Gas cylinder heat treatment device and treatment process

Abstract

The present application relates to the field of steel cylinder processing, and more particularly to a gas cylinder heat treatment device and its treatment process, comprising a heat treatment furnace with a hollow interior and an open side. The heat treatment furnace is provided with a sealing door on the side of the heat treatment furnace that is vertically raised and lowered relative to the open side. Horizontal inner slides are provided on both inner side walls of the heat treatment furnace adjacent to the open side. Two outer slides are hingedly connected to the open side of the heat treatment furnace. The inner slides are provided with chutes extending to the corresponding outer slides along their lengths. The slider slides in the chutes, and some drive rollers are moved out of the heat treatment furnace until the conveyor belt is tightened. Multiple steel cylinders are placed on the conveyor belt at intervals. The conveyor belt rotates in the opposite direction to send the steel cylinders into the heat treatment furnace. The slider moves back into the heat treatment furnace, and the conveyor belt relaxes. The steel cylinders between the two adjacent drive rollers sink under the action of gravity, and the conveyor belt at the corresponding position bends and deforms downward. Thereafter, the sealing door descends to seal the open side of the heat treatment furnace. The present application has the effect of improving the heat treatment quality of steel cylinders.

Description

Technical Field

[0001] The present application relates to the field of steel cylinder processing, and in particular to a gas cylinder heat treatment device and a treatment process thereof. Background Art

[0002] Steel cylinders are steel cylinders used to store oxygen, coal gas, liquefied petroleum gas, etc. Since the gases they store are usually compressed high-pressure gases, the cylinders must undergo heat treatment during the manufacturing process to improve their pressure resistance and strength.

[0003] Since steel cylinders are usually large in size, large heat treatment furnaces must be used to heat treat them. To improve efficiency, heat treatment furnaces usually heat treat multiple cylinders at the same time.

[0004] Although the temperature in the heat treatment furnace can meet the requirements of heat treatment of steel cylinders, the steel cylinders may be heated unevenly at different locations due to remaining stationary, which in turn causes different pressure resistance and strength at different locations on the steel cylinders, which is an obvious shortcoming. Summary of the Invention

[0005] In order to improve the problem of uneven heating during heat treatment of steel cylinders, the present application provides a gas cylinder heat treatment device and a treatment process thereof.

[0006] In the first aspect, the present application provides a gas cylinder heat treatment device, which adopts the following technical solution:

[0007] A gas cylinder heat treatment device comprises a heat treatment furnace with a hollow interior and an open side, wherein the heat treatment furnace is provided with a sealing door that is vertically raised and lowered relative to the side of the opening, and is characterized in that: the heat treatment furnace is provided with horizontal inner slide bars on both inner side walls adjacent to the open side, the open side of the heat treatment furnace is hinged with two outer slide bars, one inner slide bar corresponds to one outer slide bar and is arranged in a collinear manner, the inner slide bars are provided with a slide groove extending to the corresponding outer slide bar along their length direction; a plurality of transmission rollers are arranged in the heat treatment furnace along the length direction of the inner slide bar The transmission roller is perpendicular to the inner slide bar, and a conveyor belt is commonly sleeved on multiple transmission rollers. Both ends of each transmission roller are rotatably sleeved with sliders located in the slide groove. The slider farthest from the opening side of the heat treatment furnace is fixedly connected to the inner slide bar, and the remaining sliders are all slidably matched with the slide groove. A tension spring is hung between two adjacent sliders in the same slide groove; a pulling roller is provided on each of the two outer slide bars, and the pulling roller is used to pull part of the transmission rollers to move outside the heat treatment furnace to make the conveyor belt tight. The heat treatment furnace is also provided with a driving component for driving the conveyor belt to rotate forward and reverse.

[0008] Using this technical solution, the pull rollers, in conjunction with tension springs, pull the sliders within the chute. Some of the drive rollers are moved out of the heat treatment furnace until the conveyor belt is tightened. Workers then place multiple cylinders on the conveyor belt at intervals, and the drive assembly drives the conveyor belt in the opposite direction, allowing the conveyor belt to transport the cylinders into the heat treatment furnace. The pull rollers then release their tension on the sliders, and the sliders, acting under the action of the tension springs, move back into the heat treatment furnace. The conveyor belt transitions from tension to relaxation. Gravity causes the cylinders between adjacent drive rollers to sink, causing the conveyor belt to bend downward at the corresponding position. Workers then rotate the outer slider and lower the sealing door to seal the open side of the heat treatment furnace.

[0009] During the heat treatment process, the drive assembly drives the conveyor belt to rotate in the forward direction, thereby driving the conveyor belt to rotate each cylinder at its position, so that the entire cylinder can be heated evenly, thereby improving the heat treatment quality of the cylinder.

[0010] After the heat treatment of the cylinder is completed, the worker opens the sealing door and rotates the outer slide again to be collinear with the inner slide. After repeating the above process of moving the transmission roller out of the heat treatment furnace, the conveyor belt sends the cylinder out of the heat treatment furnace and is removed by the worker.

[0011] Optionally, the pulling roller includes an electric winch arranged at the other end of the outer slide relative to the inner slide, and a hanging ring is provided on the slider closest to the opening side of the heat treatment furnace. The electric winch is electrically connected to the control system, and the hook at the end of the rope on the electric winch is used to hang on the hanging ring.

[0012] By adopting the above technical solution, workers start the electric winch through the control system, and the electric winch reels or unreels its own rope, which, in conjunction with the tension spring, can drive the slider to slide in the slide groove.

[0013] Optionally, a plurality of slide rods are provided at the end of the outer slide bar, the electric winch sliding sleeve is provided on the plurality of slide rods, and a pressure sensor electrically connected to the control system is supported between the electric winch and the end of the outer slide bar.

[0014] By adopting this technical solution, the rope may be randomly wound around the electric capstan, so each time the conveyor belt is tensioned, there will be a small difference in the degree of rope retraction and unwinding. Because the electric capstan applies pressure to the pressure sensor, the amount of pressure determines the stopping position of the drive roller, ensuring that the conveyor belt maintains the appropriate tension.

[0015] Optionally, the drive assembly includes four drive parts, and each end of the transmission roller farthest and closest to the opening side of the heat treatment furnace corresponds to a drive part. The drive part includes a bracket arranged on the top of the heat treatment furnace, a lifting cylinder arranged on the bracket, and a drive motor arranged on the piston rod of the lifting cylinder. The output shaft of the drive motor is coaxially provided with a transmission rod, and the transmission rod slides and rotates to pass into the heat treatment furnace. A driving helical gear is fixedly sleeved on the transmission rod, and both ends of the transmission roller farthest and closest to the opening side of the heat treatment furnace are fixedly sleeved with a driven helical gear engaged with the corresponding driving helical gear. The lifting cylinder and the drive motor are both electrically connected to the control system.

[0016] By adopting this technical solution, the control system activates the drive motor. The output shaft of the drive motor rotates the driving helical gear via the transmission rod, which in turn drives the corresponding transmission roller, thus enabling the conveyor belt to transport the cylinders. When the conveyor belt transports the cylinders in and out of the heat treatment furnace, the drive unit farther from the furnace opening operates. When the conveyor belt drives the cylinders to rotate, the drive unit closer to the furnace opening operates.

[0017] Optionally, a plurality of ridges are circumferentially provided on the outer side wall of the conveyor belt, wherein the ridges are parallel to the transmission rollers, and the distance between two adjacent ridges is exactly equal to the distance between two adjacent transmission rollers when the conveyor belt is tightened.

[0018] By adopting the above technical solution, the convex strips limit the position of the cylinders, reducing the possibility that the cylinders will roll randomly on the conveyor belt when the conveyor belt is in a taut state, resulting in multiple cylinders being crowded between any two adjacent transmission rollers when the tensioning belt is relaxed.

[0019] Optionally, a locking cylinder electrically connected to the control system is provided on the outer wall of the heat treatment furnace, and the piston rod of the locking cylinder passes through the side wall of the heat treatment furnace and the inner slide bar to the slide groove, and the slider at the end of the transmission roller closest to the opening side of the heat treatment furnace is provided with a socket hole for plugging and cooperating with the locking cylinder piston rod.

[0020] By adopting the above technical solution, when the transmission roller moves back into the heat treatment area, the piston rod of the locking cylinder extends, so that the piston rod is plugged into and matched with the socket hole on the corresponding slider, ensuring that the driven helical gear at the end of the corresponding transmission roller can be stably engaged with the driving helical gear.

[0021] Optionally, the drive motor is a water-cooled motor.

[0022] By adopting the above technical solution, the water-cooled motor has its own water circulation, so that it can work normally without being affected by the high temperature around the heat treatment furnace, ensuring the normal rotation of the transmission roller.

[0023] In a second aspect, the present application provides a treatment process for a gas cylinder heat treatment device, which adopts the following technical solution:

[0024] A treatment process for a gas cylinder heat treatment device comprises the following steps:

[0025] S1, the pulling roller cooperates with the tension spring to pull each slider to slide in the chute, and some transmission rollers move out of the heat treatment furnace until the conveyor belt is tensioned;

[0026] S2. A worker places multiple steel cylinders on a conveyor belt at intervals. The drive assembly drives the conveyor belt to rotate in the opposite direction, thereby conveying the steel cylinders into the heat treatment furnace. The pull roller releases the tension on the sliders, and each slider moves back into the heat treatment furnace under the action of the tension spring. The conveyor belt relaxes, and the steel cylinders between two adjacent drive rollers sink under the action of gravity, causing the conveyor belt at the corresponding position to bend downward. The outer slide bar is rotated, and then the sealing door descends to seal the open side of the heat treatment furnace.

[0027] S3, the driving assembly drives the conveyor belt to rotate in the forward direction, and the conveyor belt drives the cylinder to rotate at its position;

[0028] S4. After the heat treatment of the steel cylinder is completed, the sealing door is lifted upward, and the outer slide rotates to be collinear with the inner slide, and the above step S1 is repeated. Then, the drive system drives the conveyor belt to rotate forward, and the worker removes the steel cylinder from the conveyor belt.

[0029] Using this technical solution, the pull rollers, in conjunction with tension springs, pull the sliders within the chute. Some of the drive rollers are moved out of the heat treatment furnace until the conveyor belt is tightened. Workers then place multiple cylinders on the conveyor belt at intervals, and the drive assembly drives the conveyor belt in the opposite direction, allowing the conveyor belt to transport the cylinders into the heat treatment furnace. The pull rollers then release their tension on the sliders, and the sliders, acting under the action of the tension springs, move back into the heat treatment furnace. The conveyor belt transitions from tension to relaxation. Gravity causes the cylinders between adjacent drive rollers to sink, causing the conveyor belt to bend downward at the corresponding position. Workers then rotate the outer slider and lower the sealing door to seal the open side of the heat treatment furnace.

[0030] During the heat treatment process, the drive assembly drives the conveyor belt to rotate in the forward direction, thereby driving the conveyor belt to rotate each cylinder at its position, so that the entire cylinder can be heated evenly, thereby improving the heat treatment quality of the cylinder.

[0031] After the heat treatment of the cylinder is completed, the worker opens the sealing door and rotates the outer slide again to be collinear with the inner slide. After repeating the above process of moving the transmission roller out of the heat treatment furnace, the conveyor belt sends the cylinder out of the heat treatment furnace and is removed by the worker.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. Before heat treatment, the conveyor belt is kept taut to transport multiple cylinders into the heat treatment furnace. Afterwards, the conveyor belt is relaxed, and each cylinder hangs down between two adjacent transmission rollers. The conveyor belt then drives the cylinder to rotate at its position. After heat treatment, the conveyor belt is re-taut and transports the cylinder out of the heat treatment furnace. This ensures that the cylinders are evenly heated in the heat treatment furnace, thereby improving the heat treatment quality.

[0034] 2. Because the rope may be wound around the electric capstan in a disorderly manner, there will be a small difference in the degree of rope retraction and unretraction each time the conveyor belt is tensioned. Since the electric capstan applies pressure to the pressure sensor, the stopping position of the drive roller is determined by the pressure, ensuring that the conveyor belt maintains the appropriate tension.

[0035] 3. The convex strips limit the position of the cylinders, reducing the possibility that the cylinders will roll freely on the conveyor belt when the conveyor belt is in a taut state, resulting in multiple cylinders being crowded between any two adjacent transmission rollers when the tensioning belt is relaxed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural diagram of an embodiment of the present application.

[0037] Figure 2 It is an exploded view of the positional relationship between the inner slide bar, the slider and the transmission roller in the embodiment of the present application.

[0038] Figure 3 It is an exploded diagram between the inner and outer slide bars, the pressure sensor and the electric winch in the embodiment of the present application.

[0039] Figure 4 It is a cross-sectional view showing the positional relationship among the locking cylinder, the slider and the transmission roller in the embodiment of the present application.

[0040] Explanation of the accompanying reference numerals: 1. Heat treatment furnace; 2. Sealing door; 3. Inner slide bar; 4. Outer slide bar; 5. Slide groove; 6. Drive roller; 7. Conveyor belt; 8. Slider; 81. Plug hole; 9. Tension spring; 10. Pull roller; 101. Electric winch; 102. Hanging ring; 11. Slide bar; 12. Pressure sensor; 131. Bracket; 132. Lifting cylinder; 133. Driving motor; 134. Transmission rod; 135. Driving bevel gear; 136. Driven bevel gear; 14. Raised strip; 15. Locking cylinder. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-4 This application is described in further detail.

[0042] Example 1

[0043] The embodiment of the present application discloses a gas cylinder heat treatment device.

[0044] Reference Figure 1 The gas cylinder heat treatment device includes a heat treatment furnace 1 placed on the ground. The heat treatment furnace 1 is hollow inside and open on one side. A sealing door 2 is provided on the open side of the heat treatment furnace 1 through a lifting device (not shown in the figure) that slides vertically. The lifting device directly adopts the existing technology.

[0045] Reference Figure 1 、 Figure 2 and Figure 3 The two vertical inner walls of the heat treatment furnace 1 adjacent to its opening side are bolted with inner slide bars 3, and the opening side of the heat treatment furnace 1 is hinged with two outer slide bars 4, one inner slide bar 3 corresponds to one outer slide bar 4 and both remain horizontal.

[0046] Before workers load and unload steel cylinders, they will first rotate the outer slide 4 to be collinear with the inner slide 3. At this time, the end of the inner slide 3 is close to the outer slide 4, and a slide groove 5 extending to the outer slide 4 is opened on the inner slide 3 along its length.

[0047] Reference Figure 1 、 Figure 2 and Figure 3 A plurality of transmission rollers 6 are arranged along the length direction of the inner slide bar 3 in the heat treatment furnace 1. The transmission rollers 6 are located between two inner slide bars 3 and perpendicular to the inner slide bar 3. A conveyor belt 7 is commonly sleeved on the plurality of transmission rollers 6.

[0048] Both ends of each transmission roller 6 are rotatably sleeved with sliders 8 located in the slide groove 5. The slider 8 farthest from the opening side of the heat treatment furnace 1 is bolted to the inner slide bar 3, and the remaining sliders 8 are all slidably matched with the slide groove 5. A tension spring 9 is hung between two adjacent sliders 8 in the same slide groove 5.

[0049] Reference Figure 1 , both outer slides 4 are provided with pulling rollers 10, which are used to pull the component transmission roller 6 to move outside the heat treatment furnace 1 until the conveyor belt 7 is tightened. The heat treatment furnace 1 is also provided with a driving motor 133 for driving the conveyor belt 7 forward and reverse.

[0050] Reference Figure 1 、 Figure 2 and Figure 3 The outer slider 4 is welded to the other end of the inner slider 3 with multiple slide bars 11, all parallel to the outer slider 4. The pull roller 10 includes an electric winch 101 slidably mounted on the slide bars 11, and a pressure sensor 12 supported between the electric winch 101 and the end of the outer slider 4. The pressure sensor 12 and the electric winch 101 are both electrically connected to the control system.

[0051] Reference Figure 1 、 Figure 2 and Figure 3A hanging ring 102 is threadedly connected to the slider 8 closest to the opening side of the heat treatment furnace 1, and the hook at the end of the rope on the electric winch 101 is used to hang on the hanging ring 102.

[0052] When preparing to load materials, the worker first rotates the outer slide 4 to be in line with the inner slide 3, and then hangs the hook on the hanging ring 102. The control system then activates the electric winch 101, and the rope of the electric winch 101 is wound. At the same time, the tension spring 9 cooperates with the slider 8, except for the slider 8 bolted to the inner slide 3, to slide out of the heat treatment furnace 1.

[0053] Reference Figure 1 、 Figure 2 and Figure 3 , part of the slider 8 slides from the inner slide 3 to the outer slide 4, and part of the drive roller 6 moves out of the heat treatment furnace 1 until the conveyor belt 7 is tensioned.

[0054] At this time, workers can place cylinders at intervals on the conveyor belt 7, and at the same time, the driving component drives the conveyor belt 7 to reverse, so that they can continue to place cylinders while the conveyor belt 7 sends the cylinders into the heat treatment furnace 1, ensuring that there is a cylinder on the conveyor belt between two adjacent drive rollers 6, and then the conveyor belt 7 stops.

[0055] Reference Figure 1 、 Figure 2 and Figure 3 The outer wall of the conveyor belt 7 is integrally formed with a plurality of ridges 14 in the circumferential direction. The ridges 14 are parallel to the transmission rollers 6. The distance between two adjacent ridges 14 is exactly equal to the distance between two adjacent transmission rollers 6 when the conveyor belt 7 is taut.

[0056] The ridges 14 serve to limit the position of the cylinders, thereby reducing the possibility that the cylinders will roll on the conveyor belt 7 while the conveyor belt 7 is conveying the cylinders out of or into the heat treatment furnace 1, causing multiple cylinders to be crowded between any two adjacent rotating rollers at the same time.

[0057] Reference Figure 1 、 Figure 2 and Figure 3 The electric winch 101 unwinds the twisted rope, and the tension spring 9 pulls each slider 8 back into the heat treatment furnace 1 through deformation force, that is, the transmission roller 6 located outside the hot furnace moves back into the heat treatment furnace 1.

[0058] During this process, the conveyor belt 7 changes from being tensioned to being relaxed, so that the cylinder between two adjacent transmission rollers 6 sinks under the action of gravity, and the conveyor belt 7 at the corresponding position bends downward.

[0059] Reference Figure 1 、 Figure 2 and Figure 3When all the transmission rollers 6 are moved back into the heat treatment furnace 1 , the worker removes the hook from the hanging ring 102 with the help of a tool, and then the sealing door 2 descends to close the open side of the heat treatment furnace 1 .

[0060] Thereafter, the driving assembly drives the conveyor belt 7 to rotate, and the conveyor belt 7 drives each cylinder to rotate at its position through friction, so that the cylinder can be heated evenly, thereby improving its impact toughness, resistance to temper brittleness and high-temperature endurance strength.

[0061] Reference Figure 1 、 Figure 2 and Figure 3 After the heat treatment of the steel cylinder is completed, the above-mentioned steps of moving the transmission roller 6 out of the heat treatment furnace 1 are repeated, so that the conveyor belt 7 is tensioned again, and the control system drives the conveyor belt 7 to rotate forward, thereby sending the steel cylinder out of the heat treatment furnace 1 and being removed by the worker.

[0062] Reference Figure 1 、 Figure 2 and Figure 3 The drive assembly includes four drive units, one for each end of the drive roller 6 closest to and farthest from the opening of the heat treatment furnace 1. When the conveyor belt 7 transports steel cylinders in and out of the heat treatment furnace 1, the drive unit farther from the opening of the heat treatment furnace 1 operates. When the conveyor belt 7 drives the steel cylinders to rotate, the drive unit closer to the opening of the heat treatment furnace 1 operates.

[0063] Reference Figure 1 、 Figure 2 and Figure 3 The driving part includes a bracket 131 bolted to the top of the heat treatment furnace 1, a lifting cylinder 132 bolted to the bracket 131, and a driving motor 133 bolted to the piston rod of the lifting cylinder 132. The output shaft of the driving motor 133 is coaxially welded with a transmission rod 134, and the transmission rod 134 is slidably and rotatably penetrated into the heat treatment furnace 1.

[0064] Reference Figure 1 、 Figure 2 and Figure 3 A driving bevel gear 135 is fixedly sleeved on the transmission rod 134. Both ends of the transmission roller 6 closest to and farthest from the opening side of the heat treatment furnace 1 are fixedly sleeved with a driven bevel gear 136. The driven bevel gear 136 is engaged with the driving bevel gear 135. The lifting cylinder 132 and the drive motor 133 are both electrically connected to the control system.

[0065] Reference Figure 1 、 Figure 2 and Figure 3 The control system starts the drive motor 133, and the output shaft of the drive motor 133 drives the active bevel gear 135 to rotate through the transmission rod 134, and the active bevel gear 135 drives the driven bevel gear 136 to rotate, thereby driving the transmission roller 6 to rotate, and then driving the conveyor belt 7 to rotate.

[0066] Reference Figure 1 、 Figure 2 and Figure 3 When the transmission roller 6 moves out of the heat treatment furnace 1, the piston rod of the lifting cylinder 132 corresponding to the driving part closer to the opening side of the heat treatment furnace 1 will retract upward, thereby causing the driving bevel gear 135 to disengage from the driven bevel gear 136.

[0067] After the transmission roller 6 moves back to the heat treatment furnace 1 , the piston rod of the lifting cylinder 132 of the driving part closer to the opening side of the heat treatment furnace 1 will extend downward again, so that the driving bevel gear 135 is meshed with the driven bevel gear 136 again.

[0068] Reference Figure 1 、 Figure 2 and Figure 4 A locking cylinder 15 electrically connected to the control system is bolted to the outer wall of the heat treatment furnace 1. The piston rod of the locking cylinder 15 passes through the side wall of the heat treatment furnace 1 and the inner slide bar 3 to the slide groove 5. The slider 8 at the end of the transmission roller 6 closest to the opening side of the heat treatment furnace 1 is provided with a plug hole 81 for plugging with the piston rod of the locking cylinder 15.

[0069] By plugging the piston rod of the locking cylinder 15 into the plug hole 81 , the position of the corresponding slider 8 remains stable, ensuring that the driving bevel gear 135 can stably drive the driven bevel gear 136 to rotate.

[0070] Reference Figure 1 、 Figure 2 and Figure 4 Since the temperature around the heat treatment furnace 1 is high when it is working, the drive motor 133 adopts a forward and reverse water-cooled motor in the existing technology. The drive motor 133 has its own water cooling system, thereby ensuring that the drive motor 133 can operate normally without being affected by the high temperature around the heat treatment furnace 1, thereby ensuring the normal rotation of the transmission roller 6.

[0071] The implementation principle of Example 1 is as follows: the worker lifts the sealing door 2 through the lifting device, and then rotates the outer slide 4 to be collinear with the corresponding inner slide 3, and then uses a tool to hang the hook at the end of the rope on the electric winch 101 on the hanging ring 102, and then starts the electric winch 101. The electric winch 101 reels the rope and cooperates with the tension spring 9 to pull each slider 8 to slide in the slide 5. Part of the transmission roller 6 moves out of the heat treatment furnace 1 until the conveyor belt 7 is tensioned. The worker places multiple steel cylinders on the conveyor belt 7 at intervals, and the four drive parts simultaneously drive the conveyor belt 7 to rotate in the opposite direction, so that the conveyor belt 7 sends the steel cylinders into the heat treatment furnace 1 and the drive part stops working. Afterwards, the electric winch 101 unwinds the twisted rope, and each slider 8 moves back into the heat treatment furnace 1 under the action of the tension spring 9, the conveyor belt 7 relaxes, and the cylinder between the two adjacent drive rollers 6 sinks under the action of gravity, and the conveyor belt 7 at the corresponding position bends downward and deforms; the worker rotates the outer slide 4 to make its end rotate out of the heat treatment furnace 1, and then the sealing door 2 descends to close the opening side of the heat treatment furnace 1, and the control system drives the piston rod of the locking cylinder 15 to extend, and then engages with the socket hole 81 on the corresponding slider 8, and then the four drive parts simultaneously drive the conveyor belt 7 to rotate forward, and the conveyor belt 7 drives the cylinder to rotate at its position. After the heat treatment of the cylinder is completed, the process of some drive rollers 6 moving out of the heat treatment furnace 1 and the conveyor belt 7 being tensioned is repeated, and then the two drive parts farther away from the opening side of the heat treatment furnace 1 drive the conveyor belt 7 to rotate forward, and the worker removes the cylinder from the conveyor belt 7.

[0072] Example 2

[0073] Example 2 of the present application discloses a treatment process of a gas cylinder heat treatment device, comprising the following steps:

[0074] S1. A worker lifts the sealing door 2 using a lifting device, then rotates the outer slide 4 until it is collinear with the corresponding inner slide 3. Using a tool, the worker hooks the end of the rope on the electric winch 101 onto the hanging ring 102. The electric winch 101 is then started. The electric winch 101 winds up the rope and, in conjunction with the tension spring 9, pulls each slider 8 to slide within the chute 5. Part of the transmission roller 6 moves out of the heat treatment furnace 1 until the conveyor belt 7 is tensioned.

[0075] S2. Workers place multiple cylinders on conveyor belt 7 at intervals. Four drive units simultaneously drive conveyor belt 7 in the opposite direction, delivering the cylinders into heat treatment furnace 1. The drive units then stop. Electric winch 101 then unwinds the twisted rope. Each slider 8, driven by tension spring 9, moves back into heat treatment furnace 1. Conveyor belt 7 relaxes, and the cylinders between adjacent drive rollers 6 sink under gravity, causing the corresponding position of conveyor belt 7 to bend downward. Workers rotate outer slider 4 to move its end out of heat treatment furnace 1. Then, sealing door 2 descends, sealing the open side of heat treatment furnace 1.

[0076] S3. The control system drives the piston rod of the locking cylinder 15 to extend, which then engages with the corresponding plug hole 81 on the slider 8. Then, the four drive units simultaneously drive the conveyor belt 7 to rotate in the forward direction, and the conveyor belt 7 drives the cylinder to rotate at its position;

[0077] S4. After the heat treatment of the steel cylinder is completed, the above step S1 is repeated. Then, the two driving parts farther from the opening side of the heat treatment furnace 1 drive the conveyor belt 7 to rotate forward, and the worker removes the steel cylinder from the conveyor belt 7.

[0078] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A gas cylinder heat treatment device, comprising a heat treatment furnace (1) having a hollow interior and an open side, wherein the heat treatment furnace (1) is provided with a sealing door (2) that is vertically raised and lowered relative to the open side thereof, and characterized in that: The heat treatment furnace (1) is provided with horizontal inner slide bars (3) on both inner side walls adjacent to the opening side thereof, and the opening side of the heat treatment furnace (1) is hinged with two outer slide bars (4), one inner slide bar (3) corresponds to one outer slide bar (4) and is collinearly arranged, and the inner slide bar (3) is provided with a slide groove (5) extending to the corresponding outer slide bar (4) along its length direction; A plurality of transmission rollers (6) are arranged along the length direction of the inner slide bar (3) in the heat treatment furnace (1), the transmission rollers (6) are perpendicular to the inner slide bar (3), and a conveyor belt (7) is commonly sleeved on the plurality of transmission rollers (6). Both ends of each transmission roller (6) are rotatably sleeved with sliders (8) located in the slide groove (5), the slider (8) farthest from the opening side of the heat treatment furnace (1) is fixedly connected to the inner slide bar (3), and the remaining sliders (8) are all slidably matched with the slide groove (5), and tension springs (9) are hung between two adjacent sliders (8) in the same slide groove (5); Both outer slides (4) are provided with a pulling roller (10), and the pulling roller (10) is used to pull part of the transmission roller (6) to move outside the heat treatment furnace (1) so that the conveyor belt (7) is tightened. The heat treatment furnace (1) is also provided with a driving component for driving the conveyor belt (7) to rotate forward and reverse.

2. The gas cylinder heat treatment device according to claim 1, characterized in that: The pulling roller member (10) includes an electric winch (101) arranged at the other end of the outer slide (4) relative to the inner slide (3), and a hanging ring (102) is provided on the slider (8) closest to the opening side of the heat treatment furnace (1). The electric winch (101) is electrically connected to the control system, and the hook at the end of the rope on the electric winch (101) is used to hang on the hanging ring (102).

3. The gas cylinder heat treatment device according to claim 2, characterized in that: A plurality of slide bars (11) are provided at the end of the outer slide bar (4), the electric winch (101) is slidably sleeved on the plurality of slide bars (11), and a pressure sensor (12) electrically connected to a control system is supported between the electric winch (101) and the end of the outer slide bar (4).

4. The gas cylinder heat treatment device according to claim 1, characterized in that: The drive assembly includes four drive parts, and each of the two ends of the transmission roller (6) farthest from and closest to the opening side of the heat treatment furnace (1) corresponds to a drive part. The drive part includes a bracket (131) arranged on the top of the heat treatment furnace (1), a lifting cylinder (132) arranged on the bracket (131), and a drive motor (133) arranged on the piston rod of the lifting cylinder (132). The output shaft of the drive motor (133) is coaxially provided with a transmission rod (134). The transmission rod (134) is slidably and rotatably inserted into the heat treatment furnace (1). A driving bevel gear (135) is fixedly sleeved on the transmission rod (134). Both ends of the transmission roller (6) farthest from and closest to the opening side of the heat treatment furnace (1) are fixedly sleeved with a driven bevel gear (136) meshed with the corresponding driving bevel gear (135). The lifting cylinder (132) and the drive motor (133) are both electrically connected to a control system.

5. The gas cylinder heat treatment device according to claim 1, characterized in that: A plurality of ridges (14) are circumferentially arranged on the outer side wall of the conveyor belt (7), wherein the ridges (14) are parallel to the transmission roller (6), and the distance between two adjacent ridges (14) is exactly equal to the distance between two adjacent transmission rollers (6) when the conveyor belt (7) is tightened.

6. The gas cylinder heat treatment device according to claim 1, characterized in that: A locking cylinder (15) electrically connected to a control system is provided on the outer wall of the heat treatment furnace (1); a piston rod of the locking cylinder (15) passes through the side wall of the heat treatment furnace (1) and the inner slide bar (3) to the slide groove (5); a plug hole (81) for plugging and cooperating with the piston rod of the locking cylinder (15) is provided on the slider (8) at the end of the transmission roller (6) closest to the opening side of the heat treatment furnace (1).

7. The gas cylinder heat treatment device according to claim 4, characterized in that: The driving motor (133) is a water-cooled motor.

8. A treatment process for a gas cylinder heat treatment device according to any one of claims 1 to 7, characterized in that: The steps include: S1, the pulling roller (10) cooperates with the tension spring (9) to pull each slider (8) to slide in the slide groove (5), and part of the transmission roller (6) moves out of the heat treatment furnace (1) until the conveyor belt (7) is tensioned; S2. A worker places a plurality of steel cylinders on a conveyor belt (7) at intervals. The drive assembly drives the conveyor belt (7) to rotate in the opposite direction, so that the conveyor belt (7) sends the steel cylinders into the heat treatment furnace (1). The pulling roller (10) releases the pulling force on the slider (8). Each slider (8) moves back into the heat treatment furnace (1) under the action of the tension spring (9). The conveyor belt (7) relaxes. The steel cylinders between two adjacent transmission rollers (6) sink under the action of gravity, and the conveyor belt (7) at the corresponding position bends and deforms downward. The outer slide bar (4) is rotated, and then the sealing door (2) descends to close the open side of the heat treatment furnace (1). S3, the driving assembly drives the conveyor belt (7) to rotate in a forward direction, and the conveyor belt (7) drives the cylinder to rotate at its position; S4. After the heat treatment of the steel cylinder is completed, the sealing door (2) is lifted upward, and the outer slide (4) is rotated to be collinear with the inner slide (3), and the above step S1 is repeated. Then, the drive system drives the conveyor belt (7) to rotate forward, and the worker removes the steel cylinder from the conveyor belt (7).

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