A wire feeding mechanism for power cord assembly equipment

Abstract

This utility model discloses a wire feeding mechanism for a power cord assembly device, including a wire pulling mechanism and a wire buffer mechanism. The wire pulling mechanism pulls out one end of the wire and places it onto the wire buffer mechanism. The wire buffer mechanism temporarily stores the wire and includes a buffer fixing frame with multiple buffer gripper cylinders evenly distributed on it. A buffer transfer mechanism is also provided on the buffer fixing frame, connected to both the buffer gripper cylinders and the wire pulling mechanism. The wire pulling mechanism places the wire onto the buffer transfer mechanism, which then sequentially transfers the wire to each of the buffer gripper cylinders. This utility model automatically pulls out one end of the wire and arranges it in an orderly manner. Combined with a robotic arm, it can automatically feed the wire onto an injection molding carrier without manual intervention, improving the automation level of the equipment, reducing labor costs, significantly increasing processing efficiency, and meeting the needs of large-scale production.

Description

Technical Field

[0001] This utility model relates to the technical field of power cord production equipment, specifically to a wire feeding mechanism for power cord assembly equipment. Background Technology

[0002] Power cords are required for various common household and office appliances. A power cord typically consists of a cable and connectors at both ends. One connector is used to connect to an external power source, and the other is used to connect to electrical equipment. During connector assembly, terminals are usually crimped onto the cable cores, and then the outer shell is formed using injection molding. In current manufacturing processes, after crimping the terminals, the two ends of the power cord are usually neatly arranged. However, when injection molding one end, that end needs to be pulled out separately and arranged on the injection molding carrier.

[0003] Currently, this pulling and arranging operation is mostly done manually, followed by injection molding of the power cord's end casing using an injection molding machine. This manual operation has many drawbacks: very low production efficiency, severely limiting capacity; continuously rising labor costs and poor operational consistency; furthermore, this low-automation model is no longer sufficient to meet the demands of modern large-scale production. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a wire feeding mechanism for a power cord assembly device. The power cord assembly device includes a machine base with a conveying mechanism on the machine base. The conveying mechanism can transport the wire to be crimped with terminals to the wire feeding mechanism. The wire feeding mechanism includes a wire pulling mechanism and a wire buffering mechanism. The wire pulling mechanism is connected to the conveying mechanism and is used to pull out one end of the wire on the conveying mechanism and place the wire on the wire buffering mechanism. The wire buffering mechanism is used to temporarily store the wire and includes a buffer fixing frame connected to the machine base. The buffer fixing frame has multiple buffer gripper cylinders evenly distributed on it. The buffer fixing frame is equipped with a buffer shifting mechanism, which is connected to the buffer gripper cylinders and the wire pulling mechanism respectively. The wire pulling mechanism can place the wire on the buffer shifting mechanism, and the buffer shifting mechanism is used to sequentially move the wire to each buffer gripper cylinder.

[0005] As a further improvement of this utility model, the wire pulling mechanism includes a wire pulling fixing frame, which is connected to the machine base. The wire pulling fixing frame is provided with a wire pulling horizontal movement module, and the output end of the wire pulling horizontal movement module is provided with a wire pulling lifting module. The output end of the wire pulling lifting module is provided with a wire pulling gripper cylinder.

[0006] As a further improvement of this utility model, the wire pulling module includes a horizontal moving motor and a horizontal moving driven wheel. The horizontal moving motor is connected to the wire pulling frame. The output end of the horizontal moving motor holds a horizontal moving driving wheel. A horizontal moving transmission belt is sleeved on the horizontal moving driving wheel and the horizontal moving driven wheel. The wire pulling lifting module is connected to the horizontal moving transmission belt.

[0007] As a further improvement of this utility model, the wire pulling lifting module includes a lifting fixed seat, which is connected to the transverse transmission belt. The lifting fixed seat is provided with a lifting cylinder, and the wire pulling claw cylinder is connected to the output end of the lifting cylinder.

[0008] As a further improvement of this utility model, the pull wire fixing frame is provided with a transverse guide rail, and the lifting fixing seat is provided with a transverse guide block, and the transverse guide block is slidably engaged with the transverse guide rail.

[0009] As a further improvement of this utility model, a wire pulling clamping cylinder is provided at a position corresponding to the conveying mechanism on the wire pulling fixing frame. An opening clamping block is provided on the output end of the wire pulling clamping cylinder. A wire clamp is provided on the conveying mechanism. The wire clamp is used to hold the wire. The wire pulling clamping cylinder can drive the opening clamping block to abut or separate from the wire clamp.

[0010] As a further improvement of this utility model, the buffer shifting mechanism includes a shifting motor, a shifting guide rail, and a shifting sliding plate. The shifting motor and the shifting guide rail are respectively connected to the buffer fixing frame. A shifting gear is provided on the output end of the shifting motor, and a shifting rack is provided on the shifting sliding plate. The shifting gear and the shifting rack are meshed and connected. The shifting sliding plate is slidably engaged with the shifting guide rail. Multiple shifting gripper cylinders are evenly distributed on the shifting sliding plate, and the distance between adjacent shifting gripper cylinders is the same as the distance between adjacent buffer gripper cylinders.

[0011] As a further improvement of this utility model, the number of the shifting gripper cylinder and the buffer gripper cylinder are three respectively.

[0012] As a further improvement of this utility model, a buffer wire protection clamp is provided on the buffer fixing frame at a position corresponding to the buffer clamp cylinder, and the buffer wire protection clamp and the corresponding buffer clamp cylinder clamp the same wire.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a wire-pulling mechanism to pull out one end of the wire from the conveying mechanism, and a wire-buffering mechanism to arrange the wire at equal intervals. This facilitates subsequent gripping and loading by a robotic arm. It automatically pulls out and orderly arranges the wire at the injection molding end, and the robotic arm automatically places the wire onto the injection molding carrier without manual intervention. This increases the automation level of the equipment, reduces labor costs, significantly improves processing efficiency, and meets the needs of large-scale production. Furthermore, using machines instead of manual labor avoids the problem of inconsistent wire arrangement, improving processing quality. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the wire-pulling mechanism in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the wire buffer mechanism in an embodiment of this utility model;

[0019] Figure 4 This is a side view of the wire buffer mechanism in an embodiment of this utility model. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0021] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, a wire feeding mechanism for a power cord assembly device is provided. The power cord assembly device includes a machine base 100, on which a conveying mechanism 200 is provided. The conveying mechanism 200 can convey wires with crimped terminals to the wire feeding mechanism. The wire feeding mechanism includes a wire pulling mechanism 1 and a wire buffering mechanism 2. The wire pulling mechanism 1 is connected to the conveying mechanism 200 and is used to pull out one end of the wire from the conveying mechanism 200 and place the wire onto the wire buffering mechanism 2. The wire buffer mechanism 2 is used to temporarily store wires. The wire buffer mechanism 2 includes a buffer fixing frame 21, which is connected to the machine base 100. Multiple buffer gripper cylinders 22 are evenly distributed on the buffer fixing frame 21. The buffer fixing frame 21 is equipped with a buffer transfer mechanism 3, which is connected to the buffer gripper cylinders 22 and the wire pulling mechanism 1 respectively. The wire pulling mechanism 1 can place the wires on the buffer transfer mechanism 3. The buffer transfer mechanism 3 is used to transfer the wires sequentially to each buffer gripper cylinder 22.

[0024] During operation, a transfer robot is installed on one side of the wire feeding mechanism. The conveying mechanism 200 transports the wire with crimped terminals to the processing position of the wire pulling mechanism 1. Then, the wire pulling mechanism 1 is controlled to work, clamping one end of the wire on the conveying mechanism 200 and pulling the wire to pull out the end of the wire that needs to be injected. Then, the wire pulling mechanism 1 places the pulled-out wire onto the buffer transfer mechanism 3. Afterwards, the buffer transfer mechanism 3 works to move the wire between each buffer gripper cylinder 22, adjusting the spacing between each wire to the preset spacing, until each buffer gripper cylinder 22 holds one wire. Then, the transfer robot removes the wire from the buffer gripper cylinder 22 and places it onto the injection molding carrier, realizing the processing of pulling out one end of the wire and injection feeding.

[0025] This wire feeding mechanism can pull out one end of the wire and arrange the wires at equal intervals, making it easy for the robot arm to grab and load the wires. It realizes the automatic pulling out and orderly arrangement of the end of the wire that needs to be injected, and can automatically place the wire onto the injection molding carrier with the help of the robot arm, without human intervention. This improves the automation level of the equipment, reduces labor costs, and can greatly improve processing efficiency to meet the needs of large-scale production.

[0026] It's important to note that the reason for pulling out one end of the wire before sorting and injection molding is to ensure that the two ends of the wire are not aligned during injection. This allows multiple wires to be injection molded to be placed as close together as possible when placing them into the injection mold, enabling the mold to hold more products and improving injection molding efficiency. Compared to injection molding without pulling the wire, this wire feeding mechanism allows for the use of a smaller injection molding machine when injection molding the same quantity at once, thus reducing the overall size of the power cord assembly equipment.

[0027] like Figure 2 As shown, the wire pulling mechanism 1 includes a wire pulling fixing frame 11, which is mounted on the machine base 100. A wire pulling horizontal movement module 12 is mounted on the wire pulling fixing frame 11. A wire pulling lifting module 13 is mounted on the output end of the wire pulling horizontal movement module 12, and a wire pulling gripper cylinder 14 is mounted on the output end of the wire pulling lifting module 13. In operation, the wire pulling horizontal movement module 12 is controlled to drive the wire pulling lifting module 13 and the wire pulling gripper cylinder 14 to move laterally, causing them to move directly above the wire on the conveying mechanism 200. Then, the wire pulling lifting module 13 is controlled to drive the wire pulling gripper cylinder 14 to descend, subsequently clamping one end of the wire on the conveying mechanism 200. Finally, the wire pulling horizontal movement module 12 is controlled to reset, allowing the wire pulling horizontal movement module 12 to return to its original position. The wire-pulling gripper cylinder 14 drives one end of the wire to move, thereby pulling one end of the wire out from the conveying mechanism 200 and pulling the wire to the top of the buffer transfer mechanism 3. Then, through the cooperation of the wire-pulling lifting module 13 and the wire-pulling gripper cylinder 14, the wire is placed on the buffer transfer mechanism 3. The buffer transfer mechanism 3 then moves the wire to the position of the buffer gripper cylinder 22, where the buffer gripper cylinder 22 holds the wire, completing the wire pulling and unloading work.

[0028] Specifically, the wire pulling traverse module 12 includes a traverse motor 121 and a traverse driven wheel 122. The traverse motor 121 is connected to the wire pulling fixing frame 11. The output end of the traverse motor 121 holds a traverse driving wheel 123. A traverse transmission belt 124 is sleeved on the traverse driving wheel 123 and the traverse driven wheel 122. The wire pulling lifting module 13 is connected to the traverse transmission belt 124. During operation, the traverse motor 121 is controlled to work, driving the traverse driving wheel 123 to rotate. The traverse driving wheel 123 drives the traverse transmission belt 124 to move. The traverse transmission belt 124 pulls the wire pulling lifting module 13 and the wire pulling gripper cylinder 14 to move, thereby achieving the purpose of driving the wire pulling lifting module 13 and the wire pulling gripper cylinder 14 to move back and forth between the conveying mechanism 200 and the buffer transfer mechanism 3.

[0029] The wire pulling lifting module 13 includes a lifting fixed base 131, which is connected to the transverse transmission belt 124. A lifting cylinder 132 is mounted on the lifting fixed base 131, and a wire pulling gripper cylinder 14 is connected to the output end of the lifting cylinder 132. During operation, after the wire pulling transverse module 12 drives the wire pulling lifting module 13 to a preset position, the lifting cylinder 132 is controlled to operate, driving the wire pulling gripper cylinder 14 to descend to a suitable position. The wire pulling gripper cylinder 14 then clamps or releases the wire. Afterward, the lifting cylinder 132 is controlled to reset, driving the wire pulling gripper cylinder 14 to rise to the initial position.

[0030] To limit and guide the lateral movement of the pull cable, a lateral guide rail 125 is provided on the pull cable fixing frame 11, and a lateral guide block 126 is provided on the lifting fixing seat 131. The lateral guide block 126 is slidably engaged with the lateral guide rail 125. When the lateral motor 121 is working, the lifting fixing seat 131 will drive the lateral guide block 126 to slide on the lateral guide rail 125. Through the cooperation of the lateral guide block 126 and the lateral guide rail 125, the movement direction of the lifting fixing seat 131 is limited and guided, thereby ensuring that the lifting fixing seat 131 can move above the conveying mechanism 200 or the buffer transfer mechanism 3.

[0031] Normally, to achieve stable wire conveying, the conveying mechanism 200 is equipped with wire clamps 201 to hold and fix the wire, thus preventing the wire from falling out of the conveying mechanism 200. In order for the wire pulling claw cylinder 14 to clamp the wire on the conveying mechanism 200, a wire pulling and opening cylinder 15 is provided on the wire pulling fixing frame 11 at a corresponding position to the conveying mechanism 200. The output end of the wire pulling and opening cylinder 15 is provided with an opening pressure block 16, which can drive the opening pressure block 16 to abut or separate from the wire clamp 201. Normally, the wire pulling and clamping cylinder 15 retracts, causing the clamping block 16 to separate from the wire clamp 201 on the conveying mechanism 200. When it is necessary to clamp the wire on the conveying mechanism 200, the wire pulling and clamping cylinder 15 is extended, driving the clamping block 16 to descend and abut against the wire clamp 201. The clamping block 16 will squeeze the wire clamp 201, causing the wire clamp 201 to open, thus facilitating the wire pulling claw cylinder 14 to pull the wire out of the wire clamp 201. After one end of the wire is pulled out, the wire pulling and clamping cylinder 15 is reset, driving the clamping block 16 to rise and reset to the initial position. After the clamping block 16 leaves the wire clamp 201, the spring on the wire clamp 201 will automatically close the wire clamp 201 to clamp the wire again, so that the wire can be conveyed to other workstations.

[0032] like Figures 3-4 As shown, the buffer transfer mechanism 3 includes a transfer motor 31, a transfer guide rail 32, and a transfer sliding plate 33. The transfer motor 31 and the transfer guide rail 32 are respectively connected to the buffer fixing frame 21. A transfer gear 34 is provided on the output end of the transfer motor 31, and a transfer rack 35 is provided on the transfer sliding plate 33. The transfer gear 34 and the transfer rack 35 are meshed and connected. The transfer sliding plate 33 is slidably engaged with the transfer guide rail 32. Multiple transfer gripper cylinders 36 are evenly distributed on the transfer sliding plate 33. The distance between adjacent transfer gripper cylinders 36 is the same as the distance between adjacent buffer gripper cylinders 22.

[0033] In actual operation, the wire-pulling gripper cylinder 14 moves the wire to the shifting gripper cylinder 36 closest to the wire-pulling mechanism 1. The shifting gripper cylinder 36 clamps the wire, and then the wire-pulling gripper cylinder 14 releases the wire. Then, the shifting motor 31 is controlled to work, driving the shifting gear 34 to rotate. The shifting gear 34 pushes the shifting rack 35 and the shifting sliding plate 33 to move. The shifting sliding plate 33 drives the shifting gripper cylinder 36 to slide laterally, so that the shifting gripper cylinder 36 holding the wire is aligned with the buffer gripper cylinder 22 closest to the wire-pulling mechanism 1. One end of the wire extends into the clamping position of the buffer gripper cylinder 22. Then, the buffer gripper cylinder 22 clamps the wire, and the shifting gripper cylinder 36 releases the wire, thus realizing the process of transferring the wire from the shifting gripper cylinder 36 to the buffer gripper cylinder 22. Then, the transfer motor 31 is reversed to drive the first transfer gripper cylinder 36 to clamp the new wire again. At the same time, the transfer sliding plate 33 slides in the opposite direction, which will drive the second transfer gripper cylinder 36 to align with the first buffer gripper cylinder 22. Then, the second transfer gripper cylinder 36 is controlled to clamp the wire, and the first buffer gripper cylinder 22 is controlled to release the wire. Then, the transfer motor 31 is controlled to rotate forward, and the first transfer gripper cylinder 36 will move to align with the first buffer gripper cylinder 22. At the same time, the second transfer gripper cylinder 36 will move to align with the second buffer gripper cylinder 22. Then, the wire on the first transfer gripper cylinder 36 is placed on the first buffer gripper cylinder 22, and the wire on the second transfer gripper cylinder 36 is placed on the second buffer gripper cylinder 22. Repeat the above process until all the buffer gripper cylinders 22 are filled with wire, then control the matching transfer robot to remove the wire from each buffer gripper cylinder 22, thus realizing the wire discharge and transfer.

[0034] In this embodiment, there are three shifting gripper cylinders 36 and three buffer gripper cylinders 22. In other embodiments, there may be more than three shifting gripper cylinders 36 and three buffer gripper cylinders 22.

[0035] To ensure stable clamping of the wire on the buffer gripper cylinder 22 and prevent the wire end from tangling or sagging, buffer guard grippers 23 are respectively provided on the buffer fixing frame 21 at corresponding positions to the buffer gripper cylinder 22. The buffer guard grippers 23 and the corresponding buffer gripper cylinder 22 clamp the same wire. That is, during operation, when the buffer gripper cylinder 22 clamps the wire, it also controls the corresponding buffer guard gripper 23 to clamp the wire. When the buffer gripper cylinder 22 releases the wire, it also controls the corresponding buffer guard gripper 23 to release the wire. By holding the middle of the wire with the buffer guard grippers 23, the wire swings smoothly on the wire buffer mechanism 2, improving the stability of the operation.

[0036] The wire feeding mechanism, when applied to power cord assembly equipment, has the following beneficial effects:

[0037] 1. Fully automated operation: Through the coordinated operation of the wire pulling mechanism 1 and the wire buffer mechanism 2, the wire is automatically pulled out, transferred and arranged, completely replacing manual operation and greatly improving production efficiency.

[0038] 2. High-precision material arrangement: The precise positioning of the wire pulling module 12, the wire pulling lifting module 13 and the buffer transfer mechanism 3 ensures that the wire spacing is consistent and the arrangement is neat, which is convenient for the robot to grasp and for subsequent injection molding.

[0039] 3. High flexibility and adaptability: By adjusting the number and spacing of the buffer gripper cylinders 22, it can adapt to the production needs of wires of different specifications.

[0040] 4. Reduce production costs: Reduce manual labor, lower labor costs, improve production consistency, and reduce defect rate.

[0041] 5. Stable and reliable structure: It adopts a combination of cylinder and module drive, which is stable in operation, low in noise, long in life, and suitable for high-speed continuous operation.

[0042] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A wire feeding mechanism for a power cord assembly equipment, the power cord assembly equipment including a machine base, a conveying mechanism provided on the machine base, the conveying mechanism being capable of conveying wires to be crimped with terminals onto the wire feeding mechanism, characterized in that: The wire feeding mechanism includes a wire pulling mechanism and a wire buffer mechanism. The wire pulling mechanism is connected to the conveying mechanism and is used to pull out one end of the wire on the conveying mechanism and place the wire onto the wire buffer mechanism. The wire buffer mechanism is used to temporarily store wires. The wire buffer mechanism includes a buffer fixing frame, which is connected to the machine base. Multiple buffer gripper cylinders are evenly distributed on the buffer fixing frame. A buffer transfer mechanism is provided on the buffer fixing frame. The buffer transfer mechanism is connected to the buffer gripper cylinders and the wire pulling mechanism respectively. The wire pulling mechanism can place the wires onto the buffer transfer mechanism. The buffer transfer mechanism is used to sequentially transfer the wires to each buffer gripper cylinder.

2. The wire feeding mechanism of the power cord assembly equipment according to claim 1, characterized in that: The wire pulling mechanism includes a wire pulling fixing frame, which is connected to the machine base. The wire pulling fixing frame is equipped with a wire pulling horizontal movement module. The output end of the wire pulling horizontal movement module is equipped with a wire pulling lifting module. The output end of the wire pulling lifting module is equipped with a wire pulling gripper cylinder.

3. The wire feeding mechanism of the power cord assembly equipment according to claim 2, characterized in that: The wire pulling module includes a traverse motor and a traverse driven wheel. The traverse motor is connected to the wire pulling frame. The output end of the traverse motor holds a traverse driving wheel. A traverse transmission belt is sleeved on the traverse driving wheel and the traverse driven wheel. The wire pulling lifting module is connected to the traverse transmission belt.

4. The wire feeding mechanism of the power cord assembly equipment according to claim 3, characterized in that: The cable lifting module includes a lifting fixed base, which is connected to the transverse transmission belt. A lifting cylinder is provided on the lifting fixed base, and the cable clamp cylinder is connected to the output end of the lifting cylinder.

5. The wire feeding mechanism of the power cord assembly equipment according to claim 4, characterized in that: The pull wire fixing frame is provided with a transverse guide rail, and the lifting fixing seat is provided with a transverse guide block. The transverse guide block is slidably engaged with the transverse guide rail.

6. The wire feeding mechanism of the power cord assembly equipment according to claim 2, characterized in that: A wire clamping cylinder is provided on the wire clamping frame at a position corresponding to the conveying mechanism. An opening block is provided on the output end of the wire clamping cylinder. A wire clamp is provided on the conveying mechanism. The wire clamp is used to hold the wire. The wire clamping cylinder can drive the opening block to abut or separate from the wire clamp.

7. The wire feeding mechanism of the power cord assembly equipment according to any one of claims 1-6, characterized in that: The buffer shifting mechanism includes a shifting motor, a shifting guide rail, and a shifting sliding plate. The shifting motor and the shifting guide rail are respectively connected to the buffer fixing frame. A shifting gear is provided on the output end of the shifting motor. A shifting rack is provided on the shifting sliding plate. The shifting gear and the shifting rack are meshed and connected. The shifting sliding plate is slidably engaged with the shifting guide rail. Multiple shifting gripper cylinders are evenly distributed on the shifting sliding plate. The distance between adjacent shifting gripper cylinders is the same as the distance between adjacent buffer gripper cylinders.

8. The wire feeding mechanism of the power cord assembly equipment according to claim 7, characterized in that: There are three of each of the shifting gripper cylinders and the buffer gripper cylinders.

9. The wire feeding mechanism of the power cord assembly equipment according to claim 7, characterized in that: The buffer mounting bracket is provided with buffer wire protection claws at the corresponding positions of the buffer clamping claw cylinders, and the buffer wire protection claws and the corresponding buffer clamping claw cylinders clamp the same wire.

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