Novel heating device

Abstract

The utility model discloses a novel heating device which comprises a furnace body, and an input port and an output port at the two ends of the furnace body are respectively communicated with a heating chamber in the furnace body; a conveying component is arranged in the heating chamber, and the conveying component drives a workpiece to horizontally move in a vertical posture through a lifting piece; and a combustor facing a workpiece at the front end of the conveying direction is arranged at the output port. A blocking piece used for blocking a workpiece located at the foremost end in the conveying direction is arranged at the output port. The local heating device is suitable for continuously and quickly heating local parts of workpieces, and is particularly suitable for local heating continuous production of plate-shaped thin workpieces. And by adopting the method that flames directly irradiate the local part of the workpiece, the heating efficiency is greatly improved, the whole workpiece does not need to be heated, and the energy consumption is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat treatment equipment, and particularly relates to a novel heating device. Background Art

[0002] Currently, in the fields of metal heat treatment and forging, the furnace types suitable for continuous heating of small workpieces mainly include roller hearth furnaces, mesh belt furnaces, etc., and most of them use electric heating. This type of furnace is suitable for heating the whole workpiece, but it cannot be used for workpieces that require local heating, and the electric heating has high energy consumption.

[0003] Taking the heat treatment of tools or shovels as an example, the conventional heating method is to heat the whole workpiece to increase its hardness, and then perform local forging or rolling on the edge of the workpiece. Since the whole workpiece is heated during heat treatment, and only the edge part is locally processed later, this will not only waste a lot of fuel and have high energy consumption, but also easily affect the strength, hardness and toughness of the workpiece. For example, when using a knife to pat garlic in daily use, the back of the knife is easily broken. The most ideal heat treatment method is to perform heat treatment on different parts of the workpiece at different temperatures to achieve a good balance of the strength, hardness and toughness of the workpiece.

[0004] Therefore, researching and developing a device that can perform local heat treatment on the edge of the workpiece can not only reduce energy consumption, but also significantly improve the heat treatment effect of the workpiece and improve the quality of the workpiece. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a novel heating device, which can perform heat treatment on a part of the workpiece to reduce energy consumption and achieve a good heat treatment effect.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A novel heating device includes a horizontal furnace body. The input port and the output port at both ends of the furnace body are respectively communicated with the heating chamber inside. A flue gas exhaust pipe is provided on the furnace body close to the input port direction.

[0008] A conveying component penetrating through both ends of the furnace body is arranged in the heating chamber. The conveying component drives a plurality of workpieces in an upright posture to horizontally move from the input port end to the output port end through a lifting component.

[0009] A burner is provided at the output port and faces the workpiece at the front end in the conveying direction.

[0010] As a further technical solution, a blocking component is provided at the output port to block the workpiece at the very front end in the conveying direction.

[0011] As a further technical solution, the blocking member is in mutual contact with the workpiece at the forefront in the conveying direction through a swinging mechanism, and the swinging mechanism includes a swinging arm hinged to the furnace body at one end, and the other end of the swinging arm is connected to the blocking member.

[0012] As a further technical solution, a sensor is also provided within the swinging range of the swinging arm.

[0013] As a further technical solution, it further includes a lifting mechanism for lifting the workpiece at the front end in the conveying direction.

[0014] As a further technical solution, the lifting mechanism includes a support arm hinged to the furnace body, a lifting portion is provided at one end of the support arm facing the workpiece direction, and the other end of the support arm away from the workpiece direction is hinged to the driving end of the first driving component.

[0015] As a further technical solution, it further includes a moving mechanism for adjusting the position of the burner.

[0016] As a further technical solution, the moving mechanism includes a fixing seat for fixing the burner, the fixing seat is movably connected to a rotating arm, a second driving component is provided on the rotating arm and the driving end of the second driving component drives the fixing seat to reciprocate along the axial direction of the rotating arm; both ends of the rotating arm are fixedly connected to the furnace body through fasteners.

[0017] As a further technical solution, the lifting member is a lifting frame or a lifting plate.

[0018] As a further technical solution, a workpiece taking port is provided on one side of the furnace body close to the output port direction.

[0019] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0020] The present utility model is suitable for continuously and rapidly heating a part of a workpiece, and is particularly suitable for the continuous production of local heating of plate-shaped thin workpieces. By adopting the method of directly irradiating the local part of the workpiece with a flame, the heating efficiency is greatly improved, there is no need to heat the whole workpiece, and the energy consumption is greatly reduced. Description of the Drawings

[0021] Figure 1 is the main structural schematic view of the present utility model;

[0022] Figure 2 is the main structural schematic cross-sectional view of the present utility model;

[0023] Figure 3 is Figure 1 the structural schematic view in the A-A direction in

[0024] Figure 4 is a schematic side view of the structure of the moving mechanism in the present utility model;

[0025] Figure 5 is Figure 4 a schematic diagram of the changed state structure;

[0026] Figure 6 is a schematic front view of the structure of the moving mechanism in the present utility model;

[0027] Figure 7 is Figure 6 a schematic diagram of the changed state structure;

[0028] Figure 8 is a schematic structure of the lifting member in the present utility model Figure 1 ;

[0029] Figure 9 is a schematic structure of the lifting member in the present utility model Figure 2 ;

[0030] Figure 10 is a schematic front view of the structure of the swinging mechanism in the present utility model;

[0031] Figure 11 is Figure 10 a schematic diagram of the changed state structure;

[0032] Figure 12 is a schematic front view of the structure of the lifting mechanism in the present utility model;

[0033] Figure 13 is Figure 12 a schematic diagram of the changed state structure;

[0034] Figure 14 is a schematic structure of the lifting member in the present utility model Figure 3 .

[0035] In the figure:

[0036] 100 - furnace body, 101 - flue gas exhaust pipe, 102 - workpiece taking port, 103 - gate, 104 - heating chamber;

[0037] 200 - conveying component, 201 - lifting member, 2011 - connecting part;

[0038] 3 - workpiece;

[0039] 400 - swinging mechanism, 401 - blocking member, 402 - swinging arm, 403 - auxiliary rod 1, 404 - inductor, 405 - hinge point 1;

[0040] 5 - burner

[0041] 600 - Moving mechanism 601 - Fixed seat 602 - Slide seat 603 - Slide rail 604 - Rotating arm 605 - Driving component II 606 - Fastener;

[0042] 700 - Lifting mechanism 701 - Lifting part 702 - Driving component I 703 - Auxiliary rod II 704 - Support arm 705 - Hinge point II. Detailed implementation mode

[0043] To make the purpose, technical solution and advantages of the present utility model clearer, the following will further elaborate on the present utility model through the attached Figures 1 to 14 as well as embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the scope of the present utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present utility model.

[0044] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0046] Embodiment 1

[0047] Referring to the attached Figure 1 to the attached Figure 14 , the embodiment of the present utility model provides a new type of heating device, which can perform heat treatment on a part of the workpiece, especially can perform local heating on the edge of thin workpieces such as knives and shovels, rather than performing heat treatment on the entire workpiece.

[0048] Specifically, it includes a horizontal furnace body 100, whose outer periphery is wrapped with heat insulation cotton and heat insulation bricks to play a role in heat insulation and heat preservation. The input port and the output port at both ends of the furnace body 100 are respectively communicated with the heating chamber 104 inside it. The workpiece moves in the heating chamber 104 from the input port direction (such as Figure 1 the right direction of the furnace body 100 in the figure) to the output port direction (such as Figure 1 the left direction of the furnace body 100 in the figure). A valve 103 can be set at the input port (i.e., the input end) to play a role in sealing, which is opened when the workpiece 3 is put in and closed otherwise. The output port (i.e., the output end) can also be blocked to a certain extent by using materials such as refractory bricks or refractory cotton, and it does not need to be completely sealed.

[0049] A flue gas discharge pipe 101 is provided on the furnace body 100 close to the input port direction, and high-temperature flue gas can be discharged from here. Moreover, the flue gas discharge pipe 101 is arranged here to preheat the just-put-in workpiece 3 by using the remaining heat. Of course, it is advisable to install a draft component on the flue gas discharge pipe 101, and it is best to achieve a certain low-pressure state inside the furnace body 100 to facilitate the convection of air flow from outside to inside and prevent the high-temperature flue gas from spreading out.

[0050] A conveying component 200 running through both ends of the furnace body 100 is provided in the heating chamber 104. In actual use, the conveying component 200 is a conveying chain, whose two ends are respectively driven by sprockets and can play a role in conveying the workpiece 3. The chain is also more heat-resistant and can be stably used for a long time. Its conveying speed is slow. It is preferably in a step-by-step driving state or can also be in a continuous driving state. The conveying component 200 drives a number of workpieces 3 in an upright posture to horizontally move from the input port end to the output port end through a lifting member 201 (refer to Figure 8 , Figure 9 and Figure 14 ). Specifically, the workpiece 3 is preferably in an upright posture with the blade part upward and the sides are mutually close to each other. The adjacent workpieces 3 on the left and right can nestle against each other, and the horizontal moving state can prevent the workpiece 3 from tilting, which is convenient for local heating of the blade part (i.e., the top edge of the workpiece 3). The workpieces 3 with mutually close sides can also be arranged in a staggered manner, which is also convenient for workers to take out the workpieces, but this will cause inconvenience when putting in the workpieces 3. Workers need to stagger the workpieces 3 one by one manually, with both advantages and disadvantages. In addition, the conveying chain can be one or two, and other auxiliary support tracks can also be set to ensure that the lifting member 201 stably conveys the workpiece 3 in a horizontal state.

[0051] Refer to Figure 8 and Figure 9 , the lifting member 201 can be a lifting frame or a lifting plate, and its function is to ensure the horizontal conveyance of the workpiece 3. An engaging part 2011 can also be set at the butt joint of the head and tail of the lifting frame to achieve precise butt joint and prevent the appearance of gaps and the skew of the workpiece 3. Refer toFigure 3 By placing refractory bricks under the lifting member, a better heat insulation effect can be achieved to prevent high temperature from having an adverse effect on the conveying member 200. The lifting member 201 also needs to have a certain high temperature resistance to prevent deformation and damage.

[0052] In this embodiment, the lifting member not only serves to place the workpiece 3, but also serves to separate the workpiece 3 from the conveying member 200. In addition, due to the influence of refractory bricks and other components, the high-temperature gas is difficult to flow downward, and the heat received by the conveying member 200 is very limited, which will not have an adverse effect on the transmission. If the workpiece 3 is placed directly on the conveying member 200, it is easy to cause the conveying member 200 to be deformed and damaged by heat.

[0053] The output port is provided with a burner 5 facing the workpiece 3 at the front end of the conveying direction, that is, the burner 5 can heat several workpieces 3 at the front end, and only heat the blade. The high-temperature gas generated by the burner 5 flows in the heating chamber 104, and the heat is concentrated in the upper part of the chamber. With the continuous flow, the workpiece 3 just put in can also be preheated.

[0054] In this embodiment, workers need to be careful when taking out the workpiece 3 in the direction of the output end, and be careful not to tilt it to prevent the workpiece 3 at the front end from tipping over in a domino effect. In other words, if the workpiece 3 tips over, the blade cannot face upward, and the effect of local heat treatment is lost, so the vertical posture of the workpiece 3 needs to be ensured. Of course, a take-out port 102 close to the output port can also be provided on one side of the furnace body 100, and the workpiece 3 after heat treatment can be taken out from this take-out port 102. That is, workers can take out the workpiece 3 from the side, which is more convenient than taking out the workpiece 3 from the output end.

[0055] Embodiment 2

[0056] The purpose of this embodiment is to further ensure that the workpiece 3 is always in an upright posture, that is, to ensure that the cutting edge faces upward to prevent it from falling over.

[0057] In this embodiment, the output port is provided with a blocking member 401 for blocking the workpiece 3 at the front end of the conveying direction, and the workpiece 3 will not tilt in the conveying direction due to the blocking. At the same time, the workpiece 3 will not fall in the opposite direction, because the workpieces 3 are close to each other in the left and right directions and lean against each other. Even if the workpiece 3 in the input port direction falls, the worker can straighten it in time or add a new workpiece 3 to lean on. In addition, the temperature in the input port direction is also low, and the conveying speed is slow, which is convenient for workers to operate manually.

[0058] The stopper 401 in this structure can be a fixed structure. That is to say, the workpiece 3 is blocked by it and no longer continues to be conveyed forward. At this time, the worker also needs to timely take out one or multiple adjacent workpieces 3 at the front end, so that the workpieces 3 at the rear can continue to be conveyed forward. Moreover, after the workpiece 3 is taken out, the stopper 401 can naturally swing reversely under the action of gravity and re-approach the workpiece 3 at the forefront to prevent the workpiece 3 from skewing.

[0059] In addition, as a further improvement of this embodiment, the stopper 401 is in mutual contact with the workpiece 3 at the forefront in the conveying direction through a swinging mechanism 400 (refer to Figure 1 , Figure 2 , Figure 10 and Figure 11 ). That is to say, the stopper 401 has a structure of movable connection. When the workpiece 3 is blocked, the stopper 401 can displace. Specifically, the swinging mechanism 400 includes a swinging arm 402 hinged to the furnace body 100 at one end, and the other end of the swinging arm 402 is connected to the stopper 401. The stopper 401 can swing around the hinge point 405. As for the size of the swinging amplitude, it is affected by the advancing distance of the workpiece 3. The longer the advancing distance of the workpiece 3, the larger the swinging amplitude. Conversely, the swinging amplitude is smaller.

[0060] The reason for adopting this structure is to facilitate the manual picking operation of the worker. When the worker sees that the stopper 401 is pushed and swings, it means that the workpiece 3 has reached the predetermined station and needs to be taken out in time. If the fixed structure in the first embodiment is also adopted, it is also possible, but the worker needs to take out the workpiece 3 more timely, and the mental state of the worker is relatively tense. The way of movable connection is more conducive to the operation of the worker.

[0061] In this embodiment, a sensor 404 is also provided within the swinging range of the swinging arm 402. Through this structure, the purpose of automatic control can be achieved. The sensor 404 can also be connected to an audible and visual alarm to prompt the worker that it is necessary to pick up the workpiece. When the swinging arm 402 swings and touches the sensor 404, a signal will be fed back to the controller, so as to perform the next step of automatic control.

[0062] Embodiment Three

[0063] The purpose of this embodiment is to facilitate the worker to take out the workpiece and prevent the adjacent workpiece 3 from being skewed when manually taking out the workpiece 3.

[0064] It includes a lifting mechanism 700 for lifting the workpiece 3 at the forefront in the conveying direction, which can lift one or multiple adjacent workpieces 3, so that there is a difference in the height direction from other workpieces 3, facilitating the worker to specifically take out the workpiece 3.

[0065] Refer to Figure 2, Figure 11 , Figure 12 and Figure 13 , specifically, the lifting mechanism 700 includes a support arm 704 hinged to the furnace body 100, and both ends thereof can swing around the second hinge point 705. One end of the support arm 704 facing the workpiece 3 is provided with a lifting portion 701, and the end of the support arm 704 away from the workpiece 3 is hinged to the driving end of the first driving member 702. When the first driving member 702 operates, the driving end extends upward to drive the support arm 704 to swing, and the lifting portion 701 will swing downward in the opposite direction. At this time, the workpiece 3 cannot be lifted. On the contrary, when the driving end contracts downward, the lifting portion 701 will lift upward, thereby lifting one or more adjacent workpieces 3 located at the front end. There is a certain height difference between the lifted end and the other workpieces 3, and the worker can easily clamp here to take out the workpiece 3 quickly. Moreover, it will not touch the adjacent workpieces 3, further ensuring that the workpiece 3 maintains a vertical posture.

[0066] Embodiment 4

[0067] The purpose of this embodiment is to achieve more comprehensive local heating of workpieces with different sizes and specifications, so that the burner 5 only performs comprehensive heating treatment on the local part of the workpiece to prevent uneven heating of the blade part.

[0068] It includes a moving mechanism 600 for adjusting the position of the burner 5, which can drive the burner 5 to change within a certain range and can realize changes in the horizontal direction, height direction and inclination angle.

[0069] Refer to Figures 4 to 7 , specifically, the moving mechanism 600 includes a fixed seat 601 for fixing the burner 5. The fixed seat 601 is movably connected to the rotating arm 604. The rotating arm 604 is provided with a second driving member 605, and the driving end of the second driving member 605 drives the fixed seat 601 to reciprocate along the axial direction of the rotating arm 604. That is, the fixed seat 601 can drive the burner 5 to reciprocate in the horizontal direction, realizing the change of the horizontal combustion direction, which is beneficial to heating the blade part in the horizontal direction. The two ends of the rotating arm 604 are fixedly connected to the furnace body 100 through fasteners 606, and the rotating arm 604 can rotate around its axis, thereby realizing the change of the inclination angle of the burner 5 and facilitating the adjustment of the combustion angle. That is to say, the closer the burner 5 is to the horizontal, the worse the heating effect. On the contrary, the larger the inclination angle, the easier it is to quickly heat the front-end workpiece. In addition, the fasteners 606 are convenient for fastening the rotating arm 604 in different height directions, thereby realizing the adjustment in the height direction.

[0070] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0071] Principle description:

[0072] The workpieces 3 are preferably placed on the lifting members on the conveying member in a vertical posture with the cutting edges facing upward and close to each other. In order to fix the frontmost workpiece 3 to prevent tilting during the initial working stage, multiple workpieces 3 can be fixed to prevent tilting by means of tape winding, or a stop block can be used for fixing to prevent tilting. When starting to heat, the tape will be melted or the stop block can be removed. Once the normal operation starts, the workpieces 3 are in a state of being close to each other, and no side tilt will occur. The worker only needs to supplement and place the workpieces 3 at the input port end on time. The burner 5 can heat the cutting edges of the workpieces 3 at the front end. Affected by the close fit of the workpieces 3, the high-temperature flame can only heat the cutting edges from above, while the bottom of the workpiece 3 is limited in heat absorption, so as to achieve differential local heat treatment.

[0073] When the workpiece 3 at the front end is heated for a certain period of time, with the conveying of the conveying member, the blocking member 401 will be pushed to tilt to the side, and then drive the swing arm 402 to swing. When the sensor 404 captures the signal, the drive member 702 in the lifting member is controlled by the controller to act. One or more workpieces 3 at the front end are lifted by the lifting member after heating, forming a certain height difference from other workpieces 3, and the worker can easily take out the lifted workpiece 3 by clamping. Thus, an automated operation is formed, that is, the automated control of taking out the workpiece after heating and lifting the workpiece. The worker only needs to take out the workpiece 3. Of course, when the workpiece 3 is relatively thin, the swing amplitude of the blocking member 401 is very limited, and an auxiliary rod 403 can also be added to the swing arm 402 to increase the swing amplitude, and then the sensor 404 is used to capture the signal.

[0074] Due to the thin thickness of the workpiece 3, the number of workpieces taken out is also limited, and the blocking of the blocking member 401, even if the adjacent workpiece 3 at the front end tilts, the tilting angle of the workpiece 3 in the limited space is very limited. Moreover, with the continuous conveying of the conveying member, the workpiece 3 will gradually return to the vertical posture under the blocking of the blocking member 401. Of course, the workpiece 3 can also be taken out without the blocking member 401 and the lifting member, but the worker needs to take out the workpiece 3 carefully to prevent accidental collision from causing the workpiece 3 at the rear to tilt, and this operation is more inconvenient. Of course, when processing thicker workpieces 3 (such as metal blocks), their vertical stability is better and it is more difficult to tilt, and it is more convenient for the worker to take out the workpiece.

[0075] The utility model is suitable for continuously and rapidly heating a part of a workpiece, and is particularly suitable for the continuous production of local heating of plate-shaped thin workpieces. By adopting the method of directly irradiating the local part of the workpiece with a flame, the heating efficiency is greatly improved, and there is no need to heat the whole workpiece, thus significantly reducing the energy consumption. Although the utility model has been described above with reference to the embodiments, various improvements can be made to it and the components therein can be replaced with equivalents without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the utility model can be combined with each other in any way. The reason for not exhaustively describing these combinations in this specification is only to save space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel heating device, comprising a horizontal furnace body (100), wherein an input port and an output port at both ends of the furnace body (100) are respectively connected to a heating chamber (104) inside the furnace body, and a smoke exhaust pipe (101) is provided on the furnace body (100) close to the input port; Features: The heating chamber (104) is provided with a conveying component (200) penetrating both ends of the furnace body (100), and the conveying component (200) drives a plurality of workpieces (3) to move horizontally from the input port end to the output port end in an upright posture through a lifting member (201); A burner (5) is provided at the output port, facing the workpiece (3) at the front end in the conveying direction.

2. The heating device according to claim 1, characterized in that: A blocking member (401) is provided at the output port for blocking the workpiece (3) located at the front end in the conveying direction.

3. The heating device according to claim 2, characterized in that: The blocking member (401) is in contact with the workpiece (3) located at the front end in the conveying direction via a swing mechanism (400); the swing mechanism (400) comprises a swing arm (402) having one end hinged to the furnace body (100); and the other end of the swing arm (402) is connected to the blocking member (401).

4. The heating device according to claim 3, characterized in that: A sensor (404) is also provided within the swing range of the swing arm (402).

5. The heating device according to any one of claims 1 to 4, characterized in that: It also includes a lifting mechanism (700) for lifting the workpiece (3) located at the front end in the conveying direction.

6. The heating device according to claim 5, characterized in that: The lifting mechanism (700) comprises a support arm (704) hinged to the furnace body (100), one end of the support arm (704) facing the workpiece (3) is provided with a lifting portion (701), and one end of the support arm (704) away from the workpiece (3) is hinged to the driving end of a driving component (702).

7. The heating device according to claim 6, characterized in that: It also includes a moving mechanism (600) for adjusting the position of the burner (5).

8. The heating device according to claim 7, characterized in that: The moving mechanism (600) comprises a fixing seat (601) for fixing the burner (5); the fixing seat (601) is movably connected to a rotating arm (604); a second driving component (605) is provided on the rotating arm (604); and a driving end of the second driving component (605) drives the fixing seat (601) to reciprocate along the axial direction of the rotating arm (604); and both ends of the rotating arm (604) are fastened to the furnace body (100) via fasteners (606).

9. The heating device according to claim 1, characterized in that: The supporting member (201) is a supporting frame or a supporting plate.

10. The heating device according to claim 1, characterized in that: A piece taking opening (102) close to the direction of the output opening is provided on one side of the furnace body (100).

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