral line and the movable branching lateral line are provided on the upper surface of the parent truck. A conveyance trolley for evacuation of goods, consisting of a child trolley mounted so as to be able to move freely on a horizontal branch line.