JPH05307658A - Packaging machine for dividedly counting different kind of works - Google Patents

Abstract

PURPOSE:To make it possible to easily extract and use only necessary works by controlling the opening of a pool shutter pooling the prescribed number of works out of unopened pool shutters based upon the storage value of a storage means. CONSTITUTION:Whether plural counting completion signals are outputted from a comparator or not is judged, and when plural counting completing signals exist, a pool shutter having the highest priority order previously determined out of pool shutters having '0' flags is selected. If only one counting completion signal exists, the pool shutter completing its counting is selected as it is. The flug of the selected pool shutter is set up to '1' and opened, works are ejected to a packaging machine 6, the machine 6 is driven to start the packing of the works ejected from the shutter, and the shutter held at an opening state is closed. After completing counting, a feeder held at a stopped state is redriven to feed works and the counting of works by passage detecting sensors 2a to 2c is restarted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heterogeneous work counting / dividing and packaging machine, and more particularly to a heterogeneous work counting / dividing / wrapping machine for dividing the workpieces counted for each type into a bag.

[0002]

2. Description of the Related Art Bolts, nuts and washers are generally combined and packaged for their purposes. Conventionally, such packing of two or more kinds of work is carried out by, for example, a feeder for supplying a bolt, a feeder for supplying a nut, a feeder for supplying a washer, a work counting means provided at an outlet of each feeder, and a work bag. This is done by an apparatus equipped with a packing means for packing.

[0003]

However, according to the above apparatus, the workpieces counted by type, such as bolts,
Since the nuts and washers are packed together in the same bag, there is a problem that it is troublesome to take out and use only the necessary work from the bag in which many kinds of works are mixed. This becomes a more serious problem as the number of types of work increases.

In view of the above problems, the present invention provides a different work counting / dividing and packaging machine which can easily take out and use only necessary works counted for every predetermined number even when there are many kinds of works. With the goal.

[0005]

In order to solve the above problems, the present invention provides a plurality of feeders for supplying works by type, a counting means for counting the works supplied from each feeder for each kind, and the above counting. Pool shutters for pooling the works counted by the means for each type; storage means for detecting and storing that each pool shutter has been opened once;
Inside the pool shutter that has not been opened based on the stored value of the storing means when a packaging completion signal is issued from the packaging means and the packaging means that divides the work discharged by the opening of each pool shutter for each type. From the determination means to determine the pool shutter pooling a predetermined number of work from,
When the determination means determines that the pool shutter pooling a predetermined number of works is single, the pool shutter is controlled to be opened, and when it is determined to be a plurality, one of the pool shutters is controlled to be opened. It is characterized by comprising means and reset means for resetting the stored value of the storage means when one type of divided packaging for each type of work is completed for all types.

Further, the present invention is characterized by comprising a cutter device which is driven when one type of divided packaging for each type of work is completed for all types.

[0007]

According to the first configuration, when the packing of the predetermined number of works in the packaging means is completed, the predetermined number of works are pooled from the unopened pool shutters based on the stored value of the storage means. Since the opening of the pool shutter is controlled, the same type of work is not packaged until the divided packaging for each type of work is completed for all types. Therefore, unlike the conventional case, many kinds of works are not mixed and packed into a bag, so that only the necessary works can be easily taken out from the works counted for each predetermined number and used.

Further, according to the above-mentioned second structure, it is possible to cut one set of work pieces separately packaged for all types. Therefore, when using a combination of works such as bolts, nuts and washers, these works can be carried as one set, which is very convenient.

[0009]

1 is a schematic perspective view of a different work counting and dividing packaging machine according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view thereof. A parts feeder 1a for supplying a bolt A and a nut B are supplied. Parts feeder 1b, parts feeder 1c for supplying washer C, and these parts feeder 1
The passage detection sensors 2a, 2b, 2c, which are provided near the outlets of a, 1b, 1c, and count the workpieces supplied from the parts feeders 1a, 1b, 1c, and the passage detection sensors 2a, 2b, 2c, are counted. Pool shutters 3a, 3b, 3c for pooling workpieces, limit switches 4a, 4b, 4c for detecting whether each pool shutter 3a, 3b, 3c is opened, and pool shutters 3a, 3c
The parts feeders 1a, 1b, 1c, etc. are composed of a hopper 5 into which the workpieces discharged by opening b3c are dropped, and a packaging machine 6 for packing the workpieces falling from the hopper 5. It is supported by the machine base 10.

FIG. 3 is a plan view (partial cross section) of the passage detecting sensor 2a, which is composed of a light source 21 and an image sensor 22 which are provided so as to sandwich the falling area of the bolt A. The light is blocked by the bolts A supplied from the parts feeder 1a, and the number of the bolts A is counted based on the number of dark areas where light does not enter the image sensor 22. A shutter (not shown) is provided near the exit of the passage detection sensor 2a, and the shutter is closed after the counting of the bolts A is completed, and a predetermined number or more of the bolts A are discharged to the pool shutter 3a. To be prevented. The other passage detection sensors 2b and 2c have the same configuration.

FIG. 4 is an explanatory view showing a bag packing operation by the packing machine. First, when the bolts A are gathered in the film F through the opening of the film F provided at the drop opening of the hopper 5, the packaging machines 6a and 6b located on both the left and right sides of the film F both move in the direction of the film F. (Indicated by a broken line in the figure). Then, the opening of the film F is welded by the heat of the heater 61 provided in the packaging machine 6a, whereby the bag A is completely packaged. here,
As shown in the figure, washer C, nut B, and bolt A
When the bag filling is completed for all the three types of works, the cutter blade 62 provided in the packaging machine 6a is driven to cut the film F. The cutter blade 62 is configured to be driven when one type of divided packaging for each type of work is completed for all types, so that the nut A, the bolt B,
When used in combination, such as the washer C, these works can be carried as one set, which is very convenient.

FIG. 5 is a block diagram showing a schematic structure of the above-mentioned different work counting / dividing packaging machine, and each passage detecting sensor 2a.
・ Counter 7 that displays the number of workpieces counted in 2b and 2c
a, 7b, 7c, a numeric keypad 8 for setting a count value for each type of work, and a comparison between the set value of the numeric keypad 8 and the count value of each passage detection sensor 2a, 2b, 2c are compared. It is mainly composed of comparators C1, C2, C3 and a control unit 9.

The counters 7a, 7b and 7c are set by the numeric keypad 8 and the passage detecting sensors 2a, 2b and 2 respectively.
When the count value of c matches, it is reset and the counting is newly started from 1. The control unit 9 controls the count completion signals a, b, c issued from the comparators C1, C2, C3, the packaging completion signal issued by the packaging machine 6, and the pools issued by the limit switches 4a, 4b, 4c. The shutter opening detection signals a, b, c are input, the pool shutter opening signals a, b, c for the pool shutters 3a, 3b, 3c, and the parts feeder driving signal a, for the parts feeders 1a, 1b, 1c. b
c and a packaging machine drive signal to the packaging machine 6. The control unit 9 has a flag 9a that detects and stores that each of the pool shutters 3a, 3b, and 3c has been opened once.

The operation of the different work counting / dividing / wrapping machine having the above construction will be described below with reference to the flow chart shown in FIG. First, in # 1, each parts feeder 1
When parts feeder drive signals a, b, and c are issued to a, 1b, and 1c, supply of bolts A, nuts B, and washers C is started, and passages provided near the exits of the respective parts feeders 1a, 1b, and 1c The detection sensors 2a, 2b, 2c start counting for each type of work.

When the counting completion signal from the comparator is confirmed in # 2, it is determined whether or not there are a plurality of such signals (# 3). If there are a plurality of counting completion signals in # 3, a pool shutter having a predetermined high priority is selected from the pool shutters having a flag of 0 (# 4). On the other hand, if there is only one counting completion signal in # 3, the pool shutter for which the counting is completed is selected as it is (# 5).

Next, the flag of the pool shutter selected in # 4 and # 5 is set to 1 (# 6), the pool shutter is opened, and the work is discharged to the packaging machine 6. In # 7, the wrapping machine 6 is driven to start bagging of the work discharged from the pool shutter, and the pool shutter in the opened state is closed. In # 8, after the counting is completed, the feeder in the stopped state is re-driven to supply the work, and the counting of the work by the passage detection sensor is restarted.

In # 9, when the bagging is completed and the packaging completion signal is issued from the comparator, it is determined whether or not the flag of 0 exists (# 10). When the flag of 0 exists in # 10, the process returns to # 2 and a series of operations are repeated. On the other hand, if it is confirmed that the flag of 0 does not exist (that is, bagging for all types of work is completed),
The cutter device is driven to cut the film F (# 1
1), set all flags to 0. In this way
The packing of the bolt A, the nut B, and the washer C is completed.

In the above embodiment, the parts feeder is used to supply the work, but the present invention is not limited to this, and it is also possible to use a straight feeder, for example.

[0019]

According to the present invention, when the packing of the predetermined number of works in the packaging means is completed, the predetermined number of works are pooled from the unopened pool shutters based on the stored value of the storage means. Since the opening of the pool shutter is controlled, the same type of work is not packaged until the divided packaging for each type of work is completed for all types. Therefore, unlike the conventional case, since many kinds of works are not mixed and packed in a bag, it is possible to easily take out and use only necessary works from the works counted for each predetermined number. Play.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a different work counting and dividing packaging machine according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of the different work counting and dividing packaging machine according to the embodiment of the present invention.

FIG. 3 is a plan view (partial cross section) showing a configuration of a passage detection sensor according to the different work counting and dividing packaging machine of FIG.

FIG. 4 is an explanatory view showing a bag packing operation of the packaging machine according to the different work counting / dividing packaging machine of FIG. 1.

FIG. 5 is a block diagram showing a schematic configuration of a different work counting and dividing packaging machine according to an embodiment of the present invention.

FIG. 6 is a flowchart showing an operation of the different work counting / dividing and packaging machine according to the embodiment of the present invention.

[Explanation of symbols]

 1a, 1b, 1c Parts feeder 2a, 2b, 2c Passage detection sensor 3a, 3b, 3c Pool shutter 4a, 4b, 4c Limit switch 6 Packaging machine 9 CPU

Claims (2)

[Claims] 1. A plurality of feeders for supplying works by type, a counting unit for counting the works supplied from each feeder for each type, and a pool shutter for pooling the works counted by the counting unit for each type. Storage means for detecting and storing that each pool shutter has been opened once, wrapping means for wrapping the work discharged by opening of each pool shutter by type, and wrapping from the wrapping means When a signal is issued, a determination unit that determines a pool shutter that pools a predetermined number of works from the pool shutters that have not been opened based on the stored value of the storage unit, and a predetermined number of works that are pooled by the determination unit. If it is determined that there is a single pool shutter, the pool shutter is controlled to open, and if it is determined that there are multiple pool shutters, one of the pool shutters is controlled. Different work counting division, which is provided with a control means for controlling the opening of the cutter and a reset means for resetting the stored value of the storage means when the divided packaging for each type of work is completed once for all types. Wrapping machine. 2. The heterogeneous work counting division packaging machine according to claim 1, further comprising a cutter device which is driven when one type of division packaging for each type of work is completed for all types.