JPH0229337B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a powder dividing device.

[Prior Art] Generally, in order to equally divide a certain total amount of powder, a storage chamber large enough to cover all the dividing chambers is provided above a plurality of dividing chambers arranged in a straight line at equal intervals. Powder is put into this storage chamber and leveled by appropriate means, and then the bottom plate of the storage chamber is opened to allow the powder to fall into each divided chamber. In addition, the storage chamber is equipped with a movable partition plate along its length so that the number of divided chambers is not always used, but the number of pieces to be used can be selected as needed. By positioning it at the end of the divided chamber in use, the apparent length of the storage chamber is adapted to the number of divided chambers in use.

[Problems to be Solved by the Invention] However, in such a conventional method, the falling distance of the powder from the storage chamber to each divided chamber must exceed the height of the partition wall between the divided chambers. It is unavoidable that the powder will blow up when it falls, and it is difficult to clean each divided chamber. Since the powder that falls from the end of the container will spread outward in the longitudinal direction of the storage chamber, the divided chambers at both ends (if a partition plate is used, the divided chamber directly below the partition plate and the divided chamber at the end) In this case, only a small amount of powder falls compared to other dividing chambers, and therefore it is extremely difficult to keep the division error small and divide the powder evenly.

An object of the present invention is to solve the above-mentioned problems of the conventional devices and provide a powder dividing device that can divide powder substantially evenly without blowing up the powder and by minimizing division errors. It is something to do.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a table on which powders are transferred from the powder storage chamber below the powder storage chamber where the powders are flattened and stored. At the same time, a cutting member is provided so as to be able to reciprocate in contact with the mounting surface of the table, and the cutting member moves forward while cutting out a predetermined amount of the powder on the table, and when moving forward, It is configured to move backward away from the powder at the boundary of the cutting area.

[Function] By employing the above-mentioned means, the falling distance of the powder transferred from the powder storage chamber onto the table is extremely small, so that blowing up of the powder does not substantially occur. , the cutting member that cuts out a predetermined amount of the powder on the table during the forward movement moves backward without touching the powder at the boundary of the cutting area during the forward movement. The amount of powder cut out is thus substantially constant.

[Example] Hereinafter, an example of the present invention shown in the drawings will be described.

1 and 2 show an embodiment of the present invention, in which 1 is a machine frame, and 2 is a powder storage chamber extending linearly from side to side in front of the machine frame 1 and having a V-shaped cross section, The length of the powder storage chamber 2 to be used is appropriately set by a partition plate 3 that is movable along its longitudinal direction, and a swing plate 4 is swung by the operation of an appropriate drive member (not shown). The bottom part can be opened and closed. Reference numeral 5 denotes a table which is provided in a straight line below and along the powder storage chamber 2, has a flat mounting surface and is arranged substantially horizontally, and the table 5 has rails 6,
6, and is adapted to be moved longitudinally at an arbitrary pitch via a pinion 8 and a rack 9 by the drive of a motor 7. Reference numeral 10 denotes a cutting device that cuts out a predetermined amount of the powder that has fallen from the powder storage chamber 2 onto the table 5. It comprises a cutting member 11 and a drive unit 12 that moves the cutting member 11 in contact with the mounting surface of the table 5. The drive unit 12 has a base end pivotally attached to a subframe 13 provided on the machine frame 1 via a support shaft 14, and a lever 16 having a cam follower 15 at its tip, and a base end pivoting at an intermediate part of the lever 16. an arm 17 which is attached to the body and holds the cutting member 11 at its tip; a cam 18 which is rotatably supported by the subframe 13; a motor 19 which rotates the cam 18 in the direction of the arrow in FIG. It is composed of a link 20 that connects the intermediate part and the cam 18, and when the cam 18 is rotated by the drive of the motor 19, the cam follower 15 is located at the small diameter part of the cam 18 and moves the cutting member 11 from the position a to the position b. After swinging the powder on the table 5 to the side, the cam follower 15 rides on the large diameter part of the cam 18 to swing the cutting member 11 from position c to position d, and finally the cam follower 15 moves from the large diameter portion of the cam 18 to the small diameter portion to return the cutting member 11 to position a. 21 is the cutting member 11
The shutter 21 is a shutter that once receives the powder that has been cut out laterally from the table 5 by the shutter 21.
When subjected to a force directed to the left in the figure, it swings around the support shaft 22 and drops the powder into the hopper 23.

24, 24, . This is a tablet storage chamber in which the tablets placed on the top fall down and are stored at once as the opening/closing plate 25 is opened, and all the tablet storage chambers 24, 24, ... are integrated. Rail 26,2
6, and is adapted to be moved in the left-right direction via a pinion 28 and a rack 29 by the drive of a motor 27. Each tablet storage chamber 24
As the tablet accommodating chambers 24, 24, ... move, the bottom plate 30 of the tablet accommodating chamber 24, .
It is designed to fall one chamber at a time. 32
1 is a shutter provided at the bottom of the tablet guide chamber 33 to temporarily catch the tablets dropped from each tablet storage chamber 24, and the shutter 32 is moved toward the left in FIG. When subjected to this force, the tablet swings around the support shaft 34 and drops the tablet into the hopper 23.

The above powder dividing device uses the entire powder storage chamber 2 by positioning the partition plate 3 at the end when the number of divided powders to be handled is large, and the partition plate 3 is placed at both ends when the number of divided powders to be handled is small. Only a part of the powder storage chamber 2 is used by positioning it at an appropriate location between the two. Powder storage chamber 2 with partition plate 3 positioned in this way
Powder to be divided is put into the usage area of the table 5, and the powder is flattened by appropriate means, and the rocking plate 4 is swung to open the bottom part and the powder is dropped onto the table 5. At this time, since the bottom of the powder storage chamber 2 is placed at a very small height from the placement surface of the table 5, the powder is placed on the table 5 rather than falling from the powder storage chamber 2.

Next, when the cutting member 11 is moved by the operation of the drive unit 12 while the table 5 is moved by the pinion 8 and the rack 9 by the drive of the motor 7 at a pitch corresponding to the predetermined number of powder divisions, the cutting member 11 is moved by the operation of the drive unit 12. When the member 11 moves from the position a to the position b, the powder on the table 5 is cut out to the side of the table 5 by the first division and is received by the shutter 21, and this powder is removed by the swinging of the shutter 21. The cutout member 11 is dropped into the hopper 23, and the cutout member 11 is
It returns to the a position via the position and the d position. In this way, the cutting member 11 passes in front of the table 5 in the moving direction when moving back from the c position to the d position than when moving forward from the a position to the b position, so that the cutting member 11 passes in front of the table 5 in the moving direction when moving back from the c position to the d position. There is no risk of touching it. Further, when the cutting member 11 moves from position a to position b again, the powder on the table 5 is cut out to the side of the table 5 by the next one division and is received by the shutter 21. The table 5 is dropped into the hopper 23 by the swinging motion, and the table 5 is dropped in the same manner.
The upper powder is sequentially cut out to the last one portion and sequentially dropped into the hopper 23. When cutting out the powder at both ends placed on the table 5 from both ends of the usage area of the powder storage chamber 2, the movement pitch of the table 5 is set slightly larger than when cutting out the powder at other parts. By doing so, almost no division error will occur.

On the other hand, a tablet is placed on the closed opening/closing plate 25, and the opening/closing plate 25 is opened to open the tablet storage chambers 24, 24.
When the tablets are dropped into the chambers 24, 24, . The objects are sequentially dropped one by one into the hopper 23 and are received by the shutter 31, and are sequentially dropped into the hopper 23 by the swinging of the shutter 31.

Therefore, for example, if an appropriate packaging device is installed below the hopper 23, it is possible not only to divide the powder only into a predetermined number of parts and package it, but also to mix and package the powder and tablets. death,
Alternatively, powder and tablets can be packed in any number of packages (for example, 1
It is possible to alternately package (one package at a time) or even only tablets, and the table 5 and the tablet storage chambers 24, 24, . . . are driven by separate motors 7, 27, respectively. up,
Since the movement pitch of the table 5 can be set freely, the number of divided powders can be set in the tablet storage chambers 24, 24, . . .
This means that it can be set arbitrarily regardless of the number of objects.

In addition, in the above embodiment, not only powders but also tablets can be used together, but it goes without saying that the tablet part may be omitted, and the powder storage chamber 2 and table 5 are not limited to linear shapes, Only when the powder is dropped from the storage chamber 2 onto the table 5, the mutual height interval may be set to a minute distance. Furthermore, in the above embodiment, the cutting member 11 is moved from the position a to the position b.
Although the configuration is such that the device is moved to the position C and then returned to the position A through the position C, the present invention is not limited to this, and the present invention can be modified in various ways to the above embodiments. Needless to say.

[Effects of the Invention] Since the present invention is configured as described above, the powder storage chamber and the table are close to each other, and the falling distance of the powder transferred from the powder storage chamber onto the table is extremely small. It is possible to substantially prevent the powder from blowing up, and
The cutting member that cuts out a predetermined amount of the powder on the table when moving forward can move backward without touching the powder at the boundary of the cutting area during the forward movement. Therefore, the amount of powder to be cut out can be kept substantially constant, and therefore, the division error can be extremely reduced and the powder can be divided substantially evenly, which has excellent effects. It is.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention, and FIG. 2 is a plan view of the main part of the device shown in FIG. 1... Machine frame, 2... Powder storage chamber, 3... Partition plate, 4...
Rocking plate, 5... Table, 6... Rail, 7... Motor, 8... Pinion, 9... Rack, 10... Cutting device, 11... Cutting member, 12... Drive unit, 13
...Subframe, 14...Spindle, 15...Cam follower, 16...Lever, 17...Arm, 18...Cam,
19...Motor, 20...Link, 21...Shutter,
21a... Actuation part, 22... Support shaft, 23... Hopper, 2
4...Tablet storage chamber, 25...Opening/closing plate, 26...Rail,
27...Motor, 28...Pinion, 29...Rack,
30...Bottom plate, 31...Support plate, 32...Shutter, 3
2a... Actuation part, 33... Tablet guide chamber, 34... Support shaft.

Claims (1)

[Scope of Claims] 1. A table to which the powder is transferred from the powder storage chamber is provided adjacently below the powder storage chamber that flattens and stores the powder, and the cutting member is placed on the table. Provided so that it can move back and forth in contact with the mounting surface,
The cutting member is characterized in that it moves forward while cutting out a predetermined amount of the powder on the table, and moves back away from the powder at the boundary of the cutting area when moving forward. Powder dividing device. 2. The powder dividing device according to claim 1, wherein the powder storage chamber is formed in a straight line. 3. The powder dividing device according to claim 1, wherein the powder storage chamber has a V-shaped cross section. 4. The powder dividing device according to claim 2, wherein the table is formed in a straight line extending along the powder storage chamber. 5. The powder dividing device according to claim 1, wherein the table has a flat surface. 6. The powder dividing device according to claim 1, wherein the mounting surface of the table is arranged substantially horizontally. 7. The cutting member cuts out the powder on the placement surface of the table to the side of the table.
Powder dividing device as described in section.