A down suction device and processing method for down processing

Abstract

This invention belongs to the field of textile technology, specifically a down-collecting device and processing method for down processing. It includes a down-filling hopper, an adjusting unit at one end of which contains a down-washing unit, and a pressure-relief unit within the down-washing unit. The invention uses an electric telescopic rod to move a filter plate inside the down-filling hopper away from the three-phase motor until the down inside the hopper is compressed to a designated area on one end of the electronic scale. Simultaneously, a crank connecting rod rotates, and a pressure-relief plate, under the control of a panel, rotates at a certain angle within the filter plate. This allows for real-time control of the alignment between the filter holes in the pressure-relief plate and the mesh of the filter plate. During this process, a pressure-relief valve extracts gas from inside the down-filling hopper to the outside, ensuring a vacuum in the down-retention area, eliminating the influence of air buoyancy, reducing airflow interference, effectively avoiding static electricity, improving the accuracy of the electronic scale's weight measurement, and ultimately improving product quality control precision.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, specifically relating to a down-collecting device and processing method for down processing. Background Technology

[0002] Down processing: Through processing methods such as raw material collection, cleaning and impurity removal, drying, grading and screening, fluffing and filling of finished products, the feathers of poultry such as ducks or geese are processed into qualified down products.

[0003] Quantitative down filling machine: Utilizing the fluid kinetic energy of airflow, down material is transported through a down filling pipe into the down filling hopper. Subsequently, an electronic scale is used to measure the weight of the down remaining in the down filling hopper per unit time. That is, the buoyancy of the airflow on the down is used for weighing: In a specific airflow environment (with constant airflow pressure and velocity), the down is subjected to an upward buoyancy force, the magnitude of which is equal to the weight of the down. Finally, the quantitative down is filled into the product through air pressure.

[0004] In practice, factors such as high-load operation of the down filling equipment, poor lubrication, or poor ventilation can all lead to abnormal operating temperatures of the down filling equipment under constant temperature conditions. However, temperature changes will cause changes in air density. According to the ideal gas law, under the condition that other conditions remain unchanged, as the temperature rises, the air density decreases and the air mass decreases; as the temperature falls, the air density increases and the air mass increases, resulting in changes in the pressure and velocity of the output airflow, which are nonlinear and unstable.

[0005] In addition, when the airflow passes through the down filling pipe, it is continuously subjected to frictional resistance from the inner wall of the pipe and local resistance from various obstacles in the pipe (such as valves, elbows, or filters), which further reduces the pressure and velocity of the airflow, thereby reducing the accuracy of the airflow in measuring the weight of the down. Summary of the Invention

[0006] The purpose of this invention is to provide a down suction device and processing method for down processing, thereby improving the residence environment of down inside the down filling hopper, reducing the influence of the external environment on gas pressure and flow rate, and thus improving the stability of the interaction between down and electronic scale, and fully ensuring the consistency of down filling quality in a single batch.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a down suction device for down processing, comprising a down filling hopper, characterized in that: an adjustment unit is provided at one end of the down filling hopper, a down washing unit is provided in the adjustment unit, and a pressure relief unit is provided in the down washing unit;

[0008] An electronic scale is installed at the other end of the filling hopper. A weighing pan is snapped onto the end of the electronic scale near the filling hopper. A sorting box, which is also snapped onto the same end of the weighing pan away from the electronic scale, is snapped onto the middle of the end face of the weighing pan. A bracket is symmetrically distributed at both ends of the outside of the sorting box. A de-sinking valve, which is also snapped onto the sorting box, is snapped onto the middle of one bracket. An inlet valve, which is connected to the inside of the filling hopper, is snapped onto the outer wall of one side of the filling hopper.

[0009] The adjustment unit includes:

[0010] The frame is snapped into place at the middle of the end face of the down filling hopper on the side furthest from the down separating box;

[0011] The three-phase motor is snapped onto the shaft at the end of the frame furthest from the filling hopper.

[0012] The electric telescopic pole is installed at the output end of a three-phase motor via a mounting plate.

[0013] An angle post is snapped onto the end of the electric telescopic pole furthest from the three-phase motor.

[0014] The air column is snapped on at the end of the corner post away from the electric telescopic rod, and the arrow plate at the end near the axis of the corner post is slidably snapped on with the outer wall of the air column.

[0015] The filter plate is mounted on the end of the air column away from the corner column by means of a bearing rotational fit; and the filter plate is fitted and slidably snapped into the filling hopper; in addition, the filter plate has a hollow internal structure, consisting of upper and lower templates snapped together.

[0016] The air ring is rotatably fitted onto the outer wall of the corner post at the end furthest from the air column.

[0017] The pressure relief unit includes:

[0018] One stepper motor is installed on the corner of the filter plate near the three-phase motor end face via a base clip.

[0019] The crank is snapped onto the output end of the stepper motor and is built into the filter plate.

[0020] The connecting rod is rotatably mounted on the other end of the crank; in addition, the air ring is snapped into the inner wall of the end of the filling hopper away from the distribution box via the connecting rod.

[0021] The panel is rotatably mounted on the other end of the connecting rod.

[0022] The pressure relief plate is snapped onto the other end of the panel and is positioned directly opposite the filter plate.

[0023] The filter holes are evenly distributed in the pressure relief plate, and the diameter of the filter holes is the same as that of the filter plate holes, and their positions correspond one-to-one.

[0024] The pressure relief valve is snap-fitted and installed in the middle of the outer wall on one side of the down filling hopper.

[0025] Preferably, the lint washing unit includes:

[0026] Arrow plates are installed inside the down filling hopper;

[0027] The air chamber is snapped into place at the middle position of one end face of the arrow plate;

[0028] At least one sealing tube is snapped into place at the middle position of the end face of the air chamber on the side away from the arrow plate.

[0029] Two ring plates are symmetrically snapped together at both ends of the inner wall of the sealing tube;

[0030] The plumb bob is set at the axial end of the sealing tube and is slidably snapped together with the ring plate.

[0031] The plunger is snapped into place at the end of the plumb rod furthest from the arrow plate.

[0032] The horn cap is snapped into place in the middle of the outer wall of the plunger.

[0033] Two wedges are symmetrically snapped onto both ends of the arrow plate near the horn cap and are distributed parallel to the air chamber.

[0034] The straight plate is snapped onto the end of the wedge plate away from the arrow plate.

[0035] Preferably, a column is provided on the side of the wedge plate away from the air chamber, which is snapped onto the arrow plate. A scraper is snapped onto the end of the column away from the arrow plate, and the scraper has a right-angled trapezoidal cross-section. A telescopic spring is sleeved on the outer wall of the column and located between the arrow plate and the straight plate. A short connecting plate is provided on the end face of the scraper near the air chamber, which is snapped onto the straight plate. The short connecting plate and the scraper are distributed in a close fit. In addition, the height of the short connecting plate is less than the height of the scraper, and the length and cross-sectional shape are the same. There are three sets of air holes evenly distributed circumferentially on the outer wall of the plunger. The air holes do not overlap with the horn cap. An air groove connected to the air holes is opened at the axis of the plumb rod. A column groove connected to the air groove is opened inside the air chamber.

[0036] Preferably, four straight rods are evenly distributed circumferentially on one end face of the arrow plate, and are engaged with it. The ends of the four straight rods away from the arrow plate are slidably engaged with a ring sleeve, and the outer wall of the ring sleeve has a serpentine groove. A return spring is sleeved on the outer wall of the straight rods and located between the ring sleeve and the arrow plate. An end plate is engaged with the side wall of the arrow plate near the straight rods. A bell base is engaged with the end plate near the ring sleeve. A spring rod is positioned opposite the bell base on the side of the bell sleeve. A bell plug is engaged with the end of the spring rod near the arrow plate, and the bell plug has a T-shaped cross-section. A strip plate is engaged with the middle position of the outer wall of the spring rod. A ball bearing is slidably engaged with the serpentine groove on the end of the strip plate near the ring sleeve.

[0037] Preferably, corner strips are detachably installed at the four corners of the outer wall of the filling hopper by bolts, the bracket is detachably installed with the weighing pan by bolts, and a rotating roller is installed at the other end of the bracket and the filling box in a rotating cooperation.

[0038] Preferably, the diameter of the filter hole is larger than that of the plunger and equal to the diameter of the opening end of the horn cap; the interior of the air ring is hollow, and the air ring and the spring rod are installed in a through-type sliding snap-fit ​​fit; the air inlet pipe is snap-fitted and installed on the end face of the air ring away from the air column, and the air inlet end of the air inlet pipe penetrates the outer wall of the filling hopper.

[0039] Preferably, the corner column has a right-angled groove that is connected to the interior of the hollow ring, and the air column has a band groove that is connected to both the right-angled groove and the column groove, and the cross-sectional diameter of the band groove is larger than that of the column groove.

[0040] Preferably, the pressure relief valve is distributed parallel to the air intake pipe.

[0041] Preferably, the length of the air chamber is less than half the length of the filter plate, the vertical distance between adjacent plungers is consistent with the vertical distance between adjacent holes in the filter plate, and the number and position of the plungers correspond one-to-one with the number of holes in a single radial direction. The length of the scraper is half the length of the shorting plate, and the ends of the plungers and scrapers that are closer to or further away from the air column are tangent to the end face of the filter plate.

[0042] The method for precisely controlling the weight of down during the down suction process involves using a down suction device for down processing, as described above. The specific steps are as follows:

[0043] S1: First, the down is transported into the down filling hopper through the down inlet valve. Then, the crank connecting rod drives the panel to deflect the pressure relief plate at a specified angle inside the filter plate. This precisely controls the cross-sectional area of ​​the flow channel between the filter holes in the pressure relief plate and the filter plate mesh, ensuring the consistency of the gas flow rate per unit time.

[0044] S2: Next, control the corner column through the electric telescopic rod to drive the air column and filter plate to move away from the three-phase motor until the vertical distance between the filter plate and the electronic platform scale is constant. At the same time, close the infeed valve and the defeed valve, and open the pressure relief valve until the gas inside the filling hopper is exhausted.

[0045] S3: Finally, the corner column, under the action of the electric telescopic rod, controls the air column to drive the filter plate back to the initial position. At the same time, the pressure relief valve is closed and the down inlet valve and down outlet valve are opened. Through the interaction between the ball and the serpentine groove, the bell plug hits the bell seat when the ring rotates, thereby realizing that the arrow plate rotates and bounces back and forth along the axis of the air column. During this process, the down in the end face and holes of the filter plate is cleaned through the linkage between the horn cap, air hole and scraper.

[0046] The present invention has the following beneficial effects:

[0047] 1. This invention utilizes the telescopic action of an electric telescopic rod to cause an air column, controlled by an angle column, to move the filter plate away from the three-phase motor inside the down filling hopper until the down is compressed to a designated area at one end of the electronic scale. Simultaneously, the crank connecting rod rotates, and the pressure relief plate, controlled by the panel, rotates at a certain angle within the filter plate. This controls the alignment between the filter holes in the pressure relief plate and the mesh of the filter plate in real time. During this process, the gas inside the down filling hopper is extracted to the outside through a pressure relief valve. Finally, the pressure relief plate re-covers the mesh of the filter plate, further ensuring the vacuum of the space where the down stays, eliminating the influence of air buoyancy, reducing airflow interference, effectively avoiding the influence of static electricity, improving the accuracy of weight measurement on the electronic scale, and thus improving the precision of product quality control.

[0048] 2. This invention utilizes the interaction between the ball bearings and the serpentine groove to cause the strip plate to rotate simultaneously with the spring rod, guided and supported by the empty ring. Using the axis of the corner column as a reference, it controls the movement of the bell plug towards the bell seat, until the arrow plate, supported by the air column, moves towards the filter plate. This achieves continuous reciprocating movement along the air column axis while the arrow plate rotates, thereby prompting the plunger, horn cap, and scraper to clean the filter plate end face and the down in the pores. This ensures smooth gas flow, guarantees a stable depressurization process and uniform gas pressure release, quickly and effectively reduces system pressure, and improves depressurization efficiency.

[0049] 3. This invention changes the contact volume between the plunger and the filter plate when the plunger passes through the filter holes by using a horn cap, increasing the friction between them and enhancing the cleaning effect of the plunger on the filter holes during the process. At the same time, the interaction between the air hole and the horn cap enhances the degree of turbulence between the gas and the filter plate. Turbulence can change the speed and direction of the airflow, increase the kinetic energy of the airflow, and cause the airflow to impact the down with higher kinetic energy, thereby strengthening the impact force and improving the efficiency of down detaching from the filter plate. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0051] Figure 2 This is an appendix to the present invention. Figure 1 Front view of the structure.

[0052] Figure 3 This is the left view of the structure in the accompanying drawings of this invention (aa is the boundary line of the down filling hopper).

[0053] Figure 4 This is a three-dimensional view of the internal structure of the down filling bucket of the present invention.

[0054] Figure 5 This is an appendix to the present invention. Figure 4Left view of the middle structure.

[0055] Figure 6 This is an appendix to the present invention. Figure 4 Front view of the structure.

[0056] Figure 7 This is an appendix to the present invention. Figure 4 Cross-sectional view of the three-dimensional structure.

[0057] Figure 8 This is a three-dimensional view of a portion of the lint washing unit of the present invention.

[0058] Figure 9 This is an appendix to the present invention. Figure 8 Formal diagram of the local structure.

[0059] Figure 10 This is a three-dimensional cross-sectional view of the pressure relief unit of the present invention.

[0060] The diagram is labeled as follows: 1. Filling hopper; 2. Adjustment unit; 3. Washing unit; 4. Pressure relief unit.

[0061] 11. Angle bar; 12. Electronic platform scale; 13. Weighing pan; 14. Lint separator box; 15. Support frame; 16. Lint removal valve; 17. Lint inlet valve; 18. Rotary roller;

[0062] 21. Frame; 22. Three-phase motor; 23. Electric telescopic mast; 24. Angle column; 25. Air column; 26. Filter plate; 27. Air ring; 28. Inlet pipe;

[0063] 281. Right-angle slot; 282. Band slot;

[0064] 31. Arrow plate; 32. Air chamber; 33. Sealing ring; 34. Ring plate; 35. Vertical rod; 36. Plunger; 38. Wedge plate; 39. Straight plate;

[0065] 311. Column; 312. Scraper; 313. Telescopic spring; 314. Short plate; 315. Air hole; 316. Air groove; 317. Column groove;

[0066] 321. Straight rod; 322. Ring sleeve; 323. Return spring; 324. End plate; 325. Clock base; 326. Spring rod; 327. Clock stopper; 328. Strip plate; 329. Ball bearing;

[0067] 41. Stepper motor; 42. Crank; 43. Connecting rod; 44. Panel; 45. Pressure relief plate; 46. Filter hole; 47. Pressure relief valve. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0069] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0070] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0071] Reference Figure 1 and Figure 3 It is known that a down suction device for down processing includes a down filling hopper 1, an adjustment unit 2 is provided at one end of the down filling hopper 1, a down washing unit 3 is provided in the adjustment unit 2, and a pressure relief unit 4 is provided in the down washing unit 3.

[0072] Reference Figure 1 and Figure 2 It can be seen that corner strips 11 are detachably installed on the four corners of the outer wall of the down filling hopper 1 by bolts. An electronic platform scale 12 is set at the other end of the down filling hopper 1. A weighing pan 13 is snapped onto the end of the electronic platform scale 12 near the down filling hopper 1. A down separating box 14, which is snapped onto the middle of the end face of the weighing pan 13 away from the electronic platform scale 12, is snapped onto the same end as the down filling hopper 1. Supports 15 are symmetrically distributed at both ends of the outside of the down separating box 14. The support 15 and the weighing pan 13 are detachably installed by bolts. A down removal valve 16, which is snapped onto the same end as the down separating box 14, is snapped onto the middle of one end of the support 15. A down inlet valve 17, which is connected to the inside of the down filling hopper 1, is snapped onto the outer wall of one side of the down filling hopper 1. A rotating roller 18 is installed on the other end of the support 15 and the down separating box 14 in a rotatable cooperation.

[0073] Filling hopper 1: On the one hand, the filling hopper 1 provides stable protection for the internal washing unit 3 and pressure relief unit 4, that is, it isolates the interaction channels between them and the external environment, avoids external dust, moisture, chemicals or air from corroding the components in the washing unit 3 and pressure relief unit 4, and reduces the probability of impact damage to the components in the aforementioned units by external forces such as external impact, collision or squeezing.

[0074] On the other hand, it isolates the influence of temperature changes in the external environment on the components in the washing unit 3 and the pressure relief unit 4 to a certain extent, indirectly improving the weighing accuracy of the down by the electronic platform scale 12 in the later stage. At the same time, it can effectively shield the interference of external electromagnetic fields, that is, radiate or absorb external electromagnetic fields to protect the internal components from interference.

[0075] Corner strip 11: On the one hand, it facilitates the connection between the equipment and external equipment, and enhances the overall operational stability of the equipment. On the other hand, it further strengthens the protection of the down filling hopper 1, enhances its strength and rigidity, reduces deformation and twisting, improves stress distribution, reduces local stress concentration, increases heat dissipation area and guides the direction of heat flow, thereby improving the service life and performance of the down filling hopper 1.

[0076] A simple weighing process for down feathers:

[0077] First, down is continuously fed into the down filling hopper 1 through the down inlet valve 17 via an external pressure device and down filling pipe. During this process, the down falling onto the weighing pan 13 area is dispersed to a certain extent by the continuously rotating roller 18, which improves the uniformity of down distribution in the weighing pan 13 and avoids local stacking, thereby indirectly improving the uniformity of down filling in the later stage. In specific implementation, the roller 18 can be rotated by an external motor.

[0078] Next, the down falling into the weighing pan 13 per unit time is electronically weighed by the electronic platform scale 12 (in specific implementation, when the down enters the area where the weighing sensor is located, the sensor is deformed by pressure, causing a change in resistance value. After that, the weighing sensor converts the weight of the down into an electrical signal and transmits it to the control system. Finally, the control system compares and adjusts the preset weight value and the actual weight value fed back by the sensor).

[0079] Finally, down exceeding the specified weight is returned to the external filling pipe through the down removal valve 16 (the connection stability between the down removal valve 16 or the roller 18 and the down distribution box 14 is improved by the bracket 15, ensuring the smoothness of the down removal channel and indirectly improving the weighing efficiency during the filling process). (The specific down removal process of the down removal valve 16 can refer to the airflow reverse blowing method, mechanical vibration assisted down removal method or vacuum suction down removal principle in the existing quantitative down filling machine).

[0080] Down sorting box 14: It helps to realize parallel operation of different zones, thereby reducing interference between different tasks, improving work accuracy and stability, ensuring the consistency and uniformity of the external environment for a single down weighing, and indirectly improving the reliability of down weighing.

[0081] Reference Figure 3 , Figure 4 and Figure 5It can be seen that the adjustment unit 2 includes: a frame 21, which is snapped onto the middle position of the end face of the filling hopper 1 away from the filling box 14; a three-phase motor 22, which is snapped onto the shaft of the frame 21 away from the filling hopper 1; an electric telescopic rod 23, which is snapped onto the output end of the three-phase motor 22 via a mounting plate; a corner post 24, which is snapped onto the end of the electric telescopic rod 23 away from the three-phase motor 22; and an air column 25, which is snapped onto the end of the corner post 24 away from the electric telescopic rod 23, and the end of the arrow plate 31 near the axis of the corner post 24 is slidably snapped onto the outer wall of the air column 25.

[0082] The filter plate 26 is rotatably mounted on the end of the air column 25 away from the corner post 24 via a bearing, and the filter plate 26 is slidably and snap-fitted with the filling hopper 1. Furthermore, the filter plate 26 has a hollow internal structure, consisting of upper and lower templates snap-fitted together, and the diameter of the filter hole 46 is larger than that of the plunger 36, equal to the diameter of the opening end of the horn cap. The air ring 27 is rotatably mounted on the outer wall of the corner post 24 away from the air column 25, and is snap-fitted with the inner wall of the filling hopper 1 away from the filling box 14 via a connecting rod 43. Furthermore, the air ring 27 has a hollow internal structure, and the air ring 27 is slidably and snap-fitted with the spring rod 326. The air inlet pipe 28 is snap-fitted onto the end face of the air ring 27 away from the air column 25, and the air inlet end of the inlet pipe penetrates the outer wall of the filling hopper 1.

[0083] Reference Figure 1 and Figure 10 It can be seen that the pressure relief unit 4 includes: a stepper motor 41, which is installed at the corner of the end face of the filter plate 26 near the three-phase motor 22 via a base; a crank 42, which is installed at the output end of the stepper motor 41 and is built into the filter plate 26; a connecting rod 43, which is rotatably installed at the other end of the crank 42; a panel 44, which is rotatably installed at the other end of the connecting rod 43; a pressure relief plate 45, which is installed at the other end of the panel 44 and is directly opposite to the filter plate 26; filter holes 46, which are evenly opened in the pressure relief plate 45 and have the same diameter as the holes in the filter plate 26, and their positions correspond one-to-one; and a pressure relief valve 47, which is installed at the middle of the outer wall of the filling hopper 1 and is parallel to the air inlet pipe 28.

[0084] Reference Figure 4 and Figure 7 It can be seen that the corner column 24 has a right-angle groove 281 that is connected to the interior of the hollow ring 27, and the air column 25 has a band groove 282 that is connected to both the right-angle groove 281 and the column groove 317, and the cross-sectional diameter of the band groove 282 is larger than that of the column groove 317.

[0085] The process by which filter plate 26 pushes down from inside the down filling hopper 1 into the down separating box 14:

[0086] Under the control of the electric telescopic rod 23, the corner column 24 synchronously causes the air column 25 to drive the filter plate 26 to move towards the down distribution box 14 (with the axis of the electric telescopic rod 23 as the reference) until the filter plate 26 reaches the deformation dividing end of the down filling hopper 1. In specific implementation, the electric telescopic rod 23 drives the corner column 24 to rotate under the drive of the three-phase motor 22 (that is, the corner column 24 rotates around the axis of the electric telescopic rod 23 while reciprocating along the axis of the electric telescopic rod 23 under the combined action of the three-phase motor 22 and the electric telescopic rod 23).

[0087] During this process, the connection between the three-phase motor 22 and the down filling hopper 1 is strengthened by the frame 21, thereby reducing the impact of the working vibration of the three-phase motor 22 on the normal operation of the adjustment unit 2, the washing unit 3 and the pressure relief unit 4.

[0088] The purpose of assembling the filter plate 26 from two molds is twofold: firstly, it facilitates rapid assembly and disassembly, reducing the labor intensity of maintenance personnel; secondly, it helps reduce manufacturing costs, improve versatility, better withstand the pressure impact generated during operation, and thus improve operational safety.

[0089] The specific depressurization process of the depressurization unit 4 for the gas inside the down filling hopper 1 (closing the down inlet valve 17 and the down outlet valve 16, and weighing the down):

[0090] First, the pressure relief valve 47 is opened and operated for a period of time. After that, the crank 42, under the control of the stepper motor 41, synchronously drives the connecting rod 43 to rotate.

[0091] Next, through the control panel 44 via the connecting rod 43, the pressure relief plate 45 is synchronously driven to deflect at a specified angle under the support and guidance of the filter plate 26. When the pressure relief plate 45 deflects, the filter holes 46 on it gradually correspond to and are cleared in the holes of the filter plate 26 (in the initial state, the filter holes 46 and the holes of the filter plate 26 are completely closed to each other).

[0092] The purpose of controlling the positive orientation (flow cross-sectional area between the two) between the pores in filter plate 26 and filter holes 46 is:

[0093] By adjusting the cross-sectional area of ​​the pressure relief channel, the rate at which gas is released from the high-pressure area to the low-pressure area can be precisely controlled. A smaller cross-sectional area will restrict the flow of gas and slow down the pressure release rate, while a larger cross-sectional area will accelerate the pressure release rate, thereby improving the stability of the pressure relief system.

[0094] Meanwhile, the flow channels with different cross-sectional areas can assist in further screening of down of different qualities. That is, the quality of down entering the down filling hopper 1 in a single flow also has a hierarchical nature. When the filter plate 26 pushes the down to flow into the down distribution box 14 area, the down that can pass through the aforementioned filter plate 26 and pressure relief plate 45 flow channels under the reverse force of the gas is unqualified down (such down can flow to the external collection device through the pressure relief valve 47. In specific implementation, the pressure relief power can be provided to the pressure relief valve 47 by an external pressure pump).

[0095] In addition, by controlling the cross-sectional area of ​​the pressure relief channel, the pressure can be released gradually, reducing the impact of pressure shock. That is, a smaller cross-sectional area can make the pressure release more gradual, reduce the intensity of pressure shock, and thus improve the service life of the corresponding components (e.g., the down filling hopper 1 and the filter plate 26).

[0096] The process of external gas flowing into the filling hopper 1:

[0097] In practice, gas from an external gas storage device can be pumped into the filling hopper 1 via an external pressure pump through an air inlet pipe 28. Subsequently, the gas delivered through the air inlet pipe 28 flows into the air ring 27 first. Then, under the action of gas kinetic energy, the gas travels along the right-angle groove 281 and the band groove 282 until it reaches the designated activity area. (Note that the inflation process is after the aforementioned depressurization process. Even if the two are carried out simultaneously, the inflation volume per unit time must be lower than the gas outflow volume per unit time. In practice, relevant valves and calculation data can be used as a reference for the implementation of the scheme.)

[0098] Reference Figure 3 , Figure 8 and Figure 9 It can be seen that the washing unit 3 includes: an arrow plate 31, which is disposed inside the filling hopper 1; an air cavity 32, which is snapped onto the middle position of one end face of the arrow plate 31; a sealing tube, at least one, which is snapped onto the middle position of the end face of the air cavity 32 away from the arrow plate 31; two ring pieces 34, which are symmetrically snapped onto both ends of the inner wall of the sealing tube; and a vertical rod 35, which is disposed at the axial end of the sealing tube and is slidably snapped onto the ring pieces 34.

[0099] The plunger 36 is snapped onto the end of the vertical rod 35 away from the arrow plate 31; the horn cap is snapped onto the middle position of the outer wall of the plunger 36; there are two wedge plates 38, which are symmetrically snapped onto the two ends of the end face of the arrow plate 31 near the horn cap and are distributed parallel to the air chamber 32; the straight plate 39 is snapped onto the end of the wedge plate 38 away from the arrow plate 31.

[0100] Reference Figure 8 and Figure 9It can be seen that a column 311 is installed on the side of the wedge plate 38 away from the air chamber 32, which is snapped onto the arrow plate 31. A scraper 312 is snapped onto the end of the column 311 away from the arrow plate 31, and the cross-sectional shape of the scraper 312 is a right trapezoid. A telescopic spring 313 is sleeved on the outer wall of the column 311 and is located between the arrow plate 31 and the straight plate 39. A short connecting plate 314 is installed on the end face of the scraper 312 near the air chamber 32, which is snapped onto the straight plate 39. Furthermore, the short connecting plate 314 and the scraper 312 are distributed in a close fit. In addition, the height of the short connecting plate 314 is less than the height of the scraper 312, and the length and cross-sectional shape are the same. The outer wall of the plunger 36 has three sets of air holes 315 evenly distributed in the circumference. The air holes 315 and the horn cap are not stacked. The vertical rod 35 has an air groove 316 connected to the air hole 315 at the axis. The air cavity 32 has a column groove 317 connected to the air groove 316 inside.

[0101] Reference Figure 4 , Figure 5 and Figure 6 It can be seen that four straight rods 321 are evenly distributed circumferentially on one side of the arrow plate 31, and are engaged with it. A ring sleeve 322 is slidably engaged with the end of the four straight rods 321 away from the arrow plate 31. A serpentine groove is formed on the outer wall of the ring sleeve 322. A return spring 323 is sleeved on the outer wall of the straight rods 321, located between the ring sleeve 322 and the arrow plate 31. An end plate 324 is engaged with the side wall of the arrow plate 31 near the straight rods 321. A clock base 325 is snapped onto one end of the clock base 324 near the ring 322. A spring rod 326 is positioned opposite the clock base 325 on the side of the ring 322. A clock plug 327 is snapped onto one end of the spring rod 326 near the arrow plate 31. The clock plug 327 has a T-shaped cross-section. A strip plate 328 is snapped onto the middle of the outer wall of the spring rod 326. A ball bearing 329, which is slidably snapped onto the strip plate 328 near the ring 322, is slidably installed on the strip plate 328.

[0102] The length of the air chamber 32 is less than half the length of the filter plate 26. The vertical distance between adjacent plungers 36 is consistent with the vertical distance between adjacent holes in the filter plate 26. The number and position of the plungers 36 correspond one-to-one with the number and position of the holes in a single radial direction. The length of the scraper 312 is half the length of the shorting plate 314. The plungers 36 and the scraper 312 are both tangent to the end face of the filter plate 26 at the end closest to and away from the air column 25.

[0103] The cleaning process of down adhering to the filter plate 26 on the side away from the down separating box 14 in the down washing unit 3:

[0104] Driven by the three-phase motor 22, the electric telescopic rod 23 rotates, and the air column 25 drives the arrow plate 31 to rotate synchronously through the corner column 24. The rotating arrow plate 31 then drives the scraper 312 to move relative to the end face of the filter plate 26 (in specific implementation, the telescopic spring 313 is in a compressed state in the initial state, that is, the scraper 312 and the filter plate 26 maintain a certain interaction force at this time), thereby removing the down attached to the end face of the filter plate 26.

[0105] During this process, the gas that flows into the band groove 282 through the air inlet pipe 28 flows into the air groove 316 through the column groove 317, and finally flows into the scraper 312 and filter plate 26 through the air hole 315. Due to the complexity of the layout between the air hole 315 and the scraper 312 (there are influences between them such as the horn cap, filter plate 26, air cavity 32 or arrow plate 31, which further increases the irregularity of the gas flow when the scraper 312 rotates, the turbulence can change the speed and direction of the airflow, increase the kinetic energy of the airflow, and make the airflow impact the down with higher kinetic energy, strengthen the impact force, and improve the efficiency of the down leaving the filter plate 26).

[0106] The down cleaning unit 3 cleans the down adhering to the pores of filter plate 26:

[0107] As ring 322 rotates synchronously with corner post 24:

[0108] The ball bearing 329 moves relative to the ball bearing 329 in the ring sleeve 322. That is, under the limiting action of the serpentine groove, the ball bearing 329 drives the spring rod 326 through the strip plate 328 and is guided by the empty ring 27 to control the movement of the bell plug 327 towards the bell base 325 until the two collide (and under the squeezing action of the bell plug 327, the bell base 325 drives the arrow plate 31 to move towards the filter plate 26 in the direction of the air column 25 axis through the end plate 324, and the single movement distance of the arrow plate 31 is greater than the depth of the pores in the filter plate 26. In addition, the coverage area of ​​the arrow plate 31 and the air cavity 32 on the outer wall of the air column 25 is sufficient to support the column groove 317 to still be connected with the band groove 282 when the position changes).

[0109] The reset process of arrow plate 31:

[0110] When the bell plug 327 returns to its initial position, the arrow plate 31 moves away from the filter plate 26 under the coordinated action of the friction force of the outer wall of the air column 25 and the restoring force of the return spring 323 (at this time, the straight rod 321 slides and retracts inside the same direction ring 322) until the scraper 312 is tangent to the end face of the filter plate 26 again (and due to the elastic properties of the extension spring 313, when the arrow plate 31 moves towards the filter plate 26, the scraper 312 slides and retracts towards the arrow plate 31, so that there will be no limiting collision that affects the movement of the arrow plate 31 by the scraper 312).

[0111] As the arrow plate 31 rotates, it simultaneously reciprocates along the axis of the air column 25. (In practice, the rotation of the arrow plate 31 can be achieved intermittently by a three-phase motor 22. Furthermore, there is a correlation between the intermittent rotation of the arrow plate 31 and its reciprocating motion in the opposite direction along the axis of the air column 25, thereby ensuring that the plunger 36 can pass smoothly through the mesh of the filter plate 26. The specific correlation data can be provided by external calculation.)

[0112] When the arrow plate 31 reciprocates along the axis of the air column 25:

[0113] At this time, driven by the arrow plate 31, the plunger 36 continuously passes through the mesh of the filter plate 26 and the pressure relief plate 45 in an indirect and alternating manner (at this time, the mesh of the filter hole 46 and the mesh of the filter plate 26 are completely opposite). During this process, the down adhering to the mesh of the filter plate 26 and the filter hole 46 is removed by the horn cap (the purpose of the horn cap opening facing the filter plate 26 is to effectively reduce the down adhering rate when the horn cap exits the mesh). Similarly, the gas impacted outward through the air hole 315 enhances the cleaning ability and effect of the horn cap (the gas can effectively dry the down and reduce its stickiness).

[0114] During this process, when the scraper 312 moves toward the arrow plate 31, it will generate relative movement with the shorting plate 314. That is, the shorting plate 314 performs self-cleaning on the working end of the scraper 312, which fully ensures the cleanliness of the scraper 312 itself (the purpose of both the scraper 312 and the shorting plate 314 having right-angled trapezoidal cross-sectional shapes is to reduce the contact area at the working end and improve the scraping effect).

[0115] Ring plate 34 and vertical rod 35: The ring plate 34 guides and supports the movement of the vertical rod 35, reducing the probability of stress deformation and torsion in the sealing tube.

[0116] The working principle of the down suction device for down processing provided by the present invention is as follows: First step: First, the down is transported into the down filling hopper 1 through the down inlet valve 17. Then, the panel 44 is driven by the crank 42 and the connecting rod 43, which drives the pressure relief plate 45 to deflect at a specified angle in the filter plate 26. The cross-sectional area of ​​the flow channel between the filter hole 46 in the pressure relief plate 45 and the mesh of the filter plate 26 is precisely controlled to ensure the consistency of the gas flow rate per unit time.

[0117] Step 2: Next, the electric telescopic rod 23 controls the corner column 24, which drives the air column 25 and the filter plate 26 to move away from the three-phase motor 22 until the vertical distance between the filter plate 26 and the electronic platform scale 12 is constant. At the same time, the infeed valve 17 and the defeed valve 16 are closed, and the pressure relief valve 47 is opened until the gas inside the filling hopper 1 is exhausted.

[0118] Step 3: Finally, under the action of the electric telescopic rod 23, the corner column 24 controls the air column 25 to drive the filter plate 26 back to the initial position. At the same time, the pressure relief valve 47 is closed and the down inlet valve 17 and the down outlet valve 16 are opened. Through the interaction between the ball bearing 329 and the serpentine groove, when the ring 322 rotates, the bell plug 327 hits the bell base 325, thereby realizing that the arrow plate 31 rotates and bounces back and forth along the axis of the air column 25. During this process, the down in the end face and holes of the filter plate 26 is cleaned through the linkage between the horn cap, the air hole 315 and the scraper 312.

[0119] The present invention has the following beneficial effects.

[0120] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0121] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A down suction device for processing down, comprising a down filling hopper, characterized in that: An adjustment unit is provided at one end of the filling hopper, a washing unit is provided in the adjustment unit, and a pressure relief unit is provided in the washing unit; An electronic scale is installed at the other end of the filling hopper. A weighing pan is snapped onto the end of the electronic scale near the filling hopper. A sorting box, which is also snapped onto the same end of the weighing pan away from the electronic scale, is snapped onto the middle of the end face of the weighing pan. A bracket is symmetrically distributed at both ends of the outside of the sorting box. A de-sinking valve, which is also snapped onto the sorting box, is snapped onto the middle of one bracket. An inlet valve, which is connected to the inside of the filling hopper, is snapped onto the outer wall of one side of the filling hopper. The adjustment unit includes: The frame is snapped into place at the middle of the end face of the down filling hopper on the side furthest from the down separating box; The three-phase motor is snapped onto the shaft at the end of the frame furthest from the filling hopper. The electric telescopic pole is installed at the output end of a three-phase motor via a mounting plate. An angle post is snapped onto the end of the electric telescopic pole furthest from the three-phase motor. The air column is snapped on at the end of the corner post away from the electric telescopic rod, and the arrow plate at the end near the axis of the corner post is slidably snapped on with the outer wall of the air column. The filter plate is mounted on the end of the air column away from the corner column by means of a bearing rotational fit; and the filter plate is fitted and slidably snapped into the filling hopper; in addition, the filter plate has a hollow internal structure, consisting of upper and lower templates snapped together. The air ring is rotatably fitted onto the outer wall of the corner post at the end furthest from the air column. The pressure relief unit includes: One stepper motor is installed on the corner of the filter plate near the three-phase motor end face via a base clip. The crank is snapped onto the output end of the stepper motor and is built into the filter plate. The connecting rod is rotatably mounted on the other end of the crank; in addition, the air ring is snapped into the inner wall of the end of the filling hopper away from the distribution box via the connecting rod. The panel is rotatably mounted on the other end of the connecting rod. The pressure relief plate is snapped onto the other end of the panel and is positioned directly opposite the filter plate. The filter holes are evenly distributed in the pressure relief plate, and the diameter of the filter holes is the same as that of the filter plate holes, and their positions correspond one-to-one. The pressure relief valve is snapped onto the middle of the outer wall of one side of the down filling hopper.

2. A device for absorbing down of the down processing according to claim 1, characterized in that: The lint washing unit includes: Arrow plates are installed inside the down filling hopper; The air chamber is snapped into place at the middle position of one end face of the arrow plate; At least one sealing tube is snapped into place at the middle position of the end face of the air chamber on the side away from the arrow plate. Two ring plates are symmetrically snapped together at both ends of the inner wall of the sealing tube; The plumb line is set at the axial end of the sealing tube and is slidably snapped together with the ring plate. The plunger is snapped into place at the end of the plumb rod furthest from the arrow plate. The horn cap is snapped into place in the middle of the outer wall of the plunger. Two wedges are symmetrically snapped onto both ends of the arrow plate near the horn cap and are distributed parallel to the air chamber. The straight plate is snapped onto the end of the wedge plate away from the arrow plate.

3. The down-collecting device for down processing according to claim 2, characterized in that: A column is installed on the side of the wedge plate away from the air chamber, which is connected to the arrow plate. A scraper is installed on the end of the column away from the arrow plate, and the cross-sectional shape of the scraper is a right trapezoid. A telescopic spring is installed on the outer wall of the column between the arrow plate and the straight plate. A short plate is installed on the end face of the scraper near the air chamber, which is connected to the straight plate. The short plate and the scraper are distributed in a close fit. In addition, the height of the short plate is less than the height of the scraper, and the length and cross-sectional shape are the same. There are three sets of air holes evenly distributed circumferentially on the outer wall of the plunger. The air holes do not overlap with the horn cap. An air groove connected to the air holes is opened at the axis of the plumb rod. A column groove connected to the air groove is opened inside the air chamber.

4. The down-collecting device for down processing according to claim 3, characterized in that: Four straight rods are evenly distributed circumferentially on one end face of the arrow plate, and are engaged with it. The ends of the four straight rods away from the arrow plate are slidably engaged with a ring sleeve, and the outer wall of the ring sleeve has a serpentine groove. A return spring is sleeved on the outer wall of the straight rods and located between the ring sleeve and the arrow plate. An end plate is engaged with the side wall of the arrow plate near the straight rods. A bell base is engaged with the end plate near the ring sleeve. A spring rod is positioned opposite the end plate near the ring sleeve. A bell plug with a T-shaped cross-section is engaged with the end of the spring rod near the arrow plate. A strip plate is engaged with the middle position of the outer wall of the spring rod. A ball bearing is slidably engaged with the serpentine groove at the end of the strip plate near the ring sleeve.

5. The down-collecting device for down processing according to claim 4, characterized in that: The four corners of the outer wall of the filling hopper are detachably installed with corner strips by bolts. The bracket and the weighing pan are detachably installed by bolts. The other end of the bracket and the filling box are rotatably fitted with a rotating roller.

6. The down-collecting device for down processing according to claim 5, characterized in that: The diameter of the filter hole is larger than that of the plunger and equal to the diameter of the opening end of the horn cap; the interior of the air ring is hollow, and the air ring and the spring rod are installed in a through-type sliding snap-fit ​​fit; the air inlet pipe is snap-fitted and installed on the end face of the air ring away from the air column, and the air inlet end of the air inlet pipe penetrates the outer wall of the filling hopper.

7. A down-collecting device for down processing according to claim 6, characterized in that: The corner column has a right-angled groove that is connected to the interior of the hollow ring, and the air column has a band groove that is connected to both the right-angled groove and the column groove, and the cross-sectional diameter of the band groove is larger than that of the column groove.

8. A down-collecting device for down processing according to claim 7, characterized in that: The pressure relief valve is distributed parallel to the air intake pipe.

9. A down-collecting device for down processing according to claim 8, characterized in that: The length of the air chamber is less than half the length of the filter plate. The vertical distance between adjacent plungers is consistent with the vertical distance between adjacent holes in the filter plate. The number and position of the plungers correspond one-to-one with the number of holes in a single radial direction. The length of the scraper is half the length of the short plate. The plungers and scrapers are tangent to the end face of the filter plate at the ends closest to and furthest from the air column.

10. A method for precisely controlling the weight of down during the down suction process, wherein the down suction device for down processing as described in claim 9 is used for regulation, characterized in that: The specific steps are as follows: S1: First, the down is transported into the down filling hopper through the down inlet valve. Then, the crank connecting rod drives the panel to deflect the pressure relief plate at a specified angle inside the filter plate. This precisely controls the cross-sectional area of ​​the flow channel between the filter holes in the pressure relief plate and the filter plate mesh, ensuring the consistency of the gas flow rate per unit time. S2: Next, control the corner column through the electric telescopic rod to drive the air column and filter plate to move away from the three-phase motor until the vertical distance between the filter plate and the electronic platform scale is constant. At the same time, close the infeed valve and the defeed valve, and open the pressure relief valve until the gas inside the filling hopper is exhausted. S3: Finally, the corner column, under the action of the electric telescopic rod, controls the air column to drive the filter plate back to the initial position. At the same time, the pressure relief valve is closed and the down inlet valve and down outlet valve are opened. Through the interaction between the ball and the serpentine groove, the bell plug hits the bell seat when the ring rotates, thereby realizing that the arrow plate rotates and bounces back and forth along the axis of the air column. During this process, the down in the end face and holes of the filter plate is cleaned through the linkage between the horn cap, air hole and scraper.

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