JPH086797Y2 - Pallet type filling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pallet type filling device applied to continuously fill a large number of containers with, for example, a solution.

[Conventional technology]

A conventional pallet type filling device is, for example, Japanese Patent Publication No. 63-30.
For example, the one described in Japanese Patent No. 233 is available. This is to carry out the steps such as solution filling, capping, and inspection on these containers continuously while placing them on a pallet, and Figs. 5 to 10 show the structure of this device. Figure, No. 11
The figure is an illustration of the operation.

In FIG. 6, a plurality of bottle-shaped containers 101 are placed in a predetermined arrangement on a pallet 102 transferred in the direction of arrow A. Each container 101 is a saucer provided on a pallet 102
The bottom portion is supported by 103 and placed on the pallet 102, and the tray 103 has an operation hole 103a at the center thereof, and engages the operation hole 102a formed in the pallet 102 with a taber,
As a result, the container 101 can be attached to and detached from the pallet 102 in the upward direction together with the tray 103.

In FIG. 5, reference numeral 104 denotes a control device, which controls each step of the work. The transferred container 101 is
It is distributed by a distribution device 105 that swings around a width 105a, sent by a conveyor 106, and aligned by a wall 107. The containers 101 aligned at the position B are arranged on the prepared pallet at predetermined pitches Px, Py as shown in FIG. 5 by the array operation 108 in which the containers 101 are reciprocally moved by being guided by the frames 108a, 108a above their heads. Arranged and placed. Pallet 102 with container 101
Are transferred by a conveyor 109 in the direction of arrow A, and during this transfer, steps C, C, and E are provided for carrying out operations such as solution filling, capping, and foreign matter inspection on the container 101 on the pallet.

The solution filling step C will be described with reference to FIG. The pallet 102 sent to the filling step has the supply nozzle 1 arranged in the mouth portion 101a of each container 101 and the solution tank 110 which is a filling device.
It is made to stand still by matching 11 positions. Pallet 102
When is stopped, the hydraulic valve 112 is actuated by the command a from the control device 104, and the hydraulic pressure is applied to the cylinder 113.
The solution filling meter 114 provided below the pallet 102 moves upward. The weighing device 114 is provided with a plate supporting rod 117 having a weight detector 116 in the same number as the receiving plate 103 on the plate 115 so as to match the position of the receiving plate 103, and a hole of the receiving plate is provided at the tip of the rod 117. An engaging member 117a that engages with 103a and a lower portion of the plate are provided with a rod 119 that can be inserted into a guide 118 in order to keep the plate 115 horizontal when moving up and down. The pan 103 supported by the rod 117 by the upward movement of the weighing device 114.
Is removed from the hole 102a, and the entire container 101 moves upward together with the tray 103.

After that, when the next command b is issued to operate the valve 120 and thereby the cylinder 121, the tank 110 moves downward and all the nozzles 111 are inserted into the container 1 through the mouth 101a. The switching valve 122 is operated by the generated command c,
The valve 124 provided in each nozzle 111 is operated to supply and fill the solution 124 from the tank into the container. When the supply of this solution is started, along with the rise of the liquid level in the container 101, all the nozzles 111 are gradually raised by the cylinder 121, but the tip of the nozzle 111 is a solution so as not to generate bubbles. 124
Must be kept inside.

When the container 101 is filled with the prescribed amount of the solution, the detector 116
The command d, e is issued from the control device 104 by the signal issued by
The valves 122 and 120 are activated to stop the solution supply and the upward movement of the nozzle 111. Next, when the command f is issued, the plate 112 is moved downward through the cylinder by the operation of the valve 112, the receiving tray 103 is fitted into the hole 102a again, the container 101 is placed on the pallet 102, and the solution filling step C is performed. finish.

The capping step D will be described with reference to FIG. The pallet 102 that has completed the solution filling step C is transferred to the capping step D by the conveyor 109. Capping device 125
Includes a pre-tightening punch 126 and a final-tightening punch 127, each of which consists of four punches arranged side by side in the lateral direction.
The spacing of 127 is equal to Px. The pallet 102 is transferred until the container in the front row is located directly below the punch 126, and the cylinder 128 is operated at that position so that the pallet 102 is supported by the roller conveyor 129. And fix it to the rod 131a of the cylinder 131. Therefore, the pallet 102 is transferred by the cylinder 131 on the conveyor 129 in 1-pitch Px steps, and the containers 126 are pre-tightened row by row by the punches 126 and 127, and capping work is performed in the order of final fastening. When capping work is completed for the four rows of containers on the pallet 102,
The cylinder 128 is operated and the conveyor 129 is moved downward to move the pallet 2 to the conveyor 9, and the capping step D is completed.

The foreign matter inspection step E will be described with reference to FIG. Conveyor
The pallet 102 sent by 109 is transferred to the roller conveyor 133 that moves up and down by the cylinders 132, 132, and the rear end of the pallet 102 is fixed to the tip of the rod 135a of the cylinder 135 by the electromagnet 134. After that, the pallet 102 is transferred by the cylinder 135 until the front row of the container 1 is located directly above the rotating device 136. Cylinder 136a in this position
And the rod 136c equipped with the motor 136b is used to
Is removed from the hole 2a to move the container 1 upward, and then the motor 136b is operated to give the solution in the container 101 a rotational motion of about 600 to 800 rpm. A saucer 103 is provided at the tip of the rod 136c.
It is provided with the above-mentioned engaging portion 136d that engages with. After giving the solution a rotary motion, the motor 136b is stopped and the cylinder 13
By operating 6a, the pan 103 and the container 101 are moved downward, and the pan 103 is inserted into the hole 102.
It is attached to a and the container 101 is placed on the pallet.

Next, the cylinder 135 is operated to feed the pallet for one pitch Px in the traveling direction. As a result, the containers in the first row are located directly above the container lifting device 137, and the containers in the second row are located directly above the rotating device 136. When the cylinder 137a of the lifting device 137 is activated, the rod 137
The containers in the first row are raised by b so as to be located between the light projector 138 and the light receiver 139. The engagement relationship between the tip of the rod 137b and the pan 103 is as described above. The light projector 138 includes the light source 138a and the Fresnel lens 138b, and the light receiver 139 includes the objective lens 139a and the light receiving plate 139b. The light receiving plate 139b is composed of several thousand light receiving elements arranged in a straight line in the vertical direction, and each of the light receiving elements sends a signal according to the amount of light to the arithmetic unit 140.

The principle of foreign matter inspection will be described with reference to FIG. If the foreign matter 141 is present in the solution 124 that performs the rotary motion given by the rotating device 136, the foreign matter 141 must be 1 during one rotation.
Light receiving element by blocking the transmitted light L from the rotating light source 138a
This is a method of determining suitability or unsuitability based on the change in the amount of light received by the light receiving element 139b-1 to form a shadow on 139b-1. Actually, one container is repeatedly measured a plurality of times (about 100 times), and each measured numerical value 142 is integrated by the arithmetic unit 140 as shown in FIG. 11, and judgment is made based on the magnitude of the integrated value 143. . For example, if there is a foreign substance in the solution 124, the integrated amount of received light 143 becomes extremely small, and therefore it can be determined.

As described above, the foreign substances are inspected for the first row containers, and the rotating device 1 is used for the second row containers 101.
The solution imparts a rotary motion to the solution as described by 36.
The inspection work and the work of giving rotation are performed almost at the same time,
After that, each saucer 103 is returned to the hole 102a and the pallet 102 is
The container 101 is placed on the top, and the inspection process E is completed. Although the above operation is repeated after this, the foreign matter inspection E is divided into two in order to shorten the time in order to shorten the time, and thus the foreign matter inspection of the second row of containers is completed. Then, it is transferred to the next foreign substance inspection device 144b and the same operation is repeated.

As described above, the solution filling step C, the capping step D,
After the foreign matter inspection step E is performed, the pallet 102 is
It is sent to the container unloading device 145 shown in the figure. Conveyor 109
A container holding device 145b that is reciprocally guided by the frames 145a and 145a is provided on the end of the pallet 102 and the unloading conveyor 146. Move it to 146. The container 101 transferred to the conveyor 116 is transferred to the line conveyor 147 by the conveyor 146, and the containers 101 are transferred to the next process in a line state by the line conveyor 147. A return conveyor 148 is a device for returning the empty pallet 102 from which the containers 101 have been removed to the container arranging device 108.

[Problems to be solved by the device]

In the conventional pallet type filling device as described above, if there is a problem in the process of supplying the container 101 to the pallet 102,
The number of containers 101 on the pallet 102 may be insufficient. In this apparatus, since there is no means for stopping the filling of the pallet 102 with the container in which the solution is not filled, there is a possibility that the solution may be filled in the pocket without the container and may be dripped. In order to prevent this, there are cases where the presence or absence of a container on the pallet is detected in advance and each valve for filling the solution is individually controlled, but the presence or absence of this container is detected before the solution filling device. A large number of sensors corresponding to all the upper pockets are arranged, which is inconvenient in handling and maintenance of the device.

[Means for solving the problem]

The pallet type filling device according to the present invention is intended to solve the above-mentioned problems, and a plurality of containers are continuously conveyed by a conveying device while being placed on a pallet in a plurality of rows in the pallet traveling direction. In a pallet-type filling device that continuously performs steps, a photoelectric switch for detecting the presence or absence of the container, which is provided in each row of the containers in the pallet advancing direction before each step, and an array in the pallet advancing direction are provided. A position detector that outputs a synchronization signal in accordance with the pitch and specifies the position of the container in the pallet advancing direction detected by the photoelectric switch, and each of the downstream steps based on signals from the sensor and the position detector. And a control device for controlling the.

[Action]

That is, in the pallet type filling device according to the present invention,
The number of columns on the pallet is determined by the signal from the photoelectric switch that detects the presence or absence of a container in each row of the pallet in the pallet traveling direction and the signal from the position detector that identifies the position of the container in the pallet traveling direction. It is designed so that it is possible to know the number of the container in which the container is present or absent, and based on this, the downstream process is controlled by the control device. While the filling is stopped, the presence or absence of the container can be detected by a small number of sensors which correspond to the number of rows of the containers on the pallet in the pallet traveling direction.

〔Example〕

1 and 2 are structural explanatory views of a pallet type filling apparatus according to an embodiment of the present invention, and FIGS. 3 and 4 are operational explanatory views thereof. As shown in FIG. 1 and FIG. 2, the pallet type filling apparatus according to the present embodiment shows that the pallet 92 is filled with the solution so that the pocket on the pallet 92 without the container 91 is not filled with the solution. Between the step of inserting the container 91 into the container 92 and the step of filling the container 91 with the solution, the container 91
One photoelectric switch 1 is provided for each row of containers 91 in the traveling direction of the pallet 92 as a sensor for detecting the presence or absence of the pallet 92, and the pallet transport device is provided with a position corresponding to the position of the containers 91 in the traveling direction of the pallet 92. A position detector 2 for outputting is provided so that it is possible to know in which column on the pallet 92 the column 91 is located or not, and based on this, the solution filling device is controlled by the control device 93. I have to.

That is, the photoelectric switch 1 shown in FIG. 1 is installed above the pallet 92 in which the container 91 is inserted, and four photoelectric switches 1a corresponding to the number of pockets arranged in the width direction of the pallet 92 are provided.
~ 1d is located. The position detector 2 is attached to a pallet conveying device (not shown), and the drive system is set so that the position detector 2 makes one rotation while the pallet 92 advances one pitch between the processes. When the signals from the photoelectric switches 1a to 1d and the position detector 2 are input, the container detection device 2 outputs the control conditions of the valve of the solution filling device (not shown) to the control device 93, and 10a shown in FIG. -40d AND circuit and 50a-80d shift register. The outputs of the shift registers 50a-80d are connected to the control device 93. Further, 94 shown in FIG. 1 is a container supply conveyor, 95 is a container discharge conveyor, and 96 is an empty pallet return conveyor. Further, B is a supply station for inserting the container 91 into the pallet 92, C is a filling station for filling the container 91 with a solution, D is a capping station for capping the container 91, and E is an inspection station for inspecting foreign matters in the container 91. , F are extraction stations for extracting the container 91 from the pallet 92, and each station is controlled by the control device 93.

Container supplied from the container supply conveyor 94 shown in FIG.
91 is inserted into the pallet 92 at the supply station B and sent to the filling station C. The photoelectric switches 1a to 1d detect the head of the container 91 in the middle thereof and send a signal indicating the presence or absence of the container 91 in the pallet 92 to the container detection device 93. Further, as the pallet 92 moves, the position detector 2 outputs a synchronization signal shown in FIG. 3 that matches the arrangement pitch of the containers 91 in the traveling direction of the pallet 92. That is, if the output state of the photoelectric switches 1a to 1d is H when the cam 1 of the position detector 2 shown in FIG.
The circuits 10a, 20a, 30a, 40a are activated to set the signal with container to the shift registers 50a, 60a, 70a, 80a. Next, if the output state of the photoelectric switches 1a to 1d is H when the cam 2 is turned on and the synchronizing signal of the second column is output, the AND circuits 10b, 20b, 30
b, 40b actuate and the signal of container presence shift register 50b, 6
It is set to 0b, 70b, 80b. Similarly, if there is a container 91 in the third and fourth columns, a signal indicating that a container is present is set in each corresponding shift register. The respective shift registers 50a-80d and the respective containers 91 on the pallet 92 correspond as shown in FIG.

The cam 5 is activated immediately before the pallet 92 reaches the home position of the filling device at the filling station C. The cam 5 is a shift signal, and the cam 5 outputs a signal indicating the presence or absence of a container from each shift register to the control device 93. The control device 93 controls the valve of the corresponding filling device based on the signal indicating the presence / absence of the container 91, and fills the solution vessel 91 with the solution in the case of the signal with the container, and does not fill it with the signal without the container.
In the next capping station D as well, capping is performed by the same action as in the filling station C. In the next inspection station E, the foreign matter in the container 91 is inspected, and the defective container 91 is not extracted in the extraction station F for extracting the container 91 from the next pallet 92, but remains inserted in the pallet 92. It is sent by the return conveyor 96 and is withdrawn on the way.

In this way, in this apparatus, the number of sensors for detecting the presence / absence of the container 91 is reduced, and by increasing the shift number, it becomes possible to send the information regarding the presence / absence of the container 91 to a further downstream process. By using the position detector 2, it is possible to easily change the generation timing of the synchronization signal, and the detection accuracy is improved.

The pallet-type filling device according to the present invention is not limited to the above-mentioned embodiment, and can be applied to filling of liquids, powders, granules, solids, etc. other than solutions.

[Effect of device]

The pallet-type filling device according to the present invention is configured as described above, and since the filling of the object to be filled is stopped in the pocket of the pallet without the container, it is possible to prevent the object to be drained and to prevent the pallet from filling up. Since the presence or absence of the container can be detected by a small number of sensors corresponding to the number of rows of the container in the pallet advancing direction, handling and maintenance of the present device are facilitated.

[Brief description of drawings]

FIG. 1 (a) is a plan view of a pallet type filling apparatus according to an embodiment of the present invention, and FIG. 1 (b) is a bb line in FIG. 1 (a).
FIG. 2 is a block diagram thereof, FIG. 3 and FIG. 4 are explanatory views of their operation, FIG. 5 is a plan view of a conventional pallet type filling device, and FIGS. Part detail drawing, No.
FIG. 11 is an explanatory view of these actions. 1,1a, 1b, 1c, 1d ... Photoelectric switch, 2 ... Position detector,
3 ... Container detection device, 91 ... Container, 92 ... Pallet, 93
...... Control device, 94 …… Container supply conveyor, 95 …… Container discharge conveyor, 96 …… Return conveyor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-218096 (JP, A) JP-A-63-317494 (JP, A) Jitsuko Sho-51-51246 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A pallet-type filling apparatus for continuously carrying a plurality of containers on a pallet in a plurality of rows in the pallet advancing direction by a carrying device to continuously carry out each step of the container. Before the process, one photoelectric switch is provided in each row of the containers in the pallet advancing direction to detect the presence or absence of the container, and a sync signal is output according to the arrangement pitch in the pallet advancing direction to detect the photoelectric switch. A pallet comprising a position detector that specifies the position of the container in the pallet advancing direction, and a control device that controls each of the downstream processes based on signals from the sensor and the position detector. Filling device.