Steel belt type dried beancurd stick processing device

Abstract

The invention discloses a steel belt type dried beancurd stick processing device, and relates to the technical field of bean product processing. The device comprises a first steel belt conveyor, and a first cleaning mechanism and a second cleaning mechanism are arranged at the tail end and the head end of the first steel belt conveyor correspondingly. The first cleaning mechanism and the second cleaning mechanism are arranged at the two ends of the first steel belt conveyor correspondingly, and double cleaning is conducted on the bottom side face of the lower layer of the steel belt; the brush bristles are deeply cleaned in the using process through liquid flow flushing of the cleaning spray head and the synergistic cleaning effect of the blocking rod and the convex column on the brush bristles, and the technical problem that dirt is easily hidden in a traditional brush roller and becomes a secondary pollution source is solved; the surface of the steel strip is cleaned by the clean bristles, various residues on the surface of the steel strip can be effectively removed, the steel strip can be continuously put into production in a clean state, and the sanitary quality of dried beancurd sticks is guaranteed from the source.

Description

Technical Field

[0001] This invention belongs to the field of soybean product processing technology, and in particular relates to a steel belt type bean curd processing device. Background Technology

[0002] As an important category of traditional Chinese soy products, the production and processing of dried bean curd sticks (yuba) requires extremely high levels of cleanliness in the equipment. In the mechanized production of yuba, the steel belt conveyor is the core equipment, responsible for carrying the soy milk film and completing its initial shaping. However, during this process, proteins, starches, and other components from the soy milk continuously adhere to the surface of the steel belt. If these residues are not removed promptly and effectively, they will not only affect the hygienic quality of subsequent yuba products but also cause scaling on the conveyor belt surface and accelerate equipment wear.

[0003] The common cleaning method currently available involves installing a fixed scraper at the end of the steel strip. While this structure is simple, it has significant drawbacks: the scraper is in rigid contact with the steel strip, making it difficult to precisely control the pressure on the strip surface. Insufficient pressure results in poor cleaning and fails to remove stubborn stains; excessive pressure can damage the steel strip surface, or even cause the scraper to break or the steel strip to be scratched due to obstruction by hard objects, leading to high maintenance costs. Furthermore, the simple scraping action is insufficient to remove fine particles that have seeped into the gaps in the steel strip, resulting in incomplete cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a steel belt type tofu skin processing device, which solves the problems raised in the prior art by setting a first cleaning mechanism and a second cleaning mechanism at the end and the beginning of the first steel belt conveyor, respectively, to perform double cleaning on the bottom side of the lower layer of the steel belt.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a steel belt type dried bean curd processing device, comprising a first steel belt conveyor, with a plurality of air blowing pipes arranged sequentially along the conveying direction of the first steel belt conveyor. The air blowing pipes are horizontally positioned above the first steel belt conveyor, and their length direction is perpendicular to the conveying direction of the first steel belt conveyor. A first cleaning mechanism and a second cleaning mechanism are respectively provided at the end and the beginning of the first steel belt conveyor. Both the first and second cleaning mechanisms clean the bottom side of the single-layer steel belt of the first steel belt conveyor. Both the first and second cleaning mechanisms include a cleaning tank connected to the lower part of the frame of the first steel belt conveyor by a connecting column. Brush rollers are rotatably installed between the opposite side walls of the cleaning tank. A plurality of cleaning nozzles and a baffle are installed on the side wall of the cleaning tank away from the end of the first steel belt conveyor. A plurality of protrusions are provided on the side of the baffle near the brush roller. When the bristles of the brush roller come into contact with the baffle, they bend under the obstruction of the baffle, and at this time, the impurities adhering to the bristles are washed away by the liquid flow sprayed from the cleaning nozzles.

[0007] Furthermore, the second cleaning mechanism has a vertical overflow pipe at the bottom of the cleaning tank, with the baffle and overflow pipe located on opposite sides of the brush roller; the top of the overflow pipe is connected to a downward-facing curved section; the overflow pipe is a corrugated pipe, and at least one guide rod assembly is connected between the curved section and the inner bottom side of the cleaning tank; a filter assembly is connected to the port of the curved section; a telescopic component is also provided, connected to the curved section and driving the curved section to move up and down; a backflush pipe is installed through the curved section, with the outlet end of the backflush pipe facing the filter assembly; The backflush pipe and cleaning nozzle of the second cleaning mechanism are connected to the output end of the first cleaning pump through pipe one and pipe two, respectively. A solenoid valve is installed on pipe one. A return pipe is opened at the bottom of the cleaning tank of the first cleaning mechanism. The return pipe is connected to the return tank A through pipe three. A filter mechanism is installed on pipe three between the return pipe and the return tank A. The first cleaning pump is installed in the return tank A. The outlet end of the overflow pipe is connected to the top of the return tank B. The second cleaning pump is installed in the return tank B. The second cleaning pump is connected to the cleaning nozzle of the first cleaning mechanism through pipe four.

[0008] Furthermore, above the first steel belt conveyor, a guide roller, an inclined conveyor, a slitting conveyor, a rounding conveyor, a drying mechanism, a cutting conveyor, and a finished product conveyor are fixed by pillars. The finished product conveyor, the cutting conveyor, the drying mechanism, the rounding conveyor, the slitting conveyor, the inclined conveyor, and the guide roller are arranged sequentially along the conveying direction of the first steel belt conveyor. The conveying directions of the cutting conveyor, the rounding conveyor, the slitting conveyor, and the inclined conveyor are on the same plane as the conveying direction of the first steel belt conveyor.

[0009] Furthermore, the slitting conveyor is a second steel belt conveyor, and a slitting mechanism is provided above the second steel belt conveyor. The slitting mechanism includes a main shaft, on which several annular blades are detachably mounted at equal intervals along its length. Bearing seats supported by vertical rods are respectively installed at both ends of the frame of the second steel belt conveyor, and the two ends of the main shaft are respectively mounted on two bearing seats. A sprocket A is installed at one end of the main shaft, and a sprocket B is installed at the end of the drive roller / driven roller of the second steel belt conveyor. The sprocket A and the sprocket B are connected by chain drive.

[0010] Furthermore, the rounding conveying mechanism includes a belt conveyor A, on which an inverted U-shaped frame A is mounted; a T-shaped guide rail is provided on the inner top side of the U-shaped frame A, and a sliding groove is installed on the T-shaped guide rail; rounding rollers are connected to both ends of the sliding groove through connecting rods, and the length direction of the rounding rollers is perpendicular to the conveying direction of the belt conveyor A.

[0011] Furthermore, an electric slider is installed on the T-shaped guide rail, and the electric slider is installed on the mounting groove; the connecting rod includes an inner sleeve and an outer sleeve that cooperate with each other, and a spring is connected between the inner sleeve and the outer sleeve; the rounding roller includes a roller body and a central rod, the central rod passes through the roller body, and a bearing is connected between the roller body and the central rod; connecting blocks are respectively connected to both ends of the central rod, and pin holes A and insertion holes are opened on the connecting blocks, the end of the inner sleeve is inserted into the insertion hole, and a plurality of pin holes B are equally spaced along the axial direction at the end of the inner sleeve; it also includes a pin inserted into the pin holes A and pin holes B.

[0012] Furthermore, a pair of connecting rods are respectively provided on both sides of the chute, and a crossbar A is connected between the ends of the two connecting rods located on the same side of the chute. Several partition columns are connected to the bottom side of the crossbar A, and the bottom end of the partition columns is connected to the crossbar B. The crossbar A, partition columns and crossbar B cooperate to form several channels for the bean curd strips to pass through.

[0013] Furthermore, the drying mechanism includes a rectangular chamber, in which a roller conveyor is installed, and an air inlet and an exhaust outlet are respectively provided at the bottom and top of the chamber.

[0014] Furthermore, the slitting conveyor and the finished product conveyor are perpendicular in their conveying directions; the slitting conveyor includes a third steel belt conveyor; a material guiding structure is provided at the end of the third steel belt conveyor, the material guiding structure includes a horizontally installed U-shaped frame B, several side plates are provided inside the U-shaped frame B, and a material guiding channel is formed between adjacent side plates; a horizontal material guiding plate and a vertically installed material guiding baffle are provided inside the material guiding channel, a rectangular opening is formed between the material guiding baffle and the material guiding plate, and the bottom end of the material guiding baffle extends downward to the top of the finished product conveyor; a slitting structure is provided above the third steel belt conveyor, the slitting structure includes a U-shaped frame C installed on the frame of the third steel belt conveyor, a telescopic cylinder is installed on the U-shaped frame C, the end of the telescopic cylinder is connected to a slitting knife, and the top of the slitting knife is connected to a guide rod that guides through the U-shaped frame B.

[0015] Furthermore, the end of the first steel belt conveyor is equipped with a scraper closely attached to the upper layer of the single-layer steel belt. The scraper is inclined and positioned on one side of a collection trough. The bottom of the collection trough is connected to a drain pipe, and a recycling bin is located directly below the drain pipe. A filter screen is installed at the port of the recycling bin. A material distribution trough is installed directly above the feed end of the first steel belt conveyor, with its length direction perpendicular to the conveying direction of the first steel belt conveyor. It also includes a soybean milk storage tank, the bottom of which is connected to a slurry delivery pipe, which is installed on the material distribution trough. Inside the trough; the bottom side of the trough is provided with several discharge ports along its length; the recycling tank is equipped with a recycling pump that pumps the slurry in the recycling tank to the soybean milk storage tank / trough; inverted U-shaped frames D and E are respectively installed on both sides of the trough; the top of the U-shaped frame D is connected to a scraper rod that moves up and down through an adjusting screw; the inner top side of the U-shaped frame E is connected to a scraper plate that abuts against the upper surface of the single-layer steel strip through an elastic telescopic rod; the end of the scraper plate is provided with a silicone / rubber layer that contacts the upper surface of the single-layer steel strip.

[0016] The present invention has the following beneficial effects:

[0017] This invention employs a first cleaning mechanism and a second cleaning mechanism at both ends of a first steel belt conveyor to perform dual cleaning of the lower bottom side of the steel belt. The liquid flow from the cleaning nozzles and the synergistic cleaning action of the bristles by the baffles and protrusions achieve deep cleaning of the bristles during use, solving the technical problem of traditional brush rollers easily accumulating dirt and becoming a source of secondary pollution. This ensures that clean bristles are used to clean the surface of the steel belt, effectively removing various residues and ensuring that the steel belt is continuously put into production in a clean state, thus guaranteeing the hygienic quality of the dried bean curd from the source.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the steel belt type dried bean curd processing device of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0022] Figure 3 for Figure 1 Enlarged view of a section at point B in the middle;

[0023] Figure 4 This is a schematic diagram of the rounding and conveying mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the slitting and conveying mechanism of the present invention;

[0025] Figure 6 For the present invention Figure 5 Top view;

[0026] Figure 7 This is a schematic diagram of the structure of the second cleaning mechanism of the present invention;

[0027] Figure 8 This is a cross-sectional view of the second cleaning mechanism of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-First steel belt conveyor, 2-Slitting conveyor, 3-Rounding conveyor mechanism, 4-Drying mechanism, 5-Cutting conveyor mechanism, 6-Finished product conveyor mechanism, 7-Soy milk storage tank, 8-Filter screen, 9-Second washing mechanism, 10-Blowing pipe, 11-Guide roller, 12-Inclined conveyor, 13-Collection trough, 14-Support column, 15-U-shaped frame D, 16-U-shaped frame E, 21-Slitting mechanism, 30-Belt conveyor A, 32-Installation chute, 33-Connecting rod, 34-Crossbar A, 35-Separator column, 36-Crossbar B, 37-U-shaped frame A, 38-Connecting block, 39-Rounding roller, 50-Third steel belt conveyor, 51-U-shaped frame C, 52-Telescopic cylinder, 53-Slitting knife, 54-Guide rod, 55-U-shaped frame B, 56-Side plate, 57-Guide plate, 58-Guide baffle, 70-Material trough, 71-Slurry conveying pipe, 80-Recovery bucket, 90-First cleaning mechanism, 91-Connecting column, 92-Cleaning tank, 93-Brush roller, 94-Overflow pipe, 95-Bend, 96-Guide rod assembly, 97-Filter assembly, 98-Telescopic component, 99-Backflush pipe, 100-Rolled bean curd strip, 131-Drain pipe, 151-Adjusting screw, 321-Connecting rod, 381-Pin hole A, 382-Insertion hole, 383-Pin rod, 390-Roller body, 391-Center rod, 921-Cleaning nozzle, 922-Blocking rod, 923-Protruding column. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0032] Please see Figure 1 As shown, this invention is a steel belt type dried bean curd processing device, including a first steel belt conveyor 1 that operates continuously during the production process. A plurality of air blowing pipes 10 are sequentially arranged along the conveying direction of the first steel belt conveyor 1. The air blowing pipes 10 are horizontally positioned above the first steel belt conveyor 1, and their length direction is perpendicular to the conveying direction of the first steel belt conveyor 1. Above the first steel belt conveyor 1, a guide roller 11, an inclined conveyor 12, a slitting conveyor 2, a rounding conveyor 3, a drying mechanism 4, a cutting conveyor 5, a finished product conveyor 6, and a material distribution trough 70 are supported and fixed by pillars 14. The slitting and conveying mechanism 5, the drying mechanism 4, the rounding and conveying mechanism 3, the slitting conveyor 2, the inclined conveyor 12, and the guide roller 11 are arranged sequentially along the conveying direction of the first steel belt conveyor 1; the conveying directions of the slitting and conveying mechanism 5, the rounding and conveying mechanism 3, the slitting conveyor 2, and the inclined conveyor 12 are on the same plane as the conveying direction of the first steel belt conveyor 1; the length direction of the feeding trough 70 is perpendicular to the conveying direction of the first steel belt conveyor 1; it also includes a soybean milk storage tank 7, the bottom of which is connected to a pulp conveying pipe 71, which is installed inside the feeding trough 70; the bottom side of the feeding trough 70 has several discharge ports along its length.

[0033] At the start of production, soy milk is pumped from the soy milk storage tank 7 into the distribution trough 70 via the delivery pipe 71, and then evenly distributed onto the surface of the steel belt of the first steel belt conveyor 1 through the discharge port at the bottom. Several air blowers 10 installed above the steel belt cool the soy milk film, promoting the formation of tofu skin.

[0034] The formed bean curd skin is scooped up at the end of the first steel belt conveyor 1, guided by the guide roller 11 and the inclined conveyor 12, and enters the system consisting of the slitting conveyor 2, the rounding conveyor 3, the drying mechanism 4, the cutting conveyor 5, and the finished product conveyor 6 for subsequent processing.

[0035] The slitting conveyor 2 is a second steel belt conveyor. A slitting mechanism 21 is installed above the second steel belt conveyor. The slitting mechanism 21 includes a main shaft, on which several annular blades are detachably installed at equal intervals along its length. Bearing seats supported by vertical rods are installed at both ends of the frame of the second steel belt conveyor, and the two ends of the main shaft are installed on the two bearing seats respectively. A sprocket A is installed at one end of the main shaft, and a sprocket B is installed at the end of the drive roller / driven roller of the second steel belt conveyor. The sprocket A and the sprocket B are connected by a chain drive. The function of the slitting conveyor 2 is to precisely slit the bean curd skin into strips.

[0036] The second steel belt conveyor receives large sheets of dried bean curd skin from the inclined conveyor 12 and transports them forward smoothly. The slitting mechanism 21 is driven synchronously with the movement of the second steel belt conveyor, enabling precise slitting without pulling or piling up the dried bean curd skin. As the forward-moving dried bean curd skin passes under the high-speed rotating annular blades, it is cleanly and neatly slit into multiple parallel strips 100. The adjustable blade spacing allows the equipment to flexibly produce products of different widths.

[0037] like Figure 4The rounding conveyor mechanism 3 includes a belt conveyor A30, on which an inverted U-shaped frame A37 is mounted; a T-shaped guide rail is provided on the inner top side of the U-shaped frame A37, and a slide groove 32 is installed on the T-shaped guide rail; rounding rollers 39 are connected to both ends of the slide groove 32 by connecting rods 321, and the length direction of the rounding rollers 39 is perpendicular to the conveying direction of the belt conveyor A30; an electric slider is installed on the T-shaped guide rail, and the electric slider is installed on the slide groove 32; the connecting rod 321 includes an inner sleeve and an outer sleeve that cooperate with each other, and a spring is connected between the inner sleeve and the outer sleeve; the rounding roller 39 includes a roller body 390 and a center rod 391, the center rod 391 passes through the roller body 390, and a bearing is connected between the roller body 390 and the center rod 391; connecting blocks 38 are connected to both ends of the center rod 391, and pin holes A381 and insertion holes A382 are opened on the connecting blocks 38, and the inner sleeve... The end of the cylinder is inserted into the insertion hole 382, ​​and the end of the inner sleeve is provided with several pin holes B at equal intervals along the axial direction; it also includes a pin 383 inserted into the pin hole A381 and the pin hole B; a pair of connecting rods 33 are respectively provided on both sides of the slide groove 32, and a crossbar A34 is connected between the ends of the two connecting rods 33 located on the same side of the slide groove 32. Several partition columns 35 are connected to the bottom side of the crossbar A34, and the bottom end of the partition column 35 is connected to the crossbar B36. The crossbar A34, the partition column 35 and the crossbar B36 cooperate to form several channels for the bean curd strips 100 to pass through; the spring in the connecting rod 321 provides elastic pressure to the rounding roller 39, so that it can fit the bean curd strips 100 for rolling and rounding; the electric slider can drive the rounding roller 39 to move laterally back and forth along the T-shaped guide rail, so that the rounding is more uniform; the channels formed by the partition columns 35 and the others on both sides of the slide groove 32 can effectively prevent the bean curd strips 100 from sticking together during the rounding process.

[0038] The function of the rounding conveyor mechanism 3 is to roll the flat bean curd strips 100 into a cylindrical shape. The belt conveyor A30 carries and transports the bean curd strips 100. As the bean curd strips 100 move forward on the belt conveyor A30, the rounding rollers 39 above rotate under the action of friction. This combination of rotation and movement produces a combined effect of rolling and rubbing on the bean curd strips 100, causing them to gradually curl into a circle. At the same time, channels are provided on both sides of the rounding rollers 39 for the bean curd strips 100 to pass through, which can separate the bean curd strips 100 moving side by side, preventing them from sticking together during the rounding process and ensuring the independence of each bean curd strip 100.

[0039] The drying unit 4 includes a rectangular chamber with a roller conveyor installed inside. Air inlets and exhaust outlets are located at the bottom and top of the chamber, respectively. Hot, dry air generated by a heating device is introduced through the air inlet, while humid air rich in moisture is discharged through the exhaust outlet, thus creating an upward hot airflow within the chamber. The dried bean curd strips, carrying moisture, slowly pass through the conveyor inside the chamber, with hot air continuously blowing on their surface, causing the internal moisture to gradually evaporate. The characteristics of the roller conveyor ensure that all surfaces of the bean curd strips are exposed to hot air, achieving uniform drying. The drying temperature and conveying speed can be adjusted according to process requirements to avoid problems such as surface hardening or insufficient drying.

[0040] like Figure 5-6 The system includes a slitting conveyor 5 and a finished product conveyor 6, with their conveying directions perpendicular to each other. The slitting conveyor 5 includes a third steel belt conveyor 50. A guide structure is provided at the end of the third steel belt conveyor 50. The guide structure includes a horizontally installed U-shaped frame B55, with several side plates 56 inside the U-shaped frame B55, forming a guide channel between adjacent side plates 56. A horizontal guide plate 57 and a vertically installed guide baffle 58 are provided inside the guide channel, forming a rectangular opening between the guide baffle 58 and the guide plate 57. The bottom end of the guide baffle 58 extends downwards above the finished product conveyor 6. A slitting structure is provided above the third steel belt conveyor 50. The slitting structure includes a U-shaped frame C51 installed on the frame of the third steel belt conveyor 50, with a telescopic cylinder 52 installed on the U-shaped frame C51. The end of the telescopic cylinder 52 is connected to a slitting blade 53, and the top of the slitting blade 53 is connected to a guide rod 54 that guides through the U-shaped frame B55.

[0041] The slitting and conveying mechanism 5 is responsible for receiving and conveying the dried strips of dried bean curd, and cutting them into segments of a set length. The control system, based on the conveyor speed or sensor detection, periodically triggers the telescopic cylinder to push the slitting blade 53 downwards, cutting the bean curd strips into uniform lengths. The guide rod 54 ensures a stable and unbiased slitting process. At the end of the third steel belt conveyor 50, a guiding structure is provided, consisting of a U-shaped frame B55, side plates 56, guide plates 57, and guide baffles 58. The guiding structure's function is to organize the potentially scattered bean curd segments into a uniform length. The conveying mechanism 6 docks with the predetermined position to ensure that they can slide smoothly and orderly onto the finished product conveyor belt; specifically, the cut bean curd strips 100 move along with the third steel belt conveyor 50. When the cut bean curd strips 100 are separated from the third steel belt conveyor 50, they are conveyed to the guide plate 57 under the action of inertia. The bean curd strips 100 continue to move on the upper guide plate 57 and hit the guide baffle 58. At this time, under the action of the guide baffle 58 and the gravity of the bean curd strips 100, the end of the bean curd strips 100 bends and hangs down to be conveyed out onto the finished product conveying mechanism 6.

[0042] If strip-shaped dried bean curd is to be produced, the bean curd skin is conveyed to the slitting conveyor 2. The annular blade installed on the main shaft of the slitting mechanism 21 cuts the bean curd skin into several strip-shaped parts. The slitting bean curd strips 100 enter the rounding conveyor 3 for rounding. After rounding, the bean curd enters the drying mechanism 4 for dehydration and drying. The dried bean curd strips 100 are conveyed to the end by the cutting conveyor 5 and cut by the cutting blade 53 according to the set length. The cut bean curd segments slide smoothly to the finished product conveyor 6 through the guiding structure composed of the guide plate 57 and the guide baffle 58, completing the entire processing flow.

[0043] To facilitate thorough cleaning of the single-layer steel belt of the first steel belt conveyor 1, a first cleaning mechanism 90 and a second cleaning mechanism 9 are respectively installed at the end and beginning of the first steel belt conveyor 1; both the first cleaning mechanism 90 and the second cleaning mechanism 9 clean the bottom side of the lower layer of the single-layer steel belt of the first steel belt conveyor 1; such as Figure 7-8 Both the first cleaning mechanism 90 and the second cleaning mechanism 9 include a cleaning tank 92 connected to the frame of the first steel belt conveyor 1 via a connecting column 91. Brush rollers 93 are rotatably mounted between the opposite side walls of the cleaning tank 92. Several cleaning nozzles 921 and a baffle 922 are installed on the side wall of the cleaning tank 92 away from the end of the first steel belt conveyor 1. Several protrusions 923 are provided on the side of the baffle 922 near the brush roller 93. When the bristles of the brush roller 93 contact the baffle 922, they bend under the obstruction of the baffle 922, and at this time, the impurities adhering to the bristles are washed away by the liquid flow sprayed from the cleaning nozzles 921. A vertical overflow pipe 94 is provided at the bottom of the cleaning tank 92 of the second cleaning mechanism 9. The overflow pipe 94 is located at the bottom of the cleaning tank 92, and the baffle 922 and the overflow pipe 923 are connected to the bottom wall of the cleaning tank 92. 4 are located on both sides of the brush roller 93; the top of the overflow pipe 94 is connected to a bent part 95 with the open end facing downward; the overflow pipe 94 is a corrugated pipe, and at least one guide rod group 96 is connected between the bent part 95 and the inner bottom side of the cleaning tank 92, and a filter assembly 97 is connected to the port of the bent part 95; a telescopic part 98 is also provided, which is connected to the bent part 95 and drives the bent part 95 to move up and down; a return pipe is opened at the bottom of the cleaning tank 92 of the first cleaning mechanism 90, and the return pipe is connected to the return tank A through pipe three. A filter mechanism is provided on pipe three between the return pipe and the return tank A, and a cleaning pump one is installed in the return tank A; the outlet end of the overflow pipe 94 is connected to the top of the return tank B, and a cleaning pump two is installed in the return tank B. The cleaning pump two is connected to the cleaning nozzle 921 of the first cleaning mechanism 90 through pipe four.

[0044] During processing, the steel belt of the first steel belt conveyor 1 continuously circulates; its lower bottom side is cleaned by the second cleaning mechanism 9 and the first cleaning mechanism 90 in succession during the return trip. The brush roller 93 rotates at high speed to brush the surface of the steel belt, thereby cleaning the steel belt; at the same time, the bristles of the brush roller 93 periodically scrape against the stop bar 922 during rotation, and bend under the obstruction of the stop bar 922 and the protrusion 923. At this time, the water flow sprayed from the cleaning nozzle 921 washes away the impurities in the bristles, thereby achieving self-cleaning of the brush.

[0045] In the second cleaning mechanism 9, the brush bristles that come into contact with the steel belt first come into contact with the water inside the cleaning tank 92, at which point some of the impurities adhering to the brush bristles are removed. Then, the brush bristles complete the secondary cleaning by the action of the baffle 922 and the cleaning nozzle 921.

[0046] Due to the overflow pipe 94 in the second cleaning mechanism 9, excess water will automatically overflow, thus maintaining a constant working water level. The filter assembly 97 ensures that the overflowing water must pass through it before being discharged, thus trapping suspended solids such as soybean residue and protein flocculants, achieving primary purification of the cleaning water. The telescopic component 98, which is either a cylinder or an electric push rod, connects to the filter assembly 97, allowing it to move up and down. The guide rod assembly 96 ensures smooth movement. This design allows for adjustment of the working water level in the cleaning tank according to actual needs, offering high flexibility.

[0047] In this application, a backflush pipe 99 is installed through the bend 95, with the outlet end of the backflush pipe 99 facing the filter assembly 97. The backflush pipe 99 and the cleaning nozzle 921 of the second cleaning mechanism 9 are connected to the output end of the cleaning pump 1 through pipe 1 and pipe 2, respectively. A solenoid valve is installed on pipe 1. At this time, the liquid level inside the cleaning tank 92 needs to be lower than the lowest end of the brush roller 93, and the bristles of the brush roller 93 do not contact the liquid level inside the cleaning tank 92. In use, when it is necessary to backwash the filter assembly 97, the bend 95 and the filter assembly 97 are first moved upward by the telescopic member 98 until the bottom end of the filter assembly 97 is above the liquid level. The solenoid valve installed on pipe 1 is opened, and water is passed through the backflush pipe 99. At this time, the filter assembly 97 is backwashed by the backflush pipe 99. The high-pressure water jet is sprayed out from the backflush pipe 99 in reverse, directly impacting the filter assembly 97, washing away the impurities attached to its surface, and restoring its smooth flow. The whole process does not require disassembly and cleaning.

[0048] The relatively clean water, filtered by the second cleaning mechanism 9, is connected to the return tank B through the outlet end of the overflow pipe 94. A second cleaning pump is installed in the return tank B, which delivers water to the cleaning nozzle 921 of the first cleaning mechanism 90 located at the beginning of the production line via pipe four. Since the steel belt contacted by the first cleaning mechanism 90 is relatively dirty, the wastewater after rinsing it passes through the return pipe at its bottom, undergoes preliminary filtration by the filter mechanism on pipe three, and then enters the return tank A. The cleaning pump in the return tank A supplies water to the cleaning nozzle 921 and backwash pipe 99 of the second cleaning mechanism 9; this forms a stepped circulating water system, greatly improving water resource utilization.

[0049] In the above process, after the bean curd skin is lifted from the first steel belt conveyor 1, the first steel belt conveyor 1 inevitably retains some soy milk and bean curd skin residue. Therefore, in order to collect this residue, as follows: Figure 2 At the end of the first steel belt conveyor 1, a scraper is provided close to the upper layer of the single-layer steel belt. The scraper is inclined and located on one side of a collection trough 13. The bottom of the collection trough 13 is connected to a drain pipe 131. A recycling bin 80 is located directly below the drain pipe 131. A filter screen 8 is installed at the port of the recycling bin 80. A recycling pump is installed inside the recycling bin 80 to pump the slurry in the recycling bin 80 to the soybean milk storage tank 7 / closing trough 70. As the first steel belt conveyor 1 moves continuously, the scraper uses its relative movement with the steel belt of the first steel belt conveyor 1 to completely scrape off the solidified residual bean curd skin from the surface of the steel belt. The inclined design of the scraper also serves as a guide, naturally guiding the scraped-up bean curd skin and residual soy milk towards the predetermined direction—that is, into the collection tank 13 below. The slurry flowing out of the collection tank 13 must be filtered through the filter screen 8 before entering the recycling tank 80. The function of the filter screen 8 is to intercept any small pieces of bean curd skin, air bubbles, or other impurities that may be contained in the slurry. When the filtered pure slurry accumulates to a certain amount in the tank, the recycling pump is activated, pumping the slurry back to the soy milk storage tank 7 at the front end of the production line or directly into the feeding trough 70 through the pipeline. This constitutes a closed-loop slurry recycling system.

[0050] like Figure 3An inverted U-shaped frame D15 and a U-shaped frame E16 are installed on both sides of the feeding trough 70. The top of the U-shaped frame D15 is connected to a vertically movable scraper rod via an adjusting screw 151. The inner top side of the U-shaped frame E16 is connected to a scraper plate that rests against the upper surface of the single-layer steel strip via an elastic telescopic rod. The end of the scraper plate has a silicone / rubber layer in contact with the upper surface of the single-layer steel strip. The scraper rod is connected to the U-shaped frame D15 via the adjusting screw 151. By rotating the adjusting screw, the height of the scraper rod above the ground, i.e., the gap between its blade and the surface of the steel strip, can be precisely controlled. This gap directly determines the basic thickness of the soybean milk film remaining on the steel strip. Operators can flexibly and precisely adjust this thickness according to product specifications, such as producing thick or thin bean curd sticks. The scraper plate is connected to the U-shaped frame E16 via the elastic telescopic rod, ensuring it always gently rests against the upper surface of the single-layer steel strip. This elastic pressure is gentler than the rigid positioning of the scraper bar; the scraper plate has a silicone or rubber layer at its end; this soft material can perfectly fit the surface of the steel belt, thus intercepting the soy milk dripping onto the first steel belt conveyor 1 and preventing the soy milk from flowing down from one end of the first steel belt conveyor 1.

[0051] It is understood that, when producing bean curd sheets and tofu skins, the present invention can eliminate the need for the slitting conveyor 2, the rounding conveyor 3, and the finished product conveyor 6. At the same time, it is not necessary to set up a material guiding structure consisting of a U-shaped frame B55, a side plate 56, a guide plate 57, and a guide baffle 58 at the end of the corresponding slitting conveyor 5.

[0052] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steel belt type dried bean curd processing device, characterized in that: Includes a first steel belt conveyor (1), and a plurality of air blowers (10) are arranged sequentially along the conveying direction of the first steel belt conveyor (1). The air blowers (10) are horizontally positioned above the first steel belt conveyor (1), and the length direction of the air blowers (10) is perpendicular to the conveying direction of the first steel belt conveyor (1). A first cleaning mechanism (90) and a second cleaning mechanism (9) are provided below the first steel belt conveyor (1); the first cleaning mechanism (90) and the second cleaning mechanism (9) are arranged sequentially along the moving direction of the lower layer of the single-layer steel belt of the first steel belt conveyor (1); The first cleaning mechanism (90) and the second cleaning mechanism (9) both clean the bottom side of the single-layer steel belt of the first steel belt conveyor (1); The first cleaning mechanism (90) and the second cleaning mechanism (9) both include a cleaning tank (92) connected to the frame of the first steel belt conveyor (1) via a connecting column (91), and a brush roller (93) is rotatably installed between the opposite side walls of the cleaning tank (92). A number of cleaning nozzles (921) and a baffle (922) are installed on the side wall of the cleaning tank (92) away from the end of the first steel belt conveyor (1). A number of protrusions (923) are provided on the side of the baffle (922) near the brush roller (93). When the bristles of the brush roller (93) come into contact with the stop bar (922), they bend under the blocking action of the stop bar (922), and at this time, the impurities adhering to the bristles are washed away by the liquid flow sprayed from the cleaning nozzle (921).

2. The steel belt type dried bean curd processing device according to claim 1, characterized in that, The bottom of the cleaning tank (92) of the second cleaning mechanism (9) is provided with a vertical overflow pipe (94). The overflow pipe (94) is located at the bottom of the cleaning tank (92). The baffle (922) and the overflow pipe (94) are located on both sides of the brush roller (93). The top of the overflow pipe (94) is connected to a curved part (95) with the opening end facing downward.

3. The steel belt type dried bean curd processing device according to claim 2, characterized in that, The overflow pipe (94) is a corrugated pipe. At least one guide rod assembly (96) is connected between the bend (95) and the inner bottom side of the cleaning tank (92). The port of the bend (95) is connected to the filter assembly (97). A telescopic component (98) is also provided, which is connected to the bend (95) and drives the bend (95) to move up and down. A backflush pipe (99) is provided through the bend (95), and the outlet end of the backflush pipe (99) is directly opposite the filter assembly (97). The backflush pipe (99) and the cleaning nozzle (921) of the second cleaning mechanism (9) are respectively connected to the output end of the cleaning pump one through pipe one and pipe two. A solenoid valve is provided on pipe one.

4. The steel belt type dried bean curd processing device according to claim 3, characterized in that, The bottom of the cleaning tank (92) of the first cleaning mechanism (90) is provided with a return pipe. The return pipe is connected to the return tank A through the pipe three. A filter mechanism is provided on the pipe three between the return pipe and the return tank A. The cleaning pump is installed in the return tank A. The outlet end of the overflow pipe (94) is connected to the top of the return tank B. The return tank B is equipped with a second cleaning pump, which is connected to the cleaning nozzle (921) of the first cleaning mechanism (90) through a fourth pipe.

5. The steel belt type dried bean curd processing device according to claim 1, characterized in that, Above the first steel belt conveyor (1), a guide roller (11), an inclined conveyor (12), a slitting conveyor (2), a rounding conveyor (3), a drying mechanism (4), a cutting conveyor (5), and a finished product conveyor (6) are fixed by a support column (14).

6. The steel belt type dried bean curd processing device according to claim 5, characterized in that, The finished product conveying mechanism (6), slitting conveying mechanism (5), drying mechanism (4), rounding conveying mechanism (3), slitting conveyor (2), inclined conveyor (12) and guide roller (11) are arranged sequentially along the conveying direction of the first steel belt conveyor (1); The conveying directions of the slitting conveyor (5), the rounding conveyor (3), the slitting conveyor (2), and the inclined conveyor (12) are on the same plane as the conveying direction of the first steel belt conveyor (1).

7. A steel belt type dried bean curd processing device according to claim 5 or 6, characterized in that, The slitting conveyor (2) is a second steel belt conveyor. A slitting mechanism (21) is provided above the second steel belt conveyor. The slitting mechanism (21) includes a main shaft. Several annular blades are detachably installed on the main shaft at equal intervals along its length. The frame of the second steel belt conveyor is equipped with bearing seats supported by vertical rods at both ends, and the two ends of the main shaft are respectively installed on the two bearing seats; A sprocket A is installed at one end of the main shaft, and a sprocket B is installed at the end of the drive roller / driven roller of the second steel belt conveyor. The sprocket A and sprocket B are connected by a chain drive.

8. The steel belt type dried bean curd processing device according to claim 3, characterized in that, The drying mechanism (4) includes a rectangular chamber, in which a roller conveyor is installed. An air inlet and an exhaust outlet are respectively provided at the bottom and top of the chamber.

9. The steel belt type dried bean curd processing device according to claim 1, characterized in that, The end of the first steel belt conveyor (1) is provided with a scraper that is close to the upper layer of the single-layer steel belt. The scraper is inclined and is located on one side of a collection trough (13). The bottom of the collection trough (13) is connected to a drain pipe (131). A recycling bin (80) is located directly below the drain pipe (131). A filter screen (8) is installed at the port of the recycling bin (80).

10. A steel belt type dried bean curd processing device according to claim 9, characterized in that, A feeding trough (70) is installed directly above the feed end of the first steel belt conveyor (1), and the length direction of the feeding trough (70) is perpendicular to the conveying direction of the first steel belt conveyor (1); it also includes a soybean milk storage tank (7), the bottom of which is connected to a slurry conveying pipe (71), which is installed inside the feeding trough (70); the bottom side of the feeding trough (70) is provided with several slurry discharge ports along its length direction; The recycling bin (80) is equipped with a recycling pump that pumps the slurry in the recycling bin (80) to the soybean milk storage tank (7) / spreading trough (70); Inverted U-shaped frames D (15) and E (16) are installed on both sides of the fabric trough (70). The top of the U-shaped frame D (15) is connected to a scraper rod that moves up and down via an adjusting screw (151). The inner top side of the U-shaped frame E (16) is connected to a scraper plate that abuts against the upper surface of the single-layer steel strip via an elastic telescopic rod. The end of the scraper plate is provided with a silicone / rubber layer that contacts the upper surface of the single-layer steel strip.

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