CA1099676A - Constant feeding apparatus - Google Patents
Constant feeding apparatusInfo
- Publication number
- CA1099676A CA1099676A CA327,253A CA327253A CA1099676A CA 1099676 A CA1099676 A CA 1099676A CA 327253 A CA327253 A CA 327253A CA 1099676 A CA1099676 A CA 1099676A
- Authority
- CA
- Canada
- Prior art keywords
- turning member
- raking
- feeding apparatus
- depressing
- constant feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1409—Arrangements for supplying particulate material specially adapted for short fibres or chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Nozzles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Specific Conveyance Elements (AREA)
Abstract
Abstract A constant feeding apparatus in which a material sup-plied from a supplying part is fed to a raking part by means of a turning member of a circulating part, said raking part is provided with a turning member which rakes up the material and feeds it to a discharging outlet and said turning member of the raking part is arranged to oppose a depressing means for depressing the raked-up material against the turning member and a discharging means which discharges the material from the turning member toward the material outlet.
Description
1(3~9676 Detalled Descri~tion of the Invention `~ The present invention relates to a constant feeding apparatu - for use mainly in spraying work of rock wool, etc.
Materlals which have conventionally been used in this type o spraying wor~ are powdery materials such as, for example, cement, vermiculite and pearlite and fibroid grains such as rock wool, asbestos, glass wool, pulp cotton, etc.
and mixtures of these materials. Since theso materials have less mutual entangling characteristic, the material to be sprayed can be engaged among needle type projections by turning the turning member provided wlth needle type projecti as described ln Japanese Patent Gazette No. 30342/ 1973 in th~
constant feedinq.
However, fibroid material~ which are main materials are made ~ up by proces~ing the materials which have originally long : fiberq in the form of layered structure or continuous cotton into a:g~.a~lar.shape and therefore these materlals are advantageeus in that the processes can be omitted if they can `~t --1--' - '. : ' :
1(~9~676 be used as spraying materials without processing into granular materials.
On the other hand, the fibroid materials are disadvantageous in that they have strong entangling characteristic and therefore the materials will stay on only the extreme ends o~ needle type projections and will not be held among needle type projections when the material to be sprayed is supplied to the conventional feeding device and accordingly the material is rejected at the supply side by the feed amount limiting means such as a brush which comes in contact with the turniny member.
The present invention is intended to provide an apparatus capable of constantly feeding a fixed amount of not only con-ventional materials but also even the materials with strong entangling characteristic as described above.
In one asp~ct of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking mean~ are provided and adapted to convey the material sent from 9967~i said circulati.ng part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and a material outlet and discharge the material toward the material outlet.
In accordance with a further aspect of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and ~aid turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back, at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which rakin~ means are provided and adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the mat-erial against said raking means by the turning member to forcibly ~ -2~-.~:
1(~99676 engage the material being fed with the raking means,and said discharging means is adapted to separate the material from the turning member of said raking part between said depress-ing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized to be adapted so that said depressing means is provided with a cleaner which cleans said turning member and said cleaner removes off the material staying on the turning member of the depressing means in the direction of the circu-lating part.
In accordance with a still further aspect of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the ra~ing part and feed back, at a side above the turning member, the material remaining in a space be-tween the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking means are provided and
Materlals which have conventionally been used in this type o spraying wor~ are powdery materials such as, for example, cement, vermiculite and pearlite and fibroid grains such as rock wool, asbestos, glass wool, pulp cotton, etc.
and mixtures of these materials. Since theso materials have less mutual entangling characteristic, the material to be sprayed can be engaged among needle type projections by turning the turning member provided wlth needle type projecti as described ln Japanese Patent Gazette No. 30342/ 1973 in th~
constant feedinq.
However, fibroid material~ which are main materials are made ~ up by proces~ing the materials which have originally long : fiberq in the form of layered structure or continuous cotton into a:g~.a~lar.shape and therefore these materlals are advantageeus in that the processes can be omitted if they can `~t --1--' - '. : ' :
1(~9~676 be used as spraying materials without processing into granular materials.
On the other hand, the fibroid materials are disadvantageous in that they have strong entangling characteristic and therefore the materials will stay on only the extreme ends o~ needle type projections and will not be held among needle type projections when the material to be sprayed is supplied to the conventional feeding device and accordingly the material is rejected at the supply side by the feed amount limiting means such as a brush which comes in contact with the turniny member.
The present invention is intended to provide an apparatus capable of constantly feeding a fixed amount of not only con-ventional materials but also even the materials with strong entangling characteristic as described above.
In one asp~ct of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking mean~ are provided and adapted to convey the material sent from 9967~i said circulati.ng part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and a material outlet and discharge the material toward the material outlet.
In accordance with a further aspect of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and ~aid turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back, at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which rakin~ means are provided and adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the mat-erial against said raking means by the turning member to forcibly ~ -2~-.~:
1(~99676 engage the material being fed with the raking means,and said discharging means is adapted to separate the material from the turning member of said raking part between said depress-ing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized to be adapted so that said depressing means is provided with a cleaner which cleans said turning member and said cleaner removes off the material staying on the turning member of the depressing means in the direction of the circu-lating part.
In accordance with a still further aspect of the present invention, there is provided a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the ra~ing part and feed back, at a side above the turning member, the material remaining in a space be-tween the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking means are provided and
-2 ~
.
.
1~39~676 adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning memher and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized so that the turning member of said depressing means is provided with needles on its outer periphery by which the material is depressed against the turning member of the raking part and the turning member of the raking part is provided with needles which are arranged as the raking mean~ to pass through among the needles on the depressing means side and so that the peripheral speed of the turning member of said depressing means is relatively slower than that of the turning member of said raking part.
., .S
., ,. ~
-2c-. .
r--~a9~676 of compressed air supplied from the compressed air supply hose 211 to add water to a spray material such as rock wool ~prayed from the spray hose 11.
The apparatus 1, as shown in Figure 2, is provided with the chamber 3, supplying part 5 for the material 4 disposed on this chamber 3, circulating part 6 provided following the material supplying part 5, raking part 7 and material ~.
depressing means 8 and material discharging part 9 which are arran~ed to oppose the raking part.
Said supplying part 5 is designed in accordance with a kind of material and can be a material supplying port, for example, the hopper 51. In the embodiment, the forwarding member 52 is provided. This forwarding member 52 continuGusly feeds the material to the circurating part 6 and is provided with an appropriate number of stirring rods 521 to prevent the material 4 supplied ~rom causing bridge phenomenon, and the stirring rods are rotated in the arrow head direction to discharge the material 4 along the inner surface 31 of the chamber 3.
A plural number of forwarding members.52:can.b.e ~roY.ided,.and a ~crew conveyor, belt conveyor or the turn~ng member as employed in the raking part 7 which i8 described later can be employed. In any ~ase, the forwardinq members should be arranged to feed the material 4 into a space below the circulating part 6.
:
, . .. ,. : : .
~oa~7~
Said circulating part 6 is provided with the turning member 61 opposing the wall 32 of the chamber 3 through the specified space Sl and adapted to feed the materiàl 4 to be supplied to the space Sl from the supplying part 5 toward the raking part 7 at a sid~ below the turning member 61 and feed back the material 4 xemaining in the space S2 fro~ the raking means 7 side toward the supplying part 5 at a side above the turning member. For example, as shown in Figure 2, the circulating part 6 is provided with a turning member 61 of which concaved surface 611 is formed in the përipheral direction.
This turning member can be made in another construc~ion as shown in Figure 3. That is,rthe turning member can be provided with engaging projections 612 made of wire or plates on its outer periphery as shown in Figure 3A, a basket type receiving pa~t 613 as shown in Figure 3B, uneven surface 614.
as shown in Figure 3C, or smoothed surface 615 a~ ~hown in Figure 3D or the turning member can ~e made as a multi-shaft turning member which has a endless belt 616 as shown in Figure 3E.
In any case, the circulating part 6 performs the feeding operation of material at its lower side and the feeding back of material at its upper side.
Said raking part 7 rakes up the material 4 sent from said circulating part 6 and conveys it to the material outlet 33 1()~3~3~'76 and is provided with the turning member 71 on which the raking means is provided. This turning member 71 should continuously convey the material 4 fed out from the lower side of the circulating part 6 and therefore the amount of material to be conveyed is preferably less than the amount of material to be supplied. Therefore it is desirable to form the space S3 between the raking part 7 and the circulating part 6 and de~ign so that the material 4 ~i9 stored in this space S3. In this case, it is desirable to design so that the amount of material to be supplied to space S3 is always larger than the amount of material to be conveyed from space S3 by the turning member 71 by making the peripheral speed of the turn'ing member 71 of the raking part 7 slower than that of the turning member 61 o~ the circulating part 6.
Said turning member 71 is provided with needle type, plate type or edge type raking means 711 on its peripheral surface to rake up the material 4 fed into the space S3 by said raking means 711. The turning member 71 is generally smoothed on its outer peripheral surface as shown in Figure 2 and the needle type raking means 711 is provided on the smooth peripheral surface. The raking:means 711 can be made as a cutter edge type as shown in Figure 4A or a hook type as , . .
shown in Figure 4C, and a multi-shaft turning member such as a endless belt conveyor type as shown in Fiqure 4C as the turning member 71.
The outer periphery of said turning member 71 is prefèrably I smoothed for a material with strong entangling characteristic.
For example, even a friction surface such as a cotton clo~h on which raking claws are studded do.es..nQt ca.use a considerahLe tro~ble in practical use. In this case, it is advantageous in that the outer periphery can be replaced.
I Said depressing means 8 depresses the material 4 raked,up by said raking means 711 against the peripheral surface of the turning number 71.. For example, in Figure 2, the depressing means 8 comprises the roller 81 provided with , the depressing pieces 811 such as projecting needles.
In this embo~iment, the roller 81 is adapted to rotate in the same direction~counterclockwise direction shown in the Figure 2) as the turn~ng member 71. However, depression of the material staying on the turning member 71 to the peripheral surface can be done by making the peripheral speed:of the roller 81 slower than that of the turnLng member 71 and therefore the peripheral speed of the roller 81 can be slower than the turning member 71 even when the roller 81 is rotated in a reverse direction to the turning member 71.
If the peripheral speed of the roller 81 is extremely slower than the peripheral speed of the turning member 71 and, for example, the roller 81 is rotated at a high speed in the same direction as the turning member 71, almost all of the : I .
I
1()~5~676 material hooked up by the raking means 711 is rejected toward the circulating part 6 and, if the peripheral speed of the turning member 71 is excessively approximate to that of the roller 81, the material 4 is seized between the turning member 71 and the roller 81 to stop the both. The difference of the peripheral speed between the turning member 71 and the roller 81 should be previously selected. Since this difference of the peripheral speed depends on the amount of material 4 to be fed and the characteristics of the material, these factors should be taken into consideration.
A turning member is employed for this depressing means 8.
The roller 82 on the external surface of which unevenness 821 is formed as shown in Figuxë 5A and the roller 83 the external surface of which is made as the smoothed surface 831 as shown in Figure 5B can be used. Moreover, the endless belt 84 provided with projections 841 made of hard hair on the like as shown in Figure SC can be used and a plural number of rollers 81and 81' can be used as shown in Figure SD.
Said depressing means 8 is preferably provided with the cleaner 85 as shown in Figure 2 to remove the material 4 sticking on the depressing means 8 into the space S2 at the side of the circulating part 6.
Thus, the material remaining in the space S2 is moved to above the turning member 61 of the circulating part 6 by removing motion of the cleaner 85 and the feed back operation . .
~ ^
10~96'~6 of the cixculating part 6 is improved accordingly.
brush roller type turning member as shown in Figure~2 and a belt conveyor type turning member as shown in Figure 5C
axe generally used as the cleanex 85. Depending on the case, the nozzle 85' can be provided as shown by a broken line in Figure 2 to blow a compressed air to remove off the material.
Said discharging means 9 is arranged between the feed outlet 33 and the depressing means 8 to discharge the material 4 from the_raking means 711 of the raking part 7.
This discharging means 9 is adapted so that the tuxning member 91 provided with hard haix 911 studded.as:sho.~n:',.in:.Fig,uxe.,2 . .~
and is tuxned in the feed direction of material 4 as shown with a ~olid line arrow head or turned in the reverse direction to the feeding direction as shown with a broken line arrow head. In case that the turning membex 91 tuxns .tQ the solid line arrow head, the material 4 is broken or cut into a number of pieces when the periphexal speed of the turning member 91 of the discharging means is faster than that of the turning member 71 of the raking means, and the matexial 4 continuously flows as being combed when the peripheral speed of the turning member 91 of the discharging means is made more appxoxi~ate to that of the turning member 71 of the raking.means. When the turning member 91 i8 turned in the direction shown with a bxoken line, the material 4 .
. ~9~676 conveyed by the turning member 71 of the raking means is transferred onto the turning member 91 of the discharging I means and discharged as shown with a broken line.
Accordingly, in this case, it is preferable to feed out the material 4 by combination of the turning member 91 and the turning member 91' for feeding out as shown in Figure 6A.
As said discharging means 9, a belt conveyor type multi~shaft turning member as shown in Figure 6B can be used or the material 4 can be blown off from the raking means 711 by blowing â compressed air from the nozzle 93 as shown in Figure 6C. Moreover, in case that a blowing means is employed, the feed outlet 33 can be narrowed as shown in Figure 6D to such air from the suction port 94.
The transfer means 13 is arranged below said feed outlet 33 and the material 4 is fed out by this transfer means.
In case of a sprayer, a fan type blower or a root blower is used as the transfer means 13, and the belt conveyor and the screw conveyor are used for other applications and moreover only the take-up means i5 provided below the feed outlet 33, depending on the case. The apparatus of the present invention is as described above, and the construction as shown in Figure 2 is explained here. The material 4 poured from the supplying part 5 is f~d toward the bottom 32 of the chamber 3 by the stirring rods 521 of the feeding member 52 and forwarded to the raking part 7 by the circulating part 6 1~9.3676 while the amount of material being fed is limited by the space Sl. The raking part 7 rakes up the material 4 being sent continuously into the space S3 and se~ds it in the counterclockwise direction shown in Figure 2 and the material 4 entangled by the raking means 711 of the raking part 7 is depressed onto the raking means 711 by the depressing means 8. In this case, if the turning member of the depressing means is made as the needle type as shown in the embodiment and the needles are to be inserted into spaces between the needles of the raking means, the material is cut into pieces as soon as it is depressed against the raking means and it can be made in granular form by mixing cement in it before spray~ng. ~.:
Then, in this stage, the remaining material which is not entangled by the raking means 711 ~s rejected by the depressing means 8 and remains in the space S2.
In other words, since the depressing means 8 comprises turning member such as the roller, endless belt, etc., the available amount of material which the depressing means can depress is limited and the material exceeding the available amount is rejected. This available depressing amount of material corresponds to the amount of feed can be adjusted by increasing and decreasing the distance between the turning ,.~
member of the depress~ng means 8 and the turning member 71 of the raking part 7 or raising and lowering the turning 1~99676 .
~peed of the turning member.7.1, As described above, the material 4 which has passed the depressing means 8 is~removed from the raking means 7 by the discharging means 9, taken out from the feed outlet 33 and dicharged from the nozzle 12 by the blower.
Hereupon, this apparatus can use conventional materials as described in the foregoing and the materials can be mixed in materials with strong entangling characteristic. Only materials with strong entangling characteristic can be used for this apparatus and therefore it is preferable to provide or separately prepare a means for mixing additive materials such as cement. In case of the apparatus of the present invention, it is desirable to humidify the material between the supplying part to the feed outlet for the purpose of dust-proof operation and, in this case, therefore it is preferable to provide a spraying means which performs spraying of a small amount of water for the material by utilizing, for example, the water pump 22.
Moreover, the turning member 71 of said raking part 7 is preferably located at a position lower than the turning member - 61 of the circulating part 6 as shown in Figure 7 so that the material supplied from the bottom of the chamber i5 directly . pulled in by the turning member 71 of the raking part 7.
Such arrangement is advantageous in that the material is prevented from coming off from the raking means 711 by its 1~99~76 own weight or a force applied to the material in the direction of pulling back.
To obtain such effect, it is preferable to position t4e feed end 32' of the bottom 32 of the chamber above the horizontal c:enter H of the turning member of the raking part.
Depression effect of the roller 81 of said depressing means . can be :more improved by deviating the roller 81:to.the feeding side from the vertical center line V of the turning member 71 and turning it in the same direction as the turning member 71.
The apparatus of the invention, as described above, is adapted to rake up the material supplied by the raking part 7 and convey it while fully depressing the material among the raking means 711 of the raki~g part by the..depressing means 8.and accordingly even a material with strong entangling characteristic can be positively conveyed. when the cleaner 85 is particularly provided in the depressing means 8, the depressing mean~ 8 can be cleaned by the cleaner 85 and the material 4 remaining in the space S2 can be forcibly fed back to the circulating part 6, thus preventing entanglement of the remaining material with the depressing means 8 and, at the same time, favorably ensuring the feed back operation of the material of the circulating part 6.
Accordingly, the apparatus according to the present invention provides a remarkable effect as this type which will be . 1~)99676 increasingly demanded in the future.
Brief Description of Drawings Figure 1 is a side view of a sprayer showing an example of application of the apparatus according to the present invention, Figure 2 is a cross sectional side view showing an embodiment of the apparatus of the invention, Figures 3A to 3E are rough side views showing embodiments of of the turning member employed in the circulating part of the above apparatus, Figures 4A to 4C are rough side views showing embodiments of of the turning member employed i~n the raking part of the above apparatus, Flgures SA to 5D are rough side views showing embodiment-Q of the depressing means of the above apparatus, Figures 6A to 6D are rough side views showing embodiments of the discharging means of the above apparatus, and Figure 7 is a rough side view showing another embodiment of said raking part.
In the figures, 1 is the apparatus according to the present : invention, 2 is the carrier, 3 i5 the chamber, 32 is the bottom of the chamber, 33 is the feed outlet, 4 is the material supplied, 5 lS the supplying part, 51 is the hopper, 52 is the feeding member, 6 is the circulating part, 61 is the turning member, 7 i8 the raking part, 71 is the turning member, 711 i~ the raking means, 8 is the depressing means, 85 is the cleaner and 9 is the discharging means. ~
. ~
': ~
s~ ~
~.
_ ........ , . ~
.
.
1~39~676 adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning memher and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized so that the turning member of said depressing means is provided with needles on its outer periphery by which the material is depressed against the turning member of the raking part and the turning member of the raking part is provided with needles which are arranged as the raking mean~ to pass through among the needles on the depressing means side and so that the peripheral speed of the turning member of said depressing means is relatively slower than that of the turning member of said raking part.
., .S
., ,. ~
-2c-. .
r--~a9~676 of compressed air supplied from the compressed air supply hose 211 to add water to a spray material such as rock wool ~prayed from the spray hose 11.
The apparatus 1, as shown in Figure 2, is provided with the chamber 3, supplying part 5 for the material 4 disposed on this chamber 3, circulating part 6 provided following the material supplying part 5, raking part 7 and material ~.
depressing means 8 and material discharging part 9 which are arran~ed to oppose the raking part.
Said supplying part 5 is designed in accordance with a kind of material and can be a material supplying port, for example, the hopper 51. In the embodiment, the forwarding member 52 is provided. This forwarding member 52 continuGusly feeds the material to the circurating part 6 and is provided with an appropriate number of stirring rods 521 to prevent the material 4 supplied ~rom causing bridge phenomenon, and the stirring rods are rotated in the arrow head direction to discharge the material 4 along the inner surface 31 of the chamber 3.
A plural number of forwarding members.52:can.b.e ~roY.ided,.and a ~crew conveyor, belt conveyor or the turn~ng member as employed in the raking part 7 which i8 described later can be employed. In any ~ase, the forwardinq members should be arranged to feed the material 4 into a space below the circulating part 6.
:
, . .. ,. : : .
~oa~7~
Said circulating part 6 is provided with the turning member 61 opposing the wall 32 of the chamber 3 through the specified space Sl and adapted to feed the materiàl 4 to be supplied to the space Sl from the supplying part 5 toward the raking part 7 at a sid~ below the turning member 61 and feed back the material 4 xemaining in the space S2 fro~ the raking means 7 side toward the supplying part 5 at a side above the turning member. For example, as shown in Figure 2, the circulating part 6 is provided with a turning member 61 of which concaved surface 611 is formed in the përipheral direction.
This turning member can be made in another construc~ion as shown in Figure 3. That is,rthe turning member can be provided with engaging projections 612 made of wire or plates on its outer periphery as shown in Figure 3A, a basket type receiving pa~t 613 as shown in Figure 3B, uneven surface 614.
as shown in Figure 3C, or smoothed surface 615 a~ ~hown in Figure 3D or the turning member can ~e made as a multi-shaft turning member which has a endless belt 616 as shown in Figure 3E.
In any case, the circulating part 6 performs the feeding operation of material at its lower side and the feeding back of material at its upper side.
Said raking part 7 rakes up the material 4 sent from said circulating part 6 and conveys it to the material outlet 33 1()~3~3~'76 and is provided with the turning member 71 on which the raking means is provided. This turning member 71 should continuously convey the material 4 fed out from the lower side of the circulating part 6 and therefore the amount of material to be conveyed is preferably less than the amount of material to be supplied. Therefore it is desirable to form the space S3 between the raking part 7 and the circulating part 6 and de~ign so that the material 4 ~i9 stored in this space S3. In this case, it is desirable to design so that the amount of material to be supplied to space S3 is always larger than the amount of material to be conveyed from space S3 by the turning member 71 by making the peripheral speed of the turn'ing member 71 of the raking part 7 slower than that of the turning member 61 o~ the circulating part 6.
Said turning member 71 is provided with needle type, plate type or edge type raking means 711 on its peripheral surface to rake up the material 4 fed into the space S3 by said raking means 711. The turning member 71 is generally smoothed on its outer peripheral surface as shown in Figure 2 and the needle type raking means 711 is provided on the smooth peripheral surface. The raking:means 711 can be made as a cutter edge type as shown in Figure 4A or a hook type as , . .
shown in Figure 4C, and a multi-shaft turning member such as a endless belt conveyor type as shown in Fiqure 4C as the turning member 71.
The outer periphery of said turning member 71 is prefèrably I smoothed for a material with strong entangling characteristic.
For example, even a friction surface such as a cotton clo~h on which raking claws are studded do.es..nQt ca.use a considerahLe tro~ble in practical use. In this case, it is advantageous in that the outer periphery can be replaced.
I Said depressing means 8 depresses the material 4 raked,up by said raking means 711 against the peripheral surface of the turning number 71.. For example, in Figure 2, the depressing means 8 comprises the roller 81 provided with , the depressing pieces 811 such as projecting needles.
In this embo~iment, the roller 81 is adapted to rotate in the same direction~counterclockwise direction shown in the Figure 2) as the turn~ng member 71. However, depression of the material staying on the turning member 71 to the peripheral surface can be done by making the peripheral speed:of the roller 81 slower than that of the turnLng member 71 and therefore the peripheral speed of the roller 81 can be slower than the turning member 71 even when the roller 81 is rotated in a reverse direction to the turning member 71.
If the peripheral speed of the roller 81 is extremely slower than the peripheral speed of the turning member 71 and, for example, the roller 81 is rotated at a high speed in the same direction as the turning member 71, almost all of the : I .
I
1()~5~676 material hooked up by the raking means 711 is rejected toward the circulating part 6 and, if the peripheral speed of the turning member 71 is excessively approximate to that of the roller 81, the material 4 is seized between the turning member 71 and the roller 81 to stop the both. The difference of the peripheral speed between the turning member 71 and the roller 81 should be previously selected. Since this difference of the peripheral speed depends on the amount of material 4 to be fed and the characteristics of the material, these factors should be taken into consideration.
A turning member is employed for this depressing means 8.
The roller 82 on the external surface of which unevenness 821 is formed as shown in Figuxë 5A and the roller 83 the external surface of which is made as the smoothed surface 831 as shown in Figure 5B can be used. Moreover, the endless belt 84 provided with projections 841 made of hard hair on the like as shown in Figure SC can be used and a plural number of rollers 81and 81' can be used as shown in Figure SD.
Said depressing means 8 is preferably provided with the cleaner 85 as shown in Figure 2 to remove the material 4 sticking on the depressing means 8 into the space S2 at the side of the circulating part 6.
Thus, the material remaining in the space S2 is moved to above the turning member 61 of the circulating part 6 by removing motion of the cleaner 85 and the feed back operation . .
~ ^
10~96'~6 of the cixculating part 6 is improved accordingly.
brush roller type turning member as shown in Figure~2 and a belt conveyor type turning member as shown in Figure 5C
axe generally used as the cleanex 85. Depending on the case, the nozzle 85' can be provided as shown by a broken line in Figure 2 to blow a compressed air to remove off the material.
Said discharging means 9 is arranged between the feed outlet 33 and the depressing means 8 to discharge the material 4 from the_raking means 711 of the raking part 7.
This discharging means 9 is adapted so that the tuxning member 91 provided with hard haix 911 studded.as:sho.~n:',.in:.Fig,uxe.,2 . .~
and is tuxned in the feed direction of material 4 as shown with a ~olid line arrow head or turned in the reverse direction to the feeding direction as shown with a broken line arrow head. In case that the turning membex 91 tuxns .tQ the solid line arrow head, the material 4 is broken or cut into a number of pieces when the periphexal speed of the turning member 91 of the discharging means is faster than that of the turning member 71 of the raking means, and the matexial 4 continuously flows as being combed when the peripheral speed of the turning member 91 of the discharging means is made more appxoxi~ate to that of the turning member 71 of the raking.means. When the turning member 91 i8 turned in the direction shown with a bxoken line, the material 4 .
. ~9~676 conveyed by the turning member 71 of the raking means is transferred onto the turning member 91 of the discharging I means and discharged as shown with a broken line.
Accordingly, in this case, it is preferable to feed out the material 4 by combination of the turning member 91 and the turning member 91' for feeding out as shown in Figure 6A.
As said discharging means 9, a belt conveyor type multi~shaft turning member as shown in Figure 6B can be used or the material 4 can be blown off from the raking means 711 by blowing â compressed air from the nozzle 93 as shown in Figure 6C. Moreover, in case that a blowing means is employed, the feed outlet 33 can be narrowed as shown in Figure 6D to such air from the suction port 94.
The transfer means 13 is arranged below said feed outlet 33 and the material 4 is fed out by this transfer means.
In case of a sprayer, a fan type blower or a root blower is used as the transfer means 13, and the belt conveyor and the screw conveyor are used for other applications and moreover only the take-up means i5 provided below the feed outlet 33, depending on the case. The apparatus of the present invention is as described above, and the construction as shown in Figure 2 is explained here. The material 4 poured from the supplying part 5 is f~d toward the bottom 32 of the chamber 3 by the stirring rods 521 of the feeding member 52 and forwarded to the raking part 7 by the circulating part 6 1~9.3676 while the amount of material being fed is limited by the space Sl. The raking part 7 rakes up the material 4 being sent continuously into the space S3 and se~ds it in the counterclockwise direction shown in Figure 2 and the material 4 entangled by the raking means 711 of the raking part 7 is depressed onto the raking means 711 by the depressing means 8. In this case, if the turning member of the depressing means is made as the needle type as shown in the embodiment and the needles are to be inserted into spaces between the needles of the raking means, the material is cut into pieces as soon as it is depressed against the raking means and it can be made in granular form by mixing cement in it before spray~ng. ~.:
Then, in this stage, the remaining material which is not entangled by the raking means 711 ~s rejected by the depressing means 8 and remains in the space S2.
In other words, since the depressing means 8 comprises turning member such as the roller, endless belt, etc., the available amount of material which the depressing means can depress is limited and the material exceeding the available amount is rejected. This available depressing amount of material corresponds to the amount of feed can be adjusted by increasing and decreasing the distance between the turning ,.~
member of the depress~ng means 8 and the turning member 71 of the raking part 7 or raising and lowering the turning 1~99676 .
~peed of the turning member.7.1, As described above, the material 4 which has passed the depressing means 8 is~removed from the raking means 7 by the discharging means 9, taken out from the feed outlet 33 and dicharged from the nozzle 12 by the blower.
Hereupon, this apparatus can use conventional materials as described in the foregoing and the materials can be mixed in materials with strong entangling characteristic. Only materials with strong entangling characteristic can be used for this apparatus and therefore it is preferable to provide or separately prepare a means for mixing additive materials such as cement. In case of the apparatus of the present invention, it is desirable to humidify the material between the supplying part to the feed outlet for the purpose of dust-proof operation and, in this case, therefore it is preferable to provide a spraying means which performs spraying of a small amount of water for the material by utilizing, for example, the water pump 22.
Moreover, the turning member 71 of said raking part 7 is preferably located at a position lower than the turning member - 61 of the circulating part 6 as shown in Figure 7 so that the material supplied from the bottom of the chamber i5 directly . pulled in by the turning member 71 of the raking part 7.
Such arrangement is advantageous in that the material is prevented from coming off from the raking means 711 by its 1~99~76 own weight or a force applied to the material in the direction of pulling back.
To obtain such effect, it is preferable to position t4e feed end 32' of the bottom 32 of the chamber above the horizontal c:enter H of the turning member of the raking part.
Depression effect of the roller 81 of said depressing means . can be :more improved by deviating the roller 81:to.the feeding side from the vertical center line V of the turning member 71 and turning it in the same direction as the turning member 71.
The apparatus of the invention, as described above, is adapted to rake up the material supplied by the raking part 7 and convey it while fully depressing the material among the raking means 711 of the raki~g part by the..depressing means 8.and accordingly even a material with strong entangling characteristic can be positively conveyed. when the cleaner 85 is particularly provided in the depressing means 8, the depressing mean~ 8 can be cleaned by the cleaner 85 and the material 4 remaining in the space S2 can be forcibly fed back to the circulating part 6, thus preventing entanglement of the remaining material with the depressing means 8 and, at the same time, favorably ensuring the feed back operation of the material of the circulating part 6.
Accordingly, the apparatus according to the present invention provides a remarkable effect as this type which will be . 1~)99676 increasingly demanded in the future.
Brief Description of Drawings Figure 1 is a side view of a sprayer showing an example of application of the apparatus according to the present invention, Figure 2 is a cross sectional side view showing an embodiment of the apparatus of the invention, Figures 3A to 3E are rough side views showing embodiments of of the turning member employed in the circulating part of the above apparatus, Figures 4A to 4C are rough side views showing embodiments of of the turning member employed i~n the raking part of the above apparatus, Flgures SA to 5D are rough side views showing embodiment-Q of the depressing means of the above apparatus, Figures 6A to 6D are rough side views showing embodiments of the discharging means of the above apparatus, and Figure 7 is a rough side view showing another embodiment of said raking part.
In the figures, 1 is the apparatus according to the present : invention, 2 is the carrier, 3 i5 the chamber, 32 is the bottom of the chamber, 33 is the feed outlet, 4 is the material supplied, 5 lS the supplying part, 51 is the hopper, 52 is the feeding member, 6 is the circulating part, 61 is the turning member, 7 i8 the raking part, 71 is the turning member, 711 i~ the raking means, 8 is the depressing means, 85 is the cleaner and 9 is the discharging means. ~
. ~
': ~
s~ ~
~.
_ ........ , . ~
Claims (17)
1. A constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back, at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking means are provided and adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and a material outlet and discharge the material toward the material outlet.
2. In a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back, at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking means are provided and adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized to be adapted so that said depressing means is provided with a cleaner which cleans said turning member and said cleaner removes off the material staying on the turning member of the depressing means in the direction of the circulating part.
3. In a constant feeding apparatus which comprises a material supplying part, and the following circulating part and raking part, wherein said raking part is arranged to oppose a depressing means and a discharging means, said circulating means is provided with a turning member with a space between the wall of a chamber and said turning member and adapted to feed out, at a side below the turning member, a material from said material supplying part toward the raking part and feed back, at a side above the turning member, the material remaining in a space between the raking part and the circulating part from the raking part toward the material supplying part by means of movement of the turning member, said raking part is provided with a turning member on the periphery of which raking means are provided and adapted to convey the material sent from said circulating part by means of movement of said turning member while raking up the material by said raking means, said depressing means is provided with a turning member and adapted to depress the material against said raking means by the turning member to forcibly engage the material being fed with the raking means, and said discharging means is adapted to separate the material from the turning member of said raking part between said depressing means and material outlet and discharge the material toward the material outlet, said constant feeding apparatus is characterized so that the turning member of said depressing means is provided with needles on its outer periphery by which the material is depressed against the turning member of the raking part and the turning member of the raking part is provided with needles which are arranged as the raking means to pass through among the needles on the depressing means side and so that the peripheral speed of the turning member of said depressing means is relatively slower than that of the turning member of said raking part.
4. A constant feeding apparatus in accordance with Claim 3, wherein said depressing means is provided with a cleaner which cleans its turning member.
5. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein a direction of movement of the turning member of said depressing means is reverse to that of the turning member of the raking part.
6. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein a direction of movement of the turning member of said depressing means is the same as that of the turning member of the raking part.
7. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein the bottom of the chamber which feeds the materials supplied is adapted to supply the material to the turning member of the raking part at a side above the horizontal center line of the turning member of the raking part.
8. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein the turning member of said circulating part is a multi-shaft type turning member.
9. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein the turning member of raking part is a multi-shaft type turning member.
10. A constant feeding apparatus in accordance with Claim 1, 2 or 3, wherein the turning member of said depressing means is a multi-shaft type turning member.
11. A constant feeding apparatus in accordance with Claim 2 or 4, wherein the cleaner of said depressing means is adapted to spray a compressed air onto the turning member of the depress-ing means.
12. A constant feeding apparatus in accordance with Claim 1, wherein said discharging means comprises a turning member.
13. A constant feeding apparatus in accordance with Claim 2, wherein said discharging means comprises a turning member.
14. A constant feeding apparatus in accordance with Claim 3, wherein said discharging means comprises a turning member.
15. A constant feeding apparatus in accordance with Claim 12, 13 or 14 wherein the turning member of discharging means is a multi-shaft type turning member.
16. A constant feeding apparatus in accordance with Claim 12, 13 or 14, wherein the turning member of said discharging means turns in a reverse direction to the turning member of the raking part.
17. A constant feeding apparatus in accordance with Claim 1,, 2 or 3, wherein said discharging means comprises a nozzle from which a compressed air is sprayed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6476378A JPS54155237A (en) | 1978-05-29 | 1978-05-29 | Constant quantity feeder |
| JP64,763/1978 | 1978-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1099676A true CA1099676A (en) | 1981-04-21 |
Family
ID=13267543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA327,253A Expired CA1099676A (en) | 1978-05-29 | 1979-05-09 | Constant feeding apparatus |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS54155237A (en) |
| AU (1) | AU516954B2 (en) |
| BR (1) | BR7903340A (en) |
| CA (1) | CA1099676A (en) |
| DE (1) | DE2921116C3 (en) |
| FR (1) | FR2427282A1 (en) |
| GB (1) | GB2022469B (en) |
| IT (1) | IT1118650B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016194C2 (en) * | 1980-04-26 | 1984-07-05 | Thyssen AG vorm. August Thyssen-Hütte, 4100 Duisburg | Device for the dosed delivery of metallic chips |
| US4595128A (en) * | 1985-03-28 | 1986-06-17 | Christy Machine Company | Apparatus for dispensing and distributing moist, self-adhering and compactible materials |
| DE3844567A1 (en) * | 1988-06-23 | 1989-12-28 | Henning J Claassen | Apparatus for applying a powdery or flaky material to a substrate |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB488617A (en) * | 1937-01-08 | 1938-07-08 | Felix Frederic Ruau | Improvements in or relating to apparatus for feeding cut tobacco |
| US2604068A (en) * | 1946-10-02 | 1952-07-22 | J W Roberts Ltd | Apparatus for damping mineral fibers to be sprayed in air |
| GB854936A (en) * | 1956-08-21 | 1960-11-23 | Emi Ltd | Improvements in or relating to web driving means |
| GB928961A (en) * | 1961-03-02 | 1963-06-19 | J W Roberts Ltd | Improvements relating to apparatus for spraying asbestos and like fibre |
| HU162992B (en) * | 1965-03-03 | 1973-05-28 | ||
| FR1478366A (en) * | 1965-10-15 | 1967-04-28 | Bernard Rudloff | Process for pneumatic working and defibering of textiles in flocks and its implementation, more particularly, for the conventional continuous manufacture of felts or non-woven textile webs |
| JPS4830342B1 (en) * | 1966-11-26 | 1973-09-19 | ||
| JPS5111237U (en) * | 1974-07-12 | 1976-01-27 | ||
| NL7703117A (en) * | 1977-03-23 | 1978-09-26 | Hertel Bv | DEVICE FOR SPRAYING FIBER MATERIAL. |
-
1978
- 1978-05-29 JP JP6476378A patent/JPS54155237A/en active Pending
-
1979
- 1979-05-03 AU AU46714/79A patent/AU516954B2/en not_active Ceased
- 1979-05-09 CA CA327,253A patent/CA1099676A/en not_active Expired
- 1979-05-22 IT IT68087/79A patent/IT1118650B/en active
- 1979-05-24 GB GB7918104A patent/GB2022469B/en not_active Expired
- 1979-05-25 BR BR7903340A patent/BR7903340A/en unknown
- 1979-05-25 DE DE2921116A patent/DE2921116C3/en not_active Expired
- 1979-05-28 FR FR7913464A patent/FR2427282A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU4671479A (en) | 1979-12-06 |
| BR7903340A (en) | 1980-03-04 |
| DE2921116C3 (en) | 1982-03-04 |
| IT7968087A0 (en) | 1979-05-22 |
| IT1118650B (en) | 1986-03-03 |
| DE2921116A1 (en) | 1979-12-06 |
| GB2022469A (en) | 1979-12-19 |
| JPS54155237A (en) | 1979-12-07 |
| DE2921116B2 (en) | 1981-07-09 |
| GB2022469B (en) | 1982-09-22 |
| AU516954B2 (en) | 1981-07-02 |
| FR2427282B1 (en) | 1984-06-29 |
| FR2427282A1 (en) | 1979-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5213817A (en) | Apparatus for intermittently applying particulate powder material to a fibrous substrate | |
| JP3537825B2 (en) | Air laying forming station with adjustment device for producing nonwoven material | |
| EP1477593B1 (en) | Fibre blending and opening machine | |
| JPH08503141A (en) | Method and apparatus for depositing particles on a moving material web | |
| CA1099676A (en) | Constant feeding apparatus | |
| AU700869B1 (en) | Method for preventing material to be briquetted from sticking to a roll surface | |
| CA1148129A (en) | Constant feed apparatus | |
| RU2719824C2 (en) | Device for uniform distribution of sludge | |
| JPS6229093Y2 (en) | ||
| JP4051168B2 (en) | Powder spray equipment for food | |
| EP0549136A2 (en) | Method for grinding particulate material in a roller press and apparatus for carrying out the method | |
| US1990584A (en) | Coating machine | |
| JPH0541802Y2 (en) | ||
| JPH0474458B2 (en) | ||
| GB2121853A (en) | Applicator for applying a surface dressing | |
| CN221499912U (en) | Multi-outlet distributing device | |
| CN208941027U (en) | A kind of device for material resurgence, charging and flavoring | |
| US5700111A (en) | Apparatus for applying synthetic roving materials and method for controlling the build up of static electricity | |
| JPH0228298B2 (en) | KONBEYAGATANOCHANAMAHAKANRISOCHINIOKERUSEIYOSEKISAIHOHOOYOBISOCHI | |
| JP2630582B2 (en) | Spraying method of spraying base material in greening method | |
| JPH0432892Y2 (en) | ||
| JPS6239024B2 (en) | ||
| JPS583109B2 (en) | architectural spray machine | |
| JPS5837861B2 (en) | Fixed amount feeding method for spraying material | |
| JP2001078513A (en) | Seeding agrochemical application facility for raising seedling box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |