JP6159447B1 - Screw conveyor device - Google Patents

Abstract

An object of the present invention is to provide a screw conveyor device that reduces labor in a cooking work place when powders are put into a pan and is less likely to become “dama”. A screw conveyor device (1) includes a hopper (4) into which powder is charged, and a cylinder that receives the powder charged into the hopper (4) from the base end side and conveys the powder to the tip side by a screw provided in the hollow inside. It has a body 2 and a sieving part 5 that is provided on the distal end side of the cylindrical body 2 and discharges from a discharge pipe after sieving powder. The tip of the screw penetrates into the sieve part 5 and the mesh surrounding the circumference of the penetrated tip is concentrically wrapped around the mesh, and the screw shaft penetrates through the inside of the mesh. The squeegee is disposed on the outer side, the scraper is disposed on the outer side, and the cap is pivoted in the same shape as the screw. [Selection] Figure 1

Description

 The present invention relates to a screw conveyor device that conveys powders put into a hopper and applies a sieve just before discharging.

As an apparatus for conveying a powder object to be conveyed, for example, a conveyor apparatus disclosed in Patent Document 1 is known. In this conveyor device, a plurality of cylindrical body constituent members are connected to form a long cylindrical body, a hopper is attached to the base end portion, and the object to be conveyed is rotated around the cylindrical axis in the cylindrical body. Is provided with a screw for conveying the. The cylinder is supported so that it can be tilted in the vertical direction with respect to the pedestal with a pedestal. When cleaning, the cylinder is laid down so that the cylinder and screw can be separated and cleaned smoothly. I have to. Further, Patent Document 2 discloses a technique for selecting and removing polymer powder conveyed by a screw conveyor device by using a vibrating sieve device and having a size larger than the size of the sieve mesh.

Noto 3169393 JP 2005-193947 A

When flour or other flour is melted in a liquid, it will leave behind if not mixed well. This bumpiness is so-called “dama”. It is known that in the case of a dish where the dama greatly influences the finish, if the powder is poured into the liquid while sieving, it will be difficult to do the dama.
In a food factory, when pouring powder into a pot filled with liquid, a sieve is put on the pot, and the bag containing the powder is lifted manually and sieved or dropped by the sieve. It is thrown in as it is.

According to Patent Document 1, since it is possible to convey and throw the powder upwards with respect to the pot filled with liquid, it contributes to the reduction of human power such as lifting a bag containing powder, There is a high possibility that the powders gather and become “dama” in the process of being conveyed while being pressed against the inner surface of the cylinder by the screw conveyor and then being pressed. If the technology of Patent Document 2 which is a powder sorting machine is used for putting powder into a pan, it is shaken by a sieve immediately after being conveyed by a screw conveyor, so it is difficult to “dama”. However, since the sieve device allows the powder to pass through the sieve stitches by gravity due to vibration, the amount of powder that can be processed is limited. Thus, there is a time difference between the powders put in the pan, and uneven cooking occurs when used for cooking.

The objective of this invention is providing the screw conveyor apparatus which reduces the effort in the cooking workshop at the time of throwing powder into a pan, and powder is hard to become "dama". Another object of the present invention is to provide a screw conveyor device that can be easily disassembled and facilitates a cleaning operation.

The screw conveyor device of the present invention includes a hopper into which powders are charged,
A cylindrical body that receives the powder charged in the hopper from the base end side and conveys it to the front end side by a screw provided in the hollow inside,
Provided on the tip side of the cylindrical body, and having a sieving part for discharging from a discharge pipe after sieving powders,
In the sieve portion, the tip of the screw has intruded, and a net that surrounds the intruding tip around the concentric circle,
Covering the net, the shaft end of the screw penetrates, a squeegee is arranged inside the net, a scraper is arranged outside the net, and the squeegee and scraper are formed around the net as a body with the screw And a cap to be pivoted.

Another feature of the present invention is that the sieve portion includes a lid portion through which the female screw portion passes, and a bearing portion that is detachably fixed to the female screw portion,
The bearing portion is provided with a male screw portion that is screwed into the female screw portion, a connection body that is pressed against the shaft end, and a bearing that is rotatable between the male screw portion and the connection body. It is that.

Still another feature of the present invention is a cart, a base that can be tilted with respect to the cart,
The hopper and the cylinder are attached, and a chamber having a sweeper that rotates below the hopper and sends powder to the cylinder is provided,
The chamber is installed on the base.

According to the present invention, the squeegee presses the powder on the inside of the net, and the scraper scrapes off the powder that has come out of the mesh of the net, so that “dama” is eliminated at high speed. Further, since the cap transmits the rotational force to both the squeegee and the scraper, and the rotation of the turning shaft of the screw is used, it is not necessary to place a special power source in the sieve portion. Moreover, the shaft end of the screw is only pressed against the connecting body, and the sieving part and the cylinder are easily separated and easily cleaned. Further, since the hopper and the cylindrical body are attached with the chamber interposed therebetween, it is possible to drop the powder vertically into the chamber from the hopper even if the inclination of the base is changed. The chamber is installed on a base that can be tilted sideways with respect to the carriage, and all the places through which the powder passes can be removed so that hygiene management is easy.

It is a side view of the screw conveyor apparatus by this implementation. It is sectional drawing of a sieve part. It is an exploded view of a sieve part. It is a figure which shows operation | movement of a sieve part. It is sectional drawing of a base, a chamber, and a hopper. It is an exploded view of a base, a chamber, and a hopper. It is a figure which shows the use condition of a screw conveyor apparatus. It is a figure which shows operation | movement of a base, a chamber, and a hopper.

In FIG. 1, a screw conveyor device 1 according to the present embodiment is provided on a cylindrical body 2, a hopper 4 provided on the base end side of the cylindrical body 2 and charged with powder, and provided on a distal end side of the cylindrical body 2. A sieve part 5, a chamber 9 that connects the hopper 4 and the cylinder 2, a base 3 on which the cylinder 2, the hopper 4 and the chamber 9 are mounted, a power unit 10, and a carriage 6 on which these are mounted. The cart 6 has a rectangular frame shape, and casters 61 with stoppers are attached to the four corners of the lower surface. In the figure, XX is a direction that crosses the screw conveyor device 1 from the front center to the back center. The couplers 14 and 15 are jigs that wrap the flanges from the outer peripheral side with a band having a U-shaped cross section, and detachably connect the flanges by tightening the bands with screws. The connector 14 connects the flanges 60 and 22 and the flanges 95 and 21, and the connector 15 connects the flanges 96 and 41.

FIG. 2 is a cross-sectional view of the sieving portion 5 cut in the XX direction, and FIG. 3 is an exploded view. A hollow 7 inside the cylinder 2 is provided with a turning shaft 71 in the length direction of the cylinder 2 and a screw 7 having a spiral blade continuous around the turning shaft 71. The distal end portion of the screw 7 protrudes from the distal end of the cylindrical body 2 and enters the inside of the sieve portion 5.

The sieve unit 5 includes a cylindrical casing 50 having a larger diameter than the cylindrical body 2, a discharge pipe 52 that discharges powder from the side surface of the cylindrical body 2, and a lid portion 57 of the casing 50. . A flange 60 provided around a connection opening 59 opened at the bottom of the housing 50 is detachably concentrically connected to the upper flange 22 of the cylindrical body 2 (see arrow A in FIG. 14 is not shown). A mesh 51 is fixed inside the cylinder 2 so as to surround the periphery of the tip of the screw 7 concentrically. The lower side of the net 51 communicates with the internal space of the cylindrical body 2 (see FIG. 3B), and the powder conveyed by the screw 7 reaches the inside of the net 51.

The lid part 57 closes the internal space of the housing 50 from above. The lid portion 57 is provided with a female screw portion 58 that penetrates the lid portion 57, and the bearing portion 8 is screwed thereto. The bearing portion 8 rotatably receives the connecting body 81 with a bearing 86, and the male screw portion 83 is screwed into the female screw portion 58 (see arrow B in FIG. 3A). The male screw part 83 is provided with a notch 84 so that the male screw part 83 can be rotated by a jig (not shown) from the outside of the female screw part 58. The connecting body 81 has a resin member 82 so as to come into stable contact by being pressed against the shaft end 73 of the turning shaft 71.

The cap 53 rotates over the mesh 51 and closes the upper opening of the mesh 51 with a circumferential flange 68. The shaft end 73 of the pivot shaft 71 penetrates the opening 56 provided in the center. However, a key portion 69 is provided to rotate coaxially with the turning shaft 71 (see arrow C in FIG. 3B). The key portion 69 is a groove extending in the axial direction of the turning shaft 71. A similar groove is also provided at the shaft end 73, and a key (not shown) is inserted in the axial direction of the turning shaft 71 so that the cap 53 and the turning shaft 71 are rotated coaxially. The cap 53 has two pairs on the diameter with the squeegee 54 and the scraper 55 paired. The net 51 is rotated between the squeegee 54 and the scraper 55.

With the cap 53 passing through the shaft end 73 of the turning shaft 71, the casing 50 is covered with the lid portion 57 (see arrow 2 in FIG. 3B). The notch 84 is rotated with a jig so that the resin member 82 of the connection body 81 is fixedly in contact with the shaft end 73, and the position of the connection body 81 is adjusted by the male screw portion 83 and the female screw portion 58. Decide. A nut 85 is screwed onto the male screw portion 83 penetrating above the lid portion 57, and the position of the connection body 81 is fixed by the nut 85.

FIG. 4 is a view of the cap 53 as viewed from below, and the position of the net 51 is indicated by a dashed line. In the drawing, the cap 53 rotates clockwise around the mesh 51 so that the squeegee 54 presses the powder inside the mesh 51 against the mesh 51, and the scraper 55 scrapes the powder coming out from the mesh of the mesh 51. Acts like dropping. Note that the positional relationship of the scraper 55 with respect to the squeegee 54 may be any relationship, but it is preferable to arrange the scraper 55 in consideration of the balance when rotating. The squeegee 54 and the scraper 55 may be close to each other without contacting the net 51.

FIG. 5 is an enlarged XX cross-sectional view of the periphery of the cylindrical body 2, the hopper 4, the chamber 9, and the base 3, and FIG. 6 is an exploded view. The base 3 is attached with a semicircular angle plate 31 perpendicularly to one end of a flat plate. The angle plate 31 is provided with a plurality of pin holes h <b> 1 to h <b> 7 near the arc at an appropriate angle at the same radial distance with respect to the center c of the rotation shaft 32. The rotating shaft 32 is pivotally supported by a bearing 62 provided on the carriage 6. The base 3 is provided with openings 33 and 34 through which the power shafts 11 and 12 pass. The power shaft 11 is a shaft that supplies power for rotating the swivel shaft 71, and is connected to a plug 74 provided at the lower end of the swivel shaft 71 so as to be detachable and rotate in the same body (FIG. 6). (See arrow e). The power shaft 12 is detachably connected to the sweeper 13 so as to rotate in the same shape (see arrow F in FIG. 6).

The chamber 9 has openings 93 and 94 through which the power shafts 11 and 12 penetrate on the lower surface side, and has connection openings 91 and 92 immediately above each facing each other. The chamber 9 is detachably installed on the base 3 so that the openings 33 and 34 of the base 3 are concentric with the openings 93 and 94, respectively. A flange 95 is provided around the connection opening 91, the lower flange 21 of the cylinder 2 is connected, a flange 96 is provided around the connection opening 92, and the flange 41 of the hopper 4 is connected to the connection opening 91. Is done. The sweeper 13 is located immediately below the connection opening 92 and is fixed to the power shaft 12 in the chamber 9. The sweeper 13 has a function of rotating by the rotation of the power shaft 12 and sending the powder in the hopper 4 to the cylindrical body 2 side by centrifugal force.

FIG. 7 shows the screw conveyor device 1 in the storage state (FIG. 7A), the use state (FIG. 7B), and the inspection / cleaning state (FIG. 7C). Since the rotating shaft 32 of the base 3 is supported by a bearing 62 provided on the carriage 6, the base 3 can be tilted with respect to the carriage 6 from standing (FIG. 7A) to lying down (FIG. 7C). . A fixed block 64 provided is attached to the carriage 6, and the pin hole 63 is formed at a position where a plurality of pin holes h 1-h 7 provided in the angle plate 31 pass when the base 3 is rotated by the bearing 62. Have. When the base 3 is inclined and the appropriate pin holes h1 to h7 communicate with the pin hole 63, the angle of the base 3 is fixed by inserting a pin into the pin hole 63 and fixing the communication state.

Next, the operation of the screw conveyor device 1 will be described. The screw conveyor device 1 is moved to the transfer site using the casters 61 of the carriage 6. The stopper of the caster 61 is operated to fix the screw conveyor device 1 in a state facing the pan. Using the angle plate 31 of the screw conveyor device 1, the discharge pipe 52 is positioned directly above the pan. When the base 3 is in a horizontal state, the line p connecting the center of the flange portion 41 serving as the outlet is inclined with respect to the center of the inlet of the hopper 4 (see FIG. 7A), and when the base 3 is inclined, the line p is as vertical as possible. (FIG. 7B). The reason why the relationship between the inlet of the hopper 4 and the flange 41 serving as the outlet can be set independently of the cylinder 2 is that the chamber 9 separates the two.

When the powder is put into the hopper 4, the powder in the hopper 4 falls into the chamber 9 through the central opening of the flange 41 just below the hopper 4 (FIG. 8B). In the chamber 9, the sweeper 13 rotates in the G direction, and the powders that have fallen into the hopper 4 are sent to the screw 7. The sweeper 13 is curved. By adopting this shape, it is possible to reduce the sweeper 13 from repelling the powder upward. The screw 7 lifts the powder and conveys it to the sieve unit 5. In the sieve unit 5, the squeegee 54 presses the powder inside the net 51 against the net 51, and the scraper 55 scrapes off the powder that has come out from the stitches of the net 51. The scraped powder is put into the pot through the discharge pipe 52.

When inspecting or cleaning the screw conveyor device 1, the cylinder 2, the sieve unit 5, the screw 7, and the chamber 9 are disassembled. At this time, as shown in FIG. 7C, the cylindrical body 2 can be laid sideways, so that the cylindrical body 2, the sieve portion 5, and the screw 7 can be easily disassembled. If the connecting tool 14 that connects the flange 60 of the sieve part 5 and the flange 22 of the cylindrical body 2 is removed, the sieve part 5 can be removed from the cylindrical body 2. The shaft end 73 of the pivot shaft 71 is merely pressed against the connection body 81 of the bearing portion 8, and the connection between the cap 53 and the shaft end 73 is inserted so that the key can be inserted into and removed from the key portion 69 in the direction of the pivot shaft 71. Therefore, the sieving part 5 can be separated from the cylindrical body 2 while the cap 53 is present. If the connecting tool 14 connecting the flange 95 of the chamber 9 and the flange 21 of the cylinder 2 is removed, the cylinder 2 can be removed from the chamber 9.

If the cover part 57 is removed, the sieve part 5 can take out the cap 53 from the inside. When the screw 7 is pulled out, the plug 74 is detached from the power shaft 11. Thus, the sieve part 5, the cap 53, the cylinder 2, and the screw 7 can be disassembled. Furthermore, the hopper 4 can be separated from the chamber 9 by raising the screw conveyor device 1 as shown in FIG. 7A and removing the connector 15 from the flange 41 of the hopper 4 and the flange 96 of the chamber 9. Then, the sweeper 13 can be removed. The chamber 9 is fastened to the base 3 with bolts (not shown), and can be removed from the base 3 by removing the bolts. Inspection or cleaning can be performed in a state where all the paths (chamber 9 and cylinder 2) through which the powder passes from the hopper 4 to the sieve part 5 are disassembled from the base 3. When assembling the sieving part 5, the procedure may be the reverse of the divided procedure. However, it is better to attach the casing 50 to the cylindrical body 2, then attach the cap 53, and finally attach the lid 57. It is easy to do.

  As described above, according to the present embodiment, the squeegee 54 presses the powder inside the net 51 against the net 51, and the scraper 55 scrapes off the powder that has come out from the stitches of the net 51. It is solved at high speed. Further, since the cap 53 transmits the rotational force to both the squeegee 54 and the scraper 55 in a state where the upper opening of the net 51 is closed, and the rotation of the turning shaft 71 of the screw 7 is used, There is no need to put a special power source in 5. On the other hand, the shaft end 73 of the screw 7 is only pressed against the connection body 81, and the sieving part 5 and the cylindrical body 2 can be easily separated. Further, since the position of the bearing portion 8 having the bearing 86 can be adjusted by the male screw portion 83, the pivot shaft 71 of the screw 7 can be supported at the center of the cylindrical body 2 without rattling. Locations that come into contact with the powder to be conveyed, such as the cylindrical body 2, the sieve portion 5, the chamber 9, and the hopper 4, can be removed from the base 3, so that there is an effect that cleaning is easy. In addition, the base 3 can be tilted sideways with respect to the carriage, and all the base 3 can be removed from the base 3 so that hygiene management is easy. Moreover, since the space between the cylindrical body 2 and the hopper 4 is separated by the chamber 9, the powder of the hopper 4 can fall into the chamber 9 as vertically as possible.

DESCRIPTION OF SYMBOLS 1 Screw conveyor apparatus 2 Cylindrical body 3 Base 4 Hopper 5 Sieve part 6 Bogie 7 Screw 8 Bearing part 9 Chamber 10 Power part 11, 12 Power shaft 13 Sweeper 14, 15 Connector 21, 22, 60, 95, 41, 96 Flange 31 Angle plate 50 Case 51 Net 52 Drain pipe 53 Cap 54 Squeegee 55 Scraper 61 Caster 62 Bearing

Claims (3)

A hopper into which the powders are charged;
A cylindrical body that receives the powder charged in the hopper from the base end side and conveys it to the front end side by a screw provided in the hollow inside,
Provided on the tip side of the cylindrical body, and having a sieving part for discharging from a discharge pipe after sieving powders,
In the sieve portion, the tip of the screw has intruded, and a net that surrounds the intruding tip around the concentric circle,
Covering the net, the shaft end of the screw penetrates, a squeegee is arranged inside the net, a scraper is arranged outside the net, and the squeegee and scraper are formed around the net as a body with the screw And a screw conveyor device characterized by having a cap to be rotated.
In the screw conveyor apparatus of Claim 1,
The sieve portion includes a lid portion through which the female screw portion passes, and a bearing portion that is detachably fixed to the female screw portion,
The bearing portion is provided with a male screw portion that is screwed into the female screw portion, a connection body that is pressed against the shaft end, and a bearing that is rotatable between the male screw portion and the connection body. A screw conveyor device characterized by that.
In the screw conveyor apparatus of Claim 2,
And a base that can be tilted with respect to the car,
The hopper and the cylinder are attached, and a chamber having a sweeper that rotates below the hopper and sends powder to the cylinder is provided,
A screw conveyor device, wherein the chamber is installed on the base.