Copper pipe forming machine

Abstract

The invention discloses a copper pipe forming machine, and belongs to the technical field of copper pipe machining, the copper pipe forming machine comprises a machine body, a guide part is arranged on the upper side of the machine body, the guide part comprises a fixed seat fixedly connected to the upper side of the machine body, a sliding groove is formed in the left side of the fixed seat, a sliding block is slidably connected in the sliding groove, and the upper side and the lower side in the sliding groove are jointly and fixedly connected with a limiting rod; the copper pipe in the moving process is supported and guided through the arranged positioning sleeve, copper cuttings, iron powder and other sundries on the outer side of the copper pipe can be primarily treated through the movable groove located in the positioning sleeve, and in the process that the copper pipe is coiled through the machine body, the positioning sleeve arranged on the outer side of the copper pipe in a sleeving mode supports the copper pipe all the time, so that the copper pipe is prevented from being damaged. After the movable sleeve is sleeved on the outer side of the copper pipe, obvious impurities existing on the outer side of the copper pipe can be effectively removed, bonded copper on a core head, die dropped slag and powder are prevented from being pressed into the surface of the pipe when the pipe is coiled, and further scratches or indentations on the surface of the copper pipe are reduced.

Description

Technical Field

[0001] This invention relates to the field of copper tube processing, and more specifically, to a copper tube forming machine. Background Technology

[0002] A copper tube forming machine is a specialized piece of machinery used to process copper tubes into specific shapes. It is widely used in pipe manufacturing for industries such as air conditioning, refrigeration, heat exchangers, solar energy, automobiles, and aerospace. The copper tube forming machine uses mechanical force (such as hydraulic, pneumatic, or mechanical transmission) to apply plastic deformation to the copper tube, thereby forming the desired shape. Common forming methods include necking, flaring, sealing, chamfering, flattening, flanging, knurling, flattening, bending, and coiling. Depending on the processing requirements, the copper tube forming machine can employ processes such as cold heading, cold spinning, or spinning.

[0003] Pipe end forming machines are mainly used to process the ends of copper pipes into various shapes, such as flared, constricted, expanded, and chamfered ends. These shapes are crucial in pipe connections in fields such as air conditioning, water heaters, automobiles, and aerospace. Pipe bending machines bend copper pipes into the required angles and shapes to meet the needs of different pipe layouts. Flattening machines, twisting machines, extrusion machines, and other equipment can meet the special processing needs of copper pipes in different application scenarios, such as flattening copper pipes, twisting them into specific shapes, or forming complex cross-sectional shapes through extrusion processes.

[0004] In the prior art, when copper tubes are coiled, copper adhering to the core, mold slag, and powder will be pressed into the surface of the tube during coiling. This will cause scratches or indentations on the surface of the copper tube. The indentations caused by copper shavings, iron powder, and other impurities will become nucleation points for cracks during the drawing process, leading to the initiation and propagation of cracks. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a copper tube forming machine.

[0006] To solve the above problems, the present invention adopts the following technical solution, which can realize that the positioning sleeve removes obvious impurities on the outside of the copper tube during the coiling process, and avoids copper sticking on the core, mold slag and powder being pressed into the surface of the tube during coiling, thereby reducing scratches or indentations on the surface of the copper tube.

[0007] A copper tube forming machine includes a machine body, and a guide component is provided on the upper side of the machine body. The guide component includes a fixed seat fixedly connected to the upper side of the machine body.

[0008] The left side of the fixed base is provided with a sliding groove, and a slider is slidably connected inside the sliding groove. The upper and lower sides of the sliding groove are fixedly connected with a limit rod. The slider is slidably sleeved on the outside of the limit rod. The upper and lower sides of the slider are fixedly connected with pressure springs. The ends of the upper and lower pressure springs that are far apart are respectively fixedly connected to the upper and lower sides inside the sliding groove. The left side of the slider is fixedly connected with a positioning sleeve, and a movable sleeve is slidably connected inside the positioning sleeve.

[0009] Furthermore, the shape of the slider is adapted to the shape of the groove, the inner diameter of the positioning sleeve is smaller than the inner diameter of the movable sleeve, and the right side of the positioning sleeve slides and presses against the left side of the fixed seat.

[0010] Furthermore, the positioning sleeve is provided with a removal component inside, the removal component including a movable groove formed in the inner sidewall of the positioning sleeve.

[0011] Furthermore, the movable sleeve is slidably connected inside the movable groove, and an extension frame is fixedly connected to the front end of the movable sleeve. Connecting rods are fixedly connected to the front side of the extension frame in a circular array. An extension strip is fixedly connected to the front end of the connecting rods, and a rubber ring is fitted on the outer side of multiple connecting rods.

[0012] Furthermore, the expansion frame is funnel-shaped, the rubber ring is located between the expansion frame and the extension strip, and the extension strip is inclined.

[0013] Furthermore, the inner and outer sides of the positioning sleeve are provided with a lubrication assembly, which includes a storage box fixedly connected to the upper side of the fixed base.

[0014] Furthermore, a first conduit is fixedly connected to the left side of the storage box, the right end of the first conduit extends into the interior of the storage box, a pump body is fixedly connected to the right end of the first conduit, the pump body is located inside the storage box, the other end of the first conduit extends into the interior of the movable slot, the other end of the first conduit is above the expansion frame, a waterproof limit switch is fixedly connected to the left side of the inner wall of the movable slot, and the outer surface of the movable sleeve slides and presses against the outer surface of the waterproof limit switch.

[0015] Furthermore, a groove is provided through the lower side of the inner wall of the movable groove, and a connecting pipe is fixedly connected inside the groove. A collection box is fixedly connected to the lower side of the connecting pipe, and the movable groove is connected to the collection box through the connecting pipe.

[0016] Furthermore, a recycling component is provided on the upper side of the machine body, the recycling component including a filter screen fixedly connected inside the collection box.

[0017] Furthermore, a second conduit is fixedly connected to the bottom of the collection box, and a guide groove is provided on the upper side of the machine body. The collection box is connected to the guide groove through the second conduit. The left side of the guide groove extends to the rotating shaft of the machine body. The guide groove is "V" shaped, and the turning point of the guide groove is located at the center of the rotating shaft on the upper side of the machine body.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The present invention supports and guides the copper tube during the movement by setting a positioning sleeve, while the movable groove inside the positioning sleeve can perform preliminary treatment on the copper shavings, iron powder and other impurities on the outside of the copper tube. Since the positioning sleeve on the outside of the copper tube always supports the copper tube during the process of the copper tube being coiled by the machine body, the movable sleeve can effectively remove obvious impurities on the outside of the copper tube after being placed on the outside of the copper tube, and avoid the copper sticking on the core, mold slag and powder being pressed into the surface of the tube when the tube is coiled, thereby reducing scratches or indentations on the surface of the copper tube.

[0020] (2) The present invention provides a rubber ring that is always fitted on the outside of the copper tube after expansion, so that the rubber ring can further process the copper shavings, iron powder and other impurities on the outside of the copper tube. As the copper tube passes through the movable sleeve, the expansion frame and the rubber ring are always tightly fitted on the outside of the copper tube, so that the copper tube can be further removed with the help of the rubber ring during the movement, thereby further reducing the scratches or indentations on the surface of the copper tube caused by impurities during the processing.

[0021] (3) The present invention uses a groove to collect the lubricant and its internal impurities after the lubricant washes the surface of the copper tube. As the copper tube passes through the movable sleeve, the lubricant inside the storage box will be sent into the movable groove through the first conduit, so that the lubricant can lubricate the copper tube during the movement. The flowing lubricant can also carry the impurities removed from the surface of the copper tube into the collection box, thus avoiding scratches or indentations on the surface of the copper tube during the processing due to impurities. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the positioning sleeve of the present invention;

[0025] Figure 4 This is a cross-sectional structural diagram of the storage box of the present invention;

[0026] Figure 5This is a cross-sectional view of the positioning sleeve of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of point A;

[0028] Figure 7 This is a cross-sectional view of the collection box of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the expansion frame of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Body; 2. Guiding component; 21. Fixed base; 22. Slide groove; 23. Slider; 24. Limiting rod; 25. Pressure spring; 26. Positioning sleeve; 27. Movable sleeve; 28. Removal component; 281. Movable groove; 282. Extension frame; 283. Connecting rod; 284. Extension strip; 285. Rubber ring; 29. ​​Lubrication component; 291. Storage box; 292. First conduit; 293. Pump body; 294. Waterproof limit switch; 295. Groove; 296. Connecting pipe; 297. Collection box; 3. Recycling component; 31. Filter screen; 32. Second conduit; 33. Guide groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 A copper tube forming machine includes a machine body 1, and a guide component 2 is provided on the upper side of the machine body 1. The guide component 2 includes a fixed seat 21 fixedly connected to the upper side of the machine body 1.

[0034] A slide groove 22 is provided on the left side of the fixed base 21. A slider 23 is slidably connected inside the slide groove 22. A limit rod 24 is fixedly connected to both the upper and lower sides inside the slide groove 22. The slider 23 is slidably sleeved on the outside of the limit rod 24. A pressure spring 25 is fixedly connected to both the upper and lower sides of the slider 23. The ends of the upper and lower pressure springs 25 that are far apart are fixedly connected to the upper and lower sides inside the slide groove 22, respectively. A positioning sleeve 26 is fixedly connected to the left side of the slider 23. A movable sleeve 27 is slidably connected inside the positioning sleeve 26.

[0035] The shape of the slider 23 is adapted to the shape of the groove 22. The inner diameter of the positioning sleeve 26 is smaller than the inner diameter of the movable sleeve 27. The right side of the positioning sleeve 26 slides and presses against the left side of the fixed seat 21.

[0036] By adopting the above technical solution, when the machine body 1 coils the copper tube, one end of the copper tube can be inserted into the interior of the positioning sleeve 26, allowing the copper tube to pass through the movable sleeve 27. The copper tube is then connected to the machine body 1. As the machine body 1 processes the copper tube, the pressure generated by the moving copper tube is applied to the positioning sleeve 26. At this time, the slider 23 fixed on the right side of the positioning sleeve 26 will slide within the groove 22 on the left side of the fixed base 21. The limiting rod 24 inside the groove 22 will restrict the slider 23 to reduce the slider 23 from tipping over. Simultaneously, when the positioning sleeve 26 fluctuates up and down, the pressure springs 25 on both sides of the slider 23 will simultaneously support the slider 23 using their own elasticity. When the height of the copper tube changes, the height of the movable sleeve 27 also changes, and it always supports and guides the copper tube. At the same time, the movable sleeve 27 inside the positioning sleeve 26 is always outside the copper tube and fits with it. When the copper tube slides inside the movable sleeve 27, impurities on the outside of the copper tube will not be able to enter the movable sleeve 27. Since the positioning sleeve 26 on the outside of the copper tube always supports the copper tube during the coiling process of the copper tube through the machine body 1, the movable sleeve 27 can effectively remove obvious impurities on the outside of the copper tube after it is on the outside of the copper tube. This prevents copper sticking on the core, mold slag and powder from being pressed into the surface of the tube during coiling, thereby reducing scratches or indentations on the surface of the copper tube.

[0037] like Figures 5 to 8 As shown, the positioning sleeve 26 has a removal component 28 inside, which includes a movable groove 281 formed in the inner sidewall of the positioning sleeve 26.

[0038] The movable sleeve 27 is slidably connected inside the movable groove 281. An extension frame 282 is fixedly connected to the front end of the movable sleeve 27. Connecting rods 283 are fixedly connected to the front side of the extension frame 282 in a circular array. An extension strip 284 is fixedly connected to the front end of the connecting rods 283. A rubber ring 285 is fitted on the outer side of multiple connecting rods 283.

[0039] The expansion frame 282 is flared, and the rubber ring 285 is located between the expansion frame 282 and the extension strip 284, which is inclined.

[0040] By adopting the above technical solution, when the copper tube passes through the movable sleeve 27, it will compress the expansion frame 282, causing the expansion frame 282 to gradually expand and always remain in contact with the outside of the copper tube. After the expansion frame 282 expands, it will drive the extension strips 284 to move through the connecting rod 283. At this time, multiple parallel extension strips 284 will expand along with the connecting rod 283. As the copper tube continues to move, multiple connecting rods 283 will push the rubber ring 285, causing the rubber ring 285 to expand and fit over the outside of the copper tube. During the movement of the copper tube, the rubber ring 285 will slide on the outside of the copper tube, causing the outside of the copper tube to become loose. The material is pushed by the rubber ring 285, which in turn causes copper shavings, iron powder and other impurities peeled off from the outside of the copper tube to enter the interior of the expansion frame 282. After the expansion frame 282 expands, the impurities will enter the interior of the movable groove 281 through the gaps in the expansion frame 282. As the copper tube passes through the movable sleeve 27, the expanding expansion frame 282 and the rubber ring 285 are always tightly attached to the outside of the copper tube, so that the copper tube can be further removed with the help of the rubber ring 285 during the movement, which further reduces the scratches or indentations on the surface of the copper tube caused by impurities during the processing.

[0041] like Figures 2 to 7 As shown, the inner and outer sides of the positioning sleeve 26 are provided with a lubrication assembly 29, which includes a storage box 291 fixedly connected to the upper side of the fixed base 21.

[0042] A first conduit 292 is fixedly connected to the left side of the storage box 291. The right end of the first conduit 292 extends into the interior of the storage box 291. A pump body 293 is fixedly connected to the right end of the first conduit 292. The pump body 293 is located inside the storage box 291. The other end of the first conduit 292 extends into the interior of the movable slot 281. The other end of the first conduit 292 is located above the expansion frame 282. A waterproof limit switch 294 is fixedly connected to the left side of the inner wall of the movable slot 281. The outer surface of the movable sleeve 27 slides and presses against the outer surface of the waterproof limit switch 294.

[0043] A groove 295 is provided through the lower side of the inner wall of the movable groove 281. A connecting pipe 296 is fixedly connected inside the groove 295. A collection box 297 is fixedly connected to the lower side of the connecting pipe 296. The movable groove 281 is connected to the collection box 297 through the connecting pipe 296.

[0044] By adopting the above technical solution, when the movable sleeve 27 is displaced and moves away from the waterproof limit switch 294 under the friction of the copper tube, the waterproof limit switch 294 sends an electrical signal to control the pump body 293 to start, causing the pump body 293 to extract the lubricant from the storage tank 291 and send it into the movable slot 281 through the first conduit 292. The bottom end of the first conduit 292 is above the movable sleeve 27. When the expansion frame 282 and the extension bar 284 expand, the lubricant will reach the surface of the copper tube and flow out through the gap after the expansion of the expansion frame 282 and the extension bar 284, carrying impurities to the movable slot 281. In the groove 295 on the lower side inside the moving groove 281, during this process, because the collection box 297 is connected to the groove 295 through the connecting pipe 296, the lubricant and impurities are collected by the collection box 297. As the copper pipe passes through the movable sleeve 27, the lubricant inside the storage box 291 will be sent into the moving groove 281 through the first conduit 292, so that the lubricant can lubricate the copper pipe during the movement. The flowing lubricant can also carry the impurities removed from the surface of the copper pipe into the interior of the collection box 297, thus preventing the copper pipe from being scratched or dented during the processing due to impurities.

[0045] like Figures 2 to 5 and Figure 7 As shown, a recycling component 3 is provided on the upper side of the body 1. The recycling component 3 includes a filter screen 31 that is fixedly connected inside the collection box 297.

[0046] The bottom of the collection box 297 is fixedly connected to the second conduit 32. The upper side of the body 1 is provided with a guide groove 33. The collection box 297 is connected to the guide groove 33 through the second conduit 32. The left side of the guide groove 33 extends to the pivot of the body 1. The guide groove 33 is V-shaped. The turning point of the guide groove 33 is located at the center of the upper pivot of the body 1.

[0047] By adopting the above technical solution, during the process of lubricant entering the collection box 297, the filter screen 31 inside the collection box 297 will filter the lubricant inside the collection box 297. At this time, the lubricant will pass through the filter screen 31, while copper shavings, iron powder and other impurities inside the lubricant will remain above the filter screen 31. The lubricant that passes through the filter screen 31 will enter the second conduit 32 on the lower side of the collection box 297, and then be sent into the guide groove 33 through the second conduit 32. As the amount of lubricant inside the guide groove 33 increases, the lubricant inside the guide groove 33 will gradually flow towards the shaft of the machine body 1, and after lubricating the shaft of the machine body 1, it will be discharged through the other side.

[0048] It should be noted that the collection box 297 is suspended below the positioning sleeve via the connecting pipe 296, and the liquid outlet at the bottom of the collection box 297 is vertically higher than the guide groove 33 on the upper side of the machine body 1. Thus, the lubricant filtered by the filter screen 31 can automatically flow into the guide groove 33 through the second conduit 32 under the action of gravity, thereby lubricating the rotating shaft of the machine body without the need for an additional power device. Since the lubricant entering the collection box 297 can be filtered by the filter screen 31 to remove impurities such as copper shavings and iron powder, the filtered lubricant will pass through the rotating shaft of the machine body 1 before being discharged from the machine body 1, so that the lubricant can be reused after being filtered by the filter screen 31 after lubricating the copper pipe.

[0049] Working principle: When the machine body 1 coils the copper tube, one end of the copper tube can be inserted into the positioning sleeve 26, allowing the copper tube to pass through the movable sleeve 27. The pressure generated by the copper tube during the movement is applied to the positioning sleeve 26. At this time, the slider 23 fixed on the right side of the positioning sleeve 26 will slide in the groove 22 on the left side of the fixed seat 21, and be buffered by the pressure spring 25. When the copper tube slides inside the movable sleeve 27, impurities on the outside of the copper tube will not be able to enter the movable sleeve 27. After the copper tube passes through the movable sleeve 27, it will squeeze the expansion frame 282, causing the expansion frame 282 to gradually expand. After the expansion frame 282 expands, it will drive the extension strip 284 to expand through the connecting rod 283. At this time, the rubber ring 285 expands and fits on the outside of the copper tube. Copper shavings, iron powder and other impurities stripped from the copper tube enter the interior of the expansion frame 282. When the movable sleeve 27 is displaced by the friction of the copper tube and moves away from the waterproof limit switch 294, the waterproof limit switch 294 will emit a signal. The pump body 293 is started by an electrical signal. The pump body 293 draws out the lubricant from the storage tank 291 and sends it into the movable slot 281 through the first conduit 292. The bottom end of the first conduit 292 is above the movable sleeve 27. When the expansion frame 282 and the extension bar 284 expand, the lubricant will reach the surface of the copper tube. As it flows out through the gap after the expansion frame 282 and the extension bar 284 expands, it carries impurities to the groove 295 on the lower side of the movable slot 281. During this process, because the collection tank 297 is connected to the groove 295 through the connecting pipe 296, the lubricant and impurities are collected by the collection tank 297. The filter screen 31 inside the collection tank 297 will filter the lubricant inside the collection tank 297. Then, it is sent into the guide groove 33 through the second conduit 32. The lubricant inside the guide groove 33 will gradually flow to the shaft of the machine body 1 and, after lubricating the shaft of the machine body 1, it will be discharged through the other side.

[0050] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A copper tube forming machine, comprising a machine body (1), characterized in that: The upper side of the body (1) is provided with a guide component (2), which includes a fixed seat (21) fixedly connected to the upper side of the body (1). The fixed base (21) has a sliding groove (22) on its left side. A slider (23) is slidably connected inside the sliding groove (22). A limit rod (24) is fixedly connected to the upper and lower sides inside the sliding groove (22). The slider (23) is slidably sleeved on the outside of the limit rod (24). A pressure spring (25) is fixedly connected to the upper and lower sides of the slider (23). The ends of the upper and lower pressure springs (25) that are far apart are fixedly connected to the upper and lower sides inside the sliding groove (22). A positioning sleeve (26) is fixedly connected to the left side of the slider (23). A movable sleeve (27) is slidably connected inside the positioning sleeve (26).

2. The copper tube forming machine according to claim 1, characterized in that: The shape of the slider (23) is adapted to the shape of the groove (22), the inner diameter of the positioning sleeve (26) is smaller than the inner diameter of the movable sleeve (27), and the right side of the positioning sleeve (26) slides and presses against the left side of the fixed seat (21).

3. The copper tube forming machine according to claim 1, characterized in that: The positioning sleeve (26) is provided with a removal component (28) inside, and the removal component (28) includes a movable groove (281) formed in the inner side wall of the positioning sleeve (26).

4. A copper tube forming machine according to claim 3, characterized in that: The movable sleeve (27) is slidably connected inside the movable groove (281). An extension frame (282) is fixedly connected to the front end of the movable sleeve (27). A connecting rod (283) is fixedly connected to the front side of the extension frame (282) in a circular array. An extension strip (284) is fixedly connected to the front end of the connecting rod (283). A rubber ring (285) is fitted on the outer side of multiple connecting rods (283).

5. A copper tube forming machine according to claim 4, characterized in that: The expansion frame (282) is flared, and the rubber ring (285) is located between the expansion frame (282) and the extension strip (284), which is inclined.

6. A copper tube forming machine according to claim 5, characterized in that: The positioning sleeve (26) is provided with a lubrication assembly (29) on both the inner and outer sides. The lubrication assembly (29) includes a storage box (291) fixedly connected to the upper side of the fixed base (21).

7. A copper tube forming machine according to claim 6, characterized in that: A first conduit (292) is fixedly connected to the left side of the storage box (291). The right end of the first conduit (292) extends into the interior of the storage box (291). A pump body (293) is fixedly connected to the right end of the first conduit (292). The pump body (293) is located inside the storage box (291). The other end of the first conduit (292) extends into the interior of the movable slot (281). The other end of the first conduit (292) is located above the expansion frame (282). A waterproof limit switch (294) is fixedly connected to the left side of the inner wall of the movable slot (281). The outer surface of the movable sleeve (27) slides and presses against the outer surface of the waterproof limit switch (294).

8. A copper tube forming machine according to claim 7, characterized in that: The lower side of the inner wall of the movable groove (281) is provided with a groove (295), and a connecting pipe (296) is fixedly connected inside the groove (295). A collection box (297) is fixedly connected to the lower side of the connecting pipe (296). The movable groove (281) is connected to the collection box (297) through the connecting pipe (296).

9. A copper tube forming machine according to claim 8, characterized in that: The upper side of the body (1) is provided with a recycling component (3), which includes a filter screen (31) fixedly connected inside the collection box (297).

10. A copper tube forming machine according to claim 9, characterized in that: The bottom end of the collection box (297) is fixedly connected to a second conduit (32). A guide groove (33) is provided on the upper side of the body (1). The collection box (297) is connected to the guide groove (33) through the second conduit (32). The left side of the guide groove (33) extends to the pivot of the body (1). The guide groove (33) is V-shaped. The turning point of the guide groove (33) is located at the center of the pivot on the upper side of the body (1).

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