A horizontal vacuum furnace with uniform cooling

Abstract

The present invention discloses a horizontal vacuum furnace with uniform cooling, which relates to the technical field of vacuum furnaces and comprises a mounting frame, a rotating unit, a cleaning unit and a cooling unit, wherein the mounting frame is used to install and fix the rotating unit, the cleaning unit and the cooling unit, the rotating unit is used to ensure uniform cooling, the cleaning unit is used to prevent clogging inside the nozzle and ensure uniform cooling of the workpiece, the cooling unit is used to cool the workpiece, and when the workpiece needs to be cooled, the workpiece is cooled by the cooling unit, the rotating unit ensures that a cooling dead zone appears in the workpiece, and the cleaning unit cleans the inside of the nozzle at all times to avoid clogging of the nozzle, which affects the uneven flow rate of gas ejected from the nozzle, resulting in insufficient local cooling of the workpiece, excessive temperature, and causing thermal deformation and performance degradation of the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum furnaces, in particular to a horizontal vacuum furnace with uniform cooling. Background Art

[0002] As a key device for heat treating workpieces under negative pressure, vacuum furnaces play an irreplaceable role in numerous high-end industrial fields, including aerospace, automotive manufacturing, and electronics and semiconductors. Their unique vacuum environment effectively prevents chemical reactions between workpieces and gases like oxygen during heating and cooling, reducing defects like oxidation and decarburization, thereby significantly improving workpiece quality and performance.

[0003] However, as industrial production continues to demand higher quality workpieces, numerous problems with the cooling process of existing vacuum furnaces have become increasingly prominent, becoming a key factor restricting their further development and application. During the cooling process of a vacuum furnace, the flow pattern of the cooling gas plays a decisive role in the uniformity of workpiece cooling. Typically, cooling gas is injected into the furnace through air-cooling nozzles, exchanging heat with the high-temperature workpiece to achieve cooling. However, due to the complexity of the vacuum furnace's internal structure and the inherent characteristics of cooling gas flow, areas within the furnace where cooling gas is difficult to reach or flows slowly—known as cooling dead zones.

[0004] The air-cooling nozzle is a core component of a vacuum furnace's cooling system. Its performance directly affects the effectiveness of the cooling gas injection and the uniformity of workpiece cooling. However, over extended use, air-cooling nozzles inevitably become clogged. This is primarily due to the presence of tiny impurities, such as dust and metal powder, in the cooling gas. These impurities gradually accumulate inside the nozzle, causing the nozzle aperture to decrease or even become completely clogged.

[0005] When an air-cooling nozzle is clogged, the cooling gas flow rate and velocity are severely affected, disrupting uniform cooling gas distribution. On the one hand, a clogged nozzle cannot provide sufficient cooling gas to the workpiece, resulting in insufficient cooling of certain areas and excessive temperatures, which may cause thermal deformation and performance degradation. On the other hand, the increased cooling gas flow from an unblocked nozzle may cause overcooling of certain areas of the workpiece, resulting in greater thermal stress and an increased risk of cracking. Furthermore, nozzle clogs increase equipment maintenance costs and downtime, reducing production efficiency. Summary of the Invention

[0006] The object of the present invention is to provide a horizontal vacuum furnace with uniform cooling to solve the problems raised in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The horizontal vacuum furnace with uniform cooling comprises a mounting frame, a rotating unit, a cleaning unit and a cooling unit. The mounting frame is placed on a horizontal ground, the mounting frame is fixedly connected to the rotating unit, the rotating unit has a function of eliminating cooling dead zones, the cleaning unit is fixedly connected to the rotating unit, the cleaning unit has a function of avoiding blockage and ensuring uniform cooling, and the cooling unit is fixedly connected to the rotating unit.

[0009] The rotating unit includes a driving gear, an outer gear ring, a long rod ring frame and a furnace body, the driving gear is meshed with the outer gear ring, the outer gear ring is fixedly connected to the long rod, the ring frame is rotatably mounted on the furnace body, multiple ring frames are connected by long rods, and the furnace body is rotatably mounted on the mounting frame;

[0010] The cleaning unit includes a nozzle, a fan blade, a return spring, a telescopic guide rod, an outer ring gear, an inner ring gear, a polished rod, a straight rod, a special-shaped wheel, a slider, a push rod, a scraper, a fixed plate, a ring cylinder, an arc magnet, a magnetic blocking plate, an electric push rod and a double-headed electric telescopic rod. The nozzle is fixedly connected to the ring frame through a connecting rod, and the nozzle is rotatably installed in a slide groove opened in the inner cylinder of the furnace body. The adjacent nozzles are connected by an elastic membrane, the fixed end of the telescopic guide rod is fixedly connected to the fan blade, the outer ring gear is meshed with the inner ring gear, the inner ring gear is slidably installed in the nozzle, one end of the polished rod is fixedly connected to the inner ring gear, the slider is slidably installed in the sliding groove of the special-shaped wheel, the slider is electrically connected to the electric push rod, the slider is electrically connected to the double-headed electric telescopic rod, and one end of the push rod is connected to the slide The block is fixedly connected, the other end of the push rod abuts the scraper, one end of the fixed plate is connected to the scraper by a torsion spring, and the other end of the fixed plate is fixedly connected to the movable ring, and the ring cylinder is provided with a sliding groove, and the ring cylinder is composed of two half-cylinders, and the two half-cylinders are connected by an annular spring, and the ring cylinder is slidably connected to the telescopic guide rod, and the half-cylinders of the ring cylinder are fixedly connected to the two arc magnets respectively, and the magnetic blocking sheet is slidably installed between the two arc magnets, the fixed end of the electric push rod is slidably connected to the fixed frame, the telescopic end of the electric push rod is fixedly connected to the magnetic blocking sheet, the telescopic ends of both ends of the double-headed electric telescopic rod are fixedly connected to the telescopic end of the electric push rod, the fixed end of the double-headed electric telescopic rod is slidably installed on the through slot of the telescopic guide rod, and the straight rod is slidably connected to the sliding groove of the ring cylinder;

[0011] The cooling unit includes a gas tank and a gas pipe, the gas tank is fixedly connected to the gas pipe, the gas pipe extends between the outer cylinder and the inner cylinder of the furnace, and a refrigeration component is provided inside the gas tank;

[0012] A controller is provided on the mounting frame.

[0013] The mounting frame is used to install and fix the rotating unit, cleaning unit and cooling unit. The rotating unit is used to ensure uniform cooling. The cleaning unit is used to prevent clogging inside the nozzle and ensure uniform cooling of the workpiece. The cooling unit is used to cool the workpiece. When the workpiece needs to be cooled, the workpiece is cooled by the cooling unit. The rotating unit ensures that there is a cooling dead zone in the workpiece. The cleaning unit cleans the inside of the nozzle at all times to avoid clogging of the nozzle, affecting the uneven gas flow rate ejected from the nozzle, resulting in insufficient local cooling of the workpiece, excessive temperature, and causing thermal deformation and performance degradation of the workpiece.

[0014] Furthermore, the rotating unit also includes a mounting seat and a rotating motor. The mounting seat is fixedly connected to the mounting frame. The fixed end of the rotating motor is fixedly mounted on the mounting seat. The output end of the rotating motor is fixedly connected to the driving gear.

[0015] Furthermore, the rotating unit also includes an end cover, a heating component, and a heat dissipation hole. The end cover is rotatably connected to the furnace body, the heating component is fixedly installed inside the furnace body, the furnace body is provided with a heat dissipation hole, the furnace body is composed of an inner and outer tube, and the inner tube of the furnace body is provided with a slide groove.

[0016] When the workpiece needs to be cooled, the controller controls the rotation motor to start, driving the driving gear to rotate, so that the outer gear ring meshing with it rotates synchronously, thereby driving the ring frame on the furnace body to rotate, and the nozzle connected to the ring frame to rotate circumferentially inside the furnace body, so that the nozzle rotates in the process of spraying cold air, cooling the workpiece evenly and eliminating the cooling dead zone, and the gas carrying heat is discharged through the heat dissipation holes.

[0017] Furthermore, the cleaning unit also includes a fixed platform, a fixed frame and a slide cylinder, the nozzle is fixedly connected to the ring frame through a connecting rod, the fixed platform is fixedly installed on the nozzle, the fan blade is rotatably installed on the fixed platform, one end of the return spring is rotatably connected to the fixed platform, the other end of the return spring is fixedly connected to the slide cylinder, the telescopic end of the telescopic guide rod is slidably connected to the fixed frame, the slide cylinder is slidably installed on the telescopic guide rod, a through groove is provided in the telescopic guide rod, the slide cylinder is composed of two semi-arc cylinders, the two semi-arc cylinders are connected by an annular spring, and the fixed frame is fixedly connected to the nozzle.

[0018] Furthermore, the cleaning unit also includes a round rod and a movable ring, one end of the round rod is fixedly connected to the slide cylinder, the other end of the round rod is fixedly connected to the outer ring gear, the other end of the light rod is fixedly connected to the movable ring, the movable ring is slidably installed inside the nozzle, the straight rod is fixedly connected to the movable ring, the special-shaped wheel is slidably installed on the telescopic guide rod, the special-shaped wheel is provided with a sliding groove, the special-shaped wheel consists of a recessed portion and a raised portion, and the raised portion and the recessed portion of the special-shaped wheel are connected by an annular spring.

[0019] When the high-speed cold air flow enters the nozzle, the air flow pushes the fan blades to rotate around the fixed platform, thereby driving the telescopic guide rod to rotate synchronously. Initially, the scraper of the cleaning unit is located at the bottom. When the slider rotates to contact the raised part of the special-shaped wheel, the slider pushes the push rod to make the scraper rotate outward around the fixed plate and contact the inner wall of the nozzle. At this time, when the slider contacts the second conductive sheet at the raised part of the special-shaped wheel, the current of the controller is transmitted to the electric push rod and the double-headed electric telescopic rod through the second conductive sheet and the slider to control the contraction of the electric push rod and the extension of the double-headed electric telescopic rod. The extension of the electric telescopic rod drives the electric push rod to slide outward along the fixed frame, driving the magnetic blocking pieces to move away from each other but not away from the arc-shaped magnet. At this time, the arc-shaped magnet still has a certain clamping force on the magnetic blocking piece, which makes it easy for the electric push rod to contract and drive the arc-shaped magnet to move upward. The center ends of the two arc-shaped magnets are attracted to each other under the action of magnetic force, so that the two arc-shaped magnets are clamped with the telescopic end of the telescopic guide rod. On the one hand, the arc-shaped magnet drives the slide cylinder, the special-shaped wheel and the ring cylinder to rotate as the telescopic guide rod rotates. The electric push rod is pulled upward to contract and the reset spring drives the ring cylinder to rotate. Under the action of the outer ring gear, the outer ring gear is driven to rotate, thereby driving the inner ring gear meshing with it to rotate synchronously. On the other hand, under the upward rotation of the ring cylinder, the moving ring is driven to move upward to the upper end of the nozzle through the transmission of the straight rod. Under the action of the polished rod, the inner ring gear and the outer ring gear are driven to move upward synchronously, so that the scraper rotates upward and scrapes off the impurities attached to the inner wall of the nozzle. When the slider rotates to contact the concave part of the special-shaped wheel, the scraper is reset under the action of the restoring force of the torsion spring itself, thereby throwing off the impurities on the inner wall of the nozzle scraped by the scraper, and the impurities are blown out under the action of the high-speed airflow. Nozzle, thereby achieving cleaning inside the nozzle and ensuring the same cooling flow, so that the workpiece is cooled evenly. On the other hand, when the slider contacts the first conductive sheet at the recessed part of the special-shaped wheel, the current of the controller is transmitted to the electric push rod and the double-headed electric telescopic rod through the first conductive sheet and the slider, controlling the extension of the electric push rod and the contraction of the double-headed electric telescopic rod. The contraction of the double-headed electric telescopic rod causes the two arc-shaped magnets to contact and clamp the telescopic ends of the telescopic guide rod. The electric push rod pushes the arc-shaped magnet ring cylinder special-shaped wheel and the slide cylinder to move downward synchronously, causing the scraper to move downward and reset, preparing for the next cleaning.

[0020] Furthermore, the cooling unit also includes a retaining frame, one end of the retaining frame is fixedly connected to the gas tank, and the other end of the retaining frame is placed on a horizontal ground.

[0021] When the workpiece is cooled, the controller controls the refrigeration component inside the gas tank to start, and the high-speed cold air is transported to the nozzle through the gas pipe, and is ejected from the nozzle at high speed to cool the workpiece.

[0022] Furthermore, the thickness of the magnetic blocking sheet at one end close to the telescopic guide rod is smaller than the thickness at one end away from the telescopic guide rod.

[0023] In order to make the magnetic blocking sheet approach the telescopic guide rod, the two arc-shaped magnets spliced ​​together due to the magnetic force are separated, thereby driving the slide cylinder special-shaped wheel and the ring cylinder to separate synchronously with the telescopic guide rod, and not to rotate synchronously with the telescopic guide rod. The electric push rod is used to move the entire cleaning unit downward to the initial position to prepare for the next cleaning. When the magnetic blocking sheets move away from each other, the center ends of the two arc-shaped magnets are first adsorbed together and clamped with the telescopic guide rod, and rotate synchronously with the telescopic guide rod to perform the cleaning action.

[0024] Furthermore, the sliding groove at the recessed portion of the special-shaped wheel is provided with a first conductive sheet, and the sliding groove at the raised portion of the special-shaped wheel is provided with a second conductive sheet.

[0025] In order to make the slider contact with the second conductive sheet at the raised part of the special-shaped wheel, the current of the controller is transmitted to the electric push rod and the double-headed electric telescopic rod through the second conductive sheet and the slider, controlling the electric push rod to contract and the double-headed electric telescopic rod to extend, contact and clamp with the telescopic part of the telescopic guide rod, and make the scraper move upward to perform a cleaning action. In order to make the slider contact with the first conductive sheet at the recessed part of the special-shaped wheel, the current of the controller is transmitted to the electric push rod and the double-headed electric telescopic rod through the first conductive sheet and the slider, controlling the electric push rod to extend and the double-headed electric telescopic rod to contract, and not contact with the telescopic guide rod, and making the scraper move downward to reset in preparation for the next cleaning.

[0026] In order to facilitate the automation of the device and the timeliness of the control device response, manpower can be saved while improving work efficiency.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. When the workpiece needs to be cooled, the controller controls the rotation motor to start, driving the driving gear to rotate, so that the outer gear ring meshing with it rotates synchronously, thereby driving the ring frame on the furnace body to rotate, and the nozzle connected to the ring frame to rotate circumferentially inside the furnace body, so that the nozzle rotates in the process of spraying cold air, thereby evenly cooling the workpiece and eliminating the cooling dead zone, and the gas carrying heat is discharged through the heat dissipation holes.

[0029] 2. The present invention drives the fan blades to rotate around the fixed platform when the high-speed cold air flow enters the nozzle, thereby driving the telescopic guide rod to rotate synchronously. Initially, the scraper of the cleaning unit is located at the bottom. When the slider rotates to contact the raised portion of the special-shaped wheel, the slider pushes the push rod to make the scraper rotate outward around the fixed plate and contact the inner wall of the nozzle. At this time, when the slider contacts the second conductive sheet at the raised portion of the special-shaped wheel, the current of the controller is transmitted to the electric push rod and the double-headed electric telescopic rod through the second conductive sheet and the slider to control the contraction of the electric push rod and the extension of the double-headed electric telescopic rod. Due to the extension of the double-headed electric telescopic rod, the electric push rod is driven to slide outward along the fixed frame, driving the magnetic blocking sheets away from each other but not separated from the arc magnet. At this time, the arc magnet still has a certain clamping force on the magnetic blocking sheet, which is convenient for the electric push rod to contract and drive the arc magnet to move upward, and the center ends of the two arc magnets are attracted to each other under the action of magnetic force, so that the two arc magnets The magnet is clamped with the telescopic end of the telescopic guide rod. On the one hand, the arc magnet drives the slide cylinder, the special-shaped wheel and the ring cylinder to rotate as the telescopic guide rod rotates. The electric push rod pulls upward to retract and the reset spring drives the ring cylinder to rotate. Under the transmission action of the round rod, the outer ring gear is driven to rotate, thereby driving the inner ring gear meshing with it to rotate synchronously. On the other hand, under the upward rotation of the ring cylinder, the moving ring is driven upward to the upper end of the nozzle through the transmission of the straight rod. Under the action of the light rod, the inner ring gear and the outer ring gear are driven upward synchronously, so that the scraper rotates upward and scrapes off impurities attached to the inner wall of the nozzle. When the slider rotates to contact the recessed part of the special-shaped wheel, the scraper is reset under the action of the torsion spring's own restoring force, thereby throwing off the impurities on the inner wall of the nozzle scraped by the scraper. The impurities are blown out of the nozzle under the action of the high-speed airflow, thereby achieving cleaning inside the nozzle and ensuring the same cooling flow, so that the workpiece is cooled evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall appearance structure of a uniformly cooled horizontal vacuum furnace of the present invention;

[0031] Figure 2 A horizontal vacuum furnace with uniform cooling according to the present invention Figure 1 Another perspective structural diagram;

[0032] Figure 3 This is a schematic diagram of the internal structure of a horizontal vacuum furnace with uniform cooling according to the present invention;

[0033] Figure 4 A horizontal vacuum furnace with uniform cooling according to the present invention Figure 3 A schematic diagram of the structure of the partial enlarged view at center A;

[0034] Figure 5 This is a schematic diagram of the appearance structure of a nozzle of a horizontal vacuum furnace with uniform cooling according to the present invention;

[0035] Figure 6 This is a schematic diagram of the internal structure of a nozzle of a horizontal vacuum furnace with uniform cooling according to the present invention;

[0036] Figure 7 A horizontal vacuum furnace with uniform cooling according to the present invention Figure 6 The structural diagram of the partial enlarged view at B in the middle;

[0037] Figure 8 A horizontal vacuum furnace with uniform cooling according to the present invention Figure 6 Another perspective structural diagram;

[0038] Figure 9 A horizontal vacuum furnace with uniform cooling according to the present invention Figure 8 The schematic diagram of the structure of the partial enlarged view at C in the middle;

[0039] Figure 10 The present invention is a schematic diagram of the installation position structure of the arc magnet, electric push rod and double-headed electric telescopic rod of a horizontal vacuum furnace with uniform cooling.

[0040] Figure: 1. Mounting frame; 2. Rotating unit; 21. Mounting base; 22. Rotating motor; 23. Driving gear; 24. Outer gear ring; 25. Long rod; 26. Ring frame; 27. Furnace body; 28. End cover; 29. ​​Heating assembly; 210. Heat dissipation holes; 3. Cleaning unit; 31. Nozzle; 32. Fixing platform; 33. Fan blade; 34. Return spring; 35. Telescopic guide rod; 36. Fixing frame; 37. Slide cylinder; 38. Round rod ;39. Outer ring gear;310. Inner ring gear;311. Polished rod;312. Moving ring;313. Straight rod;314. Special-shaped wheel;315. Slider;316. Push rod;317. Scraper;318. Fixed plate;319. Ring cylinder;320. Arc magnet;321. Magnetic blocking plate;322. Electric push rod;323. Double-headed electric telescopic rod;4. Cooling unit;41. Retaining frame;42. Gas tank;43. Gas pipe. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example: Figures 1-10 As shown, the present invention provides a technical solution:

[0043] like Figure 1 、 Figure 4As shown, a horizontal vacuum furnace with uniform cooling includes a mounting frame 1, a rotating unit 2, a cleaning unit 3 and a cooling unit 4. The mounting frame 1 is placed on a horizontal ground and is fixedly connected to the rotating unit 2. The rotating unit 2 has the function of eliminating cooling dead zones. The cleaning unit 3 is fixedly connected to the rotating unit 2 and has the function of avoiding blockage and ensuring uniform cooling. The cooling unit 4 is fixedly connected to the rotating unit 2.

[0044] The rotating unit 2 includes a driving gear 23, an outer gear ring 24, a long rod 25, a ring frame 26 and a furnace body 27. The driving gear 23 is meshed with the outer gear ring 24, the outer gear ring 24 is fixedly connected to the long rod 25, and the ring frame 26 is rotatably mounted on the furnace body 27. Multiple ring frames 26 are connected by the long rod 25, and the furnace body 27 is rotatably mounted on the mounting frame 1.

[0045] The cleaning unit 3 includes a nozzle 31, a fan blade 33, a return spring 34, a telescopic guide rod 35, an outer ring gear 39, an inner ring gear 310, a polished rod 311, a straight rod 313, a special-shaped wheel 314, a slider 315, a push rod 316, a scraper 317, a fixed plate 318, a ring cylinder 319, an arc magnet 320, a magnetic blocking sheet 321, an electric push rod 322 and a double-headed electric telescopic rod 323. The nozzle 31 is fixedly connected to the ring frame 26 through a connecting rod, and the nozzle 31 is rotatably mounted on the ring frame 26. In the chute provided in the inner tube of the furnace body 27, adjacent nozzles 31 are connected by an elastic membrane, the fixed end of the telescopic guide rod 35 is fixedly connected to the fan blade 33, the outer ring gear 39 is meshed with the inner gear ring 310, the inner gear ring 310 is slidably mounted inside the nozzle 31, one end of the polished rod 311 is fixedly connected to the inner gear ring 310, the slider 315 is slidably mounted in the sliding groove of the special-shaped wheel 314, the slider 315 is electrically connected to the electric push rod 322, and the slider 315 is electrically connected to the double-headed electric telescopic rod 3 23 is electrically connected, one end of the push rod 316 is fixedly connected to the slider 315, the other end of the push rod 316 is in contact with the scraper 317, one end of the fixed plate 318 is connected to the scraper 317 through a torsion spring, the other end of the fixed plate 318 is fixedly connected to the movable ring 312, a sliding groove is provided on the ring cylinder 319, the ring cylinder 319 is composed of two half cylinders spliced ​​together, the two half cylinders are connected by an annular spring, the ring cylinder 319 is slidably connected to the telescopic guide rod 35, and the half cylinders of the ring cylinder 319 are connected to the two arc magnets 3 20 are fixedly connected respectively, the magnetic blocking piece 321 is slidably installed between the two arc-shaped magnets 320, the fixed end of the electric push rod 322 is slidably connected to the fixed frame 36, the telescopic end of the electric push rod 322 is fixedly connected to the magnetic blocking piece 321, the telescopic ends of both ends of the double-headed electric telescopic rod 323 are fixedly connected to the telescopic end of the electric push rod 322, the fixed end of the double-headed electric telescopic rod 323 is slidably installed on the through groove of the telescopic guide rod 35, and the straight rod 313 is slidably connected to the sliding groove of the ring cylinder 319;

[0046] The cooling unit 4 includes a gas tank 42 and a gas pipe 43, the gas tank 42 and the gas pipe 43 are fixedly connected, the gas pipe 43 extends between the outer tube and the inner tube of the furnace body 27, and a refrigeration component is provided inside the gas tank 42;

[0047] A controller is provided on the mounting frame 1 .

[0048] The mounting frame 1 is used to install and fix the rotating unit 2, the cleaning unit 3 and the cooling unit 4. The rotating unit 2 is used to ensure uniform cooling. The cleaning unit 3 is used to prevent clogging inside the nozzle and ensure uniform cooling of the workpiece. The cooling unit 4 is used to cool the workpiece. When the workpiece needs to be cooled, the workpiece is cooled by the cooling unit 4. The rotating unit 2 ensures that there is a cooling dead zone in the workpiece. The cleaning unit 3 cleans the inside of the nozzle at all times to avoid clogging of the nozzle, affecting the uneven gas flow rate ejected from the nozzle, resulting in insufficient local cooling of the workpiece, excessive temperature, and causing thermal deformation and performance degradation of the workpiece.

[0049] like Figure 2 As shown, the rotating unit 2 also includes a mounting seat 21 and a rotating motor 22 . The mounting seat 21 is fixedly connected to the mounting frame 1 . The fixed end of the rotating motor 22 is fixedly mounted on the mounting seat 21 . The output end of the rotating motor 22 is fixedly connected to the driving gear 23 .

[0050] like Figure 2-Figure 4 As shown, the rotating unit 2 also includes an end cover 28, a heating component 29, and a heat dissipation hole 210. The furnace body 27 is rotatably mounted on the mounting frame 1. The end cover 28 is rotatably connected to the furnace body 27. The heating component 29 is fixedly mounted inside the furnace body 27. The furnace body 27 is provided with a heat dissipation hole 210. The furnace body 27 consists of an inner and outer tube, and the inner tube of the furnace body 27 is provided with a slide groove.

[0051] When the workpiece needs to be cooled, the controller controls the rotating motor 22 to start, driving the driving gear 23 to rotate, so that the outer gear ring 24 meshing with it rotates synchronously, thereby driving the ring frame 26 on the furnace body 27 to rotate, and causing the nozzle 31 connected to the ring frame 26 to rotate circumferentially inside the furnace body 27, so that the nozzle 31 rotates in the process of spraying cold air, thereby evenly cooling the workpiece and eliminating the cooling dead zone, and the gas carrying heat is discharged through the heat dissipation holes 210.

[0052] like Figure 5 、 Figure 6 、 Figure 8 、 Figure 9As shown, the cleaning unit 3 also includes a fixed platform 32, a fixed frame 36 and a slide 37. The fixed platform 32 is fixedly installed on the nozzle 31, the fan blade 33 is rotatably installed on the fixed platform 32, one end of the return spring 34 is rotatably connected to the fixed platform 32, and the other end of the return spring 34 is fixedly connected to the slide 37. The telescopic end of the telescopic guide rod 35 is slidably connected to the fixed frame 36, and the slide 37 is slidably installed on the telescopic guide rod 35. A through groove is provided in the telescopic guide rod 35. The slide 37 consists of two semi-arc cylinders, which are connected by an annular spring. The fixed frame 36 is fixedly connected to the nozzle 31.

[0053] like Figure 6-Figure 9 As shown, the cleaning unit 3 also includes a round rod 38 and a movable ring 312. One end of the round rod 38 is fixedly connected to the slide cylinder 37, and the other end of the round rod 38 is fixedly connected to the outer ring gear 39. The other end of the light rod 311 is fixedly connected to the movable ring 312. The movable ring 312 is slidably installed inside the nozzle 31. The straight rod 313 is fixedly connected to the movable ring 312. The special-shaped wheel 314 is slidably installed on the telescopic guide rod 35. The special-shaped wheel 314 is provided with a sliding groove. The special-shaped wheel 314 consists of a recessed portion and a raised portion. The raised portion and the recessed portion of the special-shaped wheel 314 are connected by an annular spring.

[0054] When the high-speed cold air flow enters the inside of the nozzle 31, the air flow pushes the fan blades 33 to rotate around the fixed platform 32, thereby driving the telescopic guide rod 35 to rotate synchronously. Initially, the scraper 317 of the cleaning unit 3 is located at the bottom. When the slider 315 rotates to contact the raised portion of the special-shaped wheel 314, the slider 315 pushes the push rod 316 to make the scraper 317 rotate outward around the fixed plate 318 and contact the inner wall of the nozzle 31. At this time, when the slider 315 contacts the second conductive sheet at the raised portion of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the second conductive sheet and the slider 315, controlling the contraction of the electric push rod 322 and the extension of the double-headed electric telescopic rod 323. The double-headed electric telescopic rod 323 extends and drives the electric push rod 322 to slide outward along the fixed frame 36, driving the magnetic blocking pieces 321 to move away from each other but not away from the arc-shaped magnet 320. At this time, the arc-shaped magnet 320 still has a certain clamping force on the magnetic blocking piece 321, which is convenient for the electric push rod 322 to contract and drive the arc-shaped magnet 320 to move upward, and the center ends of the two arc-shaped magnets 320 are attracted to each other under the action of magnetic force, so that the two arc-shaped magnets 320 are clamped with the telescopic end of the telescopic guide rod 35. On the one hand, the arc-shaped magnet 320 drives the slide 37, the special-shaped wheel 314 and the ring cylinder 319 to rotate as the telescopic guide rod 35 rotates, and the electric push rod 322 pulls upward and contracts to cooperate with the reset spring 34 to drive the ring cylinder 319 to rotate. The outer ring gear 39 is driven to rotate by the transmission action of the round rod 38, thereby driving the inner ring gear 310 meshing with it to rotate synchronously. On the other hand, the upward rotation of the ring cylinder 319 drives the movable ring 312 to move upward to the upper end of the nozzle 31 through the transmission of the straight rod 313. Under the action of the polished rod 311, the inner ring gear 310 and the outer ring gear 39 are driven upward synchronously, so that the scraper 317 rotates upward and scrapes off the impurities attached to the inner wall of the nozzle 31. When the slider 315 rotates to contact the concave part of the special-shaped wheel 314, the scraper 317 is reset under the action of the restoring force of the torsion spring itself, thereby scraping off the impurities on the inner wall of the nozzle 31 scraped by the scraper 317, and the impurities are blown down under the action of the high-speed airflow. The nozzle 31 is discharged, thereby cleaning the inside of the nozzle 31 and ensuring the same cooling flow, so that the workpiece is cooled evenly. On the other hand, when the slider 315 contacts the first conductive sheet at the recessed part of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the first conductive sheet and the slider 315, controlling the extension of the electric push rod 322 and the contraction of the double-headed electric telescopic rod 323. The contraction of the double-headed electric telescopic rod 323 causes the two arc-shaped magnets 320 to contact and clamp the telescopic ends of the telescopic guide rod 35. The electric push rod 322 pushes the arc-shaped magnet 320, the ring cylinder 319, the special-shaped wheel 314 and the slide cylinder 37 to move downward synchronously, causing the scraper 317 to move downward and reset, preparing for the next cleaning.

[0055] like Figure 2As shown, the cooling unit 4 further includes a retaining frame 41 , one end of the retaining frame 41 is fixedly connected to the gas tank 42 , and the other end of the retaining frame 41 is placed on the horizontal ground.

[0056] When the workpiece is cooled, the controller controls the refrigeration component inside the gas tank 42 to start, and the high-speed cold air is delivered to the nozzle through the gas pipe 43, and is ejected from the nozzle at high speed to cool the workpiece.

[0057] like Figure 9 As shown, the thickness of the magnetic blocking sheet 321 at the end close to the telescopic guide rod 35 is smaller than the thickness at the end away from the telescopic guide rod 35 .

[0058] In order to make the magnetic blocking piece 321 approach the telescopic guide rod 35, the two arc magnets 320 spliced ​​together due to the magnetic force are separated, thereby driving the slide 37 special-shaped wheel 314 and the ring cylinder 319 to separate synchronously with the telescopic guide rod 35, and not to rotate synchronously with the telescopic guide rod 35 to cooperate with the electric push rod 322 to move the entire cleaning unit 3 downward to the initial position, preparing for the next cleaning. When the magnetic blocking pieces 321 move away from each other, the center ends of the two arc magnets 320 are first adsorbed together and clamped with the telescopic guide rod 35, and rotate synchronously with the telescopic guide rod 35, thereby performing the cleaning action.

[0059] like Figure 9 As shown, the sliding groove at the concave portion of the special-shaped wheel 314 is provided with a first conductive sheet, and the sliding groove at the convex portion of the special-shaped wheel 314 is provided with a second conductive sheet.

[0060] In order to make the slider 315 contact the second conductive sheet at the raised part of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the second conductive sheet and the slider 315, controlling the electric push rod 322 to contract and the double-headed electric telescopic rod 323 to extend, contact and clamp the telescopic part of the telescopic guide rod 35, and move the scraper 317 upward to perform a cleaning action. In order to make the slider 315 contact the first conductive sheet at the recessed part of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the first conductive sheet and the slider 315, controlling the electric push rod 322 to extend and the double-headed electric telescopic rod 323 to contract, and not contact the telescopic guide rod 35, so that the scraper 317 moves downward to reset and prepare for the next cleaning.

[0061] In order to facilitate the automation of the device and the timeliness of the control device response, manpower can be saved while improving work efficiency.

[0062] Working principle of the present invention:

[0063] When the workpiece needs to be cooled, the controller controls the refrigeration component inside the gas tank 42 to start, and the high-speed cold air is delivered to the nozzle through the gas pipe 43, and is sprayed out from the nozzle at high speed to cool the workpiece. The controller controls the rotating motor 22 to start, driving the driving gear 23 to rotate, so that the outer gear ring 24 engaged with it rotates synchronously, thereby driving the ring frame 26 on the furnace body 27 to rotate, and causing the nozzle 31 connected to the ring frame 26 to rotate circumferentially inside the furnace body 27, so that the nozzle 31 rotates during the process of spraying cold air, thereby evenly cooling the workpiece and eliminating the cooling dead zone, and the gas carrying heat is discharged through the heat dissipation hole 210.

[0064] When the high-speed cold air flow enters the inside of the nozzle 31, the air flow pushes the fan blades 33 to rotate around the fixed platform 32, thereby driving the telescopic guide rod 35 to rotate synchronously. Initially, the scraper 317 of the cleaning unit 3 is located at the bottom. When the slider 315 rotates to contact the raised portion of the special-shaped wheel 314, the slider 315 pushes the push rod 316 to make the scraper 317 rotate outward around the fixed plate 318 and contact the inner wall of the nozzle 31. At this time, when the slider 315 contacts the second conductive sheet at the raised portion of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the second conductive sheet and the slider 315, controlling the contraction of the electric push rod 322 and the extension of the double-headed electric telescopic rod 323. The double-headed electric telescopic rod 323 extends and drives the electric push rod 322 to slide outward along the fixed frame 36, driving the magnetic blocking pieces 321 to move away from each other but not away from the arc-shaped magnet 320. At this time, the arc-shaped magnet 320 still has a certain clamping force on the magnetic blocking piece 321, which is convenient for the electric push rod 322 to contract and drive the arc-shaped magnet 320 to move upward, and the center ends of the two arc-shaped magnets 320 are attracted to each other under the action of magnetic force, so that the two arc-shaped magnets 320 are clamped with the telescopic end of the telescopic guide rod 35. On the one hand, the arc-shaped magnet 320 drives the slide 37, the special-shaped wheel 314 and the ring cylinder 319 to rotate as the telescopic guide rod 35 rotates, and the electric push rod 322 pulls upward and contracts to cooperate with the reset spring 34 to drive the ring cylinder 319 to rotate. The outer ring gear 39 is driven to rotate by the transmission action of the round rod 38, thereby driving the inner ring gear 310 meshing with it to rotate synchronously. On the other hand, the upward rotation of the ring cylinder 319 drives the movable ring 312 to move upward to the upper end of the nozzle 31 through the transmission of the straight rod 313. Under the action of the polished rod 311, the inner ring gear 310 and the outer ring gear 39 are driven upward synchronously, so that the scraper 317 rotates upward and scrapes off the impurities attached to the inner wall of the nozzle 31. When the slider 315 rotates to contact the concave part of the special-shaped wheel 314, the scraper 317 is reset under the action of the restoring force of the torsion spring itself, thereby scraping off the impurities on the inner wall of the nozzle 31 scraped by the scraper 317, and the impurities are blown down under the action of the high-speed airflow. The nozzle 31 is discharged, thereby cleaning the inside of the nozzle 31 and ensuring the same cooling flow, so that the workpiece is cooled evenly. On the other hand, when the slider 315 contacts the first conductive sheet at the recessed part of the special-shaped wheel 314, the current of the controller is transmitted to the electric push rod 322 and the double-headed electric telescopic rod 323 through the first conductive sheet and the slider 315, controlling the extension of the electric push rod 322 and the contraction of the double-headed electric telescopic rod 323. The contraction of the double-headed electric telescopic rod 323 causes the two arc-shaped magnets 320 to contact and clamp the telescopic ends of the telescopic guide rod 35. The electric push rod 322 pushes the arc-shaped magnet 320, the ring cylinder 319, the special-shaped wheel 314 and the slide cylinder 37 to move downward synchronously, causing the scraper 317 to move downward and reset, preparing for the next cleaning.

[0065] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A horizontal vacuum furnace with uniform cooling, characterized in that: A horizontal vacuum furnace with uniform cooling comprises a mounting frame (1), a rotating unit (2), a cleaning unit (3) and a cooling unit (4); the mounting frame (1) is placed on a horizontal ground; the mounting frame (1) is fixedly connected to the rotating unit (2); the rotating unit (2) has a function of eliminating a cooling dead zone; the cleaning unit (3) is fixedly connected to the rotating unit (2); the cleaning unit (3) has a function of avoiding blockage and ensuring uniform cooling; and the cooling unit (4) is fixedly connected to the rotating unit (2); The rotating unit (2) comprises a driving gear (23), an outer gear ring (24), a long rod (25), a ring frame (26) and a furnace body (27); the driving gear (23) is meshedly connected to the outer gear ring (24); the outer gear ring (24) is fixedly connected to the long rod (25); the ring frame (26) is rotatably mounted on the furnace body (27); a plurality of the ring frames (26) are connected via the long rod (25); and the furnace body (27) is rotatably mounted on the mounting frame (1); The cleaning unit (3) comprises a nozzle (31), a fan blade (33), a return spring (34), a telescopic guide rod (35), an outer ring gear (39), an inner ring gear (310), a polished rod (311), a straight rod (313), a special-shaped wheel (314), a slider (315), a push rod (316), a scraper (317), a fixed plate (318), a ring cylinder (319), an arc magnet (320), a magnetic blocking plate (321), an electric push rod (322) and a double-headed electric telescopic rod (323), the nozzle (31) is fixedly connected to the ring frame (26) via a connecting rod, and the nozzle (31) The nozzles (31) are connected by elastic membranes, the fixed ends of the telescopic guide rods (35) are fixedly connected to the fan blades (33), the outer ring gear (39) is meshed with the inner gear ring (310), the inner gear ring (310) is slidably mounted inside the nozzles (31), one end of the light rod (311) is fixedly connected to the inner gear ring (310), the slider (315) is slidably mounted in the sliding groove of the special-shaped wheel (314), the slider (315) is electrically connected to the electric push rod (322), and the slider (315) is connected to the double-headed The electric telescopic rod (323) is electrically connected, one end of the push rod (316) is fixedly connected to the slider (315), the other end of the push rod (316) is in contact with the scraper (317), one end of the fixed plate (318) is connected to the scraper (317) through a torsion spring, the other end of the fixed plate (318) is fixedly connected to the movable ring (312), the ring tube (319) is provided with a sliding groove, the ring tube (319) is composed of two half-tubes, the two half-tubes are connected by an annular spring, the ring tube (319) is slidably connected to the telescopic guide rod (35), and the half-tubes of the ring tube (319) are connected to the Two arc-shaped magnets (320) are fixedly connected respectively, the magnetic blocking plate (321) is slidably mounted between the two arc-shaped magnets (320), the fixed end of the electric push rod (322) is slidably connected to the fixed frame (36), the telescopic end of the electric push rod (322) is fixedly connected to the magnetic blocking plate (321), the telescopic ends of both ends of the double-headed electric telescopic rod (323) are fixedly connected to the telescopic end of the electric push rod (322), the fixed end of the double-headed electric telescopic rod (323) is slidably mounted on the through slot of the telescopic guide rod (35), and the straight rod (313) is slidably connected to the slide slot of the ring cylinder (319); The cooling unit (4) includes a gas tank (42) and a gas pipe (43), wherein the gas tank (42) and the gas pipe (43) are fixedly connected, and the gas pipe (43) extends between the outer cylinder and the inner cylinder of the furnace body (27), and a refrigeration component is provided inside the gas tank (42); A controller is provided on the mounting frame (1).

2. A horizontal vacuum furnace with uniform cooling according to claim 1, characterized in that: The rotating unit (2) further comprises a mounting seat (21) and a rotating motor (22); the mounting seat (21) is fixedly connected to the mounting frame (1); a fixed end of the rotating motor (22) is fixedly mounted on the mounting seat (21); and an output end of the rotating motor (22) is fixedly connected to a driving gear (23).

3. A horizontal vacuum furnace with uniform cooling according to claim 2, characterized in that: The rotating unit (2) further comprises an end cover (28), a heating component (29), and a heat dissipation hole (210); the end cover (28) is rotatably connected to the furnace body (27); the heating component (29) is fixedly mounted inside the furnace body (27); the heat dissipation hole (210) is provided inside the furnace body (27); the furnace body (27) is composed of an inner and outer cylinder; the inner cylinder of the furnace body (27) is provided with a slide groove.

4. A horizontal vacuum furnace with uniform cooling according to claim 3, characterized in that: The cleaning unit (3) further comprises a fixed platform (32), a fixed frame (36) and a slide (37), wherein the fixed platform (32) is fixedly mounted on the nozzle (31), the telescopic end of the telescopic guide rod (35) is slidably connected to the fixed frame (36), the slide (37) is slidably mounted on the telescopic guide rod (35), a through groove is provided in the telescopic guide rod (35), the slide (37) is composed of two semi-arc cylinders, the two semi-arc cylinders are connected by an annular spring, and the fixed frame (36) is fixedly connected to the nozzle (31).

5. A horizontal vacuum furnace with uniform cooling according to claim 4, characterized in that: The cleaning unit (3) further comprises a round rod (38) and a movable ring (312), wherein one end of the round rod (38) is fixedly connected to the slide cylinder (37), and the other end of the round rod (38) is fixedly connected to the outer ring gear (39), and the other end of the light rod (311) is fixedly connected to the movable ring (312), and the movable ring (312) is slidably mounted inside the nozzle (31), and the straight rod (313) is fixedly connected to the movable ring (312), and the shaped wheel (314) is slidably mounted on the telescopic guide rod (35), and the shaped wheel (314) is provided with a sliding groove, and the shaped wheel (314) consists of a recessed portion and a raised portion, and the raised portion and the recessed portion of the shaped wheel (314) are connected via an annular spring.

6. The uniformly cooled horizontal vacuum furnace according to claim 3, characterized in that: The cooling unit (4) further comprises a retaining frame (41), one end of the retaining frame (41) is fixedly connected to the gas tank (42), and the other end of the retaining frame (41) is placed on a horizontal ground.

7. The uniformly cooled horizontal vacuum furnace according to claim 1, characterized in that: The thickness of the magnetic blocking sheet (321) at one end close to the telescopic guide rod (35) is smaller than the thickness at one end away from the telescopic guide rod (35).

8. The uniformly cooled horizontal vacuum furnace according to claim 5, characterized in that: The sliding groove at the recessed portion of the special-shaped wheel (314) is provided with a first conductive sheet, and the sliding groove at the raised portion of the special-shaped wheel (314) is provided with a second conductive sheet.

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