JPH09121759A - Apparatus for removing dorsal entrail of lobster or prawn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the simple and accurate practice of contact and separation of an idling roller. SOLUTION: This apparatus for removing dorsal entrails of a lobster or a prawn is obtained by securing a connecting board 23 having an eccentric shaft 24 to an end (17a) protruding into a housing 1 of a crank shaft 17 supporting an idling roller 20, supporting an operating lever 28 in the housing 1 with a shaft 27 so as to enable the free shaking, connecting the eccentric shaft 24 to the operating lever 28 with a link 30, protruding an operating part 29 at the tip of the operating lever 28 through a slit 34 opened ion a lateral face (1b) of the housing 1 to the outside and marking graduations 35 corresponding to the size, etc., of the lobster (a) along the lateral edge of the slit 34. When the operating part 29 is slid along the slit 34 while adjusting the part to the scales 35, the operating lever 28 is shaken to shake the crank shaft 17 through the link 30 and the connecting board 23. Thereby, the idling roller 20 is brought near to or separated from a rotating disk 9 to properly regulate the interval therebetween.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing the black linear dorsal intestine on the back of a shrimp.

[0002]

2. Description of the Related Art Conventionally, as this type of back intestine removing device,
The ones described in US Pat. No. 5,290,199 are known. This is because a pair of rotating discs arranged at intervals and a rotating cutter having a row of chevron teeth on the outer periphery are arranged side by side on one side surface of the housing so as to be rotationally driven about axes parallel to each other. The structure is such that an idle roller having a circumferential groove formed in the center portion in the thickness direction is provided on the side thereof so as to be able to come into contact with and separate from the rotary disk side by the swing of the swing shaft. Then, the shrimp are sandwiched by a pair of rotating discs and fed between the rotating cutter and the circumferential groove of the idle roller, and when the shrimp passes through the circumferential groove of the rotating cutter and the idle roller, the rotating cutter cuts the spine's spine. At the same time, the cut spine is pressed against both rotating discs with an idle roller to open it, and the cheek teeth are used to scrape out the back intestine from the open spine.

On the other hand, since the shrimp to be processed have variations in size and the like, the contact / separation of the idle roller is adjusted in order to press the shrimp against both rotating discs with an appropriate pressure. Conventionally, the structure of that portion is such that a screw shaft is provided in the housing and one end of the screw shaft is screwed into a nut member connected to the swing shaft of the idle roller, and a knob provided at the other end of the screw shaft is attached to the other part of the housing. It has been designed that the idle roller is projected to the outside and the screw shaft is rotated by a knob to move the nut member in a screwed manner to swing the swing shaft to adjust the contact / separation of the idle roller.

[0004]

However, with the conventional screw shaft, for example, if a large adjustment of the contact / separation of the idle roller is performed, the knob must be rotated in large amounts, which is a troublesome adjustment. It was Also,
Such adjustment often relies on the feeling of the operator, and tends to lack accuracy. The present invention was completed in view of the above circumstances, and an object thereof is to make it possible to easily and accurately adjust the contact / separation of an idle roller.

[0005]

Means for Solving the Problems As a means for achieving the above object, the present invention is provided on one side surface of a housing.
A pair of rotary discs arranged at intervals and a rotary cutter with an array of chevron teeth on the outer periphery are arranged side by side so that they can be driven to rotate about axes parallel to each other. An idler roller with a circumferential groove cut in the center of the direction is provided so that it can be moved toward and away from the rotating disc side by the swinging of the swinging shaft. In the device for removing the intestine of a shrimp, which is fed into the circumferential groove, and while the shrimp passes, the dorsal intestine is scraped off while cutting the spine's spine while the shrimp passes, in the housing, the rocking shaft and An operation lever connected via a link is swingably supported, and the tip of the operation lever is projected outside through a slit formed on the other side surface of the housing, and the tip of the operation lever is slid along the slit. By moving, eye With a configuration in which contact and separation adjustment of Rurora, characterized in was a component which bears a scale along the slit.

[0006]

According to the present invention, the contact / separation of the idle roller can be easily and quickly adjusted by simply sliding the tip of the operating lever along the slit.
Moreover, since the slits are graduated, accurate adjustments can be made according to the size of the shrimp.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 1 is a box-shaped housing for accommodating a drive mechanism and the like. A cylindrical cover 3 whose upper and lower surfaces are opened to the outlet 5 is detachably fitted.

On the upper part of one side of the plate 2 is a first
The rotating shaft 7 is rotatably supported by the bearing 8 and
A pair of rotating disks 9 made of a synthetic resin having flexibility are fixed to the tip of the rotating shaft 7 with a predetermined interval.
Below the first rotary shaft 7, a second rotary shaft 11 is rotatably supported by a bearing 12 in a parallel posture, and at the tip thereof, angled teeth 14 are arranged in rows on the outer periphery at equal pitches. The cutter 13 is fixed and is inserted between both the above-mentioned rotating disks 9. The first and second rotating shafts 7 and 11 are connected to the motor 16 housed in the housing 1 by transmission systems of different systems, and rotate the rotating cutter 13 at a higher speed than the rotating disk 9. I'm supposed to get it.

A crankshaft 17 is swingably supported by a bearing 18 on the side of the first rotary shaft 7 described above.
An idle roller 20 made of hard resin is rotatably supported on the crankshaft 17, and
A circumferential groove 21 is formed on the circumferential surface at the center portion in the thickness direction. The idle roller 20 functions to press the shrimp a toward the rotating disk 9 with an appropriate pressure, and can be adjusted so as to approach or separate from the rotating disk 9 as the crankshaft 17 swings. ing.

The contact / separation adjusting structure of the idle roller 20 will be described with reference to FIG. A connecting plate 23 is fixed to the projecting end 17a of the crankshaft 17 into the housing 1, and a shaft 24 is provided at a position eccentric from the projecting end 17a serving as the swing center. On the other hand, a base end of an operating lever 28 is swingably supported by a shaft 27 on a bracket 26 provided on the bottom surface of the housing 1. One end of a link 30 is supported by the eccentric shaft 24 described above, and a shaft 31 provided at the other end of the link 30 is fitted in a long hole 32 opened at an intermediate position of the operating lever 28.

Further, a longitudinal slit 34 is opened in the side surface 1b adjacent to the side surface 1a provided with the plate 2 and the like in the housing 1, and an operating portion 29 provided at the tip of the operating lever 28 is provided. , Projecting to the outside through the slit 34. That is, when the operation unit 29 is moved up and down along the slit 34, the operation lever 28 is swung around the shaft 27, and the linking plate 23 is swung while the link 30 is swung, so that the crank shaft 17 swings. When driven, the idle roller 20 is driven as shown by the broken line or chain line in FIG.
It can be adjusted toward and away from the rotary disk 9.

The operating lever 28 can be held at the position where the swing is stopped by friction provided between the operating lever 28 and the slit 34 or by an appropriate holding means. This is to hold the idle roller 20 in the adjusted position to apply pressure to the sandwiched shrimp a. A scale 35 corresponding to the size and type of the shrimp a is formed along one side edge of the slit 34 (see FIG. 1), and a mark 36 indicating the scale 35 is formed on the operation unit 29. There is.

The first embodiment has the above-mentioned structure, and its operation will be described below. First, while aligning the mark 36 with the scale 35 corresponding to the size and type of the shrimp a to be processed, the operating portion 29 is slid along the slit 34 and the swing position of the operating lever 28 is adjusted. As a result, as described above, the crankshaft 17 is swung via the link 30 and the connecting plate 23, and the distance between the idle roller 20 and the rotating disk 9 is adjusted appropriately.

Then, the shrimp a is grabbed by hand and inserted into the space between the rotary disk 9 and the circumferential groove 21 of the idle roller 20 through the insertion port 4 on the upper surface of the cover 3. At that time, the head of the shrimp a is placed downward, the spine is on the side of the rotating disk 9, and the belly is on the idle roller 20.
Put it in a side-facing posture. The thrown-in shrimp a is pressed by the idle roller 20 toward both rotating discs 9 with an appropriate pressure, and the both rotating discs 9 having flexibility spread elastically and firmly sandwich the prawn a between them. ,
It is sent to the rotary cutter 13.

The back of the sent shrimp a is cut by the rotary cutter 13 and is opened from the cutting portion by the action of the circumferential groove 21 of the idle roller 20, and the back intestine is cut by the angled teeth 14 of the rotary cutter 13. Is scratched out. After that, the shrimp a is dropped from the outlet 5 and taken out.

When the size or type of the shrimp a is changed, the mark 36 is aligned with the corresponding scale 35, and the operating portion 29 is slid along the slit 34 in the same manner. Since the space between the shrimp 9 and 9 is properly adjusted, the shrimp a may be added in the same manner as above.

As described above, according to this embodiment, it is possible to easily and quickly adjust the contact / separation of the idle roller 20 simply by sliding the operating portion 29 of the operating lever 28 along the slit 34. The work efficiency can be greatly improved, and since the slits 34 are provided with the scales 35, it is possible to perform accurate adjustment according to the size of the shrimp a and the like.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment,
A change is made to the contact / separation adjusting mechanism of the idle roller 20. That is, one end of the first link 41 is fixed to the projecting end 17a of the crankshaft 17 into the housing 1,
A second link 42 is passed between the other end of the first link 41 and an intermediate position of the operating lever 28, and is connected by shafts 43 and 44. The other structures are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and the duplicated description will be omitted.

According to the second embodiment, when the operating portion 29 is moved up and down along the slit 34, the operating lever 28 is moved.
Is oscillated around the shaft 27, and the second link 42 is oscillated while the first link 41 and the crankshaft 17 integrated therewith are oscillated and driven, and the idle roller 20 moves as shown by the broken line or chain line in FIG. , Is adjusted toward and away from the rotating disk 9. Similar to the first embodiment, the operating portion 2 of the operating lever 28
By simply sliding 9 along the slit 34, the contact / separation of the idle roller 20 can be adjusted easily and quickly, and the scale 35 can be used for accurate adjustment.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire device according to a first embodiment of the present invention.

FIG. 2 is a rear view showing a contact / separation adjusting mechanism of an idle roller.

FIG. 3 is a rear view showing a contact / separation adjusting mechanism of an idle roller according to a second embodiment.

[Explanation of symbols]

a ... shrimp 1 ... housing 1a ... (of housing 1)
One side surface 1b ... Other side surface (of the housing 1) 7 ... First rotating shaft
9 ... Rotating disk 11 ... 2nd rotating shaft 13 ... Rotating cutter 14 ... Angle teeth
17 ... Crank shaft 20 ... Idle roller 21 ... Circumferential groove 23 ... Connection board
24 ... Eccentric shaft 27 ... Shaft 28 ... Operating lever 29 ... Operating part 30 ... Link 34 ... Slit 35 ... Scale 41 ... First link 42 ... Second link

Claims (1)

[Claims] 1. A pair of rotating disks, which are arranged at intervals, and a rotating cutter having a row of chevron teeth on the outer periphery, are arranged side by side on one side surface of the housing so as to be rotatable about axes parallel to each other. At the same time, an idle roller with a circumferential groove cut in the central portion in the thickness direction is provided on the side of the rotary disc so that it can be moved toward and away from the rotary disc by swinging the swing shaft. In a device for removing the intestine of a shrimp that sandwiches the shrimp and feeds it between the rotating cutter and the circumferential groove of the idle roller, and while the shrimp passes through, cuts the back of the shrimp and scrapes out the dorsal intestine. An operating lever connected to the swing shaft via a link is swingably supported in the housing, and a tip of the operating lever is projected to the outside through a slit formed on another side surface of the housing. The tip of the operating lever By sliding along the slit, with the configuration in which the contact and separation adjustment of the idle rollers, the back intestine removal device of shrimp, characterized in that given the scale along the slit.