Die for finned tube

Abstract

The utility model discloses a finned tube mould which comprises a workbench, a driving assembly, a mould body, a pressing assembly and a limiting piece, the driving assembly is installed on the workbench, an output shaft of the driving assembly faces upwards, the mould body is coaxially and detachably installed on the output shaft, and the driving assembly is used for driving the mould body to rotate horizontally. A first groove is formed in the side face of the die body, the pressing assembly is installed on the workbench and located on one side of the die body, the limiting piece is arranged between the die body and the pressing end of the pressing assembly, and a second groove is formed in the side, close to the die body, of the limiting piece. The pressing assembly is used for enabling the pressing end of the pressing assembly to be close to the limiting piece and pressing the limiting piece on the die body so that a finned tube to be bent can be clamped in the first groove and the second groove, the pipe bending die is suitable for finned tubes of different diameters, only the die body needs to be detached and replaced, and the limiting piece is placed on the side face of the die body after being directly replaced and then pressed through the limiting piece.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, specifically to a mold for finned tubes. Background Technology

[0002] A utility model patent document with announcement number CN217831621U discloses a heat sink finned tube bending mold, including an operating table, a mold body, and a finned tube body. An installation box and a collection box are fixedly installed on the lower surface of the operating table. A motor is fixedly installed inside the installation box, and the motor's output shaft extends to the upper surface of the operating table and is fixedly connected to an installation plate. An installation rod is fixedly installed on the upper surface of the installation plate, and an installation rack is fixedly installed on the surface of the installation rod. A threaded groove is formed on the surface of the installation rod, and a nut is threadedly connected to the inner wall of the threaded groove. A limit cylinder is rotatably connected to the upper surface of the mold body via an installation bracket. In this heat sink finned tube bending mold, when bending finned tubes of different diameters is required, the nut is removed from the installation rod through the threaded groove, and the mold to be replaced is removed from the installation rod through the rack. The replacement mold is then installed on the installation rod.

[0003] However, the relative distance between the limiting cylinder and the mold body in the aforementioned patent document is fixed. Since the finned tube is clamped between the mold body and the limiting cylinder, when it is necessary to bend finned tubes of different diameters, the groove formed between the replaced mold body and the limiting cylinder is difficult to guarantee that all finned tubes of different diameters can be stably clamped between them, affecting the bending effect. Summary of the Invention

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a mold for finned tubes, and the technical solution adopted includes:

[0005] The assembly comprises a worktable, a drive assembly, a mold body, a clamping assembly, and a limiting member. The drive assembly is mounted on the worktable with its output shaft facing upwards. The mold body is coaxially and detachably mounted on the output shaft. The drive assembly drives the mold body to rotate horizontally, and the side of the mold body has a first groove. The clamping assembly is mounted on the worktable and located on one side of the mold body. The limiting member is disposed between the clamping end of the mold body and the clamping assembly, and the side of the limiting member closer to the mold body has a second groove. The clamping assembly is used to bring its clamping end close to the limiting member and press it against the mold body to clamp the finned tube to be bent into the first and second grooves.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the limiting member is a strip rod, and the strip rod is placed on the upper end of the workbench.

[0007] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the side of the strip bar near the mold body is provided with a second end face above and below the second groove, the mold body is provided with a first end face above and below the first groove, and the pressing end of the pressing assembly is used to press the second end face against the first end face.

[0008] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the clamping assembly includes a hydraulic telescopic rod and a clamping member. The hydraulic telescopic rod is installed on the workbench and its telescopic end faces the mold body. The clamping member is installed on the telescopic end of the hydraulic telescopic rod and constitutes the clamping end of the clamping assembly.

[0009] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the pressing member is a pressing wheel, and the pressing wheel is vertically and rotatably installed on the telescopic end of the hydraulic telescopic rod.

[0010] The beneficial effects of this utility model are:

[0011] When bending finned tubes of different diameters is required, the clamping end of the clamping assembly is moved away from the mold body. The limiting piece is loosened, and the mold body is removed from the output shaft of the drive assembly to change the size of the first groove. After reinstallation, the limiting piece with the corresponding second groove is placed on the side of the mold body. This method is suitable for finned tubes of different diameters. Only the mold body needs to be disassembled and replaced. The limiting piece is directly replaced and placed on the side of the mold body before clamping. The replacement is more convenient. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a schematic diagram of the structure of the mold for finned tubes described in the embodiments of this application;

[0014] Figure 2 This is a front view of the mold for finned tubes described in an embodiment of this application. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Reference Figure 1-2 This application proposes an embodiment of the finned tube mold, which includes:

[0020] The assembly comprises a worktable 10, a drive assembly 20, a mold body 30, a clamping assembly 40, and a limiting member 50. The drive assembly 20 is mounted on the worktable 10 with its output shaft facing upward. The mold body 30 is coaxially and detachably mounted on the output shaft. The drive assembly 20 is used to drive the mold body 30 to rotate horizontally. The mold body 30 has a first groove 31 on its side. The clamping assembly 40 is mounted on the worktable 10 and located on one side of the mold body 30. The limiting member 50 is disposed between the clamping end of the mold body 30 and the clamping assembly 40. The limiting member 50 has a second groove 51 on its side near the mold body 30. The clamping assembly 40 is used to bring its clamping end close to the limiting member 50 and clamp it onto the mold body 30 to clamp the finned tube to be bent in the first groove 31 and the second groove 51.

[0021] When bending the finned tube, the limiting member 50 is placed near the mold body 30 so that the first groove 31 and the second groove 51 surround and form a bending groove that matches the finned tube. Then, the limiting member 50 is pressed onto the mold body 30 by the pressing end of the pressing assembly 40. The driving assembly 20 drives the mold body 30 to rotate horizontally. When the mold body 30 rotates horizontally, it drives the bending tube to rotate synchronously so that it forms a bending tube. When the mold body 30 rotates horizontally, it drives the limiting member 50 to move synchronously.

[0022] When bending finned tubes of different diameters is required, the clamping end of the clamping assembly 40 is moved away from the mold body 30, the limiting member 50 is released, the mold body 30 is removed from the output shaft of the drive assembly 20 to change the size of the first groove 31 and then reinstalled. Then, the limiting member 50 with the corresponding second groove 51 is placed on the side of the mold body 30. This method is suitable for finned tubes of different diameters, and only the mold body 30 needs to be disassembled and replaced. The limiting member 50 is directly replaced and placed on the side of the mold body 30 before being clamped. The replacement is more convenient.

[0023] The mold body 30 has a wheel-shaped structure and is detachably mounted on the output shaft by means of pins or keys.

[0024] In this embodiment, the limiting member 50 is a strip rod. Since the limiting member 50 is pressed on the mold body 30, when the mold body 30 rotates to bend the finned tube, the limiting member 50 also moves linearly along the tangent direction of the mold body 30. Therefore, by designing limiting members 50 of different lengths, the requirements for different bending lengths can also be met.

[0025] Furthermore, preferably, the strip bar has a second end face 52 on both the upper and lower sides of the second groove 51 on the side near the mold body 30, and the mold body 30 has a first end face 32 on both the upper and lower sides of the first groove 31. The pressing end of the pressing assembly 40 is used to press the second end face 52 onto the first end face 32. When the pressing assembly 40 presses the limiting member 50 onto the mold body 30 through the pressing end, the first end face 32 and the second end face 52 abut against each other, thereby limiting the relative position of the limiting member 50 and the mold body 30, preventing the limiting assembly from applying excessive pressure to the finned tube under the action of the pressing end, thus ensuring the bending quality of the finned tube.

[0026] In this application, the clamping assembly 40 includes a hydraulic telescopic rod 41 and a clamping member 42. The hydraulic telescopic rod 41 is mounted on the worktable 10 with its telescopic end facing the mold body 30. The clamping member 42 is mounted on the telescopic end of the hydraulic telescopic rod 41 and forms the clamping end of the clamping assembly 40. After the hydraulic telescopic rod 41 extends, it presses the clamping member 42 against the limiting member 50 and self-locks.

[0027] Specifically, the clamping member 42 is a clamping wheel, which is vertically and rotatably mounted on the telescopic end of the hydraulic telescopic rod 41. When the limiting member 50 also moves linearly along the tangent direction of the mold body 30, the limiting member 50 drives the clamping wheel to rotate.

[0028] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A mold for finned tubes, characterized in that, The device includes a worktable (10), a drive assembly (20), a mold body (30), a clamping assembly (40), and a limiting member (50). The drive assembly (20) is mounted on the worktable (10) with its output shaft facing upwards. The mold body (30) is coaxially and detachably mounted on the output shaft. The drive assembly (20) is used to drive the mold body (30) to rotate horizontally. The mold body (30) has a first groove (31) on its side. The clamping assembly (40) is mounted on the worktable (10). The limiting member (50) is located on the platform (10) and on one side of the mold body (30). The limiting member (50) is disposed between the mold body (30) and the pressing end of the pressing assembly (40). The limiting member (50) has a second groove (51) on the side of the mold body (30) close to the limiting member (50). The pressing assembly (40) is used to bring its pressing end close to the limiting member (50) and press it on the mold body (30) to clamp the finned tube to be bent in the first groove (31) and the second groove (51).

2. The mold for finned tubes according to claim 1, characterized in that, The limiting member (50) is a strip rod, which is placed on the upper end of the worktable (10).

3. The mold for finned tubes according to claim 2, characterized in that, The strip bar has a second end face (52) above and below the second groove (51) on the side near the mold body (30). The mold body (30) has a first end face (32) above and below the first groove (31). The pressing end of the pressing assembly (40) is used to press the second end face (52) onto the first end face (32).

4. The mold for finned tubes according to claim 1, characterized in that, The clamping assembly (40) includes a hydraulic telescopic rod (41) and a clamping member (42). The hydraulic telescopic rod (41) is mounted on the worktable (10) with its telescopic end facing the mold body (30). The clamping member (42) is mounted on the telescopic end of the hydraulic telescopic rod (41) and constitutes the clamping end of the clamping assembly (40).

5. The mold for finned tubes according to claim 4, characterized in that, The clamping element (42) is a clamping wheel, which is vertically and rotatably mounted on the telescopic end of the hydraulic telescopic rod (41).

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