A fish killing machine

Abstract

The present invention provides a fish killing machine, including a fish body descaling mechanism and a fish belly and fish back descaling mechanism, the fish belly and fish back descaling mechanism includes two groups of rollers arranged oppositely and rotating in opposite directions and a conveying mechanism for conveying fish to between the two groups of rollers; the rollers are cylindrical, and a plurality of blade teeth are evenly arranged on the outer circumference of each group of rollers, and in the axial direction of the rollers, a blade tooth gap for discharging fish scales is provided between any two adjacent groups of blade teeth. In the fish killing machine of the present invention, the fish body descaling mechanism is used to scrape off the fish scales on the fish body on both sides of the back of the head and both sides of the belly, and in the fish belly and fish back descaling mechanism, the blade teeth on the roller remove the fish scales on the belly and the back of the head of the fish, and the scales on the surface of black fish food materials can be effectively removed through the fish body descaling mechanism and the fish belly and fish back descaling mechanism, and the operation is convenient and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of fish killing devices, in particular to a fish killing machine. Background Art

[0002] When processing fish ingredients, knives are needed to scrape off the fish scales and remove the fish's internal organs and other structures. Most of the time, people use knives to process it manually.

[0003] A Chinese patent application with application number 201810891304.X discloses a vertical fish scale and fish belly all-in-one machine, which uses mechanized equipment to remove scales from the fish body, improves the efficiency of killing fish, saves time and effort, and is suitable for occasions with high demand for killing fish, such as restaurants and fresh food markets.

[0004] For mullet (black fish) fish ingredients, the back and abdomen of the fish are all covered with scales. When using the above-mentioned fish killing equipment, it can only remove the scales on both sides of the fish back and the belly of the fish, and is not specially optimized for mullet fish ingredients. As a result, in practical use, the descaling effect of the back and abdomen of the fish head of mullet fish ingredients is poor, and manual rework is required to scrape the scales, which reduces the overall descaling efficiency. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the background technology and provide a fish killing machine to solve the problem of descaling the head, back and abdomen of mullet fish ingredients and improve the overall descaling effect of mullet fish ingredients.

[0006] The present invention is implemented by the following technical scheme: a fish killing machine, comprising a fish body descaling mechanism and a fish belly and back descaling mechanism, wherein the fish belly and back descaling mechanism comprises two sets of rollers arranged oppositely and rotating in opposite directions and a conveying mechanism for conveying fish to between the two sets of rollers;

[0007] The hob is cylindrical, and a plurality of teeth are evenly arranged on the outer circumferential surface of each group of the hob. In the axial direction of the hob, a tooth gap for discharging fish scales is provided between any two adjacent groups of teeth.

[0008] Furthermore, the fish body descaling mechanism comprises a first side scale scraping shaft and a second side scale scraping shaft which are symmetrically arranged and provided with blades, and a blocking conveying shaft;

[0009] The blocking conveying shaft is arranged above the first side fish scale scraping shaft and the second side fish scale scraping shaft, and the blocking conveying shaft includes a first side blocking conveying shaft and a second side blocking conveying shaft, and the first side blocking conveying shaft and the second side blocking conveying shaft are both provided with a plurality of blocking teeth. When the first side blocking conveying shaft and the second side blocking conveying shaft clamp the fish body, the fish head is located between the first side fish scale scraping shaft and the second side fish scale scraping shaft.

[0010] Furthermore, the first side blocking conveying shaft is connected to the first side scraping fish scale shaft through a crank, and the second side blocking conveying shaft is connected to the second side scraping fish scale shaft through a crank, and an adjusting spring is connected between the two cranks.

[0011] Furthermore, the first side scraper shaft and the second side scraper shaft are respectively provided with a blade group A and a blade group B, and the blade group A and the blade group B both include symmetrically arranged mounting brackets and gears respectively sleeved on the first side scraper shaft and the second side scraper shaft, and a plurality of knife shafts are respectively arranged between the two mounting brackets around the first side scraper shaft and the second side scraper shaft, and the knife shafts are provided with blades meshing with the gears and rotating relative to the knife shafts.

[0012] Furthermore, the blade group includes mounting brackets arranged at both ends of the fourth rotating shaft, a plurality of knife shafts arranged around the fourth rotating shaft are passed through the mounting brackets, a plurality of blades are sleeved on the knife shafts along their axial directions, partitions are provided between adjacent blades and on the outsides of the blades at both ends of the knife shafts, and a stop seat is abutted against the outside of the partitions at both ends of the knife shaft, and the stop seat is passed through the rotating shaft.

[0013] Furthermore, the blade is rotatably connected to the blade shaft, a plurality of gears are provided on the shaft along its axial direction, and the blade is provided with incomplete teeth meshing with the gears.

[0014] Furthermore, the fish body descaling mechanism is arranged above the fish belly and back descaling mechanism, and a material discharge mechanism is arranged above the fish body descaling mechanism.

[0015] Furthermore, the feeding mechanism includes a fish feeding hopper, which includes an openable and closable baffle, and feeding notches are respectively arranged on the sides of the baffles that are in contact with each other. When the baffles are close to each other, the feeding notches on both sides are combined to form a feeding port, and the feeding port is a conical structure with a large top opening and a small bottom opening.

[0016] Furthermore, the two groups of roller cutters are each arranged on a group of first rotating shafts, and the first rotating shafts are rotatably arranged on the housing of the fish killing machine;

[0017] The fish belly and fish back scaling mechanism also includes a driving device for driving the two groups of rollers to rotate in opposite directions.

[0018] Furthermore, each group of roller cutters includes a plurality of toothed cutter discs which are inserted through the first rotating shaft, and the cutter tooth gap is the gap between each two adjacent groups of cutter discs.

[0019] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0020] The invention has reasonable design and simple structure.

[0021] The fish killing machine of the present invention comprises a fish body descaling mechanism and a fish belly and fish back descaling mechanism. The fish body descaling mechanism is used to scrape off the fish scales on both sides of the head and back of the fish body and both sides of the belly of the fish. In the fish belly and fish back descaling mechanism, the fish head back and the fish belly respectively directly contact a group of rollers, and the two groups of rollers rotate in opposite directions. Under the conveyance of the conveying mechanism, the fish approaches the rollers, and the blade teeth on the rollers remove the fish scales on the fish belly and the fish head back. The operation is convenient and quick, and the fish scales on the head back and belly of the black fish can be directly removed. Through the fish body descaling mechanism and the fish belly and fish back descaling mechanism, the scales on the surface of black fish food materials can be effectively removed, and the operation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a three-dimensional diagram of the fish killing machine of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the feeding mechanism of the fish killing machine of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the fish body descaling mechanism of the fish killing machine of the present invention;

[0026] Figure 4 It is a top view of the fish body descaling mechanism of the fish killing machine of the present invention;

[0027] Figure 5 It is a side view of the fish body descaling mechanism of the fish killing machine of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the blade group B of the fish killing machine of the present invention;

[0029] Figure 7 It is a top view of the blocking conveying shaft structure of the fish killing machine of the present invention;

[0030] Figure 8 It is a schematic structural diagram of a blade assembly of a fish killing machine of the present invention;

[0031] Fig. 9 A top view of a blade assembly of a fish killing machine of the present invention;

[0032] Fig.10 A side view of a blade assembly of a fish killing machine of the present invention;

[0033] Fig.11It is a schematic diagram of the internal structure of the blade assembly of the fish killing machine of the present invention;

[0034] Fig.12 It is a schematic structural diagram of the fish belly and fish back descaling mechanism of the fish killing machine of the present invention;

[0035] Fig.13 for Fig.12 Enlarged view of part A.

[0036] Icons: 1-fish killing machine, 10-driving device, 11-transmission mechanism, 2-fish belly and back descaling mechanism, 20-first rotating shaft, 200-rolling knife, 2000-knife disc, 2001-tooth gap, 21-second rotating shaft, 210-pressing wheel, 2100-conical surface, 2101-belly cutting blade, 23-first pulley mechanism, 230-gear pair, 24-third rotating shaft, 25-second pulley mechanism, 250-conveyor belt, 251-needling, 26-locking shaft, 260-second spring, 3-fish body descaling mechanism, 30-blocking conveyor shaft, 300-blade group, 300a-blade group A, 300b- Blade group B, 301-mounting bracket, 302-fourth rotating shaft, 302a-first side fish scale scraping shaft, 302b-second side fish scale scraping shaft, 303-knife shaft, 304-blade, 304a-scraping teeth, 305-partition, 306-blocking seat, 307-gear, 308-incomplete teeth, 309-clamping part, 31-first side blocking conveying shaft, 311-first blocking tooth, 32-second side blocking conveying shaft, 321-second blocking tooth, 33-adjusting spring, 331-crank, 4-unloading mechanism, 40-baffle, 41-fixed plate, 42-feeding port, 43-connecting shaft, 44-spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] like Figures 1 to 13 As shown, the present invention provides a fish killing machine. In the fish killing machine 1 of the present invention, a feeding mechanism 4, a fish body descaling mechanism 3, a fish belly and fish back descaling mechanism 2 and a fish outlet are arranged in sequence from top to bottom. After passing through the feeding mechanism 4, the fish enters the fish body descaling mechanism 3 and the fish belly and fish back descaling mechanism 2 in sequence, and finally slides out along the fish outlet.

[0039] The following text describes the blanking mechanism 4:

[0040] like Figure 1 and Figure 2 As shown, the unloading mechanism 4 includes a baffle 40, a fixed plate 41, and connecting shafts 43 and 44. Two relatively arranged fixed plates 41 are welded on the top plate of the fish killing machine, and two parallel connecting shafts 43 are welded between the two fixed plates 41. Two baffles 40 that can approach or move away from each other are slidably mounted on the connecting shaft 43. The spring 44 is mounted on the connecting shaft 43 between the fixed plate 41 and the baffle 40 on the same side, and the two ends of the spring 44 are respectively abutted against the fixed plate 41 and the baffle 40. V-shaped openings are provided on the adjacent sides of the two baffles 40. When the two baffles 40 are close to each other, the V-shaped openings on both sides are combined to form a feed port 42, and the feed port 42 is a conical structure with a large top opening and a small bottom opening.

[0041] The feeding mechanism 4 of the fish killing machine 1 of the present invention has the following advantages:

[0042] 1. Compared with the feed port with an arc-shaped inner wall, the feed port composed of a V-shaped mouth can well clamp cylindrical fish bodies (such as mullet and grass carp), but it is easy to slip when clamping flat fish bodies (such as carp and silver carp), while the feed port composed of a V-shaped mouth can well meet the clamping requirements of the two types of fish bodies. When the cylindrical fish body is inserted into the feed port 42, the four inner panels of the feed port 42 are tangent to the fish body to form a hugging clamping. When the flat fish body is inserted into the feed port 42, the V-shaped tip and the inner panels of the feed port 42 clamp and limit the flat fish body to avoid sliding during clamping. Therefore, the feed port of the present invention can not only clamp the cylindrical fish body, but also the flat fish body, and the clamping is stable, and the practicality is significantly improved.

[0043] Since the size of the fish body gradually decreases from the trunk to the tail, when the fish body is pulled down by the gears, if a feed port with the same inner diameter is used, the fish tail may swing during the feeding process and hit the feed port, generating noise and equipment vibration. For this reason, the feed port adopts a conical structure with a large top opening and a small bottom opening, and at the same time cooperates with an elastically retractable baffle, so that the fish body is always clamped by the feed port during the feeding process, thus avoiding the generation of noise and equipment vibration.

[0044] The fishes passing through the feeding mechanism 4 enter the fish body descaling mechanism 3 .

[0045] The following text describes the fish body descaling mechanism 3:

[0046] like Figure 1 and Figures 3 to 11As shown, the fish body descaling mechanism 3 includes two groups of fourth rotating shafts 302 and two groups of blocking conveying shafts 30, and the fourth rotating shaft 302 includes a first side fish scale scraping shaft 302a and a second side fish scale scraping shaft 302b that are symmetrically arranged; by arranging the blocking conveying shaft 30 above the first side fish scale scraping shaft 302a and the second side fish scale scraping shaft 302b, the fish first contacts the blocking conveying shaft 30, and then contacts the blade group 300 on the first side fish scale scraping shaft 302a and the second side fish scale scraping shaft 302b, giving the fish a relatively fixed place in advance, so that the fish head can be effectively descaled, and then the fish body can be descaled.

[0047] The blade set 300 includes a blade set A300a arranged on the first side scraping fish scale shaft 302a and a blade set B300b arranged on the second side scraping fish scale shaft 302b, and the blade set A300a and the blade set B300b both include symmetrically arranged mounting brackets 301 and gears 307 respectively sleeved on the first side scraping fish scale shaft 302a and the second side scraping fish scale shaft 302b, and the two mounting brackets 301 respectively surround the first side scraping fish scale shaft 302a and the second side scraping fish scale shaft 302b is provided with several knife shafts 303, and the knife shaft 303 is provided with a blade 304 which is meshed with the gear 307 and rotates relative to the knife shaft 303, wherein the knife shaft 303 is detachably connected to the mounting bracket 301 to facilitate the replacement of the blade 304. In addition, in this embodiment, the number of knife shafts 303 is 4, and the blades 304 mounted on the 4 knife shafts 303 are rotationally symmetrical about the fourth rotating axis 302, so that they will not interfere with each other during rotational motion, and can more effectively descale the fish head or fish body.

[0048] The blade 304 includes an outer circle provided with an incomplete tooth 308 meshing with a gear 307, and the incomplete tooth 308 is connected to a scraping tooth 304a through an arc-shaped connecting portion. During the process of scraping fish scales, the blade group A300a and the blade group B300b rotate under the drive of the first side scraping fish scale shaft 302a and the second side scraping fish scale shaft 302b. At this time, each blade 304 can be opened naturally under the action of centrifugal force due to its own sufficient deadweight. When the fish enters between the blade group A300a and the blade group B300b, the scraping fish scale blade is reduced in size on the arc of rotation to make room for the fish to pass. When the blade driven by a traditional elastic member such as a spring contacts the fish, its arc of rotation is basically fixed and cannot be adjusted according to the size of the fish. Therefore, it often occurs that the scales of small fish are not cleanly scraped, and the fish meat of large fish is damaged. Compared with the blade driven by elastic parts such as springs, the fish scale scraping blade can be closely attached to the fish under the action of the centrifugal force principle, so as to achieve the function of scraping fish scales without damaging the fish meat. At the same time, the blade driven by elastic parts such as springs is more complicated in installation and debugging, and because it is in a rigid state for a long time, its damage is more serious. However, the fish scale scraping blade involved in this embodiment can solve this problem very well. It should be noted that the setting of the first side fish scale scraping shaft 302a and the second side fish scale scraping shaft 302b is not a sole limitation. Similarly, under the premise of meeting the requirement of facilitating the removal of fish scales from the fish head, a tool assembly with a spring can also be used to achieve this.

[0049] The blocking conveying shaft 30 is arranged above the first side fish scale scraping shaft 302a and the second side fish scale scraping shaft 302b. The blocking conveying shaft 30 includes a first side blocking conveying shaft 31 and a second side blocking conveying shaft 32, and the first side blocking conveying shaft 31 and the second side blocking conveying shaft 32 are both provided with a plurality of blocking teeth, which "bite" the fish body through the blocking teeth to provide a relatively fixed connection point, thereby ensuring that the fish head below can be better descaled.

[0050] In some embodiments, the first side blocking conveying shaft 31 is connected to the first side scraping fish scale shaft 302a through a crank 331, and the second side blocking conveying shaft 32 is connected to the second side scraping fish scale shaft 302b through a crank 331. An adjusting spring 33 is connected between the two cranks 331. The adjusting spring 33 is used to ensure the distance between the first side blocking conveying shaft 31 and the second side blocking conveying shaft 32 so that the fish can be effectively clamped.

[0051] Among them, the first side blocking conveying shaft 31 is provided with a plurality of first blocking teeth 311, and the second side blocking conveying shaft 32 is provided with a plurality of second blocking teeth 321. The root diameters of the plurality of first blocking teeth 311 are not all the same, and the root diameters of the plurality of second blocking teeth 321 are not all the same. It should be noted that the root diameters are not all the same to meet the side curves of different fishes, so that the fish body can be better "bite" without damaging the fish body. In this embodiment, since the blocking conveying shaft 30 and the first and second side scraping fish scale shafts 302b are connected by a crank 331, in this embodiment, the first side scraping fish scale shaft 302a, the second side scraping fish scale shaft 302b and the blocking conveying shaft 30 are jointly driven by the transmission mechanism 11, and the transmission mechanism 11 includes but is not limited to gear transmission, chain transmission and belt transmission; in this embodiment, a pulley drive is adopted to connect with the driving device 10 (such as a motor).

[0052] In the above transmission method, the transmission ratio of the blocking conveying shaft 30 and the first and second side scraping fish scale shafts 302b should be determined according to actual requirements. However, in theory, no matter what the actual requirements are, the rotation speed of the blocking conveying shaft 30 should be lower than the rotation speed of the first and second side scraping fish scale shafts 302b so as to better descale the fish head or fish scales.

[0053] like Figure 1 As shown, in some embodiments, the fish killing machine 1 is further provided with a housing, a first side scraping fish scale shaft 302a, a second side scraping fish scale shaft 302b, and a blocking conveying shaft 30 are arranged in the housing, the first side blocking conveying shaft 31 is connected to the housing through a spring telescopic rod, the second side blocking conveying shaft 32 is connected to the housing through a spring telescopic rod, and the first side blocking conveying shaft 31 and the second side blocking conveying shaft 32 are both hinged to one end of the spring telescopic rod. The first side blocking conveying shaft 31 and the second side blocking conveying shaft 32 are fixed by arranging them on the housing, and the fish body is clamped by utilizing the spring telescopic rod. Of course, the specific structure of the present embodiment is not limited, as long as the requirements of the present application are met. In addition, some connection methods not mentioned are all available using the conventional knowledge of those skilled in the art.

[0054] like Figures 8 to 11 As shown, the blade set 300 includes mounting brackets 301 disposed at both ends of a fourth rotating shaft 302, a plurality of blade shafts 303 disposed around the fourth rotating shaft 302 are passed through the mounting brackets 301, a plurality of blades 304 are sleeved on the blade shaft 303 along its axial direction, and partitions 305 are disposed between adjacent blades 304 and on the outer sides of the blades 304 at both ends of the blade shaft 303. Compared with the patent with the authorization announcement number "CN209017779U", the blade 304 provided in this embodiment eliminates the weight-reducing groove, improves the overall strength, is not easy to break during use, and improves the service life.

[0055] In this embodiment, the partition plate 305 is provided with a clamping portion 309 which is clamped with the blade shaft 303. The clamping portion 309 can be as follows: Fig.10 The U-shaped groove shown has an opening that passes through the outer edge of the partition 305 .

[0056] In other embodiments of the present invention, the clamping portion 309 may also be a round hole that matches the blade shaft 303. It is worth noting that the arrangement of the clamping portion 309 can prevent the partition plate 305 and the blade shaft 303 from rotating relative to each other, thereby reducing the wear on the side of the blade 304.

[0057] In this embodiment, the blades 304 on adjacent blade shafts 303 are installed in a staggered manner. This arrangement allows sufficient clearance between adjacent blades 304 on the same blade shaft 303, which can effectively prevent fish scales from getting stuck between adjacent blades 304 and facilitate smooth discharge of fish scales.

[0058] In this embodiment, the blade 304 is rotatably connected to the blade shaft 303, and a plurality of gears 307 are provided on the fourth rotating shaft 302 along its axial direction. The blade 304 is provided with incomplete teeth 308 meshing with the gears 307. Such a configuration facilitates the adjustment of the rotation arc of the blade 304 according to the size of the fish, thereby avoiding the situation in which the scales of small fish are not scraped cleanly and the meat of large fish is damaged (for the specific principle, please refer to paragraph

[0022] of the specification of the patent with the authorization announcement number "CN209017779U").

[0059] In this embodiment, the baffles 305 at both ends of the knife shaft 303 are abutted against a stop seat 306, and the stop seat 306 is passed through the fourth rotating shaft 302. Specifically, the stop seat 306 and the fourth rotating shaft 302 are connected by a connecting key to ensure that the stop seat 306 and the fourth rotating shaft 302 rotate synchronously. The mounting bracket 301 can be mounted on the stop seat 306 and fixed to the stop seat 306 by screws.

[0060] The fish after being descaled by the fish body descaling mechanism 3 falls into the fish belly and fish back descaling mechanism 2.

[0061] The following text describes the fish belly and back descaling mechanism 2:

[0062] The present embodiment mainly improves the fish belly and fish back descaling mechanism 2 to meet the needs of descaling the fish belly and fish back of mullet and other fish.

[0063] The fish belly and back scaling mechanism 2 comprises two groups of roller cutters 200 which are arranged opposite to each other and rotate in opposite directions, and a conveying mechanism for conveying the fish between the two groups of roller cutters 200. The roller cutters 200 are cylindrical, and a plurality of teeth are evenly arranged on the outer circumferential surface of each group of roller cutters 200. In the axial direction of the roller cutters 200, a tooth gap 2001 for discharging fish scales is provided between any two adjacent groups of teeth. When scraping the scales, the fish scales and fish blood can be discharged along the tooth gap 2001.

[0064] The two groups of roller cutters 200 are respectively arranged on a group of first rotating shafts 20, and the two groups of first rotating shafts 20 are both rotatably arranged in the fish killing machine 1; the fish belly and back descaling mechanism 2 also includes a driving device 10 for driving the two groups of roller cutters 200 to rotate in opposite directions.

[0065] In some preferred embodiments, the cutter wheels 200 may be of modular type, that is, each group of cutter wheels 200 includes a plurality of toothed cutter discs 2000 inserted on the first rotating shaft 20, the tooth gap 2001 is the gap between each two adjacent groups of cutter discs 2000, each group of cutter discs 2000 is key-connected to the first rotating shaft 20, and a limiting mechanism is provided on the first rotating shaft 20 at both ends of the cutter wheels 200 to lock the plurality of cutter discs 2000 therebetween.

[0066] In some preferred embodiments, the two groups of first rotating shafts 20 are connected via a group of gear pairs 230, and any group of the first rotating shafts 20 is connected to the driving device 10 via a first pulley mechanism 23, and the driving device 10 is a motor.

[0067] The conveying mechanism includes two sets of second pulley mechanisms 25 for clamping the sides and back of the fish. The two sets of second pulley mechanisms 25 are arranged between the two sets of first rotating shafts 20. The two sets of second pulley mechanisms 25 are arranged opposite to each other and rotate in opposite directions to convey the fish to the belly and back of the fish and the scale removal mechanism 2 below.

[0068] The two groups of second pulley mechanisms 25 each include a frame, a driving wheel rotatably arranged at the first end of the frame, and a driven wheel rotatably arranged at the second end of the frame, the driving wheel and the driven wheel are connected by a conveyor belt 250, and the two groups of driving wheels are each key-connected to a group of third rotating shafts 24, so that the second ends of the two groups of frames can be relatively opened / closed; the third rotating shaft 24 is rotatably connected to the fish killing machine 1, and the two groups of third rotating shafts 24 are connected by a group of gear pairs 230, and the driving device 10 is connected to any group of the third rotating shafts 24 pulleys. A group of locking shafts 26 are respectively provided on the frames of the two groups of conveyor belts 25, and the two ends of the two groups of locking shafts 26 are respectively connected by a group of second springs 260, so that the opening and closing degree of the second ends of the two groups of frames of the conveying mechanism can be flexibly adjusted according to the thickness of the fish body.

[0069] The two groups of third rotating shafts 24 rotate, and the conveyor belt 250 clamps the fish and conveys it between the two groups of roller cutters 200 below. The rotation direction of the blades of the roller cutters 200 contacting both sides of the fish body is upward, which is opposite to the movement direction of the fish, so as to achieve descaling.

[0070] In some preferred embodiments, the conveyor belt 250 is provided with a plurality of needles 251, which are pierced on the surface of the fish body, so that the fish is more easily driven downward by the conveyor belt 250. Two groups of second rotating shafts 21 are provided below the fish belly and back descaling mechanism 2, and each group of second rotating shafts is provided with a group of pressing wheels 210. The two groups of pressing wheels 210 are arranged opposite to each other, and each group of pressing wheels 210 is symmetrically provided with two groups of conical surfaces 2100 along the length direction of the second rotating shaft 21, so that the pressing wheels 210 gradually become thicker from the middle to both ends. When the fish falls between the two groups of pressing wheels 210, the conical surfaces 2100 on both sides play a guiding role in the movement of the fish. A belly cutting blade 2101 is provided in the middle of the pressure wheel 210 facing the fish belly. The belly cutting blade 2101 rotates to cut the fish belly after descaling, and the cut fish slides out from the fish outlet at the lower end of the fish killing machine 1.

[0071] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fish killing machine, comprising a fish body descaling mechanism and a fish belly and back descaling mechanism, characterized in that: The fish belly and back scale removal mechanism comprises two sets of rollers arranged opposite to each other and rotating in opposite directions, and a conveying mechanism for conveying the fish between the two sets of rollers; The hob is cylindrical, and a plurality of teeth are evenly arranged on the outer circumference of each set of hobs, and in the axial direction of the hob, a tooth gap for discharging fish scales is provided between any two adjacent sets of teeth; The two groups of rollers are respectively arranged on a group of first rotating shafts, and the first rotating shafts are rotatably arranged on the fish killing machine housing; the fish belly and fish back descaling mechanism also includes a driving device for driving the two groups of rollers to rotate in opposite directions; Each set of roller cutters includes a plurality of toothed cutter discs which are inserted through the first rotating shaft, and the tooth gap is the gap between each two adjacent sets of cutter discs; The fish body descaling mechanism is arranged above the fish belly and fish back descaling mechanism, and a material discharge mechanism is arranged above the fish body descaling mechanism.

2. The fish killing machine according to claim 1, characterized in that: The fish body descaling mechanism comprises a first side scale scraping shaft and a second side scale scraping shaft which are symmetrically arranged and provided with blades, and a blocking conveying shaft; The blocking conveying shaft is arranged above the first side fish scale scraping shaft and the second side fish scale scraping shaft, and the blocking conveying shaft includes a first side blocking conveying shaft and a second side blocking conveying shaft, and the first side blocking conveying shaft and the second side blocking conveying shaft are both provided with a plurality of blocking teeth. When the first side blocking conveying shaft and the second side blocking conveying shaft clamp the fish body, the fish head is located between the first side fish scale scraping shaft and the second side fish scale scraping shaft.

3. The fish killing machine according to claim 2, characterized in that: The first side blocking conveying shaft is connected to the first side scraping fish scale shaft through a crank, and the second side blocking conveying shaft is connected to the second side scraping fish scale shaft through a crank, and an adjusting spring is connected between the two cranks.

4. The fish killing machine according to claim 3, characterized in that: The first side scraper shaft and the second side scraper shaft are respectively provided with a blade group A and a blade group B, and the blade group A and the blade group B both include symmetrically arranged mounting brackets and gears respectively sleeved on the first side scraper shaft and the second side scraper shaft, and a plurality of knife shafts are respectively arranged between the two mounting brackets around the first side scraper shaft and the second side scraper shaft, and the knife shafts are provided with blades meshing with the gears and rotating relative to the knife shafts.

5. The fish killing machine according to claim 4, characterized in that: The blade group includes mounting brackets arranged at both ends of the fourth rotating shaft, a plurality of knife shafts arranged around the fourth rotating shaft are passed through the mounting brackets, a plurality of blades are sleeved on the knife shafts along their axial directions, partitions are arranged between adjacent blades and on the outsides of the blades at both ends of the knife shafts, and a stop seat is abutted against the outside of the partitions at both ends of the knife shaft, and the stop seat is passed through the rotating shaft.

6. The fish killing machine according to claim 5, characterized in that: The blade is rotatably connected to the blade shaft, a plurality of gears are arranged on the shaft along its axial direction, and the blade is provided with incomplete teeth meshing with the gears.

7. The fish killing machine according to claim 1, characterized in that: The feeding mechanism includes a fish feeding hopper, which includes an openable and closable baffle, and feeding notches are respectively arranged on the sides of the baffles that are in contact with each other. When the baffles are close to each other, the feeding notches on both sides are combined to form a feeding port, and the feeding port is a conical structure with a large top opening and a small bottom opening.

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