JPS6141536B2 - - Google Patents

Description

[Detailed Description of the Invention] 1972 Patent No. 967522 for peeling small shrimp
No. (Special Publication No. 53-38240) "Small shrimp peeling device" and Patent No. 1136753 of 1981 (Special Publication No. 57-27696)
An "automated shrimp peeling device" has been proposed, but as shown in Fig. 1, small metal rollers 2, 2 are sandwiched between hard, thick peeling rollers 1, 1...
It consists of a combination of ..., and the shrimp flows in the valley formed by it, but because the device that pushes the shrimp up and down from directly above was not appropriate, the peeling efficiency was poor and the peeled skin was not good, so it was not used as raw shrimp. The product value decreases, and the problem is that the tail joints peel off, requiring a lot of manual labor when inspecting the remaining tail skin.Also, if you press too hard to remove the peeled tail skin, the meat will crack and become damaged, resulting in a very slow yield. As the situation worsened, the product value decreased and the only way to utilize it was to make surimi, and the efficiency never exceeded 50%. Therefore, in order to peel the shrimp as neatly as if you were peeling it with your fingertips, point the legs of the shrimp between the valleys of the rollers, press the body and tail evenly with your fingertips, and bite the skin between the rollers to peel off the skin. You can do this by visually looking at the direction of the shrimp, determining the position, applying an appropriate amount of force with your fingertips and applying it evenly between the rollers, and using your fingertips to correct the curvature of the shrimp so that you can peel it neatly. In order to do this, it was necessary to have the skill of the fingertips to work according to the shape of the shrimp, and furthermore, it was not possible to use the fingertips and eyes for each shrimp, which required manpower and had the disadvantage of being extremely inefficient.

This application gives the large amount of shrimp passing through the valleys of the rollers a motion similar to that of a human finger, resulting in beautiful peeled skin, a good yield rate, and a significantly improved peeling efficiency of over 95%, which significantly improves the processing capacity. , it was possible to peel shrimp without damaging the subcutaneous fat, which could not be done with conventional automatic shrimp peeling machines.

Now, the embodiment will be explained with reference to the drawings. In Fig. 1, hard large-diameter peeling rollers 1, 1...
Above the valley formed by the combination of small metal rollers 2, 2...... which are sandwiched between them, extremely soft rollers 3, 3...... which move up and down for each valley structure are arranged, and the rollers 3, 3... The average pressing force and rotational motion are transmitted according to the shape to correct the curvature of the shrimp and feed it down in a straight line. 1 is connected to one end of the skinning roller drive fan gear 7 by a rod 8 so that the surface contact given to the shrimp flowing down is synchronized with the rotational movement of . This product is characterized by the combination of a pedestal mechanism that moves an extremely soft roller up and down to improve the efficiency of peeling shrimp. That is, in FIG. 1, at the same time as the peeling roller 1 makes a reverse movement every rotation, the extremely soft roller 3 above the valley groove makes a reverse movement every rotation while moving up and down. By always setting the surface transfer direction of the peeling roller and the extremely soft roller 3 in opposite directions, the shrimp 4 is sandwiched between the small metal rollers as shown in FIGS. 2 and 3 each time the rotation direction changes. Change the left and right position to the side that will be rolled in and peel off the skin 5. 6 is a fixed wall to prevent the shrimp from scattering and falling. Shrimps have a curved back due to rigor mortis and come in a mixture of large, medium and small sizes, and their skins also vary in whether they are hard or soft. When these shrimp are made to slide down the rollers, it is difficult to direct the abdominal legs to the meshing rollers by simply pressing from above with the vertical vertical operating mechanism, and the probability of direction correction is low. Not only was this bad, but it was also impossible to straighten the shrimp's legs downward.

In the present invention, as shown by the arrow in FIG. The shrimp in contact with the surface of the soft roller 3 is rotated while its curvature is corrected, so that the legs of the shrimp always face downward, and at this time, the shrimp skin is pulled by the contact surface of the roller so as to be peeled off. Since shrimp always have different thicknesses, the shrimp will crack if too much pressure is applied from above, so this pressing roller is made of a cylinder made of extremely soft material. Therefore, the outer surface of the roller will cover the shrimp without crushing it as it rolls down. The same movement is repeated whether the rollers ride on the grooves between the rollers with some overlap or not. If the lower limit of the upper and lower ends of the soft roller that moves up and down can be adjusted depending on the thickness of the shrimp, it will not be compressed by the amount of pressure applied. This up-and-down movement allows the shrimp to slide downhill faster.

To perfectly peel the shrimp, use three rollers between the grooves that the shrimp slide through, and when the shrimp turns its legs downwards, gently press down on the back from above. The important conditions are that this action be performed equally on all shrimp, and that the shrimp, which have been bent, be made straight in the direction of the roller. To explain the configuration of the present application in more detail, the roller row for peeling the shrimp is a set of hard rubber-like, large-diameter peeling rollers 1, 1, and small metal rollers 2, 2, sandwiched between them. The part that peels the shrimp is the contact surface of the peeling roller that rotates in the direction of the lower row.
By reversing each rotation, the peeling efficiency can be doubled. The extremely soft roller 3, which is made of soft rubber and is disposed above the center of the valley groove, has a surface processed so that the shrimp skin will not easily slip.

The three groups of extremely soft rollers move up and down as follows. As shown in FIGS. 4 to 6, the driving source 3
1 converts the movement of the motor crank into a reciprocating movement of the rod 32, converts the reciprocating movement into a rotational movement of the lever 34 about the shaft 33, and the rotational movement moves the rod 35 up and down. Rod 35
is integrally connected with the rack gear 10, the 9 groups of pinions meshing with the rack gear 10, and the 3 groups of extremely soft rollers fixed to the 9 groups of pinions, so that the 3 groups of extremely soft rollers are moved by the vertical movement of the rod 35. Move up and down.

Further, the three groups of extremely soft rollers rotate as follows. As shown in FIGS. 4 and 5, a rod 8 is connected to one end 71 of the roller drive fan gear 7 driven by the driving source of the peeling roller, and the rotation centering around the shaft 72 of the fan gear 7 is connected to the rod 8. Rod 8
into a reciprocating motion. The reciprocating motion of rod 8 is the 7th
As shown in the figure, the reciprocating motion of the sliding rod 11 is changed through a rod 82 centered on an axis 81, a twisting rod 83, and a rod 85 centered on an axis 84. As shown in FIG. 6, the sliding rod 11 is
Since it is connected to the rack gear 10 parallel to the roller row by the metal fitting 12, the pinion 9 group meshing with the rack gear 10 is rotated. Since the 9 groups of pinions are each fixed to the 3 groups of extremely soft rollers,
The extremely soft roller 3 is moved by the reciprocating movement of the sliding rod 11.
The group rotates.

Further, the first group of peeling rollers rotates as follows. As shown in FIGS. 4 and 5, a gear 73 meshing with a roller drive fan gear 7 driven by a drive source is rotated. A spiral gear 74 is rotated by a gear fixed to the shaft of the gear 73, and a group of peeling rollers attached via a coupling ring 75 is rotated. Thus, the first group of peeling rollers rotates. Further, since the small metal roller 2 is disposed in contact with the surface of the skinning roller 1, it rotates as the skinning roller 1 rotates.

Then, as shown in Figure 1, the structure is installed so that the surface rotations of the ultra-soft roller and the peeling roller move in opposite directions. Therefore, by rotating the lower roller group in the opposite direction, the shrimp can be easily bent into a straight line, and as the shrimp is rotated from side to side while being pressed by the appropriate soft force of the extremely soft rollers that move up and down, the perpendicular skin of the shrimp can be turned downward. do. In this case, even if the shrimp is slightly large or small, it can be pressed against the clamping part of the lower roller with nearly the same force due to the recessed elasticity of the surface of the extremely soft roller. And no matter how much shrimp flows through the passage, this average pressing and rotation action is performed evenly, and the effect common to all types of shrimp is obtained, and the peeled finish damages subcutaneous fat. The results were exactly the same as those obtained by peeling manually. The lower limit of the roller gap shall be finely adjusted according to the size of the shrimp.

As described above, the device of the present invention has the effect of being able to peel a large amount of shrimp of various sizes without damaging the subcutaneous fat, with the same yield rate as manual peeling, and with a peeling efficiency of over 95%. That's what I got.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are side views showing the embodiment, and Figure 4 is a side view showing the embodiment.
5 is a plan view, FIG. 6 is a side view, and FIG. 7 is a perspective view showing a mechanism for converting the reciprocating motion of the rod 8 into the reciprocating motion of the sliding rod 11. It is. 1, 1... Peeling roller, 2, 2... Small metal roller, 3, 3... Extremely soft roller, 6... Fixed wall, 7... Roller drive fan gear, 8... Rod,
9,9...Pinion, 10...Rack gear, 11
...Sliding rod.

Claims (1)

[Claims] 1. A very soft roller that moves up and down is arranged above the center of the valley created by combining small metal rollers sandwiched between large diameter skinning rollers, and each rotation of the skinning roller and the very soft roller An apparatus for improving the efficiency of an automatic shrimp peeling machine, characterized in that the direction is reversely rotated at the same time as the direction of rotation of a small metal roller for each revolution.