JPS6227232A - Conveyed material shifter - Google Patents

Abstract

PURPOSE:To receive conveyed materials with the use of receivers to provide advantage for stacking empty pallets, by projecting a stationary conveyer section onto which conveyed materials are introduced, together with a movable conveyer section, and by retracting the movable conveyer section after the stationary conveyer section is positioned above a receiver, thereby the conveyed materials are received in the receiver. CONSTITUTION:When conveyed materials 3 are slid to be introduced onto a stationary conveyer section 30 and a movable conveyer section 31 of a gravity conveyer device 6, receivers 38 for conveyed materials are retracted laterally outward since the movable conveyer section 31 is retracted. The movable conveyer section 31 is projection so that the both sides of the materials 3 are positioned above the receivers 38, and is then stopped. When the movable conveyer section 31 is retracted, the materials 3 are received by the receivers 38, and the receivers 38 are moved back. Therefore, the materials 3 are dropped onto a receiving bed 8 which has been raised. With this arrangement the materials are surely delivered, and it is possible to make the entire device compact and reduce the cost of the device and as well to provide advantage for stacking empty pallets.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an object transfer device used for transferring objects, such as a loaded pallet or an empty pallet, from a gravity conveyor device to a receiving pot. This is related to the loading device.

Conventional technology Conventionally, this type of conveyor transfer device has been used to transfer the conveyed article that has been sliding on the gravity conveyor device onto a receiving table using the sliding force, or to transfer the conveyed article that has been sliding on the gravity conveyor device onto a receiving table, or to transfer the conveyed article to the terminal end of the gravity conveyor device. This method uses a crane-type transfer device to transfer the transferred items onto a receiving platform.

Problems to be Solved by the Invention Among the conventional examples described above, in the sliding type, if the inclination angle of the gravity conveyor device is small, it cannot be transferred smoothly and reliably onto the pedestal, and if the inclination angle is large, it cannot be transferred onto the pedestal. The upper impact acts as a dog and disturbs the position and direction of the conveyed object relative to the cradle. In particular, when empty pallets are stacked with the cradle movable up and down, the posture of the stacked pallets is disturbed, resulting in a lack of stability, which makes subsequent handling difficult.

Furthermore, when a transfer machine is used, the entire system becomes larger and more expensive.

Means for Solving the Problems In order to solve the above problems, the conveyed object transfer device of the present invention consists of a fixed conveyor section and a movable conveyor section that can freely move in and out diagonally downward with respect to the fixed conveyor section. A gravity conveyor device is provided, conveyed object receivers are provided on both sides of the protruding position of the movable conveyor section and can be moved in and out from the lateral direction, and furthermore, a receiving table that can be raised and lowered is provided below the protruding position.

According to the structure of the present invention, the conveyed object that has been slid into the fixed conveyor section is moved in a protruding manner together with the movable conveyor section, with both sides positioned above the protruding receiver. Stop.

The movable conveyor section can then be retracted to cause the conveyed articles to be deposited on each receptacle, and then the conveyed articles can be transferred onto the raised receptacles by retracting each receptacle.

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

In FIGS. 8 and 4, (1) is a hanging conveyance device.

An empty pallet (3), which is an example of an object to be transported, is supported and transported via the hanger (2). The hanging conveyance device (1)
A pedestal (4) is provided at a suitable location below the conveyance path, and an unloading device (5) is provided on this pedestal (4). A gravity conveyor device (6) is disposed on the side of the unloading device (5) in a direction perpendicular to the direction of the hanging conveyance path.

This is supported by the pedestal (4) and frame (7).

Opposite the terminal end of said gravity conveyor device (6).

A lift device (9) having a cradle (8) that can be raised and lowered is provided. A receiving conveyor device α that can be freely connected to a cradle (8) at the lower limit is arranged above the floor.

As shown in Figures 3 to 6, the unloading device (5) consists of a machine frame installed on a pedestal (4), and a link mechanism, a cylinder device, etc. on this machine frame (6). a support frame aS attached so as to be able to be raised and lowered via a pandagraph device (2);
An idling roller conveyor device (g) arranged on this support frame cIO and whose other end on the gravity conveyor device (6) side is connected to a horizontal bin α7) and can freely swing up and down with respect to the support frame aS. And, similar to the mounting tool α field, which is vertically installed from the lower surface of one end of this idling roller conveyor device (7) and maintains the horizontal state of the idling roller conveyor device (g) by coming into contact with the support frame qQ. A stopper body 4 hanging downward from the position, a stopper body provided on the machine frame (6) to receive the stopper body (1) from below, and the machine frame (6)
A pair of front and rear brackets (4 in total) are erected on each side of the left and right sides of the bracket (2), levers (goods) are attached to the upper ends of these brackets (goods) via front and rear bins so that they can swing from side to side, and these levers ■ A width correction roller (A) that is attached to the upper end and normally swings outward and downward due to its own weight;
A cam roller is attached to the lower end of the lever and normally swings inward and upward, and is attached to both sides of the support frame σQ.

This support frame is composed of a cam plate that acts on the cam roller from the inside near the lower limit of IQ.

As shown in FIGS. 1 and 2, the gravity conveyor device (6) includes a pair of left and right fixed roller conveyors (7) attached to the pedestal (4), and these fixed roller conveyors (
7) A movable roller conveyor 0υ arranged between.

Rail sections (
1) A guide device having rollers □□□ for supporting and guiding the
The guide device (2) is attached to the fixed roller conveyor (7) or the pedestal (4), and moves the movable roller conveyor 0υ diagonally downward along the inclination of the fixed roller conveyor (7). The movement of the movable roller conveyor Oυ to and from work is performed by a cylinder device (to) provided between it and the fixed roller conveyor (7). A middle guide roller (7) is installed on the outside of both fixed roller conveyors (7).
) is installed. A pair of left and right holding frames (9) are attached across the fixed roller conveyor (7) and the frame (7), and a conveyed object receiving device (7) that can move in and out of these holding frames from the lateral direction. are provided in pairs at the front and rear.

In other words, each object receiving device (to) has a lever attached to the holding frame (g) through a vertical pin (g) so as to be swingable, and a receiver ζ roller 0 attached to the tip of these levers (a). Consists of 〃. There is a link (6) at the bottom end of the vertical pin.
are fixed, and the free ends of the front and rear opposing links are connected by a long link curvature. Single fixed roller conveyor (7
) The middle part of the swing lever 4 is attached to the other side surface of the swing lever 4 via a vertical pin (2), and a connecting link 00 is interposed between the outer part of the swing lever 4 and the link (c). .

Furthermore, the outer end of the swinging lever ■ and the fixed roller conveyor (1)
A tension spring is interposed between the tension spring 0 and the tension spring 0.
7) is an example of a biasing tool that biases the receiving roller (6) to protrude. A cam roller (G) is attached to the inner end of the swing lever (-4), and a cam surface that acts on the cam roller (7) to swing the swing lever (G) against a tension spring (B). (6) are formed on both sides of the lower end of the movable roller conveyor 6υ.The frame (7) is provided with a detection device (■) and a stopper, and the other end of the fixed roller conveyor (7) is provided with a detection device (7) and a stopper. , a guide te to guide the dropped pallet (3)
s and a group of exit/exit stoppers for catching the next pallet (3). This egress/retreat stopper protrudes upward when the movable roller conveyor 3]) protrudes, and its operation is performed in conjunction with the movement of the movable roller conveyor (b) or by a solenoid or the like. Further, a rise regulating plate (goods) is attached to the holding frame (b), which allows the upper surface of the pedestal (8) to freely come into contact with it.

As shown in FIGS. 3 and 4, the lift device (9) for raising and lowering the pedestal (8) consists of an erected column, the weight of a drive wheel disposed at the upper end of this column, and a It consists of a drive device that is linked to the weight of the wheel, a chain link wound around the drive wheel body (6υ), and an elevating member (2) that is guided to the support column side so as to be able to rise and fall and is connected to a chain binding. The machine frame Vl on the side of the pedestal (8) is integrated with the elevating member.

As shown in FIGS. 7 and 8, the cradle (8) supports an idling type roller conveyor device (3) on the machine frame 4 from left to right.
Seal. A pair of left and right guide rails are disposed on the machine frame 4 between both roller conveyor devices (711), and a movable body (741) is provided on these guide rails to be supported and guided via a plurality of wheel openings. One end of this movable body is provided with an anti-back type pusher 96 whose pushing surface faces toward the other end, and the other end of the movable body is provided with an engaged portion holder in the vertical direction. The guide rail is provided with an engagement piece that can be freely engaged and detached from the movable body C141 in the retracting eye, and a spring 4 that biases this engagement piece ff11 in the engagement direction.Floor surface αQ On the side, there is a holder that receives the lower surface of the machine frame 4 and restricts the lowering limit of the cradle (8), and an operating tool that moves the engagement piece to disengage against the spring 4 at this lowering limit. A receiving conveyor system fHG1) in the form of an idling roller, which can be freely connected to the roller conveyor system, is provided so as to be located outside the other end of the pedestal (8) at the lower limit. . A pair of receiving conveyor devices are provided on the left and right sides of the machine frame.

A pair of left and right guide rails are provided on the machine frame between the two receiving conveyor devices a1.

The movable platform 2, which is supported and guided by a plurality of wheels on these guide rails, has an engaging part 2 in which the engaged part holder can be freely engaged and detached from the vertical direction, and an anti-back type pusher state. is provided. Furthermore, a cylinder device 4, which is an example of a reciprocating drive device that is linked to the movable dowel, is provided on the machine frame. The receiving conveyor device α is long enough to support two stacked bond pallets, and a fork insertion space aU is formed in the rear half thereof.

The operation of the above embodiment will be explained below. Hanging transport device (
In 1), a hanger (
2) is stopped above the unloading device (5). In this state, operate the pantograph @4 and raise the support rod oQ. Then, the idle roller conveyor device μs in the horizontal state lifts the pallet (3) and places it on the hanger (2) as shown in the third prisoner.
), and the hanger (2) is conveyed to the next process and is in the state shown by the solid line in FIGS. 5 and 6. Next, the support frame aQ is lowered by the pantograph mechanism 4. Then, near the lowering limit, the cam plate (5) moves to the cam roller (toward the lower limit).
The lever (to) is erected and swung around the front and rear bins Q, and the width correction rollers (7) divided into right and left sides are erected and swung so as to approach each other, as shown in the imaginary line in FIG. Then, the position in the width direction is corrected by holding the pallet (3) from both sides by the rain correction rollers (to). Further, near the lowering limit, the stopper body (4) contacts the stopper body from above, and as a result, the idle roller conveyor device (g) and the support frame of5 relative swing around the horizontal bin αη. As shown in the imaginary line in FIG. 5, the free rotating roller conveyor device (7) is inclined so as to be located on the extension line of the fixed roller conveyor (7). Therefore palette (2)
slides from the idle roller conveyor system quadruple onto the fixed roller conveyor (7).

In the gravity conveyor device (6), the movable roller conveyor C31) has moved back and forth as shown in the imaginary line in Fig. 2, and therefore the pallet (3) that has slid while being guided by the width correction rollers (7) is Guided by the width guide roller (7), it moves onto the double roller conveyor (7) θυ,
Then, it is received by the exit/exit stopper.

Also, when the movable roller conveyor 0υ moves back and forth, the cam surface OI acts on the cam roller (T), and the tension spring 07)
The swing lever 4 is swung against this movement, and each of the conveyed object receivers (to) is moved laterally outward and retracted as shown by the imaginary lines in FIG. In this state, the moving/retracting stopper ω is moved in and out, and the movable roller conveyor 6]) is moved in a protruding manner. Then, the cam roller decoy is released from the restraint of the cam surface (), and the spring force of the tension spring GI7) causes each conveyed object receiving device (to) to move laterally inward as shown by the solid line in FIG. The pallet (3) that protrudes together with the movable roller conveyor is detected by a detection device button and is received by a stopper (9).

At this time, the lower surfaces of both sides of the pallet (3) are located above each receiving roller (goods), and the receiving stand (8) is raised until it comes into contact with the rise regulating plate (goods). In this state, when the movable roller conveyor C3) is moved in and out, the pallet (3
) is left in the protruding position, and the movable roller conveyor OX
) is released, the receiving roller Gl
'D. When the movable roller conveyor CIυ reaches near the retraction limit after the pallet (3) has been completely passed between each receiving roller (6), the cam roller (
The cam plane acts on the conveyance object receiver (7) to swing the swing lever 4 as described above, thereby retracting each of the conveyed object receivers (7) laterally outward. As a result, the pallet (3) whose supports are simultaneously released at a plurality of locations falls and is received between the roller conveyor devices without disturbing its posture. Then, the gravity conveyor device (6) waits to receive the next pallet (3), and the receiving platform (8) is lowered by the thickness of one pallet by the operation of the lift device (9). By repeating this kind of work.

The pallets (3) are sequentially stacked on the pedestal (8).

Furthermore, the pallet (3) is transported by a movable roller conveyor (b).
During handling, when the next pallet (3) is passed to the fixed roller conveyor (7), this pallet (3)
will be caught at the entrance/exit stopper.

A predetermined number of pallets (3) are placed on the roller conveyor device (2).
) are stacked up, the pedestal (8) is lowered by the operation of the lift device (9). At this time, the movable body σ is retracted, and the engaging piece σ is engaged to maintain the retracted position. Moreover, the movable base is in the most advanced position. Immediately before the descending machine frame 1 is received by the receiver (a), it comes into contact with the engaging piece (711 is the operating tool 81) and moves away, and the engaged part The mating portions are engaged from above, resulting in the state shown in FIGS. 7 and 8.

Further, at the lower limit, both guide rails f1641 are connected. Next, when the cylinder device j7.4% is retracted, the backward movement of the movable base is transmitted to the movable body V→ via the engaging portion and the engaged portion, and the movable body ff4 is integrally moved. At that time, the movable body moves from the guide rail 4 to the guide rail (goods). A pusher that moves together with this movable body (70 is a stacked pallet...
The stacked pallets are brought into contact with the stacked pallets in a pushing state and transferred from between the roller conveyor devices to the receiving conveyor device. The movable body (moves until it is completely transferred to the guide rail), and is then returned to the pedestal (8) side by the operation of the cylinder device.Then, the empty pedestal (8) is raised again. In addition, the stacked pallets received at the starting end of the receiving conveyor device σM...
It will be transported via the pusher during the next receiving operation.

Then, using the fork insertion space 5311, it is transported by a lift truck or the like.

In the above embodiment, an empty pallet (3) is shown as an object to be transported, and the equipment for stacking the empty pallet is shown, but this may also be an actual pallet with articles placed thereon. It may be the case. At this time, the pedestals (8) are not stacked and are handled one by one.

Effects of the Invention According to the conveyed object transfer device of the present invention having the above-mentioned configuration, the conveyed object that has been slid into the fixed conveyor section is moved in a protruding manner together with the movable conveyor section, thereby transferring the conveyed object to the receiving device that has been moved in a protruding manner. Both sides can be positioned above the. By retracting the movable conveyor section in this state, the conveyed object can be received on each receiving platform, and then by simultaneously retracting each receiving device, the conveyed object can be placed on the elevated receiving platform. , it can be passed correctly without disturbing the position or orientation. As described above, according to the present invention, it is possible to make the entire device compact and inexpensive while still ensuring reliable delivery, and it can be particularly advantageously employed for emptying empty pallets.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the gravity conveyor device section, Fig. 2 is an open plan view, Fig. 3 is a side view of the entire equipment, and Fig. 4 is a plan view thereof. FIG. 5 is a partially cutaway side view of the unloading device section, FIG. 6 is a front view thereof, FIG. 7 is a side view of the pedestal section, and FIG. 8 is a plan view thereof. (1)...Hanging conveyance device, (3)...Pallet,
(5)... Unloading device, (6)... Gravity conveyor device, (8)... Receiving stand.

Claims (1)

[Claims] 1. A gravity conveyor device consisting of a fixed conveyor section and a movable conveyor section that can freely move in and out diagonally downward with respect to the fixed conveyor section is provided, and a gravity conveyor section that can move in and out from the lateral direction is provided on both sides of the protruding position of the movable conveyor section. A conveyed object transfer device characterized by being provided with a conveyed object receiving tool and further provided with a receptacle that can be raised and lowered below a protruding position.