JPH0920428A - Supplier device - Google Patents

Abstract

PURPOSE: To provide a supplier device whereby a treated object can be supplied to a treating machine without omission. CONSTITUTION: A device is provided with a belt conveyer 30 having a plurality of bucket parts for storing a molded spoon (treated object) in a conveying surface to supply the molded spoon 20 to a packaging machine (treating machine) 1 and a loader (loading machine) 40 for loading a molded spoon 20 stored in a tray 10 of a drawing out station (loading station) 6 in the belt conveyer 30. The device is provided with a servomotor for running the loader 40, encoder detecting a rotational speed of a conveyer motor of the belt conveyer 30 and loading timing from the loader 40 to the belt conveyer 30 and a control part of controlling the servomotor driven so as to move the loader 40 synchronously with a conveying speed of the belt conveyer 30 when transfer loaded the molded spoon 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply device for sequentially supplying an object to be processed to a processing machine for performing a predetermined process on the object.

[0002]

2. Description of the Related Art In a product packaging line, for example, a product supply device generally comprises a conveyor for supplying products to be packaged to a packaging machine and a transfer device for transferring the products to the conveyor. Is provided.

By the way, in order to smoothly perform the packaging process on the packaging machine side, it is necessary to arrange the products transferred to the conveyor by the transfer device at a predetermined pitch on the conveyor surface. Therefore, particularly when handling small products such as forming spoons and straws, a conveyor having a plurality of bucket portions arranged at a predetermined pitch on the conveying surface is often used.

However, in a product packaging line using such a conveyor, when a transfer failure of a product, for example, a transfer failure of a molding spoon occurs in any of the bucket portions, it is supplied to the packing machine side. A supply leak occurred in the forming spoon, and as a result, there was a part where the forming spoon was not contained in a band-shaped film sheet in which a predetermined number of forming spoons were film-sealed, and this film sheet itself became a defective product. There is a problem that it ends up.

The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a supply device capable of supplying an object to be processed to a processing machine without omission.

[0006]

A supply device according to the invention of claim 1 is a supply device for sequentially supplying an object to be processed to a processing machine which performs a predetermined process on the object. A conveyor that has a plurality of buckets for storing the processed material on the transport surface, supplies the processed material to the processing machine, a processed material placement station on which the processed material is placed, and the conveyor. A transfer device that is provided so as to be able to travel between the transfer device and that transfers an object to be processed placed on the object mounting station to the conveyor, a servomotor for causing the transfer device to travel, and the conveyor Of the number of rotations of the drive motor, transfer timing detection means for detecting the transfer timing from the transfer device to the conveyor, the rotation speed detection means and the transfer timing detection means For each detection signal Then, when the object to be processed is transferred onto the conveyor, a control means for driving and controlling the rotational speed of the servo motor so that the transfer device moves in synchronization with the transfer speed of the transfer surface of the conveyor. It is characterized by having.

According to a second aspect of the present invention, in the first aspect, the rotation number detecting means and the transfer timing detecting means are constituted by an encoder or a tacho-generator.

[0008]

According to the supply device of the present invention, the object to be processed placed on the object mounting station is transferred to the conveyor side by the transfer device and transferred into each bucket of the conveyor. However, at the time of this transfer, first, the rotation speed of the conveyor drive motor is detected by the rotation speed detection means,
A detection signal is output. Further, the transfer timing detection means detects the transfer timing of the transfer device with respect to the conveyor, and outputs a detection signal.

Based on these detection signals, the control means drives and controls the rotation speed of the servo motor for traveling the transfer device. As a result, the transfer device moves in synchronization with the transfer speed of the conveyor transfer surface, and the object to be processed is transferred from the transfer device into each bucket of the conveyor.
As a result, the objects to be processed are sequentially supplied to the processing machine.

As described above, according to the present invention, at the time of transfer from the transfer device to the conveyor, the object to be transferred transferred by the transfer device is transferred while being moved in synchronization with the moving speed of each bucket of the conveyor. Since the loading process is performed, it is possible to transfer the object to be processed into each bucket portion of the conveyor without omission, and thus it is possible to supply the object to be processed to the feeder without omission.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 8 are views for explaining a supply device according to an embodiment of the present invention, FIG. 1 is a schematic front view of a product packaging line in which the device of the present embodiment is adopted, and FIG. 2 is a plan partial view thereof. 3, FIG. 3 is a front view of the apparatus of the present embodiment, FIG. 4 is a schematic block diagram of a control unit of the apparatus of the present embodiment, FIG. 5 is a flow chart for explaining the control operation of the control unit, and FIGS. It is a figure for demonstrating operation | movement of the Example apparatus.

This product packaging line is a packaging line for film-molding a resin-made molding spoon. As shown in FIGS. 1 and 2, the packaging machine 1 and the molding spoon 20 are supplied to the packaging machine 1. And a stocker device 3 for temporarily stocking the forming spoons 20 to be introduced into the supplying device 2.

The wrapping machine 1 is for sealing a molding spoon in two films, an upper reel 12 for feeding a lower film, and an upper reel 12 for feeding an upper film. A main roller 13 that winds the upper and lower films while sandwiching the molding spoon,
Seal roller 1 for heat-sealing upper and lower films
4, 15, a perforation processing device 16 for making perforations in the film, and a cutting roller 17 for separating the film into predetermined lengths. In addition, a unloading conveyor 18 is provided on the product unloading side of the packaging machine 1.
Is arranged.

The stocker device 3 is arranged on the introduction station 4 on which the empty tray 10 into which the molding spoon 20 is introduced from a molding machine (not shown) is placed, and on the side thereof, and the molding spoon 20 is introduced at the introduction station 4. A stock station 5 for stocking the trays 10 thus stacked in a vertical direction (vertical direction to the plane of FIG. 2) and a tray 10 for storing the spoons 20 which are arranged on the side of the supply device 2 and which are drawn out by the supply device 2 are mounted. And a delivery station (placement station) 6 placed. In addition,
Although not shown, a tray 10 is provided between the stations.
A delivery mechanism composed of an air cylinder or the like for delivering the above is provided.

The feeding device 2 is provided with a belt conveyor 30 arranged between the packaging machine 1 and the deriving station 6, and a forming spoon movably provided above the belt conveyor 30 and placed on the deriving station 6. Loader (transfer device) 40 for transferring 20 to the belt conveyor 30
And

The belt conveyor 30 is a drive motor (not shown) arranged near the main roller 13 of the packaging machine 1.
Drive roller 31 driven to rotate by driven roller 32, driven roller 32 arranged on the side of outlet station 6, and each roller 3
It has a belt 33 wound around 1 and 32.

As shown in FIG. 3, the drive roller 31 and the driven roller 32 are rotatably supported by a support frame 22 fixed on the base 21 of the feeder 2. In the support frame 22 near the drive roller 31,
An encoder 62 is provided which detects the rotational speed of the drive motor and also detects the transfer timing of the loader 40 onto the belt conveyor 30. A plurality of bucket portions 34 for accommodating the forming spoon 20 are provided on the conveying surface of the belt 33 over the entire circumference of the conveying surface. For example, 10 bucket units 34 are set as one set, and one set of bucket units 3 is formed by one transfer process of the loader 40.
The molding spoon 20 is transferred to Nos. 4 (No. 1 to 10).

The loader 40 includes a loader main body 43 movably supported by two upper and lower guide shafts 41 and 42 arranged above the belt conveyor 30, and a lifter 44 attached to the loader main body 43 so as to be vertically movable. And a plurality of suction pads 45 (here, 10) that are attached to the lower part of the suction pad 45 and are composed of an air cylinder or the like.

On the other hand, a belt 50 is arranged in parallel with each guide shaft 41, 42, and the belt 50 is wound around a drive pulley 51 and a driven pulley 52 arranged at both ends of each guide shaft 41, 42. It is hung. Loader body 43
Is locked to the belt 50 so that the belt 50 can travel along the guide shafts 41 and 42 as the belt 50 travels.

Further, as shown in FIG.
A gear 54 is fixed to the drive shaft 53 to which is attached, and a pinion 56 fixed to the rotary shaft end of a servo motor 55 is meshed with the gear 54.

The above-mentioned supply device 2 is equipped with a control unit 60 as shown in FIG. I / O port 61 of control unit 60
An encoder 62 and another input unit are connected to. Further, the I / O port 61 is connected to a solenoid valve 63 for turning ON / OFF the suction pad 45 of the loader 40, a lifter 44, a servo motor 55, and another output section.

The supply device 2 is controlled by the control unit 60 and operates as described below. First, in step S1 of FIG. 5, the loader 4 is moved to the initial position where the suction pad 45 of the loader 40 is arranged above the outlet station 6.
Place 0 (see FIG. 3). At this time, a predetermined number of forming spoons 20 are stacked on the tray 10 placed on the deriving station 6, and the suction pads 45 of the loader 40 face each other above the uppermost forming spoons 20. Has been done.

Next, in step S2, the drive motor (conveyor motor) of the conveyor 30 is driven to rotate the drive roller 31 and cause the belt 33 to travel at a predetermined speed. Next, in step S3, the lifter 44 of the loader 40 is
And the solenoid valve 63 (FIG. 4) is turned on to start suction by the suction pad 45. Thereby, the uppermost forming spoon 20 placed on the tray 10 is
Are sucked and held by the suction pad 45. Next, step S
At 4, the lifter 44 is raised.

Next, in step S5, the servo motor 5
By driving 5 to rotate at high speed, the belt 50 travels at high speed, and the loader 40 is moved to the standby position (solid line position in FIG. 6) where the suction pad 45 is arranged above the belt conveyor 30. Then, at this standby position, the loader 4
Pause 0.

While the loader 40 is on standby, in step S6, the conveyor motor rotation speed detection signal detected by the encoder 62 (FIG. 4) is input. Next, in step S7, the input timing detection signal from the encoder 62 is waited for.

In other words, in this case, when the No. 1 bucket portion of the empty bucket portions 34 provided on the belt 33 comes to the position immediately before facing the suction pad 45 at the left end of the drawing, A transfer timing detection signal is output from the encoder 62, and this detection signal is input to the control unit 60.

If the transfer timing detection signal is input,
Move to step S8. In step S8, driving of the servomotor 55 is started, and based on the conveyor motor rotation speed detection signal input in step S6,
By controlling the drive of the servomotor 55, the traveling speed of the loader 40 is synchronized with the conveying speed of the belt 33 of the belt conveyor 30.

As a result, as shown in FIG.
The suction pads 45 of 0 are the bucket portions 34 of the belt 33.
With the loader 40 facing the belts (No. 1 to 10), the belt 3
It moves at a traveling speed equal to the transportation speed of No. 3. Next, in step S9, the lifter 44 is lowered and the electromagnetic valve 63 is turned off to stop the suction by the suction pad 45. As a result, the forming spoons 20 are transferred from the corresponding suction pads 45 into the respective bucket portions 34 (Nos. 1 to 10). Next, in step S10, the lifter 44 is raised.

Next, in step S11, the servomotor 55 is rotated in the reverse direction at a high speed to move the loader 40 to the initial position as shown in FIG. This completes the first transfer process of the loader 40 on the belt conveyor 30. Each forming spoon 20 on the belt conveyor 30 is conveyed to the drive roller 31 side of the belt conveyor 30 and then sequentially supplied to the main roller 13 of the packaging machine 1.

Next, in step S12, it is determined whether or not the transfer processing should be ended. If the forming spoon 20 still remains in the tray 10 placed on the outlet station 6, the program returns to step S3, and steps S3 to S3.
The process of step S11 is repeated.

That is, for example, during the second transfer process, when the loader 40 starts moving in synchronization with the conveying speed of the belt conveyor 30, each suction pad 4 of the loader 40 is moved.
5 is the next set of bucket portions 34 on the belt conveyor 30.
(No. 1 to 10) are opposed to each other, and in this state, the transfer processing is performed while moving in synchronization with the conveyance speed of the belt conveyor 30.

In this way, the forming spoon 20 can be transferred without leak into the bucket portions 34 of each adjacent set.

If it is determined in step S12 that the transfer process has been completed for all the molding spoons 20 in the delivery station 6, the determination in step S12 is Yes.
and the program ends.

As described above, according to this embodiment, the forming spoon 20 can be transferred into each of the bucket portions 34 of the belt conveyor 30 without any leakage, whereby the forming spoon 20 does not leak to the packaging machine 1. Can be supplied without.

In the above embodiment, the belt conveyor 3
An example is shown in which one encoder 62 is used to detect the number of rotations of the drive motor (conveyor motor) of 0 and the transfer timing from the loader 40 to the conveyor 30, thereby simplifying the configuration of the entire apparatus. However, a tacho generator may be adopted instead of the encoder 62. Further, an encoder or a tacho-generator may be used to detect the rotation speed of the conveyor motor, and a photoelectric switch may be used to detect the transfer timing.

Further, in the above-mentioned embodiment, the example in which the present invention is applied to the spoon supply device of the spoon packaging line is shown, but the present invention is applied not only to the product supply device of other commodity packaging lines but also to the assembly line. The present invention can be similarly applied to a supply device that supplies assembly parts to an assembly machine.

[0037]

As described above, according to the supply device of the present invention, when the object to be processed is transferred onto the conveyor, the transfer device moves in synchronization with the transfer speed of the conveyor transfer surface. Since the number of rotations of the conveyor is controlled, it is possible to transfer the object to be processed into each bucket of the conveyor without any leakage, and thus it is possible to supply the object to the feeder without leakage. There is.

[Brief description of drawings]

FIG. 1 is a schematic front view of a product packaging line in which a supply device according to an embodiment of the present invention is adopted.

FIG. 2 is a partial plan view of the product packaging line.

FIG. 3 is a front view of the supply device.

FIG. 4 is a schematic block diagram of a control unit of the supply device.

FIG. 5 is a flowchart for explaining a control operation by the control unit.

FIG. 6 is a view for explaining the operation of the supply device.

FIG. 7 is a view for explaining the operation of the supply device.

FIG. 8 is a view for explaining the operation of the supply device.

[Explanation of symbols]

1 Packing Machine (Processing Machine) 2 Feeding Device 6 Derivation Station (Processing Object Placement Station) 20 Spoon (Processing Object) 30 Conveyor 33 Transport Surface 34 Bucket Section 40 Loader (Transfer Equipment) 55 Servo Motor 60 Control Section 62 Encoder (rotation speed detection means, transfer timing detection means)

Front page continuation (72) Inventor Tadayoshi Teramoto 1-16-5 Tamadenishi Nishinari-ku, Osaka City Toho Shoji Co., Ltd. Within

Claims (2)

[Claims] 1. A supply device for sequentially supplying an object to be processed to a processing machine for performing a predetermined process on the object, wherein a plurality of bucket portions for accommodating the object to be processed are provided on a transfer surface. A conveyor for supplying an object to be processed to the processing machine, a processing object placing station on which the object to be processed is placed, and a conveyor movably provided between the processing object placing station and the processing object placing station. A transfer device for transferring the object to be processed placed on the conveyor, a servomotor for causing the transfer device to travel, and a rotation speed detection unit for detecting the rotation speed of the drive motor of the conveyor, Transfer timing detection means for detecting the transfer timing from the transfer device to the conveyor, and based on each detection signal of the rotation speed detection means and the transfer timing detection means, to the conveyor of the object to be processed At the time of transfer A controller for driving and controlling the number of rotations of the servo motor so that the transfer device moves in synchronization with the transfer speed of the transfer surface of the conveyor. 2. The supply device according to claim 1, wherein the rotation speed detecting means and the transfer timing detecting means are constituted by an encoder or a tacho-generator.