Double-row porous micro-channel flat tube closing mechanism

Abstract

The utility model relates to a double-row multi-hole micro-channel flat pipe closing-up mechanism which comprises a base, and a closing-up assembly, a telescopic assembly and an extrusion assembly are installed on the upper surface of the base. The closing-in assembly comprises a closing-in module, a first sliding groove is formed in the upper surface of the base, the closing-in module can move front and back in the first sliding groove, a tension spring is installed at the position, close to the front end and the rear end, in the first sliding groove, and one end of the tension spring is connected with the closing-in module and can pull the closing-in module to move towards the end of the first sliding groove. And the telescopic assembly comprises a telescopic piece, a sliding block is installed at the telescopic end of the telescopic piece, a front extrusion assembly and a rear extrusion assembly which are symmetrically arranged are installed on one side of the sliding block, and when the telescopic piece stretches, the extrusion assemblies on the two sides can push the two closing-in modules to move towards the middle. According to the double-row multi-hole micro-channel flat pipe necking device, precise and efficient necking of double-row multi-hole micro-channel flat pipes is achieved, production efficiency is greatly improved, meanwhile, good adaptability is achieved, and the machining requirements of flat pipes of different specifications can be met.

Description

Technical Field

[0001] This utility model relates to the field of microchannel flat tube processing technology, and in particular to a double-row multi-hole microchannel flat tube closing mechanism. Background Technology

[0002] With the continuous development of technology, microchannel flat tubes have been widely used in many fields such as refrigeration and heating. For example, heat exchange components in automotive air conditioning condensers and evaporators often adopt microchannel flat tube structures. In order to ensure the sealing performance, connection reliability, and fluid transmission performance of microchannel flat tubes in the system, the end-capping process is a key processing step.

[0003] Traditional end-sealing methods often rely on simple die stamping or manual operation, which has many drawbacks for double-row porous microchannel flat tubes. Firstly, simple die stamping cannot accurately adapt to the complex shape of the double-row porous structure, easily causing uneven stress on the flat tube, resulting in inconsistent tube end deformation and affecting subsequent connection quality and sealing performance. Secondly, manual operation is not only inefficient but also greatly affected by human factors, making it difficult to guarantee the stability of end-sealing accuracy and failing to meet the dual requirements of product quality and production efficiency for large-scale industrial production. Furthermore, some existing end-sealing devices are also insufficient in terms of adaptability, ease of operation, and protection of the flat tube, making it difficult to effectively address the end-sealing needs of microchannel flat tubes of different specifications. Utility Model Content

[0004] This utility model addresses the aforementioned problems in the existing technology by providing a double-row multi-hole microchannel flat tube closing mechanism.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A double-row porous microchannel flat tube closing mechanism includes a base, on the upper surface of which a closing component, a telescopic component, and a compression component are mounted.

[0007] The closing assembly includes two symmetrically arranged closing modules. A first sliding groove is provided on the upper surface of the base. The closing modules can move back and forth in the first sliding groove. A tension spring is installed in the first sliding groove near the front and rear ends. One end of the tension spring is connected to the closing module and can pull the closing module to move towards the end of the first sliding groove.

[0008] The telescopic assembly includes a telescopic member, and a sliding block is installed at the telescopic end of the telescopic member. Two symmetrically arranged extrusion assemblies are installed on one side of the sliding block. The extrusion assembly includes a first linkage rod and a second extrusion rod. One end of the first linkage rod is rotatably connected to the sliding block, and the other end of the first linkage rod is rotatably connected to one end of the second extrusion rod. The middle part of the second extrusion rod is rotatably connected to the upper surface of the base through a fixing rod. The other end of the second extrusion rod faces the outer wall of the closing module. When the telescopic member extends, the two second extrusion rods on both sides can push the two closing modules to move towards the middle.

[0009] Preferably, the closing module includes a sliding seat and an extrusion block mounted on the sliding seat. First limiting plates are symmetrically arranged on both sides of the first slide groove. One side of the first limiting plate is fixedly connected to the base, and the other side of the first limiting plate protrudes from the edge of the first slide groove. First limiting grooves adapted to the first limiting plates are opened on both sides of the sliding seat. The sliding seat can move along the first limiting plates and the first slide groove through the first limiting grooves.

[0010] Preferably, a support block is installed inside the base, the support block is located in the middle of the first sliding groove, and the upper surface of the support block is provided with a positioning groove that matches the shape of the end of the flat tube, and the upper surface of the support block is higher than the first sliding groove.

[0011] Preferably, the lower outer side of the sliding seat has a groove, a first pin is installed in the groove, a second pin is installed in the first sliding groove, and the two ends of the tension spring are respectively connected to the first pin and the second pin.

[0012] Preferably, both the first linkage rod and the second extrusion rod adopt a V-shaped structure, with the notch of the first linkage rod facing outward and the notch of the second extrusion rod facing inward.

[0013] Preferably, the upper surface of the base is symmetrically equipped with two support plates, and the sliding block is slidably connected between the two support plates. The upper part of both support plates extends towards the middle and is provided with a second limiting plate. The front and rear sides of the sliding block are provided with second limiting grooves that are adapted to the second limiting plates. The sliding block can move along the support plates and the second limiting plates through the second limiting grooves.

[0014] Therefore, compared with the prior art, the present invention has the following advantages:

[0015] (1) This utility model, through the symmetrically arranged closing module and extrusion component, can apply uniform and precise pressure to the end of the double-row porous microchannel flat tube, ensuring that the closing deformation of each tube opening is consistent, effectively improving the closing quality, and meeting the subsequent high-precision connection and use requirements;

[0016] (2) This utility model drives the extrusion component to move quickly through the telescopic component, which drives the closing module to quickly complete the closing operation. Compared with the traditional manual or simple mold stamping method, it greatly shortens the closing time of a single flat tube, significantly improves production efficiency, and adapts to the pace of large-scale industrial production.

[0017] (3) This utility model enables the closing mechanism to automatically adapt to double-row multi-hole microchannel flat tubes of different lengths through the sliding cooperation between the first sliding groove and the closing module, as well as the elastic buffer of the tension spring. At the same time, the extrusion block can be replaced according to the specifications of the flat tube, which facilitates the closing processing of flat tubes with different diameters and number of holes, thus broadening the applicability of the equipment.

[0018] (4) By cooperating the first limiting plate and the first limiting groove, and the second limiting plate and the second limiting groove, this utility model ensures that the entire mechanism operates stably during high-speed and frequent closing operations, and is not prone to component displacement, jamming and other faults, thus ensuring the continuity of production and the stability of product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is an exploded view of the closing module in this utility model;

[0023] Figure 5 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 6 yes Figure 1 Enlarged view of point B in the middle.

[0025] Illustration: 1-Base; 2-Sealing assembly; 3-Telescopic assembly; 4-Extrusion assembly; 5-Sealing module; 6-First slide groove; 7-Tension spring; 8-Telescopic component; 9-Sliding block; 10-First linkage rod; 11-Second extrusion rod; 12-Fixing rod; 13-Sliding seat; 14-Extrusion block; 15-First limiting plate; 16-First limiting groove; 17-Support block; 18-Positioning groove; 19-Groove; 20-First pin; 21-Second pin; 22-Support plate; 23-Second limiting plate; 24-Second limiting groove. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0027] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Example 1:

[0029] like Figure 1 , 2 As shown in Figure 3, this utility model provides a technical solution: a double-row multi-hole microchannel flat tube closing mechanism, including a base 1, and a closing component 2, a telescopic component 3 and a compression component 4 installed on the upper surface of the base 1.

[0030] The aforementioned closing assembly 2 includes two symmetrically arranged closing modules 5. The upper surface of the base 1 is provided with a longitudinally distributed first sliding groove 6. The closing module 5 can move back and forth within the first sliding groove 6. A tension spring 7 is installed in the first sliding groove 6 near the front and rear ends. One end of the tension spring 7 is connected to the closing module 5 and can pull the closing module 5 towards the end of the first sliding groove 6 to maintain a standby state.

[0031] The aforementioned telescopic assembly 3 includes a telescopic member 8. A sliding block 9 is fixedly installed on the telescopic end of the telescopic member 8 by bolts. Two symmetrically arranged pressing assemblies 4 are installed on the left side of the sliding block 9. Each pressing assembly 4 includes a first linkage rod 10 and a second pressing rod 11. One end of the first linkage rod 10 is rotatably connected to the left side of the lower surface of the sliding block 9 by a rotating shaft. The other end of the first linkage rod 10 is rotatably connected to one end of the second pressing rod 11 by a rotating shaft. The middle part of the second pressing rod 11 is rotatably connected to the upper surface of the base 1 by a fixing rod 12. The fixing rod 12 is vertically fixed. Connected to the upper surface of the base 1, the other end of the second extrusion rod 11 faces the outer wall of the closing module 5. When the telescopic member 8 extends, the two second extrusion rods 11 on both sides can push the two closing modules 5 to move towards the middle. The first linkage rod 10 and the second extrusion rod 11 both adopt a V-shaped structure with an included angle greater than 90 degrees. The concave of the first linkage rod 10 faces outward, and the concave of the second extrusion rod 11 faces inward, so that a greater pushing force can be generated when the telescopic member 8 extends. The telescopic member 8 can be a push rod motor, a cylinder or a hydraulic cylinder. Its driving method is existing technology and will not be described in detail here.

[0032] Example 2:

[0033] like Figure 4 , 5 As shown, this utility model provides another technical solution: a double-row multi-hole microchannel flat tube closing mechanism. The difference from embodiment 1 is that the closing module 5 includes a sliding seat 13 and an extrusion block 14 fixedly installed on the sliding seat 13. The left and right sides of the first slide groove 6 are symmetrically provided with first limiting plates 15. One side of the first limiting plate 15 is fixedly connected to the base 1 by bolts. The other side of the first limiting plate 15 protrudes from the edge of the first slide groove 6. The two sides of the sliding seat 13 are provided with first limiting grooves 16 that are adapted to the first limiting plate 15. The sliding seat 13 can move along the first limiting plate 15 and the first slide groove 6 through the first limiting grooves 16.

[0034] Specifically, a support block 17 is fixedly installed inside the base 1 by bolts. The support block 17 is located in the middle of the first sliding groove 6, and the upper surface of the support block 17 is provided with a positioning groove 18 that matches the shape of the end of the flat tube. The upper surface of the support block 17 is higher than the first sliding groove 6 and is used to position the flat tube.

[0035] Specifically, a groove 19 is provided on the lower outer side of the sliding seat 13. A first pin 20 is fixedly installed in the groove 19, and a second pin 21 is fixedly installed in the first sliding groove 6. The two ends of the tension spring 7 are connected to the first pin 20 and the second pin 21 respectively. After the closing action is completed, the closing module 5 is pulled to reset, which facilitates the next operation and also buffers the impact force during the closing process to a certain extent.

[0036] Example 3:

[0037] like Figure 1 , 6 As shown, this utility model provides another technical solution: a double-row multi-hole microchannel flat tube closing mechanism. The difference from embodiment 1 is that two support plates 22 are symmetrically installed on the upper surface of the base 1. The sliding block 9 is slidably connected between the two support plates 22. The upper part of both support plates 22 extends towards the middle and is provided with a second limiting plate 23. The front and rear sides of the sliding block 9 are provided with second limiting grooves 24 that are adapted to the second limiting plate 23. The sliding block 9 can move along the support plate 22 and the second limiting plate 23 through the second limiting grooves 24, providing support and guidance for the sliding block 9 and ensuring its stable sliding.

[0038] The double-row multi-hole microchannel flat tube closing mechanism provided by this utility model is used by placing the double-row multi-hole microchannel flat tube in the positioning groove 18 of the support block 17, activating the telescopic component 8, causing the sliding block 9 to drive the extrusion component 4 to move. The extrusion component 4, through the transmission of the first linkage rod 10 and the second extrusion rod 11, pushes the closing module 5 to move towards the middle to close the flat tube. After closing, the telescopic component 8 retracts, and the tension spring 7 pulls the closing module 5 back to the initial position, completing one closing operation.

[0039] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A double-row porous microchannel flat tube closing mechanism, comprising a base (1), characterized in that: The upper surface of the base (1) is equipped with a closing component (2), a telescopic component (3) and a pressing component (4). The closing assembly (2) includes two symmetrically arranged closing modules (5) at the front and back. The upper surface of the base (1) is provided with a first sliding groove (6). The closing module (5) can move back and forth in the first sliding groove (6). A tension spring (7) is installed in the first sliding groove (6) near the front and back ends. One end of the tension spring (7) is connected to the closing module (5) and can pull the closing module (5) to the end of the first sliding groove (6). The telescopic component (3) includes a telescopic member (8), and a sliding block (9) is installed on the telescopic end of the telescopic member (8). Two symmetrically arranged extrusion components (4) are installed on one side of the sliding block (9). The extrusion component (4) includes a first linkage rod (10) and a second extrusion rod (11). One end of the first linkage rod (10) is rotatably connected to the sliding block (9), and the other end of the first linkage rod (10) is rotatably connected to one end of the second extrusion rod (11). The middle part of the second extrusion rod (11) is rotatably connected to the upper surface of the base (1) through a fixing rod (12). The other end of the second extrusion rod (11) faces the outer wall of the closing module (5). When the telescopic member (8) extends, the two second extrusion rods (11) on both sides can push the two closing modules (5) to move towards the middle.

2. The double-row porous microchannel flat tube closing mechanism according to claim 1, characterized in that: The closing module (5) includes a sliding seat (13) and an extrusion block (14) installed on the sliding seat (13). The first sliding groove (6) is symmetrically provided with first limiting plates (15) on both sides. One side of the first limiting plate (15) is fixedly connected to the base (1), and the other side of the first limiting plate (15) protrudes from the edge of the first sliding groove (6). The sliding seat (13) is provided with first limiting grooves (16) on both sides that are adapted to the first limiting plate (15). The sliding seat (13) can move along the first limiting plate (15) and the first sliding groove (6) through the first limiting groove (16).

3. The double-row porous microchannel flat tube closing mechanism according to claim 2, characterized in that: The base (1) is equipped with a support block (17) inside. The support block (17) is located in the middle of the first slide groove (6), and the upper surface of the support block (17) is provided with a positioning groove (18) that matches the shape of the end of the flat tube. The upper surface of the support block (17) is higher than the first slide groove (6).

4. The double-row porous microchannel flat tube closing mechanism according to claim 3, characterized in that: The lower outer side of the sliding seat (13) is provided with a groove (19), a first pin (20) is installed in the groove (19), a second pin (21) is installed in the first groove (6), and the two ends of the tension spring (7) are respectively connected to the first pin (20) and the second pin (21).

5. The double-row porous microchannel flat tube closing mechanism according to claim 1, characterized in that: Both the first linkage rod (10) and the second extrusion rod (11) adopt a V-shaped structure, with the notch of the first linkage rod (10) facing outward and the notch of the second extrusion rod (11) facing inward.

6. The double-row porous microchannel flat tube closing mechanism according to claim 1, characterized in that: The upper surface of the base (1) is symmetrically equipped with two front and rear support plates (22). The sliding block (9) is slidably connected between the two support plates (22). The upper part of the two support plates (22) extends towards the middle and is provided with a second limiting plate (23). The front and rear sides of the sliding block (9) are provided with a second limiting groove (24) that is adapted to the second limiting plate (23). The sliding block (9) can move along the support plate (22) and the second limiting plate (23) through the second limiting groove (24).

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