Finned heat exchange tube hot extrusion forming device

Abstract

The present invention provides a hot extrusion forming device for finned heat exchange tubes, including an extrusion forming base, a fixing plate, a hydraulic push rod mechanism, a pushing block, a forming frame, a plugging hole, a sliding groove, a rotatable clamping and auxiliary frame structure, a pushable and pressure-applying forming block structure, a positionable, shielding and detachable seat structure, and a heat exchange tube body. A fixing plate is bolted and fixed at the middle position on the upper left side of the extrusion forming base; a hydraulic push rod mechanism is bolted and fixed on the upper left side of the fixing plate; a pushing block is arranged on the outer wall at the right end of the hydraulic push rod mechanism. The mutually cooperating settings of the first fixing frame, the inverted U-shaped frame, the lifting rod, the extrusion roller, the pushing spring, the power motor and the power roller in the present invention are beneficial to contacting the heat exchange tube body with the extrusion roller and the power roller respectively during the processing, and then driving the heat exchange tube body to rotate, which is convenient for assisting in improving the processing efficiency of the heat exchange tube body during the hot extrusion forming process.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchange tube forming equipment, and particularly relates to a hot extrusion forming device for finned heat exchange tubes. Background Art

[0002] As is well known, in the heat exchange field, in order to achieve the highest heat exchange efficiency, the current common technology is to process the outer shape of the heat exchange tube, set heat dissipation fins around it, and use the heat dissipation fins to increase the contact area between the heat exchange tube and the outside world, so as to improve the heat exchange efficiency. In the process of using the existing hot extrusion forming device for finned heat exchange tubes, since the heat exchange tubes are spliced, it is easy to affect the working efficiency of the heat exchange tubes, and the heat exchange tubes cannot rotate during the processing process, and cannot be replaced according to the specifications of the finned heat exchange tubes during the processing process. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a hot extrusion forming device for finned heat exchange tubes, which realizes one-piece forming work by heating and extruding the heat exchange tubes during the processing process, improves the working efficiency of the heat exchange tubes, rotates the heat exchange tubes during the processing process to improve the processing efficiency of the heat exchange tubes, and sets a replacement mechanism during the processing process to achieve the purpose of replacement according to the processing requirements of the finned heat exchange tubes.

[0004] The hot extrusion forming device for finned heat exchange tubes includes an extrusion forming seat. A fixing plate is bolted and fixed at the middle position on the left side of the upper end of the extrusion forming seat; a hydraulic push rod mechanism is bolted and fixed at the upper left part of the fixing plate; a push block is arranged on the outer wall of the right end of the hydraulic push rod mechanism; a forming frame is bolted and fixed at the upper right side of the extrusion forming seat; insertion holes are respectively formed at the middle positions on the left and right sides of the front surface of the forming frame; chutes are respectively formed at the upper and lower parts on the right side of the front surface of the forming frame. It is characterized in that a clamping and rotating auxiliary frame structure is fixed at the middle position of the upper end of the extrusion forming seat; a pushing and pressing forming block structure is arranged at the middle position inside the forming frame; a positioning, shielding and dismounting seat structure is arranged at the right end of the forming frame; a heat exchange tube body penetrates through the insertion holes.

[0005] Preferably, the clamping and rotating auxiliary frame structure includes a first fixing frame. Inverted U-shaped frames are respectively bolted and fixed at the middle positions on the left and right sides of the upper end of the first fixing frame; lifting rods slide through the inside of the inverted U-shaped frames; an extrusion roller is sleeved at the middle position of the outer wall of the lifting rods; pushing springs are respectively fixed at the left and right sides of the upper ends of the lifting rods; a power motor is bolted and fixed at the upper middle position on the left side of the first fixing frame; a power roller is bolted and fixed on the outer wall of the output shaft of the power motor.

[0006] Preferably, the pushable pressure-forming block structure includes a second fixing frame, and a forming die is fixed inside the bottom end of the second fixing frame provided at the upper end; a forming die is fixed inside the upper end of the second fixing frame provided at the lower end; tube grooves are horizontally formed in the upper and lower inner parts of the forming die respectively; fin grooves are sequentially formed in the interior of the forming die from left to right; a rotating rod is threadedly penetrated through the rear end of the second fixing frame.

[0007] Preferably, the positionable shielding and detachable seat structure includes a shielding seat, and a deep groove ball bearing is embedded in the middle position inside the right side of the shielding seat; a tightening block is inserted into the inner ring of the deep groove ball bearing; sliding rods are respectively and threadedly fixed to the upper left part and the lower left part of the shielding seat.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0009] 1. In the present invention, the settings of the second fixing frame, the forming die, the tube groove and the fin groove are beneficial to heating and extrusion forming the heat exchange tube body during the processing of the fin heat exchange tube, realizing one-piece forming work, and effectively improving the working efficiency of the heat exchange tube.

[0010] 2. In the present invention, the settings of the first fixing frame, the inverted U-shaped frame, the lifting rod, the extrusion roller, the pushing spring, the power motor and the power roller cooperating with each other are beneficial to contacting the heat exchange tube body by the extrusion roller and the power roller respectively during the processing, and then driving the heat exchange tube body to rotate, facilitating the improvement of the processing efficiency of the heat exchange tube body during the hot extrusion forming process.

[0011] 3. In the present invention, the settings of the second fixing frame, the forming die, the tube groove, the fin groove, the rotating rod and the forming frame are beneficial to fixing the forming die inside the second fixing frame during the processing, facilitating the disassembly and replacement of the forming die according to the processing requirements of the fin heat exchange tube during the processing, and being beneficial to the purpose of replacement according to the working requirements.

[0012] 4. In the present invention, the settings of the shielding seat, the deep groove ball bearing and the tightening block are beneficial to making the right end of the heat exchange tube body contact the left side of the tightening block during the hot extrusion forming process, facilitating the fixing of the heat exchange tube body during the hot extrusion process, and preventing the overall movement of the heat exchange tube body during the hot extrusion process from affecting the extrusion forming quality.

[0013] 5. In the present invention, the settings of the shielding seat, the deep groove ball bearing, the tightening block, the sliding rod, the forming frame and the chute are beneficial to pushing the shielding seat to move back and forth at the right end of the forming frame during the processing, facilitating the support of the heat exchange tube body during the hot extrusion process. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the clampable and rotatable auxiliary frame structure of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the pushable and pressure-forming block structure of the present invention.

[0017] Figure 4 It is a schematic structural diagram of the positionable, shielding and detachable seat structure of the present invention.

[0018] In the figure:

[0019] 1. Extrusion forming seat; 2. Fixed plate; 3. Hydraulic push rod mechanism; 4. Push block; 5. Forming frame; 6. Insertion hole; 7. Chute; 8. Clampable and rotatable auxiliary frame structure; 81. First fixing frame; 82. Inverted U-shaped frame; 83. Lifting rod; 84. Extrusion roller; 85. Push spring; 86. Power motor; 87. Power roller; 9. Pushable and pressure-forming block structure; 91. Second fixing frame; 92. Forming die; 93. Pipe groove; 94. Fin groove; 95. Rotating rod; 10. Positionable, shielding and detachable seat structure; 101. Shielding seat; 102. Deep groove ball bearing; 103. Tightening block; 104. Sliding rod; 11. Heat exchange tube body. Detailed implementation manners

[0020] The present invention will be specifically described below with reference to the accompanying drawings. As shown in the Figure 1 and the Figure 2As shown in the figure, the finned heat exchange tube hot extrusion forming device includes an extrusion forming seat 1, a fixing plate 2, a hydraulic push rod mechanism 3, a push block 4, a forming frame 5, a plug hole 6, a sliding groove 7, a clampable and rotatable auxiliary frame structure 8, a pushable and pressure-applying forming block structure 9, a positionable, shielding and detachable seat structure 10, and a heat exchange tube body 11. A fixing plate 2 is bolted and fixed at the middle position on the left side of the upper end of the extrusion forming seat 1; a hydraulic push rod mechanism 3 is bolted and fixed at the upper left part of the fixing plate 2; a push block 4 is arranged on the outer wall of the right end of the hydraulic push rod mechanism 3; a forming frame 5 is bolted and fixed at the upper right side of the extrusion forming seat 1; plug holes 6 are respectively formed at the middle positions on the left and right sides of the front surface of the forming frame 5; sliding grooves 7 are respectively formed at the upper and lower parts on the right side of the front surface of the forming frame 5; a clampable and rotatable auxiliary frame structure 8 is fixed at the middle position of the upper end of the extrusion forming seat 1; a pushable and pressure-applying forming block structure 9 is arranged at the middle position inside the forming frame 5; a positionable, shielding and detachable seat structure 10 is arranged at the right end of the forming frame 5; a heat exchange tube body 11 passes through the inside of the plug hole 6; the clampable and rotatable auxiliary frame structure 8 includes a first fixing frame 81, an inverted U-shaped frame 82, a lifting rod 83, an extrusion roller 84, a push spring 85, a power motor 86, and a power roller 87. In the middle positions on the left and right sides of the upper end of the first fixing frame 81, inverted U-shaped frames 82 are respectively bolted and fixed; a lifting rod 83 slidably passes through the inside of the inverted U-shaped frame 82; an extrusion roller 84 is sleeved at the middle position of the outer wall of the lifting rod 83; push springs 85 are respectively fixed on the left and right sides of the upper end of the lifting rod 83; a power motor 86 is bolted and fixed at the middle position on the upper left part of the first fixing frame 81; a power roller 87 is bolted and fixed on the outer wall of the output shaft of the power motor 86. When processing the finned heat exchange tube, place the selected heat exchange tube body 11 at a suitable position and make the heat exchange tube body 11 pass through between the extrusion roller 84 and the power roller 87. During the extrusion forming process, make the power motor 86 drive the power roller 87 to rotate, and then the power roller 87 contacts the heat exchange tube body 11, which is convenient for rotating the heat exchange tube body 11 during the extrusion forming process and improving the extrusion forming efficiency of the heat exchange tube body 11.

[0021] In this implementation plan, in combination with the attached Figure 3As shown in the figure, the pushable pressure-forming block structure 9 includes a second fixing frame 91, a forming die 92, a pipe groove 93, a fin groove 94, and a rotating rod 95. The forming die 92 is fixed inside the bottom end of the second fixing frame 91 provided at the upper end; the forming die 92 is fixed inside the upper end of the second fixing frame 91 provided at the lower end; the pipe grooves 93 are respectively horizontally opened inside the upper and lower ends of the forming die 92; the fin grooves 94 are successively opened inside the forming die 92 from left to right; the rotating rod 95 is threadedly penetrated through the rear end of the second fixing frame 91; during the extrusion forming process, the right end of the heat exchange tube body 11 penetrates through the inside of the pipe groove 93, and the infrared heating mechanism provided inside the second fixing frame 91 heats the forming die 92, and at the same time heats the heat exchange tube body 11 penetrating through the pipe groove 93, heats the heat exchange tube body 11 to a suitable temperature, and then the hydraulic push rod mechanism 3 starts to work, pushes the push block 4 to move to the right, pushes the right end of the heat exchange tube body 11, and makes the heat exchange tube body 11 be extruded and formed to the right. Through the connection of the pipe groove 93 and the fin groove 94, the heat exchange tube body 11 forms a fin heat exchange tube during the extrusion process.

[0022] In this implementation scheme, in combination with the attached Figure 4 As shown in the figure, the positionable shielding and detachable seat structure 10 includes a shielding seat 101, a deep groove ball bearing 102, a top block 103, and a sliding rod 104. The deep groove ball bearing 102 is embedded in the middle position inside the right side of the shielding seat 101; the inner ring of the deep groove ball bearing 102 is inserted with the top block 103; the sliding rods 104 are respectively threadedly fixed to the upper left part and the lower left part of the shielding seat 101; during the extrusion forming process, the right end of the heat exchange tube body 11 contacts the middle position on the left side of the top block 103, and then supports the heat exchange tube body 11 to prevent the overall movement of the heat exchange tube body 11 during the extrusion process from affecting the extrusion forming efficiency and being unable to guarantee the processing quality of the heat exchange tube body 11, thereby completing the hot extrusion forming work of the fin heat exchange tube.

[0023] In this implementation scheme, specifically, a bearing is provided between the right end of the hydraulic push rod mechanism 3 and the middle position inside the left side of the push block 4; there are two plug holes 6 and they are correspondingly arranged.

[0024] In this implementation scheme, specifically, the upper ends of the push springs 85 are respectively fixed to the middle position at the top end inside the inverted U-shaped frame 82; the output shaft of the power motor 86 penetrates through the upper left part of the first fixing frame 81; the power roller 87 is arranged at the middle position inside the upper end of the first fixing frame 81; the extrusion roller 84 is arranged between the inverted U-shaped frames 82.

[0025] In this implementation, specifically, the first fixing frame 81 is bolted to the middle position on the left side of the upper end of the extrusion forming seat 1, and the first fixing frame 81 is arranged on the left side of the forming frame 5; the heat exchange tube body 11 passes through between the extrusion roller 84 and the power roller 87 and is in contact with them.

[0026] In this implementation, specifically, positive threaded holes are respectively formed on the left and right sides of the rear end of the second fixing frame 91 arranged above; reverse threaded holes are respectively arranged on the left and right sides of the rear end of the second fixing frame 91 arranged below; the tube groove 93 and the fin groove 94 are communicated; infrared heating mechanisms are respectively fixed inside the second fixing frame 91.

[0027] In this implementation, specifically, the rotating rod 95 is a T-shaped threaded rod and respectively passes through the inner parts on the left and right sides of the rear end of the forming frame 5; the heat exchange tube body 11 horizontally passes through the inside of the tube groove 93.

[0028] In this implementation, specifically, the pressing block 103 is an inclined T-shaped block and has anti-slip lines on the left side; the inner ring of the deep groove ball bearing 102 and the outer wall of the right end of the pressing block 103 are in interference fit.

[0029] In this implementation, specifically, the shielding seat 101 is installed at the right end of the forming frame 5 through the sliding rod 104; the sliding rod 104 is respectively slidably inserted into the inside of the sliding groove 7.

[0030] Working principle

[0031] In the present invention, when processing the finned heat exchange tube, the selected heat exchange tube body 11 is placed at a suitable position, and the heat exchange tube body 11 is passed through between the extrusion roller 84 and the power roller 87. During the extrusion molding process, the power motor 86 drives the power roller 87 to rotate, and then the power roller 87 contacts the heat exchange tube body 11, facilitating the rotation of the heat exchange tube body 11 during the extrusion molding process, improving the extrusion molding efficiency of the heat exchange tube body 11. When performing extrusion molding, the right end of the heat exchange tube body 11 passes through the inside of the tube groove 93, and the infrared heating mechanism provided inside the second fixing frame 91 heats the molding die 92, and at the same time heats the heat exchange tube body 11 passing through the tube groove 93, heating the heat exchange tube body 11 to a suitable temperature. Then, the hydraulic push rod mechanism 3 starts to work, pushing the push block 4 to move to the right, pushing the right end of the heat exchange tube body 11, and making the heat exchange tube body 11 be extruded and formed to the right. Through the connection between the tube groove 93 and the fin groove 94, the heat exchange tube body 11 forms a finned heat exchange tube during the extrusion process. During the extrusion molding process, the right end of the heat exchange tube body 11 contacts the middle position on the left side of the top block 103, and then supports the heat exchange tube body 11, preventing the overall movement of the heat exchange tube body 11 during the extrusion process from affecting the extrusion molding efficiency and unable to ensure the processing quality of the heat exchange tube body 11, thereby completing the hot extrusion molding work of the finned heat exchange tube.

[0032] Any technical solution using the technical solution of the present invention, or designed by those skilled in the art inspired by the technical solution of the present invention to achieve the above technical effects, shall fall within the protection scope of the present invention.

Claims

1. Finned heat exchange tube hot extrusion forming device, comprising an extrusion forming seat (1), wherein a fixing plate (2) is bolted and fixed at the middle position on the left side of the upper end of the extrusion forming seat (1); a hydraulic push rod mechanism (3) is bolted and fixed at the upper left part of the fixing plate (2); a push block (4) is arranged on the outer wall of the right end of the hydraulic push rod mechanism (3); a forming frame (5) is bolted and fixed at the upper right side of the extrusion forming seat (1); plug holes (6) are respectively formed at the middle positions on the left and right sides of the front surface of the forming frame (5); chutes (7) are respectively formed at the upper and lower parts on the right side of the front surface of the forming frame (5); characterized in that, In the finned heat exchange tube hot extrusion forming device, a clampable and rotatable auxiliary frame structure (8) is fixed at the middle position of the upper end of the extrusion forming seat (1); a pushable and pressure-applying forming block structure (9) is arranged at the middle position inside the forming frame (5); a positioning, shielding and dismounting seat structure (10) is arranged at the right end of the forming frame (5); a heat exchange tube body (11) passes through the inside of the insertion hole (6); the clampable and rotatable auxiliary frame structure (8) includes a first fixed frame (81), and inverted U-shaped frames (82) are respectively bolt-fixed at the middle positions on the left and right sides of the upper end of the first fixed frame (81); a lifting rod (83) slidably passes through the inside of the inverted U-shaped frame (82); an extrusion roller (84) is sleeved at the middle position of the outer wall of the lifting rod (83); push springs (85) are respectively fixed at the left and right sides of the upper end of the lifting rod (83); a power motor (86) is bolt-fixed at the middle position of the upper part on the left side of the first fixed frame (81); a power roller (87) is bolt-fixed on the outer wall of the output shaft of the power motor (86); the pushable and pressure-applying forming block structure (9) includes a second fixed frame (91), a forming die (92) is fixed inside the bottom end of the second fixed frame (91) arranged at the upper end; a forming die (92) is fixed inside the upper end of the second fixed frame (91) arranged at the lower end; tube grooves (93) are respectively horizontally opened inside the upper and lower ends of the forming die (92); fin grooves (94) are sequentially opened inside the forming die (92) from left to right; a rotating rod (95) threadedly passes through the inside of the left and right sides of the rear end of the forming frame (5); the positioning, shielding and dismounting seat structure (10) includes a shielding seat (101), a deep groove ball bearing (102) is embedded at the middle position inside the right side of the shielding seat (101); a tightening block (103) is inserted into the inner ring of the deep groove ball bearing (102); sliding rods (104) are respectively thread-fixed at the upper and lower parts on the left side of the shielding seat (101).

2. The finned heat exchange tube hot extrusion forming device according to claim 1, wherein The first fixed frame (81) is bolt-fixed at the middle position on the left side of the upper end of the extrusion forming seat (1), and the first fixed frame (81) is arranged on the left side of the forming frame (5); the heat exchange tube body (11) passes through between the extrusion roller (84) and the power roller (87) and is in contact therewith.

3. The finned heat exchange tube hot extrusion forming device according to claim 1, characterized in that, The rotating rod (95) is a T-shaped threaded rod and respectively passes through the inside of the left and right sides of the rear end of the forming frame (5); the heat exchange tube body (11) horizontally passes through the inside of the tube groove (93).

4. The finned heat exchange tube hot extrusion forming device according to claim 1, characterized in that The shielding seat (101) is installed at the right end of the forming frame (5) through the sliding rod (104); the sliding rods (104) are respectively slidably inserted into the inside of the chute (7).

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