A pipe and coil integrated coil making machine

Abstract

The application relates to the technical field of pipe bending, and particularly discloses a pipe and coil integrated pipe bending machine which comprises an operation plate arranged horizontally, a high-frequency pipe welding machine, a pipe pressing device, a cutting device and a pipe bending machine which are sequentially arranged on the operation plate, and a core plate fixedly arranged horizontally on the operation plate; a steel bar and the core plate sequentially pass through the high-frequency pipe welding machine, the pipe pressing device, the cutting device and the pipe bending machine; the high-frequency pipe welding machine is used for welding the steel bar into a round pipe; the pipe pressing device is used for extruding the round pipe into a flat pipe; the core plate comprises a first core section arranged in the high-frequency pipe welding machine, a second core section arranged in the pipe pressing device and a third core section arranged between the pipe pressing device and the pipe bending machine; the first core section is arranged in the round pipe, and the third core section is arranged in the flat pipe. The pipe and coil integrated pipe bending machine can efficiently and continuously perform pipe making and pipe bending operations.

Description

Technical Field

[0001] This invention relates to the technical field of pipe bending, and more specifically, to a pipe-making and coiling integrated coiling machine. Background Technology

[0002] As a core component of various heat exchangers such as water heaters and air conditioners, the heat pipe's heat exchange efficiency directly determines the overall performance of the equipment, and the size of the heat exchange area is one of the key factors affecting heat exchange efficiency. To maximize the heat exchange area, engineers typically process heat pipes into various irregular shapes, among which reciprocating bends and spiral pipes are the two most widely used forms. Depending on the equipment's application and operating conditions, heat pipes can be either round or flat. Flat pipes, due to their larger heat exchange contact area within the same space, are widely used in high-efficiency heat exchange scenarios.

[0003] The traditional processing of flat tubes is quite complex. It typically uses steel or copper bars as raw materials, first welding them into round tubes, then extruding them to obtain flat tubes. In the subsequent bending process, to prevent wrinkles and deformation due to uneven stress at the bending points, a core plate (a long, straight rod structure) must be inserted into the flat tube beforehand. The core plate's support ensures bending accuracy and appearance quality.

[0004] This traditional processing method has many drawbacks: each flat tube needs to undergo multiple processes such as tube making, core board insertion, and tube bending, making the operation cumbersome, requiring a large number of workers, and resulting in high labor costs; the tubes need to be transferred back and forth between different processes and different equipment, which not only increases transportation time but also may cause damage to the tubes due to bumps and knocks during transportation; at the same time, multiple processes correspond to multiple specialized equipment, requiring a large investment in equipment purchase, maintenance, and site rental, further increasing the total production cost. Therefore, a more integrated tube coiling equipment can be designed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated tube-making and coiling machine that can efficiently and continuously perform tube-making and bending operations.

[0006] This invention is achieved through the following technical solution: The integrated pipe-making and coiling machine of this invention includes a horizontally arranged operating plate, a high-frequency pipe welding machine, a pipe pressing device, a cutting device, a pipe bending machine, and a core plate horizontally fixed on the operating plate; steel bars and the core plate pass sequentially through the high-frequency pipe welding machine, the pipe pressing device, the cutting device, and the pipe bending machine; the high-frequency pipe welding machine is used to weld the steel bars into round pipes, and the pipe pressing device is used to extrude the round pipes into flat pipes; the core plate includes a first core segment in the high-frequency pipe welding machine, a second core segment in the pipe pressing device, and a third core segment between the pipe pressing device and the pipe bending machine; the first core segment is located in the round pipe, and the third core segment is located in the flat pipe.

[0007] Furthermore, the high-frequency pipe welding machine includes multiple sets of rollers respectively disposed on both sides of the operating plate, and a welding machine fixedly disposed on the operating plate.

[0008] Furthermore, the pressing device includes a pair of pressing rollers respectively disposed on the upper and lower sides of the circular tube, and a first support plate is rotatably connected to both ends of the pair of pressing rollers; the first support plate is fixedly connected to the operating plate.

[0009] Furthermore, a second support plate with an inverted U-shaped structure is fixedly connected to the end of the first core segment away from the second core segment; the second support plate is fixedly connected to the operating plate, and the steel bar is disposed through the lower side of the second support plate.

[0010] Furthermore, the cutting device includes a guide rail fixedly mounted on the operation panel and a cutting machine slidably mounted on the guide rail; the length direction of the guide rail is perpendicular to the length direction of the operation panel; the plane of the cutting machine blade is perpendicular to the length direction of the operation panel.

[0011] Furthermore, the cutting device is provided in pairs, with the pair of cutting devices respectively located on both sides of the operating plate.

[0012] Furthermore, the pair of cutting devices are staggered and arranged on both sides of the operating plate.

[0013] Furthermore, the cutting device also includes a pair of slots respectively opened on both sides of the third core segment; one slot corresponds to one cutting machine; the depth of the slot is greater than half the width of the third core segment.

[0014] The technical solution of this invention has at least the following advantages and beneficial effects: The integrated tube-making and coiling machine of this invention feeds steel bars into a high-frequency welding machine, where the steel bars are welded into round tubes. Then, a pressing device extrudes the round tubes into flat tubes, which are then fed into a bending machine for bending. A cutting device cuts the flat tubes. During this process, the core plate provides support for the flat tubes during bending, and the core plate remains within the round or flat tube throughout the process. Therefore, it is unnecessary to thread the flat tubes onto the core plate after production and then bend them. This eliminates the need for the threading step, effectively improving production efficiency, reducing the number of workstations and equipment, and also effectively reducing the resources consumed in transferring the flat tubes. Attached Figure Description

[0015] Figure 1 A schematic diagram of a state of the integrated tube-making and coiling machine provided in an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the two states of the integrated tube-making and coiling machine provided in an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the three states of the integrated tube-making and coiling coiling machine provided in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the operation panel portion provided in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the core board portion provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the circular tube portion provided in an embodiment of the present invention.

[0021] Icons: 10-Operating panel, 11-High frequency pipe welding machine, 111-Roller, 112-Welding machine, 12-Pipe pressing device, 121-Pressure roller, 122-First support plate, 13-Cutting device, 131-Guide rail, 132-Cutting machine, 14-Pipe bending machine, 20-Core plate, 21-First core segment, 22-Second core segment, 23-Third core segment, 24-Slot, 25-Second support plate, 31-Steel bar, 32-Round pipe, 33-Flat pipe. Detailed Implementation

[0022] Example

[0023] The following description, in conjunction with specific embodiments, further illustrates the points, as shown in the appendix. Figure 1 -Appendix Figure 6As shown, the integrated pipe-making and coiling machine of this embodiment includes a horizontally arranged operation plate 10, a high-frequency pipe welding machine 11, a pipe pressing device 12, a cutting device 13, a pipe bending machine 14, and a core plate 20 horizontally fixed on the operation plate 10. The steel bar 31 and the core plate 20 pass through the high-frequency pipe welding machine 11, the pipe pressing device 12, the cutting device 13, and the pipe bending machine 14 in sequence. The high-frequency pipe welding machine 11 is used to weld the steel bar 31 into a round pipe 32, and the pipe pressing device 12 is used to extrude the round pipe 32 into a flat pipe 33. The core plate 20 includes a first core segment 21 in the high-frequency pipe welding machine 11, a second core segment 22 in the pipe pressing device 12, and a third core segment 23 between the pipe pressing device 12 and the pipe bending machine 14. The first core segment 21 is in the round pipe 32, and the third core segment 23 is in the flat pipe 33. Specifically, during use, steel bars 31 are fed into the high-frequency pipe welding machine 11, where they are welded into round pipes 32. Then, a pipe pressing device 12 is used to press the round pipes 32 into flat pipes 33. The flat pipes 33 are then fed into a pipe bending machine 14 for bending, and a cutting device 13 can cut them. During this process, the core plate 20 provides support for the flat pipes 33 during bending, and since the core plate 20 remains within the round pipes 32 or flat pipes 33 throughout the process, it is unnecessary to thread the flat pipes 33 onto the core plate 20 after production and then bend them. This eliminates the need for threading, effectively improving production efficiency, reducing the number of workstations and equipment, and also significantly reducing the resources consumed in transferring the flat pipes 33.

[0024] The high-frequency pipe welding machine 11 in this embodiment includes multiple sets of rollers 111 respectively disposed on both sides of the operating plate 10, and a welding machine 112 fixedly disposed on the operating plate 10. Specifically, the main principle of the high-frequency pipe welding machine 11 is to extrude sheet-like steel strips 31 into round tubes 32 using the rollers 111, and then weld the seam together using the welding machine 112. Subsequent operations include cooling and scraping off weld slag, which are not described in detail in this embodiment. Therefore, the high-frequency pipe welding machine 11 can use existing equipment, and it is not redesigned in this embodiment. The same applies to the pipe bending machine 14.

[0025] The pressing device 12 in this embodiment includes a pair of pressing rollers 121 respectively disposed on the upper and lower sides of the circular tube 32. A first support plate 122 is rotatably connected to both ends of the pair of pressing rollers 121; the first support plate 122 is fixedly connected to the operating plate 10. Specifically, the pair of pressing rollers 121 can directly press the circular tube 32, shaping it into a flat tube 33, which facilitates subsequent bending operations. It should be noted that the pressing rollers 121 are only needed for finished products that are flat tubes 33; if the finished product is a circular tube 32, pressing is not required.

[0026] In this embodiment, the end of the first core segment 21 furthest from the second core segment 22 is fixedly connected to a second support plate 25 with an inverted U-shaped structure; the second support plate 25 is fixedly connected to the operating plate 10, and a steel strip 31 is disposed through the lower side of the second support plate 25. Specifically, the core plate 20 itself can be supported by the round tube 32 and the flat tube 33, and the second support plate 25 can fix the core plate 20 to prevent it from moving with the round tube 32 and the flat tube 33. In addition, the core plate 20 is divided into the first core segment 21, the second core segment 22, and the third core segment 23 mainly to adapt to the shape of the round tube 32, the junction of the round tube 32 and the flat tube 33, and the flat tube 33, respectively.

[0027] The cutting device 13 in this embodiment includes a guide rail 131 fixedly mounted on the operation plate 10, and a cutting machine 132 slidably mounted on the guide rail 131. The length direction of the guide rail 131 is perpendicular to the length direction of the operation plate 10. The plane of the cutting machine 132 blade is perpendicular to the length direction of the operation plate 10. A pair of cutting devices 13 are provided, each located on one side of the operation plate 10. The pair of cutting devices 13 are staggered on both sides of the operation plate 10. The cutting device 13 also includes a pair of slots 24 respectively opened on both sides of the third core segment 23; each slot 24 corresponds to one cutting machine 132; the depth of the slot 24 is greater than half the width of the third core segment 23. Specifically, since the steel bar 31 is drawn from the steel coil, it is a continuous structure. However, the pipe bending machine 14 can only bend flat pipes 33 of a certain length. Therefore, the flat pipe 33 needs to be cut. Since the process of making the steel bar 31 into a round pipe 32 needs to be continuous, cutting cannot be performed at this point. Instead, cutting can be done at the third core segment 23. The cutting principle is as follows: first, use the cutting device 13, which is close to the high-frequency welded pipe machine 11, to cut a certain depth on one side of the flat pipe 33 (as shown in the attached diagram). Figure 2 (As shown), then the flat tube 33 continues to move, and when the cut moves to another slot 24, another cutter 132 is used to cut on the other side of the cut, thereby completely severing the flat tube 33 (as shown in the attached diagram). Figure 3 As shown in the diagram, two slots 24 need to be cut into the third core segment 23 to accommodate the movement of the cutting machine 132 (the movement of the cutting machine 132 on the guide rail 131 can be driven by a motor or operated manually). During this process, the round tube 32, flat tube 33, and steel bar 31 all need to undergo multiple pauses and movements. Since the pipe bending machine 14 itself undergoes frequent start-stop operations, the high-frequency welded pipe machine 11 does not need to run continuously and rapidly; it only needs to meet the operating rhythm of the pipe bending machine 14. Alternatively, one operating panel 10 can be paired with multiple pipe bending machines 14. When changing materials in one pipe bending machine 14, the pipe bending machine 14 can be switched to achieve more efficient continuous production.

[0028] In summary, the integrated tube-making and coiling machine of this embodiment involves feeding steel bars 31 into a high-frequency welding machine 11 to weld them into round tubes 32. Then, a pressing device 12 extrudes the round tubes 32 into flat tubes 33. The flat tubes 33 are then fed into a bending machine 14 for bending, and a cutting device 13 cuts them off. During this process, the core plate 20 provides support for the flat tubes 33 during bending, and the core plate 20 remains within the round tubes 32 or flat tubes 33 throughout the process. Therefore, it is unnecessary to thread the flat tubes 33 onto the core plate 20 after production and then bend them. This eliminates the need for threading, effectively improving production efficiency, reducing the number of workstations and equipment, and minimizing the resources required for transferring the flat tubes 33.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tube-making and coiling integrated coiling machine, characterized in that: It includes a horizontally set operation panel (10), a high-frequency pipe welding machine (11), a pipe pressing device (12), a cutting device (13), a pipe bending machine (14) arranged sequentially on the operation panel (10), and a core plate (20) horizontally fixed on the operation panel (10). The steel bar (31) and the core plate (20) pass sequentially through the high-frequency welded pipe machine (11), the pipe pressing device (12), the cutting device (13), and the pipe bending machine (14); the high-frequency welded pipe machine (11) is used to weld the steel bar (31) into a round pipe (32), and the pipe pressing device (12) is used to extrude the round pipe (32) into a flat pipe (33); The core plate (20) includes a first core segment (21) disposed in the high-frequency welded pipe machine (11), a second core segment (22) disposed in the pipe pressing device (12), and a third core segment (23) disposed between the pipe pressing device (12) and the pipe bending machine (14); the first core segment (21) is disposed in the round pipe (32), and the third core segment (23) is disposed in the flat pipe (33); The first core segment (21) is fixedly connected to a second support plate (25) with an inverted U-shaped structure at one end away from the second core segment (22); The second support plate (25) is fixedly connected to the operating plate (10), and the steel bar (31) is arranged through the lower side of the second support plate (25).

2. The integrated tube-making and coiling machine according to claim 1, characterized in that: The high-frequency pipe welding machine (11) includes multiple sets of rollers (111) respectively arranged on both sides of the operating plate (10), and a welding machine (112) fixed on the operating plate (10).

3. The integrated tube-making and coiling machine according to claim 1, characterized in that: The tube pressing device (12) includes a pair of pressing rollers (121) respectively disposed on the upper and lower sides of the circular tube (32), and a first support plate (122) is rotatably connected to both ends of the pair of pressing rollers (121); the first support plate (122) is fixedly connected to the operating plate (10).

4. The integrated tube-making and coiling machine according to claim 1, characterized in that: The cutting device (13) includes a guide rail (131) fixed on the operation plate (10) and a cutting machine (132) slidably mounted on the guide rail (131); The length direction of the guide rail (131) is perpendicular to the length direction of the operating plate (10); the plane on which the blade of the cutting machine (132) is located is perpendicular to the length direction of the operating plate (10).

5. The integrated tube-making and coiling machine according to claim 4, characterized in that: The cutting device (13) is provided in pairs, and the pair of cutting devices (13) are respectively located on both sides of the operating plate (10).

6. The integrated tube-making and coiling machine according to claim 5, characterized in that: The pair of cutting devices (13) are staggered on both sides of the operating plate (10).

7. The integrated tube-making and coiling machine according to claim 6, characterized in that: The cutting device (13) also includes a pair of slots (24) respectively opened on both sides of the third core segment (23); One of the slots (24) corresponds to one of the cutting machines (132); the depth of the slot (24) is greater than half the width of the third core segment (23).

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