Wire stroking device
By designing a cable straightening device, the coordinated movement of mechanical modules is used to straighten and tighten the photovoltaic junction box cables, solving the problem of loose or detached cables and improving production efficiency and cable positioning accuracy.
Patent Information
- Application Number
- CN202422488582.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Existing technologies are insufficient for effectively straightening the cables in photovoltaic junction boxes, which makes the cables prone to loosening or falling off during transportation and use. Furthermore, traditional straightening structures are inefficient.
A cable straightening device was designed, including a fixed base, a feeding base, a transfer gripper, a flipping gripper, and a cable straightening wheel. The cable straightening and clamping are achieved through the coordinated movement of mechanical modules, and the cable is rolled, pressed, and straightened by the annular groove of the cable straightening wheel.
It enables automatic straightening and accurate positioning of photovoltaic junction box cables, reduces manual operation, improves production efficiency, and ensures that the cables are in a straight state before being clamped, preventing them from becoming loose or falling off.
Smart Images

Figure CN223540052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial equipment, specifically to a wire straightening device. Background Technology
[0002] Photovoltaic junction boxes are crucial components of solar photovoltaic (PV) systems, primarily located between the solar cell array and the solar charging control device, serving to connect and transmit power. A PV junction box mainly consists of three parts: the box body, cables, and connectors. The required cable length for connecting the battery array and the solar charging control device is often variable. To ensure sufficient cable length for connection, the cables in the PV junction box need to be designed to be relatively long. However, excessively long cables are inconvenient for packaging and transportation. Therefore, during sales and transportation, the cable portion of the PV junction box is usually bent and secured to make the overall volume more compact and easier to transport and sell. At the same time, the long cables make the PV junction box susceptible to loosening or detachment due to external factors (such as wind and vibration). Therefore, after the PV junction box is assembled on the photovoltaic panel, any excess cable portion needs to be quickly and easily re-secured. Therefore, in the production process of PV junction boxes, manufacturers now use a clamping structure with latches at both ends to bend and secure the cables after the entire PV junction box is produced.
[0003] When clamping the cables in the photovoltaic junction box, it is necessary to ensure that the cables are in a smooth and straight state. This is to ensure the dimensions of the bent portion of the cable are maintained during the next step of bending the cable. However, the cables in the photovoltaic junction box often undergo bending and deformation during the previous processing and transportation. Therefore, it is necessary to straighten the cables before clamping them in the photovoltaic junction box. However, traditional straightening structures are difficult to use directly to straighten the cables in the photovoltaic junction box. Utility Model Content
[0004] The purpose of this utility model is to provide a wire straightening device that can effectively solve the above-mentioned technical problems.
[0005] To achieve the purpose of this utility model, the following technical solution is adopted:
[0006] A wire straightening device, characterized in that: it includes a fixed base for wire connection and a feeding base, and a photovoltaic junction box disposed on the feeding base and carrying a cable;
[0007] One end of the feeding seat is provided with a first moving block, the first moving block is provided with a transfer gripper, and the side of the feeding seat is provided with a flipping gripper;
[0008] One end of the fixed base is provided with a second movable block with a wire clamping claw, and one end of the wire clamping claw is provided with a wire straightening module;
[0009] The cable straightening module includes a cable straightening clamp, one side of which is equipped with a rotatable left cable straightening wheel, and the other side of which is equipped with a rotatable right cable straightening wheel. The left and right cable straightening wheels are respectively designed with annular grooves for clamping the cable.
[0010] Furthermore, the top of the feeding seat is detachably provided with a fixture for fixing the photovoltaic junction box, and one end of the fixture is provided with a material groove for limiting the photovoltaic junction box.
[0011] Furthermore, the maximum opening angle of the transfer gripper is 180°.
[0012] Furthermore, the side of the feeding seat is provided with a gripper cylinder for controlling the start and stop of the flipping gripper.
[0013] Furthermore, the bottom end of the feeding seat is provided with a first linear module, and the first moving block is a slider assembled on the first linear module and sliding in a first direction.
[0014] Furthermore, one end of the fixed base is provided with a fixed plate, the fixed plate is provided with a linear slide rail, the second moving block is a slider assembled on the linear slide rail and sliding in a second direction, and one end of the fixed base is provided with a pen-shaped cylinder for controlling the movement of the second moving block.
[0015] Furthermore, the flipping gripper is provided with two gripping blocks that can move relative to each other.
[0016] Furthermore, the other end of the fixture is provided with a connecting groove, and one side of the feeding seat is provided with a three-axis cylinder with a connecting block. The connecting groove is used to insert with the connecting block.
[0017] Furthermore, a rotary cylinder is provided on one side of the feeding seat.
[0018] Furthermore, one end of the rotary cylinder is provided with a fixing block for assembling the gripper cylinder.
[0019] Compared with existing technologies, this utility model has the following advantages: This utility model can be used independently or in conjunction with manual labor to perform wire clamping processing on photovoltaic junction boxes, or it can be used on a production line. The device, by setting a fixture with a material groove on the upper part of the feeding seat, not only facilitates the positioning of the photovoltaic junction box body, but also facilitates the movement of the box body into the clamping jaws by gripping the root of the cable with the transfer grippers. Then, the cable is rolled and pressed by the annular grooves of the left and right straightening wheels, and then the forward and backward movement is achieved by the front and rear moving blocks, thereby straightening and correcting the cable. This device achieves the straightening processing of photovoltaic junction boxes through a motion module, and the entire processing process is completed automatically, greatly saving labor. At the same time, the annular grooves of the left and right straightening wheels achieve a wrap-around clamping of the cable, ensuring that the cable is fully straightened. Simultaneously, the straightened cable is accurately positioned, reserving space for the cable to be clamped in the next step, facilitating the wire clamping operation. Attached Figure Description
[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the first embodiment of the material feeding seat of this utility model.
[0023] Figure 3 This is a schematic diagram of the second embodiment of the material feeding seat of this utility model.
[0024] Figure 4 This is a schematic diagram of the structure of the fixture of this utility model.
[0025] Figure 5 This is a top-down view of the structure of the left and right winding reels during winding.
[0026] In the diagram: 1. Photovoltaic junction box; 2. Feeding seat; 3. Transfer gripper; 4. Flip gripper; 5. Wire straightening module; 7. Fixture; 11. Fixture; 12. Cable; 13. Feed trough; 14. Connecting groove; 20. Connecting block; 21. Rotary cylinder; 22. Fixing block; 23. Three-axis cylinder; 24. Third linear module; 25. Third moving block; 32. First moving block; 40. Gripper cylinder; 41. Gripper block; 50. Wire clamping gripper; 51. Second moving block; 52. Wire straightening gripper; 53. Left wire straightening wheel; 54. Right wire straightening wheel; 55. Annular groove; 61. First linear module; 71. Fixing plate; 72. Linear slide rail; 73. Pen-shaped cylinder. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0028] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.
[0029] It should be noted that this utility model is used for post-processing of photovoltaic junction boxes for wire straightening, and is used before wire clamping. The device is placed on a work platform and can be used alone or in conjunction with manual labor to perform wire clamping processing on photovoltaic junction boxes, or it can be used on a production line.
[0030] like Figures 1 to 5 As shown, a cable straightening device includes a fixed base 7 for wire connection and a feeding base 2; the top of the feeding base 2 is detachably provided with a fixture 11, and a photovoltaic junction box 1 is provided inside the fixture 11 for placing cables 12; one end of the feeding base 2 is provided with a first moving block 32, and a transfer gripper 3 is mechanically connected to the first moving block 32; a gripper cylinder 40 with a flipping gripper 4 is provided on the side of the feeding base 2; one end of the fixed base 7 is provided with a second moving block 51 with a wire clamping gripper 50, and one end of the wire clamping gripper 50 is provided with a cable straightening module 5; the cable straightening module 5 includes a cable straightening gripper 52, one side of the cable straightening gripper 52 is equipped with a rotatable left cable straightening wheel 53, and the other side of the cable straightening gripper 52 is equipped with a rotatable right cable straightening wheel 54; the left cable straightening wheel 53 and the right cable straightening wheel 54 are respectively designed with annular grooves 55 for clamping cables 12.
[0031] It is worth noting that one end of the fixture 11 is provided with a material groove 13 for limiting the photovoltaic junction box 1. The material groove 13 matches the shape and structure of the photovoltaic junction box 1, so that the root of the cable 12 in the photovoltaic junction box 1 is exposed, which is convenient for the transfer gripper 3 to hold accurately. The other end of the fixture 11 is provided with a connecting groove 14, and one end of the material feeding seat 2 is provided with a three-axis cylinder 23 with a connecting block 20. The connecting block 20 is used to insert into the connecting groove 14, so that the fixture 11 can cooperate with the connecting block 20. During the same motion, when the three-axis cylinder 23 moves the connecting block 20 upward, the fixture 11 rises with the connecting block 20 through the connecting groove 14; the fixture 11 is fixed on the feeding seat 2 by the insertion of the connecting groove 14 and the connecting block 20, preventing the photovoltaic junction box 1 from shifting. In actual use, the user can manually remove the fixture 11 or connect the three-axis cylinder 23 to an external air source to lift the fixture 11, so that the photovoltaic junction box 1 is exposed on the feeding seat 2, which is convenient for transferring the slag-clamped product laterally.
[0032] The bottom end of the feeding seat 2 is provided with a first linear module 61. The first moving block 32 is a slider mounted on the first linear module 61 and sliding in a first direction. In this embodiment, the first direction is the left-right direction. One end of the fixed seat 7 is provided with a fixed plate 71. The fixed plate 71 is provided with a linear slide rail 72. The second moving block 51 is a slider mounted on the linear slide rail 72 and sliding in a second direction. One end of the fixed seat 7 is provided with a pen-shaped cylinder 73 for controlling the movement of the second moving block 51. In this embodiment, the second direction is the front-back direction. The pen-shaped cylinder 73 pushes the second moving block 51 to move on the linear slide rail 72. Bearings are provided in both the left winding wheel 53 and the right winding wheel 54. The left winding wheel 53 and the right winding wheel 54 rotate on the winding clamp 52 through the bearings.
[0033] It should be noted that the feeding base 2 is equipped with a main control board. After the feeding base 2 is powered on, this embodiment can automatically operate the feeding base 2 and the fixing base 7. When performing the wire straightening operation, the device consists of five working steps. First, the photovoltaic junction box 1 is placed in the material trough 13 of the fixture 11, and the fixture 11 is snapped onto the feeding base 2, thus defining the root position of the cable 12 of the photovoltaic junction box 1. Second, the feeding base 2 is powered on, and the transfer gripper 3 automatically straightens the root of the cable 12. The user connects an external air source to the three-axis cylinder 23, causing the cylinder 23 to move upwards onto the connecting block 20. The fixture 11 rises along with the connecting block 20 via the connecting groove 14, and the transfer gripper 3 clamps the root of the cable 12, automatically moving the photovoltaic junction box 1 onto the flip gripper 4 for clamping. In the third step, the linear module 24 drives the rotary cylinder mounted on the slider 25 and the flip gripper 3 to retract to the cable clamping gripper 50 and rotate. In the fourth step, the cable clamping gripper 50 clamps the cable. At the root of cable 12, the cable straightening gripper 52 automatically clamps the cable 12 located behind the cable clamping gripper 50 via the lower left straightening wheel 53 and right straightening wheel 54; in the fifth step, the second moving block 51 automatically controls the left straightening wheel 53 and right straightening wheel 54 to move forward via the cable straightening gripper 52. The left straightening wheel 53 and right straightening wheel 54 roll against the outer surface of the cable 12 through the annular groove 55, straightening the cable 12 clamped in the middle; in this embodiment, a material trough 1 is provided on the upper part of the feeding seat 2. The fixture 11 of part 3 not only facilitates the positioning of the photovoltaic junction box 1, but also facilitates the movement of the photovoltaic junction box 1 into the flipping gripper 4 by gripping the root of the cable 12 with the transfer gripper 3; then the cable 12 is rolled and pressed by the annular groove 55 of the left straightening wheel 53 and the right straightening wheel 54, and then the second moving block 51 realizes the back and forth movement, thereby realizing the straightening and correction of the cable 12. This device realizes the straightening processing of the photovoltaic junction box 1 through the motion module, which greatly saves labor.
[0034] In this embodiment, the wire straightening device is used in the entire photovoltaic junction box 1 wire clamping processing line for subsequent assembly of the corresponding wire clamping module. In specific implementation, the wire straightening device can also be used independently, in conjunction with manual operation to conveniently realize the wire clamping process, which will not be described in detail here.
[0035] The flip-over gripper 4 includes two upper and lower clamping blocks 41 that can move relative to each other. In this embodiment, by setting the flip-over gripper 4 with clamping blocks 41, the photovoltaic junction box 1 can be effectively clamped while only clamping the outer shell of the photovoltaic junction box 1, without causing damage to the inside of the photovoltaic junction box 1, thus ensuring the performance of the photovoltaic junction box 1 after the wires are clamped. It is worth noting that the flipping gripper 4 is assembled on the opening and closing end of the gripper cylinder 40. One end of the gripper cylinder 40 is provided with an air port for connecting an external air source. The gripper cylinder 40 is a commonly used pneumatic actuator, widely used in machining, material handling, assembly and other processes on automated production lines. Using a standard gripper cylinder 40 can greatly save design and production costs while ensuring the performance of the final molded product. Furthermore, a third linear module 24 is provided on one side of the feeding seat 2. The third linear module 24 is provided with a third moving block 25 that drives the fixed plate 71 to move in coordination. In this embodiment, the third moving block 25 is a slider assembled on the third linear module 24 and sliding in the second direction. The first linear module 61, the linear slide rail 72, and the third linear module 24 are all electrically connected to the feeding seat 2.
[0036] A rotary cylinder 21 is provided on one side of the feeding seat 2. An air port for connecting an external air source is provided on one side of the rotary cylinder 21. A fixing block 22 for assembling the gripper cylinder 40 is provided at one end of the rotary cylinder 21. After the flipping gripper 4 clamps the photovoltaic junction box 1, the photovoltaic junction box 1 can be flipped by the rotary cylinder 21. In this way, when the wire clamping operation is performed, the photovoltaic junction box 1 is placed at an appropriate operating angle, which further reduces the difficulty of operation and enhances the user experience of this embodiment.
[0037] It should be specifically explained that in the second step, the transfer gripper 3 drives the photovoltaic junction box 1 to move to the right through the first linear module 61. At this time, the flip gripper 4 opens up and down, so that the photovoltaic junction box 1 and the flip gripper 4 are side by side and located between the two clamping blocks 41 of the flip gripper 4. The transfer gripper 3 drives the photovoltaic junction box 1 to move into the flip gripper 4 through the first linear module 61. The flip gripper 4 clamps the photovoltaic junction box 1. Then, the flip gripper 4 automatically retracts through the third linear module 24 and rotates through the rotary cylinder 21 at the same time, so that a gap is created between the flip gripper 4 and the straightening gripper 52. In the third step, the straightening gripper 52 opens to clamp the cable 12, so that the cable 12 is clamped between the left straightening wheel 53 and the right straightening wheel 54. The straightening gripper 52 moves forward so that the left and right straightening wheels can straighten and correct the cable 12. In this embodiment, the cable 12 is externally wrapped and clamped by the annular grooves 55 of the left and right cable rollers 53 and 54. The axial movement of the cable clamp 52 causes the portion of the cable 12 within the annular groove 55 to be fully corrected. At the same time, the corrected cable 12 is accurately positioned, leaving space for the cable 12 to be clamped, which facilitates the next clamping operation.
[0038] Working principle: First, place the photovoltaic junction box 1 in the material trough 13 of the fixture 11, and clamp the fixture 11 onto the feeding seat 2, thus defining the root position of the cable 12 of the photovoltaic junction box 1; Second, connect the feeding seat 2 to power, and the transfer gripper 3 automatically clamps the root position of the cable 12. The user connects the three-axis cylinder 23 to an external air source, causing the three-axis cylinder 23 to move the connecting block 20 upward. The fixture 11 rises along with the connecting block 20 through the connecting groove 14, and the transfer gripper 3 clamps the root position of the cable 12 and automatically moves the photovoltaic junction box 1 onto the flipping gripper 4 for clamping; Third, the third linear mold... Group 24 drives the rotary cylinder 21 and the flipping gripper 3 mounted on the slider 25 to move backward to the clamping gripper 50 and rotate; in the fourth step, the clamping gripper 50 clamps the root of the cable 12, and the straightening gripper 52 automatically clamps the cable 12 located behind the clamping gripper 50 through the lower left straightening wheel 53 and right straightening wheel 54; in the fifth step, the second moving block 51 automatically controls the left straightening wheel 53 and right straightening wheel 54 to move forward through the straightening gripper 52, and the left straightening wheel 53 and right straightening wheel 54 roll through the annular groove 55 and the outer surface of the cable 12 to straighten the cable 12 clamped in the middle.
[0039] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0040] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A wire straightening device, characterized in that: Includes a fixed base (7) for wire connection and a feeding base (2), and a photovoltaic junction box (1) provided on the feeding base (2) and equipped with a cable (12); The material feeding seat (2) is provided with a first moving block (32) at one end, and a transfer gripper (3) is provided on the first moving block (32). The material feeding seat (2) is provided with a flipping gripper (4) on the side. One end of the fixed base (7) is provided with a second movable block (51) with a wire clamping claw (50), and one end of the wire clamping claw (50) is provided with a wire straightening module (5); The cable straightening module (5) includes a cable straightening clamp (52). A rotatable left cable straightening wheel (53) is mounted on one side of the cable straightening clamp (52), and a rotatable right cable straightening wheel (54) is mounted on the other side of the cable straightening clamp (52). The left cable straightening wheel (53) and the right cable straightening wheel (54) are respectively designed with annular grooves (55) for clamping the cable (12).
2. The wire straightening device as described in claim 1, characterized in that: The top of the feeding seat (2) is detachably provided with a fixture (11) for fixing the photovoltaic junction box (1), and one end of the fixture (11) is provided with a material trough (13) for limiting the photovoltaic junction box (1).
3. The wire straightening device as described in claim 2, characterized in that: The maximum opening angle of the transfer gripper (3) is 180°.
4. The wire straightening device as described in claim 3, characterized in that: The side of the feeding seat (2) is provided with a gripper cylinder (40) for controlling the start and stop of the flipping gripper (4).
5. A wire straightening device as described in claim 4, characterized in that: The bottom end of the feeding seat (2) is provided with a first linear module (61), and the first moving block (32) is a slider assembled on the first linear module (61) and sliding in a first direction.
6. The wire straightening device as described in claim 5, characterized in that: One end of the fixed base (7) is provided with a fixed plate (71), and the fixed plate (71) is provided with a linear slide rail (72). The second moving block (51) is a slider mounted on the linear slide rail (72) and sliding in a second direction. One end of the fixed base (7) is provided with a pen-shaped cylinder (73) for controlling the movement of the second moving block (51).
7. A wire straightening device as described in claim 6, characterized in that: The flipping gripper (4) is provided with two gripping blocks (41) that can move relative to each other.
8. The wire straightening device as described in claim 7, characterized in that: The other end of the fixture (11) is provided with a connecting groove (14), and one side of the feeding seat (2) is provided with a three-axis cylinder (23) with a connecting block (20). The connecting groove (14) is used to insert into the connecting block (20).
9. A wire straightening device as described in claim 8, characterized in that: A rotary cylinder (21) is provided on one side of the feeding seat (2), and a fixing block (22) for assembling the gripper cylinder (40) is provided at one end of the rotary cylinder (21).
10. A wire straightening device as described in claim 9, characterized in that: The material feeding seat (2) has a third linear module (24) on one side, and the third linear module (24) has a third moving block (25) that is mechanically connected to the fixed plate (71).