Automatic arrangement mechanism for three fin interval arrangement and flat tube

Abstract

A kind of three fin interval arrangement and flat tube automatic arrangement mechanism belongs to heat exchanger production equipment technical field.The present application includes arrangement bed, left arrangement screw and right arrangement screw are installed on arrangement bed, left arrangement screw and right arrangement screw are arranged in parallel interval, arrangement bed is also provided with arrangement table top, arrangement table top is used to carry flat tube, left and right ends of flat tube respectively fall into the spiral groove of left arrangement screw and right arrangement screw, left arrangement screw and right arrangement screw are synchronously rotated to form fin slide-in channel between two flat tubes adjacent to front and back by the way of forward step advancing push of flat tube, first baffle assembly is set on arrangement bed in a way of being able to be lifted, and located at the far end side of fin slide-in channel, for blocking first fin when being lifted.The present application can solve the technical problems of low efficiency, poor precision and high labor intensity caused by manual placement of three-section fin in prior art.

Description

Technical Field

[0001] This invention belongs to the technical field of heat exchanger manufacturing equipment, specifically relating to a mechanism for automatic arrangement of three fins and flat tubes. Background Technology

[0002] With the continuous development of refrigeration technology, the structure of the condenser core, as the core component of the heat exchange system, is also constantly being optimized. The three-finned condenser core is a new type of stacked heat exchanger core. Its structural feature is that three fins are placed between two adjacent flat tubes, arranged at left, center, and right intervals. A short fin with a small wave height is sandwiched between the two outer longer fins. After assembly and brazing, the core needs to be folded into a three-layer structure. Due to the large number of parts involved and the precise arrangement requirements, its assembly difficulty is far higher than that of traditional condenser cores.

[0003] Currently, the assembly of three-finned condenser cores in China mainly relies on manual assembly tables operated by hand. Operators need to manually place the three long fins at predetermined intervals between the flat tubes, and then insert the short fins and process pads into the gaps between the long fins. This manual placement method is not only labor-intensive and inefficient, but the assembly quality is also greatly affected by the operator's skill level and fatigue level, easily leading to problems such as inconsistent fin spacing, fin misalignment, and scratches on the flat tubes or fin surfaces, ultimately affecting the heat exchange performance of the core and the product qualification rate. Summary of the Invention

[0004] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a mechanism for automatically arranging three fins at intervals and flat tubes. This invention solves the technical problems of low efficiency, poor accuracy, and high labor intensity caused by manual placement of the three fins in existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] This invention provides a three-finned, spaced-apart, flat tube automatic arrangement mechanism, characterized by comprising an arrangement bed on which a left arrangement screw and a right arrangement screw are mounted, the left and right arrangement screws being arranged parallel and spaced apart. The arrangement bed also includes an arrangement platform for supporting the flat tubes. The left and right ends of the flat tubes respectively fall into the helical grooves of the left and right arrangement screws. The left and right arrangement screws rotate synchronously to push the flat tubes forward, forming a fin sliding channel between two adjacent flat tubes. A first baffle assembly is vertically and elliptably mounted on the arrangement bed and located at the distal end of the fin sliding channel, for... When raised, it blocks the first fin. The second baffle assembly is vertically and vertically mounted on the arrangement bed and located in the middle section of the fin sliding channel. The second baffle assembly includes an electric roller and a second fin baffle. When raised, the electric roller conveys the second fin forward and moves the second fin towards the second fin baffle. The left air nozzle is mounted on the arrangement bed and close to the left arrangement screw. The air outlet of the left air nozzle faces upward on the arrangement table and is used to blow the third fin towards the left arrangement screw. The right air nozzle is mounted on the arrangement bed and close to the right arrangement screw. The air outlet of the right air nozzle faces upward on the arrangement table and is used to blow the first fin towards the right arrangement screw.

[0007] Furthermore, the first baffle assembly includes a front-end cylinder and a first fin baffle. The cylinder body of the front-end cylinder is fixed to the layout bed. The piston rod of the front-end cylinder extends vertically upward and is fixedly connected to the bottom of the first fin baffle. When the first fin baffle is raised, it is higher than the upper surface of the layout table to block the end of the first fin. When the first fin baffle is lowered, it is lower than the upper surface of the layout table to avoid the stepping of the first fin, the second fin, the third fin, and the flat tube.

[0008] Furthermore, when the first fin baffle rises, the first fin baffle blocks the first fin on the side facing the direction of the fin's arrival. When the first fin baffle falls, the first fin baffle is lower than the upper surface of the arrangement table, avoiding the stepping of the first fin, the second fin, the third fin, and the flat tube under the synchronous pushing of the left arrangement screw and the right arrangement screw.

[0009] Furthermore, the second baffle assembly also includes an intermediate cylinder and a mounting frame. The cylinder body of the intermediate cylinder is fixed to the arranging bed, and the piston rod of the intermediate cylinder extends vertically upward and is fixedly connected to the mounting frame. The electric roller is rotatably connected to the mounting frame. The second fin baffle is fixed to the side of the mounting frame near the fin feeding direction. When the electric roller and the second fin baffle are raised, they are higher than the upper surface of the arranging table. When the electric roller and the second fin baffle are lowered, they are lower than the upper surface of the arranging table to avoid the stepping of the first fin, the second fin, the third fin, and the flat tube.

[0010] Furthermore, when the electric roller and the second fin baffle are raised, the tops of both the electric roller and the second fin baffle are higher than the upper surface of the arrangement table. When the electric roller and the second fin baffle are lowered, both the electric roller and the second fin baffle are lower than the upper surface of the arrangement table, thus avoiding the stepping of the first fin, the second fin, the third fin, and the flat tube under the synchronous pushing of the left and right arrangement screws.

[0011] Furthermore, the bed frame is also equipped with a fin bridge, which is used to guide the first fin, the second fin, and the third fin to slide into the fin sliding channel in sequence.

[0012] Furthermore, from the farthest to the nearth of the operating position, the fins slide into the channel and are arranged in sequence with a first row of fin positions, a second row of fin positions, a third row of fin positions, and a fourth row of fin positions. The first row of fin positions corresponds to the fin bridge, and the left air nozzle is directly opposite the area between the third row of fin positions and the fourth row of fin positions.

[0013] Furthermore, the right air nozzle is positioned directly opposite the area between the second row of fins and the third row of fins.

[0014] The beneficial effects of the present invention.

[0015] This invention boasts a high degree of automation. Utilizing liftable first and second baffle assemblies, and aided by electric rollers for feeding, it completely replaces manual placement operations, achieving full automation of the three-section fin arrangement process. It offers high positioning accuracy. Lateral airflow from the left and right nozzles laterally aligns the first and third fins, ensuring that the fin ends are firmly against the reference surfaces of the left and right arrangement screws, thereby guaranteeing the accuracy and consistency of the spacing between the three fins. The structure is stable and reliable. All baffle assemblies, nozzles, and arrangement screws are integrated and mounted on the arrangement bed, resulting in a compact structure and clear operational logic. This facilitates integration with PLC and servo control systems, enabling long-term stable operation, significantly improving production efficiency, and reducing labor costs. Attached Figure Description

[0016] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 This is a top view of the structure of the present invention.

[0019] The markings in the diagram are as follows: 1 is the fin bridge, 2 is the left arrangement screw, 3 is the right arrangement screw, 4 is the arrangement platform, 5 is the flat tube, 6 is the middle cylinder, 7 is the electric roller, 8 is the second fin baffle, 9 is the front cylinder, 10 is the first fin baffle, 11 is the left air nozzle, 12 is the right air nozzle, 13 is the arrangement bed, 14 is the first fin, 15 is the second fin, 16 is the third fin, 17 is the fin sliding channel, 18 is the position of the first row of fins, 19 is the position of the second row of fins, 20 is the position of the third row of fins, and 21 is the position of the fourth row of fins. Detailed Implementation

[0020] As shown in the accompanying drawings, this embodiment provides a three-finned, spaced-apart, flat tube automatic arrangement mechanism, including an arrangement bed 13 as an overall support base. A left arrangement screw 2 and a right arrangement screw 3 are installed on the arrangement bed 13. The left arrangement screw 2 and the right arrangement screw 3 are arranged in parallel and spaced apart, and both the left arrangement screw 2 and the right arrangement screw 3 can be driven by a servo motor to rotate synchronously.

[0021] A finning table 4 is also provided on the finning bed 13, in the area between the left finning screw 2 and the right finning screw 3. During operation, the flat tubes 5 issued by the flat tube feeding mechanism fall onto the finning table 4 one by one, with the left and right ends of the flat tubes 5 falling into the spiral grooves of the left finning screw 2 and the right finning screw 3, respectively. The left finning screw 2 and the right finning screw 3 rotate synchronously under the drive of the servo motor, pushing the flat tubes 5 forward step by step. During the process of pushing multiple flat tubes 5, a space is formed between two adjacent flat tubes 5 above the finning table 4, extending in the left-right direction and with a fixed distance in the front-back direction. This space is the fin sliding channel 17.

[0022] A fin bridge 1 is also installed on the bed 13 to guide the first fin 14, the second fin 15, and the third fin 16, after forming and cutting, to slide into the fin sliding channel 17 in sequence. From the farthest to the nearth from the operating position, the fin sliding channel 17 is provided with a first row of fin positions 18, a second row of fin positions 19, a third row of fin positions 20, and a fourth row of fin positions 21 in sequence, with the first row of fin positions 18 directly opposite the fin bridge 1.

[0023] To position the first fin, a first baffle assembly is provided on the layout bed 13 in the area between the left layout screw 2 and the right layout screw 3. Specifically, the first baffle assembly is located at the distal end of the fin sliding channel 17 and includes a front-end cylinder 9 and a first fin baffle 10. The cylinder body of the front-end cylinder 9 is fixed to the layout bed 13, and the piston rod of the front-end cylinder 9 extends vertically upward, with the first fin baffle 10 fixedly connected to its end. The front-end cylinder 9 is used to drive the first fin baffle 10 to move up and down. When the piston rod extends, the first fin baffle 10 rises above the upper surface of the arrangement platform 4. The side end of the first fin baffle 10 facing the direction of the fins can abut against the end of the first fin 14 that slides in, restricting the first fin 14 from continuing to move. When the piston rod retracts, the first fin baffle 10 falls below the upper surface of the arrangement platform 4 to avoid the stepping of the first fin 14, the second fin 15, the third fin 16 and the flat tube 5 under the synchronous pushing of the left arrangement screw 2 and the right arrangement screw 3.

[0024] To achieve the positioning and auxiliary feeding of the second fin, a second baffle assembly is provided on the layout bed 13 in the area between the left layout screw 2 and the right layout screw 3. Specifically, the second baffle assembly is located in the middle section of the fin sliding channel 17 and includes an intermediate cylinder 6, a mounting frame, an electric roller 7, and a second fin baffle 8. The cylinder body of the intermediate cylinder 6 is fixed to the layout bed 13, and the piston rod of the intermediate cylinder 6 extends vertically upward, with the mounting frame fixedly connected to the end of the piston rod. The electric roller 7 and the second fin baffle 8 are mounted on the mounting frame, with the second fin baffle 8 fixed to the side of the mounting frame closest to the fin feeding direction. The electric roller 7 is rotatably connected to the mounting frame. The intermediate cylinder 6 is used to drive the entire mounting frame and the electric roller 7 and the second fin baffle 8 on the mounting frame to rise and fall. When the piston rod extends, the electric roller 7 and the second fin baffle 8 rise, and the tops of the electric roller 7 and the second fin baffle 8 are both higher than the upper surface of the arrangement table 4. At this time, the electric roller 7 rotates, which can contact and drive the second fin 15 located above the electric roller 7 to move forward until the end of the second fin 15 approaches the side end face of the second fin baffle 8 and stops. When the piston rod retracts, the electric roller 7 and the second fin baffle 8 fall, and the electric roller 7 and the second fin baffle 8 are both lower than the upper surface of the arrangement table 4 to avoid the stepping of the fins and flat tubes 5.

[0025] To ensure accurate lateral positioning and lateral blowing of the first and third fins, an air-blowing device is installed on the arrangement bed 13. A left air nozzle 11 is installed on the side of the arrangement bed 13 near the left arrangement screw 2. The left air nozzle 11 faces the area between the third row fin position 20 and the fourth row fin position 21, with its outlet facing this area. It blows the third fin 16 in the third row towards the left arrangement screw 2, bringing the third fin 16 close to the left arrangement screw 2. A right air nozzle 12 is installed on the side of the arrangement bed 13 near the right arrangement screw 3. The right air nozzle 12 faces the area between the second row fin position 19 and the third row fin position 20, with its outlet facing this area. It blows the first fin 14 in the second row towards the right arrangement screw 3, bringing the first fin 14 close to the right arrangement screw 3.

[0026] The work process is as follows: In the initial state, the flat tube feeding mechanism feeds out flat tubes 5 one by one. The flat tubes 5 land on the arrangement table 4, and their left and right ends fall into the spiral grooves of the left arrangement screw 2 and the right arrangement screw 3. The left arrangement screw 2 and the right arrangement screw 3 rotate synchronously, pushing the flat tubes 5 forward. Between the two flat tubes 5, a fin sliding channel 17 is formed above the arrangement table 4. From the operating position from far to near, the fin sliding channel 17 sequentially forms the first row of fin positions 18, the second row of fin positions 19, the third row of fin positions 20, and the fourth row of fin positions 21. The first row of fin positions 18 is directly opposite the fin bridge 1.

[0027] Subsequently, the first fin 14, the second fin 15, and the third fin 16, after being shaped and cut, are guided by the fin bridge 1 and slide sequentially into the fin sliding channel 17. At this time, the piston rod of the front cylinder 9 is in the extended state, the first fin baffle 10 rises and is higher than the upper surface of the arrangement table 4, and the end of the first fin 14 touches the first fin baffle 10 and is blocked, stopping at the set position.

[0028] Next, the right air nozzle 12 is connected to the air source and blows air into the area between the second row of fin positions 19 and the third row of fin positions 20, blowing the first fin 14 toward the right-hand arrangement screw 3, so that the end of the first fin 14 is close to the right-hand arrangement screw 3.

[0029] Simultaneously, the piston rod of the intermediate cylinder 6 extends, driving the electric roller 7 and the second fin baffle 8 to rise above the upper surface of the arrangement platform 4. The electric roller 7 rotates, using friction to assist in driving the second fin 15 forward until the end of the second fin 15 abuts against the second fin baffle 8 and stops.

[0030] Subsequently, the left air nozzle 11 is connected to the air source and blows air into the area between the third row of fin positions 20 and the fourth row of fin positions 21, blowing the third fin 16 toward the left-side arrangement screw 2, so that the end of the third fin 16 is close to the left-side arrangement screw 2.

[0031] At this point, the first fin 14, the second fin 15, and the third fin 16 have completed precise left, center, and right spacing positioning between the front and rear flat tubes 5. After positioning, the piston rod of the front cylinder 9 retracts, and the first fin baffle 10 falls below the upper surface of the arrangement table 4; the piston rod of the middle cylinder 6 retracts, and the electric roller 7 and the second fin baffle 8 fall below the upper surface of the arrangement table 4. At this time, the left arrangement screw 2 and the right arrangement screw 3 rotate synchronously by one step, pushing the group of arranged flat tubes 5 and the first fin 14, the second fin 15, and the third fin 16 forward one work position, completing a complete work cycle.

[0032] The above-mentioned process is repeated cyclically, which can continuously form multiple sets of flat tube and fin assemblies with precise left, middle and right fin intervals on the arrangement table 4, laying the foundation for subsequent processes such as loading short fins, process pads and manifolds.

[0033] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

Claims

1. A mechanism for automatically arranging three finned tubes at intervals and flat tubes, characterized in that, The system includes a layout bed (13), on which a left layout screw (2) and a right layout screw (3) are installed. The left layout screw (2) and the right layout screw (3) are arranged parallel to each other and spaced apart. The layout bed (13) is also provided with a layout table (4), which is used to support flat tubes (5). The left and right ends of the flat tubes (5) fall into the spiral grooves of the left layout screw (2) and the right layout screw (3), respectively. The left layout screw (2) and the right layout screw (3) rotate synchronously to push the flat tubes (5) forward, so that a fin sliding channel (17) is formed between two adjacent flat tubes (5). A first baffle assembly is detachably and liftably mounted on the layout bed (13) and located at the far end of the fin sliding channel (17) to block the first fin (14) when it is raised. A second baffle assembly is detachably and liftably mounted on the layout bed (13). The second baffle assembly is located on the arrangement bed (13) and in the middle section of the fin sliding channel (17). The second baffle assembly includes an electric roller (7) and a second fin baffle (8). When raised, the electric roller (7) conveys the second fin (15) forward and moves the second fin (15) towards the second fin baffle (8). The left air nozzle (11) is located on the arrangement bed (13) and close to the fin sliding channel (17). The left arrangement screw (2) has its air outlet facing upwards on the arrangement table (4) and is used to blow the third fin (16) toward the left arrangement screw (2). The right air outlet (12) is located on the arrangement bed (13) and close to the right arrangement screw (3). The air outlet of the right air outlet (12) faces upwards on the arrangement table (4) and is used to blow the first fin (14) toward the right arrangement screw (3).

2. The automatic arrangement mechanism for three finned tubes with spacing as described in claim 1, characterized in that, The first baffle assembly includes a front cylinder (9) and a first fin baffle (10). The cylinder body of the front cylinder (9) is fixed on the layout bed (13). The piston rod of the front cylinder (9) extends vertically upward and is fixedly connected to the bottom of the first fin baffle (10). When the first fin baffle (10) rises, it is higher than the upper surface of the layout table (4) to block the end of the first fin (14). When the first fin baffle (10) falls, it is lower than the upper surface of the layout table (4) to avoid the stepping of the first fin (14), the second fin (15), the third fin (16), and the flat tube (5).

3. The automatic arrangement mechanism for three finned tubes with spacing as described in claim 2, characterized in that, When the first fin baffle (10) rises, the first fin baffle (10) blocks the first fin (14) on the side end facing the direction of the fin. When the first fin baffle (10) falls, the first fin baffle (10) is lower than the upper surface of the arrangement platform (4) to avoid the stepping of the first fin (14), the second fin (15), the third fin (16) and the flat tube (5) under the synchronous push of the left arrangement screw (2) and the right arrangement screw (3).

4. The automatic arrangement mechanism for three finned tubes with spacing and flat tubes according to claim 1, characterized in that, The second baffle assembly also includes an intermediate cylinder (6) and a mounting frame. The cylinder body of the intermediate cylinder (6) is fixed on the layout bed (13). The piston rod of the intermediate cylinder (6) extends vertically upward and is fixedly connected to the mounting frame. The electric roller (7) is rotatably connected to the mounting frame. The second fin baffle (8) is fixed on the side of the mounting frame near the fin feeding direction. When the electric roller (7) and the second fin baffle (8) are raised, they are higher than the upper surface of the layout table (4). When the electric roller (7) and the second fin baffle (8) are lowered, they are lower than the upper surface of the layout table (4) to avoid the stepping of the first fin (14), the second fin (15), the third fin (16), and the flat tube (5).

5. The automatic arrangement mechanism for three finned tubes with spacing and flat tubes according to claim 4, characterized in that, When the electric roller (7) and the second fin baffle (8) are raised, the tops of the electric roller (7) and the second fin baffle (8) are higher than the upper surface of the arrangement table (4). When the electric roller (7) and the second fin baffle (8) are lowered, the electric roller (7) and the second fin baffle (8) are lower than the upper surface of the arrangement table (4), avoiding the stepping of the first fin (14), the second fin (15), the third fin (16) and the flat tube (5) under the synchronous pushing of the left arrangement screw (2) and the right arrangement screw (3).

6. The automatic arrangement mechanism for three finned tubes with spacing as described in claim 1, characterized in that, The bed frame (13) is also equipped with a fin bridge (1), which is used to guide the first fin (14), the second fin (15) and the third fin (16) to slide into the fin sliding channel (17) in sequence.

7. The automatic arrangement mechanism for three finned tubes with spacing as described in claim 6, characterized in that, From the farthest to the nearth of the operating position, the fin sliding channel (17) is provided with a first row of fin positions (18), a second row of fin positions (19), a third row of fin positions (20) and a fourth row of fin positions (21). The first row of fin positions (18) is directly opposite the fin bridge (1), and the left air nozzle (11) is directly opposite the area between the third row of fin positions (20) and the fourth row of fin positions (21).

8. The automatic arrangement mechanism for three finned tubes with spacing as described in claim 7, characterized in that, The right air nozzle (12) is located in the area between the second row of fin positions (19) and the third row of fin positions (20).

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