CN210579307U

CN210579307U - Powder filling machine

Info

Publication number: CN210579307U
Application number: CN201921643989.2U
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 filling machine, include: the powder guide device comprises a rack, a positioning assembly, a powder box, a guide rod, a first power part, a powder guide assembly, a second power part and a vibration assembly; 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 of micelle with the hollow tube is sealed, 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 follows the leading-in hollow tube of discharge gate with the powder in the powder case. While the vibration of the vibrating assembly leaves no gaps between the powders. When the powder is supplied enough, the channel 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 from leading-in to the air traffic in the powder case, avoids 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 machine

Technical Field

The utility model relates to an electrothermal tube field of making, concretely relates to powder filling machine.

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. The metal tube is used as a shell, a heating wire is axially arranged along the center in the metal tube, magnesia powder with good insulation and heat conduction properties is filled in the gap, and two ends of the tube opening are sealed by colloidal particles. 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 powder filling machine that can not leak powder filling in-process.

The utility model provides a technical scheme that its technical problem adopted provides a powder filling machine, include: a frame; the positioning assembly is arranged on the rack and used for fixing the hollow pipe; 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 arranged above the positioning assembly and used for guiding the 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; the second power part is arranged on the rack and is in transmission connection with the powder guide assembly so as to drive the powder guide assembly to be inserted into or withdrawn from the hollow pipe; and the vibration assembly is connected with the positioning assembly to drive the hollow pipe to vibrate.

The utility model provides a pair of powder filling machine fixes the air traffic control through locating component, and first power portion orders about and draws the stick to elongate the heater in the air traffic control and the micelle is sealed with the end 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. Meanwhile, no gap is left between the powder in the empty tube through the vibration of the vibration assembly. 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 top end of the leading rod is fixedly connected with the first mounting plate, and the tail end of the leading rod is provided with a hanging buckle for hooking and pulling the heating wire; the first power part is in transmission connection with the first mounting plate to drive the first mounting plate to lift, so that the guide rods are driven to lift.

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 closed; and the second power part is in transmission connection with the third mounting plate so as to drive the second mounting plate, the third mounting plate and the fourth mounting plate 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; and the second chain is in transmission connection with the third mounting plate and drives the third mounting plate to lift.

In some embodiments, the powder filler further comprises: the cylinder body of the second lifting cylinder is fixedly arranged on the rack; 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 vertically 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 powder guide component is inserted into the guide rod; the powder sealing head is provided with a guide groove with a narrow upper part and a wide lower part; 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, the positioning assembly comprises: the positioning frame is arranged on the rack; a plurality of positioning grooves which are matched with the appearance of the hollow pipe are formed in the outer side of the positioning frame; the positioning cylinder is fixedly arranged on the positioning frame, and a piston rod of the positioning cylinder is provided with a fixing plate; when a piston rod of the positioning cylinder extends out, the fixing plate is driven to be away from a hollow pipe on the positioning frame; when the piston rod of the positioning cylinder retracts, the fixing plate is driven to abut against the hollow pipe so as to fasten the hollow pipe; the supporting part is movably arranged at the bottom of the positioning frame and used for supporting the hollow pipe.

In some embodiments, the support portion comprises: the supporting plate is arranged below the positioning frame, and one end of the supporting plate is hinged with the positioning frame; the jacking cylinder is respectively hinged with the positioning frame and the other end of the supporting plate; when a piston rod of the jacking cylinder extends out, the non-hinged end of the supporting plate is lifted and abuts against colloidal particles at the tail end of the hollow pipe, and the colloidal particles are pressed into the tail end of the hollow pipe; when the piston rod of the jacking cylinder retracts, the non-hinged end of the supporting plate is pulled down to be far away 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 in 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 vibration assembly comprises: the second motor is arranged on the positioning frame; an eccentric wheel is arranged on a rotating shaft of the second motor; the elastic sheet is arranged on the positioning frame and is positioned on one side of the eccentric wheel.

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 machine according to an embodiment of the present invention;

3 FIG. 35 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. 34 3; 3

FIG. 6 is a rear view of FIG. 5;

FIG. 7 is a partial view of the positioning assembly of FIG. 4;

FIG. 8 is an enlarged partial schematic view of the location B in FIG. 5;

FIG. 9 is an enlarged partial schematic view of the C position of FIG. 6;

FIG. 10 is a partial view of the bin of FIG. 4;

FIG. 11 is a partial view of the powder guide assembly of FIG. 5;

FIG. 12 is a partial view of the powder guide assembly of FIG. 6;

fig. 13 is a schematic structural view of a rod structure according to an embodiment of the present invention;

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

fig. 15 is a perspective view of a second power unit according to an embodiment of the present invention;

fig. 16 is a schematic structural view of the end of a rod structure according to an embodiment of the present invention;

FIG. 17 is an enlarged partial schematic view of the position D (with the outlet closed) in FIG. 5;

fig. 18 is a partially enlarged schematic view of the powder outlet according to the embodiment of the present invention when opened;

fig. 19 is a schematic structural view of the powder sealing sleeve according to the embodiment of the present invention;

FIG. 20 is a partial view of the powder containment sleeve of FIG. 5;

fig. 21 is a partial view of the third power section 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 control panel;

21-a positioning frame; 22-a second drive plate; 23-positioning the cylinder; 24-a fixing plate; 25-a support plate; 26-a jacking cylinder; 27-a spring; 28-a material receiving box;

3-powder box; 31-a box body; 32-box cover; 33-a discharge hole; 34-a powder stirring motor; 35-a shaft body; 36-a blade;

4-leading the rod; 41-a first mounting plate; 42-a first link frame; 43-hanging buckle; 44-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 first drive plate; 525-a powder outlet; 53-powder closing rod; 531-fourth mounting plate; 532-a first lift cylinder; 541-a first motor; 542-a first rotating shaft; 543-a second rotating shaft; 544-a first chain; 545-a second chain; 546-a position sensor;

61-a second lifting cylinder; 62-a fifth mounting plate; 63-sealing a powder sleeve; 631-a guide bar; 632-sealing the powder head; 633-a guide groove; 64-a third link frame;

7-a vibrating assembly; 71-a second motor; 72-eccentric wheel; 73-spring plate;

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

91-a fourth motor; 92-a third shaft; 93-a fourth shaft; 94-fourth 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 to 6, the present embodiment provides a powder filling machine, including: the powder feeding device comprises a frame, a positioning assembly, a powder box 3, a guide rod 4, a first power part 44, a powder guide assembly, a second power part and a vibration assembly 7.

Wherein, the frame is as bearing the main part, can supply each structure installation. 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. A control panel 15 is further arranged on one side of the rack, and the control panel 15 is rotatably arranged on the rack.

Referring to fig. 7 to 9 together, a positioning assembly is provided at the middle of the frame to fix the empty pipe 11. Specifically, the positioning assembly includes a positioning frame 21, a positioning cylinder 23, a fixing plate 24, and a supporting portion.

The positioning frame 21 is fixedly connected with the first slide seat on the slide rail 14, and a plurality of positioning grooves adapted to the shape of the hollow pipe 11 are formed on the outer side (in the direction shown in the figure) of the positioning frame 21. A plurality of empty tubes 11 are installed in each positioning groove in parallel and at intervals at one time by a loading jig (not shown).

The positioning cylinder 23 is mounted on the positioning frame 21. A fixed plate 24 is mounted on the piston rod of the positioning cylinder 23. The hollow tube 11 is located between the positioning frame 21 and the fixing plate 24, that is, the inner side (in the direction shown in the figure) of the hollow tube 11 is abutted against the positioning groove of the positioning frame 21, and the outer side is the fixing plate 24. When the piston rod of the positioning cylinder 23 extends, the fixing plate 24 is driven away from the empty tube 11 on the positioning frame 21, so that the empty tube 11 is released. When the piston rod of the positioning cylinder 23 retracts, the fixing plate 24 is driven to press against the hollow pipe 11, so as to fasten the hollow pipe 11.

With continued reference to fig. 7 to 9, in the present embodiment, the support portion not only supports the hollow tube 11 from below, but also presses the colloidal particles 13 at the end of the heating wire 12 against the end of the hollow tube 11. The support portion includes a support plate 25 and a jacking cylinder 26.

The support plate 25 is disposed below the positioning frame 21 and below the positioning cylinder 23 to avoid interference with the operation of the positioning cylinder 23. The end of the supporting plate 25 far away from the hollow pipe 11 is hinged with the positioning frame 21.

And the jacking cylinder 26 is hinged with the other ends of the positioning frame 21 and the supporting plate 25 respectively, and forms an acute angle with the vertical direction. When the piston rod of the jacking cylinder 26 extends out, the hinged part of the supporting plate 25 and the positioning frame 21 is taken as a rotating shaft, and the non-hinged end of the supporting plate 25 is lifted and abuts against the tail end of the hollow pipe 11 so as to support the hollow pipe 11 or press the rubber particles 13 into the tail end of the hollow pipe 11. When the piston rod of the jacking cylinder 26 is retracted, the non-hinged end of the support plate 25 is pulled down, away from the empty pipe 11. In order to avoid rigid collision with the hollow tube 11, a plurality of springs 27 are further provided at the positions of the support plate 25 corresponding to the ends of the hollow tube 11 to slow down the collision between the support plate 25 and the ends of the hollow tube 11.

Referring to fig. 4, 10 and 11, the powder box 3 contains powder for filling, such as magnesium powder, therein. The powder box 3 comprises a funnel-shaped box body 31 with a wide upper part and a narrow lower part and a box cover 32 hinged with the box body 31. The upper end of the box body 31 is provided with a feed inlet, and the lower end is provided with a discharge outlet 33. By adopting the funnel-shaped structure, the magnesium powder can slide down under the action of gravity.

With continued reference to fig. 10, further, the powder box 3 is provided with a powder-stirring assembly, which includes a powder-stirring motor 34 and a powder-stirring shaft. Specifically, the powder stirring motor 34 is fixedly arranged on the box body 31 of the powder box 3. The powder stirring shaft comprises a shaft body 35 and a plurality of blades 36 arranged on the shaft body 35. Wherein, the blades 36 arranged along the axial direction of the shaft body 35 are spaced from each other; the blades 36 arranged in the radial direction of the shaft body 35 are perpendicular to each other. Like this, dial and realize the transmission through the sprocket chain between powder motor 34's the pivot and the axis body 35 and be connected to order about axis body 35 and rotate, dial the powder axle when the pivoted, blade 36 on the axis body 35 dials the magnesium powder to discharge gate 33.

By adopting the powder stirring shaft with the blade arrangement mode, when the shaft body 35 rotates, one part of magnesium powder is stirred by the blades 36, and the other part of magnesium powder is not stirred because of being positioned at the interval position between the two blades in the axial direction. Therefore, the powder stirring amount of the powder stirring shaft in the embodiment is very uniform and moderate, the powder stirring shaft cannot block the discharge hole 33 due to too much powder stirring, and the slow discharge due to too little powder stirring cannot be caused.

Referring to fig. 12, 13 and 14 together, the guide rod 4 in this embodiment is a solid metal long rod. The top end of the guiding rod 4 is inserted and fixed in the first mounting plate 41, the first mounting plate 41 is fixedly connected with the first connecting frame 42, and the first connecting frame 42 is fixedly connected with the second sliding seat on the sliding rail 14. The tail end of the leading rod 4 is provided with a hanging buckle 43 for hooking and pulling the heating wire 12. The hanging buckle 43 is formed by making a notch with a slope at the end of the guiding rod 4. The hanging buckle 43 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 used to clamp and lift the heater 12.

Referring to fig. 15, a first power unit 44 is disposed on the frame and is in driving connection with the first mounting plate 41 to drive the first mounting plate 41 to move up and down, thereby driving the guide rod 4 to be inserted into or withdrawn from the empty pipe 11. Specifically, the first power portion 44 in the present embodiment is a long stroke cylinder, which is parallel to the slide rail 14. The piston rod of the long-stroke cylinder is fixedly connected with the first connecting frame 42 to drive the first mounting plate 41 to slide up and down along the slide rail 14, and simultaneously drive the guide rod 4 to be inserted into or withdrawn from the hollow pipe 11. In other embodiments, the first power portion 44 may also adopt a screw pair structure, a sprocket chain structure, a pulley structure or a hydraulic driving structure.

Referring to fig. 16 to 18 together, a powder guide assembly for guiding magnesium powder in the powder box 3 into the hollow tube 11. Lead whitewashed subassembly setting in the top of locating component. 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 33 intercommunication of this passageway 521. In this embodiment, the powder guiding component and the guiding rod 4 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. The middle guide rod 51, the powder passing rod 52 and the powder closing rod 53 in the embodiment are all hollow round tubes.

The middle guide rod 51 is sleeved on the guide rod 4 and is positioned between the top end of the guide rod 4 and the hanging buckle 43. 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 3. 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. 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 3 provided with the discharge hole 33. 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 third slide seat on the slide 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 33, and the powder material is discharged from the discharge port 33 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. 18, 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. 17, 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 6 and 15, 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 unit includes a first motor 541 having a sprocket on an output shaft, a first rotating shaft 542 having sprockets at both ends, and a second rotating shaft 543 having sprockets at both ends. The first motor 541 is fixed on the frame. The first rotating shaft 542 is rotatably disposed in the frame, and is in transmission connection with the first rotating shaft 542 through a first chain 544, so as to drive the first rotating shaft 542 to rotate. The second rotating shaft 543 is rotatably disposed in the frame, is located below the first rotating shaft 542, and is in transmission connection with the first rotating shaft 542 through a second chain 545, so as to rotate synchronously with the first rotating shaft 542. The second chain 545 is engaged with the first driving plate 524 of the second connecting frame 523, and drives the first driving plate 524 and the structure thereon to move up and down while the second chain 545 rotates. In other embodiments, the first motor 541 can directly drive the second rotating shaft 543 to rotate, and the first rotating shaft 542 can be eliminated as an intermediate shaft. 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, still further, a position sensor 546 is disposed on the frame for sensing the position of the powder outlet 525 in the empty tube 11. By using the position sensor 546 or setting a height value in the control system in advance, when the powder outlet 525 reaches a preset position in the process that the powder guiding assembly is filled with powder and ascends in the hollow tube 11, the position sensor 546 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. 19 and 20 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 machine further comprises a second lifting cylinder 61, a fifth mounting plate 62 and a plurality of powder sealing sleeves 63. Specifically, the top of the cylinder body of the second lifting cylinder 61 is fixedly connected with a third connecting frame 64 (fig. 6), and the third connecting frame 64 is fixedly connected with the fourth sliding seat. After the height of the second lifting cylinder 61 on the machine frame is determined, the fourth carriage can be locked so that it can no longer slide along the slide rail 14. The piston rod of the second lifting cylinder 61 is fixedly connected with the fifth mounting plate 62. A plurality of powder packing sleeves 63 are vertically inserted in the fifth mounting plate 62. The powder sealing sleeve 63 includes a guide rod 631 and a powder sealing head 632 engaged with the hollow tube 11. The inner diameter of the guide rod 631 is slightly larger than the outer diameter of the powder closing rod 53, and the powder guide assembly is inserted into the guide rod 631. The powder sealing head 632 is provided with a guide groove 633 with a narrow top and a wide bottom. When the piston rod of the second lifting cylinder 61 extends out, the fifth mounting plate 62 and the powder sealing sleeve 63 are driven to approach the empty tube 11 downwards, and the powder sealing head 632 is accurately covered on the top end of the empty tube 11 through the guiding function of the guiding groove 633. When the piston rod of the second lifting cylinder 61 retracts, the fifth mounting plate 62 and the powder sealing sleeve 63 are driven to move upwards away from the empty tube 11, and the powder sealing head 632 is separated from the empty tube 11.

Referring to fig. 4 and 7, the vibration assembly 7 includes a second motor 71 and a spring plate 73. Specifically, the second motor 71 is disposed on one side of the positioning frame 21, and an eccentric wheel 72 is disposed on a rotating shaft of the second motor 71. The elastic sheet 73 is arranged on the positioning frame 21 and is positioned on one side of the eccentric wheel 72. In this embodiment, the elastic piece 73 is perpendicular to the side of the positioning frame 21 where the positioning groove is formed. When the second motor 71 drives the eccentric wheel 72 to rotate, the elastic sheet 73 starts to vibrate, so that the falling speed of the magnesium powder in the channel 521 can be accelerated, and meanwhile, the magnesium powder in the hollow pipe 11 is tighter without leaving a gap.

Still referring to fig. 7, the bottom of the positioning frame 21 is also provided with a material receiving box 28. By providing this receiving box 28, the powder generated during the adjustment and proofing of the machine and the empty tube 11 that is not deformed can be received.

Referring to fig. 5 and 11, the powder filling machine further comprises a limiting assembly 8, wherein the limiting assembly 8 comprises a limiting screw 81 and a third 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 42 or the first mounting plate 41. The third 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.

Referring to fig. 4 and 21, in order to improve the compatibility of the powder filling machine with hollow pipes 11 with different lengths, the powder filling machine further comprises a third power part. The third power part includes a fourth motor 91, a third rotating shaft 92 provided with a sprocket, and a fourth rotating shaft 93 provided with a sprocket. The fourth motor 91 is in transmission connection with a third rotating shaft 92, and the third rotating shaft 92 is in transmission connection with a fourth rotating shaft 93 above through a fourth chain 94. The fourth chain 94 is engaged with the second transmission plate 22 on the positioning frame 21, and when the fourth chain 94 rotates, the second transmission plate 22 and the structure thereon can be driven to move up and down, so that the height position of the positioning frame 21 on the frame can be adjusted. The fixed third connecting frame 64 and the cylinder body of the second lifting cylinder 61 can not slide up and down along the slide rail 14 any more. Therefore, if the empty tube 11 is long, the positioning frame 21 can be lowered a little with respect to the third connecting frame 64; if the empty tube 11 is short, the positioning frame 21 can be raised a little.

Preferably, the first motor 541, the second motor 71, the third motor 82, the fourth motor 91 and the powder-stirring motor 34 in the embodiment all adopt high-precision servo motors.

In summary of the above description of the structure of the powder filling machine, the following description will specifically describe the operation of the powder filling machine:

s1, according to the actual length of the hollow pipe 11, the cylinder body of the third connecting frame 64 or the second lifting cylinder 61 is used as a reference, and the fourth chain 94 is driven by the fourth motor 91, so that the positioning frame 21 is driven to integrally lift, and the position is adjusted to be the most suitable position. The third motor 82 drives the third chain 83 to rotate, so as to drive the limit screw 81 to rotate, and the limit screw 81 is lifted and lowered along the thread on the limit screw 81, so that the highest height of the first connecting frame 42, the first mounting plate 41 and the guide rod 4 which can be lifted is adjusted.

S2, after the adjustment is finished, a piston rod of the jacking air cylinder 26 extends out, and the supporting plate 25 is lifted. A plurality of empty tubes 11 are placed in parallel and at intervals in the positioning grooves of the positioning frame 21 at a time using a loading jig.

S3, the piston rod of the positioning cylinder 23 retracts, and the hollow pipe 11 is tightly fixed in the positioning groove through the fixing plate 24. The piston rod of the second lifting cylinder 61 extends out, and the powder sealing sleeve 63 on the fifth mounting plate 62 is sleeved on the top end of the hollow pipe 11.

S4, in order to prevent the guide rod 4 from penetrating out of the hollow pipe 11 from top to bottom in the following process, the jacking air cylinder 26 retracts the piston rod, and the supporting plate 25 is pulled down to be reset.

S5, the long-stroke air cylinder retracts the piston rod, so that the first connecting frame 42, the first mounting plate 41 and the guide rod 4 are driven to descend together, and the guide rod 4 is inserted into the hollow pipe 11 and penetrates out of the tail end of the hollow pipe 11. Meanwhile, the first motor 541 drives the first chain 544 and the second chain 545 to rotate synchronously, and when the second chain 545 rotates, the first transmission plate 524 drives the second connecting frame 523, the second mounting plate 514, the middle guide rod 51 with one end fixed to the second mounting plate 514, the third mounting plate 522, the powder passing rod 52 with one end fixed to the third mounting plate 522, the fourth mounting plate 531, and the powder shutting rod 53 with one end fixed to the fourth mounting plate 531 to descend to the bottom of the hollow pipe 11 (at this time, the powder outlet 525 is still in a closed state).

S6, manually hanging the heating wire 12 on the hanging buckle 43 at the tail end of the leading rod 4.

And S7, extending the piston rod out by the long-stroke cylinder to drive the guide rod 4 to ascend. During the rising process of the guide rod 4, 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 extended to a predetermined position by the rising hook 43.

S8, the piston rod is extended out by the jacking air cylinder 26, the supporting plate 25 is lifted again, and the colloidal particles 13 are pressed below the tail end of the hollow pipe 11 by the supporting plate 25.

S9, in order to avoid obstructing the subsequent vibration of the hollow pipe 11, the positioning cylinder 23 extends the piston rod, and the fixing plate 24 is far away from the hollow pipe 11.

S10, the powder stirring motor 34 drives the powder stirring shaft to rotate, so that magnesium powder in the box body 31 flows into a channel 521 between the powder passing rod 52 and the middle guide rod 51 at a constant speed and uninterruptedly.

S11, the second motor 71 drives the eccentric wheel 72 to rotate, and drives the elastic sheet 73 to start vibrating, so that each structure is driven to slightly vibrate, and the effects of increasing the falling speed of magnesium powder, preventing the channel 521 from being blocked and reducing the gap in the hollow pipe 11 are achieved.

S12, 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.

And S13, then, the first motor 541 drives the first chain 544 and the second chain 545 to synchronously rotate, and when the second chain 545 rotates, the first transmission plate 524 drives the second connecting frame 523, the second mounting plate 514, the middle guide rod 51 with one end fixed to the second mounting plate 514, the third mounting plate 522, the powder passing rod 52 with one end fixed to the third mounting plate 522, the fourth mounting plate 531, and the powder closing rod 53 with one end fixed to the fourth mounting plate 531 to ascend to a specified position together (for example, ascend to the end of the powder passing rod 52 to be flush with the top opening of the hollow pipe 11). During the ascending process, magnesium powder continuously flows into the hollow pipe 11 from the powder outlet 525, and the position of the powder guide component is monitored in real time through the position sensor.

S14, 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.

S15, the first motor 541 continues to drive the middle guide rod 51, the powder passing rod 52, and the powder closing rod 53 to ascend together until the first connecting frame 42 abuts against the limit screw 81, and the first motor 541 stops.

S16, the piston rod is retracted by the positioning cylinder 23, and the fixing plate 24 abuts against the hollow pipe 11 to clamp the hollow pipe 11.

S17, the piston rod of the second lifting cylinder 61 retracts, the powder sealing sleeve 63 ascends, and the hollow pipe 11 is loosened.

S18, the piston rod is extended out by the positioning cylinder 23, and the fixing plate 24 is far away from the hollow pipe 11. The metal pipe filled with the powder is taken down from the positioning frame 21 by using the feeding jig in S2, and is placed at a designated position to flow into the next process.

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

According to the above description, the powder filling machine 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. Meanwhile, no gap is left between the powder in the empty tube through the vibration of the vibration assembly. 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 first drive 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. The hollow pipe is driven to vibrate by the vibration component, so that magnesium powder particles in the hollow pipe are compact; transmit the vibration to the powder case through the frame and lead on the powder subassembly for the jam condition of caking, adhesion can not appear in powder case and the magnesium powder of leading in the powder subassembly.

8. A plurality of positioning grooves are formed in the positioning frame, so that a plurality of hollow pipes can be fed, and the production efficiency is greatly improved; the piston rod of the positioning cylinder is provided with the fixing plate, so that the fixing plate can be matched with the positioning groove to clamp the hollow pipe, and the hollow pipe can be loosened when vibration is needed, so that a good vibration effect can be generated by the hollow pipe; the backup pad is articulated with the locating rack, both can support the air traffic control and support and press the micelle, can dodge again and draw the stick for locating component's structure is more ingenious.

9. The third power part drives the positioning assembly to ascend and descend, after the hollow pipes with different lengths are mounted, a suitable distance is reserved between the top ends of the hollow pipes and the powder sealing heads, and the effect of improving the compatibility of the powder filling machine is achieved.

10. 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 machine, comprising:

a frame;

the positioning assembly is arranged on the rack and used for fixing the hollow pipe;

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 arranged above the positioning assembly and used for guiding the 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;

the second power part is arranged on the rack and is in transmission connection with the powder guide assembly so as to drive the powder guide assembly to be inserted into or withdrawn from the hollow pipe;

and the vibration assembly is connected with the positioning assembly to drive the hollow pipe to vibrate.

2. The powder filling machine as claimed in claim 1, wherein the top end of the guiding rod is fixedly connected with the first mounting plate, and the tail end of the guiding rod is provided with a hanging buckle for hooking and pulling the heating wire; the first power part is in transmission connection with the first mounting plate to drive the first mounting plate to lift, so that the guide rods are driven to lift.

3. The powder filling machine as claimed in claim 1, wherein the powder guide assembly comprises a middle guide 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 closed;

and the second power part is in transmission connection with the third mounting plate so as to drive the second mounting plate, the third mounting plate and the fourth mounting plate to lift together.

4. The powder filling machine as claimed in claim 3, wherein the bosses are further provided with cylindrical platforms corresponding to the inner diameter of the powder closing rods and trapezoidal platforms for guiding the flow direction of the powder; the trapezoidal table is arranged on the cylindrical table.

5. The powder filling machine of claim 3, wherein 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;

and the second chain is in transmission connection with the third mounting plate and drives the third mounting plate to lift.

6. The powder filler as recited in claim 3, further comprising:

the cylinder body of the second lifting cylinder is fixedly arranged on the rack;

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 vertically 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 powder guide component is inserted into the guide rod; the powder sealing head is provided with a guide groove with a narrow upper part and a wide lower part;

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.

7. The powder filler as recited in claim 1, wherein the positioning assembly comprises:

the positioning frame is arranged on the rack; a plurality of positioning grooves which are matched with the appearance of the hollow pipe are formed in the outer side of the positioning frame;

the positioning cylinder is fixedly arranged on the positioning frame, and a piston rod of the positioning cylinder is provided with a fixing plate; when a piston rod of the positioning cylinder extends out, the fixing plate is driven to be away from a hollow pipe on the positioning frame; when the piston rod of the positioning cylinder retracts, the fixing plate is driven to abut against the hollow pipe so as to fasten the hollow pipe;

the supporting part is movably arranged at the bottom of the positioning frame and used for supporting the hollow pipe.

8. The powder filler as recited in claim 7, wherein the support portion comprises:

the supporting plate is arranged below the positioning frame, and one end of the supporting plate is hinged with the positioning frame;

the jacking cylinder is respectively hinged with the positioning frame and the other end of the supporting plate; when a piston rod of the jacking cylinder extends out, the non-hinged end of the supporting plate is lifted and abuts against colloidal particles at the tail end of the hollow pipe, and the colloidal particles are pressed into the tail end of the hollow pipe; when the piston rod of the jacking cylinder retracts, the non-hinged end of the supporting plate is pulled down to be far away from the hollow pipe.

9. The powder filling machine as claimed in claim 1, wherein a powder pulling 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.

10. A powder filling machine as claimed in claim 7 or 8, wherein the vibration assembly comprises:

the second motor is arranged on the positioning frame; an eccentric wheel is arranged on a rotating shaft of the second motor;

the elastic sheet is arranged on the positioning frame and is positioned on one side of the eccentric wheel.