Adjustable rice flour extrusion mechanism and method of use thereof

Abstract

This invention relates to the field of food processing equipment, and in particular to an adjustable rice noodle extrusion mechanism and its usage method. The mechanism includes an extrusion frame with two support rails fixedly connected to its outer side. The invention utilizes an electric cylinder, a support base, and an extrusion tube to allow the extrusion tube to move up and down relative to the conveyor belt, thereby changing the gap between the outlet end of the extrusion tube and the conveyor belt. This device can adjust the extrusion gap according to the viscosity fluctuations of the rice noodle slurry and the required diameter of different rice noodles, solving the problem of poor adaptability to different process conditions caused by the fixed gap in existing equipment. By setting a moving motor, drive gear, guide rack, and support slide, the extrusion tube can move along the support rails as a whole. This device allows for continuous extrusion during the extrusion process, preventing slurry from accumulating at the outlet and causing thick edges or adhesion, and solving the problem of rough surface and uneven thickness of rice noodles caused by a fixed extrusion die.

Description

Technical Field

[0001] This invention relates to the field of food processing equipment, and in particular to an adjustable rice noodle extrusion mechanism and its usage method. Background Technology

[0002] Rice noodle extrusion equipment is the core equipment in the rice noodle production line. Its function is to continuously extrude the gelatinized rice noodle slurry into strip-shaped rice noodles through the extrusion die, and further shape, age, and loosen the noodles. In the actual production process, due to the viscosity fluctuation of the rice noodle slurry, the processing tolerance of the extrusion die, the instability of the feeding pressure, and the difference in the fluidity of the rice noodle substrate (such as aged rice slurry and fresh rice slurry), the extruded rice noodles are prone to uneven diameter, rough surface, thick edges, or sticking, which seriously affect the quality of the finished product and the consistency of the subsequent drying process.

[0003] The extrusion die and scraper of existing rice noodle extrusion machines are mostly installed at a fixed angle, which cannot be flexibly adjusted according to different rice noodle varieties, different rice noodle diameter requirements, and different batches of slurry viscosity. This results in poor adaptability of the equipment to different process conditions, frequent die replacement or manual adjustment is time-consuming and labor-intensive, and production efficiency is low. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable rice noodle extrusion mechanism and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable rice noodle extrusion mechanism and its usage method, comprising an extrusion frame, a support rail fixedly connected to the outer side of the extrusion frame, two support rails being provided in total, the two support rails being symmetrically fixedly arranged on the front and rear sides of the extrusion frame, a support slide and a connecting frame being installed on the outer side of the support rail, a support stand being fixedly connected to the top surface of the connecting frame, an electric cylinder being fixedly connected inside the longitudinal groove of the support stand, a support base being fixedly connected to the bottom end of the electric cylinder, a storage tank being fixedly connected to the top surface of the support base, the storage tank being used to temporarily store rice noodle slurry, an extrusion tube being fixedly connected in a linear array to the bottom surface of the support base, a feed pipe being fixedly connected to the top surface of the storage tank, and a return pipe being fixedly connected to the front end of the storage tank.

[0006] Furthermore, guide grooves are provided at both the top and bottom of the support rail. The guide grooves are used to support the movement of the slide block. The support slide block is fixedly connected to the connecting frame. A guide rack is fixedly connected to the side of the support rail away from the extrusion frame.

[0007] Furthermore, a movable motor is fixedly connected to the top surface of the support slide, and a drive gear is installed on the bottom output shaft of the movable motor. The drive gear meshes with the guide rack for transmission, and the movable motor and the drive gear together form a displacement drive structure for the connecting frame.

[0008] Furthermore, a detection frame is fixedly connected to the outside of the extrusion frame. The detection frame is a U-shaped structure with a one-way opening at the bottom. A thickness detector is fixedly connected in a linear array on the bottom surface of the detection frame. The thickness detector is used to monitor the thickness of the extruded rice noodles.

[0009] Furthermore, a connecting arm is fixedly connected to one end of the support base. There are two connecting arms in total. The two connecting arms are symmetrically fixed on the front and rear sides of the left end face of the support base. A steering motor is installed at the front end of the connecting arm located on the front side.

[0010] Furthermore, a connecting plate is rotatably connected to the inner side of the two connecting arms, and the steering motor is used to drive the connecting plate to rotate. A scraper is fixedly connected to one end of the connecting plate. The scraper is inclined and is used to scrape off excess rice flour.

[0011] Furthermore, a buffer tube is fixedly connected to the top surface of the connecting plate, and a feed inlet is provided at one end of the buffer tube. The feed inlet is matched with the scraper and is used to supply the scraped rice flour material into the interior of the buffer tube.

[0012] Furthermore, a feeding motor is fixedly connected to the front end of the buffer tube, and a spiral feeding rod is installed on the rear output shaft of the feeding motor. The spiral feeding rod has a spiral structure, and the feeding motor and the spiral feeding rod together form a residual material recovery structure. A return branch pipe is fixedly connected to the bottom end of the buffer tube, and the return branch pipe is connected to the return pipe.

[0013] Furthermore, two conveying rollers are rotatably connected to the inner linear array of the extrusion frame, and a conveyor belt is installed on the outer side of the conveying rollers. A conveying motor is fixedly connected to the front end of the extrusion frame, and the rear output shaft of the conveying motor is connected to the conveying rollers. Two support feet are symmetrically fixedly connected to the bottom surface of the extrusion frame, and two reinforcing beams are symmetrically fixedly connected to the inner side of the support feet. The reinforcing beams and the support feet together form a support structure for the extrusion frame.

[0014] This invention discloses a method for using an adjustable rice noodle extrusion mechanism, comprising the following steps:

[0015] S1. Rice flour slurry is fed into a storage tank through the feed pipe for temporary storage. The slurry in the storage tank continuously enters the multiple extrusion tubes fixedly connected in a linear array at its bottom. The electric cylinder is activated, and it extends downward along the longitudinal groove inside the support frame, pushing the support base down as a whole. The support base drives the extrusion tubes to move downward synchronously, so that the outlet end of the extrusion tubes gradually approaches the upper surface of the conveyor belt. When the required gap is formed between the outlet of the extrusion tube and the conveyor belt, the electric cylinder stops and maintains this position.

[0016] S2. Start the moving motor. The drive gear on the output shaft of the moving motor meshes with the guide rack fixed on the side of the support rail, driving the support slide to slide along the guide groove on the support rail. The support slide drives the connecting frame, support frame, electric cylinder, support base and all extrusion tubes to move horizontally along the length of the conveyor belt. During the movement, the rice noodle slurry in the storage tank is continuously extruded downward through the extrusion tube. After leaving the outlet of the extrusion tube, the slurry falls onto the surface of the conveyor belt to form strip-shaped rice noodles. At the same time, start the conveyor motor. The conveyor motor drives the conveyor roller to rotate. The conveyor roller drives the conveyor belt to rotate, conveying the extruded rice noodles forward.

[0017] S3. When the rice noodles pass under the inspection frame with the conveyor belt, the thickness detector fixed on the bottom surface of the inspection frame monitors the thickness of the rice noodles; based on the thickness signal obtained by the thickness detector, the extension of the electric cylinder is adjusted to change the gap between the extrusion tube outlet and the conveyor belt, so as to correct the thickness of the rice noodles.

[0018] S4. Start the steering motor. The steering motor drives the connecting plate, which is rotatably connected to the inner side of the two connecting arms, to rotate. The connecting plate drives the scraper plate, which is fixedly connected to one end, to rotate to the working position, so that the edge of the scraper plate contacts the outlet end of the extrusion tube. As the extrusion tube moves as a whole, the scraper plate scrapes off the excess rice flour at the outlet of the extrusion tube. The scraped rice flour is guided by the scraper plate to the feed inlet and enters the buffer tube for temporary storage. Start the feeding motor. The feeding motor drives the spiral feeding rod on its rear output shaft to rotate inside the buffer tube. The spiral feeding rod pushes the rice flour in the buffer tube to the return branch pipe. The rice flour enters the return pipe through the return branch pipe and is then sent back to the storage tank.

[0019] S5. When it is necessary to change the scraping angle or stop scraping, the steering motor drives the connecting plate in the opposite direction, so that the scraping plate is disengaged from the extrusion tube. During the entire extrusion process, the support feet at the bottom of the extrusion frame and the reinforcing beam together provide support for the whole machine. The conveyor belt runs continuously to send the extruded rice noodles to the subsequent process.

[0020] The present invention has the following beneficial effects:

[0021] 1. Compared with existing technologies, by setting up an electric cylinder, support base, and extrusion tube, the extrusion tube can be raised and lowered relative to the conveyor belt, thereby changing the gap between the outlet end of the extrusion tube and the conveyor belt. This device can adjust the extrusion gap according to the viscosity fluctuation of the rice noodle slurry and the diameter requirements of different rice noodles, solving the problem of poor adaptability to different process conditions caused by the fixed gap of existing equipment. By setting up a moving motor, drive gear, guide rack, and support slide, the extrusion tube can move as a whole along the support rail. This device can continuously move and extrude during the extrusion process, avoiding the accumulation of slurry at the outlet to produce thick edges or adhesion, and solving the problem of rough surface and uneven thickness of rice noodles caused by the fixed extrusion die.

[0022] 2. Compared with existing technologies, by setting up a steering motor, connecting plate, and scraper, the scraper can rotate to or away from the working position as needed. This device can flexibly adjust the scraping angle and timing according to the rice noodle type and slurry viscosity, solving the problem that the fixed installation of existing scrapers cannot adapt to changes in different batches of slurry. By setting up a buffer pipe, spiral feeding rod, and return branch pipe connected to the return pipe, the scraped excess rice noodle material can be automatically sent back to the storage tank. This device can realize online recycling of residual material, solving the problem of time-consuming and labor-intensive manual cleaning of residual material and causing raw material waste.

[0023] 3. Compared with existing technologies, by setting a thickness detector on the detection frame, the thickness of the extruded rice noodles is monitored in real time during the conveying process. This device can provide feedback for subsequent adjustment of the electric cylinder's lifting and lowering, solving the problem of not being able to detect and correct the diameter deviation of the rice noodles in time. By setting the conveying roller and conveyor belt to move in coordination with the extrusion tube, the extruded rice noodles are continuously conveyed forward and kept synchronized with the extrusion action. This device can ensure that the rice noodles remain straight and evenly distributed during the extrusion process, solving the problem of rice noodles twisting or overlapping caused by the asynchronous extrusion and conveying. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall front view structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall top-side view of the present invention;

[0026] Figure 3 This is a schematic diagram of the combined structure of the buffer tube and the spiral feed rod of the present invention;

[0027] Figure 4 This is a schematic diagram of the combined structure of the support base and the extrusion tube of the present invention;

[0028] Figure 5 This is a schematic diagram of the combined structure of the support rail and the support slide of the present invention;

[0029] Figure 6 This is a schematic diagram of the left-side structure of the present invention;

[0030] Figure 7 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0031] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B.

[0032] Legend:

[0033] 1. Extrusion machine frame; 101. Support leg; 1011. Reinforcing beam; 2. Conveyor roller; 201. Conveyor belt; 2011. Conveyor motor; 3. Detection frame; 301. Thickness detector; 4. Support rail; 401. Guide groove; 4011. Guide rack; 5. Connecting frame; 501. Support slide; 5011. Moving motor; 5012. Drive gear; 6. Support stand; 601. Electric cylinder; 6011. Support base; 6012. Storage tank; 6013. Feed pipe; 6014. Extrusion tube; 6015. Return pipe; 7. Connecting arm; 701. Steering motor; 7011. Connecting plate; 7012. Scraper; 7013. Buffer tube; 7014. Feed inlet; 7015. Feeding motor; 7016. Spiral feed rod; 7017. Return branch pipe. Detailed Implementation

[0034] Reference Figure 1 - Figure 8 The present invention provides an adjustable rice noodle extrusion mechanism and its usage method: it includes an extrusion frame 1, with a support rail 4 fixedly connected to the outer side of the extrusion frame 1. There are two support rails 4, which are symmetrically fixedly arranged on the front and rear sides of the extrusion frame 1. A support slide 501 and a connecting frame 5 are installed on the outer side of the support rail 4. A support stand 6 is fixedly connected to the top surface of the connecting frame 5. An electric cylinder 601 is fixedly connected inside the longitudinal groove of the support stand 6. A support base 6011 is fixedly connected to the bottom end of the electric cylinder 601. A storage tank 6012 is fixedly connected to the top surface of the support base 6011. The storage tank 6012 is used to temporarily store rice noodle slurry. An extrusion tube 6014 is fixedly connected in a linear array to the bottom surface of the support base 6011. A feed pipe 6013 is fixedly connected to the top surface of the storage tank 6012. A return pipe 6015 is fixedly connected to the front end of the storage tank 6012.

[0035] The support rail 4 has guide grooves 401 at both the top and bottom. The guide grooves 401 are used to support the movement of the slide 501. The support slide 501 is fixedly connected to the connecting frame 5. A guide rack 4011 is fixedly connected to the side of the support rail 4 away from the extrusion frame 1.

[0036] Among them, a moving motor 5011 is fixedly connected to the top surface of the support slide 501, and a drive gear 5012 is installed on the bottom output shaft of the moving motor 5011. The drive gear 5012 meshes with the guide rack 4011 for transmission. The moving motor 5011 and the drive gear 5012 together form a displacement drive structure for the connecting frame 5.

[0037] Among them, a detection frame 3 is fixedly connected to the outside of the extrusion frame 1. The detection frame 3 is a U-shaped structure with a one-way opening at the bottom. A thickness detector 301 is fixedly connected in a linear array on the bottom surface of the detection frame 3. The thickness detector 301 is used to monitor the thickness of the extruded rice noodles.

[0038] One end of the support base 6011 is fixedly connected to a connecting arm 7. There are two connecting arms 7 in total. The two connecting arms 7 are symmetrically fixed on the front and rear sides of the left end face of the support base 6011. The front end of the connecting arm 7 on the front side is equipped with a steering motor 701.

[0039] Among them, the inner sides of the two connecting arms 7 are rotatably connected to the connecting plate 7011, the steering motor 701 is used to drive the connecting plate 7011 to rotate, and one end of the connecting plate 7011 is fixedly connected to the scraper 7012. The scraper 7012 is inclined and is used to scrape off excess rice flour.

[0040] Among them, a buffer tube 7013 is fixedly connected to the top surface of the connecting plate 7011. One end of the buffer tube 7013 is provided with a feed port 7014. The feed port 7014 is matched with the scraper 7012. The feed port 7014 is used to supply the scraped rice flour into the interior of the buffer tube 7013.

[0041] The buffer tube 7013 is fixedly connected to the front end of a feeding motor 7015. A spiral feeding rod 7016 is installed on the rear output shaft of the feeding motor 7015. The spiral feeding rod 7016 has a spiral structure. The feeding motor 7015 and the spiral feeding rod 7016 together form a residual material recovery structure. The bottom end of the buffer tube 7013 is fixedly connected to a return branch pipe 7017, which is connected to the return pipe 6015.

[0042] The extrusion frame 1 has two conveying rollers 2 rotatably connected to its inner linear array. A conveyor belt 201 is installed on the outer side of the conveying rollers 2. A conveyor motor 2011 is fixedly connected to the front end of the extrusion frame 1. The rear output shaft of the conveyor motor 2011 is connected to the conveying rollers 2. Two support feet 101 are symmetrically fixedly connected to the bottom end face of the extrusion frame 1. Two reinforcing beams 1011 are symmetrically fixedly connected to the inner side of the support feet 101. The reinforcing beams 1011 and the support feet 101 together form a support structure for the extrusion frame 1.

[0043] This invention discloses a method for using an adjustable rice noodle extrusion mechanism, comprising the following steps:

[0044] S1. Rice flour slurry is fed into storage tank 6012 through feed pipe 6013 for temporary storage. The slurry in storage tank 6012 continuously enters the multiple extrusion tubes 6014 fixedly connected in a linear array at its bottom. Electric cylinder 601 is activated. Electric cylinder 601 extends downward along the longitudinal groove inside the support frame 6, pushing the support base 6011 to descend as a whole. The support base 6011 drives the extrusion tubes 6014 to move downward synchronously, so that the outlet end of the extrusion tube 6014 gradually approaches the upper surface of the conveyor belt 201. When the required gap is formed between the outlet of the extrusion tube 6014 and the conveyor belt 201, electric cylinder 601 stops and maintains this position.

[0045] S2. Start the moving motor 5011. The drive gear 5012 on the output shaft of the moving motor 5011 meshes with the guide rack 4011 fixed on the side of the support rail 4, driving the support slide 501 to slide along the guide groove 401 on the support rail 4. The support slide 501 drives the connecting frame 5, the support stand 6, the electric cylinder 601, the support base 6011, and all the extrusion tubes 6014 to move horizontally along the length of the conveyor belt 201. During the movement, the rice noodle slurry in the storage tank 6012 is continuously extruded downward through the extrusion tubes 6014. After leaving the outlet of the extrusion tubes 6014, the slurry falls onto the upper surface of the conveyor belt 201 to form strip-shaped rice noodles. At the same time, start the conveyor motor 2011. The conveyor motor 2011 drives the conveyor roller 2 to rotate. The conveyor roller 2 drives the conveyor belt 201 to rotate, conveying the extruded rice noodles forward.

[0046] S3. When the rice vermicelli passes under the detection frame 3 along with the conveyor belt 201, the thickness detector 301 fixed on the bottom surface of the detection frame 3 monitors the thickness of the rice vermicelli. Based on the thickness signal obtained by the thickness detector 301, the extension amount of the electric cylinder 601 is adjusted to change the gap between the outlet of the extrusion tube 6014 and the conveyor belt 201, so as to correct the thickness of the rice vermicelli.

[0047] S4. Start the steering motor 701. The steering motor 701 drives the connecting plate 7011, which is rotatably connected to the inner side of the two connecting arms 7, to rotate. The connecting plate 7011 drives the scraper 7012, which is fixedly connected to one end, to rotate to the working position, so that the edge of the scraper 7012 contacts the outlet end of the extrusion tube 6014. As the extrusion tube 6014 moves as a whole, the scraper 7012 scrapes off the excess rice flour at the outlet of the extrusion tube 6014. The scraped-off rice flour is then processed by the scraper... The material plate 7012 is guided to the feed inlet 7014 and temporarily stored inside the buffer tube 7013; the feeding motor 7015 is started, and the feeding motor 7015 drives the spiral feeding rod 7016 on its rear output shaft to rotate inside the buffer tube 7013. The spiral feeding rod 7016 pushes the rice flour material in the buffer tube 7013 to the return branch pipe 7017. The rice flour material enters the return pipe 6015 through the return branch pipe 7017 and is then sent back to the storage tank 6012.

[0048] S5. When it is necessary to change the scraping angle or stop scraping, the steering motor 701 drives the connecting plate 7011 in the reverse direction, so that the scraper 7012 disengages from the extrusion tube 6014. During the entire extrusion process, the support foot 101 at the bottom of the extrusion frame 1 and the reinforcing beam 1011 together provide support for the whole machine. The conveyor belt 201 runs continuously to send the extruded rice vermicelli to the subsequent process.

[0049] Working principle: First, rice flour slurry is fed into storage tank 6012 via feed pipe 6013 for temporary storage. Storage tank 6012 serves as a transfer container for the slurry, and its bottom end is directly connected to multiple extrusion tubes 6014. Slurry continuously enters the extrusion tubes 6014 by gravity or external feeding pressure. Then, electric cylinder 601 is activated, extending downwards along the longitudinal groove inside the support frame 6, pushing the support base 6011 to descend as a whole. The support base 6011 drives the extrusion tubes 6014, which are arranged in a linear array on its bottom surface, to move downwards synchronously, causing the extrusion tubes 6014 to... As the outlet end of the extrusion tube 6014 gradually approaches the upper surface of the conveyor belt 201, and the required gap is formed between the outlet of the extrusion tube 6014 and the conveyor belt 201, the electric cylinder 601 stops operating and maintains this position. At the same time, the moving motor 5011 starts to run, and the drive gear 5012 on its output shaft meshes with the guide rack 4011 fixed on the side of the support rail 4. As the drive gear 5012 rotates, the support slide 501 begins to slide along the guide groove 401 on the support rail 4, driving the connecting frame 5, the support stand 6, the electric cylinder 601, and the support base 601. 1. Along with all the extrusion tubes 6014, the rice noodle slurry in the storage tank 6012 is continuously extruded downwards through the extrusion tubes 6014. After leaving the outlet of the extrusion tubes 6014, the slurry falls directly onto the upper surface of the conveyor belt 201, forming strip-shaped rice noodles. Simultaneously, the conveyor motor 2011 starts, driving the conveyor roller 2 to rotate. The conveyor roller 2 drives the conveyor belt 201 to rotate, conveying the freshly extruded rice noodles forward, achieving synchronous extrusion and conveying. When the rice noodles pass the inspection frame 3 along with the conveyor belt 201... When the rice vermicelli is below, the thickness detector 301 fixed on the bottom surface of the detection frame 3 monitors the thickness of the rice vermicelli in real time. The thickness detector 301 adopts a non-contact detection method, which can obtain the thickness signal without interfering with the movement of the rice vermicelli. If the thickness detector 301 finds that the thickness of the rice vermicelli exceeds the expected range, the system can adjust the extension of the electric cylinder 601 according to the detection result, change the gap between the outlet of the extrusion tube 6014 and the conveyor belt 201, thereby correcting the thickness of the rice vermicelli. This process realizes the dynamic adjustment of the extrusion thickness without the need for manual intervention.

[0050] During the extrusion process, excess slurry may accumulate at the outlet of the extrusion tube 6014 due to slurry viscosity or extrusion speed. To solve this problem, the operator or control system activates the steering motor 701. The steering motor 701 drives the connecting plate 7011, which is rotatably connected to the inner side of the two connecting arms 7, to rotate. The connecting plate 7011 drives the scraper 7012, which is fixedly connected to one end, to rotate. The scraper 7012 is inclined. When the scraper 7012 rotates to the working position, its edge contacts or maintains a small gap with the outlet end of the extrusion tube 6014. As the extrusion tube 6014 moves along the conveyor belt 201, the scraper 7012 scrapes away the excess rice flour at the outlet of the extrusion tube 6014, making the surface of the extruded rice noodles smoother. The scraped-off rice flour is not scattered and wasted, but is guided by the scraper 7012 to the feed inlet 7014 and enters the buffer tube 7013 for temporary storage. The feeding motor 7015 starts immediately, driving the spiral feeding rod 7016 on its rear output shaft to rotate inside the buffer tube 7013. The spiral feeding rod 7016 has a spiral structure, and when it rotates, it pushes the rice flour material in the buffer tube 7013 to one end, and finally pushes it to the return branch pipe 7017. The return branch pipe 7017 is connected to the return pipe 6015, and the rice flour material is sent back to the storage tank 6012 through the return pipe 6015, realizing the online recycling of excess slurry. When it is necessary to change the scraping angle or stop scraping, the steering motor 701 drives the connecting plate 7011 in the reverse direction, so that the scraper 7012 disengages from the extrusion tube 6014, and the scraping function is released. Through the cooperation of the steering motor 701 and the scraper 7012, this device can flexibly adjust the intervention time and working angle of the scraper 7012 according to the rice flour variety, slurry viscosity changes and the needs of different production stages.

[0051] Throughout the extrusion process, the conveyor belt 201 operates continuously, smoothly delivering the extruded rice noodles to subsequent processes. The support feet 101 at the bottom of the extrusion frame 1 and the reinforcing beam 1011 together form a stable support structure, ensuring that the entire machine does not shake during the moving extrusion and scraping process. The electric cylinder 601 controls the lifting of the extrusion tube 6014, the moving motor 5011 controls the horizontal movement of the extrusion tube 6014, the steering motor 701 controls the rotation of the scraper 7012, and the feeding motor 7015 controls the recovery of residual material. Each action is independent yet coordinated, enabling the extrusion tube 6014 to extrude while moving, the scraper 7012 to be adjusted when needed, and the recovery system to simultaneously send the residual material back to the storage tank 6012. The entire working process does not require manual die replacement or frequent machine stops for adjustment, and the equipment can continuously and stably complete the rice noodle extrusion operation.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable rice noodle extrusion mechanism, comprising an extrusion frame (1), characterized in that, The outer side of the extrusion frame (1) is fixedly connected to a support rail (4). There are two support rails (4), which are symmetrically fixed on the front and rear sides of the extrusion frame (1). A support slide (501) and a connecting frame (5) are installed on the outer side of the support rail (4). A support stand (6) is fixedly connected to the top surface of the connecting frame (5). An electric cylinder (601) is fixedly connected inside the longitudinal groove of the support stand (6). A support base (6011) is fixedly connected to the bottom end of the container. A storage tank (6012) is fixedly connected to the top surface of the support base (6011). The storage tank (6012) is used to temporarily store rice flour slurry. Extrusion tubes (6014) are fixedly connected in a linear array to the bottom surface of the support base (6011). A feed pipe (6013) is fixedly connected to the top surface of the storage tank (6012). A return pipe (6015) is fixedly connected to the front end of the storage tank (6012).

2. The adjustable rice noodle extrusion mechanism according to claim 1, characterized in that, The top and bottom ends of the support rail (4) are provided with guide grooves (401). The guide grooves (401) are used to support the movement of the slide (501). The support slide (501) is fixedly connected to the connecting frame (5). A guide rack (4011) is fixedly connected to the side of the support rail (4) away from the extrusion frame (1).

3. The adjustable rice noodle extrusion mechanism according to claim 1, characterized in that, A moving motor (5011) is fixedly connected to the top surface of the support slide (501). A drive gear (5012) is installed on the bottom output shaft of the moving motor (5011). The drive gear (5012) meshes with the guide rack (4011) for transmission. The moving motor (5011) and the drive gear (5012) together form a displacement drive structure for the connecting frame (5).

4. The adjustable rice noodle extrusion mechanism according to claim 1, characterized in that, A detection frame (3) is fixedly connected to the outside of the extrusion frame (1). The detection frame (3) is a U-shaped structure with a one-way opening at the bottom. A thickness detector (301) is fixedly connected in a linear array on the bottom surface of the detection frame (3). The thickness detector (301) is used to monitor the thickness of the extruded rice noodles.

5. The adjustable rice noodle extrusion mechanism according to claim 1, characterized in that, One end of the support base (6011) is fixedly connected to a connecting arm (7). There are two connecting arms (7). The two connecting arms (7) are symmetrically fixed on the front and rear sides of the left end face of the support base (6011). The front end of the connecting arm (7) located on the front side is equipped with a steering motor (701).

6. The adjustable rice noodle extrusion mechanism according to claim 5, characterized in that, A connecting plate (7011) is rotatably connected to the inner side of the two connecting arms (7). The steering motor (701) is used to drive the connecting plate (7011) to rotate. A scraper (7012) is fixedly connected to one end of the connecting plate (7011). The scraper (7012) is inclined and is used to scrape off excess rice flour.

7. The adjustable rice noodle extrusion mechanism according to claim 6, characterized in that, A buffer tube (7013) is fixedly connected to the top surface of the connecting plate (7011). One end of the buffer tube (7013) is provided with a feed inlet (7014). The feed inlet (7014) is matched with the scraper (7012). The feed inlet (7014) is used to supply the scraped rice flour material into the interior of the buffer tube (7013).

8. The adjustable rice noodle extrusion mechanism according to claim 7, characterized in that, The front end of the buffer tube (7013) is fixedly connected to a feeding motor (7015). A spiral feeding rod (7016) is installed on the rear output shaft of the feeding motor (7015). The spiral feeding rod (7016) has a spiral structure. The feeding motor (7015) and the spiral feeding rod (7016) together form a residual material recovery structure. The bottom end of the buffer tube (7013) is fixedly connected to a return branch pipe (7017). The return branch pipe (7017) is connected to the return pipe (6015).

9. The adjustable rice noodle extrusion mechanism according to claim 1, characterized in that, The inner side of the extrusion frame (1) has two conveying rollers (2) rotatably connected in a linear array. A conveyor belt (201) is installed on the outer side of the conveying rollers (2). A conveying motor (2011) is fixedly connected to the front end of the extrusion frame (1). The rear output shaft of the conveying motor (2011) is connected to the conveying rollers (2). Two support feet (101) are symmetrically fixedly connected to the bottom end face of the extrusion frame (1). Two reinforcing beams (1011) are symmetrically fixedly connected to the inner side of the support feet (101). The reinforcing beams (1011) and the support feet (101) together form a support structure for the extrusion frame (1).

10. A method of using an adjustable rice noodle extrusion mechanism according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Rice flour slurry is fed into storage tank (6012) through feed pipe (6013) for temporary storage. The slurry in storage tank (6012) continuously enters the interior of multiple extrusion tubes (6014) fixedly connected in a linear array at its bottom. Electric cylinder (601) is started. Electric cylinder (601) extends downward along the longitudinal groove inside the support frame (6) and pushes the support base (6011) to descend as a whole. The support base (6011) drives the extrusion tubes (6014) to move downward synchronously, so that the outlet end of the extrusion tube (6014) gradually approaches the upper surface of the conveyor belt (201). When the required gap is formed between the outlet of the extrusion tube (6014) and the conveyor belt (201), electric cylinder (601) stops and maintains this position. S2. Start the moving motor (5011). The drive gear (5012) on the output shaft of the moving motor (5011) meshes with the guide rack (4011) fixed on the side of the support rail (4), driving the support slide (501) to slide along the guide groove (401) on the support rail (4). The support slide (501) drives the connecting frame (5), the support stand (6), the electric cylinder (601), the support base (6011), and all the extrusion tubes (6014) to move together along the conveyor belt. The belt (201) moves horizontally along its length. During the movement, the rice noodle slurry in the storage tank (6012) is continuously extruded downward through the extrusion tube (6014). After leaving the outlet of the extrusion tube (6014), the slurry falls onto the upper surface of the conveyor belt (201) to form strip-shaped rice noodles. At the same time, the conveyor motor (2011) is started. The conveyor motor (2011) drives the conveyor roller (2) to rotate. The conveyor roller (2) drives the conveyor belt (201) to run, conveying the extruded rice noodles forward. S3. When the rice vermicelli passes under the detection frame (3) along the conveyor belt (201), the thickness detector (301) fixed on the bottom surface of the detection frame (3) monitors the thickness of the rice vermicelli. Based on the thickness signal obtained by the thickness detector (301), the extension of the electric cylinder (601) is adjusted to change the gap between the outlet of the extrusion tube (6014) and the conveyor belt (201) in order to correct the thickness of the rice vermicelli. S4. Start the steering motor (701). The steering motor (701) drives the connecting plate (7011) rotatably connected to the inner side of the two connecting arms (7) to rotate. The connecting plate (7011) drives the scraper (7012) fixedly connected to one end to rotate to the working position, so that the edge of the scraper (7012) contacts the outlet end of the extrusion tube (6014). As the extrusion tube (6014) moves as a whole, the scraper (7012) scrapes off the excess rice flour at the outlet of the extrusion tube (6014). The scraped rice flour passes through the scraper. (7012) is guided to the feed inlet (7014) and temporarily stored inside the buffer tube (7013); the feeding motor (7015) is started, and the feeding motor (7015) drives the spiral feeding rod (7016) on its rear output shaft to rotate inside the buffer tube (7013). The spiral feeding rod (7016) pushes the rice flour material in the buffer tube (7013) to the return branch pipe (7017). The rice flour material enters the return pipe (6015) through the return branch pipe (7017) and is then sent back to the storage tank (6012); S5. When it is necessary to change the scraping angle or stop scraping, the steering motor (701) drives the connecting plate (7011) in the reverse direction, so that the scraper (7012) is disengaged from the extrusion tube (6014). During the entire extrusion process, the support feet (101) at the bottom of the extrusion frame (1) and the reinforcing beam (1011) provide support for the whole machine. The conveyor belt (201) runs continuously to send the extruded rice vermicelli to the subsequent process.

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