Plastic spraying equipment for spring processing and production

By designing an automatic intermittent feeding mechanism, which utilizes the cooperation of a motor-driven transmission shaft and opening/closing claws, the problem of time-consuming manual feeding in spring powder coating equipment has been solved, realizing automated spring feeding and improving processing efficiency.

CN224076484UActive Publication Date: 2026-04-03UNIVERSAL SPRING TECHNOLOGY (DANYANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing spring powder coating equipment, manual feeding is time-consuming and affects processing efficiency.

Method used

A powder coating equipment for spring processing and production, including a feeding mechanism, was designed. The automatic intermittent feeding of springs is achieved by using a motor-driven transmission shaft, and the controllable feeding of springs is achieved through the cooperation of the opening and closing claws and the torsion spring.

Benefits of technology

It reduced labor costs, improved processing efficiency, and reduced processing time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses plastic spraying equipment for spring processing and production, and relates to the technical field of spring plastic spraying processing. According to the technical scheme, the plastic spraying equipment for spring machining and production comprises a plastic spraying chamber and is characterized in that a feeding mechanism is installed at the front end of the plastic spraying chamber and used for feeding springs, and a hanging frame is arranged in the plastic spraying chamber and used for containing the springs and feeding the springs into the plastic spraying chamber for plastic spraying; the feeding mechanism comprises a fixing block, a shell is installed on the fixing block, a transmission shaft is slidably installed in the shell, a feeding block is installed on the outer side of the shell and used for feeding of springs, a feeding block is rotatably installed on the shell, a connecting disc is arranged on the transmission shaft, a fixing frame is fixedly installed in the shell, and a middle shaft block is installed below the fixing frame. The center of the center shaft block is provided with a through groove for the spring to pass through, and the transmission shaft slides in the through groove. The utility model aims to provide the plastic spraying equipment for spring processing and production, so that the effect of automatically and intermittently feeding the spring in the plastic spraying equipment is achieved.
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Description

Technical Field

[0001] This utility model discloses a powder coating equipment for spring processing and production, which relates to the field of spring powder coating processing technology. Background Technology

[0002] Spring powder coating is a common surface treatment process for metal springs, primarily aimed at enhancing their corrosion resistance, improving their appearance, and extending their service life. Spring powder coating equipment is specifically designed for coating spring surfaces and mainly utilizes electrostatic powder coating technology. The main components of spring powder coating equipment include a spraying system, powder recovery system, baking (thermocuring) system, material conveying system, pretreatment system, control system, and cooling system. Through electrostatic powder coating technology, combined with pretreatment, thermocuring, and automated control, spring powder coating equipment can provide springs with a high-quality protective coating. This type of equipment not only improves the corrosion resistance and appearance quality of springs but also extends their service life, and is widely used in the automotive, home appliance, and furniture industries.

[0003] In the material conveying system of spring powder coating equipment, springs are usually manually hung on the hanging rack and then sent into the material conveying system for powder coating. Different springs require different powder coating times, so the manual loading time must be determined according to the processing time of different springs. This process consumes a lot of time and affects processing efficiency. Therefore, it is necessary to provide a powder coating equipment for spring processing and production to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a powder coating equipment for spring processing and production, so as to achieve the effect of automatic intermittent feeding of springs in the powder coating equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder coating equipment for spring processing and production, comprising a powder coating chamber, characterized in that: a feeding mechanism is installed at the front end of the powder coating chamber for feeding springs; a hanging rack is provided in the powder coating chamber for placing springs and feeding them into the interior for powder coating; the feeding mechanism includes a fixed block, a housing is installed on the fixed block, a drive shaft is slidably installed in the housing, a feeding block is installed on the outside of the housing for feeding springs, a feeding block is rotatably installed on the housing, a connecting plate is provided on the drive shaft, a fixed frame is fixedly installed inside the housing, a central shaft block is installed below the fixed frame, a through groove is provided at the center of the central shaft block for the spring to pass through, and the drive shaft slides in the through groove.

[0006] Preferably, the drive shaft is driven by a motor.

[0007] Preferably, a torsion spring is provided at the connection between the feed block and the outer shell.

[0008] Preferably, the central shaft block is fixedly connected to the fixed block, the fixed block is equipped with an opening and closing claw, the opening and closing claw is provided with a trapezoidal block, the opening and closing claw is equipped with a spring on the side, the spring is fixedly connected to the fixed block, and two sets of transmission blocks are symmetrically fixedly installed on the side of the connecting plate, with the transmission blocks installed above the trapezoidal blocks.

[0009] Preferably, a spring is installed on the upper end of the transmission block, and the spring is fixedly connected to the fixing frame.

[0010] Preferably, the feeding block is provided with a feeding trough, the feeding block is provided with an inclined trough, the end of the feeding trough is continuous with the opening of the inclined trough, and the end of the inclined trough is connected with the opening of the through trough.

[0011] Preferably, the connecting plate is slidably connected to the fixed frame, and the drive shaft abuts against the outer wall of the feed block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By driving the transmission shaft with a motor, the spring to be processed inside the feed block is stuck on the outer shell and does not fall off when the transmission shaft moves downward. At the same time, the opening and closing claws open, and the spring located in the through groove falls into the hanging frame. After the transmission shaft returns to its original position, the torsion spring returns to its original state, so that the bottom end of the feed block is inside the feeding mechanism, the spring enters the through groove in the central shaft block, the opening and closing claws close, and the spring falling from the feed block enters the through groove, waiting for the next feeding. This completes controllable automatic intermittent feeding, reduces labor costs, reduces processing time, and increases processing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a powder coating equipment for spring processing and production.

[0014] Figure 2 for Figure 1 A schematic diagram of the feeding mechanism of a powder coating equipment for spring processing and production;

[0015] Figure 3 for Figure 2 Partial cross-sectional view of the feeding mechanism;

[0016] Figure 4 for Figure 2 Partial cross-sectional view of the feeding mechanism;

[0017] The following are the labeling elements in the figure:

[0018] 1. Powder coating chamber; 11. Material rack; 2. Feeding mechanism; 21. Outer shell; 22. Fixing block; 221. Spring; 23. Drive shaft; 231. Connecting plate; 24. Feeding block; 241. Feeding trough; 25. Feeding block; 251. Inclined groove; 26. Central shaft block; 261. Through groove; 27. Opening and closing claw; 271. Trapezoidal block; 28. Transmission block; 29. ​​Fixing frame. Detailed Implementation

[0019] 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.

[0020] Specific implementation examples:

[0021] like Figure 1 As shown, a powder coating equipment for spring processing and production includes a powder coating chamber 1. A feeding mechanism 2 is installed at the front end of the powder coating chamber 1 for feeding springs. A hanging rack 11 is provided in the powder coating chamber 1 for placing springs and sending them into the interior for powder coating.

[0022] The springs to be processed will be automatically fed from the feeding mechanism 2 to the hanging rack 11. The hanging rack 11 is driven by a motor to move along the internal track to each station in the powder coating chamber 1. The powder coating chamber 1 includes a spraying system, a powder recovery system, a baking (thermal curing) system, a material conveying system, a pretreatment system, a control system, and a cooling system. Its working principle is existing technology and will not be described in detail here.

[0023] like Figure 2 As shown, the feeding mechanism 2 includes a fixed block 22, on which a housing 21 is mounted, and a transmission shaft 23 is slidably mounted in the housing 21. The transmission shaft 23 is driven by a motor. A feeding block 24 is mounted on the outside of the housing 21 for feeding the spring, and a feeding block 25 is rotatably mounted on the housing 21.

[0024] The spring to be processed enters the feeding block 25 through the feeding block 24. The drive shaft 23 can be driven by the motor to control the spring in the feeding block 25 to enter the powder coating chamber 1. The fixing block 22 is used to fix the feeding mechanism 2 on the powder coating chamber 1. The function of the outer shell 21 is to protect the internal structure of the feeding mechanism 2 to ensure stability and reliability. The feeding block 25 can rotate on the outer shell 21. When the bottom end of the feeding block 25 is inside the feeding mechanism 2, the spring enters the powder coating chamber 1. When the bottom end of the feeding block 25 exits from the feeding mechanism 2, the spring to be processed inside does not feed. This process is controlled by the drive shaft 23.

[0025] The working principle and internal structure of this intermittent feeding system are as follows: Figures 3-4As shown, a connecting plate 231 is provided on the drive shaft 23, and a fixing frame 29 is fixedly installed inside the housing 21. The connecting plate 231 is slidably connected to the fixing frame 29. The drive shaft 23 abuts against the outer wall of the feed block 25. A central shaft block 26 is installed below the fixing frame 29. A through groove 261 is provided at the center of the central shaft block 26 for the spring to pass through. The drive shaft 23 slides in the through groove 261.

[0026] A torsion spring (not shown in the figure) is provided at the connection between the feed block 25 and the outer shell 21;

[0027] When the drive shaft 23 moves downward, the bottom end of the drive shaft 23 pushes the feed block 25 to rotate outward along the connection between the outer shell 21 and the feed block 25, so that the spring inside the feed block 25 is stuck on the outer shell 21 and does not fall off. When the drive shaft 23 moves upward, that is, after returning to its original position, the torsion spring returns to its original state, so that the bottom end of the feed block 25 is inside the feeding mechanism 2, and the spring enters the through groove 261 in the central shaft block 26 to complete the feeding.

[0028] The central shaft block 26 is fixedly connected to the fixed block 22. The fixed block 22 is equipped with an opening and closing claw 27. The opening and closing claw 27 is provided with a trapezoidal block 271. A spring 221 is installed on the side of the opening and closing claw 27. The spring 221 is fixedly connected to the fixed block 22. Two sets of transmission blocks 28 are symmetrically fixedly installed on the side of the connecting plate 231. The transmission blocks 28 are installed above the trapezoidal block 271.

[0029] The structure is designed so that when the drive shaft 23 is not in operation, the spring to be processed enters the through groove 261 from the feed block 25 and is initially located above the closed opening and closing claw 27. The specific working principle is as follows: the drive shaft 23 moves downward, driving the connecting plate 231 to move downward. Since the connecting plate 231 is fixedly connected to the output drive block 28, the drive block 28 moves downward. After the bottom end of the drive block 28 contacts the trapezoidal block 271, its edges push the opening and closing claw 27 outward along the inclined surface of the trapezoidal block 271. Then the spring enters the hanging rack 11 in the spraying chamber 1 to complete the loading. During this process, the function of the spring 221 is to strengthen the stability of the structure. At the same time, when the drive shaft 23 moves upward, after the drive block 28 returns to its upward position, the spring 221 can quickly make the opening and closing claw 27 return to its closed position.

[0030] During this process, as the drive shaft 23 moves downward, the spring to be processed inside the feed block 25 is stuck on the outer shell 21 and does not fall off. At the same time, the opening and closing claw 27 opens, and the spring located in the through groove 261 falls into the hanging frame 11. After the drive shaft 23 returns to its original position, the torsion spring returns to its original state, so that the bottom end of the feed block 25 is inside the feeding mechanism 2, the spring enters the through groove 261 in the central shaft block 26, the opening and closing claw 27 closes, and the spring falling from the feed block 25 enters the through groove 261, waiting for the next feeding.

[0031] The transmission shaft 23 has a frequency connection and the same movement time for each movement. Its frequency is equal to the time it takes for the hanging rack 11 to move from the powder coating chamber 1 to the top of the feeding mechanism 2.

[0032] A spring 221 is installed on the upper end of the transmission block 28. The spring 221 is fixedly connected to the fixing frame 29. The setting of the spring 221 makes the transmission block 28 quickly return to its original position after the transmission shaft 23 moves upward, and makes the structure run stably.

[0033] The feeding block 24 is provided with a feeding groove 241, and the feeding block 25 is provided with an inclined groove 251. The end of the feeding groove 241 is continuous with the opening of the inclined groove 251, and the end of the inclined groove 251 is connected to the opening of the through groove 261. This structure allows the spring to be processed to continuously enter the final through groove 261.

[0034] In summary, by driving the transmission shaft 23 with a motor, the spring to be processed inside the feed block 25 is stuck on the outer shell 21 and does not fall off when the transmission shaft 23 moves downward. At the same time, the opening and closing claw 27 opens, and the spring located in the through groove 261 falls into the hanging frame 11. After the transmission shaft 23 returns to its original position, the torsion spring returns to its original state, so that the bottom end of the feed block 25 is inside the feeding mechanism 2, the spring enters the through groove 261 in the central shaft block 26, the opening and closing claw 27 closes, and the spring falling from the feed block 25 enters the through groove 261, waiting for the next feeding. This completes the controllable automatic intermittent feeding, reduces labor costs, reduces processing time, and increases processing efficiency.

[0035] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A plastic spraying device for spring processing production, comprising a spraying chamber (1), characterized in that: The front end of the plastic spraying chamber (1) is provided with a feeding mechanism (2) for feeding the spring, and a spring hanging rack (11) is arranged in the plastic spraying chamber (1) for placing the spring and feeding into the interior for plastic spraying. The feeding mechanism (2) comprises a fixed block (22), an outer shell (21) is installed on the fixed block (22), a transmission shaft (23) is slidingly installed in the outer shell (21), a feeding block (24) is installed on the outer side of the outer shell (21) for feeding the spring, a feeding block (25) is rotatably installed on the outer shell (21), a connecting disc (231) is arranged on the transmission shaft (23), a fixed frame (29) is fixedly installed in the outer shell (21), a middle shaft block (26) is installed below the fixed frame (29), a through groove (261) is arranged at the center of the middle shaft block (26) for the spring to pass through, and the transmission shaft (23) slides in the through groove (261).

2. The plastic spraying device for spring processing and production according to claim 1, characterized in that: The driving mode of the transmission shaft (23) is motor driving.

3. The plastic spraying device for spring processing and production according to claim 1, characterized in that: A torsional spring is arranged at the connection between the feeding block (25) and the outer shell (21).

4. The plastic spraying device for spring processing and production according to claim 1, characterized in that: The middle shaft block (26) is fixedly connected with the fixed block (22), an opening and closing claw (27) is installed in the fixed block (22), a trapezoidal block (271) is arranged on the opening and closing claw (27), a spring (221) is installed on the side edge of the opening and closing claw (27), the spring (221) is fixedly connected with the fixed block (22), and two groups of transmission blocks (28) are symmetrically and fixedly installed on the side edge of the connecting disc (231), the transmission blocks (28) are installed above the trapezoidal block (271).

5. The plastic spraying device for spring processing and production according to claim 4, characterized in that: A spring (221) is installed on the upper end of the transmission block (28), and the spring (221) is fixedly connected with the fixed frame (29).

6. The plastic spraying device for spring processing and production according to claim 1, characterized in that: An upper feeding groove (241) is arranged on the feeding block (24), an inclined groove (251) is arranged in the feeding block (25), the groove tail position of the upper feeding groove (241) is continuous with the groove opening position of the inclined groove (251), and the groove tail position of the inclined groove (251) is connected with the groove opening position of the through groove (261).

7. The plastic spraying device for spring processing and production according to claim 1, characterized in that: The connecting disc (231) is slidingly connected with the fixed frame (29), and the transmission shaft (23) abuts against the outer wall of the feeding block (25).