Spiral conveying device of food processing spiral instant freezer

Abstract

The invention relates to the technical field of spiral instant freezers, in particular to a spiral conveying device of a food processing spiral instant freezer. Comprising a shell and a conveying device body arranged in the shell. According to the device, a net belt can be flushed with hot water from the upper portion through a flow dividing pipe and a spray head, then residues on the net belt are melted and downwards impacted, a rotating rod and a movable rod can rotate through a motor, the rotating rod rotates to drive a brush roller to rotate, and the movable rod rotates to make the flow dividing pipe and the brush roller move in a reciprocating mode; meanwhile, reciprocating motion of the brush roller is matched with the rotating action to enhance the brushing effect on the mesh belt, bristles of the brush roller can be scraped through the fixing plate when the movable rod rotates, scraped impurities are thrown out, the subsequent reuse effect is improved, and therefore products with high viscosity on the mesh belt are effectively cleaned; and the influence on subsequent cooling processing is avoided.

Description

Technical Field

[0001] This invention relates to the field of spiral quick-freezing technology, and more specifically to a spiral conveying device for a food processing spiral quick-freezing machine. Background Technology

[0002] Spiral freezers are highly efficient freezing equipment with a compact structure, wide applicability, small footprint, and the ability to freeze large quantities of products in a short time. They can effectively and economically freeze a variety of products placed inside the freezer, such as meat, fish, shrimp, meatballs, vegetables, prepared foods, and dairy products of various shapes.

[0003] In existing technologies, spiral freezers generally consist of a mechanical transmission system, a refrigeration system, an airflow circulation system, an insulated chamber, a conveyor belt, a control system, and auxiliary devices. During operation, the conveyor belt transports products, and cold air exchange occurs through the mesh openings. After processing, the conveyor belt is manually washed using a high-pressure spray nozzle. However, when processing protein colloids, grease clumps, or solidified sugar residues, these residues adhere tightly to the equipment surface (such as the conveyor belt and pipes) or remain trapped within the mesh openings. During transport, these residues easily freeze and solidify within the mesh openings. While hot water is used for washing, the shear force of the liquid alone is insufficient to break down the frozen structure, resulting in poor cleaning and affecting the quality of subsequent product processing. Furthermore, hot water splashes onto operators during cleaning, increasing safety hazards. Additionally, it is difficult to remove residual water from the conveyor belt after washing, as water can easily enter the chamber and come into contact with the refrigeration system. This can lead to ice formation on the refrigeration system surface during subsequent refrigeration, hindering the cooling effect and making the system inconvenient to use. Summary of the Invention

[0004] Therefore, it is necessary to provide a spiral conveying device for a food processing spiral quick-freezing machine to address the problems of the existing technology.

[0005] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: a spiral conveying device for a food processing spiral quick-freezing machine, comprising a housing and a conveying device body disposed within the housing, wherein a support is provided on the side of the housing, and the end of the mesh belt of the conveying device body extends into the support; It also includes a drive mechanism, a scraping assembly, a reciprocating motion assembly, and a water absorption assembly. A diversion pipe is provided above the U-shaped frame, and multiple nozzles are installed at the bottom of the diversion pipe. A connecting pipe is installed at the inlet of the diversion pipe. A rotating rod, a movable rod, and a rotating shaft are rotatably installed inside the U-shaped frame. The drive mechanism is connected to the rotating rod, the movable rod, and the rotating shaft. The scraping assembly is located on one side of the brush roller. The reciprocating motion assembly is connected to the diversion pipe and the brush roller, and makes them reciprocate. The water absorption assembly is located on the rotating shaft and is located between the brush roller and the housing. The scraping assembly is located on the side of the brush roller away from the housing.

[0006] Furthermore, the reciprocating motion assembly includes a slide rod mounted on the bracket, a movable frame on the slide rod, a diverter pipe mounted on the side of the movable frame, an L-shaped rod mounted on the side of the movable frame, a clearance hole provided on the side of the bracket, one end of the L-shaped rod sliding through the clearance hole and mounted on a moving plate, a pressing rod mounted on the side of the moving plate, an elastic element provided between the moving plate and the U-shaped frame, the elastic element causing the moving plate to move closer to the U-shaped frame, a rectangular shaft mounted on one end of the rotating rod, a brush roller slidably sleeved on the rectangular shaft, a connecting cylinder fixedly mounted on the end of the brush roller away from the rotating rod, the connecting cylinder being a cylinder, the other end of the connecting cylinder slidingly extending out of the U-shaped frame and connecting to the moving plate, one end of the movable rod extending outside the U-shaped frame and mounted on a disc, multiple arc-shaped blocks evenly mounted in a ring on the end face of the disc, and a scraping assembly provided on the movable rod.

[0007] Furthermore, the elastic unit includes a spring disposed between the movable plate and the U-shaped frame.

[0008] Furthermore, the scraping assembly includes a fixing plate, with multiple fixing plates evenly distributed around the movable rod at intervals. The fixing plates are fixedly connected to the movable rod and are arranged radially along the movable rod.

[0009] Furthermore, the water-absorbing assembly includes a roller sleeved on the rotating shaft, an annular sponge sleeved on the roller, and a squeezing unit provided on the U-shaped frame. The squeezing unit is located on one side of the bottom of the annular sponge to squeeze the annular sponge.

[0010] Furthermore, the extrusion unit includes an arc-shaped scraper installed on the inner wall of the side of the U-shaped frame. The arc-shaped scraper is fixedly installed on the U-shaped frame and is located on the lower side of the annular sponge. The arc-shaped scraper is inclined from bottom to top, gradually approaching the annular sponge, and the upper part of the arc-shaped scraper presses the annular sponge tightly.

[0011] Furthermore, the driving mechanism includes a driving box installed on the side of the U-shaped frame. One end of the rotating rod and one end of the rotating shaft both extend into the driving box and are each equipped with a first bevel gear. One end of the movable rod extends into the driving box and is equipped with a second bevel gear. A motor is installed on the driving box. A driving rod is rotatably installed on the inner wall of the back of the driving box. The driving rod is connected to the output shaft of the motor. A third bevel gear and two fourth bevel gears are sleeved on the driving rod. The two first bevel gears mesh with the two fourth bevel gears respectively. The second bevel gear meshes with the third bevel gear. The third bevel gear and the two fourth bevel gears are arranged in opposite directions.

[0012] Furthermore, the diameter of the first bevel gear is larger than the diameter of the second bevel gear.

[0013] Furthermore, the diversion pipe is located between the two mesh belts.

[0014] Furthermore, a collection box is slidably installed on the bottom inner wall of the U-shaped frame, and the collection box is located on the lower side of the arc-shaped scraper.

[0015] The beneficial effects of this invention compared to the prior art are: Firstly, this device uses a diversion pipe and nozzles to flush the conveyor belt with hot water from above, melting the residue on the belt and impacting it downwards. A motor drives a rotating rod and a movable rod to rotate. The rotating rod drives the brush roller to rotate, and the movable rod, through a disc, an arc-shaped block, a pressing rod, and a spring, causes the diversion pipe and brush roller to reciprocate, thus uniformly flushing the conveyor belt. Simultaneously, the reciprocating movement of the brush roller, combined with its rotational motion, enhances the washing effect on the conveyor belt. Furthermore, when the movable rod rotates, it scrapes the bristles of the brush roller through a fixed plate, throwing out the scraped debris and improving subsequent reuse. This effectively cleans highly adhesive products from the conveyor belt, preventing any impact on subsequent cooling and processing.

[0016] Secondly, this device uses a ring-shaped sponge to wipe the surface of the conveyor belt. The collection box prevents water from remaining on the surface of the conveyor belt and affecting subsequent processing. The ring-shaped sponge can be rotated by the rotating shaft and roller. As the ring-shaped sponge rotates, it gradually comes into contact with the top of the arc-shaped scraper. At this time, the arc-shaped scraper will squeeze the ring-shaped sponge to discharge the water it has absorbed, thereby improving the reusability of the ring-shaped sponge.

[0017] Thirdly, the collection box of this device facilitates the collection of scraped residue. During installation, rotating the limiting plate can make it contact or not contact the pull rod and the locking plate, thereby quickly limiting or canceling the limit of the collection box and preventing the collection box from moving during use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram from a first-view perspective in the embodiment; Figure 2 This is a three-dimensional structural diagram from the second perspective in the embodiment; Figure 3 This is a three-dimensional structural schematic diagram of a partially cut section of the shell and U-shaped frame in the embodiment; Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a three-dimensional structural schematic diagram of a partially cut section of the U-shaped frame, drive box, and connecting cylinder in the embodiment; Figure 6 yes Figure 5 Enlarged view of the structure at point B in the middle; Figure 7 yes Figure 5 Enlarged view of the structure at point C; Figure 8 This is a three-dimensional structural schematic diagram of a partial cross-section of the U-shaped frame in the embodiment.

[0019] The following are the labels in the diagram: 1. Shell; 2. Conveying device body; 3. Mesh belt; 4. Support; 5. U-shaped frame; 6. Connecting pipe; 7. Drive box; 8. Movable frame; 9. Diverter pipe; 10. L-shaped rod; 11. Moving plate; 12. Rotating rod; 13. Rectangular shaft; 14. Brush roller; 15. Connecting cylinder; 16. Movable rod; 17. Fixed plate; 18. Disc; 19. Arc-shaped block; 20. Spring; 21. Rotating shaft; 22. Roller; 23. Annular sponge; 24. First bevel gear; 25. Second bevel gear; 26. Motor; 27. Drive rod; 28. Third bevel gear; 29. ​​Fourth bevel gear; 30. Arc-shaped scraper; 31. Collection box; 32. Fixed rod; 33. Limiting plate; 34. Clamping plate; 35. Squeezing rod. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 - Figure 8 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figure 1 - Figure 8 The present invention will be further described below.

[0022] See attached document Figure 1 - Figure 8 A spiral conveying device for a food processing spiral quick-freezing machine includes a housing 1, a conveying device body 2 is disposed inside the housing 1, a support 4 is fixedly disposed on one side of the housing 1, one end of the mesh belt 3 of the conveying device body 2 is disposed inside the support 4, and a U-shaped frame 5 is also installed on the side of the housing 1, the U-shaped frame 5 being located directly below the support 4. A diversion pipe 9 is installed above the U-shaped frame 5, and multiple nozzles are installed at the bottom of the diversion pipe 9. A connecting pipe 6 is installed at the inlet of the diversion pipe 9. A rotating rod 12, a movable rod 16, and a rotating shaft 21 are rotatably installed inside the U-shaped frame 5. The rotating rod 12, movable rod 16, and rotating shaft 21 are arranged parallel and spaced apart. A drive mechanism is installed on the U-shaped frame 5, and the drive mechanism is connected to the rotating rod 12, movable rod 16, and rotating shaft 21. A brush roller 14 is movably installed on the U-shaped frame 5. In this embodiment, the diversion pipe 9 is located between two layers of mesh belts 3, and the nozzles backwash the lower layer of mesh belt 3 to facilitate the removal of adhering substances from the mesh belt 3. Of course, the diversion pipe 9 can also be located on the lower side of the mesh belt 3, with the nozzles of the diversion pipe 9 facing upwards, to rinse the mesh belt 3 from the front.

[0023] A scraping assembly and a reciprocating motion assembly are installed on the U-shaped frame 5. The scraping assembly is located on one side of the brush roller 14, and the reciprocating motion assembly is connected to the diverter pipe 9 and the brush roller 14, causing them to reciprocate. A water absorption assembly is also installed on the rotating shaft 21. The brush roller 14 is located on the lower side of the mesh belt 3 and brushes the bottom of the lower mesh belt 3.

[0024] The reciprocating motion assembly includes a slide bar mounted on the support 4, the slide bar being perpendicular to the conveying direction of the mesh belt 3, a movable frame 8 on the slide bar, a diverter pipe 9 mounted on the side of the movable frame 8, an L-shaped rod 10 mounted on the side of the movable frame 8, a clearance hole for the L-shaped rod 10 to extend from one side of the support 4, one end of the L-shaped rod 10 sliding through the clearance hole and mounted on a movable plate 11, a pressing rod 35 mounted on the side of the movable plate 11, an elastic element between the movable plate 11 and the U-shaped frame 5, the elastic element causing the movable plate 11 to move toward the U-shaped frame 5, a rectangular shaft 13 fixedly mounted on one end of the rotating rod 12, a brush roller 14 slidably sleeved on the rectangular shaft 13, a connecting cylinder 15 fixedly mounted on the end of the brush roller 14 away from the rotating rod 12, the connecting cylinder 15 being a cylinder, the other end of the connecting cylinder 15 slidingly extending out of the U-shaped frame 5 and connecting to the movable plate 11.

[0025] The elastic element includes a spring 20 disposed between the movable plate 11 and the U-shaped frame 5.

[0026] One end of the movable rod 16 extends to the outside of the U-shaped frame 5 and is equipped with a disc 18. Multiple arc-shaped blocks 19 are evenly installed in a ring on the end face of the disc 18. The arc-shaped blocks 19 are hemispherical with a convex center. A scraping component is provided on the movable rod 16.

[0027] The scraping assembly includes a fixed plate 17, which is evenly distributed around the movable rod 16. The fixed plate 17 is fixedly connected to the movable rod 16 and is arranged radially along the movable rod 16.

[0028] The drive mechanism includes a drive box 7 mounted on the side of the U-shaped frame 5. One end of the rotating rod 12 and the rotating shaft 21 both extend into the drive box 7 and are each equipped with a first bevel gear 24. One end of the movable rod 16 extends into the drive box 7 and is equipped with a second bevel gear 25. A motor 26 is mounted on the drive box 7. A drive rod 27 is rotatably mounted inside the drive box 7. The drive rod 27 is connected to the output shaft of the motor 26. A third bevel gear 28 and two fourth bevel gears 29 are sleeved on the drive rod 27. The two first bevel gears 24 mesh with the two fourth bevel gears 29 respectively, and the second bevel gear 25 meshes with the third bevel gear 28. The third bevel gear 28 and the two fourth bevel gears 29 are arranged in opposite directions. Specifically, the connecting pipe 6 is connected to an external water pump and outputs hot water. The housing 1, the main body of the conveying device 2, the mesh belt 3, and the support 4 are existing technologies. A refrigeration unit is also installed inside the housing 1, and these can all directly adopt the relevant structures on existing spiral chillers.

[0029] With the above structure, during cleaning, the refrigeration unit needs to be shut down first. Then, external hot water is pumped through the connecting pipe 6 to the diversion pipe 9 via an external water pump and sprayed out through multiple nozzles to rinse the lower mesh belt 3 downwards. Then, the motor 26 is started, which drives the drive rod 27 to rotate. The drive rod 27 then causes the rotating rod 12 and the rotating shaft 21 to rotate in the forward direction, while the movable rod 16 rotates in the opposite direction. The rotation of the rotating rod 12 drives the brush roller 14 to rotate through the rectangular shaft 13. The rotation of the brush roller 14 cleans the mesh belt 3. At the same time, the movable rod 16 drives the disc 18 to rotate, and the disc 18 passes through multiple arc-shaped blocks 19. Spring 20 and extrusion rod 35 cause movable plate 11 to move back and forth. Movable plate 11 drives movable frame 8 and connecting cylinder 15 to move back and forth, which in turn drives diverter pipe 9 and brush roller 14 to move back and forth, thereby uniformly rinsing the mesh belt 3 and avoiding dead corners in cleaning. At the same time, the reciprocating movement of brush roller 14 combined with rotation enhances the brushing effect on mesh belt 3. When movable rod 16 rotates, it scrapes the bristles of brush roller 14 through fixed plate 17 and throws out debris, improving the subsequent reuse effect. This effectively cleans products with high stickiness on mesh belt 3 and avoids affecting subsequent cooling processing.

[0030] like Figure 5 and Figure 8 As shown, the water absorption component is located on the lower side of the mesh belt 3 and between the brush roller 14 and the housing 1. The water absorption component is used to absorb the water that adheres to the mesh belt 3 when rinsing the mesh belt 3.

[0031] The water absorption assembly includes a roller 22 sleeved on the rotating shaft 21, an annular sponge 23 sleeved on the roller 22, and a squeezing unit provided on the U-shaped frame 5. The squeezing unit is located on the bottom side of the annular sponge 23 to squeeze the annular sponge 23 and squeeze out the water on the annular sponge 23 so that the annular sponge 23 can continuously absorb water from the mesh belt 3.

[0032] The extrusion unit includes an arc-shaped scraper 30 installed on the inner wall of the side of the U-shaped frame 5. The arc-shaped scraper 30 is fixedly installed on the U-shaped frame 5 and is located on the lower side of the annular sponge 23. The arc-shaped scraper 30 is inclined from bottom to top and gradually approaches the annular sponge 23. The upper part of the arc-shaped scraper 30 presses against the annular sponge 23, so that the annular sponge 23 can be released from the arc-shaped scraper 30 first, and the pressure on the annular sponge 23 continues to increase with rotation, so as to avoid damage to the annular sponge 23.

[0033] In this solution, when the mesh belt 3 moves, the annular sponge 23 wipes the surface of the mesh belt 3. The collection box 31 prevents water from remaining on the surface of the mesh belt 3 and affecting subsequent processing. At the same time, the rotation of the rotating shaft 21 drives the roller 22 to rotate, and the rotation of the roller 22 drives the annular sponge 23 to rotate. When the annular sponge 23 rotates, it will gradually come into contact with the top of the arc-shaped scraper 30. At this time, the arc-shaped scraper 30 will squeeze the annular sponge 23 to discharge the water it has absorbed, thereby improving the reusability of the annular sponge 23.

[0034] like Figure 5 As shown, the diameter of the first bevel gear 24 is larger than the diameter of the second bevel gear 25.

[0035] In this scheme, the diameter ratio of the first bevel gear 24 and the second bevel gear 25 makes it easier to make the rotation frequency of the movable rod 16 greater than that of the rotating rod 12, thereby avoiding the fixed plate 17 from rotating too slowly and affecting the throwing effect, while ensuring the reciprocating frequency of the diverter pipe 9 and the brush roller 14.

[0036] like Figure 4 As shown, the side of the diverter tube 9 and brush roller 14 away from the housing 1.

[0037] In this scheme, the position setting of the diversion pipe 9 facilitates the washing of the mesh belt 3 from top to bottom. The staggered arrangement of the diversion pipe 9 and the brush roller 14 facilitates the washing and brushing of debris on the mesh belt 3.

[0038] like Figure 5 and Figure 7 As shown, a collection box 31 is slidably installed on the inner bottom wall of the U-shaped frame 5. The collection box 31 is located below the arc-shaped scraper 30. The collection box 31 is used to collect water absorbed by the annular sponge 23 scraped off by the arc-shaped scraper 30, and can also collect water used for rinsing the mesh belt 3. Foreign objects scraped off by the scraping component also enter the collection box 31. A drain pipe is provided on one side of the bottom of the collection box 31 to facilitate the centralized discharge of rinsing water. The collection box 31 can slide out through the open side of the U-shaped frame 5 for easy cleaning.

[0039] Two fixing rods 32 are installed on the front of the U-shaped frame 5. The other end of each fixing rod 32 is rotatably mounted with a limiting plate 33. Both sides of the collection box 31 are equipped with locking rods. The end of each locking rod away from the collection box 31 is fixedly mounted with a locking plate 34. The limiting plate 33 is provided with a limiting groove that cooperates with the locking rod.

[0040] In this solution, the collection box 31 facilitates the collection of scraped residue. During installation, after the collection box 31 is slid into the U-shaped frame 5, the limiting plate 33 is rotated so that the free end of the limiting plate 33 slides between the card plate 34 and the collection box 31. At the same time, the limiting plate 33 rests on the card rod. At this time, the limiting groove cooperates with the card rod, thereby realizing the limiting of the collection box 31.

[0041] The working principle of this device is as follows: When the mesh belt 3 needs cleaning, the refrigeration unit is turned off, and then hot water is delivered to the connecting pipe 6 through an external water pump. At this time, hot water is sprayed from multiple nozzles to rinse the mesh belt 3. Simultaneously, the motor 26 is started, and the output of the motor 26 drives the drive rod 27 to rotate. The drive rod 27 drives the second bevel gear 25 and two first bevel gears 24 to rotate. The rotation of the rotating rod 12 drives the rectangular shaft 13 to rotate, and the rotation of the rectangular shaft 13 drives the brush roller 14 to rotate. The rotation of the brush roller 14 brushes the surface of the mesh belt 3. At the same time, the rotation of the movable rod 16 drives the disc 18 to rotate, and the rotation of the disc 18 drives multiple arc blocks 19 to move. When the arc surface of the arc block 19 contacts the extrusion rod 35, the continued movement of the arc block 19 pushes the extrusion rod 35 to move. When the extrusion rod 35 is between two adjacent arc blocks 19... When the spring 20 resets the squeezing rod 35, the moving plate 11 moves back and forth. The reciprocating movement of the moving plate 11 drives the L-shaped rod 10 and the connecting cylinder 15 to move back and forth. The L-shaped rod 10 drives the movable frame 8 to move horizontally back and forth. The reciprocating movement of the movable frame 8 drives the diversion pipe 9 to move back and forth, thereby uniformly rinsing the mesh belt 3. At the same time, the reciprocating movement of the connecting cylinder 15 drives the brush roller 14 to move back and forth, thereby enhancing the brushing effect on the mesh belt 3 in conjunction with the rotation action. Meanwhile, the reverse rotation of the movable rod 16 causes the fixed plate 17 to move in a circular motion. The circular motion of the fixed plate 17 scrapes the bristles of the brush roller 14. At the same time, the centrifugal force of the circular motion throws the scraped debris into the collection box 31, improving the subsequent reuse effect. This effectively cleans the highly sticky products on the mesh belt 3 and avoids affecting the subsequent cooling process.

[0042] After washing, the conveyor belt 3 continues to move and comes into contact with the annular sponge 23. At this time, the annular sponge 23 absorbs the residual moisture on the surface of the conveyor belt 3. Meanwhile, the rotation of the shaft 21 drives the roller 22 to rotate, which in turn drives the annular sponge 23 to rotate. As the annular sponge 23 rotates, it gradually comes into contact with the top of the arc-shaped scraper 30. At this time, the arc-shaped scraper 30 squeezes the annular sponge 23 to expel the absorbed moisture, thereby effectively preventing water from remaining on the surface of the conveyor belt 3 and affecting subsequent processing.

[0043] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present 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 all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A spiral conveyor device of a spiral freezer for food processing, comprising a housing (1) and a conveyor device body (2) arranged inside the housing (1), characterized in that: The side of the shell (1) is provided with a support (4), the end of the mesh belt (3) of the conveying device body (2) extends into the support (4); Further comprising a driving mechanism, a scraping assembly, a reciprocating motion assembly and a water suction assembly, the top of the U-shaped frame (5) is provided with a shunt pipe (9), a plurality of nozzles are installed at the bottom of the shunt pipe (9), a connecting pipe (6) is installed at the water inlet of the shunt pipe (9), a rotating shaft (21), a movable rod (16) and a rotating rod (12) are rotatably installed in the U-shaped frame (5), the driving mechanism is connected with the rotating shaft (21), the movable rod (16) and the rotating rod (12) at the same time, the scraping assembly is arranged on one side of the brush roller (14), the reciprocating motion assembly is connected with the shunt pipe (9) and the brush roller (14) and makes them reciprocate, the water suction assembly is arranged on the rotating shaft (21), and the water suction assembly is arranged between the brush roller (14) and the shell (1), and the scraping assembly is arranged on the side of the brush roller (14) away from the shell (1).

2. A screw conveyor for a food processing spiral freezer as claimed in claim 1, wherein, The reciprocating motion assembly comprises a sliding rod arranged on the support (4), a movable frame (8) is arranged on the sliding rod, the shunt pipe (9) is installed on the side of the movable frame (8), an L-shaped rod (10) is installed on the side of the movable frame (8), an avoiding hole is formed in the side of the support (4), one end of the L-shaped rod (10) slides through the avoiding hole and is provided with a moving plate (11), an extrusion rod (35) is installed on the side of the moving plate (11), an elastic element is arranged between the moving plate (11) and the U-shaped frame (5), the elastic element makes the moving plate (11) move towards the U-shaped frame (5), one end of the rotating rod (12) is provided with a rectangular shaft (13), the brush roller (14) is slidably sleeved on the rectangular shaft (13), a connecting cylinder (15) is fixedly installed at the end of the brush roller (14) away from the rotating rod (12), the connecting cylinder (15) is a cylinder, the other end of the connecting cylinder (15) slides out of the U-shaped frame (5) and is connected with the moving plate (11), one end of the movable rod (16) extends out of the U-shaped frame (5) and is provided with a disc (18), a plurality of arc-shaped blocks (19) are uniformly arranged in a ring shape on the end face of the disc (18), and the scraping assembly is arranged on the movable rod (16).

3. A screw conveyor for a food processing spiral freezer as claimed in claim 2, wherein, The elastic unit comprises a spring (20) arranged between the moving plate (11) and the U-shaped frame (5).

4. A screw conveyor for a food processing spiral freezer as defined in claim 2, wherein, The scraping assembly comprises a fixed plate (17), a plurality of fixed plates (17) are uniformly distributed around the movable rod (16) at intervals, the fixed plate (17) is fixedly connected with the movable rod (16) and is arranged along the radial direction of the movable rod (16).

5. A screw conveyor for a food processing spiral freezer as defined in claim 1, wherein, The water suction assembly comprises a roller (22) sleeved on the rotating shaft (21), a ring-shaped sponge (23) is sleeved on the roller (22), a pressing unit is arranged on the U-shaped frame (5) and located on one side of the bottom of the ring-shaped sponge (23) to press the ring-shaped sponge (23).

6. A screw conveyor for a food processing spiral freezer as claimed in claim 5, wherein, The extrusion unit comprises arc-shaped scrapers (30) installed on the inner walls of the side portions of the U-shaped frame (5), the arc-shaped scrapers (30) are fixedly installed on the U-shaped frame (5), the arc-shaped scrapers (30) are located at one side of the lower portion of the annular sponge (23), the arc-shaped scrapers (30) are inclined from the lower portion to the upper portion and gradually approach the annular sponge (23), and the upper portion of the arc-shaped scrapers (30) compresses the annular sponge (23).

7. A screw conveyor for a food processing spiral freezer as defined in claim 1, wherein The driving mechanism comprises a driving box (7) installed on the side portion of the U-shaped frame (5), one end of the rotating shaft (21) and the rotating rod (12) extends into the driving box (7) and is provided with a first bevel gear (24), one end of the movable rod (16) extends into the driving box (7) and is provided with a second bevel gear (25), the driving box (7) is provided with a motor (26), the back inner wall of the driving box (7) is rotatably provided with a driving rod (27), the driving rod (27) is connected with the output shaft of the motor (26), the driving rod (27) is provided with a third bevel gear (28) and two fourth bevel gears (29), the two first bevel gears (24) are respectively engaged with the two fourth bevel gears (29), the second bevel gear (25) is engaged with the third bevel gear (28), and the third bevel gear (28) and the two fourth bevel gears (29) are oppositely arranged.

8. A screw conveyor for a food processing spiral freezer as claimed in claim 7, wherein, The diameter of the first bevel gear (24) is greater than the diameter of the second bevel gear (25).

9. A screw conveyor for a food processing spiral freezer as defined in claim 1, wherein, The shunt pipe (9) is located between the two layers of mesh belts (3).

10. A screw conveyor for a food processing spiral freezer as defined in claim 1, wherein The bottom inner wall of the U-shaped frame (5) is slidably provided with a collecting box (31), and the collecting box (31) is located at the lower side of the arc-shaped scraper (30).

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