JPH10119903A - Quantitative supplying equipment for powder and equipment for making throw-away body-warmer using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a quantitative supply of powder at a high speed and to simplify construction. SOLUTION: This supplying equipment includes a supply drum 5, a chute 6 and a distribution member 9 which is provided downstream of the chute 6 and is for distributing a predetermined amount of powder body. In this case, the first and the second quantitative pockets, 11a, 11b, which the distribution member 9 goes through, are formed able to move back and forth in a horizontal direction. Below and apart from the chute 6, a bottom panel 12 is fixed for closing only the bottom of either the first or the second quantitative pocket 11a, 11b. Furthermore, a driving roller 10 for moving the distribution member 9 horizontally is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for quantitatively supplying powder (hereinafter referred to as a "supply apparatus") and an apparatus for manufacturing disposable warmers using the apparatus. In more detail, when powder such as iron powder and water retention agent, which are raw materials for disposable warmers, are mixed and then a predetermined amount of mixed powder is packed in a bag, the powder can be supplied at a high speed at a constant rate. The present invention also relates to a supply device having a simple configuration and a disposable body warmer using the same.

[0002] In this specification, the term "powder" is a concept including fine particles, coarse particles, and mixtures thereof.

[0003]

2. Description of the Related Art Conventionally, as a technique for mixing and filling two or more kinds of powders such as iron powder and a water retention agent (oxidizing agent), which are raw materials of a disposable body warmer, a powder mixing apparatus such as a twin-screw mixer or the like has Then, the powder and water are mixed, and then the mixed powder is transferred to a hopper of a packaging mechanism main body by a transfer means such as a belt conveyor, and then the powder is quantitatively supplied to the packaging section in the packaging mechanism main body. While the powder is being continuously packed into a bag having air permeability, it has been practiced.

When a fixed amount of powder is supplied from a hopper to a packaging section, a supply drum provided at an outlet of the hopper, a chute provided downstream of the outlet of the hopper, and a downstream side of the chute have conventionally been used. And a distributing member having a single row of fixed quantity pockets for distributing a predetermined amount of powder.

The metering pocket is a penetrating space having a predetermined volume formed in the distributing member. When filling and transferring the powder, the lower opening of the metering pocket is closed by the bottom plate. You. When transferring the powder, the distribution member and the bottom plate move while being connected to each other. When discharging the powder from the metering pocket, the connection between the distribution member and the bottom plate is released, and only the distribution member moves to supply the powder to the downstream hopper.

According to this conventional supply device, the supply drum provided at the outlet of the hopper is rotated to supply the powder to the chute at a substantially constant speed, and then the powder is supplied to the fixed quantity pocket set at the downstream end of the chute. Filling a predetermined amount of powder while closing the lower end opening with the bottom plate, and then moving the distribution member and the bottom plate to move the fixed amount pocket to a predetermined position and supply the powder to the packaging unit, After the supply, the dispensing member is moved to return the fixed amount pocket to the downstream end of the chute again, thereby performing the fixed amount supply of the powder.

[0007]

However, in the conventional feeding device, the distance between the position where the fixed quantity pocket fills the powder at the downstream end of the chute and the position where the powder is supplied to the packaging mechanism body is one. Since the supply operation is performed once when reciprocating, there is a disadvantage that the speed of supplying the powder to the packaging unit is low.

In addition, the structure is complicated to connect and separate the distribution member and the bottom plate from each other, and the supply speed cannot be increased so much to keep the supply amount within a certain error range, which limits the production efficiency. was there.

On the other hand, it is conceivable to provide two or more of the above-mentioned supply devices above the hopper of the packaging mechanism and to operate them sequentially. However, there is a problem that a large space is required and the equipment cost is high. .

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides a supply device which can supply a fixed amount of powder at a high speed and has a simple structure and a disposable body warmer using the same. The purpose is to do.

[0011]

According to the present invention, there is provided a supply device comprising: a supply drum provided at an outlet of a hopper for storing powder; a chute provided downstream of the outlet of the hopper; A distributing member for distributing a predetermined amount of powder, the dispensing device being provided on the downstream side of The bottom plate for closing only the bottom of a part of the plurality of quantitative pockets is fixed at a position spaced downward with respect to the chute. Is provided with horizontal driving means for horizontally moving.

The distributing member is capable of reciprocating in the horizontal direction, a pair of penetrating quantitative pockets is formed at least in the reciprocating direction, and the horizontal driving means reciprocates the distributing member in the horizontal direction. Preferably.

The distributing member has a plurality of fixed quantity pockets arranged in a circle and is rotatable in a horizontal plane, and the horizontal driving means is configured to rotate the distributing member in a horizontal plane. preferable.

Further, in the disposable body warmer manufacturing apparatus using the supply apparatus of the present invention, a main body of a packaging mechanism for sealing the mixed powder with a gas permeable base material is attached downstream of the distribution member. It is characterized by becoming.

In the supply device of the present invention, since a plurality of fixed quantity pockets penetrating the distribution member are formed, the fixed quantity supply of powder can be continuously performed by horizontally moving the distribution member.

Specifically, first, a part of the plurality of quantitative pockets is moved to a position immediately below the supply drum, and the lower opening is closed by a bottom plate fixed below the chute. Then, the powder in the chute is filled into the quantitative pocket. Next, the distributing member is moved horizontally, and the fixed amount pocket filled with the powder is moved to a position off the chute and the bottom plate to supply the fixed amount of powder to the downstream packaging machine body or the like. At this time, a part or all of the other quantitative pockets move to a position immediately below the supply drum, so that the lower opening is closed by the bottom plate fixed below the chute in the same manner as described above. The powder in the he chute can be filled. After that, the distributing member is moved horizontally, and the fixed amount pocket filled with the powder is moved to a position off the chute and the bottom plate to supply the fixed amount of the powder to the packaging portion of the downstream packaging machine body.
As a result, the powder can be quantitatively supplied at a high speed while maintaining the same supply amount accuracy as in the related art.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a supply device according to the present invention; FIG. 1 is an explanatory sectional view showing an embodiment of a disposable body warmer using the supply device of the present invention, FIG. 2 is an explanatory sectional view showing a process of quantitative supply of powder in a quantitative supply section in FIG. 1, and FIG. FIG. 9 is an explanatory plan view of a main part near a distribution member showing another embodiment of the supply device of the present invention.

FIG. 1 shows an embodiment of the present invention in which a disposable body warmer powder mixing mechanism 31 (hereinafter simply referred to as a mixing mechanism), a charge hopper 1 (hereinafter referred to as a hopper) and a packaging mechanism main body 2 are sequentially lowered. 1 shows a disposable body warmer manufacturing apparatus arranged in the company.

Specifically, a hopper 1 for storing the mixed powder discharged from the discharge port 20 of the mixing cylinder 32 is connected to the downstream of the mixing mechanism 31 as a packaging mechanism. The lower end outlet 1a is provided with a packaging mechanism main body 2 for packaging the mixed powder with an air-permeable base material and processing the base material into a sealed bag, thereby producing a disposable body warmer. The device is configured.

The main body 2 of the packaging mechanism is composed of a fixed amount supply unit 3 and a packaging unit 4. Here, the fixed amount supply unit is an embodiment of the supply device of the present invention.

The mixing mechanism 31 is a device for mixing and stirring iron powder and other additives (water retention agent, water, etc.), which are the raw materials of the disposable body warmer, inside the mixing cylinder 32 while being isolated from air. At the lower end of the mixing cylinder 32, a shutter 19 for opening and closing a discharge port 20 formed in the lower lid 21 is provided.

The fixed amount supply section 3 is a section for supplying the powder inside the hopper 1 to the packaging section 4 by the volume filled in one bag of the disposable body warmer.
a supply drum 5, a chute 6, a swinging plate 7 swingably provided inside the chute 6, a distribution member 9 movable below the chute 6 in a horizontal direction, and a distribution member. Roller 9, horizontal plate 12, guide chute 24, first individual chute 13
And a second individual chute 15.

The supply drum 5 is a cylindrical member having a groove formed on the outer peripheral surface along a direction perpendicular to the paper surface. The powder dropped from the hopper 1 is first supplied to the supply drum 5
The powder stored in each groove is quantitatively dropped into the chute 6 as the supply drum 5 rotates.

The oscillating plate 7 is provided so as to be able to oscillate around the rotary shaft 7a, and moves to the left in the figure when the supply amount of the mixed powder into the chute 6 becomes too large, and is separately provided. The rotation of the supply drum 5, that is, the supply of the mixed powder is stopped by acting on a limit switch (not shown) or the like.

The distributing member 9 is a plate-like member in which a plurality of sets of first and second fixed amount pockets 11a and 11b having a volume equivalent to one bag are arranged on a measuring square 23 in a direction perpendicular to the plane of the paper. And is supported movably in the horizontal direction by rails (not shown) or the like. First and second
The fixed-quantity pockets 11a and 11b are spaces opened up and down, and the lower ends thereof are sealed by a fixed bottom plate 12 at a position immediately below the supply drum 5 so that powder does not leak. The distribution member 9 can be moved until each of the first and second fixed amount pockets 11 a and 11 b comes from a position immediately below the supply drum 5 to a position separated from the chute 6 and the bottom plate 12.

The bottom plate 12 is fixed at a position spaced downward from the chute 6, and closes only the bottom of a part of the plurality of first and second quantitative pockets 11a and 11b. Can be. Therefore, when the powder is filled from the chute 6 into one of the first and second quantitative pockets 11a and 11b, the bottom plate 12 closes only the bottom of the filled quantitative pocket.

The guiding chute 24 is provided with the first and second fixed quantity pockets 1 moved to a position separated from the bottom plate 12.
This is a chute for guiding the powder dropped from 1a and 11b to a first individual chute 13 described later.

The first individual chutes 13 are fixed chutes arranged corresponding to each of the first and second fixed quantity pockets 11a and 11b, and a shutter 14 swings at the outlet thereof. It is provided freely.

The second individual chute 15 is a vertically movable chute provided for each pair of the first and second quantitative pockets 11a and 11b. The second individual chute 15 moves in a vertical direction at a predetermined cycle by a driving cam mechanism (not shown) or the like.

In the first individual chute 13, the shutter 14 is previously opened, and the powder is allowed to freely fall on the second individual chute 15. After the supply of the powder to the second individual chute 15 is completed, the shutter 14 is closed in conjunction with the movement of the distribution member 9, thereby preventing the remaining powder from dropping.

Finally, while the second individual chute 15 is vertically moved at a predetermined cycle by the driving cam mechanism (not shown) or the like, the powder is packed in the packaging section 4 (specifically, a pair of die rolls). 16), the powder can be smoothly packed in order from the back of the bag manufactured by the packaging unit 4. That is, at the initial stage of filling one bag, the second individual hopper 15 is at the lower end position, and rises in synchronization with the rotation of the die roll 16.
The above-described series of quantitative supply of powder is repeatedly performed.

In this embodiment, a plurality of sets of fixed quantity pockets 11a and 11b are provided so as to be suitable for mass production, and a plurality of guide chutes 24 and a plurality of first and second individual chutes 13 and 15 are provided. However, the present invention is not limited to this, and it goes without saying that only one set of the fixed amount pockets 11a and 11b and one guide chute 24 and the like may be provided. Nor.

The packaging section 4 includes a pair of die rolls 16 for heat sealing, and a heater H for heating is built in the die rolls 16. Moreover, on the outer peripheral surface of the die roll 16, rectangular concave portions 18 corresponding to the shape of the front surface or the rear surface of the bag to be manufactured are formed at equal intervals along the axial direction and the circumferential direction of the die roll 16.
Also, the ridge 17 is formed along the outer peripheral edge of the concave portion 18.
Are provided in the axial direction and the circumferential direction of the die roll 16 respectively.

When the pair of die rolls 16 rotate in the direction of winding the pair of air-permeable base materials B, the ridges 17 extending in the axial direction of the die rolls 16 face each other every 120 degrees. And the side edges of the base material B can be heat-sealed by a ridge 17 (not shown) extending in the circumferential direction of the die roll 16. Therefore, a pair of die rolls 16 rolls up a pair of base materials B, whereby bags can be continuously formed. Since the second individual hopper 15 of the fixed amount supply unit 3 is disposed above the intermediate position between the pair of die rolls 16, powder is formed between the pair of die rolls 16 from the hopper 15 while forming a bag. Can be dropped,
Bagging of powder can be performed continuously.

The bags made continuously are individually cut and separated by a conventionally known method, and then inspected for empty bags or not.

With this configuration, when the fixed amount supply unit 3 supplies the fixed amount of powder to the packaging unit 4, first, as shown in FIGS. The powder in the chute 6 is filled into the first fixed amount pocket 11a while being moved to a position immediately below and closing the lower opening with the bottom plate 12 fixed below the chute 6 (see FIG. 2A). ).

[0037] Then, as shown in FIG. 2 (b), by rotating in a clockwise direction by a drive roller 10 motor (not shown), is moved horizontally the distribution member 9 in the direction of arrow A _1, flour The first fixed amount pocket 11a filled with the body P is moved to a position off the chute 6 and the bottom plate 12, and the guiding chute 24,
A fixed amount of the powder P is supplied via the first individual chute 13 and the second individual chute 15. At this time, the other second fixed amount pocket 11b is moved to a position immediately below the supply drum 5, thereby closing the lower opening with the bottom plate 12 fixed below the chute 6 as described above. The powder P in the chute 6 can be filled into the fixed amount pocket 11b.

Thereafter, as shown in FIG.
The distributing member 9 is moved horizontally in the direction of arrow A2, and the _second fixed amount pocket 11b filled with the powder P is moved to a position outside the chute 6 and the bottom plate 12, and the downstream packaging is performed in the same manner as described above. A fixed amount of the powder P is supplied to the section 4.

As described above, the powder can be quantitatively supplied at a high speed while maintaining the same accuracy as that of a conventional supply device having one quantitative pocket. Further, the supply speed can be easily increased only by increasing the reciprocating speed of the distribution member 9 and the rotation speed of the supply drum 5.

In the quantitative supply section (apparatus) shown in FIGS. 1 and 2, the distribution member 9 has a pair of penetrating quantitative pockets 11a,
11b is formed, and the distribution member 9 reciprocates in the horizontal direction. However, the present invention is not limited to this, and other configurations may be adopted as long as the distribution member is formed with a plurality of penetrating quantitative pockets and is movable in the horizontal direction.

For example, as another embodiment, as shown in FIG.
4 may be arranged in a circle, and may be rotatably moved in a horizontal plane by a rotating shaft 35 to which power is transmitted from a driving motor and a speed reducer (neither is shown). The chute 6 (see FIG. 1) is disposed above the circle C in which the fixed amount pockets 34 are arranged, and the bottom plate 36 and the guiding chute 37 are disposed below the circle C. The chute 6 and the bottom plate 36 are arranged in a direction perpendicular to the paper surface. The bottom plate 36 and the guiding chute 37 are separated from each other by a pitch between two adjacent fixed quantity pockets 34, and a leak prevention plate 38 is provided therebetween. The other configuration is the same as that of the disposable body warmer manufacturing apparatus of FIG.

With this configuration, first, the powder P is placed in a certain fixed amount pocket 34 while the lower opening is closed by the bottom plate 36.
Is filled. Next, the distribution member 33 is rotated counterclockwise around the rotation axis 35, and the fixed amount pocket 34 filled with the powder P is rotated counterclockwise while closing the lower opening with the leakage prevention plate 38, A fixed amount of powder is supplied to the packaging section 4 (see FIG. 1) and the like through the guiding chute 37. As a result, the powder can be quantitatively supplied at a high speed while maintaining the same accuracy as in the related art.

[0043]

According to the present invention, a fixed amount of powder can be supplied at a high speed, and the structure is simple. Therefore, the supply device of the present invention can be suitably applied as a fixed-quantity supply unit of a disposable body warmer.

When the supply device of the present invention is required to supply a fixed amount of powder at a high speed, it can be applied to, for example, a powder filling and packaging of foods, medicines and the like.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing one embodiment of a disposable body warmer manufacturing apparatus using a supply device of the present invention.

FIG. 2 is an explanatory sectional view showing a process of quantitatively supplying powder in a quantitative supply section of FIG. 1;

FIG. 3 is an explanatory plan view of a main part near a distribution member showing another embodiment of the supply device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Charge hopper 2 Packaging mechanism main body 3 Quantitative supply part 5 Supply drum 6 Chute 9 Distributing member 10 Drive roller 11a 1st constant amount pocket 11b 2nd constant amount pocket 12 Bottom plate

Claims (4)

[Claims] 1. A supply drum provided at an outlet of a hopper for storing powder, a chute provided at a downstream side of the outlet of the hopper, and a predetermined amount provided at a downstream side of the chute. A powder dispensing device for distributing the powder, wherein the dispensing member has a plurality of penetrating quantitative pockets formed therein and is movable in a horizontal direction; A bottom plate for closing only the bottom of a part of the plurality of quantitative pockets is fixed to a position spaced downwardly from the plurality of quantitative pockets, and a horizontal plate for horizontally moving the distributing member. A powder quantitative supply device comprising a driving unit. 2. The distributing member is reciprocally movable in a horizontal direction, a pair of penetrating quantitative pockets is formed at least in the reciprocating direction, and the horizontal driving means reciprocates the distributing member in a horizontal direction. The powder quantitative supply device according to claim 1, wherein 3. The distributing member has a plurality of fixed quantity pockets arranged in a circle and is rotatable in a horizontal plane, and the horizontal driving means is configured to rotate the distributing member in a horizontal plane. The powder quantitative supply device according to claim 1. 4. A disposable body warmer using the powder metering device according to claim 1, wherein the powder mixed downstream of the distribution member is hermetically sealed by a gas-permeable base material. An apparatus for manufacturing a disposable body warmer, comprising a main body of a packaging mechanism.