JP5757084B2 - Powder raw material supply equipment - Google Patents

Description

  The present invention is provided in a cup-type vending machine or a beverage dispenser, and rotates a canister auger having spiral blades formed on its outer peripheral surface, and feeds the powder raw material stored in the raw material storage unit from the supply port. Relates to the device.

  For example, such a powder raw material supply apparatus shown in FIG. 8 is known. The powder raw material supply device 60 includes a storage container 61 that stores powder raw materials such as sugar and cream, a cover 63 that covers the upper end opening of the storage container 61 so as to be rotatable about a shaft 62, and a storage container 61 that is fixed by a fixing means (FIG. A carry-out portion 64 that is detachably attached to the carry-out portion 64 and a cylindrical supply port 65 that is formed so as to protrude forward is provided at the lower front end portion of the carry-out portion 64 (the lower left end in the figure). .

  In addition, a rotatable canister auger 70 for unloading the powder raw material from the supply port 65 is disposed at the bottom of the unloading section 64. The canister auger 70 has an auger shaft 71 extending horizontally in the front-rear direction (left-right direction in the figure), and a rotating shaft in which a thermoplastic resin is injection-molded on the outer peripheral surface of the auger shaft 71 and the spiral blade 72a is integrally molded. 72.

  Then, one end of the auger shaft 71 is disposed through a bearing 64a provided on the rear lower end side wall (the right lower end side wall in the drawing) of the carry-out portion 64, and the tip thereof has a direction opposite to the spiral direction of the spiral blade 72a. A male screw 71a with a thread is provided, and a rotary claw 73 is fixed to the male screw 71a. A drive pin 31 is attached to the drive shaft 30 a of the drive motor 30 that rotates the canister auger 70, and the rotation of the drive motor 30 is transmitted from the drive pin 31 to the canister auger 70 via the rotation claw 73.

  Further, above the canister auger 70, a first gear 66 provided in mesh with a spiral blade 72a formed on the rotary shaft 72 and a second gear 67 meshed with the first gear 66 are rotatable. The first gear 66 and the second gear 67 are rotated (in the direction of the arrow in the figure) in conjunction with the rotation of the canister auger 70, the powder raw material contains moisture, and is solidified in the powder raw material supply device 60. This prevents the stagnation of the powder raw material taken in between the 70 spiral blades 72a.

  In the cup type vending machine provided with the powder raw material supply device 60, when the beverage is pressed by the user and the beverage is selected, a powder raw material carry-out signal is output based on the beverage sales signal, and the drive motor 30 Is driven to rotate. When the drive motor 30 is driven to rotate, the canister auger 70 rotates a predetermined number of times from the drive pin 31 attached to the drive shaft 30a via the rotary claw 73 (rotates clockwise as viewed from the left side in the figure). When the canister auger 70 rotates a predetermined number of times, the powder raw material filled between the spiral blades 72a is sent to the left in the figure, and a predetermined amount of the powder raw material is carried out from the supply port 65. The powder raw material carried out in this way is stirred and mixed with hot water supplied from a hot water tank (not shown) and delivered to the user as a prepared cup beverage (for example, see Patent Document 1).

JP 2007-293616 A

  As described above, when the canister auger 70 rotates, the powder raw material in the carry-out portion 64 is taken in between the spiral blades 72a, and is sent out to the supply port 65 side by the feed action by the rotation of the spiral blade 72a. Is done. In order to make the canister auger 70 rotatable by absorbing the rotational shake of the drive shaft 30a and the rotating claw 73 rotated in this way, it is necessary to increase the gap 74 between the auger shaft 71 and the bearing 64a.

  However, if the gap 74 is large, the stored powder raw material spills from the gap 74 toward the drive motor 30 (see the arrow in the figure) and accumulates in the cup housing of the vending machine or beverage dispenser. It is necessary to clean it. Further, in order to prevent the powder raw material from spilling down, it is necessary to make the gap 74 small. For this purpose, the auger shaft 71 is made of metal, and the bearing 64a is made of a resin material having good dimensional accuracy and wear resistance. Therefore, the powder raw material supply apparatus becomes expensive.

  The present invention has been made in order to solve the above-described problems, and a powder raw material supply device in which the powder raw material stored in the raw material storage unit does not spill out from the gap between the shaft and the bearing is inexpensive. The purpose is to provide.

In order to achieve the above object, a powder raw material supply apparatus according to claim 1 of the present invention rotates a canister auger having spiral blades formed on its outer peripheral surface, and supplies the powder raw material stored in the raw material storage unit. In the powder raw material supply device that is carried out from the mouth,
Drive means for rotating the canister auger;
A transmission shaft for transmitting rotation of the driving means to the canister auger;
A bearing that penetrates the shaft of the canister auger disposed on the side wall of the raw material storage unit;
A push-back means for pushing back the powder raw material to the spiral blade side on the shaft outer peripheral surface of the canister auger in contact with the bearing ;
The transmission shaft is attached to the canister auger so that the shaft penetrates the bearing and is fixed so as to sandwich the bearing between the transmission shaft and the canister auger. .

  The powder raw material supply apparatus according to claim 2 of the present invention is characterized in that, in claim 1 described above, the push-back means is a spiral groove in the same spiral direction as the spiral blade.

According to the first aspect of the present invention, in the powder raw material supply apparatus for rotating the canister auger having spiral blades formed on the outer peripheral surface thereof and carrying out the powder raw material stored in the raw material storage part from the supply port, the canister auger A drive means for rotating; a transmission shaft for transmitting the rotation of the drive means to the canister auger; a bearing for passing through the shaft of the canister auger disposed on the side wall of the raw material storage ; and the canister auger in contact with the bearing Pushing back means for pushing back the powder raw material to the spiral blade side is provided on the outer peripheral surface of the shaft, and the transmission shaft is attached to the canister auger so that the shaft penetrates the bearing, and the transmission is performed. by being secured so as to sandwich the bearing in the axial and the canister auger, the auger shaft is made of metal, the dimensional accuracy in the bearing, the wear resistance of Without using had a resin material, also constructed a powder material supply device inexpensive material with a large gap between the shaft and the bearing, by rotating the canister auger, it means pushing back containing powder raw material in the gap Is pushed back to the spiral blade side, and the powder raw material can be prevented from spilling from the gap between the shaft and the bearing. As a result, it is possible to provide a powder raw material supply device that does not spill the powder raw material stored in the raw material storage unit from the gap between the shaft and the bearing at low cost.

  According to a second aspect of the present invention, the push-back means is a spiral groove in the same spiral direction as the spiral blade, so that the canister auger is rotated in the powder raw material unloading direction so that the gap between the shaft and the bearing is It is possible to prevent the powder raw material from spilling from the gap between the shaft and the bearing by pushing the powder raw material that has entered into the spiral groove and sending it back into the raw material storage unit. Furthermore, even if the spiral groove is provided on the shaft, the area where the shaft is in contact with the bearing is almost the same as when the spiral groove is not provided, so the surface pressure between the shaft and the bearing is not provided with the spiral groove. It is possible to keep the life of the shaft and the bearing long.

Front schematic diagram of a cup-type vending machine provided with a powder raw material supply apparatus according to an embodiment of the present invention The bird's-eye view of the appearance of the powder raw material supply apparatus according to the embodiment of the present invention Sectional side view of the powder raw material supply apparatus shown in FIG. Side view of canister auger assembly of powder raw material supply apparatus shown in FIG. External view of canister auger assembly shown in FIG. External view of canister auger and transmission shaft shown in FIG. Partially enlarged side view of the canister auger and transmission shaft shown in FIG. Cross-sectional side view of conventional powder raw material supply device

Hereinafter, a preferred embodiment of a powder raw material supply apparatus according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
FIG. 1 is a schematic front view of a cup-type vending machine provided with a powder raw material supply apparatus according to an embodiment of the present invention, with the front door opened.

  The cup-type vending machine 1 is a vending machine that prepares a beverage selected by a user by operating a beverage selection button and sells it in a cup. On the outer surface of the front door 3 attached to the device housing 2 so as to be openable and closable, a plurality of beverage sample display portions (not shown), a hot beverage selection button provided for each beverage sample display portion, an iced beverage selection button, and a coin input A mouth, a coin return lever, a deposit amount, a display unit for displaying the temperature of the hot water, a cooling water temperature, a change return port, and the like are provided, and a beverage outlet 4 that is opened and closed by a door plate 4a is provided in the center. Yes.

  Inside the device housing 2, a plurality of cups are stacked and accommodated in the vertical direction, and a cup supply device (not shown) that sequentially dispenses and supplies the cups from the lowermost cup, and a cup supplied from the cup supply device. Cup transport device 5 that holds and transports, auger type ice making machine 6 that manufactures and stores chip ice used when selling iced beverages, hot water tank 7 that stores hot water used for beverage preparation, roasting The coffee beans are extracted from the coffee beans that have been roasted into the ground coffee beans using hot water supplied from the hot water tank 7, and then inserted into sugar, cream, coffee liquid, etc. supplied to the cup. There are provided a beverage stirring device 9 for stirring and mixing by rotating the stirring blades, a powder raw material supply device 10 for storing powder raw materials such as sugar and cream, and supplying them at every sale.

  2 and 3 show a powder raw material supply apparatus 10 according to an embodiment of the present invention, and FIGS. 4 to 7 show a canister auger assembly 20 provided at the bottom of the raw material storage unit. The powder raw material supply device 10 is provided at a storage container 11 that stores powder raw materials such as sugar and cream, a carry-out unit 14 (a storage unit 11 and a carry-out unit 14 constitute a raw material storage unit), and a bottom part of the carry-out unit 14. , A rotatable canister auger assembly 20 for carrying out the powder raw material from the supply port 15, a drive motor (driving means) 30 for rotating the canister auger assembly 20, and the like.

  The storage container 11 is formed in a box shape with a thermoplastic resin, and is detachably attached to the upper portion of the carry-out portion 14 by a fixing means (not shown). The upper end opening of the storage container 11 is inclined forward and downward, and a shaft provided at the rear end. 12, the cover 13 is rotatably attached, and the powder raw material is charged with the cover 13 opened.

  A cylindrical supply port 15 is attached to the front lower end portion (left lower end in the figure) of the carry-out portion 14 so as to protrude forward. A canister auger having a spiral blade 21b of the same outer diameter integrally formed on the outer peripheral surface of a hollow taper shaft 21a tapering from the drive motor 30 side to the supply port 15 side at the bottom of the carry-out portion 14 communicating with the supply port 15 21 is disposed, and a shaft 21c (right end in the figure) at one end thereof is passed through a bearing 14a disposed on the lower end side wall of the unloading portion 14 (right lower end side wall in the figure).

  Further, on the outer peripheral surface of the shaft 21c of the canister auger 21 in contact with the bearing 14a, a spiral groove (push-back means) 21d in the same spiral direction as the spiral blade 21b is provided. Further, the canister auger 21 is provided with a tapered shaft hole 21e and a protrusion 21f. Then, by inserting the rod-like member 22a of the transmission shaft 22 provided with the tapered rod-like member 22a, the connecting claw 22b and the fitting portion 22c into the taper shaft hole 21e, the fitting portion 22c sandwiches the protrusion 21f, Since the transmission shaft 22 is attached to the canister auger 21, the transmission shaft 22 is fixed so as to sandwich the canister auger 21 and the bearing 14a so that the shaft 21c of the canister auger 21 penetrates the bearing 14a of the carry-out portion 14. A canister auger assembly 20 is provided.

  Further, the tapered shaft hole 21e and the tapered rod-like member 22a have a polygonal shape (in this embodiment, a hexagonal shape), and are connected to the connecting claw 22b connected to the driving pin 31 attached to the driving shaft 30a of the driving motor 30. The transmitted rotation is transmitted to the tapered shaft hole 21e fitted to the rod-like member 22a, and the canister auger 21 is rotated when the drive motor 30 is rotated. Then, the drive motor 30 rotates the canister auger 21 in the powder raw material carrying-out direction (see the rotation direction indicated by the arrow in FIG. 4, rotating clockwise as viewed from the left side of the drawing), so that the gap between the shaft 21 c and the bearing 14 a It is possible to prevent the powder raw material from spilling from the gap between the shaft 21c and the bearing 14a by feeding the powder raw material that has entered into the spiral groove 21d and sending it back into the carry-out portion 14.

  A first gear 16 is rotatably provided above the canister auger 21 so as to mesh with the spiral blade 21b, and a second gear 17 is meshed with the first gear 16 and rotatably provided on the upper front side thereof. . In the storage container 11 and the carry-out section 14, when the canister auger 21 rotates and the powder raw material carry-out operation is performed, the powder raw material moves in the downward direction, and the powder raw material is solidified by moisture. Although the phenomenon may occur, when the first gear 16 and the second gear 17 rotate in conjunction with the rotation of the canister auger 21, the powder raw material is agitated and stably moves downward. This prevents the raw material powder from taking in between the spiral blades 21b from stagnating and being unable to be carried out.

  As mentioned above, according to the powder raw material supply apparatus of this embodiment, the canister auger 21 in which the spiral blade 21b is formed on the outer peripheral surface is rotated, and the powder raw material stored in the storage container 11 and the carry-out unit 14 is supplied. In the powder raw material supply apparatus 10 that is unloaded from the port 15, a bearing 14a that penetrates the shaft 21c of the canister auger 21 is disposed on the side wall of the unloading portion 14, and the outer surface of the shaft 21c of the canister auger 21 that is in contact with the bearing 14a Even if the powder raw material supply apparatus 10 is configured with an inexpensive material by increasing the gap between the shaft 21c and the bearing 14a by providing push-back means (spiral groove 21d) for pushing back the raw material to the spiral blade 21b side, the canister auger By rotating 21, the powder raw material that has entered the gap is pushed back by the spiral groove 21d toward the spiral blade 21b, and the powder raw material is transferred to the shaft 21c and the bearing 14a. It is possible to prevent the spill from the gap. As a result, the powder raw material supply device 10 in which the powder raw material stored in the storage container 11 and the carry-out portion 14 does not spill out from the gap between the shaft 21c and the bearing 14a can be provided at low cost.

  Further, since the pushing-back means is the spiral groove 21d in the same spiral direction as the spiral blade 21b, the powder raw material that has entered the gap between the shaft 21c and the bearing 14a is rotated by rotating the canister auger 21 in the powder raw material carrying-out direction. It is possible to prevent the powder raw material from spilling from the gap between the shaft 21c and the bearing 14a by being pushed back into the carry-out portion 14 by being taken into the spiral groove 21d and sent. Furthermore, even if the spiral groove 21d is provided on the shaft 21c, the area where the shaft 21c is in contact with the bearing 14a is almost the same as when the spiral groove 21d is not provided, so the surface pressure between the shaft 21c and the bearing 14a is It can be maintained substantially the same as when the spiral groove 21d is not provided, and the life of the shaft 21c and the bearing 14a can be maintained long.

  Furthermore, by providing the drive motor 30 that rotates the canister auger 21 and the transmission shaft 22 that transmits the rotation of the drive motor 30 to the canister auger 21, the powder raw material supply apparatus 10 can be configured at low cost.

  In addition, although demonstrated using embodiment which provided the spiral groove 21d as the pushback means which pushes back a powder raw material to the spiral blade 21b side in the outer peripheral surface of the shaft 21c of the canister auger 21 which contact | connects the bearing 14a, it is inclined as a pushback means. Even if the groove is used, the same effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Cup type vending machine 2 Equipment housing | casing 10 Powder raw material supply apparatus 11 Storage container (raw material storage part)
14 Unloading section (raw material storage section)
14a Bearing 15 Supply port 20 Canister auger assembly 21 Canister auger 21a Hollow taper shaft 21b Spiral blade 21c Shaft 21d Spiral groove (push-back means)
21e Taper shaft hole 21f Protrusion 22 Transmission shaft 22a Bar member 22b Connecting claw 22c Fitting portion 30 Drive motor (drive means)

Claims (2)

In the powder raw material supply apparatus for rotating the canister auger formed with spiral blades on the outer peripheral surface and carrying out the powder raw material stored in the raw material storage part from the supply port,
Drive means for rotating the canister auger;
A transmission shaft for transmitting rotation of the driving means to the canister auger;
A bearing that penetrates the shaft of the canister auger disposed on the side wall of the raw material storage unit;
A push-back means for pushing back the powder raw material to the spiral blade side on the shaft outer peripheral surface of the canister auger in contact with the bearing ;
The transmission shaft is attached to the canister auger so that the shaft penetrates the bearing and is fixed so as to sandwich the bearing between the transmission shaft and the canister auger. Powder raw material supply device.   2. The powder raw material supply apparatus according to claim 1, wherein the push-back means is a spiral groove in the same spiral direction as the spiral blade.