A new type of double wire feeding mechanism

Abstract

The utility model discloses a novel double -line line feeding mechanism, including first line feeding wheel group, second line feeding wheel group and transmission mechanism, first line feeding wheel group and second line feeding wheel group are used for clamping steel wire and conveying, transmission mechanism is used for transmission to first line feeding wheel group and second line feeding wheel group simultaneously, and when transmission mechanism drives first line feeding wheel group and carries out line feeding action, second line feeding wheel group stops line feeding action, and second line feeding wheel group does not need to loosen steel wire, when transmission mechanism drives second line feeding wheel group and carries out line feeding action, first line feeding wheel group stops line feeding action, and first line feeding wheel group does not need to loosen steel wire, transmission mechanism only has single drive device, the utility model discloses when needing to produce the spring of different steel wire, first line feeding wheel group and second line feeding wheel group all do not need to loosen steel wire, guarantee steel wire to be in clamping state, effectively guarantee that steel wire does not run off, and it is favorable to continuous production, secondly, set single drive device, has reduced the cost of machine and is favorable to large -scale production.

Description

Technical Field

[0001] This utility model relates to the field of bag spring production machinery technology, specifically to a novel double-line feeding mechanism. Background Technology

[0002] The double-wire spring head is a commonly used spring production equipment that can produce two different types of steel wire springs.

[0003] To separately feed two sets of steel wires and switch between steel wires used for spring production, a dual-wire feeding mechanism is required. Existing dual-wire feeding mechanisms typically include two sets of feeding rollers, two lifting mechanisms, and a drive unit. The two lifting mechanisms drive the opening and closing of the two sets of feeding rollers to control their feeding action. The drive unit then drives the feeding action of the two sets of feeding rollers through a transmission mechanism.

[0004] However, this structure has a problem: when the control wheel assembly opens, the steel wire will be released. At this time, the steel wire may run out from the designated position of the wheel assembly, which may cause other positions to press on the steel wire when the wheel assembly closes again, resulting in damage to the wheel assembly.

[0005] To address this issue, existing dual-wire feeding mechanisms employ two drive units to independently operate two sets of wire feeding rollers, allowing the rollers to start and stop simultaneously. However, this method requires two drive units, resulting in higher costs. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the present invention aims to provide a novel dual-wire feeding mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A novel dual-wire feeding mechanism includes a first wire feeding wheel set, a second wire feeding wheel set, and a transmission mechanism; The first wire feeding wheel set and the second wire feeding wheel set are used to clamp the steel wire for conveying, respectively. The transmission mechanism is used to drive the first wire feeding wheel group and the second wire feeding wheel group. When the transmission mechanism drives the first wire feeding wheel group to perform wire feeding, the second wire feeding wheel group stops performing wire feeding, and the second wire feeding wheel group does not need to release the steel wire. When the transmission mechanism drives the second wire feeding wheel group to perform wire feeding, the first wire feeding wheel group stops performing wire feeding, and the first wire feeding wheel group does not need to release the steel wire. The transmission mechanism has one and only a single drive unit.

[0008] Furthermore, the first wire feeding wheel set includes two opposing first wire feeding wheels for clamping and feeding wire, and the second wire feeding wheel set includes two opposing second wire feeding wheels for clamping and feeding wire. The first and second wire feeding wheel sets also include rotating shafts and bushings. The two rotating shafts are respectively connected to the two first wire feeding wheels, and the two bushings are respectively connected to the two second wire feeding wheels. The two rotating shafts pass through the two bushings. The transmission mechanism drives the two rotating shafts and the two bushings to rotate, thereby driving the first and second wire feeding wheel sets to feed wire. When the first wire feeding wheel set performs the wire feeding action, the two first wire feeding wheels rotate in opposite directions. When the second wire feeding wheel set performs the wire feeding action, the two second wire feeding wheels rotate in opposite directions.

[0009] Furthermore, the transmission mechanism includes a first transmission mechanism, a second transmission mechanism, and a clutch mechanism. The clutch mechanism is connected to the drive device. The first transmission mechanism is connected to the first wire feeding wheel assembly, and the second transmission mechanism is connected to the second wire feeding wheel assembly. The clutch mechanism cooperates with the first transmission mechanism and the second transmission mechanism respectively so that when the first wire feeding wheel assembly performs a wire feeding action, the second wire feeding wheel assembly stops performing a wire feeding action, and similarly, when the second wire feeding wheel assembly performs a wire feeding action, the first wire feeding wheel assembly stops performing a wire feeding action.

[0010] Furthermore, the transmission mechanism also includes a drive wheel assembly, a drive belt, a drive shaft, a first optional shaft, and a second optional shaft. The drive wheel assembly is connected to the drive device via the drive belt. The rotation of the drive wheel assembly drives the drive shaft to rotate. The drive shaft is connected to the clutch mechanism. The clutch mechanism is connected to the first optional shaft and the second optional shaft respectively, so that the clutch mechanism can select to transmit kinetic energy to the first optional shaft or the second optional shaft. The first optional shaft is connected to the first transmission mechanism, and the second optional shaft is connected to the second transmission mechanism.

[0011] Furthermore, the first transmission mechanism includes a first optional wheel set and a first transmission belt, and the second transmission mechanism includes a second optional wheel set, a second transmission belt and a second transmission gear set. The first optional wheel set is drivenly connected to the first optional shaft, and the second optional wheel set is drivenly connected to the second optional shaft. The first optional wheel set cooperates with the first transmission belt to drively connect the first optional shaft to the first wire feeding wheel set, and the second optional wheel set, the second transmission belt and the second transmission gear set drively connect the second optional shaft to the second wire feeding wheel set.

[0012] Furthermore, when the transmission mechanism is driven in the forward direction, the first wire feeding wheel group performs the wire feeding action, and the second wire feeding wheel group stops the wire feeding action; when the transmission mechanism is driven in the reverse direction, the second wire feeding wheel group performs the wire feeding action, and the first wire feeding wheel group stops the wire feeding action.

[0013] Furthermore, the transmission mechanism includes a first transmission mechanism, a second transmission mechanism, and a one-way bearing. The first transmission mechanism transmits the kinetic energy of the driving device to the first wire feeding wheel assembly, and the second transmission mechanism transmits the kinetic energy of the driving device to the second wire feeding wheel assembly. Both the first and second transmission mechanisms are connected to one-way bearings. When the driving device drives in the forward direction, the first transmission mechanism, with the cooperation of the one-way bearing, transmits the kinetic energy to the first wire feeding wheel assembly, thereby causing the first wire feeding wheel assembly to perform wire feeding action. At this time, the second transmission mechanism, with the cooperation of the one-way bearing, prevents the kinetic energy from being transmitted to the second wire feeding wheel assembly, thereby stopping the wire feeding action of the second wire feeding wheel assembly. Similarly, when the driving device drives in the reverse direction, the second wire feeding wheel assembly performs wire feeding action, and the first wire feeding wheel assembly stops wire feeding action.

[0014] Furthermore, the first transmission mechanism includes a first pulley assembly and a belt. The first pulley assembly and the belt are connected to the drive device for transmission. The first pulley assembly is connected to the first wire feeding wheel assembly through a one-way bearing. When the drive device rotates in the forward direction, the first pulley assembly and the one-way bearing cooperate to drive the first wire feeding wheel assembly to perform wire feeding action. When the drive device rotates in the reverse direction, the first pulley assembly and the one-way bearing cooperate to allow the first pulley assembly to idle so that the first wire feeding wheel assembly does not perform wire feeding action.

[0015] Furthermore, the second transmission mechanism includes a second pulley, a second transmission shaft, and a gear set. The second pulley is connected to the belt drive, and the second pulley is connected to the second transmission shaft through a one-way bearing. The gear set transmits the power of the second transmission shaft to the second wire feeding wheel set to drive the wire feeding action of the second wire feeding wheel set.

[0016] It also includes a lifting mechanism, which is used to drive the opening and closing of the first wire feeding wheel group and the second wire feeding wheel group.

[0017] This utility model has the following beneficial effects: This utility model discloses a novel double-wire feeding mechanism. When producing springs with different steel wires, neither the first wire feeding wheel group nor the second wire feeding wheel group needs to release the steel wire, ensuring that the steel wire is in a clamped state. This effectively prevents the steel wire from deviating and facilitates continuous production. Secondly, the single drive device reduces the cost of the machine and is conducive to large-scale production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of a novel double-wire feeding mechanism according to the present invention; Figure 2 This utility model Figure 1 A three-dimensional structural diagram from another direction in the embodiment; Figure 3 This utility model Figure 1 A cross-sectional view taken along the centerline of the second drive shaft in the embodiment; Figure 4 This utility model Figure 1 A cross-sectional view taken along the center line of the rotation axis in the embodiment; Figure 5 This is a three-dimensional structural schematic diagram of another embodiment of the novel double-wire feeding mechanism of this utility model; Figure 6 for Figure 5 A sectional view taken along the center line of the rotation axis in the embodiment; Figure 7 This is a sectional view showing the alignment of one of the embodiments of the clutch mechanism, drive wheel assembly, drive shaft, first optional shaft, and second optional shaft of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept claimed by the present invention.

[0020] like Figures 1-5 The present invention discloses a novel double-wire feeding mechanism, comprising a first wire feeding wheel group 1, a second wire feeding wheel group 2, and a transmission mechanism 3. The first wire feeding wheel group 1 and the second wire feeding wheel group 2 are used to clamp the steel wire for conveying, respectively. The transmission mechanism 3 is used to simultaneously drive the first wire feeding wheel group 1 and the second wire feeding wheel group 2. When the transmission mechanism 3 drives the first wire feeding wheel group 1 to perform wire feeding, the second wire feeding wheel group 2 stops its wire feeding action, and the second wire feeding wheel group 2 does not need to release the steel wire. When the transmission mechanism 3 drives the second wire feeding wheel group 2 to perform wire feeding, the first wire feeding wheel group 1 stops its wire feeding action, and the first wire feeding wheel group 1 does not need to release the steel wire. The transmission mechanism 3 has one and only a single drive device 33.

[0021] It should be noted that both the first wire feeding wheel group 1 and the second wire feeding wheel group 2 are provided with channels for clamping and cooperating in conveying steel wire.

[0022] It should be noted that the first wire feeding wheel group 1 and the second wire feeding wheel group 2 are arranged in parallel.

[0023] In practical use, this utility model is equipped with a transmission mechanism 3 for a single drive device 33. When the power of the single drive device 33 is transmitted to the first wire feeding wheel group 1 through the transmission mechanism 3, causing the first wire feeding wheel group 1 to feed the steel wire, the second wire feeding wheel group 2 stops feeding the steel wire, and the second wire feeding wheel group 2 does not need to release the steel wire. Similarly, when the transmission mechanism 3 transmits the power of the single drive device 33 to the second wire feeding wheel group 2, causing the second wire feeding wheel group 2 to feed the steel wire, the first wire feeding wheel group 1 stops feeding the steel wire, and the first wire feeding wheel group 1 does not need to release the steel wire.

[0024] Specifically, when the first wire feeding wheel group 1 is in the wire feeding state and the second wire feeding wheel group 2 is in the stopped wire feeding state, and it is necessary to change the steel wire for production, the drive device 33 cooperates with the transmission mechanism 3 to drive the second wire feeding wheel group 2 to feed wire, while the first wire feeding wheel group 1 stops feeding wire.

[0025] The advantages of this utility model are: 1. When it is necessary to produce springs with different steel wires, neither the first wire feeding wheel group nor the second wire feeding wheel group needs to loosen the steel wire, ensuring that the steel wire is in a clamped state, effectively ensuring that the steel wire will not deviate, which is conducive to continuous production; 2. Setting up a single drive device reduces the cost of the machine and is conducive to large-scale production.

[0026] Preferably, the first wire feeding wheel group 1 includes two oppositely arranged first wire feeding wheels 11 for clamping and feeding wire, and the second wire feeding wheel group 2 includes two oppositely arranged second wire feeding wheels 21 for clamping and feeding wire. The first wire feeding wheel group 1 and the second wire feeding wheel group 2 also include a rotating shaft 12 and a bushing 22. The two rotating shafts 12 are respectively connected to the two first wire feeding wheels 11, and the two bushings 22 are respectively connected to the two second wire feeding wheels 21. The two rotating shafts 12 pass through the two bushings 22. The transmission mechanism 3 drives the first wire feeding wheel group 1 and the second wire feeding wheel group 2 to feed wire by driving the two rotating shafts 12 and the two bushings 22 to rotate. When the first wire feeding wheel group 1 performs the wire feeding action, the two first wire feeding wheels 11 rotate in opposite directions. When the second wire feeding wheel group 2 performs the wire feeding action, the two second wire feeding wheels 21 rotate in opposite directions.

[0027] More specifically, the first wire feeding wheel group 1 and the second wire feeding wheel group 2 of this utility model are arranged in parallel. By setting a rotating shaft 12 and a bushing 22, the rotating shaft 12 passes through the bushing 22, thereby ensuring that the first wire feeding wheel group 1 and the second wire feeding wheel group 2 can rotate independently and feed wire without interfering with each other.

[0028] In one embodiment of this utility model, when the transmission mechanism 3 is driven in the forward direction, the first wire feeding wheel group 1 performs wire feeding action, and the second wire feeding wheel group 2 stops wire feeding action; when the transmission mechanism 3 is driven in the reverse direction, the second wire feeding wheel group 1 performs wire feeding action, and the first wire feeding wheel group 2 stops wire feeding action.

[0029] It should be noted that when the transmission mechanism 3 is in the forward direction, the drive device 33 is driven in the forward direction, and when the transmission mechanism 3 is in the reverse direction, the drive device 33 is driven in the reverse direction.

[0030] It should be noted that the forward transmission of the transmission mechanism 3 specifically means that the conveying direction of the first wire feeding wheel group 1 is the direction of wire entry; the reverse transmission of the transmission mechanism 3 specifically means that the conveying direction of the second wire feeding wheel group 2 is the direction of wire entry, and at the same time, the transmission direction of the transmission mechanism 3 is opposite to the forward transmission.

[0031] It should be noted that in this embodiment, when the drive device 33 is driven in the forward direction, the second wire feeding wheel group 2 has no power input, and at this time the second wire feeding wheel group 2 stops the wire feeding action, while the first wire feeding wheel group 1 has power input through the transmission mechanism 3, and thus the first wire feeding wheel group 1 performs the wire feeding action; similarly, when the drive device 33 is driven in the reverse direction, the first wire feeding wheel group 1 has no power input, and at this time the first wire feeding wheel group 1 stops the wire feeding action, while the second wire feeding wheel group 2 has power input through the transmission mechanism 3, and thus the second wire feeding wheel group 2 performs the wire feeding action.

[0032] In one specific embodiment of this utility model, the transmission mechanism 3 includes a first transmission mechanism 31, a second transmission mechanism 32, and a one-way bearing 34. The first transmission mechanism 31 is used to transmit the kinetic energy of the driving device 33 to the first wire feeding wheel group 1, and the second transmission mechanism 32 is used to transmit the kinetic energy of the driving device 33 to the second wire feeding wheel group 2. Both the first transmission mechanism 31 and the second transmission mechanism 32 are connected to the one-way bearing 34. When the driving device 33 drives forward, the first transmission mechanism 31 transmits the kinetic energy to the first wire feeding wheel group 1 with the cooperation of the one-way bearing 34, thereby causing the first wire feeding wheel group 1 to perform wire feeding action. At this time, the second transmission mechanism 2, with the cooperation of the one-way bearing 34, prevents the kinetic energy from being transmitted to the second wire feeding wheel group 2, thereby causing the second wire feeding wheel group 2 to stop wire feeding action. Similarly, when the driving device 33 drives in reverse, the second wire feeding wheel group 2 performs wire feeding action, and the first wire feeding wheel group 1 stops wire feeding action.

[0033] It should be noted that the transmission method of the one-way bearing 34 is that the one-way bearing 34 will transmit power from the outer shaft to the inner shaft if and only if the transmission direction of the one-way bearing 34 is correct; otherwise, the outer shaft of the one-way bearing 34 will rotate freely, resulting in no power input to the inner shaft.

[0034] In one embodiment of this utility model, by setting a one-way bearing 34, when the drive device 33 drives in the forward direction, the one-way bearing 34 of the first transmission mechanism 31 can transmit power to the first wire feeding wheel group 1 which is connected to the first transmission mechanism 31. At this time, the one-way bearing 34 connected to the second transmission mechanism 32 is in an idle state, so that power cannot be transmitted from the second transmission mechanism 32 to the second wire feeding wheel group 2, thereby stopping the wire feeding action of the second wire feeding wheel group 2. The forward and reverse drives of the drive device 33 cooperate with the one-way bearing to realize that a single drive device 33 controls the wire feeding action of the first wire feeding wheel group 1 and the second wire feeding wheel group 2 respectively.

[0035] It should be noted that, in the embodiment shown in the figure, in the cooperation of the first transmission mechanism 31, the first wire feeding wheel group 1 and the one-way bearing 34, one end of the one-way bearing 34 is connected to the rotating shaft 12, and the other end of the one-way bearing 34 is connected to the first pulley.

[0036] Furthermore, the first transmission mechanism 31 includes a first pulley assembly 311 and a belt 312. The first pulley assembly 311 and the belt 312 are connected to the drive device 33 for transmission. The first pulley assembly 311 is connected to the first wire feeding wheel assembly 1 through a one-way bearing 34. When the drive device 33 rotates in the forward direction, the first pulley assembly 311 and the one-way bearing 34 cooperate to drive the first wire feeding wheel assembly 1 to perform wire feeding action. When the drive device 33 rotates in the reverse direction, the first pulley assembly 311 and the one-way bearing 34 cooperate to make the first pulley assembly 311 idle so as to keep the first wire feeding wheel assembly 1 from performing wire feeding action.

[0037] More specifically, in one embodiment of the first transmission mechanism 31 shown in the figure, the first pulley group 311 is provided with a plurality of first pulleys, two of which are connected to the rotating shaft 12 via the one-way bearing 34. The cooperation between the first pulley group 311 and the belt 312 causes the two first pulleys connected to the two rotating shafts 12 to rotate in opposite directions, thereby enabling the first pulley group 311 to drive the first wire feeding wheel group 1 to perform the wire feeding action.

[0038] It should be noted that the first transmission mechanism 31 can also be other structures, as long as it satisfies the requirement of controlling the wire feeding action of the first wire feeding wheel group 1 through the one-way bearing 34.

[0039] Furthermore, the second transmission mechanism 32 includes a second pulley 321, a second transmission shaft 322, and a gear set 323. The second pulley 321 is connected to the belt 312 for transmission. The second pulley 321 is connected to the second transmission shaft 322 through a one-way bearing 34. The gear set 323 transmits the power of the second transmission shaft 322 to the second wire feeding wheel set 2 to drive the wire feeding action of the second wire feeding wheel set 2.

[0040] More specifically, in one embodiment of the second transmission mechanism 32 shown in the figure, the second pulley 321 is connected to the drive device 33 via a belt 312. At this time, the drive device 33 can simultaneously drive the transmission actions of the first transmission mechanism 31 and the second transmission mechanism 32. Through the one-way bearing 34, when the drive device 33 drives in the opposite direction, the power of the second pulley 321 can be transmitted to the second transmission shaft 322, thereby driving the subsequent gear set to transmit the second wire feeding wheel set 2.

[0041] More specifically, in one real-time implementation, the gear set 323 includes two gear sets. In one gear set, one gear is connected to the second drive shaft 322 and the two gears mesh, while the other gear is connected to one of the bushings 22. In the other gear set, two gears are connected to two bushings 22 respectively and the two gears mesh.

[0042] It should be noted that the second transmission mechanism 32 can also be other structures, as long as it satisfies the requirement of controlling the wire feeding action of the second wire feeding wheel group 2 through the one-way bearing 34.

[0043] Furthermore, the transmission mechanism 3 includes a first transmission mechanism 31, a second transmission mechanism 32, and a clutch mechanism 35. The clutch mechanism 35 is connected to the drive device 33. The first transmission mechanism 31 is connected to the first wire feeding wheel group 1, and the second transmission mechanism 31 is connected to the second wire feeding wheel group 2. The clutch mechanism 35 cooperates with the first transmission mechanism 31 and the second transmission mechanism 32 respectively so that when the first wire feeding wheel group 1 performs a wire feeding action, the second wire feeding wheel group 2 stops the wire feeding action, and similarly, when the second wire feeding wheel group 2 performs a wire feeding action, the first wire feeding wheel group 1 stops the wire feeding action.

[0044] It should be noted that in one embodiment of this utility model, by setting a clutch mechanism 35, the clutch mechanism 35 has the function of selective transmission. Therefore, the clutch mechanism 35 can be used to select the transmission of the first transmission mechanism 31 or the second transmission mechanism 32, thereby realizing that when the first wire feeding wheel group 1 feeds wire, the second wire feeding wheel group 2 stops feeding wire and clamps the steel wire, or when the second wire feeding wheel group 2 feeds wire, the first wire feeding wheel group 1 stops feeding wire and clamps the steel wire.

[0045] More specifically, it should be noted that selective transmission via clutch mechanism 35 is a known technology. Its specific structure only needs to satisfy the requirement of selectively transmitting power to either the first transmission mechanism 31 or the second transmission mechanism 32, which will not be described in detail here.

[0046] Furthermore, the drive wheel assembly 36 is connected to the drive device 33 via a drive belt 37. The rotation of the drive wheel assembly 36 drives the drive shaft 38 to rotate. The drive shaft is connected to the clutch mechanism. The clutch mechanism 35 is connected to the first optional shaft 39 and the second optional shaft 310 respectively, so that the clutch mechanism 35 can selectively transmit kinetic energy to the first optional shaft 39 or the second optional shaft 310. The first optional shaft 39 is connected to the first transmission mechanism 31, and the second optional shaft 310 is connected to the second transmission mechanism 32.

[0047] More preferably, the clutch mechanism 35 selects to drive one of the first optional shaft 39 and the second optional shaft 310, thereby realizing the transmission of power to the first transmission mechanism 31 or the second transmission mechanism 32.

[0048] To further illustrate the specific implementation of this embodiment, as follows: Figure 7 The figure shown is one embodiment of this example. In this embodiment, the first optional shaft 39 passes through the drive shaft 38, and the second optional shaft 310 is fitted with the drive shaft 38. At this time, the clutch mechanism 35 (the specific structure is not shown in the figure) is connected to the first optional shaft 39 and the second optional shaft 310 respectively.

[0049] Furthermore, the first transmission mechanism 31 includes a first optional wheel set 3101 and a first transmission belt 3102, and the second transmission mechanism 32 includes a second optional wheel set 3201, a second transmission belt 3202 and a second transmission gear set 3203. The first optional wheel set 3101 is drivenly connected to the first optional shaft 39, and the second optional wheel set 3201 is drivenly connected to the second optional shaft 310. The first optional wheel set 3101 and the first transmission belt 3102 cooperate to drively connect the first optional shaft 39 to the first wire feeding wheel set 1. The second optional wheel set 3201, the second transmission belt 3022 and the second transmission gear set 3203 drively connect the second optional shaft 310 to the second wire feeding wheel set 2.

[0050] Furthermore, it also includes a lifting mechanism 4, which is used to drive the opening and closing action of the first wire feeding wheel group 1 and the second wire feeding wheel group 2.

[0051] It should be noted that by setting up the lifting mechanism 4, the first wire feeding wheel group 1 or the second wire feeding wheel group 2 can be opened through the lifting mechanism when the wire is fed or a new wire is replaced, thereby facilitating the wire feeding action.

[0052] Furthermore, the lifting mechanism 4 consists of two cylinders, one of which drives the opening and closing action of the first wire feeding wheel group 1, and the other cylinder drives the opening and closing action of the second wire feeding wheel group 2.

[0053] More specifically, the cylinder has the advantages of stable and fast driving and accurate positioning, which is conducive to the rapid opening and closing of the first wire feeding wheel group 1 and the second wire feeding wheel group 2.

[0054] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A novel dual-wire feeding mechanism, characterized in that: Includes a first wire feeding wheel assembly, a second wire feeding wheel assembly, and a transmission mechanism; The first wire feeding wheel set and the second wire feeding wheel set are used to clamp the steel wire for conveying, respectively. The transmission mechanism is used to drive the first wire feeding wheel group and the second wire feeding wheel group. When the transmission mechanism drives the first wire feeding wheel group to perform wire feeding, the second wire feeding wheel group stops performing wire feeding, and the second wire feeding wheel group does not need to release the steel wire. When the transmission mechanism drives the second wire feeding wheel group to perform wire feeding, the first wire feeding wheel group stops performing wire feeding, and the first wire feeding wheel group does not need to release the steel wire. The transmission mechanism has one and only a single drive unit.

2. The novel dual-wire feeding mechanism as described in claim 1, characterized in that: The first wire feeding wheel set includes two opposing first wire feeding wheels for clamping and feeding wire. The second wire feeding wheel set includes two opposing second wire feeding wheels for clamping and feeding wire. The first and second wire feeding wheel sets also include rotating shafts and bushings. The two rotating shafts are respectively connected to the two first wire feeding wheels, and the two bushings are respectively connected to the two second wire feeding wheels. The two rotating shafts pass through the two bushings. The transmission mechanism drives the two rotating shafts and the two bushings to rotate, thereby driving the first and second wire feeding wheel sets to feed wire. When the first wire feeding wheel set performs the wire feeding action, the two first wire feeding wheels rotate in opposite directions. When the second wire feeding wheel set performs the wire feeding action, the two second wire feeding wheels rotate in opposite directions.

3. The novel dual-wire feeding mechanism as described in claim 1, characterized in that: The transmission mechanism includes a first transmission mechanism, a second transmission mechanism, and a clutch mechanism. The clutch mechanism is connected to the drive device. The first transmission mechanism is connected to the first wire feeding wheel assembly, and the second transmission mechanism is connected to the second wire feeding wheel assembly. The clutch mechanism cooperates with the first transmission mechanism and the second transmission mechanism respectively so that when the first wire feeding wheel assembly performs a wire feeding action, the second wire feeding wheel assembly stops performing a wire feeding action, and similarly, when the second wire feeding wheel assembly performs a wire feeding action, the first wire feeding wheel assembly stops performing a wire feeding action.

4. The novel dual-wire feeding mechanism as described in claim 3, characterized in that: The transmission mechanism further includes a drive wheel assembly, a drive belt, a drive shaft, a first optional shaft, and a second optional shaft. The drive wheel assembly is connected to the drive device via the drive belt. The rotation of the drive wheel assembly drives the drive shaft to rotate. The drive shaft is connected to the clutch mechanism. The clutch mechanism is connected to the first optional shaft and the second optional shaft respectively, so that the clutch mechanism can select to transmit kinetic energy to the first optional shaft or the second optional shaft. The first optional shaft is connected to the first transmission mechanism, and the second optional shaft is connected to the second transmission mechanism.

5. A novel dual-wire feeding mechanism as described in claim 4, characterized in that: The first transmission mechanism includes a first optional wheel set and a first transmission belt, and the second transmission mechanism includes a second optional wheel set, a second transmission belt and a second transmission gear set. The first optional wheel set is driven to the first optional shaft, and the second optional wheel set is driven to the second optional shaft. The first optional wheel set and the first transmission belt cooperate to drive the first optional shaft to the first wire feeding wheel set. The second optional wheel set, the second transmission belt and the second transmission gear set drive the second optional shaft to the second wire feeding wheel set.

6. The novel dual-wire feeding mechanism as described in claim 1, characterized in that: When the transmission mechanism is driven in the forward direction, the first wire feeding wheel group performs the wire feeding action, and the second wire feeding wheel group stops the wire feeding action; when the transmission mechanism is driven in the reverse direction, the second wire feeding wheel group performs the wire feeding action, and the first wire feeding wheel group stops the wire feeding action.

7. A novel dual-wire feeding mechanism as described in claim 6, characterized in that: The transmission mechanism includes a first transmission mechanism, a second transmission mechanism, and a one-way bearing. The first transmission mechanism transmits the kinetic energy of the driving device to the first wire feeding wheel assembly, and the second transmission mechanism transmits the kinetic energy of the driving device to the second wire feeding wheel assembly. Both the first and second transmission mechanisms are connected to one-way bearings. When the driving device drives in the forward direction, the first transmission mechanism, with the cooperation of the one-way bearing, transmits the kinetic energy to the first wire feeding wheel assembly, thereby causing the first wire feeding wheel assembly to perform wire feeding. At this time, the second transmission mechanism, with the cooperation of the one-way bearing, prevents the kinetic energy from being transmitted to the second wire feeding wheel assembly, thereby stopping the wire feeding operation of the second wire feeding wheel assembly. Similarly, when the driving device drives in the reverse direction, the second wire feeding wheel assembly performs wire feeding, and the first wire feeding wheel assembly stops performing wire feeding.

8. A novel dual-wire feeding mechanism as described in claim 7, characterized in that: The first transmission mechanism includes a first pulley assembly and a belt. The first pulley assembly and the belt are connected to the drive device for transmission. The first pulley assembly is connected to the first wire feeding wheel assembly through a one-way bearing. When the drive device rotates in the forward direction, the first pulley assembly and the one-way bearing cooperate to drive the first wire feeding wheel assembly to perform wire feeding action. When the drive device rotates in the reverse direction, the first pulley assembly and the one-way bearing cooperate to allow the first pulley assembly to idle so that the first wire feeding wheel assembly does not perform wire feeding action.

9. A novel dual-wire feeding mechanism as described in claim 8, characterized in that: The second transmission mechanism includes a second pulley, a second transmission shaft, and a gear set. The second pulley is connected to the belt drive, and the second pulley is connected to the second transmission shaft through a one-way bearing. The gear set transmits the power of the second transmission shaft to the second wire feeding wheel set to drive the wire feeding action of the second wire feeding wheel set.

10. A novel dual-wire feeding mechanism as described in claim 1, characterized in that: It also includes a lifting mechanism, which is used to drive the opening and closing of the first wire feeding wheel group and the second wire feeding wheel group.

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