Processing and shearing equipment for connecting wire of air conditioner

Abstract

The utility model discloses an air conditioner connecting line processing and shearing device, a tension adjusting device comprises a lifting operation table and a lifting air cylinder for driving the lifting operation table to lift, and an adjusting pulley is rotatably mounted on an adjusting seat; the adjusting cylinder drives the adjusting seat to be close to or away from the corresponding fixed pulley so as to maintain the tension of the wire rod to be stable. The pulley block is integrated on the liftable lifting operation table, and the adjusting seat driven by the adjusting cylinder is combined, so that the pulley block can dynamically follow the wire height change caused by the release point change of the unwinding disc, the pulley block and the wire path are always kept on the same horizontal plane, and the inclination or bending of the wire due to the height difference is effectively avoided; the friction damage risk is reduced, the response precision and stability of tension adjustment are remarkably improved, it is ensured that tension is uniform and stable in the wire conveying process, meanwhile, equipment abrasion is reduced, and the machining efficiency and the product quality consistency are improved.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, and in particular to an air conditioner connection cable processing and shearing device. Background Technology

[0002] In the automated processing of air conditioner connecting cables, unwinding the wire is the primary step. Traditional or existing unwinding mechanisms typically include a base, an unwinding reel to hold the wire roll, a tension control device, and guide rollers or pulley systems to guide the wire path. However, these existing unwinding mechanisms have a significant drawback that affects processing quality: the height of the release point (i.e., the position where the wire leaves the reel) of the wire roll wound on the unwinding reel continuously changes with factors such as decreasing roll diameter or thickness variations. This variation causes the initial path height of the wire entering the subsequent tension adjustment device and pulley system to fluctuate continuously. For example, the installation position of the unwinding reel is usually fixed, and its axis height remains constant. When the wire roll is initially fully wound, its diameter is at its largest, and the unwinding point is at its highest; as the wire is continuously unwound, the roll diameter gradually decreases, and the unwinding point continuously decreases; when the unwinding reel is laid flat, the release point also moves up and down during the unwinding process. In contrast, the installation height of the pulley system used to guide the wire, apply and adjust tension (especially the first fixed pulley or guide wheel at its inlet end) is also relatively fixed. This results in a sloping, constantly changing angle suspension segment of the wire between the varying unwinding point height and the fixed-height pulley system inlet.

[0003] The problems caused by this inconsistency in height and path slant include:

[0004] 1. Tension Fluctuations and Control Inaccuracies: Changes in the tilt angle of the wire path itself introduce additional, non-linear tension components, interfering with the accuracy of tension detection device readings. This makes it difficult for subsequent tension adjustment devices (whether mechanical or pneumatic / electric) to accurately sense and maintain the stable tension required by the wire, resulting in continuous fluctuations in actual tension during unwinding.

[0005] II. Wire Wear and Surface Damage: When wires enter the pulley system at an angle, especially when the angle is large, the contact between the wire and the pulley groove is no longer an ideal envelope, the contact area decreases, and the local pressure increases. This can easily cause scratches, indentations, or even deformation of the wire (especially the outer insulation layer), affecting product quality and electrical performance.

[0006] 3. Poor operational stability: Path deviation caused by changes in height may cause the wire to run off course, jump, or shake in the pulley groove, increasing the instability of equipment operation and even causing faults such as wire detachment or jamming, affecting production efficiency and equipment reliability.

[0007] IV. Limiting the tension adjustment effect: Even if the tension adjustment device (the lifting operating platform and adjusting pulley as claimed in the claims) is well-designed and can respond to tension changes, drastic changes in the height of the inlet path will continuously introduce new disturbance sources, weakening the compensation effect of the adjustment device and making it difficult to achieve the optimal tension stability.

[0008] Therefore, the inability to dynamically match the wire release point height of the unwinding reel with the pulley block inlet height in existing technologies is one of the key bottlenecks restricting the stability of the unwinding tension, the wire protection effect, and the overall processing accuracy of air conditioning connection cables. Clearly, existing technologies require further improvement. Utility Model Content

[0009] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an air conditioner connection cable processing and cutting device to solve one or more problems existing in the prior art.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: an air conditioner connecting wire processing and cutting device, comprising a wire unwinding mechanism for air conditioner connecting wires, wherein an unwinding reel, a tension adjusting device, and a pulley block are mounted on a base of the unwinding mechanism; the unwinding reel is rotatably mounted on the base; the tension adjusting device includes a lifting operating platform and a lifting cylinder for driving the lifting operating platform to move up and down; the pulley block includes multiple fixed pulleys and multiple adjusting pulleys; the fixed pulleys and adjusting pulleys are arranged alternately on the left and right sides of the wire path along the wire path; the fixed pulleys are rotatably mounted on the lifting operating platform; an adjusting seat is fixed on the lifting operating platform, and the adjusting pulley is rotatably mounted on the adjusting seat; the adjusting cylinder drives the adjusting seat to move closer to or further away from the corresponding fixed pulley to maintain stable wire tension.

[0011] In one embodiment of the present invention, a tension detection camera is provided on the base, and the tension detection camera is located on the discharge side of the pulley group and facing the wire.

[0012] In one embodiment of the present invention, the lifting operating platform is provided with guide frames on opposite sides, the guide frames are respectively located at the feed inlet and discharge outlet of the pulley block, and the guide frames are provided with V-shaped guide grooves for limiting the running path of the wire.

[0013] In one embodiment of the present invention, the lifting operating platform is provided with at least one set of auxiliary sliding rollers, which are located between the pulley block and the guide frame to assist in the smooth transition of the wire.

[0014] In one embodiment of the present invention, the lifting operating platform is provided with a pair of L-shaped limiting plates, which are arranged opposite each other to form a clamping space. The adjusting seat is slidably fitted into the clamping space and moves along the extending direction of the L-shaped limiting plates.

[0015] In one embodiment of the present invention, a T-slot is provided on the side of the adjusting seat away from the adjusting pulley, and the piston rod of the adjusting cylinder is detachably connected to the T-slot via a floating joint.

[0016] In one embodiment of the present invention, a guide hole is provided at the corner edge of the lifting operating platform, and a guide post that cooperates with the guide hole is provided at the corresponding position of the base.

[0017] In one embodiment of the present invention, an arc-shaped guide plate for guiding wire output is fixed at the end of the base, and the arc-shaped surface of the arc-shaped guide plate is bent toward the wire output direction.

[0018] As described above, the air conditioning cable processing and shearing equipment of this utility model has the following beneficial effects: By integrating the pulley block into a liftable operating platform and cooperating with the lifting cylinder to drive the operating platform, real-time height synchronization between the pulley block and the cable is achieved. This design allows the pulley block to dynamically follow the changes in the cable output height caused by the change in the release point of the unwinding reel, always keeping the pulley block and the cable path on the same horizontal plane, effectively avoiding the problem of cable tilting or bending caused by height differences in traditional equipment. Therefore, the cable always passes through the pulley block in a stable posture during the conveying process, reducing the risk of surface damage caused by friction on non-horizontal sections, while significantly improving the response accuracy of tension adjustment, ensuring stable and uniform tension during processing. Furthermore, the coordinated movement of the lifting operating platform and the adjusting seat simplifies the adaptive adjustment of the equipment to changes in cable position, reduces the need for manual intervention, and improves processing efficiency and product quality consistency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the air conditioner connection cable processing and cutting equipment provided by this utility model;

[0021] Figure 2 A partial structural schematic diagram of the air conditioner connection cable processing and cutting equipment provided by this utility model;

[0022] Figure 3 Another structural schematic diagram of the air conditioner connection cable processing and cutting equipment provided by this utility model;

[0023] Figure 4 for Figure 3 A magnified view of detail A.

[0024] Component designation explanation

[0025] 1. Wire rod; 2. Unwinding reel; 3. Base; 4. Lifting operating platform; 5. Lifting cylinder; 6. Fixed pulley; 7. Adjusting pulley; 8. Adjusting seat; 9. Adjusting cylinder; 10. Tension detection camera; 11. Guide frame; 12. Auxiliary sliding roller; 13. L-shaped limit plate; 14. T-slot; 15. Guide hole; 16. Guide column; 17. Arc-shaped guide plate. Detailed Implementation

[0026] This utility model provides an air conditioner connecting wire processing and cutting device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. In the description of this utility model, it should be understood that the terms "up, down, left, right," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Please see Figures 1 to 4This utility model provides an air conditioner connecting wire processing and cutting device, including an unwinding mechanism for the wire 1 to be processed for the air conditioner connecting wire. An unwinding reel 2, a tension adjusting device, and a pulley system are mounted on a base 3 of the unwinding mechanism. The unwinding reel 2 is rotatably mounted on the base 3. The tension adjusting device includes a lifting operating platform 4 and a lifting cylinder 5 for driving the lifting operating platform 4 to move up and down. The pulley system includes multiple fixed pulleys 6 and multiple adjusting pulleys 7. The fixed pulleys 6 and adjusting pulleys 7 are arranged alternately on the left and right sides of the wire 1 path. The fixed pulleys 6 are rotatably mounted on the lifting operating platform 4. An adjusting seat 8 is fixed on the lifting operating platform 4, and the adjusting pulleys 7 are rotatably mounted on the adjusting seat 8. The adjusting cylinder 9 drives the adjusting seat 8 to move closer to or away from the corresponding fixed pulley 6 to maintain stable tension of the wire 1. Specifically, there are three fixed pulleys 6 and two adjustable pulleys 7. By alternating their arrangement, a composite guide structure of "fixed-adjusted-fixed-adjusted-fixed" is formed. The axial displacement of the adjustable pulleys 7 is used to dynamically compensate for the tension fluctuations caused by changes in the extension or winding speed of the wire 1. At the same time, the fixed pulleys 6 provide basic support. The two work together to achieve closed-loop tension control, effectively preventing the wire 1 from becoming too loose or too tight.

[0028] In this embodiment, the unwinding reel 2 is placed horizontally. When the wire 1 is unwound, the release point will move up and down repeatedly. The lifting cylinder 5 will control the lifting operating table 4 to rise and fall accordingly. The displacement sensor monitors the change in the height of the release point in real time and feeds the signal back to the control system of the lifting cylinder 5. The operating table 4 is driven to compensate for the displacement of the release point at a synchronous rate, thereby keeping the wire 1 always within the optimal wrap angle range of the pulley block 3 and avoiding sudden tension changes or pulley derailment problems caused by fluctuations in the release point.

[0029] A tension detection camera 10 is mounted on the base 3, located on the discharge side of the pulley assembly and facing the wire 1. The tension detection camera 10 on the base 3 allows for real-time monitoring of the tension state of the wire 1 on the discharge side of the pulley assembly. Visual feedback quickly identifies tension fluctuations or anomalies, providing precise control data for the tension adjustment device, reducing the need for manual intervention, improving automation, and further ensuring the stability and reliability of the tension during wire 1 processing. As a core non-contact monitoring unit, the tension detection camera 10 significantly enhances the intelligence and accuracy of tension control: combined with a high-speed image sensor, it continuously captures the real-time shape (such as sag, vibration amplitude, and trajectory deviation) of the wire 1 on the discharge side of the pulley assembly at a millisecond-level sampling rate. Through embedded visual algorithms, the physical deformation of the wire 1 is directly quantified into dynamic tension values, generating a real-time data stream. Compared to traditional mechanical tension sensors, its non-contact characteristic completely eliminates friction interference or mechanical hysteresis, making it particularly suitable for easily damaged air conditioning connection wires. The detection data is instantly transmitted to the control system. After being compared with the preset tension threshold, the system precisely drives the adjusting cylinder 9 to compensate for tension or links the lifting cylinder 5 to correct height deviations, forming a high-response, zero-wear closed-loop feedback loop. This not only significantly reduces the risk of wire breakage and slack, but also provides quantitative basis for process optimization with the accumulated tension spectrum data, making it a core sensing node to ensure high-quality wire shearing.

[0030] The lifting platform 4 is equipped with guide frames 11 on opposite sides. The guide frames 11 are located at the feed inlet and discharge outlet of the pulley system, respectively, and each guide frame 11 has a V-shaped guide groove to limit the running path of the wire 1. The guide frames 11 with V-shaped guide grooves on both sides of the lifting platform 4 effectively constrain the running path of the wire 1 at the feed inlet and discharge outlet, preventing the wire 1 from shifting left or right or detaching from the pulley system, reducing friction loss and tension fluctuations caused by the swaying of the wire 1. Simultaneously, the V-shaped groove design helps the wire 1 maintain a centered position, improving conveying stability and processing accuracy. To further improve the conveying stability and processing accuracy of the wire 1, the lifting platform 4 is equipped with at least one set of auxiliary sliding rollers 12. These rollers are located between the pulley system and the guide frames 11 to assist in the smooth transition of the wire 1. The auxiliary roller 12 can provide additional support points for the wire 1, relieve the span tension between the pulley block and the guide frame 11, reduce the stress concentration of the wire 1 due to its own weight or bending, reduce the risk of surface damage, and at the same time help the wire 1 to smoothly transition to the guide frame 11, avoiding jamming or shaking.

[0031] The lifting operating platform 4 is provided with pairs of L-shaped limiting plates 13, which are arranged opposite each other to form a clamping space. The adjusting seat 8 is slidably fitted into the clamping space and moves along the extension direction of the L-shaped limiting plates 13. By forming a clamping space with pairs of L-shaped limiting plates 13, a stable sliding guide can be provided for the adjusting seat 8, restricting its movement along a preset direction, avoiding deviation or tilting during adjustment, improving the alignment accuracy of the adjusting pulley 7 and the fixed pulley 6, and facilitating the disassembly and maintenance of the adjusting seat 8, thereby enhancing the reliability and durability of the equipment structure. The adjusting seat 8 has a T-slot 14 on the side opposite to the adjusting pulley 7, and the piston rod of the adjusting cylinder 9 is detachably connected to the T-slot 14 through a floating joint. A T-slot 14 is opened on the adjusting seat 8 and the piston rod of the adjusting cylinder 9 is connected through a floating joint. This enables a flexible connection between the adjusting seat 8 and the cylinder, allowing for slight angular deflection to adapt to equipment vibration or installation errors, reducing the impact of rigid stress on the adjusting mechanism, and facilitating quick disassembly and assembly of the adjusting seat 8, simplifying the maintenance process and extending the service life of the components.

[0032] To improve the stability of the lifting platform 4 during the lifting process, guide holes 15 are provided at the corner edges of the lifting platform 4, and guide posts 16 that cooperate with the guide holes 15 are provided at corresponding positions on the base 3. The guide holes 15 at the corners of the lifting platform 4, which cooperate with the guide posts 16 on the base 3, effectively limit the lateral displacement of the lifting platform 4, preventing it from swaying due to uneven force or vibration, enhancing the stability and verticality of the lifting process, ensuring precise alignment of the pulley block and the wire 1, and improving the overall operating accuracy and safety of the equipment.

[0033] An arc-shaped guide plate 17 for guiding the output of wire 1 is fixed to the end of the base 3. The arc-shaped surface of the arc-shaped guide plate 17 is bent towards the output direction of wire 1. The arc-shaped guide plate 17 at the end of the base 3 can guide the wire 1 to output smoothly through its curved surface, reduce friction and scratching between the wire 1 and the guide plate, prevent surface damage, optimize the output direction of wire 1, avoid tangling or jamming, and improve processing efficiency and yield.

[0034] The specific working process of the air conditioner connection cable processing and cutting equipment is as follows: When the equipment starts, the wire 1 on the unwinding reel 2 is released. Wire 1 first passes through the V-groove of the guide frame 11 on the feeding side of the lifting operating platform 4 for positioning, and then enters the pulley group. At this time, the tension detection camera 10 monitors the sag of wire 1 at the pulley group outlet in real time. When an abnormal tension is detected, the system triggers two-stage adjustment: If the wire 1 inlet height is reduced due to the unwinding of the unwinding reel 2 (i.e., the release point height is reduced), the lifting cylinder 5 drives the lifting operating platform 4 to descend as a whole. The platform is kept level by the precise guidance of the corner guide column 16 and the guide hole 15, so that the pulley group inlet height always matches the unwinding point position, eliminating path tilt; the adjusting cylinder 9 pushes the adjusting seat 8 to slide along the L-shaped limit plate 13, changing the distance between the adjusting pulley 7 and the fixed pulley 6. The floating joint adaptively compensates for displacement deviation, quickly tightens or releases the wrap angle length of wire 1, and realizes instantaneous tension correction. The wire 1 forms an S-shaped path in the staggered pulley block to enhance friction control. After being smoothly transitioned to the discharge side guide frame 11 by the auxiliary sliding roller 12, it is finally guided out by the arc-shaped guide plate 17 with a gradual curvature, avoiding bending damage to the wire 1 throughout the process.

[0035] In summary, the air conditioner connecting cable processing and cutting equipment of this utility model has many significant advantages, as the pulley group on the lifting operating platform 4 can always maintain the same height as the wire 1. First, this design ensures that the wire 1 maintains a stable and flat running state during unwinding and subsequent processing, effectively avoiding problems such as slackness, twisting, or tangling of the wire 1 caused by height differences, greatly improving processing accuracy and quality. Regarding tension adjustment, when the lifting operating platform 4 is raised or lowered, the height of the pulley group is adjusted synchronously, allowing the tension adjustment device to apply appropriate tension to the wire 1 more precisely, maintaining stable tension, which is crucial for ensuring the consistency of the processed dimensions and performance of the air conditioner connecting cable. Furthermore, since the pulley group is always at the same height as the release point of the wire 1, the contact between the wire 1 and the pulley is smoother and more natural, reducing unnecessary friction and wear. This not only extends the service life of the pulley but also helps reduce noise during equipment operation, improving the overall operating efficiency and reliability of the equipment. This allows it to better adapt to the processing needs of air conditioner connecting cables 1 of different specifications and lengths, enhancing the equipment's versatility and practicality. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0036] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. An air conditioner connecting wire processing and cutting device, characterized in that, The unwinding mechanism includes a wire (1) to be processed for air conditioning connection, wherein an unwinding reel (2), a tension adjusting device, and a pulley block are mounted on a base (3) of the unwinding mechanism. The unwinding reel (2) is rotatably mounted on the base (3); The tension adjustment device includes a lifting operating platform (4) and a lifting cylinder (5) for driving the lifting operating platform (4) to rise and fall. The pulley group includes multiple fixed pulleys (6) and multiple adjustable pulleys (7); the fixed pulleys (6) and adjustable pulleys (7) are arranged alternately on the left and right sides of the wire (1) path; The fixed pulley (6) is rotatably mounted on the lifting operating platform (4); An adjustment seat (8) is fixed on the lifting operating platform (4), and the adjustment pulley (7) is rotatably mounted on the adjustment seat (8); The adjusting cylinder (9) drives the adjusting seat (8) to move closer to or away from the corresponding fixed pulley (6) to maintain the tension of the wire (1) stable.

2. The air conditioner connecting wire processing and cutting equipment according to claim 1, characterized in that, A tension detection camera (10) is provided on the base (3). The tension detection camera (10) is located on the discharge side of the pulley group and is positioned towards the wire (1).

3. The air conditioner connecting wire processing and cutting equipment according to claim 1, characterized in that, The lifting platform (4) is provided with guide frames (11) on both sides. The guide frames (11) are located at the feed inlet and discharge outlet of the pulley block, respectively, and the guide frames (11) are provided with V-shaped guide grooves for limiting the running path of the wire (1).

4. The air conditioner connecting wire processing and cutting equipment according to claim 3, characterized in that, The lifting platform (4) is provided with at least one set of auxiliary sliding rollers (12), which are located between the pulley block and the guide frame (11) to assist the wire (1) to transition smoothly.

5. The air conditioner connecting wire processing and cutting equipment according to claim 1, characterized in that, The lifting operating platform (4) is provided with a pair of L-shaped limiting plates (13). The L-shaped limiting plates (13) are arranged opposite each other to form a clamping space. The adjusting seat (8) is slidably fitted into the clamping space and moves along the extension direction of the L-shaped limiting plates (13).

6. The air conditioner connecting cable processing and cutting equipment according to claim 1, characterized in that, The adjusting seat (8) has a T-slot (14) on the side away from the adjusting pulley (7), and the piston rod of the adjusting cylinder (9) is detachably connected to the T-slot (14) through a floating joint.

7. The air conditioner connecting wire processing and cutting equipment according to claim 1, characterized in that, The corner edge of the lifting platform (4) is provided with a guide hole (15), and the base (3) is provided with a guide post (16) that cooperates with the guide hole (15) at the corresponding position.

8. The air conditioner connecting wire processing and cutting equipment according to claim 1, characterized in that, The base (3) is fixed with an arc-shaped guide plate (17) for guiding the output of the wire (1), and the arc-shaped surface of the arc-shaped guide plate (17) is bent toward the output direction of the wire (1).

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