Fish head removing machine

Abstract

A fish head removing machine comprises a machine frame, a fish body head removing platform mechanism is installed on one side of the machine frame and used for supporting and limiting fish bodies, a driving mechanism is installed at the top of the machine frame, a cutter fixing seat is installed at the bottom of the driving mechanism, and a cutter is installed on the cutter fixing seat. A head removing cutter matched with the fish body head removing platform mechanism is mounted at the bottom of the cutter fixing seat; when the fish head removing machine works, the curved-surface arc-shaped cutting edge knife cuts off a fish head along a gill cover, waste of fish meat can be avoided to the greatest extent, the fish head removing machine is suitable for fishes with large gill covers of fish bodies, when the fish head removing machine works, the straight V-shaped cutting edge knife is a straight line and is suitable for fishes with small gill covers of fish bodies, head removing processing of freshwater fish bodies is achieved, and the fish head removing efficiency is improved. The fish head removing device is simple in structure, convenient to operate, safe, time-saving, labor-saving and high in processing efficiency, fish meat can be reserved on a fish body as far as possible, and various fish bones on the fish head part are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aquatic product primary processing machinery, in particular to a fish head-removing machine. Background Art

[0002] China is the world's largest fishery producer, with total fishery output accounting for nearly 40% of the world's total output. The primary processing of fish includes cleaning, grading, killing and bleeding, descaling, degumming, deheading, and cutting. As people's living standards continue to improve, the demand for high-quality fish protein continues to grow. The manual processing model can no longer meet the requirements of large-scale production, and high-quality, efficient, and mechanized fish processing has become an inevitable requirement.

[0003] Heading is a key step in the initial processing of fish, which is beneficial to subsequent processing. Its purpose is to remove the low-value fish head from the high-value fish meat, so that the fish body retains as much fish meat as possible, and at the same time, there are no fish bones left on the fish body slices. The result of fish head removal will directly affect the output of fish pre-processing products and the quality of subsequent deep-processing products.

[0004] At present, the existing freshwater fish head removal process in China is mainly completed by workers manually. Although it can keep as much fish meat as possible on the fish body, it is time-consuming and labor-intensive, and the processing efficiency is low, which cannot meet the needs of large-scale processing and production. After searching, Chinese patent CN201510502817.3 discloses a freshwater fish head removal machine, which is composed of a freshwater fish head removal machine frame component, a fish head removal platform component, a blade fixing part and a head removal blade component, a head removal tool holder component, a head removal tool holder guide rail component, and a cylinder piston component. The freshwater fish head removal machine frame component is composed of a frame and a cylinder control button. The frame is constructed of square steel to form an upper and lower two-layer frame structure, and a cylinder control button is provided on the frame edge of the lower layer of the frame. The fish head removal platform component is composed of a flat plate, a fish body limit plate, and a fish head limit plate. The flat plate is provided with a long hole required for the head removal tool to process the fish head and a long hole for installing the limit plate. The fish body limit plate and the fish head limit plate are fixed on the flat plate. The positions of the fish body limit plate and the fish head limit plate can be adjusted by installing the long hole of the limit plate. The blade fixing part and the head removal blade component are composed of a fish body blade fixing part and a head removal blade. The fish body head removal blade is a straight arc-shaped blade. The fish body head removal blade is fixed under the blade fixing part by bolts. The head removal tool holder component is composed of a tool holder connector, a piston connector, and a pin. The tool holder connector is an I-shaped structure with guide holes at the four corners of the tool holder connector. The piston connector is fixed to the middle position of the tool holder connector by bolts, and the pin is installed in the through hole of the piston connector. The head removal tool holder guide rail component is composed of a light rod and a light rod support. The two ends of the light rod are fixed to the light rod support by nuts. The cylinder-piston component is composed of a cylinder, a support plate and a piston rod, and the cylinder and the piston are fixed on the support plate.

[0005] The substantive deficiencies of the above patent are as follows: since the machine requires the fish body to be manually placed on the fish head removal platform, positioned by the limit plate, and then the cylinder control button is pressed to drive the tool to move for cutting, the operation is relatively time-consuming, and the blade is a straight arc-shaped blade knife. The head removal equipment adopts traditional straight-line cutting. When removing the head, the cutting tool cuts vertically along the position of the gill cover arc. A large piece of fish meat will remain next to the gill cover. This part of the fish meat cannot be effectively utilized and can only be treated as a by-product, resulting in a serious waste of resources. In addition, the equipment lacks safety devices, is not safe enough, and has potential safety hazards. During the production process, the entire loading work is done by hand, which can easily cause accidental injuries, thereby causing serious safety accidents. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a fish head removal machine, which effectively solves the problem of traditional straight-line cutting. When removing the head, the cutting tool cuts vertically along the position of the gill cover arc, and a large piece of fish meat will remain next to the gill cover. This part of the fish meat cannot be effectively utilized and can only be treated as a by-product, resulting in a serious waste of resources. In addition, the equipment lacks safety devices, is not safe enough, and has potential safety hazards. During the production process, the loading work is carried out by hand throughout the process, which is easy to cause accidental injuries, thereby causing serious safety accidents.

[0007] The technical solution is a fish de-heading machine, comprising a frame;

[0008] A fish head removal platform mechanism is installed on one side of the frame, and the fish head removal platform mechanism is used to support and limit the fish body;

[0009] A driving mechanism is installed on the top of the frame, a cutter fixing seat is installed on the bottom of the driving mechanism, and a head-removing knife member matched with the fish head-removing platform mechanism is installed on the bottom of the cutter fixing seat.

[0010] A protection mechanism is installed on one side of the driving mechanism, and the protection mechanism is used for protection to improve the safety of the equipment;

[0011] The protection mechanism comprises a safety fence movably mounted on one side of the driving mechanism, an anti-swing rebound component abutting against the safety fence is mounted on the top of the driving mechanism, and a safety valve matched with the safety fence is mounted on the top of the driving mechanism;

[0012] A foot switch mechanism matched with the safety valve is installed at the bottom of the frame.

[0013] Preferably, the head removal blade is a curved arc-shaped blade blade, and the curved arc-shaped blade blade is installed at the bottom of the cutter fixing seat.

[0014] Preferably, the head removal blade is a straight V-shaped blade, and the straight V-shaped blade is installed at the bottom of the cutter fixing seat.

[0015] Preferably, the fish head removal platform mechanism comprises a base installed on the top of the frame, two countersunk holes are formed through the top of the base, and a template is installed in the middle of the top of the base.

[0016] Preferably, the template member is template one, and the template one is installed on the top of the base. A circular arc V-shaped blade slot hole is opened through the top of the template one, and the curved circular arc blade knife is slidably installed in the circular arc V-shaped blade slot hole.

[0017] Preferably, the template member is template 2, which is installed on the top of the base, and a straight blade slot hole is opened through the top of template 2, and the straight V-shaped blade knife is slidably installed in the straight blade slot hole.

[0018] Preferably, a plurality of adjustment holes are provided on both sides of the top of the template one and the template two, and two fish body limiting rods are installed in the plurality of adjustment holes.

[0019] Preferably, the driving mechanism includes a cylinder mounting seat installed on the top of the frame, a cylinder is installed on the top of the cylinder mounting seat, the output end of the cylinder is connected to the top of the cutter fixing seat, guide rods are installed on both sides of the bottom of the cylinder mounting seat, and the two guide rods are slidably installed in two countersunk holes.

[0020] Preferably, the anti-sway rebound assembly includes a positioning seat installed on one side of the cylinder mounting seat, a spring limiting rod is installed on one side of the positioning seat, a return spring is installed on one side of the spring limiting rod, the other side of the return spring is installed on one side of the safety fence, the safety fence is movably installed on both sides of the cylinder mounting seat, and the safety valve is installed on the top of the cylinder mounting seat.

[0021] Preferably, the foot switch mechanism comprises a sheet metal frame installed at the bottom of the frame, a foot switch is installed in the sheet metal frame, and the foot switch, the safety valve and the cylinder are connected in coordination via an air circuit.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. When the fish deheading machine is working, the curved arc-shaped blade knife cuts off the fish head along the gill cover, which can avoid the waste of fish meat to the greatest extent. It is suitable for fish with larger gill covers; when the fish deheading machine is working, the straight V-shaped blade knife is a straight line, which is suitable for fish with smaller gill covers. It can realize the deheading of freshwater fish, which can not only improve the efficiency of fish deheading processing, but also keep the fish meat on the fish body as much as possible, and there is no residue of various fish bones in the fish head part. The device has a simple structure, convenient and safe operation, time-saving and labor-saving, and high processing efficiency.

[0024] 2. During the cutting of fish bodies and fish heads, if any object touches the safety fence and causes it to swing and deviate, the safety valve switch will be triggered, causing the cylinder to be disconnected and the cylinder to stop working immediately to ensure the safety of the equipment; if during the cutting of fish bodies and fish heads, no object touches the safety fence, the return spring will keep the safety fence in a vertical and stable state, the safety valve switch will not be triggered, the cylinder will work normally, and the equipment can operate normally, avoiding safety hazards in the production process, causing accidental injuries and serious safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic structural diagram of a fish deheading machine from a first perspective.

[0026] Figure 2 It is a structural schematic diagram of the frame of the utility model.

[0027] Figure 3 It is a structural schematic diagram of a fish head removal platform mechanism of the utility model.

[0028] Figure 4 It is a structural schematic diagram of a curved arc-shaped cutting edge knife and a straight V-shaped cutting edge knife of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the driving mechanism of the utility model.

[0030] Figure 6 It is a structural schematic diagram of the protective mechanism of the utility model.

[0031] Figure 7 It is a structural schematic diagram of the foot switch mechanism of the utility model.

[0032] Explanation of the symbols in the schematic diagram:

[0033] Frame; 11. Input platform; 12. Output platform; 2. Fish head removal platform mechanism; 21. Base; 22. Countersunk hole; 3. Driving mechanism; 31. Cylinder mounting seat; 32. Cylinder; 33. Guide rod; 4. Cutter fixing seat; 5. Curved arc-shaped blade knife; 51. Straight V-shaped blade knife; 6. Protection mechanism; 61. Safety fence; 62. Safety valve; 7. Positioning seat; 71. Spring limit rod; 72. Return spring; 8. Template one; 81. Arc V-shaped blade slot; 82. Adjustment hole; 83. Fish body limit rod; 9. Template two; 91. Straight blade slot; 10. Foot switch mechanism; 101. Sheet metal frame; 102. Foot switch. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Depend on Figures 1 to 4 Provided is a fish deheading machine, comprising a frame 1, a fish deheading platform mechanism 2, a driving mechanism 3, a cutter fixing seat 4, a deheading blade, a protective mechanism 6, and a foot switch mechanism 10.

[0036] The frame 1 serves as a supporting platform, the fish head removal platform mechanism 2 is installed on the top of the frame 1, the driving mechanism 3 is installed on the top of the frame 1, and the driving mechanism 3 is located above the fish head removal platform mechanism 2, the cutter fixing seat 4 is installed at the bottom of the driving mechanism 3, and the head removal blade is installed at the bottom of the cutter fixing seat 4. The fish body is placed on the fish head removal platform mechanism 2, and the driving mechanism 3 drives the head removal blade to descend to cut off the fish head part.

[0037] The protective mechanism 6 is installed on one side of the driving mechanism 3. The protective mechanism 6 is located on one side of the deheading blade to protect the deheading blade to prevent the deheading blade from cutting the staff and causing safety accidents; the foot switch mechanism 10 is installed at the bottom of the frame 1, and the foot switch mechanism 10 controls the start and stop of the driving mechanism 3 and the protective mechanism 6.

[0038] Depend on Figure 1 to Figure 2 As shown, the frame 1 is constructed of angle steel to form a frame structure, which is covered with sheet metal parts. An input port platform 11 is installed on the left side of the frame 1 with bolts. During the working process, the fish bodies that need to be headed are piled on the input port platform 11, and the workers take the materials from the input port platform 11 and place them on the fish body head removal platform mechanism 2; an output port platform 12 is installed on the right side of the frame 1 with bolts. After the fish head is cut, the workers place the fish bodies on the output port platform 12 to complete the unloading.

[0039] Depend on Figure 3 It is shown that the fish head removal platform mechanism 2 includes a base 21, two countersunk holes 22 and a template member.

[0040] The base 21 is installed on the top of the frame 1, and two countersunk holes 22 are respectively opened on both sides of the top of the base 21. The template part is installed in the middle of the top of the base 21. The template part serves as a cutting board for cutting fish bodies, and the template part cooperates with the head removal knife part.

[0041] Depend on Figure 3 to Figure 4 It is given that the template part is a template 8, which is installed in the middle of the top of the base 21, and a circular arc V-shaped blade groove 81 is opened through the top of the template 8, and the circular arc V-shaped blade groove 81 is in a circular arc shape; the head removal blade is a curved arc-shaped blade knife 5, and the curved arc-shaped blade knife 5 is curved and the blade is in a circular arc shape. The curved arc-shaped blade knife 5 is installed at the bottom of the cutter fixing seat 4, and the curved arc-shaped blade knife 5 is slidably installed in the circular arc V-shaped blade groove 81, and the circular arc V-shaped blade groove 81 matches the curved arc-shaped blade knife 5.

[0042] The template 1 8 and the curved arc-shaped blade knife 5 are the same combination. When working, the curved arc-shaped blade knife 5 cuts off the fish head along the gill cover, which can avoid the waste of fish meat to the greatest extent and is suitable for fish with larger gill covers.

[0043] In another processing method, the template part is template 2 9, which is installed in the middle of the top of the base 21. A straight blade slot 91 is opened through the top of the template 2 9, and the straight blade slot 91 is inclined and straight; the head removal knife is a straight V-shaped blade knife 51, which is inclined vertically and has a V-shaped blade. The straight V-shaped blade knife 51 is installed at the bottom of the cutting knife fixing seat 4, and the straight V-shaped blade knife 51 is slidably installed in the straight blade slot 91. The fish body is placed on the surface of template 2 9, and the straight V-shaped blade knife 51 descends to cut off the fish head, and the straight V-shaped blade knife 51 is inserted into the straight blade slot 91.

[0044] Template 2 9 and the straight V-shaped blade knife 51 are the same combination. When working, the straight V-shaped blade knife 51 is a straight line, which is suitable for fish with smaller gill covers.

[0045] Specifically, during the working process, only one of the groups of the curved arc-shaped cutting edge knife 5 and the template 1 8 or the straight V-shaped cutting edge knife 51 and the template 2 9 can be selected.

[0046] Both sides of the top of template 1 8 and template 2 9 are provided with multiple adjustment holes 82, and two fish body limiting rods 83 are installed in the multiple adjustment holes 82. The two fish body limiting rods 83 can be inserted into the adjustment holes 82 at will, and the fish body is limited by the distance between the two fish body limiting rods 83. Before cutting the fish head, the fish body needs to be placed between the two fish body limiting rods 83 so that the position of the fish body will not be shifted during cutting, and it also ensures that the fish body is placed in the middle of the chopping board.

[0047] Depend on Figures 5 and 6 It is shown that the driving mechanism includes a cylinder mounting seat 31 , a cylinder 32 and two guide rods 33 .

[0048] The cylinder mounting seat 31 is installed on the top of the frame 1, and the cylinder 32 is installed on the top of the cylinder mounting seat 31. The output end of the cylinder 32 runs through the cylinder mounting seat 31, and the output end of the cylinder 32 is connected to the top of the cutter fixing seat 4. The cylinder 32 drives the cutter fixing seat 4 to descend and rise, and the cutter fixing seat 4 descends with the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51 to cut the fish head on the chopping board.

[0049] Two guide rails 33 are installed on both sides of the bottom of the cylinder mounting seat 31. The two guide rails 33 are slidably installed in the two countersunk holes 22 respectively. The two guide rails 33 are limited in the two countersunk holes 22 to ensure that the cylinder 32 can be lifted and lowered vertically.

[0050] Depend on Figures 5 and 6 It is shown that the protection mechanism 6 includes a safety fence 61 , an anti-swing rebound component, and a safety valve 62 .

[0051] Hollow steel pipes are installed on both sides of the safety fence 61, and a connecting rotating rod is slidably installed inside the hollow steel pipe. A locking bolt is threadedly installed on one side of the hollow steel pipe, and one side of the locking bolt abuts against the outer wall of the rotating rod. The safety fence 61 can slide up and down along the rotating rod through the hollow steel pipe and be positioned by the locking bolt to achieve up and down adjustment.

[0052] The two rotating rods are rotatably installed on both sides of the cylinder mounting seat 31 through pins, and the bottom of the safety fence 61 is close to the top of the base 21, and the safety fence 61 can rotate around the pins; the safety fence 61 is located on the side where the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51 is placed in the fish body, and the safety fence 61 protects the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51 to prevent the staff from contacting the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51.

[0053] The anti-sway rebound component includes a positioning seat 7 , a spring limiting rod 71 , and a return spring 72 .

[0054] The positioning seat 7 is installed on one side of the cylinder mounting seat 31, the spring limiting rod 71 is installed on one side of the positioning seat 7, the return spring 72 is installed on one side of the spring limiting rod 71, and the other side of the return spring 72 is installed on one side of the rotating rod. The return spring 72 keeps the safety fence 61 in a vertical and stable state. After the safety fence 61 rotates, the return spring 72 pulls the safety fence 61 to return to its original position.

[0055] The safety valve 62 is installed on the top of the cylinder mounting seat 31, and the switch end of the safety valve 62 is against one side of the top of the rotating rod. When cutting the fish body and fish head, if any object touches the safety fence 61 and causes it to swing and deviate, the safety valve 62 switch will be triggered, causing the cylinder 32 to be disconnected and the cylinder 32 to stop working immediately, thereby ensuring the safety of the equipment.

[0056] Depend on Figure 1 and Figure 7 As shown, the foot switch mechanism 10 includes a sheet metal frame 101 and a foot switch 102 .

[0057] The sheet metal frame 101 is installed at one of the four corners at the bottom of the frame 1, and the foot switch 102 is installed in the sheet metal frame 101. The foot switch 102, the safety valve 62 and the cylinder 32 are connected through the air circuit. The staff uses their feet to activate the foot switch 102, and the foot switch 102 controls the cylinder 32 to start.

[0058] The beneficial effects obtained by the frame 1, the fish head removal platform mechanism 2, the driving mechanism 3, the cutter fixing seat 4, the head removal knife, the protection mechanism 6, and the foot switch mechanism 10 are as follows: when working, the curved arc-shaped blade knife 5 cuts off the fish head along the gill cover, which can avoid the waste of fish meat to the greatest extent, and is suitable for fish with larger gill covers; when the fish head removal machine is working, the straight V-shaped blade knife 51 is a straight line, which is suitable for fish with smaller gill covers, and the head removal process of freshwater fish can be realized, which can not only improve the efficiency of fish head removal process, but also keep the fish meat on the fish body as much as possible, and there is no residue of various fish bones in the fish head part. The device has a simple structure, is easy and safe to operate, saves time and effort, and has high processing efficiency.

[0059] During the work of cutting the fish body and the fish head, if any object touches the safety fence 61 and causes it to swing and deviate, the safety valve 62 switch will be triggered, the cylinder 32 will be disconnected, and the cylinder 32 will stop working immediately to ensure the safety of the equipment; if during the work of cutting the fish body and the fish head, no object touches the safety fence 61, the return spring 72 keeps the safety fence 61 in a vertical and stable state, the safety valve 62 switch will not be triggered, the cylinder 32 will work normally, the equipment can operate normally, and safety hazards in the production process are avoided, causing accidental injuries and serious safety accidents.

[0060] When the utility model is used, the fish bodies that need to be headed are piled on the input port platform 11 during the working process, and the workers take the materials from the input port platform 11 and place them on the template 1 8 or the template 2 9, and quickly fix the fish bodies in the appropriate positions through the fish body limiting rods 83, and adjust the height of the safety fence 61 so that the fish bodies can just pass through the bottom opening of the safety fence 61, and then step on the foot switch 102 to control the cylinder 32 to work, driving the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51 to move straight downward, and the curved arc-shaped blade knife 5 or the straight V-shaped blade knife 51 cuts the fish head during the downward movement, and after the fish head is cut, the workers place the fish bodies on the output port platform 12 to complete the unloading.

[0061] During the cutting of fish bodies and fish heads, if any object touches the safety fence 61 and causes it to swing and deviate, the safety valve 62 switch will be triggered, causing the cylinder 32 to be disconnected and the cylinder 32 to stop working immediately to ensure the safety of the equipment. If during the cutting of fish bodies and fish heads, no object touches the safety fence 61, the return spring 72 keeps the safety fence 61 in a vertical and stable state, and the safety valve 62 switch will not be triggered, the cylinder 32 will work normally, and the equipment can operate normally.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fish de-heading machine, characterized in that: comprising a frame (1); A fish head removal platform mechanism (2) is installed on one side of the frame (1), and the fish head removal platform mechanism (2) is used to support and limit the position of the fish body; A driving mechanism (3) is installed on the top of the frame (1), a cutter fixing seat (4) is installed on the bottom of the driving mechanism (3), and a head removal knife member matched with the fish head removal platform mechanism (2) is installed on the bottom of the cutter fixing seat (4); A protection mechanism (6) is installed on one side of the driving mechanism (3), and the protection mechanism (6) is used for protection to improve the safety of the equipment; The protection mechanism (6) comprises a safety fence (61) movably mounted on one side of the driving mechanism (3); an anti-swing rebound component abutting against the safety fence (61) is mounted on the top of the driving mechanism (3); and a safety valve (62) cooperating with the safety fence (61) is mounted on the top of the driving mechanism (3); A foot switch mechanism (10) matched with a safety valve (62) is installed at the bottom of the frame (1).

2. A fish de-heading machine according to claim 1, characterized in that: The head removal blade is a curved arc-shaped blade knife (5), and the curved arc-shaped blade knife (5) is installed at the bottom of the cutter fixing seat (4).

3. A fish de-heading machine according to claim 2, characterized in that: The head removal blade is a straight V-shaped blade (51), and the straight V-shaped blade (51) is installed at the bottom of the cutter fixing seat (4).

4. A fish de-heading machine according to claim 3, characterized in that: The fish head removal platform mechanism (2) comprises a base (21) installed on the top of the frame (1), two countersunk holes (22) are formed through the top of the base (21), and a template is installed in the middle of the top of the base (21).

5. A fish de-heading machine according to claim 4, characterized in that: The template part is template one (8), and the template one (8) is installed on the top of the base (21). The top of the template one (8) is penetrated by a circular arc V-shaped blade groove hole (81), and the curved circular arc blade knife (5) is slidably installed in the circular arc V-shaped blade groove hole (81).

6. A fish de-heading machine according to claim 5, characterized in that: The template member is template 2 (9), which is installed on the top of the base (21). A straight blade slot hole (91) is provided through the top of the template 2 (9), and the straight V-shaped blade knife (51) is slidably installed in the straight blade slot hole (91).

7. A fish de-heading machine according to claim 6, characterized in that: A plurality of adjustment holes (82) are provided on both sides of the top of the template 1 (8) and the template 2 (9), and two fish body limiting rods (83) are installed in the plurality of adjustment holes (82).

8. The fish de-heading machine according to claim 4, characterized in that: The driving mechanism (3) comprises a cylinder mounting seat (31) mounted on the top of the frame (1); a cylinder (32) is mounted on the top of the cylinder mounting seat (31); an output end of the cylinder (32) is connected to the top of the cutter fixing seat (4); guide rails (33) are mounted on both sides of the bottom of the cylinder mounting seat (31); and the two guide rails (33) are slidably mounted in the two countersunk holes (22).

9. A fish de-heading machine according to claim 8, characterized in that: The anti-sway rebound assembly comprises a positioning seat (7) installed on one side of the cylinder mounting seat (31), a spring limiting rod (71) is installed on one side of the positioning seat (7), a return spring (72) is installed on one side of the spring limiting rod (71), the other side of the return spring (72) is installed on one side of the safety fence (61), the safety fence (61) is movably installed on both sides of the cylinder mounting seat (31), and the safety valve (62) is installed on the top of the cylinder mounting seat (31).

10. A fish de-heading machine according to claim 9, characterized in that: The foot switch mechanism (10) comprises a sheet metal frame (101) installed at the bottom of a frame (1), a foot switch (102) being installed in the sheet metal frame (101), and the foot switch (102), a safety valve (62) and a cylinder (32) being connected in coordination via an air circuit.

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