Multidirectional spraying device for foamed production of automobile bumpers

Abstract

The utility model discloses a kind of multi-directional spraying devices of automobile bumper foaming production, it is related to foaming spraying technical field, including driving frame, guide slot, motor, driving frame and fixed frame, driving mechanism is arranged below the driving frame, the driving mechanism includes guide slot, motor, driving frame, reciprocating screw and guide sliding block, the motor output shaft is fixedly connected with reciprocating screw, reciprocating screw is guided under the guidance of guide sliding block by motor, so that guide sliding block realizes reciprocating sliding function, driving frame transverse movement is driven by reciprocating screw, angle adjustment and spray head height adjustment of cooperation bearing rod, multi-angle coverage to complex structure such as automobile bumper curved surface, groove can be realized, solve the limitation of traditional single spray head linear spraying.

Description

Technical Field

[0001] This utility model relates to the field of foaming and spraying technology, specifically a multi-directional spraying device for the production of foamed automotive bumpers. Background Technology

[0002] The multi-directional spraying device for automotive bumper foam production is an application in the production process of automotive bumper foam, designed to achieve multi-angle and uniform spraying of foam material onto the bumper. However, existing multi-directional spraying devices for automotive bumper foam production have some shortcomings, such as: The foaming agent spraying device described in application number CN202120112529.8 pressurizes and conveys the stored foaming agent through a foaming agent spraying and conveying structure. A flow meter is set to measure the foaming agent being conveyed and sprayed. Spraying requires manual hand operation. In the face of large-area spraying scenarios, the spraying efficiency is low and manual spraying is prone to causing uneven thickness. Summary of the Invention

[0003] The purpose of this utility model is to provide a multi-directional spraying device for the production of automotive bumper foam, in order to solve the problems mentioned above. The existing devices on the market use a foaming agent spraying and conveying structure to pressurize and convey the stored foaming agent, and a flow meter is set to measure the conveyed foaming agent. Spraying requires manual hand operation, which results in low spraying efficiency and uneven thickness when facing large-area spraying scenarios.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional spraying device for producing automotive bumper foam, comprising a drive frame, a guide groove, a motor, a drive frame, and a fixing frame; A drive mechanism is provided below the drive frame. The drive mechanism includes a guide groove, a motor, a drive frame, a reciprocating screw, and a guide slider. The output shaft of the motor is fixedly connected to the reciprocating screw. The motor drives the reciprocating screw to achieve the reciprocating sliding function under the guidance of the guide slider.

[0005] As a preferred technical solution of this utility model, bolt fixing holes are provided on both sides of the top of the drive frame, and a motor is fixedly connected to the left side of the drive frame. The output shaft of the motor on the right side is fixedly connected to the reciprocating screw, and the reciprocating screw is rotatably connected to the inside of the drive frame. The above technical solution features bolt fixing holes on the top of the drive frame. The motor and reciprocating screw are coaxially fixed and rotatably connected inside the drive frame. This design allows the device to be quickly installed onto the production line frame via bolts, adapting to different layouts, and is easy to install without complex adjustments. The direct coaxial connection between the motor and the reciprocating screw reduces transmission backlash and improves power transmission efficiency. At the same time, the reciprocating screw is fixed to the inside of the drive frame via bearings, ensuring rotational coaxiality, avoiding nozzle spraying position deviations caused by shaking, and ensuring transmission stability. The motor is integrated on the left side of the drive frame, forming an integrated module with the reciprocating screw, reducing the device size, saving production line space, and making the structure more compact.

[0006] As a preferred technical solution of this utility model, a guide groove is opened on the side of the drive frame, the drive frame is slidably connected in the guide groove, the guide slider is rotatably connected above the drive frame, the guide slider is slidably connected to the reciprocating lead screw, the fixing frame is bolted below the drive frame, the fixing frame has a T-shaped structure, and a wire threading frame is fixedly connected above the fixing frame, and five wire threading frames are evenly arranged. The above technical solution features a guide groove on the side of the drive frame, with the drive frame slidably connected to the guide groove and linked to the reciprocating screw via a guide slider. The fixed frame is T-shaped with evenly arranged wire guides. The sliding fit between the guide groove and the drive frame provides rigid guidance for lateral movement, preventing the drive frame from shifting during reciprocating motion, ensuring the straightness of the nozzle's trajectory, and improving spraying position accuracy. The T-shaped fixed frame increases the installation area, and multiple evenly arranged wire guides can symmetrically arrange multiple sets of spraying pipes, ensuring balanced force on the drive frame and reducing movement jamming caused by unilateral load. The wire guides house the spraying pipes, preventing them from tangling or being dragged as the drive frame moves. The even layout facilitates centralized maintenance and replacement, optimizing pipe management.

[0007] As a preferred technical solution of this utility model, a bearing rod is rotatably connected below the threading frame, and both sides of the connection between the bearing rod and the threading frame are externally threaded, and the bearing rod is fixed to the threading frame by bolts; Using the above technical solution, the support rod and the wire guide are fixed by external threaded bolts, and the connection is an external thread structure. Loosening the bolts allows for manual rotation of the support rod, flexibly adjusting its tilt angle to adapt to complex structures such as curved and inclined surfaces of automotive bumpers, achieving multi-angle spraying coverage. The engagement of the external thread and bolt provides sufficient locking force to ensure the stability of the support rod angle during spraying, preventing displacement caused by vibration and ensuring consistent spraying during mass production. The bolt fixing structure can be operated without special tools, reducing the difficulty of operation for workers, shortening changeover time, and improving operational convenience.

[0008] As a preferred technical solution of this utility model, the nozzle is slidably connected below the bearing rod. The nozzle adopts the existing foaming nozzle structure, and the side of the nozzle is slidably connected to the pin. The upper and lower sides of the pin are fixedly connected to springs. The above technical solution involves a sliding connection between the nozzle and the support rod, with springs on both sides of the pin for elastic positioning. The springs' elastic support allows the nozzle to automatically adjust its distance according to the surface height of the buffer, adapting to surface undulations and preventing foam material accumulation or missed spraying due to distance fluctuations. When the nozzle accidentally contacts an obstacle, the spring compression creates a buffer stroke, preventing hard collision damage to the nozzle or workpiece, thus providing anti-collision protection. The sliding connection structure supports fine-tuning of the nozzle's vertical movement, and combined with the spring preload, it can quickly adapt to workpieces of different thicknesses, improving adjustment convenience.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. Multi-directional spraying capability: By driving the drive frame laterally through a reciprocating screw, and in conjunction with the angle adjustment of the bearing rod and the height adjustment of the nozzle, it can achieve multi-angle coverage of complex structures such as curved surfaces and grooves of car bumpers, overcoming the limitations of traditional single-nozzle linear spraying.

[0010] 2. Automation and Precision: Motor-driven reciprocating motion replaces manual operation, improving spraying efficiency and consistency; the spring elastic positioning mechanism allows the nozzle to adapt to the undulations of the workpiece surface, maintaining a stable spraying distance and ensuring uniform adhesion of the foaming material.

[0011] 3. Flexibility and ease of use: The cable tray optimizes the pipeline layout and avoids interference; the bolt-locking structure for the bearing rod angle and nozzle height supports quick adjustment to adapt to the production of different models of buffers, reducing changeover time. Attached Figure Description

[0012] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the drive frame and guide groove structure of this utility model; Figure 3 This is a side view of the cross-sectional structure of the drive frame of this utility model; Figure 4 This is a schematic diagram of the drive frame and guide slider structure of this utility model; Figure 5 This is a schematic diagram of the threading frame and support rod structure of this utility model; Figure 6 This is a schematic diagram of the nozzle and pin structure of this utility model; Figure 7 This is a side view of the cross-sectional structure of the nozzle of this utility model; Figure 8 This is a side view of the pin structure of this utility model.

[0013] In the diagram: 1. Drive frame; 2. Guide groove; 3. Motor; 4. Drive frame; 5. Wire threader; 6. Bearing rod; 7. Nozzle; 8. Pin; 9. Reciprocating screw; 10. Guide slider; 11. Spring; 12. Fixing frame. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-8 The present invention provides a multi-directional spraying device for producing foamed automotive shock absorbers, comprising a drive frame 1, a guide groove 2, a motor 3, a drive frame 4, a wire guide 5, a support rod 6, a spray nozzle 7, a pin 8, a reciprocating screw 9, a guide slider 10, a spring 11, and a fixing frame 12. A drive mechanism is set below the drive frame 1. The drive mechanism includes a guide groove 2, a motor 3, a drive frame 4, a reciprocating screw 9, and a guide slider 10. The output shaft of the motor 3 is fixedly connected to the reciprocating screw 9. The motor 3 drives the reciprocating screw 9 to slide back and forth under the guidance of the guide slider 10.

[0016] The drive frame 1 has bolt fixing holes on both sides of the top and a motor 3 connected to the left side. The output shaft of the motor 3 is fixed to the reciprocating screw 9 and rotates inside the drive frame 1. This design allows for quick installation through bolt holes. The coaxial connection between the motor and the screw reduces transmission gap and improves stability. The integrated structure also reduces the size and saves space. The drive frame 4 slides in the guide groove 2 on the side of the drive frame 1. The drive frame 4 is linked to the reciprocating screw 9 through the guide slider 10. Five wire guides 5 are evenly distributed on the T-shaped fixing frame 12 below. The guide groove and the drive frame cooperate to ensure the accurate trajectory of the nozzle 7. The T-shaped frame increases the area to make the pipeline symmetrical and balanced. The wire guides store the pipeline to prevent tangling and facilitate maintenance. The bearing rod 6, which is rotatably connected to the wire guide 5, is limited by external threaded bolts. The tilt angle can be flexibly adjusted to adapt to the complex surface of the buffer. The bolt locking ensures the angle is stable and the operation is convenient. The nozzle 7, which is slidably connected to the bearing rod 6, is elastically positioned by the pin 8 and the spring 11. The spring support allows the nozzle to adapt to the surface undulations and maintain the spraying distance. It also buffers and prevents damage in case of collision. The sliding structure can also finely adjust the nozzle height to adapt to different workpiece thicknesses.

[0017] Working principle: When using a multi-directional spraying device for producing automotive shock absorber foam, motor 3 drives reciprocating screw 9 to rotate, which in turn drives guide slider 10 and drive frame 4 to move back and forth along guide groove 2, enabling the fixed frame 12, wire guide 5 and nozzle 7 to perform lateral scanning; the bearing rod 6 adjusts the tilt angle with bolts to adapt to the complex surface of the shock absorber, and the nozzle 7 slides along the bearing rod 6 to adjust the height, and is elastically positioned by pin 8 and spring 11, which can automatically adjust the distance and buffer collisions according to the undulations of the workpiece surface; during operation, the shock absorber moves with the conveyor belt, and works in conjunction with the lateral movement of the nozzle to complete full-area spraying, and the limit switch limits the stroke to avoid damage from overtravel, and when changing the workpiece model, it can be quickly adapted by adjusting the angle, height and motor parameters.

[0018] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-directional spraying device for producing foamed automotive bumpers, comprising a drive frame (1), a threading frame (5), and a support rod (6); characterized in that: The drive mechanism is provided below the drive frame (1). The drive mechanism includes a guide groove (2), a motor (3), a drive frame (4), a reciprocating screw (9), and a guide slider (10). The output shaft of the motor (3) is fixedly connected to the reciprocating screw (9). The motor (3) drives the reciprocating screw (9) to slide back and forth under the guidance of the guide slider (10).

2. The multi-directional spraying device for producing automotive bumper foam according to claim 1, characterized in that, Bolt fixing holes are provided on both sides of the top of the drive frame (1), and the motor (3) is fixedly connected to the left side of the drive frame (1). The output shaft of the motor (3) on the right side is fixedly connected to the reciprocating screw (9), and the reciprocating screw (9) is rotatably connected to the inside of the drive frame (1).

3. The multi-directional spraying device for producing automotive bumper foam according to claim 1, characterized in that, The drive frame (1) has a guide groove (2) on its side. The drive frame (4) is slidably connected in the guide groove (2). The guide slider (10) is rotatably connected above the drive frame (4). The guide slider (10) is slidably connected to the reciprocating screw (9). The drive frame (4) is bolted to fix a fixing frame (12). The fixing frame (12) has a T-shaped structure. The wire threading frame (5) is fixedly connected above the fixing frame (12). There are five wire threading frames (5) evenly arranged.

4. The multi-directional spraying device for producing foamed automotive bumpers according to claim 1, characterized in that, The support rod (6) is rotatably connected below the threading frame (5). Both sides of the connection between the support rod (6) and the threading frame (5) are external threaded structures, and the support rod (6) is fixed to the threading frame (5) by bolts.

5. A multi-directional spraying device for producing foamed automotive bumpers according to claim 1, characterized in that, The nozzle (7) is slidably connected below the support rod (6). The nozzle (7) adopts the existing foaming nozzle structure, and the side of the nozzle (7) is slidably connected to the pin (8). The upper and lower sides of the pin (8) are fixedly connected to the spring (11).

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