Keel cutting forking knife switch
By introducing a sliding cutting mechanism and a rotating forking mechanism into the keel cutting fork guillotine, and utilizing the cooperation between the pressure plate and the sliding plate, the problems of deformation and displacement during keel cutting are solved, achieving more efficient cutting and forking processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-07
AI Technical Summary
The existing keel cutting fork gate lacks a fixing function, which makes the keel easy to deform and shift during the cutting process, affecting the cutting effect and the convenience of operation.
A keel cutting fork gate was designed, comprising a sliding cutting mechanism and a rotating fork mechanism. Through the cooperation of the pressure plate and the sliding plate, the keel is fixed and limited to prevent deformation, and the keel position is kept stable after cutting, which facilitates fork processing.
It effectively prevents the keel from deforming and shifting during the cutting process, improves the cutting effect, simplifies the forking process of the keel, and enhances the ease of use.
Smart Images
Figure CN224088052U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of keel processing equipment, specifically relating to a keel cutting fork gate. Background Technology
[0002] Light steel keel is manufactured through a cold bending forming process. When using it, it needs to be cut to the required length using tools. Commonly used light steel keel cutting tools include scissors and guillotine cutters.
[0003] The existing keel cutting fork guillotine structure includes a base, a handle, a sliding cutting mechanism, and a rotating fork mechanism. The handle, sliding cutting mechanism, and rotating fork mechanism are all fixed to the base, and the sliding cutting mechanism and rotating fork mechanism are connected via the handle. In use, operating the handle drives the sliding cutting mechanism and rotating fork mechanism, thereby achieving the cutting and forking of the keel. This method is convenient to operate and has high processing efficiency.
[0004] However, the existing keel cutting fork guillotine still has shortcomings. The existing guillotine does not have the function of fixing the keel. As a result, the end of the keel is prone to deformation during the cutting process. Also, when lifting the guillotine after cutting, the keel is prone to move up with the blade, which affects the cutting effect and causes inconvenience in use. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a keel cutting fork blade, which can more reliably fix the keel and avoid deformation and displacement of the keel.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a keel cutting fork guillotine includes a base, a sliding cutting mechanism, a rotating fork mechanism, and a handle. The base is provided with a bracket and a blade support. The sliding cutting mechanism includes a slide plate slidably mounted on the bracket and two blades rotatably connected to the left and right sides of the blade support, respectively. The two blades are connected opposite to each other at the lower end of the handle. The two blades are respectively linked to the slide plate via connecting rods. Rotating the blades will cause the slide plate to slide back and forth along the bracket via the connecting rods. The rotating fork mechanism includes a left extension member and a right extension member rotatably connected to the inner side of the bracket, a left transmission plate, a right transmission plate, and a connecting plate located between the two extension members. The left and right extension members are arranged opposite to and parallel to each other. The rear end of the plate is connected to the slide plate, the front end of the connecting plate is rotatably connected to the rear ends of the two transmission plates, the front end of the left transmission plate is rotatably connected to the front end of the left extension piece, and the front end of the right transmission plate is rotatably connected to the front end of the right extension piece. The sliding connecting plate can drive the two extension pieces to rotate to a retracted state parallel to the sliding direction of the connecting plate and a forked state perpendicular to the sliding direction of the connecting plate. In the retracted state, the two extension pieces are located between the two blades. A pressure plate is connected to the slide plate, and a keel baffle is provided on the bracket corresponding to the position below the pressure plate. The keel baffle is located in front of the slide plate. When the two extension pieces are in the retracted state, the front end of the pressure plate extends to the front side of the front face of the keel baffle. When the two extension pieces are in the forked state, the front end of the pressure plate retracts to the rear side of the front face of the keel baffle.
[0007] In the above solution, a pressure plate is connected to the skateboard, so that the pressure plate moves with the skateboard as it slides. In use, the keel is first placed on the outside of the bracket, corresponding to the front of the keel baffle, with the end of the keel abutting against the front face of the keel baffle. The keel baffle prevents the keel from moving further backward. At this time, the two extension pieces are in a retracted state, and the front end of the pressure plate extends to the front side of the front face of the keel baffle, meaning the front end of the pressure plate is directly above the rear end of the keel. Then, the handle is pulled downwards, causing the blade to rotate downwards and cut the keel. Since the skateboard has reached its forward sliding limit, the blade will not further drive the skateboard forward when it continues to rotate downwards to cut, thus keeping the two extension pieces in a retracted state. Essentially, when the blade is cutting downwards, the pressure plate remains directly above the rear end of the keel, preventing the upper part of the keel from being cut. Deformation occurs during the process, resulting in better cutting effect. After the keel is cut, the handle is turned upward to rotate the blade. The upward rotation of the blade drives the sliding plate to move the pressure plate backward via the connecting rod. At the same time, the sliding plate moves the connecting piece backward, which in turn drives the two extension pieces to rotate outward. Before the blade separates from the keel, the pressure plate remains above the rear end of the keel, continuing to limit the movement of the rear end of the keel and preventing the cut keel from moving upward with the blade, thus keeping the keel in its original position. When the handle is turned upward, the two extension pieces rotate to the forked state. At this time, the two extension pieces can complete the forking process of the cut keel. While the keel is forked, the sliding plate also moves the front end of the pressure plate backward to the rear side of the front end face of the keel baffle, so that the front end of the pressure plate is misaligned with the top of the keel. At this time, the keel can be moved upward to be removed.
[0008] Furthermore, the aforementioned pressure plate is provided with a first guide groove, and a guide post is provided on the blade support. The guide post is placed in the first guide groove so that the pressure plate can slide back and forth along the guide post through the first guide groove, making the sliding smoother. The upper end of the aforementioned guide post is provided with a post cap, which is located on the first guide groove, and the diameter of the post cap is larger than the width of the first guide groove. The post cap will prevent the pressure plate from moving upward, thereby improving the installation stability of the pressure plate.
[0009] Furthermore, for ease of operation of the guillotine, the aforementioned sliding cutting mechanism also includes a reset mechanism for resetting the two extension members to their retracted state.
[0010] Furthermore, the aforementioned reset mechanism includes a guide rod and a spring sleeved on the outside of the guide rod. A connecting block is located under the slide plate. The front end of the guide rod is connected to the connecting block, and the rear end of the guide rod is slidably connected to the bracket. The front end of the spring abuts against the connecting block, and the rear end of the spring abuts against the bracket. Without external force, the spring, through its own elastic force, will push the connecting block to move the slide plate forward to its limit position, thereby resetting the two extension parts to their retracted state, making operation more convenient. Moreover, during the process of the two extension parts splitting by turning the handle, the spring also provides a buffering function, making the operation of the device more stable.
[0011] Furthermore, the left extension component is rotatably connected to the lower rear end of the bracket via a left fixed shaft, and the right extension component is rotatably connected to the lower rear end of the bracket via a right fixed shaft. This improves the installation stability of the left and right extension components.
[0012] Furthermore, the aforementioned skateboard is provided with a through-hole, through which the skateboard is fitted onto the bracket, so that the skateboard can slide smoothly back and forth along the bracket through the through-hole.
[0013] Furthermore, the rear end of the aforementioned skateboard is provided with two connecting lugs facing each other. The rear ends of the two connecting rods are rotatably connected to the connecting lugs on the corresponding sides. Both connecting rods are provided with second guide grooves. The two blades are connected to guide rods. The two ends of the guide rods pass through the two blades and are placed in the second guide grooves on the corresponding sides, so that the connecting rods can rotate and slide along the guide rods through their second guide grooves. This realizes the structural function that the rotating blades will be transmitted to the skateboard to slide back and forth along the bracket through the connecting rods. The two ends of the aforementioned guide rods are provided with rod caps. The rod caps are located outside the second guide grooves, and the diameter of the rod caps is larger than the width of the second guide grooves to ensure the installation stability of the connecting rods.
[0014] Furthermore, the base is provided with cutting limit blocks on the left and right sides of the support respectively. The cutting limit blocks are arranged parallel to the blade, and a cutting limit groove is formed between the cutting limit blocks and the support. When in use, when the keel is fitted on the outside of the support, the left and right side plates of the keel are placed in the cutting limit grooves on the corresponding sides respectively. When the handle is bent downward to drive the blade to cut the keel, the cutting limit blocks will prevent the side plates of the keel from deforming outward.
[0015] Furthermore, the outer rear ends of the two aforementioned cutting limit blocks are respectively connected to bifurcation limit blocks, which form an L-shaped structure with the cutting limit blocks. When the two extensions rotate to the bifurcation state, the outer sides of the two extensions are opposite to the corresponding bifurcation limit blocks, and the bifurcation limit blocks can limit the bifurcation angle of the keel.
[0016] Furthermore, the front ends of the two aforementioned cutting limit blocks are bent outwards, which is equivalent to increasing the width of the front ends of the two cutting limit blocks, making it easier for the keel to be inserted between the two cutting limit blocks and fitted onto the outside of the bracket.
[0017] This utility model's keel cutting and bifurcating guillotine not only satisfies the needs of cutting and bifurcating keels, but also features a pressure plate that secures the keel. The pressure plate is connected to a sliding plate. When the handle is pulled downwards to drive the blade to cut the keel, the pressure plate prevents deformation of the keel end, ensuring a good cutting effect. When the handle is pulled upwards to move the blade, the pressure plate limits the keel, preventing it from moving upwards with the blade and avoiding inconvenience. Furthermore, after the two extension parts have completed the bifurcating process by pulling the handle upwards, the sliding plate will cause the pressure plate to shift away from the keel, thus not interfering with the unloading operation after the keel processing is complete, making operation very convenient. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the first orientation of the keel cutting fork gate according to an embodiment of the present utility model.
[0019] Figure 2 This is a schematic diagram of the second orientation of the keel cutting fork gate according to an embodiment of the present utility model.
[0020] Figure 3 This is a schematic diagram of the base of the keel cutting fork gate according to an embodiment of the present utility model.
[0021] Figure 4 This is a schematic diagram of the sliding cutting mechanism of the keel cutting fork gate according to an embodiment of the present utility model.
[0022] Figure 5 This is a schematic diagram of the rotating forked mechanism of the keel cutting forked gate according to an embodiment of the present invention.
[0023] Figure 6 This is a schematic diagram illustrating the use of the keel cutting fork gate in an embodiment of this utility model.
[0024] Figure 7 This is a schematic diagram of the cut keel structure in an embodiment of this utility model.
[0025] Figure 8 This is a schematic diagram of the bifurcated keel structure in an embodiment of this utility model. Detailed Implementation
[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0029] Example 1
[0030] like Figure 1-3 As shown, this embodiment provides a keel cutting fork guillotine, including a base 1, a sliding cutting mechanism 2, a rotating fork mechanism 5, and a handle 3. The base 1 is provided with a bracket 11 and a blade support 12, as shown. Figure 4 As shown, the sliding cutting mechanism 2 includes a slide plate 21 slidably mounted on the bracket 11 and two blades 22 rotatably connected to the left and right sides of the blade support 12. The two blades 22 are connected to the lower end of the handle 3, and the two blades 22 are linked to the slide plate 21 through the connecting rod 23. Rotating the blades 22 will drive the slide plate 21 to slide back and forth along the bracket 11 through the connecting rod 23.
[0031] like Figure 1 , 5 As shown, the aforementioned rotating forked mechanism 5 includes a left extension 51 and a right extension 52 rotatably connected to the inner side of the front end of the bracket 11, a left transmission plate 53, a right transmission plate 54, and a connecting plate 55 located between the two extensions. The left extension 51 and the right extension 52 are arranged opposite to and parallel to each other. The rear end of the connecting plate 55 is connected to the front end of the slide plate 21. The front end of the connecting plate 55 is rotatably connected to the rear ends of the two transmission plates. The front end of the left transmission plate 53 is rotatably connected to the front end of the left extension 51. The front end of the right transmission plate 54 is rotatably connected to the front end of the right extension 52. When the slide plate 21 slides, it will drive the connecting plate 55 to slide. The sliding of the connecting plate 55 can be transmitted through the two transmission plates to the two extensions to a retracted state parallel to the sliding direction of the connecting plate 55 and a forked state perpendicular to the sliding direction of the connecting plate 55. In the retracted state, the two extensions are located between the two blades 22.
[0032] like Figure 1 , 3As shown, a pressure plate 211 is connected to the skateboard 21. A keel baffle 111 is provided on the bracket 11 at the position below the pressure plate 211. The keel baffle 111 is located in front of the skateboard 21. When the two extension parts are in the retracted state, the front end of the pressure plate 211 extends to the front side of the front end face of the keel baffle 111. When the two extension parts are in the forked state, the front end of the pressure plate 211 retracts to the rear side of the front end face of the keel baffle 111.
[0033] like Figure 6 As shown, when using the keel cutting fork gate in this embodiment, the keel 7 is first placed on the outside of the bracket 11, corresponding to the front position of the keel baffle 111. The rear end face of the keel 7 abuts against the front end face of the keel baffle 111, thus preventing the keel 7 from moving further backward. At this time, the two extension pieces are in a retracted state, and the front end of the pressure plate 211 extends to the front side of the front end face of the keel baffle 111, that is, the front end of the pressure plate 211 is located directly above the rear end of the keel 7. Then, the handle 3 is pulled down to drive the blade 22 to rotate downward and cut the keel. Since the sliding plate 21 has reached its limit of forward sliding, the blade 22 will not continue to rotate downward and cut, thus keeping the two extension pieces in a retracted state. This means that when the blade 22 cuts the keel downward, the pressure plate 211 will always remain directly above the rear end of the keel, thus preventing deformation of the rear end of the keel during the cutting process, resulting in a better cutting effect. After the keel is cut, the handle 3 is turned upward to rotate the blade 22 upward. The upward rotation of the blade 22 will drive the sliding plate 21 through the connecting rod 23 to move the pressure plate 211 backward. At the same time, the sliding plate 21 drives the connecting piece 55 to move backward, which in turn drives the two extension pieces to rotate outward. Before the blade 22 separates from the keel 77, the pressure plate 211 is still above the rear end of the keel 7 to continue to limit the rear end of the keel 7, preventing the cut keel 7 from moving upward with the blade 22, so that the keel 7 remains in the original position. When the handle 3 is turned upward to rotate the two extension pieces to the bifurcated state, the two extension pieces can complete the bifurcation of the cut keel 7. While the keel 7 is bifurcated, the sliding plate 21 also drives the front end of the pressure plate 211 to move backward to the rear side of the front end of the keel baffle 111, so that the front end of the pressure plate 211 is misaligned with the top of the keel 7. At this time, the keel 7 can be moved upward to remove it, thus completing the cutting and bifurcation of the keel 7.
[0034] Example 2
[0035] This embodiment is a further improvement on the keel cutting fork gate structure of Embodiment 1. The improvement lies in that, as... Figure 2As shown, the pressure plate 211 has a first guide groove 2110, and the blade support 12 has a guide post. The guide post is placed in the first guide groove 2110 so that the pressure plate 211 can slide back and forth along the guide post through the first guide groove 2110, making the sliding smoother. The upper end of the guide post has a post cap 4, which is located on the first guide groove 2110. The diameter of the post cap 4 is larger than the width of the first guide groove 2110. The post cap 4 will prevent the pressure plate 211 from moving upward, improving the installation stability of the pressure plate 211.
[0036] like Figure 1 , 4 As shown, for ease of operation of the guillotine, the aforementioned sliding cutting mechanism 2 also includes a reset mechanism for resetting the two extension components to their retracted state. The reset mechanism includes a guide rod 24 and a spring 25 sleeved on the outside of the guide rod 24. A connecting block 213 is located under the slide plate 21. The front end of the guide rod 24 is connected to the connecting block 213, and the rear end of the guide rod 24 is slidably connected to the bracket 11. The front end of the spring 25 abuts against the connecting block 213, and the rear end of the spring 25 abuts against the bracket 11. Without external force, the spring 25, through its own elasticity, pushes the connecting block 213, causing the slide plate 21 to slide forward to its limit position, thereby resetting the two extension components to their retracted state, making operation more convenient. Furthermore, during the process of prying the handle 3 to drive the two extension components to split, the spring 25 also provides a buffering function, making the operation of the device more stable.
[0037] The aforementioned slide plate 21 is provided with a through-hole 210. The slide plate 21 is fitted onto the bracket 11 through the through-hole 210 so that the slide plate 21 can slide smoothly back and forth along the bracket 11 through the through-hole 210.
[0038] like Figure 5 As shown, the left extension 51 is rotatably connected to the lower rear end of the bracket 11 via the left fixed shaft 511, and the right extension 52 is rotatably connected to the lower rear end of the bracket 11 via the right fixed shaft 521. This can improve the installation stability of the left extension 51 and the right extension 52.
[0039] Example 3
[0040] This embodiment is a further improvement on the keel cutting fork gate structure of Embodiment 2. The improvement lies in, for example... Figure 2 , 4As shown, the rear end of the aforementioned slide plate 21 is provided with two connecting lugs 212 facing each other. The rear ends of the two connecting rods 23 are rotatably connected to the connecting lugs 212 on the corresponding sides. Both connecting rods 23 are provided with second guide grooves 231. The two blades 22 are connected to guide rods 221. The two ends of the guide rods pass through the two blades 22 and are placed in the second guide grooves 231 on the corresponding sides, so that the connecting rods 23 can rotate and slide along the guide rods 221 through their second guide grooves 231. This realizes the structural function that the rotating blades 22 will be transmitted to the slide plate 21 to slide back and forth along the bracket 11 through the connecting rods 23. The guide rods 221 are provided with rod caps 222 at both ends. The rod caps 222 are located outside the second guide grooves 231, and the diameter of the rod caps 222 is larger than the width of the second guide grooves 231 to ensure the installation stability of the connecting rods 23.
[0041] like Figure 3 , 6 As shown, the base 1 is provided with cutting limit blocks 61 on the left and right sides of the bracket 11 respectively. The cutting limit blocks 61 are arranged parallel to the blade 22, and a cutting limit groove 60 is formed between the cutting limit blocks and the bracket. When the keel 7 is put on the outside of the bracket 11, the left and right side plates of the keel 7 are placed in the cutting limit grooves 60 on the corresponding sides respectively. When the handle 3 is bent downward to drive the blade 22 to cut the keel, the cutting limit blocks 61 will prevent the side plates of the keel 7 from deforming outward.
[0042] In addition, the two cutting limit blocks 61 are respectively connected to the outer rear end of the two cutting limit blocks 61. The bifurcation limit block 62 and the cutting limit block 61 form an L-shaped structure. When the two extensions are rotated to the bifurcation state, the outer sides of the two extensions are respectively opposite to the bifurcation limit block 62 on the corresponding side. The bifurcation limit block 62 can limit the bifurcation angle of the keel 7.
[0043] The front ends of the two aforementioned cutting limit blocks 61 are bent outwards, which is equivalent to increasing the width of the front ends of the two cutting limit blocks 61, making it easier for the keel 7 to be inserted between the two cutting limit blocks 61 and fitted onto the outside of the bracket 11.
[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A keel cutting fork guillotine includes a base (1), a sliding cutting mechanism (2), a rotating fork mechanism (5), and a handle (3). The base (1) is provided with a bracket (11) and a blade support (12). The sliding cutting mechanism (2) includes a slide plate (21) slidably disposed on the bracket (11) and two blades (22) rotatably connected to the left and right sides of the blade support (12). The two blades (22) are connected to the lower end of the handle (3). The two blades (22) are respectively linked to the slide plate (21) through a connecting rod (23). Rotating the blades (22) will drive the slide plate (21) to slide back and forth along the bracket (11) through the connecting rod (23). The rotating forked mechanism (5) includes a left extension (51) and a right extension (52) rotatably connected to the inside of the bracket (11), a left transmission plate (53), a right transmission plate (54) and a connecting plate (55) located between the two extensions. The left extension (51) and the right extension (52) are arranged opposite to each other and parallel to each other. The rear end of the connecting plate (55) is connected to the slide plate (21), and the front end of the connecting plate (55) is rotatably connected to the rear end of the two transmission plates. The front end of the left transmission plate (53) is rotatably connected to the front end of the left extension (51), and the front end of the right transmission plate (54) is rotatably connected to the front end of the right extension (52). The sliding connecting plate (55) can be driven by the two extensions to rotate to a retracted state parallel to the sliding direction of the connecting plate (55) and a forked state perpendicular to the sliding direction of the connecting plate (55). In the retracted state, the two extensions are located between the two blades (22). Its features are: The slide plate (21) is connected to a pressure plate (211). The bracket (11) is provided with a keel baffle (111) at the position below the pressure plate (211). The keel baffle (111) is located in front of the slide plate (21). When the two extension parts are in the retracted state, the front end of the pressure plate (211) extends to the front side of the front end face of the keel baffle (111). When the two extension parts are in the forked state, the front end of the pressure plate (211) retracts to the rear side of the front end face of the keel baffle (111).
2. The keel cutting fork gate according to claim 1, characterized in that: The pressure plate (211) has a first guide groove (2110), and the blade support (12) has a guide post on it. The guide post is placed in the first guide groove (2110). The upper end of the guide post has a post cap (4). The post cap (4) is located on the first guide groove (2110), and the diameter of the post cap (4) is greater than the width of the first guide groove (2110).
3. A keel cutting fork gate as described in claim 1 or 2, characterized in that: The sliding cutting mechanism (2) also includes a reset mechanism for resetting the two extensions to the storage state.
4. A keel cutting fork guillotine as described in claim 3, characterized in that: The reset mechanism includes a guide rod (24) and a spring (25) sleeved on the outside of the guide rod (24). A connecting block (213) is provided under the slide plate (21). The front end of the guide rod (24) is connected to the connecting block (213), the rear end of the guide rod (24) is slidably connected to the bracket (11), the front end of the spring (25) abuts against the connecting block (213), and the rear end of the spring (25) abuts against the bracket (11).
5. A keel cutting fork guillotine as described in claim 3, characterized in that: The left extension (51) is rotatably connected to the lower rear end of the bracket (11) via the left fixed shaft (511), and the right extension (52) is rotatably connected to the lower rear end of the bracket (11) via the right fixed shaft (521).
6. A keel cutting fork guillotine as described in claim 3, characterized in that: The slide plate (21) is provided with a through hole (210) running from front to back, and the slide plate (21) is fitted onto the bracket (11) through the through hole (210).
7. A keel cutting fork gate according to claim 6, characterized in that: The rear end of the slide plate (21) is provided with two connecting lugs (212) facing each other. The rear ends of the two connecting rods (23) are rotatably connected to the connecting lugs (212) on the corresponding sides. Both connecting rods (23) are provided with second guide grooves (231). The two blades (22) are connected to guide rods (221). The two ends of the guide rods (221) pass through the two blades (22) and are placed in the second guide grooves (231) on the corresponding sides. The two ends of the guide rods (221) are provided with rod caps (222). The rod caps (222) are located outside the second guide grooves (231), and the diameter of the rod caps (222) is greater than the width of the second guide grooves (231).
8. A keel cutting fork guillotine as described in claim 3, characterized in that: The base (1) is provided with cutting limit blocks (61) on the left and right sides of the bracket (11). The cutting limit blocks (61) are arranged parallel to the blade (22), and a cutting limit groove (60) is formed between the cutting limit blocks (61) and the bracket (11).
9. A keel cutting fork gate as described in claim 8, characterized in that: The two cutting limit blocks (61) are respectively connected to the outer rear end of the two cutting limit blocks (62), and the cutting limit blocks (62) and the cutting limit blocks (61) form an L-shaped structure.
10. A keel cutting fork gate as described in claim 8, characterized in that: The front ends of the two cutting limit blocks (61) are bent outwards respectively.