JPH0699902A - Powder and granular material filling device - Google Patents

Abstract

PURPOSE:To allow changing the volume of a measure equipped on a measure plate while powder or granular material is discharged by the measure. CONSTITUTION:A measure plate 13 is slid back and forth by a driver mounted on a slide frame. Slots 14 extending in the sliding direction are formed in the measure plate 13 and measure volume adjusting plates 15 are slidably fitted in the slots 14. Each of the measure volume adjusting plates 15 is screwed on the end of a screw shaft 30 so that the rotation of a rotary slide spindle 36 is transmitted to the screw shaft 30. A gear 43 is mounted on the rotary slide spindle 36 via a ball spline nut 42 to drive and rotate the rotary slide spindle 36 and engages with a gear 45 mounted on a second slide spindle 44. The rotation of the second slide spindle 44 is transmitted to the rotary slide spindle 36 in sliding motion, and the screw shaft 30 is rotated to make the measure adjusting plate 15 slide along the slot 14. Thereby, the volume of the measure 16 is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, when a powder or granular material such as a medicine is weighed by a predetermined amount and filled in a packaging sheet.
The present invention relates to a powder and granular material measuring device used for measuring a predetermined amount of powder and granular material.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a packaging machine for packaging a granular sheet such as a medicine by measuring a predetermined amount of each and filling a packaging sheet. This packaging machine has a powder and granular material measuring device 100 for measuring the volume of the powder and granular material by a predetermined amount, and a powder and granular material filling device 110 arranged on the lower side of the powder and granular material measuring device 100. . The powder / granular material filling device 110 is configured to fill the powder / granular material measured by the powder / granular material measuring device 100 into the packaging sheet. In the granular material weighing device 100, the hopper 101 for accommodating the granular material 102 is supplied by the roll feeder 105 into the sub hopper 108 disposed below the roll feeder, and is horizontally provided below the sub hopper 108. The granular material is supplied to the grid plate 103 arranged in this state. Slab 103
Is provided with a measuring vessel 104 that penetrates in the vertical direction,
The bottom surface of the weighing container 104 is opened and closed by a shutter 106. The measuring plate 104 is slidable in the horizontal direction, and when the bottom surface of the measuring container 104 is closed by the shutter 106, the measuring container 104 is attached to the sub hopper 1.
When it is located below 08, the measuring container 104 is filled with a predetermined amount of powder or granular material from the sub hopper 108 by the roll feeder 105. When the grid plate 103 is slid to the side of the sub hopper 108 and positioned on the powder / granular material filling device 110, the shutter 106 is slid to open the bottom surface of the weighing grid 104. As a result, the powder / granular material in the measuring container 104 is supplied to the powder / granular material filling device 110.

The powder and granule filling device 110 includes a fixed chute 111 for accommodating the powder and granules in the measuring container 104, and the fixed chute 111.
A movable chute 11 that can be moved up and down, to which the powder inside is supplied
3 and a pair of die rolls 120 and 120 arranged below the movable chute 113. Fixed chute 11
The powder and granules supplied into 1 are dropped into the movable chute 113 by opening the opening / closing plate 112 arranged on the fixed chute 111, and are supplied between the die rolls 120 and 120. . Each die roll 120 is wrapped with a thermocompression-bonding film 122, and when each die roll 120 is rotationally driven, each film 122 is formed into a bag shape, and each film is placed between both die rolls 120. Each side edge portion of 122 is heated and pressed along the width direction at appropriate intervals in the longitudinal direction while being pressed and sealed.
Then, when each film 122 is formed into a bag shape, the movable chute 113 is moved up and down in synchronization with the rotation of each die roll 120 so that the inside thereof is filled with the powdery particles, and the fixed chute 111 is also moved. The opening / closing plate 112 of is opened and closed.

In such a powder / particle measuring device 100, the powder / particle 102 is weighed by the capacity stored in the weighing container 104. For this reason, when changing and adjusting the amount of the granular material 102 to be measured, it is necessary to adjust the volume of the measuring container 104. For this reason, in the measuring cell 104, the cell volume adjusting plate 105 slidably supported on one side of the cell plate 103 is
The capacity is changed by sliding with respect to. An adjusting screw rod 107 supported by the container plate 103 is connected to the container volume adjusting plate 105 in a horizontal state, and by rotating the adjusting screw rod 107, the container volume adjusting plate 105 is rotated.
Is slid with respect to the grid plate 103.

[0005]

[Problems to be Solved by the Invention]
In the granular material measuring device in which the capacity of the measuring container 104 is changed by rotating the adjusting screw rod 107 supported by the case, when the measuring plate 103 is reciprocating to measure the granular material. In addition, since the container volume adjusting plate 105 reciprocates together with the container plate 103, the container volume adjusting plate 105 is used when measuring the granular material.
It is not possible to slide 105 and adjust the capacity of the measuring container. For this reason, when changing the capacity of the measuring container 104, the operation of the powder and granular material measuring device is temporarily stopped and the container 10
Since it is necessary to stop the reciprocating movement of 3, there is a possibility that the measuring efficiency of the powder and granules may decrease.

The present invention solves such a problem, and an object thereof is to easily and accurately change and adjust the volume of a measuring container while the powder and granular material measuring device is continuously operated. An object is to provide a powder and granular material measuring device.

[0007]

The powder and granular material measuring device of the present invention is adapted to be slid in a horizontal state by a predetermined drive source, and has a slot plate having an elongated hole portion extending along the sliding direction. And a container volume adjusting plate that is slidably arranged in the elongated hole portion of the container plate along the longitudinal direction thereof and that forms a measuring container penetrating in the vertical direction at the end of the elongated hole portion in the sliding direction. And is attached to the grid plate that is slid so that the bottom surface of the weighing grid is opened and closed,
A rotatable rotary slide shaft that is slid in the axial direction by sliding of the circular plate, and a screw shaft that is rotatably screwed to the cylindrical volume adjusting plate, and is rotated by transmitting the rotation of the rotary slide shaft. And means for rotating the rotary slide shaft in a slidable state,
Thereby, the above object is achieved.

[0008]

In the powdery- or granular-material weighing device of the present invention, the rotary slide shaft is slid back and forth in the axial direction, so that the grid plate is slid back and forth, and a predetermined amount of powder is placed in the weighing grid provided on the grid plate. The granules are filled and the granules are discharged from the measuring container. While such operation continues,
When the rotating spline shaft is rotated, the rotation is transmitted to the screw shaft, and the rod capacity adjusting plate that slides in the long hole formed in the rod plate and defines the measuring rod is moved by the rotation of the screw shaft. The volume of the measuring container is changed by sliding in the hole.

[0009]

EXAMPLES Examples of the present invention will be described below. The powdery- or granular-material weighing device of the present invention is used, for example, in a packaging machine for weighing and packing a powdery or granular medicine by a predetermined amount, and as shown in FIGS. 1 and 2, a flat plate-shaped substrate 10 and this substrate. A hopper 12 located above and along one side of 10
And have. The hoppers 12 contain powdery or granular materials such as medicines, and the bottoms of the hoppers 12 are provided with a plurality of flow-down cylinder portions 12a arranged in rows along the side portions of the grid plate 13. ing. The bottom surface of each falling tube portion 12a is open, and one slab 13 that is slidable in the horizontal direction (direction shown by arrow A in FIG. 1) along each bottom surface is arranged horizontally. There is. The grid plate 13 is slidably supported on a support plate 11 arranged on the substrate 10, and the side portion opposite to the arrangement side of each of the falling tube portions 12a is arranged on the substrate 10 in the arrow A direction. And is supported by a slide frame 35 slidably arranged. The support plate 11 is provided with through holes 11a positioned laterally in the sliding direction of the pressure plate 13 with respect to each of the falling tube portions 12a.
Drop chute 2 that extends vertically, facing each through hole 11a
0s are arranged so as to penetrate the substrate 10 in the vertical direction. Then, below each chute 20, a powder or granular material filling device for filling the powder or granular material into a predetermined packaging sheet is arranged.

As shown in FIG. 2, the grid plate 13 is provided for each flow-down cylinder portion.
A plurality of elongated holes 14 extending in the sliding direction of the grid plate 13 are provided on the side of 12a, and each elongated hole 14 is vertically penetrated. In each of the long hole portions 14, a long plate-shaped pit volume adjusting plate 15 which is slightly shorter than the long hole portion 14 is arranged so as to be slidable in the long hole portion 14 in the longitudinal direction thereof. Has been done. Then, the flow-down cylinder portion 12a of each long hole portion 14
Each of the measuring rods 16 is formed by a space between the inner surface of the end portion on the side and the end face facing the respective rod volume adjusting plates 15.
Each of the measuring basins 16 faces the bottom surface of the downflow tube portion 12a when the grid plate 13 is slid to one side in the horizontal direction, and is slid to the other side, so that each downflow tube portion 12a.
The bottom surface of the is closed by the upper surface of the grid plate 13. In this way, when the downflow tube portions 12a are closed by the upper surface of the grid plate 13, the respective weighing grids 16 face the through holes 11a of the support plate 11.

Each falling cylinder part 12a in each container volume adjusting plate 15
A bracket portion 18 which is in a vertical state with respect to the container volume adjusting plate 15 is attached to the end portion on the far side with respect to the container volume adjusting plate 15. The tip ends of the screw shafts 30 arranged in a horizontal state so as to slide in the holes 14 are screwed together.
Each screw shaft 30 is rotatably supported in a horizontal state by a pair of bearings 32 and 32 in a bearing holder 31 attached to the side of the grid plate 13 opposite to the side where the hopper 12 is arranged. Each of the screw shafts 30 is in a state of extending from the bearing holder 31, and the gear 33 is attached to each of the extended tips. In addition, compression coil springs 34 are fitted between one of the bearings 32 in the bearing holder 31 of each screw shaft 30 and the bracket portion 18, and each compression coil spring 34 has a corresponding volume capacity adjusting plate. Fifteen is pressed toward each of the flow-down cylinder portions 12a.

A side portion of the grid plate 13 provided with a bearing holder 31 for supporting each screw shaft 30 is supported on a slide frame 35, and the slide frame 35 is, for example, a rotary slide using a ball spline shaft. Each of the shafts 36 is attached to one end of the shaft 36. Each rotary slide shaft 36
Is a pair of support plates 40 and 40 mounted on the substrate 10 so as to be in a vertical state at a predetermined interval,
Each is supported horizontally. Rotary slide shaft 36
Is rotatably attached to the slide frame 35 by a bearing 37, and has a screw shaft at one end thereof.
A gear 38 is mounted which meshes with a gear 33 mounted at the end of 30. Each rotary slide shaft 36 is rotatably and slidably supported in the axial direction by bearings 41 and 41, respectively, with respect to the respective support plates 40 and 40. Then, each grid plate 13 is integrally reciprocated in the direction indicated by arrow A by a drive source (not shown) attached to the slide frame 35, and the reciprocating movement causes the rotary slide shaft 36 to move in the axial direction. It will be moved back and forth.

Gears 43 are fitted between the support plates 40 of the rotary slide shafts 36 via ball spline nuts 42 in a state of being axially positioned.
Each of the gears 43 is in a state of being slidable in the axial direction by the ball spline nut 42 with respect to the rotary slide shaft 36 communicating with the inside thereof.
Can rotate integrally with the rotary slide shaft 36. Each gear
Above the 43, each support plate 40 is parallel to each rotary slide shaft 36.
A second slide shaft 44 supported by each is arranged. Each second slide shaft 44 has a ball spline nut 49.
The slide plate is slidable and rotatable with respect to each support plate 40. At the center of each second slide shaft 44,
A gear 45 that meshes with a gear 43 attached to each rotary slide shaft 36 is attached.

Downflowing cylinder portion 12a of each second slide shaft 44
The individual adjustment handles 46 are attached to the ends on the far side from, and each individual adjustment handle 46 is pressed against the flow-down cylinder portion 12a (in the direction indicated by the arrow B) to perform a rotary operation. The second slide shaft 44 is slidable and rotatable in the axial direction. Handle for each individual adjustment
Between the 46 and the ball spline nut 49 supported by the one support plate 40, compression coil springs 47 are arranged so as to be fitted onto the respective second slide shafts 44. Each compression coil spring 47 has a corresponding second slide shaft 44.
The whole is urged in a direction away from the falling tube portion 12a. Each second slide shaft 44 is attached to each compression coil spring 47.
It is configured to be slidable in the axial direction by a predetermined distance D from the state of being biased by. Each second slide shaft 44
The gears 45 attached to the gears are always in mesh with the respective gears 43 attached to the rotary slide shafts 36 even when the second slide shafts 44 slide a predetermined distance D.

Above each of the second slide shafts 44, transmission shafts 50 parallel to the respective second slide shafts 44 are rotatably supported by bearings 48 on the support plates 40. . Each transmission shaft 50 is designed so as not to slide in the axial direction.
Gear 51 that meshes with gear 45 mounted on slide shaft 44
Are attached respectively. Each gear 51 is in a state of meshing with the gear 45 of each second slide shaft 44 when each second slide shaft 44 is biased by the compression coil spring 47, but each second slide shaft 44 is Downflow tube part 12
When the state is slid by the distance D toward the a side (direction indicated by arrow B), the meshing with each gear 45 is disengaged.

As shown in FIGS. 2 and 3, the end of each transmission shaft 50 on the side of the plate 13 extends from the support plate 40 to the side of the plate 13, and the bevel gear 52 is attached to the end thereof. Each is installed. The bevel gears 53 are meshed with the bevel gears 53 attached to one connecting shaft 54 arranged in a horizontal state orthogonal to the transmission shaft 50. Above the connecting shaft 54, one input shaft 56 parallel to the connecting shaft 54 is disposed in a horizontal state, and at one end of each of the connecting shaft 54 and the input shaft 56 facing each other. Are fitted with intermeshing input gears 55 and 58, respectively. And
At the other end of the input shaft 56, a simultaneous adjustment handle 59 for simultaneously moving the container volume adjusting plates 15 integrally.
Is attached.

The operation of the powdery- or granular-material weighing device having such a configuration is as follows. Prior to weighing the granular material, the volume of each measuring container 16 filled with a predetermined amount of the granular material is adjusted. Each of the measuring basins 16 has a long hole portion 14 formed in the grid plate 13, and the long hole portion 14
It is defined by a space formed by a volume adjusting plate 15 that slides inside, and each volume adjusting plate 15 has a long hole 14
The volume of the measuring container 16 is adjusted by sliding the inside. The volume of all the measuring basins 16 is adjusted by rotating the simultaneous adjustment handle 59. When the simultaneous adjustment handle 59 is rotated, the input shaft 56 is rotated by a predetermined amount, and the rotation amount is transmitted to the connecting shaft 54 via the gear 58 and the gear 55. When the connecting shaft 54 rotates,
All bevel gears 53 attached to the connecting shaft 54 rotate, and each bevel gear 52 meshed with each bevel gear 53 rotates.

When each bevel gear 52 is rotated, each transmission shaft 50 to which each bevel gear 52 is attached is also rotated, and each gear 51 attached to each transmission shaft 50 is also integrally rotated. It Then, the rotation of each gear 51 is transmitted to each gear 43 attached to each rotary slide shaft 36 via each gear 45 attached to the second slide shaft 44. Since each gear 43 is externally fitted to each rotary slide shaft 36 via the ball spline nut 42, the rotary slide shaft 36 is rotated by the rotation of each gear 43, and the rotary slide shaft 36 is rotated by the gear 38. And each screw shaft through gear 33
The respective screw shafts 30 are transmitted to the respective screw shafts 30 and are rotated. When each screw shaft 30 is rotated, since the bracket portion 18 is screw-coupled to the end of each screw shaft 30, each container volume adjusting plate 15 is integrated with the screw shaft 30 in the axial direction. Then, the volume of each measuring container 16 defined by the gap between the tip surface of the container volume adjusting plate 15 and the inner surface of the elongated hole portion 14 is changed.

In this way, when each measuring container 16 is adjusted to a predetermined volume, the driving plate (not shown) causes the container plate 13 to slide toward the flow-down cylinder portion 12a. And slab 1
When 3 is slid along the open bottom surface of each flow-down cylinder 12a in the hopper 12 and each measuring rod 16 is positioned below the flow-down pipe 12a in an aligned state, the hoppers are placed inside each measuring rod 16.
Granules inside 12 fall. As a result, each of the measuring basins 16 is filled with the powdery or granular material, and then the grid plate 13 is slid in the opposite direction. As a result, the powder or granular material that does not fit in each measuring container 16 is in a state of being scraped off by the side surface of the falling tube portion 12a, and each measuring container 16 is filled with a predetermined amount of powder. become. Then, by sliding the grid plate 13, when each measuring grid 16 is in a state of facing the through hole 11a of the support plate 11, a predetermined amount of powder or granules accommodated in each measuring grid 16, the through hole 11a. It passes through and falls into the chute 20, and is supplied to the powder and granular material filling device through each chute 20. After that, the grid plate 13 is moved in the opposite direction, and thereafter, the grid plate 13 is reciprocally moved, so that a predetermined amount of the granular material is sequentially dropped into each chute 20.

Even during such a metering operation, if it is necessary to adjust the amount of powder or granules filled in each measuring container 16 at the same time, the simultaneous adjustment handle 59 is rotated as described above. It In this case, the rotary slide shafts slid along the axial direction in order to reciprocate the grid plate 13.
36 is a gear to which the rotation of the simultaneous adjustment handle 59 is transmitted.
Since 43 is fitted through the ball spline nut 42, even if the rotary slide shaft 36 slides in the axial direction, the rotation of the gear 43 hinders the axial slide. Instead, it is reliably transmitted to the rotary slide shaft 36. Therefore, even if the grid plate 13 is slid by the sliding of the rotary slide shaft 36, the grid volume adjusting plates fitted in the long hole portions 14 of the grid plate 13 respectively.
15 slides in each slot 14 all at once,
The volume of is changed integrally.

In addition, during operation of the powdery or granular material measuring device,
When it is necessary to individually change and adjust only the volume of one of the measuring cells 16, the individual adjustment handle 46 to which the cell volume adjusting plate 15 of the measuring cell 16 whose volume is to be changed is connected.
Are pushed in the direction indicated by arrow B. This allows
The second slide shaft 44 is slid in the direction of arrow B, and the gear 45 attached to the second slide shaft 44 is slid by a predetermined amount D. Thereby, the gear 45 and the transmission shaft 50
The meshing with the gear 51 attached to is released. At this time, the gear 45 attached to the second slide shaft 44 is the gear 43 attached to the rotary slide shaft 36.
The mesh volume adjustment plate 15 that maintains the meshed state with the mesh volume adjustment plate 15 that defines the predetermined measuring cell 16 whose volume is changed is released from the connection state with the other cell volume adjustment plate 15 and the volume volume adjustment is performed. Board
Only 15 is in a state where it can slide in the long hole portion 14. Then, by rotating the individual adjustment handle 46, the rotary slide shaft 36 in the state of being reciprocally slid in the axial direction is rotated, and the container volume adjusting plate 15 defining the measuring container 16 whose volume is to be changed. Is relatively slid in the slot 14 in the axial direction. As a result, the volume of only the predetermined measuring container 16 is changed. The present invention is not limited to such an embodiment, and for example, the input shaft 56 or the second slide shaft 44 may be used.
Is rotated by a drive source such as a motor,
By measuring the amount of powder or granular material measured in each measuring container 16 and controlling the drive source for rotating the input shaft 56 or the second slide shaft 44 based on the measurement result, each measuring container 16 A predetermined amount of powder is automatically weighed by.

[0022]

As described above, the powdery- or granular-material measuring device of the present invention cuts out a predetermined amount of powdery or granular material from the measuring-basin provided on the grid-board while the grid-board slides back and forth.
Since the rotary slide shaft is rotated during the cutting of the granular material, the volume adjusting plate that regulates the volume of the measuring container is slid in the long hole provided in the measuring container, so that the granular material is It is possible to reliably change the cut amount of the granular material without interrupting the cutting operation of. Moreover, the capacity of a large number of cells provided on the cell board can be adjusted all at once by one-touch operation.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a powdery or granular material measuring device of the present invention.

FIG. 2 is a perspective view of a main part of the powdery or granular material measuring device.

FIG. 3 is a plan view of a main part of the powdery or granular material measuring device.

FIG. 4 is a cross-sectional view showing an example of a packaging machine in which a conventional powder / grain measuring device is used.

[Explanation of symbols]

 10 Base plate 13 Wall plate 14 Long hole 15 Wall volume adjusting plate 16 Measuring wall 20 Chute 30 Screw shaft 36 Rotary slide shaft 42 Ball spline nut 43,45 Gear 46 Individual adjustment handle 56 Input shaft 59 Simultaneous adjustment handle

Claims (1)

[Claims] 1. A slab that is adapted to be slid in a horizontal state by a predetermined drive source and has an elongated hole extending along the sliding direction, and a longitudinal direction in the elongated hole of the slab. A slender volume adjusting plate that is slidably disposed along the slot and that forms a sling vertically extending at a sliding direction end of the elongated hole, and a bottom surface of the sling that can be opened and closed. A rotary slide shaft that is attached to the grid plate and that is slidable in the axial direction by sliding the grid plate, and that is rotatably screwed to the grid volume adjusting plate. The powdery- or granular-material weighing device, comprising: a screw shaft that is rotated by transmitting the rotation of the rotary shaft; and a unit that rotates the rotary slide shaft in a slidable state.