阅读说明：本技术 一种鱼肉结节排除方法及其装置 (Fish nodule removing method and device ) 是由 杨天龙 刘康 陆田 农全安 王维邦 唐彩珍 李海金 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种鱼肉结节排除方法及其装置,方法为先使鱼肉产生高频震动,松弛鱼肉的肌纤维和筋膜,然后在鱼肉表面顺着鱼肉的肌纤维长度方向来回揉搓,直至肌纤维上局部直径较大的结节缩小至与肌纤维正常直径基本相同。装置包括第一放置平面和第二放置平面；第一放置平面的上方设有高频振动器,高频振动器连接有第一升降机构；第二放置平面的上方设有揉搓件、第二升降机构和横移机构。本发明提供的鱼肉结节排除方法及其装置,能有效去除鱼肉肌纤维上的结节,使鱼肉口感更鲜嫩。(The invention discloses a method and a device for removing fish nodules. The device comprises a first placing plane and a second placing plane; a high-frequency vibrator is arranged above the first placing plane and connected with a first lifting mechanism; a rubbing piece, a second lifting mechanism and a transverse moving mechanism are arranged above the second placing plane. The method and the device for removing the fish nodules can effectively remove the nodules on the muscle fibers of the fish, so that the fish tastes fresh and tender.)

1. A method for removing fish nodules is characterized in that fish meat is vibrated at high frequency to relax muscle fibers and fascia of the fish meat, and then the fish meat is rubbed back and forth on the surface of the fish meat along the length direction of the muscle fibers of the fish meat until nodules with larger local diameters on the muscle fibers are reduced to be basically the same as the normal diameters of the muscle fibers.

2. The method for removing fish nodules according to claim 1, wherein the high frequency vibration has a frequency of 5-15KHz and a time of 30-120 s.

3. The method for removing fish nodules according to claim 1 or 2, wherein the surface of the fish meat is contacted with the surface of the fish meat by a convex curved surface while being rubbed back and forth along the length of the muscle fiber of the fish meat, and the contact area is 0.5-2.5cm²The moving speed during kneading is 0.5-10 cm/s.

4. A fish nodule removing device is characterized by comprising a first placing plane and a second placing plane; a high-frequency vibrator (1) is arranged above the first placing plane, and the high-frequency vibrator (1) is connected with a first lifting mechanism (2); a kneading piece (6), a second lifting mechanism (8) and a transverse moving mechanism (9) are arranged above the second placing plane.

5. A fish nodule removing apparatus as claimed in claim 4, wherein the HF vibrator (1) comprises an HF drive means (11) and a contact member (12) connected, the HF drive means (11) being connected to the first lifting mechanism (2).

6. A fish nodule removing apparatus as claimed in claim 4 or 5, comprising a first conveyor belt (3), said first lying plane being located on a conveying section of the first conveyor belt (3); a supporting part (4) which corresponds to the high-frequency vibrator (1) up and down is arranged below the first conveying belt (3).

7. A fish nodule removing apparatus as claimed in claim 4, wherein the lower surface of the kneading member (6) is convexly curved.

8. A fish nodule removing apparatus as claimed in claim 4 or 7, wherein a height adaptive mechanism (7) is connected between the kneading member (6) and the second lifting mechanism (8); the height self-adaptive structure (7) comprises a base body (71), a spring (72) and an adjusting rod (73), the base body (71) is connected with the second lifting mechanism (8), the upper end of the adjusting rod (73) is in sliding fit with the base body (71), and the spring (72) is arranged between the adjusting rod (73) and the base body (71); the kneading piece (6) is connected with the lower end of the adjusting rod (73).

9. A fish nodule removing apparatus as claimed in claim 4, comprising a second conveyor belt (5), said second lying plane being provided on a conveying section of the second conveyor belt (5); the second conveying belt (5) is provided with a plurality of negative pressure holes (51), a negative pressure groove (101) is arranged below the conveying section of the second conveying belt (5), and the negative pressure groove (101) is connected with a negative pressure pipe (102).

10. A fish nodule removing apparatus as claimed in claim 4, wherein the traversing mechanism (9) comprises a fixed mount (94); the fixed seat (94) is connected with a guide rail (93) and is also rotatably connected with a screw rod (92), and a driving device (95) linked with the screw rod (92) is arranged on the fixed seat (94); the guide rail (93) is connected with a sliding block (91) in a sliding mode, the sliding block (91) is in threaded connection with the screw rod (92), and the sliding block (91) is connected with the second lifting mechanism (8).

Technical Field

The invention relates to the field of fish processing, in particular to a method and a device for removing fish nodules.

Background

According to tests, the diameter of muscle fiber and the hardness of fish meat have negative correlation, and the finer the muscle fiber, the denser the variety has, the more the intramuscular fat deposition amount is larger than that of the variety with thicker muscle fiber and lower density, and the taste is better. In addition, the size of the muscle fiber diameter is also related to the hyper-contractile effect. Before the live fish is transported to a fish processing plant and the fish production process is started, the stress phenomenon occurs to the fish in the transportation process due to the extremely sensitive environment change of the fish, and the fish continuously struggles and jumps. Due to the fact that the whole transportation time is long, when fishes are in a stress state for a long time, muscle fibers are frequently and continuously contracted, and actin and myosin cannot be sufficiently separated, a part of tissues in the muscle fibers are always in a contracted state, the arrangement of the muscle fibers is disordered, the situation that a large number of diameters of the muscle fibers of the fishes are locally increased is caused, and muscle fiber nodules are formed. When the muscle fiber nodules are formed, fascia between the muscle fibers and the fish skin and between the muscle fibers and the fish bones are also in a tense state and wraps the muscle fibers, so that the muscle fiber nodules cannot relax and shrink quickly, and the muscle fiber nodules of the dead fishes still exist. After the fish is made into food, the nodules are still not eliminated, and the taste is poor when the fish is eaten.

Disclosure of Invention

The invention aims to provide a method and a device for removing fish nodules, which can effectively remove the nodules on muscle fibers of fish meat and enable the fish meat to be fresh and tender in taste.

In order to achieve the purpose, the invention provides a method for removing fish nodules, which comprises the steps of firstly enabling fish to generate high-frequency vibration to relax muscle fibers and fascia of the fish, and then kneading the fish surface back and forth along the length direction of the muscle fibers of the fish until the nodules with larger local diameters on the muscle fibers are reduced to be basically the same as the normal diameters of the muscle fibers.

As a further improvement of the invention, the frequency of the high-frequency vibration is 5-15KHz, and the time of the high-frequency vibration is 30-120 s.

As a further improvement of the invention, when the fish surface is rubbed back and forth along the length direction of muscle fibers of the fish, the fish surface is contacted with the fish surface through the convex curved surface, and the contact area is 0.5-2.5cm²The moving speed during kneading is 0.5-10 cm/s.

In order to achieve the above object, the present invention also provides a fish nodule removing apparatus, comprising a first placing plane and a second placing plane; a high-frequency vibrator is arranged above the first placing plane and connected with a first lifting mechanism; a rubbing piece, a second lifting mechanism and a transverse moving mechanism are arranged above the second placing plane.

As a further improvement of the present invention, the high-frequency vibrator includes a high-frequency driving device and a contact member connected to each other, and the high-frequency driving device is connected to the first elevating mechanism.

As a further improvement of the invention, the device comprises a first conveying belt, wherein the first placing plane is positioned on the conveying section of the first conveying belt; and a supporting part which corresponds to the high-frequency vibrator up and down is arranged below the first conveying belt.

As a further improvement of the present invention, the lower surface of the kneading member is in a shape of a convex curved surface.

As a further improvement of the invention, a height self-adaptive structure is connected between the kneading piece and the second lifting mechanism; the height self-adaptive structure comprises a base body, a spring and an adjusting rod, the base body is connected with the second lifting mechanism, the upper end of the adjusting rod is in sliding fit with the base body, and the spring is arranged between the adjusting rod and the base body; the rubbing piece is connected to the lower end of the adjusting rod.

As a further improvement of the invention, the device comprises a second conveying belt, wherein the second placing plane is arranged on the conveying section of the second conveying belt; the second conveying belt is provided with a plurality of negative pressure holes, a negative pressure groove is arranged below the conveying section of the second conveying belt, and the negative pressure groove is connected with a negative pressure pipe.

As a further improvement of the present invention, the traversing mechanism comprises a fixed seat; the fixed seat is connected with a guide rail and a screw rod in a rotating way, and the fixed seat is provided with a driving device which is linked with the screw rod; the guide rail is connected with a sliding block in a sliding mode, the sliding block is connected with the screw rod in a threaded mode, and the sliding block is connected with the second lifting mechanism.

Advantageous effects

Compared with the prior art, the method and the device for removing the fish nodules have the advantages that:

1. the fish flesh is vibrated at high frequency by the high-frequency vibrator to relax muscle fibers and fascia of the fish flesh, and then the kneading piece is used for kneading the fish flesh back and forth along the length direction of the muscle fibers of the fish flesh, so that the disordered muscle fibers caused by being in a stress state for a long time can be straightened again, and nodules with larger local diameters on the muscle fibers are reduced to be basically the same as the normal diameters of the muscle fibers. The fish meat without muscle fiber nodules has the advantages that the fish meat is fresh, tender and tasty after being made into food, the taste is comfortable, the condition that particles are locally present cannot occur when people chew the fish meat, and the taste is more comfortable.

2. When the fish is vibrated at high frequency, in order to prevent the fish from being vibrated too loosely to ensure the original toughness, the vibration frequency is limited to 5-15KHz, and the vibration time is 30-120s to ensure that the muscle fibers and fascia of the fish are loosened but not loosened.

3. The contact area of the kneading piece and the fish surface is 0.5-2.5cm²The moving speed during kneading is 0.5-10 cm/s, so that the knot removing effect is good, and the problems of large resistance and broken fish during kneading caused by too large contact area are avoided.

4. Through setting up first conveyer belt and second conveyer belt, let the flesh of fish carry out getting rid of muscle fibre nodulation in transportation process, improve production efficiency. The negative pressure holes of the conveying section of the second conveying belt are provided with suction through the negative pressure grooves and the negative pressure pipe, fish meat is fixed, the problem that the fish meat shifts relative to the second conveying belt when being kneaded is avoided, and the problem that nodules are not completely removed is prevented.

5. Because the surfaces of different fishes or the fish meat after the fish slices are taken are not flat, a height self-adaptive structure is arranged between the kneading piece and the second lifting mechanism, and the kneading piece is always pressed against the surface of the fish meat by utilizing the elasticity of the spring in the kneading process, so that the normal operation of kneading is ensured, and the removal of the nodules of the muscle fiber of the fish meat is ensured.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of the sliced fish meat;

FIG. 2 is a schematic view showing the structure of the fish nodule removing apparatus;

FIG. 3 is a schematic view of a first conveyor belt, a high frequency vibrator, and a first lifting mechanism;

FIG. 4 is a front cross-sectional view of the second conveyor belt, height adaptive structure, rubbing element and traversing mechanism;

fig. 5 is a side cross-sectional view of the height adaptive structure, the kneading members and the traversing mechanism.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

Detailed description of the inventionas shown in fig. 1 to 5, a fish nodule removing apparatus includes a first placing plane and a second placing plane. A high-frequency vibrator 1 is arranged above the first placing plane, and the high-frequency vibrator 1 is connected with a first lifting mechanism 2. A kneading piece 6, a second lifting mechanism 8 and a transverse moving mechanism 9 are arranged above the second placing plane.

The high-frequency vibrator 1 includes a high-frequency driving device 11 and a contact member 12 connected, and the high-frequency driving device 11 is connected to the first elevating mechanism 2. The high-frequency driving device 11 may employ a link type linear reciprocating driving mechanism.

The fish nodule removing device further comprises a first conveying belt 3, and the first placing plane is positioned on the conveying section of the first conveying belt 3. A supporting part 4 corresponding to the high-frequency vibrator 1 up and down is arranged below the conveying section of the first conveying belt 3. In this embodiment, supporting part 4 is many backup rolls of arranging side by side, and the backup roll contacts bottom the section of carrying with first conveyer belt 3, plays the supporting role to the section of carrying of first conveyer belt 3 and flesh of fish 13, when carrying out the high frequency vibrations to flesh of fish 13, and the section of carrying of first conveyer belt 3 can not collapse downwards, ensures that the vibrations can propagate on flesh of fish 13 betterly, and vibrations are more thorough.

The lower surface of the kneading member 6 is a convex curved surface, and a spherical surface may be used.

A height self-adaptive structure 7 is connected between the kneading piece 6 and the second lifting mechanism 8. The height self-adaptive structure 7 comprises a base body 71, a spring 72 and an adjusting rod 73, wherein the base body 71 is connected with the second lifting mechanism 8, the upper end of the adjusting rod 73 is in sliding fit with the base body 71, and the spring 72 is arranged between the adjusting rod 73 and the base body 71. The kneading member 6 is coupled to the lower end of the adjusting lever 73. In this embodiment, in order to improve the kneading efficiency, the number of the adjusting rods 73 is plural and independent, and each adjusting rod is provided with the kneading member 6.

The fish nodule removing device further comprises a second conveying belt 5, and the second placing plane is arranged on the conveying section of the second conveying belt 5. The second conveying belt 5 is provided with a plurality of negative pressure holes 51, a negative pressure groove 101 is arranged below the conveying section of the second conveying belt 5, the opening of the negative pressure groove 101 faces the negative pressure holes 51 on the conveying section of the second conveying belt 5, the negative pressure groove 101 is connected with a negative pressure pipe 102, and the negative pressure pipe 102 is connected with a vacuum pump. The second conveyor belt 5 is located behind the first conveyor belt 3. The negative pressure grooves 101 and the negative pressure pipes 102 provide suction force for the negative pressure holes 51 of the conveying section of the second conveying belt, fish meat is fixed, the problem that the fish meat 13 shifts relative to the second conveying belt 5 during kneading is avoided, and the problem that nodules are not completely removed is solved.

The traversing mechanism 9 comprises a holder 94. The fixed seat 94 is connected with two guide rails 93 and is also rotatably connected with a screw rod 92, a driving device 95 linked with the screw rod 92 is installed on the fixed seat 94, and the driving device 95 is a motor. The guide rail 93 is slidably connected with a slide block 91, the slide block 91 is in threaded connection with a screw rod 92, and the slide block 91 is connected with the second lifting mechanism 8. The driving device 95 drives the screw rod 92 to rotate, so that the slide block 91 drives the slide block 91 to reciprocate left and right.

The method for removing fish meat nodules of the above fish meat nodule removing apparatus is that the fish meat 13 is put on the conveying section of the first conveying belt 3, the first conveying belt 3 is stopped when the fish meat 13 moves to the lower side of the high-frequency vibrator 1, and the high-frequency vibrator 1 is lowered by the first elevating mechanism 2 until the contact member 12 is pressed on the fish meat 13. Firstly, the high-frequency driving device 11 drives the contact element 12 to enable the fish 13 to generate high-frequency vibration, and muscle fibers and fascia of the fish are loosened. When the fish meat 13 is the tilapia mossambica after the filleting, the vibration frequency is 10KHz, and the high-frequency vibration time is 70 s. When the muscle fibers and the fascia of the fish flesh are relaxed, the first conveyor belt 3 moves the fish flesh 13 onto the second conveyor belt 5. When the fish meat 13 moves below the kneading members 6, the second elevating mechanism 8 lowers the kneading members 6 and presses the fish meat 13, and the lower curved surfaces of the kneading members 6 are in contact with the fish meat 13 under the action of the springs 72 of the height adaptive structure 7. The transverse moving mechanism 9 drives the rubbing piece 6 to move left and right, and the rubbing piece rubs the surface of the fish 13 back and forth along the length direction of muscle fibers of the fish until nodules with larger local diameters on the muscle fibers are reduced to be basically the same as the normal diameters of the muscle fibers. In the process, the second conveyer belt 5 intermittently moves, moves forward by a small section each time, and repeatedly rubs one rubbing piece 6 along the same part of the fish meat 13 when the second conveyer belt is static, so that all parts of the fish meat 13 can be rubbed in place. Finally, the second lifting mechanism 8 lifts the kneading element 6 away from the fish flesh 13, and the second conveyor belt 5 moves the fish flesh 13 out again.

The fish surface is contacted with the fish surface via the convex curved surface when back and forth kneading along the length direction of muscle fiber of fish, and the contact area is 0.5-2.5cm²The moving speed during kneading is 0.5-10 cm/s.

In addition, the meat quality varies according to the fish species, the frequency of the high-frequency vibration is between 5KHz and 15KHz, and the time of the high-frequency vibration is controlled between 30 s and 120 s.

The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.