Armored heating wire magnesium powder filling equipment

Abstract

The present application relates to an armored heating wire magnesium powder filling device, belonging to the technical field of armored heating wire production equipment, which includes a mounting frame, a lifting frame and a driving mechanism for driving the lifting frame to move up and down, a magnesium powder silo, an inner conduit, a heating wire, a terminal at the lower end of the heating wire, a head at the bottom end of the terminal, an outer conduit inserted into the outer conduit, an interlayer space between the inner and outer conduits, the terminal clamped in the interlayer space and the bottom end of the terminal exposed to the outer conduit, a discharge hole at the bottom of the magnesium powder silo, the discharge hole being connected to the interlayer space, a stainless steel heating tube and a base fixing plate for supporting the stainless steel heating tube are provided on the mounting frame, a avoidance hole for the head to pass through is provided on the base fixing plate, and the avoidance hole is coaxially arranged with the stainless steel heating tube. The present application has the effect of improving the efficiency of magnesium powder filling.

Description

Technical Field

[0001] The present application relates to the field of armored heating wire production equipment, and in particular to an armored heating wire magnesium powder filling device. Background Art

[0002] Armored heating wire is a common heating wire structure, consisting of a hollow cylindrical stainless steel heating tube, a heating wire located in the center of the stainless steel heating tube, and magnesium powder filled between the stainless steel heating tube and the heating wire. The heating wire is a common resistance wire that generates heat when powered.

[0003] When producing the armored heating wire, the heating wire and magnesium powder need to be loaded into the heating tube. However, the stainless steel heating tube is often thin and long, making manual loading inconvenient. Summary of the Invention

[0004] In order to improve the problem of inconvenience in filling magnesium powder into a stainless steel heating tube, the present application provides a magnesium powder filling device for an armored heating wire.

[0005] This application provides an armored heating wire magnesium powder filling device, which adopts the following technical solutions:

[0006] A armored heating wire magnesium powder filling equipment comprises a mounting frame, the mounting frame is provided with a lifting frame and a driving mechanism for driving the lifting frame to move up and down, the lifting frame is provided with a magnesium powder silo, the lifting frame is provided with an inner guide tube, a heating wire is provided in the inner guide tube, the lower end of the heating wire is provided with a terminal, the bottom end of the terminal is provided with a head, the lower end of the magnesium powder silo is provided with an outer guide tube, the inner guide tube is inserted into the outer guide tube, an interlayer space is provided between the inner guide tube and the outer guide tube, the terminal is clamped in the interlayer space and the bottom end of the terminal is exposed to the outer guide tube, the bottom of the magnesium powder silo is provided with a discharge hole, the discharge hole is connected with the interlayer space, the mounting frame is provided with a stainless steel heating pipe and a base fixing plate for supporting the stainless steel heating pipe, the base fixing plate is provided with an avoidance hole for the head to pass through, and the avoidance hole is coaxially arranged with the stainless steel heating pipe.

[0007] By adopting the above technical solution, when filling the stainless steel heating tube with magnesium powder, magnesium powder is poured into the magnesium powder silo, and the magnesium powder is discharged into the interlayer space through the discharge hole under the action of gravity. Subsequently, the driving mechanism drives the lifting frame to move downward, and the lifting frame drives the magnesium powder silo to move downward, and then synchronously drives the inner and outer tubes to move downward. Since the terminal is stuck in the interlayer space, the terminal moves downward with the inner and outer tubes, and at the same time, the terminal synchronously drives the heating wire downward. Subsequently, the outer tube is gradually inserted into the stainless steel heating tube below until the head passes through the avoidance hole. After using external force to clamp the lower end of the head, the driving mechanism is used to drive the lifting frame upward. The lifting frame drives the magnesium powder silo, the inner and outer tubes to rise together, while the terminal and the heating wire connected to the terminal remain in the stainless steel heating tube due to the clamping of the head. During the rising process, after the lower end of the interlayer space is separated from the head, the magnesium powder in the interlayer space begins to fall downward and finally falls into the stainless steel heating tube, thereby achieving the purpose of filling the stainless steel heating tube with magnesium powder from bottom to top. Compared with manually filling the stainless steel heating tube with magnesium powder, the filling efficiency of the magnesium powder is improved.

[0008] Optionally, a plurality of inner conduits are evenly arranged along the length direction of the lifting frame, and the number of the heating wires, outer conduits and stainless steel heating tubes corresponds to the number of the inner conduits.

[0009] By adopting the above technical solution, multiple stainless steel heating tubes can be filled with magnesium powder at the same time, further improving the filling efficiency of magnesium powder.

[0010] Optionally, the mounting frame is provided with an electromagnetic vibrator for vibrating the stainless steel heating tube.

[0011] By adopting the above technical solution, during the magnesium powder filling process, the electromagnetic vibrator causes the stainless steel heating tube to vibrate, thereby reducing the adhesion of magnesium powder to the inner tube wall of the stainless steel heating tube during the falling process of the magnesium powder, which in turn causes poor magnesium powder filling.

[0012] Optionally, the output end of the electromagnetic vibrator is provided with a vibration plate mounting seat, and the vibration plate mounting seat is provided with a first transfer plate and a second transfer plate, the first transfer plate and the second transfer plate are stacked, the first transfer plate is provided with a first clamping groove, the second transfer plate is provided with a second clamping groove, the stainless steel heating tube is provided between the first clamping groove and the second clamping groove, the first transfer plate and the second transfer plate are provided with at least two guide adjustment holes, the guide adjustment holes are arranged along the length direction of the vibration plate mounting seat, the vibration plate mounting seat is provided with a locking bolt, and the locking bolt passes through the guide adjustment holes on the first transfer plate and the second transfer plate at the same time.

[0013] By adopting the above technical solution, after the stainless steel heating tube is mounted on the mounting bracket, the locking bolt can be loosened to adjust the first and second transfer plates along the length of the vibration plate mounting bracket, so that the first and second clamping grooves are offset from each other and the stainless steel heating tube is clamped between the groove walls of the first and second clamping grooves, thereby improving the adaptability of the electromagnetic vibrator to stainless steel heating tubes of different specifications. When the electromagnetic vibrator is activated, the vibration plate mounting bracket vibrates, driving the first and second transfer plates to vibrate. The stainless steel heating tube is clamped by the first and second transfer plates, which facilitates the transmission of vibration from the first and second transfer plates to the stainless steel heating tube, thereby ensuring smooth filling of magnesium powder.

[0014] Optionally, a fixed seat is provided on the mounting frame, and the driving mechanism includes a first motor provided on the fixed seat, a transmission shaft is rotatably provided on the fixed seat, the transmission shaft is arranged along the length direction of the lifting frame, the output end of the first motor is coaxially fixed with the transmission shaft, a transmission chain is symmetrically provided on the lifting frame, a transmission sprocket engaged with the transmission chain is provided on the transmission shaft, and a counterweight block is provided at the end of the transmission chain away from the lifting frame.

[0015] By adopting the above technical solution, when the drive motor rotates, it drives the transmission shaft to rotate, the rotation of the transmission shaft drives the transmission sprocket to rotate, the rotation of the transmission sprocket drives the two ends of the transmission chain to move, and the end of the transmission chain away from the counterweight moves to drive the lifting frame to move. By switching the forward and reverse rotation of the drive motor, the purpose of switching the direction when the lifting frame moves up and down can be achieved.

[0016] Optionally, an anti-arching mechanism for stirring the magnesium powder is provided in the magnesium powder silo.

[0017] By adopting the above technical solution, the magnesium powder in the magnesium powder silo is stirred by the anti-arching mechanism, thereby reducing the possibility of arching of the magnesium powder in the magnesium powder silo, which is conducive to smooth magnesium powder filling.

[0018] Optionally, the anti-arching mechanism includes a rotating sleeve and a stirring rod, the rotating sleeve is rotatably arranged on the outer wall of the inner guide tube, the stirring rod is arranged on the rotating sleeve, a worm gear is coaxially fixed to the outer side of the rotating sleeve, a first rotating shaft is rotatably connected to the magnesium powder silo, a worm is coaxially fixed on the first rotating shaft, the worm is adapted to the worm gear, and a second motor is provided on the magnesium powder silo to drive the first rotating shaft to rotate.

[0019] By adopting the above technical solution, when the second motor is started, it drives the first rotating shaft to rotate, the rotation of the first rotating shaft drives the worm to rotate, the rotation of the worm drives the worm wheel to rotate, the rotation of the worm wheel drives the rotating sleeve to rotate, and the rotation of the rotating sleeve drives the stirring rod to rotate, thereby achieving the purpose of stirring and disturbing the magnesium powder in the magnesium powder silo by the stirring rod.

[0020] Optionally, a blocking ring for blocking the discharge hole is provided on the outer side of the inner conduit, and a driving component for driving the blocking ring to slide up and down is provided in the magnesium powder silo.

[0021] By adopting the above technical solution, when the magnesium powder in the magnesium powder silo is filled, the driving component drives the blocking ring to move downward until the discharge hole is blocked, which can reduce the possibility of dust accumulation in the magnesium powder silo during non-working hours causing dust or other debris to block the discharge hole; when magnesium powder is being filled, the driving component drives the blocking ring to move upward and separate it from the discharge hole, which is conducive to the discharge of magnesium powder in the magnesium powder silo from the discharge hole.

[0022] Optionally, the driving assembly includes a second rotating shaft and a cam provided on the second rotating shaft, the second rotating shaft is rotatably connected to the magnesium powder hopper, the blocking ring is provided with a contact piece, the top of the blocking ring is provided with a movable groove, the bottom end of the outer wall of the rotating sleeve abuts the top end of the inner wall of the movable groove, the inner guide tube is provided with a lower fixing ring, the lower fixing ring is provided in the movable groove, the movable groove is provided with a tension spring, one end of the tension spring is fixed to the bottom wall of the movable groove, and the other end is fixed to the lower fixing ring, the outer contour side wall of the cam abuts the top end of the contact piece, the second rotating shaft passes through the magnesium powder hopper and is provided with a driven gear at one end close to the second motor, a driving gear is coaxially fixed on the first rotating shaft, the driving gear and the driven gear are connected by a synchronous belt, and the magnesium powder hopper is provided with a first brake for braking the first rotating shaft.

[0023] By adopting the above technical solution, when the magnesium powder in the magnesium powder silo is filled, the second motor drives the first rotating shaft to rotate, the rotation of the first rotating shaft drives the driving gear to rotate, the rotation of the driving gear drives the driven gear to rotate, the rotation of the driven gear drives the second rotating shaft to rotate, the rotation of the second rotating shaft drives the cam to rotate, and the rotation of the cam drives the blocking ring to move downward by pressing the contact piece. When the large diameter end of the cam abuts the top of the contact piece, the blocking ring drops to the lowest position, which can block the discharge hole. At this time, the first brake is started to brake the first rotating shaft, and the blocking ring keeps blocking the discharge hole, reducing the possibility of dust or other debris accumulating in the magnesium powder silo during non-working hours to block the discharge hole.

[0024] Optionally, a guide cone surface is provided at the lower end of the blocking ring, and a plurality of tamping pieces are provided on the guide cone surface, and the tamping pieces can penetrate into the discharge hole.

[0025] By adopting the above technical solution and setting the guide cone surface, the blocking ring has the function of breaking up the agglomerated magnesium powder when it moves downward, and at the same time can reduce the resistance of the blocking ring to the magnesium powder when it moves downward; in the process of the blocking ring moving up and down, the tamping piece continuously moves in and out of the discharge hole, further reducing the possibility of blockage of the discharge hole, which is conducive to the smooth discharge of magnesium powder.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When filling the stainless steel heating tube with magnesium powder, pour magnesium powder into the magnesium powder silo, and the magnesium powder is discharged into the interlayer space through the discharge hole under the action of gravity. Subsequently, the driving mechanism drives the lifting frame to move downward, and the lifting frame drives the magnesium powder silo to move downward, and then synchronously drives the inner and outer tubes to move downward. Since the terminal is stuck in the interlayer space, the terminal moves downward with the inner and outer tubes, and the terminal synchronously drives the heating wire downward. Subsequently, the outer tube is gradually inserted into the stainless steel heating tube below until the head passes through the avoidance hole. After clamping the lower end of the head with external force, the driving mechanism drives the lifting frame upward. The lifting frame drives the magnesium powder silo, the inner and outer tubes to rise together, while the terminal and the heating wire connected to the terminal remain in the stainless steel heating tube because the head is clamped. During the rising process, after the lower end of the interlayer space is separated from the head, the magnesium powder in the interlayer space begins to fall downward and finally falls into the stainless steel heating tube, thus achieving the purpose of filling the stainless steel heating tube with magnesium powder from bottom to top. Compared with manually filling the stainless steel heating tube with magnesium powder, the filling efficiency of magnesium powder is improved.

[0028] 2. Through the setting of the electromagnetic vibrator, during the magnesium powder filling process, the electromagnetic vibrator makes the stainless steel heating tube vibrate, reducing the magnesium powder from adhering to the inner tube wall of the stainless steel heating tube during the falling process, thereby causing the magnesium powder to be filled poorly;

[0029] 3. Through the arrangement of the first transfer plate and the second transfer plate, after the stainless steel heating tube is installed on the mounting frame, the first transfer plate and the second transfer plate can be adjusted along the length direction of the vibration plate mounting seat, so that the first clamping groove and the second clamping groove are staggered with each other and the stainless steel heating tube is clamped between the groove walls of the first clamping groove and the second clamping groove, so as to improve the adaptability of the electromagnetic vibrator to stainless steel heating tubes of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0031] Figure 2 It is a structural diagram of the driving mechanism in Example 1 of the present application.

[0032] Figure 3 It is a cross-sectional view showing the positional relationship between the inner conduit and the lifting frame in the first embodiment of the present application.

[0033] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A in the middle.

[0034] Figure 5 yes Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0035] Figure 6 It is a structural schematic diagram of the avoidance hole in Example 1 of the present application.

[0036] Figure 7 It is a structural diagram of the electromagnetic vibrator in the first embodiment of the present application.

[0037] Figure 8 It is a structural diagram of the magnesium powder silo in Example 2 of the present application.

[0038] Figure 9 It is a structural diagram of the anti-arching mechanism in the second embodiment of the present application.

[0039] Figure 10 It is a cross-sectional view showing the internal structure of the blocking ring in the second embodiment of the present application.

[0040] Figure 11 It is a structural diagram of the driving component in the second embodiment of the present application.

[0041] Explanation of reference numerals: 1. mounting frame; 11. supporting base; 12. fixing seat; 121. second brake; 13. clamping device; 14. base fixing plate; 141. avoidance hole; 2. lifting frame; 21. transmission chain; 211. counterweight; 22. inner guide tube; 221. interlayer space; 222. upper fixing ring; 223. lower fixing ring; 23. heating wire; 231. terminal; 2311. end cap; 3. driving mechanism; 31. first motor; 32. transmission shaft; 321. transmission sprocket; 4. magnesium powder silo; 41. outer guide tube; 42. discharge hole; 43. first rotating shaft; 431. worm; 432 , driving gear; 44, second motor; 45, first brake; 5, stainless steel heating tube; 6, electromagnetic vibrator; 61, vibration plate mounting seat; 62, first transfer plate; 621, first clamping groove; 63, second transfer plate; 631, second clamping groove; 64, guide adjustment hole; 65, locking bolt; 7, anti-arching mechanism; 71, rotating sleeve; 711, worm gear; 72, stirring rod; 8, blocking ring; 81, contact plate; 82, movable groove; 821, tension spring; 83, guide cone surface; 831, tamping piece; 9, driving assembly; 91, second rotating shaft; 911, driven gear; 92, cam; 93, synchronous belt. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-11 , further details of this application are given.

[0043] Example 1:

[0044] The first embodiment of the present application discloses a magnesium powder filling device for armored heating wire. Figure 1 A magnesium powder filling device for armored heating wire includes a mounting frame 1, a support base 11 is welded to the bottom end of the mounting frame 1, a lifting frame 2 and a driving mechanism 3 for driving the lifting frame 2 to move up and down are provided on the mounting frame 1, and a magnesium powder silo 4 is fixedly connected to the bottom end of the lifting frame 2.

[0045] Reference Figure 1 and Figure 2 The top of the side wall of the mounting frame 1 is fixedly connected to a fixing base 12. The drive mechanism 3 includes a first motor 31 mounted on the fixing base 12. A transmission shaft 32 is rotatably connected to the fixing base 12. The rotation shaft is arranged along the length of the lifting frame 2. The output end of the first motor 31 is coaxially fixed to the transmission shaft 32. A transmission chain 21 is symmetrically connected to both sides of the top of the lifting frame 2. A transmission sprocket 321 is coaxially fixed to the outer side of the transmission shaft 32. The transmission sprocket 321 meshes with the transmission chain 21. The transmission chain 21 passes over the transmission sprocket 321 and hangs downward. A counterweight 211 is fixed to the end of the transmission chain 21 away from the lifting frame 2.

[0046] Reference Figure 1 To facilitate braking of the transmission shaft 32 and reduce the possibility of rotation of the transmission shaft 32 under other external forces, which could pose a safety hazard, a second brake 121 is mounted on the fixing base 12 for braking the transmission shaft 32. The second brake 121 is sleeved on the outside of the transmission shaft 32. In this first embodiment, the second brake 121 is an electromagnetic clutch.

[0047] When the drive motor rotates, it drives the transmission shaft 32 to rotate. At this time, the second brake 121 is closed, and the rotation of the transmission shaft 32 drives the transmission sprocket 321 to rotate. The rotation of the transmission sprocket 321 drives the two ends of the transmission chain 21 to move. The end of the transmission chain 21 away from the counterweight block 211 moves, driving the lifting frame 2 to move. The direction of the lifting frame 2 can be switched when it moves up and down by switching the forward and reverse rotation of the drive motor. When the drive motor stops, the second brake 121 is activated to brake the transmission shaft 32.

[0048] Reference Figure 3 、 Figure 4 As shown in Figure 5 , an inner conduit 22 is fixed to the lifting frame 2. A heating wire 23 is inserted into the inner conduit 22. A terminal 231 is fixed to the lower end of the heating wire 23. The bottom end of the terminal 231 is fixedly connected to a head 2311. An outer conduit 41 is fixedly connected to the lower end of the magnesium powder silo 4. The lower end of the inner conduit 22 is inserted into the outer conduit 41, forming an interlayer space 221 between the inner conduit 22 and the outer conduit 41. The top end of the terminal 231 is fixedly mounted in the interlayer space 221, and the bottom end of the terminal 231 is exposed outside the outer conduit 41. A discharge hole 42 is formed at the bottom of the magnesium powder silo 4, communicating with the interlayer space 221.

[0049] Reference Figure 1 、 Figure 5 and Figure 6 A stainless steel heating tube 5 and a clamping device 13 for clamping the stainless steel heating tube 5 are provided on the mounting frame 1. A base fixing plate 14 for supporting the heating tube is fixed on the mounting frame 1. The base fixing plate 14 is located below the magnesium powder silo 4. An avoidance hole 141 for the head 2311 to pass through is opened on the base fixing plate 14. The avoidance hole 141 is coaxially arranged with the stainless steel heating tube 5.

[0050] When filling the stainless steel heating tube 5 with magnesium powder, magnesium powder is poured into the magnesium powder hopper 4. Under the action of gravity, the magnesium powder is discharged into the interlayer space 221 through the discharge hole 42. The lower end of the interlayer space 221 is blocked by the terminal 231, thereby reducing the possibility of magnesium powder overflowing from the lower end of the interlayer space 221. Subsequently, the driving mechanism 3 drives the lifting frame 2 downward, which in turn drives the magnesium powder hopper 4 downward, thereby synchronously driving the inner and outer conduits 22 and 41 downward. Because the terminal 231 is locked in the interlayer space 221, the terminal 231 also moves downward with the inner and outer conduits 22 and 41. In addition, the terminal 231 synchronously drives the heating wire 23 downward with the belt 93.

[0051] During the above process, the outer conduit 41 is gradually inserted into the stainless steel heating tube 5 below until the end cap 2311 passes through the avoidance hole 141. After the lower end of the end cap 2311 is clamped by external force, the driving mechanism 3 is used to drive the lifting frame 2 to move upward. The lifting frame 2 drives the magnesium powder hopper 4, the inner conduit 22, and the outer conduit 41 to rise together. The terminal 231 and the heating wire 23 connected to the terminal 231 remain in the stainless steel heating tube 5 due to the clamping of the end cap 2311. During the rising process, after the lower end of the interlayer space 221 is separated from the end cap 2311, the magnesium powder in the interlayer space 221 begins to fall downward and eventually falls into the stainless steel heating tube 5, thereby achieving the purpose of filling the stainless steel heating tube 5 with magnesium powder from bottom to top. Compared with manually filling the stainless steel heating tube 5 with magnesium powder, the magnesium powder filling efficiency is improved.

[0052] Reference Figure 1 and Figure 3 To further improve magnesium powder filling efficiency, several inner conduits 22 are evenly spaced along the length of the lifting frame 2. The number of heating wires 23, outer conduits 41, and stainless steel heating tubes 5 corresponds to the number of inner conduits 22. This allows magnesium powder filling to be performed simultaneously on multiple stainless steel heating tubes 5, improving overall production efficiency.

[0053] Reference Figure 1An electromagnetic vibrator 6 for vibrating the stainless steel heating tube 5 is installed on the mounting frame 1. During the magnesium powder filling process, the electromagnetic vibrator 6 is started, causing the stainless steel heating tube 5 to vibrate, thereby reducing the adhesion of magnesium powder to the inner tube wall of the stainless steel heating tube 5 during the falling process of magnesium powder, which in turn leads to poor magnesium powder filling or even magnesium powder blocking the middle of the stainless steel heating tube 5, resulting in the loss of magnesium powder in some positions in the stainless steel heating tube 5.

[0054] Reference Figure 7 The output end of the electromagnetic vibrator 6 is mounted on a vibration plate mounting base 61. A first transmission plate 62 and a second transmission plate 63 are mounted on the vibration plate mounting base 61. The first and second transmission plates 62 and 63 are stacked one on top of each other. A first clamping groove 621 is defined on one side of the first transmission plate 62, and a second clamping groove 631 is defined on the same side of the second transmission plate 63. The stainless steel heating tube 5 is positioned between the first and second clamping grooves 621 and 631. Both the first and second transmission plates 62 and 63 are provided with at least two guide adjustment holes 64, which are arranged along the length of the vibration plate mounting base 61. A locking bolt 65 is threadedly connected to the vibration plate mounting base 61 and passes through the guide adjustment holes 64 on both the first and second transmission plates 62 and 63.

[0055] After the stainless steel heating tube 5 is mounted on the mounting bracket 1, the locking bolt 65 is loosened, and the first and second transmission plates 62, 63 can be slid along the length of the vibration plate mounting base 61, so that the first and second clamping grooves 621, 631 are offset from each other and the stainless steel heating tube 5 is clamped between the walls of the first and second clamping grooves 621, 631. The locking bolt 65 is then tightened, thereby improving the adaptability of the electromagnetic vibrator 6 to stainless steel heating tubes 5 of different specifications. When the electromagnetic vibrator 6 is activated, the vibration plate mounting base 61 vibrates, driving the first and second transmission plates 62, 63 to vibrate. The stainless steel heating tube 5 is clamped by the first and second transmission plates 62, 63, facilitating vibration transmission between the first and second transmission plates 62, 63, and thus maintaining strong vibration of the stainless steel heating tube 5, thereby ensuring smooth magnesium powder filling.

[0056] The working principle of the first embodiment of the present application is as follows: when filling the stainless steel heating tube 5 with magnesium powder, magnesium powder is poured into the magnesium powder hopper 4. Under the action of gravity, the magnesium powder is discharged into the interlayer space 221 through the discharge hole 42. The lower end of the interlayer space 221 is blocked by the terminal 231, thereby reducing the occurrence of magnesium powder overflowing from the lower end of the interlayer space 221. Subsequently, the driving mechanism 3 drives the lifting frame 2 to move downward, and the lifting frame 2 drives the magnesium powder hopper 4 to move downward, thereby synchronously driving the inner conduit 22 and the outer conduit 41 downward. Since the terminal 231 is stuck in the interlayer space 221, the terminal 231 also moves downward with the inner conduit 22 and the outer conduit 41. In addition, the terminal 231 synchronously drives the heating wire 23 downward with the belt 93.

[0057] During the above process, the outer conduit 41 is gradually inserted into the stainless steel heating tube 5 below until the end cap 2311 passes through the avoidance hole 141. After the lower end of the end cap 2311 is clamped by external force, the driving mechanism 3 is used to drive the lifting frame 2 to move upward. The lifting frame 2 drives the magnesium powder hopper 4, the inner conduit 22, and the outer conduit 41 to rise together. The terminal 231 and the heating wire 23 connected to the terminal 231 remain in the stainless steel heating tube 5 due to the clamping of the end cap 2311. During the rising process, after the lower end of the interlayer space 221 is separated from the end cap 2311, the magnesium powder in the interlayer space 221 begins to fall downward and eventually falls into the stainless steel heating tube 5, thereby achieving the purpose of filling the stainless steel heating tube 5 with magnesium powder from bottom to top. Compared with manually filling the stainless steel heating tube 5 with magnesium powder, the magnesium powder filling efficiency is improved.

[0058] During the rising process, the electromagnetic vibrator 6 is started, causing the stainless steel heating tube 5 to vibrate, thereby reducing the adhesion of magnesium powder to the inner tube wall of the stainless steel heating tube 5 during the falling process of the magnesium powder, which in turn leads to poor magnesium powder filling or even magnesium powder blocking the middle of the stainless steel heating tube 5, resulting in the loss of magnesium powder in some positions in the stainless steel heating tube 5.

[0059] Example 2:

[0060] The second embodiment of the present application discloses a magnesium powder filling device for armored heating wire. Figure 8 、 Figure 9 and Figure 10The difference from the first embodiment is that an anti-arching mechanism 7 for stirring the magnesium powder is provided within the magnesium powder hopper 4. The anti-arching mechanism 7 comprises a rotating sleeve 71 and a stirring rod 72. The rotating sleeve 71 is sleeved on the outer wall of the inner conduit 22. An upper fixing ring 222 and a lower fixing ring 223 are fixedly connected to the outer wall of the inner conduit 22. The rotating sleeve is abutted between the upper fixing ring 222 and the lower fixing ring 223. The stirring rod 72 is fixed to the outer wall of the rotating sleeve 71. A plurality of stirring rods 72 are evenly arranged along the circumference of the rotating sleeve 71, and a plurality of groups of stirring rods 72 are evenly arranged along the axial direction of the rotating sleeve 71. A worm gear 711 is coaxially fixed to the top of the outer wall of the rotating sleeve 71, and a first rotating shaft 43 is rotatably connected to the magnesium powder silo 4. The first rotating shaft 43 is arranged along the length direction of the magnesium powder silo 4. A worm 431 is coaxially fixed on the first rotating shaft 43, and the worm 431 is adapted to the worm gear 711. A second motor 44 is installed on the side wall of the magnesium powder silo 4, and one end of the first rotating shaft 43 close to the second motor 44 passes through the side wall of the magnesium powder silo 4 and is coaxially fixed to the output end of the second motor 44.

[0061] When the second motor 44 is started, it drives the first rotating shaft 43 to rotate, and the rotation of the first rotating shaft 43 drives the worm 431 to rotate, and the rotation of the worm 431 drives the worm wheel 711 to rotate, and the rotation of the worm wheel 711 drives the rotating sleeve 71 to rotate, and the rotation of the rotating sleeve 71 drives the stirring rod 72 to rotate, so that the stirring rod 72 stirs and disturbs the magnesium powder in the magnesium powder silo 4, thereby reducing the possibility of the magnesium powder in the magnesium powder silo 4 forming an arch.

[0062] Reference Figure 9 、 Figure 10 and Figure 11The outer side of the inner tube 22 is provided with a blocking ring 8 for blocking the discharge hole 42, and the magnesium powder silo 4 is provided with a driving assembly 9 for driving the blocking ring 8 to slide up and down. The driving assembly 9 includes a second rotating shaft 91 and a cam 92 fixed on the second rotating shaft 91. The second rotating shaft 91 is rotatably connected to the magnesium powder silo 4, and the second rotating shaft 91 is arranged along the length direction of the magnesium powder silo 4. A contact piece 81 is fixed to the top of the side wall of the blocking ring 8, and a movable groove 82 is provided on the top of the blocking ring 8. The bottom end of the outer wall of the rotating sleeve 71 abuts against the top end of the inner wall of the movable groove 82, and the lower fixed ring 223 is arranged in the movable groove 82. A tension spring 821 is installed in the movable groove 82. The tension spring 821 is sleeved on the outer side of the inner tube 22, and one end of the tension spring 821 is fixed to the bottom wall of the movable groove 82, and the other end is fixed to the lower end surface of the lower fixed ring 223. The outer contour sidewall of the cam 92 abuts the top of the contact piece 81. A driven gear 911 is coaxially fixed to the end of the second rotating shaft 91 extending from the magnesium powder hopper 4 near the second motor 44. A driving gear 432 is coaxially fixed to the portion of the first rotating shaft 43 extending from the magnesium powder hopper. The driving gear 432 and the driven gear 911 are connected by a timing belt 93. A first brake 45 is mounted on the magnesium powder hopper 4 for braking the first rotating shaft 43. The first brake 45 is sleeved on the outside of the first rotating shaft 43. In this second embodiment, the first brake 45 is an electromagnetic clutch.

[0063] When the magnesium powder in the magnesium powder silo 4 is filled, the second motor 44 drives the first rotating shaft 43 to rotate, and the rotation of the first rotating shaft 43 drives the driving gear 432 to rotate, and the driving gear 432 drives the driven gear 911 to rotate, and the driven gear 911 drives the second rotating shaft 91 to rotate, and the rotation of the second rotating shaft 91 drives the cam 92 to rotate. The rotation of the cam 92 drives the blocking ring 8 to move downward by pressing the contact piece 81. When the large diameter end of the cam 92 abuts the top of the contact piece 81, the blocking ring 8 drops to the lowest position, which can block the discharge hole 42. At this time, the first brake 45 is started to brake the first rotating shaft 43, and the blocking ring 8 keeps blocking the discharge hole 42, reducing the possibility of dust or other debris accumulating in the magnesium powder silo 4 during non-working hours to block the discharge hole 42.

[0064] In addition, when the second motor 44 rotates to drive the stirring rod 72 to rotate, the second rotating shaft 91 also rotates at the same time. The rotation of the second rotating shaft 91 drives the cam 92 to rotate. The rotation of the cam 92 drives the blocking ring 8 to move downward by pressing the contact piece 81 until the large diameter end of the cam 92 abuts against the top of the contact piece 81. Due to the setting of the tension spring 821, when the cam 92 continues to rotate, the blocking ring 8 moves upward under the resetting action of the tension spring 821 to achieve resetting. In this way, the blocking ring 8 moves back and forth up and down above the discharge hole 42, which can facilitate the magnesium powder below the blocking ring 8 to be poked into the discharge hole 42, thereby facilitating the discharge of magnesium powder from the discharge hole 42.

[0065] Reference Figure 11 To reduce the possibility of the bottom end of blocking ring 8 pressing down on the magnesium powder below, causing it to agglomerate, blocking ring 8 is provided with a guide cone 83 at its lower end. This cone 83 acts to break up agglomerated magnesium powder during its downward movement and reduces the resistance exerted by the magnesium powder on blocking ring 8 during its downward movement. Several ramming blades 831 are fixed to guide cone 83. These ramming blades 831 are evenly spaced along the circumference of blocking ring 8 and can penetrate into discharge hole 42. As blocking ring 8 moves up and down, ramming blades 831 continuously move in and out of discharge hole 42, further reducing the possibility of clogging of discharge hole 42 and facilitating the smooth discharge of magnesium powder.

[0066] 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 magnesium powder filling device for armored heating wire, characterized by: The invention comprises a mounting frame (1), wherein the mounting frame (1) is provided with a lifting frame (2) and a driving mechanism (3) for driving the lifting frame (2) to move up and down, the lifting frame (2) is provided with a magnesium powder silo (4), the lifting frame (2) is provided with an inner conduit (22), a heating wire (23) is provided in the inner conduit (22), a terminal (231) is provided at the lower end of the heating wire (23), a sealing head (2311) is provided at the bottom end of the terminal (231), an outer conduit (41) is provided at the lower end of the magnesium powder silo (4), the inner conduit (22) is inserted into the outer conduit (41), and the inner conduit (22) and the outer conduit (41) are connected to each other. ), the terminal (231) is clamped in the interlayer space (221) and the bottom end of the terminal (231) is exposed to the outer conduit (41), the bottom of the magnesium powder silo (4) is provided with a discharge hole (42), the discharge hole (42) is communicated with the interlayer space (221), the mounting frame (1) is provided with a stainless steel heating tube (5) and a base fixing plate (14) for supporting the stainless steel heating tube (5), the base fixing plate (14) is provided with an avoidance hole (141) for the end cap (2311) to pass through, and the avoidance hole (141) is coaxially arranged with the stainless steel heating tube (5).

2. The armored heating wire magnesium powder filling equipment according to claim 1 is characterized in that: A plurality of inner conduits (22) are evenly arranged along the length direction of the lifting frame (2), and the number of the heating wires (23), outer conduits (41) and stainless steel heating tubes (5) corresponds to the number of the inner conduits (22).

3. The magnesium powder filling equipment for armored heating wire according to claim 2 is characterized in that: The mounting frame (1) is provided with an electromagnetic vibrator (6) for vibrating the stainless steel heating tube (5).

4. The magnesium powder filling equipment for armored heating wire according to claim 3 is characterized in that: The output end of the electromagnetic vibrator (6) is provided with a vibration plate mounting seat (61), and a first transfer plate (62) and a second transfer plate (63) are provided on the vibration plate mounting seat (61). The first transfer plate (62) and the second transfer plate (63) are stacked, and a first clamping groove (621) is provided on the first transfer plate (62), and a second clamping groove (631) is provided on the second transfer plate (63). The stainless steel heating tube (5) is arranged between the first clamping groove (621) and the second clamping groove (631). The first transfer plate (62) and the second transfer plate (63) are both provided with at least two guide adjustment holes (64), and the guide adjustment holes (64) are arranged along the length direction of the vibration plate mounting seat (61). The vibration plate mounting seat (61) is provided with a locking bolt (65), and the locking bolt (65) passes through the guide adjustment holes (64) on the first transfer plate (62) and the second transfer plate (63) at the same time.

5. The armored heating wire magnesium powder filling equipment according to claim 1 is characterized in that: The mounting frame (1) is provided with a fixed seat (12), the driving mechanism (3) comprises a first motor (31) provided on the fixed seat (12), a transmission shaft (32) is rotatably provided on the fixed seat (12), the transmission shaft (32) is provided along the length direction of the lifting frame (2), the output end of the first motor (31) is coaxially fixed with the transmission shaft (32), a transmission chain (21) is symmetrically provided on the lifting frame (2), a transmission sprocket (321) meshed with the transmission chain (21) is provided on the transmission shaft (32), and a counterweight (211) is provided at one end of the transmission chain (21) away from the lifting frame (2).

6. The magnesium powder filling equipment for armored heating wire according to claim 1 is characterized in that: An anti-arching mechanism (7) for stirring the magnesium powder is provided in the magnesium powder silo (4).

7. The magnesium powder filling equipment for armored heating wire according to claim 6, characterized in that: The anti-arching mechanism (7) comprises a rotating sleeve (71) and a stirring rod (72), wherein the rotating sleeve (71) is rotatably arranged on the outer wall of the inner guide tube (22), and the stirring rod (72) is arranged on the rotating sleeve (71). A worm wheel (711) is coaxially fixed to the outer side of the rotating sleeve (71), and a first rotating shaft (43) is rotatably connected to the magnesium powder silo (4), and a worm (431) is coaxially fixed to the first rotating shaft (43), and the worm (431) is adapted to the worm wheel (711). A second motor (44) is provided on the magnesium powder silo (4) for driving the first rotating shaft (43) to rotate.

8. The magnesium powder filling equipment for armored heating wire according to claim 7, characterized in that: The outer side of the inner conduit (22) is provided with a blocking ring (8) for blocking the discharge hole (42), and the magnesium powder silo (4) is provided with a driving component (9) for driving the blocking ring (8) to slide up and down.

9. The magnesium powder filling equipment for armored heating wire according to claim 8, characterized in that: The driving assembly (9) includes a second rotating shaft (91) and a cam (92) arranged on the second rotating shaft (91), the second rotating shaft (91) is rotatably connected to the magnesium powder hopper (4), the blocking ring (8) is provided with a contact piece (81), the top of the blocking ring (8) is provided with a movable groove (82), the bottom end of the outer wall of the rotating sleeve (71) is in contact with the top end of the inner wall of the movable groove (82), the inner guide tube (22) is provided with a lower fixed ring (223), the lower fixed ring (223) is arranged in the movable groove (82), the movable groove (82) is provided with a tension spring (821), the tension spring One end of the (821) is fixed to the bottom wall of the movable groove (82), and the other end is fixed to the lower fixed ring (223). The outer contour side wall of the cam (92) is in contact with the top end of the contact piece (81). The second rotating shaft (91) passes through the magnesium powder silo (4) and is provided with a driven gear (911) at one end close to the second motor (44). A driving gear (432) is coaxially fixed on the first rotating shaft (43). The driving gear (432) and the driven gear (911) are connected by a synchronous belt (93). The magnesium powder silo (4) is provided with a first brake (45) for braking the first rotating shaft (43).

10. The magnesium powder filling equipment for armored heating wire according to claim 9, characterized in that: The lower end of the blocking ring (8) is provided with a guide cone surface (83), and a plurality of tamping pieces (831) are provided on the guide cone surface (83), and the tamping pieces (831) can penetrate into the discharge hole (42).

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