JPS5943293Y2 - Load transfer equipment - Google Patents

Description

[Detailed explanation of the invention] For example, while picking a target object from a container carried out from a shelf, containers that have already been picked and unloaded in the F direction are stored on the shelf by a conveyor, and then the containers are picked and then picked. By taking out the containers to be stored, the pinking work and the work of loading and unloading the containers can be done simultaneously and in parallel, allowing the worker to perform the required work with great efficiency without getting tired.

Conventional load transfer equipment used for such operations is hydraulically or pneumatically operated, requiring a separate hydraulic or pneumatic source and resulting in complex structures of the equipment itself. , expensive and high running costs;
There were many breakdowns.

The present invention relates to an improvement of a load transfer device that eliminates such drawbacks, and includes a pair of left and right fixed support stands capable of supporting the lower portions of both sides of the article, and a pair of fixed support stands positioned 1° above the support stands on both sides of the article.
a pair of temporary support frames located outwardly from both sides of the fixed support base and pivotally supported to be openable and closable from side to side so as to engage and support the door portion, and the pair of left and right fixed supports; a pantograph type elevating mechanism that moves the article from the temporary support frame to the support stand by moving up and down between the platform and the temporary support frame; A crank mechanism connected to the movable part of the lifting mechanism and the temporary support frame are driven to open and close so that the top dead center is reached and the bottom dead center is reached at the lower limit position where the top of the lifting mechanism approaches the fixed support base. an opening/closing motor, an elevating motor that rotationally drives the crank mechanism, and after raising the elevating mechanism and transferring the article on the temporary support frame to the elevating mechanism;
The present invention is characterized by comprising a control means for interlocking the temporary support frame and the elevating mechanism so as to open the temporary support frame and then lower the elevating mechanism to transfer the article onto the fixed support base. The purpose is to provide a load transfer device that is simple in structure, reliable in operation, and inexpensive.

As described above, the present invention includes a pair of left and right fixed support stands that can support the lower sides of the article, and a fixed support that is located above the support stands to hold and support the lower sides of the article so that it can be detached. A pair of temporary support frames, which are located outwardly from both sides of the support stand and are pivotally supported to open and close the IC to the left and right, and the pair of left and right fixed support stands and temporary support frames are moved up and down (C up and down). Transferring the article from the temporary support frame to the support stand - Z-contagraph type lifting mechanism and the top of the lifting mechanism reach the dead center at the upper limit position close to the temporary support frame, and the top of the lifting mechanism approaches the temporary support frame. a crank mechanism connected to the sliding part of the elevating mechanism so that the bottom dead center is at a lower limit position close to the fixed support; an opening/closing motor that drives the temporary support frame to open and close; and an opening/closing motor that rotationally drives the crank mechanism. After raising the lifting motor and the lifting mechanism to transfer the article on the temporary support frame to the lifting mechanism, the temporary support frame is opened, and then the lifting mechanism is lowered to transfer the article onto the fixed support base. Since a control means for interlocking the temporary support frame and the elevating mechanism is provided so that the article is transferred to the temporary support frame, when the required work is completed at 1-1 for the article held and supported by the temporary support frame. The crank mechanism is driven by the lifting motor operated in response to a control signal from the control means to raise the pantograph type lifting mechanism, and the article supported by the temporary support frame is transferred to the lifting mechanism. After that, the temporary support frame is opened by the opening/closing motor operated in response to a control signal from the control means, and then the crank mechanism is driven once again by the lifting motor to lower the lifting mechanism. The articles engaged and supported by the temporary support frame can be transferred to the fixed support base.

In this manner, the article held and supported by the temporary support frame is transferred to the fixed support base, and a separate article is engaged and supported by the temporary support frame, and the article on the temporary support frame is moved to the fixed support base. While performing the necessary work, IC1 carries out the articles transferred to the support stand using a conveyor, and then prepares to transfer the articles to be processed next and carry them onto the temporary support frame. As a result, the required processing work for the article and the work of the dispenser of the article can be performed simultaneously and in parallel, and these operations can be carried out extremely efficiently and easily.

Furthermore, since the present invention is driven by a simple rotary drive means such as a motor that is not operated by hydraulic pressure or pneumatic pressure, no special fluid pressure source is required, and the structure is extremely simple and the cost is extremely low.

Further, in the present invention, the top dead center is at the upper limit state where the top of the elevating mechanism contacts the temporary support frame, and the bottom dead center is at the lower limit state where the top of the elevating mechanism approaches the fixed support frame. Since a crank mechanism is connected to the movable part of the pantograph type lifting mechanism, the article can be accelerated or decelerated at a substantially constant acceleration between the upper and lower limit positions of the top of the lifting mechanism, and at the same time the article can be accelerated or decelerated at a substantially constant acceleration. In the vicinity, the goods can be raised and lowered at high speed, so the impact when lifting and unloading the goods can be minimized, and the goods can be moved up and down in a short time to efficiently transfer the goods. Moreover, heavy articles can be raised and lowered using a relatively small lifting motor.

Furthermore, in this case, the goods are lifted and lowered by a lift motor, and the left and right pairs of temporary support frames are opened and closed by the opening/closing motors, so lifting and lowering the goods and opening and closing of the temporary support frames can be carried out separately and efficiently. The relocation can be completed within a short time, and the reliability of the opening/closing operation of the time support frame can be improved.

Moreover, in this case, the lifting mechanism is of the S-contagraph type, so it is possible to stably lift and lower objects over large distances in the past, when objects were supported horizontally, without any need for any other guide mechanism. can.

The present invention will be described below with reference to the illustrated embodiment. Reference numeral 1 denotes a cargo transfer device, and the cargo transfer device 1 is a part for opening containers 5 that have been delivered from a shelf 2 and supported by a loading platform 4 of a conveyor 3. It is the turn of the worker to temporarily support the picker next to No. 6 and allow the worker to carry out picking work.

Thus, the support stand 7 of the load transfer device 1 is integrally attached to both left and right sides of a frame 8 assembled in a tower shape.

The pair of temporary support frames 9 are connected to the frame 8 via pins 10.
The lower end of the support frame 9 is pin-coupled via a link 14 to both ends of a lever 13 of a shaft 12 rotatably mounted on a bearing 11. is connected to an opening/closing motor 17 via a belt 16 and a belt 16, and when the opening/closing motor 17 rotates, the temporary time frame 9 is driven to open/close in the left and right directions.

Further, an elevating mechanism 18 is disposed on the frame 8, sandwiched between a pair of supports 7, and the elevating mechanism 18 has a base 19 integrally fixed to the frame 8, The link 21 consists of the top 22, and the link 2
1 has a base 19. %- and pin 2 on top 22
3, and each other end of the link 21 is slidably attached to the base 19 button and the top 22 via a slide bearing 24.

Furthermore, the pulley 26 is attached to the lifting motor 25. A reduction gear 28 is connected via a belt 21, a lift L/bar 29 is fixed to the output shaft of the reduction gear 28, and a rod 31 is pivotally connected to the L/bar 29 via a pin 30. is rotatably attached to the pin 20, and when the lever 29 is rotated by the lifting motor 25, the pin 20 is raised and lowered up and down, and the -C1 lifting mechanism 18 is driven to extend and contract up and down. ing.

Next, the electric circuit of the control device 33 will be explained.
1 p CP 2 and CP 3 are a no-hub and a breaker installed in the AC power supply, respectively, and as shown in FIG.
The power supply circuits include an opening/closing motor forward/reverse magnetic contactor MgOMgCJ, and a lifting motor forward/reverse magnetic contactor M.
gU Each a contact of MgD MgOaMgCa MgUa
MgDa and thermal relays TH1TH2 are interposed in series.

A key switch PB is installed on the primary side of the transformer TR, and a full-wave rectifier SRF is connected to the secondary side of the transformer TR, so that a 24V DC current can be obtained by the full-wave rectifier SRF. ing.

Furthermore, as shown in FIG. 10, the relay X2 is operated by reflective photoelectric switches PS1PS2 arranged adjacent to the support stand 7 and the temporary support frame 9, respectively.

Furthermore, limit switches LS1LS2 for detecting the upper and lower limits of the lifting mechanism 18 are installed in the power circuits of the relays X3X4, and limit switches LS3LS4 for detecting the opening and closing of the temporary support frame 9 are respectively installed in the power circuits for the relays X5X6. are interposed in each.

Further, the B contact X1b of the first timer T and the A contact X2a of the second relay X2 are interposed in series, and the seventh relay X7
The power supply circuit includes a push button switch Po of the operation panel 32 arranged adjacent to the opening 1 part 6, and a first timer time limit a.
A contact T1a and a third relay b contact X3b are interposed in series, and a pushbutton switch Po and a first timer time limit a contact T
A self-holding a contact X7a of the seventh relay X7 is connected in parallel with la.

Furthermore, each power supply circuit of the lifting motor forward/reverse electromagnetic contactor MgUMgD and the opening/closing motor forward/reverse electromagnetic contactor MgOMgC includes various relays Xi, timers Ti, and electromagnetic contactors Mg, as shown in the lower part of FIG. A contact is provided.

Since the illustrated embodiment is configured as described above, the support frame 9 is temporarily opened, the switch LS3 is turned on, and the lifting mechanism 18 is not located at the lower limit.
If the device is stopped with switch LS2 turned off and the no-fuse breaker CP1CP2CP3 button and key switch fPB are closed, A, at that moment,
The timing contact T2b of the second timer T2 is turned on, and the contact T2bX5aX4bMgUb in the power supply circuit of the lifting motor reversing electromagnetic contactor MgD is turned on, the contactor MgD is operated, and the lifting mechanism 18 is lowered. When the lower limit is reached, the limit switch LS2 is turned on and the lifting mechanism 18 is stopped.

At the same time as this limit switch LS2 is turned on, the opening/closing motor reversing electromagnetic contactor MgC is operated to close the temporary support frame 9. When the temporary support frame 9 stands vertically, the limit switch LS4 is turned on and the temporary support frame 9 is stopped C0 The device is stopped with the twisted temporary support frame 9 closed vertically and the limit switch LS4 turned on, and with the lifting mechanism 18 not at the upper limit and the limit switch LS1 turned off. In case, no fuse breaker CP1CP
When 2CP3 and the key switch PB are closed, D, at that moment, the timing contact T2b of the second timer T2 is turned on, and the contact T2bX4b
gDb is turned on, the contactor MgU is operated, and the lifting mechanism 18 is raised. When the upper limit is reached E, the limit switch LS1 is turned on and the lifting mechanism 18 is stopped.

Simultaneously with turning on this limit switch LS1, the opening/closing motor forward rotation electromagnetic contactor MgO is operated to open the temporary support frame 9, and when the limit is reached, the limit switch LS3 is turned on and the temporary support frame 9 is stopped. .

Then, after the 5 seconds set time limit of the second timer T2 has elapsed, the contacts T2aX3aX5aX4bMgUb in the power supply circuit of the lifting motor reversing magnetic contactor MgD are turned on, and the lifting mechanism 18 is lowered in the same way as in the state A. At the same time, the temporary support frame 9 is stopped vertically.

In this way, no matter what state the temporary support frame 9 and the elevating mechanism 18 are in, when the power is turned on and a predetermined period of time elapses, the elevating mechanism 18 is located at the lower limit, and the temporary support frame 9 is closed upright. Preparations are made to carry the container 5 into the temporary support frame 9. In such a ready state G, when the container 5 is transferred from the conveyor 3 to the temporary support frame 9 as shown in FIG. Type photoelectric switch PS2 is activated and relay X2
is operated, contact X1 in the power supply circuit of the first timer T1
bX2a is turned on and the first timer T□ is operated.

After the set time limit of 1 second of the first timer T1 has elapsed, the time limit contact T1a in the power supply circuit of the seventh relay X7 is turned on, and a state H is entered in which the operator waits for the picking operation to be completed.

In such a picking work completion standby state H, when the operator completes the required picking from the container 5 and presses the push button switch Po, the seventh relay The contact T2aX7aX4aX1bX3bMgDb in the power supply circuit is turned on, the contact i5MgU is operated, and the lifting mechanism 18 is raised.

When the 18 lifting mechanisms reach the upper limit and support the container 5, J, +
) At the same time that the mitsuto switch LS1 was turned on and the lifting mechanism 18 was stopped, the opening/closing forward rotation electromagnetic contactor MgO was operated, and the support frame 9 was temporarily opened and reached its limit as shown in FIG. At this time, the stop switch LS3 is turned on and the temporary support frame 9 is stopped. At that time, the contact T2aX3a in the power circuit of the lifting motor reversing electromagnetic contactor MgD
X5aX4bMgUb is turned on, the lifting mechanism 18 is lowered, the container 5 is transferred onto the support stand 7, and the lifting mechanism 18 is stopped at the lower limit.

When the limit switch LS2 is turned on, the opening/closing motor reversing electromagnetic contactor MgC is operated, and the temporary support frame 9 is stopped vertically as shown in FIG.

At this moment, the reflective photoelectric switch PSl is activated. In the state M in which the containers 5 after the pinking operation have been transferred onto the support stand 1, the containers 5 taken out from the shelf 2 by the conveyor 3 are temporarily moved. After transferring to the support frame 9, the same container 5
While the necessary pinking work is being carried out, when the picked container 5 is carried out from the top of the support stand 7 by the transporter 3 and stored in the shelf 2, the first timer T is operated and the first timer T is operated.
After the time limit of 1 second set by the timer T□ has elapsed, the system enters the picking operation completion standby state H as described above.

By repeating such operations, while the transport machine 3 is performing storage/unloading operations, the picking operations can be sequentially reversed and efficiently carried out without waste.

In this way, in the embodiment, by simply pressing the pushbutton switch Po, the container 5 supported by the temporary support frame 9 can be moved to the support stand I.
can be automatically reprinted.

In addition, since the elevating mechanism 18 for the container 5 is constructed of a reversing mechanism, manufacturing and assembly are easy.

Furthermore, lift lever 29, pin 30. Since the crank mechanism consisting of the rod 31 is connected to the pin 20 of the lifting mechanism 18 so that the top dead center is near the upper limit of the lifting mechanism 18, the heavy container 5 can be temporarily supported by a small rotational torque. Since it can be easily raised and lowered above 9,
The container 5 can be raised and lowered at high speed using the lifting motor 25 with a relatively small output.

Furthermore, since the container 5 can be lifted from the temporary support frame 9 near the top dead center of the crank mechanism and transferred to the support stand 7 near the bottom dead center of the crank mechanism, the impact on the container 5 is extremely small. Even containers containing fragile items can be disposed of without damaging them.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of one embodiment of the cargo transfer device according to the present invention, Fig. 2 is a detailed perspective view thereof, and Fig. 3 is a front view of the temporary support frame with the container supported. Figure 4 is a side view of the container, Figure 5 is a front view of the container transferred to the lifting mechanism, Figure 6 is a side view of the container, Figure 7 is a front view of the container lowered onto a support stand, Figure 8 is its side view - Figure 9 is its power supply circuit diagram, Figure 10 is its control circuit diagram, and Figure 11 is its power supply circuit diagram.
The figure is a flowchart).

Claims (1)

[Scope of utility model registration request] a pair of left and right fixed support stands capable of supporting both lower sides of the article;
1, which is located above the support base and is pivotally supported to be able to open and close from side to side, and is located outwardly from both sides of the fixed support base so as to be able to engage and support the lower parts of both sides of the article and to release the product; a pair of temporary support frames, a pantograph type elevating mechanism that moves up and down between the pair of left and right fixed support frames and the temporary support frame to transfer the article from the temporary support frame to the support stand; Connected to the movable part of the elevating mechanism such that the top of the mechanism reaches the top dead center at the upper limit position approaching the temporary support frame, and the top dead center of the elevating mechanism reaches the bottom dead center at the lower limit position approaching the fixed support base. an opening/closing motor for driving the temporary support frame to open and close; an elevating motor for rotationally driving the crank mechanism; and a control means for interlocking the temporary support frame and the elevating mechanism so that the temporary support frame is opened and the elevating mechanism is then lowered to transfer the article onto the fixed support base. This is a cargo transfer device.