Heat treatment device, system and method

Abstract

The present invention relates to the field of heat treatment technology, and in particular, to a heat treatment device, system and method. The heat treatment device includes a furnace body assembly and a transmission assembly. The furnace body assembly includes a furnace body unit and a heating part. The transmission assembly includes a base unit, a rolling unit and a first driving part. Part of the base unit is arranged in the space surrounded by the furnace body unit. The rolling unit includes a plurality of first rollers. The heat treatment device includes a first area and a second area. The first area and the second area are connected and arranged in sequence along the length direction of the base unit. The second area is arranged in the furnace body unit, and the top of the first roller in the rotation direction points from the first area to the second area along the horizontal tangent direction. The distance difference of the central axis of each first roller in the first area along the height direction of the base unit is within a first height range. In this way, the problem of uneven deformation after heat treatment caused by the lack of gaps between adjacent workpieces on the same layer is solved.

Description

Technical Field

[0001] The present invention relates to the field of heat treatment technology, and in particular to a heat treatment device, system and method. Background Art

[0002] Currently, heat treatment can improve the strength, hardness, toughness and wear resistance of workpieces. Heat treatment can also change the physical and chemical properties of workpieces. Surface heat treatment can improve the hardness and wear resistance of the workpiece surface while maintaining the toughness of the core. Heat treatment processes can also improve the corrosion resistance of metals and extend the service life of workpieces. When heat treating multiple annular workpieces (such as the inner and outer rings of bearings), the workpieces are usually placed in a tray and multiple layers of workpieces are stacked. The tray filled with workpieces is then transferred to a heating furnace for heat treatment.

[0003] However, after a long period of repeated heating and cooling, the tray will deform. If the deformed tray continues to be used, the number of stacked layers of the workpiece will be reduced. When the workpiece is heat treated, the irregular deformation of the tray will cause squeezing between multiple workpieces, resulting in local restriction of the workpiece's thermal expansion and contraction, which will make the workpiece's thermal expansion and contraction irregular, affecting the workpiece's processing progress. Therefore, the workpiece can be placed directly on the roller for heat treatment. However, when the workpiece is heated on the roller, the workpiece will deform in the radial direction of the workpiece, so a gap needs to be reserved between adjacent workpieces on the same layer for thermal expansion. If additional equipment is added to create a gap within a suitable range between adjacent workpieces on the same layer, the cost of heat treatment will increase. If the gap between adjacent workpieces on the same layer is manually controlled within a suitable range, the processing efficiency will be too low. Summary of the invention

[0004] In order to solve the problem that there is no gap between adjacent workpieces on the same layer, resulting in uneven deformation after heat treatment, the present invention provides a heat treatment device, system and method.

[0005] In a first aspect, the present invention provides a heat treatment device, comprising:

[0006] A furnace body assembly, the furnace body assembly comprising a furnace body unit and a heating part; the furnace body unit and the heating part are detachably connected; the heating part is arranged in a space surrounded by the furnace body unit;

[0007] A transmission component, the transmission component comprises a base unit, a rolling unit, and a first driving unit; the furnace unit is detachably connected to the base unit; a portion of the base unit is arranged in a space surrounded by the furnace unit; the rolling unit comprises a plurality of first rollers; the first rollers have the same outer diameter; the plurality of first rollers are movably connected to the base unit along the length direction of the base unit; the central axes of the plurality of first rollers are arranged in parallel; the first driving unit is drivingly connected to the first rollers;

[0008] The heat treatment device includes a first area and a second area; the first area and the second area are connected in sequence along the length direction of the base unit; the second area is arranged in the furnace body unit; the top end of the first roller in the rotation direction points from the first area to the second area along the horizontal tangent direction; the distance difference between the central axis axes of each of the first rollers in the first area along the height direction of the base unit is within a first height range.

[0009] In some embodiments, the heat treatment device further includes a third area; the third area, the first area, and the second area are sequentially arranged along the length direction of the base unit;

[0010] The rolling unit also includes a second roller bar; the outer diameter of the second roller bar gradually increases from the middle position of the second roller bar in the axial direction toward the two ends close to the axial direction of the second roller bar, and the minimum angle between the tangent of the outer peripheral surface of the second roller bar along the axial direction of the second roller bar and the central axis of the second roller bar is within a first angle range; a set number of the second roller bars are movably connected to the base unit in the third area; the second roller bar is drivingly connected to the first driving unit; the rotation direction of the second roller bar is the same as the rotation direction of the first roller bar; the distance difference of the central axis of the second roller bar along the height direction of the base unit is within a second height range.

[0011] In some embodiments, a distance difference between central axes of the first rollers in the second area along a height direction of the base unit is within a third height range.

[0012] In some embodiments, the heat treatment device further includes a fourth region; the first region, the fourth region, and the second region are sequentially arranged along the length direction of the base unit;

[0013] The rolling unit further includes a third roller; the outer diameter of the third roller gradually decreases from the middle position of the third roller in the axial direction toward the two ends close to the axial direction of the third roller, and the minimum angle between the tangent line of the outer peripheral surface of the third roller along the axial direction of the third roller and the central axis of the third roller is within a second angle range;

[0014] A set number of the third rollers are movably connected to the base unit in the fourth area; the third rollers are drivingly connected to the first driving unit; the rotation direction of the third rollers is the same as the rotation direction of the first rollers; the distance difference of the central axis of the third rollers along the height direction of the base unit is within the fourth height range.

[0015] In some embodiments, the furnace unit includes a furnace wall and two sealing doors; one of the sealing doors is movably connected to one end of the furnace wall in the length direction, and the other sealing door is movably connected to the other end of the furnace wall in the length direction; the second area is arranged in the furnace wall;

[0016] The base unit includes a fixed seat, a first movable seat, and a second driving part; the furnace wall is detachably connected to the fixed seat; part of the fixed seat and part of the first movable seat are respectively arranged in the space surrounded by the furnace wall; one end of the first movable seat close to the first area is movably connected to the fixed seat; the second driving part is drivingly connected to the first movable seat; part of the first movable seat is arranged in the second area, and another part of the first movable seat is arranged on the side of the second area close to the first area; part of the first rollers are movably connected to the fixed seat along the length direction of the fixed seat, and another part of the first rollers are movably connected to the first movable seat along the length direction of the fixed seat; the spacing of the central axes of each of the first rollers connected to the fixed seat in the first area along the height direction of the first movable seat is within the fifth height range;

[0017] The first movable seat includes a first state and a second state; the first state includes that the central axis of the first roller rod of the first movable seat close to the second area is higher than the central axis of the first roller rod close to the first area in the second area by a sixth height range; the second state includes the projection of the sealing door toward the base unit in the space between the first movable seat and the fixed seat.

[0018] In some embodiments, the spacing between the central axis axes of the first rollers movably connected to the first movable seat along the height direction of the first movable seat is within a range of seven heights.

[0019] In some embodiments, the heat treatment device further includes a fifth region; the fifth region is disposed on a side of the second region away from the first region;

[0020] The furnace unit comprises a furnace wall and two sealing doors; one of the sealing doors is movably connected to one end of the furnace wall in the length direction, and the other sealing door is movably connected to the other end of the furnace wall in the length direction; the second area is arranged in the furnace wall;

[0021] The base unit includes a fixed seat, a second movable seat, and a third driving part; the furnace wall is detachably connected to the fixed seat; part of the fixed seat and part of the second movable seat are respectively arranged in the space surrounded by the furnace wall; one end of the second movable seat close to the fifth area is movably connected to the fixed seat; the second movable seat is drivingly connected to the third driving part; part of the second movable seat is arranged in the second area, and the other part of the second movable seat is arranged on the side of the second area away from the first area; part of the first roller rods are movably connected to the fixed seat along the length direction of the fixed seat, and the other part of the first roller rods are movably connected to the second movable seat along the length direction of the fixed seat; the spacing between the central axes of the first roller rods connected to the fixed seat in the second area along the height direction of the second movable seat is within the seventh height range;

[0022] The second movable seat includes a third state and a fourth state; the third state includes that the central axis of the first roller rod of the second movable seat close to the second area is lower by eight height ranges than the central axis of the first roller rod close to the first area in the second area; the fourth state includes the projection of the sealing door toward the base unit in the space between the second movable seat and the fixed seat.

[0023] In some embodiments, the spacing between the central axis axes of each of the first rollers movably connected to the second movable seat along the height direction of the second movable seat is within the ninth height range; the spacing between the central axis axes of each of the first rollers connected to the fixed seat in the fifth area along the height direction of the fixed seat is within the tenth height range.

[0024] In a second aspect, the present invention provides a heat treatment system, which is applied to any of the heat treatment devices in the first aspect, and comprises:

[0025] A plurality of workpieces are arranged on the first roller in multiple rows, columns and layers; the workpiece close to the first roller abuts against at least three of the first rollers; 0<B<0.2A; 0<C<0.05A; wherein A is the diameter of the first roller; B is the distance difference of the central axis of each of the first rollers in the first area along the height direction of the base unit; C is the distance difference of the central axis of each of the first rollers in the second area along the height direction of the base unit.

[0026] In a third aspect, the present invention provides a heat treatment method, which is applied to the heat treatment system in the second aspect, and the heat treatment method comprises:

[0027] Step S10, based on the triggering of the heat treatment instruction, the heating unit operates; wherein the workpiece is located in the first area, and the distance between adjacent workpieces in the same layer is within the first spacing range;

[0028] Step S20, based on the temperature in the furnace unit reaching the set temperature, the first roller moves the workpiece to the second area; wherein the temperature of the first area is lower than the temperature of the second area, and during the movement of the workpiece in the first area, the distance between adjacent workpieces in the same layer gradually increases from the first spacing range to the second spacing range;

[0029] Step S30, based on the workpiece reaching the set temperature, the heat treatment is completed.

[0030] In order to solve the problem that there is no gap between adjacent workpieces on the same layer, resulting in uneven deformation after heat treatment, the present invention has the following advantages:

[0031] When placing the workpieces on the first roller, adjacent workpieces on the same layer abut against each other, thereby reducing the placement time of the workpieces. The distance difference between the central axis axes of the first rollers in the first area along the height direction of the base unit is within the first height range, so that before the workpieces are transferred to the second area, adjacent workpieces on the same layer can be shaken, thereby generating gaps between adjacent workpieces on the same layer. Finally, when the workpieces are processed by the heat treatment device, space can be reserved between adjacent workpieces on the same layer for heating and expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A top view of a heat treatment apparatus according to an embodiment is shown;

[0033] Figure 2 A cross-sectional view of a heat treatment apparatus according to an embodiment is shown;

[0034] Figure 3 A cross-sectional view of a heat treatment apparatus according to another embodiment is shown;

[0035] Figure 4 A flow chart of a heat treatment method according to an embodiment is shown.

[0036] Figure numerals: furnace body assembly 01; furnace body unit 11; furnace wall 111; sealing door 112; heating part 12; transmission assembly 02; base unit 21; fixed seat 211; first movable seat 212; second movable seat 213; rolling unit 22; first roller 221; second roller 222; third roller 223; workpiece 03. DETAILED DESCRIPTION

[0037] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0038] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0039] The tray currently used to place the workpiece 03 to be heat-treated will deform after repeated cycles of heating and cooling. Continuing to use the deformed tray will reduce the number of stackable layers of the workpiece 03, and will also cause the workpiece 03 to be squeezed between multiple workpieces 03 due to the irregular deformation of the tray when the workpiece 03 is heat-treated, resulting in local restrictions on the workpiece 03 when it expands and contracts, thereby making the workpiece 03 expand and contract irregularly, affecting the processing progress of the workpiece 03. Therefore, the workpiece 03 can be directly placed on the roller for heat treatment. However, when the workpiece 03 is heated on the roller, the workpiece 03 will deform in the radial direction of the workpiece 03, so a gap needs to be reserved between adjacent workpieces 03 on the same layer for thermal expansion. If additional equipment is added to make adjacent workpieces 03 on the same layer have a gap within a suitable range, the cost of heat treatment will increase. If the gap between adjacent workpieces 03 in the same layer is manually controlled within a suitable range, the processing efficiency will be too low. Therefore, in order to solve the above problems, the present invention provides a heat treatment device.

[0040] In this embodiment, if Figure 1 As shown, a heat treatment device may include a furnace assembly and a transmission assembly 02 .

[0041] The furnace body assembly 01 may include a furnace body unit 11 and a heating portion 12. The furnace body unit 11 may be detachably connected to the heating portion 12, and the heating portion 12 may be disposed in a space surrounded by the furnace body unit 11. The heating portion 12 may heat the workpiece 03, and the furnace body unit 11 may maintain the internal temperature and keep the heat, thereby achieving uniform heat transfer and ensuring that the workpiece 03 is uniformly heated and diffused at a constant temperature, thereby achieving the desired heat treatment effect.

[0042] The transmission component 02 may include a base unit 21, a rolling unit 22, and a first driving unit. The furnace unit 11 may be detachably connected to the base unit 21, and part of the base unit 21 may be arranged in the space surrounded by the furnace unit 11. The rolling unit 22 may include a plurality of first rollers 221, and the outer diameters of the first rollers 221 along the length direction are equal. The plurality of first rollers 221 may be movably connected to the base unit 21 along the length direction of the base unit 21. The central axes of the plurality of first rollers 221 may be arranged in parallel, and the first driving unit may be drivably connected to the first rollers 221. The workpiece 03 is placed on the first roller 221, and the first driving unit may drive the plurality of first rollers 221 to deliver the workpiece 03 into the furnace unit 11, and then the heating unit 12 heats the workpiece 03.

[0043] The heat treatment device may include a first area and a second area. The first area and the second area may be arranged in sequence along the length direction of the base unit 21. The first area is located at Figure 1On the right side, the second area is arranged in the furnace body unit 11. The top end of the first roller 221 in the rotation direction can point from the first area to the second area along the horizontal tangent direction. The distance difference between the central axis of each first roller 221 in the first area along the height direction of the base unit 21 is within a first height range, and the first height can be one quarter of the outer diameter of the first roller 221. When placing multiple workpieces 03 on multiple first rollers 221, adjacent workpieces 03 on the same layer abut against each other, thereby reducing the placement time of the workpieces 03. Since the distance difference between the central axis of each first roller 221 in the first area along the height direction of the base unit 21 is within the first height range, multiple workpieces 03 can be shaken, thereby generating gaps between adjacent workpieces 03 on the same layer, and finally, when the workpieces 03 are processed by the heat treatment device, space for heating and expansion can be reserved between adjacent workpieces 03 on the same layer.

[0044] In this embodiment, if Figure 2 As shown, the heat treatment device may further include a third area. The third area, the first area, and the second area are sequentially arranged along the length direction of the base unit 21. The third area may be used for stacking and placing the workpieces 03.

[0045] Since it is difficult to ensure that adjacent workpieces 03 on the same layer are closely connected when placing multiple workpieces 03, there may be a certain gap between adjacent workpieces 03 on the same layer after placement. As the first roller 221 rotates, there will be a certain bump. Since there is a certain gap when placing, the bump may make the gap too large, thereby causing the stacked workpieces 03 to collapse. Therefore, the rolling unit 22 can also include a second roller 222. The outer diameter of the second roller 222 gradually increases from the middle position of the axial direction of the second roller 222 toward the two ends close to the axial direction of the second roller 222. Multiple second rollers 222 can be located in the third area, so that when multiple workpieces 03 are placed on the second roller 222, the gap between the multiple workpieces 03 can be reduced, and in the process of the second roller 222 rotating to move the workpiece 03 toward the furnace unit 11, the gap can be further reduced, so that the gap between adjacent workpieces 03 on the same layer can be eliminated as much as possible. The minimum angle between the tangent of the outer surface of the second roller 222 along the axial direction of the second roller 222 and the central axis of the second roller 222 is within the first angle range, which can be 1°~3°, so as to prevent the collapse caused by the excessive gap between the workpieces 03 during the subsequent bumping process. A set number of second rollers 222 are movably connected to the base unit 21 in the third area, and the second roller 222 is drivingly connected to the first driving unit, and the first driving unit can drive the second roller 222 to rotate toward the second area, so that the workpiece 03 can enter the furnace unit 11 for heating. The rotation direction of the second roller 222 is the same as that of the first roller 221, and the distance difference of the central axis of the second roller 222 along the height direction of the base unit 21 is within the second height range, which can be one-fifth of the outer diameter of the middle position of the second roller 222, so that the heights of multiple second rollers 222 can be located in the same plane as much as possible, so that when the second roller 222 transfers the workpiece 03, the jitter is very small, and the gaps between adjacent workpieces 03 on the same layer can be better closed.

[0046] In this embodiment, if Figure 2 As shown, the distance difference between the central axes of the first rollers 221 in the second area along the height direction of the base unit 21 is within the third height range, and the third height range can be one fifth of the outer diameter of the first roller 221, so that the heights of the first rollers 221 in the second area also have a drop. Therefore, in the second area, the gaps between the workpieces 03 can be gradually expanded through bumping, preventing the gaps between adjacent workpieces 03 on the same layer from being insufficient, resulting in mutual extrusion and uneven deformation after heating.

[0047] In this embodiment, if Figure 1 As shown, the heat treatment device may further include a fourth area. The first area, the fourth area, and the second area may be sequentially arranged along the length direction of the base unit 21 , and the fourth area is located in the furnace body unit 11 .

[0048] The rolling unit 22 may also include a third roller 223. The outer diameter of the third roller 223 gradually decreases from the middle position of the axial direction of the third roller 223 toward the two ends close to the axial direction of the third roller 223, so that when multiple workpieces 03 are transmitted through the third roller 223, the multiple workpieces 03 can be guided toward the two ends of the axial direction of the third roller 223, so that gaps are fully generated between multiple adjacent workpieces 03 in the same layer, and the multiple adjacent workpieces 03 in the same layer are prevented from being squeezed. The minimum angle between the tangent line of the outer peripheral surface of the third roller 223 along the axial direction of the third roller 223 and the central axis of the third roller 223 is within the second angle range, and the second angle range can be the same as the first angle range, so as to prevent the workpiece 03 from being too large in the process of bumping when the workpiece 03 is transmitted on the third roller 223, resulting in excessive gaps between multiple adjacent workpieces 03 in the same layer, and thus collapse.

[0049] A set number of third rollers 223 are movably connected to the base unit 21 in the fourth area. The third rollers 223 can be drivably connected to the first driving unit. The rotation direction of the third rollers 223 is the same as that of the first rollers 221. The first driving unit can drive the third rollers 223 to rotate toward the second area. The distance difference between the central axis of the third roller 223 along the height direction of the base unit 21 is within the fourth height range. The fourth height range can be the same as the first height range, so that the heights of the plurality of third rollers 223 have a drop, so that sufficient gaps are generated between the adjacent plurality of workpieces 03 on the same layer within a shorter transmission distance, and the third rollers 223 can be arranged more compactly. In addition, sufficient space for heating and expansion can be reserved between the adjacent plurality of workpieces 03 on the same layer.

[0050] In this embodiment, if Figure 3 As shown, the furnace body unit 11 may include a furnace wall 111 and two sealing doors 112. One sealing door 112 is movably connected to one end of the furnace wall 111 in the length direction, and the other sealing door 112 is movably connected to the other end of the furnace wall 111 in the length direction, that is, a sealing door 112 is respectively arranged at both ends of the furnace wall 111 in the length direction, and the second area is arranged in the furnace wall 111. When the workpiece 03 enters the second area, the two sealing doors 112 are closed, and the heating unit 12 heats the workpiece 03, so that the workpiece 03 in the second area can better realize uniform heat transfer, ensuring that the workpiece 03 is uniformly heated and diffused at a constant temperature.

[0051] The base unit 21 may include a fixed seat 211, a first movable seat 212, and a second driving unit. The furnace wall 111 may be detachably connected to the fixed seat 211. Part of the fixed seat 211 and part of the first movable seat 212 may be respectively arranged in the space surrounded by the furnace wall 111. The end of the first movable seat 212 close to the first area may be movably connected to the fixed seat 211, and the second driving unit is drivingly connected to the first movable seat 212. The second driving unit may drive the first movable seat 212 to flip around the end of the first movable seat 212 close to the first area, and after the first movable seat 212 rotates, it is located outside the furnace body unit 11, so that the heat resistance of the first movable seat 212 does not need to be set high, and the requirements are low, thereby saving the manufacturing cost of the first movable seat 212. Part of the first movable seat 212 is arranged in the second area, and another part of the first movable seat 212 is arranged on the side of the second area close to the first area, so that after the workpiece 03 is transferred to the second area through the first movable seat 212, the first movable seat 212 rotates, and the sealing door 112 can close the second area to prevent the heat loss in the second area and improve the heating efficiency. Part of the first roller rod 221 is movably connected with the fixed seat 211 along the length direction of the fixed seat 211, and another part of the first roller rod 221 is movably connected with the first movable seat 212 along the length direction of the fixed seat 211. The spacing of the central axis of each first roller rod 221 connected to the fixed seat 211 in the first area along the height direction of the first movable seat 212 is within the fifth height range, and the fifth height range can be the same as the first height range, so that the height between the first roller rods 221 has a drop, so that multiple workpieces 03 can be bumped during the transmission process, thereby generating sufficient gaps between adjacent workpieces 03 in the same layer. Then, the workpiece 03 can be transferred to the second area through the first roller rod 221, and the heating unit 12 heats the workpiece 03.

[0052] like Figure 2 , Figure 3 As shown, the first movable seat 212 may include a first state and a second state. The first state may include that the central axis of the first roller 221 of the first movable seat 212 close to the second area is higher than the central axis of the first roller 221 close to the first area in the second area by a sixth height range, and the sixth height range may be the same as the second height range, so that one end of the first movable seat 212 close to the second area and the first roller 221 close to the first movable seat 212 in the second area have a certain height difference, and when the workpiece 03 is transferred to the second area and leaves the first movable seat 212, a certain bump may be generated, so that a certain gap is generated between adjacent workpieces 03 in the same layer. The second state may include that the projection of the sealing door 112 close to the base unit 21 is in the space between the first movable seat 212 and the fixed seat 211, so that the furnace body unit 11 can form a closed space, which is more conducive to heating the workpiece 03 and improving the heating efficiency.

[0053] In this embodiment, if Figure 2 As shown, the spacing between the central axis axes of the first rollers 221 movably connected to the first movable seat 212 in the height direction of the first movable seat 212 is within the seventh height range. The seventh height range can be the same as the second height range, so that the plurality of first rollers 221 on the first movable seat 212 have no height difference, and when the workpiece 03 is transferred on the first movable seat 212 with a certain slope, the stacked workpiece 03 can be prevented from collapsing.

[0054] In this embodiment, if Figure 3 As shown, the heat treatment device may further include a fifth area. The fifth area is arranged on a side of the second area away from the first area, so that after the workpiece 03 is heat treated, the corresponding workpiece 03 can be transported to the fifth area, which is located outside the furnace unit 11.

[0055] The furnace body unit 11 may include a furnace wall 111 and two sealing doors 112. One sealing door 112 may be movably connected to one end of the furnace wall 111 in the length direction, and the other sealing door 112 may be movably connected to the other end of the furnace wall 111 in the length direction. That is, a sealing door 112 is respectively provided at both ends of the furnace wall 111 in the length direction, and the second area is provided in the furnace wall 111. When the workpiece 03 enters the second area, the two sealing doors 112 are closed, and the heating unit 12 heats the workpiece 03, so that the heat can be better uniformly transferred in the second area, ensuring that the workpiece 03 is uniformly heated and diffused at a constant temperature.

[0056] The base unit 21 may include a fixed seat 211, a second movable seat 213, and a third driving unit. The furnace wall 111 may be detachably connected to the fixed seat 211. Part of the fixed seat 211 and part of the second movable seat 213 may be respectively arranged in the space surrounded by the furnace wall 111. One end of the second movable seat 213 close to the fifth area may be movably connected to the fixed seat 211. The second movable seat 213 may be drivably connected to the third driving unit, and the third driving unit may drive the second movable seat 213 to flip around one end of the second movable seat 213 close to the fifth area, and by changing the angle of the second movable seat 213, the height difference of the first roller 221 is changed, so that the bumping of the workpiece 03 is increased, and the gap between adjacent workpieces 03 in the same layer is increased. Part of the second movable seat 213 may be arranged in the second area, and another part of the second movable seat 213 may be arranged on the side of the second area away from the first area. Part of the first rollers 221 can be movably connected to the fixed seat 211 along the length direction of the fixed seat 211, and another part of the first rollers 221 can be movably connected to the second movable seat 213 along the length direction of the fixed seat 211. The center axis of each first roller 221 connected to the fixed seat 211 in the second area can be spaced within the seventh height range along the height direction of the second movable seat 213. The seventh height range can be the same as the first height range. After the workpiece 03 is heated in the furnace unit 11, the workpiece 03 needs to be cooled. In order to avoid a smaller gap between some workpieces 03 after heating, the height difference created by the second movable seat 213 during the transmission of multiple workpieces 03 causes bumps, thereby causing larger gaps between the multiple workpieces 03.

[0057] like Figure 2 , Figure 3 As shown, the second movable seat 213 may include a third state and a fourth state. The third state may include that the central axis of the first roller 221 of the second movable seat 213 close to the second area is lower than the central axis of the first roller 221 in the second area close to the first area by an eighth height range, so that the roller on the second movable seat 213 is lower than the roller of the fixed seat 211, thereby generating a shake, and at the same time, the downward manner of the second movable seat 213 can reduce the movement resistance of the workpiece 03. The fourth state may include that the projection of the sealing door 112 toward the base unit 21 is in the space between the second movable seat 213 and the fixed seat 211. When the workpiece 03 enters the second area, the sealing door 112 is closed, and the heating unit 12 heats the workpiece 03, so that the furnace unit 11 can form a closed space, which is more conducive to heating the workpiece 03 and improving the heating efficiency.

[0058] In this embodiment, if Figure 2As shown, the spacing of the central axis of each first roller 221 movably connected to the second movable seat 213 along the height direction of the second movable seat 213 can be within the ninth height range, and the ninth height range can be the same as the second setting range, so that the first rollers 221 on the second movable seat 213 are arranged in the same plane as much as possible, and when the workpiece 03 is on the second movable seat 213, the workpiece 03 is not bumped, so that the stacked multiple workpieces 03 are prevented from collapsing. The spacing of the central axis of each first roller 221 that can be connected to the fixed seat 211 in the fifth area along the height direction of the fixed seat 211 is within the tenth height range, and the tenth height can be the same as the first height, so that when the workpiece 03 enters the second movable seat 213, if there is still adhesion between adjacent workpieces 03 on the same layer, the second movable seat 213 can open the gap. After the workpiece 03 is heated, it is usually cooled. The larger gap can allow the outer peripheral side of each workpiece 03 to be immersed in the coolant, and the coolant exchanges heat with the workpiece 03 between each workpiece 03, so that the temperature change rate of each workpiece 03 is close to the same.

[0059] In this embodiment, if Figure 1 As shown, the heat treatment system may include the heat treatment device of any one of the above embodiments, and the heat treatment system may also include a plurality of workpieces 03 .

[0060] A plurality of workpieces 03 may be arranged on the first roller 221 in multiple rows, columns, or layers. The workpiece 03 close to the first roller 221 may abut against at least three first rollers 221. 0<B<0.2A, 0<C<0.05A. Wherein, A is the diameter of the first roller 221. B is the distance difference of the central axis of each first roller 221 in the first area along the height direction of the base unit 21. C is the distance difference of the central axis of each first roller 221 in the second area along the height direction of the base unit 21.

[0061] The central axis of each first roller 221 in the first area has a large difference in distance along the height direction of the base unit 21, so that when the workpiece 03 enters the second area, space for heating and expansion can be reserved between adjacent workpieces 03 in the same layer. The central axis of each first roller 221 in the second area has a small difference in distance along the height direction of the base unit 21, so that when the workpiece 03 is transferred on the first roller 221 in the second area, it can be relatively stable, preventing the stacked workpieces 03 from collapsing.

[0062] In this embodiment, if Figure 4 As shown, the heat treatment method can be applied to a heat treatment system. The heat treatment method can include steps S10 to S30. Steps S10 to S30 will be described in detail below.

[0063] Step S10, when multiple workpieces 03 need to be heat treated, the heating unit 12 can be triggered based on the heat treatment instruction to operate. The workpieces 03 can be located in the first area, and the distance between adjacent workpieces 03 in the same layer is within the first spacing range. The first spacing range is small, that is, there is as little gap as possible between adjacent workpieces 03 in the same layer, so that the spacing between adjacent workpieces 03 in the same layer during the transmission process can be better controlled.

[0064] Step S20, based on the temperature in the furnace unit 11 reaching the set temperature, the first roller 221 can move the workpiece 03 to the second area. The temperature of the first area is lower than the temperature of the second area. During the movement of the workpiece 03 in the first area, the distance between adjacent workpieces 03 in the same layer gradually expands from the first spacing range to the second spacing range, and the second spacing is much larger than the first spacing, so that before the workpiece 03 is heated, there is enough gap between adjacent workpieces 03 in the same layer, that is, space can be reserved between adjacent workpieces 03 in the same layer for heating and expansion.

[0065] Step S30: The heat treatment is completed based on the workpiece 03 reaching the set temperature, so as to ensure the heat treatment processing accuracy of the workpiece 03.

[0066] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A heat treatment device, characterized in that: The heat treatment device comprises: A furnace body assembly, the furnace body assembly comprising a furnace body unit and a heating part; the furnace body unit and the heating part are detachably connected; the heating part is arranged in a space surrounded by the furnace body unit; A transmission component, the transmission component comprises a base unit, a rolling unit, and a first driving unit; the furnace unit is detachably connected to the base unit; a portion of the base unit is arranged in a space surrounded by the furnace unit; the rolling unit comprises a plurality of first rollers; the first rollers have the same outer diameter; the plurality of first rollers are movably connected to the base unit along the length direction of the base unit; the central axes of the plurality of first rollers are arranged in parallel; the first driving unit is drivingly connected to the first rollers; The heat treatment device comprises a first area and a second area; the first area and the second area are connected and arranged in sequence along the length direction of the base unit; the second area is arranged in the furnace body unit; the top end of the first roller in the rotation direction points from the first area to the second area along the horizontal tangent direction; the distance difference between the central axis of each of the first rollers in the first area along the height direction of the base unit is within a first height range; The heat treatment device further includes a third area; the third area, the first area, and the second area are sequentially arranged along the length direction of the base unit; The rolling unit also includes a second roller bar; the outer diameter of the second roller bar gradually increases from the middle position of the second roller bar in the axial direction toward the two ends close to the axial direction of the second roller bar, and the minimum angle between the tangent of the outer peripheral surface of the second roller bar along the axial direction of the second roller bar and the central axis of the second roller bar is within a first angle range; a set number of the second roller bars are movably connected to the base unit in the third area; the second roller bar is drivingly connected to the first driving unit; the rotation direction of the second roller bar is the same as the rotation direction of the first roller bar; the distance difference of the central axis of the second roller bar along the height direction of the base unit is within a second height range.

2. A heat treatment device according to claim 1, characterized in that: A distance difference between central axes of the first rollers in the second area along a height direction of the base unit is within a third height range.

3. A heat treatment device according to claim 1, characterized in that: The heat treatment device further includes a fourth region; the first region, the fourth region, and the second region are sequentially arranged along the length direction of the base unit; The rolling unit further includes a third roller; the outer diameter of the third roller gradually decreases from the middle position of the third roller in the axial direction toward the two ends close to the axial direction of the third roller, and the minimum angle between the tangent line of the outer peripheral surface of the third roller along the axial direction of the third roller and the central axis of the third roller is within a second angle range; A set number of the third rollers are movably connected to the base unit in the fourth area; the third rollers are drivingly connected to the first driving unit; the rotation direction of the third rollers is the same as the rotation direction of the first rollers; the distance difference of the central axis of the third rollers along the height direction of the base unit is within the fourth height range.

4. A heat treatment device according to claim 1, characterized in that: The furnace unit comprises a furnace wall and two sealing doors; one of the sealing doors is movably connected to one end of the furnace wall in the length direction, and the other sealing door is movably connected to the other end of the furnace wall in the length direction; the second area is arranged in the furnace wall; The base unit comprises a fixed seat, a first movable seat, and a second driving part; the furnace wall is detachably connected to the fixed seat; part of the fixed seat and part of the first movable seat are respectively arranged in the space surrounded by the furnace wall; one end of the first movable seat close to the first area is movably connected to the fixed seat; The second driving part is drivingly connected to the first movable seat; part of the first movable seat is arranged in the second area, and another part of the first movable seat is arranged on the side of the second area close to the first area; part of the first rollers are movably connected to the fixed seat along the length direction of the fixed seat, and another part of the first rollers are movably connected to the first movable seat along the length direction of the fixed seat; the spacing of the central axes of the first rollers connected to the fixed seat in the first area along the height direction of the first movable seat is within the fifth height range; The first movable seat includes a first state and a second state; the first state includes that the central axis of the first roller rod of the first movable seat close to the second area is higher than the central axis of the first roller rod close to the first area in the second area by a sixth height range; the second state includes the projection of the sealing door toward the base unit in the space between the first movable seat and the fixed seat.

5. A heat treatment device according to claim 4, characterized in that: The spacing between the central axis axes of the first rollers movably connected to the first movable seat along the height direction of the first movable seat is within a seven-height range.

6. A heat treatment device according to claim 1, characterized in that: The heat treatment device further comprises a fifth region; the fifth region is arranged on a side of the second region away from the first region; The furnace unit comprises a furnace wall and two sealing doors; one of the sealing doors is movably connected to one end of the furnace wall in the length direction, and the other sealing door is movably connected to the other end of the furnace wall in the length direction; the second area is arranged in the furnace wall; The base unit includes a fixed seat, a second movable seat, and a third driving part; the furnace wall is detachably connected to the fixed seat; part of the fixed seat and part of the second movable seat are respectively arranged in the space surrounded by the furnace wall; one end of the second movable seat close to the fifth area is movably connected to the fixed seat; the second movable seat is drivingly connected to the third driving part; part of the second movable seat is arranged in the second area, and the other part of the second movable seat is arranged on the side of the second area away from the first area; part of the first roller rods are movably connected to the fixed seat along the length direction of the fixed seat, and the other part of the first roller rods are movably connected to the second movable seat along the length direction of the fixed seat; the spacing between the central axes of the first roller rods connected to the fixed seat in the second area along the height direction of the second movable seat is within the seventh height range; The second movable seat includes a third state and a fourth state; the third state includes that the central axis of the first roller rod of the second movable seat close to the second area is lower by eight height ranges than the central axis of the first roller rod close to the first area in the second area; the fourth state includes the projection of the sealing door toward the base unit in the space between the second movable seat and the fixed seat.

7. A heat treatment device according to claim 6, characterized in that: The spacing between the central axis axes of the first roller rods movably connected to the second movable seat along the height direction of the second movable seat is within the ninth height range; the spacing between the central axis axes of the first roller rods connected to the fixed seat in the fifth area along the height direction of the fixed seat is within the tenth height range.

8. A heat treatment system, characterized in that: The heat treatment system comprises a heat treatment device according to any one of claims 1 to 7, and the heat treatment system further comprises: A plurality of workpieces are arranged on the first roller in multiple rows, columns and layers; the workpiece close to the first roller abuts against at least three of the first rollers; 0<B<0.2A; 0<C<0.05A; wherein A is the diameter of the first roller; B is the distance difference of the central axis of each of the first rollers in the first area along the height direction of the base unit; C is the distance difference of the central axis of each of the first rollers in the second area along the height direction of the base unit.

9. A heat treatment method, characterized in that: The heat treatment method is applied to a heat treatment system as described in claim 8, and the heat treatment method comprises: Step S10, based on the triggering of the heat treatment instruction, the heating unit operates; wherein the workpiece is located in the first area, and the distance between adjacent workpieces in the same layer is within the first spacing range; Step S20, based on the temperature in the furnace unit reaching the set temperature, the first roller moves the workpiece to the second area; wherein the temperature of the first area is lower than the temperature of the second area, and during the movement of the workpiece in the first area, the distance between adjacent workpieces in the same layer gradually increases from the first spacing range to the second spacing range; Step S30, based on the workpiece reaching the set temperature, the heat treatment is completed.

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