A die casting apparatus for finned tube processing

Abstract

The present application relates to the field of finned tube die casting, and discloses a die casting equipment for finned tube processing, which comprises a bottom plate, two supporting plates are connected to the upper surface of the bottom plate near the right side, a fixed mold is installed between the two supporting plates, a pressing mold is arranged above the fixed mold through a lifting structure, a side disc is arranged at one end of the fixed mold through a moving-out rotating structure, a middle column is connected to the middle of one side surface of the side disc, an intermittent rod is arranged on the upper surface of the bottom plate through an intermittent moving structure, an intermittent sleeve is installed at one end of the intermittent rod inserted into the fixed mold, the intermittent sleeve is movably sleeved on the middle column, and a feeding nozzle is installed at one end of the lower surface of the fixed mold, the intermittent sleeve at one end of the intermittent rod is driven to move intermittently in the pressing mold and the fixed mold through the intermittent moving structure, so that the filling space inside the pressing mold and the fixed mold is gradually expanded when the raw materials are added, the raw materials are filled more closely, the bubble residues are reduced, and the die casting work quality is improved.

Description

Technical Field

[0001] This invention relates to the technical field of finned tube die casting, and in particular to a die casting apparatus for finned tube processing. Background Technology

[0002] Finned tubes, also known as heat exchange tubes, are heat exchange elements used to enhance heat transfer. They improve heat exchange efficiency by increasing surface area and are suitable for high-temperature, high-pressure, and corrosive environments in industries such as boilers, power, and metallurgy. Their core function is to reduce contact thermal resistance and they have anti-corrosion and wear-resistant properties. They are often used in waste heat recovery and heat exchange equipment. During the production of finned tubes, die-casting equipment is used for die-casting processing.

[0003] In existing finned tube die-casting equipment, a lifting structure is used to move the moving mold down to the fixed mold, and raw materials are introduced between the fixed mold and the moving mold to perform die-casting processing.

[0004] However, in the actual processing, as the raw material is gradually fed into the interior of the moving mold and the fixed mold through the nozzle, the raw material flows between the moving mold and the fixed mold to fill the internal space. This can cause air bubbles to remain inside the raw material, or even cause some areas to be not fully filled with raw material. Therefore, there are areas for improvement. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides a die-casting apparatus for processing finned tubes.

[0006] The die-casting equipment for finned tube processing provided by this invention adopts the following technical solution:

[0007] A die-casting device for finned tube processing includes a base plate, two support plates connected to the upper right side of the base plate, a fixed mold installed between the two support plates, a clamping mold provided above the fixed mold via a lifting structure, a side plate provided at one end of the fixed mold via a rotating mechanism, a central column connected to the middle of one side of the side plate, an intermittent rod provided on the upper part of the base plate via an intermittent moving structure, an intermittent sleeve installed at one end of the intermittent rod inserted into the fixed mold, the intermittent sleeve being movably fitted onto the central column, and a feed nozzle installed at the lower end of the fixed mold.

[0008] Preferably, the intermittent moving structure includes a horizontal groove formed on the base plate, a slide block slidably disposed in the horizontal groove, a driving plate disposed on the slide block, one end of the intermittent rod connected to the driving plate, a plurality of first driving grooves equally spaced on the driving plate, adjacent two first driving grooves connected by a second driving groove, a U-shaped plate disposed on the base plate above the driving plate, a through groove formed in the middle of the U-shaped plate, a fixed rod connected between the two end walls of the through groove, a movable block movably sleeved on the fixed rod, the movable block slidably disposed in the through groove, an electric push rod mounted on the upper side of one side of the U-shaped plate, one end of the output shaft of the electric push rod connected to the movable block, a cylinder disposed on the movable block, a first insert rod mounted on the bottom end of the cylinder output shaft, the bottom end of the first insert rod movably inserted into the first driving groove.

[0009] Preferably, the lifting structure includes a fixed frame mounted on the base plate, a hydraulic cylinder mounted under the fixed frame, a lifting rod connected to the bottom end of the output shaft of the hydraulic cylinder, and the bottom end of the lifting rod connected to the clamping mold.

[0010] Preferably, the rotating removal structure includes a support rod connected to the base plate, a fixing ring installed at one end of the support rod, a rotating column moving through the fixing ring, one end of the rotating column being connected to the side plate through a flipping structure, a vertical groove being provided on the rotating column, a fourth arc-shaped groove communicating with the vertical groove being provided on the rotating column, a second insert rod being fixedly passed through the fixing ring, one end of the second insert rod being movably inserted into the vertical groove, and the rotating column being connected to the clamping mold through a first driving structure.

[0011] Preferably, the first driving structure includes a sleeve rotatably fitted on a rotating column. The sleeve is I-shaped, and a lifting sleeve is movably fitted on the sleeve. A limiting strip is provided on the side of the sleeve, and the limiting strip movably passes through a limiting groove on the inner wall of the lifting sleeve. A driving rod is connected to the side of the lifting sleeve, and one end of the driving rod is connected to a fixed mold.

[0012] Preferably, the flipping structure includes a U-shaped seat installed at one end of the rotating column, a flipping shaft rotating through the U-shaped seat, flipping plates fixedly sleeved at both ends of the flipping shaft, one end of the flipping plate being connected to a side plate, and a second driving structure being provided between the flipping shaft and the sleeve.

[0013] Preferably, the second driving structure includes a gear sleeved in the middle of the flipping shaft, a through groove is opened in the middle of the inner wall of the U-shaped seat, a through plate slides through the through groove, a fixed plate is fixedly sleeved on the bottom end of the sleeve, an arc plate is connected to the upper edge of the fixed plate, a first arc groove and a second arc groove are opened on the inner wall of the arc plate, the first arc groove and the second arc groove are connected by a third arc groove, an L-shaped rod is connected to the bottom end of the through plate, and one end of the L-shaped rod is movably inserted into the first arc groove.

[0014] In summary, the present invention has the following beneficial technical effects:

[0015] 1. This invention sets up an intermittent sleeve, an intermittent rod, and an intermittent moving structure. The intermittent moving structure drives the intermittent sleeve at one end of the intermittent rod to move intermittently within the clamping mold and the fixed mold. In this way, when adding raw materials, the filling space inside the clamping mold and the fixed mold is gradually expanded, making the raw materials fill more tightly, reducing the residual air bubbles, thereby improving the quality of die casting.

[0016] 2. This invention, by setting up a lifting structure, a moving and rotating structure, a flipping structure, a first driving structure, and a second driving structure, utilizes the lifting structure and the driving clamping mold to move down onto the fixed mold for die casting. After pressing is completed, the lifting structure drives the clamping mold to move up and reset. Through the first driving structure and the moving and rotating structure, the pressed tube is automatically moved out of the fixed mold. Furthermore, through the second driving structure and the flipping structure, after the finned tube is moved out of the fixed mold, it is driven to rotate out from above the fixed mold. At the same time, it drives the finned tube to flip downward for automatic unloading. This not only makes the operation more labor-saving and convenient but also improves safety, avoiding the problem of operators being burned. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a die-casting equipment for finned tube processing in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the intermittent moving structure in an embodiment of the present invention;

[0019] Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fixed mold in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure below the drive plate in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure at the rotating column in an embodiment of the present invention;

[0023] Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of the structure at point B;

[0024] Figure 8 This is a schematic diagram of the structure on the upper part of the drive plate in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support plate; 3. Fixed mold; 4. Clamping mold; 5. Side plate; 6. Intermediate column; 7. Intermittent sleeve; 8. Intermittent rod; 9. U-shaped plate; 10. Fixed rod; 11. Through groove; 12. Electric push rod; 13. Moving block; 14. Cylinder; 15. First insert rod; 16. Driving plate; 17. Horizontal groove; 18. First driving groove; 19. Second driving groove; 20. Fixed frame; 21. Hydraulic cylinder; 22. Lifting rod; 23. Support rod; 24. Fixing ring; 25. Second insert rod; 26. Vertical groove; 27. Fourth arc groove; 28. Rotating column; 29. ​​Sleeve; 30. Limiting strip; 31. Lifting sleeve; 32. Driving rod; 33. U-shaped seat; 34. Flipping shaft; 35. Flipping plate; 36. Through groove; 37. Through plate; 38. Gear; 39. Fixing disc; 40. Arc plate; 41. L-shaped rod; 42. First arc groove; 43. Third arc groove; 44. Second arc groove; 45. Slide seat. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0027] Reference Figures 1-8 This invention discloses a die-casting equipment for finned tube processing, including a base plate 1, two support plates 2 connected to the upper right side of the base plate 1, a fixed mold 3 installed between the two support plates 2, a clamping mold 4 provided above the fixed mold 3 via a lifting structure, a side plate 5 provided at one end of the fixed mold 3 via a rotating structure, a central column 6 connected to the middle of one side of the side plate 5, an intermittent rod 8 provided on the upper part of the base plate 1 via an intermittent moving structure, an intermittent sleeve 7 installed at one end of the intermittent rod 8 inserted into the fixed mold 3, the intermittent sleeve 7 being movably fitted on the central column 6, and a feed nozzle installed at the lower end of the fixed mold 3;

[0028] The intermittent moving structure includes a horizontal groove 17 formed on the base plate 1, a slide block 45 slidably disposed in the horizontal groove 17, a driving plate 16 disposed on the slide block 45, an intermittent rod 8 connected at one end to the driving plate 16, a plurality of first driving grooves 18 equally spaced on the driving plate 16, and two adjacent first driving grooves 18 connected by a second driving groove 19, a U-shaped plate 9 disposed on the base plate 1 and on the driving plate 16, a through groove 11 formed in the middle of the U-shaped plate 9, a fixed rod 10 connected between the two ends of the through groove 11, a movable block 13 movably sleeved on the fixed rod 10, the movable block 13 slidably disposed in the through groove 11, an electric push rod 12 mounted on the upper side of one side of the U-shaped plate 9, one end of the output shaft of the electric push rod 12 connected to the movable block 13, a cylinder 14 disposed on the movable block 13, a first insert rod 15 mounted at the bottom end of the output shaft of the cylinder 14, and the bottom end of the first insert rod 15 movably inserted into the first driving groove 18;

[0029] The lifting structure includes a fixed frame 20 mounted on the base plate 1, a hydraulic cylinder 21 mounted below the fixed frame 20, a lifting rod 22 connected to the bottom end of the output shaft of the hydraulic cylinder 21, and a clamping mold 4 connected to the bottom end of the lifting rod 22. Activating the hydraulic cylinder 21 causes the clamping mold 4 to move downwards and clamp onto the fixed mold 3. Raw material is then fed into the clamping mold 4 and the fixed mold 3 through a feed nozzle. During the feeding process, an electric push rod 12 on the U-shaped plate 9 is activated, causing a moving block 13 to reciprocate within the through groove 11. When the moving block 13 causes the bottom end of the first insert rod 15 to move away from the electric push rod 12 in the first driving groove 18, the first... The bottom end of the insert rod 15 presses against the wall of the first driving groove 18, pushing the driving plate 16 to move to the left. It also drives the intermittent sleeve 7 to move within the fixed mold 3 via the intermittent rod 8. When the moving block 13 drives the first insert rod 15 to move in the opposite direction, it causes the bottom end of the first insert rod 15 to press against the wall of the second driving groove 19, continuing to push the driving plate 16 to move to the left. This allows the intermittent sleeve 7 to move intermittently within the fixed mold 3, thereby gradually expanding the space inside the fixed mold 3 for accommodating the raw material. This makes the raw material fill the fixed mold 3 more tightly, reducing the problem of air bubbles inside the raw material, and thus improving the quality of the die casting process.

[0030] See Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 The rotating structure includes a support rod 23 connected to the base plate 1. A fixing ring 24 is installed at one end of the support rod 23. A rotating column 28 moves through the fixing ring 24. One end of the rotating column 28 is connected to the side plate 5 through a flipping structure. A vertical groove 26 is provided on the rotating column 28. A fourth arc-shaped groove 27 is provided on the rotating column 28 to connect with the vertical groove 26. A second insert rod 25 is fixedly passed through the fixing ring 24. One end of the second insert rod 25 moves into the vertical groove 26. The rotating column 28 is connected to the clamping mold 4 through a first driving structure.

[0031] The first driving structure includes a sleeve 29 rotatably mounted on a rotating column 28. The sleeve 29 is I-shaped, and a lifting sleeve 31 is movably mounted on the sleeve 29. A limiting strip 30 is provided on the side of the sleeve 29, which moves through a limiting groove on the inner wall of the lifting sleeve 31. A driving rod 32 is connected to the side of the lifting sleeve 31, and one end of the driving rod 32 is connected to the fixed mold 3. After die casting, the hydraulic cylinder 21 is activated to drive the bottom end of the lifting rod 22 to move away from the fixed mold 3, pressing against the mold 4. As the mold 4 moves upward, the driving rod... 32 drives the lifting sleeve 31 to move up to the upper inner wall of the sleeve 29. As the clamping mold 4 continues to move up, the lifting sleeve 31 drives the sleeve 29 and the rotating column 28 to move up as a whole. When the fourth arc groove 27 on the rotating column 28 moves to the second insert rod 25, as the rotating column 28 continues to move up, the second insert rod 25 squeezes the wall of the fourth arc groove 27, pushing the rotating column 28 to drive the side plate 5 to rotate, thereby rotating the middle column 6 and the die-cast finned tube above the fixed mold 3 for easy material removal.

[0032] See Figure 6 and Figure 7 The flipping structure includes a U-shaped seat 33 installed at one end of the rotating column 28, a flipping shaft 34 rotating through the U-shaped seat 33, flipping plates 35 fixedly sleeved at both ends of the flipping shaft 34, one end of the flipping plate 35 connected to the side plate 5, and a second driving structure provided between the flipping shaft 34 and the sleeve 29.

[0033] The second driving structure includes a gear 38 sleeved in the middle of the flipping shaft 34, a through groove 36 opened in the middle of the inner wall of the U-shaped seat 33, through which a through plate 37 slides. A fixed plate 39 is fixedly sleeved on the bottom end of the sleeve 29. An arc plate 40 is connected to the upper edge of the fixed plate 39. A first arc groove 42 and a second arc groove 44 are opened on the inner wall of the arc plate 40. The first arc groove 42 and the second arc groove 44 are connected by a third arc groove 43. An L-shaped rod 41 is connected to the bottom end of the through plate 37. One end of the L-shaped rod 41 is movably inserted into the first arc groove 42. During the rotation of the rotating column 28, one end of the L-shaped rod 41 is driven to slide from the first arc groove 42 and the third arc groove 43 to the second arc groove 44, pulling the through plate 37 down in the through groove 36. Through the rotation of the flipping shaft 34 via the gear 38, the intermediate column 6 is driven to flip and tilt downward. In this way, the die-cast finned tube slides off the intermediate column 6 for automatic feeding.

[0034] The implementation principle of a die-casting device for finned tube processing according to an embodiment of the present invention is as follows: The hydraulic cylinder 21 is activated to move the clamping mold 4 downwards and clamp it against the fixed mold 3. Then, raw material is introduced into the clamping mold 4 and the fixed mold 3 through the feed nozzle. During the material introduction process, the electric push rod 12 on the U-shaped plate 9 is activated to drive the moving block 13 to move back and forth in the through groove 11. When the moving block 13 drives the bottom end of the first insert rod 15 to move away from the electric push rod 12 in the first driving groove 18, the bottom end of the first insert rod 15 is used to move against the first driving groove 18. The compression of the groove wall pushes the drive plate 16 to move to the left, and through the intermittent rod 8, it drives the intermittent sleeve 7 to move within the fixed mold 3. When the moving block 13 drives the first insert rod 15 to move in the opposite direction, the bottom end of the first insert rod 15 compresses the groove wall of the second drive groove 19, continuing to push the drive plate 16 to move to the left. This allows the intermittent sleeve 7 to move intermittently within the fixed mold 3, thereby gradually expanding the space inside the fixed mold 3 for accommodating the raw material, making the raw material fill the fixed mold 3 more tightly, and reducing the problem of air bubbles inside the raw material. To improve the quality of die casting, after die casting, the hydraulic cylinder 21 is activated to move the bottom end of the lifting rod 22 away from the fixed mold 4. As the clamping mold 4 moves upward, the lifting sleeve 31 is moved upward to the upper inner wall of the sleeve 29 via the driving rod 32. As the clamping mold 4 continues to move upward, the lifting sleeve 31 moves the sleeve 29 and the rotating column 28 upward as a whole. When the fourth arc groove 27 on the rotating column 28 moves to the second insertion rod 25, as the rotating column 28 continues to move upward, one end of the second insertion rod 25 aligns with the fourth arc groove 27. The pressure from the wall pushes the rotating column 28 to rotate the side plate 5, thereby rotating the intermediate column 6 and the die-cast finned tube above the fixed mold 3. During the rotation, the rotating column 28 drives one end of the L-shaped rod 41 to slide from the first arc groove 42 and the third arc groove 43 to the second arc groove 44, pulling the through plate 37 down in the through groove 36. Through the gear 38, the rotating shaft 34 rotates, thereby driving the intermediate column 6 to flip and tilt downwards. In this way, the die-cast finned tube slides off the intermediate column 6 for automatic unloading, thus realizing the die-casting work.

[0035] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A die casting apparatus for finned tube processing, comprising a base plate (1), characterized in that: The bottom plate (1) is connected with two supporting plates (2) near the right side, two supporting plates (2) are fixedly installed with a fixed mold (3), the fixed mold (3) is provided with a pressing mold (4) through a lifting structure, one end of the fixed mold (3) is provided with a side disc (5) through a moving rotation structure, one side of the side disc (5) is connected with a middle column (6), the bottom plate (1) is provided with an intermittent rod (8) through an intermittent moving structure, one end of the intermittent rod (8) is inserted into the fixed mold (3) and is installed with an intermittent sleeve (7), the intermittent sleeve (7) is movably sleeved on the middle column (6), and one end of the fixed mold (3) is installed into a feeding nozzle; The intermittent moving structure comprises a horizontal groove (17) formed in the bottom plate (1), a sliding seat (45) is slidably arranged in the horizontal groove (17), a driving plate (16) is arranged on the sliding seat (45), one end of the intermittent rod (8) is connected to the driving plate (16), a plurality of first driving grooves (18) are equidistantly formed on the driving plate (16), and two adjacent first driving grooves (18) are communicated through a second driving groove (19). A U-shaped plate (9) is arranged on the driving plate (16), a through groove (11) is formed in the middle of the U-shaped plate (9), a fixed rod (10) is connected between the groove walls at the two ends of the through groove (11), a moving block (13) is movably sleeved on the fixed rod (10), the moving block (13) is slidably arranged in the through groove (11), an electric push rod (12) is installed on the upper side of one side of the U-shaped plate (9), one end of the output shaft of the electric push rod (12) is connected to the moving block (13), a pneumatic cylinder (14) is arranged on the moving block (13), a first inserting rod (15) is installed at the bottom end of the output shaft of the pneumatic cylinder (14), and the bottom end of the first inserting rod (15) is movably inserted into the first driving groove (18). The moving rotation structure comprises a supporting rod (23) connected to the bottom plate (1), one end of the supporting rod (23) is installed with a fixed ring (24), the fixed ring (24) movably penetrates a rotating column (28), one end of the rotating column (28) is connected with the side disc (5) through a turnover structure, a vertical groove (26) is formed in the rotating column (28), a fourth arc-shaped groove (27) is formed in the rotating column (28) and is communicated with the vertical groove (26), the fixed ring (24) fixedly penetrates a second inserting rod (25), one end of the second inserting rod (25) is movably inserted into the vertical groove (26), and the rotating column (28) is connected with the pressing mold (4) through a first driving structure.

2. The die casting apparatus for fin tube processing according to claim 1, characterized by: The lifting structure comprises a fixing frame (20) arranged on the bottom plate (1), a hydraulic cylinder (21) is installed at the lower side of the fixing frame (20), the output shaft of the hydraulic cylinder (21) is connected with a lifting rod (22), and the bottom end of the lifting rod (22) is connected with the pressing mold (4).

3. The die casting apparatus for fin tube processing according to claim 1, characterized by: Said first driving structure comprises a sleeve (29) rotatably sleeved on the rotating column (28), the sleeve (29) is in the shape of a Chinese character Gong, a lifting sleeve (31) is movably sleeved on the sleeve (29), a limiting strip (30) is arranged on the side surface of the sleeve (29), the limiting strip (30) movably penetrates through a limiting groove on the inner wall of the lifting sleeve (31), a driving rod (32) is connected on the side surface of the lifting sleeve (31), and one end of the driving rod (32) is connected to the fixed mold (3).

4. The die casting apparatus for fin tube processing according to claim 1, characterized by: Said overturning structure comprises a U-shaped seat (33) mounted at one end of the rotating column (28), a overturning shaft (34) rotatably penetrates through the U-shaped seat (33), a overturning plate (35) is fixedly sleeved on the overturning shaft (34) at both ends, one end of the overturning plate (35) is connected to the side disc (5), and a second driving structure is arranged between the overturning shaft (34) and the sleeve (29).

5. The die casting apparatus for fin tube processing according to claim 4, characterized by: Said second driving structure comprises a gear (38) sleeved on the middle of the overturning shaft (34), a through groove (36) is formed in the middle of the inner wall of the U-shaped seat (33), a through plate (37) is slidably penetrated in the through groove (36), a fixed disc (39) is fixedly sleeved on the bottom end of the sleeve (29), an arc-shaped plate (40) is connected on the edge of the upper surface of the fixed disc (39), a first arc-shaped groove (42) and a second arc-shaped groove (44) are formed in the inner wall of the arc-shaped plate (40), the first arc-shaped groove (42) and the second arc-shaped groove (44) are communicated through a third arc-shaped groove (43), the bottom end of the through plate (37) is connected with an L-shaped rod (41), and one end of the L-shaped rod (41) is movably inserted into the first arc-shaped groove (42).

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