Hot air heating structure for shape-following deflashing of lampshade and deflashing method

Abstract

The invention belongs to the technical field of automobile lampshade production, and particularly relates to a hot air heating structure for lampshade follow-up deflashing and a deflashing method.The hot air heating structure comprises an air nozzle, the bottom end of the air nozzle is detachably connected with a hot air gun, and the hot air gun is used for conveying hot air into the air nozzle; the tuyere is arranged on one side of the lampshade, and the tuyere can move to the lampshade in the horizontal direction; the bottom end of the rear cover sleeves the top end of the hot air gun; one end of the flow guide piece is connected with the end part of the rear cover; the side wall of the fusion plate is connected with the other end of the rear cover; the rear cover is communicated with the flow guide piece; the flow guide part and the fusion plate are arc-shaped and are matched with the lampshade in shape, and a flow guide groove matched with the flash of the lampshade is formed in the fusion plate; by arranging the tuyere, hot air is blown out according to the contour of the flash, so that the flash is removed.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive lamp housing production, and particularly relates to a hot air heating structure and a flash removal method for following the shape of a lamp housing to remove flash. Background Art

[0002] When the lamp housing is injection-molded from the mold, there should be no obvious protrusion of the flash residue at the parting surface. If the flash is sharp enough to cut hands, the part is regarded as unqualified and the flash needs to be processed.

[0003] Currently, for removing the flash of the lamp housing, two sets of linear motors and guide rail modules move in the X and Y axis directions, and then the main manipulator is used for the movement in the Z axis direction. The combination realizes the movement in the three-dimensional space, simulates the trajectory of the parting line, and fixes the hot air gun on it to heat the flash. For a through-type lamp housing mold with two cavities, four sets of such servo systems and four sets of hot air guns are required, resulting in complex debugging, high difficulty, and high cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a hot air heating structure and a flash removal method for following the shape of a lamp housing to remove flash, so as to solve the technical problems of high cost and high difficulty in removing the flash of the lamp housing in the existing solution, and achieve the purpose of reducing the debugging difficulty and use cost by designing an air duct that simulates the flash trajectory to blow hot air to remove the flash.

[0005] To solve the above technical problems, the present invention provides a hot air heating structure for following the shape of a lamp housing to remove flash, including:

[0006] A nozzle, the bottom end of the nozzle is detachably connected with a hot air gun, and the hot air gun is used for conveying hot air into the nozzle;

[0007] A lamp housing, the nozzle is arranged on one side of the lamp housing, and the nozzle can move horizontally to the lamp housing;

[0008] The nozzle includes: a rear cover sleeved on the top end of the hot air gun at the bottom end, a guiding member with one end connected to the end of the rear cover, and a fusion plate with the side wall connected to the other end of the rear cover;

[0009] The rear cover is communicated with the guiding member; both the guiding member and the fusion plate are arc-shaped and match the shape of the lamp housing, and a guiding groove matching the flash of the lamp housing is opened on the fusion plate.

[0010] Furthermore, it is characterized in that one end of the guiding member in an arc shape is connected to the fusion plate, a first cavity is opened at the end of the guiding member far from the fusion plate; a second cavity is opened at the end of the guiding member close to the fusion plate;

[0011] The flow guide member is provided with a plurality of diversion holes, and the plurality of diversion holes all penetrate through the first cavity and the second cavity. The plurality of diversion holes are arranged in an arc shape and match the flange of the lamp cover.

[0012] Further, the rear cover includes: a cover plate with one side connected to the flow guide member and a sleeve block with its side wall connected to the other side of the cover plate;

[0013] The sleeve block and the cover plate are communicated through a through hole, and the cover plate is communicated with the first cavity through the through hole.

[0014] Further, the hot air gun includes: a barrel vertically sleeved at the bottom end of the sleeve block and a housing arranged on the outer wall of the barrel. The barrel is communicated with the sleeve block.

[0015] Further, a connection assembly is installed on the outer wall of the housing. The connection assembly includes: a first connecting member vertically arranged and connected to the outer wall of the housing and a base with its top end movably connected to the bottom end of the first connecting member.

[0016] Further, a slide table cylinder is horizontally arranged at the top end of the base. The output end of the slide table cylinder is connected to the first connecting member and moves along the horizontal direction;

[0017] The top end of the slide table cylinder is connected to the end of the first connecting member away from the housing through a second connecting member.

[0018] Further, fixing brackets are detachably arranged at both ends of the lamp cover, and the lamp cover is arranged at the top end of the fixing brackets.

[0019] A method for removing the flange, using a hot air heating structure for removing the flange along the shape of the lamp cover as described in any one of the above, includes the following steps:

[0020] S1. By performing a copy design on the shape of the flow guide member and the fusion plate for the flange of the lamp cover, making it match the flange;

[0021] S2. By performing heat analysis through software, designing the size and position of the diversion holes to make the diversion holes match the flange;

[0022] S3. Pass gas with a pressure of 0.1 MPa through the hot air gun and power it on. Adjust the temperature of the hot air gun to 400 °C. Place this structure in a positioning tooling and approach the flange of the lamp cover;

[0023] S4. Start the slide cylinder. The slide cylinder drives the first connecting piece, the hot air gun and the nozzle to move horizontally to the flash edge. The hot air of the hot air gun enters the first cavity through the through hole. The hot air is fused and split in the first cavity. The split hot air enters the second cavity through the split hole for secondary splitting. After being fused in the second cavity, the hot air is fused again on the fusion plate and blown out through the diversion groove. At this time, the hot air is consistent with the flash edge contour, thus achieving the effect of removing the flash edge.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. By setting the diversion piece and the fusion plate in the present invention, the hot air blown out by the hot air gun enters the diversion piece, and the hot air is blown out through the first cavity, the split hole and the second cavity in sequence. Since one end of the diversion piece and the fusion plate is consistent with the flash edge contour, the hot air is fused multiple times and changes from multiple dots to linear hot air consistent with the fusion plate contour, and is blown out from the fusion plate, that is, the hot air is consistent with the flash edge contour to remove the flash edge; different flash edges are removed by replacing the nozzle, and the cost of the nozzle is lower than that of the servo system, thus reducing the cost of removing the flash edge.

[0026] 2. By setting the slide cylinder in the present invention, the slide cylinder drives the nozzle to move linearly, so that the hot air approaches the flash edge of the lampshade, thereby removing the flash edge. There is no need for the complex movement of the linear motor, the guide rail module and the manipulator, and the operation steps are simple, reducing the debugging difficulty and complexity.

[0027] To make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, is described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 is a schematic structural diagram of a hot air heating structure and a flash edge removing method for conforming to the shape of a lampshade according to the present invention;

[0030] Figure 2 is a schematic structural diagram of the nozzle, the hot air gun and the connecting component of the present invention;

[0031] Figure 3 is Figure 2 the structural explosion diagram of;

[0032] Figure 4 is the structural explosion diagram of the nozzle of the present invention;

[0033] Figure 5 is a schematic structural view of the flow guide member of the present invention;

[0034] Figure 6 is Figure 5 the right view of

[0035] In the figure:

[0036] 1. Air nozzle; 11. Rear cover; 111. Sleeve block; 112. Cover plate; 12. Flow guide member; 121. First cavity; 122. Second cavity; 123. Shunt hole; 13. Fusion plate; 131. Flow guide groove; 2. Hot air gun; 21. Barrel; 22. Housing; 3. Slide table cylinder; 4. Connection assembly; 41. First connector; 42. Second connector; 43. Base; 5. Lamp cover; 6. Fixing bracket. Specific embodiments

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] As Figures 1 to 6 shown, a hot air heating structure and a flash removal method for a lamp cover to follow the shape to remove flash include: an air nozzle 1 and a lamp cover 5. The air nozzle 1 is arranged on one side of the lamp cover 5, and the air nozzle 1 can be horizontally moved to the lamp cover 5; the bottom end of the air nozzle 1 is detachably connected with a hot air gun 2, and the hot air gun 2 is used to convey hot air into the air nozzle 1; there is flash remaining on the parting surface after the lamp cover 5 is injection molded from the mold. The air nozzle 1 is horizontally moved to the flash of the lamp cover 5, and the hot air gun 2 conveys hot air through the air nozzle 1 to the flash to remove the flash.

[0040] As Figure 4 shown, the air nozzle 1 includes: a rear cover 11 sleeved on the top end of the hot air gun 2 at the bottom end, a flow guide member 12 connected to one end of the rear cover 11, and a fusion plate 13 with its side wall connected to the other end of the rear cover 11; the rear cover 11 is communicated with the flow guide member 12, and the hot air sprayed by the hot air gun 2 enters the rear cover 11 and then enters the flow guide member 12; both the flow guide member 12 and the fusion plate 13 are arc-shaped and match the shape of the lamp cover 5, and a flow guide groove 131 matching the flash of the lamp cover 5 is opened on the fusion plate 13.

[0041] It should be noted that the deflector 12 and the fusion plate 13 are matched with the lamp cover 5, which facilitates the horizontal movement of the nozzle 1 to the lamp cover 5 for flash removal, avoiding shape mismatch and preventing hot air from reaching the flash. The shape of the diversion groove 131 is consistent with the flash contour and the position is matched, so that the hot air can accurately reach the flash, improving the flash removal efficiency.

[0042] As Figure 5 and Figure 6 shown, one end of the deflector 12 in an arc shape is connected to the fusion plate 13, the deflector 12 is attached to the fusion plate 13, and a first cavity 121 is formed at one end of the deflector 12 away from the fusion plate 13, that is, the first cavity 121 is close to the rear cover 11, and the hot air enters the first cavity 121 through the rear cover 11; a second cavity 122 is formed at one end of the deflector 12 close to the fusion plate 13, and the first cavity 121 and the second cavity 122 are connected, and the hot air enters the second cavity 122 from the first cavity 121.

[0043] In this embodiment, the deflector 12 is provided with a plurality of shunt holes 123, and the plurality of shunt holes 123 all penetrate through the first cavity 121 and the second cavity 122. The hot air enters the second cavity 122 through the shunt holes 123 in the first cavity 121, and the hot air is fused multiple times in the first cavity 121 and the second cavity 122; the plurality of shunt holes 123 are arranged in an arc shape and are matched with the flash of the lamp cover 5. At this time, the hot air enters the second cavity 122 from the shunt holes 123, and the hot air is distributed according to the contour shape of the lamp cover 5, and the hot air is in the form of a chain formed by multiple points.

[0044] In this embodiment, the rear cover 11 includes: a cover plate 112 connected to one side of the deflector 12 and a sleeve block 111 whose side wall is connected to the other side of the cover plate **********; the sleeve block 111 and the cover plate 112 are connected through a through hole, and the cover plate 112 is connected to the first cavity 121 through the through hole; the hot air blown out by the hot air gun 2 enters the deflector 12 from the through hole, passes through the sleeve block 111, the cover plate 112 and the first cavity 121 in sequence, and the hot air is fused and shunted in the first cavity 121 and then enters the second cavity 122 through the shunt holes 123 for re-fusion.

[0045] It should be noted that the hot air blown out by the hot air gun 2 enters the deflector 12, and the hot air is blown out through the first cavity 121, the shunt holes 123 and the second cavity 122 in sequence. Since one end of the deflector 12 and the fusion plate 13 is consistent with the flash contour, the hot air changes from multiple dots to linear hot air consistent with the contour of the fusion plate 13 after multiple fusions and is blown out from the fusion plate 13, that is, the hot air is consistent with the flash contour to remove the flash; by replacing the nozzle 1, different flashes can be removed, and the cost of the nozzle 1 is lower than that of the servo system, thus reducing the cost of flash removal.

[0046] Embodiment 2:

[0047] As Figure 3 It should be noted that in the translation of the content from line 13, there seems to be an incomplete expression in the original text where "**********" is presented. The translation is made based on the existing content as accurately as possible. If there are any specific corrections or additional information for this part, it can be further adjusted.As shown, on the basis of Embodiment 1, the hot air gun 2 includes: a barrel 21 vertically sleeved at the bottom end of the sleeve block 111 and a housing 22 arranged on the outer wall of the barrel 21, and the barrel 21 is communicated with the sleeve block 111; the hot air gun 2 is a commonly used welding tool in the prior art, and the hot air gun 2 mainly uses the hot air blown out by the gun core of the internal heating resistance wire to weld and pick components; the hot air blown out by the hot air gun 2 enters the sleeve 111 and then blows out through the nozzle 1 to remove the flash of the lamp cover 5.

[0048] Among them, a connection component 4 is installed on the outer wall of the housing 22. The connection component 4 includes: a first connecting piece 41 vertically arranged and connected to the outer wall of the housing 22 and a base 43 whose top end is movably connected to the bottom end of the first connecting piece 41. The base 43 is connected to the hot air gun 2 and the nozzle 1 through the first connecting piece 41. By installing the base 43 in the positioning tooling beside the lamp cover 5, the hot air gun 2 and the nozzle 1 are positioned.

[0049] In this embodiment, a slide table cylinder 3 is horizontally arranged at the top end of the base 43. The output end of the slide table cylinder 3 is connected to the first connecting piece 41 and moves along the horizontal direction. The slide table cylinder 3 is arranged between the base 43 and the first connecting piece 41; the top end of the slide table cylinder 3 is connected to the end of the first connecting piece 41 far from the housing 22 through a second connecting piece 42. The second connecting piece 42 is arranged between the slide table cylinder 3 and the first connecting piece 41. The second connecting piece 42 further provides a supporting force to ensure the stability between the slide table cylinder 3 and the first connecting piece 41, and avoid the deviation of the flash precision caused by the slipping of the nozzle 1 during the working process.

[0050] It should be noted that the slide table cylinder 3 drives the nozzle 1 to do a linear motion, so that the hot air is close to the flash of the lamp cover 5, thereby removing the flash. There is no need for the complex motion of a linear motor, a guide rail module and a manipulator. The operation steps are simple, and the debugging difficulty and complexity are reduced.

[0051] Embodiment 3:

[0052] As Figure 1 shown, on the basis of Embodiment 1, fixing frames 6 are detachably arranged at both ends of the lamp cover 5. The lamp cover 5 is arranged at the top end of the fixing frames 6, and the lamp cover 5 is arranged in the fixing frames 6 to avoid the error of precision caused by the shaking of the lamp cover 5 during flash removal. The fixing frames 6 can be equipped with positioning tooling to fix the base 43.

[0053] It should be noted that: the flow guiding member 12 and the fusion plate 13 in the nozzle 1 need to be profiled according to the flash of the lamp cover 5 first, and their shapes are designed, and then heat analysis simulation is carried out through heat analysis software such as FloTHERM, ICEPAK, FloEFD, etc. This step is common knowledge and a commonly used means in the technical field. By heat analysis simulation, the spacing and size of the diversion holes are designed to make the temperature of the hot air blown out uniform, and the heat analysis simulation enables the hot air to reach the required temperature.

[0054] In summary, by profiling the shapes of the flow guide member 12 and the fusion plate 13 to match the flash of the lamp cover 5, and then performing heat analysis through software to design the size and position of the diversion holes 123 to match the flash. Then, supply air at a pressure of 0.1 MPa to the hot air gun 2 and power it on, adjust the temperature of the hot air gun 2 to 400 °C, and place this structure in the positioning tooling and close to the flash of the lamp cover 5. Finally, start the slide cylinder 3, and the slide cylinder 3 drives the first connecting member 41, the hot air gun 2 and the nozzle 1 to move horizontally to the flash. The hot air of the hot air gun 2 enters the first cavity 121 through the through hole, the hot air is fused and diverted in the first cavity 121, and the diverted hot air enters the second cavity 122 through the diversion holes 123 for secondary diversion. After the hot air is fused in the second cavity 122, it is fused again on the fusion plate 13 and blown out through the diversion groove 131. At this time, the hot air is consistent with the contour shape of the flash, thus achieving the effect of removing the flash. When removing other flashes, replace the matching nozzle 1 and repeat the above steps.

[0055] All the components selected in this application are common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0056] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hot air heating structure for removing flash along the shape of a lampshade, characterized in that, Including: A nozzle (1), the bottom end of the nozzle (1) is detachably connected to a hot air gun (2), and the hot air gun (2) is used to convey hot air into the nozzle (1); A lamp cover (5), the nozzle (1) is arranged on one side of the lamp cover (5), and the nozzle (1) can be moved horizontally onto the lamp cover (5); The nozzle (1) includes: a rear cover (11) sleeved at the top end of the hot air gun (2), a flow guide member (12) with one end connected to the end of the rear cover (11), and a fusion plate (13) with the side wall connected to the other end of the rear cover (11); The rear cover (11) is communicated with the flow guide member (12); both the flow guide member (12) and the fusion plate (13) are arc-shaped and match the shape of the lamp cover (5), and a flow guide groove (131) matching the flange of the lamp cover (5) is formed on the fusion plate (13).

2. The hot air heating structure for trimming the flash along the shape of the lampshade according to claim 1, wherein, One arc-shaped end of the flow guide member (12) is connected to the fusion plate (13), and a first cavity (121) is formed at the end of the flow guide member (12) away from the fusion plate (13); a second cavity (122) is formed at the end of the flow guide member (12) close to the fusion plate (13); The flow guide member (12) is provided with a plurality of shunt holes (123), and all the plurality of shunt holes (123) penetrate through the first cavity (121) and the second cavity (122), and the plurality of shunt holes (123) are arranged in an arc shape and match the flange of the lamp cover (5).

3. A hot air heating structure for trimming flash on a lamp shade according to the shape of the lamp shade as described in claim 2, characterized in that, The rear cover (11) includes: a cover plate (112) with one side connected to the flow guide member (12) and a sleeve block (111) with the side wall connected to the other side of the cover plate (112); The sleeve block (111) is communicated with the cover plate (112) through a through hole, and the cover plate (112) is communicated with the first cavity (121) through the through hole.

4. The hot air heating structure for trimming the flash along the shape of a lampshade according to claim 3, wherein The hot air gun (2) includes: a barrel (21) vertically sleeved at the bottom end of the sleeve block (111) and a housing (22) arranged on the outer wall of the barrel (21), and the barrel (21) is communicated with the sleeve block (111).

5. The hot air heating structure for trimming the flash along the shape of a lampshade according to claim 4, wherein, A connection assembly (4) is installed on the outer wall of the housing (22), and the connection assembly (4) includes: a first connecting member (41) vertically arranged and connected to the outer wall of the housing (22) and a base (43) with the top end movably connected to the bottom end of the first connecting member (41).

6. The hot air heating structure for the lamp shade to follow the shape and remove flash as described in claim 5, characterized in that, A sliding table cylinder (3) is horizontally arranged at the top end of the base (43), and the output end of the sliding table cylinder (3) is connected to the first connecting member (41) and moves along the horizontal direction; The top end of the sliding table cylinder (3) is connected to the end of the first connecting member (41) away from the housing (22) through a second connecting member (42).

7. The hot air heating structure for the lamp shade to trim flash according to the shape thereof as described in claim 1, wherein, Fixing brackets (6) are detachably arranged at both ends of the lamp cover (5), and the lamp cover (5) is arranged at the top end of the fixing brackets (6).

8. A flash removal method, which uses a hot air heating structure for conformal flash removal of a lampshade as described in any one of claims 1 to 7, characterized in that, Including the following steps: S1. By imitating the shape of the flange of the lamp cover (5) to design the shapes of the flow guide member (12) and the fusion plate (13) to make them match the flange; S2. Perform heat analysis through software, design the size and position of the shunt holes (123) so that the shunt holes (123) match the flash; S3. Supply air to the hot air gun (2) at a pressure of 0.1 MPa and power it on. Adjust the temperature of the hot air gun (2) to 400 °C. Place this structure in the positioning tooling and close to the flash of the lamp cover (5); S4. Start the slide cylinder (3). The slide cylinder (3) drives the first connecting piece (41), the hot air gun (2) and the nozzle (1) to move horizontally to the flash. The hot air of the hot air gun (2) enters the first cavity (121) through the through hole. The hot air is fused and shunted in the first cavity (121). The shunted hot air enters the second cavity (122) through the shunt holes (123) for secondary shunting. After fusing in the second cavity (122), the hot air is fused again on the fusion plate (13) and blown out through the diversion groove (131). At this time, the hot air is consistent with the contour shape of the flash, thus achieving the effect of removing the flash.

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