TWI587966B - Wire conveying apparatus with adjustable nozzles - Google Patents

Description

Wire feeding device with adjustable nozzle

The invention relates to a wire feeding device, in particular to a wire feeding device capable of conveying a shielding gas during a wire feeding process and capable of adjusting the length of the conveying pipe.

Press, the wire feeding device is used to transport fine wires for repair welding machines, welding machines or machines that are used to repair precision objects. In recent years, with the advent of 3D printers and rapid development, not only has 3D printing technology become more popular, but also materials or wire feeders related to 3D printing have become the focus of research and development or improvement of related companies. Because the existing wire feeding device is bulky, it is difficult to be integrated into the working machine. In addition, if the stability or accuracy of the wire feeding is insufficient, the welding product will be greatly affected and defective.

In order to improve the above-mentioned deficiencies, the Republic of China Patent Publication No. I429575 discloses "a wire feeding roller mechanism" which is provided with a wire roller group and a driving device on the upper and lower sides of the machine base, and is arranged in front of the wire feeding roller group. There is a cylinder slide table, and the vacuum wire feeding device is placed on the cylinder slide table, thereby driving the roller group to convey the wire synchronously through the driving device of the toothed belt pulley group, and the cylinder slide table is synchronously moved, when the wire is smoothly delivered. When the cylinder slide is returned, the roller group holds the wire and uses the vacuum suction to help the wire to maintain straight and stable delivery, so as to achieve the effect of accurately and stably conveying the wire.

The Republic of China Announcement No. M415014 discloses a "portable wire feeding mechanism" which includes a power unit, a driving roller, a wire feeding roller, a pressing roller and a pressure lever handle, and a pressure lever handle through a pressure rod and The arm is connected with the pressing roller, and a sleeve is formed as an inlet nozzle and an outlet nozzle on both sides of the connection between the pressing roller and the wire feeding roller, whereby when the power device drives the driving roller to rotate, the driving roller drives the sending The wire roller rotates, so that the welding wire passes through the wire guide groove provided above the wire feeding roller and the pressing roller, and the effect of adjusting the wire conveying speed can be achieved with a simple structure.

Japanese Laid-Open Patent Publication No. 2003-001421 discloses a "welding wire feeder for a welding machine" which is provided with a first rotation center axis, a second rotation center axis, and a third rotation center axis, which are wound around a first rotation center axis. a wire material, a second rotating central shaft is provided with a driving wheel, a third rotating central shaft is provided with a driven wheel, and the driven wheel is disposed on the lever member, and the lever member is disposed on the mounting bracket, thereby screwing the lever member through the bolt, The driving wheel is brought into contact with the driven wheel, and the wire of the first rotating shaft is passed through the guiding hole and the groove of the driving wheel, and then the nozzle is passed out to prevent the loose and drooping wire from slipping by the anti-slip portion of the driving wheel.

However, although the above conventional case can achieve the effect of preventing the wire from slipping during the conveying process and accurately and stably conveying the wire, the conventional wire feeding device cannot be directly installed with the nozzle or adjust the length of the conveying pipe according to the work demand, and has Inconvenient in assembly and use, the wire feeding device does not have a shielding gas. Therefore, when the wire is subjected to metal printing or welding, the molten metal is easily affected by oxygen during the processing to cause oxidation.

In addition, the Republic of China Announcement No. I225435 discloses a "welding wire feeding device" which forms a wire feeding path between a wire storage container and a welding torch, and sets a plurality of wire feedings in the path. a unit, wherein one of the wire feeding units is provided with a driving source, and a driving force for driving the wire feeding unit can be generated, and the driving force is transmitted to the welding wire by the torque limiter, thereby making the wire In the acceleration or deceleration state, the steady metal wire feeding can be maintained, and the metal wire can be prevented from being bent, and the inert gas can be sprayed toward the welded body by the gas cylinder to block and protect the welded portion. However, the above conventional wire feeding device cannot be directly installed with the nozzle, and the length of the conveying pipe cannot be adjusted according to the work demand, and the assembly and use are inconvenient.

In view of the fact that the conventional wire feeding device cannot directly set the nozzle, and the length of the conveying pipe cannot be adjusted according to the work demand, and there is no setting of the shielding gas, there is still room for improvement.

Therefore, the object of the present invention is to form a groove which can be directly provided to the nozzle through the outlet member, and to advance the conveying pipe by pressing the pressing member, so that the wire feeding device can be easily integrated into the working machine in each field. And can adjust the length of the conveying pipe according to the work demand.

Another object of the present invention is to provide an air hole through the nozzle and to connect the outlet member to the gas cylinder so that the inert gas can be transported from the air hole to prevent the processing member from being oxidized by contact with oxygen.

In order to achieve the above object, the present invention provides a wire feeding device with an adjustable nozzle, which comprises: a base; a fixing seat, which is locked on the base; and a pressing mechanism, the pressing mechanism comprises: a pressure seat, one end of the pressurizing seat is pivotally connected to the base, and the other end is provided with a pressing rod; an elastic member disposed between the fixing seat and the pressing seat; and a passive wheel The motor is disposed on the base and defines a shaft portion; a driving wheel is disposed on the base and pivotally connected to the shaft portion of the motor, so that the driving wheel is in contact with the passive wheel And a slot is disposed on the driving wheel; an inlet member is locked to the base and has a through hole for transmitting the wire between the driving wheel and the driven wheel; and an outlet member is locked The base is provided with a hole corresponding to the pressing rod above the outlet member, and a groove is formed inside the outlet member, the groove is provided with a perforation and a passage for conveying gas; and a conveying mechanism comprises: a pipe member which forms a hollow pipe body and is provided in a groove of the outlet member And a protrusion is arranged at one end of the pipe member, and a through hole corresponding to the through hole of the outlet member is formed inside, and at least one through hole is formed around the through hole; a joint having a through hole and being sleeved a collet of the pipe member; a collet, the collet is disposed between the joint and the pipe member, and the collet has a through hole, and a plurality of notches are formed at the pinch end of the collet; a metal ring is sleeved on the a collet, and is provided between the protruding post and the clamping end; a pressing member having a through hole for being inserted into the tubular member; and an elastic member disposed on the pressing member Between the pipe members; a cover head for sleeved on the pipe member and having an outlet; and a conveying pipe sequentially passing through the through hole of the outlet member, the through hole of the pipe member, the through hole of the joint, and the outlet And being clamped to the clamp end of the collet; and at least one idler wheel disposed on the base for guiding the path of the wire conveyance.

Based on the above, the conveying mechanism can loosen the pinch end of the conveying pipe by pressing the pressing member, and push the conveying pipe to a certain distance, and clamp the clamping end again when releasing the pressing piece. In the conveying pipe, the length of the conveying pipe is adjusted, and the wire is guided through the idler wheel and the inlet member, and the pressing rod of the pressing seat is locked to the hole of the outlet member, and is adjusted according to the thickness of the wire. The tightness of the pressure bar lock causes the wire clamp to be placed between the slot of the driving wheel and the driven wheel, and is passed through the conveying pipe to the outlet of the hood head, thereby driving the driving wheel through the motor and driving the driven wheel The wire is continuously and stably transported for processing, and at the same time as the wire is conveyed, the inert gas can be transported into the air hole by the passage of the outlet member and sent out by the outlet of the cover head to prevent the molten metal from being affected by oxygen during the processing. .

For a more complete disclosure of the technical content of the object of the present invention, the following is a detailed description, and please refer to the drawings and drawings.

First, referring to FIG. 1 and in conjunction with FIG. 2, the wire feeding device 1 includes a base 10, a fixing base 11, a pressing mechanism 12, a motor 13, a driving wheel 14, and an inlet member 15. An outlet member 16, a conveying mechanism 17, and at least one idler pulley 18; the fixing base 11 is locked to the base 10, and the pressing mechanism 12 includes a pressing seat 121, an elastic member 122 and a driven wheel 123. Wherein, one end of the pressing seat 121 is pivotally connected to the base 10, and the other end is provided with a pressing rod 124. Preferably, the pressing seat 121 is provided with an opening 1211 through which the pressing rod 124 is inserted, and The pressing rod 124 is a wing screw. The elastic member 122 is disposed between the fixing base 11 and the pressing seat 121. Preferably, the elastic member 122 is a spring, and the driven wheel 123 is pivoted to the pressing seat 121. The motor 13 is disposed on the base 10 and defines a shaft portion 131. The driving wheel 14 is disposed on the base 10 and pivotally connected to the shaft portion 131 of the motor 13, so that the driving wheel 14 is in contact with the driven wheel 123, and A slot 141 is defined in the driving wheel 14; the inlet member 15 is locked to the base 10 and has a through hole 151 for transmitting a wire between the driving wheel 14 and the driven wheel 123; 16 is locked on the base 10, and a hole 161 corresponding to the pressing rod 124 is disposed above the outlet member 16, and a groove 162 is formed in the outlet member 16. The groove 162 is provided with a through hole 163 and a conveying hole A gas passage 164, preferably located in the passage 164, is provided with a quick joint 19 for connecting a gas cylinder.

The conveying mechanism 17 comprises a pipe member 171, a joint 172, a collet 173, a metal ring 174, a pressing member 175, an elastic member 176, a cover 177 and a conveying pipe 178 (refer to Fig. 3). The tube 171 forms a hollow tube body and is sleeved in the groove 162 of the outlet member 16, and a protrusion 1711 is disposed at one end of the tube member 171, and a corresponding hole 163 of the outlet member 16 is formed inside the tube member 171. The hole 1712 is provided with at least one through hole 1713 around the through hole 1712, and an insert 1714 is formed inside the pipe member 171. The joint 172 has a through hole 1721 and is sleeved on the boss 1711 of the pipe member 171. The collet 173 is disposed between the joint 172 and the tubular member 171, and the collet 173 has a through hole 1731, and a plurality of notches 1733 are formed at the pinch end 1732 of the collet 173. The metal ring 174 is sleeved on the collet 173. And the column protruding from the pipe 171 The pressing member 175 has a through hole 1751 and is disposed in the tube member 171. The elastic member 176 is disposed between the pressing member 175 and the tube member 171. Preferably, the pressing member 175 is disposed between the pressing member 175 and the tube member 171. The elastic member 176 is a spring. The cover 177 is sleeved on the tubular member 171 and has an outlet 1771. Preferably, the tubular member 171 and the cover 177 are respectively provided with screw holes 1715 (1772) corresponding to each other. The screw hole 1715 of the pipe member 171 can be inserted into the screw hole 1715 of the cover member 177 by a screw 179. The pipe 178 is sequentially disposed through the through hole 163 of the outlet member 16 and the through hole 1712 of the pipe member 171. The through hole 1721 of the joint 172 and the outlet 1771 of the cover 177 are clamped to the pinch end 1732 of the chuck 173. Preferably, the conveying pipe 178 can transport the wire of 0.5 mm or less; and the idler 18 is disposed at the base. The seat 10 is used to guide the path of the wire feeding.

Next, as shown in FIGS. 1 to 4, the elastic member 122 is disposed between the fixing base 11 and the pressing seat 121, and the passive wheel 123 is pivoted to the pressing seat 121 through the pivoting member 125. And the pressing seat 121 is pivoted on the base 10 to enable the pressing seat 121 to pivot on the base 10, and the base 10 is provided with a motor 13, an inlet member 15, an outlet member 16, and a plurality of idlers. 18, the driving wheel 14 is pivotally disposed on the shaft portion 131 of the motor 13 and is in contact with the driven wheel 123, and the conveying mechanism 17 places the pressing member 175 which is sleeved with the elastic member 176 in the pipe member 171, and presses The clamping member 175 is placed on the insert 1714 of the tubular member 171, and the collet 173 having the metal ring 174 is placed between the joint 172 and the tubular member 171, so that the two ends of the metal ring 174 are respectively abutted against the clamp 173. Between the end 1732 and the boss 1711 of the tube 171, and the cover 177 is sleeved on the tube 171, so as to thread the shank 177 by the screw 179 After 1772, the screw hole 1715 of the pipe member 171 is locked, and the outlet 1771 of the cover head 177, the through hole 1721 of the joint 172, the through hole 1712 of the pipe member 171, the through hole 163 of the outlet member 16, and the through hole 151 of the inlet member 15 are mutually connected. Correspondingly, the conveying pipe 178 is pierced, and the conveying pipe 178 is clamped by the clamping end 1732 of the chuck 173, and the pipe member 171 of the conveying mechanism 17 is sleeved on the groove 162 of the outlet member 16 to constitute a wire feeding device. 1 (as shown in Figure 5).

Next, referring to FIG. 6, a schematic diagram of the adjustment of the delivery tube of the present invention is performed. When the delivery tube 178 is placed through the compression member 175 and the collet 173 and is passed through the through hole 1721 of the joint 172 and the outlet 1771 of the cover 177. After that, the clamping head 173 can be pushed against by pressing the pressing member 175 to abut the clamping end 1732 against the joint 172 and the metal ring 174 (as indicated by the arrow direction in FIG. 6). At this time, the chuck The pinch end 1732 of the 173 is expanded outward along the notch 1733 by pressing (refer to Fig. 7), so that the conveying pipe 178 is advanced toward the outlet 1771 by a certain distance (as indicated by the arrow direction in Fig. 7), and When the pressing member 175 is released, the chuck 173 is returned to the original position due to the elastic restoring force of the elastic member 176, and the clamping end 1732 is returned to the state of the clamping conveying tube 178, and can be conveyed by repeatedly pressing the pressing member 175. The tube 178 is adjusted to the length required for the operation, and after the adjustment is completed, the tube 171 of the conveying mechanism 17 is placed in the groove 1 of the outlet member 16. 62 internal fixation (as shown in Figure 8).

Please refer to FIG. 9 for a schematic view of the use of the present invention. In use, the wire 2 is pulled out by the reel 3, passed through the idler 18 and penetrates through the through hole 151 of the inlet member 15, so that the wire 2 can be guided. In the predetermined path, then placed in the slot 141 of the driving wheel 14 and penetrates into the conveying pipe 178. At this time, the pressing seat 121 is pivoted on the base 10 while compressing the elastic member 122 so that the driven wheel 123 can be located just right. The position of the driving wheel 14 is contacted, and the wire 2 is sandwiched between the driving wheel 14 and the driven wheel 123, and after the pressing seat 121 is adjusted to the appropriate position according to the thickness of the wire 2, the pressing rod 124 is locked to the outlet piece. 16 hole slot 161 (shown in the direction of the arrow in Figure 9), to complete the installation of the wire 2, and then a gas cylinder 4 containing an inert gas (such as argon, argon, carbon dioxide, carbon dioxide, nitrogen, etc.) The assembly is connected to the quick connector 19. Thereby, when the motor 13 drives the shaft portion 131 to rotate the driving wheel 14 while driving the driven wheel 123 to rotate synchronously, the wire 2 located between the driving groove 14 and the driven wheel 123 is transferred to the conveying pipe 178 for subsequent processing. Using (in conjunction with Figure 10), the idler 18 of the base 10 and the perforations 151 of the inlet member 15 can assist in guiding the wire 2, avoiding the wire 2 from deflecting the path during transport, and simultaneously transporting the wire 2 The gas cylinder 4 coupled to the quick joint 19 can feed the inert gas into the air hole 1713 of the pipe member 171 through the passage 164 of the outlet member 16, and then be sent out through the outlet 1771 of the cover head 177, so that the wire 2 can be inert when performing the machining operation. The shielding of the gas prevents the processing part from causing oxidation of the molten metal by oxygen during the processing.

Therefore, the wire feeding device of the present invention can obviously achieve the following effects: 1. The wire feeding device of the present invention can adjust the contact position of the passive wheel and the driving wheel according to the thickness of the wire through the pressing mechanism, and is provided at the base. The lead wire is routed to the idler wheel and the inlet member of the correct path, so that the wire is not easy to be slack when being transported by the reel under the driving of the motor, and can stably transmit without offset, and can control the motor rotation speed to adjust the wire conveying speed, and further, the conveying pipe is available Deliver fine lines of 0.5mm or less to improve the precision of repair. 2. The wire feeding device of the present invention can be used for the user to wear or replace the wire and maintain the driving wheel and the passive wheel when the pressing seat is opened, and can set the wire grooves of different widths in the plurality of driving wheels, so that The drive wheel is replaced by the thickness of the wire to improve the convenience of the wire feeder. 3. The outlet part of the wire feeding device of the invention can be connected with the gas cylinder supporting the inert gas, so as to facilitate the wire transportation, the inert gas is sent into the air hole of the pipe member by the gas cylinder and sent out by the outlet of the cover head to avoid the workpiece. The molten metal is affected by oxygen during the processing to cause oxidation. 4. The wire feeding device of the invention has the advantages of simple structure and small volume, is not only convenient for handling and assembly, but also can be combined with working machines in various fields to increase practicability. 5. The conveying mechanism of the wire feeding device of the invention can push the pressing piece to push the conveying pipe to a certain distance, and the length of the conveying pipe can be easily adjusted, and the conveying pipe can be fixed by the clamping end clamp. So that the wire feeder can meet different work requirements.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and variations and modifications thereof are not included in the scope of the present invention.

In summary, the present invention has indeed broken through the tradition and has improved and innovative creation content and can be specifically implemented, which should meet the statutory requirements of the invention patent, and file a patent application according to law, and invite the examination committee of the bureau to grant legal patent rights. Creation, to the sense of virtue.

this invention:

1‧‧‧Wire delivery device

10‧‧‧ Pedestal

11‧‧‧ Fixed seat

12‧‧‧ Pressurizing mechanism

121‧‧‧ Pressing seat

1211‧‧‧Opening

122‧‧‧Flexible parts

123‧‧‧passive wheel

124‧‧‧Pressure rod

125‧‧‧ pivotal parts

13‧‧‧Motor

131‧‧‧Axis

14‧‧‧Drive wheel

141‧‧‧ wire trough

15‧‧‧Accessory

151‧‧‧Perforation

16‧‧‧Exports

161‧‧‧ hole slot

162‧‧‧ Groove

163‧‧‧Perforation

164‧‧‧ channel

17‧‧‧Transportation agency

171‧‧‧ Pipe fittings

1711‧‧‧Bump

1712‧‧‧through hole

1713‧‧‧ stomata

1714‧‧‧Inlay

1715‧‧‧ screw hole

172‧‧‧Connector

1721‧‧‧through hole

173‧‧‧ chuck

1731‧‧‧through hole

1732‧‧‧ pin terminal

1733‧‧‧ gap

174‧‧‧Metal ring

175‧‧‧ Pressure parts

1751‧‧‧through hole

176‧‧‧Flexible parts

177‧‧‧ hood

1771‧‧‧Export

1772‧‧‧ screw holes

178‧‧‧ delivery tube

179‧‧‧Spiral firmware

18‧‧‧ idler

19‧‧‧Quick joint

2‧‧‧Wire

3‧‧‧ reel

4‧‧‧ gas cylinder

Figure 1 is a perspective exploded view of the present invention. Figure 2 is a perspective exploded view of another angle of the present invention. Figure 3 is a perspective exploded view of the transport mechanism of the present invention. Figure 4 is a cross-sectional view of the present invention. Figure 5 is a perspective view of the present invention. Figures 6 to 7 are schematic views of the adjustment of the delivery tube of the present invention. Figure 8 is a schematic view of the transport mechanism of the present invention mounted on an outlet member. Figures 9 through 10 are schematic views of the use of the present invention.

1‧‧‧Wire delivery device

10‧‧‧ Pedestal

11‧‧‧ Fixed seat

12‧‧‧ Pressurizing mechanism

121‧‧‧ Pressing seat

1211‧‧‧Opening

122‧‧‧Flexible parts

123‧‧‧passive wheel

124‧‧‧Pressure rod

125‧‧‧ pivotal parts

13‧‧‧Motor

131‧‧‧Axis

14‧‧‧Drive wheel

141‧‧‧ wire trough

15‧‧‧Accessory

151‧‧‧Perforation

16‧‧‧Exports

161‧‧‧ hole slot

162‧‧‧ Groove

164‧‧‧ channel

17‧‧‧Transportation agency

171‧‧‧ Pipe fittings

1713‧‧‧ stomata

1715‧‧‧ screw hole

172‧‧‧Connector

1721‧‧‧through hole

177‧‧‧ hood

1771‧‧‧Export

1772‧‧‧ screw holes

178‧‧‧ delivery tube

179‧‧‧Spiral firmware

18‧‧‧ idler

19‧‧‧Quick joint

Claims (5)

A wire feeding device with an adjustable nozzle, comprising: a base; a fixing base locked to the base; and a pressing mechanism comprising: a pressing seat, the end of the pressing seat Connected to the base, the other end is provided with a pressing rod; an elastic member, the elastic member is disposed between the fixing seat and the pressing seat; and a passive wheel is pivoted on the pressing seat; a motor Provided on the base and forming a shaft portion; a driving wheel is disposed on the base and pivotally connected to the shaft portion of the motor, so that the driving wheel is in a position in contact with the driven wheel, and the driving wheel is a wire slot is disposed on the base; an inlet member is locked to the base and has a through hole for transmitting a wire between the driving wheel and the driven wheel; and an outlet member is locked on the base And a hole corresponding to the pressing rod is disposed above the outlet member, and a groove is formed in the outlet member, the groove is provided with a through hole and a passage for conveying gas; and a conveying mechanism comprises: a pipe member, the pipe member is formed into a hollow pipe body, and is provided in a groove of the outlet member, located at The pipe member is provided with a screw hole, and a protrusion is arranged at one end of the pipe member, and a pair of through holes for perforating the outlet member are formed therein, and at least one through hole is formed around the through hole; a joint, the joint The utility model has a through hole, and is provided with a protruding post sleeved on the tubular member; a chuck is disposed between the joint and the tubular member, and the collet has a through hole and is disposed at the clamping end of the collet Forming a plurality of notches; a metal ring is sleeved on the collet and is provided between the stud and the pinch end; a pressing member having a through hole for being inserted into the tube member; an elastic member disposed between the pressing member and the tube member; and a cover head for being sleeved on the tube member The pipe member has an outlet and a screw hole, and can be sequentially inserted through the screw head and the screw hole of the pipe member to be locked by a screw; and a conveying pipe is sequentially inserted through the through hole of the outlet member. The through hole of the pipe member, the through hole of the joint and the outlet are clamped to the pinch end of the collet; and at least one idler wheel is disposed on the base for guiding the path of the wire conveyance. The wire feeding device with an adjustable nozzle according to claim 1, wherein the elastic member is a spring. The wire feeding device with an adjustable nozzle according to claim 1, wherein the pressing rod is a wing screw and is locked to the hole of the outlet member. The wire feeding device with an adjustable nozzle according to claim 1, wherein the channel is provided with a quick connector for connecting a gas cylinder. The wire feeding device with an adjustable nozzle according to claim 1, wherein the conveying pipe can convey a wire of 0.5 mm or less.