A swing car body edge trimming device
By using a combination of hot air components and scraper baffles to trim rough edges on the body of the rocking car, the problem of trimming rough edges on irregularly shaped plastic parts has been solved, thereby improving safety and appearance quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEBEI TIENIU BICYCLE IND CO LTD
- Filing Date
- 2024-01-29
- Publication Date
- 2026-06-19
AI Technical Summary
Existing technologies lack effective equipment to trim the rough edges of irregularly shaped rocking car plastic parts, resulting in hard residual rough edges that pose safety hazards. Furthermore, existing methods can easily lead to deformation or rough appearance of the plastic parts.
A device for trimming rough edges on a rocking car body is adopted, which combines a hot air assembly and a scraper partition. The rough edges are heated by concentrated hot air and shaped by scraper grooves. Heat management is achieved by combining an air intake shell and an air duct, thereby softening and rounding the rough edges.
It enables efficient trimming of rough edges on irregularly shaped plastic parts, improving safety and appearance quality, making the rough edges smooth and rounded, and avoiding deformation and roughness problems.
Smart Images
Figure CN117719109B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of plastic product processing equipment, and more specifically, it relates to a device for trimming rough edges on the body of a rocking car. Background Technology
[0002] Rocking cars are a type of children's vehicle. Currently, the bodies of rocking cars are made of plastic parts. During the molding process, plastic parts are prone to developing rough edges. Although most of these rough edges are trimmed off after molding, the irregular shapes of the rocking car's body components often leave residue during trimming. This residual rough edge is usually quite thick, and because the rocking car's body material is relatively hard, these residual rough edges are also quite hard. If directly assembled, there is a possibility of children getting scratched during use. Therefore, the rough edges need to be trimmed before assembly.
[0003] However, there is currently a lack of equipment for trimming the burrs on the irregularly shaped plastic parts of rocking cars. Previously, the trimming method typically involved using a hot air gun to melt the burrs, which would then become more rounded after cooling, significantly improving safety. However, because the hot air gun has a large blowing area, it can soften larger areas around the burrs, making these areas prone to deformation. Existing technology also uses mechanical grinding to remove burrs, which involves directly grinding the burrs with a tool or grinding head. While this method doesn't deform the plastic parts, the irregular shape of the rocking car components makes it difficult to control the grinding quality. Furthermore, the ground area is relatively rough, angular, and not rounded, resulting in poor appearance quality. Summary of the Invention
[0004] The purpose of this invention is to provide a device for trimming the rough edges of a rocking car body, so as to solve the technical problem that there is a lack of equipment in the prior art for trimming the rough edges of irregularly shaped plastic parts.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a device for trimming rough edges on the body of a rocking car, including a hot air assembly, a mounting sleeve, an air intake shell, and a top pressure head. The system includes an elastic element and an air guide tube. A hot air assembly generates hot air and has an air inlet and a hot air outlet. A mounting sleeve connects to the hot air outlet of the hot air assembly. One end of the suction housing is fixedly connected to the mounting sleeve, and the other end has an air inlet. The suction housing contains a working chamber and an exhaust port. A pressure head is located within the working chamber, with one end slidably connected to the mounting sleeve and the other end being a conical structure. This conical structure passes through the air inlet to block and open it during sliding. The smaller end of the conical structure protrudes outside the air inlet. The pressure head contains a hot air channel, and a scraper-shaped baffle is located at the conical structure. The scraper-shaped baffle has a scraper groove, which contacts the workpiece to shape it. An elastic element is located between the mounting sleeve and the pressure head to provide elasticity for sealing the air inlet. One end of the air guide tube connects to the exhaust port, and the other end connects to the air inlet of the hot air assembly.
[0006] In one possible implementation, based on the above technical solutions, the end of the cone structure is provided with a clearance groove, and the bottom of the scraping groove on the scraping partition protrudes beyond the bottom of the clearance groove.
[0007] In one possible implementation, based on the above technical solutions, a scraper baffle and a top pressure head are provided; both the scraper baffle and the top pressure head are provided with screw holes, and the scraper baffle is fastened to the top pressure head by screws.
[0008] In one possible implementation, based on the above technical solutions, the end of the top pressure head near the mounting sleeve is a circular tube structure, which is slidably and rotatably connected with the mounting sleeve. The top pressure head is provided with an abutment ring, and an elastic element is sleeved on the top pressure head, with one end abutting against the abutment ring and the other end abutting against the mounting sleeve. The abutment ring and / or the part on the mounting sleeve used to abut against the elastic element is provided with a bearing assembly.
[0009] In one possible implementation, based on the above technical solutions, a sealing element is provided between the top pressure head and the mounting sleeve, and the elastic element is a spring or an elastic sleeve; an air collection hood is provided outside the air inlet of the suction shell; the air collection hood is detachably connected to the suction shell.
[0010] In one possible implementation, based on the above technical solutions, the mounting sleeve includes an outer heat insulation sleeve, a sliding cylinder, and an expansion sleeve. The sliding cylinder and the expansion sleeve are both located inside the outer heat insulation sleeve. The sliding cylinder is slidably engaged with the top pressure head. The hot air outlet of the hot air assembly is a tubular structure. The expansion sleeve is used to insert into the hot air outlet and expands after being heated to clamp the hot air outlet.
[0011] In conjunction with the above technical solutions, in one possible implementation, the expansion sleeve is further provided with a heat-conducting component, which includes a heat-collecting mesh and heat-conducting wires. The heat-collecting mesh is located inside the expansion sleeve to absorb heat from the hot air when it passes through. The heat-conducting wires are located inside the expansion sleeve and are thermally connected to the heat-collecting mesh to transfer the heat from the heat-collecting mesh to the expansion sleeve.
[0012] In one possible implementation, in conjunction with the above technical solutions, the mounting sleeve further includes a limiting sleeve, which is a heat insulation component and is located inside the outer heat insulation sleeve and between the slide cylinder and the expansion sleeve. The inner diameter of the limiting sleeve is smaller than the inner diameter of the slide cylinder and the expansion sleeve, so as to limit the hot air outlet and the top pressure head of the hot air assembly and reduce the heat transfer between the slide cylinder and the expansion sleeve. The heat collection net is located inside the limiting sleeve, and the heat conduction wire extends from the limiting sleeve to the expansion sleeve.
[0013] In one possible implementation, based on the above technical solutions, the hot air assembly includes a hot air gun, with both the air inlet and the hot air outlet located on the hot air gun. The sway car body rough edge trimming device also includes a deflector, which covers the air inlet of the hot air assembly and is connected to the air duct. The deflector has an air inlet, and the air inlet has an air intake adjustment component to control the opening of the air inlet.
[0014] In one possible implementation, based on the above technical solutions, the air guide is a cylindrical structure. Multiple first air inlets are circumferentially arranged along the side edge of the air guide. The air intake adjustment assembly includes an adjustment ring inside the air guide and an adjustment handle passing through the air guide. One end of the adjustment handle is connected to the adjustment ring, and the other end extends to the outside of the air guide. Multiple second air inlets are circumferentially arranged along the upper edge of the adjustment ring. The adjustment ring is rotatably disposed inside the air guide, rotating under the influence of the adjustment handle, allowing the second air inlets and first air inlets to overlap to varying degrees to adjust the air intake volume. An air intake dispersion pipe is also provided inside the air guide. The air intake dispersion pipe is fixedly connected to the air guide and communicates with the air guide pipe. The air intake dispersion pipe is located inside the first air inlets and has multiple through holes. When air is drawn in through the first air inlets, aerodynamics is used to expel the gas inside the air intake dispersion pipe, thereby increasing the suction power of the air guide pipe.
[0015] The beneficial effects of the burr trimming device for the rocking car body provided by this invention are as follows: Compared with the prior art, before use, this invention activates the hot air assembly, which draws in and heats air from the air inlet, and then blows it through the mounting sleeve to the hot air channel of the top pressure head from the hot air outlet. The hot air contracts at the conical structure of the top pressure head before being blown out, which not only reduces the area of hot air blowing out, making the heat more concentrated and softening the burrs more easily, but also prevents the larger areas around the burrs from softening and deforming. Furthermore, it transfers a large amount of heat to the scraping plate, resulting in a higher temperature for the scraping plate, especially the scraping groove. During use, the user brings the conical end of the top pressure head close to the area where burrs need to be removed, using the hot air to melt the burrs. When the burrs are relatively large, the scraping groove on the top pressure head is pressed against the plastic part and the plastic is moved. This design works in two ways. First, the hot air from one side of the scraper baffle softens the rough edges. As the scraper passes through the groove, the heat from the baffle is transferred to the rough edges, shaping them. After the baffle passes, the hot air from the other side continues to heat the shaped area, melting its surface. After the top pressure head has completely passed, the surface cools and forms a smooth, rounded shape. Second, the top pressure head retracts into the suction housing, creating an air intake between the housing and the head. Under the suction of the hot air assembly's inlet, heat near the rough edges is drawn into the suction housing and then into the hot air assembly via the air duct. This results in a higher outlet temperature, making it easier to soften or melt the rough edges. This not only facilitates rapid heat dissipation from the rough edges but also allows for adjustment of the intake size by varying the pressure applied, enabling adjustments to the temperature of the hot air as needed. The aforementioned device facilitates the trimming of rough edges on irregularly shaped plastic parts such as the body of the rocking car, making the edges and surfaces of the plastic parts smooth and rounded, which greatly improves safety during use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a device for trimming rough edges on the body of a rocking car according to an embodiment of the present invention.
[0018] Figure 2 This is a front cross-sectional view of a rocking car body rough edge trimming device provided in an embodiment of the present invention.
[0019] Figure 3A front cross-sectional view of a rocking car body rough edge trimming device provided in another embodiment of the present invention;
[0020] Figure 4 This is a schematic diagram of the rear cross-sectional structure of a rocking car body rough edge trimming device provided in one embodiment of the present invention.
[0021] The labels for the attached figures are as follows:
[0022] 10. Mounting sleeve; 11. External heat insulation sleeve; 12. Slide cylinder; 13. Expansion sleeve;
[0023] 14. Limiting sleeve; 15. Heat collection mesh; 16. Heat conducting wire;
[0024] 20. Suction shell; 21. Working chamber; 23. Gas collection hood;
[0025] 30. Top pressure head; 31. Hot air passage; 32. Scraper baffle; 321. Scraper groove;
[0026] 33. Clearance groove; 34. Abutment ring; 35. Seal;
[0027] 40. Elastic components; 41. Bearing assemblies;
[0028] 50. Air delivery tube;
[0029] 60. Draft shield; 61. First air intake; 62. Adjusting ring;
[0030] 63. Adjustment handle; 64. Second air inlet; 65. Air inlet dispersion pipe;
[0031] 70. Hot air assembly. Detailed Implementation
[0032] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.
[0034] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0035] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.
[0037] The rough edge trimming device for the body of the rocking car provided by the present invention will now be described.
[0038] like Figures 1 to 4As shown, the first embodiment of the present invention provides a device for trimming rough edges on the body of a rocking car, including a hot air assembly 70, a mounting sleeve 10, an air intake shell 20, a top pressure head 30, an elastic element 40, and an air guide pipe 50. The hot air assembly 70 is used to generate hot air and is provided with an air inlet and a hot air outlet; the mounting sleeve 10 is connected to the hot air outlet of the hot air assembly 70; one end of the air intake shell 20 is fixedly connected to the mounting sleeve 10, and the other end is provided with an air inlet. The air intake shell 20 is provided with a working chamber 21 inside, and the air intake shell 20 is also provided with an exhaust hole; the top pressure head 30 is disposed in the working chamber 21, and one end is slidably connected to the mounting sleeve 10, and the other end is a conical structure, which passes through the air inlet so that it can slide during sliding. The air inlet is blocked and opened, with the small end of the cone structure exposed outside the air inlet; the top pressure head 30 is provided with a hot air channel 31, and a scraper 32 is provided at the cone structure of the hot air channel 31. The scraper 32 is provided with a scraper groove, and the scraper 32 contacts the workpiece through the scraper groove to shape the workpiece; the elastic element 40 is provided between the mounting sleeve 10 and the top pressure head 30 to provide the top pressure head 30 with the elastic force to close the air inlet; one end of the air guide pipe 50 is connected to the exhaust hole, and the other end is connected to the air inlet of the hot air assembly 70.
[0039] Before use, the hot air assembly 70 is activated, which draws in and heats air from the air inlet and then blows it from the hot air outlet through the mounting sleeve 10 to the hot air channel 31 of the top pressure head 30. The hot air is blown out after contracting at the conical structure of the top pressure head 30, which not only reduces the area of hot air blowing out, making the heat more concentrated and making the burrs easier to soften, but also prevents the larger parts around the burrs from softening and deforming. In addition, a large amount of heat can be transferred to the scraper plate 32, so that the scraper plate 32, especially the scraper groove, has a higher temperature.
[0040] In use, the user brings the conical end of the pressure head 30 close to the area where burrs need to be removed, and uses hot air to melt the burrs. Figure 2 As shown; when the burrs are relatively large, the scraper groove on the top pressure head 30 is pressed onto the plastic part and the plastic is moved, such as... Figure 3As shown. This design allows the hot air on one side of the scraper 32 to soften the rough edges first, and as the scraper groove passes, the heat from the scraper 32 is transferred to the rough edges, shaping them. After the scraper 32 passes, the hot air on the other side continues to heat the shaped area, melting its surface. After the top pressure head 30 has completely passed, it cools and forms a smooth, rounded shape. On the other hand, the top pressure head 30 partially retracts into the suction housing 20, creating an air intake between the suction housing 20 and the top pressure head 30. Under the suction of the air inlet of the hot air assembly 70, heat near the rough edges is drawn into the suction housing 20 and enters the hot air assembly 70 via the air guide pipe 50. This results in a higher outlet temperature for the hot air from the hot air assembly 70, making it easier to soften or melt the rough edges. This not only facilitates rapid heat dissipation from the rough edges but also allows for adjustment of the intake size through different pressing pressures, enabling adjustments to the temperature of the hot air as needed.
[0041] The aforementioned device facilitates the trimming of rough edges on irregularly shaped plastic parts such as the body of the rocking car, making the edges and surfaces of the plastic parts smooth and rounded, which greatly improves safety during use.
[0042] like Figures 1 to 4 As shown, based on the first embodiment, the present invention provides another specific embodiment as follows:
[0043] like Figure 2 and Figure 3 As shown, the end of the cone-shaped structure is provided with a relief groove 33, and the bottom of the scraper groove on the scraper-shaped partition 32 protrudes beyond the bottom of the relief groove 33. The relief groove 33 can easily accommodate the edge of the rocking car body, so that the area that needs to be repaired can enter the top pressure head 30 to obtain more concentrated heat, which is convenient for local softening and improves the effect of burr repair.
[0044] The scraper-type partition 32 and the top pressure head 30 are detachably connected by means of bolts, snap-fit, pins, interference fit, etc., so that different scraper-type partitions 32 can be replaced according to the needs of use; in a specific real-time mode, both the scraper-type partition 32 and the top pressure head 30 are provided with screw holes, and the scraper-type partition 32 is fastened in the top pressure head 30 by screws.
[0045] Optionally, the top pressure head 30 has a necking structure at the part flush with the middle of the scraper 32 to facilitate the hot air to be ejected in a better flow pattern.
[0046] The end of the pressing head 30 near the mounting sleeve 10 is a circular tube structure for sliding and rotatably connecting with the mounting sleeve 10. The pressing head 30 is provided with an abutment ring 34, and an elastic element 40 is sleeved on the pressing head 30, with one end abutting against the abutment ring 34 and the other end abutting against the mounting sleeve 10. A bearing assembly 41 is provided on the abutment ring 34 and / or the part of the mounting sleeve 10 for abutting against the elastic element 40. This allows the pressing head 30 to rotate while reducing the resistance during rotation.
[0047] like Figure 3 As shown, a sealing element 35 is provided between the top pressure head 30 and the mounting sleeve 10, and the elastic element 40 is an elastic element such as a spring or elastic sleeve; an air collection hood 23 is provided outside the air inlet of the suction housing 20; the air collection hood 23 and the suction housing 20 are detachably connected by means of threaded connection, snap-fit, interference fit, etc., so as to replace the air collection hood 23 with different shapes according to the needs of use. Specifically, the air collection hood 23 can be a conical hood to improve the efficiency of directional air suction and is more suitable for trimming the burrs on flat parts, or it can be a bell-shaped hood to be more suitable for trimming the burrs on the edges. The bell-shaped hood is a spherical structure that can wrap the burrs and leave a gap that allows the plastic parts to pass through, so as to fully absorb and prevent the hot air ejected from the top pressure head 30.
[0048] like Figure 3 As shown, the mounting sleeve 10 includes an outer heat insulation sleeve 11, a sliding cylinder 12, and an expansion sleeve 13. Both the sliding cylinder 12 and the expansion sleeve 13 are located inside the outer heat insulation sleeve 11. The sliding cylinder 12 is slidably engaged with the top pressure head 30. The hot air outlet of the hot air assembly 70 has a tubular structure. The expansion sleeve 13 is used to insert into the hot air outlet and expands upon heating to clamp the hot air outlet. This prevents the mounting sleeve 10 from detaching from the hot air outlet of the hot air assembly 70 during use, thus affecting the performance. Specifically, the expansion sleeve 13 can be made of a material that expands significantly when heated from room temperature to above 200°C.
[0049] Furthermore, the expansion sleeve 13 is also equipped with a heat-conducting component, which includes a heat-collecting mesh 15 and a heat-conducting wire 16. The heat-collecting mesh 15 is located inside the expansion sleeve 13 to absorb heat from the hot air as it passes through. The heat-conducting wire 16 is located inside the expansion sleeve 13 and is thermally connected to the heat-collecting mesh 15 to transfer heat from the heat-collecting mesh 15 to the expansion sleeve 13. This allows the expansion sleeve 13 to heat up quickly and clamp the hot air outlet. When disassembly is required, the hot air component 70 blows cold air, causing the expansion sleeve 13 to cool and contract rapidly, making the hot air outlet easy to disassemble.
[0050] Furthermore, the mounting sleeve 10 also includes a limiting sleeve 14, which is a heat insulation component and is located inside the outer heat insulation sleeve 11 and between the slide cylinder 12 and the expansion sleeve 13. The inner diameter of the limiting sleeve 14 is smaller than the inner diameter of the slide cylinder 12 and the expansion sleeve 13, so as to limit the hot air outlet of the hot air assembly 70 and the top pressure head 30, and reduce the heat transfer between the slide cylinder 12 and the expansion sleeve 13. This not only allows the expansion sleeve 13 to quickly obtain heat expansion, but also reduces the expansion of the slide cylinder 12, so as to avoid affecting the sliding of the top pressure head 30. The heat collection net 15 is located inside the limiting sleeve 14, and the heat conduction wire 16 extends from the limiting sleeve 14 into the expansion sleeve 13 to avoid the heat collection net 15 and the heat conduction wire 16 being affected by the hot air outlet of the hot air assembly 70 and the top pressure head 30.
[0051] Specifically, the slide 12 and the expansion sleeve 13 are fixed inside the outer heat insulation sleeve 11 by means of bolts, snap-fit, pin, interference fit, bonding or welding.
[0052] like Figure 3 As shown, the hot air assembly 70 includes a hot air gun, with both the air inlet and the hot air outlet located on the hot air gun. The rough edge trimming device for the rocking car body also includes a deflector 60, which covers the air inlet of the hot air assembly 70 and is connected to the air duct 50. The deflector 60 has an air inlet, and the air inlet has an air intake adjustment component to control the opening of the air inlet, thereby controlling the amount of air absorbed by the hot air assembly 70 from the outside, and thus adjusting the attraction of the air duct 50 to the gas.
[0053] Furthermore, the deflector 60 has a cylindrical structure, and multiple first air inlets 61 are provided in a ring along the side edge of the deflector 60. The air intake adjustment assembly includes an adjustment ring 62 disposed inside the deflector 60 and an adjustment handle 63 passing through the deflector 60. One end of the adjustment handle 63 is connected to the adjustment ring 62, and the other end extends to the outside of the deflector 60. Multiple second air inlets 64 are provided in a ring along the upper edge of the adjustment ring 62, and the adjustment ring 62 is rotatably disposed inside the deflector 60 so as to rotate under the action of the adjustment handle 63. The movement allows the second air inlet 64 and the first air inlet 61 to overlap to varying degrees, thereby adjusting the air intake volume. The air guide 60 is also provided with an air intake dispersion pipe 65, which is fixedly connected to the air guide 60 and communicates with the air guide pipe 50. The air intake dispersion pipe 65 is located inside the first air inlet 61 and is provided with multiple through holes so that when air is drawn in through the first air inlet 61, the air in the air intake dispersion pipe 65 is driven out by aerodynamics, thereby increasing the suction force of the air guide pipe 50.
[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rocker panel body edge finishing device characterized by, include: A hot air assembly (70) is used to generate hot air and is provided with an air inlet and a hot air outlet; The mounting sleeve (10) is connected to the hot air outlet of the hot air assembly (70); The suction shell (20) is fixedly connected to the mounting sleeve (10) at one end and has an air inlet at the other end. The suction shell (20) has a working chamber (21) inside and an exhaust hole on the suction shell (20). The top pressure head (30) is located in the working chamber (21), and one end is slidably connected to the mounting sleeve (10). The other end is a conical structure. The conical structure passes through the air inlet so that it can block and open the air inlet when sliding. The small end of the conical structure is exposed outside the air inlet. The top pressure head (30) is provided with a hot air channel (31), and the hot air channel (31) is provided with a scraper baffle (32) at the conical structure. The scraper baffle (32) is provided with a scraper groove (321). The scraper baffle (32) contacts the workpiece through the scraper groove (321) to shape the workpiece. An elastic element (40) is provided between the mounting sleeve (10) and the top pressure head (30) to provide the top pressure head (30) with an elastic force to close the air inlet; The air duct (50) is connected at one end to the exhaust port and at the other end to the air inlet of the hot air assembly (70).
2. The swing vehicle body edge trim device of claim 1, wherein: The end of the cone structure is provided with a relief groove (33), and the bottom of the scraper groove on the scraper partition (32) protrudes from the bottom of the relief groove (33).
3. The swing vehicle body edge trim device of claim 2, wherein: The scraper-shaped partition (32) is detachably connected to the top pressure head (30); both the scraper-shaped partition (32) and the top pressure head (30) are provided with screw holes, and the scraper-shaped partition (32) is fastened to the top pressure head (30) by screws.
4. The swing vehicle body edge trim device of claim 1, wherein: The top pressure head (30) has a round tube structure at one end near the mounting sleeve (10) so as to slide and rotate with the mounting sleeve (10). The top pressure head (30) is provided with an abutment ring (34). The elastic element (40) is sleeved on the top pressure head (30), with one end abutting against the abutment ring (34) and the other end abutting against the mounting sleeve (10). The abutment ring (34) and / or the part of the mounting sleeve (10) used to abut against the elastic element (40) are provided with a bearing assembly (41).
5. The swing vehicle body edge trim device of claim 4, wherein: A sealing element (35) is provided between the top pressure head (30) and the mounting sleeve (10), and the elastic element (40) is a spring or an elastic sleeve; an air collection hood (23) is provided outside the air inlet of the air intake shell (20); the air collection hood (23) is detachably connected to the air intake shell (20).
6. The swing vehicle body edge finishing device of claim 1 or 4, wherein: The mounting sleeve (10) includes an outer heat insulation sleeve (11), a sliding cylinder (12) and an expansion sleeve (13). The sliding cylinder (12) and the expansion sleeve (13) are both located inside the outer heat insulation sleeve (11). The sliding cylinder (12) is slidably engaged with the top pressure head (30). The hot air outlet of the hot air assembly (70) is a tubular structure. The expansion sleeve (13) is used to insert into the hot air outlet and expands after being heated to clamp the hot air outlet.
7. The swing vehicle body edge trim device of claim 6, wherein: The expansion sleeve (13) is also provided with a heat-conducting component, which includes a heat-collecting mesh (15) and a heat-conducting wire (16). The heat-collecting mesh (15) is located inside the expansion sleeve (13) to absorb heat from the hot air when it passes through. The heat-conducting wire (16) is located inside the expansion sleeve (13) and is thermally connected to the heat-collecting mesh (15) to transfer heat from the heat-collecting mesh (15) to the expansion sleeve (13).
8. The swing vehicle body edge trim device of claim 7, wherein: The mounting sleeve (10) also includes a limiting sleeve (14), which is a heat insulation component and is located inside the outer heat insulation sleeve (11) and between the slide cylinder (12) and the expansion sleeve (13). The inner diameter of the limiting sleeve (14) is smaller than the inner diameter of the slide cylinder (12) and the expansion sleeve (13) to limit the hot air outlet of the hot air assembly (70) and the top pressure head (30) and reduce the heat transfer between the slide cylinder (12) and the expansion sleeve (13). The heat collection net (15) is provided inside the limiting sleeve (14), and the heat-conducting wire (16) extends from the limiting sleeve (14) into the expansion sleeve (13).
9. The swing vehicle body edge trim device of claim 1, wherein: The hot air assembly (70) includes a hot air gun, and the air inlet and the hot air outlet are both located on the hot air gun. The rocking car body rough edge trimming device also includes a guide shroud (60), which covers the air inlet of the hot air assembly (70) and is connected to the air duct (50). The guide shroud (60) is provided with an air inlet, and the air inlet is provided with an air intake adjustment assembly to control the opening degree of the air inlet.
10. The swing vehicle body edge trim device of claim 9, wherein: The air intake shroud (60) is a cylindrical shroud structure. Multiple first air intake holes (61) are circumferentially arranged along the side edge of the air intake shroud (60). The air intake adjustment assembly includes an adjustment ring (62) disposed inside the air intake shroud (60) and an adjustment handle (63) passing through the air intake shroud (60). One end of the adjustment handle (63) is connected to the adjustment ring (62), and the other end extends to the outside of the air intake shroud (60). Multiple second air intake holes (64) are circumferentially arranged on the adjustment ring (62), and the adjustment ring (62) is rotatably disposed inside the air intake shroud (60) to be adjusted by the adjustment handle (63). The downward rotation allows the second air inlet (64) and the first air inlet (61) to overlap to varying degrees, thereby adjusting the air intake volume. The air guide shroud (60) is also provided with an air intake dispersion tube (65), which is fixedly connected to the air guide shroud (60) and communicates with the air guide tube (50). The air intake dispersion tube (65) is located inside the first air inlet (61) and is provided with multiple through holes so that when air is drawn in through the first air inlet (61), the air in the air intake dispersion tube (65) is driven out by aerodynamics, thereby increasing the suction force of the air guide tube (50).