Fin taking and fixing tool for air conditioner heat exchanger

Abstract

The utility model discloses an air conditioner heat exchanger fin taking fixing tool which comprises a U-shaped sleeve and a connecting rod mechanism, the connecting rod mechanism is installed in the U-shaped sleeve, one end of the connecting rod mechanism movably penetrates through the top of the U-shaped sleeve and is connected with a pull handle, the connecting rod mechanism is sleeved with a spring, one end of the spring is fixed with the connecting rod mechanism, and the other end of the spring is connected with the pull handle. The blocking piece is provided with a positioning part and a movable part, the positioning part is rotatably connected with the end of the U-shaped sleeve, and the movable part is rotatably connected with the connecting rod mechanism. The pull handle is pulled to drive the connecting rod mechanism and the separation blade to move, so that the separation blade shrinks and penetrates into the U-shaped sleeve; the ends of the U-shaped sleeves are aligned with holes of the fins, the fins penetrate into the U-shaped sleeves until the fins reach the bottom positions, the pull handles are loosened, the springs rapidly act to enable the blocking pieces to rebound, and the fins are stably fixed to the U-shaped sleeves. The fixing tool is used for penetrating and fixing fins blanked by a punching machine, and the problem that the heat exchange capacity is reduced due to the fact that the fins fall off in the material taking process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a fin removal and fixing tool for an air conditioner heat exchanger. Background Art

[0002] The heat exchanger is one of the indispensable components in the air-conditioning system and plays a vital role in the heat exchange process. At present, the mainstream air-conditioning heat exchanger uses copper tubes interspersed with aluminum foil as the heat exchange conductor for the refrigerant. The production process includes cutting the rolled aluminum sheets with a high-speed punch and stacking them together, and then connecting them together with copper tubes to form the basic structure of the heat exchanger. However, due to the thin and soft texture of the aluminum fins, after production and processing, they need to be penetrated by a copper U-tube, which is used as a positioning and feeding tube for simple fixation, and then the copper tube threading is completed by the pipe threading staff. During the material removal process, the fins are prone to fall off, which affects the overall performance of the heat exchanger. Therefore, it is necessary to develop a heat exchanger fin removal and fixing tool that can effectively solve the above problems. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a fin removal and fixing tool for an air-conditioning heat exchanger, aiming to solve the problem that the fins are easy to fall off during the material removal process and affect the overall performance of the heat exchanger.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a fin removal and fixing tool for an air-conditioning heat exchanger fin, comprising a U-shaped sleeve, a handle, a connecting rod mechanism and a baffle, the connecting rod mechanism is installed in the U-shaped sleeve, and one end of the connecting rod mechanism is movably inserted into the top of the U-shaped sleeve and connected to the handle, the connecting rod mechanism is provided with a spring, and one end of the spring is fixedly installed on the connecting rod mechanism, and the other end of the spring abuts against the inner wall of the U-shaped sleeve, the baffle is provided with a positioning part and a movable part, the positioning part is rotatably connected to the end of the U-shaped sleeve, and the movable part is rotatably connected to the connecting rod mechanism.

[0005] As a further improvement of the utility model: the connecting rod mechanism includes a first transmission rod, a second transmission rod and a third transmission rod, one end of the first transmission rod is movably inserted into the top of the U-shaped sleeve and connected to the handle, the spring is sleeved on the first transmission rod, and one end of the spring is fixedly mounted on the first transmission rod, the other end of the spring abuts against the inner wall of the U-shaped sleeve, the other end of the first transmission rod is fixedly connected to the second transmission rod, the second transmission rod and the third transmission rod are rotatably connected, and the third transmission rod is rotatably connected to the movable part of the baffle.

[0006] As a further improvement of the present invention: the first transmission rod and the second transmission rod are an integrally formed structure. Since the first transmission rod and the second transmission rod are an integrally formed structure, the first transmission rod and the second transmission rod can be pulled upward at the same time by pulling the handle, and the structure is stable.

[0007] As a further improvement of the present invention: the second transmission rod is a U-shaped structure. The second transmission rod is a U-shaped structure, which facilitates the movement of the second transmission rod in the U-shaped sleeve.

[0008] As a further improvement of the utility model: the first transmission rod is provided with a fixing portion, one end of the spring is fixedly connected to the fixing portion, and the other end of the spring is a free end.

[0009] As a further improvement of the present invention: the second transmission rod is provided with a clamping part and two transmission parts, the two transmission parts are respectively connected to the two ends of the clamping part, and the other end of the transmission part is rotatably connected to the movable part of the baffle, and the first transmission rod is connected to the middle part of the clamping part.

[0010] As a further improvement of the utility model: the blocking piece is provided with a blocking portion, and the blocking portion is arranged at an angle with the U-shaped sleeve when the spring is in a relaxed state.

[0011] As a further improvement of the utility model: when the spring is in a relaxed state, the blocking portion is arranged at 90 degrees with the U-shaped sleeve. The blocking portion of the blocking piece is arranged at 90 degrees with the U-shaped sleeve, which can fix the fin and prevent the fin from falling off the U-shaped sleeve.

[0012] As a further improvement of the present invention, the U-shaped sleeve is made of hard plastic material. By making the U-shaped sleeve of hard plastic material, chemical corrosion reaction between the U-shaped sleeve and the aluminum fin can be avoided.

[0013] As a further improvement of the present invention: the pull handle, the connecting rod mechanism and the blocking piece are all made of hard plastic material.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model drives the connecting rod mechanism and the baffle to move by pulling the handle, so that the baffle is inserted into the U-shaped sleeve in a contracted state, and the end of the U-shaped sleeve is aligned with the hole of the fin, so that the fin is inserted into the U-shaped sleeve until it reaches the bottom position, and then the handle is released, and the spring inside the U-shaped sleeve rebounds to drive the connecting rod mechanism to reset, and the connecting rod mechanism drives the baffle to rebound, and the fin is firmly fixed on the U-shaped sleeve. The fixing tool is used to fix the fins after the punch press is unloaded, which reduces the risk of fins falling off and solves the problem of fins falling off easily during the material removal process, resulting in a decrease in heat exchange capacity.

[0016] 2. The utility model adopts a fixing tool to replace the copper U-tube as the feeding tube, and the U-shaped sleeve, handle, connecting rod mechanism and baffle of the fixing tool are all made of hard plastic material. The hard plastic will not produce a series of chemical corrosion reactions with the aluminum fins, thereby solving the problem in the prior art that when the copper U-tube is used for fixing, the copper tube oil and the fin oil are mixed due to failure to dry in time, causing the copper U-tube to corrode and turn black abnormally, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the spring of the utility model when it is in a relaxed state.

[0018] Figure 2 It is a schematic diagram of the internal structure of the spring of the utility model when it is in a relaxed state.

[0019] Figure 3 It is a structural schematic diagram of the spring of the utility model when it is in a contracted state.

[0020] Figure 4 It is a schematic diagram of the internal structure of the spring of the utility model when it is in a contracted state.

[0021] Figure numerals: 1. U-shaped sleeve; 2. handle; 3. connecting rod mechanism; 4. baffle; 5. spring; 6. positioning part; 7. movable part; 8. first transmission rod; 9. second transmission rod; 10. third transmission rod; 11. clamping part; 12. transmission part; 13. blocking part; 14. fixing part. DETAILED DESCRIPTION

[0022] In this document, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. The utility model is further described in conjunction with the accompanying drawings and embodiments:

[0023] Based on the problems of fin shedding and feed pipe corrosion in existing air-conditioning heat exchangers, the utility model provides a fin removal and fixing tool for air-conditioning heat exchangers, which replaces the copper U-tube as a positioning feed pipe to solve the problems of abnormal fin shedding after fin removal and corrosion of the copper U-tube due to failure to dry the fin in time.

[0024] See also Figure 1-4A fin removal and fixing tool for an air-conditioning heat exchanger comprises a U-shaped sleeve 1, a handle 2, a connecting rod mechanism 3 and a baffle 4, wherein the connecting rod mechanism 3 is installed in the U-shaped sleeve 1, and one end of the connecting rod mechanism 3 is movably inserted into the top of the U-shaped sleeve 1 and connected to the handle 2, the connecting rod mechanism 3 is provided with a spring 5, and one end of the spring 5 is fixedly installed on the connecting rod mechanism 3, and the other end of the spring 5 abuts against the inner wall of the U-shaped sleeve 1, the baffle 4 is provided with a positioning portion 6 and a movable portion 7, the positioning portion 6 is rotatably connected to the end of the U-shaped sleeve 1, and the movable portion 7 is rotatably connected to the connecting rod mechanism 3.

[0025] The handle 2 is connected to the baffle 4 through the connecting rod mechanism 3. When the handle 2 is pulled, the baffle 4 is forced to penetrate into the U-shaped sleeve 1 in a retracted state through the connecting rod mechanism 3. While pulling the handle 2, ensure that the end of the U-shaped sleeve 1 is aligned with the hole of the fin, so that the fin penetrates the U-shaped sleeve 1 until it reaches the bottom position. When the baffle 4 reaches the bottom position of the U-shaped sleeve 1, release the handle 2, and the spring 5 inside the U-shaped sleeve 1 quickly takes effect, causing the baffle 4 to rebound and firmly fix the fin on the U-shaped sleeve 1. The fins after unloading from the punch press are pierced and fixed by this fixing tool, which solves the problem of reduced heat exchange capacity caused by fins falling off during the material removal process.

[0026] The connecting rod mechanism 3 includes a first transmission rod 8, a second transmission rod 9 and a third transmission rod 10. One end of the first transmission rod 8 is movably inserted into the top of the U-shaped sleeve 1 and connected to the handle 2. The spring 5 is sleeved on the first transmission rod 8, and one end of the spring 5 is fixedly mounted on the first transmission rod 8. The other end of the spring 5 abuts against the inner wall of the U-shaped sleeve 1. The other end of the first transmission rod 8 is fixedly connected to the second transmission rod 9. The second transmission rod 9 and the third transmission rod 10 are rotatably connected. The third transmission rod 10 is rotatably connected to the movable part 7 of the baffle 4.

[0027] The first transmission rod 8 and the second transmission rod 9 are integrally formed structures.

[0028] Since the first transmission rod 8 and the second transmission rod 9 are an integrally formed structure, the first transmission rod 8 and the second transmission rod 9 can be pulled upward at the same time by pulling the handle 2, and the structure is stable.

[0029] The second transmission rod 9 is a U-shaped structure, which facilitates the movement of the second transmission rod 9 in the U-shaped sleeve 1.

[0030] The first transmission rod 8 is provided with a fixing portion 14 , one end of the spring 5 is fixedly connected to the fixing portion 14 , and the other end of the spring 5 is a free end.

[0031] When the handle is pulled to pull the first transmission rod 8 outward, the fixing portion 14 drives the spring 5 to move toward the top of the U-shaped sleeve 1 , so that the other end of the spring 5 abuts against the inner wall of the U-shaped sleeve 1 .

[0032] The second transmission rod 9 is provided with a clamping portion 11 and two transmission portions 12. The two transmission portions 12 are respectively connected to the two ends of the clamping portion 11, and the other end of the transmission portion 12 is rotatably connected to the movable portion 7 of the baffle 4. The first transmission rod 8 is connected to the middle of the clamping portion 11.

[0033] The blocking piece 4 is provided with a blocking portion 13, and when the spring 5 is in a relaxed state, the blocking portion 13 is arranged at an angle with the U-shaped sleeve 1. Further, when the spring 5 is in a relaxed state, the blocking portion 13 is arranged at 90 degrees with the U-shaped sleeve 1.

[0034] When the spring 5 changes from a contracted state to a relaxed state, the spring 5 drives the fixing portion 14 and the first transmission rod 8 to move downward, and the clamping portion 11 of the second transmission rod 9 moves downward and abuts against the inner wall of the U-shaped sleeve 1, and the two transmission portions 12 at both ends of the clamping portion 11 move downward, driving the movable portion 7 of the baffle 4 to move downward, and the baffle 4 extends outward under the action of the positioning portion 6 and the movable portion 7. At this time, the blocking portion 13 of the baffle 4 is set at 90° to the U-shaped sleeve 1, thereby fixing the fin and preventing the fin from falling off the U-shaped sleeve 1.

[0035] In order to avoid chemical corrosion reaction between the U-shaped sleeve 1 and the aluminum fins, the U-shaped sleeve 1 is made of hard plastic material.

[0036] Furthermore, the handle 2, the connecting rod mechanism 3 and the blocking piece 4 are all made of hard plastic material.

[0037] By using a fixing tool to replace the copper U-tube as the feeding tube, and the U-shaped sleeve 1, the handle 2, the connecting rod mechanism 3 and the baffle 4 of the fixing tool are all made of hard plastic material, the hard plastic will not cause a series of chemical corrosion reactions with the aluminum fins, thereby solving the problem in the prior art that when the copper U-tube is used for fixing, the copper tube oil and the fin oil are mixed due to failure to dry in time, causing the copper U-tube to corrode and turn black abnormally.

[0038] The utility model provides a fin removal and fixing tool for an air-conditioning heat exchanger after the fins are stamped. By designing a U-shaped sleeve 1, the fins are inserted into the fins for the fin removal operation. The baffle 4 designed at the bottom can fix the fins after the U-shaped sleeve 1 is completely inserted into the fins. The connecting rod mechanism 3 inside the U-shaped sleeve 1 is in a default state. The force applied by the spring 5 makes the baffle 4 in a fully open state, thereby generating a fixing effect on the fins and preventing the fins from falling off the U-shaped sleeve 1; the material of the fixing tool is selected from hard plastic, which can prevent a series of chemical corrosion reactions between the metal and the aluminum fins.

[0039] When producing a heat exchanger, the application steps of using the fixing tool to thread and fix the fins are as follows:

[0040] Step 1: Aluminum foil punching;

[0041] The aluminum foil is placed on a high-speed punch press and punched through the mechanical operation of the punch press to ensure that its shape and size meet the predetermined requirements.

[0042] Step 2: Material rack receiving;

[0043] The aluminum foil processed by the punching machine is automatically or guided to the exact position to ensure that it falls into the material rack without error, providing orderly raw materials for the subsequent steps.

[0044] Step 3: Pull up the fixed tool handle 2;

[0045] The operator controls the fixing tool and lifts the handle 2 on the fixing tool to a position required for performing the next operation.

[0046] Step 4: the baffle 4 is retracted;

[0047] The pull handle 2 is connected to the baffle 4 through a connecting rod mechanism 3. The connecting rod mechanism 3 is stressed so that the baffle 4 is inserted into the U-shaped sleeve 1 in a contracted state.

[0048] Step 5: The aluminum fin is inserted into the U-shaped sleeve 1;

[0049] While the handle 2 is raised, ensure that both ends of the U-shaped sleeve 1 are aligned with the holes of the aluminum fins, so that the aluminum fins are inserted into the U-shaped sleeve 1 until they reach the bottom position.

[0050] Step 6: Fix the fins;

[0051] When the baffle 4 reaches the bottom position of the U-shaped sleeve 1 , the handle 2 is released, and the spring 5 inside the U-shaped sleeve 1 quickly takes effect, causing the baffle 4 to rebound, thereby firmly fixing the fin on the U-shaped sleeve 1 .

[0052] Step 7: Remove the fin assembly;

[0053] The fixed aluminum fins are removed by a robotic arm, conveyor belt or other suitable device and placed in a designated location ready for subsequent processing.

[0054] Step 8: Transfer to the pipe threading station;

[0055] The operator or the automated system transfers the fixed aluminum fins to the pipe threading station to ensure the smooth progress of the entire production process.

[0056] Step 9: Extract the tool;

[0057] The operator inserts the copper tube to make the heat exchanger according to the process requirements. After the tube insertion is completed, the handle 2 is pulled up and the baffle 4 is retracted to extract the fixing tool from the fixed aluminum fin, completing the entire operation process.

[0058] By using the fixing tool to fix the fins, the risk of fin falling off can be reduced, the abnormal reduction in heat exchanger efficiency due to insufficient number of fins can be reduced, and the problem of corrosion and leakage caused by using copper U-tubes as feed pipes without timely drying can be avoided, thereby improving product quality.

[0059] The main functions of this utility model:

[0060] The utility model drives the connecting rod mechanism and the baffle to move by pulling the handle, so that the baffle is inserted into the U-shaped sleeve in a contracted state, and the end of the U-shaped sleeve is aligned with the hole of the fin, so that the fin is inserted into the U-shaped sleeve until it reaches the bottom position, and then the handle is released, and the spring rebound inside the U-shaped sleeve drives the connecting rod mechanism to reset, and the connecting rod mechanism drives the baffle to rebound, and the fin is firmly fixed on the U-shaped sleeve. The fins after the punch press is unloaded are pierced and fixed by the fixing tool, which reduces the risk of fins falling off, and solves the problem of fins falling off easily during the material collection process, resulting in a decrease in heat exchange capacity. By using a fixing tool to replace the copper U tube as a feeding tube, and the U-shaped sleeve, handle, connecting rod mechanism and baffle of the fixing tool are all made of hard plastic, the hard plastic will not have a series of chemical corrosion reactions with the aluminum fins, thereby solving the problem in the prior art that the copper U tube is corroded and blackened abnormally due to the mixing of copper tube oil and fin oil when the copper U tube is fixed due to failure to dry in time, thereby improving product quality.

[0061] In the description of the present utility model, it needs to be understood that the orientations or positional relationships indicated by terms such as "upper end face", "lower end face", "top", "bottom", "left", and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model. Therefore, they cannot be understood as limitations on the actual use direction of the present utility model.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. A fin removal and fixing tool for an air-conditioning heat exchanger, characterized in that: It includes a U-shaped sleeve, a handle, a connecting rod mechanism and a baffle. The connecting rod mechanism is installed in the U-shaped sleeve, and one end of the connecting rod mechanism is movably inserted into the top of the U-shaped sleeve and connected to the handle. The connecting rod mechanism is provided with a spring, and one end of the spring is fixedly installed on the connecting rod mechanism, and the other end of the spring abuts against the inner wall of the U-shaped sleeve. The baffle is provided with a positioning part and a movable part. The positioning part is rotatably connected to the end of the U-shaped sleeve, and the movable part is rotatably connected to the connecting rod mechanism.

2. The fin removal and fixing tool for an air conditioner heat exchanger according to claim 1, characterized in that: The connecting rod mechanism includes a first transmission rod, a second transmission rod and a third transmission rod. One end of the first transmission rod is movably inserted into the top of the U-shaped sleeve and connected to the handle. The spring is sleeved on the first transmission rod, and one end of the spring is fixedly mounted on the first transmission rod. The other end of the spring abuts against the inner wall of the U-shaped sleeve. The other end of the first transmission rod is fixedly connected to the second transmission rod, the second transmission rod and the third transmission rod are rotatably connected, and the third transmission rod is rotatably connected to the movable part of the baffle.

3. The fin removal and fixing tool for an air conditioner heat exchanger according to claim 2, characterized in that: The first transmission rod and the second transmission rod are an integrally formed structure.

4. The fin removal and fixing tool for an air-conditioning heat exchanger according to claim 2 or 3, characterized in that: The second transmission rod is a U-shaped structure.

5. The fin removal and fixing tool for air conditioner heat exchanger according to claim 2 or 3, characterized in that: The first transmission rod is provided with a fixing portion, one end of the spring is fixedly connected to the fixing portion, and the other end of the spring is a free end.

6. The fin removal and fixing tool for air conditioner heat exchanger according to claim 5, characterized in that: The second transmission rod is provided with a clamping portion and two transmission portions, the two transmission portions are respectively connected to the two ends of the clamping portion, and the other end of the transmission portion is rotatably connected to the movable portion of the baffle, and the first transmission rod is connected to the middle of the clamping portion.

7. The fin removal and fixing tool for an air conditioner heat exchanger according to claim 6, characterized in that: The blocking piece is provided with a blocking portion, and the blocking portion is arranged at an angle with the U-shaped sleeve when the spring is in a relaxed state.

8. The fin removal and fixing tool for an air conditioner heat exchanger according to claim 7, characterized in that: When the spring is in a relaxed state, the blocking portion is arranged at 90 degrees with the U-shaped sleeve.

9. The fin removal and fixing tool for air conditioner heat exchanger according to claim 1 or 2, characterized in that: The U-shaped sleeve is made of hard plastic material.

10. The fin removal and fixing tool for air conditioner heat exchanger according to claim 9, characterized in that: The pull handle, the connecting rod mechanism and the blocking piece are all made of hard plastic material.

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