Double-screw self-matured buckwheat noodle extrusion forming device

Abstract

The present application relates to the processing technology field of buckwheat noodles, and discloses a double-spiral self-maturation buckwheat noodle extrusion forming device, which comprises a base, a double-screw extrusion main body is installed on the base, and a feeding cylinder and a discharging die head are arranged at the two ends of the double-screw extrusion main body; the device further comprises an equipment frame, a conveying part, a cutting assembly, a magnetic attraction assembly, an elastic separation assembly and a limiting assembly; two groups of vertical sliding grooves are symmetrically formed in the inner walls of the equipment frame, and a sliding frame is slidably arranged in the sliding grooves; when the device is stopped and the driving part is powered off, the elastic separation assembly releases elastic force to pull the sliding frame to quickly lift upward, so that the rotary cutter quickly moves away from the conveying part; the linear lifting response speed of the sliding frame is fast, the rotary cutter can be avoided in the time period when the rotary cutter continuously rotates by inertia, the rotary cutter is spatially separated from the buckwheat noodles, the rotary cutter inertia rotation is avoided, and the problems of different lengths of buckwheat noodles, irregular cross sections and increased broken noodles are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of buckwheat noodle processing technology, specifically a double-helix self-cooking buckwheat noodle extrusion molding device. Background Technology

[0002] Buckwheat, as a type of coarse grain crop rich in dietary fiber, flavonoids and various trace elements, has high nutritional value and health benefits. In recent years, with the increasing demand of consumers for healthy diets, the market for coarse grain staple food products such as buckwheat noodles has developed rapidly.

[0003] In industrial production, buckwheat noodles are mostly formed using a twin-screw self-cooking extrusion molding process. This process first mixes buckwheat flour with an appropriate amount of water to achieve the right moisture content. Then, a twin-screw extruder is used to convey, mix, shear, and knead the moistened buckwheat flour. The friction between the material and the screw and barrel generates heat, causing the buckwheat starch to gelatinize. Finally, the noodles are extruded into continuous strips through a molding die. The formed buckwheat noodles are then received by a conveyor belt and transported to the cutting station, where a rotary cutter cuts them to a set length before they enter the subsequent drying or packaging process.

[0004] Existing cutting structures mostly use motors to directly drive the cutter to rotate continuously for cutting. However, after the equipment stops and the motor is powered off, the cutter cannot stop instantly due to the rotational inertia of the motor rotor and the cutter roller. It will continue to rotate at a certain angle under the action of inertia. At this time, the conveyor belt is still in the conveying state. During the deceleration inertia stage, the cutter will still contact and cut the buckwheat noodles on the conveyor belt, resulting in inconsistent noodle cutting lengths before and after the machine stops. This leads to defects such as long and short strips, broken strips, and oblique cuts, which seriously affect the appearance and dimensional consistency of the finished product.

[0005] To address the problem of inertial cutting errors, existing technologies typically employ methods such as adding electromagnetic brakes, optimizing servo braking programs, and increasing damping structures to force braking of the cutter and shorten inertial sliding time. However, these improvements still have significant drawbacks: the braking mechanism has a response delay, and inertial cutting errors cannot be completely eliminated under high-speed production conditions; furthermore, forced braking can easily impact the transmission structure, affecting the service life of the equipment.

[0006] To address the problems mentioned above, those skilled in the art have proposed a double-helix self-cooking buckwheat noodle extrusion molding device. Summary of the Invention

[0007] The purpose of this invention is to provide a double-helix self-cooking buckwheat noodle extrusion molding device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A double-helix self-cooking buckwheat noodle extrusion molding device includes a base, on which a twin-screw extrusion body is mounted, and the two ends of the twin-screw extrusion body are respectively provided with a feed cylinder and a discharge die head. It also includes: an equipment frame, a conveying section, a cutting component, a magnetic suction component, an elastic separation component, and a limiting component.

[0010] The inner wall of the equipment rack has two sets of vertical sliding grooves symmetrically opened on both sides, and a sliding frame is slidably arranged in the sliding groove;

[0011] The conveying section is mounted on the base and positioned opposite the discharge die head, and is used to convey buckwheat noodles after extrusion molding.

[0012] The cutting assembly is mounted on the sliding frame and can work with the conveying unit to perform periodic cutting operations on buckwheat noodles;

[0013] The magnetic suction component is installed between the equipment frame and the sliding frame. When the cutting component is powered on, the magnetic suction component is powered on simultaneously. The magnetic force generated attracts the sliding frame to descend, allowing the cutting component to reach the cutting position. When the cutting component is powered off, the magnetic suction component is powered off simultaneously. The sliding frame moves upward under the elastic force of the elastic separation component and separates from the conveying part.

[0014] The elastic separation component is disposed on the top of the equipment rack and fixedly connected to the sliding frame, and is used to provide an elastic driving force for the sliding frame to separate upwards;

[0015] The limiting component is disposed between the equipment frame and the sliding frame. When the magnetic attraction component is energized to generate magnetic force, the magnetic force synchronously drives the limiting component to act on the sliding frame. When the sliding frame moves to the cutting position of the cutting component, the limiting component constrains the position of the sliding frame.

[0016] As a preferred embodiment of the present invention, the conveying unit includes two sets of conveying frames symmetrically installed on the top of the base. A plurality of conveying rollers are rotatably arranged at one end of the conveying frame near the discharge die head. The conveying frame is provided with a cutting groove corresponding to the conveying rollers. A conveyor belt is provided on one side of the conveying frame opposite to the conveying rollers.

[0017] As a preferred embodiment of the present invention, a fixed seat and a support frame are respectively installed on the bottom and side wall of the equipment frame, and the fixed seat, the support frame and the conveyor frame are fixedly connected.

[0018] As a preferred embodiment of the present invention, the cutting assembly includes a drive shaft rotatably disposed in the middle of the sliding frame, a rotating cutter facing the cutting groove at the end of the drive shaft, a drive component mounted on the sliding frame, and the output end of the drive component being fixedly connected to the drive shaft.

[0019] As a preferred embodiment of the present invention, the magnetic attraction assembly includes an electromagnet installed on the bottom wall of the equipment frame, and a first fixed magnet corresponding to the electromagnet is installed at the bottom of the sliding frame. When the electromagnet is energized, its magnetic poles are different from those of the first fixed magnet, and the electromagnet is electrically connected to the driving component.

[0020] As a preferred embodiment of the present invention, the elastic separation assembly includes two sets of separation cylinders symmetrically installed on the top wall of the equipment frame, a separation block is slidably disposed inside the separation cylinder, a separation pull rod is installed at the bottom of the separation block extending out of the separation cylinder and fixedly connected to the top of the sliding frame, and a second spring is disposed between the top wall of the separation cylinder and the separation block.

[0021] As a preferred embodiment of the present invention, the limiting component includes limiting cavities symmetrically opened on the inner walls of both sides of the equipment frame, a rotating shaft is rotatably arranged in the limiting cavity, a limiting plate is installed on the rotating shaft, the bottom sides of the sliding frame are provided with slots adapted to the limiting plate, and a first spring is provided between the limiting plate and the inner wall of the limiting cavity, and one end of the push rod is hinged to the bottom of the limiting plate.

[0022] As a preferred embodiment of the present invention, the magnetic suction assembly further includes movable slots on both sides of the bottom of the equipment frame. A second fixed magnet is slidably disposed in the movable slot and hinged to the other end of the push rod. The electromagnet extends horizontally into the bottom of the movable slot. When the electromagnet is energized, it has the same magnetic pole as the second fixed magnet.

[0023] As a preferred embodiment of the present invention, it further includes a buffer assembly, which includes a buffer cylinder installed on the top wall of the equipment rack, a buffer block slidably disposed inside the buffer cylinder, a buffer rod extending out of the buffer cylinder installed at the bottom of the buffer block, a buffer plate installed at the bottom end of the buffer rod, and a telescopic damping rod and a third spring disposed between the top wall of the buffer cylinder and the buffer block.

[0024] The present invention has the following advantages:

[0025] This invention utilizes a combination of a magnetic attraction component and an elastic separation component. When the cutting component is working normally, the electromagnet is energized to attract the first fixed magnet, causing the sliding frame to move downwards, allowing the rotating cutter to reach the cutting station for cutting. When the equipment stops and the drive unit is de-energized, the electromagnet simultaneously demagnetizes, and the elastic separation component releases its elastic force to pull the sliding frame upwards rapidly, causing the rotating cutter to quickly move away from the conveyor section. The sliding frame's linear lifting response is fast, enabling it to avoid contact with the buckwheat noodles within the time it takes for the rotating cutter to continue rotating due to inertia. This spatially prevents the rotating cutter from contacting the buckwheat noodles, avoiding miscutting caused by the rotating cutter's inertial rotation. This effectively solves the problems of inconsistent buckwheat noodle lengths, irregular cross-sections, and increased broken strips, improving the consistency of the finished product's dimensions.

[0026] In addition, by combining the added limiting component with the magnetic attraction component, the electromagnet, when energized, uses the principle of like poles repulsion to drive the second fixed magnet to move. The push rod drives the limiting plate to rotate and engage with the slot at the bottom of the sliding frame. After the sliding frame descends to the cutting position, it achieves mechanical locking, which can counteract the reverse impact generated by the rotary cutter during the cutting process, prevent the sliding frame from moving upward, ensure the stability of the rotary cutter's working position, and continuously guarantee cutting accuracy. When the electromagnet is de-energized, the first spring drives the limiting plate to rotate and disengage from the slot, releasing the constraint on the sliding frame and not hindering the upward reset action of the sliding frame.

[0027] In addition, through the buffer components, the sliding frame contacts the buffer plate during the upward lifting and resetting process. With the help of the third spring and the telescopic damping rod, the impact kinetic energy is absorbed, which reduces the vibration and noise generated by the sliding frame hitting the equipment frame upward, reduces the collision wear of various components, extends the service life of the mechanism, and at the same time suppresses the transmission of vibration to avoid vibration affecting the conveyor belt's conveying stability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a double-helix self-cooking buckwheat noodle extrusion molding device.

[0029] Figure 2 This is a schematic diagram of the twin-screw extrusion body in a twin-helix self-cooking buckwheat noodle extrusion molding device.

[0030] Figure 3 This is a schematic diagram of the conveying section in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0031] Figure 4 This is a schematic diagram of the equipment frame in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0032] Figure 5 This is a schematic diagram of the structure of the equipment frame and sliding frame in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0033] Figure 6 This is a schematic diagram of the cutting component in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0034] Figure 7 This is a schematic diagram of the magnetic suction component in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0035] Figure 8 This is a schematic diagram of the limiting component in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0036] Figure 9 for Figure 8 A magnified view of a portion of point A in the middle.

[0037] Figure 10This is a schematic diagram of the elastic separation component in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0038] Figure 11 This is a schematic diagram of the buffer component in a double-helix self-cooking buckwheat noodle extrusion molding device.

[0039] In the diagram: 100, base; 200, twin-screw extrusion body; 210, feed cylinder; 220, discharge die; 300, conveying section; 310, conveying frame; 320, conveying roller; 330, cutting groove; 340, conveyor belt; 400, fixed seat; 410, equipment frame; 420, chute; 430, sliding frame; 440, support frame; 500, cutting assembly; 510, drive shaft; 520, rotary cutter; 530, driving component; 600, magnetic attraction assembly; 610, electromagnet; 620, first fixed magnet; 630, Movable groove; 640, Second fixed magnet; 700, Limiting assembly; 710, Limiting cavity; 720, Rotating shaft; 730, Limiting plate; 740, Slot; 750, First spring; 760, Pushing rod; 800, Elastic separation assembly; 810, Separation cylinder; 820, Separation block; 830, Separation pull rod; 840, Second spring; 900, Buffer assembly; 910, Buffer cylinder; 920, Buffer block; 930, Buffer rod; 940, Buffer plate; 950, Telescopic damping rod; 960, Third spring. Detailed Implementation

[0040] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0041] Please see Figures 1-11 A double-helix self-cooking buckwheat noodle extrusion molding device includes a base 100, on which a twin-screw extrusion body 200 is mounted, and the two ends of the twin-screw extrusion body 200 are respectively provided with a feed cylinder 210 and a discharge die head 220. It also includes: an equipment frame 410, a conveying section 300, a cutting assembly 500, a magnetic suction assembly 600, an elastic separation assembly 800, and a limiting assembly 700.

[0042] The inner wall of the equipment rack 410 is symmetrically provided with two sets of vertical sliding grooves 420 on both sides, and a sliding frame 430 is slidably arranged in the sliding grooves 420.

[0043] The conveying part 300 is disposed on the base 100 and is opposite to the discharge die head 220, and is used to convey the buckwheat noodles after extrusion molding.

[0044] The cutting assembly 500 is mounted on the sliding frame 430 and can work with the conveying unit 300 to perform periodic cutting operations on buckwheat noodles;

[0045] The magnetic suction component 600 is disposed between the equipment frame 410 and the sliding frame 430. When the cutting component 500 is powered on, the magnetic suction component 600 is powered on simultaneously. The magnetic force generated attracts the sliding frame 430 to descend, allowing the cutting component 500 to reach the cutting position. When the cutting component 500 is powered off, the magnetic suction component 600 is powered off simultaneously. The sliding frame 430 moves upward under the elastic force of the elastic separation component 800 and separates from the conveying part 300.

[0046] The elastic separation component 800 is disposed on the top of the equipment rack 410 and fixedly connected to the sliding frame 430, and is used to provide an elastic driving force for the sliding frame 430 to separate upwards;

[0047] The limiting component 700 is disposed between the equipment frame 410 and the sliding frame 430. When the magnetic attraction component 600 is energized and generates magnetic force, the magnetic force synchronously drives the limiting component 700 to act on the sliding frame 430. When the sliding frame 430 moves to the cutting position of the cutting component 500, the limiting component 700 implements position constraint on the sliding frame 430.

[0048] This invention utilizes a magnetic suction component 600 and an elastic separation component 800 in cooperation. When the cutting component 500 is working normally, the magnetic suction component 600 is synchronously energized, and the generated magnetic force drives the sliding frame 430 to overcome the elastic force exerted by the elastic separation component 800 on the sliding frame 430 and move downward, allowing the cutting component 500 to reach the cutting position for cutting. When the equipment stops and the power is cut off, the electromagnet 610 is simultaneously demagnetized, and the elastic separation component 800 releases its elastic force to pull the sliding frame 430 upward quickly, causing the cutting component 500 to quickly move away from the conveying section 300. The sliding frame 430 has a fast linear lifting response speed, and can complete the avoidance within the time period during which the cutting component 500 continues to rotate due to inertia. This spatially prevents the cutting component 500 from contacting the buckwheat noodles, avoiding miscutting caused by the inertial rotation of the cutting component 500, effectively solving the problems of inconsistent lengths, irregular cross-sections, and increased broken strips in buckwheat noodles, and improving the consistency of finished product dimensions.

[0049] Please see Figure 3 In one embodiment, the conveying unit 300 includes two sets of conveying frames 310 symmetrically installed on the top of the base 100. A plurality of conveying rollers 320 are rotatably arranged at one end of the conveying frame 310 near the discharge die head 220. The conveying frame 310 is provided with a cutting groove 330 corresponding to the conveying rollers 320. A conveyor belt 340 is provided on the side of the conveying frame 310 opposite to the conveying rollers 320.

[0050] Buckwheat raw materials are fed into the twin-screw extruder body 200 through the feed cylinder 210. After being sheared by the screw and heated to gelatinize, the raw materials are self-cooked and plasticized. Finally, the raw materials are continuously extruded into buckwheat noodles through the discharge die head 220. The continuously extruded buckwheat noodles fall on the conveyor roller 320 and are supported and transported by the conveyor belt 340.

[0051] During the process of cutting buckwheat noodles by rotating the cutting component 500, the blade passes downward through the buckwheat noodles and extends into the cutting groove 330. The cutting groove 330 provides clearance for the cutting component 500 to prevent the blade from colliding with the conveyor frame 310, while ensuring that the cutting component 500 can fully cut the buckwheat noodles and prevent the occurrence of continuous strips.

[0052] Please see Figure 4 In one embodiment, the bottom and side walls of the equipment frame 410 are respectively equipped with a fixed seat 400 and a support frame 440, and the fixed seat 400 and the support frame 440 are fixedly connected to the conveyor frame 310.

[0053] The equipment frame 410 forms a multi-point support and constraint structure with the fixed base 400 and the support frame 440, so that the equipment frame 410 is stably erected above the conveyor frame 310, ensuring that the equipment frame 410 and the conveyor 300 form an integrated rigid frame.

[0054] Please see Figure 4 and Figure 6 In one embodiment, the cutting assembly 500 includes a drive shaft 510 rotatably disposed in the middle of the sliding frame 430, a rotating cutter 520 disposed at the end of the drive shaft 510 facing the cutting groove 330, a drive member 530 mounted on the sliding frame 430, and the output end of the drive member 530 being fixedly connected to the drive shaft 510.

[0055] In the initial state, the sliding frame 430 is held in the upper raised position by the elastic force of the elastic separation component 800, and the rotating cutter 520 is away from the buckwheat noodle conveying channel above the conveyor belt 340.

[0056] When the equipment starts the cutting operation, the drive component 530 is powered on to drive the rotary cutter 520 to rotate continuously. At the same time, the magnetic attraction component 600 is powered on synchronously and generates an attraction magnetic force. This magnetic force can overcome the elastic tension applied by the elastic separation component 800 to the sliding frame 430, and drive the sliding frame 430 to slide steadily downward along the vertical slide groove 420 of the equipment frame 410 until it moves to the preset cutting position.

[0057] After the sliding frame 430 is in place, the rotary cutting area of ​​the rotary cutter 520 is aligned with the cutting groove 330, and the rotary cutter 520, in conjunction with the buckwheat noodles being conveyed at a constant speed, performs periodic cutting operations.

[0058] Specifically, during production, the drive unit 530 continuously drives the drive shaft 510 to rotate at a constant speed, which in turn drives the rotary cutter 520 to maintain stable high-speed rotation. By utilizing the continuous circular motion of the rotary blade, the buckwheat noodles moving at a constant speed on the conveyor belt 340 are continuously cut to a fixed length. Since the cutter adopts a rotary cutting method, the cutting process is smooth and the impact is small. It is suitable for the soft texture, low toughness and easy breakage characteristics of wet self-cooked buckwheat noodles, which can effectively reduce the problems of broken strips and burrs on the cross-section.

[0059] Please see Figure 7 In one embodiment, the magnetic attraction component 600 includes an electromagnet 610 installed on the bottom wall of the equipment rack 410. A first fixed magnet 620 corresponding to the electromagnet 610 is installed at the bottom of the sliding frame 430. When the electromagnet 610 is energized, its magnetic poles are different from those of the first fixed magnet 620. The electromagnet 610 is electrically connected to the driving component 530.

[0060] When the equipment starts the cutting operation, the drive unit 530 is energized to drive the rotary cutter 520 to rotate continuously. At the same time, the electromagnet 610 is energized to generate a stable magnetic attraction force. The magnetic force acts on the first fixed magnet 620, generating a downward attraction force. This attraction force can overcome the elastic force exerted by the elastic separation component 800 on the sliding frame 430, forcibly driving the sliding frame 430 to slide smoothly down the vertical slide groove 420, so that the rotary cutter 520 accurately reaches the cutting position, ensuring that the cutter and the cutting groove 330 are accurately aligned, and realizing a stable and continuous rotary cutting operation.

[0061] When the equipment stops and the drive component 530 is de-energized and stops outputting power, the electromagnet 610 is simultaneously de-energized and demagnetized. The magnetic attraction disappears instantly and no longer applies downward pressure to the sliding frame 430. At this time, the elastic force of the elastic separation component 800 is fully released, and the sliding frame 430 and the rotating cutter 520 are quickly pulled upward to reset and lift away from the working surface, completely eliminating defects such as miscutting and length deviation of buckwheat noodles during the inertial idling process of the cutter after power failure.

[0062] It should be noted that the specific structure of the drive component 530 is not limited. In this embodiment, the drive component 530 is set as a servo motor.

[0063] Please see Figure 4 and Figure 11 In one embodiment, the elastic separation assembly 800 includes two sets of separation cylinders 810 symmetrically installed on the top wall of the equipment frame 410. A separation block 820 is slidably disposed inside the separation cylinder 810. A separation pull rod 830 is installed at the bottom of the separation block 820, extending out of the separation cylinder 810 and fixedly connected to the top of the sliding frame 430. A second spring 840 is disposed between the top wall of the separation cylinder 810 and the separation block 820.

[0064] In the initial state, the second spring 840 is always in a stretched state, the separating block 820 is continuously subjected to an upward elastic force, and the sliding frame 430 is pulled upward via the separating pull rod 830, so that the sliding frame 430 is kept in the upper limit position and abuts against the bottom end of the separating cylinder 810. At this time, the cutting assembly 500 is lifted as a whole and separated from the cutting station, and the rotating cutter 520 is moved away from the buckwheat noodle conveying path.

[0065] When the drive unit 530 is powered on to start the cutting operation, the magnetic suction component 600 generates an attraction force and overcomes the elastic tension of the second spring 840, pulling the sliding frame 430 down the slide groove 420 until it reaches the cutting position. During the downward movement of the sliding frame 430, the separation block 820 is driven by the separation pull rod 830 to move synchronously to the bottom of the separation cylinder 810 until the separation block 820 reaches the bottom of the separation cylinder 810, that is, the sliding frame 430 moves to the cutting position of the cutting component 500.

[0066] Specifically, when the equipment starts the cutting operation, the rotary cutter 520 rotates continuously, and at the same time the magnetic suction component 600 generates a downward suction force. This suction force can overcome the elastic tension exerted by the second spring 840 in the elastic separation component 800 on the sliding frame 430, forcibly driving the sliding frame 430 to slide smoothly down the vertical slide groove 420, so that the rotary cutter 520 accurately reaches the cutting position, ensuring that the cutter and the cutting groove 330 are accurately aligned, and realizing a stable and continuous rotary cutting operation.

[0067] When the equipment stops and the cutting component 500 is de-energized and stops outputting power, the magnetic component 600 is simultaneously de-energized and demagnetized. The magnetic attraction effect disappears instantly, and no longer applies downward attraction force to the sliding frame 430. At this time, the elastic force of the second spring 840 is completely released, and the sliding frame 430, together with the rotating cutter 520, is quickly pulled upward and lifted away from the working surface by the separation block 820 and the separation rod 830. This completely eliminates defects such as miscutting and length deviation of buckwheat noodles during the inertial idling process of the cutter when the power is off.

[0068] Please see Figure 8 and Figure 9 In one embodiment, the limiting component 700 includes limiting cavities 710 symmetrically opened on the inner walls of both sides of the equipment frame 410. A rotating shaft 720 is rotatably arranged in the limiting cavity 710. A limiting plate 730 is installed on the rotating shaft 720. The bottom sides of the sliding frame 430 are provided with slots 740 adapted to the limiting plate 730. A first spring 750 is provided between the limiting plate 730 and the inner wall of the limiting cavity 710. One end of the push rod 760 is hinged to the bottom of the limiting plate 730.

[0069] The limiting plate 730 is arranged at an angle downwards, and the slot 740 at the bottom of the sliding frame 430 is set at an angle upwards, so that the two form a matching one-way ratchet engagement structure.

[0070] Furthermore, the magnetic attraction assembly 600 also includes movable slots 630 formed on both sides of the bottom of the equipment frame 410. A second fixed magnet 640 is slidably disposed in the movable slot 630 and hinged to the other end of the push rod 760. An electromagnet 610 extends horizontally into the bottom of the movable slot 630. When the electromagnet 610 is energized, it has the same magnetic poles as the second fixed magnet 640.

[0071] In the initial state, the first spring 750 is in a stretched state, continuously applying an elastic force towards the inside of the limiting cavity 710 to the limiting plate 730, so that the limiting plate 730 remains in a retracted posture and stays at the opening position of the limiting cavity 710. At this time, the limiting plate 730 is completely disengaged from the serrated groove 740 at the bottom of the sliding frame 430, releasing the locking constraint on the sliding frame 430. Therefore, the sliding frame 430 has no structural limiting interference inside the sliding groove 420 and can smoothly and freely complete the up and down sliding action along the sliding groove 420.

[0072] When the electromagnet 610 is energized, the repulsive force of like poles pushes the second fixed magnet 640 upward along the movable groove 630. The push rod 760 pushes the limiting plate 730 to overcome the tension of the first spring 750 and flip outward, causing the limiting plate 730 to engage with the slot 740. This unidirectional limiting structure is formed by the inclined fitting structure. During the downward movement of the sliding frame 430, it can smoothly pass over the limiting plate 730. When the sliding frame 430 reaches the cutting position, the limiting plate 730 is precisely engaged. The sliding frame 430 is prevented from moving upward by the slot 740. The elastic separation component 800 can position the sliding frame 430, resist the impact reaction force generated by the rotating cutter 520, prevent the sliding frame 430 from moving upward, and stabilize the cutting height. After the electromagnet 610 is de-energized, the first spring 750 pulls the limit plate 730 to rotate and disengage from the slot 740, releasing the lock and not hindering the sliding frame 430 from rising and resetting under the action of the second spring 840.

[0073] Please see Figure 4 and Figure 11 In one embodiment, a buffer assembly 900 is also included. The buffer assembly 900 includes a buffer cylinder 910 installed on the top wall of the equipment rack 410, a buffer block 920 slidably disposed inside the buffer cylinder 910, a buffer rod 930 extending out of the buffer cylinder 910 installed at the bottom of the buffer block 920, a buffer plate 940 installed at the bottom end of the buffer rod 930, and a telescopic damping rod 950 and a third spring 960 disposed between the top wall of the buffer cylinder 910 and the buffer block 920.

[0074] In the initial state, the third spring 960 and the telescopic damping rod 950 are in a naturally extended state, and the buffer plate 940 is suspended above the sliding frame 430, without interfering with the downward cutting action of the sliding frame 430. When the equipment is in normal cutting operation, the sliding frame 430 moves down to the cutting position and moves away from the buffer assembly 900. The buffer assembly 900 remains stationary and will not affect the cutting accuracy or the movement of the mechanism.

[0075] When the equipment stops and the power is cut off, the magnetic attraction component 600 loses its magnetism and unlocks. The elastic separation component 800 drives the sliding frame 430 to quickly return to its original position and lift the blade. The top of the sliding frame 430 finally impacts the buffer plate 940. The upward impact force of the sliding frame 430 is transmitted to the buffer block 920 through the buffer plate 940 and the buffer rod 930, causing the buffer block 920 to slide upward along the buffer cylinder 910, compressing the third spring 960 and the telescopic damping rod 950. Through the synergistic effect of the elastic buffering energy absorption of the third spring 960 and the damping energy dissipation of the telescopic damping rod 950, the impact kinetic energy generated by the rapid upward movement of the sliding frame 430 is effectively absorbed, greatly reducing the impact vibration and lowering the operating noise.

[0076] The working principle of this invention is as follows: In the initial state when the device is not in operation, the second spring 840 is in a stretched state, and the sliding frame 430 is continuously pulled upward by the separation pull rod 830, so that the sliding frame 430 stops at the upper end of the slide groove 420, the cutting assembly 500 is in a high-level avoidance state, and the rotating cutter 520 is away from the working surface of the conveyor belt 340; at the same time, the first spring 750 is in a stretched state, pulling the limiting plate 730 into the limiting cavity 710, and the limiting plate 730 is completely separated from the slot 740 at the bottom of the sliding frame 430, so that the sliding frame 430 is in a freely sliding unlocked state.

[0077] When the equipment starts production, the twin-screw extruder 200 extrudes buckwheat flour through extrusion, gelatinization, and maturation, and then continuously extrudes it into strips of buckwheat noodles through the discharge die head 220. The formed buckwheat noodles fall onto the conveyor rollers 320 and the conveyor belt 340 of the conveyor frame 310, and are conveyed forward at a uniform speed by the conveyor belt 340.

[0078] At the same time, the drive unit 530 and the electromagnet 610 are energized and started synchronously. The upper end of the electromagnet 610 and the first fixed magnet 620 are attracted by opposite poles, generating a downward attraction force, which overcomes the upward pull of the second spring 840 and drives the sliding frame 430 to slide stably downward along the slide groove 420. At the same time, the lower end of the electromagnet 610 and the second fixed magnet 640 in the movable groove 630 are repelled by the same poles, pushing the second fixed magnet 640 to slide. Simultaneously, the push rod 760 pushes the limit plates 730 on both sides to flip outward and extend, so that the limit plates 730 are locked into the slots 740 inclined at the bottom of the sliding frame 430.

[0079] Because the limiting plate 730 and the slot 740 have an inclined ratchet-type engagement structure, the sliding frame 430 can smoothly pass over the limiting plate 730 during its descent. After it reaches the bottom, the limiting plate 730 immediately locks the slot 740, forming a one-way lock and restricting the sliding frame 430 from moving upward. At this time, the separating block 820 moves down with the sliding frame 430 to the bottom of the separating cylinder 810. The second spring 840 is further stretched and stored, and the sliding frame 430 is firmly positioned at the preset cutting position. The driving component 530 drives the driving shaft 510 to rotate continuously, so that the rotating cutter 520 rotates at high speed and stably. The blade corresponds to the cutting groove 330 of the conveyor frame 310 to complete the continuous fixed-length cutting of the buckwheat noodles that are moving at a uniform speed. The cutting process is stable, without shaking or floating up and down, effectively ensuring that the cut surface is flat and the length is consistent.

[0080] When the equipment stops and the cutting operation is stopped, the drive component 530 and the electromagnet 610 are de-energized simultaneously. The electromagnet 610 is instantly demagnetized, losing its attraction to the first fixed magnet 620 and its repulsion to the second fixed magnet 640. The limiting plate 730 retracts into the limiting cavity 710 under the pull of the first spring 750, releasing the locking of the sliding frame 430.

[0081] At this moment, the second spring 840, which is in the energy storage state, releases its elastic potential energy instantly, quickly pulling the separating block 820 upward. Through the separating rod 830, it drives the sliding frame 430 to be lifted rapidly as a whole, so that the rotating cutter 520 can quickly separate from the conveyor belt 340 and the buckwheat noodle conveying area.

[0082] At this time, the drive unit 530 and the rotary cutter 520 are still in a state of inertial deceleration due to rotational inertia. However, since the cutter has been quickly lifted away from the material surface, the cutter and buckwheat flour are completely isolated in space, which completely avoids defects such as miscutting, strips of different lengths, oblique cuts and broken flour caused by inertial idling. Until the cutter stops completely, the equipment returns to the initial standby state.

[0083] The power supply and control of the electrical equipment in this application are all existing technologies and will not be elaborated upon here. The control of each component can be achieved using a PLC controller disclosed in the prior art, and the model and circuit connection of each component are not specifically limited. All electrical equipment involved are existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve improvements to the software and methods.

[0084] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0085] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-screw self-cooking buckwheat noodle extrusion molding device, comprising a base, a twin-screw extrusion body mounted on the base, and a feed cylinder and a discharge die respectively provided at both ends of the twin-screw extrusion body, characterized in that: Also includes: Equipment frame, conveyor section, cutting assembly, magnetic suction assembly, elastic separation assembly, and limit assembly; The inner wall of the equipment rack has two sets of vertical sliding grooves symmetrically opened on both sides, and a sliding frame is slidably arranged in the sliding groove; The conveying section is mounted on the base and positioned opposite the discharge die head, and is used to convey buckwheat noodles after extrusion molding. The cutting assembly is mounted on the sliding frame and can work with the conveying unit to perform periodic cutting operations on buckwheat noodles; The magnetic suction component is installed between the equipment frame and the sliding frame. When the cutting component is powered on, the magnetic suction component is powered on simultaneously. The magnetic force generated attracts the sliding frame to descend, allowing the cutting component to reach the cutting position. When the cutting component is powered off, the magnetic suction component is powered off simultaneously. The sliding frame moves upward under the elastic force of the elastic separation component and separates from the conveying part. The elastic separation component is disposed on the top of the equipment rack and fixedly connected to the sliding frame, and is used to provide an elastic driving force for the sliding frame to separate upwards; The limiting component is disposed between the equipment frame and the sliding frame. When the magnetic attraction component is energized to generate magnetic force, the magnetic force synchronously drives the limiting component to act on the sliding frame. When the sliding frame moves to the cutting position of the cutting component, the limiting component constrains the position of the sliding frame.

2. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 1, characterized in that, The conveying unit includes two sets of conveying frames symmetrically installed on the top of the base. Multiple conveying rollers are rotatably arranged at one end of the conveying frame near the discharge die head. The conveying frame is provided with cutting grooves corresponding to the conveying rollers. A conveyor belt is provided on the side of the conveying frame opposite to the conveying rollers.

3. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 1, characterized in that, The bottom and side walls of the equipment frame are respectively equipped with a fixed seat and a support frame, which are fixedly connected to the conveyor frame.

4. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 2, characterized in that, The cutting assembly includes a drive shaft rotatably disposed in the middle of the sliding frame, a rotating cutter facing the cutting groove at the end of the drive shaft, a drive component mounted on the sliding frame, and the output end of the drive component being fixedly connected to the drive shaft.

5. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 4, characterized in that, The magnetic attraction assembly includes an electromagnet installed on the bottom wall of the equipment frame. A first fixed magnet corresponding to the electromagnet is installed at the bottom of the sliding frame. When the electromagnet is energized, its magnetic poles are opposite to those of the first fixed magnet. The electromagnet is electrically connected to the driving component.

6. The double-helix self-cooking buckwheat noodle extrusion molding device according to claim 5, characterized in that, The elastic separation assembly includes two sets of separation cylinders symmetrically installed on the top wall of the equipment frame. A separation block is slidably disposed inside the separation cylinder. A separation pull rod is installed at the bottom of the separation block, extending out of the separation cylinder and fixedly connected to the top of the sliding frame. A second spring is disposed between the top wall of the separation cylinder and the separation block.

7. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 6, characterized in that, The limiting component includes limiting cavities symmetrically opened on the inner walls of both sides of the equipment frame. A rotating shaft is rotatably arranged in the limiting cavity, and a limiting plate is installed on the rotating shaft. The bottom sides of the sliding frame are provided with slots that are adapted to the limiting plate. A first spring is provided between the limiting plate and the inner wall of the limiting cavity. One end of the push rod is hinged to the bottom of the limiting plate.

8. The double-helix self-cooking buckwheat noodle extrusion forming device according to claim 7, characterized in that, The magnetic attraction assembly also includes movable slots on both sides of the bottom of the equipment frame. A second fixed magnet is slidably disposed in the movable slot and hinged to the other end of the push rod. The electromagnet extends horizontally into the bottom of the movable slot. When the electromagnet is energized, it has the same magnetic pole as the second fixed magnet.

9. The double-helix self-cooking buckwheat noodle extrusion molding device according to claim 1, characterized in that, It also includes a buffer assembly, which includes a buffer cylinder installed on the top wall of the equipment rack, a buffer block slidably disposed inside the buffer cylinder, a buffer rod extending out of the buffer cylinder installed at the bottom of the buffer block, a buffer plate installed at the bottom end of the buffer rod, and a telescopic damping rod and a third spring disposed between the top wall of the buffer cylinder and the buffer block.

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