A spiral feeding mechanism suitable for food processing

Abstract

The present invention relates to the technical field of spiral feeding, and in particular to a spiral feeding mechanism suitable for food processing, comprising a conveying pipe and a spiral blade; a cleaning unit for cleaning the spiral blade is arranged on the conveying pipe, a slide groove is provided at the upper part of the conveying pipe along the axial direction of the conveying pipe, the slide groove is communicated with the inside of the conveying pipe, the cleaning unit comprises a slider, the slider is slidably arranged on the slide groove along the extension direction of the slide groove, a cleaning rod is vertically penetrated on the slider, and the cleaning rod is slidably matched with the slider in the vertical direction, cleaning brushes are evenly distributed on the side wall of the cleaning rod, and a rotating unit is arranged at the end of the cleaning rod. The present invention ensures that the spiral blade can be cleaned without disassembly, improves the cleaning efficiency of the spiral blade, and also reduces the workload during cleaning, and can also avoid the situation that the spiral blade is accidentally damaged when the spiral blade is disassembled and installed.

Description

Technical Field

[0001] The invention relates to the technical field of spiral feeding, and in particular to a spiral feeding mechanism suitable for food processing. Background Art

[0002] In existing production, the spiral discharge structure can realize continuous transportation of materials without interruption and pause, thus improving production efficiency. However, in existing screening machines, screening and discharging are carried out through vibration, which will generate loud noise when the screening machine is in use and will reduce the service life of the device. The noise generated will not only pollute the surrounding environment, but also cause harm to the human body. By setting up a spiral discharge structure, the noise can be well avoided.

[0003] Chinese patent CN221543387U discloses a spiral discharge structure suitable for a flour sifting machine, including a sifting machine body, wherein both left and right sides of the inner wall of the sifting machine body are rotatably connected with rotating plates, the rotating plates are fixedly connected with movable rods at opposite ends, the outer walls of the movable rods are slidably connected with movable rings, the opposite ends of the movable rings are fixedly connected with sieves, the lower side of the right end of the sifting machine body is rotatably connected with a secondary synchronous wheel and penetrates through it, the left end of the secondary synchronous wheel is fixedly connected with a second transmission rod, the left end of the second transmission rod is fixedly connected with a first bevel gear, the lower side of the outer wall of the first bevel gear is meshedly connected with a second bevel gear, and the bottom end of the second bevel gear is fixedly connected with a spiral rod.

[0004] Although the above scheme reduces noise by setting up a spiral feeding mechanism, the existing spiral feeding mechanism is generally difficult to clean internally. When the spiral feeding mechanism is used in the food field, especially in the transportation of sauces, the sauce will adhere to the spiral feeding mechanism. If the spiral feeding mechanism is not cleaned regularly, some of the sauce remaining in the spiral feeding mechanism will become moldy, thereby causing food safety problems. If the spiral feeding mechanism is cleaned regularly, it is necessary to manually disassemble the spiral feeding mechanism and clean the spiral blades regularly, which is a huge workload. Summary of the invention

[0005] In order to solve the problems of the prior art, the present invention provides a spiral feeding mechanism suitable for food processing, comprising a conveying pipe and a spiral blade rotatably arranged in the conveying pipe along the axis of the conveying pipe; a cleaning unit for cleaning the spiral blade is arranged on the conveying pipe, a slide groove is opened at the upper part of the conveying pipe along the axis direction of the conveying pipe, the slide groove is communicated with the inside of the conveying pipe, the cleaning unit comprises a sliding block, the sliding block is slidably arranged on the slide groove along the extension direction of the slide groove, a cleaning rod is vertically penetrated on the sliding block, and the cleaning rod is slidably matched with the sliding block in the vertical direction, a cleaning brush is evenly distributed on the side wall of the cleaning rod, a rotating unit is arranged at the end of the cleaning rod, the rotating unit is used to drive the cleaning rod to rotate, when cleaning, the cleaning rod extends into the conveying pipe in the vertical direction, then the spiral blade rotates and pushes the sliding block through the cleaning rod, the sliding block slides in the extension direction of the slide groove, and at the same time the rotating unit drives the cleaning rod to rotate, when the sliding block moves to one end of the slide groove, the spiral blade rotates in the opposite direction, the sliding block moves in the opposite direction and resets in the slide groove, and the sliding block reciprocates along the extension direction of the slide groove.

[0006] Preferably, the spiral blade can slide along the extension direction of the conveying tube. When the spiral blade conveys food, the spiral part of the spiral blade is located below the feeding port. Before cleaning the spiral blade, the spiral blade moves along the extension direction of the conveying tube, and the spiral part of the spiral blade moves completely from the feeding port to the lower part of the chute.

[0007] Preferably, an extension rod is horizontally arranged at one end of the spiral blade close to the feeding port, and a linear drive is horizontally arranged on the end of the conveying pipe where the feeding port is arranged, the driving end of the linear drive is connected to the end of the extension rod, and a first driving unit for driving the extension rod to rotate is arranged on the extension rod, the first driving unit includes a first gear ring, the first gear ring is sleeved on the extension rod, the cross-section of the extension rod is a non-circular structure, the first gear ring and the extension rod are slidably matched along the extension direction of the conveying pipe and rotate synchronously.

[0008] Preferably, the rotating unit includes a second gear and a rack, the second gear is fixedly arranged at the upper end of the cleaning rod, the rack is arranged on one side of the second gear along the extension direction of the conveying pipe, the second gear and the rack are meshed with each other, and the rotating unit can be lifted and lowered synchronously with the cleaning rod in the vertical direction.

[0009] Preferably, a bellows cover is respectively provided on both sides of the slide block, and the two bellows covers are arranged along the extension direction of the slide groove, and the two bellows covers cover the slide groove.

[0010] Preferably, a storage shell is provided at both ends of the slide groove, an arc-shaped cavity is opened in the storage shell, the arc-shaped cavity is communicated with the slide groove, and the two ends of the corrugated cover are fixedly connected to the slider and the end of the arc-shaped cavity away from the slide groove. When the slider is located at the end of the slide groove, the corrugated cover slides completely into the arc-shaped cavity.

[0011] Preferably, a lifting unit for driving the cleaning rod to move in a vertical direction is provided on the slider, the lifting unit includes a lifting frame that moves in the vertical direction, the upper end of the cleaning rod is arranged on the lifting frame, the cleaning rod is lifted and lowered synchronously with the lifting frame, the threaded rod is vertically arranged on the slider, and the threaded rod passes through the lifting frame in the vertical direction and cooperates with the lifting frame thread.

[0012] Preferably, a closing plate is provided on the slider for sliding in the horizontal direction, and the moving path of the cleaning rod in the vertical direction has a highest position and a lowest position. When the cleaning rod is at the highest position, the closing plate will slide into the slider and seal the slider under the cleaning rod. When the cleaning rod moves from the highest position to the lowest position, the closing plate located in the slider moves and withdraws in the horizontal direction.

[0013] Preferably, a follower plate is provided on one side of the cleaning rod and is raised and lowered synchronously with the cleaning rod. A guide groove is provided on the follower plate, and the closing plate extends into the guide groove and slidably cooperates with the guide groove. When the cleaning rod descends, the follower plate descends synchronously with the cleaning rod, and the guide groove guides the closing plate to slide out of the slider. When the cleaning rod rises, the follower plate rises synchronously with the cleaning rod, and the guide groove guides the closing plate to slide into the slider.

[0014] Preferably, a discharge unit is provided at one end of the conveying pipe away from the feeding port, and the discharge unit includes a sleeve rotatably arranged at the end of the conveying pipe, a second switch valve is arranged on the side wall of the sleeve, and a second driving unit for driving the sleeve to rotate is arranged on one side of the sleeve. When the spiral blade conveys food, the sleeve rotates and drives the second switch valve vertically upward. When the spiral blade is in a cleaning state, the sleeve drives the second switch valve to rotate to a vertical downward state.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the spiral blade is cleaned, the spiral blade will first move along the extension direction of the conveying pipe, that is, the spiral part of the spiral blade moves out from the feeding port, and the spiral blade part originally located at the feeding port moves to the bottom of the chute. At the beginning of cleaning, the slider is located at one end of the chute close to the feeding port, and the cleaning rod vertically slidingly arranged on the slider is in the highest position at this time. Since the cleaning rod can move on the slider in the vertical direction, the cleaning rod has a highest position and a lowest position on the moving path in the vertical direction. When the cleaning rod is in the highest position, the cleaning rod is located at the conveying port. The cleaning rod is inserted into the conveying pipe in the vertical direction when the cleaning and drying is at the lowest position. At this time, the cleaning rod is inserted into the spiral gap of the spiral blade. Then the spiral blade starts to rotate. The rotating spiral blade gradually contacts the cleaning rod extending into the conveying pipe. Then the spiral blade pushes the cleaning rod along the extension direction of the conveying pipe, so that the cleaning rod drives the slider to move from one end of the chute close to the feeding port to the other end of the chute away from the feeding port. At the same time, when the slider slides along the extension direction of the chute, the rotating unit can also drive the cleaning rod to rotate, so that the cleaning rod drives the cleaning brush to extend along the extension direction of the conveying pipe. When the cleaning rod moves in the direction of the cleaning, the cleaning rod can also rotate around the axis of the cleaning rod itself, so that the cleaning rod can complete the cleaning of the spiral blade. When the cleaning rod cleans the spiral blade, the spiral part on the spiral blade can be simply regarded as two spiral end faces that need to be cleaned. When the spiral blade rotates forward, that is, when the slider moves in the direction away from the feeding port, the rotating cleaning rod can clean one of the spiral end faces through the cleaning brush. When the slider moves to the end of the slide away from the feeding port, the spiral blade rotates in the opposite direction, and the other spiral end face of the spiral blade can contact the cleaning brush on the cleaning rod. As the spiral blade rotates in the opposite direction, the cleaning rod can be pushed by the spiral blade to move in the opposite direction, so that the cleaning brush on the cleaning rod can clean the other spiral end face of the spiral blade, and when the spiral blade rotates and pushes the cleaning rod to move along the extension direction of the conveying pipe, the cleaning rod will inevitably sweep all the spiral end faces of the spiral blade, so that the spiral blade can be ensured to be cleaned without disassembly, thereby improving the cleaning efficiency of the spiral blade, while reducing the workload during cleaning, and avoiding accidental damage to the spiral blade when the spiral blade is disassembled and installed.

[0017] 2. The bellows are provided to avoid direct contact between the conveying pipe and the outside world. At the same time, storage shells are provided at both ends of the slide, so that the bellows can be completely retracted into the bellows when it is retracted, reducing the movement of the spiral blades, thereby reducing the wear of the spiral blades when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a spiral feeding mechanism suitable for food processing.

[0019] Figure 2 It is a side view of a spiral feeding mechanism suitable for food processing.

[0020] Figure 3 It is a spiral feeding mechanism suitable for food processing. Figure 2 Schematic cross-sectional view at AA in the middle.

[0021] Figure 4 It is a spiral feeding mechanism suitable for food processing. Figure 3 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 5 A cutaway perspective view of a spiral feeding mechanism suitable for food processing Figure 1 .

[0023] Figure 6 It is a spiral feeding mechanism suitable for food processing. Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0024] Figure 7 It is a spiral feeding mechanism suitable for food processing. Figure 5 A local enlarged schematic diagram of point D in the middle.

[0025] Figure 8 A cutaway perspective view of a spiral feeding mechanism suitable for food processing Figure 2 .

[0026] Fig. 9 It is a spiral feeding mechanism suitable for food processing. Figure 8 A partial enlarged schematic diagram of point E in the middle.

[0027] Fig.10 It is a spiral feeding mechanism suitable for food processing. Figure 8 A partial enlarged schematic diagram of point F in the middle.

[0028] Fig.11 The present invention is a three-dimensional schematic diagram of a spiral feeding mechanism suitable for food processing with part of the corrugated cover removed.

[0029] Fig.12 It is a spiral feeding mechanism suitable for food processing. Fig.11 A local enlarged schematic diagram of point G in the middle.

[0030] The numbers in the figure are:

[0031] 1. conveying pipe; 11. chute; 12. feeding port; 13. corrugated cover; 14. storage shell; 2. spiral blade; 21. extension rod; 22. rotating sleeve; 3. cleaning unit; 31. cleaning rod; 311. first switch valve; 32. cleaning brush; 33. rotating unit; 331. second gear; 332. rack; 333. limit frame; 34. slider; 35. lifting unit; 351. lifting frame; 352. threaded rod; 353. guide rod; 354. second rotary drive; 36. closing plate; 37. follower plate; 371. guide groove; 4. linear drive; 5. first drive unit; 51. first gear ring; 52. first gear; 53. first rotary drive; 6. discharge unit; 61. sleeve; 62. second switch valve; 63. second drive unit; 631. third rotary drive; 632. second gear ring; 633. third gear. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Reference Figure 1 - Figure 6 , Fig. 9 and Fig.12 A spiral feeding mechanism suitable for food processing comprises a conveying pipe 1 and a spiral blade 2 which is rotatably arranged in the conveying pipe 1 along the axis of the conveying pipe 1; a cleaning unit 3 for cleaning the spiral blade 2 is arranged on the conveying pipe 1, a slide groove 11 is opened on the upper part of the conveying pipe 1 along the axis direction of the conveying pipe 1, the slide groove 11 is communicated with the inside of the conveying pipe 1, the cleaning unit 3 comprises a slider 34, the slider 34 is slidably arranged on the slide groove 11 along the extension direction of the slide groove 11, a cleaning rod 31 is vertically penetrated on the slider 34, and the cleaning rod 31 is slidably matched with the slider 34 in the vertical direction, and the cleaning rod 31 is slidably matched with the slider 34 in the vertical direction. Cleaning brushes 32 are evenly distributed on the side walls of 31, and a rotating unit 33 is provided at the end of the cleaning rod 31. The rotating unit 33 is used to drive the cleaning rod 31 to rotate. When cleaning, the cleaning rod 31 extends into the conveying pipe 1 in the vertical direction, and then the spiral blade 2 rotates and pushes the slider 34 through the cleaning rod 31. The slider 34 slides along the extension direction of the slide groove 11. At the same time, the rotating unit 33 drives the cleaning rod 31 to rotate. When the slider 34 moves to one end of the slide groove 11, the spiral blade 2 rotates in the opposite direction, and the slider 34 moves in the opposite direction and resets in the slide groove 11. The slider 34 moves back and forth according to the above process.

[0034] A feeding port 12 is provided at the upper part of one end of the conveying pipe 1. When conveying foods such as sauces, the spiral blade 2 needs to be rotated first, and then the foods are put into the feeding port 12. The spiral blade 2 conveys the foods at the feeding port 12 to the other end of the conveying pipe 1 along the extension direction of the conveying pipe 1, thus completing the conveying of the foods. However, after long-term use, due to the special structure of the spiral blade 2, some foods may adhere to the spiral blade 2. If the spiral blade 2 is continuously used without being cleaned, food safety problems may occur. In order to avoid the above problems, the usual treatment method is to extract the spiral blade 2 in the conveying pipe 1 and clean it manually. However, the above cleaning method is almost entirely dependent on manual labor. And different spiral feeding mechanisms have different volumes. If the volume of the conveying pipe 1 is large, the corresponding spiral blade 2 is also large. In this way, the time consumed in the process of disassembly and installation is also long. In the frequent disassembly and installation process, it is easy to cause collisions with the periphery of the spiral blade 2, and then damage the spiral blade 2. In order to avoid disassembling the spiral blade 2 when cleaning it, a cleaning unit 3 is set on the conveying pipe 1. The specific working principle is as follows: when the spiral blade 2 has been used for a period of time, it is necessary to clean the spiral blade 2. The chute 11 opened on the conveying pipe 1 is located on one side of the feeding port 12. When the spiral blade 2 is in use, the spiral part of the spiral blade 2 is located below the feeding port 12, and when the spiral blade 2 is cleaned During cleaning, the spiral blade 2 will first move along the extension direction of the conveying pipe 1, that is, the spiral part of the spiral blade 2 will move out from the feeding port 12, and the part of the spiral blade 2 originally located at the feeding port 12 will move to the bottom of the chute 11. At the beginning of cleaning, the slider 34 is located at the end of the chute 11 close to the feeding port 12, and the cleaning rod 31 vertically slidingly arranged on the slider 34 is in the highest position at this time. Since the cleaning rod 31 can move on the slider 34 in the vertical direction, the cleaning rod 31 has a highest position and a lowest position on the moving path in the vertical direction. When the cleaning rod 31 is in the highest position, the cleaning rod 31 is located outside the conveying pipe 1. When the cleaning and drying is in the lowest position, the cleaning rod 31 is inserted into the conveying pipe 1 in the vertical direction. , and at this time the cleaning rod 31 is inserted into the spiral gap of the spiral blade 2, and then the spiral blade 2 starts to rotate, and the rotating spiral blade 2 gradually contacts the cleaning rod 31 extending into the conveying pipe 1, and then the spiral blade 2 pushes the cleaning rod 31 along the extension direction of the conveying pipe 1, so that the cleaning rod 31 drives the slider 34 to move from the end of the chute 11 close to the feeding port 12 to the end of the chute 11 away from the feeding port 12. At the same time, when the slider 34 slides along the extension direction of the chute 11, the rotating unit 33 can also drive the cleaning rod 31 to rotate, so that when the cleaning rod 31 drives the cleaning brush 32 to move along the extension direction of the conveying pipe 1, the cleaning rod 31 can also rotate around the axis of the cleaning rod 31 itself, so that the cleaning rod 31 can complete the cleaning of the spiral blade 2.When the cleaning rod 31 cleans the spiral blade 2, the spiral part on the spiral blade 2 can be simply regarded as two spiral end faces that need to be cleaned. When the spiral blade 2 rotates forward, that is, when the slider 34 moves in a direction away from the feeding port 12, the rotating cleaning rod 31 can clean one of the spiral end faces through the cleaning brush 32. When the slider 34 moves to the end of the chute 11 away from the feeding port 12, the spiral blade 2 rotates in the opposite direction, and the other spiral end face of the spiral blade 2 can contact the cleaning brush 32 on the cleaning rod 31. As the spiral blade 2 rotates in the opposite direction, the cleaning rod 31 The spiral blade 2 can be pushed to move in the opposite direction, so that the cleaning brush 32 on the cleaning rod 31 can clean the other spiral end surface of the spiral blade 2. When the spiral blade 2 rotates and pushes the cleaning rod 31 to move along the extension direction of the conveying pipe 1, the cleaning rod 31 can definitely sweep the entire spiral end surface of the spiral blade 2, thus ensuring that the spiral blade 2 can be cleaned without disassembly, improving the cleaning efficiency of the spiral blade 2, while reducing the workload during cleaning, and avoiding accidental damage to the spiral blade 2 when disassembling and installing the spiral blade 2.

[0035] Reference Figure 1 - Fig.12 : The spiral blade 2 can slide along the extension direction of the conveying pipe 1. When the spiral blade 2 conveys food, the spiral part of the spiral blade 2 is located below the feeding port 12. Before cleaning the spiral blade 2, the spiral blade 2 moves along the extension direction of the conveying pipe 1, and the spiral part of the spiral blade 2 completely moves from the feeding port 12 to the lower part of the chute 11.

[0036] When the spiral blade 2 is in the conveying state, that is, when the spiral blade 2 is conveying food, the cleaning rod 31 on the slider 34 is in the highest position. At this time, the cleaning rod 31 has not extended into the conveying pipe 1, and the spiral blade 2 rotating in the conveying pipe 1 cannot push the cleaning rod 31 when rotating. At this time, the slider 34 is located at one end of the chute 11 close to the feeding port 12. When the spiral blade 2 needs to be cleaned, the cleaning rod 31 descends in the vertical direction, and the cleaning rod 31 moves from the highest position to the lowest position. The cleaning brush 32 on the cleaning rod 31 contacts the spiral blade 2, and the spiral blade 2 pushes the cleaning rod 31 through its own rotation. At the same time, the cleaning brush 32 on the cleaning rod 31 can also clean the spiral end surface of the spiral blade 2.

[0037] Reference Figure 8 and Fig.10An extension rod 21 is horizontally arranged at one end of the spiral blade 2 close to the feeding port 12, and a linear driver 4 is horizontally arranged on the end of the conveying pipe 1 where the feeding port 12 is arranged, and the driving end of the linear driver 4 is connected to the end of the extension rod 21, and a first driving unit 5 for driving the extension rod 21 to rotate is arranged on the extension rod 21. The first driving unit 5 includes a first gear ring 51, and the first gear ring 51 is sleeved on the extension rod 21. The cross-section of the extension rod 21 is a non-circular structure. The first gear ring 51 and the extension rod 21 slide together along the extension direction of the conveying pipe 1 and rotate synchronously.

[0038] A rotating sleeve 22 is provided on the outer periphery of the extension rod 21, and the rotating sleeve 22 is located on one side of the first gear ring 51. The rotating sleeve 22 is rotatably arranged at the end of the conveying pipe 1, and the extension rod 21 and the rotating sleeve 22 are slidably matched along the length direction of the conveying pipe 1. When the extension rod 21 rotates, the rotating sleeve 22 rotates synchronously with the extension rod 21. When the spiral blade 2 normally conveys food, the driving end of the linear drive 4 is in a retracted state. When the spiral blade 2 needs to be cleaned, the driving end of the linear drive 4 extends, and the extension rod 21 pushes the spiral blade 2 under the drive of the linear drive 4, so that the spiral blade 2 located at the lower part of the feeding port 12 moves toward the bottom of the chute 11, so that the cleaning rod 3 can be ensured. When cleaning the spiral blade 2, the cleaning rod 31 can completely sweep the spiral end surface of the spiral blade 2. The first driving unit 5 also includes a first gear 52 and a first rotation driver 53. The first gear 52 is arranged on one side of the first gear ring 51. The first gear 52 and the first gear ring 51 are meshed with each other. The first rotation driver 53 is arranged at the end of the first gear 52. The first rotation driver 53 is preferably a servo motor. When the first rotation driver 53 is started, the first rotation driver 53 can drive the first gear 52. The first gear 52 drives the first gear ring 51 to rotate, thereby causing the extension rod 21 to drive the spiral blade 2 to rotate. The first rotation driver 53 is preferably a servo motor.

[0039] Reference Figure 5 , Figure 7 and Fig.11 : The rotating unit 33 includes a second gear 331 and a rack 332. The second gear 331 is fixedly arranged at the upper end of the cleaning rod 31. The rack 332 is arranged on one side of the second gear 331 along the extension direction of the conveying pipe 1. The second gear 331 and the rack 332 are meshed with each other. The rotating unit 33 can be lifted and lowered synchronously with the cleaning rod 31 in the vertical direction.

[0040] It is worth noting that the rack 332 can only move in the vertical direction but cannot move in the extension direction of the conveying pipe 1. In this way, when the cleaning rod 31 is extended into the conveying pipe 1 and the spiral blade 2 rotates, the cleaning rod 31 is driven by the slider 34 to move in the extension direction of the conveying pipe 1, and the second gear 331 rolls on one side of the rack 332. In this way, the second gear 331 can drive the cleaning rod 31 to rotate, and the cleaning brush 32 on the cleaning rod 31 cleans the spiral end surface of the spiral blade 2 during rotation. A water injection port is provided on the slider 34, and a first switch valve 311 is provided on the water injection port. When the cleaning rod 31 rotates, the first switch valve 311 is opened, and clean water is injected into the conveying pipe 1 through the water injection port. When the clean water is injected into the conveying pipe 1, the cleaning brush 32 can be wetted, thereby ensuring that the cleaning brush 32 can better clean the spiral end surface of the spiral blade 2. A limit frame 333 is vertically fixed on the conveying pipe 1, and the limit frame 333 and the rack 332 slide in the vertical direction.

[0041] Reference Figure 8 : A bellows cover 13 is respectively arranged on both sides of the slider 34, and the two bellows covers 13 are arranged along the extension direction of the slide groove 11, and the two bellows covers 13 cover the slide groove 11.

[0042] By arranging the bellows 13 on the slide groove 11, the bellows 13 can cover the slide groove 11. When the spiral blade 2 is in the state of conveying food, the bellows 13 can isolate the food in the conveying pipe 1 from the outside air, thereby preventing the pressure in the outside air from mixing into the food during the conveying process.

[0043] Reference Fig. 9 : A storage shell 14 is respectively provided at both ends of the slide groove 11, and an arc-shaped cavity is opened in the storage shell 14. The arc-shaped cavity is communicated with the slide groove 11. The two ends of the corrugated cover 13 are respectively fixedly connected with the slider 34 and the end of the arc-shaped cavity away from the slide groove 11. When the slider 34 is located at the end of the slide groove 11, the corrugated cover 13 slides completely into the arc-shaped cavity.

[0044] By arranging a storage shell 14 at both ends of the slide groove 11 to store the bellows 13, the space occupied by the bellows 13 when it shrinks can be reduced. In this way, when the spiral blade 2 moves along the extension direction of the conveying pipe 1, the moving distance of the spiral blade 2 can be shortened, thereby improving the cleaning efficiency.

[0045] Reference Figure 6 - Fig. 9: A lifting unit 35 for driving the cleaning rod 31 to move in the vertical direction is arranged on the slider 34, and the lifting unit 35 includes a lifting frame 351 that moves in the vertical direction. The upper end of the cleaning rod 31 is arranged on the lifting frame 351, and the cleaning rod 31 is lifted and lowered synchronously with the lifting frame 351. The threaded rod 352 is vertically arranged on the slider 34, and the threaded rod 352 penetrates the lifting frame 351 in the vertical direction and is threadedly matched with the lifting frame 351.

[0046] The rotating unit 33 is arranged on the lifting frame 351, and the lifting unit 35 also includes a guide rod 353 and a second rotation driver 354. The guide rod 353 is fixedly arranged on the slider 34 in the vertical direction. The guide rod 353 is arranged parallel to the threaded rod 352. The guide rod 353 penetrates the lifting frame 351 in the vertical direction and slides with the lifting frame 351. The second rotation driver 354 is arranged at the bottom of the threaded rod 352. The second rotation driver 354 is preferably a servo motor. When the second rotation driver 354 is started, the second rotation driver 354 drives the threaded rod 352 to rotate, and the threaded rod 352 drives the lifting frame 351 to rise and fall in the vertical direction. When the spiral part of the spiral blade 2 is completely pushed to the bottom of the slide groove 11, the second rotation driver 354 is started.

[0047] Reference Fig.12 : A closing plate 36 is provided on the slider 34 for sliding in the horizontal direction. The moving path of the cleaning rod 31 in the vertical direction has a highest position and a lowest position. When the cleaning rod 31 is at the highest position, the closing plate 36 will slide into the slider 34 and seal the slider 34 at the lower part of the cleaning rod 31. When the cleaning rod 31 moves from the highest position to the lowest position, the closing plate 36 located in the slider 34 moves and withdraws in the horizontal direction.

[0048] It is worth noting that when the closing plate 36 located in the slider 34 is completely withdrawn from the slider 34, the cleaning rod 31 still does not extend into the conveying pipe 1, and the lifting unit 35 continues to drive the cleaning rod 31 to descend. The cleaning rod 31 is gradually extended into the conveying pipe 1 under the drive of the lifting unit 35. When the cleaning rod 31 completes the cleaning and moves out of the cleaning pipe, the cleaning rod 31 gradually rises in the vertical direction. When the cleaning rod 31 is completely withdrawn from the conveying pipe 1, the closing plate 36 is gradually closed to separate the cleaning rod 31 from the conveying pipe 1. This can prevent the food in the conveying pipe 1 from accidentally splashing onto the cleaning brush 32 of the cleaning rod 31 during transportation, thereby causing deterioration and inconvenience for subsequent cleaning.

[0049] Reference Fig.12: A follower plate 37 is provided on one side of the cleaning rod 31, and the follower plate 37 is provided with a guide groove 371. The closing plate 36 extends into the guide groove 371 and slides with the guide groove 371. When the cleaning rod 31 descends, the follower plate 37 descends synchronously with the cleaning rod 31, and the guide groove 371 guides the closing plate 36 to slide out of the slider 34. When the cleaning rod 31 rises, the follower plate 37 rises synchronously with the cleaning rod 31, and the guide groove 371 guides the closing plate 36 to slide into the slider 34.

[0050] The follower plate 37 is fixedly arranged on the lifting frame 351, thus avoiding the use of a separate driver to drive the closing plate 36 to move, thereby reducing the manufacturing cost and the subsequent maintenance cost.

[0051] Reference Figure 1 , Figure 2 , Figure 5 and Fig.11 A discharge unit 6 is provided at one end of the conveying pipe 1 away from the feeding port 12, and the discharge unit 6 includes a sleeve 61 rotatably provided at the end of the conveying pipe 1, a second switch valve 62 is provided on the side wall of the sleeve 61, and a second driving unit 63 for driving the sleeve 61 to rotate is provided on one side of the sleeve 61. When the spiral blade 2 conveys food, the sleeve 61 rotates and drives the second switch valve 62 vertically upward. When the spiral blade 2 is in a cleaning state, the sleeve 61 drives the second switch valve 62 to rotate to a vertical downward state.

[0052] The second driving unit 63 includes a third rotation driver 631, a second gear ring 632 and a third gear 633. The second gear ring 632 is fixedly sleeved on the periphery of the sleeve 61. The third gear 633 is rotatably arranged on one side of the second gear ring 632. The third gear 633 and the second gear ring 632 are meshed with each other. The third rotation driver 631 is arranged at the end of the third gear 633. The third rotation driver 631 is preferably a servo motor. When the spiral blade 2 conveys food, the second switch valve 62 arranged on the sleeve 61 is vertically upward. At this time, the food passes through the sleeve 61 and the food will not accumulate at the second switch valve 62. When the conveying pipe 1 and the spiral blade 2 need to be cleaned, the second driving unit 63 drives the sleeve 61 to rotate, so that the second switch valve 62 on the sleeve 61 is vertically downward, and the second switch valve 62 is in an open state at this time. In this way, the sewage in the conveying pipe 1 can be discharged from the second switch valve 62 on the sleeve 61, thereby preventing the sewage from entering the equipment of the subsequent process.

[0053] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A spiral feeding mechanism suitable for food processing, comprising a conveying pipe (1) and a spiral blade (2) rotatably arranged in the conveying pipe (1) along the axis of the conveying pipe (1); It is characterized in that A cleaning unit (3) for cleaning the spiral blades (2) is provided on the conveying pipe (1). A slide groove (11) is provided on the upper part of the conveying pipe (1) along the axial direction of the conveying pipe (1). The slide groove (11) communicates with the interior of the conveying pipe (1). The cleaning unit (3) comprises a slider (34). The slider (34) is slidably provided on the slide groove (11) along the extension direction of the slide groove (11). A cleaning rod (31) is vertically penetrated on the slider (34). The cleaning rod (31) is slidably matched with the slider (34) along the vertical direction. Cleaning brushes (32) are evenly distributed on the side wall of the cleaning rod (31). A rotating unit (33) is provided, and the rotating unit (33) is used to drive the cleaning rod (31) to rotate. When cleaning is performed, the cleaning rod (31) extends into the conveying pipe (1) in a vertical direction, and then the spiral blade (2) rotates and pushes the slider (34) through the cleaning rod (31). The slider (34) slides along the extension direction of the slide groove (11). At the same time, the rotating unit (33) drives the cleaning rod (31) to rotate. When the slider (34) moves to one end of the slide groove (11), the spiral blade (2) rotates in the opposite direction, and the slider (34) moves in the opposite direction and resets in the slide groove (11). The slider (34) moves back and forth along the extension direction of the slide groove (11); A lifting unit (35) for driving the cleaning rod (31) to move in a vertical direction is arranged on the slider (34); the lifting unit (35) comprises a lifting frame (351) that moves in a vertical direction; the upper end of the cleaning rod (31) is arranged on the lifting frame (351); the cleaning rod (31) is lifted and lowered synchronously with the lifting frame (351); a threaded rod (352) is vertically arranged on the slider (34); the threaded rod (352) penetrates the lifting frame (351) in a vertical direction and is threadably matched with the lifting frame (351); A closing plate (36) is provided on the slider (34) so ​​as to slide in the horizontal direction. The moving path of the cleaning rod (31) in the vertical direction has a highest position and a lowest position. When the cleaning rod (31) is at the highest position, the closing plate (36) slides into the slider (34) and seals the slider (34) below the cleaning rod (31). When the cleaning rod (31) moves from the highest position to the lowest position, the closing plate (36) located in the slider (34) moves out in the horizontal direction. A follower plate (37) is provided on one side of the cleaning rod (31) and is raised and lowered synchronously with the cleaning rod (31). A guide groove (371) is provided on the follower plate (37). The closing plate (36) extends into the guide groove (371) and is slidably engaged with the guide groove (371). When the cleaning rod (31) descends, the follower plate (37) descends synchronously with the cleaning rod (31), and the guide groove (371) guides the closing plate (36) to slide out of the slider (34). When the cleaning rod (31) rises, the follower plate (37) rises synchronously with the cleaning rod (31), and the guide groove (371) guides the closing plate (36) to slide into the slider (34).

2. A spiral feeding mechanism suitable for food processing according to claim 1, characterized in that: The spiral blade (2) can slide along the extension direction of the conveying pipe (1). When the spiral blade (2) conveys food, the spiral portion of the spiral blade (2) is located below the feeding port (12). Before the spiral blade (2) is cleaned, the spiral blade (2) moves along the extension direction of the conveying pipe (1), and the spiral portion of the spiral blade (2) completely moves from the feeding port (12) to the lower part of the chute (11).

3. A spiral feeding mechanism suitable for food processing according to claim 1, characterized in that: An extension rod (21) is horizontally arranged at one end of the spiral blade (2) close to the feeding port (12); a linear drive (4) is horizontally arranged on the end of the conveying pipe (1) where the feeding port (12) is arranged; a driving end of the linear drive (4) is connected to the end of the extension rod (21); a first driving unit (5) for driving the extension rod (21) to rotate is arranged on the extension rod (21); the first driving unit (5) comprises a first gear ring (51); the first gear ring (51) is sleeved on the extension rod (21); the cross section of the extension rod (21) is a non-circular structure; the first gear ring (51) and the extension rod (21) are slidably matched and rotate synchronously along the extension direction of the conveying pipe (1).

4. A spiral feeding mechanism suitable for food processing according to claim 1, characterized in that: The rotating unit (33) comprises a second gear (331) and a rack (332); the second gear (331) is fixedly arranged on the upper end of the cleaning rod (31); the rack (332) is arranged on one side of the second gear (331) along the extension direction of the conveying pipe (1); the second gear (331) and the rack (332) are meshed with each other; the rotating unit (33) can be raised and lowered synchronously with the cleaning rod (31) in the vertical direction.

5. The spiral feeding mechanism suitable for food processing according to claim 1, characterized in that: A corrugated cover (13) is respectively provided on both sides of the sliding block (34); the two corrugated covers (13) are arranged along the extension direction of the sliding groove (11); and the two corrugated covers (13) shield the sliding groove (11).

6. A spiral feeding mechanism suitable for food processing according to claim 5, characterized in that: A storage shell (14) is provided at each end of the slide groove (11). An arc-shaped cavity is provided in the storage shell (14). The arc-shaped cavity is communicated with the slide groove (11). Both ends of the bellows (13) are fixedly connected to the slider (34) and one end of the arc-shaped cavity away from the slide groove (11). When the slider (34) is located at the end of the slide groove (11), the bellows (13) completely slides into the arc-shaped cavity.

7. A spiral feeding mechanism suitable for food processing according to claim 1, characterized in that: A discharge unit (6) is provided at one end of the conveying pipe (1) away from the feeding port (12), the discharge unit (6) comprising a sleeve (61) rotatably provided at the end of the conveying pipe (1), a second switch valve (62) being provided on a side wall of the sleeve (61), and a second drive unit (63) for driving the sleeve (61) to rotate being provided on one side of the sleeve (61); when the spiral blade (2) conveys food, the sleeve (61) rotates and drives the second switch valve (62) to face vertically upwards; when the spiral blade (2) is in a cleaning state, the sleeve (61) drives the second switch valve (62) to rotate to a vertically downward state.

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