JP6548946B2 - Powder feeder weighing feeder - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a powdery-particle weighing feeder apparatus, and more particularly to a powdery-grained powder feeder capable of accurately supplying a desired weight of granular material to a container in a short time.

  In general, the weighing operation for storing the target weight in a container for powder or granular material is carried out from a charging member for powder or granular material such as a hopper or conical, conveyance means such as a screw feeder, a table feeder or an electromagnetic feeder Using the above method to discharge and supply the powder and granules into a target container placed on the scale.

  However, in this weighing operation, the accuracy of measurement and the operation time are correlated, and it is necessary to increase the accuracy so that it takes time, that is, it is necessary to continuously supply little by little, and also the time Shortening and emphasizing efficiency makes it difficult to maintain accuracy by supplying a large amount at one time.

  In addition, the conventional measuring device has a limit in its ability, and the corresponding ability is also fluctuated by the difference in the characteristics of the powder and granules, and the powder and granules to be flushed are particularly difficult to measure. It had become.

  The applicant searched the prior art documents for the present invention, but could not find any documents that are particularly related to the present invention and which seem to be similar.

  The problem to be solved by the present invention is that, conventionally, when the powder of the target weight is stored in the target container, the efficiency of the work can be shortened while securing the accuracy of the weight. It is a point that the measuring feeder apparatus of the granular material did not exist.

In order to solve the above-mentioned problems, in the measuring and feeding apparatus for powder and granular material according to the present invention, a valve body operated by an electric cylinder is provided at the discharge port of the charging container for powder and granular material. the container permits opening adjustment stepless by information from an electronic balance which is placed between and Ri tare, between the turned container and the valve body described above is a short tube is interposed, said valve body, the lower end The discharge port is located inside the casing connected to the storage container, and the valve body is pivotally supported at one end, corresponds to the discharge port of the short pipe, and is horizontal to open and close the opening area of the short pipe. In the case of a flat-plate-like, powdery-particle weighing feeder which pivots in the direction, the above-mentioned valve body is a flat plate having a substantially bowl-like or semi-moon-like flat plate, whose narrow end is pivotally supported, It is characterized by forming one or more notches of the arcuate at the edge

Further, in the measuring and feeding apparatus for powder and granular material according to the present invention, the above-mentioned casing is characterized by being an eccentric hopper for supplying the powder and granular material to the storage container .

Furthermore, the measuring feeder for powder and granular material according to the present invention is characterized in that a sub cylinder is provided on a shaft for pivotally supporting the above-mentioned valve body, and the position of the valve body is variable in the vertical direction .

And the measuring feeder apparatus of the granular material concerning the present invention equips the discharge port of the charge container of granular material with the valve body operated with electric cylinder, and the storage container of granular material is placed on this valve body The information from the electronic balance makes it possible to adjust the degree of opening steplessly, and the above-mentioned valve body is an arc-shaped plate whose outer surface is bulged, and the base end of the fan-like support on both sides of the arc-shaped plate 38), and vertically pivot the valve body about its axis of rotation (38), and the above-mentioned arc-shaped plate has a quarter length of the circumference and has a fan-shaped base on both sides In the case of a powder and particle weighing feeder having an end angle of 90 degrees, the outer surface of the valve body described above is an arc-shaped outlet formed at the lower end of a connecting pipe (31a) provided substantially at the center of the upper casing (31). It is characterized in that it has a structure in sliding contact with the edge .

The powder feeder of the present invention is characterized in that the above-mentioned upper casing (31) is detachably connected to the lower casing (32), and the above-mentioned electric cylinder is mounted on the cylinder base plate. It is characterized in that it has a trunnion shape and can be tilted .

  The measuring feeder device of the granular material concerning the present invention is constituted as mentioned above. Therefore, it is possible to fully open the valve body at the time of large volume supply at the start of supply and gain the supply amount and time, and close the valve body as much as possible and perform small supply when approaching the target weight value. , It is possible to add. Since the valve body is driven by the electric cylinder, stepless adjustment can be performed, and the working time can be shortened while improving the accuracy of the supplied weight. In addition, since the decomposition is possible, the cleaning operation can be easily performed.

It is a whole perspective view of a first example. It is a principal part disassembled perspective view. It is a figure which shows a measurement board. It is principal part sectional drawing. It is a side sectional view. It is a top view. It is an AA line arrow directional view in FIG. It is a top view of a valve body. It is a longitudinal cross-sectional view. It is a whole perspective view of a 2nd example. It is a longitudinal cross-sectional view of the principal part. It is a top view. It is the sectional view on the AA line in FIG. It is the BB sectional drawing in FIG. It is a CC arrow line view in FIG. It is a partial cross section front view of a valve body. It is a top view. It is a side sectional view. It is the sectional view on the AA line in FIG.

  It realized as having shown as a drawing and having constituted as explained in the example.

  Next, a first embodiment of the present invention will be described with reference to FIGS. In the figure, 1 shows the measuring feeder of the granular material which implemented this invention. The feeder device 1 has a cone-like hopper 2 into which the target powder particles are charged at the top, and the hopper 2 has a poor dischargeability on its inner surface, for example, powder particles having high moisture and viscosity. However, a scraper 3 for scraping is provided to rotate along the generatrix. Moreover, this hopper 2 is equipped with a load cell, and measures the weight of the granular material in the hopper 2 one by one. Subtractive weighing is also possible by this load cell.

  Below the discharge port of the hopper 2 described above, there is connected a supply amount adjusting mechanism 4 for powder and granular material. The adjusting mechanism 4 includes an eccentric hopper 5 for supplying the granular material to a storage container for the granular material described later, and a lid plate 6 for detachably closing the upper surface opening of the eccentric hopper 5 via a packing 6a. A part of the cover plate 6 is provided with a flanged short pipe 7 communicated with the discharge port of the hopper 2 described above, and the short pipe 7 communicates with the inside of the eccentric hopper 5.

  Further, in the vicinity of the short pipe 7 on the upper surface of the cover plate 6 described above, there is formed a bearing portion 8 into which a valve shaft of a valve body to be described later is inserted. In the middle, an air cylinder 9 as a sub-cylinder is provided, and this air cylinder 9 can adjust the position of a valve stem described later finely in the vertical direction.

  In the figure, reference numeral 10 denotes an electric cylinder, and in the electric cylinder 10, SN poles are alternately arranged in a row, and a cylinder rod 10a having a stopper 10b at the rear end is inserted. Are connected in a straight line and slide in the cylinder 10. The electric cylinder 10 is fixed on a cylinder base 11, and the cylinder base 11 is fixed to a support plate 13 by a fixing pin 12. The support plate 13 has a notch edge at one corner fixed to the outer peripheral flange 8 b of the bearing 8 by a screw. 11a is a bearing for the fixing pin 12 and 11b is a low nut for restraining.

  The base end of the link plate (cylinder arm) 16 is provided pivotably by the pivot pin 15a of the knuckle joint 15 at the tip portion of the cylinder rod 10a via the floating joint 14 and a single knuckle joint 15 At the free end of the link plate 16 is formed a receiving cylinder 16a fitted to the upper end of a valve stem described later, and the lower surface of the receiving cylinder 16a is in contact with the upper surface of the bearing portion 8.

  On the other hand, reference numeral 17 in the drawing denotes a valve body, and the valve body 17 is a bowl-shaped flat plate, the small diameter portion of which is a base end, and the valve shaft 18 is attached. The valve stem 18 is a cylindrical body having three different diameters, and is inserted into the bearing portion 8 from below, and the receiving cylinder 16a of the link plate 16 is fitted to the upper end thereof, and is removed by the end plate 19 It is stopped. The valve body 17 corresponds to the discharge port of the short pipe 7 in the large diameter portion serving as the acting portion.

  At the base end to which the valve stem 18 described above is attached, there is provided a receiving piece 20 having a rectangular cylindrical hole, and the lower end of the valve stem 18 is fitted in the rectangular cylindrical hole of the receiving piece 20 An end plate 18b is provided via the lower plate 18b, and is positioned and fixed by a hexagonal bolt 18c from below to prevent slippage.

  Further, at least one or more arc-shaped notches 2b are formed in the side edge of one side of the valve body 17, and the reinforcing plate 22 is formed in the lower surface.

  On the other hand, in the figure, reference numeral 23 denotes an electronic scale, which is electrically connected to the above-described weighing board M, sends information on the weighing status to the weighing board M, and transmits the information to the electric cylinder 10 to make the electric cylinder 10 The cylinder rod 10a is actuated to pivot the connected valve body 17.

  Further, in the figure, reference numeral 24 denotes a plastic bag as a storage container for receiving and storing supplied granular material, and in the present embodiment, the plastic bag 24 is put in the auxiliary container 25 and its lid is The bag outlet drawn out from the central through hole of the body 25a is connected to the outlet of the eccentric hopper 5.

  The measuring and feeding device for powdery particulate material according to the first embodiment of the present invention is configured as described above. Here, the operation will be described. When the electric cylinder 10 operates according to the information from the weighing board M, the valve body 17 pivots about the valve shaft 18 so as to open and close the outlet of the short pipe 7 accordingly. . As shown in FIG. 7, this pivoting action can fully open the discharge port of the short pipe 7 at the beginning of the supply of the granular material as shown by an imaginary line. Under the present circumstances, although it exists in the eccentric hopper 5, the discharge port of the short pipe 7 can be avoided by the notch 21 although the movable range of the valve body 17 is restrained. In addition, when powder or granular material of a certain weight is stored in the plastic bag 24 and the amount is slightly increased, the discharge port of the short pipe 7 can be partially closed by the valve body 17, but this partial closing also is notched. The presence of 21 makes it possible to finely adjust the aperture area.

  The valve body 17 can also be brought into sliding contact with the discharge port of the short pipe 7, but due to the characteristics of the granular material, the valve cylinder 18 is lowered by the action of the air cylinder 9 when galling occurs. It is also possible to separate the valve body 17 from the outlet of the short pipe 7.

  Subsequently, a second embodiment of the present invention will be described with reference to FIGS. 10 to 19. The same reference numerals as in the first embodiment denote the same parts as in the first embodiment, and a detailed description will be omitted. In these drawings, reference numeral 30 denotes a powdery-particle weighing feeder according to the second embodiment. At the top, the feeder device 30 has a cone-shaped hopper 2 with a scraper 3 inside.

  The discharge port of the hopper 2 is connected to a connecting pipe 31a provided substantially at the center of the upper casing 31 which is substantially rectangular in cross section so that a valve body described later can operate. The discharge port edge of the connection pipe 31a is formed in an arc shape that can be in sliding contact with an arc plate of a valve body described later. The lower casing 32 having a substantially rectangular cross section is detachably connected to the lower portion of the upper casing 31 again, and a discharge port 32a for supplying powder particles is formed in a cone shape on the lower surface of the lower casing 32. The short pipe 33 which supplies a granular material to a storage container is connected with the discharge port 32a. Reference numeral 31 b denotes a handle for fastening the upper and lower casings 31 and 32 to separate them.

  A cylinder base 34 is attached to one side surface of the lower casing 32. The cylinder base 34 is provided with reinforcing plates 34a and 34b orthogonal to the upper surface and the lower surface. An electric cylinder 10 is mounted on the cylinder base 34 by a trunnion shaft 35a and a trunnion bearing fitting 35b, and this trunnion structure enables tilting. 35c shows a bearing.

  Further, 10c denotes a stopper of the cylinder rod 10a, and 10d denotes a double joint provided on the front surface of the stopper 10c, and the base end of the ring plate (cylinder arm) 36 is pivotally supported by a pin on the double joint 10d. doing. That is, when the electric cylinder 10 operates, the movement of the cylinder rod 10a is received by the stopper 10c, and the movement position of the double joint 10d also becomes a fixed distance to a predetermined position.

  Further, in the figure, reference numeral 37 denotes a valve body, and the valve body 37 is composed of an arc-shaped plate 37a whose outer surface side bulges and a pair of fan-shaped plates 37b and 37b provided on both sides of the arc-shaped plate 37a. The base angle of the fan-shaped plate 37b is 90 degrees, and the arc-shaped plate 37a has a quarter length of a circle whose radius is one edge of the fan-shaped plate 37b. .

  The rotary shaft 38 is inserted through the proximal ends of the fan-shaped plates 37 b and 37 b of the valve body 37. The portion of the rotary shaft 38 projecting outward from the valve body 37 has a large diameter, and the seal ring 38a, the O ring 38b and the lip seal 38c are interposed to form the casing at the boundary between the upper casing 31 and the lower casing 32. Is projected outward. The outwardly projecting portion is reduced in diameter and fitted in the support tubes 39, 39 via the bearings 38d, 38d, and the stopper plate 38e is fixed to the support tube 39 by screws 38f. It is done.

  The rotating shaft 38 projecting to the side where the electric cylinder 10 is provided is at a position where the tip thereof intersects the link plate 36, is engaged with the tip of the link plate 36 by the key groove 38g, and is coupled by the coupling member 40, The rotational force of the link arm 36 is transmitted to the rotating shaft 38. An end plate 40 a that holds the tip of the rotary shaft 38 is fixed to the connecting member 40 with a screw.

  Further, covers 42, 42 are fixed by screws to the side surfaces of the upper casing 31 on which the support tubes 39, 39 are provided.

  The second embodiment according to the present invention is configured as described above. Here, the operation of the second embodiment will be described. When the cylinder rod 10a of the electric cylinder 10 is pulled in, the valve body 37 makes the discharge port of the connecting pipe 31a fully open, and a large amount of powdery particles is produced. , And can be stored in the storage container as described in the first embodiment.

  When the electric cylinder 10 is operated and the cylinder rod 10a is advanced, the link plate 36 connected is operated to apply a rotational force to the rotary shaft 38 connected to the link plate 36, and the valve body 37 is rotated by the rotation. Rotate. The rotation operation is performed by sliding the arc-shaped plate 37a along the shape of the discharge port of the connection pipe 31a. A portion other than the portion closed by the arc-shaped plate 37a is in an open state, and a fine amount of powder particles are allowed to pass.

  Further, in the second embodiment, since the electric cylinder 10 is mounted in a trunnion structure, the electric cylinder 10, or more preferably, the cylinder rod 10a can be tilted to change the tip position of the cylinder rod 10a. Thus, the height of the position of the rotary shaft 38, that is, the valve body 37 can be adjusted, and a gap can be formed between the rotary shaft 38 and the discharge port of the connection pipe 31a.

  The powdery-powder weighing feeder according to the first and second embodiments is configured as described above. Although each of these devices is directed to powder, it is of course possible to cope with liquids if they are not viscous.

1, 30 Granular material weighing feeder device 2 Hopper 3 Scraper 4 Supply amount adjustment mechanism 5 Eccentric hopper 6 Cover plate 7, 33 Short pipe 8 Bearing 9 Air cylinder 10 Electric cylinder 10a Cylinder rod 11, 34 Cylinder base 12 Fixing pin 13 support plate 14 floating joint 15 knuckle joint 16, 36 link plate 17, 37 valve body 18 valve shaft 19 end plate 20 receiving piece 21 notched 22 reinforcing plate 23 electronic balance 24 plastic bag 25 auxiliary container 31 upper casing 31 a connecting pipe 32 lower casing 35a trunnion shaft 35b trunnion bearing bracket 37a arc plate 37b fan plate 38 rotary shaft 39 support tube 40 connecting member 42 cover M weighing board

Claims (6)

A valve body operated by an electric cylinder is provided at the discharge port of the powder particle input container, and this valve element can adjust the degree of opening in a stepless manner by the information from the electronic scale on which the powder container is placed. and tare is, between the turned container and the valve body described above is a short tube is interposed, the valve body the valve body, and to be positioned inside the casing outlet at the lower end is connected to the container, which is the Is a flat-plate-shaped powdery-particle weighing feeder, which is pivotally supported at one end, corresponds to the discharge port of the short pipe, and pivots horizontally so as to open and close the opening area thereof. The valve body is a flat plate having a substantially bowl-like or semi-moon-like flat plate, the narrow end of which is pivotally supported, and one or more arc-shaped notch portions are formed on the side edge thereof. Granular weighing feeder device. The apparatus according to claim 1, wherein the casing is an eccentric hopper for supplying the granular material to the storage container . The apparatus according to claim 1 or 2, wherein a sub-cylinder is provided on a shaft for pivotally supporting the valve body, and the valve body is positionally variable in the vertical direction . A valve body operated by an electric cylinder is provided at the discharge port of the powder particle input container, and this valve element can adjust the degree of opening in a stepless manner by the information from the electronic scale on which the powder container is placed. The above-mentioned valve body is an arc-shaped plate whose outer surface is bulging, the base end of the fan-like support on both sides of the arc-shaped plate is pivotally supported by the rotation shaft (38), and the rotation shaft (38) is centered In the case of powdery granular feeders, where the valve body is vertically pivoted, the aforementioned arc-shaped plate has a quarter length of the circumference, and the fan-shaped base end angle of both sides is 90 degrees. An outer surface of the valve body is structured to be in sliding contact with an arc-shaped discharge opening edge formed at a lower end of a connecting pipe (31a) provided substantially at the center of the upper casing (31). Body weighing feeder device. 5. A powder and particle weighing feeder according to claim 4, wherein the upper casing (31) is detachably connected to the lower casing (32) . The apparatus according to claim 4, wherein the electric cylinder is a trunnion type on the cylinder base plate and is tiltable .

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