A pre-flattening device for a mobile phone heat dissipation copper tube and its flattening method

Abstract

The present invention discloses a pre-flattening device for a mobile phone heat dissipation copper tube and a flattening method thereof, which relates to the field of metal pipe processing. It includes a fixed forming block, and a support frame for elevating the fixed forming block is fixedly arranged at the bottom of the fixed forming block. The fixed forming block is rectangular, and optical axes are fixedly arranged at four corners of the upper surface of the fixed forming block. The tops of a plurality of optical axes are commonly fixedly provided with a top plate. Through the supporting and limiting unit, the present invention can perform multi-point negative pressure limitation on the copper tube placed in the forming groove, thereby avoiding random deviation of the angle at the bending part of the copper tube during the flattening process, which affects the production accuracy of the flat copper tube. Moreover, during the flattening process, the surface cleaning unit is triggered by the driving unit to remove the particulate matters attached to the inner surface of the forming groove, the extrusion block and the outer surface of the copper tube, so as to avoid the appearance of multiple pits with different sizes on the surface of the copper tube during the flattening process.

Description

Technical Field

[0001] The present invention relates to the field of metal pipe processing, and specifically to a pre-flattening device for a mobile phone heat dissipation copper pipe and a flattening method thereof. Background Art

[0002] The heat dissipation copper pipe is a commonly used heat dissipation component in mechanical equipment, especially in high-performance mobile phones and computers, playing a major heat dissipation role. When assembling the heat dissipation copper pipe in a mobile phone or computer, the internal installation space needs to be considered. Usually, the heat dissipation copper pipe needs to be processed into a flat shape to maximize the use of the internal installation space of the mobile phone or computer.

[0003] In the existing Chinese published literature (CN214866591U), a pre-flattening device for processing a mobile phone heat dissipation copper pipe is described. By setting a bending device, it solves the problem that when the copper pipe is bent, due to the lack of good protection of the bending equipment, the stress point of the copper pipe may be damaged, which affects the subsequent flattening operation of the copper pipe. Once damaged, the entire copper pipe may need to be discarded, resulting in waste of raw materials. Then, through the flattening device, the copper pipe is flattened by the pressing plate through the "U"-shaped groove and the shape groove at the bottom, thus realizing the operation of immediately flattening the copper pipe after bending, simplifying the work process and increasing the work efficiency.

[0004] In the copper pipe flattening scheme described in the above literature, a copper pipe with a certain bent shape is placed in a mold groove of a corresponding model, and then the copper pipe is flattened. However, the formed width of the mold groove is larger than the outer diameter of the copper pipe before it is flattened. That is, when the circular copper pipe is placed in the mold groove and flattened, it is impossible to ensure that the copper pipe is in the center position of the mold groove, and it is impossible to control whether the bending angle of the copper pipe will change during the flattening and forming process. Because the copper pipe has good plasticity, when it is flattened, its bending angle will also change correspondingly, but this change is uncontrollable in the above scheme, which easily leads to the flattened copper pipe not being highly matched with the later installation position, that is, the installation error is large, and the bending degree of the flattened copper pipe needs to be adjusted later. Summary of the Invention

[0005] The purpose of the present invention is to provide a pre-flattening device for a mobile phone heat dissipation copper pipe and a flattening method thereof to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A pre-flattening device for a mobile phone heat dissipation copper tube, comprising: a fixed forming block, a support frame for elevating the fixed forming block is fixedly arranged at the bottom of the fixed forming block, the fixed forming block is rectangular, and optical axes are fixedly arranged at four corners of the upper end surface of the fixed forming block. A top plate is fixedly arranged at the top of several of the optical axes, and a movable forming block is slidably sleeved on the outer surfaces of several of the optical axes. A forming groove is formed on one end surface of the fixed forming block close to the movable forming block, and a copper tube is placed inside the forming groove. An extrusion block slidably fitted with the forming groove is fixedly arranged at the bottom of the movable forming block;

[0007] It further comprises: a supporting and limiting unit for restricting the copper tube inside the forming groove at multiple points, and the supporting and limiting unit is located inside the fixed forming block;

[0008] A driving unit for driving the extrusion block to be fitted with the forming groove, and the driving unit is located between the top plate and the movable forming block;

[0009] A surface cleaning unit for removing particulate matter attached to the inner surface of the forming groove, the extrusion block, and the outer surface of the copper tube, and the surface cleaning unit is located between the movable forming block and the fixed forming block.

[0010] Preferably, the supporting and limiting unit includes a special-shaped groove formed at the bottom of the fixed forming block, and the shape of the special-shaped groove is the same as that of the forming groove. A special-shaped through tube is placed inside the special-shaped groove, and the shape of the special-shaped through tube is also the same as that of the special-shaped groove. A straight slot is formed at one end of the special-shaped groove, and one end of the special-shaped through tube slidably penetrates through the straight slot. Several air vent tubes are fixedly arranged at equal intervals on the top of the special-shaped through tube, and the air vent tubes communicate with the special-shaped through tube. One end of each air vent tube away from the special-shaped through tube is slidably fitted inside the forming groove, and an arc-shaped silica gel pad is fixedly sleeved on the outer surface of the upper port of the air vent tube. A collar is fixedly sleeved on the outer surface of the special-shaped groove corresponding to each air vent tube, and a first spring is fixedly arranged between the end of the collar away from the special-shaped through tube and the special-shaped groove. A negative pressure component is arranged at the end of the special-shaped through tube extending out of the straight slot, and several arc-shaped silica gel pads are all distributed on the center line position of the forming groove.

[0011] Preferably, an accommodating groove for accommodating the arc-shaped silicone pad is provided on the inner bottom surface of the forming groove, the arc-shaped silicone pad is arc-shaped, the arc surface diameter of one end of the arc-shaped silicone pad away from the special-shaped through pipe is a, the outer diameter of the copper tube is b, and a<b. When the copper tube is placed on the arc-shaped silicone pad, the dead weight of the copper tube can expand the arc-shaped silicone pad, so that the arc-shaped silicone pad wraps the bottom of the copper tube, and the upper port of the vent pipe is in close contact with the outer surface of the copper tube.

[0012] Preferably, the negative pressure component includes a sealing cylinder fixedly suspended on the side wall of the top plate, and a second hose is fixedly connected and installed between the upper outer surface of the sealing cylinder and one end of the special-shaped through pipe extending out of the straight groove, a piston block is slidably mounted inside the sealing cylinder, and the piston block is located below the docking interface between the sealing cylinder and the second hose, a pull rod is slidably inserted at the bottom of the sealing cylinder, and a sliding plate is fixedly mounted on the top of the pull rod, a tension spring is fixedly arranged between the piston block and the sliding plate, a column is arranged on the outside of the sealing cylinder, and the upper and lower ends of the column are respectively fixedly assembled with the outer wall of the movable forming block and the bottom of the pull rod, when the movable forming block starts to move toward the fixed forming block, the piston block can be pulled downward by the pull rod, the sliding plate and the tension spring, and when the piston block moves downward, the air between the ventilation pipe and the outer wall of the copper tube can be sucked to form a negative pressure.

[0013] Preferably, a stop block is fixedly mounted on the outer surface of the column, and a raised strip is fixedly provided on the end of the stop block away from the column, the raised strip is slidably embedded in the interior of the special-shaped groove, and the raised strip abuts against the outer surface of the special-shaped through tube, and when the movable forming block is located at the topmost position, the raised strip of the stop block pushes the special-shaped through tube inside the special-shaped groove upward, thereby raising a certain distance of the several arc-shaped silicone pads, so as to facilitate the staff to place the copper tube on the several arc-shaped silicone pads.

[0014] Preferably, the driving unit includes a driving motor fixedly mounted on the top of the top plate, the upper end surface of the movable forming block is fixedly provided with a rack that slides through the top plate, the output end of the driving motor is fixedly sleeved with a transmission gear, and the transmission gear is movably engaged with the rack, wherein the driving motor is a reduction motor, and the movable forming block is moved up and down through the engagement of the transmission gear and the rack.

[0015] Preferably, the surface cleaning unit includes two groups of swing arms distributed on both side walls of the fixed forming block and the movable forming block. The number of each group of swing arms is two, and they are symmetrically distributed up and down. The mutually remote ends of the two swing arms on the same side are respectively hinged to the fixed forming block and the movable forming block, and synchronous gears are fixedly installed at the facing ends of the two swing arms. The mutually adjacent synchronous gears are movably meshed, and a hinge plate is jointly hinged and installed between the facing ends of the two swing arms in the same group. An empty groove is formed on the end face of each swing arm close to the center of the fixed forming block, and at least two guide rods are fixedly arranged inside the empty groove. A sliding sleeve frame is slidably sleeved between the two guide rods, and a narrow orifice air spray pipe is fixedly embedded inside the sliding sleeve frame. The nozzle of the narrow orifice air spray pipe faces the side where the synchronous gear is installed on the swing arm, and a second spring is fixedly arranged between the sliding sleeve frame and the bottom surface of the empty groove. An air injection component is arranged between each narrow orifice air spray pipe and the swing arm. As the distance between the fixed forming block and the movable forming block expands or contracts, the included angle between the two swing arms in the same group expands or contracts synchronously.

[0016] Preferably, the air injection component includes an arc-shaped air cylinder fixedly arranged on the end face of each swing arm away from the empty groove, and the arc-shaped air cylinder extends in the direction away from the synchronous gear. An air hole is formed between each arc-shaped air cylinder and the empty groove, and the air hole is fixedly communicated with the end of the narrow orifice air spray pipe away from the nozzle by a first hose. An arc-shaped piston rod is slidably assembled inside each arc-shaped air cylinder, and a mounting frame is fixedly arranged between the end of the arc-shaped piston rod extending out of the arc-shaped air cylinder and the fixed forming block / the movable forming block. When the distance between the two swing arms shrinks, the arc-shaped piston rod will be pushed into the arc-shaped air cylinder, and the gas inside the arc-shaped air cylinder will be conveyed into the narrow orifice paint spray pipe.

[0017] Preferably, the guide rod is flush with the end face of the swing arm away from the arc-shaped air cylinder to prevent the guide rod from hindering the fitting of the two swing arms in the same group.

[0018] A flattening method for a mobile phone heat dissipation copper pipe pre-flattening device, the method comprising the following steps:

[0019] S1. Product placement stage: Place the copper pipe inside the forming groove and make the copper pipe stably located above several arc-shaped silica gel pads. The copper pipe is preliminarily wrapped and supported by the several arc-shaped silica gel pads;

[0020] S2. Driving stage: Drive the operation of the transmission gear and the rack through the driving motor to promote the stable movement of the movable forming block towards the fixed forming block;

[0021] S3. Negative pressure positioning stage: When the movable forming block in S2 moves downward, the inside of the special-shaped through pipe and the ventilation pipe is suctioned through the piston block and the second hose, so that the air pressure between the copper pipe and the ventilation pipe is less than the external atmospheric pressure, thereby realizing the negative pressure stabilizing effect;

[0022] S4. Surface self-cleaning stage: When the movable forming block in S2 moves downward, the angle between the two swing arms in the same group gradually decreases, and the arc-shaped piston rod gradually extends into the inside of the arc-shaped air cylinder, and the gas inside the arc-shaped air cylinder is ejected through the slit of the slit nozzle pipe, so as to blow high-speed air flow to the inner surface of the forming groove, the extrusion block and the outer surface of the copper pipe, and clean the attached particulate matter on the surface.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] Through the supporting and limiting unit, the present invention can perform multi-point negative pressure limitation on the copper pipe placed in the forming groove, thereby avoiding the random deviation of the angle at the bending part when the copper pipe is flattened, which affects the production precision of the flat copper pipe. Moreover, during the flattening process, the surface cleaning unit is triggered by the driving unit to remove the attached particulate matter on the inner surface of the forming groove, the extrusion block and the outer surface of the copper pipe, avoiding the appearance of multiple pits with different sizes on the surface of the copper pipe during the flattening process. Description of the drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the sealing cylinder of the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the forming groove and the special-shaped groove of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged view at A in;

[0029] Figure 5 It is a schematic diagram of the structure of the extrusion block of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged view at B in;

[0031] Figure 7 It is a schematic diagram of the structure of the fixed forming block and the movable forming block in the close state of the present invention.

[0032] In the figure: 1, fixed forming block; 2, support frame; 3, optical axis; 4, movable forming block; 5, top plate; 6, drive motor; 7, transmission gear; 8, rack; 9, forming groove; 10, extrusion block; 11, copper tube; 12, first hose; 13, special-shaped groove; 14, special-shaped through tube; 15, straight slot; 16, abutting block; 17, collar; 18, arc-shaped silica gel pad; 19, accommodating groove; 20, ventilation pipe; 21, first spring; 22, column; 23, sealing cylinder; 24, pull rod; 25, second hose; 26, piston block; 27, tension spring; 28, sliding disc; 29, swing arm; 30, hinge plate; 31, synchronous gear; 32, arc-shaped air cylinder; 33, arc-shaped piston rod; 34, mounting bracket; 35, air hole; 36, empty slot; 37, sliding sleeve frame; 38, guiding rod; 39, narrow-mouth spray pipe; 40, second spring. Specific implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1: Please refer to Figures 1 - 5 , a pre-flattening device for a mobile phone heat dissipation copper tube shown in the figure, including: a fixed forming block 1, a support frame 2 for elevating the fixed forming block 1 is fixedly arranged at the bottom of the fixed forming block 1. The fixed forming block 1 is rectangular, and optical axes 3 are fixedly arranged at the four corners of the upper end surface of the fixed forming block 1. A top plate 5 is fixedly arranged at the top of several optical axes 3, and a movable forming block 4 is slidably sleeved on the outer surfaces of several optical axes 3. A forming groove 9 is opened on one end surface of the fixed forming block 1 close to the movable forming block 4, and a copper tube 11 is placed inside the forming groove 9. An extrusion block 10 slidably fitted with the forming groove 9 is fixedly arranged at the bottom of the movable forming block 4;

[0035] It further includes: a supporting and limiting unit for restricting the copper tube 11 inside the forming groove 9 at multiple points. The supporting and limiting unit is located inside the fixed forming block 1;

[0036] A driving unit for driving the extrusion block 10 to fit into the forming groove 9. The driving unit is located between the top plate 5 and the movable forming block 4;

[0037] A surface cleaning unit for removing attached particulate matter on the inner surface of the forming groove 9, the outer surface of the extrusion block 10 and the outer surface of the copper tube 11. The surface cleaning unit is located between the movable forming block 4 and the fixed forming block 1.

[0038] The supporting and limiting unit includes a special-shaped groove 13 opened at the bottom of the fixed forming block 1, and the shape of the special-shaped groove 13 is consistent with the shape of the forming groove 9, a special-shaped through pipe 14 is placed inside the special-shaped groove 13, and the special-shaped through pipe 14 is also consistent with the shape of the special-shaped groove 13, one end of the special-shaped groove 13 is opened with a straight slot 15, and one end of the special-shaped through pipe 14 slides through the straight slot 15, and a plurality of ventilation pipes 20 are fixedly arranged at equal intervals on the top of the special-shaped through pipe 14, and the ventilation pipe 20 is connected to the special-shaped through pipe 14, each One end of each ventilation pipe 20 away from the special-shaped through pipe 14 is slidably embedded in the interior of the forming groove 9, and an arc-shaped silicone pad 18 is fixedly sleeved on the outer surface of the upper port of the ventilation pipe 20, and a ring 17 is fixedly sleeved on the outer surface of each ventilation pipe 20 corresponding to the interior of the special-shaped groove 13, and a first spring 21 is fixedly arranged between the end of the ring 17 away from the special-shaped through pipe 14 and the special-shaped groove 13, and a negative pressure component is arranged on the end of the special-shaped through pipe 14 extending out of the straight slot 15, and a plurality of arc-shaped silicone pads 18 are distributed on the center line position of the forming groove 9.

[0039] The inner bottom surface of the forming groove 9 is provided with a receiving groove 19 for receiving the arc-shaped silicone pad 18. The arc-shaped silicone pad 18 is arc-shaped. The arc surface diameter of the end of the arc-shaped silicone pad 18 away from the special-shaped through pipe 14 is a, the outer diameter of the copper tube 11 is b, and a<b. When the copper tube 11 is placed on the arc-shaped silicone pad 18, the dead weight of the copper tube 11 can open the arc-shaped silicone pad 18, so that the arc-shaped silicone pad 18 wraps the bottom of the copper tube 11, and the upper end of the vent pipe 20 is in close contact with the outer surface of the copper tube 11.

[0040] The negative pressure component includes a sealing cylinder 23 fixedly mounted on the side wall of the top plate 5, and a second hose 25 is fixedly connected and installed between the upper outer surface of the sealing cylinder 23 and one end of the special-shaped through pipe 14 extending out of the straight slot 15, a piston block 26 is slidably mounted inside the sealing cylinder 23, and the piston block 26 is located below the interface between the sealing cylinder 23 and the second hose 25, a pull rod 24 is slidably inserted at the bottom of the sealing cylinder 23, and a sliding plate 28 is fixedly installed on the top of the pull rod 24, and the piston block 26 is slidably mounted on the bottom of the sealing cylinder 23. A tension spring 27 is fixedly arranged between the sliding plates 28, a column 22 is arranged on the outside of the sealing cylinder 23, and the upper and lower ends of the column 22 are fixedly assembled with the outer wall of the movable forming block 4 and the bottom of the pull rod 24 respectively. When the movable forming block 4 starts to move toward the fixed forming block 1, the piston block 26 can be pulled downward by the pull rod 24, the sliding plate 28 and the tension spring 27. When the piston block 26 moves downward, the air between the ventilation pipe 20 and the outer wall of the copper tube 11 can be sucked to form a negative pressure.

[0041] A resisting block 16 is fixedly sleeved on the outer surface of the column 22, and a raised strip is fixedly arranged at one end of the resisting block 16 away from the column 22. The raised strip is slidably embedded in the internal of the special-shaped groove 13 and abuts against the outer surface of the special-shaped through pipe 14. When the movable forming block 4 is at the topmost position, the raised strip of the resisting block 16 pushes the special-shaped through pipe 14 inside the special-shaped groove 13 upward, so as to raise several arc-shaped silica gel pads 18 by a certain distance, facilitating the staff to place the copper pipe 11 on the several arc-shaped silica gel pads 18.

[0042] The driving unit includes a driving motor 6 fixedly installed on the top of the top plate 5. A rack 8 that slidably penetrates through the top plate 5 is fixedly arranged on the upper end surface of the movable forming block 4. The output end of the driving motor 6 is fixedly sleeved with a transmission gear 7, and the transmission gear 7 is movably meshed with the rack 8. The driving motor 6 is a reduction motor, and through the meshing of the transmission gear 7 and the rack 8, the movable forming block 4 is driven to move up and down.

[0043] A flattening method for a mobile phone heat dissipation copper pipe pre-flattening device, the method comprising the following steps:

[0044] S1. Product placement stage: Place the copper pipe 11 inside the forming groove 9 and make the copper pipe 11 stably located above several arc-shaped silica gel pads 18, and the several arc-shaped silica gel pads 18 play a role of initially wrapping and supporting the copper pipe 11.

[0045] S2. Driving stage: Drive the operation of the transmission gear 7 and the rack 8 through the driving motor 6, and promote the movable forming block 4 to stably move towards the fixed forming block 1.

[0046] S3. Negative pressure positioning stage: When the movable forming block 4 in S2 moves downward, suck the inside of the special-shaped through pipe 14 and the air pipe 20 through the piston block 26 and the second hose 25, so that the air pressure between the copper pipe 11 and the air pipe 20 is less than the external atmospheric pressure, thereby realizing the negative pressure stabilizing effect.

[0047] S4. Surface self-cleaning stage: When the movable forming block 4 in S2 moves downward, the angle between two swing arms 29 in the same group gradually decreases, and the arc-shaped piston rod 33 gradually extends into the arc-shaped air cylinder 32, and the gas inside the arc-shaped air cylinder 32 is ejected through the slit of the slit jet pipe 39, so as to blow high-speed air flow to the inner surface of the forming groove 9, the extrusion block 10 and the outer surface of the copper pipe 11 to clean the attached particulate matter on the surface.

[0048] Working principle: The staff picks up the copper tube 11 to be flattened with silicone or plastic tweezers and places the copper tube 11 above a number of arc-shaped silicone pads 18. After the placement is completed, the staff can start the driving motor 6. Under the action of the driving motor 6, the movable forming block 4 moves uniformly towards the fixed forming block 1. During the downward movement of the movable forming block 4, its abutting block 16 moves downward and no longer supports the special-shaped through tube 14, allowing the special-shaped through tube 14 to move downward under the action of a number of first springs 21, so that the copper tube 11 moves to the bottom of the forming groove 9. At the same time, during the downward movement of the movable forming block 4, it can also drive the pull rod 24 to move downward through the column 22, so that the piston block 26, the tension spring 27 and the sliding disk 28 inside the sealing cylinder 23 move downward as a whole. At this time, the piston block 26 can suck the air between the copper tube 11 and the ventilation pipe 20, creating a negative pressure state between the copper tube 11 and the ventilation pipe 20, and enabling multi-point negative pressure adsorption limitation on the outer surface of the copper tube 11;

[0049] Since the air pressure between the piston block 26 and the ventilation pipe 20 gradually decreases, when the piston block 26 can no longer move downward, the tension spring 27 will be stretched by the sliding disk 28 at this time. While not affecting the normal movement of the movable forming block 4, it can also ensure the negative pressure state between the piston block 26 and the ventilation pipe 20, ensuring the stability of the positioning of the copper tube 11;

[0050] In the above multi-point positioning state, the copper tube 11 is flattened by the extrusion block 10, which can effectively prevent the copper tube 11 from deforming randomly inside the forming groove 9, ensuring that the bent part of the copper tube 11 does not shift randomly, so that after the copper tube 11 is flattened, its overall shape and bending angle are the same as those in the state before being flattened, thus ensuring the accuracy of the flattening process of the copper tube 11.

[0051] Embodiment 2: Please refer to Figures 5 - 7, This embodiment is a further illustration of Embodiment 1. The surface cleaning unit includes two groups of swing arms 29 distributed on both side walls of the fixed forming block 1 and the movable forming block 4. The number of swing arms 29 in each group is two, and they are symmetrically distributed up and down. The mutually remote ends of the two swing arms 29 on the same side are respectively hinged to the fixed forming block 1 and the movable forming block 4, and synchronous gears 31 are fixedly installed at the facing ends of the two swing arms 29. The two mutually adjacent synchronous gears 31 are movably meshed, and a hinge plate 30 is jointly hinged and installed between the facing ends of the two swing arms 29 in the same group. An empty groove 36 is formed on the end face of each swing arm 29 close to the center of the fixed forming block 1, and at least two guiding rods 38 are fixedly arranged inside the empty groove 36. A sliding sleeve frame 37 is jointly sleeved and slid between the two guiding rods 38, and a narrow orifice air spraying pipe 39 is fixedly embedded inside the sliding sleeve frame 37. The nozzle of the narrow orifice air spraying pipe 39 faces the side where the synchronous gear 31 is installed on the swing arm 29, and a second spring 40 is fixedly arranged between the sliding sleeve frame 37 and the bottom surface of the empty groove 36. An air injection component is arranged between each narrow orifice air spraying pipe 39 and the swing arm 29. As the distance between the fixed forming block 1 and the movable forming block 4 expands or contracts, the included angle between the two swing arms 29 in the same group expands or contracts synchronously.

[0052] The air injection component includes an arc-shaped air cylinder 32 fixedly arranged on the end face of each swing arm 29 away from the empty groove 36, and the arc-shaped air cylinder 32 extends in the direction away from the synchronous gear 31. An air hole 35 is formed between each arc-shaped air cylinder 32 and the empty groove 36, and a first hose 12 is fixedly connected between the air hole 35 and the end of the narrow orifice air spraying pipe 39 away from the nozzle. An arc-shaped piston rod 33 is slidably assembled inside each arc-shaped air cylinder 32, and a mounting frame 34 is fixedly arranged between the end of the arc-shaped piston rod 33 extending out of the arc-shaped air cylinder 32 and the fixed forming block 1 / the movable forming block 4. When the distance between the two swing arms 29 shrinks, the arc-shaped piston rod 33 will be pushed into the arc-shaped air cylinder 32, and the gas inside the arc-shaped air cylinder 32 will be conveyed into the narrow orifice paint spraying pipe 39.

[0053] The guiding rod 38 is flush with the end face of the swing arm 29 away from the arc-shaped air cylinder 32 to prevent the guiding rod 38 from hindering the fitting of the two swing arms 29 in the same group.

[0054] In this embodiment: During the flattening and forming process of the copper tube 11, if there are solid particles adhering to the surface of the copper tube 11 or the lower end surface of the extrusion block 10, when the solid particles are extruded onto the copper tube 11, various pit marks will be formed on the surface of the copper tube 11. Small pits will affect the overall aesthetics of the copper tube 11, and large pits will break the inner wall structure of the copper tube 11. Therefore, in this solution, when the movable forming block 4 moves downward, the two swing arms 29 on both sides bend synchronously, and the angles of the two swing arms 29 gradually decrease. During the angle change of the two swing arms 29, the arc-shaped piston rod 33 extends into the arc-shaped air cylinder 32, and the air inside the arc-shaped air cylinder 32 is squeezed through the first hose 12 into the narrow nozzle pipe 39, and finally sprayed out through the narrow nozzle of the narrow nozzle pipe 39. The compressed air is sprayed out through the narrow nozzle, and its flow rate is fast. The high-speed air flows scour the surface of the extrusion block 10, the surface of the forming groove 9, and the surface of the copper tube 11 respectively, and can effectively blow away the particulate matter adhering to the surfaces of the three, thereby achieving the effect of surface self-cleaning.

[0055] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile phone heat dissipation copper tube pre-flattening device, characterized in that: include: A fixed forming block (1), wherein a support frame (2) for raising the fixed forming block (1) is fixedly arranged at the bottom of the fixed forming block (1), the fixed forming block (1) is rectangular, and optical axes (3) are fixedly arranged at four angles of the upper end surface of the fixed forming block (1), a top plate (5) is fixedly arranged on the top of a plurality of the optical axes (3), and a movable forming block (4) is slidably mounted on the outer surfaces of a plurality of the optical axes (3), a forming groove (9) is provided on one end surface of the fixed forming block (1) close to the movable forming block (4), and a copper tube (11) is placed inside the forming groove (9), and an extrusion block (10) slidably engaged with the forming groove (9) is fixedly arranged at the bottom of the movable forming block (4); Also includes: A supporting and limiting unit, used for achieving a multi-point limiting effect on the copper tube (11) inside the forming groove (9), the supporting and limiting unit being located inside the fixed forming block (1); a driving unit, used for driving the extrusion block (10) to engage with the forming groove (9), the driving unit being located between the top plate (5) and the movable forming block (4); a surface cleaning unit, used for removing particles attached to the inner surface of the molding groove (9), the outer surface of the extrusion block (10) and the copper tube (11), the surface cleaning unit being located between the movable molding block (4) and the fixed molding block (1); The supporting and limiting unit comprises a special-shaped groove (13) formed at the bottom of the fixed forming block (1), and the shape of the special-shaped groove (13) is consistent with the shape of the forming groove (9), a special-shaped through pipe (14) is placed inside the special-shaped groove (13), and the special-shaped through pipe (14) is also consistent with the shape of the special-shaped groove (13), one end of the special-shaped groove (13) is formed with a straight slot (15), and one end of the special-shaped through pipe (14) slides through the straight slot (15), and a plurality of ventilation pipes (20) are fixedly arranged at equal intervals on the top of the special-shaped through pipe (14), and the ventilation pipes (20) The vent pipe (20) is connected to the special-shaped through pipe (14), one end of each vent pipe (20) away from the special-shaped through pipe (14) is slidably embedded in the interior of the forming groove (9), and the outer surface of the upper end of the vent pipe (20) is fixedly sleeved with an arc-shaped silicone pad (18), the interior of the special-shaped groove (13) corresponds to the outer surface of each vent pipe (20) and a collar (17) is fixedly sleeved, and a first spring (21) is fixedly arranged between the end of the collar (17) away from the special-shaped through pipe (14) and the special-shaped groove (13), and the end of the special-shaped through pipe (14) extending out of the straight groove (15) is provided with a negative pressure component; The negative pressure component comprises a sealing cylinder (23) fixedly mounted on the side wall of the top plate (5), and a second hose (25) is fixedly installed between the upper outer surface of the sealing cylinder (23) and one end of the special-shaped through pipe (14) extending out of the straight slot (15), a piston block (26) is slidably mounted inside the sealing cylinder (23), and the piston block (26) is located below the interface between the sealing cylinder (23) and the second hose (25), a pull rod (24) is slidably inserted at the bottom of the sealing cylinder (23), and a sliding plate (28) is fixedly installed on the top of the pull rod (24), a tension spring (27) is fixedly arranged between the piston block (26) and the sliding plate (28), a column (22) is arranged on the outside of the sealing cylinder (23), and the upper and lower ends of the column (22) are respectively fixedly assembled with the outer wall of the movable forming block (4) and the bottom of the pull rod (24).

2. A mobile phone heat dissipation copper tube pre-flattening device according to claim 1, characterized in that: The inner bottom surface of the molding groove (9) is provided with a receiving groove (19) for receiving the arc-shaped silicone pad (18); the arc-shaped silicone pad (18) is in an arc shape; the arc surface of one end of the arc-shaped silicone pad (18) away from the special-shaped through pipe (14) has a diameter a; the outer diameter of the copper pipe (11) is b, and a<b.

3. A mobile phone heat dissipation copper tube pre-flattening device according to claim 2, characterized in that: A stop block (16) is fixedly mounted on the outer surface of the column (22), and a protruding strip is fixedly disposed on one end of the stop block (16) away from the column (22), the protruding strip is slidably embedded in the interior of the special-shaped groove (13), and the protruding strip abuts against the outer surface of the special-shaped through pipe (14).

4. A mobile phone heat dissipation copper tube pre-flattening device according to claim 3, characterized in that: The driving unit comprises a driving motor (6) fixedly mounted on the top of the top plate (5); a rack (8) slidably penetrating the top plate (5) is fixedly provided on the upper end surface of the movable forming block (4); a transmission gear (7) is fixedly sleeved on the output end of the driving motor (6), and the transmission gear (7) is movably meshed with the rack (8).

5. A mobile phone heat dissipation copper tube pre-flattening device according to claim 4, characterized in that: The surface cleaning unit comprises two groups of swing arms (29) distributed on the two side walls of the fixed forming block (1) and the movable forming block (4), each group of the swing arms (29) comprises two swing arms (29) which are symmetrically distributed in an upper and lower manner, and the ends of the two swing arms (29) located on the same side which are away from each other are respectively hinged to the fixed forming block (1) and the movable forming block (4), and the facing ends of the two swing arms (29) are fixedly mounted with synchronous gears (31), and the two synchronous gears (31) which are close to each other are movably meshed, and the facing ends of the two swing arms (29) located in the same group are jointly hingedly mounted with a hinge plate (30), and each swing arm (29) is close to the hinge plate (31). An end face at the center of each of the fixed forming blocks (1) is provided with a hollow groove (36), and at least two guide rods (38) are fixedly arranged inside the hollow groove (36), a sliding sleeve frame (37) is slidably sleeved between the two guide rods (38), and a narrow nozzle air injection pipe (39) is fixedly installed inside the sliding sleeve frame (37), the nozzle of the narrow nozzle air injection pipe (39) faces the side of the swing arm (29) on which the synchronous gear (31) is installed, and a second spring (40) is fixedly arranged between the sliding sleeve frame (37) and the bottom surface of the hollow groove (36), and a gas injection component is arranged between each narrow nozzle air injection pipe (39) and the swing arm (29).

6. A mobile phone heat dissipation copper tube pre-flattening device according to claim 5, characterized in that: The gas injection component comprises an arc-shaped gas cylinder (32) fixedly arranged on an end face of each swing arm (29) away from the slot (36), and the arc-shaped gas cylinder (32) extends in a direction away from the synchronous gear (31), an air hole (35) is opened between each arc-shaped gas cylinder (32) and the slot (36), and a first hose (12) is fixedly connected between the air hole (35) and an end of the narrow nozzle air injection pipe (39) away from the nozzle, and an arc-shaped piston rod (33) is slidably mounted inside each arc-shaped gas cylinder (32), and a mounting frame (34) is fixedly arranged between an end of the arc-shaped piston rod (33) extending out of the arc-shaped gas cylinder (32) and the fixed forming block (1) / the movable forming block (4).

7. A mobile phone heat dissipation copper tube pre-flattening device according to claim 6, characterized in that: The guide rod (38) and an end surface of the swing arm (29) away from the arc-shaped air cylinder (32) are flush.

8. A flattening method for a mobile phone heat dissipation copper tube pre-flattening device according to claim 7, characterized in that: The method comprises the following steps: S1, product placement stage: placing the copper tube (11) inside the forming groove (9), and making the copper tube (11) stably located on the upper part of a plurality of arc-shaped silicone pads (18), so that the copper tube (11) is initially wrapped and supported by the plurality of arc-shaped silicone pads (18); S2, driving stage: driving the transmission gear (7) and the rack (8) by the driving motor (6), so as to cause the movable forming block (4) to move stably toward the fixed forming block (1); S3, negative pressure positioning stage: when the movable forming block (4) in S2 moves downward, the piston block (26) and the second hose (25) suck the inside of the special-shaped through pipe (14) and the vent pipe (20), so that the air pressure between the copper pipe (11) and the vent pipe (20) is lower than the external atmospheric pressure, thereby achieving a negative pressure stabilization effect; S4, surface self-cleaning stage: When the movable forming block (4) in S2 moves downward, the angle between the two swing arms (29) in the same group is gradually reduced, and the arc-shaped piston rod (33) gradually extends into the interior of the arc-shaped air cylinder (32), and the gas inside the arc-shaped air cylinder (32) is ejected through the narrow opening of the narrow opening jet pipe (39), thereby blowing a high-speed airflow to the inner surface of the forming groove (9), the outer surface of the extrusion block (10) and the copper tube (11), and cleaning the particles attached to the surface.

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