JPH10332467A - Combination measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply adequate amount of a material to be measured, which is readily entwined and has the intense stickiness smoothly and stably to individual supplying device for every measuring part of a combination measuring device. SOLUTION: A plurality of discharging ports 35 are provided at the bottom part of each tank 30 for material to be measured. A gate part 62 of a regulating body 61 is arranged on a slant surface 32, which is inclined toward each discharging port 35. The gate part 62 is lowered to the side of the discharging port in sliding with the slant surface 32 and narrows the flow path of the material to be measured in the tank to the discharging port. The gate part is separated from the discharging port in sliding with the slant surface 32 and expands the flow parth to the discharging port. The material to be measured, which is exhausted by the adequate amount from the tank 30 for the material to be measured by the rising and lowering driving of each regulating body 61, is supplied to a measuring hopper 83 through a direct advancing feeder 71 and a pool hopper 73, and the amount is measured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination weighing device for combining and discharging objects weighed by a plurality of weighing sections, in order to automatically supply an appropriate amount of tangible objects to be weighed easily to each weighing section. Related to the technology.

[0002]

2. Description of the Related Art In a combination weighing apparatus, an apparatus for automatically supplying an appropriate amount of an object to be measured to a plurality of weighing sections is divided into a plurality of paths and individually supplied to each weighing section. The objects to be weighed are supplied to the measuring device in advance, and the objects to be weighed are quickly supplied from the individual supply device to the measuring section from which the objects to be weighed are discharged.

[0003] In order to automatically supply the objects to be weighed to the weighing section, conventionally, the objects to be weighed are supplied onto a circular umbrella-shaped vibrating dispersion feeder, and the objects to be weighed are dispersed by the dispersion feeder. The objects to be weighed are carried out to a plurality of vibrating linear feeders radially arranged on the outer periphery of the weighing object, and the objects to be weighed are carried out from the respective linear feeders to the pool hopper by an appropriate amount, and the hopper is emptied from the pool hopper. An object to be weighed was being supplied.

However, in the combination weighing device using such a vibration type dispersion feeder, when the object to be weighed is strongly sticky or easily entangled like pickles or cooked meat, it is necessary to feed each straight feeder. There was a problem that it could not be evenly and smoothly supplied.

In order to solve this, FIG. 16 and FIG.
A combination weighing device as shown in FIG. 7 has also been proposed.

In this combination weighing apparatus, an object to be weighed is supplied to a tank 1 having an open top and a bottom, and a plurality of screw type (or vibration type) supply apparatuses 2 are arranged below the tank 1 to supply each object. The objects to be weighed supplied from the apparatus 2 to the pool hopper 6 are respectively supplied to the weighing hoppers 7 and weighed, a combination is selected based on the weighing results, and the selected objects are discharged from the weighing hoppers and collected. Collective discharge at 8.

Here, each supply device 2 has a gutter-like guide 3 having one end located below the tank 1 and the other end extending above the pool hopper 6, and is rotatably supported within the guide 3. Screw 4 from one end of the guide 3
, And a motor 5 for feeding the object to be weighed in the tank 1 along the guide body 3.

The pool hopper 6 and the weighing hopper 7
Is to ensure that objects with strong adhesiveness can be discharged.
It is opened and closed by sliding type bottom plates 6a and 7a. The weighing hopper 7 is supported by the weighing device 10 in the housing 9.

[0009]

However, when the entire lower surface of the tank 1 is always open as in this combination weighing device, the load of the object to be weighed in the tank 1 is applied to the screw 4 of each supply device 2. Directly applied, the conveying force of the supply device 2 fluctuates greatly depending on the amount of the object to be weighed in the tank, and the supply amount of the object to be weighed to the weighing hopper fluctuates greatly. Was. This problem similarly occurs even when a vibrating linear feeder is used as the supply device 2.

When the object to be weighed enters a bridge state at a position above the supply device 2, the object to be weighed cannot be supplied from the supply device 2 until the bridge state is broken, and an empty weighing hopper is generated for a long time. As a result, there is a problem that the number of combinations of the objects to be weighed is reduced and the weighing accuracy is reduced.

An object of the present invention is to solve the problem and to provide a combination weighing device capable of supplying an object to be weighed smoothly and stably to an individual feeder for each weighing section.

[0012]

According to a first aspect of the present invention, there is provided a combination weighing apparatus, comprising: a weighing object stored in a weighing object tank; The objects to be weighed discharged from the plurality of outlets provided in the plurality of weighing units are supplied to the plurality of weighing units via the individual supply devices, and the objects to be weighed by the plurality of weighing units are weighed. In the combination weighing device that performs combination discharge based on the result, an inclined surface for guiding the weighing object contained in the weighing object tank to each of the discharge ports is provided for each of the discharge ports, and the weighing object tank is provided inside the weighing object tank. An elevating / lowering support member provided at a position above each of the discharge ports so as to be movable up and down, and a gate portion having an outer shape corresponding to the discharge port is provided at a lower end, and the inclination direction of the inclined surface of the discharge port corresponding to the gate portion The top side is forward so that you can move along The gate portion is rotatably supported by the elevating support, and when the elevating support descends, the gate portion is lowered to the corresponding outlet while slidingly contacting the inclined surface, and the flow of the object to be weighed to the outlet is performed. The path is narrowed, and when the elevating support rises, the gate portion is slid in contact with the inclined surface and is moved away from the corresponding discharge port so as to widen the flow path of the object to be weighed to the discharge port. The formed regulating body and a driving device that drives the lifting support members up and down to supply the objects to be weighed from the outlets of the tank to be weighed to the individual feeders.

According to a second aspect of the present invention, there is provided the combination weighing apparatus according to the first aspect, wherein each of the up-and-down supports supports a plurality of the regulating bodies. The flow path of the object to be weighed to the corresponding outlet is expanded and contracted by the gate portion.

According to a third aspect of the present invention, there is provided the combination weighing apparatus according to the first or second aspect, wherein the gate portion of the regulating body rises along the inclined surface of the discharge port. In addition, a plurality of auxiliary bodies that move above the outlet and assist the outflow of the object to be weighed above the outlet are provided in the object tank corresponding to the respective outlets.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing the entire structure of one embodiment of the present invention, and FIGS. 2 to 13 show the detailed structure of the combination weighing device of one embodiment.

As shown in FIGS. 2 to 4, the combination weighing device 20 is supported on a base 22 having four legs 21.

On the base 22, a substantially rectangular parallelepiped main housing 2 is provided.
3 are supported. At the four corners of the upper surface 23a of the main housing 23, columns 24 are erected, and the frame 25 is supported above the main housing 23 by the four columns 24.

The frame 25 includes a horizontally long rectangular front plate 25a,
Side plates 25b, 2 bent rearward from both ends of the front plate 25a.
5c are formed in a substantially U-shape when viewed from above.
The front and rear ends of the lower ends of 5b and 25c are fixed to the upper end of the column 24.

Rails 26 are fixed horizontally on the inner surfaces of both side plates 25b and 25c of the frame 25. Also,
At the center of the upper surface 23a of the main housing 23, pillars 27 are erected in front and rear, and rails 2 are provided at the upper ends of the two pillars 27.
8 are supported at the front end and the rear end.

Inside the frame 25, two object tanks 30 are supported side by side. As shown in FIGS. 4 to 6, the weighing object tank 30 includes a front plate 30 a having a substantially oblong rectangular shape as viewed from the front, inverted trapezoidal side plates 30 b and 30 c bent rearward from both ends of the front plate 30 a, and a side plate. 30
b, rear plate 3 inclined to connect rear edges of 30c
0d forms an outer peripheral portion.

At the bottom of the tank 30 to be weighed, five outlets 35 having a rectangular opening are arranged in a horizontal line.
On both sides of each outlet 35, a bottom plate 3 inclined toward the outlet 35 is provided.
2 are provided. Each bottom plate 32 has an inclined surface 32a.
Guides the object to be weighed to the discharge port 35.

At the lower edge of the bottom plate 32, a guide plate mounting portion 32a bent in the vertical direction is extended, and a guide plate 36 is mounted on each guide plate mounting portion 32a.

The bottom plates 3 at both ends of the tank 30 to be weighed are
A support 37 is attached to the outer surface of the support 2 for sliding the lower surface on rails 26 and 28 attached to the frame 25 and the support column 27 to move the object tank 30 horizontally in the front-rear direction. ing.

On the outer peripheral surface of the rear plate 30d of the object tank 30, a handle 38 for gripping the object tank 30 when moving the object tank 30 is attached.
Reference numeral 0 denotes that the front plate portion 30a is locked at a position where the front plate portion 30a overlaps the front plate 25a of the frame 25 by a locking mechanism (not shown) (for example, a hook mechanism called a pin lock mechanism or a patch lock), and the locking is released. Thereby, it can be slid backward.

On the other hand, a first drive housing 40 is mounted on the front side of the front plate 25a of the frame 25. The first drive housing 40 is formed in a horizontally long rectangular shape having substantially the same width as the front plate 25a of the frame 25, and its front side is closed by two covers 41 that can be opened and closed (opening and closing mechanism is not shown). I have.

As shown in FIG. 7, a middle plate 42 is provided in the middle of the first drive housing 40 so as to partition the inside of the first drive housing 40 up and down. Air cylinders 43 and 44 are attached to the middle plate 42 at positions corresponding to the respective discharge ports 35 of the object tank 30 attached to the back side thereof so as to be arranged in front and rear. The cylinder shafts 43a, 44a of the air cylinders 43, 44 project toward the lower surface of the middle plate 42.

Further, beside the air cylinders 43 and 44,
The intermediate shafts 45 and 46 are respectively supported so as to be able to move up and down. The intermediate shafts 45 and 46 have lower portions projecting toward the lower surface side of the middle plate 42 and upper portions thereof have upper plates 40 of the first drive housing 40.
The lower part of the intermediate shaft 45 is connected to the cylinder shaft 43a of the air cylinder 43 via a connecting member 47, and the lower part of the intermediate shaft 46 is connected to the cylinder shaft 44a of the air cylinder 44. Through a connecting member 48. Therefore, the air cylinders 43, 44
Is driven, and the cylinder shafts 43a, 44a move up and down, the intermediate shafts 45, 46 connected thereto move up and down.

The intermediate shafts 45 and 46 are moved up and down by a guide body 49 attached to the upper plate 40a of the first drive housing 40,
50, a guide body 51 attached to the middle plate 42,
51. The guide body 49
Guides the vertical movement of the auxiliary body 56 described later at its tip.

The connecting member 5 is provided above the intermediate shafts 45 and 46.
3 and 54 are respectively attached. Connecting member 53
Is locked to the intermediate shaft 45, and the other end extends to a position above the discharge port 35 of the tank 30 to be weighed. The connecting member 54 is formed in a substantially U-shape when viewed from above, and an intermediate portion 54a thereof is locked to the intermediate shaft 46,
Two arms 54 projecting in parallel from both ends of the intermediate portion 54a
The tip of b extends to a position above the inclined surface 32a of each bottom plate 32.

The intermediate shafts 45, 46 and the connecting members 53, 54 are locked by an eccentric locking mechanism so that the mounting and detaching can be easily performed. That is, as shown in FIG. 8, the small diameter portions 45a and 46a are provided slightly below the tips of the intermediate shafts 45 and 46, and the small diameter portions 45a and 46a are provided.
The rings 45b, 46b are loosely fitted into the rings 45b, 46a, and the spring members 45c, 46c are attached between the outer periphery of the small diameter portions 45a, 46a and the inner periphery of the rings 45b, 46b.
b, 46b are biased so as to be eccentric with respect to the intermediate shafts 45, 46, and a connecting member 53 is provided between the lower ends of the rings 45b, 46b and the large diameter portions 45d, 46d of the intermediate shafts 45, 46. , 54 are supported. Then, if the rings 45b and 46b are pushed so as to be concentric with the intermediate shafts 45 and 46 and the connecting members 53 and 54 are pulled up, the connecting members 53 and 54 can be removed from the intermediate shafts 45 and 46.

Further, slits 53a and 54c are provided at the tip of the connecting member 53 and the tip of the arm 54b of the connecting member 54, respectively.
The support height of the auxiliary body 56 and the restricting body 60 described later can be set to any position by narrowing or widening the slit gap by tightening or loosening the screw 55. .

As shown in FIG. 10, an auxiliary body 56 for assisting the outflow of the object to be weighed to the discharge port 35 is supported on the other end of each connecting member 53. The auxiliary body 56 is formed by a thin round bar, and its lower part 56a is substantially 90
And the vertical movement of the lower portion 56a makes it easier for the objects to be weighed above the respective outlets 35 to flow downward.

On the other hand, as shown in FIG. 10, the upper ends of a pair of round rod-shaped support shafts 59 are supported at the distal ends of both arms 54b of each connecting member 54. The support shaft 59, together with the connecting member 54, forms the elevating support of this embodiment.

The pair of support shafts 59 are respectively provided with regulating bodies 60 for regulating the outflow of the object to be measured to the discharge port 35. The regulating body 60 includes a round bar-shaped shaft portion 61 and a gate portion 62 provided at a lower end of the shaft portion 61. A spring 63 is hung over an upper portion 61b of both shaft portions 61 bent in a direction approaching each other so as to be rotatable about a pin 61a on a plane along the inner peripheral surface of the shaft 61. ing.

The two shaft portions 61 are provided on the bottom plate 3 on both sides of the discharge port 35.
The two gate portions 62 extend to a position close to the second inclined surface 32 a, and the outer shape of the gate portion 62 provided at the end thereof has a size that almost completely covers the discharge port 35 when the two gate portions 62 are in the abutting state. The side surface is formed in an oval (or elliptical) shape.

The both shaft portions 61 are provided with stopper pins 64 that abut against the lower ends of the support shafts 59 so that the lower side does not open in a C shape due to the urging force of the spring 63. Therefore, when the air cylinder 44 is driven to lower the intermediate shaft 46 and the support shaft 59 is lowered, the pair of gate portions 62
The bottom surface 32 is moved toward the discharge port 35 while the lower surface side is slid in contact with the inclined surface 32a, and the leading ends thereof are brought into contact with each other to close the discharge port 35.

The lower limit position of the regulating body 60 is set in advance so that the tips of the gate portions 62 come into contact with each other, and the elevating stroke thereof is adjusted by a stopper mechanism (not shown) according to the type of the object to be weighed. The length is set in advance to be the length.

A sensor support member 65 is mounted on the upper surface of the first drive housing 40.
A tank sensor 66 for optically detecting the amount of the object to be weighed in the object to be weighed 30 is attached to the tip end of the tank 5. Two tank sensors 66 are provided for each tank, and when one of them detects shortage of the objects to be weighed, the bucket conveyor 10 (see FIG. 1) is driven to replenish the objects to be weighed. A feeder sensor 67 for detecting the amount of the object to be weighed on a rectilinear feeder 71 described below is attached to the lower surface side of the first drive housing 40.

A straight feeder 71 is arranged below each discharge port 35 of the tank 30 to be weighed. Each of the rectilinear feeders 71 constitutes an individual feeder of this embodiment together with a pool hopper 73 described later.
The trough 72 is vibrated obliquely upward and forward by the vibrator (not shown) fixed to the upper surface of the second drive housing 68 and the object to be weighed discharged from the discharge port 35 is moved to the front end side of the trough 72. Transport.

As shown in FIG. 11, the lower ends of the guide plates 36 attached to both sides of the discharge port 35 are located inside the guide portions on both sides of the trough 72, and The weighing object discharged from is prevented from spilling to the side.

A pool hopper 73 is arranged below the leading end of each straight feeder. Pool hopper 7
As shown in FIG. 12, reference numeral 3 denotes a cylindrical body 74 which is opened at the top and bottom with a synthetic resin, and a bottom plate 80 which will be described later. Flanges 74a, 74 are provided on the front and rear edges of the lower portion of the cylindrical body 74.
and two locking holes 75 are provided in one of the flange portions 74a.

The pool hopper 73 is supported by frames 76 attached to the left and right sides of the front surface of the second drive housing 68. That is, five pin fixing plates 77 are attached to the inside of the front plate 76a of each frame 76 at predetermined intervals, and the pin fixing plates 77 are provided with locking holes for the cylindrical body 74 of the pool hopper 73. Two locking pins 78 are erected at the same interval as 75. The front plate 76a of the frame 76 and the second drive housing 6
A pair of guide shafts 79 are respectively installed on both sides of the pair of locking pins 78 in parallel with the front surface of the pair 8, and a bottom plate 80 is supported on each of the pair of guide shafts 79. The bottom plate 80 is engaged with one of the guide shafts 79 on the lower surface side, and is supported so as to be slidable in the front-rear direction.

The cylindrical body 74 of the pool hopper 73 faces the flange 74 a provided with the locking hole 75 in a state where the locking hole 75 is locked by the pair of locking pins 78. , And is supported on the bottom plate 80.

The bottom plate 80 is formed in a substantially rectangular shape large enough to cover the lower opening surface of the cylindrical body 74, and the rear side of one side thereof is provided with the air cylinder 8 provided in the second drive housing 68.
The air cylinder 81 pulls the bottom plate 80 to open the pool hopper 73 and pushes the bottom plate 80 forward,
The pool hopper 73 is closed.

Below each pool hopper 73, a weighing hopper 83 is disposed. As shown in FIG. 13, the weighing hopper 83 includes a tubular body 84 and a bottom plate 90 having the same shape as the tubular body 74 and the bottom plate 80 of the pool hopper 73. The cylindrical body 84 of the weighing hopper 83 is supported in a direction in which the front and rear directions are opposite to the cylindrical body 74 of the pool hopper 73, and flanges 84a provided on the lower front and rear thereof.
The two locking holes 85 of one of the flange portions 36a of the 84b are engaged with two locking pins 88 of a hopper support 87 supported in front of a third drive housing 86 on the front side of the main housing 23. doing.

At both ends of the hopper support 87, a pair of guide shafts 89 extending forward and parallel at a slightly wider interval than the locking pins 88 are mounted. A bottom plate 90 that is guided by the pair of guide shafts 89 and is slidable in the front-rear direction is supported, and the tubular body 84 is supported so as to be placed on the bottom plate 90. The rear side of one side of the bottom plate 90 is
Cylinder shaft 9 of air cylinder 91 in third drive housing 86
It is detachably connected to the tip of 1a.

The air cylinder 91 moves the bottom plate 90 forward to open the weighing hopper 83, and retracts the bottom plate 90 to close the weighing hopper 83.

The hopper support 87 is detachably connected via a locking mechanism 93 to a disk-shaped connecting plate 92 arranged on the front surface of the third drive housing 86. The connecting plate 92 is connected to the third
The third drive is supported by each load cell 94 fixed in the drive housing, and the air cylinder 91 is also fixed to the connecting plate 92 so that the cylinder shaft 91 a passes through the connecting plate 92. It protrudes forward of the housing 86.

Therefore, the load of the cylindrical body 84, the hopper support 87, the guide shaft 89, the bottom plate 90, the air cylinder 91, the connecting plate 92 and the locking mechanism 93 is constantly applied to the load cell 94, and the steady load is applied. A load due to the object to be weighed is added.

Below each weighing hopper 83, a timing hopper 95 is arranged. The timing hopper 95 has exactly the same configuration as the pool hopper 73. That is, as shown in FIG. 12, the cylindrical body 96 of the timing hopper 95 has
Of which a flange portion 96a provided with two locking holes 97
With the side facing forward, the locking holes 97 are formed in the locking pins 100 protruding from the pin fixing plate 99 of the front plate 98a of the frame 98 fixed to the left and right of the front surface of the main housing 23. Locked,
The frame 98 is mounted on a bottom plate 102 that is supported on a pair of guide shafts 101 laid in parallel between the front plate 98a of the frame 98 and the front surface of the main housing and slides back and forth.

The rear side of one side of the bottom plate 102 is detachably connected to a tip of a cylinder shaft 103a of an air cylinder 103 in the main housing 23. Air cylinder 103
Moves the bottom plate 102 rearward and moves the timing hopper 9
5, the timing hopper 95 is closed by moving the bottom plate 102 forward.

Below the timing hopper 95, two conveyors 105 are arranged on the left and right. Both conveyors 1
Reference numeral 05 is supported on the front of the main housing 23, and the left conveyor 105 receives the objects to be weighed discharged from the five left timing hoppers and conveys them to the right end.
Reference numeral 05 receives the objects to be weighed discharged from the five right-side timing hoppers and conveys them to the left end.

Between the conveyor 105 and the timing hopper 93, there is provided a cover 107 for preventing the objects discharged on the conveyor from spilling. This cover 1
07 is supported by the frame 98.

Below the two conveyors 105 and 106, a funnel-shaped collecting chute 108 is supported.
The collecting chute 108 is supported so as to be slidable forward by a supporting member 109 attached to a lower front end of the main housing 23.

The combination weighing device 20 configured as described above
Is controlled by a control device (not shown). Hereinafter, the operation of the combination weighing device by the control device will be described.

The objects to be weighed are sufficiently accommodated in the left and right weighing object tanks 30 in advance.
There is also an appropriate amount of objects to be weighed on the hopper 2, and the weighing objects are also stored in the pool hopper 73 and the weighing hopper 83 by an appropriate amount, and the weight of the objects in the weighing hopper is detected based on the output signal of each load cell 94. It is assumed that

Here, when there is a combination discharge request, a combination whose combination weight is within a preset target weight range is selected from the objects to be weighed contained in each weighing hopper 83, and the selection is made. The weighing hopper 83 accommodating the measured objects is opened, and the objects in the weighing hoppers are accommodated in the corresponding timing hoppers 95, respectively.

Timing hopper 95 that receives the object to be weighed
Are opened and closed in order from the one farthest from the collecting chute 108 in accordance with the transport speed of the conveyor 105. For this reason, the objects to be weighed stored in the timing hopper 95 are conveyed while being collected at substantially the same position on the conveyor 105, carried out to the collecting chute 108, and sent to a packaging machine or a packaging line (not shown).

During this time, the object to be weighed is supplied from the corresponding pool hopper 73 to the empty weighing hopper 83, and the straight feeder 7 is supplied to the empty hopper 73.
From 1, an object to be weighed is supplied in an appropriate amount.

Subsequently, the same operation is repeated, and the objects to be weighed, which have been selected in combination, are sequentially collected and discharged. The feeder sensor 67 has decreased.
, The air cylinder 44 in the first drive housing 40 corresponding to the straight feeder 71 is driven, and the support shaft 59 connected to the air cylinder 44 is driven.
Rises, and the gate portion 62 of the restricting body 60 moves to the position shown in FIG.
To (c), the bottom plates 32, 32 on both sides of the discharge port 35.
Move away from the discharge port 35 along the inclined surface 32a.

At this time, the air cylinder 43 is driven in the reverse direction, and the lower end 56a of the auxiliary body 56 connected to the air cylinder 43 is lowered toward the discharge port 35.

Therefore, the flow path to the discharge port 35 is widened, and the weighing object W at the upper portion of the discharge port 35 flows toward the discharge port 35 and from the discharge port 35 onto the trough 72 of the straight feeder 71. Is discharged.

When the gate portion 62 of the regulating body 60 descends along the inclined surface 32a of the bottom plate 32 and the flow path of the object to be measured to the discharge port 35 is narrowed, the discharge of the object to be measured from the discharge port 35 is performed. When the amount decreases and returns to the position where the pair of gate portions 62 abut as shown in FIG. 14D, the objects to be weighed remaining in the vicinity of the discharge port 35 are pushed out by the gate portions 62 and are placed on the trough 72. To the outlet 35
Discharge of the object to be weighed from is stopped. The auxiliary body 56 is lowered at least once while the regulating body 60 is raised,
The flow of the object to be measured to the discharge port 35 is assisted.

Since such an operation is performed independently for each straight-ahead feeder, an appropriate amount of the object to be weighed is supplied onto each straight-ahead feeder, and the amount of the object to be weighed supplied to each weighing hopper is also stabilized.

Since the auxiliary body 56 moves up and down above the discharge port 35 with the movement of each regulating body 60, the objects to be weighed in the weighing object tank 30 are agitated, and Even if the bridge of the weighing object occurs temporarily, the bridge state can be immediately broken.

Further, since the regulating body 60 receives the load of the object in the object tank 30, the load of the object in the object tank 30 is not directly applied to each linear feeder 71. Thus, the fluctuation of the conveying force of the straight feeder 71 is reduced, the amount of the object to be weighed supplied to the weighing hopper 83 is stabilized, and the weighing accuracy is improved.

In this way, the objects to be weighed in the object tank 30 are transferred to each of the linear feeders 71 and the pool hopper 7.
While the weighing hopper 83 is supplied through the weighing hopper 83, the decrease in the weighing object in the weighing object tank 30 is detected by the tank sensor 66.
Is detected, the bucket conveyor 10 is driven, and a new object is supplied to the object tank 30. The worker may supply the object to be weighed to the object tank 30. In this case,
By driving a lamp or buzzer with the output of the tank sensor 66,
What is necessary is just to urge the operator to replenish the object to be weighed.

As described above, the auxiliary body 56 and the regulating body 60 can be detached from the intermediate shafts 44 and 45 by a simple operation, and the object tank 30 itself can be slid toward the rear side of the apparatus. Since it can be removed from the apparatus, cleaning and maintenance work can be easily performed.

Further, the auxiliary body 56, the regulating body 60 and the object tank 30 are removed, and the object to be weighed is manually supplied to the linear feeder or the pool hopper, or a hole is provided at a position corresponding to the linear feeder 71. The table-shaped table provided with is mounted in place of the tank 30 to be weighed in place of the object to be weighed, and the object to be weighed on the table is manually sent to each hole to be supplied to a linear feeder or a pool hopper. it can.

In the above description, the object tank 30
Has been described, the intermittent supply of the objects to be measured to the respective linear feeders 71 is described. However, the objects to be weighed in the object tanks constantly flow in small amounts through the gap between the gate portions 62 of the pair of regulating bodies 60. Only when the drive frequency of the linear feeder is increased or the outflow is extremely reduced due to a bridge or the like and the weighing object on the linear feeder is extremely reduced, 60 may be raised. In this case, the auxiliary body may be constantly driven up and down to prevent the object from being bridged in the vicinity of the outlet of the object.

[0071]

[Other Embodiments] In the above embodiment, two sets of the weighing object tank 30 having five discharge ports at the bottom are used.
This does not limit the present invention. For example, one weighing object tank having ten discharge ports may be used, or three sets of weighing object tanks having four discharge ports may be used.

The object tank 30 of the above-described embodiment is used.
Has a plurality of outlets arranged in a row, but a plurality of outlets are provided radially at the bottom of a cylindrical or prism-shaped weighing object tank, and each regulating body is supported above the inclined surface of each outlet You may make it.

In the above embodiment, the auxiliary body is driven by the driving device (air cylinder 43) independent of the driving device (air cylinder 44) of the regulating body. However, the auxiliary body and the regulating body are linked by a link mechanism. The driving device side can be simplified by interlocking the auxiliary body with the lifting / lowering operation of the regulating body by being connected through the intermediary member, and a member for stirring the object to be weighed may be protruded from the regulating body.

In the above-described embodiment, the objects to be weighed discharged from the object to be weighed are supplied to the weighing hopper 83 via the linear feeder 71 and the pool hopper 73 as individual feeders. Alternatively, the object to be weighed discharged from the object to be weighed tank may be supplied directly to the pool hopper 73. In this case, the lifting stroke of the regulating body is adjusted according to the type of the object to be weighed, the target weight, or the like, or the time during which the regulating body is raised is set, and an appropriate amount of the weighing object is set in each pool hopper. Is supplied.

In the above embodiment, one outlet 3
Although a pair of regulating bodies 60 are used for 5, as shown in FIG. 15, an inclined surface 32 a for guiding an object to be weighed is provided on one side only at a discharge port 35 of an object tank 30 ′, and as shown in FIG. The gate portion 62 of one regulating body 60 may be moved along the inclined surface 32a, and three or more regulating bodies may be provided for one discharge port.

In the above embodiment, the two support shafts 5
Although each of the regulating bodies 60 is supported at 9, a pair of regulating bodies may be rotatably supported on one supporting shaft.

[0077]

As described above, in the combination weighing device according to the present invention, the tank of the regulating body is moved along the inclined surface for guiding the weighing object to the discharge port of the weighing object tank. Widening or narrowing the flow path of the objects to be weighed into each outlet, supplying the objects to each individual feeder,
The objects to be weighed are supplied from the individual feeders to the weighing units.

For this reason, the load of the object to be weighed in the object tank is not directly applied to the individual feeder, and the sticky weighing object which is easily entangled without greatly affecting the operation of the individual feeder. It can be supplied stably to the measuring section.

Further, since the regulating body itself moves up and down in the weighing object tank, the weighing object is less likely to be bridged in the weighing object tank, and the weighing object is smoothly supplied to the individual feeder. be able to.

Further, when the regulating body is rising along the inclined surface, the auxiliary body which moves to the discharge port side corresponding to the regulating body and assists the outflow of the object to be weighed in the vicinity of the discharge port is provided to each discharge port. Since the weighing object is provided in the weighing object tank corresponding to the outlet, it is possible to more easily discharge the tangible, tangible weighing object.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of one embodiment of the present invention.

FIG. 2 is a front view of one embodiment.

FIG. 3 is a side view of one embodiment.

FIG. 4 is a plan view of one embodiment.

FIG. 5 is a side view of an object tank according to an embodiment;

FIG. 6 is a side view of an object tank according to one embodiment;

FIG. 7 is a perspective view showing the inside of a drive housing of one embodiment.

FIG. 8 is a sectional view showing a locking mechanism between the intermediate shaft and the connecting member according to the embodiment;

FIG. 9 is a perspective view showing a connection member and a support mechanism of a regulating body and an auxiliary body according to the embodiment;

FIG. 10 is a perspective view of a regulation body and an auxiliary body according to one embodiment.

FIG. 11 is a perspective view of a main part of one embodiment.

FIG. 12 is a perspective view of a pool hopper and a timing hopper of one embodiment.

FIG. 13 is a perspective view of a weighing hopper according to one embodiment.

FIG. 14 is a diagram illustrating an operation of the embodiment.

FIG. 15 is a schematic view of another embodiment.

FIG. 16 is a schematic front view of a conventional apparatus.

FIG. 17 is a schematic side view of a conventional device.

[Description of Signs] 20 Combination weighing device 30 Tank to be weighed 32 Bottom plate 35 Discharge port 43, 44 Air cylinder 56 Auxiliary body 60 Regulator 61 Shaft section 62 Gate section 71 Straight feeder 73 Pool hopper 83 Weighing hopper

Claims (3)

[Claims] An object to be weighed contained in an object tank is discharged from a plurality of outlets provided at the bottom of the object tank, and the objects discharged from the outlets are individually supplied. A combination weighing device that supplies the weighed objects weighed by the plurality of weighing units to a plurality of weighing units via a container and discharges the weighed objects in combination based on the measurement results. An inclined surface for guiding an object to each of the discharge ports is provided for each of the discharge ports, and an elevating and lowering support member provided so as to be able to move up and down at each of the discharge ports in the weighing object tank, A gate portion having a corresponding outer shape is provided at a lower end, and an upper side is rotatably supported by the elevating support so that the gate portion can move along the inclination direction of the inclined surface of the corresponding outlet, and the elevating support is provided. When the body descends, Lowering the flow path of the object to be weighed to the discharge port by sliding it down to the corresponding discharge port side while slidingly contacting the inclined surface, and sliding the gate portion into contact with the inclined surface when the lifting support rises. A regulating body formed so as to move away from the corresponding discharge port to widen the flow path of the object to be measured to the discharge port, And a driving device for supplying an object to be weighed from each discharge port to each of the individual feeders. 2. A plurality of regulating bodies are supported on each of the lifting and lowering supports, and a flow path of an object to be weighed to a corresponding discharge port is expanded and contracted by gate portions of the plurality of regulating bodies. The combination weighing device according to claim 1, wherein: 3. An auxiliary body that moves above the outlet and assists the outflow of the object to be weighed above the outlet when the gate portion of the regulating body rises along the inclined surface of the outlet. 3. The combination weighing device according to claim 1, wherein a plurality of the weighing object tanks are provided in correspondence with the respective discharge ports.