Transmission device of wire feeding wheel of wire feeder

Abstract

The utility model provides a transmission device for wire feeding wheels of a wire feeder, which belongs to the technical field of wire feeders and comprises two driving rods rotating synchronously, wire feeding wheels are arranged on the two driving rods, two wire pressing wheels are arranged above the two wire feeding wheels, driving gears are arranged on the driving rods, driven rods are further arranged above the driving rods, driven gears are arranged on the driven rods, and the driven gears are arranged on the driven rods. A supporting block is arranged below the first belt pulley, a second belt pulley is arranged at the bottom of the supporting block through a first telescopic assembly, a second telescopic assembly is arranged on the side edge of the supporting block, and a third belt pulley is arranged at the end of the second telescopic assembly; the axis of the side edge of the second belt pulley is connected with the side edge of the wire pressing wheel; according to the utility model, the wire feeding and pressing wheel can always abut against the upper part of the wire feeding wheel, and the wire pressing wheel cannot be stuck and slip all the time, so that the wire pressing wheel can be prevented from damaging a welding wire.

Description

Technical Field

[0001] The utility model relates to the technical field of wire feeding machine equipment, in particular to a transmission device of a wire feeding wheel of a wire feeding machine. Background Art

[0002] The wire feeder is a device that drives the welding wire to the welding gun. It is located between the welding power source and the workpiece, but is generally closer to the workpiece to reduce wire feeding resistance and improve wire feeding stability.

[0003] In the prior art, the wire feeding mechanism in the wire feeder is generally designed with two synchronously rotating wire feeding wheels and two wire pressing wheels to achieve stable transportation of the welding wire, such as a new dual-drive wire feeder disclosed in authorization announcement number CN220698616U.

[0004] Although the above equipment can transport welding wire, the wire pressing wheel relies on the friction between the wire feeding wheel and the wire feeding wheel to rotate during the rotation of the wire feeding wheel. The wire pressing wheel can easily slip above the wire feeding wheel when the wire feeding wheel rotates, which can easily damage the welding wire and affect the subsequent welding effect. Utility Model Content

[0005] In view of this, the utility model provides a transmission device for the wire feeding wheel of a wire feeder. The utility model can enable the wire pressing wheel to always be in contact with the wire feeding wheel and the wire pressing wheel will never get stuck or slip, thereby preventing the wire pressing wheel from damaging the welding wire.

[0006] In order to solve the above technical problems, the utility model provides a transmission device for the wire feeding wheel of a wire feeding machine, including two active rods that rotate synchronously, each of which is provided with a wire feeding wheel, and the active rod can drive the wire feeding wheel to rotate, and two wire pressing wheels are provided above the two wire feeding wheels, and a driving gear is provided on the active rod, and the active rod can drive the driving gear to rotate, and a driven rod is also provided above the active rod, and a driven gear is provided on the driven rod, and the driving gear and the driven gear are meshed with each other, and the driving gear can drive the driven gear to rotate, and a first pulley is also provided on the end of the driven rod away from the driven gear, and the driven gear can indirectly drive the first pulley The pulley rotates, and a support block is provided under the first pulley. A second pulley is provided at the bottom of the support block through a first telescopic assembly. The first telescopic assembly can drive the second pulley to move up and down. A second telescopic assembly is provided on the side of the support block. A third pulley is provided at the end of the second telescopic assembly. The second telescopic assembly can drive the third pulley to move left and right. The first pulley, the second pulley and the third pulley are connected by a belt. The first pulley, the second pulley and the third pulley can rotate synchronously. The side axis of the second pulley is connected to the side of the wire pressing wheel, and the second pulley can drive the wire pressing wheel to rotate.

[0007] The first telescopic assembly or the second telescopic assembly includes a fixed rod arranged at the bottom or side of the support block, a slide groove is provided in the fixed rod, the slide groove is arranged at one end of the fixed rod away from the support block, a slide rod is provided in the slide groove, the slide rod can move up and down in the slide groove, a support seat is provided at the end of the slide rod, the slide rod can drive the support seat to move back and forth, a second pulley or a third pulley is provided on the support seat, the support seat can provide support for the second pulley or the third pulley. There is also a spring in the slide groove, one end of the spring is connected to the end of the slide rod, and the other end of the spring is connected to the end of the slide groove, and the spring can always push the slide rod to the end away from the support block.

[0008] The slide groove and the slide rod are both T-shaped structures, and the slide rod will not fall off from the slide groove during the sliding process.

[0009] The cross sections of the chute and the slide bar are both polygonal structures, so the slide bar will not rotate in the chute during the sliding process.

[0010] The thrust of the spring on the first telescopic assembly is greater than the thrust of the spring on the second telescopic assembly. When force is applied to the second pulley, the second telescopic assembly will push the third pulley to move left and right.

[0011] A force-applying piece is provided on the side of the wire pressing wheel, which facilitates applying force to the wire pressing wheel.

[0012] The force applying member is a force applying rod arranged on the side of the wire pressing wheel, and the wire pressing wheel can be driven to move up and down by the force applying rod.

[0013] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:

[0014] 1. Through the driven gear, the driving gear and the belt, when the wire feeding wheel rotates, the wire feeding wheel can indirectly drive the wire pressing wheel and the wire feeding wheel to rotate relative to each other, thereby preventing the wire pressing wheel from slipping, thereby preventing the wire pressing wheel from damaging the welding wire during wire transportation.

[0015] 2. The first telescopic assembly and the second telescopic assembly can provide support for the second pulley and the third pulley, and when driving the second pulley to move up and down, the belt will not fall off from between the first pulley, the second pulley and the third pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a transmission device for a wire feeding wheel of a wire feeding machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the belt transmission structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a cross-sectional view of the first telescopic assembly or the second telescopic assembly of the present invention.

[0019] Description of reference numerals:

[0020] 100, active rod; 101, wire feeding wheel; 102, wire pressing wheel; 103, driven rod;

[0021] 200, driving gear; 201, driven gear; 202, first pulley; 203, support block; 204, second pulley; 205, third pulley;

[0022] 300, first telescopic assembly; 301, fixed rod; 302, slide groove; 303, slide rod; 304, support base; 305, spring;

[0023] 400, second telescopic assembly;

[0024] 500. Force-applying member. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-3 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0026] like Figure 1-3As shown: it includes two synchronously rotating active rods 100, and both active rods 100 are provided with wire feeding wheels 101. When the active rods 100 rotate, they can drive the two wire feeding wheels 101 to rotate synchronously. A driving gear 200 is coaxially provided on the end of the active rod 100 away from the wire feeding wheels 101, and a driven rod 103 is also provided above the active rod 100. A driven gear 201 is coaxially provided on the driven rod 103. The driving gear 200 and the driven gear 201 are meshed with each other. The active rod 100 is The driven rod 103 can be indirectly driven to rotate. A first pulley 202 is provided on the end of the driven rod 103 away from the driven gear 201. The driven rod 103 can drive the first pulley 202 to rotate. A support block 203 is provided below the first pulley 202. The support block 203 is connected to the inside of the wire feeder housing through an external support member. In this embodiment, the support block 203 is set as a cube structure. A first telescopic component 300 is vertically provided at the bottom of the support block 203. The first telescopic component 300 00 is provided with a second pulley 204 at one end away from the support block 203, and the second pulley 204 can move up and down on the first telescopic component 300, and the first telescopic component 300 can always push the second pulley 204 downward, and the side of the support block 203 is also provided with a second telescopic component 400 in the horizontal direction, and the end of the second telescopic component 400 away from the support block 203 is also provided with a third pulley 205, and the third pulley 205 can move left and right on the second telescopic component 400, and the second telescopic component 400 can always push the third pulley 205 to the side away from the support block 203. The first pulley 202, the second pulley 204 and the third pulley 205 are connected by a belt, and the first pulley 202 can synchronously drive the second pulley 204 and the third pulley 205 to rotate through the belt, and the side axis of the second pulley 204 is connected to the side of the wire pressing wheel 102, and when the second pulley 204 rotates, it can drive the wire pressing wheel 102 to rotate.

[0027] When the active rod 100 rotates, it can drive the wire feeding wheel 101 to rotate. The active rod 100 can drive the driven rod 103 to rotate through the driving gear 200 and the driven gear 201. The rotation of the driven rod 103 can drive the first pulley 202 to rotate. When the first pulley 202 rotates, it can indirectly drive the second pulley 204 and the third pulley 205 to rotate synchronously through the belt. The second pulley 204 can drive the wire pressing wheel 102 to rotate. In this way, the wire feeding wheel 101 rotates relative to the wire pressing wheel 102, thereby preventing the wire pressing wheel 102 from slipping during the welding wire transportation, thereby ensuring that the welding wire is normally transported and will not be damaged.

[0028] When replacing the wire feeding wheel 101 or the welding wire, the wire pressing wheel 102 can be lifted upward, and the wire pressing wheel 102 can drive the second pulley 204 to move upward. When the second pulley 204 moves upward, the first telescopic component 300 no longer indirectly pushes the belt. At this time, the second telescopic component 400 can push the third pulley 205 to move toward the end away from the support block 203, so that the belt will not fall off from between the first pulley 202, the second pulley 204 or the third pulley 205.

[0029] like Figure 3 As shown,

[0030] The first telescopic assembly 300 or the second telescopic assembly 400 includes a fixed rod 301 arranged at the bottom or side of the support block 203, and a sliding groove 302 is provided on the end of the fixed rod 301 away from the support block 203. A sliding rod 303 is slidably provided in the sliding groove 302, and the sliding rod 303 can move back and forth in the sliding groove 302. A support seat 304 is provided on the end of the sliding rod 303 away from the support block 203. The support seat 304 is used to provide support for the second pulley 204 or the third pulley 205. The second belt The pulley 204 or the third pulley 205 can rotate on the support seat 304, and a spring 305 is also provided in the slide groove 302. One end of the spring 305 is connected to the end of the slide rod 303, and the other end of the spring 305 is connected to the end of the slide groove 302. The spring 305 can always move the slide rod 303 to the end away from the support block 203; that is, the first telescopic component 300 can always push the second pulley 204 downward, and the second telescopic component 400 can always push the third pulley 205 sideways.

[0031] like Figure 3 As shown,

[0032] The slide groove 302 and the slide rod 303 are both T-shaped structures, that is, the slide rod 303 will not fall out of the slide groove 302 during the sliding process in the slide groove 302, thereby ensuring the normal use and operation of the first telescopic component 300 or the second telescopic component 400.

[0033] like Figure 3 As shown,

[0034] The cross sections of the slide groove 302 and the slide rod 303 are both polygonal structures, that is, the slide rod 303 will not rotate in the slide groove 302 during the sliding process in the slide groove 302, thereby ensuring that the second pulley 204 and the third pulley 205 will not be rotated by the slide rod 303, and the first pulley 202, the second pulley 204 and the third pulley 205 can rotate normally and synchronously.

[0035] like Figure 2 As shown,

[0036] The thrust of the spring 305 on the first telescopic component 300 is greater than the thrust of the spring 305 on the second telescopic component 400, that is, when the second pulley 204 is lifted upward, the second telescopic component 400 can push the third pulley 205 to move sideways, so that the belt will not fall off. When the force on the second pulley 204 is released, the first telescopic component 300 can drive the second pulley 204 to reset, so that the belt can push the third pulley 205 to reset on the second telescopic component 400.

[0037] like Figure 1 As shown,

[0038] A force applying member 500 is provided on the side of the pressing wheel 102, which facilitates applying force to the pressing wheel 102.

[0039] In this embodiment, the force applying member 500 is a force applying rod provided on the side of the pressing wheel 102. The force applying rod is coaxially arranged with the pressing wheel 102. By applying force to the force applying rod, the pressing wheel 102 can be lifted upward, thereby indirectly lifting the second pulley 204 upward.

[0040] Furthermore, the force applying member 500 may also be configured as other structures that facilitate applying force to the pressing wheel 102 .

[0041] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A transmission device for a wire feeding roll of a wire feeding machine, comprising two synchronously rotating active rods (100), each of which is provided with a wire feeding roll (101), and two wire pressing rolls (102) are provided above the two wire feeding rolls (101), characterized in that: The active rod (100) is provided with an active gear (200), a driven rod (103) is further provided above the active rod (100), a driven gear (201) is provided on the driven rod (103), the active gear (200) and the driven gear (201) are meshed with each other, a first pulley (202) is further provided on one end of the driven rod (103) away from the driven gear (201), a support block (203) is provided below the first pulley (202), and the support block A second pulley (204) is provided at the bottom of (203) through a first telescopic component (300), a second telescopic component (400) is provided on the side of the support block (203), a third pulley (205) is provided at the end of the second telescopic component (400), the first pulley (202), the second pulley (204) and the third pulley (205) are connected by a belt, and the side axis of the second pulley (204) is connected to the side of the wire pressing wheel (102).

2. The transmission device of the wire feeding wheel (101) of the wire feeding machine according to claim 1, characterized in that: The first telescopic assembly (300) or the second telescopic assembly (400) comprises a fixed rod (301) arranged at the bottom or side of the support block (203), a slide groove (302) is provided in the fixed rod (301), a slide rod (303) is provided in the slide groove (302), a support seat (304) is provided at the end of the slide rod (303), a second pulley (204) or a third pulley (205) is provided on the support seat (304), a spring (305) is further provided in the slide groove, one end of the spring (305) is connected to the end of the slide rod (303), and the other end of the spring (305) is connected to the end of the slide groove (302).

3. The transmission device of the wire feeding wheel (101) of the wire feeding machine according to claim 2, characterized in that: The sliding groove (302) and the sliding rod (303) are both T-shaped structures.

4. The transmission device of the wire feeding wheel (101) of the wire feeding machine according to claim 3, characterized in that: The cross sections of the sliding groove (302) and the sliding rod (303) are both polygonal structures.

5. The transmission device of the wire feeding wheel (101) of the wire feeding machine according to claim 4, characterized in that: The thrust of the spring (305) on the first telescopic assembly (300) is greater than the thrust of the spring (305) on the second telescopic assembly (400).

6. A transmission device for a wire feeding wheel (101) of a wire feeding machine according to claim 5, characterized in that: A force applying member (500) is provided on the side of the wire pressing wheel (102).

7. A transmission device for a wire feeding wheel (101) of a wire feeding machine according to claim 6, characterized in that: The force applying member (500) is a force applying rod arranged on the side of the wire pressing wheel (102).

Images