JPS604630Y2 - Material distribution supply device in sieving machine - Google Patents

Description

[Detailed description of the invention] The present invention uses a sieve machine in which a plurality of sets of sieve screens are installed above and below in left and right sieve compartments formed in a shaking case, to separate powder and granular materials to be sieved. In order to evenly distribute and supply materials to the upper and lower sieve groups, a material distribution chamber with a mountain-shaped cross section is installed at one end of the earthen wall of the housing, and a rotating distribution valve and a distribution chamber are installed inside the distribution chamber. A partition wall was provided to separate the chambers, and material introduction tubes were connected to the openings at the lower ends of the left and right sides of the distribution chamber, each forming a passageway for supplying material to the upper and lower sieve screens in the left and right sieve compartments, respectively. A material dispensing and feeding device is provided.

The present invention will be explained below with reference to the drawings.

Reference numeral 1 denotes a rectangular casing, and this casing is made to vibrate by a mechanism to be described later. Inside the casing 1, a hollow chamber 2 is provided in the center extending from one end to the other, and distribution chambers are provided on the left and right sides of the hollow chamber 2. 3,
3, and in the left and right sieve compartments 3, 3, there are a plurality of sets (two sets in the drawing) of sieve mesh groups each consisting of a plurality of sieve screens 4 (three in the drawing) combined in a folded manner. A is installed in two stages, upper and lower.

Reference numeral 5 denotes a material distribution chamber protruding outward from the middle of one end of the earthen wall of the casing 1, which has a mountain-shaped cross section, and has a side wall in the shape of an inverted truncated conical cylinder within the top of the chamber. A bottomed distribution valve 6 with an open lower part and an open upper part is arranged, and a vertical drive shaft 8 with its upper end fixed to the center of the bottom of the distribution valve 6 is connected to a distribution chamber with a ridge-shaped cross section. A pulley 10 provided on a drive shaft 8 is driven by a transmission mechanism to be described later to rotate the distribution valve 6. A material supply cylinder 11 is arranged so as to face the upper opening of the valve 6.

On the outer periphery of the distribution valve 6, partition walls 12 are arranged radially in equal parts within the distribution chamber 5, with their inner ends close to the outer peripheral surface of the distribution valve 6, and the distribution chamber 5 is divided into a sieve screen group a for distributing materials. It is divided according to the number of.

(In the drawing, the sieve screen group a is installed in the left and right sieve compartments 3 and 3 in upper and lower two stages, respectively. Since there are four sieve screen groups, the distribution chamber 5
is divided into four equal parts as shown in Figure 5.

) 13 and 14 are distribution chambers 5 having a ridge-shaped cross section.
The material introduction tube 13 on the left side is connected to the lower end openings on the left and right sides and is installed vertically. a
Passages 15 and 16 are formed for supplying materials to the upper and lower sieve mesh groups a and 16, respectively, and the right introduction cylinder 14 supplies materials from the divisional chamber of the distribution chamber 5 to the upper sieve screen group a and the lower sieve screen group a of the right sieve branch chamber 3, respectively. Passages 15 and 16 are formed.

A bearing 1 is installed in the center of each of the earthen wall and lower wall of the casing 1.
7 and 18 and inserted into the hollow chamber 2.
Weights 20 and 21 are vertically symmetrically provided via arms on the upper and lower protruding parts of the drive main shaft 19, respectively, and the upper and lower protruding ends of the drive main shaft 19 support the Pulley 22 is installed.

Reference numeral 23 denotes an electric motor installed on the earthen wall of the housing 1 at a position opposite to the distribution chamber 5. A transmission belt is passed between the pulley 24 provided on the rotation shaft of the electric motor 23 and the main pulley 22, and the distribution valve 6 is Pulley 10 attached to drive shaft 8 and drive main shaft 1
A power transmission belt is connected to a pulley 25 attached to the upper end of 9.

Reference numeral 26 indicates hanging rods attached to the four corners of the housing 1, 27 indicates a discharge port for supplying powdered material onto the sieve screen 4 and discharging the material that is sieved by the sieve screen 4 and remains on the sieve screen 4; Reference numeral 28 indicates a lower screen receiving plate stretched below the sieve screen 4, 29 indicates an opening formed on one side thereof, and 30
indicates the outlet for the material passed through the sieve.

Next, the functions and effects of the present invention will be explained.

The casing 1 is suspended and supported in the work place by a hanging rod 26, and the electric motor 2 is
3, pulley 24, transmission belt, main pulley 2
2, the main drive shaft 19 is rotated, and the power is transmitted to the drive shaft 8 of the distribution chamber 5 by the pulley 25, the transmission belt, and the pulley 10.

The main drive shaft 19 is supported vertically at the center of the housing 1, and weights 20, 21 are attached to both upper and lower ends of the main drive shaft 19 via arms.
Since they are installed symmetrically, the suspended and supported housing 1 is swung in a circle with a constant radius in a horizontal plane, and due to the shaking action, the sieve screen group a installed almost horizontally inside the housing 1 is Sieve screen 4
The granular material supplied to the upper surface of the sieve is divided into upper and lower sieve screens.

When the granular material to be sieved is introduced from the material supply cylinder 11 into the upper opening of the distribution valve 6 in the material distribution chamber 5, the material is transferred into the shape of an inverted truncated conical cylinder by the rotation of the distribution valve 6. is discharged to the outer periphery of the distribution valve 6 through the open lower side wall of the distribution valve 6, and each chamber of the distribution chamber 5 is divided by partition walls 12 arranged radially in equal parts in the distribution chamber 5 on the outer periphery of the distribution valve 6. A material introducing tube 1 is connected to the left and right lower end openings of the distribution chamber 5, which is formed into a mountain-shaped cross section.
3.14, and the left and right material introduction cylinders 13.14
Since passages 15 and 16 are formed for supplying material from the compartments of the distribution chamber 5 to the upper sieve screen group a and the lower sieve screen group a of the left and right sieve compartments 3, 3, respectively, the material is distributed. From the chamber 5 divided by the partition wall 12, the material is distributed and supplied to each of the plurality of sieve screen groups a through the passages 15 and 16 of the left and right material introduction tubes 13 and 14.

The materials fed onto the sieve screen 4 of the sieve screen group a are respectively on the screen,
The material remaining on the screen is sieved and separated under the screen, and the material remaining on the screen sequentially flows down each stage of the screen and is discharged from the screen residue discharge port 27, and the material sieved under the screen is received by the receiving plate 28 and passed through the screen. It passes through the port 29 and is discharged from the under-screen sieve material discharge port 30.

In order to sieve a large amount of powder or granular material, several sets of sieve screens are housed in the housing, and the material is dividedly fed into each group for sieving. In order to do this, it is necessary to distribute and feed the material evenly to each sieve group under the same conditions, and this even distribution depends on the material feeding method, the shape of the passage, and the feeding amount. It is quite difficult to provide an equal distribution of

The present invention improves the sieving effect by uniformly and evenly distributing this distributed supply regardless of differences in the arrangement of the sieving machine, piping, and supply conditions.

In addition, the present invention attaches the distribution chamber 5 that houses the rotating distribution valve 6 directly to the housing 1 that houses a plurality of sets of sieve screens, and interlocks the distribution valves in the distribution chamber from the pivot axis of the shaking housing 1. Since the distribution valve is rotated in accordance with the operating status of the sieve machine, the material supply amount is effectively distributed evenly, and the material distribution chamber is located at one end of the earthen wall of the casing that houses the sieve screen. Since the materials installed and distributed in the parts are directly introduced into the housing, the structure is simple and the handling is easy.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a sieving machine equipped with the material distributing and supplying device of the present invention, Figure 2 is a vertical cross-sectional view of the same sieving machine, and Figure 3 is a cross-sectional view of the housing housing the sieve screen and the material distribution chamber. 4 is a perspective view showing the arrangement relationship between the rotating distribution valve and the partition wall of the material distribution chamber, and FIG. 5 is a horizontal sectional view of the material distribution chamber including the distribution valve. 1... Housing, 2... Hollow chamber, 3...
...Sieve branch, 4...Sieve screen, a...Sieve screen group, 5...Material distribution chamber, 6...Distribution valve, 7. ...Opening, 8...Drive shaft, 9.
...Bearing, 10...Pulley, 11...
...Material supply tube, 12...Partition wall, 13,1
4... Material introduction cylinder, 15.16... Material supply passage, 17.18... Bearing, 19...
... Drive spindle, 20, 21 ... Weight, 22.
...Main pulley, 23...Electric motor, 24
．． 25...Pulley, 26...Hanging rod.

Claims (1)

[Scope of utility model registration request] A hollow chamber 2 is provided in the center of the swinging rectangular housing 1 from one end to the other, and sieve compartments 3 are provided on the left and right sides of the hollow chamber 2.
. A material distribution chamber 5 in the shape of a dovetail is installed so as to protrude toward the outer mesh, and inside the top of the distribution chamber 5, a side wall is formed into an inverted truncated conical cylinder shape, and an open lower portion is provided in a part of the side wall. A bottomed distribution valve 6 with an open top is arranged, and the distribution valve 6 is rotated by a vertical drive shaft 8 fixed to the bottom thereof. A partition wall 1 is provided in the distribution chamber 5 on the outer periphery of the distribution valve 6.
2 are equally divided radially, and the inner end of the partition wall 12 is arranged close to the outer circumferential surface of the distribution valve 6 to divide the distribution chamber 5 according to the number of sieve screens for distributing and supplying the material, and the cross section is a mountain. At the lower end openings on the left and right sides of the distribution chamber 5, which has a shape, there are partition walls 12 of the distribution chamber 5.
The material introduction pipes 13 and 14 are connected to each other in the form of passages 15 and 16 for supplying material from each chamber divided into the left and right sieve compartments 3.3 to the upper sieve screen group a and the lower sieve group a, respectively. A material distributing and feeding device in a sieving machine, characterized in that it is equipped with a sieving machine.