JPH058864A - Device for supplying loose products - Google Patents

Abstract

PURPOSE: To supply products received in a container continuously without a lump through a supply port. CONSTITUTION: The supplying apparatus essentially has a rotor structure (rotating part) 17 mounted on a shaft 7 of a screw conveyer 6, corresponding to a supply pot 2. The rotary part 17 distributes approximately rotating motion to products to be supplied. A plate 100 having a radial finger working as a scraping part is provided in front of the rotating part 17. Therefore, the apparatus is used to measure and supply a pigment in a form of powder, granules or micro-conglobations in a so-called dye storage in a textile factory.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates generally to apparatus for feeding loose products. It is also used, with special care, to meter the product in the form of powder, granules or microspheres, such as powder dyes for dyeing solutions made in so-called dye warehouses of textile factories. .

[0002]

The above powdery dyes are usually composed of pigments in which a soluble powder is suspended and are often oily, such as glycols, in order to avoid scattering into the atmosphere. Treated with substance.

For this reason and as a result of absorbing moisture from the atmosphere, the product is densified in a storage container and also a mass or a mass which hinders recovery for use, especially recovery such as metering. Shows a remarkable tendency to form aggregates similar to.

It is an object of the present invention to provide an improved feeding device which can achieve a completely satisfactory operation. This is especially the case when applying to a factory having a plurality of containers connected in a substantially chain-like manner for each loose product, such as a powdered pigment, so that it can be moved annularly along a substantially horizontal path. In such a factory, each container has a supply outlet with a screw conveyor at the bottom and at least one agitation unit directly above the screw conveyor.

In a practical example of the above factory, the screw
The exit end of the conveyor is formed as a punched plate with holes for discharging the supplied product. In effect, this shape is comparable to the outlet of a minced meat machine, the main purpose of which is to facilitate the removal of the densified product remaining at the bottom of the container, even after the stirring operation has been carried out. Is to

However, this solution is not considered technically entirely satisfactory. Because, at least for some powdery materials or under certain circumstances, the cohesive force of the mass must be such that the screw conveyor forces the material through the holes in the outlet plate of the feeder. Because it will not happen.

In particular, the pushing of material by the screw into the punched plate causes two basic problems.

The first problem is that the material passing through the holes is subject to an extruding effect which causes a small mass due to the thickness of the plate. As a result, the mass falling from the device into the underlying weighing structure is only the expected weight to be exceeded.

The second problem is that the material carried by the screw to the non-punching area (between one hole and another hole) is tightly packed between the plate surface and the screw, It is to receive the pressing force (densification force, etc.) of.

[0010]

According to the present invention, the above object is achieved by the provision of a feeder having the features described in the claims. Moreover, the above special problem can be avoided.

In any case, the following must be noted. That is, the device of the invention can be used in factories of the type mentioned above, with particular care, but also storage facilities and units of different types, for example dyes for plastic materials and storage of auxiliary products. -Used beneficially for supply facilities.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The feeding apparatus for loose products of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows an overall container for storing loose products, for example powders or similar products for dyeing (grains, microspheres, etc.) used in so-called dye warehouses of textile mills.

In this field of use, it is desirable to be able to selectively recover a certain amount of product from the container 1. In this example, for purposes of explanation, the container 1 is an essentially vertical cylindrical container with a feed port 2 around its lower portion. The product falls from the container 1 through this supply port 2 and is collected in a container, for example, a bucket (not shown) arranged at the top of the balance for accurately weighing the product.

The stirrer is designated in its entirety by the reference numeral 3 and essentially consists of a shaft 4 passing through a diameter near the bottom of the container 1 just above the opening 2. Stirrer 3
Has several cranks or similar off-center parts 5. This crank part 5 is mainly used as a result of the rotation of the shaft 4 in the lower part of the container 1 in order to prevent the formation of a dense mass of product and to destroy any formed mass. mix.

A screw conveyor 6 is provided below the stirrer 3, usually on the bottom of the groove or path of the container 1, and its shaft 7 is substantially parallel to the shaft 4 of the stirrer 3.

In particular, the shafts 4 and 7 are gears 8 and 9 attached to the corresponding motors 10 and 11 or a single motor.
Can be driven by. If the container 1 can be moved as a whole with respect to a fixed frame of the factory, the motor or motors 10, 11 are arranged in a fixed position at the supply station of the factory.
Then, the container 1 is the above-mentioned motor or the motor 10,1.
It is possible to have an engagement mechanism for bringing the gears 8, 9 into the operating position only when they are aligned.

The function of the screw conveyor 6 is essentially to push the material in the container 1 towards the supply outlet 2, which is usually covered by a movable cover 12. The cover in question consists of a cap that can cover the supply outlet 2 and associated members (described below), and for this purpose it is covered by two flanges 12a.
By the sliding of the two rods 13 supporting the, the container 1 is biased against the wall.

The rod 13 is a hole in the wall of the container 1.
(Not specifically shown in the figure), the drive means (also,
Slide under the action of (not shown).

An important feature solved by the present invention is that the structure and arrangement of the outlet 2 found at the end of the screw 6 essentially includes the following. A bush or sleeve 14, which surrounds the end of the screw 6 corresponding to the wall 15 of the container 1, an attachment 16 of the shaft 7 of the screw 6 (in contrast, the structure is shown in FIGS. 2 and 3). Rotor 17 which is attached), and a nozzle 18 which is attached to the wall 15 of the container 1 with a flange 19 by means of screws 20 or similar attachment means.

The nozzle 18 includes a skirt portion 21 surrounding the rotor 17. As a result, a cylindrical shape having a horizontal axis, one end opening toward the screw 6, the other end lower part is closed by the end wall 21a, and a semicircular opening for discharging the product above the end wall 21a. Chamber is formed. The wall 21a has a hole in which the accessory 16 of the shaft 7 is rotatably supported (a bush or a bearing may be interposed). The nozzle 18 also essentially has a skirt end 22 that is semi-conical. This skirt end 22 forms an extension of the cylindrical part 21 and is arranged corresponding to the part of the chamber containing the rotor which is not blocked by the end wall 21a.

Further, the rotor 17 and the wall 21 of the nozzle 18
A plate (denoted by reference numeral 100) is inserted between a and a while attached to the latter. As can be seen from FIG. 5, the plate 100 has a substantially semi-circular rigid lower portion 101 and an upper portion forming a finger structure. The lower part 101 is intended to face the wall 21a and is prevented from rotating by a pin (not shown) which meshes with the hole 102. Further, the upper portion includes, for example, four fingers 103 radially extending from the central hole 104, and the accessory 16 of the shaft 7 passes through the central hole 104.

As can be seen from FIGS. 1 and 4, the shape of the cap 12 is substantially complementary to the shape of the nozzle 18, and includes an upper portion having a substantially semi-conical truncated cone shape that covers the portion 22 of the nozzle 18. And a lower portion 25. Lower part 25
The function of is mainly to close the supply outlet 26 defined by the wall 21a and the frustoconical skirt 22 which is open at the bottom.

The rotor 17 (shown in FIGS. 2 and 3) is essentially constituted by the hub 27. The hub 27 is intended to be fastened to the appendage 16 of the shaft 7, for example by passing a pin through a hole 28 which extends through the diameter. A plurality of blades 29 (six blades are shown in this example) arranged equiangularly are mounted on the hub 27. The blades are generally flat or helically configured and are only about 15 ° to the axis of the hub and thus to about 15 ° to the axis of rotation of the rotor 17 in a direction opposite or impinging on the twist of the screw 6. It is inclined.

The motors 10 and 11 are driven during the operation of this device. As a result, the material already under the action of the stirrer 3 (and thus already delumped) falls into the operating area of the screw 6. The screw 6 passes through the bush 14 and the chamber in which the rotor 17 is operating,
Advance the material towards the feed outlet 2.

As mentioned above, the inclination of the blades of the rotor 17 is opposite to the direction of twist of the screw 6, so that the blades slow down the material and, as a result, densify (solidify) to eliminate gaps and spaces. Is not done).

The rotary motion of the rotor 17 removes material from the point where it cannot be discharged as a result of the pushing of the screw 6 (formation of a mass). At the same time, it brings about further mixing.

The plate 100 attached to the nozzle 18 acts as a skid.

The rotor 1 is fed by a screw 6.
The material rotated by 7 is actually the plate 1 which is fixed to the front ends of the blades of the rotating rotor 17.
00 is crushed between the ends of the fingers 103 and then continuously falls into the underlying weighing structure without lumps.

In the modified example shown in FIGS. 6 and 7, the material discharged from the supply outlet 2 (hole 26) is first dropped into the container (which may be on the balance) placed below, instead of being dropped directly into the container. ,
Like an oscillating supply duct, it collects in a sleeve 200 made of a resilient or at least flexible or bendable material that surrounds the supply outlet. For example, the sleeve 200 may be configured by a tubular elastic element. This elastic element comprises a sealing ring 201.
Is closely attached to the periphery of the skirt portion 21 of the nozzle 18 or simply held by its own elasticity or attachment means (not shown). According to a solution, which is particularly relevant to FIG. 7, the sleeve 200 has two mounting flanges (or ears) 202 which are connected to the wall 15 of the container 1 by means of elastic catches 203. The fasteners are generally "signer blocks".
of the type known as "sinerblocs." In this case, a sleeve 200 having a substantially rigidity may be used, since general flexibility or elasticity to the container 1 is ensured by the fastener 203. is there.

As shown in FIG. 6, the sleeve 200 is
Is slightly tapered away from the outlet 2 so as to form an end opening 204. Generally, in this example,
The cap 12 and its appendages have been removed and instead a frustoconical plug 205 (having an operating mechanism similar to that of the cap 12) is provided. The plug 205 selectively closes the opening 204 to isolate the material remaining in the sleeve 200. The upper accessory of the sleeve 200 (usually integral with the sleeve 200), designated by reference numeral 206, has an inertial mass 207 interposed between it and a known electrical, pneumatic or hydraulic vibrator 208. It is connected. This oscillator comprises a support structure 20 facing the supply outlet 204.
It is attached to 9.

The vibrating mechanisms 207, 208 are activated while the contents of the reservoir 1 are being supplied. The material expelled from the opening 2 as a result of the movement of the screw 6 reaches the inside of the vibrating sleeve 200 due to its elastic and flexible shadow. By varying the magnitude and frequency of the vibration, the material within the sleeve 200 can be slowly advanced in small increments. As a result, very accurate weighing can be performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a lower portion of a bulk product container provided in a supply device of the present invention.

FIG. 2 is a diagram showing an enlarged view of a II-II plane in FIG.

3 is a view showing a cross section taken along the line III-III in FIG.

FIG. 4 is a perspective view showing a part viewed from a direction of an arrow VI in FIG.

5 is a view showing a cross section taken along line VV in FIG.

FIG. 6 is a view substantially corresponding to the left part of FIG. 1, showing a possible modification of the present invention.

FIG. 7 is a view substantially corresponding to the view taken along the line VII-VII in FIG.

[Explanation of symbols]

1 container 2 supply outlet 3 Stirrers 6 screw conveyor 7 shaft 17 rotor 18 nozzles 100 plates

Claims (24)

[Claims] 1. A supply device for loose products, which is attached to a container (1) containing a product and comprises conveyor means (6) for advancing said product towards a supply outlet (2). A rotary part (17) corresponding to the outlet (2), which operates as a result of the operation of the conveyor means (6) and as a result imparts a substantially rotational movement to the product in order to release it. A supply device for loose products, which is characterized by including. 2. The bulk product supply apparatus according to claim 1, wherein the conveyor means (6) is driven by a motor drive shaft (7), and the rotating portion (17) is relative to the shaft (7). A supply device for loose products, characterized in that it is attached to each other. 3. The bulk product supply apparatus according to claim 1 or 2, wherein a substantially cylindrical chamber is defined around the rotating part (17), and the rotating part (17) is provided. Device for feeding loose products, characterized in that it comprises a skirt (18) having a wall (21) for receiving the product under action of the conveyor means (6). 4. A bulk product feeder according to claim 3, wherein the wall (21) has a horizontal axis and one end opens towards the conveyor means (6) and the other end Additional wall (21a) so that the lower part defines the upper hole (26) for product discharge
A supply device for loose products, characterized in that it forms a cylindrical chamber that is closed by. 5. The supply device for bulk products according to claim 4, wherein the plate member (100) inserted between the rotating part (17) and the hole (26) is the rotating part (17). A supply device for loose products, which is characterized by being substantially stationary with respect to. 6. The bulk product supply apparatus according to claim 5, wherein the plate member (100) has a substantially radial direction or the hole.
(26) A bulk product supply device having finger portions extending in a direction crossing (26). 7. The bulk product feeder according to claim 6, wherein the plate member (100) comprises the further wall (21a).
A supply device for loose products, characterized in that it comprises a substantially closed holding part (101) facing the. 8. The bulk product feeder according to claim 3 or 4, wherein the skirt (18) forms an extension of the chamber and opens downward (26). A supply device for loose products, characterized in that it comprises a nozzle-like structure (22). 9. The bulk product feeder according to claim 8, wherein the nozzle-shaped component (22) has a substantially truncated cone shape. 10. A bulk product feeder according to any one of the preceding claims, characterized in that it comprises a movable cap which can selectively cover the feed outlet (2). Supply device. 11. A bulk product feeder according to claim 10, wherein the cap projects from the container (1),
In addition, at least one motor drive rod (13) for moving the cap (12) from a position covering the supply outlet (2) to a supply position separated from the outlet (2) without covering the supply outlet (2) is interposed. A supply device for loose products characterized by being made. 12. Claims 8 and 10 and 11
2. The bulk product feeder according to any one of 1 to 3, wherein the cap (12) has the nozzle-shaped component (2
Device for feeding loose products, characterized in that it has a frustoconical part (24) which is substantially complementary to the shape of 2). 13. The supply device for loose products according to any one of the above claims, wherein the rotating part (17) has a blade inclined with respect to a rotation axis of the rotating part (17). Supply device for loose products. 14. The bulk product feeder according to claim 13, wherein said conveyor means comprises a screw (6), said blade (29) being opposite to the twist of said screw (6) or A supply device for loose products, which is inclined in a direction of collision. 15. The supply device for bulk products according to claim 13 or 14, wherein the blade (29).
Is a substantially flat or spiral blade. 16. The supply device for bulk products according to claim 13, wherein the blade (29) forms an angle of about 15 ° with respect to the rotation axis of the rotating portion (17). Feeder for loose products, characterized in that it is only inclined. 17. The bulk product feeder according to any one of the preceding claims, wherein the stirrer (3) for acting on the product under the container (1) is at a slightly higher position. A supply device for loose products, which is provided in the. 18. The supply apparatus for bulk products according to claim 1, wherein the supply outlet (2) has vibrating conveyor means (200, 2).
07, 208) are provided. 19. A bulk product feeder according to claim 18, wherein the vibrating conveyor means (200, 207, 208) comprises:
A supply device for loose products, characterized in that it is provided on the outside of the mouth by the supply of the container (1). 20. The bulk product feeder according to claim 18 or claim 19, wherein the vibrating conveyor means (200) is elastic by means of ancillary means (207, 208) for actively causing vibration. A supply device for loose products, characterized in that it comprises a duct (200) which can be vibrated dynamically. 21. The bulk product feeder according to claim 20, wherein the duct (200) has a tubular structure. 22. The bulk product feeder according to claim 20 or 21, wherein the duct (200) is connected to the feed outlet (2) via a sealing means (201). A supply device for loose products, which is characterized in that 23. The bulk product feeder according to any one of claims 20 to 22, wherein the duct (200) has a tapered opening (204).
A supply device for loose products, which comprises: 24. A bulk product feeder according to any one of claims 20 to 23, wherein the duct (200) has means (205) for selectively blocking its outlet portion (204). ) Is provided, the supply device for loose products.