JP2728236B2 - Shellfish sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting machine for sorting shellfish such as scallops by size.

[0002]

2. Description of the Related Art Conventionally, a sorter for sorting shellfish such as scallops by size is disclosed in Japanese Utility Model Publication No. 3-43989. In this prior art, a sieve body arranged in an inclined shape below a hopper into which a shell is put is made swingable by a prime mover having an eccentric shaft, and a pair of upper and lower rollers are arranged on a side surface of the sieve body with a longitudinal interval therebetween. Is provided, a guide plate sandwiched between a pair of upper and lower rollers is provided on a support plate portion of the machine frame corresponding to the rollers, and the upper roller is pivotally supported by a shaft passing through a vertical groove provided in the support plate, The upper roller is guided by the vertical groove by the amount of displacement in the vertical direction due to the rotation of the eccentric shaft, so that the screen body moves up and down while reciprocating.

[0003]

In such prior art, any portion of the screen body is swung with the same amount of reciprocating movement and the same amount of up and down movement. In other words, the same sorting force (shell movement urging force due to reciprocation + shell movement urging force due to vertical movement) is generated at any position with respect to the shellfish selected by the sluice body.
By the way, the screen body is set with a predetermined inclination angle range, and swings in that state. This inclination angle is set to a predetermined angle at which the shellfish to be sorted can be effectively sorted. However, there are various types of shells, such as those that are easy to slide and roll, those that are easily damaged when given an excessive impact, and those that have a large adhesive force (frictional resistance) to the screen, with the same amount of reciprocating motion in any part. In the prior art in which the sieve body is swung with the amount of vertical movement, there is still a problem in performing efficient and accurate sorting in consideration of frictional resistance against the sieve and prevention of damage.

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional circumstances, and has as its object a vertical position between a lower end side of a sieve corresponding to an outlet portion with respect to an upper end portion of a sieve which is an inlet portion from a hopper. The object is to make the amount of movement (movement height) variable so that the sliding and falling force (including rolling) on the sieve can be set according to various properties of the shellfish.

[0005]

According to a first aspect of the present invention, there is provided a technical means for arranging a sieve under a hopper for dropping a shell and tilting the sieve so as to swing. Then, in a sorting machine that sorts shellfish while shaking the sieve,
The gist is that the upper end side of the sieve is supported by swinging means for reciprocating and moving up and down by rotation of an eccentric shaft connected to a driving source, and the lower end side of the sieve is guided by guide means capable of adjusting the inclination angle. Further, claim 2 is a roll provided on the sieve by the guide means according to claim 1, and a roll guide surface capable of adjusting the inclination angle provided on a machine frame for guiding the roll along with the swing by the swing means. The gist is that it is provided. And Claim 3
3. The roll guide surface according to claim 2, wherein the roll guide surface is formed by a V surface, and the opening angle of the V surface is formed so as to be adjustable. The gist is that it is located at the lowermost end of. Further, the gist of the present invention is that the sieve according to the third aspect and the machine casing are connected by a spring for preventing tension of the sieve, the tension of which can be adjusted.

[0006]

According to the above technical means, the following effects are obtained. (Claim 1) The lower end of the sieve is guided by guide means capable of adjusting the inclination angle. Therefore, it is possible to vary the amount of vertical movement on the lower end side with respect to the upper end of the sieve, thereby making it possible to vary the sliding force. The angle of inclination of the guide means is adjusted according to various conditions such as a shell that easily rolls, a shell that is easily damaged by applying a large impact, and a shell that has a large adhesive force (frictional force) with the sieve. This makes it possible to carry out an optimum sorting suitable for the properties of the shellfish. (Claim 2) A simple structure comprising a roll provided with a guide means on a sieve, and a roll guide surface provided on a machine frame for guiding the roll along with the swing by the swing means and having an adjustable inclination angle. I do. (Claim 3) Since the roll guide surface is formed by a V surface whose opening angle can be adjusted, a more varied sliding and falling force of the shell can be obtained depending on the opening angle of the V surface. (Claim 4) The spring prevents the lower end of the sieve on which the roll is guided on the roll guide surface.

[0007]

As described above, the present invention has the following advantages. (Claim 1) Since this is a shell sorter having a structure in which the lower end of the sieve is guided by guide means capable of adjusting the inclination angle, the amount of reciprocation is the same between the upper end of the sieve and the lower end of the sieve. , The vertical momentum, that is, the sliding and falling force (including the rolling and falling force) applied to the shellfish can be adjusted. The inclination angle of the guide means can be adjusted easily by slipping and rolling, or easily damaged by applying an excessively large impact. Conversely, the adhesive force with the sieve (friction resistance).
Is set in consideration of the inclination angle at the time of setting the sieve and the amount of vertical movement on the upper end side of the sieve. Therefore, it is possible to sort properly without damaging the shellfish to be sorted, and to properly and efficiently sort the shellfish that easily slides and the shell with large frictional resistance. Can be changed to machine. (Claim 2) In addition, the guide means is not performed by rotation of an eccentric shaft connected to a drive source, but is constituted by a roll provided on a sieve and a roll guide surface provided on a machine frame and having an adjustable inclination angle. Therefore, the structure is simple and the equipment cost can be reduced. (Claim 3) In addition, since the roll guide surface is formed by a V-plane whose opening angle can be adjusted, the inclination angle of both constituent surfaces is adjusted from a continuous one in a planar shape to an acute angle or an obtuse angle. The range of adjustment of the sliding and dropping force (including the rolling and falling force) is larger than that of a simple flat roll guide surface, and the upper and lower sides of the lower end of the sieve from the upper dead center to the lower dead center on the upper end of the sieve The amount of movement and the amount of vertical movement at the bottom of the sieve from bottom dead center to top dead center can also be changed freely, and it is possible to obtain various types of sliding and falling forces that match the properties of the shellfish, and sorting It can be set freely to the optimum sliding force for the target shellfish. (4) Since the sieve and the machine frame are connected by a spring for preventing the sieve from dancing, the tension of which can be adjusted, the lower end of the sieve is prevented from floating and the drive source and the eccentric shaft connected to the drive source. This makes it possible to set the tension to an optimum level that does not easily cause resistance to the mounting portion, and it is possible to perform permanent and stable sorting.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 5 show the shellfish sorter of the first embodiment, and FIG.
Denotes a shell sorter of the second embodiment, and A denotes the sorter.

As shown in the figure, the sorting machine A has a machine frame a supporting four corners so that the height of the adjusting legs a1 can be adjusted, and a sieve 1
The sieve 1 set in an inclined manner is swingable by a swinging means 2 provided over an upper end of the sieve and a guide means 3 for supporting (placing) the lower end of the sieve 1. The oscillating means 2 is provided with a drive source 12
A transmission shaft 22 is supported and supported by a bearing portion 32 above the drive source 12, and a belt serving as transmission means 52 is mounted on a V pulley 42 provided on the motor shaft 12a and the transmission shaft 22. Eccentric shafts 62 are provided at both ends of the transmission shaft 22 and the eccentric shafts 62
A support arm 21 hanging from the lower plate 11 of the sieve 1 is attached to the
With the rotation of 12, the upper end of the sieve 1 moves up and down while reciprocating, and the lower end of the sieve 1 is guided by the guide means 3.

As shown in the figure, the sieve 1 is inclined downward from the upper end side immediately below the inlet of the hopper b toward the direction supported by the guide means 3 and gradually decreases. The two shell receiving plates 41, 41 with different sieve holes 41a are placed horizontally at intervals so that the shells to be sorted can be sorted into large, medium and small in the space surrounded by From the exits of the sorting room 51, the middle sorting room 61, and the small sorting room 71, shells of different sizes, large, medium, and small, are dropped.

The guide means 3 includes a roll 13 rotatably supported at both ends of a lower plate 11 at a lower end side of the sieve 1 as shown in FIG. Roll guide surface 23 with adjustable inclination angle to guide along
It consists of

The roll guide surface 23 is an L-shaped strip as viewed from the side, and serves as a surface on which the roll 13 is placed, and a long bolt which passes through the connecting surface 23c between the wide surface 23a and the narrow surface 23b. 23d is inserted through a pair of left and right support plates 23e, 23e projecting from the front side of the lower frame portion a3 of the machine casing a, and curved guide holes 23f, 23f are opened in the insertion portions.
By fixing a nut 23h to a screw shaft portion 23d 'protruding from the f and 23f, the inclination angle of the wide surface 23a can be set as desired, and the machine frame a slightly behind the support plates 23e and 23e. The lower end of the wide surface 23a is fixed to the shaft 23g with a lever rotatably supported by a pair of left and right bearings provided in the lower frame portion a3 by welding or other appropriate means. Loosen and operate the lever 23g 'to move the long bolt 23d up and down along the curved guide holes 23f, 23f around the shaft 23g, and then fasten the nut 23h again to set the desired angle of inclination on the roll 13 mounting surface. A certain wide surface 23a is set. Of course, the curved guide hole 23
f and 23f are formed with a radius centered on the shaft 23g.

Reference numeral 4 denotes a spring for preventing sieve dancing connected between the sieve 1 and the machine casing a. One end of the spring 4 is hooked into a hook hole 24 of an arm 14 protruding from the lower end of the sieve 1 as shown in the figure. A fixing nut that is latched and the other end is fixed to a lower frame part a3 of the machine frame a.
It is hung on the upper end of an adjustment bolt 44 which is screwed forward and backward with 34, 34, so that the tension of the spring can be changed by the advance and retreat of the adjustment bolt 44.

Next, the operation of the shell sorter according to the first embodiment will be described. 3 and 4 show the case where the inclination of the roll guide surface 23, that is, the wide surface 23a is gentle, and FIG. 5 shows the case where the inclination of the roll guide surface 23 is steep. First, the drive source 12 is driven to cause the sieve 1 to perform a reciprocating motion and an up-and-down motion. Then, the shellfish to be sorted is dropped from the hopper b. The shellfish slides inside the sieve 1 by the reciprocating movement and the vertical movement of the sieve 1, and the large shellfish slides or rolls as it is. Medium-sized shellfish is the upper shell receiving plate
41, the small shell falls from the sieve hole 41a of the lower shell receiving plate 41 to the small sorting chamber 71, and slides and rolls to the downstream like the large shell. It is guided and received separately by a basket provided under the exit. In FIG. 3, since the inclination of the roll guide surface 23 is gentle, the amount of vertical movement at the lower end of the sieve 1 is smaller than that at the upper end of the sieve 1 where the eccentricity of the eccentric shaft 62 is directly reflected. In detail, when the position of the roll 13 at the top dead center and the bottom dead center of the eccentric shaft 62 is X, the position of the roll at the forward point of the eccentric shaft 62 is Y, and the roll at the retreat point of the eccentric shaft 62. Is Z. A description will be given based on an explanatory diagram of the eccentric amount of the eccentric shaft 62 and the moving amount and direction of the roll 13 shown in FIG.
At the top dead center C1, the position of the roll 13 is X, also at the bottom dead center C3, the position of the roll 13 is X, at the advance point C2, the position of the roll 13 is Y, and at the retreat point C4, the position of the roll 13 is The position is Z.
Roll 13 moves from X to Y when moving from top dead center C1 to advance point C2.
Roll 13 when moving from the advance point C2 to the bottom dead center C3
Falls from Y to X, the roll 13 descends from X to Z when it moves from the bottom dead center C3 to the retreat point C4, and rises from Z to X when it moves from the retreat point C4 to the top dead center C1. This is the case where the eccentric shaft 62 is clockwise. Although not shown when the eccentric shaft 62 is counterclockwise, the roll 13 descends from X to Z when moving from the top dead center C1 to the retreat point C4, and from the retreat point C4 to the bottom dead center C
The roll 13 rises from Z to X when it reaches 3 and rolls 13 rises from X to Y when it moves from the bottom dead center C3 to the advance point C2, and rolls Y when it reaches the top dead center C1 from the advance point C2. From X to X. That is, the lower end of the sieve 1 is not eccentric with the rotation of the eccentric shaft 62, but is oscillated with a subtle change in the inclination angle having a different cycle from the upper end of the sieve 1. Move. Therefore, it is suitable for selecting shellfish that easily rolls or shellfish that is easily damaged due to the fact that the tilt angle of the lower end side of the sieve 1 during one rotation of the eccentric shaft 62 is changed while the amount of vertical movement is small. It can apply a varied sliding and falling force (including rolling). In FIG. 5, the inclination of the roll guide surface 23 shown in FIG. 3 is steeply inclined. A large inclination angle variation in which the period is different from that of the upper end of the sieve 1 while the amount of eccentricity of the eccentric shaft 62 is the same as the vertical movement of the upper end side of the sieve 1 where the eccentric amount is directly converted or depending on the inclination angle, but is larger than that. With this, the lower end side of the sieve 1 can be swung up and down. Therefore, the friction resistance against the shell receiving plates 41, 41 is large, and it is possible to apply a sliding and falling force (including rolling) with an uneven variation to the shell which is strong in impact.

Next, a second embodiment will be described. This example shows a modification of the guide means 3.

The guide means 3 comprises two plates 33, 33 to be combined in an X-shape, an adjusting portion 43 for adjusting the opening angle of the two X-shaped plates 33, 33, and And a fixing portion 53 for fixing.

The two plates 33, 33 have a loose fitting opening 33a cut out in the center width direction of one of the plates 33, and the loose fitting opening 33a of the plate 33 has the center of the other plate 33 at the center. And the opening edge of the loose fitting opening 33a is formed by a curved surface 33b such as a semicircle as shown in the figure so that the opening angle can be freely set.

The opening angle adjuster 43 spans a penetrating shaft 43b across a pair of left and right support plates 43a, 43a projecting from a lower frame portion a3 of the machine frame a corresponding to a position directly below the roll 13. The insertion shaft 43b is inserted into the center of the pair of left and right two plate bodies 33, 33 combined in an X-shape.
The upper half V surface 63 is placed directly below the
The opening angle of the V-face 63 of 3 and 33 can be adjusted about the axis, and the roll 13 is mounted on the lowest end of the V-face 63.

The fixing portion 53 is provided with the left and right support plates 43a, 43
a bolts 53a, 53a penetrating each tip of the inverted V surface of the lower half of the two plate bodies 33, 33 combined in an X shape from each
A curved guide hole 53b opened with a radius centered on the insertion shaft 43b in support plates 43a, 43a for guiding the bolts 53a, 53a with the adjustment of the opening angle of the V surface 63 which is the upper half, 53b, and a nut member (not shown) which is screwed and fastened to the screw shaft portion of the bolt 53a, 53a which penetrates the curved guide hole 53b, 53b to the outside, and loosens the nut member (not shown). By rotating the bolts 53a, 53a as desired using the curved guide holes 53b, 53b, the inclination angles of one side and both sides of the V surface 63 can be set freely. Further, the two X-shaped combined plate bodies 33, 33
Are positioned immovably in the approaching direction by a stopper body 73 provided on the insertion shaft 43b.

Next, the operation of the shell sorter according to the second embodiment will be described. One side and / or both sides of the V surface 63 can be individually set at an inclination angle. Therefore, not only can the vertical movement amount of the lower end side of the sieve 1 be varied between the time when the eccentric shaft 62 reaches from the top dead center to the bottom dead center and the time when the eccentric shaft 62 reaches from the bottom dead center to the top dead center, , The eccentric shaft 62
Is smaller than the vertical movement amount at the upper end side of the sieve 1 when moving from the top dead center to the bottom dead center, and conversely, when moving from the bottom dead center to the top dead center.
The amount of vertical movement can be made larger than the amount of vertical movement at the upper end, and vice versa.
It is also possible to make one side of the structure 62 a gentle slope and the other side a steep slope.

By adopting the guide means 3 having such a structure, it is possible to obtain various sliding and falling forces in accordance with various properties of the shellfish, and to provide the sliding and falling force with various variations, and as a result, the object to be sorted is selected. It is possible to obtain an optimum sliding and falling force in consideration of damage prevention, sorting efficiency, certainty of sorting, and the like for the clam.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a shellfish sorter of a first embodiment.

FIG. 2 is an enlarged sectional view taken along the line (2)-(2) of FIG.

FIG. 3 is an enlarged view of FIG. 1 showing a case where the inclination angle of the roll guide surface is gentle.

FIG. 4 is a schematic diagram illustrating the amount of eccentricity of an eccentric shaft and the amount and direction of roll movement.

FIG. 5 is an enlarged view of FIG. 1, showing a case where the roll guide surface has a steep inclination angle.

FIG. 6 is an enlarged sectional view of a main part of the second embodiment.

[Explanation of symbols]

 1: sieve 12: drive source 62: eccentric shaft 2: swing means 3: guide means 13: roll 23: roll guide surface 63: V surface a: machine frame 4: spring

Claims (4)

(57) [Claims] A sieve is provided under a hopper for dropping shells, and the sieve is slidably provided. The sieve is oscillated, and a sifter is used to sort shells. A swinging means for reciprocating and vertically moving by rotation of an eccentric shaft connected to a drive source, and a lower end side of the sieve is guided by a guide means capable of adjusting an inclination angle. 2. The apparatus according to claim 1, wherein said guide means includes a roll provided on a sieve, and a roll guide surface provided on a machine frame for guiding said roll in accordance with swinging by a swinging means, and having an adjustable inclination angle. The shell sorter according to claim 1, wherein: 3. The roll guide surface is formed in a V-plane, and the opening angle of the V-plane is formed so as to be adjustable. The shell sorter according to claim 2, wherein the shell is located at the lowermost end of the shell. 4. The shellfish sorter according to claim 3, wherein the sieve and the machine frame are connected by a spring for preventing a sieve dance capable of adjusting a tension.