CN210579308U

CN210579308U - Powder filling mechanism

Info

Publication number: CN210579308U
Application number: CN201921645357.XU
Authority: CN
Inventors: 杨雷刚
Original assignee: Zhongshan Leitongsheng Machinery Technology Co ltd
Current assignee: Zhongshan Leitongsheng Machinery Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-05-19
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to an electrothermal tube field of making, concretely relates to powder mechanism fills out. The powder filling mechanism comprises: the powder guiding device comprises a rack, a powder box, a guiding rod, a first power part, a powder guiding assembly and a second power part; the powder guide component is provided with an openable channel for powder to pass through. Drive about through first power portion and draw the stick and elongate the heater in the hollow tube and the terminal closure of micelle with the hollow tube, rethread second power portion orders about and leads the powder subassembly and inject in the hollow tube, leads the passageway in the powder subassembly afterwards and opens, directly leads to the hollow tube in from the discharge gate with the powder in the powder case. When the powder is supplied enough, the channel in the powder guide assembly is closed, the second power part drives the powder guide assembly to exit the hollow pipe, and the powder supply is finished. Whole confession powder process is swift compact, and the powder need not to carry out multistage conduction, directly leads to the air traffic from the powder case in, has avoided taking place to leak the powder in the conduction process to lead the powder subassembly and can close when withdrawing from the air traffic, further guarantee can not leak the powder.

Description

Powder filling mechanism

Technical Field

The utility model relates to an electrothermal tube field of making, concretely relates to powder mechanism fills out.

Background

An electric heating tube (also called a tubular electric heating element) is an electric appliance element which specially converts electric energy into heat energy and has the advantages of small thermal inertia, high temperature control precision, small volume, large heat productivity, cleanness, environmental protection and the like. The metal tube is used as a shell, a heating wire is axially arranged along the center in the metal tube, and magnesia sand powder with good insulation and heat conduction properties is filled in gaps. The metal armored electric heating element can heat gas, metal molds, various liquids and the like.

At present, the following problems exist in the powder filling process:

1. during each action of adding powder into the metal tube by the powder filling equipment, the phenomenon of magnesium powder leakage is serious, so that the working environment is polluted and materials are wasted;

2. after the powder filling equipment finishes adding the powder into the metal pipe, a small part of the powder fully loaded in the metal pipe needs to be manually poured back, so that the metal pipe is provided with enough positions and the colloidal particles are also arranged on the top of the metal pipe. Moreover, the poured magnesium powder is easily contaminated when it is recovered.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fill out whitewashed mechanism that can not leak powder filling in-process.

The utility model provides a technical scheme that its technical problem adopted is, provide a powder mechanism fills out, include: a frame; the powder box is used for loading powder used for filling the hollow pipe and is provided with a feeding port and a discharging port; the leading rod is used for pulling up the heating wire; the first power part is arranged on the rack and is in transmission connection with the guide rod so as to drive the guide rod to lift, so that the guide rod is driven to be inserted into or withdrawn from the empty pipe; the first power part drives the guide rod to be inserted into the hollow pipe so as to be provided with the heating wire; when the first power part drives the leading rod to exit from the hollow pipe, the heating wire is stretched in the hollow pipe, and the colloidal particles on the heating wire are pressed at the tail end of the hollow pipe to seal the tail end of the hollow pipe; the powder guide assembly is used for guiding powder in the powder box into the hollow pipe; an openable channel for powder to pass through is arranged in the powder guide assembly; the top end of the channel is communicated with the discharge hole; and the second power part is arranged on the rack and is in transmission connection with the powder guide assembly, so that the powder guide assembly is driven to be inserted into or withdrawn from the hollow pipe.

The utility model provides a pair of fill whitewashed mechanism orders about through first power portion and draws the stick to elongate the heater in the air traffic control and the micelle is with the end closure of air traffic control, and rethread second power portion orders about and leads the powder subassembly and injects in the air traffic control, leads the passageway in the powder subassembly afterwards to open, and the powder in the powder case is direct to be leading-in to the air traffic control from the discharge gate. When the powder is supplied enough, the channel in the powder guide assembly is closed, the second power part drives the powder guide assembly to exit the hollow pipe, and the powder supply is finished. Whole confession powder process is swift compact, and the powder need not to carry out multistage conduction, directly leads to the air traffic from the powder case in, has avoided taking place to leak the powder in the conduction process to lead the powder subassembly and can close when withdrawing from the air traffic, further guarantee can not leak the powder.

In some embodiments, the end of the guiding rod is provided with a notch with a hollow structure, so as to form a hook for hooking the heating wire.

In some embodiments, the top end of the guide rod is fixedly connected with the first mounting plate; first power portion is connected with first mounting panel transmission, and the lift of first mounting panel of drive to order about a plurality of on the first mounting panel to draw the stick together to go up and down.

In some embodiments, the powder guiding assembly comprises a middle guiding rod, a powder passing rod and a powder closing rod which are all coaxial with the hollow pipe; the middle guide rod is sleeved on the guide rod and is positioned between the top end of the guide rod and the hanging buckle; the top end of the middle guide rod is fixedly connected with the second mounting plate, and the tail end of the middle guide rod is provided with a boss; the second mounting plate is fixedly arranged on the powder box; the powder passing rod is sleeved on the middle guide rod and is positioned between the top end of the middle guide rod and the boss; a gap is formed between the inner wall of the powder passing rod and the outer surface of the middle guide rod, and the gap forms the channel; the top end of the powder passing rod is fixedly connected with a third mounting plate, and the third mounting plate is fixedly connected with the bottom of the powder box; a fixed space is arranged between the tail end of the powder passing rod and the boss, and the space forms a powder outlet of the channel; the powder closing rod is sleeved on the powder passing rod and is positioned between the top end of the powder passing rod and the boss; the top end of the powder closing rod is fixedly connected with the fourth mounting plate, and the inner diameter of the tail end of the powder closing rod is smaller than the outer diameter of the boss; a first lifting cylinder is arranged between the third mounting plate and the fourth mounting plate; when the piston rod of the first lifting cylinder retracts, the fourth mounting plate and the powder closing rod are driven to move upwards to be away from the boss, and the powder outlet is opened; when a piston rod of the first lifting cylinder extends out, the fourth mounting plate and the powder closing rod are driven to move downwards to be close to the boss, the tail end of the powder closing rod is in close contact with the boss, and a powder outlet is sealed; the second power part is in transmission connection with the third mounting plate so as to drive the second mounting plate, the middle guide rod, the third mounting plate, the powder passing rod, the fourth mounting plate and the powder closing rod to lift together.

In some embodiments, the boss is further provided with a cylindrical table adapted to the inner diameter of the powder closing rod, and a trapezoidal table for guiding the flow direction of the powder; the trapezoidal table is arranged on the cylindrical table.

In some embodiments, the second power section comprises: the first motor is provided with a chain wheel and is fixedly arranged on the rack; the first rotating shaft is provided with a chain wheel and can be rotatably arranged in the rack; the first motor is in transmission connection with the first rotating shaft through a first chain and drives the first rotating shaft to rotate; the second rotating shaft is provided with a chain wheel, can be rotatably arranged in the rack and is positioned below the first rotating shaft; the first rotating shaft is in transmission connection with the second rotating shaft through a second chain, so that synchronous rotation is realized; the second chain is in transmission connection with the third mounting plate, so that the second mounting plate, the middle guide rod, the third mounting plate, the powder passing rod, the fourth mounting plate and the powder closing rod are driven to lift together.

In some embodiments, the powder filling mechanism further comprises: the cylinder body of the second lifting cylinder is fixedly arranged on the rack and is positioned below the fourth mounting plate; a piston rod of the second lifting cylinder is fixedly connected with the fifth mounting plate and drives the fifth mounting plate to lift; the powder sealing sleeves are inserted in the fifth mounting plate; the powder sealing sleeve comprises a guide rod and a powder sealing head matched with the hollow pipe; the inner diameter of the guide rod is larger than the outer diameter of the powder closing rod; the powder sealing head is provided with a guide groove; when a piston rod of the second lifting cylinder extends out, the fifth mounting plate and the powder sealing sleeve are driven to be close to the hollow pipe downwards, and the powder sealing head is covered on the top end of the hollow pipe through the guide groove; when the piston rod of the second lifting cylinder retracts, the fifth mounting plate and the powder sealing sleeve are driven to be upwards away from the hollow pipe, and the powder sealing head is separated from the hollow pipe.

In some embodiments, a powder stirring assembly is arranged on the powder box; the powder stirring assembly comprises: the powder stirring motor is fixedly arranged on the box body of the powder box; the powder stirring shaft comprises a shaft body and a plurality of blades arranged on the shaft body; the blades arranged along the axial direction of the shaft body are mutually spaced; the blades arranged along the radial direction of the shaft body are mutually vertical; the powder stirring motor is in transmission connection with the shaft body and drives the shaft body to rotate.

In some embodiments, the rack is further provided with a position sensor for sensing the position of the powder outlet in the hollow pipe, and the position sensor is mounted on the rack and positioned on one side of the third mounting plate.

In some embodiments, the powder filling mechanism further comprises a limiting assembly, the limiting assembly comprising: the limiting screw is coaxially connected with the chain wheel and is vertically arranged at the top of the rack; the second motor is arranged at the top of the rack and is in transmission connection with the limit screw through a third chain so as to drive the limit screw to rotate, and therefore the limit screw is driven to move up and down.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic perspective view of an empty tube according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a heating wire according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a semi-finished electrothermal tube according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a powder filling mechanism according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a powder filling apparatus according to an embodiment of the present invention;

3 FIG. 3 6 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 the 3 location 3 A 3- 3 A 3 in 3 FIG. 3 5 3; 3

FIG. 7 is a rear view of FIG. 6;

FIG. 8 is a partial view of the bin of FIG. 4;

fig. 9 is a schematic structural diagram of a rod structure according to an embodiment of the present invention;

fig. 10 is an exploded view of a rod structure according to an embodiment of the present invention;

FIG. 11 is a partial view of the powder guide assembly of FIG. 6;

FIG. 12 is a partial view of the powder guide assembly of FIG. 7;

fig. 13 is a schematic perspective view of another angle of the powder filling mechanism according to the embodiment of the present invention;

fig. 14 is a schematic structural view of the end of a rod structure according to an embodiment of the present invention;

FIG. 15 is an enlarged partial schematic view of the position B in FIG. 6 (with the outlet closed);

fig. 16 is a partially enlarged schematic view of the powder outlet according to the embodiment of the present invention when opened;

fig. 17 is a schematic structural view of the powder sealing sleeve according to the embodiment of the present invention;

fig. 18 is a partial view of the powder containment sleeve of fig. 6.

The reference numerals are explained below:

11-empty pipe; 12-a heating wire; 13-colloidal particles; 14-a slide rail; 15-a positioning assembly;

2-powder box; 21-a box body; 22-box cover; 23-a discharge hole; 24-a powder stirring motor; 25-shaft body; 26-a blade;

3-leading the rod; 31-a first mounting plate; 32-a first link frame; 33-hanging and buckling;

4-a first power section;

51-a middle guide rod; 511-boss; 512-a cylindrical table; 513-a trapezoidal table; 514-a second mounting plate;

52-powder passing rod; 521-a channel; 522-a third mounting plate; 523-second link; 524-a drive plate; 525-a powder outlet;

53-powder closing rod; 531-fourth mounting plate; 532-a first lift cylinder;

61-a first motor; 62-a first shaft; 63-a second shaft; 64-a first chain; 65-a second chain; 66-a position sensor;

71-a second lifting cylinder; 72-a fifth mounting plate; 73-sealing a powder sleeve; 731-a guide bar; 732-sealing the powder head; 733-guide groove; 74-a third link;

8-a limiting component; 81-limit screw; 82-a second motor; 83-third chain.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

Referring to fig. 1, the metal tube is an empty tube 11 that has been cut to a desired length.

Referring to fig. 2, one end of the heating wire 12 is connected with a colloidal particle 13, and the colloidal particle 13 is a sealing member at the end of the hollow tube 11.

Referring to fig. 3, the inside of the metal tube, in which the elongated heating wire 12 is placed and which is filled with magnesium powder, has been clogged at the end thereof with the colloidal particles 13.

Referring to fig. 4, the utility model discloses a fill out whitewashed mechanism, fill out whitewashed mechanism and include: a frame (not shown in figure 4), a powder box 2, a guide rod 3, a first power part 4, a powder guide component and a second power part.

Referring to fig. 5 to 7 together, the utility model also discloses a powder filling device, including the powder filling mechanism in this embodiment and the locating component for fixing the empty pipe 11 below the powder filling structure.

Specifically, the frame is used as a bearing main body and can be used for installing each structural component. In order to improve the movement precision of the structural member on the frame, a vertical (in the direction shown in the figure) slide rail 14 is arranged on the frame, and a plurality of slide seats are arranged on the slide rail 14.

Referring to fig. 8, the powder box 2 contains powder for filling, such as magnesium powder, therein. The powder box 2 comprises a funnel-shaped box body 21 with a wide upper part and a narrow lower part and a box cover 22 hinged with the box body 21. The upper end of the box body 21 is provided with a charging opening, and the lower end is provided with a discharging opening 23. By adopting the funnel-shaped structure, the magnesium powder can slide down under the action of gravity.

With continued reference to fig. 8, further, the powder box 2 is provided with a powder-stirring assembly, which includes a powder-stirring motor 24 and a powder-stirring shaft. Specifically, the powder stirring motor 24 is fixedly arranged on the box body 21 of the powder box 2. The powder stirring shaft comprises a shaft body 25 and a plurality of blades 26 arranged on the shaft body 25. Wherein, the blades 26 arranged along the axial direction of the shaft body 25 are mutually spaced; the blades 26 are arranged in the radial direction of the shaft body 25 to be perpendicular to each other. Like this, dial and realize the transmission through the sprocket chain between powder motor 24's the pivot and the axis body 25 and be connected to order about axis body 25 and rotate, dial the powder axle when the pivoted, blade 26 on the axis body 25 dials the magnesium powder to discharge gate 23.

By adopting the powder stirring shaft with the arrangement mode of the blades 26, when the shaft body 25 rotates, one part of magnesium powder is stirred by the blades 26, and the other part of magnesium powder is not stirred because of being positioned at the interval position between the two blades 26 in the axial direction. Therefore, the powder stirring amount of the powder stirring shaft in the embodiment is very uniform and moderate, the discharge hole 23 cannot be blocked due to excessive powder stirring, and the slow discharge due to insufficient powder stirring cannot be caused.

Referring to fig. 8 to 12 together, the guide rod 3 in this embodiment is a solid metal long rod. The top end of the guiding rod 3 is inserted and fixed in the first mounting plate 31, the first mounting plate 31 is fixedly connected with the first connecting frame 32, and the first connecting frame 32 is fixedly connected with the first sliding seat on the sliding rail 14. The tail end of the leading rod 3 is provided with a hanging buckle 33 for hooking and pulling the heating wire 12. The hanging buckle 33 is formed by forming a notch with a slope at the end of the guiding rod 3. The hanging buckle 33 in this embodiment is a hollow structure. When the dust falls to the position of the notch, the dust can be discharged from the hollow position, and is prevented from accumulating in the notch. In other embodiments, a clamping member may be provided on the draw bar 3 to pull the heating wire 12.

Referring to fig. 13, the first power unit 4 is disposed on the frame and is in transmission connection with the first mounting plate 31, and drives the first mounting plate 31 to move up and down, thereby driving the guide rod 3 to be inserted into or withdrawn from the empty pipe 11. Specifically, the first power unit 4 in this embodiment is a long-stroke cylinder, and the long-stroke cylinder is mounted on the frame and parallel to the slide rail 14. The piston rod of the long-stroke cylinder is fixedly connected with the first connecting frame 32 so as to drive the first mounting plate 31 to slide up and down along the slide rail 14 and drive the guide rod 3 to be inserted into or withdrawn from the hollow pipe 11. In other embodiments, the first power unit 4 may also adopt a screw pair structure, a sprocket chain structure, a pulley structure or a hydraulic driving structure.

Referring to fig. 14 to 16 together, a powder guide assembly for guiding magnesium powder in the powder box 2 into the hollow tube 11. Be equipped with the openable passageway 521 that supplies the powder to pass through in leading the powder subassembly, the top and the discharge gate 23 intercommunication of this passageway 521. In this embodiment, the powder guiding assembly and the guiding rod 3 form a rod structure. Specifically, the powder guide assembly comprises a middle guide rod 51, a powder passing rod 52 and a powder closing rod 53 which are all coaxial with the hollow pipe 11. Wherein, the middle guide rod 51, the powder passing rod 52 and the powder closing rod 53 are all hollow round tubes.

The middle guide rod 51 is sleeved on the guide rod 3 and is positioned between the top end of the guide rod 3 and the hanging buckle 33. The top end of the middle guide rod 51 is fixedly connected with a second mounting plate 514, and the second mounting plate 514 is fixedly arranged on the upper surface of the powder box 2. The end of the guide rod 51 is provided with a boss 511. The boss 511 is provided with a cylindrical table 512 which is adapted to the inner diameter of the powder closing rod 53, so as to further ensure that the tail end of the powder closing rod 53 is not leaked after contacting with the boss 511. The cylindrical table 512 is provided with a trapezoidal table 513 for guiding the flow direction of the powder.

The powder passing rod 52 is sleeved on the middle guide rod 51 and is positioned between the top end of the middle guide rod 51 and the boss 511 of the middle guide rod 51. The top end of the powder passing rod 52 is provided with an annular structure, the top end of the powder passing rod 52 is fixedly connected with the third mounting plate 522, and the third mounting plate 522 is fixedly connected with the bottom surface of the powder box 2 provided with the discharge hole 23. The third mounting plate 522 is further fixedly connected to a second connecting frame 523, and the second connecting frame 523 is fixedly connected to a second sliding seat on the sliding rail 14. A gap exists between the inner wall of the powder passing rod 52 and the outer surface of the middle guide rod 51, and the gap forms the channel 521. The channel 521 is tightly communicated with the discharge port 23, and the powder material is discharged from the discharge port 23 and then directly enters the channel 521. A fixed space is arranged between the tail end of the powder passing rod 52 and the lug boss 511, the space forms a powder outlet 525 of the channel 521, and magnesium powder can flow out of the powder outlet 525 after flowing through the channel 521.

The powder closing rod 53 is sleeved on the powder passing rod 52 and is positioned between the top end of the powder passing rod 52 and the boss 511 of the middle guide rod 51. The top end of the powder closing rod 53 is also provided with an annular structure. The top end of the powder closing rod 53 is fixedly connected with the fourth mounting plate 531, and the inner diameter of the tail end is smaller than the outer diameter of the boss 511. Be equipped with first lift cylinder 532 between third mounting panel 522 and the fourth mounting panel 531, the piston rod and the fourth mounting panel 531 rigid coupling of first lift cylinder 532. With continued reference to fig. 15, when the piston rod of the first lifting cylinder 532 retracts, the fourth mounting plate 531 and the powder closing rod 53 are driven to move upwards away from the boss 511, the powder outlet 525 is opened, and magnesium powder can be discharged from the powder outlet 525 and enter the empty tube 11. With reference to fig. 16, when the piston rod of the first lifting cylinder 532 extends out, the fourth mounting plate 531 and the powder closing rod 53 are driven to move downward to approach the boss 511, the end of the powder closing rod 53 is in close contact with the boss 511, the powder outlet 525 is sealed, and the magnesium powder cannot be discharged.

Still referring to fig. 4 to 7 and 13, the second power unit is in transmission connection with the third mounting plate 522, so as to drive the second mounting plate 514, the third mounting plate 522 and the fourth mounting plate 531 to lift and lower together. Specifically, the second power portion includes a first motor 61 having a sprocket on an output shaft, a first rotating shaft 62 having sprockets at both ends, and a second rotating shaft 63 having sprockets at both ends. The first motor 61 is fixed on the frame. The first rotating shaft 62 is rotatably disposed in the frame, and is in transmission connection with the first rotating shaft 62 through a first chain 64 to drive the first rotating shaft 62 to rotate. The second rotating shaft 63 is rotatably disposed in the frame and located below the first rotating shaft 62, and is in transmission connection with the second rotating shaft 63 through a second chain 65, so as to rotate synchronously with the first rotating shaft 62. The second chain 65 is engaged with the driving plate 524 in the second connecting frame 523, and the driving plate 524 and the structure thereon can be driven to move up and down while the second chain 65 rotates. In other embodiments, the first motor 61 can be directly used to drive the second rotating shaft 63 to rotate, and the first rotating shaft 62 as an intermediate shaft can be eliminated. In other embodiments, the second power portion may also adopt a screw pair structure, a pulley structure or a hydraulic driving structure.

With continued reference to fig. 4 and 5, a position sensor 66 is also disposed on the frame for sensing the position of the powder outlet 525 in the empty tube 11. By using the position sensor 66 or setting a height value in the control system in advance, in the process that the powder guiding assembly is filled with powder and ascends in the hollow tube 11, when the powder outlet 525 reaches a preset position, the position sensor 66 senses that, subsequently, the control system (not shown) controls the first lifting cylinder 532 to extend out of the piston rod, the tail end of the powder closing rod 53 is abutted against the boss 511, and the powder outlet 525 is closed. More specifically, for example, during the ascending of the powder guiding assembly in the hollow tube 11, when the end of the powder passing rod 52 is flush with the top opening of the hollow tube 11, the end of the powder closing rod 53 abuts against the boss 511, and the powder outlet 525 is closed. Thus, the top of the hollow tube 11 has a small portion not filled with the magnesium powder. Therefore, compared with the related technology, the powder filling machine of the embodiment does not need to pour a small amount of magnesium powder after powder filling is finished, so that the total consumption of the powder filling process is greatly reduced, and the magnesium powder is not polluted.

Referring to fig. 17 and 18 together, in order to facilitate the accurate butt joint of the powder guiding assembly and the inner hole of the hollow tube 11, the powder filling mechanism further comprises a second lifting cylinder 71, a fifth mounting plate 72 and a plurality of powder sealing sleeves 73. Specifically, the top of the cylinder body of the second lifting cylinder 71 is fixedly connected with a third connecting frame 74 (fig. 7), and the third connecting frame 74 is fixedly connected with a third sliding seat. After the height of the second lifting cylinder 71 on the machine frame is determined, the third carriage can be locked so that it can no longer slide along the slide rail 14. The piston rod of the second lifting cylinder 71 is fixedly connected with the fifth mounting plate 72. A plurality of envelope sleeves 73 are vertically inserted in the fifth mounting plate 72. The powder sealing sleeve 73 includes a guide bar 731 and a powder sealing head 732 engaged with the hollow tube 11. The inner diameter of the guide rod 731 is slightly larger than the outer diameter of the powder closing rod 53, and the powder guide assembly is inserted into the guide rod 731. The powder sealing head 732 is provided with a guide groove 733 narrow at the top and wide at the bottom. When the piston rod of the second lifting cylinder 71 extends out, the fifth mounting plate 72 and the powder sealing sleeve 73 are driven to move downward to approach the hollow tube 11, and the powder sealing head 732 is accurately covered on the top end of the hollow tube 11 through the guiding effect of the guiding groove 733. When the piston rod of the second lifting cylinder 71 retracts, the fifth mounting plate 72 and the powder sealing sleeve 73 are driven to move upwards away from the hollow pipe 11, and the powder sealing head 732 is separated from the hollow pipe 11.

Referring to fig. 5 and 11, the powder filling mechanism further comprises a limiting assembly 8, wherein the limiting assembly 8 comprises a limiting screw 81 and a second motor 82 which are coaxially connected with the chain wheel. The limit screw 81 is vertically arranged at the top of the rack and abuts against the first connecting frame 32 or the first mounting plate 31. The second motor 82 is disposed at the top of the frame and is in transmission connection with the limit screw 81 through a third chain 83 to drive the limit screw 81 to rotate, so as to drive the limit screw 81 to move up and down.

Preferably, the first motor 61, the second motor 82 and the powder stirring motor 24 in the embodiment all adopt high-precision servo motors.

In summary of the above description of the structure of the powder filling mechanism, the following describes the operation of the powder filling mechanism:

s1, according to the actual length of the hollow pipe 11, the third chain 83 is driven to rotate through the second motor 82, so that the limiting screw 81 is driven to rotate, the lifting is realized in the process that the limiting screw 81 rotates along the thread on the limiting screw 81, the highest height of the first connecting frame 32, the first mounting plate 31 and the guide rod 3 can rise is adjusted, and the working stroke of the guide rod 3 is prevented from being too long.

S2, after the adjustment is finished, a plurality of empty pipes 11 are positioned by using a manual or positioning assembly 15 (figure 5).

And S3, extending the piston rod out by the second lifting cylinder 71, and sleeving the powder sealing sleeve 73 on the fifth mounting plate 72 on the top end of the hollow pipe 11.

S4, the long-stroke air cylinder retracts the piston rod, so that the first connecting frame 32, the first mounting plate 31 and the guide rod 3 are driven to descend together, and the guide rod 3 is inserted into the hollow pipe 11 and penetrates out of the tail end of the hollow pipe 11. Meanwhile, the first motor 61 drives the first chain 64 and the second chain 65 to rotate synchronously, and the second chain 65 drives the second connecting frame 523, the second mounting plate 514, the middle guide rod 51 with one end fixed on the second mounting plate 514, the third mounting plate 522, the powder passing rod 52 with one end fixed on the third mounting plate 522, the fourth mounting plate 531 and the powder closing rod 53 with one end fixed on the fourth mounting plate 531 to descend to the bottom of the hollow pipe 11 together through the transmission plate 524 when rotating (at this time, the powder outlet 525 is still in a closed state).

S5, the heating wire 12 is hung on the hanging buckle 33 at the tail end of the leading rod 3 manually or by a feeding assembly (not shown).

S6, the long-stroke cylinder stretches out the piston rod to drive the guide rod 3 to ascend. During the rising process of the guide rod 3, the colloidal particles 13 on the heating wire 12 are blocked by the tail end of the hollow tube 11, so that the tail end of the hollow tube 11 is blocked and sealed. The other end of the heating wire 12 is pulled and extended to a designated position by the raised hanging buckle 33.

S7, the powder stirring motor 24 drives the powder stirring shaft to rotate, and magnesium powder in the box body 21 flows into a channel 521 between the powder passing rod 52 and the middle guide rod 51 at a constant speed and uninterruptedly.

S8, the piston rod of the first lifting cylinder 532 retracts to drive the fourth mounting plate 531 and the powder closing rod 53 to ascend, the tail end of the powder closing rod 53 is far away from the boss 511, the powder outlet 525 is opened, and magnesium powder flows into the hollow pipe 11 from the powder outlet 525.

S9, then, the first motor 61 drives the first chain 64 and the second chain 65 to rotate synchronously, and when the second chain 65 rotates, the second connecting frame 523, the second mounting plate 514, the middle guide rod 51 with one end fixed on the second mounting plate 514, the third mounting plate 522, the powder passing rod 52 with one end fixed on the third mounting plate 522, the fourth mounting plate 531 and the powder closing rod 53 with one end fixed on the fourth mounting plate 531 are driven by the transmission plate 524 to ascend to a specified position together (for example, the tail end of the powder passing rod 52 ascends to be flush with the top end opening of the hollow pipe 11). During this ascent, magnesium powder continuously flows into the hollow tube 11 from the powder outlet 525, and the position of the powder guide assembly is sensed by the position sensor.

S10, after the magnesium powder rises to the designated position in the hollow pipe 11, the piston rod of the first lifting cylinder 532 extends out to drive the powder closing rod 53 to descend and abut against the boss 511, the powder outlet 525 is closed, and the magnesium powder stops flowing into the hollow pipe 11 again. At this time, the height of the magnesium powder in the hollow tube 11 has a difference in height from the top opening of the hollow tube 11. Therefore, a small part of magnesium powder does not need to be poured out, the working efficiency is improved, and the pollution to the magnesium powder is avoided.

S11, then the first motor 61 continues to drive the middle guide rod 51, the powder passing rod 52 and the powder closing rod 53 to continuously ascend to a preset height, the first connecting frame 32 pushes the limiting screw 81, and the first motor 61 stops.

S12, taking down the metal pipe filled with the powder, placing the metal pipe at a specified position, and allowing the metal pipe to flow into the next procedure.

And by parity of reasoning, the work is carried out circularly.

According to the above description, the powder filling mechanism of the present embodiment has at least the following advantages:

1. drive about through first power portion and lead the stick and elongate the heater in the hollow tube and the terminal closure of micelle with the hollow tube, rethread second power portion orders about and leads the powder subassembly and inject in the hollow tube, leads the passageway in the powder subassembly afterwards and opens, directly leads to the hollow tube in from the discharge gate with the magnesium powder in the powder case. When the powder is supplied enough, the channel in the powder guide assembly is closed, the second power part drives the powder guide assembly to exit the hollow pipe, and the powder supply is finished. Whole confession powder process is swift compact, and the magnesium powder need not to carry out multistage conduction, directly leads to the blank pipe in from the powder case in, has avoided taking place to leak the powder in the conduction process to lead the powder subassembly and can close when withdrawing from the blank pipe, further guarantee can not leak the powder.

2. Close out the powder mouth before leading the powder subassembly to leave the top of air traffic control to make the top of tubular metal resonator have a small part not to fill in the magnesium powder, realized need not to pour out a part magnesium powder again after filling the powder and finishing, reached and reduced the total consuming time of filling the powder process, can not pollute the effect of magnesium powder.

3. The guiding rod is sleeved on the guiding rod, so that the magnesium powder can be separated from the guiding rod, and the magnesium powder is prevented from interfering with the lifting motion of the guiding rod; the powder passing rod is sleeved on the middle guide rod, and a gap is reserved between the powder passing rod and the middle guide rod, so that a unique channel for magnesium powder to pass through is formed; the powder closing rod is sleeved on the powder passing rod, and the clutch between the tail end of the powder closing rod and the boss on the middle guide rod is utilized, so that the closing of the channel is realized. The rod body structure of this integral type is ingenious compact, can not only fill out powder in-process and leak not leak powder, can also improve the degree of automation of whole equipment.

4. Through the second chain that sets up at first pivot, second pivot both ends and the driving plate meshing at second link both ends for the lift of the structure that third mounting panel and third mounting panel are connected is more steady.

5. The powder sealing sleeve is arranged above the hollow pipe, so that the powder guide assembly and the hollow pipe are ensured to be coaxial. Meanwhile, the upper end opening of the hollow tube is covered by the powder sealing head, so that powder leakage is further avoided.

6. Through mutual interval between the blade that sets up along the axial of axis body, mutually perpendicular between the blade of radial setting along the axis body, when the pivot rotates, the even appropriate amount of magnesium powder that the blade was stirred, the condition that the magnesium powder was raisd can not appear in the powder incasement, the too low condition of confession powder volume also can not appear.

7. Be equipped with spacing subassembly through the top at first mounting panel, can be according to the length of the air traffic control of different specifications to the highest rise height of stick is drawn in the regulation, can guarantee like this to draw after the air traffic control adorns locating component to have a suitable distance between the end of stick and the top of air traffic control, can adjust the lift stroke of drawing the stick to shorter again, with shorten and fill out powder total time.

While the present invention has been described with reference to the exemplary embodiments described above, it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A powder filling mechanism, comprising:

a frame;

the powder box is used for loading powder used for filling the hollow pipe and is provided with a feeding port and a discharging port;

the leading rod is used for pulling up the heating wire;

the first power part is arranged on the rack and is in transmission connection with the guide rod so as to drive the guide rod to lift, so that the guide rod is driven to be inserted into or withdrawn from the empty pipe; the first power part drives the guide rod to be inserted into the hollow pipe so as to be provided with the heating wire; when the first power part drives the leading rod to exit from the hollow pipe, the heating wire is stretched in the hollow pipe, and the colloidal particles on the heating wire are pressed at the tail end of the hollow pipe to seal the tail end of the hollow pipe;

the powder guide assembly is used for guiding powder in the powder box into the hollow pipe; an openable channel for powder to pass through is arranged in the powder guide assembly; the top end of the channel is communicated with the discharge hole;

and the second power part is arranged on the rack and is in transmission connection with the powder guide assembly, so that the powder guide assembly is driven to be inserted into or withdrawn from the hollow pipe.

2. The powder filling mechanism of claim 1, wherein the end of the guiding rod is provided with a hollow notch to form a hook for hooking the heating wire.

3. The powder filling mechanism of claim 2, wherein the top end of the guide rod is fixedly connected with the first mounting plate; first power portion is connected with first mounting panel transmission, and the lift of first mounting panel of drive to order about a plurality of on the first mounting panel to draw the stick together to go up and down.

4. The powder filling mechanism of claim 1, wherein the powder guiding assembly comprises a middle guiding rod, a powder passing rod and a powder closing rod which are all coaxial with the hollow pipe;

the middle guide rod is sleeved on the guide rod and is positioned between the top end of the guide rod and the hanging buckle; the top end of the middle guide rod is fixedly connected with the second mounting plate, and the tail end of the middle guide rod is provided with a boss; the second mounting plate is fixedly arranged on the powder box;

the powder passing rod is sleeved on the middle guide rod and is positioned between the top end of the middle guide rod and the boss; a gap is formed between the inner wall of the powder passing rod and the outer surface of the middle guide rod, and the gap forms the channel; the top end of the powder passing rod is fixedly connected with a third mounting plate, and the third mounting plate is fixedly connected with the bottom of the powder box; a fixed space is arranged between the tail end of the powder passing rod and the boss, and the space forms a powder outlet of the channel;

the powder closing rod is sleeved on the powder passing rod and is positioned between the top end of the powder passing rod and the boss; the top end of the powder closing rod is fixedly connected with the fourth mounting plate, and the inner diameter of the tail end of the powder closing rod is smaller than the outer diameter of the boss; a first lifting cylinder is arranged between the third mounting plate and the fourth mounting plate; when the piston rod of the first lifting cylinder retracts, the fourth mounting plate and the powder closing rod are driven to move upwards to be away from the boss, and the powder outlet is opened; when a piston rod of the first lifting cylinder extends out, the fourth mounting plate and the powder closing rod are driven to move downwards to be close to the boss, the tail end of the powder closing rod is in close contact with the boss, and a powder outlet is sealed;

the second power part is in transmission connection with the third mounting plate so as to drive the second mounting plate, the middle guide rod, the third mounting plate, the powder passing rod, the fourth mounting plate and the powder closing rod to lift together.

5. The powder filling mechanism of claim 4, wherein the boss is further provided with a cylindrical table adapted to the inner diameter of the powder closing rod and a trapezoidal table for guiding the flow direction of the powder; the trapezoidal table is arranged on the cylindrical table.

6. The powder filling mechanism according to claim 4, wherein the second power section includes:

the first motor is provided with a chain wheel and is fixedly arranged on the rack;

the first rotating shaft is provided with a chain wheel and can be rotatably arranged in the rack; the first motor is in transmission connection with the first rotating shaft through a first chain and drives the first rotating shaft to rotate;

the second rotating shaft is provided with a chain wheel, can be rotatably arranged in the rack and is positioned below the first rotating shaft; the first rotating shaft is in transmission connection with the second rotating shaft through a second chain, so that synchronous rotation is realized;

the second chain is in transmission connection with the third mounting plate, so that the second mounting plate, the middle guide rod, the third mounting plate, the powder passing rod, the fourth mounting plate and the powder closing rod are driven to lift together.

7. The powder filling mechanism of claim 4, further comprising:

the cylinder body of the second lifting cylinder is fixedly arranged on the rack and is positioned below the fourth mounting plate;

a piston rod of the second lifting cylinder is fixedly connected with the fifth mounting plate and drives the fifth mounting plate to lift;

the powder sealing sleeves are inserted in the fifth mounting plate; the powder sealing sleeve comprises a guide rod and a powder sealing head matched with the hollow pipe; the inner diameter of the guide rod is larger than the outer diameter of the powder closing rod; the powder sealing head is provided with a guide groove;

when a piston rod of the second lifting cylinder extends out, the fifth mounting plate and the powder sealing sleeve are driven to be close to the hollow pipe downwards, and the powder sealing head is covered on the top end of the hollow pipe through the guide groove; when the piston rod of the second lifting cylinder retracts, the fifth mounting plate and the powder sealing sleeve are driven to be upwards away from the hollow pipe, and the powder sealing head is separated from the hollow pipe.

8. The powder filling mechanism of claim 1, wherein a powder stirring assembly is arranged on the powder box; the powder stirring assembly comprises:

the powder stirring motor is fixedly arranged on the box body of the powder box;

the powder stirring shaft comprises a shaft body and a plurality of blades arranged on the shaft body;

the blades arranged along the axial direction of the shaft body are mutually spaced; the blades arranged along the radial direction of the shaft body are mutually vertical; the powder stirring motor is in transmission connection with the shaft body and drives the shaft body to rotate.

9. The powder filling mechanism of claim 4, wherein the frame is further provided with a position sensor for sensing the position of the powder outlet in the hollow pipe, and the position sensor is mounted on the frame and positioned at one side of the third mounting plate.

10. The powder filling mechanism of any one of claims 1 to 9, further comprising a limiting assembly, the limiting assembly comprising:

the limiting screw is coaxially connected with the chain wheel and is vertically arranged at the top of the rack;

the second motor is arranged at the top of the rack and is in transmission connection with the limit screw through a third chain so as to drive the limit screw to rotate, and therefore the limit screw is driven to move up and down.