Method and apparatus for automatically threading fins of an air conditioner

Abstract

The present application relates to the technical field of air conditioner production, and more particularly to a method and device for automatically threading fins into copper pipes, comprising the following steps: Step 1, preparing a copper pipe matrix, fixing multiple prefabricated copper pipes at intervals to form a copper pipe matrix; Step 2, positioning the copper pipe matrix, moving the prepared copper pipe matrix in Step 1 under the fin punching device so that the punched fins can be directly sleeved onto the copper pipes of the copper pipe matrix; Step 3, fin carding, using a preset carding device to card the fins on the copper pipes so that the fins are moved from top to bottom to a preset position; Step 4, discharging the copper pipe matrix, moving the copper pipe matrix with the threaded fins out from under the fin punching device, and then removing the entire copper pipe matrix to complete the automatic threading operation of the copper pipes. In summary, the fins can be quickly and smoothly threaded onto the copper pipes, improving production efficiency, reducing the scrap rate, and enhancing the competitiveness of the factory.

Description

Technical Field

[0001] This invention relates to the technical field of air conditioner manufacturing, and in particular to a method and equipment for automatically threading air conditioner fins through tubes. Background Technology

[0002] Air conditioners are mainly composed of four functional components (evaporator, condenser, capillary tube, and compressor). The evaporator and condenser are mainly assembled from fins and copper tubes. The copper tubes and fins are produced separately, and then transferred to the same workstation for fin threading. The long U-shaped tube is inserted into the fins. The threading process is the bottleneck in the entire air conditioning industry. Manual threading involves placing the fins on a threading platform, picking up the tube, aligning it with the holes on the fins with one hand, and pushing the tube into the corresponding fin holes with the other hand.

[0003] During manual tube insertion, it is difficult to ensure that the copper tube passes through all the stacked fins sequentially when the U-shaped tube is passed through them. Furthermore, varying degrees of resistance between the copper tube and the fins can occur due to differences in the applied force, thus requiring a high degree of coordination from the operator. Manual tube insertion suffers from numerous problems, including low efficiency, high skill requirements, and high labor costs.

[0004] Later, some automatic tube-threading technologies appeared on the market, mainly divided into two processes: horizontal segmented tube threading and vertical fin stacking intensive tube threading.

[0005] The current horizontal fin-splitting automatic tube-threading process and equipment only realizes the tube-threading action of the fins. The removal of the fins from the punch press receiving table and the conveying and loading / unloading before and after tube threading still require manual operation. Both the degree of automation and production efficiency are still far from satisfactory.

[0006] While vertical fin stacking intensive tube threading technology has a high degree of automation, it has a complex structure, too many parts, and a relatively slow threading speed. It often fails to thread smoothly, resulting in a high scrap rate.

[0007] Therefore, how to provide a method and equipment for automatically threading air conditioner fins onto copper tubes, so that the fins can be threaded onto the copper tubes quickly and smoothly, thereby improving production efficiency and reducing scrap rate, is a technical problem that needs to be solved. Summary of the Invention

[0008] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0009] This invention provides a method for automatically threading tubes through air conditioner fins, comprising the following steps:

[0010] Step 1: Prepare a copper tube matrix by fixing multiple prefabricated copper tubes at certain intervals to form a copper tube matrix.

[0011] Step 2: Position the copper tube matrix. Move the copper tube matrix prepared in Step 1 below the fin punching equipment so that the punched fins can be directly fitted onto the copper tubes of the copper tube matrix.

[0012] Step 3: Fin combing. Use a pre-set combing device to comb the fins on the copper tube, so that the fins are moved from top to bottom to the preset position.

[0013] Step four: Copper tube matrix unloading. The copper tube matrix with fins threaded through it is moved out from under the fin punching equipment, and then the entire copper tube matrix is ​​removed, completing the automatic tube threading operation for the fins.

[0014] As a further aspect of the present invention: In step three, the comb device includes the following manufacturing steps: according to the number and spacing of copper tubes in the copper tube matrix, a certain number and a certain width of comb teeth are set, the corresponding number and width of comb teeth are fixedly connected to form a comb tooth mechanism, and at least one set of comb tooth mechanisms is installed on a power mechanism. The power mechanism can drive the comb tooth mechanism to pass into the copper tube matrix and move it from top to bottom, thereby performing a combing operation on the fins.

[0015] As a further aspect of the present invention: in step three, the fin combing includes the following steps: at least one set of combing devices are respectively arranged on both sides of the copper tube matrix, wherein the combing mechanism on both sides is driven by the power mechanism to enter the copper tube matrix from both sides and comb the fins on the upper end of the copper tube downwards, so that the fins move downwards to a preset position.

[0016] As a further aspect of the present invention: In step three, the fin combing includes the following steps: at least one set of combing devices is set on the front side of the copper tube matrix, wherein the combing mechanism on the front side is driven by the power mechanism to penetrate into the copper tube matrix from the front side and comb the fins on the upper end of the copper tube downwards, so that the fins move downwards to a preset position.

[0017] As a further aspect of the present invention: In step three, the fin combing includes the following steps: a first combing device is set on both sides of the copper tube matrix, and a second combing device is set on the front of the copper tube matrix. The combing mechanism of the first combing device, driven by the power mechanism, enters the copper tube matrix from both sides and combs the fins at the first position on the upper end of the copper tube downwards, causing them to move downwards to the second position; the combing mechanism of the second combing device, driven by the power mechanism, enters the copper tube matrix from the front and combs the fins at the second position downwards, causing them to move downwards to the fourth position.

[0018] As a further aspect of the present invention: In step three, the fin combing includes the following steps: a first combing device and a third combing device are arranged on both sides of the copper tube matrix, and a second combing device is arranged on the front side of the copper tube matrix. The combing mechanism of the first combing device, driven by the power mechanism, enters the copper tube matrix from both sides and combs the fins at the first position on the upper end of the copper tube downwards, moving them downwards to the second position; the combing mechanism of the third combing device, driven by the power mechanism, enters the copper tube matrix from both sides and combs the fins at the second position downwards, moving them downwards to the third position; the combing mechanism of the second combing device, driven by the power mechanism, enters the copper tube matrix from the front and combs the fins at the third position downwards, moving them downwards to the fourth position.

[0019] As a further aspect of the present invention: in step one, preparing the copper tube matrix further includes the following steps: setting multiple wedge bases at the lower end of the copper tube matrix, and inserting multiple copper tubes into the multiple wedge bases respectively to form a stable copper tube matrix; and setting a guide pin at the upper end of each copper tube, one end of the guide pin being inserted into the copper tube, and the other end having a pointed tip, so that the fins can fall downward along the tip of the guide pin, thereby facilitating their placement on the copper tube.

[0020] As a further aspect of the present invention: the guide pin is provided with a limiting soft rubber, which is fixedly connected to the tip of the guide pin and supports the fins that fall into the guide pin, so that at least one fin is supported at the limiting soft rubber at the tip to form the first position of the fin, thereby waiting for the combing operation of the combing device.

[0021] As a further aspect of the present invention: in step two, the positioning of the copper tube matrix also includes the following steps: using a prefabricated positioning mechanism to position the copper tubes in the copper tube matrix, so that the copper tubes are kept in a vertical state that cooperates with the fins, so that the fallen fins can fall smoothly into the upper end of the copper tubes, and thus facilitate the combing device to smoothly comb them into the preset position.

[0022] The present invention also provides an automatic tube-threading device for air conditioning fins, including a device or equipment for performing production operations using the above-described method to quickly thread air conditioning fins into copper tubes.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. By setting the copper tube matrix below the fin punching equipment, the punched fins can be directly dropped onto the copper tubes, reducing the fin transportation process, improving overall production efficiency, and preventing damage to the fins during transportation.

[0025] 2. By incorporating a combing device, the fins fitted onto the upper end of the copper tube can be combed, causing them to move downwards and stop at the appropriate position, quickly completing the fin insertion process. Because the combing is performed actively using comb teeth, the combing speed can be very fast, thereby improving the efficiency of fin insertion.

[0026] 3. A positioning mechanism can also be set to position the copper tubes in the copper tube matrix, so that the copper tubes can be kept vertical, which facilitates the combing and moving of the fins by the combing device, thereby improving the tube threading efficiency and preventing damage to the fins or copper tubes, thus reducing the scrap rate.

[0027] Therefore, with the above improvements, the present invention can provide a method and equipment for automatically threading air conditioner fins onto copper tubes, enabling the fins to be threaded onto copper tubes quickly and smoothly, thereby improving production efficiency, reducing scrap rate, and enhancing the competitiveness of the factory.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall process of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the fin punching equipment of the present invention;

[0032] Figure 3 This is a schematic diagram showing the position of the fins in this invention;

[0033] Figure 4 This is a partial top view of the comb teeth of the present invention combing the fins;

[0034] Figure 5 This is a schematic diagram of the structure of the limiting soft rubber of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the first comb device and the third comb device of the present invention;

[0036] Figure 7 This is a schematic diagram of the comb mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the second comb device of the present invention during combing;

[0038] Figure 9 yes Figure 8 A magnified view of a portion of point B in the middle;

[0039] Figure 10 yes Figure 8 A magnified view of a portion of point C in the middle;

[0040] Figure 11 This is a partial structural schematic diagram of the insertion of the first comb device and the second comb device of the present invention into the copper tube matrix;

[0041] Figure 12 yes Figure 11 A magnified view of a portion of point D in the middle;

[0042] Figure 13 This is a partial structural schematic diagram of the positioning mechanism of the present invention;

[0043] Figure 14 yes Figure 13 A magnified view of a portion of point A in the middle;

[0044] Figure 15 This is a structural schematic diagram of the clamping component of the present invention.

[0045] The reference numerals and names in the figure are as follows:

[0046] 10 Copper tube matrix; 11 Prefabricated copper tube; 12 Guide pin; 13 Limiting soft rubber; 14 First position; 15 Second position; 16 Third position; 17 Fourth position; 20 Wedge base; 21 Base fixing plate; 22 Lifting mechanism; 30 Positioning mechanism; 31 Slide rail; 32 Positioning block; 33 Clamping component; 34 Positioning notch; 35 Tension spring; 36 Clamp; 37 Clamping hole; 38 Slide groove; 40 Comb device; 41 Comb tooth mechanism; 42 Comb tooth; 43 First comb device; 44 Third comb device; 45 Second comb device; 46 Comb tooth seat; 50 Fin punching equipment; 52 Fin; 60 Power mechanism; 70 Workbench. Detailed Implementation

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figures 1 to 15In the first embodiment of the present invention, a method for automatically threading air conditioner fins through tubes includes the following steps: Step 1, preparing a copper tube matrix 10 by fixing multiple prefabricated copper tubes 11 at certain intervals to form a copper tube matrix 10; Step 2, positioning the copper tube matrix 10 by moving the copper tube matrix 10 prepared in Step 1 below the fin punching device 50 so that the punched fins 52 can be directly fitted onto the copper tubes of the copper tube matrix 10; Step 3, combing the fins 52 by using a preset combing device 40 to comb the fins 52 on the copper tubes, so that the fins 52 are moved from top to bottom to a preset position; Step 4, discharging the copper tube matrix 10 by removing the copper tube matrix 10 with the threaded fins 52 from below the fin punching device 50, and then removing the entire copper tube matrix 10 to complete the automatic threading operation of the copper tubes. In step three, the comb device 40 includes the following manufacturing steps: according to the number and spacing of copper tubes in the copper tube matrix 10, a certain number and a certain width of comb teeth 42 are set, the corresponding number and width of comb teeth 42 are fixedly connected to form a comb tooth mechanism 41, and at least one set of comb tooth mechanisms 41 is installed on the power mechanism 60. The power mechanism 60 can drive the comb tooth mechanism 41 to pass into the copper tube matrix 10 and move it from top to bottom, thereby performing a combing operation on the fins 52.

[0049] Specifically, due to the extremely thin thickness of the air conditioning heat dissipation fins 52, quickly and successfully threading them through the copper tube is a major challenge in current production. Furthermore, the holes on the fins 52 are very small relative to the copper tube, requiring a certain amount of force to be applied to either the copper tube or the fins 52 during the threading process. Traditional threading methods require collecting the fins 52 from the punching table of the fin punching equipment 50 and then moving them to a dedicated threading table for the threading operation, resulting in a complex process and low efficiency.

[0050] Secondly, the copper tube matrix can be installed on a prefabricated worktable 70. Then, by moving the worktable 70, the copper tube matrix can be placed below the fin punching equipment 50, allowing the punched fins 52 to fall directly onto the copper tube, completing the tube insertion operation. While this method is quick, the friction between the fins 52 and the copper tube will prevent subsequent fins 52 from falling. Furthermore, the inconsistent postures of the falling fins 52 and the uneven gaps between them and the copper tube cause the frictional force to increase exponentially as the number of fins 52 increases, making it difficult for the fins 52 to fall to the bottom of the copper tube and complete the tube insertion operation.

[0051] Therefore, intervention is needed during the descent of the fins 52. A combing device 40 is installed to comb the fins 52, helping them to quickly and smoothly pass through the copper tube. The combing device 40 can be configured according to the specifications of the copper tube matrix 10 and the fins 52 to be produced. Multiple comb teeth 42 are fixed together on the comb tooth seat 46 to form a comb tooth mechanism 41. The comb tooth mechanism 41 is then fixed to the drive end of the power mechanism 60, so that it is driven by the power mechanism to comb the fins.

[0052] Understandably, the power mechanism 60 can be assembled using various existing power devices. For example, it can be assembled using a robotic arm, or it can be assembled using a combination of slide rail 31, slider, and motor. The installation position of the comb device 40 can also be adjusted according to the power mechanism 60. For instance, when a robotic arm is used as the power mechanism 60, its degree of freedom is relatively large, thus not occupying too much space. When the combination of slide rail 31, slider, and motor is used as the power mechanism 60, its installation position can be adjusted according to the movement mode of the worktable 70. When the worktable 70 moves using a turntable rotation, the slide rail 31 can be installed on both sides of the fin punching equipment 50, thus not obstructing the rotation of the worktable 70, and allowing the comb mechanism 41 to be inserted from both sides of the copper tube matrix 10. When the worktable 70 moves back and forth, the slide rail 31 can be installed on the front of the fin punching equipment 50, so as not to obstruct the movement of the worktable 70, and the comb mechanism 41 can be inserted into the front of the copper tube matrix 10.

[0053] In addition, for ease of description and understanding, such as Figure 3 As shown, when the fins 52 fall onto the copper tube matrix 10, they can be assigned corresponding names based on their different positions on the copper tubes. For example, the position of the fins 52 at the tip of the guide pin 12 can be designated as the first position 14; the position below the first position 14 and located at the top of the copper tube can be designated as the second position 15; the position below the second position 15 and moved a certain distance towards the bottom of the copper tube can be designated as the third position 16; and the position at the bottom of the copper tube or the stacked position where the fins 52 are already stacked and gradually moving towards the bottom of the copper tube can be designated as the fourth position 17. The fins 52 can be directly combed from the first position 14 to the fourth position 17 by the combing device 40, or they can be combed from the first position 14 to the second position 15 first, and then to the fourth position 17, or they can be combed from the first position 14 to the second position 15 first, then from the second position 15 to the third position 16, and finally to the fourth position 17.

[0054] In the second embodiment, as Figure 2As shown, preferably, in step three, the combing of the fins 52 includes the following steps: at least one set of combing devices 40 are respectively set on both sides of the copper tube matrix 10, wherein the combing mechanism 41 on both sides is driven by the power mechanism 60 to enter the copper tube matrix 10 from both sides and comb the fins 52 on the upper end of the copper tube downward, so that the fins 52 move downward to a preset position.

[0055] Specifically, viewed from the side of the copper tube matrix 10, the spacing between adjacent copper tubes is very small. Therefore, the comb teeth 42 inserted into the copper tube matrix 10 from the side need to be very thin to be inserted smoothly. Furthermore, since the copper tube matrix 10 is relatively wide, if comb teeth 42 are used directly from the side through the entire copper tube matrix 10, the length of the comb teeth 42 would be very long. A long and thin comb tooth 42 is prone to wobbling at its tip, leading to instability and failing to effectively comb the fins 52. Therefore, the preferred arrangement of the comb devices 40 on the side of the copper tube matrix 10 is to have one comb device 40 on each side. The comb teeth 42 of the comb devices 40 on both sides are inserted into the copper tube matrix 10 from both sides, resulting in a longer length that better combs all the fins 52 on the entire copper tube matrix 10. The second embodiment also involves setting comb devices 40 on both sides of the copper tube matrix 10 and inserting them simultaneously from both sides to comb the fins 52.

[0056] Secondly, the combing devices 40 on both sides can also be equipped with multiple sets of combing devices 40 that can operate independently. For example, a first combing device 43 is set to move the fins from the first position 14 to the second position 15, a third combing device 44 is set to move the fins from the second position 15 to the third position 16, and a second combing device 45 is set to move the fins from the third position 16 to the fourth position 17, thereby completing the entire automatic tube threading operation process.

[0057] In the third embodiment, as Figure 8 As shown, preferably, in step three, the combing of the fins 52 includes the following steps: at least one set of combing devices 40 is provided on the front side of the copper tube matrix 10, wherein the combing mechanism 41 on the front side is driven by the power mechanism 60 to penetrate into the copper tube matrix 10 from the front side and comb the fins 52 on the upper end of the copper tube downward, so that the fins 52 move downward to a preset position.

[0058] Specifically, from the front view of the copper tube matrix 10, the spacing between two adjacent copper tubes is relatively large. Therefore, the comb teeth 42 inserted into the copper tube matrix 10 from the front can be set to be relatively thick. Also, since the thickness of the copper tube matrix 10 at the front and back is relatively narrow, the length of the comb teeth 42 inserted from the front does not need to be very long. Therefore, the length of the comb teeth 42 inserted from the front is relatively short and the thickness is relatively large. Therefore, it is not necessary to set the comb device 40 at both the front and back of the copper tube matrix 10. It is only necessary to set the comb device 40 on the front side so that the comb teeth 42 can be inserted into the copper tube matrix 10 from the front and comb the fins 52.

[0059] Secondly, similar to the second embodiment, the front comb device 40 can also be equipped with multiple independently operating fin 52 devices to comb and thread the fins 52 in stages, which will not be elaborated here.

[0060] In the fourth embodiment, as Figure 11 As shown, preferably, in step three, the combing of the fins 52 includes the following steps: a first comb device 43 is provided on both sides of the copper tube matrix 10, and a second comb device 45 is provided on the front side of the copper tube matrix 10. The comb tooth mechanism 41 of the first comb device 43, driven by the power mechanism 60, enters the copper tube matrix 10 from both sides and combs the fins 52 at the first position 14 at the upper end of the copper tube downward, so that they move downward to the second position 15; the comb tooth mechanism 41 of the second comb device 45, driven by the power mechanism 60, enters the copper tube matrix 10 from the front and combs the fins 52 at the second position 15 downward, so that they move downward to the fourth position 17.

[0061] Specifically, guide pins 12 are installed at the top of the copper tubes, and the diameter of the guide pins 12 gradually decreases upwards, forming an upward-pointing tip. At the tip, the distance between two adjacent guide pins 12 is greater than the distance between the copper tubes. Therefore, a first comb device 43 can be set on the side of the copper tube matrix 10. The first comb device 43 only needs to comb the fins from the first position 14 to the second position 15, so the comb teeth 42 of the first comb device 43 do not need to penetrate downwards into the relatively narrow gap between the copper tubes. Therefore, the thickness of the comb teeth 42 on the first comb device 43 can be set to be relatively large, thereby improving the stability of the comb teeth 42 and further improving the combing efficiency. A second comb device 45 can also be set on the front to continue combing the fins at the second position 15 downwards, thereby completing the entire combing process.

[0062] In the fifth embodiment, as Figure 3As shown, preferably, in step three, the combing of the fins 52 includes the following steps: a first combing device 43 and a third combing device 44 are arranged on both sides of the copper tube matrix 10, and a second combing device 45 is arranged on the front side of the copper tube matrix 10. The combing mechanism 41 of the first combing device 43, driven by the power mechanism 60, enters the copper tube matrix 10 from both sides and combs the fins 52 at the first position 14 on the upper end of the copper tube downward, so that they move downward to the second position 15; the combing mechanism 41 of the third combing device 44, driven by the power mechanism 60, enters the copper tube matrix 10 from both sides and combs the fins 52 at the second position 15 downward, so that they move downward to the third position 16; the combing mechanism 41 of the second combing device 45, driven by the power mechanism 60, enters the copper tube matrix 10 from the front and combs the fins 52 at the third position 16 downward, so that they move downward to the fourth position 17.

[0063] Specifically, compared to the fourth embodiment, this embodiment adds a third position 16 and a third combing device 44. In the fourth embodiment, after the first combing device 43 combs the fins 52 from the first position 14 to the second position 15, it can return to its original position and wait for the fins 52 to fall back to the first position 14, forming a certain number of stacked fins 52 at the first position 14. At the same time, the second combing device 45 can comb the fins 52 at the second position 15 downwards. However, during the downward combing process, the upper end of the copper tube is loose, and fins 52 fall from above onto the guide pin 12, creating a certain impact force on the guide pin 12 and transmitting it to the copper tube. This may cause a slight wobbling at the upper end of the copper tube, thereby changing the gap between the copper tube and the fins 52, easily increasing the friction force. This causes the second combing device 45 to encounter increased resistance during the combing of the fins 52 at the second position 15, and may even cause the fins 52 to get stuck.

[0064] Therefore, in the fifth embodiment, by adding the third position 16 and the third comb device 44, an auxiliary positioning structure composed of fins 52 can be formed above the copper tube, thereby preventing the upper end of the copper tube from shaking, reducing friction, and making the second comb device 45 smoother in combing the fins 52. When the second comb device 45 combs the fins 52 positioned at the third position 16 downwards, the third comb device 44 will comb the fins 52 from the second position 15 to the third position 16, so that there is always a set of fins 52 in the copper tube matrix 10 at the upper end of the copper tube, forming an auxiliary positioning structure, thereby stabilizing the upper end of the copper tube and preventing the copper tube from shaking.

[0065] like Figure 2 , Figure 3 , Figure 10 and Figure 11As shown, preferably, in step one, preparing the copper tube matrix 10 further includes the following steps: multiple wedge bases 20 are set at the lower end of the copper tube matrix 10, and multiple copper tubes are inserted into the multiple wedge bases 20 respectively, thereby forming a stable copper tube matrix 10; a guide pin 12 is also set at the upper end of each copper tube, one end of which is inserted into the copper tube, and the other end forms a tip with a diameter that changes from small to large. The fins 52 can fall downwards along the tip of the guide pin 12, thus facilitating their placement on the copper tube. A limiting soft rubber 13 is provided on the guide pin 12, which is fixedly connected to the tip of the guide pin 12 and supports the fins 52 that fall into the guide pin 12, so that at least one fin 52 is supported at the limiting soft rubber 13 at the tip, forming the first position 14 of the fin 52, thus awaiting the combing operation of the combing device 40.

[0066] Specifically, to fix the copper tubes, a base fixing plate 21 can be set, and a corresponding number of wedge-mounted bases 20 can be fixedly connected to the base fixing plate 21. The wedge-mounted base 20 is provided with a groove and abutment (not shown in the figure) for fixing the copper tubes. The copper tubes can be inserted into the grooves and, under the constraint of the abutment, form a stable fixed connection. Because the bottom of the copper tubes will be firmly fixed to the wedge-mounted bases 20, a lifting mechanism 22 can also be set on the base fixing plate 21. After the fins 52 have automatically finished threading the tubes, the lifting mechanism 22 can be used to lift the copper tubes upwards, causing them to detach from the wedge-mounted bases 20, thereby removing the copper tube matrix 10 after threading.

[0067] Secondly, to ensure the fins 52 fall smoothly onto the copper tube, guide pins 12 can be installed at the upper end of the copper tube, using the tips of the guide pins 12 to guide the fins 52. Additionally, to improve the combing efficiency, limiting soft rubber 13 can be installed, allowing multiple fins 52 to be supported on the guide pins 12 and subsequently combed together to their corresponding positions by the combing device 40. For example, 10 fins 52 can be stacked on the limiting soft rubber 13 before the first combing device 43 is activated to comb the 10 fins 52, simultaneously combing them to the second position 15.

[0068] Furthermore, it is understandable that the limiting soft rubber 13 is a deformable rubber material, which can only provide relatively loose support for the fin 52. When the fin 52 is combed by the comb mechanism 41 and moves downward, the limiting soft rubber 13 can deform and pass through the through hole of the fin 52 without hindering the combing of the fin 52.

[0069] like Figure 2 , Figure 3 and Figure 9As shown, preferably, in step two, the positioning of the copper tube matrix 10 further includes the following steps: using a prefabricated positioning mechanism 30 to position the copper tubes in the copper tube matrix 10, so that the copper tubes are kept in a vertical state that cooperates with the fins 52, so that the fallen fins 52 fall smoothly into the upper end of the copper tube, and thus facilitate the combing device to smoothly comb them into the preset position. The prefabricated positioning mechanism 30 includes the following manufacturing steps: according to the size of the copper tubes to be inserted, set the corresponding size of the clamps 36, and combine two symmetrically connected clamps 36 to form a set of clamp components 33; then, according to the number of copper tubes and the spacing between the copper tubes in the copper tube matrix 10, use multiple sets of clamp components 33 to be combined and installed at a certain distance to form the positioning mechanism 30; wherein, slide rails 31 are respectively provided on both sides of the positioning mechanism 30, and slide grooves 38 are respectively provided at both ends of the clamps 36, the slide grooves 38 are slidably connected to the slide rails 31, so that the clamps 36 can slide on the positioning mechanism 30; and on both sides of the positioning mechanism 30, there are also Multiple sets of positioning blocks 32 are provided, with one set of positioning blocks 32 corresponding to a row of copper tubes, and one set of clamping components 33 corresponding to one set of positioning blocks 32, so that the positions of the clamping components 33, copper tubes and positioning blocks 32 correspond to each other; each set of clamping components 33 has positioning notches 34 and tension springs 35 at both ends. The two ends of the tension springs 35 are respectively fixedly connected to two clamps 36 of the same set of clamping components 33, so that the two clamps 36 are clamped together in the middle under the tension of the tension springs 35, and the positioning notches 34 of the two clamps 36 hold the corresponding positioning blocks 32, thereby ensuring that the copper tubes held by the clamping components 33 correspond to the corresponding positioning blocks 32.

[0070] Specifically, for relatively long copper tubes, relying solely on the wedge base 20 at the bottom and the fins 52 at the top for positioning is insufficient to ensure the stability of the copper tube. Especially after a certain number of fins 52 have been inserted, some displacement may occur between copper tubes and between the copper tube and the fins 52, preventing the subsequent fins 52 from being smoothly aligned to their proper positions. Therefore, a positioning mechanism 30 can be provided on the copper tube matrix 10, using a clamping member 33 of a certain thickness to hold the copper tubes, thereby maintaining the stability of the copper tubes themselves and their position. Furthermore, it is understood that the clamping member 33 also has clamping holes 37 for the copper tubes to pass through, thus clamping them.

[0071] Secondly, preferably, in the initial state, the positioning mechanism 30 is located at the upper end of the copper tube matrix 10, and a space is left at the uppermost end of the copper tube for a certain number of fins 52 to be combed; after a certain number of fins 52 fall onto the guide pin 12, the combing device 40 combs the certain number of fins 52, causing them to move downward a certain distance and come into contact with the positioning mechanism 30; then the positioning mechanism 30 moves downward a certain distance, making room for the next group of fins 52 to be combed, so that the combing device 40 can comb the next group of fins 52; this combing is repeated a certain number of times until the positioning mechanism 30 moves downward to the lowermost end of the copper tube matrix 10, and then the combing device 40 combs the last group of fins 52 to the uppermost end of the copper tube matrix 10, thus completing the tube-passing operation of the fins 52 on the entire copper tube matrix 10.

[0072] In operation, at the beginning of the fin insertion process in the copper tube matrix 10, the positioning mechanism 30 can move upward to the second position 15. The first group of fins 52, after being combed from the first position 14 to the second position 15, comes into contact with the positioning mechanism 30. The positioning mechanism 30 then moves downward a certain distance, creating space for the subsequent fins 52 to be combed. This process continues, with the positioning mechanism 30 moving downwards sequentially, and the fins 52 continuously being combed downwards. This continues until the positioning mechanism 30 reaches the bottom, and the last group of fins 52 is combed to the top of the copper tube, thus completing the fin insertion operation of the entire copper tube matrix 10.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A method for automatically threading tubes through air conditioner fins, characterized in that, Includes the following steps: Step 1: Prepare a copper tube matrix (10) by fixing multiple prefabricated copper tubes (11) at a certain distance to form a copper tube matrix (10). Step 2, copper tube matrix (10) is in place. The copper tube matrix (10) prepared in step 1 is moved to the bottom of the fin punching equipment (50) so that the punched fins (52) can be directly fitted onto the copper tubes of the copper tube matrix (10). Step 3, fin (52) combing: use the preset combing device (40) to comb the fins (52) on the copper tube, so that the fins (52) are moved from top to bottom to the preset position; Step 4: Discharge of copper tube matrix (10). The copper tube matrix (10) with fins (52) threaded through it is moved out from under the fin punching equipment (50). Then the entire copper tube matrix (10) is removed to complete the automatic tube threading operation for the fins. In step three, the comb device (40) includes the following manufacturing steps: according to the number and spacing of copper tubes in the copper tube matrix (10), a certain number and a certain width of comb teeth (42) are set, the corresponding number and width of comb teeth (42) are fixedly connected to form a comb tooth mechanism (41), and at least one set of comb tooth mechanisms (41) is installed on the power mechanism (60). The power mechanism (60) can drive the comb tooth mechanism (41) to pass into the copper tube matrix (10) and move it from top to bottom, thereby combing the fins (52). The comb device (40) is configured as multiple comb devices that operate independently, and the comb device can comb the fins (52) to different positions in stages.

2. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step three, the fin (52) combing includes the following steps: at least one set of combing devices (40) are respectively set on both sides of the copper tube matrix (10), wherein the combing mechanism (41) on both sides is driven by the power mechanism (60) to enter the copper tube matrix (10) from both sides and comb the fin (52) on the upper end of the copper tube downward, so that the fin (52) moves downward to a preset position.

3. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step three, the fin (52) combing includes the following steps: at least one set of combing devices (40) is set on the front side of the copper tube matrix (10), wherein the combing mechanism (41) on the front side is driven by the power mechanism (60) to enter the copper tube matrix (10) from the front side and comb the fin (52) sleeved on the upper end of the copper tube downward, so that the fin (52) moves downward to a preset position.

4. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step three, the combing of the fins (52) includes the following steps: a first combing device (43) is set on both sides of the copper tube matrix (10), and a second combing device (45) is set on the front of the copper tube matrix (10). The combing mechanism (41) of the first combing device (43) is driven by the power mechanism (60) to enter the copper tube matrix (10) from both sides and comb the fins (52) at the first position (14) at the upper end of the copper tube downwards, so that they move downwards to the second position (15); the combing mechanism (41) of the second combing device (45) is driven by the power mechanism (60) to enter the copper tube matrix (10) from the front and comb the fins (52) at the second position (15) downwards, so that they move downwards to the fourth position (17).

5. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step three, the combing of the fins (52) includes the following steps: a first comb device (43) and a third comb device (44) are provided on both sides of the copper tube matrix (10), and a second comb device (45) is provided on the front of the copper tube matrix (10). The comb tooth mechanism (41) of the first comb device (43) is driven by the power mechanism (60) to penetrate into the copper tube matrix (10) from both sides, and combs the fins (52) at the first position (14) at the upper end of the copper tube downwards, so that they move downwards to the second position (15). The combing mechanism (41) of the third combing device (44), driven by the power mechanism (60), enters the copper tube matrix (10) from both sides and combs the fins (52) at the second position (15) downward, so that they move downward to the third position (16); the combing mechanism (41) of the second combing device (45), driven by the power mechanism (60), enters the copper tube matrix (10) from the front and combs the fins (52) on the third position (16) downward, so that they move downward to the fourth position (17).

6. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step one, preparing the copper tube matrix (10) also includes the following steps: multiple wedge bases (20) are set at the lower end of the copper tube matrix (10), and multiple copper tubes are inserted into the multiple wedge bases (20) respectively to form a stable copper tube matrix (10); guide pins (12) are also set at the upper end of each copper tube, one end of the guide pin (12) is inserted into the copper tube, and the other end has a tip. The fins (52) can fall down along the tip of the guide pin (12) to facilitate being fitted onto the copper tube.

7. The method for automatically threading tubes through air conditioning fins according to claim 6, characterized in that, The guide pin (12) is provided with a limiting soft rubber (13), which is fixedly connected to the tip of the guide pin (12) and supports the fins (52) that fall into the guide pin (12), so that at least one fin (52) is supported at the limiting soft rubber (13) at the tip to form the first position (14) of the fin (52), thus waiting for the combing operation of the combing device (40).

8. The method for automatically threading tubes through air conditioning fins according to claim 1, characterized in that, In step two, the positioning of the copper tube matrix (10) also includes the following steps: using a prefabricated positioning mechanism (30) to position the copper tubes in the copper tube matrix (10) so that the copper tubes are kept in a vertical state that cooperates with the fins (52), so that the fallen fins (52) can fall smoothly into the upper end of the copper tube, and thus be easily combed into the preset position by the combing device.

9. A device for automatically threading tubes through air conditioning fins, characterized in that, To implement the method according to any one of claims 1-8, comprising: The wedge base (20) is used to insert multiple copper tubes into multiple wedge bases respectively, thereby forming a stable copper tube matrix (10); The positioning mechanism (30) positions the copper tubes in the copper tube matrix (10) to maintain the copper tubes in a vertical position that matches the fins (52), thus allowing any falling fins (52) to fall smoothly into the upper part of the copper tube; and The combing device (40) combs the fins (52) on the copper tube.

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