JPS6320258A - Carrying facility with shifter - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a transport facility having a transfer device, which is employed, for example, at an automobile manufacturing plant to transport automobiles with built-in wheels.

2. Description of the Related Art Conventionally, this type of conveyance equipment has been developed, for example, in Japanese Patent Application Laid-open No.
As seen in Japanese Patent No. 82476, there is a trolley device that has a hanger device and is supported and guided by trolley guide rails and is movable on a fixed path, and a carry-in side drive U [installation] that moves the trolley device. , an output side drive device, and a shuttle conveyor that intermittently conveys trolley devices on a trolley guide rail at predetermined pitches between both drive devices. According to this traditional form,
The work consists of continuously transporting the trolley device, in which the object to be transported is supported by the hanger device, by the carry-in drive device.Then, the trolley device is intermittently transported at a predetermined pitch by the shuttle conveyor, and during the intermittent stops, another The work is carried out, and then another work is carried out while being continuously conveyed by the unloading drive device.

Problems to be Solved by the Invention According to the above-mentioned conventional system, conveyance by the delivery side drive device, shuttle conveyor, and delivery side drive device is performed at long pitches in consideration of the length of the trolley device. Therefore, when the conveyed objects are unloaded from the suspended conveyance device and passed to the floor conveyor at the downstream side of the unloading drive device, the conveyed objects on the floor conveyor are placed at the same long pitch, and the trolley device is not involved here. As a result, a large space is created between the objects to be transported, resulting in an inefficient transport mode. It is also possible to change the conveyance speed of the floor conveyor to a low speed so that the conveyed objects are spaced at short intervals, but in this case, the work efficiency on the floor conveyor side will be reduced.

The object of the present invention is to provide a transfer device that can transfer objects from suspended conveyance to floor conveyance, both conveying at a constant speed, and achieving a preferable conveyance pitch. The main point is to provide transportation equipment that has the following features.

Means for Solving the Problems In order to solve the above-mentioned problems, a conveyance facility including a transfer device of the present invention is provided with a shuttle conveyor that intermittently conveys a trolley device having a hanger device at predetermined long pitches. Below the shuttle conveyor, a pair of left and right slat conveyors having conveyed object positioning shells are arranged at short pitch intervals smaller than the long pitch, and a transfer device that receives conveyed objects from a hanger device and transfers them to the slat conveyor. A device is provided, and this transfer device is provided with a movable part that can freely move back and forth in the direction of the conveyor, a lowering part that is provided on this movable part and that can be freely moved between both slat conveyors, and a lowering part that is installed on this carp lowering part. A reciprocating drive device interlocked with the movable part, and a first stage transport speed higher than that of the slat conveyor, and a reciprocating drive device interlocked with the movable part. the second equivalent to
The stage conveyance speed is set.

According to the configuration of the present invention, the trolley device in which the conveyed object is supported by the hanger device is intermittently trained at predetermined long pitch intervals by the shuttle conveyor, and the desired work is performed during that time. While this trolley device is stopped at the end of the slat conveyor, the lifting section of the transfer device pushes upward to lift the object through the object receiving device, and the hanger device is opened. Ru. Next, the movable part moves forward at the first stage conveyance speed, which is faster than the slat conveyor, so that the current conveyed object catches up with the forward conveyed object that was unloaded in the previous process and is being conveyed by the slat conveyor. approach the shape. The movable part is moved forward at the second stage transport speed equivalent to that of the slat conveyor, and during this time the culm descending part descends to its lowering limit, so that the object to be transported this time can be stably passed onto the slat conveyor.

Example An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 indicates a trolley guide rail (troll guide device) which is disposed over the entire length of the line and supports and guides a trolley device 11 having a hanger device 10, and 2 indicates a trolley guide rail. 1 is a shuttle conveyor disposed along a predetermined location; 3 is a carry-in side trolley drive device that forms a carry-in side suspended conveyance device 4 up to near the starting end of shuttle conveyor 2; An unloading side trolley drive device forming a side lowering conveyance device 6, 7
8 is a pair of left and right slat conveyors whose starting ends are below the terminal end of the shuttle conveyor 2, and 8 is a vehicle (an example of a conveyed object) from the hanger device 10 that has reached the terminal end of the shuttle conveyor 2.
This is a transfer device that receives 12 and delivers it to the slat conveyor 7. The shuttle conveyor 2 is provided with a predetermined long pitch (P
A plurality of movable side clamp devices 13 (four in the embodiment) are provided every 1), and the long pitch (Pl) described above is made equal to the reciprocating distance of the shuttle conveyor 2. The three locations where the two movable side clamp devices 13 stop facing each other alternately become stop working positions (A), (B), and (C), and these stop work positions [
The fixed side clamp device 14 is installed facing 1ff (A>(B)(C).The location where the carry-in side trolley drive device 3 separates from the trolley guide rail 1, that is, the carry-in side hanging conveyance The receiving position 1ff (D) of the shuttle conveyor 2 is near the terminal end of the device 4, and the location where the unloading trolley drive unit M5 joins the locating guide rail 1, that is, near the starting end of the unloading hanging conveyance device 6. is the transfer position (E) to the transfer device 8. Note that both trolley drive devices 3 and 5
and the slat conveyor 2 are driven at a constant speed, and the conveyance pitch by the dual-purpose lowering conveyance devices 4 and 6 is the long pitch (Pl
) will be equal to Further, the conveyance pitch on the slat conveyor 7 is a short pitch (P2) smaller than the long pitch (Pl), that is, (Pl)>(P2). 1
Reference numeral 5 indicates a hanger steadying rail, and 16 indicates a hanger hearing rail.

FIGS. 7 and 8 show parts of the dual-purpose lowering and conveying devices 4 and 6. FIG. That is, the hanging conveyance devices 4 and 6 include the trolley guide rail 1, the drive device rail 20 installed above the trolley guide rail 1, the trolley g411 supported and guided by the trolley guide rail 1, and the trolley g411 supported and guided by the trolley guide rail 1. It is composed of a hanger device 10 attached to the device 11 side, the trolley device 3, 5 (such as a chain conveyor) guided by the drive device rail 20, etc. The trolley device 11
is a front trolley 21 and a pair of front and rear free trolleys 2.
2.23, Ryato 1-] It consists of a suspension 24, connecting rods 25, 26 that connect the front and rear facing trolleys, and front and rear inner rods 27.

The front trolley 21 has a passive protrusion 29 that can be freely engaged with and disengaged from the drive protrusion 28 from the drive devices 3 and 5 so as to be able to move up and down. The hanger device 10 is attached to the front and rear inner rods 27 via a horizontal maintenance I81 structure 30, and has a cam roller 31 for posture regulation. The front and rear inner rods 2
On the 7 side, a first clamped part 32 is provided on the negative side of the front part, and a second clamped part 33 is provided on the other side of the front part.

The hanger device 10 includes a pair of left and right brackets 37 that are vertically swingably attached to the frame 35 of the horizontal maintenance mechanism 30 via longitudinal pins 36 on both sides thereof, and free ends of these brackets 1 to 37. An upper arm 38 in the front-rear direction attached to the upper arm 38, a vertical arm 39 hanging from the front end of the upper arm 38, a lower arm 40 connected rearward from the lower end of the vertical arm 39, and a lower arm 38 connected to the lower arm 40. Installation C
It consists of a receiving shell 41 that can freely support the car body 17 of the pulley wheel 12 from below, and a cam roller 43 for opening and closing the hanger, which is attached to the tip of an arm rod 42 that is connected outwardly from the upper arm 38. be done.

Next, details of the shuttle conveyor 2 will be explained based on FIGS. 9 to 15. The trolley guide rail 1 is attached to the frame body 50 in the part where the shuttle conveyor 2 is arranged,
Further, the hanger resting rail 15 for guiding the cam roller 31 is attached to the frame 50. The shuttle conveyor 2 has a running rod 51 that can freely move back and forth along the trolley guide rail 1, and this running rod 51 is connected to a pair of left and right guide rails 52 attached to the frame body 50 side with support rollers 53. [11] Supported and guided via regulation roller 54.

A rack 55 is attached to the upper surface of the running rod 51, and a pinion 56 that engages with the rack 55 is connected to a motor 57 attached to the frame 50! lI? It is attached to the output shaft 58. The motor 57 can be driven in one reverse direction, and by driving the motor 57, the running rod 51 can be driven at the long pitch (Pl) as described above.
Move back and forth equally. 1 movable side clamp device 1
3G, it is attached to the lower surface of the traveling rod 51 so as to correspond to the first clamped portion 32.

That is, a pair of left and right support plates 60 are attached to the lower surface of the running rod 51, and guide rails 61 are attached to the opposing surfaces of these supports 41ii60, respectively. These guide rails 61 guide a slide body 62, and this slide body 62 reciprocates by the operation of a cylinder device 63 provided between it and the traveling body 51. A hand clamp piece 66 is attached to the middle lower surface of the slide body 62 via a bracket 64 and a pin 65 so as to be able to swing back and forth. It is set between the upper position and the upper position. A lower clamp piece 68 is attached to the lower part of the support plate 60 via a pin 67 so as to be able to swing back and forth. The lower clamp piece 68 is pivotally supported at its intermediate portion, and the lower portion, which normally performs the clamping action, is biased to pivot by a spring or the like so as to be at the lower upper position.

As a result, a cam roller 69 is attached to the upper part of the lower clamp piece 68 located on the upper side, and a cam 70 facing the cam roller 69 is attached to the slide body 62. The fixed side clamping device 14 corresponding to the second clamped portion 33 includes a pair of left and right support plates 77 integral with the frame body 50 side,
A movable body 72 formed on the support plate 77 is guided through rollers 71, a cylinder device 73 for raising and lowering the movable body 72, and a pin 74 on the support plate 77.
A pair of front and rear clamp arms 75 are attached so as to be able to swing back and forth through
and a link 76 that connects the two in a relatively swingable manner.

Next move i11! The details of the device 8 will be explained based on FIGS. 3 to 6. A large number of support rollers 81 are arranged in two rows on the left and right on a base frame 80 on the floor, and a movable part 83 is placed on these support rollers 81 via a pair of left and right placement plates 82 . A lateral regulating roller 84 that guides the side surface of the mounting plate 82 and a lifting prevention roller 85 that guides the upper surface of the mounting plate 82 are attached to the base frame 80. As a result, the movable part 83 can freely reciprocate in the direction of the conveyor, and the reciprocating movement is performed by moving the movable parts 86 and 87 arranged separately at both ends of the base frame 80 and the roller chain 88 suspended between these parts 86 and 87. A guide rail 89 attached to the base frame 80 to guide the roller chain 88, a motor 91 interlocked with one embargo 86 via a brake 90, and a suitable position of the roller chain 88 interlocked with the movable part 83. This is made possible by providing a connecting member 92. At this time, the conveyance speed by the motor 91 is set to a first speed that moves the movable part 83 in the direction of the slat conveyor faster than the slat conveyor 7.
It is configured to control the stage conveyance speed (Vl) and the second stage conveyance speed (2) to move the slat conveyor 7 in the same manner as the slat conveyor 7. Both slat conveyors 7 are mounted on the movable part 83.
A stirring unit 93 that can be moved up and down between the two is disposed via an up-and-down drive device 94. As this carp lowering drive device @94, for example, a pantograph mechanism consisting of a link 95 and a cylinder device 96 is used. To measure time in the lowering part 93, guide rollers 97 are arranged vertically on the movable part 83, and a guided object 98 guided by these guide rollers 97 is measured by the lowering part 93.
It is carried out on a fixed path by vertically installing it from the bottom surface of 3. A leg bar 99 is hung from the lower surface of the front and rear ends of the lower part 93, and a stopper pin 101 whose protrusion amount can be adjusted via an adjustment device 100 is provided on the leg bar 99. A stopper receiver 102 facing the stopper pin 101 is provided on the base frame 80, and a leg bar receiver 103 that can move in and out in the lateral direction is provided in the middle. This leg support 103 is guided by a rail 105 attached to a frame 104 integrated with the base frame 80 via an O-ru 106, etc., and its movement is controlled by a cylinder device 107 provided between both 103 and 104. This is done by At that time, rail 105
are slightly inclined so that the inner side is upward, so that the leg bar receiver 103 can be projected in the lateral direction slightly upward. A plurality of receivers 108 for supporting the lower surface side of the vehicle body 17 are mounted on the lowering portion 93, and one of the receivers 108 on the rear side can be freely raised or lowered via an actuating device 109.

The left and right sides of the slat conveyor 7 are driven synchronously, and the slat conveyor 7 has a chino 111 supported and guided by a guide rail 110.
It consists of a slat plate 112 attached to this chino 111, and the like. The slat conveyor 7 is provided with positioning shells 113 for the cars 12 at every short pitch (P2) smaller than the long pitch (Pl). This positioning tool 113 is a pair of front and rear block frames 114^ attached to the upper surface of the slat plate 112.

A large number of sets of wheels 114B are provided, and among the wheels 18, for example, the rear wheels are the front and rear block frames 114^, 1148.
The position is determined by fitting between the two. Note that the upper portions of the block frames 114A and 114B are trumpet-shaped inclined surfaces 1.
14a.

114b.

The operation of the above embodiment will be explained below.

The trolley device 11, which supports the car 12 by the hanger device 10, is transported in the carry-in side hanging conveyance device 4 by the engagement of the driven projection 29 with the drive projection 28, as shown in FIG. Then, as shown in FIG. 1, at the receiving position @ (D), the carry-in side trolley drive gear 3 escapes to the side, so the drive protrusion 28 comes off from the passive protrusion 29, and the trolley device 11 is driven with one stroke. is cut off and stops. At this time, the first clamped portion 32 of the trolley device 11 is located at the receiving position (D) of the shuttle conveyor 2. In addition, in the shuttle conveyor 2, the running rod 51 moves upward (backward) with each movable side clamping device 13 in an unclamped state, so that the first clamped portion 32
From the solid line in FIG. 11 to the receiving position (I) shown by the imaginary line (A), the two-handed clamp piece 66 is swung slowly as shown by the imaginary line (B).
, 68. In addition, each stopped work position 1f
(A) (B) (C) (In some cases, acceptance position (D)
), the first clamped part 32 has already reached the clamped part 32, and in this case, the upper clamping piece 66 that moves backward swings and crosses over the clamped part 32. Next, the cylinder device A position 63 is operated to move the slide body 62 downward. Then, the upper clamp piece 66 moves together, and the cam 70 acts on the cam roller 69, causing the lower clamp piece 68 to swing smoothly, so that the first
The clamped portion 32 is held between both clamp pieces 66 and 68. This clamping movement is performed at each stopped working position [(A
>(F3> (C) <1)). Next, the running rod 51 is moved downward (forward movement) by a certain long pitch (Pl), thereby transporting each trolley device 11 to the next position. During transportation, the stationary side clamp device 14 moves the clamp arm 75 as shown in the imaginary line in FIG.
is in the unclamped position. After being transported, the movable body 72 is moved upward by the operation of the cylinder device 73. As a result, both clamp arms 75 close via the link 76, and the fourteenth clamp arm 75 closes.
As shown by solid lines in the figure, the trolley device 11 is positioned at each work position (Δ)<8>(C) by holding the second clamped portion 33. After this, each stop work position (A>(11)
In (C), various works are performed on the car 12.

During the work, the movable clamping device 13 is in a non-clamping state and is moved back together with the traveling rod 51. After the trolley device 11 reaches the 1-transfer position (E) shown in FIG. 1 through the forward movement described above, the car 12 is unloaded from the hanger M10. That is, before the car 12 reaches the transfer position 11' (E), the movable part 83 has moved downward and is at the transfer position ("), and the stomach descending part 93 has been lowered. From this state,
First, the lowering part 93 is raised 4 by the operation of the lifting drive device 94,
As shown by the solid line in FIG. 3, the receiving shell 108 is brought into contact with the bottom surface of the vehicle body 17 to lift the vehicle 12 from the hanger device 10.

Next, the hanger opening device is actuated on the cam roller 43 to open the hanger device 10 outward on both sides as shown by the imaginary lines in FIG. Then, the elevating drive device 94 is operated in reverse to lower the lowering part 93, but this lowering is performed stably because the guided body 98 is guided by the guide rollers 97. Also, at this time, the leg rod receiver 103 is protruding, and therefore the descent of the culm descending part 93 is as shown in Fig. 6, imaginary 1.
As shown in (c), the leg bar 99 is stopped at an intermediate position where it is in contact with the leg bar receiver 103. Before and after this, the movable part 83 is moved at the speed of the slat conveyor 7 by the operation of the motor 91.
The car 12 is engaged in sexual activity at the first stage speed (V2), which is faster than the car 12 (Vl), which causes the current car 12 to catch up with the car 12 in front, which was unloaded in the previous operation and is being transported by the slat conveyor 7. bring them closer. Subsequently, the movable part 83 is operated at the second stage conveyance speed (vl) equivalent to that of the slat conveyor 7. While the movable part 83 and the slat conveyor 7 are moving at a constant speed (Vl) of 111J in this way, the leg bar support C 102 moves in and out to release the support of the leg bar 99. Then, the ejection portion 93 is lowered. By this lowering, the middle 12 wheels 1B are placed on the upper surface of the slat plate 112, so that the car 12 can be stably transferred to the slab mill conveyor 7 as shown by the imaginary line in FIG. When the wheel 18
One side of the block frame 114A is guided by the inclined surfaces 114a and 114h.

114B, and thus the car 12 is delivered to the slab i/conveyor t 7 at a short pitch (P2) and positioned by the positioning shell 113.

Note that the lowering limit of the lowering portion 93 is such that the stopper pin 101 is connected to the stopper receiver 10, as shown by the imaginary line (D) in FIG.
2, and in this state it is sent on its way.

In addition, when the hanger device 10 is empty and the trolley V device 11 (the drive protrusion 28 of the carry-out side trolley drive device 5 enters from the side and engages with the passive protrusion 29, the hanger device 10 becomes empty. 6, it is carried out to the next process.

Effects of the Invention According to the present invention having the above-described configuration, the conveyed object on the hanger device can be unloaded by the transfer VC device while the trolley device is stopped at the terminal end of the slat conveyor.

Then, by moving the movable part forward at the first stage conveyance speed, which is faster than the slat conveyor, the current conveyed object is It is possible to shorten the pitch and pitch by approaching the target in a catching-up manner. Then, the movable part is moved forward at the second stage conveyance speed equivalent to the slat conveyor,
By lowering the undercarriage part during this time, the object to be conveyed this time can be stably passed onto the slat conveyor. In this way, according to the present invention, in a format in which the conveyed object is transferred from folded conveyance to floor conveyance, both conveyances are conveyed at a constant speed, but each of these conveyances can be set to a preferable conveyance pitch, thereby improving efficiency. This enables good conveyance and efficient work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic plan view;
Fig. 2 is a schematic side view, Fig. 3 is a side view of the transfer device, Fig. 4 is a plan view, Fig. 5 is a longitudinal sectional front view, Fig. 6 is an enlarged side view, and Fig. 7 is a side view of the transfer device. FIG. 8 is a front view of the hanging conveyor section, FIG. 9 is a plan view of the shuttle conveyor section, FIG. 10 is a side view of the same, FIG. 11 is a side view of the movable clamp device section, and FIG. 12 is a sectional view taken along the line xx in FIG. 10, FIG. 13 is an enlarged side view of the same, FIG. 14 is a side view of the stationary side clamp device, and FIG. 15 is a front view of the same. 1...Trolley guide rail (trolley guide device), 2...
... Shuttle conveyor, 4... Carrying-in side hanging conveyance device, 6... Outgoing side m-hanging conveying device, 7... Slat conveyor, 8... Transfer device, 10... Hanger device, 1
1...Trolley device, 12...Car (transferred object), 13
... Movable side clamping device, 14... Fixed side clamping device, 32... First clamped part, 33... Second clamped part, 66... Upper clamp piece, 6゛8...・
Lower clamp piece, 83... Movable part, 91... Motor (reciprocating drive device), 93... Lowering part, 94... Stomach lowering drive device, 108... Receiver, 112... Slat board, 113...Information deciding tool, 114^, 114B.
... Block frame, -2〇 -

Claims (1)

[Claims] 1. A shuttle conveyor is provided that intermittently transports a trolley device having a hanger device at predetermined long pitch intervals, and below this shuttle conveyor, a pair of left and right conveyor belts are provided with conveyed object positioning tools at short pitch intervals smaller than the long pitch. A slat conveyor is provided, and a transfer device is provided that receives the objects to be conveyed from the hanger device and transfers them to the slat conveyor. It consists of an elevating part that is provided and can be raised and lowered between both slat conveyors, a conveyed object receiving device provided on this elevating part, and a reciprocating drive device that is linked to the movable part, and the slat conveyor is moved by the reciprocating drive device. The conveyance speed in the direction of the conveyor is set to be faster than the slat conveyor.
A conveyance facility having a transfer device characterized in that the stage conveyance speed is set to a second stage conveyance speed equivalent to that of a slat conveyor.