A hanger for spraying paint on an ultra-long type paint spraying decorative strip

Abstract

The utility model relates to a kind of hangers for super-long type paint spraying decorative strip spraying, including fixed support and several spraying hangers, fixed support contains upper and lower fixed support, spraying hanger is detachably arranged between the two. Upper and lower fixed support are provided with several clamping plates;Spraying hanger includes hanger frame, shielding plate, and several hanging point reinforcing plates are arranged between shielding plate and hanger frame;Super-long type paint spraying decorative strip is evenly provided with several buckles on both sides, spraying hanger is connected with fixed support clamping plate through hanging point reinforcing plate, and super-long type paint spraying decorative strip is connected with hanging point reinforcing plate through buckle, and is vertically hung on shielding plate.Compared with prior art, the utility model can solve the technical problems of disorderly deformation of super-long type paint spraying decorative strip, difficulty in operating upper and lower piece process caused by one vehicle multiple hanging, and dependence on manual pasting shielding tape.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a hanger for spraying extra-long paint trim strips. Background Technology

[0002] In the fields of automotive parts and home decoration, the application of extra-long PP material spray-painted trim strips is becoming increasingly widespread. However, its coating process still faces significant technical bottlenecks. The core problem lies in the design defects of existing conventional spraying fixtures and the mismatch between them and the characteristics of this type of trim strip, making it difficult to balance production efficiency and quality.

[0003] The current conventional design of spray painting fixtures generally adopts a structure in which the trim strips are laid horizontally with the painted surface facing outwards. However, PP material itself has a certain degree of thermoplasticity and flexibility, and its extra-long size (usually exceeding 1200mm in length) further amplifies the physical defects of the material. During the spraying process, the horizontally laid trim strips are susceptible to uncontrollable and disordered deformation due to the combined effects of baking temperature, paint mist impact, and their own weight. This can lead to uneven paint film thickness, runs, and other appearance defects, or even directly cause the trim strip structure to fail, significantly increasing the defect rate.

[0004] At the same time, this design brings great inconvenience to production operations: the process of loading and unloading the extra-long trim strips requires the cooperation of multiple operators, which is difficult and time-consuming. Especially in the batch production mode of "one vehicle with multiple trailers", the inefficiency of loading and unloading operations will directly cause production interruption and waiting in the painting line, seriously disrupting the continuous production rhythm of the painting line, significantly restricting the overall capacity of the production line, and failing to meet the efficiency requirements of large-scale industrial production.

[0005] Furthermore, conventional painting fixtures also have shortcomings in masking and protection. During the assembly of extra-long PP trim strips, some areas require space for tape application or welding processes. To prevent paint mist from contaminating these critical areas during spraying, the back of the trim strip usually needs to be masked. However, the existing fixture design cannot achieve masking without tape, and manual application of masking tape is necessary. This not only increases the complexity of the process and labor costs, but may also lead to masking failure due to tape application errors, further affecting processing quality and consistency.

[0006] Patent CN 222842330 U discloses a back-masking spray painting hanger, which involves placing a laser-cut stainless steel plate on a crank and a support rod to form a spray painting hanger. Then, the hanger is placed on the stainless steel plate and attached to the end of the stainless steel plate to mask the adhesive path before spraying. This method is time-saving and labor-saving, and the height is adjustable, making it quite practical. However, this spray painting hanger still cannot solve the problems of disordered deformation during the spraying of ultra-long PP material trim strips and the difficulty of loading and unloading parts when multiple parts are hung on one vehicle. Utility Model Content

[0007] The purpose of this utility model is to provide a hanger for spraying ultra-long paint trim strips, which solves the technical problems of disordered deformation of ultra-long paint trim strips, difficulty in loading and unloading operations caused by multiple hangers on one vehicle, and reliance on manual application of masking tape.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A mounting bracket for spraying extra-long paint trim strips includes a fixed bracket mounted on a painting trolley and several spraying brackets for hanging the extra-long paint trim strips. The fixed bracket includes an upper fixed bracket and a lower fixed bracket, and the spraying brackets are detachably and vertically arranged between the upper fixed bracket and the lower fixed bracket.

[0010] The upper and lower fixed brackets are each equipped with several clamping plates. The spraying fixture includes a fixture frame and a shielding plate set on the fixture frame. Several hanging point reinforcing plates are set between the shielding plate and the fixture frame. The hanging point reinforcing plates are parallel to each other and evenly spaced along the length of the spraying fixture. Several buckles are evenly spaced on both sides of the extra-long paint trim strip along its length. The spraying fixture is engaged with the clamping plates of the fixed bracket through the hanging point reinforcing plates. The extra-long paint trim strip is engaged with the hanging point reinforcing plates through the buckles and is vertically hung on the shielding plate.

[0011] Preferably, the fixed bracket includes a frame, the frame having a gate-shaped structure, the gate-shaped structure including a transverse connecting rod and two longitudinal connecting rods, the two longitudinal connecting rods being parallel to each other and respectively perpendicularly disposed at the two ends of the transverse connecting rod, a clamping plate mounting rod being disposed between the ends of the two longitudinal connecting rods, the clamping plates being disposed on the clamping plate mounting rod and evenly spaced along the length direction of the clamping plate mounting rod, and each longitudinal connecting rod having a clamping foot for connecting with the painting trolley at one end connected to the transverse connecting rod.

[0012] Preferably, the length of the longitudinal connecting rod of the upper fixed bracket is less than the length of the longitudinal connecting rod of the lower fixed bracket, and a fixed bracket reinforcing rod is provided between each longitudinal connecting rod and the end of the card plate mounting rod on the same side.

[0013] More preferably, the frame is welded from square iron pipes with dimensions of 30mm*30mm and a thickness of 2.0mm.

[0014] More preferably, the card plate is welded to the frame, and the spacing in the width direction is the same, which is used to fix and support the spraying hanger.

[0015] Preferably, the hanging frame includes two parallel and spaced vertical rods, each with a corresponding shielding plate. The shielding plate is a straight, elongated plate structure. Each shielding plate is parallel to and spaced apart from the corresponding vertical rod. Each vertical rod and the corresponding shielding plate are connected by several hanging reinforcement rods, which are parallel to each other and spaced apart along the length of the vertical rod.

[0016] More preferably, each of the shielding panels can be fitted with an extra-long painted trim strip.

[0017] More preferably, the shielding plate is used to support the extra-long painted trim strip.

[0018] More preferably, the masking plate is attached to the back of the extra-long spray-painted trim strip, which can play a role in masking paint mist during the spraying process, thereby replacing the masking process of the back of the extra-long spray-painted trim strip with adhesive tape.

[0019] More preferably, the shielding plate is made using a laser cutting process.

[0020] Preferably, the hanging point reinforcement plate includes a bent portion, which includes a first bent section and a second bent section connected to each other. Two through holes are provided at the connection between the first bent section and the second bent section, which are respectively used to connect with the two vertical long rods of the hanging frame. Two support arms are provided at both ends of the second bent section, and a positioning protrusion is provided at the end of each support arm. A number of positioning holes are evenly spaced along the length of the shielding plate, and each positioning hole corresponds one-to-one with the positioning protrusion on each hanging point reinforcement plate. The end of each support arm is also provided with a slot for engaging with the buckle on the extra-long painted trim strip.

[0021] More preferably, the hanging point reinforcing plate is welded to the shielding plate, the positioning hole is a welded positioning hole, and the positioning protrusion is a welded positioning protrusion.

[0022] Preferably, the hanging point reinforcing plate is disposed between two adjacent hanging rod reinforcing bars. The hanging point reinforcing plate includes several first hanging point reinforcing plates, two second hanging point reinforcing plates, and two hanging rod fixing plates. The two second hanging point reinforcing plates are respectively located at both ends of the spraying hanger along its length direction. The two hanging rod fixing plates are respectively located near both ends of the spraying hanger. The spraying hanger is engaged with the clamping plates of the upper fixing bracket and the lower fixing bracket respectively through the two hanging rod fixing plates. The bent part of the hanging rod fixing plate is engaged with the clamping plate.

[0023] Preferably, in the first hanging point reinforcing plate and the hanging fixture fixing plate, a first slot is provided on the outer side of the end of each of the support arms, and the width of the first bent section of the hanging fixture fixing plate is greater than the width of the first hanging point reinforcing plate and the second hanging point reinforcing plate.

[0024] More preferably, the width of the first bent section of the hanger fixing plate needs to be sufficient to engage it with the clamping plate of the fixing bracket.

[0025] More preferably, an identification layer is provided on the first bent section of the hanging fixture fixing plate.

[0026] Preferably, in the second hanging point reinforcing plate, a second slot is provided on each side of the positioning protrusion.

[0027] Preferably, in the second hanging point reinforcing plate, each of the support arms is further provided with a mounting hole at its end, and a reinforcing column is provided in the mounting hole.

[0028] More preferably, the hanger reinforcement rod is designed between the reinforcement plates of two adjacent hanging points to strengthen the connection between the shielding plate and the hanger frame.

[0029] More preferably, the hanging point reinforcement plate is used to fix the extra-long painted trim strip to the masking plate, and at the same time connects the masking plate and the hanging frame.

[0030] More preferably, the hanging point reinforcement plate is made using laser cutting technology, which effectively ensures the fit between the buckle structure of the extra-long painted trim and the groove of the hanging point reinforcement plate, better securing the extra-long painted trim to the masking plate, effectively preventing paint mist from adhering to the back of the product, and achieving the purpose of masking without tape.

[0031] Preferably, the number of clamps in each fixed bracket is set to 8.

[0032] Preferably, the length of the extra-long painted trim strip is greater than 1200mm.

[0033] Preferably, the material of the extra-long painted trim strip includes PP material.

[0034] More preferably, the painting trolley includes two sides, and the extra-long paint trim spraying hangers can be installed on both sides of the painting trolley.

[0035] More preferably, by reducing the distance between the two extra-long paint trim products on the spraying hanger and simultaneously reducing the distance between the plates on the fixed bracket, the number of spraying hangers installed on the fixed bracket can be increased, the number of paint products per vehicle can be increased, and manufacturing costs can be further reduced.

[0036] In practical use, this utility model uses a clip design to install the upper and lower fixed brackets on the same side of the painting trolley. Based on the painting requirements of the extra-long paint strips, the bending part of the hanging point reinforcing plate engages with the clip plate of the fixed bracket, allowing one or more painting hangers to be freely combined with the fixed brackets, thus fixing the painting hangers between the upper and lower fixed brackets. The extra-long paint strip's own snap-fit ​​structure and the hanging point reinforcing plate's slot structure form a snap-fit ​​connection, allowing the extra-long paint strip to be hung on the masking plate, ensuring the back of the paint strip is tightly against the masking plate, after which painting operations can begin.

[0037] In this invention, the extra-long paint strip itself has several buckle structures along its length, and the spraying hanger has several hanging point reinforcing plates corresponding to its length. Through the snap-fit ​​structure and the hanging point reinforcing plates, the entire extra-long paint strip can be tightly attached to the masking plate. With the help of the masking plate and the back of the extra-long paint strip, the paint mist can be effectively prevented from adhering to the back of the strip, achieving a masking effect without tape, replacing the tape masking process in the traditional spraying process, and significantly reducing manufacturing costs.

[0038] In this invention, the shielding plate is a straight, long strip-shaped structure and is vertically arranged. The extra-long paint strip is vertically hung on the shielding plate. Even if the extra-long paint strip is made of soft PP material, it can ensure that it shrinks in an orderly manner along a straight line during the painting process, thereby avoiding disorderly deformation of the product.

[0039] In this invention, if the number of clamps on the fixed bracket is set to 8, when the fixed bracket is fully loaded with spray painting fixtures, the painting trolley can support 8 spray painting fixtures on one side. Each spray painting fixture can hold 2 extra-long paint trim strips. Therefore, when arranged on both sides, a single trolley can paint 32 extra-long paint trim strips. Simultaneously, during the painting process, because the individual spray painting fixtures and the clamps on the fixed bracket are designed with a one-to-one detachable connection, the loading and unloading operations can be completed right next to the painting line without shutting down the painting line. This effectively solves the problem of excessive loading and unloading time caused by multiple fixtures on a single trolley in the prior art.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) The extra-long paint trim spraying fixture provided by this utility model consists of a fixed bracket and a spraying fixture. The fixed bracket is equipped with a clamping plate, and the spraying fixture includes a masking plate and a hanging point reinforcing plate. The spraying fixture is installed by the snap-fit ​​between the hanging point reinforcing plate and the clamping plate of the fixed bracket. The extra-long paint trim is then hung on the masking plate by its own snap-fit ​​and the snap-fit ​​between the hanging point reinforcing plate. This structural design can specifically solve the pain points of existing technologies, such as the easy disorderly deformation of extra-long paint trim, the difficulty of loading and unloading parts due to multiple hanging on a single vehicle, and the reliance on manual application of masking tape.

[0042] (2) In this utility model, through the interlocking design of the slots of several hanging point reinforcing plates and the buckles of the extra-long paint strip itself, the extra-long paint strip can be firmly fixed on the masking plate, and the back of the extra-long paint strip can be tightly attached to the masking plate, thereby effectively preventing paint mist from adhering to the back of the strip, achieving a masking effect without tape, replacing the tape masking process in the traditional spraying process, and significantly reducing manufacturing costs.

[0043] (3) In this utility model, the shielding plate is a straight long strip plate structure, and the extra-long spray paint strip is vertically hung on the shielding plate, which can ensure that the extra-long PP spray paint strip with a relatively soft texture shrinks in an orderly manner along the straight line during the coating process, and avoids its disorderly deformation.

[0044] (4) In this utility model, the single spraying hanger and the card plate of the fixed bracket adopt a one-to-one detachable connection design. The spraying hanger can be locked onto the card plate of the fixed bracket through the bending part of the hanging point reinforcing plate. Therefore, during the painting process, there is no need to shut down the painting line. The single spraying hanger can be directly removed from the side of the production line to complete the loading and unloading operation, which effectively solves the problem of excessive loading and unloading time caused by multiple hangers on a single vehicle in the prior art.

[0045] (5) The hanging fixture of this utility model has a simple structure and reliable structural rigidity. It is highly applicable in actual production and has broad application prospects. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the combined installation structure of the fixed bracket and a single spraying hanger of this utility model;

[0047] Figure 2 This is a schematic diagram of the lower fixed bracket of this utility model;

[0048] Figure 3 This is a schematic diagram of the upper fixed bracket of this utility model;

[0049] Figure 4 This is a schematic diagram of the card plate structure of this utility model;

[0050] Figure 5 This is a schematic diagram of the spraying fixture structure of this utility model;

[0051] Figure 6 This is a schematic diagram of the structure of the extra-long spray paint trim strip of this utility model being mounted on a spray painting fixture;

[0052] Figure 7 This is a schematic diagram of the first hanging point reinforcing plate structure of this utility model;

[0053] Figure 8This is a schematic diagram of the second hanging point reinforcing plate structure of this utility model;

[0054] Figure 9 This is a schematic diagram of the connection structure between the first hanging point reinforcing plate and the extra-long painted trim strip of this utility model;

[0055] Figure 10 This is a schematic diagram of the connection structure between the second hanging point reinforcing plate and the extra-long painted trim strip of this utility model;

[0056] Figure 11 This is a schematic diagram of the connection structure between the hanging fixture fixing plate and the fixing bracket of this utility model;

[0057] Figure 12 This is a schematic diagram of the combined installation structure of the fixed bracket and multiple spraying hangers of this utility model;

[0058] Figure 13 This is a schematic diagram illustrating the effect of applying the hanger of Embodiment 4 of this utility model to an extra-long PP spray-painted decorative strip.

[0059] Figure 14 This is a schematic diagram illustrating the effect of applying the hanger of Comparative Example 1 of this utility model to an extra-long PP spray-painted decorative strip.

[0060] In the diagram, 1-fixed bracket; 1a-upper fixed bracket; 1b-lower fixed bracket; 11-clamping plate; 12-frame; 121-transverse connecting rod; 122-longitudinal connecting rod; 123-clamping plate mounting rod; 124-clamping foot; 125-fixed bracket reinforcing rod;

[0061] 2-Spraying hanger; 21-Hanger frame; 22-Mask; 23-Hanging point reinforcement plate; 23a-First hanging point reinforcement plate; 23b-Second hanging point reinforcement plate; 23c-Hanger fixing plate; 231-First bending section; 232-Second bending section; 233-Through hole; 234-Support arm; 235-Positioning protrusion; 236-Slot; 237-Mounting hole; 238-Reinforcing column; 24-Hanger reinforcing rod;

[0062] 3-Extra-long painted trim strip; 31-Snap fastener. Detailed Implementation

[0063] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0064] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0066] Unless otherwise specified, the functional components or structures in the following embodiments or examples are conventional components or structures used in the art to achieve the corresponding functions.

[0067] Example 1

[0068] A type of hanger for spray painting extra-long decorative strips, such as Figure 1 As shown, it includes a fixed bracket 1 and several spraying hangers 2. The fixed bracket 1 can be connected to the painting trolley, and the spraying hangers 2 are used to hang extra-long paint trim strips 3. The fixed bracket 1 consists of an upper fixed bracket 1a and a lower fixed bracket 1b. The spraying hangers 2 are in a vertical state and can be detachably installed between the upper fixed bracket 1a and the lower fixed bracket 1b.

[0069] Both the upper fixed bracket 1a and the lower fixed bracket 1b are provided with several card plates 11; the spraying hanger 2 includes a hanger frame 21 and a masking plate 22 installed on the hanger frame 21. Several hanging point reinforcing plates 23 are provided between the hanger frame 21 and the masking plate 22. The hanging point reinforcing plates 23 are parallel to each other and are evenly distributed along the length direction of the spraying hanger 2.

[0070] The extra-long spray paint trim 3 has several buckles 31 evenly spaced along its length on both sides; the spray painting fixture 2 is engaged with the clamp plate 11 of the fixed bracket 1 through the hanging point reinforcement plate 23; the extra-long spray paint trim 3 is engaged with the hanging point reinforcement plate 23 through the buckles 31 and then vertically hung on the masking plate 22.

[0071] Example 2

[0072] A hanging device for spraying extra-long painted trim strips is installed on a painting trolley. The device includes a fixed bracket 1 and several spraying hangers 2. The spraying hangers 2 are used to hang extra-long painted trim strips 3 and are vertically and detachably assembled between an upper fixed bracket 1a and a lower fixed bracket 1b. The upper fixed bracket 1a and the lower fixed bracket 1b together constitute the fixed bracket 1. Figure 2-3 ).

[0073] In this embodiment, as Figure 2 As shown, the main body of the fixed bracket 1 is a frame 12 with a gate-shaped structure. The frame 12 includes a transverse connecting rod 121 and two longitudinal connecting rods 122. The two longitudinal connecting rods 122 are parallel to each other and are perpendicularly connected to the two ends of the transverse connecting rod 121. A clamping plate mounting rod 123 is also connected between the ends of the two longitudinal connecting rods 122. The clamping plates 11 are assembled on the clamping plate mounting rod 123 and are evenly spaced along the length of the clamping plate mounting rod 123. Figure 4 Each longitudinal connecting rod 122 is provided with a locking foot 124 at one end where it connects to the transverse connecting rod 121, for fixing the connection between the bracket 1 and the painting trolley; and the length of the longitudinal connecting rod 122 of the upper fixed bracket 1a is shorter than that of the longitudinal connecting rod 122 of the lower fixed bracket 1b. Each longitudinal connecting rod 122 is also provided with a fixed bracket reinforcing rod 125 between the end of the mounting rod 123 on the same side, for strengthening the structural stability and rigidity.

[0074] In this embodiment, as Figure 5 As shown, the frame 21 of the spraying hanger 2 consists of two parallel and spaced vertical rods, with a masking plate 22 mounted on each vertical rod. The masking plate 22 is a straight, long strip-shaped structure that is parallel to and spaced from the corresponding vertical rod. Each vertical rod and the corresponding masking plate 22 are connected by several hanger reinforcing rods 24, which are parallel to each other and spaced apart along the length of the vertical rod.

[0075] In this embodiment, a plurality of hanging point reinforcing plates 23 are provided between the hanger frame 21 and the shielding plate 22. Each hanging point reinforcing plate 23 is parallel to each other and evenly distributed along the length direction of the spraying hanger 2, and is located between the two adjacent hanger reinforcing rods 24 mentioned above.

[0076] In this embodiment, as Figure 6-8As shown, the hanging point reinforcing plate 23 has a bent portion, which can be engaged with the clamping plate 11 to install the spraying hanger 2 on the fixed bracket 1. The bent portion includes a first bent section 231 and a second bent section 232 connected to each other. Two through holes 233 are opened at the connection between the two for connecting with the two vertical long rods of the hanger frame 21. The two ends of the second bent section 232 extend outward horizontally to form two support arms 234. The end of each support arm 234 extends outward horizontally with a positioning protrusion 235. The shielding plate 22 has a number of positioning holes 221 evenly spaced along its own length direction. Each positioning hole 221 corresponds to the positioning protrusion 235 of each hanging point reinforcing plate 23 for welding and positioning of the shielding plate 22 and each hanging point reinforcing plate 23. The extra-long spray-painted trim strip 3 has several buckles 31 evenly spaced along its length on both sides. Each support arm 234 has a slot 236 at its end for engaging with the buckles 31 on both sides of the extra-long spray-painted trim strip 3. Through the cooperation of the buckles 31 and the slots 236, the extra-long spray-painted trim strip 3 can be vertically hung on the shielding plate 22.

[0077] Example 3

[0078] A hanging fixture for spraying extra-long decorative strips, based on embodiment 2, includes a hanging point reinforcing plate 23 comprising several first hanging point reinforcing plates 23a, two second hanging point reinforcing plates 23b, and two hanging fixture fixing plates 23c.

[0079] In this embodiment, the two second hanging point reinforcing plates 23b are respectively located at the two ends of the spraying hanger 2 along its own length direction, and the two hanger fixing plates 23c are respectively set close to the two ends of the spraying hanger 2; the spraying hanger 2 is respectively engaged with the upper fixing bracket's clamping plate 11 and the lower fixing bracket's clamping plate 11 through the two hanger fixing plates 23c, and the hanger fixing plates 23c cooperate with the clamping plates 11 through their own bending parts.

[0080] In this embodiment, as Figure 9 As shown, each support arm 234 of the first hanging point reinforcing plate 23a and the hanging fixture fixing plate 23c has a first slot on its outer side at the end; as Figure 11 As shown, the width of the first bent section 231 of the mounting plate 23c is greater than the width of the first bent section 231 of the first hanging point reinforcing plate 23a and the second hanging point reinforcing plate 23b, in order to better cooperate with the card plate 11 and increase the installation stability.

[0081] In this embodiment, as shown Figure 10 As shown, a second slot is provided on both sides of the positioning protrusion 235 of the second hanging point reinforcing plate 23b; and each of its support arms 234 is provided with a mounting hole 237 at the end, and a reinforcing column 238 is installed in the mounting hole 237 to enhance the structural rigidity of the spraying hanger 2.

[0082] In practical use, this embodiment includes the following steps:

[0083] (1) Install the upper fixed bracket 1a and the lower fixed bracket 1b on the same side of the painting trolley by means of the clip 124;

[0084] (2) Based on the spraying requirements of the extra-long spray paint trim, the spraying fixture 2 is installed and fixed between the upper fixed bracket 1a and the lower fixed bracket 1b by the bending part of the two fixture fixing plates 23c and the snap-fit ​​of the clamp plate 11.

[0085] (3) By using the buckle 31 of the extra-long spray paint trim 3 to form a snap-fit ​​with the slot 236 of the hanging point reinforcement plate 23, the extra-long spray paint trim 3 is hung on the shielding plate 22, so that its back is tightly attached to the shielding plate 22 to block the paint mist from adhering, and then the spray painting operation can be carried out.

[0086] (4) There is no need to shut down the painting line during the painting process. The loading and unloading operations can be completed at the side of the painting line. The individual painting hangers can be removed from the fixed bracket, which solves the problem of excessive loading and unloading time caused by multiple hangers on a single vehicle.

[0087] Example 4

[0088] A hanging fixture for spraying extra-long decorative strips, based on Example 3, such as... Figure 12 As shown, in this embodiment, each fixed bracket 1 has 8 card plates 11.

[0089] The mounting brackets of this embodiment can be practically applied to the painting process of extra-long PP spray-painted trim strips. The length of the extra-long PP spray-painted trim strips is up to 2127mm, and the bracket size is 2123mm. When the fixed bracket 1 is fully loaded with spray-painting brackets 2, the painting trolley can support 8 spray-painting brackets 2 on one side. Each spray-painting bracket 2 can hold 2 extra-long spray-painted trim strips 3. When arranged on both sides, a single trolley can paint 32 extra-long PP spray-painted trim strips.

[0090] like Figure 13 After applying the hanger of this embodiment, the extra-long PP spray-painted trim shrinks orderly along a straight line during the spraying and baking process, effectively avoiding the problem of disordered deformation, effectively solving the problem of difficult operation of the upper and lower parts of the extra-long spray-painted trim, and replacing the product tape masking, thus achieving the purpose of manufacturing cost reduction.

[0091] Comparative Example 1

[0092] The core difference between the extra-long spray paint trim provided in this comparative example and Example 4 lies in the structural design of the masking plate 22: the masking plate 22 is not a straight long strip-shaped structure, but a contoured structure with a certain curvature.

[0093] like Figure 14After actually applying the hanging fixture of this comparison ratio, it was found that because the extra-long PP spray-painted trim strip is soft in texture, when the trim strip shrinks and deforms during the spraying and baking process, the degree of bending is significantly aggravated, and the ends of the trim strip show obvious warping. In the end, it is impossible to avoid the problem of disordered deformation of the product.

[0094] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A hanging fixture for spraying extra-long decorative strips, characterized in that, The system includes a fixed bracket (1) mounted on a painting trolley and several spraying hangers (2) for mounting extra-long paint trim strips (3). The fixed bracket (1) includes an upper fixed bracket and a lower fixed bracket. The spraying hangers (2) are detachably and vertically arranged between the upper fixed bracket (1a) and the lower fixed bracket (1b). The upper fixed bracket (1a) and the lower fixed bracket (1b) are each provided with several clamping plates (11). The spraying hanger (2) includes a hanger frame (21) and a shielding plate (22) provided on the hanger frame (21). Several hanging point reinforcing plates (23) are provided between the hanger frame (21) and the shielding plate (22). The hanging point reinforcing plates (23) are parallel to each other and evenly distributed along the length direction of the spraying hanger (2). Several buckles (31) are evenly distributed on both sides of the extra-long spray paint strip (3) along its length direction. The spraying hanger (2) is engaged with the clamping plates (11) of the fixed bracket (1) through the hanging point reinforcing plates (23). The extra-long spray paint strip (3) is engaged with the hanging point reinforcing plates (23) through the buckles (31) and vertically hung on the shielding plate (22).

2. The hanging fixture for spraying extra-long decorative strips according to claim 1, characterized in that, The fixed bracket (1) includes a frame (12), which has a gate-shaped structure. The frame (12) includes a transverse connecting rod (121) and two longitudinal connecting rods (122). The two longitudinal connecting rods (122) are parallel to each other and are respectively perpendicular to the two ends of the transverse connecting rod (121). A clamping plate mounting rod (123) is provided between the ends of the two longitudinal connecting rods (122). The clamping plate (11) is provided on the clamping plate mounting rod (123) and is evenly spaced along the length of the clamping plate mounting rod (123). Each longitudinal connecting rod (122) is provided with a clamping foot (124) for connecting with the painting trolley at one end connected to the transverse connecting rod (121).

3. The hanging fixture for spraying extra-long decorative strips according to claim 2, characterized in that, The length of the longitudinal connecting rod (122) of the upper fixed bracket is less than the length of the longitudinal connecting rod (122) of the lower fixed bracket, and a fixed bracket reinforcing rod (125) is provided between each longitudinal connecting rod (122) and the end of the card plate mounting rod (123) on the same side.

4. The hanging fixture for spraying extra-long decorative strips according to claim 1, characterized in that, The hanging frame (21) includes two parallel and spaced vertical rods. Each vertical rod has a corresponding shielding plate (22). The shielding plate (22) is a straight, long strip-shaped structure. Each shielding plate (22) is parallel and spaced with the corresponding vertical rod. Each vertical rod and the corresponding shielding plate (22) are connected by several hanging reinforcement rods (24). The hanging reinforcement rods (24) are parallel to each other and spaced along the length of the vertical rod.

5. The hanging fixture for spraying extra-long decorative strips according to claim 4, characterized in that, The hanging point reinforcement plate (23) includes a bent portion, which includes a first bent section (231) and a second bent section (232) connected to each other. Two through holes (233) are opened at the connection between the first bent section (231) and the second bent section (232), respectively for connecting with the two vertical long rods of the hanging frame (21). Two support arms (234) are provided at both ends of the second bent section (232) respectively. A positioning protrusion (235) is provided at the end of each support arm (234) extending outward horizontally. A number of positioning holes (221) are evenly spaced along the length of the shielding plate (22). Each positioning hole (221) corresponds one-to-one with the positioning protrusion (235) on each hanging point reinforcement plate (23). A slot (236) is provided at the end of each support arm (234) for engaging with the buckle (31) on the extra-long painted trim strip (3).

6. The hanging fixture for spraying extra-long painted decorative strips according to claim 5, characterized in that, The hanging point reinforcement plate (23) is set between two adjacent hanging reinforcement rods (24). The hanging point reinforcement plate (23) includes several first hanging point reinforcement plates (23a), two second hanging point reinforcement plates (23b), and two hanging fixture fixing plates (23c). The two second hanging point reinforcement plates (23b) are located at the two ends of the spraying fixture (2) along its length direction, and the two hanging fixture fixing plates (23c) are located near the two ends of the spraying fixture (2). The spraying fixture (2) is connected to the upper fixing bracket's clamping plate (11) and the lower fixing bracket's clamping plate (11) one-to-one through the two hanging fixture fixing plates (23c). The bent part of the hanging fixture fixing plate (23c) is connected to the clamping plate (11).

7. The hanging fixture for spraying extra-long decorative strips according to claim 6, characterized in that, In the first hanging point reinforcing plate (23a) and the hanging fixture fixing plate (23c), a first slot is provided on the outer side of the end of each of the support arms (234), and the width of the first bent section (231) of the hanging fixture fixing plate (23c) is greater than the width of the first bent section (231) of the first hanging point reinforcing plate (23a) and the second hanging point reinforcing plate (23b).

8. A hanging fixture for spraying extra-long decorative strips according to claim 6, characterized in that, In the second hanging point reinforcing plate (23b), a second slot is provided on each side of the positioning protrusion (235).

9. A hanging fixture for spraying extra-long decorative strips according to claim 8, characterized in that, In the second hanging point reinforcing plate (23b), each of the support arms (234) is provided with a mounting hole (237) at its end, and a reinforcing column (238) is provided in the mounting hole (237).

10. A hanging fixture for spraying extra-long decorative strips according to claim 1, characterized in that, The number of card plates (11) of each fixed bracket (1) is set to 8, the length of the extra-long spray paint trim (3) is greater than 1200mm, and the material of the extra-long spray paint trim (3) includes PP material.

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