Uniform heating structure for mesh belt type tempering furnace

Abstract

The utility model discloses a uniform heating structure for a mesh belt type tempering furnace, which belongs to the technical field of heat treatment and comprises a tempering furnace body and a mesh belt, the mesh belt is arranged inside the tempering furnace body, and a heating limiting mechanism for preventing materials from being dispersed everywhere is arranged at the top of the mesh belt. A gas suction assembly for recycling waste gas is arranged at the top of the tempering furnace body, a heating limiting mechanism is arranged, the heating limiting mechanism is arranged on a mesh belt in the using process, then a steel ball is arranged in the heating limiting mechanism, meanwhile, the heating limiting mechanism can enable the steel ball to bounce on the mesh belt, and the steel ball can be conveniently heated. And by arranging the air suction assembly, waste gas can be possibly generated when the workpiece is tempered, at the moment, the air suction assembly can guide the waste gas, and the situation that the waste gas is directly exhausted from the interior of the tempering furnace body, and consequently indoor air is polluted is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment, in particular to a uniform heating structure for a mesh belt type tempering furnace. Background Art

[0002] The mesh belt tempering furnace uses a continuously running mesh belt to transport the workpiece through a temperature-controlled heating zone to achieve the purpose of tempering the workpiece. When using a mesh belt tempering furnace to heat treat the workpiece, the workpiece needs to be heated evenly to improve the quality of the workpiece.

[0003] The steel ball tempering furnace in the prior art does not have a mechanism to flip the steel balls, and cannot achieve uniform heating;

[0004] The existing patent (Announcement No.: CN206654943U) is a mesh belt tempering furnace. By setting a tensioning mechanism, the rollers on the tensioning mechanism are eccentrically set to the rotating shaft. In this way, the steel balls move forward in a wave-like manner along the conveying direction during the tempering process, and flip over during the forward process, making the heating more uniform and greatly improving the tempering quality.

[0005] In view of the above problems, the existing patent provides a solution, but it cannot limit the position of the tempered steel balls when in use. Therefore, when the steel balls on the mesh belt bounce up, they will move around, causing collisions between the steel balls and the equipment. Therefore, it needs to be improved.

[0006] Therefore, a uniform heating structure for a mesh belt tempering furnace is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a uniform heating structure for a mesh-belt tempering furnace, which can solve the problem that the existing uniform heating structure for a mesh-belt tempering furnace cannot limit the position of the tempering steel balls when in use, so that when the steel balls on the mesh belt bounce up, they will move around, thereby causing collisions between the steel balls and the equipment.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniform heating structure for a mesh belt type tempering furnace, comprising a tempering furnace body and a mesh belt, wherein the mesh belt is arranged inside the tempering furnace body, a heating limit mechanism for preventing materials from being scattered is arranged on the top of the mesh belt, and an air intake component for recovering waste gas is arranged on the top of the tempering furnace body;

[0009] The heating limiting mechanism includes a vertical rod, a horizontal rod, a slide groove, a sliding rod, a lifting plate, and a rotating rod protrusion. The vertical rod is arranged at the top of the mesh belt, the horizontal rod is arranged at one side of the vertical rod, the slide groove is opened at both ends of the vertical rod, the sliding rod is arranged inside the slide groove, the lifting plate is welded to both ends of the horizontal rod, the rotating rod is rotatably connected to the inside of the tempering furnace body, the protrusion is welded to the outer wall of the rotating rod, the lifting plate is located inside the slide groove, one end of the sliding rod passes through the lifting plate and is slidably connected to the lifting plate, and the number of the vertical rod and the horizontal rod is two.

[0010] Preferably, the air intake assembly includes a centrifugal fan, a frame and a connecting pipe, the centrifugal fan is arranged above the tempering furnace body, the frame is bolted to both ends of the tempering furnace body, the connecting pipe is connected to the top of the frame, and one end of the connecting pipe is fixedly connected to the input end of the centrifugal fan.

[0011] Preferably, a mounting plate is welded on the outer wall of the tempering furnace body, a screw groove is provided on the top of the mounting plate, and the number of the mounting plates is four and they are evenly distributed.

[0012] Preferably, two groups of connecting pipes are connectedly arranged on the outer wall of the connecting pipe, a valve is arranged outside the connecting pipe, and one end of the connecting pipe passes through the tempering furnace body and is connected with the interior of the tempering furnace body.

[0013] Preferably, a filter screen is provided inside the frame to prevent dust from contacting the centrifugal fan, and the filter screen is made of stainless steel.

[0014] Preferably, a reinforcing rib is bolted to the outer wall of the tempering furnace body, and the top of the reinforcing rib is bolted to the bottom of the frame.

[0015] Preferably, a limiting plate is bolted inside the tempering furnace body, and the top of the limiting plate is tightly fitted with the bottom wall of the mesh belt.

[0016] Preferably, the top and bottom of the crossbar are respectively provided with a first inclined surface and a second inclined surface.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The present application is provided with a heating limit mechanism. When in use, the heating limit mechanism is placed on the mesh belt, and then the steel ball is placed inside the heating limit mechanism. At the same time, the heating limit mechanism can also make the steel ball bounce on the mesh belt, and it will be limited by the heating limit mechanism when bouncing, so as to prevent the steel ball from moving around and colliding with the inside of the equipment.

[0019] 2. The present application is provided with an air suction component. When the workpiece is tempered, waste gas may be generated. At this time, the air suction component can guide the waste gas to prevent the waste gas from being directly discharged from the inside of the tempering furnace body and causing indoor air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the overall structural view of the utility model;

[0022] Figure 2 It is a left view of the utility model;

[0023] Figure 3 For this utility model Figure 2 The three-dimensional cross-section view at AA in the middle;

[0024] Figure 4 This is a structural view of the heating limit mechanism, the first inclined surface and the second inclined surface of the utility model;

[0025] Figure 5 For this utility model Figure 3 Enlarged view of point A in the middle.

[0026] Description of reference numerals:

[0027] 1. Tempering furnace body; 2. Mesh belt; 3. Heating limit mechanism; 4. Air suction assembly; 5. Mounting plate; 6. Screw groove; 7. Connecting pipe; 8. Valve; 9. Filter; 10. Reinforcement rib; 11. Limit plate; 12. First inclined plane; 13. Second inclined plane; 301. Vertical rod; 302. Horizontal rod; 303. Slide groove; 304. Slide rod; 305. Lifting plate; 306. Rotating rod; 307. Raised part; 401. Centrifugal fan; 402. Frame; 403. Connecting pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 5 , the utility model provides a technical solution:

[0030] A uniform heating structure for a mesh belt tempering furnace, comprising a tempering furnace body 1 and a mesh belt 2, wherein the mesh belt 2 is arranged inside the tempering furnace body 1, a heating limit mechanism 3 is arranged on the top of the mesh belt 2 to prevent materials from being scattered around, and an air intake component 4 for recovering waste gas is arranged on the top of the tempering furnace body 1;

[0031] The heating limit mechanism 3 includes a vertical rod 301, a horizontal rod 302, a slide groove 303, a sliding rod 304, a lifting plate 305, and a protrusion 307 of a rotating rod 306. The vertical rod 301 is arranged at the top of the mesh belt 2, the horizontal rod 302 is arranged on one side of the vertical rod 301, the slide groove 303 is opened at both ends of the vertical rod 301, the sliding rod 304 is arranged inside the slide groove 303, the lifting plate 305 is welded to both ends of the horizontal rod 302, the rotating rod 306 is rotatably connected to the inside of the tempering furnace body 1, the protrusion 307 is welded to the outer wall of the rotating rod 306, the lifting plate 305 is located inside the slide groove 303, one end of the sliding rod 304 passes through the lifting plate 305 and is slidably connected to the lifting plate 305, and the number of the vertical rod 301 and the horizontal rod 302 are both two.

[0032] Specifically, Figure 1 As shown, a mounting plate 5 is welded on the outer wall of the tempering furnace body 1, a screw groove 6 is provided on the top of the mounting plate 5, and the number of the mounting plates 5 is four and they are evenly distributed.

[0033] Specifically, Figure 1 As shown, a limiting plate 11 is bolted inside the tempering furnace body 1 , and the top of the limiting plate 11 is tightly fitted with the bottom wall of the mesh belt 2 .

[0034] Specifically, Figure 4 As shown, the top and bottom of the crossbar 302 are respectively provided with a first inclined surface 12 and a second inclined surface 13 .

[0035] When in use, the structure formed by the horizontal bar 302 and the vertical bar 301 is placed on the top of the mesh belt 2, and then the steel ball is placed in the structure formed by the horizontal bar 302 and the vertical bar 301. When the tempering furnace body 1 and the mesh belt 2 are in operation, the steel ball will be driven to move, and then the rotating rod 306 will be rotated. The rotation of the rotating rod 306 drives the protrusion 307 to rotate, thereby intermittently deforming the mesh belt 2, and then the steel ball is bounced up so that the steel ball can be fully heated. When the mesh belt 2 is deformed, the horizontal bar 302 will be driven to move upward along the sliding bar 304. When the horizontal bar 302 moves upward, because the top and bottom of the horizontal bar 302 are respectively provided with a first inclined surface 12 and a second inclined surface 13, the steel ball will not be stuck between the horizontal bar 302 and the mesh belt 2.

[0036] Specifically, Figure 3As shown, the air intake assembly 4 includes a centrifugal fan 401, a frame 402 and a connecting pipe 403. The centrifugal fan 401 is arranged above the tempering furnace body 1, the frame 402 is bolted to both ends of the tempering furnace body 1, and the connecting pipe 403 is connected to the top of the frame 402, and one end of the connecting pipe 403 is fixedly connected to the input end of the centrifugal fan 401.

[0037] Specifically, Figure 3 As shown, two groups of connecting pipes 7 are connected on the outer wall of the connecting pipe 403 , a valve 8 is arranged outside the connecting pipe 7 , and one end of the connecting pipe 7 passes through the tempering furnace body 1 and is connected with the interior of the tempering furnace body 1 .

[0038] Specifically, Figure 3 As shown, a filter screen 9 is arranged inside the frame 402 to prevent dust from contacting the centrifugal fan 401, and the filter screen 9 is made of stainless steel.

[0039] Specifically, Figure 1 As shown, a reinforcing rib 10 is bolted to the outer wall of the tempering furnace body 1 , and the top of the reinforcing rib 10 is bolted to the bottom of the frame 402 .

[0040] When the steel ball is heat treated, waste gas may be generated. At this time, the centrifugal fan 401 is started. The operation of the centrifugal fan 401 will guide the waste gas discharged from the outside of the tempering furnace body 1 to prevent the waste gas from being directly discharged. At the same time, the valve 8 can be opened to make the centrifugal fan 401 operate in the reverse direction, and then the gas is blown into the interior of the tempering furnace body 1. Increasing the gas flow rate can reduce the thickness of the hot edge layer. The hot edge layer refers to the gas layer close to the solid surface, and its temperature is close to the temperature of the solid surface. Increasing the gas flow rate will reduce the thickness of the hot edge layer, so that more gas contacts the solid surface, thereby accelerating the heat transfer speed and improving the heating efficiency.

[0041] By adopting the above technical solution, the problem that the existing uniform heating structure of the mesh belt 2 type tempering furnace cannot limit the position of the tempering steel balls when in use, so that when the steel balls on the mesh belt 2 bounce up, the steel balls will move around, causing collisions between the steel balls and the equipment is solved.

[0042] Working principle: When in use, the structure formed by the horizontal rod 302 and the vertical rod 301 is placed on the top of the mesh belt 2, and then the steel ball is placed in the structure formed by the horizontal rod 302 and the vertical rod 301. When the tempering furnace body 1 and the mesh belt 2 are in operation, the steel ball will be driven to move, and then the rotating rod 306 will be rotated. The rotation of the rotating rod 306 drives the protrusion 307 to rotate, so that the mesh belt 2 is intermittently deformed, and then the steel ball is bounced up, so that the steel ball can be fully heated. When the mesh belt 2 is deformed, it will drive the horizontal rod 302 to move upward along the sliding rod 304. When the horizontal rod 302 moves upward, because the top and bottom of the horizontal rod 302 are respectively provided with a first inclined surface 12 and a second inclined surface 13, The steel ball will not be stuck between the cross bar 302 and the mesh belt 2. When the steel ball is heat treated, waste gas may be generated. At this time, the centrifugal fan 401 is started. The operation of the centrifugal fan 401 will guide the waste gas discharged from the outside of the tempering furnace body 1 to prevent the waste gas from being directly discharged. At the same time, the valve 8 can be opened to make the centrifugal fan 401 operate in the reverse direction, and then the gas is blown into the interior of the tempering furnace body 1. Increasing the gas flow rate can reduce the thickness of the hot edge layer. The hot edge layer refers to the gas layer close to the solid surface, and its temperature is close to the temperature of the solid surface. Increasing the gas flow rate will reduce the thickness of the hot edge layer, so that more gas contacts the solid surface, thereby accelerating the heat transfer speed and improving the heating efficiency.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A uniform heating structure for a mesh belt tempering furnace, comprising a tempering furnace body (1) and a mesh belt (2), characterized in that: The mesh belt (2) is arranged inside the tempering furnace body (1), a heating limit mechanism (3) is arranged on the top of the mesh belt (2) to prevent materials from being scattered, and an air intake component (4) is arranged on the top of the tempering furnace body (1) to recover waste gas; The heating limit mechanism (3) comprises a vertical rod (301), a horizontal rod (302), a slide groove (303), a slide rod (304), a lifting plate (305), a rotating rod (306) and a protruding portion (307); the vertical rod (301) is arranged on the top of the mesh belt (2); the horizontal rod (302) is arranged on one side of the vertical rod (301); the slide groove (303) is opened at both ends of the vertical rod (301); and the slide rod (304) is arranged inside the slide groove (303). The lifting plate (305) is welded to both ends of the cross bar (302), the rotating rod (306) is rotatably connected to the inside of the tempering furnace body (1), the protrusion (307) is welded to the outer wall of the rotating rod (306), the lifting plate (305) is located inside the slide groove (303), one end of the sliding rod (304) passes through the lifting plate (305) and is slidably connected to the lifting plate (305), and the number of the vertical rod (301) and the cross bar (302) are both two.

2. The uniform heating structure for a mesh belt tempering furnace according to claim 1, characterized in that: The air intake assembly (4) comprises a centrifugal fan (401), a frame (402) and a connecting pipe (403); the centrifugal fan (401) is arranged above the tempering furnace body (1); the frame (402) is bolted to both ends of the tempering furnace body (1); the connecting pipe (403) is arranged in communication with the top of the frame (402); one end of the connecting pipe (403) is fixedly connected to the input end of the centrifugal fan (401).

3. The uniform heating structure for a mesh belt tempering furnace according to claim 1, characterized in that: A mounting plate (5) is welded on the outer wall of the tempering furnace body (1), a screw groove (6) is provided on the top of the mounting plate (5), and the number of the mounting plates (5) is four and they are evenly distributed.

4. The uniform heating structure for a mesh belt tempering furnace according to claim 2, characterized in that: Two groups of connecting pipes (7) are arranged on the outer wall of the connecting pipe (403), a valve (8) is arranged outside the connecting pipe (7), and one end of the connecting pipe (7) passes through the tempering furnace body (1) and is connected to the interior of the tempering furnace body (1).

5. The uniform heating structure for a mesh belt tempering furnace according to claim 2, characterized in that: A filter screen (9) is arranged inside the frame (402) to prevent dust from contacting the centrifugal fan (401), and the filter screen (9) is made of stainless steel.

6. The uniform heating structure for a mesh belt tempering furnace according to claim 2, characterized in that: A reinforcing rib (10) is bolted to the outer wall of the tempering furnace body (1), and the top of the reinforcing rib (10) is bolted to the bottom of the frame (402).

7. The uniform heating structure for a mesh belt tempering furnace according to claim 1, characterized in that: A limiting plate (11) is bolted to the interior of the tempering furnace body (1), and the top of the limiting plate (11) is tightly fitted to the bottom wall of the mesh belt (2).

8. The uniform heating structure for a mesh belt tempering furnace according to claim 1, characterized in that: The top and bottom of the crossbar (302) are respectively provided with a first inclined surface (12) and a second inclined surface (13).

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