JPH04189706A - Device for packing work arranged on tray - Google Patents

Abstract

PURPOSE:To make it possible to pack a desired number of works in a tray in such a manner that the works are prevented from falling or being crushed and arranged in longitudinal rows in closely contacted state even if the works are made of soft material by a method wherein a work feed means, whereby the works (w) are arranged in one or more than one rows so that they are intermittently fed by a specified number from the front portion of the rows, and a tray feed means for transferring trays T in regularly spaced relationship in the same direction as that of the works (w) provided on the under side of the work feed means are provided. CONSTITUTION:When works (w) are fed onto a roller table 1, since a friction roller 1b is rotating, they are guided by a lane frame 2 and arranged into longitudinal rows and transferred until they are stopped by a gate 4a. When trays T are fed to upstream of a table 71 of a transfer conveyor 7, transfer claws 72b are projected from the table 71 to push the trays T and when they come to specified position, the gate 4a is opened and the roller 1b on the downstream side of a brake means 5 rotates so that a desired number of works (w) pass through the gate 4a. Next, said works (w) having stopped on a horizontal plate 3 are pushed by push claws 61 of a work push and drop means 6 and drop from the end of the plate 3 and are pushed into the tray T.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for aligning and packing workpieces onto trays, which allows the workpieces to be packed tightly in tandem into required trays that are successively transferred at equal pitches. Regarding equipment.

[Prior Art] Conventionally, the work of lining up and packing workpieces into trays that are transferred one after another at equal pitches, for example, the work of packing eggs into trays, has been carried out by a multi-type handling device that uses vacuum means. There is a case. However, the work of packing workpieces for which the use of vacuum means is unsuitable, such as the work of packing cream puffs into trays with transparent lids, cannot be mechanized because the cream puffs easily deform when held in a vacuum. It was done manually.

[Problems to be Solved by the Invention] The present invention is capable of packing a required number of workpieces into each tray that is transferred one after another in a vertically close state without overturning the workpieces. Even objects can be stuffed into the tray without being crushed. The purpose of the present invention is to provide a device for aligning and packing workpieces onto a tray.

[Means for Solving the Problem] According to the present invention, as a means for solving the above WI problem.

On the upper side, there is provided a workpiece supplying means A that arranges one or more workpieces W in a column and intermittently supplies a fixed number of them from the front of the line, and on the lower side, a tray T is provided at a predetermined interval and is transported and supplied in the same direction as the workpieces W. The workpiece supplying means A is provided with a tray transfer/supply means B for loading the fixed number of works W into each tray T at the tray conveyance end, and the workpiece supply means A is provided with a A work piece W is formed by laying a fitted friction rotating roller lb.
a roller table 1 for transferring the workpieces, a lane configuration frame 2 provided on the roller table 1, and a horizontal frame 2 installed on the downstream side of the roller table 1 for receiving the workpiece W transferred by the roller table 1. When the plate 3 and the corresponding tray T, which is provided at a downstream position of the roller table 1 and is transported below, come to a predetermined position, the gate 4a is opened until a required number of workpieces W have passed. A brake means is provided so as to contact and stop the friction rotation roller 1b in a required range upstream of the gate means 4 and the friction rotation roller 1b that is a certain distance upstream from the gate means 4 when the gate means 4 is opened. 5, and a required number of workpieces W passing through the gate 4a and stopping on the horizontal plate 3 and the roller table 1.
a push-out claw 61 that pushes and drops the horizontal plate 3 from the edge of the horizontal plate 3;
It consists of a workpiece pushing means 6 having a.

The tray transfer/supply means B has a required length in the transfer direction and rises with a gentle slope toward the downstream side in the transfer direction, and is configured such that the tray T can barely pass under the horizontal plate 3. A table 71 whose downstream end passes under the horizontal plate 3 and extends downstream in the transfer direction, and an endless winding body 72a provided under the table 71.
Transfer claws 72b attached at equal pitches to the table 7
The winding device 72 is adapted to move the tray T fed onto the table 71 by moving the tray T upward one step.
The push-out claw 61 of the workpiece pushing-down means 6 is configured to be in speed synchronization with the transfer claw 72b of the tray transfer conveyor 7, and the push-out claw 61 of the workpiece pushing-down means 6 is slightly ahead of the transfer claw 72b. horizontal plate 3
The required number of works W to be dropped from the end of the horizontal plate 3 is shifted by the required phase so that the workpieces W reach the end of the
To provide an apparatus for aligning and packing works onto a tray, characterized in that works are packed into a tray T transferred from the lower side of a horizontal plate 3.

[Operation] When the workpieces W, W, ... are supplied onto the roller table 1, the frictional rotating rollers lb, lb, ... are rotating, so the workpieces W, W, ... are placed in the lane configuration frame 2. The robots are guided by 4a, line up in a column, and move until they are stopped by game 4a.

The friction rotating rollers lb, lb, etc. on which the workpieces W, W, ... stopped by 4a stop frictional rotation when the workpiece W is heavy, and stop the frictional rotation when the workpiece W is light. Friction rotation becomes slightly slower.

On the other hand, when the tray T is fed to the upstream portion of the table 71 constituting the tray transfer conveyor 7, the transfer claw 72b rises above the table 71 and moves, pushing the tray T fed onto the table 71.

When the tray T comes to a predetermined position, the brake means 5 contacts and stops the friction rotary roller 1b in a required range upstream of the friction rotary roller 1b, which is a certain distance upstream from the gate means 4, and the gate h4a opens, and the brake means 5 Since the friction rotary roller 1b on the downstream side of the brake means 5 rotates, the required number of workpieces W located on the downstream side of the brake means 5 are rotated.
It will pass through 4a. Thereafter, the gate 4a is closed, the brake means 5 is separated from the friction rotating roller lb, and the works W, W, . . . move forward until they are stopped by the gate 4a.

The required number of workpieces W that have passed through the gate 4a try to be transferred onto the horizontal plate 3 one after another as if the one located at the rear in the transport direction pushes the one located at the front, but some It stops in the L,X state when it is not loaded. At this time, the required number of workpieces W are stopped in a close-coupled state.

Subsequently, the required number of workpieces W stopped on the horizontal plate 3 are pushed by the push-out claws 61 of the workpiece push-down means 6, and fall from the edge of the horizontal plate 3. At this time,
The tray T barely passes under the horizontal plate 3 and catches the workpiece W falling from the edge of the horizontal plate 3, synchronizing its speed and appearing with the minimum head, so that it does not fall from the edge of the horizontal plate 3. The workpieces W to be loaded can be neatly packed in a fractional row or a plurality of columns on the tray T without falling over.

[Example] Figures 1 to 4 show a cream puff stuffing device as an example of the device for aligning and stuffing works into a tray according to the present invention.

The cream puff stuffing device is equipped with a work supply means A that arranges cream puffs W, which are works, in a column on the upper side and intermittently supplies a fixed number of cream puffs from the front of the row, and below the cream puff filling device, a tray T is placed at a predetermined interval to store the workpieces W. The workpiece supplying means A comprises a roller table l, a lane configuration frame 2, a horizontal plate 3, a gate means 4, and a brake means 5. and a workpiece push-down means 6, and the tray transfer and supply means B includes a tray drop device 9, a supply conveyor 10, a tray transfer conveyor 7, a tray stop device 11, a transfer device 12, and an unloading device. It consists of 13 conveyors.

The roller table 1 is constructed by installing a friction rotating roller lb that is loosely fitted onto a rotating shaft 1a that is rotationally driven, and the friction rotating roller 1b transfers a cream puff W, which is a workpiece, by receiving a frictional torque from the rotating shaft 1a. The obtained zero rotation axis 1a is
From the common driving shaft 1c, the rope sheep ld, the rope le,
It is rotated via the rope sheep If.

The lane configuration frame 2 is made up of three rib-shaped strips that are vertically hung above the roller table 1 by appropriate fixing means so as not to contact the friction rotating roller 1b, and doubles the table surface of the roller table 1. It is partitioned to form two lanes.

The horizontal plate 3 has the upper surface of the plate as the roller table 1.
It is installed adjacent to the downstream side of the roller table 1 so as to be 2 to 3 mm lower than the conveying surface of the roller table 1, and receives the work W transferred by the roller table 1.

The gate means 4 is configured to open and close the lane by vertically moving the gate 4a using a gate actuator 4b on the table surface at a downstream position of the roller table 1, and when the gate 4a is closed, the lower side The third sensor C3 detects that the corresponding tray T to be transferred has arrived at the predetermined position, and the fourth and fifth or sixth sensors C4゜C5, CB select the first, third or The gate 4a opens when the fourth workpiece is detected, and promptly closes after eight workpieces W in two rows have passed.

The brake means 5 includes brake shoes 5a that contact and stop the two friction rotating rollers 1b on which the fourth workpiece W is placed on the upstream side counting from the gate 4a, and five brake shoes 5a on the upstream side counting from the gate 4a. A brake shoe 5b that contacts and stops the 15 friction rotating rollers 1b on which the eight workpieces W after the first one are placed, a brake actuator 5c that moves the brake shoe 5a up and down, and a brake that moves the brake shoe 5b up and down. In this embodiment, there are eight brake actuators 5c, so that the brake shoes 5a are always in a non-operating state in which they stop rising. In the brake means 5, only while the gate means 4 is open, a brake actuator 5d operates to bring the fifteen friction rotating rollers 1b into contact and stop with the brake shoes 5b.

The workpiece push-down means 6 is constructed by attaching two lip-shaped push-out claws 61 at equal pitches to a belt 62a of a winding device 62, which is driven by power branched from a tray transfer conveyor 7 via a transmission system 8. , the pitch of the two push-out claws 61 is the same as the pitch between the claws of the transfer claws 72b of the tray transfer conveyor 7, and the push-out claws 61 are synchronized with the speed and position of the transfer claws 72b of the tray transfer conveyor 7. The push-out claw 61 of the workpiece push-down means 6 is synchronized in speed with the transfer claw 72b of the tray transfer conveyor 7, and
By shifting the phase so that it reaches the end of the horizontal plate 3 earlier than b by the edge dimension of the tray, the push-out claw 61 passes through the gate 4a and collides with the horizontal plate 3 and the hill of the roller table l. A required number of workpieces W, which are stopped at , are pushed and packed into the tray T, which is transferred from the end of the horizontal plate 3 to the lower side, with a step difference being minimized.

The tray dropping device M9 is not particularly limited, and a commercially available product may suffice. When it is detected that the tray T is not present, a vacuum pad (not shown) sucks the frontmost tray T and pulls it away, and then releases the suction and supplies the tray T falling through a chute to the upstream portion of the supply conveyor IO.

The supply conveyor 10 is a belt conveyor, and receives and transfers the tray T dropped from the tray dropping device 9.

The tray T consists of a workpiece storage part t1 that can accommodate eight works in two rows in close contact with each other, and a lid part t2 that covers the workpiece storage part tl by folding it in half, and the workpiece storage part t1 is shallow. , the lid portion t2 is deep.

The tray transfer conveyor 7 is connected to the downstream side of the supply conveyor 1o, and includes a table 71 having a required length in the transfer direction, a chain-type winding device 72 provided under the table 71, and a chain-type winding device 72. The winding is attached to the endless winding body (chain) 72a of the mounting M72 at equal pitches, and has transfer claws 72b that rise above the table 71 and move along the table 71, and are transported by the supply conveyor lo. The tray T is placed on the table 71 and the rear end of the tray is pushed by the transfer claw 72b, so that the tray T is transferred so as to just barely pass under the horizontal plate 3.

The table 71 has a required length in the transfer direction, and rises at a gentle slope as it goes downstream in the transfer direction, and its downstream end passes slightly below the horizontal plate 3 and extends downstream in the transfer direction.

In order to stably transport the tray T with the lid part t2 not closed, the table 71 includes a guide part 71° for placing and guiding the workpiece accommodating part tl, and a guide part for placing and guiding the lid part t2. A step is formed so that it is divided into 71".

The winding device 72 connects a drive sprocket 72c driven by a motor 73 and an endless chain 72, which is the endless winding body, to a floating sprocket 72d that can adjust the distance between the drive sprocket 72c and the drive sprocket 72c.
There are a pair of transfer claws 72bt on both sides of the table 71, one of which pushes the work storage part t1 of the tray T, and the other pushes the lid part t2. By moving the tray T, it is possible to transport the tray T without shifting in the lateral direction of the traveling direction.

Note that when the tray T is changed, the distance between the floating sprocket 72d and the drive sprocket 72c may be adjusted, and the endless winding body 72 may be adjusted depending on the length of the tray T.
It is necessary to adjust the length of a and the pitch between the transfer claws 72b.

The supply conveyor 10 is driven by power branched from the shaft of the drive sprocket 72a. Note that the transfer claw 72b may be configured to fall backward at the downstream end of the 1wj feed or may not fall, and a preferable one is adopted depending on the line system.

The tray-time stop device M11 temporarily stops the tray T that has come to a required downstream position of the supply conveyor IO, and
The stop is released by measuring the timing with the transfer claw 121 of No. 2. The tray stop device 11 includes an actuator 111 consisting of an air cylinder, a lever 113 attached to a pivot shaft 112 and swung by the actuator 111, and a lever 113 attached to the lever 113 and waiting above a required downstream position of the supply conveyor IO. a second tray sensor C2.
When detecting that the tray has come to the downstream part of the supply conveyor 10, the actuator 111 is actuated to lower the tray stop claw 114 to the front side of the rear end wall of the tray T that has reached the required downstream position of the supply conveyor io. The tray T is temporarily stopped, and when the transfer claw 121 of the transfer device 12 returns to a predetermined position immediately before the start of transfer, the transfer claw 121 is raised to release the stoppage of the tray T. It has become.

Then, when the distance from the upstream end of the table of the transfer claw 72b that rises and moves at the end of the tray transfer conveyor 7 moves so that it becomes approximately equal to the tray length, the tray T The temporary suspension is now lifted.

The transfer device 12 transfers the tray T, which has been temporarily stopped by the tray temporary stop device 11, to a desired position on the tray transfer conveyor 7 at high speed. The belt winding device 1122 is configured to have two transfer claws 121, and the belt winding device 1122 is rotated at high speed in the opposite direction by power branched from the shaft of the drive sprocket 72c of the tray transfer conveyor 7 via the transmission system 14. , and the transfer claw 12
Immediately after passing the front end wall of the tray T whose temporary stop by the tray stop device 11 is released, the tray T reaches a position close to the upstream end of the box motion, understitches, and moves at high speed in the transport direction of the tray transport conveyor 7. Then, by pushing the front end wall of the tray T, the tray T is pushed to a position close to the transfer claw 72b that rises to the rearmost position, and after the transfer of the tray T is completed, the tray T escapes upward. It has become.

The carry-out conveyor 13 is a belt conveyor and serves to transfer the trays to the next line (not shown) on the downstream side of the tray transfer conveyor 7.

Next, the operation of the embodiment apparatus having the above configuration will be briefly explained.

However, since the operation of the workpiece supply means A that constitutes the upper half of the apparatus is the same as that described in the column of the operation above, the tray transfer and supply means B that constitutes the lower half of the apparatus
The effect of this will be explained.

When the tray T is dropped from the tray dropping device M9 to the upstream part of the supply conveyor lO at required time intervals, the tray T is dropped from the tray drop device M9 to the upstream part of the supply conveyor lO
receives the trays T one after another and transfers them to the tray transfer conveyor 7. The supply conveyor 10 transfers the trays T at intervals smaller than the pitch between the transfer claws 72b of the tray transfer conveyor 7 by adjusting the transfer speed as required. The tray-time stop device 11 is connected to the supply conveyor 1.
The tray T that has reached the required downstream position of 0 is temporarily stopped. The purpose of this temporary stopping of the trays T is to adjust the time so that each tray T is pushed by each transfer claw 121 of the transfer device 12. Then, when the transfer claw 72b rising and moving at the rear end of the tray transfer conveyor 7 moves so that the distance from the claw rising position at the rear end of the table 71 is approximately equal to the tray length,
The tray stop device 11 releases the tray T from being temporarily stopped. Then, the tray T will continue to be transferred by the supply conveyor 10, but the transfer claw 121 of the transfer device 12, which has returned to the vicinity of the tray T, moves the tray T at the transfer speed of the supply conveyor 10. The table 7 is pushed at a required higher speed than the transfer speed of the tray transfer conveyor 7 and is close to the transfer claw 72b that rises to the rearmost position.
It is possible to avoid buffering between the tray T transferred by the transfer claw 72b and the transfer claw 72b, which is transferred to a desired position on the top of the transfer claw 121 and then raised to the rearmost position.

The tray T comes to a momentary stop on the table 71, but then the transfer claw 72b rising at the rear end pushes the rear end of the tray T.

In this way, each transfer claw 72b reliably pushes one tray T, and each tray T barely passes under the horizontal plate 3.

Note that the tray transfer and supply means B is replaced by the tray dropping device 9,
Supply conveyor 10, tray transfer conveyor 7, tray stop device 11, transfer device 12, and discharge conveyor 1
The reason for this structure is that if the falling time interval of the tray dropping device and the conveyance speed of the supply conveyor and transfer conveyor are appropriately adjusted, the trays that are dropped one after another from the tray dropping device can be received by the supply conveyor. At this time, the tray is temporarily stopped on the supply conveyor, and at a timing such that the tray being transferred between the conveyors is not pushed up by the transfer claw that stands up at the end of the tray transfer conveyor. A transfer conveyor having transfer claws of a required even pitch is used to ensure that the trays can be quickly and reliably transferred between the transfer claws, and to prevent trays that are dropped one after another from the tray dropping device from being separated by large distances. This is because it can be transported without error.

[Effects of the Invention] As explained above, according to the apparatus for aligning and packing workpieces onto trays of the present invention, the workpieces are fed onto the roller table and the trays are placed on the table of the tray transfer conveyor. When placed,
The workpieces can be aligned and stopped in a single row or t±multiple rows at the gate position, and the required number of workpieces can be intermittently passed through the gate and pushed down from the edge of the horizontal plate while keeping the workpieces in close contact with each other in the vertical row. By transporting the trays at equal pitches so that they pass just below the edge of the horizontal plate and emerge from the bottom of the edge of the horizontal plate, it is possible to minimize the drop of the workpiece. Since the timing of the work being dropped matches the timing of the tray appearing from below the edge of the horizontal plate and the speed can be synchronized, it is possible to overturn the required number of workpieces onto each tray that is transferred one after another. They can be packed in close contact in a column without any problems. In particular, the work is pushed down from the edge of the horizontal plate and packed into the tray, and the work is not gripped or held by suction to be packed into the tray, so the work cannot be soft like cream puffs. Even if there is something, it can be stuffed into a tray so that it doesn't get crushed.

[Brief explanation of drawings]

FIG. 1 shows a schematic overall view of an embodiment in which a device for arranging and packing workpieces into trays according to the present invention is applied to a device for packing cream puffs into a tray.
3 is an enlarged detailed view showing the main part, and FIG. 4 is an enlarged sectional view taken along the line 1--2 in FIG. 1. W... Work, A... Work supply means, B... Tray transfer supply means, T10 tray l... Roller table, 1a... Fist rotation axis. ■b...Friction rotating roller, 2...Lane configuration frame, 311...Horizontal plate, 4...φ gate means, 4a...Gate, 5 @s...Brake means, εΦ...Work pushing down means , 6a... Push-out claw, 7... Fist table, 8... Tray transfer conveyor, 8a-Fist/endless winding body, 8b- Fist-fist transfer claw, Figure 2 Procedural Amendment December 11, 1990

Claims (1)

[Claims] On the upper side, there is provided a workpiece supply means for arranging one or more workpieces in a column and intermittently supplying a fixed number of them from the front of the row, and on the lower side, a tray is provided at a predetermined interval in the same direction as the workpieces. Tray transfer and supply means is provided to pack the fixed number of workpieces into each tray at the tray conveyance end, and the workpiece supply means is a friction roller that is loosely fitted to a rotary shaft that is rotationally driven. A roller table with rotating rollers installed to transfer the workpiece, a lane configuration frame provided on the roller table, and a lane configuration frame installed on the downstream side of the roller table to receive the workpiece transferred by the roller table. a horizontal plate provided at a downstream position of the roller table, and a gate means configured to open a gate until a required number of workpieces have passed when a corresponding tray conveyed on the lower side comes to a predetermined position; , a brake means provided to contact and stop a friction rotation roller in a required range upstream of the friction rotation roller a certain distance upstream from the gate means when the gate means opens;
a workpiece pushing means having a push-out claw for pushing a required number of works passing through the gate and stopping on the horizontal plate and the roller table and dropping them from an end of the horizontal plate, the tray transfer supply means has a required length in the transfer direction, and rises at a gentle slope as it goes downstream in the transfer direction, and its downstream end is connected to the horizontal plate so that the tray can barely pass under the horizontal plate. A table passes under the table and extends downstream in the transfer direction, and transfer claws provided under the table and attached to the endless winding body at equal pitches rise above the table and move. a tray transfer conveyor consisting of a wrapping device adapted to push a tray supplied to the workpiece, and a push-out claw of the workpiece push-down means is speed synchronized with a transfer claw of the tray transfer conveyor. The required number of workpieces w to be dropped from the end of the horizontal plate 3 are moved to the lower side of the horizontal plate 3 by shifting the phase so that the transfer claw reaches the end of the horizontal plate a little earlier than the transfer claw. A device for aligning and packing workpieces onto a tray, characterized in that the workpieces are packed into a tray T that is being transferred.