Extrusion forming die for refrigeration copper pipe

Abstract

This utility model relates to the field of copper tube processing technology, and more particularly to a refrigeration copper tube extrusion molding die. The technical solution includes: a processing panel with a placement frame on it; a mounting plate on the side end of the processing panel; a second hydraulic rod mounted on the side end of the mounting plate; a U-shaped bracket fixed to the bottom end of the processing panel; a guide rod fixedly installed inside the U-shaped bracket; a drive motor mounted on the front end of the U-shaped bracket; and a lead screw on the output shaft of the drive motor; a mounting frame fixed to the rear end of the placement frame; a copper tube body slidably fitted inside the placement frame; and a first hydraulic rod mounted inside the mounting frame; and an extrusion mold body mounted on the output shaft of the second hydraulic rod via a connecting plate. This utility model satisfies the requirements of copper tube processing and forming, allows for lubrication during forming to avoid excessive friction affecting processing, and allows for multiple forming processes to avoid damage to the tube caused by excessive force during a single forming.

Description

Technical Field

[0001] This utility model relates to the field of copper tube processing technology, specifically to a refrigeration copper tube extrusion molding die. Background Technology

[0002] As a crucial conduit for refrigerant circulation in air conditioning systems, copper pipes are as vital as blood vessels in the human body, undertaking the core task of heat and cold transfer. In the manufacturing process of copper pipes, die extrusion expansion is a common production method.

[0003] A search revealed that patent application CN222153652U discloses a refrigeration copper tube extrusion molding die. While the device's clamping plates and bolts allow for baffle movement, facilitating the extrusion of steel tubes of varying lengths and simplifying pipe handling for workers, thus protecting their health, it has certain drawbacks in practical application. Direct extrusion molding, due to high friction, easily causes tube deformation. Furthermore, the excessive extrusion pressure required for a one-step molding process often damages the tube. Therefore, existing refrigeration copper tube processing equipment urgently needs improvement to overcome these technical deficiencies and enhance the processing quality and efficiency of refrigeration copper tubes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a refrigeration copper tube extrusion molding die, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A refrigeration copper tube extrusion molding die includes a processing panel, a placement rack on the processing panel, a mounting plate on the side end face of the processing panel, and a second hydraulic rod mounted on the side end face of the mounting plate.

[0007] A U-shaped bracket is fixed to the bottom surface of the processing panel, a guide rod is fixedly installed inside the U-shaped bracket, a drive motor is installed on the front end surface of the U-shaped bracket, and a lead screw is provided on the output shaft of the drive motor;

[0008] The rear end face of the placement frame is fixed with a mounting frame, a copper tube body is slidably sleeved inside the placement frame, and a first hydraulic rod is installed inside the mounting frame.

[0009] The output shaft of the second hydraulic rod is equipped with an extrusion mold body via a connecting plate, and the extrusion mold body has a liquid outlet.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, a support plate is fixed to the bottom surface of the processing panel, and a support base is installed on the bottom surface of the support plate.

[0012] The beneficial effects of adopting the above-mentioned further solutions are:

[0013] The support plate and the support base work together to support and install the mold structure and the placement plane.

[0014] Furthermore, an L-shaped fixing bracket is installed on the bottom surface of the mounting plate, and the end of the L-shaped fixing bracket facing away from the mounting plate is installed on the processing panel.

[0015] The beneficial effects of adopting the above-mentioned further solutions are:

[0016] The L-shaped mounting bracket forms a stable triangular support structure, connecting the mounting plate to the processing panel.

[0017] Furthermore, an I-shaped guide frame is welded to the bottom end face of the placement frame, the I-shaped guide frame is slidably sleeved on the guide rod, and the I-shaped guide frame is threaded onto the lead screw.

[0018] The beneficial effects of adopting the above-mentioned further solutions are:

[0019] The I-shaped guide frame, in conjunction with the guide rod and lead screw, enables precise linear motion of the placement frame on the guide rod. When the drive motor rotates the lead screw, the I-shaped guide frame, connected to the lead screw via a thread, moves along the axial direction of the lead screw. Simultaneously, the guide rod restricts the movement trajectory of the I-shaped guide frame, ensuring it can only move in a straight line. This design allows the placement frame to move along a predetermined path, thereby driving the copper tube body inside the placement frame to move sequentially through extrusion dies of different diameters for extrusion expansion and forming.

[0020] Furthermore, a circular limiting frame is installed on the processing panel to limit the movement of the copper tube body.

[0021] The beneficial effects of adopting the above-mentioned further solutions are:

[0022] The circular limiting frame can restrict the position of the copper tube body from the side, preventing the copper tube body from shifting laterally within the placement frame.

[0023] Furthermore, there are two first hydraulic rods, and each of the output shafts of the two first hydraulic rods is equipped with a clamping block via a connecting frame. The clamping block clamps and limits the movement of the copper tube body.

[0024] The beneficial effects of adopting the above-mentioned further solutions are:

[0025] The two first hydraulic rods can work synchronously, driving the clamping blocks to hold the copper tube body through the connecting frame. This double-sided clamping method provides a more stable and uniform clamping force, ensuring that the copper tube body does not rotate or shift during processing. During extrusion, the two first hydraulic rods can sequentially lift the two clamping blocks, allowing the copper tube to undergo extrusion and expansion. This avoids the simultaneous lifting and releasing affecting the clamping limit of the copper tube, thereby improving the quality of copper tube extrusion molding.

[0026] Furthermore, there are three extrusion die bodies in total, and the diameters of the three extrusion die bodies are arranged in order of increasing size. Each extrusion die body is provided with a liquid inlet pipe.

[0027] The beneficial effects of adopting the above-mentioned further solutions are:

[0028] The system features three extrusion die bodies with progressively increasing diameters, enabling the gradual extrusion and expansion of the copper tube. This avoids damage to the copper tube caused by excessive force during a single forming process. During extrusion, the smaller diameter die body is used first to initially compress the copper tube, allowing it to gradually adapt to the deformation process. Then, larger diameter dies are used sequentially for further extrusion and expansion, ensuring the copper tube is precisely formed to the predetermined size and shape. Simultaneously, the inclusion of a liquid inlet allows auxiliary liquids, such as lubricants, to be injected into the die body during extrusion. These lubricants are then discharged into the copper tube through the outlet. These auxiliary liquids reduce friction between the copper tube and the die, making the extrusion process smoother, improving the surface quality of the copper tube, and reducing surface scratches and other defects.

[0029] This utility model provides a refrigeration copper tube extrusion molding die. It has the following beneficial effects:

[0030] The circular limiting frame can restrict the position of the copper tube body from the side, preventing it from shifting laterally within the placement frame; the two first hydraulic rods drive the clamping blocks through the connecting frame to clamp the copper tube body from both sides, providing a more stable and uniform clamping force, ensuring that the copper tube will not rotate or shift during processing, and during the extrusion process, the two first hydraulic rods can sequentially drive the clamping blocks to lift, avoiding simultaneous release of the clamping on the copper tube and affecting the limiting, effectively improving the quality of copper tube extrusion molding.

[0031] The system features three extrusion die bodies with progressively increasing diameters, enabling the copper tube to be extruded and expanded step by step. This avoids damage to the copper tube caused by excessive force during a single forming process, ensuring that the copper tube can be precisely formed according to the predetermined size and shape.

[0032] The liquid inlet pipe on the extrusion die body can inject auxiliary liquid (such as lubricant) into the die during the extrusion process. The lubricant is then discharged into the copper tube through the outlet, reducing the friction between the copper tube and the die, making the extrusion process smoother, improving the surface quality of the copper tube, and reducing defects such as surface scratches. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a front view schematic diagram of the present invention;

[0036] Figure 2 This is a rear view schematic diagram of the present invention;

[0037] Figure 3 This is a schematic diagram of the installation of the placement rack of this utility model;

[0038] Figure 4 This is an enlarged schematic diagram of the U-shaped bracket of this utility model.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. Processing panel; 101. Support plate; 102. Support base; 103. Circular limit frame; 2. Placement rack; 201. Copper tube body; 202. Mounting frame; 203. First hydraulic rod; 204. Connecting frame; 205. Clamping block; 3. Mounting plate; 301. L-shaped fixing frame; 302. Connecting plate; 303. Second hydraulic rod; 304. Liquid inlet pipe; 305. Extrusion die body; 306. Liquid outlet; 4. U-shaped bracket; 401. I-shaped guide frame; 402. Drive motor; 403. Guide rod; 404. Lead screw. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0043] Example 1

[0044] A refrigeration copper tube extrusion molding die includes a processing panel 1, a placement rack 2 on the processing panel 1, a mounting plate 3 on the side end face of the processing panel 1, and a second hydraulic rod 303 mounted on the side end face of the mounting plate 3.

[0045] A U-shaped bracket 4 is fixed to the bottom end face of the processing panel 1. A guide rod 403 is fixedly installed inside the U-shaped bracket 4. A drive motor 402 is installed on the front end face of the U-shaped bracket 4. A lead screw 404 is provided on the output shaft of the drive motor 402.

[0046] A mounting bracket 202 is fixed to the rear end face of the placement frame 2. A copper tube body 201 is slidably sleeved inside the placement frame 2. A first hydraulic rod 203 is installed inside the mounting bracket 202.

[0047] The output shaft of the second hydraulic rod 303 is equipped with an extrusion mold body 305 via a connecting plate 302. The extrusion mold body 305 has a liquid outlet 306.

[0048] A support plate 101 is fixed to the bottom surface of the processing panel 1, and a support base 102 is installed on the bottom surface of the support plate 101. The support plate 101 and the support base 102 cooperate with each other to support and install the mold structure and the placement plane.

[0049] An L-shaped fixing bracket 301 is installed on the bottom surface of the mounting plate 3. The end of the L-shaped fixing bracket 301 facing away from the mounting plate 3 is installed on the processing panel 1. The L-shaped fixing bracket 301 forms a stable triangular support structure, connecting the mounting plate 3 and the processing panel 1 together.

[0050] A circular limit frame 103 is installed on the processing panel 1. The circular limit frame 103 limits the copper tube body 201. The circular limit frame 103 can restrict the position of the copper tube body 201 from the side and prevent the copper tube body 201 from moving laterally in the placement frame 2.

[0051] Two first hydraulic rods 203 are provided. Each first hydraulic rod 203 has a clamping block 205 mounted on its output shaft via a connecting frame 204. The clamping blocks 205 clamp and limit the copper tube body 201. The two first hydraulic rods 203 can work synchronously, driving the clamping blocks 205 to clamp the copper tube body 201 via the connecting frame 204. This double-sided clamping method provides a more stable and uniform clamping force, ensuring that the copper tube body 201 does not rotate or shift during processing. During extrusion, the two first hydraulic rods 203 can sequentially lift the two clamping blocks 205, allowing the copper tube to undergo extrusion and expansion. This avoids the simultaneous lifting and releasing affecting the clamping and limiting of the copper tube, thereby improving the quality of the copper tube extrusion molding.

[0052] Example 2

[0053] To prevent damage to the copper tube from excessive force during single-stage extrusion and expansion during processing, for example, such as... Figures 1 to 4 As shown, this utility model also includes:

[0054] An I-shaped guide frame 401 is welded to the bottom end of the placement frame 2. The I-shaped guide frame 401 is slidably sleeved on the guide rod 403 and threadedly mounted on the lead screw 404. The cooperation between the I-shaped guide frame 401, the guide rod 403, and the lead screw 404 enables the placement frame 2 to move precisely linearly on the guide rod 403. When the drive motor 402 drives the lead screw 404 to rotate, the I-shaped guide frame 401, due to its threaded connection with the lead screw 404, will move along the axial direction of the lead screw 404. At the same time, the guide rod 403 can restrict the movement trajectory of the I-shaped guide frame 401, allowing it to move only in a straight line. This design allows the placement frame 2 to move along a predetermined path, thereby driving the copper tube body 201 inside the placement frame 2 to move sequentially through extrusion die bodies 305 of different diameters for extrusion expansion forming.

[0055] There are three extrusion die bodies 305, with their diameters increasing sequentially. Each die body 305 has a liquid inlet pipe 304. This arrangement of three extrusion die bodies 305 allows for gradual extrusion and expansion of the copper tube, preventing damage caused by excessive force during a single forming process. During extrusion, the smaller diameter die body 305 is used first to initially extrude the copper tube body 201, allowing it to gradually adapt to the deformation process. Then, the larger diameter die bodies 305 are used for further extrusion and expansion, ensuring the copper tube is precisely formed to the predetermined size and shape. Simultaneously, the liquid inlet pipe 304 allows for the injection of auxiliary liquids, such as lubricants, into the die during extrusion, which are then discharged into the copper tube through the liquid outlet 306. These auxiliary liquids reduce friction between the copper tube and the die, making the extrusion process smoother, improving the surface quality of the copper tube, and reducing surface scratches and other defects.

[0056] Working principle:

[0057] Preparation: Place the copper tube body 201 into the placement rack 2. The circular limiting rack 103 restricts the position of the copper tube body 201 from the side to prevent it from shifting laterally.

[0058] The two first hydraulic rods 203 work synchronously, driving the clamping block 205 to clamp the copper tube body 201 on both sides through the connecting frame 204, providing a stable and uniform clamping force to ensure that the copper tube will not rotate or shift during processing.

[0059] Placement rack 2 moves: Start the drive motor 402 on the front end of the U-shaped bracket 4, and the output shaft of the drive motor 402 drives the lead screw 404 to rotate.

[0060] Since the I-shaped guide frame 401 welded to the bottom end face of the placement frame 2 is slidably sleeved on the guide rod 403 and is threadedly installed on the lead screw 404, when the lead screw 404 rotates, the I-shaped guide frame 401 will move along the axial direction of the lead screw 404. At the same time, the guide rod 403 restricts its movement trajectory, so that it can only make linear movements, thereby driving the placement frame 2 and the internal copper tube body 201 to move along a predetermined path.

[0061] Copper tube extrusion molding: The placement frame 2 drives the copper tube body 201 to move sequentially to the three extrusion mold bodies 305 with diameters that increase sequentially from small to large for extrusion expansion molding.

[0062] During the extrusion process, the two first hydraulic rods 203 sequentially drive the two clamping blocks 205 to lift up, so that the copper tube can be extruded and expanded, avoiding the simultaneous lifting and loosening of the clamping blocks from affecting the limit of the copper tube.

[0063] The second hydraulic rod 303 on the side end face of the mounting plate 3 is activated. The output shaft of the second hydraulic rod 303 pushes the extrusion die body 305 to extrude the copper tube body 201 through the connecting plate 302.

[0064] Auxiliary liquid (such as lubricant) is injected into the mold through the liquid inlet pipe 304 on the extrusion mold body 305. This auxiliary liquid is discharged into the copper tube through the liquid outlet 306, reducing the friction between the copper tube and the mold, making the extrusion process smoother, improving the surface quality of the copper tube, and the lubricant can be drawn into the liquid inlet pipe 304 through the pump body connecting pipe for use.

[0065] Processing completed: The copper tube body 201 passes through three extrusion die bodies 305 in sequence, and is gradually extruded and expanded to achieve the predetermined size and shape, thus completing the processing.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A refrigeration copper tube extrusion molding die, comprising a processing panel (1), a placement rack (2) provided on the processing panel (1), a mounting plate (3) provided on the side end face of the processing panel (1), and a second hydraulic rod (303) mounted on the side end face of the mounting plate (3), characterized in that: A U-shaped bracket (4) is fixed to the bottom end face of the processing panel (1). A guide rod (403) is fixedly installed inside the U-shaped bracket (4). A drive motor (402) is installed on the front end face of the U-shaped bracket (4). A lead screw (404) is provided on the output shaft of the drive motor (402). The rear end face of the placement frame (2) is fixed with a mounting frame (202), a copper tube body (201) is slidably sleeved inside the placement frame (2), and a first hydraulic rod (203) is installed inside the mounting frame (202). The output shaft of the second hydraulic rod (303) is equipped with an extrusion mold body (305) via a connecting plate (302), and the extrusion mold body (305) has a liquid outlet (306).

2. The extrusion forming die for refrigeration copper pipe according to claim 1, characterized in that: The bottom surface of the processing panel (1) is fixed with a support plate (101), and the bottom surface of the support plate (101) is equipped with a support base (102).

3. The extrusion forming die for refrigeration copper pipe according to claim 1, characterized in that: An L-shaped fixing bracket (301) is installed on the bottom surface of the mounting plate (3), and the end of the L-shaped fixing bracket (301) facing away from the mounting plate (3) is installed on the processing panel (1).

4. The extrusion forming die for refrigeration copper pipe according to claim 1, characterized in that: The bottom end face of the placement frame (2) is welded with an I-shaped guide frame (401), which is slidably sleeved on the guide rod (403) and is threadedly installed on the lead screw (404).

5. The extrusion forming die for refrigeration copper pipe according to claim 1, characterized in that: A circular limiting frame (103) is installed on the processing panel (1), which limits the copper tube body (201).

6. The refrigeration copper tube extrusion die according to claim 1, characterized in that: There are two first hydraulic rods (203). Each of the two first hydraulic rods (203) has a clamping block (205) installed on its output shaft via a connecting frame (204). The clamping block (205) clamps and limits the copper tube body (201).

7. The extrusion forming die for refrigeration copper pipe according to claim 1, characterized in that: There are three extrusion die bodies (305), and the diameters of the three extrusion die bodies (305) are arranged in order of increasing size. A liquid inlet pipe (304) is provided on the extrusion die body (305).

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