A fixed-length cutting device for river powder production

Abstract

The utility model relates to the technical field of fixed-length cutting for river noodle production, in particular to a fixed-length cutting device for river noodle production, which comprises a bottom frame, a conveying assembly and a cutting assembly, the cutting knife is arranged obliquely with the bottom frame and is distributed in a manner that the middle is low and the two sides are high, the cutting blade gradually cuts into the river noodles from one side to the other side during cutting instead of being pressed vertically, this design converts the traditional vertical pulling force into horizontal shearing force, makes the river noodles bear force evenly, avoids displacement or deformation caused by local stress concentration, when the driving assembly drives the support frame and the arc block to press down, the cutting knife moves along the arc track, the cutting speed into the river noodles is fast at first and then slow, a buffering effect is formed, compared with the traditional instantaneous strong pulling of straight-line pressing down, the arc movement can reduce the pulling force, especially suitable for thin river noodles, and the flatness of the cut is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixed-length cutting technology for rice noodle production, specifically a fixed-length cutting device for rice noodle production. Background Technology

[0002] In the production process of rice noodles, traditional fixed-length cutting devices use a straight cutting blade to press down vertically. When the cutting blade presses down vertically, the bottom of the rice noodle and the blade generate strong friction, which creates a pulling force. This pulling force can cause the rice noodle to shift or deform during the cutting process. This is especially true for thin rice noodles, which are soft and have limited toughness. The effect of the pulling force is more significant, and it is very easy for the cut edges to become rough, broken, or even cracked. Summary of the Invention

[0003] Technical problems to be solved In order to overcome the problem that existing fixed-length cutting devices for rice noodle production are prone to burrs, breakage, or even fracture, this utility model provides a fixed-length cutting device for rice noodle production that is less prone to burrs, breakage, or fracture.

[0004] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a fixed-length cutting device for rice noodle production, comprising: bottom frame; A conveying assembly, the conveying assembly being mounted on one side of the base frame; and A cutting assembly is installed on the other side of the base frame. The cutting assembly includes a sliding frame that is adjustablely disposed on the top of the base frame. The sliding frame has a sliding groove, in which a plurality of cutting blades are slidably disposed. The cutting blades are distributed in a manner that is lower in the middle and higher on both sides. The cutting blades are inclined to the base frame. A platform is fixedly disposed on the top of the cutting blades. An arc-shaped block is fixedly disposed on the top of the platform. A driving assembly is installed on the top of the sliding frame.

[0005] Preferably, an L-plate is slidably disposed on the side of the support frame, the bottom of the L-plate is in contact with the rice noodles, and a first groove corresponding to the number of cutting blades is opened on the side of the L-plate. A first slider is slidably disposed in each of the first grooves, and a limiting post is slidably disposed on the first slider located in the middle. The bottom of the limiting post is fixedly disposed with the L-plate, and a first spring is sleeved on the limiting post. The first spring is fixedly disposed with the first slider and the L-plate.

[0006] Furthermore, a second spring is fixedly installed in the first slide groove located on both sides, and the second spring is fixedly installed with the first slider located on both sides.

[0007] Furthermore, the drive assembly includes a second slide groove, in which a sliding plate is slidably disposed, and a connecting frame is fixedly disposed on the top of the sliding plate. A rotating roller is rotatably disposed between the connecting frames, and the rotating roller is in contact with the arc-shaped block.

[0008] In a further embodiment, vertical plates are fixedly installed on both sides of the top of the sliding frame, and a first bidirectional lead screw is rotatably installed between the vertical plates. A threaded plate is fixedly installed on the top of the connecting frame, and the threaded plate is threaded to the first bidirectional lead screw.

[0009] Based on the aforementioned solution, the conveying assembly includes a support frame, a mounting frame is fixedly provided on the side of the support frame, and a conveying roller is installed at the bottom of the mounting frame.

[0010] Further, based on the aforementioned scheme, the support frame is provided with a third sliding groove, and a plurality of fixed frames are slidably arranged in the third sliding groove. A fourth sliding groove is provided on both sides of the fixed frame, and a third slider is slidably arranged in the fourth sliding groove. A vertical rod is fixedly arranged on the fourth sliding groove, and a third spring is sleeved on the vertical rod. The third spring is fixedly arranged with the third slider, and a dividing blade is rotatably arranged between the third slider.

[0011] Furthermore, based on the aforementioned scheme, a second bidirectional lead screw is rotatably arranged in the third slide groove, a motor is fixedly arranged at the bottom of the bottom frame, and pulleys are fixedly arranged on the output shaft of the motor and the side of the second bidirectional lead screw, and a first belt is arranged between the pulleys for transmission.

[0012] Beneficial effects This rice noodle production uses a fixed-length cutting device. The cutting blade is inclined to the bottom frame and distributed with a lower center and higher sides. During cutting, the blade gradually cuts into the rice noodle from one side to the other, rather than pressing down vertically. This design transforms the traditional vertical pulling force into a horizontal shearing force, making the rice noodle evenly stressed and avoiding displacement or deformation caused by local stress concentration. When the drive component drives the support frame and the arc block to press down, the cutting blade moves along an arc trajectory. The speed of cutting into the rice noodle is fast at first and then slows down, forming a buffer effect. Compared with the instantaneous strong pull of the traditional straight pressing, the arc motion can reduce the pulling force, which is especially suitable for thin rice noodles and improves the flatness of the cut. Attached Figure Description

[0013] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the conveying assembly of this utility model; Figure 3 This is a schematic diagram of the cutting assembly of this utility model; Figure 4This is a schematic diagram of the structure of the drive component of this utility model; Figure 5 This is a schematic diagram of the structure of the dividing blade of this utility model.

[0014] In the diagram: 1. Base frame; 2. Conveying assembly; 3. Cutting assembly; 4. Sliding frame; 5. Sliding groove; 6. Cutting blade; 7. Platform; 8. Arc block; 9. Drive assembly; 10. L-plate; 11. First chute; 12. First slider; 13. Limiting post; 14. First spring; 15. Second spring; 16. Second chute; 17. Sliding plate; 18. Connecting frame; 19. Rotating roller; 20. Vertical plate; 21. First bidirectional lead screw; 22. Threaded plate; 23. Support frame; 24. Mounting frame; 25. Conveying roller shaft; 26. Third chute; 27. Fixing frame; 28. Fourth chute; 29. ​​Third slider; 30. Vertical rod; 31. Third spring; 32. Dividing blade; 33. Second bidirectional lead screw; 34. Motor; 35. Pulley; 36. First belt. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figures 1-5 A fixed-length cutting device for rice noodle production achieves high precision and low breakage in fixed-length cutting of rice noodles through the coordinated design of an inclined cutting blade 6 and an arc-shaped drive structure. The core solution is as follows: the sliding frame 4 of the cutting component 3 is adjustablely set on the top of the bottom frame 1, and the cutting blade 6 on it is inclined with a lower middle and higher sides. The drive component 9 drives the support frame 23 and the arc-shaped block 8 to press down along the arc-shaped trajectory, so that the cutting blade 6 gradually cuts into the rice noodle from one side, converting the tensile force of traditional vertical downward pressure into horizontal shearing force. With the synchronous conveying and tension control of the conveying component 2, the problem of burrs and breakage when cutting thin rice noodles is solved, and the flatness of the cut is improved. It is suitable for rice noodle production scenarios with different thicknesses and toughnesses.

[0017] First, refer to Figure 1In this embodiment, the bottom frame 1 is made of Q235-A steel welded into a rectangular frame. Adjustable anchor bolts are set at the bottom to ensure that the equipment is installed horizontally. A material drop chute is opened on the top surface to facilitate the collection of the cut rice noodles. The conveying assembly 2 is installed on one side of the bottom frame 1 and includes a support frame 23, a mounting frame 24 and a conveying roller 25. The support frame 23 is vertically fixed to the bottom frame 1. The mounting frame 24 on the side is connected to multiple sets of conveying rollers 25 by bolts. The surface of the rollers is covered with a food-grade silicone layer to increase the friction with the rice noodles and prevent slippage during conveying. The conveying rollers 25 are driven by a servo motor 34 (not shown) and the speed is adjusted by a frequency converter to run synchronously with the cutting assembly 3 to ensure stable tension during rice noodle conveying.

[0018] A third groove 26 is provided on the support frame 23, and a fixed frame 27 is slidably installed inside. A third slider 29 is installed in the fourth groove 28 on both sides of the fixed frame 27. A dividing blade 32 is rotatably installed between the sliders through bearings. A vertical rod 30 passes through the third slider 29 and is fixed to the top of the fourth groove 28. A third spring 31 is sleeved on the rod. The two ends of the spring are fixed to the slider and the top of the groove, respectively, so that the dividing blade 32 lightly presses the rice noodles under the action of the spring, pre-dividing the wide rice noodles into several narrow strips, reducing the load on the subsequent cutting component 3, and avoiding edge tearing during wide cutting.

[0019] Then, refer to Figure 2 In this embodiment, the sliding frame 4 has a "door" shaped structure. The bottom is slidably connected to the top of the bottom frame 1 via a linear guide rail. The position can be adjusted along the rice noodle conveying direction to adapt to different fixed length requirements. A horizontal sliding groove 5 is opened on the frame, and several cutting blades 6 are installed inside. The blades are made of 420 stainless steel and are hardened. The blade edge is ground to Ra0.8μm to ensure sharpness. The cutting blades 6 are arranged in an arc shape with a lower middle and higher sides (the arc is adapted to the width of the rice noodles). The whole is inclined at 30°-45° to the bottom frame 1, so that the blades form a gradual shearing when cutting into the rice noodles, rather than vertically pressing down.

[0020] Secondly, see Figure 3 In this embodiment, the frame 7 is fixed to the top of the cutting blade 6 and is in the shape of an inverted "U". An arc-shaped block 8 is fixed in the center of the top. The driving component 9 includes a second slide groove 16, a sliding plate 17, a connecting frame 18 and a rotating roller 19. The sliding plate 17 is embedded in the second slide groove 16. The top connecting frame 18 is rotatably mounted on the rotating roller 19 via a pin. The roller surface is in contact with the outer surface of the arc-shaped block 8. The vertical plate 20 is fixed to both sides of the top of the sliding frame 4. A first bidirectional lead screw 21 is rotatably mounted between them. The threaded plate 22 at the top of the connecting frame 18 is threadedly engaged with the lead screw. When the lead screw rotates, the threaded plate 22 drives the sliding plate 17 to move up and down along the slide groove. The rotating roller 19 rolls along the surface of the arc-shaped block 8, converting linear motion into arc-shaped downward pressing motion, so that the cutting blade 6 cuts into the rice noodles along a "fast-slow" speed curve, reducing the instantaneous impact force.

[0021] See again Figure 3 In this embodiment, an L-plate 10 is slidably mounted on the side of the sliding frame 4. A food-grade rubber pad is attached to the bottom of its horizontal section, which makes light contact with the upper surface of the rice noodles to prevent the rice noodles from curling up during cutting. A first groove 11 corresponding to the cutting blade 6 is opened on the side of the L-plate 10. A first slider 12 in the middle groove is slidably connected to the L-plate 10 through a limiting post 13. A first spring 14 is sleeved on the post. The second springs 15 in the two side grooves are directly fixed to the first slider 12. When the cutting blade 6 is pressed down, the L-plate 10 descends synchronously with the support frame 23. The rubber pad first flattens the rice noodles, and then the cutting blade 6 cuts in. The elastic structure allows the L-plate 10 to adapt to rice noodles of different thicknesses, ensuring uniform pressing force.

[0022] In addition, see Figure 1 In this embodiment, the thin rice noodles are cut as follows: Adjust the sliding frame 4 to a position in front of the conveying assembly 2, and set the tilt angle of the cutting blade 6 to increase the horizontal shearing component and reduce the vertical pulling.

[0023] The conveyor roller 25 adjusts the speed, and the compression of the third spring 31 of the dividing knife 32 is set to 8mm to lightly press the rice noodles without cutting them, maintaining a wide conveying width.

[0024] Cutting process: The first bidirectional lead screw 21 of the drive assembly 9 rotates, driving the rotating roller 19 to press down along the arc block 8. The cutting blade 6 cuts into the rice noodles at an initial speed, and the speed gradually decreases after contact, completing the progressive cutting. The rubber pad of the L plate 10 always covers the upper surface of the rice noodles. The first spring 14 and the second spring 15 compensate for the thickness fluctuation of the rice noodles, and the cut is free of burrs, with rice noodles of fixed length.

[0025] Thick rice noodle cutting: Replace with a cutting blade 6 with a thicker blade, reduce the tilt angle, and increase the vertical force to ensure a clean cut.

[0026] The compression of the third spring 31 of the dividing blade 32 is adjusted to 10mm, which pre-cuts the wide rice noodles into 50mm narrow strips, reducing the single-blade cutting load.

[0027] By reducing the conveying speed, the downward speed of the drive component 9 is slowed down, and the contact pressure between the rotating roller 19 and the arc block 8 is increased, ensuring that the thick rice noodles are completely cut off, and the cut edges are neat and without breakage.

[0028] Finally, see Figure 1 In this embodiment, progressive cutting reduces tearing: the inclined blade gradually cuts into the rice noodles from the edge, cutting the rice noodles like "peeling" rather than the "hard pressing" method of the vertical blade. This avoids severe friction between the blade and the bottom of the rice noodles. Actual tests show that the burr rate of thin rice noodles is reduced from 30% to less than 5% with traditional cutting, and the breakage rate is reduced from 20% to less than 2%, significantly improving the consistency of product appearance.

[0029] Optimized blade angle for cutting effect: The cutting blade 6 is designed with an inclination angle of 30°-45°. Combined with the layout of being low in the middle and high on both sides, the rice noodles are first fixed by force on both sides when cutting, and then cut in the middle, forming an effect similar to "scissors cutting cloth". This further reduces the risk of breakage and is suitable for rice noodles with low toughness.

[0030] Continuous cutting without jamming: The combination of arc-shaped downward pressure and inclined cutting reduces the resistance of the cutting blade 6 into the rice noodles by 40%, and reduces the energy consumption of the drive component 9, enabling high-frequency cutting of 80-100 times per minute, which is 50% more efficient than traditional devices.

[0031] Compatible with multiple specifications of rice noodles: The sliding frame 4 is adjustable in position, and the spacing and tilt angle of the cutting blades 6 can also be finely adjusted by the drive component 9. It can adapt to different specifications of rice noodles with widths of 10-200mm and thicknesses of 0.3-2mm without the need to change the blades, making it highly flexible.

[0032] Reduced blade wear: The inclined cutting method reduces the friction area between the blade and the rice noodles, and the arc motion avoids the hard impact when pressing down vertically. The blade wear rate is reduced by 50%, and the blade replacement cycle is extended from the traditional 1 week to 2-3 weeks.

[0033] Easy-to-clean structural design: The cutting blade 6 and the sliding frame 4 are detachably connected, which makes it difficult for rice noodle residue to accumulate. The blade can be cleaned in just 5 minutes after each production run, improving maintenance efficiency by 70%.

[0034] Ensuring taste and texture: The rice noodles deform less during the cutting process, better preserving their original softness and elasticity. The steamed rice noodles have a smooth texture without breakage or fragments, meeting the quality requirements of high-end catering scenarios.

[0035] Controllable length precision: The speed of the drive component 9 and the conveyor component 2 can be adjusted synchronously to precisely control the cutting length of rice noodles, meet the standardized requirements of packaging and cooking, and reduce the waste of raw materials caused by inconsistent lengths.

[0036] Working principle: In use, the fixed-length cutting device for rice noodle production first drives the second bidirectional lead screw 33 to rotate through the pulley 35 and the first belt 36, causing the fixed frame 27 to slide in the third slide groove 26, which drives the dividing blade 32 to adjust to a suitable spacing (set according to the width of the rice noodles). The rice noodles are uniformly conveyed to the cutting area by the conveying roller shaft 25 (installed at the bottom of the mounting frame 24). The third slider 29 is pressed tightly against both sides of the rice noodles under the action of the third spring 31. The width of the rice noodles is initially positioned by the dividing blade 32 to ensure accurate cutting position.

[0037] According to the fixed length requirement of rice noodles, manually adjust the position of the sliding frame 4 at the top of the bottom frame 1. After locking, ensure that the distance between the cutting blade 6 and the conveying direction matches the fixed length size. The bottom of the L plate 10 is in contact with the surface of the rice noodles. The first slider 12 in the middle is pressed down elastically by the limiting post 13 and the first spring 14, and the first sliders 12 on both sides are pressed down by the second spring 15 to flatten and fix the rice noodles, so as to avoid displacement during cutting.

[0038] Motor 34 drives the first bidirectional lead screw 21 to rotate, threaded plate 22 pushes connecting frame 18 and sliding plate 17 to move in the second slide groove 16, rotating roller 19 rolls along the surface of arc block 8, driving support frame 23 and cutting blade 6 to move downward. The cutting blade 6 is inclined with a low middle and high two sides, and gradually cuts into the rice noodle from one side to the other (the blade is inclined at an angle of about 15°-30° to the bottom frame 1), converting the vertical pulling force into the horizontal shearing force, reducing the deformation of the rice noodle. The cutting blade 6 moves along the arc trajectory (guided by arc block 8), and the cutting speed is fast at first and then slow, forming a buffer effect, which is especially suitable for thin rice noodles and improves the flatness of the cut.

[0039] After the cutting blade 6 fully cuts in, the rice noodles are cut to a fixed length and fall into the collection device. The drive component 9 moves in the opposite direction, and the cutting blade 6 rises and resets with the support frame 23. The L plate 10 is lifted by the spring, and the conveying component 2 continues to convey the next section of rice noodles, entering the next round of cutting cycle.

[0040] By changing the position of the sliding frame 4 at the top of the bottom frame 1, the distance between the cutting blade 6 and the conveying roller shaft 25 is adjusted, so that the fixed length of the rice noodles can be flexibly adjusted (e.g., from 20cm to 30cm). The second bidirectional screw 33 is rotated to drive the fixed frame 27 and the dividing blade 32 to move in the third slide groove 26 to adapt to rice noodles of different widths (e.g., from 10cm wide to 15cm wide). The third spring 31 ensures that the dividing blade 32 is close to the edge of the rice noodles.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed-length cutting device for rice noodle production, characterized in that, include: Bottom frame (1); A conveying assembly (2) is mounted on one side of the base frame (1); as well as A cutting assembly (3) is installed on the other side of the bottom frame (1). The cutting assembly (3) includes a sliding frame (4). The sliding frame (4) is adjustablely set on the top of the bottom frame (1). A sliding groove (5) is provided on the sliding frame (4). A plurality of cutting blades (6) are slidably arranged in the sliding groove (5). The cutting blades (6) are distributed in a way that is low in the middle and high on both sides. The cutting blades (6) are inclined to the bottom frame (1). A platform (7) is fixedly set on the top of the cutting blades (6). An arc block (8) is fixedly set on the top of the platform (7). A driving assembly (9) is installed on the top of the sliding frame (4).

2. The fixed-length cutting device for rice noodle production according to claim 1, characterized in that, The sliding frame (4) has an L-plate (10) slidably disposed on its side. The bottom of the L-plate (10) is in contact with the rice noodles. The side of the L-plate (10) has a first groove (11) corresponding to the number of the cutting blades (6). A first slider (12) is slidably disposed in each of the first grooves (11). A limit post (13) is slidably disposed on the first slider (12) located in the middle. The bottom of the limit post (13) is fixedly disposed with the L-plate (10). A first spring (14) is sleeved on the limit post (13). The first spring (14) is fixedly disposed with the first slider (12) and the L-plate (10).

3. The fixed-length cutting device for rice noodle production according to claim 2, characterized in that, A second spring (15) is fixedly installed in the first slide groove (11) located on both sides, and the second spring (15) is fixedly installed with the first slider (12) located on both sides.

4. The fixed-length cutting device for rice noodle production according to claim 3, characterized in that, The drive assembly (9) includes a second slide groove (16), in which a sliding plate (17) is slidably disposed. A connecting frame (18) is fixedly disposed on the top of the sliding plate (17), and a rotating roller (19) is rotatably disposed between the connecting frames (18). The rotating roller (19) is in contact with the arc-shaped block (8).

5. The fixed-length cutting device for rice noodle production according to claim 4, characterized in that, Vertical plates (20) are fixedly installed on both sides of the top of the sliding frame (4), and a first bidirectional lead screw (21) is rotatably installed between the vertical plates (20). A threaded plate (22) is fixedly installed on the top of the connecting frame (18), and the threaded plate (22) and the first bidirectional lead screw (21) are connected by threads.

6. The fixed-length cutting device for rice noodle production according to claim 5, characterized in that, The conveying assembly (2) includes a support frame (23), a mounting frame (24) is fixedly provided on the side of the support frame (23), and a conveying roller (25) is installed at the bottom of the mounting frame (24).

7. The fixed-length cutting device for rice noodle production according to claim 6, characterized in that, The support frame (23) is provided with a third slide groove (26), and a number of fixed frames (27) are slidably arranged in the third slide groove (26). A fourth slide groove (28) is provided on both sides of the fixed frame (27). A third slider (29) is slidably arranged in the fourth slide groove (28). A vertical rod (30) is fixedly arranged on the fourth slide groove (28). A third spring (31) is sleeved on the vertical rod (30). The third spring (31) is fixedly arranged with the third slider (29). A dividing blade (32) is rotatably arranged between the third slider (29).

8. The fixed-length cutting device for rice noodle production according to claim 7, characterized in that, The third slide groove (26) is rotatably provided with a second bidirectional lead screw (33), the bottom of the bottom frame (1) is fixedly provided with a motor (34), the output shaft of the motor (34) and the side of the second bidirectional lead screw (33) are both fixedly provided with pulleys (35), and the pulleys (35) are connected by a first belt (36) for transmission.

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