A heat treatment furnace for processing heating plates and its heat treatment process

Abstract

The present invention relates to a heat treatment technology, specifically a heat treatment furnace for heating plate processing and its heat treatment process, including a heat treatment furnace, a furnace cavity arranged in the cavity of the heat treatment furnace, and a first furnace door and a second furnace door respectively rotatably connected to both ends of the heat treatment furnace. Through a reasonable structural combination and connection relationship of the heat loss prevention structure designed in the present invention, a loading rack is arranged in the furnace cavity of the heat treatment furnace. This design allows multiple heating plates to be placed on different loading racks in batches and be conveniently pushed into the heat treatment furnace for processing. During the process of loading and unloading on the loading rack, the heat loss prevention structure can effectively block and seal the heating wires on both sides of the furnace cavity, so that when the first furnace door is opened, the heating wires can be protected by the heat loss prevention structure and are heated and stored in the closed space on the side wall of the furnace cavity. This design can effectively reduce heat loss, thereby providing a more stable and efficient heat treatment environment for subsequent heating plate processing.

Description

Technical Field

[0001] The present invention relates to a heat treatment technology, specifically a heat treatment furnace for heating plate processing and its heat treatment process. Background Art

[0002] A heat treatment furnace is a device used for heating and processing metal materials, which is widely used in the heat treatment process of metals. The purpose of heat treatment is to change the microstructure of metal materials through processes such as heating, insulation, and cooling, thereby improving their physical properties, such as hardness, strength, toughness, corrosion resistance, etc. Different heat treatment methods can endow metal materials with different mechanical properties to meet various industrial application requirements. A heating plate is a common heating device, mainly used in places such as laboratories, industrial production, and kitchens. Its main function is to heat objects or media through energy sources such as electricity and gas. The main reason for using a heat treatment furnace to process heating plates is to improve their performance, durability, and stability.

[0003] When the current heat treatment furnace for heating plate processing is in use, during the loading and unloading operation, the frequent opening of the furnace door is a major problem. When the furnace door is opened, the high-temperature gas inside the heat treatment furnace quickly dissipates, resulting in a sudden drop in the furnace temperature. This rapid temperature drop not only affects the stability of the heat treatment process but also leads to uneven temperature distribution inside the furnace, thus affecting the final heat treatment effect. Especially in the initial stage of just adding a heating plate for heat treatment, due to the heat loss caused by opening the furnace door, the heat treatment furnace requires a longer heating time to make the newly added heating plate reach the predetermined temperature.

[0004] In this process, the heat loss caused by the opening of the furnace door will significantly increase energy consumption. Because to make up for the temperature drop, the heating system of the heat treatment furnace must keep working, consuming more energy to maintain the required high temperature. This phenomenon not only causes energy waste but may also affect production efficiency. Especially in high-temperature heat treatment processes, the contradiction between the frequent opening of the furnace door and the extension of the heating time directly affects the turnover efficiency of the production line. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat treatment furnace for heating plate processing and its heat treatment process to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A heat treatment furnace for heating plate processing includes a heat treatment furnace, a furnace cavity arranged inside the cavity of the heat treatment furnace, and a first furnace door and a second furnace door respectively rotatably connected to both ends of the heat treatment furnace. A plurality of heating wires are equidistantly arranged on both sides of the inner wall of the furnace cavity. A loading rack is connected inside the cavity of the furnace cavity, and a heat loss prevention structure is installed on the heat treatment furnace;

[0008] The heat dissipation prevention structure includes two plugging mechanisms symmetrically installed on both sides of the furnace cavity, a transmission mechanism connected to the plugging mechanisms and installed on the heat treatment furnace, a positioning mechanism installed on the heat treatment furnace, a guiding mechanism connected to the positioning mechanism, and a linkage mechanism connected to the guiding mechanism. Both the transmission mechanism and the linkage mechanism are connected to the first furnace door;

[0009] When the loading rack inside the furnace cavity is replaced, the first furnace door connected to the transmission mechanism and the linkage mechanism is rotated and opened on the heat treatment furnace. When the first furnace door rotates, it is used to drive the transmission mechanism and the linkage mechanism to act synchronously. The transmission mechanism drives the plugging mechanism to plug the two side cavities of the furnace cavity. The linkage mechanism drives the guiding mechanism to rotate 90 degrees on the positioning mechanism, and the transmission mechanism moves to the port part of the heat treatment furnace.

[0010] A heat treatment furnace for processing heating plates as described above: The loading rack includes two end plates slidably connected inside the furnace cavity of the furnace cavity and a plurality of connecting rods arranged between the two end plates;

[0011] The upper and lower sides of the two end plates are slidably abutted against the upper and lower inner walls of the cavity of the furnace cavity, and a plurality of partition plates are fixedly connected to the plurality of connecting rods at equal intervals in a straight line direction.

[0012] A heat treatment furnace for processing heating plates as described above: The plugging mechanism includes two first plugging plates symmetrically arranged on both sides of the furnace cavity and a second plugging plate slidably connected inside each first plugging plate;

[0013] The opposite surfaces of the two first plugging plates are slidably abutted against both sides of the two end plates. A plurality of first drainage grooves corresponding to the heating wires are equally spaced in the width direction on the two first plugging plates, and connection holes are opened at both ends of the two first plugging plates;

[0014] A plurality of second drainage grooves are opened at the corresponding positions of the second plugging plate to the first drainage grooves, and two threaded holes are opened at the corresponding positions of the two ends of the second plugging plate to the connection holes.

[0015] A heat treatment furnace for processing heating plates as described above: The transmission mechanism includes four screws rotatably connected in the four connection holes, two transmission shafts connected to the screws, and a transmission steel belt connected to the two transmission shafts;

[0016] A first bevel gear is fixedly connected to the top of each of the screws. The first bevel gear meshes with a second bevel gear fixedly connected to the transmission shaft. Two second bevel gears are fixedly connected to the two transmission shafts. One end of each of the two transmission shafts is fixedly connected with a driving wheel;

[0017] Both of the transmission shafts are rotatably connected to the furnace cavity. The two driving wheels are connected by the transmission steel belt. A rotating component is connected to one of the transmission shafts.

[0018] A heat treatment furnace for processing a heating plate as described above: The rotating component includes a third bevel gear fixedly connected to one of the transmission shafts, a fourth bevel gear meshing with the third bevel gear, and a first gear connected to the fourth bevel gear;

[0019] A connecting shaft is fixedly connected to the fourth bevel gear. The connecting shaft is rotatably connected to a rotating seat fixed on the outer wall of the heat treatment furnace. The top of the connecting shaft is fixedly connected to the first gear. A second gear meshes with one side of the first gear. The second gear is fixedly connected to one side of the top of the first furnace door.

[0020] A heat treatment furnace for processing a heating plate as described above: The positioning mechanism includes a positioning column fixedly connected to the heat treatment furnace and a plugging cylinder rotatably connected to the positioning column;

[0021] A fifth bevel gear is fixedly connected to the top of the positioning column. The fifth bevel gear is rotatably connected in a slot formed in the plugging cylinder correspondingly. A third gear is fixedly connected to one side of the plugging cylinder facing the top of the heat treatment furnace. The third gear is rotatably sleeved on the positioning column.

[0022] A heat treatment furnace for processing a heating plate as described above: The guiding mechanism includes a plugging plate slidably inserted into the plugging cylinder and a guiding frame connected to the plugging plate. A connecting roller is fixedly connected to the plugging plate. The connecting roller is fixedly connected to the center top of the guiding frame;

[0023] A reciprocating screw rod is connected to the plugging plate. One end of the reciprocating screw rod is fixedly connected with a sixth bevel gear. One end of the reciprocating screw rod where the sixth bevel gear is located is rotatably connected to the plugging cylinder. The sixth bevel gear meshes with the plugging plate.

[0024] A heat treatment furnace for processing a heating plate as described above: The linkage mechanism includes a rack meshing with the third gear and a positioning pin connected to the rack;

[0025] One end of the rack is rotatably connected with a connecting pin. The connecting pin is fixedly connected to the first furnace door. A chute is formed on one side of the rack facing the top of the heat treatment furnace;

[0026] The sliding groove is in sliding contact with the positioning pin. A collar is provided below the rack. The collar is fixedly connected to the positioning pin. The collar is rotatably sleeved on the positioning column, and the collar is in sliding contact with the third gear.

[0027] The heat treatment process of a heat treatment furnace processed by using a heating plate as described above includes the following steps:

[0028] Step 1: Place the heating plate between adjacent partition plates, and then open the first furnace door and the second furnace door. When the first furnace door is rotated and opened, the second sealing plate is adjusted within the first sealing plate by the connection and drive of the second gear and the first gear;

[0029] Step 2: At this time, the first drainage groove and the second drainage groove are misaligned, and the solid part of the second sealing plate seals the part of the first drainage groove. While the first furnace door is rotated and opened, the rack is moved;

[0030] Step 3: The rack meshes with the third gear to rotate, so that the guiding frame rotates 90 degrees from one side of the heat treatment furnace to the port of the heat treatment furnace;

[0031] Step 4: By pushing the end plate in sliding contact within the guiding frame, the loading rack in the furnace cavity can be pushed out, the unprocessed loading rack can be completely pushed into the furnace cavity, and the original loading rack in the furnace cavity can be taken out after being pushed out;

[0032] Step 5: After closing the first furnace door and the second furnace door, the furnace cavity is closed. At this time, the first drainage groove and the second drainage groove are aligned, and the heat treatment of the heating plate on the loading rack is realized.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] Through the structural combination and connection relationship of the heat loss prevention structure reasonably designed, a loading rack is arranged in the furnace cavity of the heat treatment furnace. With this design, multiple heating plates can be placed on different loading racks in batches and conveniently pushed into the heat treatment furnace for processing. During the loading and unloading process of the loading rack, the heat loss prevention structure can effectively block and seal the heating wires on both sides of the furnace cavity, so that when the first furnace door is opened, the heating wires can be protected by the heat loss prevention structure and heated and stored in the closed space on the side wall of the furnace cavity. This design can effectively reduce heat loss, thereby providing a more stable and efficient heat treatment environment for the subsequent processing of the heating plate.

[0035] Specifically, when the first furnace door is opened, the transmission mechanism can be driven to operate, and the transmission mechanism is connected to the blocking mechanism. Therefore, when the first furnace door is opened, the blocking mechanism can be linked through the transmission mechanism, and the blocking mechanism can protect the heating wires on both sides of the inner wall of the furnace cavity. When the blocking mechanism is blocked, the heating wires are in the closed space on both sides of the inner wall of the furnace cavity. When the heating wires are running, they can continuously store heat in the closed space, which is convenient for the later heat treatment effect of the heating plate. When the first furnace door is opened, heat loss can be reduced, so that the heat generated by the heating wires is stored in the closed space.

[0036] When the first furnace door is opened, the linkage mechanism will act synchronously, and the linkage mechanism can drive the guide mechanism to rotate on the positioning mechanism, so that the guide mechanism originally on the side wall of the heat treatment furnace is rotated ninety degrees to the port position of the heat treatment furnace, so that the external loading rack can be aligned with the furnace cavity with the cooperation of the guide mechanism, and the loading rack that has completed the heat treatment inside the furnace cavity can be squeezed out. The second furnace door is opened and the extruded loading rack can be taken out, which improves the convenience of use. When the first furnace door and the second furnace door are closed, the first furnace door can cause the transmission mechanism and the linkage mechanism to act to open the blocking mechanism. The heat stored in the heating wire in the closed space of the furnace cavity side wall can be quickly merged into the closed space of the first furnace door and the second furnace door to the furnace cavity. The guide mechanism can be rotated to one side of the heat treatment furnace without hindering the closing and use of the first furnace door. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the overall structure of the heat treatment furnace for heating plate processing.

[0038] Figure 2 Schematic diagram of the overall internal structure of the heat treatment furnace for heating plate processing.

[0039] Figure 3 Schematic diagram of the structure of the heat treatment furnace in the heat treatment furnace for heating plate processing.

[0040] Figure 4 Schematic diagram of the structure of the furnace chamber in the heat treatment furnace for heating plate processing.

[0041] Figure 5 Schematic diagram of the structure of the loading rack in the heat treatment furnace for heating plate processing.

[0042] Figure 6 Schematic diagram of the structure of the sealing mechanism in the heat treatment furnace for heating plate processing.

[0043] Figure 7 A schematic diagram of the partial structure of the sealing mechanism in a heat treatment furnace for heating plate processing.

[0044] Figure 8 Schematic diagram of the transmission mechanism in a heat treatment furnace for heating plate processing.

[0045] Figure 9 Structural schematic diagram of the guiding mechanism and the linkage mechanism in the heat treatment furnace for heating plate processing.

[0046] Figure 10 Structural schematic diagram of the linkage mechanism in the heat treatment furnace for heating plate processing.

[0047] Figure 11 Structural schematic diagram of the reciprocating screw rod, the fifth bevel gear and the sixth bevel gear in the heat treatment furnace for heating plate processing.

[0048] Figure 12 Structural schematic diagram of the guiding mechanism in the heat treatment furnace for heating plate processing.

[0049] In the figure: 1, heat treatment furnace; 2, furnace cavity; 3, heating wire; 4, first furnace door; 5, end plate; 6, connecting rod; 7, partition plate; 8, first plugging plate; 9, first drainage groove; 10, connecting hole; 11, second plugging plate; 12, second drainage groove; 13, threaded hole; 14, screw rod; 15, first bevel gear; 16, second bevel gear; 17, transmission shaft; 18, driving wheel; 19, transmission steel belt; 20, third bevel gear; 21, fourth bevel gear; 22, connecting shaft; 23, first gear; 24, second gear; 25, positioning column; 26, fifth bevel gear; 27, insertion cylinder; 28, third gear; 29, rack; 30, connecting pin; 31, chute; 32, positioning pin; 33, collar; 34, sixth bevel gear; 35, reciprocating screw rod; 36, insertion plate; 37, guiding frame; 38, second furnace door. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0051] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a heat treatment furnace for heating plate processing includes a heat treatment furnace 1, a furnace cavity 2 provided in the cavity of the heat treatment furnace 1, and a first furnace door 4 and a second furnace door 38 respectively rotatably connected to both ends of the heat treatment furnace 1. A plurality of heating wires 3 are equidistantly arranged on both sides of the inner wall of the furnace cavity 2. A feeding rack is connected in the cavity of the furnace cavity 2. A heat loss prevention structure is installed on the heat treatment furnace 1;

[0052] The heat dissipation prevention structure includes two plugging mechanisms symmetrically installed on both sides of the furnace cavity 2, a transmission mechanism connected to the plugging mechanism and installed on the heat treatment furnace 1, a positioning mechanism installed on the heat treatment furnace 1, a guiding mechanism connected to the positioning mechanism, and a linkage mechanism connected to the guiding mechanism. Both the transmission mechanism and the linkage mechanism are connected to the first furnace door 4;

[0053] When the loading rack inside the furnace cavity 2 is replaced, the first furnace door 4 connected to the transmission mechanism and the linkage mechanism is rotated and opened on the heat treatment furnace 1. When the first furnace door 4 rotates, it is used to drive the transmission mechanism and the linkage mechanism to act synchronously. The transmission mechanism drives the plugging mechanism to plug the two side cavities of the furnace cavity 2, and the linkage mechanism drives the guiding mechanism to rotate 90 degrees on the positioning mechanism. The transmission mechanism moves to the port part of the heat treatment furnace 1.

[0054] In this embodiment, by placing the heating plate on the loading rack and then pushing the loading rack into the furnace cavity 2 for heat treatment. After the heating plate on the previous loading rack is processed, by opening the first furnace door 4 and the second furnace door 38, when the first furnace door 4 is opened, it can drive the transmission mechanism and the linkage mechanism to act synchronously. Through the action of the transmission mechanism, the plugging mechanism can be realized to plug inside the furnace cavity 2. Therefore, when the first furnace door 4 and the second furnace door 38 are opened, the heating wire 3 is plugged by the plugging mechanism, and the heating wire 3 realizes the effect of heat storage inside the furnace cavity 2, reducing heat loss. When the linkage mechanism acts, it can drive the guiding mechanism to act. The guiding mechanism rotates 90 degrees on the heat treatment furnace 1 and rotates to the port part of the heat treatment furnace 1. At this time, through the guiding mechanism, the loading rack can be conveniently pushed into the furnace cavity 2, and the original loading rack inside the furnace cavity 2 is extruded. When all the internal loading racks are pushed out, the first furnace door 4 and the second furnace door 38 are closed. At this time, the plugging mechanism is opened, and the heat stored inside the furnace cavity 2 can quickly fill the closed space of the heat treatment furnace 1, realizing the effect of rapid heating use and reducing the problem of heat loss when the first furnace door 4 and the second furnace door 38 are opened.

[0055] Please refer to Figure 5 , as a further solution of the present invention, the loading rack includes two end plates 5 slidably connected inside the cavity of the furnace cavity 2 and a plurality of connecting rods 6 arranged between the two end plates 5;

[0056] The upper and lower sides of the two end plates 5 are slidably abutted against the upper and lower inner walls of the cavity of the furnace cavity 2, and a plurality of partition plates 7 are fixedly connected to the plurality of connecting rods 6 at equal intervals along the straight line direction.

[0057] In this embodiment, a plurality of connecting rods 6 are arranged between the two end plates 5, and a plurality of partition plates 7 are equidistantly arranged on the connecting rods 6. Through the gaps formed between the plurality of partition plates 7, the heating plate can be placed between two adjacent partition plates 7 to meet the placement and use of the heating plate. The end plates 5 are fitted to the four walls of the two end cavities of the furnace cavity 2. When the first furnace door 4 and the second furnace door 38 are rotated and opened, due to the design of the end plates 5 inside the furnace cavity 2, the heat inside the furnace cavity 2 can be prevented from erupting outwards, improving the loading and unloading operation environment of the operator on the loading rack and meeting the use requirements.

[0058] Please refer to Figures 6 to 8 , as a further solution of the present invention, the blocking mechanism includes two first blocking plates 8 symmetrically arranged on both sides of the furnace cavity 2 and a second blocking plate 11 slidably connected inside each first blocking plate 8;

[0059] The opposite surfaces of the two first blocking plates 8 are slidably abutted against both sides of the two end plates 5. A plurality of first drainage grooves 9 corresponding to the heating wires 3 are equidistantly opened on the two first blocking plates 8 in the width direction. Connection holes 10 are opened at both ends of the two first blocking plates 8;

[0060] A plurality of second drainage grooves 12 are opened at the positions corresponding to the first drainage grooves 9 on the second blocking plate 11, and two threaded holes 13 are opened at the positions corresponding to the connection holes 10 at both ends of the second blocking plate 11.

[0061] The transmission mechanism includes four screw rods 14 rotatably connected in the four connection holes 10, two transmission shafts 17 connected to the screw rods 14, and a transmission steel belt 19 connected to the two transmission shafts 17;

[0062] A first bevel gear 15 is fixedly connected to the top of each screw rod 14, the first bevel gear 15 meshes with a second bevel gear 16 fixedly connected to the transmission shaft 17, two second bevel gears 16 are fixedly connected to the two transmission shafts 17, and a driving wheel 18 is fixedly connected to one end of each of the two transmission shafts 17;

[0063] The two transmission shafts 17 are both rotatably connected to the furnace cavity 2, the two driving wheels 18 are connected by the transmission steel belt 19, and a rotating component is connected to one of the transmission shafts 17.

[0064] The rotating component includes a third bevel gear 20 fixedly connected to one of the transmission shafts 17, a fourth bevel gear 21 meshing with the third bevel gear 20, and a first gear 23 connected to the fourth bevel gear 21;

[0065] A connecting shaft 22 is fixedly connected to the fourth bevel gear 21. The connecting shaft 22 is rotatably connected to a rotating seat fixed to the outer wall of the heat treatment furnace 1. The top of the connecting shaft 22 is fixedly connected to the first gear 23. A second gear 24 is meshed with one side of the first gear 23. The second gear 24 is fixedly connected to one side of the top of the first furnace door 4.

[0066] In this embodiment, the second gear 24 is fixedly connected to the side where the first furnace door 4 is rotatably connected to the heat treatment furnace 1. When the first furnace door 4 is rotated and opened, since the second gear 24 and the first gear 23 are meshed, the first gear 23 will be driven to rotate. Since the bottom of the first gear 23 is fixedly connected with a fourth bevel gear 21 meshed with the third bevel gear 20 through the connecting shaft 22, and the third bevel gear 20 is fixedly connected to one of the transmission shafts 17, and the two transmission shafts 17 are connected by a transmission steel belt 19 and the driving wheels 18 at both ends, when the third bevel gear 20 drives the transmission shaft 17 to rotate, the other transmission shaft 17 will rotate synchronously.

[0067] Through the rotation of the transmission shaft 17, the second bevel gear 16 fixedly connected to the transmission shaft 17 can be meshed with the first bevel gear 15 to rotate. The four screws 14 will rotate on the connection holes 10. The screws 14 are threadedly connected to the threaded holes 13. Therefore, the second sealing plate 11 is adjusted to rise and fall inside the first sealing plate 8. When the first furnace door 4 is completely opened, at this time, the first drainage groove 9 opened on the first sealing plate 8 and the second drainage groove 12 opened on the second sealing plate 11 will be misaligned, and the solid part of the second sealing plate 11 seals the first drainage groove 9, so as to seal the heating wire 3 inside the furnace cavity 2, making the heating wire 3 in the sealing space on the side wall of the furnace cavity 2. The heating wire 3 operates and stores heat in the sealing space. When the first furnace door 4 is completely closed, the first drainage groove 9 and the second drainage groove 12 coincide. At this time, the heat in the sealing space on the inner wall of the furnace cavity 2 will flow into the cavity of the furnace cavity 2 from the second drainage groove 12 and the first drainage groove 9, which can reduce the heat loss when the first furnace door 4 and the second furnace door 38 are opened, and can improve the heat treatment rate of the heating plate.

[0068] Please refer to Figures 9 to 12 , as a further solution of the present invention, the positioning mechanism includes a positioning column 25 fixedly connected to the heat treatment furnace 1 and a plug-in cylinder 27 rotatably connected to the positioning column 25;

[0069] The top of the positioning column 25 is fixedly connected with a fifth bevel gear 26. The fifth bevel gear 26 is rotatably connected in a slot hole correspondingly opened on the plug-in cylinder 27. One side of the plug-in cylinder 27 facing the top of the heat treatment furnace 1 is fixedly connected with a third gear 28. The third gear 28 is rotatably sleeved on the positioning column 25.

[0070] The guiding mechanism includes a plugging plate 36 slidably plugged into the plugging cylinder 27 and a guiding frame 37 connected to the plugging plate 36. A connecting roller is fixedly connected to the plugging plate 36, and the connecting roller is fixedly connected to the center top of the guiding frame 37;

[0071] A reciprocating screw rod 35 is connected to the plugging plate 36. One end of the reciprocating screw rod 35 is fixedly connected with a sixth bevel gear 34. The reciprocating screw rod 35 at one end of the sixth bevel gear 34 is rotatably connected to the plugging cylinder 27, and the sixth bevel gear 34 meshes with the plugging plate 36.

[0072] The linkage mechanism includes a rack 29 meshing with the third gear 28 and a positioning pin 32 connected to the rack 29;

[0073] One end of the rack 29 is rotatably connected with a connecting pin 30. The connecting pin 30 is fixedly connected to the first furnace door 4. A chute 31 is formed on one side of the rack 29 facing the top of the heat treatment furnace 1;

[0074] The chute 31 is in sliding contact with the positioning pin 32. A collar 33 is arranged below the rack 29. The collar 33 is fixedly connected to the positioning pin 32. The collar 33 is rotatably sleeved on the positioning column 25, and the collar 33 is in sliding contact with the third gear 28.

[0075] In this embodiment, since one end of the rack 29 is rotatably connected to the connecting pin 30, and the connecting pin 30 is fixedly connected to the first furnace door 4, when the first furnace door 4 is opened, the rack 29 will be driven to move. The chute 31 formed on the rack 29 is slidably connected to the positioning pin 32, and the positioning pin 32 is fixedly connected to the collar 33 rotating on the positioning column 25. Therefore, through the limitation of the positioning pin 32 and the collar 33, the rack 29 will mesh with the third gear 28 and move. When the rack 29 moves, it can drive the third gear 28 to rotate, so that the plugging cylinder 27 rotates on the positioning column 25. Since the reciprocating screw rod 35 is rotatably connected to the plugging cylinder 27 and the reciprocating screw rod 35 is threadedly connected to the plugging plate 36, when the plugging cylinder 27 rotates around the positioning column 25, the sixth bevel gear 34 will mesh and rotate on the fifth bevel gear 26;

[0076] During the 90-degree rotation of the insertion cylinder 27 around the positioning column 25, the meshing of the sixth bevel gear 34 with the fifth bevel gear 26 causes the insertion plate 36 to extend and then retract and adjust on the insertion cylinder 27 under the driving of the threaded connection of the reciprocating screw rod 35. Therefore, when the first furnace door 4 rotates and opens, the insertion plate 36 will first extend on the insertion cylinder 27. When the extension distance of the guiding frame 37 on the insertion cylinder 27 is the largest, at this time, the guiding frame 37 is at the corner of the heat treatment furnace 1. When the guiding frame 37 crosses the corner of the heat treatment furnace 1, the reciprocating screw rod 35 rotates to make the insertion plate 36 retract on the insertion cylinder 27. As a result, after the guiding frame 37 rotates 90 degrees, it can be close to the port of the heat treatment furnace 1, facilitating the feeding rack to be pushed on the guiding frame 37 and aligned with the inner wall of the cavity of the furnace chamber 2, which is convenient for the feeding rack to be pushed in for use. When the first furnace door 4 is closed, it can make the insertion plate 36 move and adjust in the reverse of the original adjustment steps, and rotate 90 degrees to the side wall of the heat treatment furnace 1, avoiding interfering with the closing of the first furnace door 4 and improving the use effect.

[0077] The heat treatment process of the heat treatment furnace processed by a heating plate as described above includes the following steps:

[0078] Step 1: Place the heating plate between adjacent partition plates 7, and then open the first furnace door 4 and the second furnace door 38. When the first furnace door 4 rotates and opens, the second sealing plate 11 is adjusted in the first sealing plate 8 through the connection and drive of the second gear 24 and the first gear 23;

[0079] Step 2: At this time, the first drainage groove 9 and the second drainage groove 12 are misaligned, and the solid part of the second sealing plate 11 seals the first drainage groove 9. At the same time when the first furnace door 4 rotates and opens, the rack 29 is moved;

[0080] Step 3: The rack 29 meshes with the third gear 28 and rotates, so that the guiding frame 37 rotates 90 degrees from one side of the heat treatment furnace 1 to the port of the heat treatment furnace 1;

[0081] Step 4: By sliding the end plate 5 against the inside of the guiding frame 37 and pushing, the feeding rack in the furnace chamber 2 can be pushed out, the unprocessed feeding rack can be completely pushed into the furnace chamber 2, and the original feeding rack in the furnace chamber 2 can be pushed out and taken out;

[0082] Step 5: After closing the first furnace door 4 and the second furnace door 38, the furnace chamber 2 is sealed. At this time, the first drainage groove 9 and the second drainage groove 12 are aligned, and the heat treatment of the heating plate on the feeding rack is realized.

[0083] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present invention, all technical solutions that can implement the present invention in other specific forms are included in the present invention.

Claims

1. A heat treatment furnace for processing a heating plate, comprising a heat treatment furnace (1), a furnace chamber (2) arranged in the cavity of the heat treatment furnace (1), and a first furnace door (4) and a second furnace door (38) respectively rotatably connected to both ends of the heat treatment furnace (1), a plurality of heating wires (3) are equidistantly arranged on both sides of the inner wall of the furnace chamber (2), and characterized in that: A loading rack is connected to the cavity of the furnace cavity (2), and a heat loss prevention structure is installed on the heat treatment furnace (1); The heat loss prevention structure comprises two blocking mechanisms symmetrically mounted on both sides of the furnace chamber (2), a transmission mechanism connected to the blocking mechanisms and mounted on the heat treatment furnace (1), a positioning mechanism mounted on the heat treatment furnace (1), a guide mechanism connected to the positioning mechanism, and a linkage mechanism connected to the guide mechanism, wherein both the transmission mechanism and the linkage mechanism are connected to the first furnace door (4); When the first furnace door (4) rotates, the transmission mechanism and the linkage mechanism are driven to move synchronously, and the transmission mechanism drives the blocking mechanism to block the cavities on both sides of the furnace cavity (2); The positioning mechanism comprises a positioning column (25) fixedly connected to the heat treatment furnace (1) and a plug-in cylinder (27) rotatably connected to the positioning column (25); The top of the positioning column (25) is fixedly connected to a fifth bevel gear (26), and the fifth bevel gear (26) is rotatably connected to a corresponding slot opened on the plug-in cylinder (27). The plug-in cylinder (27) is fixedly connected to a third gear (28) on one side facing the top of the heat treatment furnace (1), and the third gear (28) is rotatably sleeved on the positioning column (25); The guide mechanism includes a plug-in plate (36) slidably plugged into the plug-in cylinder (27) and a guide frame (37) connected to the plug-in plate (36), a connecting roller fixedly connected to the plug-in plate (36), and the connecting roller is fixedly connected to the center top of the guide frame (37); A reciprocating screw rod (35) is connected to the plug-in plate (36), one end of the reciprocating screw rod (35) is fixedly connected to the sixth bevel gear (34), the reciprocating screw rod (35) at one end of the sixth bevel gear (34) is rotatably connected to the plug-in cylinder (27), and the sixth bevel gear (34) is meshed with the plug-in plate (36); The linkage mechanism includes a rack (29) meshing with the third gear (28) and a positioning pin (32) connected to the rack (29); One end of the rack (29) is rotatably connected to a connecting pin (30), the connecting pin (30) is fixedly connected to the first furnace door (4), and a sliding groove (31) is provided on one side of the rack (29) facing the top of the heat treatment furnace (1); The slide groove (31) is in sliding contact with the positioning pin (32), a collar (33) is provided below the rack (29), the collar (33) is fixedly connected to the positioning pin (32), the collar (33) is rotatably sleeved on the positioning column (25), and the collar (33) is in sliding contact with the third gear (28).

2. A heat treatment furnace for heating plate processing according to claim 1, characterized in that: The loading rack comprises two end plates (5) slidably connected in the furnace cavity (2) and a plurality of connecting rods (6) arranged between the two end plates (5); The upper and lower sides of the two end plates (5) are in sliding contact with the upper and lower inner walls of the furnace cavity (2), and a plurality of partition plates (7) are fixedly connected to the plurality of connecting rods (6) at equal intervals along a straight line direction.

3. A heat treatment furnace for heating plate processing according to claim 2, characterized in that: The blocking mechanism comprises two first blocking plates (8) symmetrically arranged on both sides of the furnace cavity (2) and a second blocking plate (11) slidably connected inside each first blocking plate (8); The opposing surfaces of the two first blocking plates (8) are in sliding contact with the two sides of the two end plates (5), a plurality of first discharge grooves (9) corresponding to the heating wires (3) are equidistantly provided on the two first blocking plates (8) along the width direction, and connection holes (10) are provided at both ends of the two first blocking plates (8).

4. A heat treatment furnace for heating plate processing according to claim 3, characterized in that: A plurality of second drainage grooves (12) are provided on the second blocking plate (11) at positions corresponding to the first drainage grooves (9), and two threaded holes (13) are provided at positions corresponding to the connecting holes (10) at both ends of the second blocking plate (11).

5. The heat treatment furnace for heating plate processing according to claim 4, characterized in that: The transmission mechanism comprises four screw rods (14) rotatably connected in four connection holes (10), two transmission shafts (17) connected to the screw rods (14), and a transmission steel belt (19) connected to the two transmission shafts (17); The top of each screw rod (14) is fixedly connected to a first bevel gear (15), the first bevel gear (15) is meshed with a second bevel gear (16) fixedly connected to a transmission shaft (17), two second bevel gears (16) are fixedly connected to the two transmission shafts (17), and one end of each transmission shaft (17) is fixedly connected to a driving wheel (18); The two transmission shafts (17) are both rotatably connected to the furnace chamber (2), and the two driving wheels (18) are connected via a transmission steel belt (19), wherein a rotating assembly is connected to one of the transmission shafts (17).

6. The heat treatment furnace for heating plate processing according to claim 5, characterized in that: The rotating assembly comprises a third bevel gear (20) fixedly connected to one of the transmission shafts (17), a fourth bevel gear (21) meshing with the third bevel gear (20), and a first gear (23) connected to the fourth bevel gear (21); A connecting shaft (22) is fixedly connected to the fourth bevel gear (21), and the connecting shaft (22) is rotatably connected to a rotating seat fixed to the outer wall of the heat treatment furnace (1). The top of the connecting shaft (22) is fixedly connected to the first gear (23), and a second gear (24) is meshed with one side of the first gear (23). The second gear (24) is fixedly connected to one side of the top of the first furnace door (4).

7. A heat treatment process using a heat treatment furnace for processing a heating plate according to claim 6, characterized in that: The following steps are involved: Step 1: Place the heating plate between adjacent partition plates (7), then open the first furnace door (4) and the second furnace door (38), and drive the second sealing plate (11) to adjust within the first sealing plate (8) by connecting the second gear (24) and the first gear (23); Step 2: At this time, the first discharge trough (9) and the second discharge trough (12) are misaligned, and the solid part of the second blocking plate (11) blocks the first discharge trough (9), and the rack (29) is driven to move while the first furnace door (4) is rotated and opened; Step 3: The rack (29) engages with the third gear (28) and rotates, so that the guide frame (37) rotates ninety degrees from one side of the heat treatment furnace (1) to the end of the heat treatment furnace (1); Step 4: By sliding the end plate (5) against the guide frame (37) and pushing it, the loading rack in the furnace cavity (2) can be ejected, the unheat-treated loading rack is completely pushed into the furnace cavity (2), and the original loading rack in the furnace cavity (2) is ejected and removed; Step 5: After closing the first furnace door (4) and the second furnace door (38), align the first discharge trough (9) and the second discharge trough (12).

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