Powder storage and conveying equipment for rice powder processing

Abstract

The present application relates to powder conveying equipment technical field, particularly to a kind of powder storage conveying equipment for rice flour processing, including rigid straight pipe, flexible elbow and adjusting assembly, rigid straight pipe at least two sections, one end of one section rigid straight pipe is fixedly connected with the rice powder outlet of storage container.The present application is provided with adjusting assembly, after every interval preset length, adjusting assembly makes flexible elbow relative to rigid straight pipe forward sliding preset distance along the rice powder conveying direction then resets.In the process that flexible elbow relative to rigid straight pipe forward sliding along the rice powder conveying direction, the movement of flexible elbow makes relative shearing motion between pipe wall and the rice powder that is accumulated and blocked, to destroy the adhesion connection between rice powder and the interface of flexible elbow pipe wall, so that the flowability of rice powder is recovered, to realize the automatic deblocking under the condition of material accumulation and blockage in flexible elbow.

Description

Technical Field

[0001] This invention relates to the field of powder conveying equipment technology, and in particular to a powder storage and conveying equipment for rice noodle processing. Background Technology

[0002] Rice noodles are a type of powdered material, and they are typically transported using pneumatic conveying systems. This involves using airflow generated by a fan to carry the powdered rice noodles through sealed pipes, transporting them from one location to another. The advantages of this system are that the sealed pipes prevent dust from escaping, ensuring good hygiene. Furthermore, pneumatic conveying pipes can be flexibly arranged, horizontally, vertically, and even in bends.

[0003] However, existing pneumatic conveying equipment still has some defects in use: at pipe bends, especially 90-degree bends, rice noodle powder collides with each other, easily forming clumps or even blockages, affecting the normal operation of the pneumatic rice noodle conveying equipment. Summary of the Invention

[0004] Therefore, it is necessary to provide a powder storage and conveying device for rice noodle processing to address the problems existing in current pneumatic conveying equipment, and to solve the problem that the pipe bends are prone to blockage when conveying rice noodles in existing pneumatic conveying equipment.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A powder storage and conveying device for rice noodle processing is used to convey rice noodles from a storage container to a processing device. The powder storage and conveying device for rice noodle processing includes:

[0007] The rigid straight pipe has at least two sections. One end of the rigid straight pipe is fixedly connected to the rice noodle outlet of the storage container, and the other end of the rigid straight pipe is fixedly connected to the rice noodle inlet of the processing equipment.

[0008] The flexible bend has at least one section, and both ends of the flexible bend are sealed and fitted on the outer circumferential surface of the rigid straight pipe, and the flexible bend and the rigid straight pipe have an overlapping area in the length direction.

[0009] The adjustment component allows the flexible bend to slide forward a preset distance relative to the rigid straight pipe along the rice noodle conveying direction before resetting.

[0010] Preferably, the adjustment assembly includes a first fixed ring, a second fixed ring, and a cylinder. The first fixed ring is disposed on the outer circumferential surface of the rigid straight pipe, the second fixed ring is disposed on the outer circumferential surface of the flexible bent pipe, and there are at least two cylinders, which are equally spaced around the axis of the first fixed ring. The fixed end of the cylinder is disposed on the first fixed ring, and the movable end is disposed on the second fixed ring.

[0011] After each preset time interval, the cylinder causes the flexible bend to slide forward a preset distance relative to the rigid straight pipe along the rice noodle conveying direction before resetting.

[0012] Preferably, the adjusting assembly includes a first fixing ring, a second fixing ring, and screws. The first fixing ring is disposed on the outer circumferential surface of the rigid straight pipe, the second fixing ring is disposed on the outer circumferential surface of the flexible bent pipe, and there are at least two screws, which are equally spaced around the axis of the first fixing ring. One end of the screw is rotatably connected to the first fixing ring, and the other end is threadedly connected to the second fixing ring.

[0013] Preferably, a nut is provided at the end of the screw away from the first retaining ring.

[0014] Preferably, a powder storage and conveying device for rice noodle processing further includes a pneumatic control component for controlling the positive pressure in the overlapping area of ​​the rigid straight pipe and the flexible bend.

[0015] When the adjusting component causes the flexible bend to slide forward relative to the rigid straight pipe along the material conveying direction, the pneumatic control component controls the positive pressure of the rigid straight pipe and the flexible bend in the overlapping area to decrease to a first preset value.

[0016] When the flexible bend stops sliding relative to the rigid straight pipe, the pneumatic control component controls the positive pressure of the rigid straight pipe and the flexible bend in the overlapping area to increase to a second preset value.

[0017] The second preset value is greater than the first preset value.

[0018] Preferably, the flexible bend is a transparent tube.

[0019] Preferably, the flexible bend is either a semi-transparent tube or a non-transparent tube.

[0020] Preferably, the flexible bend is made of high-performance polyurethane, with an embedded spiral steel wire as a skeleton.

[0021] Preferably, a chamfer is provided on the inner edge of the rigid straight pipe facing the flexible bend.

[0022] Preferably, the storage container is provided with an air inlet, and a pneumatic fan is fixedly connected to the air inlet for blowing the rice flour in the storage container into the powder storage and conveying equipment for rice flour processing.

[0023] The beneficial effects of this invention are:

[0024] 1. This invention includes an adjustment component that allows the flexible bend to slide forward a preset distance relative to the rigid straight pipe along the rice noodle conveying direction before resetting. During this forward sliding, the flexible bend causes relative shearing motion between the pipe wall and the accumulated rice noodles, disrupting the adhesive bond between the rice noodles and the flexible bend's wall. Simultaneously, the elastic deformation of the flexible bend introduces an uneven stress field within the accumulated rice noodles, causing the internal force chains of the material to break. This gradually transforms the bulky material into a loose state, restoring the flowability of the rice noodles and achieving automatic unblocking in cases of material accumulation within the flexible bend.

[0025] 2. The present invention includes an adjustment component, which allows the flexible bend to slide forward along the material conveying direction. During the forward sliding process of the flexible bend, the wear concentration area of ​​the flexible bend is changed, which helps to reduce the wear of the flexible bend and extend its service life.

[0026] 3. The present invention is provided with an adjustment component, which can adjust the diameter of the flexible bend tube according to the fineness of the rice noodles being conveyed, so as to adapt to the fineness of the rice noodles. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a first embodiment of a powder storage and conveying device for rice noodle processing according to the present invention;

[0028] Figure 2 This is a schematic diagram of the connection structure of the adjusting component in a powder storage and conveying device for rice noodle processing according to the present invention;

[0029] Figure 3 for Figure 2 A sectional view;

[0030] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0031] Figure 5 This is a perspective view of a first embodiment of a powder storage and conveying device for rice noodle processing according to the present invention;

[0032] Figure 6 This is a perspective view of a second embodiment of a powder storage and conveying device for rice noodle processing according to the present invention.

[0033] in:

[0034] 100. Storage container; 110. Air inlet;

[0035] 200. Processing equipment;

[0036] 310. Rigid straight pipe; 311. Chamfer; 320. Flexible bend; 330. Rigid support rod;

[0037] 400. Adjusting assembly; 410. First retaining ring; 420. Second retaining ring; 430. Cylinder; 440. Screw; 450. Nut;

[0038] 500. Air pressure control assembly; 510. Air supply pipe; 520. Annular airbag;

[0039] 600. Pneumatic blower. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] like Figures 1 to 6 As shown, a powder storage and conveying device for rice noodle processing is used to convey rice noodles from a storage container 100 to a processing device 200. It should be noted that... Figure 1 The material outlet at the bottom of storage container 100 is shown.

[0044] Specifically, such as Figure 1 As shown, the storage container 100 is provided with an air inlet 110, and a pneumatic blower 600 is fixedly connected to the air inlet 110. The pneumatic blower 600 is used to blow the rice noodles in the storage container 100 into the powder storage and conveying equipment for rice noodle processing.

[0045] The powder storage and conveying equipment for rice noodle processing includes a rigid straight pipe 310, a flexible bend pipe 320, and an adjusting component 400. The rigid straight pipe 310 has at least two sections. One end of one section of the rigid straight pipe 310 is fixedly connected to the rice noodle outlet of the storage container 100, and one end of the other section of the rigid straight pipe 310 is fixedly connected to the rice noodle inlet of the processing equipment 200. The flexible bend pipe 320 has at least one section, and both ends of the flexible bend pipe 320 are sealed and fitted on the outer circumferential surface of the rigid straight pipe 310. The flexible bend pipe 320 and the rigid straight pipe 310 have an overlapping area in the length direction. The adjusting component 400 causes the flexible bend pipe 320 to slide forward a preset distance relative to the rigid straight pipe 310 along the rice noodle conveying direction and then reset.

[0046] When conveying rice noodles, start the pneumatic blower 600. The pneumatic blower 600 causes air to enter the storage container 100 through the air inlet 110 and blows the rice noodles in the storage container 100 into the rigid straight pipe 310 connected to it. Then, the rice noodles enter the processing equipment 200 through the pipeline composed of the rigid straight pipe 310 and the flexible bend pipe 320.

[0047] During the rice noodle conveying process, when the rice noodles are carried by the air to the location of the flexible bend 320 (especially when the flexible bend 320 is at a 90-degree angle), the rice noodles cannot follow the airflow to turn synchronously due to their own inertia. Instead, they hit the side wall of the flexible bend 320 at a high speed. At this time, the rice noodles lose kinetic energy, which makes them easy to clump together on the wall of the flexible bend 320. After a long period of accumulation, the flexible bend 320 is easily blocked.

[0048] To address this issue, the present invention incorporates an adjustment component 400. This component allows the flexible bend 320 to slide forward a predetermined distance relative to the rigid straight pipe 310 along the rice noodle conveying direction, and then return to its original position. During this forward sliding, the flexible bend 320 causes relative shearing motion between the pipe wall and the accumulated rice noodles, disrupting the adhesive bond between the rice noodles and the pipe wall. Simultaneously, the elastic deformation of the flexible bend 320 introduces an uneven stress field within the accumulated rice noodles, causing the internal force chains of the material to break. This gradually transforms the bulky material into a loose state, restoring the flowability of the rice noodles and thus achieving automatic unblocking in cases of material accumulation within the flexible bend 320.

[0049] It should also be noted that as the flexible bend 320 slides forward along the material conveying direction, the wear concentration area of ​​the flexible bend 320 is changed, which helps to reduce the wear of the flexible bend 320 and extend its service life.

[0050] In a further embodiment, such as Figures 1-5 As shown, the adjustment assembly 400 includes a first fixing ring 410, a second fixing ring 420, and a cylinder 430. The first fixing ring 410 is disposed on the outer circumferential surface of the rigid straight tube 310, and the second fixing ring 420 is disposed on the outer circumferential surface of the flexible bent tube 320. There are at least two cylinders 430, which are equally spaced around the axis of the first fixing ring 410. The fixed end of the cylinder 430 is disposed on the first fixing ring 410, and the movable end is disposed on the second fixing ring 420. After a preset time interval, the cylinder 430 causes the flexible bent tube 320 to slide forward a preset distance relative to the rigid straight tube 310 along the rice noodle conveying direction and then reset.

[0051] After each preset time interval, cylinder 430 is activated. Specifically, the movable end of cylinder 430 at the rear end of flexible bend 320 extends a preset distance and then resets, while the movable end of cylinder 430 at the front end of flexible bend 320 retracts a preset distance at the same speed and then resets, thereby causing flexible bend 320 to slide forward a preset distance relative to rigid straight pipe 310 along the rice noodle conveying direction and reset.

[0052] It is understandable that the fineness of rice noodles varies, resulting in different adhesion abilities. Finer rice noodles have stronger adhesion and are more likely to adhere to the wall of the flexible bend 320. To reduce clogging, a larger diameter flexible bend 320 is often required. However, existing rice noodle conveying pipes are often integrally molded, with fixed diameters at bends. This invention, however, allows for adjustment of the flexible bend 320 diameter based on the fineness of the conveyed rice noodles. For example, when conveying finer rice noodles, the diameter of the flexible bend 320 can be increased. When conveying coarser rice noodles, the diameter of the flexible bend 320 can be appropriately reduced to shorten the conveying path and improve conveying efficiency.

[0053] Specifically, by extending the movable end of the cylinder 430 at the rear end of the flexible bend 320 or shortening the movable end of the cylinder 430 at the front end of the flexible bend 320, the length of the non-overlapping region between the flexible bend 320 and the rigid straight pipe 310 in the longitudinal direction increases, and the diameter of the flexible bend 320 increases accordingly. Conversely, by shortening the movable end of the cylinder 430 at the rear end of the flexible bend 320 or extending the movable end of the cylinder 430 at the front end of the flexible bend 320, the length of the non-overlapping region between the flexible bend 320 and the rigid straight pipe 310 in the longitudinal direction decreases, and the diameter of the flexible bend 320 decreases accordingly.

[0054] It should also be noted that by changing the diameter of the flexible bend 320, the part of the flexible bend 320 with the greatest degree of bending, that is, the part with concentrated wear, is also changed. This helps to reduce the wear of the flexible bend 320 and extend its service life.

[0055] In other embodiments, an electric telescopic cylinder, a hydraulic rod, or other mechanism with linear reciprocating drive function may be used to replace cylinder 430.

[0056] In a further embodiment, such as Figure 4 As shown, a chamfer 311 is provided on the inner edge of the rigid straight tube 310 facing the flexible bend 320.

[0057] As the flexible bend 320 moves forward relative to the rigid straight pipe 310 along the rice noodle conveying direction, the chamfer 311 can guide the scraped rice noodles, causing the scraped rice noodles to move radially inward and enter the rigid straight pipe 310. This is more conducive to the dispersion of rice noodles, thus improving the unblocking speed and unblocking effect.

[0058] In a further embodiment, the flexible bend 320 is made of high-performance polyurethane, with an embedded spiral steel wire as a skeleton.

[0059] The flexible bend 320's pipe body is made of high-performance polyurethane material with an embedded spiral steel wire as a skeleton. This is because polyurethane material possesses excellent wear resistance, flexibility, and chemical corrosion resistance. Its wear resistance is significantly superior to conventional rubber and plastic pipes, effectively resisting the continuous erosion and wear of rice noodles on the pipe wall during transportation, thus extending the service life of the flexible bend 320. Simultaneously, the smooth inner wall of the polyurethane material helps reduce the flow resistance of rice noodles and minimizes the adhesion and accumulation of powder on the pipe wall. The embedded spiral steel wire skeleton provides sufficient radial support strength to the flexible bend 320's pipe body, while also preventing collapse or permanent deformation when subjected to internal pressure and external extrusion loads from the transportation system, ensuring the stability of the pipeline's effective flow cross-sectional area.

[0060] Furthermore, the flexible bend 320 can be either a semi-transparent tube or a non-transparent tube.

[0061] The reason why semi-transparent or non-transparent tubes are used for flexible bend 320 is that they are cheaper than transparent tubes.

[0062] In a further embodiment, a powder storage and conveying device for rice noodle processing further includes a pneumatic control component 500 for controlling the positive pressure of the rigid straight pipe 310 and the flexible bend 320 in the overlapping area. When the adjusting component 400 causes the flexible bend 320 to slide forward relative to the rigid straight pipe 310 along the rice noodle conveying direction, the pneumatic control component 500 controls the positive pressure of the rigid straight pipe 310 and the flexible bend 320 in the overlapping area to decrease to a first preset value. When the flexible bend 320 stops sliding relative to the rigid straight pipe 310, the pneumatic control component 500 controls the positive pressure of the rigid straight pipe 310 and the flexible bend 320 in the overlapping area to increase to a second preset value, the second preset value being greater than the first preset value.

[0063] When the flexible bend 320 slides forward relative to the rigid straight pipe 310 along the material conveying direction, the pneumatic control component 500 controls the positive pressure of the rigid straight pipe 310 and the flexible bend 320 in the overlapping area to reduce to a first preset value in order to reduce the friction between the rigid straight pipe 310 and the flexible bend 320 and reduce pipe wall wear.

[0064] When the flexible bend 320 stops sliding relative to the rigid straight pipe 310 along the material conveying direction, the pneumatic control component 500 controls the positive pressure of the rigid straight pipe 310 and the flexible bend 320 in the overlapping area to increase to a second preset value in order to enhance the sealing performance and prevent rice noodles from escaping outward from the gap between the rigid straight pipe 310 and the flexible bend 320.

[0065] Specifically, the air pressure control component 500 includes an air supply pipe 510 and an annular airbag 520. The annular airbag 520 is sleeved on the overlapping end of the rigid straight pipe 310 and the flexible curved pipe 320. The air supply pipe 510 is connected to the annular airbag 520. The end of the air supply pipe 510 away from the annular airbag 520 is connected to the air source through a pressure relief valve, and the pressure relief valve is signal-linked with the cylinder 430. When the cylinder 430 is activated, the pressure relief valve lowers the pressure relief threshold, at which point the air pressure inside the annular airbag 520 drops to a first preset value. After the cylinder 430 resets, the pressure relief valve restores the pressure relief threshold, at which point the air pressure inside the annular airbag 520 returns to a second preset value.

[0066] Furthermore, in order to support and position the annular airbag 520, a rigid support rod 330 is provided on one circumferential side of the first fixing ring 410. The end of the rigid support rod 330 away from the first fixing ring 410 is provided on the annular airbag 520, so as to ensure that the annular airbag 520 is always at the port position of the rigid straight tube 310.

[0067] The difference between Embodiment 2 and Embodiment 1 lies in the specific implementation method of the adjustment component 400. Embodiment 2 provides a manual adjustment method. Specifically, as shown... Figure 6As shown, the adjustment assembly 400 of Embodiment 2 includes a first fixing ring 410, a second fixing ring 420, and a screw 440. The first fixing ring 410 is disposed on the outer circumferential surface of the rigid straight pipe 310, and the second fixing ring 420 is disposed on the outer circumferential surface of the flexible bent pipe 320. There are at least two screws 440, which are equally spaced around the axis of the first fixing ring 410. One end of the screw 440 is rotatably connected to the first fixing ring 410, and the other end is threadedly connected to the second fixing ring 420. Specifically, one end of the screw 440 is rotatably connected to the first fixing ring 410 through a bearing.

[0068] When a flexible bend 320 becomes blocked, the operator rotates the screw 440 corresponding to the position of the flexible bend 320. The screw 440 drives the second fixing ring 420 to move, which in turn moves the flexible bend 320 forward relative to the rigid straight pipe 310 along the rice noodle conveying direction by a preset distance. Then, the screw 440 is rotated in the opposite direction to reset the flexible bend 320.

[0069] In a further embodiment, a nut 450 is provided at the end of the screw 440 away from the first retaining ring 410.

[0070] In use, the screw 440 can be rotated by clamping the nut 450 with a wrench.

[0071] In a further embodiment, the flexible bend 320 is a transparent tube.

[0072] In this embodiment, since the flexible bend 320 is a transparent tube, workers can observe whether the rice noodles inside the flexible bend 320 have accumulated and blocked it. If there is accumulation and blockage, the screw 440 can be turned to clear the blockage; if there is no blockage, there is no need to clear it, making manual operation more flexible.

[0073] The specific working process of the powder storage and conveying device for rice noodle processing provided by the present invention will be described in conjunction with the above embodiments:

[0074] Example 1

[0075] When conveying rice noodles, the pneumatic blower 600 is started, and air enters the storage container 100 through the air inlet 110, blowing the rice noodles in the storage container 100 into the rigid straight pipe 310 connected to it. The rice noodles then enter the processing equipment 200 through the pipeline composed of the rigid straight pipe 310 and the flexible bend pipe 320.

[0076] During the rice noodle conveying process, when the rice noodles clump together on the side wall of the flexible bend 320 due to inertia and may cause blockage, the adjusting component 400 initiates an automatic unblocking program. At preset time intervals, the cylinder 430 actuates: the movable end of the cylinder 430 at the rear end of the flexible bend 320 extends a preset distance and then resets, while the movable end of the cylinder 430 at the front end of the flexible bend 320 retracts a preset distance at the same speed and then resets, thereby causing the flexible bend 320 to slide forward a preset distance relative to the rigid straight pipe 310 along the rice noodle conveying direction and then reset.

[0077] As the flexible bend 320 slides forward relative to the rigid straight pipe 310, a relative shearing motion occurs between the pipe wall and the accumulated rice noodles, disrupting the adhesive bond between the rice noodles and the wall of the flexible bend 320. Simultaneously, the elastic deformation of the flexible bend 320 introduces an uneven stress field within the accumulated rice noodles, causing the internal force chains of the material to break. This gradually transforms the large, blocky material into a loose state, restoring the fluidity of the rice noodles and achieving automatic unblocking. During this process, the chamfer 311 on the inner edge of the rigid straight pipe 310 facing the flexible bend 320 guides the scraped rice noodles, causing them to move radially inward and enter the rigid straight pipe 310, improving the unblocking speed and effectiveness. Meanwhile, as the flexible bend 320 slides forward relative to the rigid straight pipe 310, the pressure relief valve, which is linked to the cylinder 430 signal, lowers the pressure relief threshold, and the air pressure in the annular airbag 520 drops to the first preset value, reducing the positive pressure in the overlapping area of ​​the rigid straight pipe 310 and the flexible bend 320, thereby reducing the sliding friction between them and reducing pipe wall wear. When the flexible bend 320 stops sliding and resets, the pressure relief valve restores the pressure relief threshold, and the air pressure in the annular airbag 520 returns to the second preset value, enhancing the sealing of the overlapping area and preventing rice noodles from escaping from the gap between the rigid straight pipe 310 and the flexible bend 320.

[0078] Furthermore, during the rice noodle conveying process, the diameter of the flexible bend 320 can be changed by adjusting the extension and retraction of the cylinder 430 according to the fineness of the conveyed rice noodles. When the conveyed rice noodles are relatively fine, the movable end of the cylinder 430 at the rear end of the flexible bend 320 is extended, or the movable end of the cylinder 430 at the front end is shortened, increasing the length of the non-overlapping area between the flexible bend 320 and the rigid straight pipe 310 in the longitudinal direction, thereby increasing the diameter of the flexible bend 320. When the conveyed rice noodles are relatively coarse, the movable end of the cylinder 430 at the rear end of the flexible bend 320 is shortened, or the movable end of the cylinder 430 at the front end is extended, decreasing the length of the non-overlapping area, thereby decreasing the diameter of the flexible bend 320. It should be noted that because the flexible bend 320 has an embedded spiral steel wire as a skeleton, the spiral steel wire skeleton can not only provide radial support strength to the pipe body, but also resist the collapse caused by external extrusion and internal negative pressure, suppress the excessive compression deformation of the pipe wall during the bending process, and maintain the stability of the flow cross-sectional area. Therefore, within the normal bending angle adjustment range, the spiral steel wire skeleton can significantly suppress the generation of inner wrinkles and ensure the normal use of the flexible bend 320.

[0079] Example 2

[0080] When conveying rice noodles, the pneumatic blower 600 is started, and air enters the storage container 100 through the air inlet 110, blowing the rice noodles in the storage container 100 into the rigid straight pipe 310 connected to it. The rice noodles then enter the processing equipment 200 through the pipeline composed of the rigid straight pipe 310 and the flexible bend pipe 320.

[0081] Since the flexible bend 320 in this embodiment is a transparent tube, the operator can directly observe the rice noodle accumulation and blockage inside the flexible bend 320. If blockage is observed inside the flexible bend 320, manual unblocking is initiated; otherwise, no operation is required. During manual unblocking, the operator uses a wrench to clamp the nut 450 at the end of the screw 440 corresponding to the position of the blockage in the flexible bend 320, and rotates the screw 440. Since one end of the screw 440 is rotatably connected to the first fixing ring 410 via a bearing, and the other end is threaded to the second fixing ring 420, the rotation of the screw 440 drives the second fixing ring 420 to move forward along the rice noodle conveying direction, thereby causing the flexible bend 320 to slide forward a preset distance relative to the rigid straight tube 310 along the rice noodle conveying direction. After the forward sliding is completed, the operator rotates the screw 440 in the opposite direction, driving the second fixing ring 420 to move backward, thus resetting the flexible bend 320 to its initial position. It should be noted that during the process of the flexible bend 320 sliding forward and resetting relative to the rigid straight pipe 310, a relative shearing motion occurs between the pipe wall and the accumulated rice noodles, which breaks the adhesive bond between the rice noodles and the pipe wall of the flexible bend 320. At the same time, the elastic deformation of the flexible bend 320 introduces an uneven stress field inside the accumulated rice noodles, causing the internal force chain of the material to break, so that the accumulated material gradually changes from a large block structure to a loose state, restoring the fluidity of the rice noodles and achieving manual unblocking.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A powder storage and conveying device for rice noodle processing, used to convey rice noodles from a storage container to a processing device, characterized in that, Powder storage and conveying equipment for rice noodle processing includes: The rigid straight pipe has at least two sections. One end of the rigid straight pipe is fixedly connected to the rice noodle outlet of the storage container, and the other end of the rigid straight pipe is fixedly connected to the rice noodle inlet of the processing equipment. The flexible bend has at least one section, and both ends of the flexible bend are sealed and fitted on the outer circumferential surface of the rigid straight pipe, and the flexible bend and the rigid straight pipe have an overlapping area in the length direction. The adjustment component allows the flexible bend to slide forward a preset distance relative to the rigid straight pipe along the rice noodle conveying direction before resetting.

2. The powder storage and conveying equipment for rice noodle processing according to claim 1, characterized in that, The adjustment assembly includes a first fixed ring, a second fixed ring, and a cylinder. The first fixed ring is disposed on the outer circumferential surface of the rigid straight pipe, the second fixed ring is disposed on the outer circumferential surface of the flexible bent pipe, and there are at least two cylinders, which are equally spaced around the axis of the first fixed ring. The fixed end of the cylinder is disposed on the first fixed ring, and the movable end is disposed on the second fixed ring. After each preset time interval, the cylinder causes the flexible bend to slide forward a preset distance relative to the rigid straight pipe along the rice noodle conveying direction before resetting.

3. The powder storage and conveying equipment for rice noodle processing according to claim 1, characterized in that, The adjustment assembly includes a first fixed ring, a second fixed ring, and screws. The first fixed ring is disposed on the outer circumferential surface of the rigid straight pipe, and the second fixed ring is disposed on the outer circumferential surface of the flexible bent pipe. There are at least two screws, which are equally spaced around the axis of the first fixed ring. One end of the screw is rotatably connected to the first fixed ring, and the other end is threadedly connected to the second fixed ring.

4. The powder storage and conveying equipment for rice noodle processing according to claim 3, characterized in that, A nut is provided at the end of the screw that is away from the first retaining ring.

5. The powder storage and conveying equipment for rice noodle processing according to claim 2, characterized in that, It also includes a pneumatic control component for controlling the positive pressure in the overlapping area of ​​the rigid straight pipe and the flexible bend; When the adjusting component causes the flexible bend to slide forward relative to the rigid straight pipe along the material conveying direction, the pneumatic control component controls the positive pressure of the rigid straight pipe and the flexible bend in the overlapping area to decrease to a first preset value. When the flexible bend stops sliding relative to the rigid straight pipe, the pneumatic control component controls the positive pressure of the rigid straight pipe and the flexible bend in the overlapping area to increase to a second preset value. The second preset value is greater than the first preset value.

6. The powder storage and conveying equipment for rice noodle processing according to claim 3, characterized in that, The flexible bend is a transparent tube.

7. The powder storage and conveying equipment for rice noodle processing according to claim 2, characterized in that, Flexible bends can be either semi-transparent or non-transparent.

8. A powder storage and conveying device for rice noodle processing according to claim 6 or 7, characterized in that, The flexible bend is made of high-performance polyurethane, with an embedded spiral steel wire as its skeleton.

9. The powder storage and conveying equipment for rice noodle processing according to claim 1, characterized in that, A chamfer is provided on the inner edge of the rigid straight pipe facing the flexible bend.

10. A powder storage and conveying device for rice noodle processing according to claim 1, characterized in that, An air inlet is provided on the storage container, and a pneumatic fan is fixedly connected to the air inlet. The pneumatic fan is used to blow the rice flour in the storage container into the powder storage and conveying equipment for rice flour processing.

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