A compressed biscuit industrial processing feeding device

Abstract

The present application relates to the technical field of compressed biscuit production equipment, in particular to a compressed biscuit industrial processing feeding device, which comprises a conveying belt, a wind cover, an air pipe, a pulling mechanism, a scraping mechanism, a cleaning mechanism and a screening mechanism; the wind cover is quickly disassembled at the bottom of the conveying belt through the pulling mechanism, the lower end of the wind cover is provided with the air pipe connected with a dust collection device, the scraping mechanism with double-layer differentiated scrapers is arranged in the wind cover to clean the belt adhered debris in stages; the sidewall of the wind cover is provided with a gear and a rack to drive the reciprocating cleaning mechanism, and the cleaning mechanism can switch between high-pressure air blowing and high-pressure water washing; the crank connecting rod vibration type screening mechanism is arranged at the discharging end of the conveying belt to separate complete biscuit blanks and broken materials. The device is additionally provided with the air pipe matched with the dust collection, and the dust collection effect is better; the pulling and locking structure realizes the tool-free quick disassembly of the wind cover, the double-layer scrapers are provided with elastic retreat buffers, the movable spray head can clean in the whole domain without dead angle, and the end vibration screening improves the yield of finished products.

Description

Technical Field

[0001] This invention relates to the field of compressed biscuit production equipment technology, and more specifically, to a feeding device for industrial processing of compressed biscuits. Background Technology

[0002] In the industrial production of compressed biscuits, raw materials and biscuit blanks are continuously fed via conveyor belts. Friction and compression of the biscuit blanks generate a large amount of debris, which easily adheres to the conveyor belt surface. Long-term accumulation of debris breeds bacteria and mold, continuously contaminating subsequent finished products. Traditional feeding equipment often uses welded, fixed hoods that cannot be quickly disassembled. Wear and tear on the internal scrapers and accumulation of debris necessitate complete machine shutdown and disassembly for cleaning, significantly reducing the efficiency of continuous production line operation. Furthermore, conventional scrapers are of a single thickness, unable to distinguish between large clumps of debris and fine dust, resulting in poor cleaning performance. The lack of accompanying dust extraction pipelines also leads to dust flying everywhere during cleaning, worsening the workshop working environment.

[0003] Existing conveyor belt cleaning devices only have fixed-point blowing nozzles, resulting in limited cleaning coverage. Stubborn, adhered debris cannot be removed by wind alone, and there is no water washing function. The conveyor belt discharge end lacks a screening component, resulting in whole biscuit blanks being discharged mixed with broken materials, reducing the yield of finished products. Conventional scrapers lack an elastic buffer structure, and hard protrusions and clumps on the conveyor belt can easily scratch the belt and break the scrapers when passing over them, leading to high equipment wear and tear costs. Most screening equipment on the market uses independent vibration motors, which have complex structures, are cumbersome to install and maintain, and cannot stably control the vibration amplitude, resulting in low screening efficiency. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a feeding device for the industrial processing of compressed biscuits.

[0005] The technical solution adopted by this invention to solve its technical problem is: a feeding device for industrial processing of compressed biscuits, including a conveyor belt, a fan sleeve, an air duct, a pulling mechanism, a scraping mechanism, a cleaning mechanism, and a screening mechanism; the fan sleeve is detachably assembled to the bottom end of the conveyor belt through the pulling mechanism; the bottom end of the fan sleeve is fixedly connected to the air duct for connection with external dust collection equipment; the scraping mechanism is located inside the fan sleeve and is used to scrape off biscuit crumbs adhering to the surface of the conveyor belt; the cleaning mechanism is slidably installed on the side wall of the fan sleeve and can reciprocate to perform air blowing or high-pressure water washing on the conveyor belt; the screening mechanism is arranged at the discharge port of the conveyor belt and is used to vibrate and screen the biscuit raw materials and separate the crumbs.

[0006] Specifically, the pull-out mechanism includes a fixed plate, a pull strip, a sliding plate, a limiting rod, a guide assembly, a first spring, a contact block, and an operating rod; two L-shaped fixed plates are symmetrically fixedly connected to the bottom end of the conveyor belt, and the pull strip is symmetrically fixedly connected to the top end of the air sleeve, with the pull strip slidingly engaged with the fixed plate; the sliding plate is slidably disposed inside the fixed plate, and the limiting rod is vertically fixedly connected to the sliding plate, with the pull strip having a limiting groove adapted to the limiting rod; the sliding plate has an inclined contact groove, and the inclined surface of the contact block fits against the inner wall of the contact groove, with the contact block connected to the operating rod extending out of the fixed plate; the guide assembly cooperates with the first spring to elastically reset the sliding plate.

[0007] Specifically, the guide assembly includes a guide block and a guide rod; the guide rod is fixedly connected to the inner cavity of the fixed plate, the guide block is vertically fixedly connected to the side end of the slide plate and slidably sleeved with the guide rod; the first spring is sleeved on the outside of the guide rod, with its two ends respectively abutting against the guide block and the inner wall of the fixed plate; a handle is provided on the outer wall of the wind sleeve.

[0008] Specifically, an inspection port is provided on the side wall of the air jacket, and the inspection port can be detachably fitted with an inspection cover; L-shaped placement plates are symmetrically fixed inside the air jacket, and the placement plates are used to support the base of the scraping mechanism.

[0009] Specifically, the scraping mechanism includes a base, a mounting plate, a first scraper, a second scraper, an adjusting bolt, a limiting plate, a second spring, and a crossbar; the two sets of bases are connected by the crossbar and mounted on the placement plate, and the mounting plate is slidably assembled inside the base; the mounting plate has a slot, and the first scraper and the second scraper are inserted into the slot, the first scraper being thicker than the second scraper.

[0010] Specifically, the adjusting bolt is threaded to the bottom of the base, passes through the base and the mounting plate, and the upper end of the adjusting bolt is fixed with a limiting plate; the two ends of the second spring are respectively connected to the base and the mounting plate, and the second spring continuously pulls the mounting plate upward.

[0011] Specifically, the cleaning mechanism includes a slide rail, a water jacket, nozzles, a water inlet pipe, a rack, a gear, and a motor; the slide rail is fixedly connected to the side wall of the air jacket, and the hollow water jacket is slidably assembled on the slide rail; the water jacket connects the water inlet pipe to several nozzles, the outer wall of the water jacket is fixedly connected to a rack, the output shaft of the motor is connected to a gear, and the gear meshes with the rack to drive the water jacket to slide back and forth.

[0012] Specifically, the nozzles are arranged in four sets. The two sets of nozzles in the middle of the water jacket are vertically oriented towards the conveyor belt, while the two sets of nozzles on the outer side are arranged at an angle. The water jacket can be switched to connect to a high-pressure blower or a high-pressure water source to realize the functions of air blowing to remove slag and high-pressure water washing, respectively.

[0013] Specifically, the screening mechanism includes an mounting sleeve, a turntable, limiting strips, a slider, a rotating rod, an extension rod, a hammer, a pulley, a transmission belt, and a screen; the mounting sleeve is fixedly connected to the bottom end of the conveyor belt, and the turntable is rotatably mounted on the mounting sleeve; the mounting sleeve symmetrically fixes the limiting strips, and the slider is slidably disposed between the limiting strips; the eccentric position of the turntable and the slider are hinged to a rotating rod to form a crank-connecting rod structure.

[0014] Specifically, an extension rod is fixed to the end of the slider, and a rubber hammer is fitted to the end of the extension rod; the screen is rotatably installed at the discharge end of the conveyor belt, and the hammer continuously abuts against the bottom surface of the screen; both the turntable shaft and the motor output shaft are equipped with pulleys, and the two sets of pulleys are synchronously driven by a transmission belt.

[0015] The beneficial effects of this invention are:

[0016] (1) An air duct is added to the bottom of the air cover. The air duct can be connected to a dust collection device to collect the biscuit crumbs and dust generated by scraping and blowing, so as to avoid dust flying and polluting the workshop and improve the hygiene environment of food production. The air cover adopts a pull-out mechanism to achieve tool-free quick disassembly and assembly. Pressing the operating lever can unlock the limit and pull out the air cover directly with the handle, which greatly shortens the downtime for equipment cleaning and maintenance and is suitable for continuous industrial production lines.

[0017] (2) The scraping mechanism adopts a double-layer scraper with different thicknesses. The thicker first scraper prioritizes scraping off large pieces of sticky biscuit clumps on the surface of the conveyor belt, while the thinner second scraper cleans up fine dust and debris, making the graded cleaning and slag removal more thorough. The scraper is fixed by slot insertion, and the base can be pulled out as a whole to replace the scraper by opening the inspection cover, making maintenance and operation simple. The adjusting bolt and the second spring form an elastic yielding buffer structure. When belt protrusions and hard clumps pass by, the scraper automatically moves down and yields, effectively preventing scraper breakage and conveyor belt scratches, and reducing the cost of component wear.

[0018] (3) The cleaning mechanism uses a motor and gear rack to drive the water jacket to move back and forth along the slide rail. The water jacket is equipped with four sets of vertical and inclined nozzles to cover the conveyor belt in all directions without cleaning dead corners. The water jacket can be switched to an external high-pressure blower or high-pressure water source. In daily production, the wind power is used to blow away dust, and when the equipment is stopped, the high-pressure water washing is switched for deep cleaning, which can meet the cleaning needs of different working conditions.

[0019] (4) The conveyor belt discharge end is equipped with a crank-connecting rod type vibrating screening mechanism. The motor drives the turntable to rotate through the pulley and transmission belt. The slider is driven to reciprocate through the eccentric connecting rod. The rubber hammer continuously strikes the screen to generate stable vibration, automatically separating the whole biscuit blanks from the small pieces, effectively improving the yield of finished products.

[0020] (5) The whole machine integrates dust collection, quick disassembly and maintenance, graded scraping, full-area blowing and washing, and vibrating screening into one integrated structure. The gap of the air sleeve can be fitted with sealing components to further reduce dust leakage. It has a compact structure and high functional integration, and is suitable for large-scale continuous feeding processing of compressed biscuits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the connection structure between the extended rod and the screen of the present invention.

[0023] Figure 3 This is a schematic diagram of the connection structure between the pull-out mechanism and the cleaning mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the connection structure between the wind cover and the scraping mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the screening mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure between the wind jacket and the water jacket of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the water jacket and the slide rail of the present invention;

[0028] Figure 8 This is a schematic diagram of the connection structure between the pull strip and the fixing plate of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection structure between the contact groove and the contact block of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection structure between the base and the first scraper and the second scraper of the present invention;

[0031] Figure 11 This is a schematic diagram of the connection structure between the two mounting plates and the crossbar of the present invention;

[0032] Figure 12 This is a schematic diagram of the connection structure between the rack and gear of the present invention.

[0033] In the diagram: 1. Conveyor belt; 2. Air jacket; 3. Air duct; 4. Pull-out mechanism; 401. Pull-out strip; 402. Fixing plate; 403. Slide plate; 404. Limiting rod; 405. Limiting groove; 406. Guide block; 407. Guide rod; 408. First spring; 409. Contact groove; 410. Contact block; 411. Operating lever; 412. Handle; 5. Scraping mechanism; 501. Base; 502. Mounting plate; 503. Slot; 504. First scraper; 505. Second scraper; 506. Adjusting bolt; 50 7. Limiting plate; 508. Second spring; 509. Crossbar; 510. Placement plate; 511. Inspection cover plate; 6. Cleaning mechanism; 601. Water jacket; 602. Nozzle; 603. Slide rail; 604. Water inlet pipe; 605. Rack; 606. Gear; 607. Motor; 7. Screening mechanism; 701. Mounting sleeve; 702. Turntable; 703. Limiting bar; 704. Sliding block; 705. Rotating rod; 706. Extension rod; 707. Hammer; 708. Pulley; 709. Transmission belt; 710. Screen. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figures 1-12 As shown, the industrial processing feeding device for compressed biscuits according to the present invention includes a conveyor belt 1, an air sleeve 2, an air duct 3, a pulling mechanism 4, a scraping mechanism 5, a cleaning mechanism 6, and a screening mechanism 7. The air sleeve 2 is detachably assembled to the bottom end of the conveyor belt 1 through the pulling mechanism 4. The bottom end of the air sleeve 2 is fixedly connected to the air duct 3, which is used to connect to an external dust collection device. The scraping mechanism 5 is set inside the air sleeve 2 and is used to scrape off biscuit crumbs adhering to the surface of the conveyor belt 1. The cleaning mechanism 6 is slidably installed on the side wall of the air sleeve 2 and can reciprocate to perform air blowing or high-pressure water washing operations on the conveyor belt 1. The screening mechanism 7 is arranged at the discharge port of the conveyor belt 1 and is used to vibrate and screen the biscuit raw materials and separate biscuit crumbs.

[0036] Specifically, the pull-out mechanism 4 includes a fixed plate 402, a pull-out bar 401, a sliding plate 403, a limiting rod 404, a guide assembly, a first spring 408, an abutment block 410, and an operating rod 411. Two L-shaped fixed plates 402 are symmetrically fixedly connected to the bottom end of the conveyor belt 1, and the pull-out bar 401 is symmetrically fixedly connected to the top end of the air sleeve 2. The pull-out bar 401 and the fixed plate 402 are slidably engaged. The sliding plate 403 is slidably assembled inside the fixed plate 402. The sliding plate 403 is vertically fixedly connected to the limiting rod 404. The pull-out bar 401 is provided with a limiting groove 405 that matches the limiting rod 404. The sliding plate 403 is provided with an abutment groove 409 with a sloping structure. The sloping surface of the abutment block 410 fits against the inner wall of the abutment groove 409. The abutment block 410 is connected to an operating rod 411 that extends out of the outside of the fixed plate 402. The guide assembly cooperates with the first spring 408 to achieve elastic reset of the sliding plate 403.

[0037] Specifically, the guide assembly includes a guide block 406 and a guide rod 407; the guide rod 407 is fixedly connected to the inner cavity of the fixed plate 402, the guide block 406 is vertically fixedly connected to the side of the slide plate 403 and slidably sleeved with the guide rod 407; the first spring 408 is sleeved on the outside of the guide rod 407, and the two ends of the first spring 408 respectively abut against the guide block 406 and the inner side wall of the fixed plate 402; a handle 412 is installed on the outer side wall of the wind sleeve 2.

[0038] Two L-shaped fixing plates 402 are symmetrically welded to the bottom of the conveyor belt 1. A pull strip 401 is fixedly connected to the top of the air sleeve 2. The pull strip 401 is embedded in the sliding groove of the fixing plate 402 to achieve sliding docking. A sliding plate 403 is horizontally slidably installed in the inner cavity of the fixing plate 402. A limiting rod 404 is vertically fixed to the front end of the sliding plate 403. Under normal conditions, the first spring 408 pushes the sliding plate 403 forward through the guide block 406, and the limiting rod 404 is inserted into the limiting groove 405 of the pull strip 401 to complete the locking. The slide plate 403 has an inclined contact groove 409, and the end of the external operating rod 411 is fixed with an inclined contact block 410. During maintenance and disassembly, pressing the operating rod 411 inward causes the contact block 410 to press against the inclined surface of the contact groove 409, moving the slide plate 403 backward. The limiting rod 404 disengages from the limiting groove 405, and the entire air sleeve 2 can be pulled out by holding the side handle 412. After releasing the operating rod 411, the first spring 408 pushes the guide block 406 to reset the slide plate 403. After reinstalling the air sleeve 2, the limiting rod 404 automatically engages with the limiting groove 405 to complete the fixation. The bottom air duct 3 of the air sleeve 2 is connected to a negative pressure dust collection device. All debris and dust generated by internal scraping and blowing are collected by the negative pressure of the air duct 3. Sealing components can be installed at the joints of the air sleeve 2 to reduce dust leakage.

[0039] Specifically, an inspection port is opened on the side wall of the air sleeve 2, and an inspection cover plate 511 can be detached and installed at the inspection port; L-shaped placement plates 510 are symmetrically fixed inside the air sleeve 2, and the placement plates 510 are used to support the base 501 of the scraping mechanism 5.

[0040] A square inspection port is reserved on the side of the fan sleeve 2, and the inspection cover plate 511 is assembled by bolts. The inside of the fan sleeve 2, L-shaped placement plates 510 are welded symmetrically on the left and right. The two placement plates 510 form a support platform on which the entire scraping mechanism 5 can be placed stably. The scraping mechanism 5 can be pulled out horizontally by opening the inspection cover plate 511 without disassembling the whole machine, which is convenient for scraper replacement and internal residue cleaning.

[0041] Specifically, the scraping mechanism 5 includes a base 501, a mounting plate 502, a first scraper 504, a second scraper 505, an adjusting bolt 506, a limiting plate 507, a second spring 508, and a crossbar 509; the two sets of bases 501 are connected by the crossbar 509 and mounted on the placement plate 510, and the mounting plate 502 is slidably assembled inside the base 501; the mounting plate 502 has a slot 503, and the first scraper 504 and the second scraper 505 are inserted into the slot 503, and the thickness of the first scraper 504 is greater than the thickness of the second scraper 505.

[0042] Specifically, the adjusting bolt 506 is threaded to the bottom of the base 501, and the adjusting bolt 506 passes through the base 501 and the mounting plate 502. The upper end of the adjusting bolt 506 is fixedly installed with the limiting plate 507. The two ends of the second spring 508 are respectively connected to the base 501 and the mounting plate 502. Under normal conditions, the second spring 508 continuously pulls the mounting plate 502 upward.

[0043] Two bases 501 are connected as one unit by a crossbar 509 and are mounted on a placement plate 510. A mounting plate 502 is vertically slidably mounted inside the base 501. A slot 503 is opened on the front of the mounting plate 502, into which a thick first scraper 504 and a thin second scraper 505 are inserted and fixed. The first scraper 504 first scrapes away large, sticky clumps of dust from the conveyor belt, while the second scraper 505 cleans fine dust. An adjusting bolt 506 is threaded onto the bottom of the base 501, passing upwards through the base 501 and mounting plate 502. A top limiting plate 507 prevents the mounting plate 502 from detaching upwards. A second spring 508 is tensioned between the base 501 and the mounting plate 502. Under normal conditions, the second spring 508 continuously pulls the scrapers upwards to adhere to the surface of the conveyor belt 1. The rotating adjusting bolt 506 can finely adjust the gap between the scraper and the belt; when there are hard protrusions or lumps on the surface of the conveyor belt 1, the scraper is squeezed downwards and the second spring 508 automatically retracts, avoiding scraper breakage and belt scratches, and achieving elastic buffer protection.

[0044] Specifically, the cleaning mechanism 6 includes a slide rail 603, a water jacket 601, a nozzle 602, a water inlet pipe 604, a rack 605, a gear 606, and a motor 607. The slide rail 603 is fixedly connected to the side wall of the air jacket 2, and the hollow water jacket 601 is slidably mounted on the slide rail 603. The water jacket 601 is connected to the water inlet pipe 604 and multiple sets of nozzles 602. The rack 605 is fixedly connected to the outer wall of the water jacket 601, and the output shaft of the motor 607 is fixedly connected to the gear 606. The gear 606 and the rack 605 mesh to drive the water jacket 601 to slide back and forth.

[0045] Specifically, there are four sets of nozzles 602. The two sets of nozzles 602 in the middle of the water jacket 601 are vertically oriented towards the surface of the conveyor belt 1, and the two sets of nozzles 602 on the outer side are arranged at an angle. The water jacket 601 can switch to connect to a high-pressure blower or a high-pressure water source to realize two cleaning functions: air blowing to remove slag and high-pressure water washing.

[0046] A horizontally fixed slide rail 603 is mounted on the outer wall of the air jacket 2, and a hollow water jacket 601 is slidably installed on the slide rail 603. The back of the water jacket 601 is connected to a water inlet pipe 604, and four sets of nozzles 602 are installed on its inner side. The middle nozzle 602 is vertically aligned with the front of the belt, and the two side nozzles 602 spray obliquely towards the sides of the belt, achieving full coverage. A rack 605 is welded to the outer side of the water jacket 601, and a matching motor 607 is fixed to the side wall of the air jacket 2. The output shaft gear 606 of the motor 607 meshes with the rack 605. The motor 607 rotates alternately in forward and reverse directions, driving the water jacket 601 to reciprocate at a uniform speed along the slide rail 603. During daily production, the water inlet pipe 604 is connected to a high-pressure blower, and the nozzles 602 continuously spray air to sweep away belt debris, while dust is simultaneously collected under negative pressure through the air duct 3. When the equipment is shut down for deep cleaning, the water inlet pipe 604 switches to a high-pressure water source, and the reciprocating nozzles 602 high-pressure wash stubborn materials adhering to the belt.

[0047] Specifically, the screening mechanism 7 includes a mounting sleeve 701, a turntable 702, a limiting strip 703, a slider 704, a rotating rod 705, an extension rod 706, a hammer 707, a pulley 708, a transmission belt 709, and a screen 710. The mounting sleeve 701 is fixedly connected to the bottom end of the conveyor belt 1, and the turntable 702 is rotatably assembled inside the mounting sleeve 701. The limiting strips 703 are symmetrically fixed on the mounting sleeve 701, and the slider 704 is slidably disposed between the two limiting strips 703. The rotating rod 705 is hinged between the eccentric position of the turntable 702 and the slider 704, together forming a crank-connecting rod transmission structure.

[0048] Specifically, an extension rod 706 is fixed to the end of the slider 704, and a rubber hammer 707 is assembled at the end of the extension rod 706; the screen 710 is rotatably installed at the discharge end of the conveyor belt 1, and the hammer 707 is always in contact with the bottom surface of the screen 710; the rotating shaft of the turntable 702 and the output shaft of the motor 607 are both equipped with pulleys 708, and the two sets of pulleys 708 achieve synchronous transmission through the transmission belt 709.

[0049] A mounting sleeve 701 is installed below the discharge end of conveyor belt 1. A turntable 702 is rotatably mounted inside the mounting sleeve 701 via bearings. The rotating shaft of the turntable 702 and the output shaft of the motor 607 of the cleaning mechanism 6 are respectively fixed to pulleys 708. The two pulleys 708 are synchronously driven by a transmission belt 709, and the motor 607 synchronously drives the turntable 702 to rotate. Two limit bars 703 are fixed parallel to each other on the mounting sleeve 701. A slider 704 is limited to sliding linearly between the two limit bars 703. A rotating rod 705 is hinged to the eccentric point of the turntable 702, and the other end of the rotating rod 705 is hinged to the slider 704, forming a crank-connecting rod mechanism. An extension rod 706 extends outward from the front end of the slider 704, and a rubber hammer 707 is fixed to the end of the extension rod 706. A screen 710 is hinged to the discharge position of conveyor belt 1, and the bottom surface of the hammer 707 continuously abuts against the bottom of the screen 710. The turntable 702 rotates continuously, driving the slider 704 to slide back and forth in a straight line. The rubber hammer 707 repeatedly strikes the screen 710 to make it vibrate at high frequency. The biscuit blanks conveyed by the conveyor belt 1 fall onto the surface of the screen 710. The complete biscuit blanks are conveyed downward along the screen 710. Small fragments pass through the mesh of the screen 710 and are collected, realizing the automatic screening and separation of finished products and fragments.

[0050] In use, the compressed biscuit raw material blanks are continuously conveyed forward by the conveyor belt 1 and first enter the air sleeve 2. The first scraper 504 and the second scraper 505, which are set in two layers, scrape off the debris adhering to the surface of the belt in stages. The cleaning mechanism 6, which is set in a reciprocating motion, continuously blows air, and the dust and debris generated are collected under negative pressure by the dust collection equipment connected to the air duct 3 at the bottom of the air sleeve 2. After the material is conveyed to the end of the conveyor belt 1, it falls into the vibrating screen 710. The crank connecting rod drives the rubber hammer 707 to continuously strike the screen 710 to complete the screening of the broken material. When the equipment needs to replace the scraper or deeply clean the internal residue, press the operating lever 411 to unlock the pull mechanism 4, pull the handle 412 to remove the air sleeve 2 as a whole, and open the maintenance cover 511 to pull out the entire scraping mechanism 5 for maintenance and replacement. After all maintenance is completed, the parts are reversed and reassembled, and the whole machine can quickly resume continuous production.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for industrial processing of compressed biscuits, characterized in that: It includes a conveyor belt (1), a fan sleeve (2), an air duct (3), a pull-out mechanism (4), a scraping mechanism (5), a cleaning mechanism (6), and a screening mechanism (7); the fan sleeve (2) is detachably assembled to the bottom end of the conveyor belt (1) through the pull-out mechanism (4); the bottom end of the fan sleeve (2) is fixedly connected to the air duct (3) for connecting to an external dust collection device; the scraping mechanism (5) is located inside the fan sleeve (2) for scraping off biscuit crumbs adhering to the surface of the conveyor belt (1); the cleaning mechanism (6) is slidably installed on the side wall of the fan sleeve (2) and can reciprocate to blow air or wash the conveyor belt (1) with high pressure water; the screening mechanism (7) is arranged at the discharge port of the conveyor belt (1) for vibrating screening of biscuit raw materials and separating crumbs.

2. The feeding device for industrial processing of compressed biscuits according to claim 1, characterized in that: The pull-out mechanism (4) includes a fixed plate (402), a pull strip (401), a sliding plate (403), a limiting rod (404), a guide assembly, a first spring (408), an abutment block (410), and an operating rod (411); two L-shaped fixed plates (402) are symmetrically fixedly connected to the bottom end of the conveyor belt (1), and the top end of the air sleeve (2) is symmetrically fixedly connected to the pull strip (401), and the pull strip (401) slides in cooperation with the fixed plate (402); the sliding plate (403) is slidably disposed on the fixed plate (402). Inside the plate (402), the sliding plate (403) is vertically fixedly connected to the limiting rod (404), and the pull strip (401) has a limiting groove (405) adapted to the limiting rod (404); the sliding plate (403) has a sloping abutment groove (409), and the abutment block (410) is slopingly attached to the inner wall of the abutment groove (409), and the abutment block (410) is connected to the operating rod (411) that passes through the fixed plate (402); the guide assembly cooperates with the first spring (408) to elastically reset the sliding plate (403).

3. The feeding device for industrial processing of compressed biscuits according to claim 2, characterized in that: The guiding assembly includes a guide block (406) and a guide rod (407); the guide rod (407) is fixedly connected to the inner cavity of the fixing plate (402), and the guide block (406) is vertically fixedly connected to the side end of the slide plate (403) and slidably sleeved with the guide rod (407); the first spring (408) is sleeved on the outside of the guide rod (407), and its two ends abut against the guide block (406) and the inner wall of the fixing plate (402) respectively; a handle (412) is provided on the outer wall of the wind sleeve (2).

4. The feeding device for industrial processing of compressed biscuits according to claim 1, characterized in that: The side wall of the air sleeve (2) has an inspection port, and the inspection port can be detachably fitted with an inspection cover plate (511); the air sleeve (2) has an L-shaped placement plate (510) symmetrically fixed inside, and the placement plate (510) is used to support the base (501) of the scraping mechanism (5).

5. The feeding device for industrial processing of compressed biscuits according to claim 4, characterized in that: The scraping mechanism (5) includes a base (501), a mounting plate (502), a first scraper (504), a second scraper (505), an adjusting bolt (506), a limiting plate (507), a second spring (508), and a crossbar (509); the two sets of bases (501) are connected by the crossbar (509) and mounted on the placement plate (510), and the mounting plate (502) is slidably assembled inside the base (501); the mounting plate (502) has a slot (503), and the first scraper (504) and the second scraper (505) are inserted into the slot (503), and the thickness of the first scraper (504) is greater than that of the second scraper (505).

6. The feeding device for industrial processing of compressed biscuits according to claim 5, characterized in that: The adjusting bolt (506) is threaded to the bottom of the base (501), and the adjusting bolt (506) passes through the base (501) and the mounting plate (502). The upper end of the adjusting bolt (506) is fixed with a limiting plate (507). The two ends of the second spring (508) are respectively connected to the base (501) and the mounting plate (502), and the second spring (508) continuously pulls the mounting plate (502) upward.

7. The feeding device for industrial processing of compressed biscuits according to claim 1, characterized in that: The cleaning mechanism (6) includes a slide rail (603), a water jacket (601), a nozzle (602), a water inlet pipe (604), a rack (605), a gear (606), and a motor (607). The slide rail (603) is fixedly connected to the side wall of the air jacket (2), and the hollow water jacket (601) is slidably assembled on the slide rail (603). The water jacket (601) connects the water inlet pipe (604) and several nozzles (602). The rack (605) is fixedly connected to the outer wall of the water jacket (601). The output shaft of the motor (607) is connected to the gear (606). The gear (606) meshes with the rack (605) to drive the water jacket (601) to slide back and forth.

8. The feeding device for industrial processing of compressed biscuits according to claim 7, characterized in that: The nozzles (602) are arranged in four groups. The two groups of nozzles (602) in the middle of the water jacket (601) are vertically oriented towards the conveyor belt (1), and the two groups of nozzles (602) on the outer side are arranged at an angle. The water jacket (601) can be switched to connect to a high-pressure blower or a high-pressure water source to realize the functions of blowing air to remove slag and high-pressure water washing, respectively.

9. The feeding device for industrial processing of compressed biscuits according to claim 1, characterized in that: The screening mechanism (7) includes a mounting sleeve (701), a turntable (702), a limiting strip (703), a slider (704), a rotating rod (705), an extension rod (706), a hammer (707), a pulley (708), a transmission belt (709), and a screen (710); the mounting sleeve (701) is fixedly connected to the bottom end of the conveyor belt (1), and the turntable (702) is rotatably mounted on the mounting sleeve (701); the mounting sleeve (701) symmetrically fixes the limiting strip (703), and the slider (704) is slidably disposed between the limiting strips (703); the eccentric position of the turntable (702) and the slider (704) are hinged to the rotating rod (705) to form a crank-connecting rod structure.

10. The feeding device for industrial processing of compressed biscuits according to claim 9, characterized in that: The slider (704) is fixed with an extension rod (706) at its end, and a rubber hammer (707) is fitted at the end of the extension rod (706); the screen (710) is rotatably installed at the discharge end of the conveyor belt (1), and the hammer (707) continuously abuts against the bottom surface of the screen (710); the rotating shaft of the turntable (702) and the output shaft of the motor (607) are both equipped with pulleys (708), and the two sets of pulleys (708) are synchronously driven by a transmission belt (709).

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