Automatic cleaning device for the surface of a roller of a heat treatment furnace

Abstract

The application discloses a kind of heat treatment furnace roller surface automatic cleaning device, it is related to heat treatment furnace roller cleaning technical field, including support frame, motor is fixed on the support frame, the output end of the motor is interconnected with the leftmost roller shaft, and the roller shaft bearing is connected on support frame.The heat treatment furnace roller surface automatic cleaning device, in the second cleaning mechanism, scraper keeps 0.5mm-1mm interval with roller shaft when not detecting metal particle tumor, avoid long-term contact friction and cause roller shaft abrasion, when scraping metal particle tumor, hydraulic quick response control, cooperate with the elastic action of second spring and make scraper and roller shaft flexible contact, both ensure scraping effect, and can buffer the impact force of scraper to roller shaft, reduce roller shaft damage, at the same time, hydraulic oil backflow design makes scraper reset slowly, ensure that scraping process is coherent, further avoid roller shaft surface to appear scratch, effectively prolong the service life of roller shaft and cleaning device, reduce equipment maintenance cost and downtime repair time.

Description

Technical Field

[0001] This invention relates to the field of heat treatment furnace roller cleaning technology, specifically to an automatic cleaning device for the surface of heat treatment furnace rollers. Background Technology

[0002] In the heat treatment process of metal workpieces, the roller conveyor of the heat treatment furnace is the core component for workpiece transport, and its surface cleanliness directly affects the transport stability and heat treatment quality. During the heat treatment process, workpieces will generate impurities such as oxide scale and metal chips. These impurities are very easy to adhere to the surface of the roller conveyor. Especially in the high-temperature heat treatment environment, some metal chips will melt at high temperature and then cool, firmly adhering to the roller surface, forming metal particle protrusions.

[0003] Currently, existing roller cleaning methods mostly employ manual cleaning or a single mechanical cleaning structure. Manual cleaning is not only labor-intensive and inefficient, but also poses safety hazards due to the high ambient temperature around the heat treatment furnace, making it difficult to achieve real-time and comprehensive cleaning of the roller surface. A single mechanical cleaning mechanism can only remove loosely adhered debris from the roller surface and cannot effectively remove firmly adhered metal particles. After long-term use, metal particles on the roller surface can cause workpiece displacement and scratches during transport, affecting workpiece processing accuracy. At the same time, it will also accelerate roller wear, shorten roller life, increase equipment maintenance costs and downtime for repairs, and seriously affect the continuous and stable operation of the heat treatment production line. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic cleaning device for the surface of a heat treatment furnace roller conveyor, comprising a support frame, a motor fixed on the support frame, the output end of the motor being connected to the leftmost roller shaft, the roller shaft bearings being connected to the support frame, and the roller shafts being evenly distributed on the support frame, a first cleaning mechanism being installed on the support frame, the first cleaning mechanism being located on the side of the roller shaft, and the roller shafts and the first cleaning mechanism being distributed in a one-to-one correspondence, the first cleaning mechanism achieving the cleaning and self-cleaning function of debris on the surface of the roller shaft, and a horizontal plate being evenly fixed on the support frame, the horizontal plate being equipped with a second cleaning mechanism distributed in a one-to-one correspondence with the roller shafts, the second cleaning mechanism achieving the detection and scraping function of metal particles adhering to the surface of the roller shaft.

[0006] Preferably, a sprocket is fixed to the rear end face of the roller, and the sprockets on two adjacent rollers are connected to each other by a chain. Through the transmission action between the chain and the sprocket, the material can be conveyed normally, ensuring the normal operation of the device.

[0007] Preferably, the first cleaning mechanism includes a drive gear symmetrically fixed on the rotating shaft of the roller, and the drive gear and the driven gear are meshed together. The driven gear is symmetrically fixed on the rotating shaft of the cleaning roller, and the cleaning roller is rotatably connected to the support frame through the rotating shaft. The cleaning roller contacts the roller shaft to achieve the cleaning effect. When the roller shaft rotates, it drives the drive gear to rotate synchronously. With the meshing transmission between the drive gear and the driven gear, the cleaning roller can rotate in the opposite direction relative to the roller shaft. With the sliding action between the cleaning roller and the roller shaft, the automatic cleaning of debris and impurities on the roller shaft surface can be achieved.

[0008] Preferably, a drive wheel is fixed on the rotating shaft of the cleaning roller, and the drive wheel is connected to the driven wheel through a transmission belt to achieve a transmission effect. The driven wheel is fixed on the reciprocating screw, and the reciprocating screw bearing is connected to the support frame. When the cleaning roller rotates, it can synchronously drive the drive wheel to rotate. The transmission effect between the drive wheel, the transmission belt and the driven wheel can provide a basic force for the rotation of the reciprocating screw, ensuring the normal operation of the device.

[0009] Preferably, the reciprocating screw and the movable plate are connected to each other to enable the movable plate to move back and forth in an orderly manner. The movable plate is slidably connected to the guide rod, and the guide rod is fixed on the support frame. At the same time, the guide rod and the reciprocating screw are parallel to each other. By rotating the reciprocating screw, the movable plate can move back and forth in an orderly manner. With the sliding guidance between the movable plate and the guide rod, the stability of the movable plate's movement can be guaranteed.

[0010] Preferably, the movable plate is further fixed with an arc-shaped cleaning plate, and the concave side of the arc-shaped cleaning plate is evenly distributed with combing teeth that contact the cleaning roller. The arc-shaped cleaning plate is also provided with a chip removal groove. By moving the movable plate, the arc-shaped cleaning plate can be moved synchronously. Through the action of the combing teeth on the arc-shaped cleaning plate, the cleaning roller can be cleaned, avoiding excessive debris adhering to the surface of the cleaning roller and affecting the cleaning effect on the roller shaft. Furthermore, through the action of the chip removal groove, the debris on the concave side of the arc-shaped cleaning plate can be easily discharged.

[0011] Preferably, the second cleaning mechanism includes a main oil cylinder symmetrically fixed on a horizontal plate, and a first piston is slidably connected to the main oil cylinder. The first piston is fixed to one end of a first spring, while the other end of the first spring is fixed inside the main oil cylinder. A movable frame is fixed to the piston rod of the first piston, and a detection roller is connected to the movable frame by a bearing. The detection roller contacts and rolls with the roller shaft. By contacting and rolling with the roller shaft, the metal particles firmly adhered to the surface of the roller shaft can be detected for subsequent cleaning. Furthermore, the elastic action of the first spring provides a basic force for the automatic reset of the detection roller, ensuring the normal operation of the device.

[0012] Preferably, the main oil cylinder is connected to one end of the connecting pipe, and the other end of the connecting pipe is connected to the auxiliary oil cylinder. The auxiliary oil cylinder is fixed at equal intervals on the horizontal plate, and a fixing ring is fixed inside the connecting pipe. A rotatable baffle is connected to the side of the fixing ring near the auxiliary oil cylinder, and a torsion spring is connected between the baffle and the fixing ring. A return hole is provided on the baffle. Through the above structure, the hydraulic oil in the main oil cylinder and the auxiliary oil cylinder can flow. Through the action of the baffle and the fixing ring, the hydraulic oil in the main oil cylinder can enter the auxiliary oil cylinder more quickly, while the hydraulic oil in the auxiliary oil cylinder can only slowly flow back into the main oil cylinder, thereby ensuring the normal operation of the device.

[0013] Preferably, a second piston is slidably connected to the auxiliary oil cylinder, and a circular plate is fixed to the upper end of the second piston. The circular plate is fixed to one end of the second spring, while the other end of the second spring is fixed to the mounting frame. Sliding rods are fixed at equal intervals on the lower end face of the mounting frame, and the sliding rods are slidably connected to the circular plate and the piston rod of the second piston. By increasing or decreasing the hydraulic oil in the auxiliary oil cylinder, the second piston can be driven to move, thereby providing a basic force for the movement of the mounting frame. Combined with the elasticity of the second spring, the pressure between the scraper and the roller can be controlled to ensure the cleaning effect of the adhered metal particles.

[0014] Preferably, the mounting bracket is in contact with the scraper, and an inverted T-shaped strip is fixed to the lower end face of the scraper. The inverted T-shaped strip and the mounting bracket are slidably connected. The inverted T-shaped strip and the mounting bracket are fixed by screws. The distance between the scraper and the roller shaft is 0.5mm-1mm. With the above structure, the scraper can be easily disassembled and replaced.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This automatic cleaning device for the roller conveyor surface of the heat treatment furnace, by setting up a first cleaning mechanism and a second cleaning mechanism, which correspond one-to-one with the roller shaft to form a collaborative cleaning system, can efficiently remove loosely adhered debris and impurities from the roller shaft surface through the counter-rotation of the cleaning roller and the roller shaft. At the same time, the reciprocating motion of the arc-shaped cleaning plate realizes the self-cleaning of the cleaning roller, avoiding the cleaning roller from being blocked by debris and ensuring stable long-term cleaning effect. The second cleaning mechanism detects metal particles on the roller shaft surface in real time through the detection roller, triggering the hydraulic drive mechanism to drive the scraper to precisely scrape them off. The larger the metal particles, the greater the pressure of the scraper on the roller shaft, ensuring that the firmly adhered metal particles are completely scraped off, effectively solving the problem that existing devices cannot clean firmly adhered impurities. 2. This automatic cleaning device for the roller surface of the heat treatment furnace drives the roller shaft to rotate synchronously by a motor, and simultaneously links the first cleaning mechanism and the second cleaning mechanism to operate automatically. It can complete the real-time cleaning of the roller shaft surface without manual intervention, completely eliminating the high temperature and high-risk working environment of manual cleaning, reducing the labor intensity of operators, avoiding safety hazards, improving cleaning efficiency, and ensuring the continuous and stable operation of the heat treatment production line. 3. In the automatic cleaning device for the roller conveyor surface of this heat treatment furnace, the scraper maintains a distance of 0.5mm-1mm from the roller shaft when no metal particles are detected, avoiding long-term contact friction that could cause roller shaft wear. When scraping off metal particles, the hydraulic system provides rapid response control, and the elasticity of the second spring ensures flexible contact between the scraper and the roller shaft. This not only guarantees the scraping effect but also buffers the impact force of the scraper on the roller shaft, reducing roller shaft damage. At the same time, the hydraulic oil return design allows the scraper to slowly return to its original position, ensuring a continuous scraping process and further preventing scratches on the roller shaft surface. This effectively extends the service life of the roller shaft and the cleaning device, reducing equipment maintenance costs and downtime for repairs. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 2 This is a frontal three-dimensional structural diagram of the roller shaft of the present invention; Figure 3 This is a side-view perspective three-dimensional structural diagram of the roller shaft and the first cleaning mechanism of the present invention; Figure 4 This is a partially enlarged three-dimensional structural diagram of the first cleaning mechanism of the present invention; Figure 5 This is a frontal three-dimensional structural diagram of the horizontal plate of the present invention; Figure 6 This is a frontal three-dimensional structural diagram of the cross-section of the horizontal plate of the present invention; Figure 7 This is a frontal cross-sectional three-dimensional structural diagram of the second cleaning mechanism of the present invention; Figure 8 This is a three-dimensional structural diagram of the fixed ring and baffle in the disassembled state of the present invention.

[0017] In the diagram: 1. Support frame; 2. Motor; 3. Roller shaft; 301. Sprocket; 302. Chain; 4. First cleaning mechanism; 401. Drive gear; 402. Driven gear; 403. Cleaning roller; 404. Drive wheel; 405. Transmission belt; 406. Driven wheel; 407. Reciprocating screw; 408. Movable plate; 409. Guide rod; 410. Arc-shaped cleaning plate; 411. Chip discharge trough; 5. Horizontal plate; 6. Second cleaning mechanism; 601, main oil cylinder; 602, first piston; 603, first spring; 604, movable frame; 605, detection roller; 606, connecting pipe; 607, auxiliary oil cylinder; 608, fixing ring; 609, baffle; 610, return hole; 611, second piston; 612, circular plate; 613, second spring; 614, mounting bracket; 615, slide bar; 616, scraper; 617, inverted T-shaped strip. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 This invention provides a technical solution: an automatic cleaning device for the surface of a heat treatment furnace roller conveyor, comprising a support frame 1, a motor 2 fixed on the support frame 1, the output end of the motor 2 being connected to the leftmost roller 3, the roller 3 being bearing connected to the support frame 1, and the rollers 3 being evenly distributed on the support frame 1, a first cleaning mechanism 4 being installed on the support frame 1, the first cleaning mechanism 4 being located on the side of the roller 3, and the rollers 3 and the first cleaning mechanism 4 being distributed in a one-to-one correspondence, the first cleaning mechanism 4 achieving the cleaning and self-cleaning function of debris on the surface of the roller 3, and a horizontal plate 5 being evenly fixed on the support frame 1, the horizontal plate 5 being equipped with a second cleaning mechanism 6 distributed in a one-to-one correspondence with the roller 3, the second cleaning mechanism 6 achieving the detection and scraping function of metal particles adhering to the surface of the roller 3.

[0020] A sprocket 301 is fixed to the rear end face of the roller shaft 3, and the sprockets 301 on two adjacent roller shafts 3 are connected to each other by a chain 302; the first cleaning mechanism 4 includes a drive gear 401 symmetrically fixed to the rotating shaft of the roller shaft 3, and the drive gear 401 and the driven gear 402 are meshed together, and the driven gear 402 is symmetrically fixed to the rotating shaft of the cleaning roller 403. At the same time, the cleaning roller 403 is rotatably connected to the support frame 1 through the rotating shaft, and the cleaning roller 403 contacts the roller shaft 3 to achieve the cleaning effect; a drive wheel 404 is also fixed to the rotating shaft of the cleaning roller 403, and the drive wheel 404 is connected to the driven wheel 406 through a transmission belt 405. The transmission function is achieved, and the driven wheel 406 is fixed on the reciprocating screw 407. The reciprocating screw 407 is connected to the support frame 1 by a bearing. The reciprocating screw 407 is connected to the movable plate 408 so that the movable plate 408 can move back and forth in an orderly manner. The movable plate 408 is slidably connected to the guide rod 409, and the guide rod 409 is fixed on the support frame 1. The guide rod 409 and the reciprocating screw 407 are parallel to each other. An arc-shaped cleaning plate 410 is also fixed on the movable plate 408. The concave side of the arc-shaped cleaning plate 410 has evenly distributed combing teeth that contact the cleaning roller 403. The arc-shaped cleaning plate 410 is also provided with a chip discharge groove 411. When using the automatic cleaning device for the roller conveyor surface of this heat treatment furnace, such as Figures 1-8 As shown, the roller shaft 3 is driven to rotate by the motor 2. With the transmission between the sprocket 301 and the chain 302, multiple roller shafts 3 can rotate synchronously in the same direction to convey the workpiece that needs to be heat treated. When the roller shaft 3 rotates, it synchronously drives the drive gear 401 to rotate. With the meshing transmission between the drive gear 401 and the driven gear 402, the cleaning roller 403 can rotate. The rotation direction of the cleaning roller 403 is exactly opposite to the rotation direction of the roller shaft 3. Through the rotation of the cleaning roller 403, the debris and impurities attached to the surface of the roller shaft 3 can be cleaned to ensure that the surface of the roller shaft 3 is clean. During the cleaning process of the cleaning roller 403 rotating to clean the surface of the roller shaft 3, the cleaning roller 403 can synchronously drive the drive wheel 404 to rotate. With the transmission action between the drive wheel 404, the transmission belt 405 and the driven wheel 406, the reciprocating screw 407 can rotate. The reciprocating screw 407 can drive the movable plate 408 to perform orderly back-and-forth reciprocating motion. With the sliding guidance action between the movable plate 408 and the guide rod 409, the stability of the movement of the movable plate 408 can be ensured. When the movable plate 408 moves, the arc-shaped cleaning plate 410 is driven to move synchronously. Through the combing teeth on the arc-shaped cleaning plate 410, the debris adhering to the cleaning roller 403 can be cleaned, thereby ensuring the cleaning effect of the cleaning roller 403 on the roller shaft 3. The cleaned debris can be discharged through the chip discharge groove 411. In summary, the cleaning roller 403 can clean the loosely adhered debris and impurities on the surface of the roller shaft 3. The second cleaning mechanism 6 includes a main oil cylinder 601 symmetrically fixed on a horizontal plate 5, with a first piston 602 slidably connected to the main oil cylinder 601. The first piston 602 is fixed to one end of a first spring 603, while the other end of the first spring 603 is fixed inside the main oil cylinder 601. A movable frame 604 is fixed to the piston rod of the first piston 602, and a detection roller 605 is connected to the movable frame 604 via a bearing. The detection roller 605 contacts and rolls with the roller shaft 3. One end of the main oil cylinder 601 is connected to a connecting pipe 606, and the other end of the connecting pipe 606 is connected to an auxiliary oil cylinder 607. The auxiliary oil cylinders 607 are fixed at equal intervals on the horizontal plate 5. A fixing ring 608 is fixed inside the connecting pipe 606. A rotatable baffle 609 is connected to the side of the fixing ring 608 closest to the auxiliary oil cylinder 607, and the baffle 609 is connected to the fixing ring. A torsion spring is connected between 608, and a return hole 610 is provided on the baffle 609; a second piston 611 is slidably connected to the auxiliary oil cylinder 607, and a circular plate 612 is fixed to the upper end of the second piston 611. The circular plate 612 is fixed to one end of the second spring 613, and the other end of the second spring 613 is fixed to the mounting bracket 614. Slide rods 615 are fixed at equal intervals on the lower end face of the mounting bracket 614, and the slide rods 615 are slidably connected to the circular plate 612 and the piston rod of the second piston 611; the mounting bracket 614 contacts the scraper 616, and an inverted T-shaped strip 617 is fixed to the lower end face of the scraper 616. The inverted T-shaped strip 617 is slidably connected to the mounting bracket 614, and the inverted T-shaped strip 617 is fixed to the mounting bracket 614 by screws. The distance between the scraper 616 and the roller 3 is 0.5mm-1mm. During the operation of the device, such as Figures 1-8As shown, when debris and impurities adhere firmly to the surface of roller 3 due to the high temperature of heat treatment, cleaning roller 403 cannot effectively clean the firmly adhered debris. At this time, the firmly adhered debris forms metal particle protrusions on the surface of roller 3. When roller 3 rotates, it synchronously drives the metal particle protrusions to rotate. When the metal particle protrusions periodically contact the detection roller 605, due to the fluid characteristics of the hydraulic system and the inertia of the mechanical structure, there is a certain physical lag in the transmission of the detection signal and the response of the actuator. When the metal particle protrusions rotate to contact the detection roller 605, the action of the metal particle protrusions... The downward force causes the probe roller 605 to move downward relative to the main oil cylinder 601, thereby driving the movable frame 604 and the first piston 602 to move downward synchronously. At this time, the first spring 603 is compressed, and through the downward movement of the first piston 602, the hydraulic oil stored in the main oil cylinder 601 can be transported to the auxiliary oil cylinder 607 through the connecting pipe 606. At this time, under the force of the hydraulic oil flow, the baffle 609 can be flipped, so that the hydraulic oil in the auxiliary oil cylinder 607 can enter the auxiliary oil cylinder 607 more quickly through the large hole on the fixed ring 608, achieving a rapid response and shortening the response time, so that the scraper 616 can be fully utilized. As the hydraulic oil in the auxiliary oil cylinder 607 increases, the second piston 611 moves upward under pressure, simultaneously driving the circular plate 612, the second spring 613, the mounting bracket 614, and the scraper 616 upward. When the scraper 616 disengages from the roller shaft 3, the hydraulic oil allows the circular plate 612 to move relative to the mounting bracket 614. Combined with the sliding action between the circular plate 612 and the slide rod 615, the stability of the circular plate 612's movement is ensured. This causes the second spring 613 to contract under pressure. Through the elastic action of the second spring 613, the scraper 616 can move relative to the roller shaft. Pressure is generated to scrape off metal nodules on the roller 3. Due to the set sliding gap between the mounting bracket 614 and the slide bar 615, and the pre-compression and linear deformation range of the second spring 613, when the second piston 611 moves upward, it first compresses the second spring 613 through the circular plate 612, accumulating pre-tension. Subsequently, it drives the mounting bracket 614 and the scraper 616 to move upward as a whole. When the scraper 616 contacts the surface of the roller 3, if it encounters a metal nodule, due to the compressibility of the hydraulic oil and the buffering effect of the second spring 613, the scraper 616 does not make a rigid impact, but rather achieves flexible contact. Specifically, the larger the metal nodule, the longer the downward stroke of the probe roller 605, the more oil discharged from the main oil cylinder 601, the higher the oil pressure in the auxiliary oil cylinder 607, and the greater the compression of the second spring 613. This results in a corresponding increase in the positive pressure of the scraper 616 on the surface of the roller 3, adapting to the scraping resistance of nodules of different sizes. When the metal particle rotates to separate from the detection roller 605, the first spring 603, under its elastic action, causes the detection roller 605 and the first piston 602 to move upward and reset. At this time, under negative pressure, the hydraulic oil in the auxiliary oil cylinder 607 flows back into the main oil cylinder 601. Because the baffle 609, under the elastic action of the torsion spring, resets and blocks the large hole on the fixing ring 608, the returning hydraulic oil can only flow back into the auxiliary oil cylinder 607 through the smaller return hole 610 on the baffle 609. This ensures that the hydraulic oil can return into the auxiliary oil cylinder 607 only after the metal particle separates from the detection roller 605. The slow return of hydraulic oil ensures that the scraper 616 remains in contact with the roller throughout the entire process of the metal particles passing through its working area. This prevents missed scraping or scratching of the roller surface due to excessively rapid reset. After the metal particles on the roller 3 surface are scraped off, the first spring 603 and the second spring 613 can reset the probe roller 605 and the scraper 616 to allow for the next cleaning. After the scraper 616 is reset, it is separated from the roller 3 to a safe distance of 0.5mm-1mm, which can effectively reduce the impact on the service life of the roller 3 caused by prolonged contact friction.

[0021] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An automatic cleaning device for the surface of a heat treatment furnace roller conveyor, comprising a support frame (1), characterized in that: A motor (2) is fixed on the support frame (1). The output end of the motor (2) is connected to the leftmost roller (3). The roller (3) is connected to the support frame (1) by a bearing. The rollers (3) are evenly distributed on the support frame (1). A first cleaning mechanism (4) is installed on the support frame (1). The first cleaning mechanism (4) is located on the side of the roller (3). The rollers (3) and the first cleaning mechanism (4) are distributed in a one-to-one correspondence. The first cleaning mechanism (4) is used to clean and self-clean the debris on the surface of the roller (3). A horizontal plate (5) is also fixed at equal intervals on the support frame (1). A second cleaning mechanism (6) is installed on the horizontal plate (5) and is distributed in a one-to-one correspondence with the roller (3). The second cleaning mechanism (6) is used to detect and scrape off the metal particles adhering to the surface of the roller (3).

2. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 1, characterized in that: The rear end face of the roller (3) is fixed with a sprocket (301), and the sprockets (301) on two adjacent rollers (3) are connected to each other by a chain (302).

3. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 1, characterized in that: The first cleaning mechanism (4) includes a drive gear (401) that is symmetrically fixed on the rotating shaft of the roller (3), and the drive gear (401) and the driven gear (402) are meshed. The driven gear (402) is symmetrically fixed on the rotating shaft of the cleaning roller (403), and the cleaning roller (403) is rotatably connected to the support frame (1) through the rotating shaft. The cleaning roller (403) contacts the roller shaft (3) to achieve the cleaning effect.

4. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 3, characterized in that: The cleaning roller (403) has a drive wheel (404) fixed on its rotating shaft. The drive wheel (404) is connected to the driven wheel (406) via a transmission belt (405) to achieve transmission. The driven wheel (406) is fixed on the reciprocating screw (407), and the reciprocating screw (407) is connected to the support frame (1) by a bearing.

5. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 4, characterized in that: The reciprocating screw (407) and the movable plate (408) are connected to each other so that the movable plate (408) can move back and forth in an orderly manner. The movable plate (408) is slidably connected to the guide rod (409), and the guide rod (409) is fixed on the support frame (1). At the same time, the guide rod (409) and the reciprocating screw (407) are parallel to each other.

6. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 5, characterized in that: An arc-shaped cleaning plate (410) is also fixed on the movable plate (408), and combing teeth that contact the cleaning roller (403) are evenly distributed on the concave side of the arc-shaped cleaning plate (410), and a chip discharge groove (411) is also provided on the arc-shaped cleaning plate (410).

7. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 1, characterized in that: The second cleaning mechanism (6) includes a main oil cylinder (601) symmetrically fixed on the horizontal plate (5), and a first piston (602) is slidably connected on the main oil cylinder (601). The first piston (602) is fixed to one end of the first spring (603), while the other end of the first spring (603) is fixed inside the main oil cylinder (601). A movable frame (604) is fixed on the piston rod of the first piston (602), and a detection roller (605) is connected to the movable frame (604) by a bearing. The detection roller (605) contacts and rolls with the roller shaft (3).

8. The automatic cleaning device for the surface of the roller conveyor of a heat treatment furnace according to claim 7, characterized in that: The main oil cylinder (601) is connected to one end of the connecting pipe (606), and the other end of the connecting pipe (606) is connected to the auxiliary oil cylinder (607). The auxiliary oil cylinder (607) is fixed on the horizontal plate (5) at equal intervals. Meanwhile, a fixing ring (608) is fixed inside the connecting pipe (606). A rotatable baffle (609) is connected to the side of the fixing ring (608) near the auxiliary oil cylinder (607). A torsion spring is also connected between the baffle (609) and the fixing ring (608). Meanwhile, a return hole (610) is opened on the baffle (609).

9. An automatic cleaning device for the surface of a heat treatment furnace roller conveyor according to claim 8, characterized in that: The auxiliary oil cylinder (607) is also slidably connected to a second piston (611), and a circular plate (612) is fixed to the upper end of the second piston (611). The circular plate (612) is fixed to one end of the second spring (613), while the other end of the second spring (613) is fixed to the mounting bracket (614). The mounting bracket (614) is fixed with sliding rods (615) at equal intervals on the lower end face, and the sliding rods (615) are slidably connected to the circular plate (612) and the piston rod of the second piston (611).

10. An automatic cleaning device for the surface of a heat treatment furnace roller conveyor according to claim 9, characterized in that: The mounting bracket (614) contacts the scraper (616), and an inverted T-shaped strip (617) is fixed on the lower end face of the scraper (616). The inverted T-shaped strip (617) and the mounting bracket (614) are slidably connected. The inverted T-shaped strip (617) and the mounting bracket (614) are fixed by screws. The distance between the scraper (616) and the roller (3) is 0.5mm-1mm.

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