JPH0130067Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a fish body that automatically sets the head cutting position according to the size of the fish body when cutting the head of the fish body while the conveyor is moving. This invention relates to a head cutting positioning device.

(Configuration of conventional example and its problems) As a device of this type, the inventors of the present application
We have developed a device as disclosed in Publication No. 64799. As shown in FIG. 9, this device includes a box body b whose base end is supported movably up and down on an axis a, and a fish body thickness detection wheel c pivoted on the tip of the box body b. An arm culm e protruding from the base end of the box body b is arranged such that the head receiving plate d of the fish body is arranged so as to be movable in the direction toward and away from the fish body.
is connected to a lever f connected to the head receiving plate d, and by vertical movement of the detection wheel c, the head receiving plate d is moved in the direction toward and away from the fish body via the lever f, and the detection wheel c is also moved. It is configured to constantly rotate to move the fish body toward the head receiving plate d.

However, according to this device, the detection wheel c rotates once every time a fish passes by, so the fish can overcome the frictional force with the conveyor g and slide toward the head receiving plate d. If a sufficient pushing force is not obtained to cause the fish to move, and if the downward force of the detection wheel c is increased to increase this pushing force, the surface of the detection wheel c will sink into the surface of the fish, causing the fish to move. There were other problems, such as the inability to accurately detect the thickness of the fish, resulting in inaccurate positioning of the head, and the inability to detect fish bodies with soft flesh.

(Purpose of the invention) This invention solves the above-mentioned problems by accurately detecting the thickness of the fish body being transferred by the conveyor, and by reliably overcoming the frictional force with the conveyor, the fish body is placed on the head alignment board. To provide a device for positioning the decapitation of a fish body, in which the decapitated head of a fish is pushed toward the fish body, and furthermore, the amount of the pushing movement is minimized to enable highly accurate positioning of the decapitated head of a fish body.

(Structure of the invention) In order to achieve the above object, the fish head cutting and positioning device of the present invention is applied to one side of the conveyor 1 that transfers the fish from the front side to the rear side with the head facing one side. A head end receiving guide plate 3 is arranged parallel to the conveyor 1, and behind the terminal end of this guide plate 3,
A head alignment plate 5 that moves toward and away from the head of the fish by the operation of the stapling motor 11.
A rotary brush 14 is disposed on the conveyor 1 facing the head alignment plate 5 for driving fish bodies into the head alignment plate 5 side.
A fish body thickness detection member 19 that slides on the upper surface of the fish body and moves up and down above the conveyor 1 on the front side of the body.
A plurality of proximity switches 31 to 34 are provided to detect the amount of vertical movement thereof, and the proximity switches 31 to 34 determine the time interval at which the fish body reaches the position of the head alignment plate 5 from the thickness detection member. Afterwards, the stapling motor 11 is operated to move the head alignment plate 5 to a head receiving position corresponding to the amount of vertical movement of the thickness detection member, so that the thickness detection member 19 is aligned with the surface of the fish body. The thickest part of the fish body can be moved to the proximity switch 3 by just lightly sliding it into contact with the fish body.
1 to 34, and when the fish body reaches the head alignment plate 5, the stapling motor 11 is operated according to the detected thickness, and the head alignment plate 5 is moved to a predetermined head receiving position. After moving up to this point, it stops, and in this state, the tip of the fish's head is brought into contact with the head alignment plate 5 by the rotating brush, and the position at which the head is cut is accurately set.

(Description of Embodiments) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a slat conveyor that runs in an endless manner, and a large number of trays 2, 2, 2, . . . 2 are attached to the upper surface of the conveyor in parallel.

Reference numeral 3 denotes a fish head tip receiving guide plate disposed along one side of the slat conveyor 1 in parallel with the conveyor 1, and is in an upright state facing an appropriate length rearward from the conveyance start end (front end) of the conveyor 1. A head-mounted belt conveyor 4 is disposed parallel to the conveyor 1 between the guide plate 3 and one side edge of the conveyor 1.

Reference numeral 5 denotes a head alignment plate disposed behind the terminal end of the guide plate 3 so that its fish body receiving surface 6 is the same as the extension of the guide surface of the guide plate 3, and as shown in FIGS. The reciprocating culm 7 is fixed to the tip of a movable culm 7, and the reciprocating culm 7 has the upper ends of rotary levers 8, 9 rotatably pivoted at two points along its length, and the lower ends of the rotary levers 8, 9. A stepping motor 11 is rotatably connected to a fixed frame 10 and has a rotating shaft 9a of one lever 9 disposed on the fixed frame 10.
It is connected to.

Reference numeral 12 denotes a limit switch fixedly disposed at a suitable position near the reciprocating culm 7, which stops the head alignment plate 5 on the extension line of the guide plate 3 when a contact piece 13 fixed to the reciprocating culm 7 comes into contact with it. It is.

Reference numeral 14 denotes a rotary brush disposed on the conveyor 1 facing the receiving surface 6 of the head alignment plate 5. The rotary brush 14 is driven from the miter gear box 16 through the brush rotation mechanism 17 using the conveyor drive unit 15 as the power source. 18 rotates and drives the fish body toward the head alignment plate 5 with the lower circumference of the brush.

Reference numeral 19 denotes a thickness detecting member disposed above one side of the conveyor 1 on the front side of the head alignment plate 5 so as to be movable up and down, and as shown in FIGS. A sliding contact plate 21 is attached to the body of the fish body A near the head,
The sliding contact plate 21 has a lower surface formed as an inclined surface 22 whose height gradually decreases in the direction of movement of the fish body A conveyed by the conveyor 1, and a narrow portion between the downwardly inclined end and the rear end edge. It is formed on a horizontal surface 23.

24 is a fixed stand provided on one side of the conveyor 1;
A support rod 25 is provided upright, and a bearing member 26 is fixed to the support rod 25 so as to be able to move up and down. The base end of the planar L-shaped arm 20 is fixed.

Further, a mounting piece 28 is integrally fixed to the other end of the horizontal rotation shaft 27, and a lower end of a vertically rectangular swing plate 29 is fixed to this mounting piece 28.

30 is the bearing member 26 facing the rocking plate 29;
It is a vertically long rectangular sensor plate whose lower end is fixed integrally with the sensor plate, and a plurality of proximity switches 31 to 34 are mounted diagonally downward from the upper end and are shifted backward by a certain distance. The lower proximity switch 34 and the upper proximity switch 31 are sequentially closed. The stepping motor 1 is electrically connected to the proximity switches 31 to 34 by the number of closed proximity switches 31 to 34.
It is configured to increase or decrease the rotational drive amount of 1.

Reference numeral 35 denotes a spring stretched between the lower end of the mounting piece 28 and a protruding piece 36 protruding from one side of the bearing member 26, which biases the rocking plate 29 in the direction away from the proximity switch. It is.

Reference numeral 37 denotes an adjustment screw threaded through a portion 38 of the bearing member 26 facing the protrusion 36, and its tip abuts against the protrusion 36 to prevent rotation of the rocking plate 29 due to the force of the spring 35. This screw 37
By adjusting the rotation of the swing plate 29, the swing plate 29 is positioned near the lowermost proximity switch 34, and the sliding plate 2
1 is adjusted to a height position at which it slides into contact with a fish body A having a predetermined thickness.

39 is a circular rotary cutter disposed behind the head alignment plate 5, and its lower peripheral portion is inserted into the gap between the conveyors 1 and 4. 40 is a drive motor for the cutter 39.

(Function) To describe the function of the embodiment configured as described above, the fish A is driven into the conveyor 1 from the other end of the conveyor 1 on the transport start end side of the conveyor 1 with its head facing toward the conveyor. conveyor 1 one after another with the tip of the head in contact with guide plate 3.
is placed on tray 2.

In this state, if the fish A is transported by the movement of the conveyor 1 and reaches the sliding contact plate 21, it will come into sliding contact with the inclined surface 22 of the sliding contact plate 21 and push up the sliding contact plate 21. , the horizontal rotation shaft 27 is rotated via the L-shaped arm 20, and the swing plate 29 is rotated in a direction in which it overlaps the sensor plate 30.

This rotation angle increases in proportion to the amount of upward movement of the sliding contact plate 21. When the rotation angle is small, only the lower proximity switch 34 is shut off, and as the rotation angle increases, the upper proximity switch 34 is closed. They are sequentially blocked by the swing plate 29. Further, the amount of rotational drive of the stepping motor 11 changes stepwise in proportion to the number of interruptions of the proximity switches 31 to 34, and the time interval at which the fish body detected by the sliding contact plate 21 reaches the position of the head alignment plate 5. It is operated later to move the reciprocating culm 7 backward, and to separate the head alignment plate 5 from the extension line of the head guide plate 3 by a predetermined distance. At the same time, the fish body whose thickness has been detected is washed up against the head alignment plate 5 side by the rotating brush 14, and the tip of its head is brought into contact with the receiving surface 6, and the part connected to the body is connected to both belts 1. , 4, and the circular cutter 39
The head is severed.

Many of the fish bodies A fed onto the conveyor 1 have almost no difference in body length or wall thickness, and the sliding contact plate 21 By adjusting the height of the sliding contact plate 21 and the head alignment plate 5, most fish bodies keep the head in contact with the guide plate 3 without moving the sliding contact plate 21 upward. It passes through and is cut by a cutter 39.

Of course, it is also possible to adjust the height of the sliding contact plate 21 for small fish bodies, detect a thicker fish body, position it with the head alignment plate 5, and then cut off the head. good.

(Effect of the invention) As described above, according to the fish head cutting and positioning device of the present invention, an appropriate length is provided on one side of the conveyor 1 that transfers the fish body with the head directed to one side, parallel to the conveyor 1. Since a fish head tip receiving guide plate 3 is provided, all the fish are conveyed to the thickness detection member 19 side with their head tips aligned accurately on the same straight line by this guide plate 3. Thus, the thickness of a predetermined portion of a fish body can be reliably detected by the thickness detection member.

Furthermore, this thickness detection member is configured to slide up and down on the upper surface of the fish body, and the amount of vertical movement is controlled by a plurality of proximity switches 31 to 34.
Since the thickness detecting member 19 is configured to detect the fish body by lightly sliding on the surface of the fish body, the thickest part of the fish body can be detected by the proximity switches 31 to 3.
4 allows more accurate detection.

Furthermore, after a time interval when the fish body whose thickness has been detected by the proximity switches 31 to 34 reaches the position of the head alignment plate 5 from the thickness detection member 19, the stapling motor 11 is operated to remove the head alignment plate 5. 5 to the head receiving position according to the amount of vertical movement of the thickness detecting member, the thickness detecting member 19 can be moved regardless of the downward movement of the thickness detecting member 19 after detecting the thickness. The head cutting position for the passing fish body can be set in advance, and when the fish body reaches the position of the head alignment plate 5, the stepping motor is operated to move the fish body to the head receiving position according to its thickness. The head alignment plate 5 moves and stops, and in this state, the tip of the fish's head is brought into contact with the head alignment plate 5 by a rotating brush, so that the head cutting position can be set accurately. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is a simplified plan view thereof, Fig. 2 is a simplified front view of the thickness detection part, Fig. 3 is a side view thereof, and Fig. 4 is a schematic diagram of the head alignment part. FIG. 5 is a simplified front view, FIG. 5 is a side view of the same, FIG. 6 is an enlarged side view of a part of the thickness detection part and rotating brush part, FIG. 7 is a plan view thereof, and FIG. 8 is a head alignment part. FIG. 9 is an enlarged front view showing a conventional mechanism. 1... Conveyor, 3... Reception guide plate, 5...
Head alignment plate, 6... Head receiving surface, 14... Rotating brush, 19... Thickness detection member.

Claims (1)

[Scope of utility model registration request] A guide plate 3 for receiving the tip of the fish head parallel to the conveyor 1 is provided on one side of the conveyor 1 for transferring the fish from the front side to the rear side with the fish head facing one side.
A head alignment plate 5 is disposed behind the end of the guide plate 3, and the head alignment plate 5 moves toward and away from the head of the fish by the operation of the stepping motor 11. A rotary brush 14 is disposed on the conveyor 1 facing the head alignment plate 5 for driving the fish bodies into the head alignment plate 5 side, and furthermore, a rotating brush 14 for driving the fish bodies into the head alignment plate 5 side is provided above the conveyor 1 on the front side of the head alignment plate 5. A fish body thickness detecting member 19 that slides on the upper surface and moves vertically is provided, and a plurality of proximity switches 31 to 34 are provided to detect the amount of vertical movement of the fish body thickness detecting member 19.
After the time interval in which the fish body reaches the position of the head alignment plate 5 from the thickness detection member by steps 34 to 34, the stepping motor 11 is operated to move the head alignment plate 5 according to the vertical movement amount of the thickness detection member. A fish head cutting positioning device characterized in that the fish head is moved to a head receiving position.