JPH11108745A - Article holding means transfer device for combination balance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely transfer a desired article holding means on a standby side carrying means to a receiving means side by providing a bulging-out preventing means. SOLUTION: By providing a bulging-out preventing means 5, a guide 1 is moved to a regulating position for regulating the bulging-out of a cup 20 from a stay conveyor 3 or a non-regulating position for allowing a pusher 84 to transfer the cup 20 on the stay conveyor 3 to a carrier conveyor 4, and a position is changed. Thus, even if any accident occurs on the stay conveyor 3, the cup 20 is surely regulated by the guide 1 located in the regulating position for regulating the bulging-out of the same from the stay conveyor 3. Therefore, for example, the cup 20 housing an article not selected for combination is prevented from being transferred to the carrier conveyor 4 side, and thus a reduction in combination measuring accuracy is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination weigher for weighing and transporting an article to be weighed having adhesiveness or stickiness, such as cut vegetables, pickles, and skewer, in an article holding means. The present invention relates to a transfer device of an article holding unit in a combination weigher that transfers an article holding unit on a standby-side conveying unit to a receiving unit.

[0002]

2. Description of the Related Art An example of the combination weigher will be described with reference to FIG. The combination weigher sequentially transports empty cups 20 into which objects to be weighed (hereinafter, referred to as “articles”) 21 have not been introduced to an introduction stage 61, and throws the articles 21 into these cups 20 on the introduction stage 61. And this cup 20
And the total weight of the articles 21 loaded therein are weighed by four measuring instruments 62 (62-1 to 62-4), respectively, and the weight of the cup 20 is determined from the total weight of the cup 20 and the articles 21. The weight of the article 21 is calculated by subtraction. Then, a large number of cups 20 containing these weighed articles 21 are retained on the retention conveyor 63, and the weight values of the respective articles 21 obtained by the above calculation are variously combined, and the total weight of the combinations is calculated. The combination calculating means selects the articles 21 constituting a set whose value is within a predetermined weight range,
The cup 20 into which the articles 21 constituting the set selected by the combination calculating means are loaded is transported onto the conveyor 64, and the articles 21 are ejected from the cup 20 to a discharge position 88 (see FIG. 3). Selected cup 2
0 is conveyed and the empty cup 20 from which the article 21 has been discharged is conveyed to the input stage 61 in order. The article 2 discharged at the discharge position 88 is
The total weight is within a predetermined weight range, and is supplied to the packaging machine 89 for packaging.

[0003] Among the plurality of cups 20 which are arranged in a row in a state of being pressed and contacted with each other on the staying conveyor 63,
A conventional cup transfer device for transferring the cups 20 containing the articles 21 selected in the combination onto the transport conveyor 64 is shown in a sectional view of FIG. This cup transfer device includes a stagnant conveyor 63, a transport conveyor 64, a pusher 84 (84-1, to 84-10), and a guide 79. The stay conveyor 63 is provided with two annular plastic chains 74, 74. Each end of each of the plastic chains 74, 74 is a sprocket 7
Multiplied by 5,75. When the motors (not shown) rotationally drive the sprockets 75, 75, the plastic chains 74, 74 can travel in a predetermined direction to convey the cup 20 on the plastic chains 74, 74. In addition, since the staying conveyor 63 is constantly driven to rotate, and the conveying surfaces 82 of the plastic chains 74, 74 are formed on a surface having a small frictional resistance, the plurality of cups 20 on the staying conveyor 63 come into contact with each other. The cups 20 are aligned in a line in a pressing state, and the leading cup 20 contacts the stopper 70 and stops. Further, the transport conveyor 64 is equivalent to the stay conveyor 63.
According to this cup transfer device, the stagnant conveyor 63 is always driven to rotate, and the cups 20 containing the weighed articles 21 can be held in contact with each other in a line in a pressed state. When the combination calculation is completed, as shown in FIG. 8, the pusher 84 corresponding to the cup 20 accommodating the article 21 selected in the combination.
-2, 84-5, 84-8, 84-10,
The cup 20 on the stagnation conveyor 63 is placed on the upper surface 8 of the guide 79
1 and can be transferred onto the conveyor 64. That is, the guide 79 can regulate the cups 20 on the stagnant conveyor 63 so that the cups 20 on the stagnant conveyor 63 do not protrude onto the transport conveyor 64 when the cups 20 on the stagnant conveyor 63 are aligned in a single row. Is moved to the cup 20 on the stagnation conveyor 63.
Are formed at a height H that allows them to get over the upper surface 81 of the guide 79.

[0004]

However, in the conventional cup transfer device shown in FIG. 7, when the cups 20 on the stagnant conveyor 63 are aligned in a line, the cups 20 on the stagnant conveyor 63 move in the conveying direction. The pressing force may protrude onto the conveyor 64. When the cup 20 protrudes onto the transport conveyor 64, the articles 21 not selected for the combination are packaged, and the measurement accuracy of the combination is reduced. The reason why the cup 20 protrudes from the staying conveyor 63 is, for example, that the height of the bottom surface of the cup 20 approaches the upper surface 81 of the guide 79 when the article (object to be weighed) 21 adheres to the transport surface 82 of the staying conveyor 63. This makes it impossible to restrict the cup 20 by the guide 79 so that the cup 20 does not protrude. After the cup 20 selected for the combination is transferred from the staying conveyor 63 onto the transport conveyor 64, the subsequent Each of the cups 20 is conveyed forward, and a large impact occurs when the cup 20 collides with the cup 20 in front of the cup 20.
Etc.

Therefore, it is conceivable to increase the height H of the upper surface 81 of the guide 79. However, if the height H of the upper surface 81 is increased, the cup 20 on the staying conveyor 63 may be transferred to the transport conveyor 64 side. There are things you can't do.

According to the present invention, in a combination weigher for combining and weighing articles having adhesiveness or tackiness, a desired article holding means on a standby-side transport means can be reliably transferred to a receiving means side when necessary. An object of the present invention is to provide a transfer device of an article holding unit.

[0007]

According to a first aspect of the present invention, there is provided a transfer device for an article holding means in a combination weigher, wherein an article is put into the article holding means while the article holding means is being conveyed along a conveying path. The total weight of the article holding means and the articles put in the article holding means, or the weight of the articles put in the state where the articles are put in the article holding means, is weighed by the weighing means, In the combination weigher in which the combination calculating means selects the articles constituting the set whose total weight value is within a predetermined weight range by joining the respective weight values obtained by weighing in the combination calculation, A standby-side transport unit for keeping the adjacent items in contact with each other in a row with the article holding units in a row, and the article-holding unit transferred from the standby-side transport unit. Receiving means, a transfer means for transferring the article holding means on the standby-side transport means onto the receiving means, and a guide, wherein the article holding means does not protrude from the standby-side transport means. Extrusion prevention means for moving the article holding means on the standby-side conveyance means to a non-regulation position in which the transfer means can be transferred onto the receiving means, and
It is characterized by having.

According to a second aspect of the present invention, in the transfer device of the article holding means in the combination weigher according to the first aspect of the present invention, the protrusion preventing means is actuated by pressurized fluid to move the guide between the regulated position and the non-regulated position. A first actuator to be moved; and a valve to supply and operate the first actuator with a pressurized fluid, wherein the transfer means is operated by the pressurized fluid and causes the article holding means on the standby transport means to move the article holding means. A second actuator for transferring to the receiving means and a pilot pressure applied from the valve when the valve switches so that the guide moves to the non-regulated position, and the second actuator switches the article. A pilot operated switching valve for supplying a pressure fluid to the second actuator so as to transfer the holding means. It is.

A third aspect of the present invention is a speed control valve for controlling the switching speed of the pilot operation switching valve in the passage of the pilot pressure of the pilot operation switching valve in the transfer device of the article holding means in the combination weigher of the second invention. Is provided.

According to the combination weigher to which the transfer device of the article holding means according to the present invention is applied, an article is put into the article holding means while the article holding means is being conveyed along the conveying path, and the article holding means is connected to the article holding means. The total weight of the articles put in the article holding means, or the weight of the articles put in the state where the articles are put in the article holding means, was weighed by the weighing means and obtained by weighing by the weighing means. Each weight value is allowed to participate in the combination calculation, and the combination calculation means can select the articles constituting the set whose total weight value is within a predetermined weight range.

According to the transfer device of the article holding means in the combination weigher according to the present invention, the guide is restricted when the article holding means are standing by on the standby-side transport means in a state of contacting each other in a line. Position, which allows
The article holding means can be regulated so as not to protrude from the standby-side transport means onto the receiving means, and when the transfer means transfers the article-holding means on the standby-side transport means onto the receiving means, the guide is not regulated. Then, the article holding means on the standby-side transport means can be transferred to the receiving means.

According to the second aspect, when the valve is switched to a predetermined side, the first fluid is supplied by the pressure fluid supplied from the valve.
Actuates the guide to move the guide from the regulated position to the unregulated position, and when the valve switches, the valve supplies pressure fluid to the pilot operated switching valve to increase pilot pressure. In addition,
The pilot operated switching valve supplies the pressure fluid to the second actuator, and the second actuator operates to transfer the article holding means on the standby transport means to the receiving means. The first actuator is operated by the pressurized fluid supplied from the valve, while the second actuator is switched by the pressurized fluid supplied from the valve to the pilot operation switching valve. Since the operation is performed by the pressure fluid supplied from the operation switching valve, the timing at which the second actuator operates can be delayed from the timing at which the first actuator operates.

According to the third aspect, the switching speed of the pilot operation switching valve can be controlled by the speed control valve.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment in which a transfer device (hereinafter simply referred to as a "transfer device") for article holding means in a combination weigher according to the present invention is applied to the combination weigher shown in FIG. This will be described with reference to FIG. The difference between the transfer device of this embodiment shown in FIGS. 1 and 2 and the conventional transfer device shown in FIG. 7 is that the conventional transfer device shown in FIG. 7 is fixed to a main body 76 via a guide frame 78. Guide 79
However, the cup 20 on the staying conveyor 63 is
In addition to the configuration in which the cup 20 moves over the guide 79 when the cup 20 on the stagnant conveyor 63 is transferred onto the transport conveyor 64, as shown in FIG. The transfer device of this embodiment shown in FIG. 2 and FIG. 2 is provided with protrusion prevention means 5 having the guide 1 shown in FIG. 1 (including the electromagnetically operated valve 13 of the air circuit 2), and this guide 1 is shown in FIG. Cup 2 on staying conveyor (standby side transport means) 3 at the ascending position (regulation position)
When the pusher (transfer means) 84 transfers the cup 20 on the stagnant conveyor 3 onto the transfer conveyor 4, the guide 1 is moved to the position shown in FIG. Is moved to the lowering position (unregulated position) shown in FIG.

As shown in the plan view of FIG. 3, the combination weigher of this embodiment has an input stage 6 for an operator to input an article 21 into an empty cylindrical cup (article holding means) 20.
One and four scales 62 (62-1, 62-2, 62-
3, 62-4), staying conveyor 3, and transporting conveyor 4
, A discharge device 65, and a transfer conveyor 66. And these loading stages 61 and four measuring devices 6
2 (62-1, 62-2, 62-3, 62-4),.
, Etc. are such that a large number of cups 20 can be conveyed clockwise on this combination weigher as indicated by the arrows in FIG. According to this combination weigher, these cups 20
During the transport, the worker puts (fills) each of the articles 21 to be weighed having adhesiveness or tackiness into the cups 20 such as cut vegetables, pickles, musculars, etc. Each of the measuring devices 62 of the table weighs and transports the cups 20 containing the articles 21 selected in combination from the weighed articles 21 to a predetermined discharge position 88, and
By discharging the articles from 0, the combination weighing of articles whose total weight is within a predetermined weight range is performed. In addition, an operator newly throws in the article 21 into the empty cup 20, and repeats the above-mentioned measurement. The total weight of the articles 2 discharged at the discharge position 88 is within a predetermined weight range.
It is supplied to the packaging machine 89 and packaged. In addition, each cup 2
0 is formed to have the same weight.

Next, a transfer device according to the present invention will be described. This transfer device includes the stagnation conveyor 3, a protrusion prevention unit, a pusher 84, and the transport conveyor 4.

The staying conveyor 3 is a standby-side conveying means described in the claims. As shown in FIG. 3, the staying conveyor 3 is a linear conveyor, and receives the cups 20 containing the articles 21 weighed by the weighing devices 62 from the weighing devices 62 and conveys the cups 20 to the left in FIG. Things. A stopper 73 is provided at the left end portion, and the cup 20 can be locked by the stopper 73. As shown in the sectional view of FIG. 1, the staying conveyor 3 includes an annular plastic chain (top chain) 6 having a conveying surface, and the plastic chain 6 is provided with two sprockets (in FIG. The sprocket 7 is shown.) The sprocket 7 is connected to a rotating shaft of a motor (not shown), and the plastic chain 6 is driven in a predetermined direction by rotating the motor.

Reference numeral 8 shown in FIG. 1 denotes a main body of the staying conveyor 3. The main body 8 is fixed to a gantry 77 shown in FIG. 3, and is formed so that the plastic chain 6 runs on the upper surface of the main body 8.

As shown in FIG. 1, first to tenth pushers 84 (84-1 to 84-10) (second actuators) are provided on the right side in the conveying direction of the staying conveyor 3. Yes (see FIG. 3), a pad 85 (85-1 to 85-1) provided at the tip of the piston rod of each pusher 84.
85-10), the cup 20 on the stagnation conveyor 3
Can be restricted so as not to protrude to the pusher 84 side. That is, the stagnant conveyor 3 is constantly driven to rotate by the motor, and each cup 20 on the stagnant conveyor 3 is conveyed to the stopper 73 side. The cups 20 are arranged in a line in a state of contacting and pressing, and each cup 20 stops at that position. However, staying conveyor 3
Is constantly driven for conveyance, so that the stagnant conveyor 3
The cups 20 lined up in one row try to protrude to the left or right in the direction of travel, but the pads 85-1 to 85-1
85-10 and a protrusion prevention means 5 (5-1 to 5-1) described later.
The guide 1 (1-1 to 1-10) of 5-10) can regulate the cup 20 so as not to protrude outside the staying conveyor 3. Note that, as shown in FIG.
A guide 112 is also provided at the subsequent stage of the pusher 84-10.

First to tenth pushers 84-1 to 8-8
Reference numeral 4-10 constitutes a transfer means (a transfer means described in the claims) for transferring a desired cup 20 on the stagnation conveyor 3 onto the transport conveyor 4. These first to tenth
Each of the pushers 84-1 to 84-10 is formed of an air cylinder as shown in FIG.
Numerals 4 are arranged at intervals of the same length as the diameter of the cup 20. That is, as shown in FIG. 3, the twelve cups 20 are arranged in a line on the stagnation conveyor 3 and correspond to the first to tenth cups 20 corresponding to the first ten cups 20, respectively.
Of each pusher 84-1 to 84-10 are provided.

The conveyor 4 is a receiving means described in the claims. As shown in FIG. 1, this is a plastic chain conveyor equivalent to the stay conveyor 3. A guide 90 is provided on the left side of the conveyor 4 so that the cup 20 pushed out of the stagnation conveyor 3 to the conveyor 4 does not fall from the conveyor 4. The transport surface of the transport conveyor 4 is slightly lower than the transport surface of the stay conveyor 3. As shown in FIG. 3, a stopper cylinder 113 is provided at the entrance of the discharge device 65 of the conveyor 4. This stopper cylinder 11
3 switches between the extended state and the contracted state at a predetermined timing, whereby the cups 20 selected as a combination can be sequentially sent to the discharge device 65 for each set. When the stopper cylinder 113 is in the extended state and the selected cups 20 are stopped on the conveyor 4, the cups 20 are connected to the guide 90 and the guide 1 (1-1).
1-10), the cups 20 are restricted from both sides so as not to protrude from the conveyor 4, so that the cups 20 can be aligned and stopped on the conveyor 4.

Extrusion prevention means 5 (5-1 to 5-10)
Are ten guides 1 (1-1 to 1-10) and a guide cylinder 9 (9-1 to 9-1) for driving each guide 1 up and down.
0) (first actuator), the solenoid operated valve 13,
As shown in FIGS. 1 and 3, they are provided in a line between the stay conveyor 3 and the transport conveyor 4.
Ten guides 1 (1-1 to 1-10) (1 in FIG. 1)
The guides 1) are rectangular plate-like bodies, each having the same shape. As shown in FIGS. 3 and 4, the width of the guide 1 is formed to be slightly smaller than the outer diameter of the cup, and the adjacent ones are arranged with a gap therebetween. Each of the guides 1 is disposed in front of the corresponding cup 10 in the extending direction, and moves downward when the corresponding pusher 84 performs the extending operation, and moves from the restricted position shown in FIG. 1 to the non-restricted state shown in FIG. It is provided so that the cup 10 can be moved to the position and the cup 10 can be transferred from the staying conveyor 3 to the transport conveyor 4 in an upright state.
Each of the ten guides 1,... Is vertically stood and the lower end is fastened and fixed to a head fitting 11 by a bolt 10. Each of the head fittings 11 corresponds to a corresponding one of the ten guide cylinders 9. It is provided at the tip of the piston rod.

Each of the guides 1 is individually driven to move up and down by each guide cylinder 9 provided correspondingly. FIG. 1 is a cross-sectional view showing a state in which the guide 1 moves upward to move to the regulating position and the pusher 84 shortens. In this state, the cups 20,... In the pressed state on the stagnation conveyor 3 are the guides 1 (1-1 to 1-1).
-10) and the pads 85-1 to 85-1 of the pusher 84
Since the protrusion is regulated by 0, it does not protrude from the staying conveyor 3. FIG. 2 shows guide 1
Is a cross-sectional view showing a state in which the cup moves down to the non-restricted position, and then the corresponding pusher 84 extends to move the cup 20 onto the transport conveyor 4.

Next, the air circuit 2 (2-1 to 2-10)
Will be described. The air circuit 2 is provided with 10 sets as shown in FIG. In other words, each air circuit 2 has a total of ten sets of guide cylinders and pushers (9-1, 84-1) to (9-1, 8-1), which are one set of one guide cylinder 9 and one pusher 84 shown in FIG. -10, 84-10). Since each of the ten sets of air circuits 2 is equivalent, only one set will be described. Each air circuit 2 includes one electromagnetically operated valve 13, one pilot operated switching valve 14, and one speed control valve 15. The solenoid operated valve 13 has an A port and a B port, and the A port and the B port are connected to the corresponding rooms A and B of the guide cylinder 9 via the connection pipes 16 and 17, respectively. Further, it is connected to a pilot port 19 of the pilot operation switching valve 14 via a speed control valve 15 and a connection pipe 18. This solenoid operated valve 13
Although not shown in the drawing, is switched at a predetermined timing by a transfer signal output from a central processing unit (CPU) of the combination weigher.

The pilot operation switching valve 14 has a C port and a D port. The C port and the D port correspond to the rooms C and D of the pusher 84 and the connection pipes 22 and 2 respectively.
3 are connected. The speed control valve 15 includes a variable throttle valve 24 and a check valve 25, can adjust the flow rate of the compressed air supplied from the B port to the pilot port 19, and is sent from the pilot port 19. The pressurized air can be exhausted. The pilot operation switching valve 14 and the speed control valve 15 are included in the transfer means. In addition, each P port shown in FIG. 1 is connected to a supply port of compressed air of an air compressor (not shown), and is supplied with compressed air. The R port is connected to an exhaust port (not shown).

Next, the operation of the above-configured transfer device will be described with reference to FIGS. In the state shown in FIG. 1, the position of the spool of the solenoid operated valve 13 has been switched to the position connecting the P port and the room A of the guide cylinder 9, and the guide 1 has risen to the restricted position. Then, the position of the spool of the pilot operation switching valve 14 is switched to a position connecting the P port and the room C of the pusher 84, and the pusher 84 is shortened and the pad 85 is moved to the retracted position. In this state, the cups 20 containing the articles 21 weighed by the four weighing devices 62 can be stored in a line on the staying conveyor 3.

Then, the combination operation is performed by the combination operation means described later, and when the cup 20 accommodating the article 21 whose total weight is within the predetermined weight range is selected by the combination operation means, the CPU is selected. Cup 20
A transfer signal is supplied to a transfer device via a transfer control circuit (not shown) so as to transfer from the stay conveyor 3 to the transport conveyor 4. That is, when a transfer signal is output from the CPU, the selected cup 20 and the corresponding electromagnetically operated valve 13
Is switched from the state shown in FIG. 1 to the state shown in FIG. That is, the solenoid operated valve 13 is switched to a position where the P port is connected to the room B of the guide cylinder 9, whereby the guide 1 moves down to the non-regulated position. At this time, the pressurized air flowing from the P port of the solenoid operated valve 13 flows into the pilot port 19 of the pilot operated switching valve 14 through the speed control valve 15 and the connection pipe 18 and the spool of the pilot operated switching valve 14 is The state is switched to the state shown in FIG. Then, the P of the pilot operation switching valve 14 is
The pressurized air flowing in from the port flows into the room D of the pusher 84 through the connection pipe 23, and the pusher 84 is extended, whereby the cup 20 on the stagnation conveyor 3 is pushed by the pad 85, and Is transferred to

However, the solenoid operated valve 13 shown in FIG.
Is switched, the guide cylinder 9 is actuated immediately by the pressurized air supplied from the P port of the solenoid operated valve 13 to lower the guide 1 to the non-regulated position. Has a function of controlling the switching speed of the spool to be delayed, so that the timing at which the pusher 84 extends and moves the corresponding cup 20 can be delayed by a desired time from the timing at which the guide cylinder 9 lowers the guide 1. it can. Thus, the cup 20 can be smoothly transferred onto the transport conveyor 4 without sandwiching the cup 20 between the guide 1 and the pad 85.

As described above, the cup 20 is transferred to the conveyor 4
When the transfer is performed upward, the transfer control circuit outputs a predetermined signal to the solenoid-operated valve 13 to move the spool of the solenoid-operated valve 13 as shown in FIG.
From the state shown in FIG. 1 to the state shown in FIG. As a result, the guide 1 rises and moves to the regulation position, and at substantially the same time, the pusher 84 shortens. The pusher 84 is shortened immediately because the pressurized air in the pilot port 19 is immediately exhausted through the check valve 25 and the pilot operation switching valve 14 is immediately switched. When the extended pusher 84 performs the shortening operation, the guide 1 and the pad 85 of the pusher 84 do not collide with each other, and the following cup 10 is inserted through the upper gap of the descending guide 1.
The guide 1 can be raised at the timing when the guide 1 does not protrude.

As described above, the guide 1 regulates the cup 20 so as not to protrude from the staying conveyor 3, and the pusher 84 transfers the cup 20 on the staying conveyor 3 onto the transport conveyor 4. And the position is changed by moving to the non-regulated position. For example, when a part of the article 21 adheres to the upper surface of the plastic chain 6 of the staying conveyor 3, the cup 20
The height position of the outer surface of the bottom with respect to the stagnation conveyor 3 may be changed, or the articles 21 selected for the combination may be changed.
Is transferred from the staying conveyor 3 onto the transport conveyor 4 and then the subsequent cups 20 on the staying conveyor 3 are transported forward and collide strongly with the respective front cups 20. However, the cup 1 can be reliably regulated by the guide 1 at the regulating position so that the cup 20 does not protrude from the stagnation conveyor 3 onto the rock layer conveyor 4. Thereby, for example, the cup 20 accommodating the articles 21 not selected as a combination does not move to the conveyor 4 side, and as a result, it is possible to prevent a decrease in the measurement accuracy of the combination.

The pusher 84 can be extended by slightly delaying the timing of the lowering operation of the guide 1 of the guide cylinder 9 by the time required for switching the pilot operation switching valve 14. Electric devices such as a relay and a timer for delaying the operation timing can be eliminated. In other words, when using electric devices such as solenoid operated valves, relays, and timers in combination weighers that require water washing, it is necessary to store those electric devices in a waterproof control box. Since the cost of waterproofing increases according to the number of electric devices, it is possible to provide a transfer device that is easy to wash with water, has a simple structure, and is inexpensive by reducing the number of electric devices. it can. In this embodiment, ten pilot operated switching valves 14 function as ten solenoid operated valves, ten relays, and ten timers.
The size of the control box that has been waterproofed can be reduced by the space of one electromagnetically operated valve, ten relays, and ten timers.

However, in the above embodiment, as shown in FIG.
0 is transferred to the conveyor 4, but other than this, the cup 20 on the standby-side transfer means may be used.
Is transferred to the receiving means. For example, in the combination weigher shown in FIG. 3, when the cups 20 (four in FIG. 1) accommodating the articles 21 constituting one combination accumulate at the end portion of the transport conveyor 4, the pusher 2
6, the pad 27 pushes the four cups 20 and transfers them to the inclined conveyor 91. The end of the conveyor 4 and the inclined conveyor 9 are moved.
The protrusion prevention means 5 of the above embodiment may be provided between the first inlet and the first inlet. In this transfer device, the transport conveyor 4 corresponds to the staying conveyor 3 shown in FIG. 1 of the above embodiment, the inclined conveyor 91 corresponds to the transport conveyor 4 shown in FIG. 1, and the guide 29 corresponds to the guide 1 shown in FIG. I do. Then, one set of the air circuit 2 is provided, and the width of the guide 29 is set to be substantially equal to the length of the four cups 20. Reference numeral 28 denotes a stopper. The operation of the transfer device including the air circuit 2 is the same as that of the above embodiment, and a detailed description thereof will be omitted.

Further, in the combination weigher shown in FIG. 1, when four cups 20 emptied by discharging the articles 21 accumulate in the end portion 69 of the transfer conveyor 66, the pusher 7 for empty cups
0 is extended, and the pad 71 pushes the four cups 20 to transfer the four cups 20 onto the fixed base 67 of the loading stage 61.
The protrusion prevention means 5 of the above-mentioned embodiment may be provided between 9 and the entrance of the fixed base 67. In this transfer apparatus, the transfer conveyor 66 corresponds to the staying conveyor 3 shown in FIG. 1 of the above embodiment, the fixed base 67 corresponds to the transport conveyor 4 shown in FIG. 1, and the guide 30 corresponds to the guide 1 shown in FIG. I do. Then, one set of the air circuit 2 is provided, and the width of the guide 30 is set to be substantially equal to the length of the four cups 20. Also, 31
Is a stopper. The operation of the transfer device including the air circuit 2 is the same as that of the above embodiment, and a detailed description thereof will be omitted.

In the above embodiment, as shown in FIG. 1, various weight values of the articles 21 put in the cup 20 on the staying conveyor 3 are variously combined so that the total weight is within the predetermined weight range. Although the transfer device according to the present invention is applied to a combination for selecting a cup 20 that accommodates a combination of articles 21, the present invention can be applied to other combination weighers.
For example, in the combination weigher shown in the plan view of FIG.
Is a product container in which the article 34 to be weighed is packed and sold. ) To supply an article 34 having a weight of about 70% to 90% of the target weight.
And five first weighing devices 36 (36-1, 36-2, 36-1) for weighing the weight of the article 34 supplied to each packaging container 33.
36-3, 36-4, 36-5) and the weighed article 3
Keep the packaging container 33 in which the container 4 is stored 5
First stagnation conveyor 37 (37-1, 37-2, 3
7-3, 37-4, 37-5) and a first take-out conveyor 39 for taking out the packaging container 33 selected for the combination from the first stagnation conveyor 37 and sending it out to the alignment conveyor 38. I have. Further, a second supply for the secondary supply operator 55 to supply each of the short cylindrical empty cups 46,... Having a bottom with an article 34 having a weight of about 10% to 30% of the target weight. Conveyor 42 and one second weighing device 43 for weighing articles 34 supplied to each cup 46
And each cup 46 containing the weighed article 34
And a cup 46 selected for the combination are stored in the second holding conveyor 44.
Pusher 41 for transferring from above onto circulation conveyor 45
(41-1 to 41-15) and supplied to the cup 46 on the circulating conveyor 45 paired with the packaging container 33 to the packaging container 33 selected as the combination and sent to the alignment conveyor 38. And an alignment conveyor 38 for an operator 42 to transfer the articles 34 that are present.

Next, the combination calculating means provided in the combination weigher will be described. This combination operation means
It comprises an arithmetic control unit configured by a central processing unit (CPU), and a predetermined program stored in a storage unit connected to the arithmetic control unit. The combination calculating means performs the first operation so that the weight of the article 34 supplied to one packaging container 33 and the weight of the article 34 supplied to one cup 46 constitute one combination.
And the weight values of the respective articles 34 obtained by weighing with the second weighers 36 and 43 are variously combined, and the total weight of the combinations is within a predetermined weight range set in advance with respect to the target weight. One packaging container 33 and one cup 46 containing the articles 34 corresponding to the weight values constituting the set
Is a means for selecting

When the combination calculating means selects the article 34 on the first staying conveyor 37-1 and the fourteenth article 34 from the top on the second staying conveyor 44 as shown in FIG. The packaging container 33 containing the articles 34 on the first stagnation conveyor 37-1 is transported by the first take-out conveyor 39 and the fourteenth pusher 41-
When moving forward of 14, the pusher 41-14 extends to transfer the fourteenth cup 46 on the second staying conveyor 44 onto the circulation conveyor 45. Thus, when the packaging container 33 accommodating the selected set of articles 34 is conveyed and moved by the alignment conveyor 38, the fourteenth cup 46 forming the set side by side is circulated. It is transported by the conveyor 45 and moves.
Next, the transfer operator 42 transfers the articles 34 in the cup 46 to the corresponding packaging containers 33, thereby making the packaging containers 33 packed with the articles 34 having a total weight within the predetermined weight range. it can.

In the combination weigher having the above-described structure, the protrusion preventing means 5 is replaced with the memory section 4 of the second staying conveyor 44.
8 and the base end of the circulation conveyor 45.
In this transfer device, the memory section 48 of the second stay conveyor 44 corresponds to the stay conveyor 3 shown in FIG. 1 of the above embodiment, and the base end of the circulation conveyor 45 corresponds to the transport conveyor 4 shown in FIG. The guide 40 corresponds to the guide 1 shown in FIG. Then, 15 sets of the air circuit 2, the pusher 41 and the guide cylinder 9 are provided, and the width of the guide 30 is
The length is substantially equal to the diameter of 0. Further, 49 shown in FIG.
Is a stopper, and 50 is a pad. The operation of the transfer device including the air circuit 2 is the same as that of the above embodiment, and a detailed description thereof will be omitted.

In the above embodiment, the speed control valve 15
However, the speed control valve 15 may be omitted. When the speed control valve 15 is omitted, the speed control valve 15
However, when the solenoid operated valve 13 is switched to the position shown in FIG. 2, the guide cylinder 9 is controlled by the P port of the solenoid operated valve 13. The pusher 84 is actuated immediately by the pressurized air supplied from the solenoid valve to lower the guide 1 to the non-regulated position, while the pusher 84 is operated by the pressurized air supplied from the P port of the solenoid operated valve 13 so that the spool of the pilot operation switching valve 14 Elongates with a delay of the switching time. Thus, the cup 20 can be smoothly transferred onto the transport conveyor 4 without sandwiching the cup 20 between the guide 1 and the pad 85.

The guide cylinder 9 and the pusher 8
4. Although the pneumatic valve is used for the electromagnetic operation valve 13, the pilot operation switching valve 14, and the speed control valve 15, a hydraulic valve may be used.

Next, FIG. 2 to which the above-described transfer device is applied.
And the combination weigher shown in FIG. Loading stage 61
As shown in FIG. 3, there is provided a fixed table (a cradle-shaped receiving table) 67 capable of holding four rows of three cups 20 arranged in one row in the traveling direction. This fixed base 6
7, the five guides 68 are moved in the traveling direction 97 so that the cup 20 does not protrude to the outside of the adjacent row or the input stage 61.
And are spaced apart from each other. At the entrance of the loading stage 61, the end portion 69 of the transfer conveyor 66 is provided.
Is connected. 4 empty cups 20
When a predetermined supply signal is output from a central processing unit (CPU) (not shown) provided in the combination weigher, an air cylinder provided near the terminal end portion 69 is used. Composed empty cup pusher 70
Is extended, and the pad 71 provided at the tip of the empty cup pusher 70 is connected to the four empty cups 20 on the end portion 69.
Can be sent out to the entrance on the input stage 61.
The four cups 20 sent out onto the input stage 61 in this way push the respective front cups 20 forward, whereby the front row 4
Cups 20 each corresponding to four measuring instruments 62-
1, 62-2, 62-3, 62-4, and four scales 62-1, 62-2, 62.
-3, 62-4, four cups 20 are retained on conveyor 3
Can be moved up. Thereafter, the empty cup pusher 70 is shortened, and the subsequent four cups 20 on the transfer conveyor 66 can be stored in the terminal end portion 69. Note that a stopper 72 is provided at the entrance of the terminal portion 69.
Is provided. The stopper 72 is an air cylinder, and is provided with four cups 2 at the end portion 69 of the transfer conveyor 66.
When 0 accumulates, the closing operation is performed (the elongating state shown in FIG. 3 is reached), so that the following cup 20 can be stopped so as not to enter the terminal portion 69, and the cup 20 of the terminal portion 69 can be stopped. Is pushed out to the input stage 61 and when the empty cup pusher 70 is shortened, the opening operation is performed (it is in a shortened state) and the cup 20 passes through the terminal end portion 69.

According to the aligning / conveying means having the above configuration, the empty cups 20 conveyed to the input stage 61 are aligned in four rows along the conveying direction 97 on the input stage 61, and these four rows of cups 20 are arranged. Can be intermittently conveyed in synchronization with each other. As described above, since the cups 20 are arranged in four rows on the input stage 61, when the number of cups 20 transported per unit time is the same, the transport speed of the cups 20 is different from that in the case of transporting in one row. 1 /
4 can be decelerated. In other words, the moving speed of each cup 20 can be made relatively low, and the cups 20 in each row are conveyed in synchronization with the conveying direction 97. 20 is easy to take, so that the worker can surely throw the article 21 into the empty cup 20 on the throwing stage 61.

Each of the four weighing devices 62 shown in FIG. 2 has a weight detector such as a load cell, and the article 21 is loaded from the loading stage 61 onto a loading table provided in each load cell. When the cup 20 is sent, the cup 2
0 and the total weight of the articles 21 put in the cup 20 can be measured. An arithmetic control unit provided in the combination weigher subtracts the weight value of the known cups 20 (each cup 20 has the same weight) from the total weight value to calculate the weight of the article 21. Obtainable. The four cups 20 into which the weighed articles are put are conveyed to the staying conveyor 3 when the number of the cups 20 on the latter staying conveyor 3 becomes eight or less.

Next, the combination calculating means of the combination weigher shown in FIGS. 3 and 4 performs the combination calculation by variously combining the weights of the weighed articles 21 weighed by the weighing device 62 and staying on the staying conveyor 3. A procedure for taking out the articles 21 selected for the combination from the staying conveyor 3, moving the articles 21 to the transport conveyor 4 and transporting the articles 21 into the discharge device 65 will be described. The combination calculation means is a central processing unit (CPU)
, And a predetermined program stored in a storage unit (not shown) connected to the arithmetic control unit. It is a means to do. That is, various weight values of the article 21 to be weighed obtained by weighing by the weighing devices 62 are variously combined, and the total weight value of the combinations is within a predetermined weight range, and the predetermined condition is satisfied. , For example, an article that constitutes a set that is equal to or closest to the target weight.

The combination calculation by the combination calculation means starts when the operator operates the setting display section 87 and the preset combination calculation start memory number reaches K. The number of combination calculation start memories is a condition for the combination calculation means to start the combination calculation, and the condition is the number of cups 20 stopped on the stagnant conveyor 3 (the weighing amount stored in the storage unit). Number of weight values of finished goods)
Are, for example, K = 9 or more. That is,
If the number of weight values stored in the storage unit is less than 9, even if the combination calculation is performed, there is a low possibility that a combination whose total weight is within the predetermined weight range is low. When the number becomes nine or more and the possibility of selecting a combination increases, the combination calculation is performed. However, if the number of cups 20 on the stagnation conveyor 3 is 9
When the number of pieces becomes equal to or greater than the number of pieces, the transfer from the measuring instrument 62 is automatically stopped.

The transfer means for taking out the cup 20 selected for the combination from the staying conveyor 3 and transferring it to the transport conveyor 4 comprises first to tenth pushers 84-1 to 84-84.
−10. Therefore, the first to tenth pushers 84-1 to 84-10 can transfer the first ten pushers 84-1 to 84-10 from among the twelve cups 20 staying on the staying conveyor 3 shown in FIG. Since the cup 20 is one of the cups 20, the weight value to be taken into the combination is also the weight value of the article 21 put into the ten cups 20.

Then, the cup 2 taken out by the first to tenth pushers 84-1 to 84-10 shown in FIG.
The transport means for transporting 0 to a predetermined discharge position 88 includes the transport conveyor 4 shown in FIG.

Now, the article (weight value) is calculated by the combination calculating means.
For example, as shown in FIG. 4, the second article 21, the fifth article 21, and the eighth article 21
If the tenth article 21 is selected, first,
The corresponding position of the guide 1 is lowered to move to the non-regulating position shown in FIG. 2, and then, as shown in FIG. 4, the second, fifth, eighth, and tenth pushers 84-2. , 8
4-5, 84-8, and 84-10 extend and drive each cup 20 containing the second, fifth, eighth, and tenth articles 21 from the stagnation conveyor 3 to push out the cups 20. Conveyor 4 provided adjacent to stay conveyor 3
Move up. And the second, fifth, eighth, and first
0 pusher 84-2, 84-5, 84-8, 84-
In a state in which the extension 10 is driven to extend, as shown in FIG. 4, pads 85-2, 85-5, 85 provided on each pusher are provided.
Each of the locking plates 86 at -8 and 85-10 can lock the subsequent cup 20 of each of the second, fifth, eighth and tenth cups 20 taken out. Thereby, the second, fifth, eighth, and tenth pushers 84-in the extended state are formed.
When the 2, 84-5, 84-8, and 84-10 are shortened, each pad 85-2, 85-5, 85-8, 85-
3 can smoothly return to the original position shown in FIG. 3 without hooking each subsequent cup 20.

Then, the second, fifth, eighth and tenth four cups 20 transferred onto the conveyor 4
Is transported by the transport conveyor 4 and discharged by the discharge device 65
Transported to Each of the second, fifth, eighth, and tenth cups 20 conveyed to the discharge device 65 includes an article 21
Are taken out, and these taken out articles 21 are packed in the packaging machine 8.
9 Packaging. On the other hand, the second, fifth, eighth, and tenth pushers 84-2, 84-5, 84-8, 84-10
Are in the shortened state, six cups 20 each containing the unselected first, third, fourth, sixth, seventh, and ninth articles 21 and two subsequent cups 20 is conveyed by the staying conveyor 3 and advances. Also, four cups 2 for storing the weighed articles from the four weighing devices 62
0 are sequentially supplied to the staying conveyor 3. These four cups 20 and the eight cups 20 on the stagnating conveyor 3, ie, a total of twelve cups 20 containing the weighed articles.
Is conveyed and the leading cup 20 is stopped by the stopper 73 as described above, and the leading cup 20 and the succeeding cup 20 stop on the stagnant conveyor 3 in a state of being pressed down in contact with each other in a row. I do. Thereafter, the following combination operation is performed.

However, when the number of articles (weight values) 21 selected by the combination calculation is four, only eight cups 20 remain on the staying conveyor 3, so that the number K of memory for starting the combination calculation is 9 Less than one, and thus the cup 20 into which the next weighed article has been introduced from the four weighers 62
The following combination calculation is not performed until is discharged to the staying conveyor 3.

Next, the discharge device 65 will be described. The discharge device 65 includes an inclined conveyor 91 and a delivery conveyor 92. The delivery conveyor 92 is a plastic chain conveyor equivalent to the stay conveyor 3. Although not shown, the inclined conveyor 91 is a chain conveyor provided with a large number of cup holders arranged in four rows on a conveying surface. This inclined conveyor 91 is used for the conveyor 4
And receives the cups 20 containing the articles selected in the combination one by one into each of the four cup holders. As shown in FIG. 3, the cups 20 received in these cup holders are sequentially conveyed obliquely upward in a state where four cups are arranged in one horizontal row, and are inverted at the rising end and positioned out of the cup holder. Drops into the cylinder and discharges at a predetermined discharge position 8
Stop at 8. In the discharge position 88, the article 21 housed inside is discharged from the cup 20 due to the inverted cup 20 and the impact due to the drop of the cup 20, and the funnel-shaped portion provided at the lower portion of the cup receiving plate 93. (Not shown) and into the packaging machine 89 through the charging port 94. Then, the four empty cups 20 are transported by an air cylinder (not shown) in the direction of arrow 95 in FIG. The four empty cups 20 are fed through a discharge port (not shown) provided in the cup receiving plate 93 and fed out of the conveyor 9.
The cup 20 is conveyed by the feed conveyer 92, is turned 180 ° by the cup reversing device 96, and is sent out to the transfer conveyer 66 with the cup 20 facing upward. And the transfer conveyor 66
Moves the empty cup 20 to the end 6 of the transfer conveyor 66.
9 and four empty cups 20 accumulate in the end portion 69. As described above, when a predetermined supply signal is output from the central processing unit, the empty cup pusher 70 extends, and The pad 71 provided at the tip of the empty cup pusher 70 can send out the four empty cups 20 on the terminal end 69 to the entrance on the input stage 61. In this way, the cup 20 can be circulated and the combination weighing of articles can be performed sequentially and continuously.

The cups 20 accommodating the articles 21 constituting each set selected in the combination are sequentially transported to the discharge position 88 shown in FIG. 3, and the articles 21 in the cups 20 are sequentially sent to the packaging machine 89. The packaging machine 89 can read the number of articles constituting one set from the storage means and pack the articles constituting one set into one pack. That is, the packaging machine 89 sets the number of articles selected for the combination to 1, 2, 3, 4, 5,...
It is configured to be packed in one pack.

Next, a procedure for storing the weight of the weighed article will be described with reference to FIG. First, the weighing of the cup 20 into which the articles are put is completed by the weighing device 62 (S1).
00), the weight value of the weighed article is stored in the storage unit (S102, 104). For example, first, second,..., N
The weight value obtained by weighing the first is the first, second,.
Store it in the Nth memory. Then, it is determined whether or not the number of stored weight values is K, for example, 9 or more (S1).
06), when it is determined that the number is less than 9, the combination calculation is not performed, and when it is determined that the number is 9 or more, the combination calculation is performed (S108). Then, the s weight values (M _l , M _m ,...) Selected for the combination by the combination operation are calculated.
., _Mn ) is transferred to the conveyor 4 (S110).

However, the articles left on the stagnant conveyor 3 without being selected are sequentially advanced and the order of the articles is changed.
The order of the weight values stored in the memory also needs to be changed. Therefore, M _{n + 1} , M _{n + 2} , ..., M
_The weight value stored _{in the n + (in)} th memory is M _n ,
_{Mn + 1} ,..., And _{Mn + (in) -1} are respectively transferred to the first memory (S112). And M _{m + 1} , M _{m + 2} , ...
··, M m + _(im) th weight value stored in the memory _{M m, M m + 1,} ····, M m + (im) respectively transferred substituting the _-1st memory (S114). Also, M _{l + 1} ,
_{M l + 2, ····, M} l + (il) th weight value stored in the memory _{M l, M l + 1,} ····, M l + (il) -1
Each is transferred to the second memory (S116). In addition, 1
.Ltoreq.l <m <... <N.ltoreq.i, where i is the numerical value of the largest number among the stored memory numbers.

Then, s is subtracted from the original number i of weight values stored in the memory to calculate the number i of weight values currently stored (S118). In this way, it is possible to store the weight values obtained by sequentially weighing the articles newly, and to store in each memory according to the change of the order of the articles remaining on the staying conveyor 3 without being selected. The order of the stored weight values can be sequentially changed. Thereby, each weight value of the articles stopped on the staying conveyor 3 can be stored corresponding to each article.

According to the combination weigher of each of the above embodiments, FIG.
As shown in the figure, a configuration in which an article is held by the same cup 20 from the time when the article to be weighed is thrown into the cup 20 on the throwing stage 61 to the time when it is selected by the combination calculation and thrown into the packaging machine 89 It is. Accordingly, it is possible to improve the measurement accuracy and the measurement speed of the combination measurement of articles such as cut vegetables, pickles, and streaks having adhesiveness or tackiness.

Then, a large number of cups 20 into which the weighed articles have been put can be stored on the staying conveyor 3, and a large number of articles put into the staying many cups 20 participate in the combination. Because of this configuration, the weighing accuracy of combination weighing can also be improved.

In addition, since a large number of weighed articles can be stored without transferring the articles put in the cup 20 to another hopper or the like, the articles can be transferred to another hopper or the like. As a result, there is no weight fluctuation due to the adhesion caused by this, and this also makes it possible to improve the weighing accuracy and the weighing speed of the combination weighing of articles having adhesiveness and the like as compared with the related art. Further, since the cup 20 accommodating a large number of weighed articles can be stored on the staying conveyor 3, the weighing by the weighing device 62 can be performed continuously and sequentially. The operation efficiency can be improved.

In each of the above embodiments, the twelve cups 20 are stopped on the stagnation conveyor 3, but the other number of cups 20 may be stopped. In addition, the number of weight values (the number of cups 20) to participate in the combination is set to 10, but may be other numbers.

In the above embodiment, when the weight of the empty cup 20 is unknown or when the weight of the empty cup 20 varies greatly, a separate measuring device is provided in front of the charging stage 61 and the measuring device is used. The weight of the article 21 may be obtained by weighing the weight of the empty cup 20 in advance and subtracting the weight of the corresponding cup 20 from the total weight of the cup 20 and the article 21 obtained by weighing with the measuring device 62 at the subsequent stage. Good.

When the weight of each empty cup 20 is uniform, the combination calculation may be performed by variously combining the total weight of the cup 20 and the article. In this case, the target weight value of the combined total weight is a weight value obtained by adding the weight of the cup 20 to the weight of the article.

Further, the number of the measuring devices 62 is four,
The number may be other than four. And input stage 6
1 needs to have a configuration in which the cups 20 are arranged in the number of rows corresponding to the number of the weighing devices 62 and the cups 20 are sequentially supplied to the weighing devices 62.

Although the shape of the cup 20 is a short cylinder having a bottom, it may be a shape other than this, for example, a polygonal cylinder having a bottom.

In addition, the stagnation conveyor 3 of each of the above embodiments,
And each of the conveyors 4 has a configuration having two annular plastic chains, but may have another configuration. In short, stay conveyor 3 and transport conveyor 4
Can convey the cup 20 in a predetermined direction, and when the conveying surface of the conveyer is moving (during driving), when the leading cup 20 is locked and stopped, the subsequent Any configuration can be used as long as the cup 20 can be stopped in a pressed state on the conveyor surface of the conveyor.

[0064]

According to the transfer device of the article holding means in the combination weigher according to the present invention, the guide regulates the article holding means so that the article holding means does not protrude from the standby-side transfer means, and the transfer means controls the standby-side transfer means. And a non-regulated position where the article holding means on the means can be transferred onto the receiving means. Therefore, the height position of the article holding means with respect to the standby-side transport means may change due to, for example, an article (object to be weighed) adhering to the holding surface of the standby-side transport means that holds the article holding means, or a combination. After the article holding means accommodating the selected article is transferred from the standby-side transporting means to the receiving means, each subsequent article holding means on the standby-side transporting means is transported forward to the respective front side. Even if the article holding means strongly collides with the article holding means, the article holding means can be surely regulated so as not to protrude from the standby-side transport means by the guide at the regulating position. Thereby, for example, the article holding means for accommodating the articles not selected for the combination does not move to the receiving means side, and as a result, it is possible to prevent a decrease in the weighing accuracy of the combination.

According to the second aspect, the second actuator can be operated with a slight delay from the operation timing of the first actuator due to the time required for switching the pilot operation switching valve. Electric devices such as a relay and a timer for delaying the timing of operating the second actuator can be eliminated. In other words, when electric devices such as solenoid valves, relays, and timers are used in combination weighers that require water washing, it is necessary to store those electric devices in a waterproof control box, and Since the cost of waterproofing increases according to the number of devices, the number of electrical devices is reduced to provide a transfer device for the article holding means that is easy to wash with water, has a simple structure, and is inexpensive. can do.

According to the third aspect, since the switching speed of the pilot operation switching valve is controlled by the speed control valve, the timing for operating the second actuator without using an electric device such as a relay or a timer is determined. Can be adjusted.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a state in which a cup is retained on a retaining conveyor of a transfer device of an article retaining means in a combination weigher according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a state in which a desired cup on a staying conveyor of the transfer device according to the embodiment is pushed out onto a transport conveyor.

FIG. 3 is a plan view showing a combination weigher to which the transfer device of the embodiment is applied.

FIG. 4 is a partially omitted plan view showing a state in which a pusher of the combination weigher to which the transfer device of the embodiment is applied pushes out a cup accommodating a selected article.

FIG. 5 is a flowchart showing an operation procedure of the combination weigher according to the embodiment.

FIG. 6 is a plan view showing another combination weigher to which the transfer device of the article holding means in the combination weigher according to the present invention is applied.

FIG. 7 is an enlarged longitudinal sectional view showing a cup transfer device in a conventional combination weigher.

8 is a partially omitted plan view of a combination weigher to which the conventional transfer device shown in FIG. 7 is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide 2 Air circuit 3 Staying conveyor 4 Conveyor 5 Protrusion prevention means 9 Guide cylinder 13 Electromagnetic operation valve 14 Pilot operation switching valve 15 Speed control valve 20 Cup 21 Article 26 Pusher 61 Feeding stage 62-1 to 62-4 Measuring device 65 Discharge device 66 Transfer conveyor 70 Pusher for empty cup 84-1 to 84-10 Pusher

Claims (3)

[Claims] An article is put into the article holding means while the article holding means is being conveyed along a conveyance path, and the total weight of the article holding means and the articles put into the article holding means, or The weight of the article, which is put in the state where the article is put into the article holding means, is weighed by the weighing means, and each weight value obtained by weighing by the weighing means is involved in the combination calculation to obtain the total weight value. In a combination weigher in which the combination calculating means selects an article constituting a set within a predetermined weight range, the combination weighing apparatus is provided on the transport path, and the article holding means are arranged in a row so that adjacent ones are in contact with each other. A standby-side transport unit that is kept on standby; a receiving unit that receives the article holding unit transferred from the standby-side transport unit; and a receiving unit that receives the article holding unit on the standby-side transport unit. A transporting means for transporting the article onto the means, a guide having a guide, and a regulating position for regulating the article holding means so as not to protrude from the standby side transporting means, and the article holding means on the standby side transporting means. An extruding prevention means for moving the transfer means to an unregulated position where it can be transferred onto the receiving means. 2. The transfer device of an article holding means in a combination weigher according to claim 1, wherein said protrusion preventing means is actuated by a pressurized fluid to move said guide between said restricted position and said non-restricted position. And a valve for supplying and operating a pressure fluid to the first actuator, wherein the transfer means is operated by the pressure fluid and moves the article holding means on the standby-side transport means on the receiving means. And a second actuator that switches by the pilot pressure applied from the valve when the valve is switched so that the guide moves to the non-regulated position, and the second actuator switches the article holding means. A pilot operated switching valve for supplying a pressurized fluid to the second actuator for transfer. Transfer device for the article holding means to be moved. 3. A transfer device for an article holding means in a combination weigher according to claim 2, wherein a speed control valve for controlling a switching speed of said pilot operation switching valve is provided in a passage of pilot pressure of said pilot operation switching valve. An apparatus for transferring article holding means in a combination weigher.