Spraying device for needling production

Abstract

The utility model discloses a spraying device for needling production, which is mounted above a feeding conveyor belt of a needling machine and is used for accurately coordinating the operation of each component through a PLC (Programmable Logic Controller) control system. The mounting frame is fixed through the mounting seat and is provided with a through groove and a rubber pad, so that stability and fine adjustment are ensured. The connecting plate transversely slides on the mounting frame and is driven by the lead screw guide rail and the reciprocating motor, and reciprocating motion of the spray head is achieved. The nozzles are arranged in a circumferential array mode, and angle adjustment is achieved through a sliding seat and sliding block structure driven by an air cylinder. The formaldehyde removing agent is conveyed from the storage tank to the spray head through the conveying pump and the pipeline, and the conveying pump provides pressure so that liquid can be evenly sprayed to the conveying belt. And the unabsorbed liquid drops to the liquid collecting tank and flows back to the storage tank for recycling due to the dead weight. The grating monitors the state of the conveyor belt to ensure efficient operation of the system.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber raw material processing equipment, specifically to a spray device for needle punching production. Background Technology

[0002] Felt is made by arranging short fibers into a web using different equipment and processes. Then, through needle punching and other processes, the different fibers are interwoven and entangled to standardize the fabric, making it soft, full, thick, and stiff, achieving different thicknesses to meet usage requirements. To achieve lightweight automotive trim, felt is currently manufactured by needle punching a composite of polypropylene (PP) and natural fibers. In this process, the two types of fibers need to be opened and mixed before being placed on the needle punching machine conveyor belt. However, natural fibers, such as hemp fibers, release aldehydes during the mixing and rolling process, which are harmful to human health.

[0003] Utility model patent CN210098047U discloses a device for spraying formaldehyde removal agent. It uses a hydraulic cylinder to move the crossbeam horizontally and two hydraulic cylinders to drive the lifting platform vertically. It also includes a formaldehyde removal agent grid plate recovery device. However, due to the presence of a base and spraying station, this structure cannot be directly applied to continuous production of a loosening machine-needling machine, and its automation level is low. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a spray system suitable for needle punching production between an opening machine and a needle punching machine, so as to solve the formaldehyde removal treatment of the mixture of hemp fiber and PP fiber during the opening process.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A spraying device for needle punching production includes a housing and a mounting frame. The mounting frame is mounted above the feeding conveyor belt of the needle punching machine via a mounting base. The mounting base has a through groove, and a bolt is installed on one side of the through groove. A rubber pad is installed inside the through groove on the bolt, and a knob is fixedly installed on the outside of the through groove on the bolt. A connecting plate is slidably mounted on the mounting frame, and a spray head is installed on the connecting plate. The spray head is connected to a storage tank and a delivery pump via a pipe. The storage tank contains a formaldehyde removal agent, and the delivery pump is electrically connected to a PLC control system.

[0007] Furthermore, the nozzle is provided with a fan-shaped nozzle, and there are multiple nozzles arranged in a circular array, with the nozzles of the nozzles pointing towards the center of the circle.

[0008] Furthermore, the connecting plate is provided with an angle adjustment mechanism, which includes: the nozzle is hinged to the connecting plate, the nozzle is also provided with a sliding column, the sliding column is slidably connected to a sliding seat, the mounting bracket is also provided with a cylinder, the cylinder is provided with a connecting rod, the connecting rod is provided with a locking block that adapts to the sliding seat, the cylinder is connected to an air pump, and the air pump is electrically connected to the PLC control system.

[0009] Furthermore, an arc-shaped partition is provided between the mounting bracket and the nozzle. Both ends of the arc-shaped partition are connected to liquid collection tanks. The liquid collection tanks are in clearance fit with the feeding conveyor belt of the needle punching machine. The liquid collection tanks are inclined. The lower end of the liquid collection tanks is connected to the storage tank. The height of the liquid collection tanks is higher than that of the storage tanks. The liquid flows back to the storage tanks by its own weight.

[0010] Furthermore, a lead screw guide rail is provided between the mounting bracket and the connecting plate, the connecting plate slides along the lead screw guide rail, the lead screw guide rail is connected to the output end of the reciprocating motor, and the reciprocating motor is electrically connected to the PLC control system.

[0011] Furthermore, gratings are provided on both sides of the mounting bracket, and the gratings are electrically connected to the PLC control system.

[0012] Furthermore, the needle punching machine's feed conveyor belt is connected to a conveyor motor, which is electrically connected to the PLC control system. The conveyor motor works synchronously with the delivery pump.

[0013] The advantages and beneficial effects of this utility model are as follows:

[0014] 1. The PLC control system enables precise control of the delivery pump, cylinder, and reciprocating motor. The reciprocating motor causes the nozzle to move back and forth along the direction of the conveyor belt to repeatedly spray the formaldehyde removal agent. The cylinder drives the locking block, slide, and nozzle to move left and right perpendicular to the direction of the conveyor belt through the connecting rod, ensuring the automation and consistency of the spraying operation.

[0015] 2. The grating can monitor the material status on the feeding conveyor belt in real time and send signals to the PLC control system at any time to prevent over-spraying. It stops spraying when no material is detected or when the material stops moving, thus saving medicine.

[0016] 3. The design of the arc-shaped baffle and the liquid collection tank can effectively collect the formaldehyde removal agent liquid that is not absorbed during the spraying process, and return it to the storage tank by gravity, reducing waste and environmental pollution. Attached Figure Description

[0017] Figure 1 This is a disassembly diagram of the present invention;

[0018] Figure 2This is a structural schematic diagram of part A of this utility model;

[0019] Figure 3 This is a structural schematic diagram of part B of this utility model;

[0020] Figure 4 This is one of the internal structural schematic diagrams of this utility model;

[0021] Figure 5 This is the second schematic diagram of the internal structure of this utility model;

[0022] In the picture:

[0023] 1-Mounting bracket, 2-Housing, 3-Mounting base, 4-Through groove, 5-Bolt, 6-Rubber pad, 7-Knob, 8-Connecting plate, 9-Nozzle, 10-Fan-shaped nozzle, 11-Sliding column, 12-Sliding seat, 13-Connecting rod, 14-Clamping block, 15-Cylinder, 16-Storage tank, 17-Transfer pump, 18-PLC control system, 19-Screw guide rail, 20-Reciprocating motor, 21-Grate, 22-Arc-shaped partition, 23-Collection tank. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0025] Example

[0026] Please see Figures 1-5 A spraying device for needle punching production includes a mounting frame 1, a housing 2, and a mounting base 3. The mounting frame 1 is mounted above the feeding conveyor belt of the needle punching machine. The mounting base 3 has a through groove 4, and a bolt 5 is threadedly connected to one side of the through groove 4. A rubber pad 6 is fixed inside the through groove 4 by the bolt 5. A knob 7 is fixed outside the through groove 4 by the bolt 5. A connecting plate 8 slides laterally on the mounting frame 1 and is provided with an angle adjustment mechanism. A nozzle 9 is hinged to the connecting plate 8 and is also provided with a sliding column 11. The sliding column 11 is slidably connected to a sliding seat 12. The mounting frame 1 is equipped with a cylinder 15. The output end of the cylinder 15 is provided with a connecting rod 13. The connecting rod 13 extends radially to a locking block 14 that is adapted to the sliding seat 12. The cylinder 15 is connected to an air pump. The nozzle 9 is provided with fan-shaped nozzles 10. The nozzles 9 are arranged in a circumferential array on the connecting plate 8, with the nozzles pointing towards the center. The nozzle 9 is connected to the storage tank 16 and the delivery pump 17 via a pipe. The storage tank contains formaldehyde removal agent. The air pump and the delivery pump 17 are connected to the PLC control system 18 via an electrical circuit.

[0027] A lead screw guide rail 19 is provided between the mounting bracket 1 and the connecting plate 8. The connecting plate 8 slides along the lead screw guide rail 19. The lead screw guide rail 19 is connected to the output end of the reciprocating motor 20. The reciprocating motor 20 is electrically connected to the PLC control system 18. Optical gratings 21 are provided on both sides of the mounting bracket 1. The optical gratings 21 are connected to the PLC control system 18 through circuitry.

[0028] The housing 2 extends through the mounting bracket 1 and is further provided with an arc-shaped partition 22. Both ends of the arc-shaped partition 22 are connected to liquid collection tanks 23. The liquid collection tanks 23 are in clearance fit with the feeding conveyor belt of the needle punching machine. The liquid collection tanks 23 are inclined, with the lower end of the liquid collection tank 12 connected to the storage tank 16. The height of the liquid collection tank 23 is higher than that of the storage tank 16, and the liquid flows back to the storage tank 16 by its own weight. The feeding conveyor belt of the needle punching machine is connected to a conveyor belt motor, which is electrically connected to the PLC control system 18. The conveyor belt motor and the delivery pump 17 work synchronously.

[0029] Working principle:

[0030] The mounting frame 1 is fixed above the feeding conveyor belt of the needle punching machine via the mounting base 3. The through slot 4 on the mounting base 3 engages with both sides of the conveyor belt, and the adjusting knob 7, through the rubber pad 6, forms a clamping force with the mounting base to fix the spraying device. This setup is adaptable to needle punching machine conveyor belts of different sizes. When the needle punching machine starts working, the PLC control system 18 receives a signal and controls the delivery pump and delivery pump 17 to work synchronously. The delivery pump provides pressure to the nozzles 9, delivering the formaldehyde remover from the storage tank 16 to the nozzles 9 through pipelines. The nozzles 9 are arranged in a circumferential array on the connecting plate 8, with the fan-shaped nozzles pointing towards the center, ensuring that the formaldehyde remover can be sprayed onto the material on the needle punching machine conveyor belt. The fan-shaped nozzles spray the formaldehyde remover in a fan shape, expanding the spraying area. The lead screw guide rail 19 is connected to the output end of the reciprocating motor 20, allowing the connecting plate 8 to reciprocate on the mounting frame 1, thereby changing the coverage area of ​​the nozzles 9 and ensuring that the entire conveyor belt can be sprayed evenly.

[0031] The connecting plate 8 is laterally slidably mounted on the mounting frame 1 and is equipped with an angle adjustment mechanism. The air pump pressure is adjusted by the PLC control system to make the connecting rod 13 reciprocate. The connecting rod 13 drives the locking block, sliding seat and hinged nozzle to rotate, so that the nozzle 9 can automatically adjust the spray angle as needed, avoiding uneven spraying of fibers in one place due to the reciprocating motion of the screw guide rail 19. The spray range and density can also be adjusted by the PLC control system according to actual needs. The formaldehyde removal agent that is not sprayed onto the inner surface of the arc-shaped partition 22 will splash onto the inner surface of the arc-shaped partition 22 and then drip down into the liquid collection tank 23. Since the liquid collection tank 23 is inclined and higher than the storage tank 16, the liquid can flow back to the storage tank 16 by gravity for recycling.

[0032] The grating 21 monitors the working status of the needle punching machine and feeds the information back to the PLC control system 18. If an abnormality is detected, such as no material on the conveyor belt or excessive material accumulation, the PLC control system 18 can adjust the working status of the spraying device or stop spraying in a timely manner.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A spraying device for needle punching production, characterized in that: The device includes a mounting frame (1) and a housing (2) located outside the mounting frame (1). The mounting frame (1) has a mounting base (3) at its bottom. The mounting base (3) has a through groove (4). A bolt (5) is provided on one side of the through groove (4). A rubber pad (6) is provided in the through groove of the bolt (5). A knob (7) is fixedly provided on the outside of the through groove of the bolt (5). A connecting plate (8) is provided on the mounting frame (1) in a horizontal sliding manner. A nozzle (9) is provided on the connecting plate (8). The nozzle (9) is connected to a storage tank (16) and a delivery pump (17) through a pipe. The storage tank contains a formaldehyde remover. The delivery pump (17) is electrically connected to a PLC control system (18).

2. The spraying device for needle punching production according to claim 1, characterized in that: The nozzle (9) is provided with a fan-shaped nozzle (10).

3. The spraying device for needle punching production according to claim 1 or 2, characterized in that: The nozzle (9) is provided in multiple ways, and the multiple nozzles (9) are arranged in a circular array. The nozzle (9) is provided with a nozzle, and the nozzle points to the center of the circle.

4. The spraying device for needle punching production according to claim 3, characterized in that: The connecting plate (8) is provided with an angle adjustment mechanism, which includes: the nozzle (9) is hinged to the connecting plate (8), the nozzle (9) is also provided with a sliding column (11), the sliding column (11) is slidably connected to a sliding seat (12), the mounting bracket (1) is also provided with a cylinder (15), the output end of the cylinder (15) is provided with a connecting rod (13), the connecting rod (13) is provided with a locking block (14) adapted to the sliding seat (12), the cylinder (15) is connected to an air pump, and the air pump is electrically connected to the PLC control system (18).

5. The spraying device for needle punching production according to claim 4, characterized in that: The shell (2) extends through the mounting frame (1) and is also provided with an arc-shaped partition (22). The arc-shaped partition (22) is connected to a liquid collection tank (23). The liquid collection tank (23) is inclined and the lower end of the liquid collection tank (23) is connected to the storage tank (16). The height of the liquid collection tank (23) is higher than that of the storage tank (16).

6. The spraying device for needle punching production according to claim 1, characterized in that: A lead screw guide rail (19) is provided between the mounting bracket (1) and the connecting plate (8). The connecting plate (8) slides along the lead screw guide rail (19). The lead screw guide rail (19) is connected to the output end of the reciprocating motor (20). The reciprocating motor (20) is electrically connected to the PLC control system (18).

7. The spraying device for needle punching production according to claim 1, characterized in that: The mounting bracket (1) has gratings (21) on both sides, and the gratings (21) are electrically connected to the PLC control system.

8. The spraying device for needle punching production according to claim 1, characterized in that: The spraying device is mounted above the needle punch machine conveyor belt via a mounting base (3). The needle punch machine conveyor belt is equipped with a conveyor belt motor, which is electrically connected to the PLC control system (18). The conveyor belt motor works synchronously with the delivery pump (17).

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