Cutting equipment for heat transfer pipe of water chilling unit

Abstract

The invention relates to the technical field of pipeline cutting equipment, in particular to cutting equipment for a water chilling unit heat transfer pipe, which comprises a processing table and a fixing plate fixedly arranged on the side surface of the processing table, a positioning frame is fixedly mounted at the top of the processing table, and a cutting tool for cutting the heat transfer pipe is movably arranged on the front surface of the positioning frame; a conveying mechanism used for conveying the heat transfer pipe is arranged on one side of the cutting tool, and an air drying mechanism used for drying the inner wall of the heat transfer pipe is arranged on the front face of the fixing plate. Before the cutting tool is started, the dust collection tool is started, due to the fact that the extending end of the transmission air cylinder is in the longest state at the moment, the output end of the U-shaped pipe is blocked by the rubber plate, airflow blown out by the dust collection tool is injected into the square pipe through the hose and then injected into the heat transfer pipe through the output end of the square pipe, and water in the heat transfer pipe is dried. Therefore, when the heat transfer pipe is cut, generated copper cuttings are prevented from being agglomerated or caked in the heat transfer pipe, and the product quality of the heat transfer pipe is prevented from being influenced.

Description

Technical Field

[0001] The invention relates to the technical field of pipe cutting equipment, in particular to a cutting equipment for a heat transfer pipe of a chiller. Background Art

[0002] The integrated air conditioning unit is an important part of the airport expansion project. The chiller is a refrigeration device used for the integrated air conditioning unit. It is mainly composed of compressors, condensers, expansion valves, evaporators and other components. Its main function is to provide cooling water through circulating refrigerants to provide cooling for the air conditioning unit. The heat transfer pipes of the chiller need to be cut before use;

[0003] Since the material of most heat transfer tubes is copper, after long-term storage, there is a small amount of moisture on the inner wall of the heat transfer tube. During the cutting process of the heat transfer tube, water is sprayed to cool the heat transfer tube and wash the copper chips. The moisture will enter the heat transfer tube. Under the action of water, the copper chips on the inner wall of the heat transfer tube will have adhesion, resulting in agglomeration or agglomeration, which is inconvenient to effectively clean the inner wall of the heat transfer tube, which will affect the product quality of the heat transfer tube. At the same time, when cutting the heat transfer tube, the existing method is to clamp the heat transfer tube and then transport it. This process easily causes the heat transfer tube to deform, which is inconvenient for effective transportation and positioning of the heat transfer tube, affecting the efficiency of heat transfer tube processing. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that the copper chips on the inner wall of the heat transfer tube are adhered to each other under the action of water, resulting in agglomeration or caking, making it inconvenient to effectively clean the inner wall of the heat transfer tube, and affecting the quality of the heat transfer tube product;

[0006] (2) How to solve the problem that the heat transfer tube is easily deformed after being clamped and then transported, which makes it inconvenient to effectively transport and position the heat transfer tube, thereby affecting the processing efficiency of the heat transfer tube.

[0007] The object of the present invention can be achieved by the following technical scheme: a water chiller heat transfer tube cutting device, comprising a processing table and a fixed plate fixedly arranged on the side thereof, a positioning frame fixedly installed on the top of the processing table, a cutting tool for cutting the heat transfer tube movably arranged on the front of the positioning frame, the cutting tool is a prior art, and a conveying mechanism for conveying the heat transfer tube is arranged on one side of the cutting tool, and an air drying mechanism for drying the inner wall of the heat transfer tube is arranged on the front of the fixed plate;

[0008] The air-drying mechanism includes a transmission plate rotatably connected to a fixed plate, a transversely arranged transmission cylinder is fixedly installed on the fixed plate on one side of the transmission plate, the extended end of the transmission cylinder is movably connected to the top of the transmission plate through a first lever, and a positioning unit for determining the length of the heat transfer tube is arranged below the transmission cylinder.

[0009] A further technical improvement of the present invention is that a U-shaped tube is arranged above the transmission cylinder, a dust collecting tool is arranged on the front top of the fixed plate, the dust collecting tool is a prior art, and the output end of the dust collecting tool is connected with the input end of the U-shaped tube, and a rubber plate for blocking the output end of the U-shaped tube is installed on the top of the transmission plate.

[0010] A further technical improvement of the present invention is that the positioning unit includes two guide sleeves fixedly connected to a fixed plate, the inner walls of the two guide sleeves are slidably sleeved with a square tube, one end of the square tube is fixedly sleeved with a positioning plate, and the position of the positioning plate corresponds to the position of one end of the heat transfer tube.

[0011] A further technical improvement of the present invention is that: one end of the square tube away from the positioning plate is movably connected to the bottom of the transmission plate through the second lever, and the end of the square tube close to the second lever is sealed, and the middle of the square tube is connected with a hose, and the input end of the hose is connected to the middle of the U-shaped tube; before starting the cutting tool, the dust collecting tool is turned on, because the extended end of the transmission cylinder is in the longest state at this time, so that the rubber plate blocks the output end of the U-shaped tube, and the airflow blown by the dust collecting tool is injected into the square tube through the hose, and then injected and blown into the heat transfer tube through the output end of the square tube to dry the moisture in the heat transfer tube, so as to avoid the copper chips generated from agglomerating or agglomerating in the heat transfer tube when cutting the heat transfer tube, so as to prevent the product quality of the heat transfer tube from being affected; in the process of cutting the heat transfer tube, the dust collecting tool is used to collect the chips, and in this process, the extended end of the transmission cylinder is controlled to shrink to the shortest, so that the positioning plate is separated from one end of the heat transfer tube, and the rubber plate is separated from the output end of the U-shaped tube, so that the airflow blown by the dust collecting tool is discharged through the output end of the U-shaped tube.

[0012] A further technical improvement of the present invention is that the conveying mechanism includes a pressing cylinder fixedly connected to the positioning frame, a pressing wheel is rotatably provided at the protruding end of the pressing cylinder, and a pressing unit for fixing the heat transfer tube is provided below the pressing cylinder.

[0013] A further technical improvement of the present invention is that two longitudinally arranged guide plates are fixedly installed on the top of the processing table, the distance between the two guide plates corresponds to the diameter of the heat transfer tube, and a conveying wheel is rotatably connected between the two guide plates through a transmission shaft, and a motor for driving the conveying wheel to rotate is arranged between one of the guide plates and the positioning frame.

[0014] A further technical improvement of the present invention is that the pressing unit includes an L-shaped plate fixedly connected to the positioning frame, a flip rod is rotatably connected between the bottom of the L-shaped plate and the positioning frame, one end of the flip rod is fixedly connected to a rubber block, a groove for positioning the heat transfer tube is provided on the rubber block, and the flip rod is rollingly connected to the pressing wheel away from the middle of the rubber block.

[0015] A further technical improvement of the present invention is that a rotating frame is fixedly installed on the end of the flip rod away from the rubber block, a roller is rotatably arranged on the rotating frame, a rubber sleeve is fixedly sleeved on the outer wall of the roller, the position of the roller corresponds to the position between the two guide plates, and the width of the roller is smaller than the distance between the two guide plates.

[0016] A further technical improvement of the present invention is that: a support plate is also fixedly installed on the positioning frame, a blower is fixedly arranged on the top of the support plate, the output end of the blower is connected to an air jet pipe, the output end of the air jet pipe is arranged toward the heat transfer pipe, and a tension spring is fixedly connected between the support plate and the rotating frame; by controlling the extended end of the pressing cylinder to extend to the longest, the pressing wheel provides rolling pressure to the flip rod, driving the roller to roll and contact with the heat transfer pipe, and since a rubber sleeve is fixedly arranged on the outer wall of the roller, the roller is prevented from squeezing and deforming the heat transfer pipe, and the motor is turned on, so that the conveying wheel The rubber block is rotated, and the roller drives the heat transfer tube to move horizontally, so that one end of the heat transfer tube contacts the positioning plate. The positioning plate is used to determine the length of the heat transfer tube to be cut. At this time, the extended end of the transmission cylinder is in the longest state; then the extended end of the pressing cylinder is controlled to shrink to the shortest, and the turning rod is reset and turned by the tension of the tension spring, so that the groove on the rubber block cooperates with the cutting seat to limit the heat transfer tube, which is convenient for the cutting tool to cut the heat transfer tube, avoids deformation during the transportation of the heat transfer tube, effectively transports and positions the heat transfer tube, and ensures the efficiency of the heat transfer tube processing.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention is used, before the cutting tool is turned on, the dust collecting tool is turned on. Since the extended end of the transmission cylinder is in the longest state at this time, the rubber plate blocks the output end of the U-shaped tube. The airflow blown by the dust collecting tool is injected into the square tube through the hose, and then injected and blown into the heat transfer tube through the output end of the square tube to dry the moisture in the heat transfer tube. Therefore, when the heat transfer tube is cut, the copper chips generated are prevented from agglomerating or agglomerating in the heat transfer tube, thereby preventing the product quality of the heat transfer tube from being affected. In the process of cutting the heat transfer tube, the dust collecting tool is used to collect the chips. In this process, the extended end of the transmission cylinder is controlled to shrink to the shortest, so that the positioning plate is separated from one end of the heat transfer tube, and the rubber plate is separated from the output end of the U-shaped tube, so that the airflow blown by the dust collecting tool is discharged through the output end of the U-shaped tube.

[0019] When the present invention is in use, the extended end of the pressing cylinder is controlled to extend to the longest, so that the pressing wheel provides rolling pressure to the flip rod, driving the roller to roll and contact with the heat transfer tube. Since a rubber sleeve is fixedly provided on the outer wall of the roller, the roller is prevented from squeezing and deforming the heat transfer tube. The motor is turned on to rotate the conveying wheel, and the roller drives the heat transfer tube to move horizontally, so that one end of the heat transfer tube contacts the positioning plate. The length of the heat transfer tube to be cut is determined by the positioning plate. At this time, the extended end of the transmission cylinder is in the longest state; the extended end of the pressing cylinder is then controlled to shrink to the shortest, and the flip rod is reset and flipped by the tension of the tension spring, so that the groove on the rubber block cooperates with the cutting seat to limit the heat transfer tube, which is convenient for the cutting tool to cut the heat transfer tube, avoids deformation in the process of conveying the heat transfer tube, effectively conveys and positions the heat transfer tube, and ensures the efficiency of heat transfer tube processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the air-drying mechanism of the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the positioning unit structure of the present invention;

[0024] Figure 4 For the present invention Figure 1 A magnified view of the structure at center;

[0025] Figure 5 It is a schematic diagram of the structure of the transmission mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the pressing unit structure of the present invention.

[0027] In the figure: 1, positioning frame; 2, conveying mechanism; 3, conveying roller; 4, processing table; 5, recovery box; 6, guide trough; 7, fixing plate; 8, air drying mechanism; 9, cutting tool; 10, cutting seat; 11, cutting trough; 201, pressing cylinder; 202, blower; 203, support plate; 204, jet pipe; 205, conveying wheel; 206, guide plate; 207, motor; 208, pressing unit; 208 1. Rubber block; 2082. Roller; 2083. Rotating frame; 2084. L-shaped plate; 2085. Turning rod; 801. Vacuuming tool; 802. Transmission cylinder; 803. Positioning unit; 804. Guide sleeve; 805. Transmission plate; 806. First lever; 807. Rubber plate; 808. Hose; 809. U-shaped tube; 8031. Second lever; 8032. Square tube; 8033. Positioning plate. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 As shown, a cutting device for heat transfer tubes of a chiller comprises a processing table 4 and a fixing plate 7 fixedly arranged on the side thereof, a positioning frame 1 is fixedly installed on the top of the processing table 4, a cutting tool 9 for cutting the heat transfer tube is movably arranged on the front of the positioning frame 1, the cutting tool 9 is the prior art, and a conveying mechanism 2 for conveying the heat transfer tube is arranged on one side of the cutting tool 9, and an air drying mechanism 8 for drying the inner wall of the heat transfer tube is arranged on the front of the fixing plate 7.

[0030] See also Figure 1-Figure 6 As shown, the above-mentioned air-drying mechanism 8 includes a transmission plate 805 rotatably connected to the fixed plate 7, and a transversely arranged transmission cylinder 802 is fixedly installed on the fixed plate 7 on one side of the transmission plate 805. The protruding end of the transmission cylinder 802 is movably connected to the top of the transmission plate 805 through a first lever 806, and a positioning unit 803 for determining the length of the heat transfer tube is arranged below the transmission cylinder 802.

[0031] See also Figure 1 and Figure 2 As shown, a U-shaped tube 809 is arranged above the above-mentioned transmission cylinder 802, and a dust collector 801 is arranged on the front top of the fixed plate 7. The dust collector 801 is a prior art, and the output end of the dust collector 801 is connected to the input end of the U-shaped tube 809.

[0032] See also Figure 2 As shown, a rubber plate 807 for blocking the output end of the U-shaped tube 809 is installed on the top of the transmission plate 805 .

[0033] See also Figure 1-Figure 3 As shown, the above-mentioned positioning unit 803 includes two guide sleeves 804 fixedly connected to the fixed plate 7, the inner walls of the two guide sleeves 804 are slidably sleeved with a square tube 8032, and one end of the square tube 8032 is fixedly sleeved with a positioning plate 8033, and the position of the positioning plate 8033 corresponds to the position of one end of the heat transfer tube.

[0034] See also Figure 2 and Figure 3As shown, the end of the square tube 8032 away from the positioning plate 8033 is movably connected to the bottom of the transmission plate 805 through the second lever 8031, and the end of the square tube 8032 close to the second lever 8031 ​​is sealed, and the middle of the square tube 8032 is connected with a hose 808, and the input end of the hose 808 is connected to the middle of the U-shaped tube 809; before starting the cutting tool 9, the dust collecting tool 801 is turned on. Since the extended end of the transmission cylinder 802 is in the longest state at this time, the rubber plate 807 blocks the output end of the U-shaped tube 809, and the airflow blown out by the dust collecting tool 801 will be injected into the square tube through the hose 808. 8032, and then injected into the heat transfer tube through the output end of the square tube 8032 to blow the moisture in the heat transfer tube, so as to avoid the copper chips generated from agglomerating or agglomerating in the heat transfer tube when cutting the heat transfer tube, so as to prevent the product quality of the heat transfer tube from being affected; in the process of cutting the heat transfer tube, the chips are collected by the dust collector 801. In this process, the extended end of the transmission cylinder 802 is controlled to shrink to the shortest, so that the positioning plate 8033 is separated from one end of the heat transfer tube, and the rubber plate 807 is separated from the output end of the U-shaped tube 809, so that the airflow blown out by the dust collector 801 is discharged through the output end of the U-shaped tube 809.

[0035] See also Figure 1 and Figure 5 As shown, the above-mentioned conveying mechanism 2 includes a pressing cylinder 201 fixedly connected to the positioning frame 1, a pressing wheel is rotatably provided at the extended end of the pressing cylinder 201, and a pressing unit 208 for fixing the heat transfer tube is provided below the pressing cylinder 201.

[0036] See also Figure 1 and Figure 5 As shown, two longitudinally arranged guide plates 206 are fixedly installed on the top of the above-mentioned processing table 4, the distance between the two guide plates 206 corresponds to the diameter of the heat transfer tube, and a conveying wheel 205 is rotatably connected between the two guide plates 206 through a transmission shaft, and a motor 207 for driving the conveying wheel 205 to rotate is arranged between one of the guide plates 206 and the positioning frame 1.

[0037] See also Figure 5 and Figure 6 As shown, the above-mentioned pressing unit 208 includes an L-shaped plate 2084 fixedly connected to the positioning frame 1, a flip rod 2085 is rotatably connected between the bottom of the L-shaped plate 2084 and the positioning frame 1, one end of the flip rod 2085 is fixedly connected to a rubber block 2081, and a slot for positioning the heat transfer tube is opened on the rubber block 2081, and the flip rod 2085 is rollingly connected to the pressing wheel away from the middle of the rubber block 2081.

[0038] See also Figure 5 and Figure 6As shown, the end of the above-mentioned flip rod 2085 away from the rubber block 2081 is fixedly installed with a rotating frame 2083, and a roller 2082 is rotatably arranged on the rotating frame 2083. A rubber sleeve is fixedly sleeved on the outer wall of the roller 2082. The position of the roller 2082 corresponds to the position between the two guide plates 206, and the width of the roller 2082 is smaller than the distance between the two guide plates 206.

[0039] See also Figure 5 and Figure 6 As shown, the positioning frame 1 is also fixedly mounted with a support plate 203, a blower 202 is fixedly arranged on the top of the support plate 203, the output end of the blower 202 is connected with an air jet 204, the output end of the air jet 204 is arranged toward the heat transfer tube, and a tension spring is fixedly connected between the support plate 203 and the rotating frame 2083; by controlling the extended end of the pressing cylinder 201 to extend to the longest, the pressing wheel provides rolling pressure to the flip rod 2085, driving the roller 2082 to roll with the heat transfer tube. Since a rubber sleeve is fixedly sleeved on the outer wall of the roller 2082, the roller 2082 is prevented from squeezing and deforming the heat transfer tube, and the motor 207 is turned on, so that the conveying wheel 2082 05 rotates, and cooperates with roller 2082 to drive the heat transfer tube to move horizontally, so that one end of the heat transfer tube contacts the positioning plate 8033, and the positioning plate 8033 is used to determine the length of the heat transfer tube to be cut. At this time, the extended end of the transmission cylinder 802 is in the longest state; then the extended end of the pressing cylinder 201 is controlled to shrink to the shortest, and the flip rod 2085 is reset and flipped by the tension of the tension spring, so that the groove on the rubber block 2081 cooperates with the cutting seat 10 to limit the heat transfer tube, which is convenient for the cutting tool 9 to cut the heat transfer tube, avoids deformation during the transportation of the heat transfer tube, effectively transports and positions the heat transfer tube, and ensures the efficiency of the heat transfer tube processing.

[0040] See also Figure 1 , Figure 4 and Figure 6 As shown, a cutting seat 10 for placing the heat transfer tube is fixedly installed on the top of the above-mentioned processing table 4, and the position of the cutting seat 10 corresponds to the position of the rubber block 2081, and a cutting groove 11 is opened on the top of the cutting seat 10, and the position of the cutting groove 11 corresponds to the position of the input end of the cutting tool 9 and the vacuum tool 801 respectively.

[0041] See also Figure 1 As shown, a recovery box 5 for collecting heat transfer tubes is fixedly arranged at the bottom of the front side of the fixed plate 7, and an inclined material guide trough 6 is fixedly installed at the middle of the front side of the fixed plate 7. The position of the top of the material guide trough 6 corresponds to the position of the cutting seat 10, and the bottom of the material guide trough 6 is located in the recovery box 5.

[0042] See also Figure 1As shown, a plurality of conveying rollers 3 for supporting the heat transfer tubes are rotatably arranged on a side of the top of the processing table 4 away from the cutting seat 10 .

[0043] Working principle: When the present invention is used, first, Figure 1 and Figure 5 As shown, the heat transfer tube is placed between the cutting seat 10 and the two guide plates 206. At this time, the heat transfer tube is supported by a plurality of conveying rollers 3; Figure 5 and Figure 6 As shown, by controlling the extended end of the pressing cylinder 201 to extend to the longest, the pressing wheel provides rolling pressure to the flip rod 2085, driving the roller 2082 to roll and contact the heat transfer tube. Since a rubber sleeve is fixed on the outer wall of the roller 2082, the roller 2082 is prevented from squeezing and deforming the heat transfer tube. The motor 207 is turned on to rotate the conveying wheel 205, and the roller 2082 drives the heat transfer tube to move horizontally, so that one end of the heat transfer tube contacts the positioning plate 8033, as shown in FIG. Figure 2 and Figure 3 As shown, the length of the heat transfer tube to be cut is determined by the positioning plate 8033. At this time, the extended end of the transmission cylinder 802 is in the longest state; Figure 5 and Figure 6 As shown, the extended end of the pressing cylinder 201 is controlled to be retracted to the shortest, and the flip rod 2085 is reset and flipped by the tension of the tension spring, as shown in FIG. Figure 1 , Figure 4 and Figure 5 As shown, the groove on the rubber block 2081 cooperates with the cutting seat 10 to limit the heat transfer tube, which is convenient for the cutting tool 9 to cut the heat transfer tube, avoids deformation during the transportation of the heat transfer tube, effectively transports and positions the heat transfer tube, and ensures the efficiency of heat transfer tube processing; as shown Figure 1-Figure 4 As shown, before the cutting tool 9 is turned on, the dust collecting tool 801 is turned on. Since the extended end of the transmission cylinder 802 is at its longest state at this time, the rubber plate 807 blocks the output end of the U-shaped tube 809. The airflow blown out by the dust collecting tool 801 is injected into the square tube 8032 through the hose 808, and then injected into the heat transfer tube through the output end of the square tube 8032 to dry the moisture in the heat transfer tube. Therefore, when cutting the heat transfer tube, the copper scraps generated are prevented from agglomerating or agglomerating in the heat transfer tube, thereby preventing the product quality of the heat transfer tube from being affected. Figure 2 and Figure 4 As shown, in the process of cutting the heat transfer tube, the dust collecting tool 801 is used to collect the debris. In this process, the extended end of the transmission cylinder 802 is controlled to be retracted to the shortest, so that the positioning plate 8033 is separated from one end of the heat transfer tube, and the rubber plate 807 is separated from the output end of the U-shaped tube 809, so that the airflow blown by the dust collecting tool 801 is discharged through the output end of the U-shaped tube 809. At the same time, Figure 1 and Figure 5As shown, the blower 202 is turned on so that the airflow blows to the end of the heat transfer tube away from the positioning plate 8033, thereby effectively cooling the heat transfer tube. The cut heat transfer tube falls into the recovery box 5 through the material guide trough 6 and collides. This process can directly shake out the dry copper chips in the heat transfer tube and avoid subsequent cleaning.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cutting device for a heat transfer pipe of a chiller, comprising a processing table (4) and a fixing plate (7) fixedly arranged on the side thereof, wherein a positioning frame (1) is fixedly installed on the top of the processing table (4), characterized in that: A cutting tool (9) for cutting the heat transfer tube is movably arranged on the front of the positioning frame (1); a conveying mechanism (2) for conveying the heat transfer tube is arranged on one side of the cutting tool (9); and an air drying mechanism (8) for drying the inner wall of the heat transfer tube is arranged on the front of the fixing plate (7); The air-drying mechanism (8) comprises a transmission plate (805) rotatably connected to the fixed plate (7); a transmission cylinder (802) is fixedly mounted on the fixed plate (7) on one side of the transmission plate (805); an extended end of the transmission cylinder (802) is movably connected to the top of the transmission plate (805); and a positioning unit (803) for determining the length of the heat transfer tube is provided below the transmission cylinder (802).

2. The chiller heat transfer pipe cutting device according to claim 1, characterized in that: A U-shaped tube (809) is arranged above the transmission cylinder (802), a dust collecting tool (801) is arranged on the front top of the fixed plate (7), the output end of the dust collecting tool (801) is connected to the input end of the U-shaped tube (809), and a rubber plate (807) for blocking the output end of the U-shaped tube (809) is installed on the top of the transmission plate (805).

3. The chiller heat transfer pipe cutting device according to claim 1, characterized in that: The positioning unit (803) comprises two guide sleeves (804) fixedly connected to the fixing plate (7); the inner walls of the two guide sleeves (804) are jointly sleeved with a square tube (8032); one end of the square tube (8032) is fixedly sleeved with a positioning plate (8033); the position of the positioning plate (8033) corresponds to the position of one end of the heat transfer tube.

4. The chiller heat transfer pipe cutting device according to claim 3, characterized in that: One end of the square tube (8032) away from the positioning plate (8033) is movably connected to the bottom of the transmission plate (805), and the end of the square tube (8032) close to the second lever (8031) is sealed. The middle of the square tube (8032) is connected to a hose (808), and the input end of the hose (808) is connected to the middle of the U-shaped tube (809).

5. The chiller heat transfer pipe cutting device according to claim 1, characterized in that: The conveying mechanism (2) comprises a pressing cylinder (201) fixedly connected to the positioning frame (1), a pressing wheel is rotatably provided at the protruding end of the pressing cylinder (201), and a pressing unit (208) for fixing the heat transfer tube is provided below the pressing cylinder (201).

6. The chiller heat transfer pipe cutting device according to claim 5, characterized in that: Two guide plates (206) are fixedly mounted on the top of the processing table (4), the distance between the two guide plates (206) corresponds to the diameter of the heat transfer tube, and a conveying wheel (205) is rotatably connected between the two guide plates (206), and a motor (207) for driving the conveying wheel (205) to rotate is arranged between one of the guide plates (206) and the positioning frame (1).

7. The chiller heat transfer tube cutting device according to claim 5, characterized in that: The pressing unit (208) comprises an L-shaped plate (2084) fixedly connected to the positioning frame (1); a flip rod (2085) is rotatably connected between the bottom of the L-shaped plate (2084) and the positioning frame (1); one end of the flip rod (2085) is fixedly connected to a rubber block (2081); a slot for positioning the heat transfer tube is provided on the rubber block (2081); and the flip rod (2085) is rollingly connected to the pressing wheel away from the middle of the rubber block (2081).

8. The chiller heat transfer pipe cutting device according to claim 7, characterized in that: A rotating frame (2083) is fixedly mounted on one end of the flip rod (2085) away from the rubber block (2081); a roller (2082) is rotatably arranged on the rotating frame (2083); a rubber sleeve is fixedly sleeved on the outer wall of the roller (2082); the position of the roller (2082) corresponds to the position between the two guide plates (206), and the width of the roller (2082) is smaller than the distance between the two guide plates (206).

9. The chiller heat transfer pipe cutting device according to claim 7, characterized in that: A support plate (203) is also fixedly mounted on the positioning frame (1); a blower (202) is fixedly arranged on the top of the support plate (203); an output end of the blower (202) is connected to an air jet pipe (204); the output end of the air jet pipe (204) is arranged toward the heat transfer pipe; and a tension spring is fixedly connected between the support plate (203) and the rotating frame (2083).

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