Length sorting device for wire rod production

Abstract

The utility model relates to the length sorting device of screw rod production, including support frame and conveyer belt, the inside installation of support frame has the conveyer belt for transmission screw rod, the outer wall of conveyer belt installs several groups of the rod frame for placing the stable conveyance of screw rod, the top of support frame is equipped with two groups of link plates, and the inner wall of two groups of link plates is fixed with the detection module group that is used for detecting the length of screw rod and carries out sorting, the utility model discloses a conveyer belt is used for conveying screw rod, and the length of screw rod is accurately measured through detection module, and the automatic sorting of screw rod is carried out, reduces the error of manual intervention, ensures that the length of every screw rod meets the standard, improves the overall quality of product, secondly, the uninterrupted continuous conveying of conveyer belt can be realized, reduces manual intervention, avoids the time delay caused by manual operation, realizes batch sorting work, improves the screw rod sorting speed.

Description

Technical Field

[0001] This utility model relates to the field of lead screw manufacturing technology, and in particular to a length sorting device for lead screw manufacturing. Background Technology

[0002] A lead screw, also known as a screw rod or threaded shaft, is a mechanical component with a helical thread. It is typically used to convert rotary motion into linear motion, or vice versa. Lead screws are widely used in mechanical transmission, precision positioning, and various automated equipment. During the lead screw production process, manual measurement and sorting are usually employed to classify lead screws of different lengths to meet quality control and specification requirements in production.

[0003] The existing lead screw production and sorting process requires a lot of time for measurement and judgment through manual sorting. The whole process is time-consuming and cannot achieve large-scale sorting work, which reduces the sorting efficiency of lead screws. In addition, manual sorting may produce certain errors, affecting the overall quality of the product. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing lead screw production and sorting requires a lot of time for measurement and judgment through manual measurement and sorting, which reduces the sorting rate of lead screws. In addition, manual sorting may produce certain errors, affecting the overall quality of the product.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a length sorting device for lead screw production, including a support frame and a conveyor belt; the support frame is equipped with a conveyor belt for transmitting lead screws, and the outer wall of the conveyor belt is equipped with several sets of rod-holding frames for stable conveying of lead screws. Two sets of connecting plates are provided above the support frame, and the inner walls of the two sets of connecting plates are fixed with a detection module for detecting the length of lead screws and sorting them.

[0006] The beneficial effects of this utility model are as follows: by using a conveyor belt to transport the lead screws, the length of the lead screws is accurately measured by the detection module and the lead screws are automatically sorted, reducing errors caused by manual intervention, ensuring that the length of each lead screw meets the standard, and improving the overall quality of the product. Secondly, the use of a conveyor belt can achieve uninterrupted continuous transportation, reducing manual intervention, avoiding time delays caused by manual operation, realizing batch sorting work, and improving the lead screw sorting speed.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a connecting block is fixed to the outer end of the support frame, and a cylinder is installed on the upper end of the connecting block. A piston rod is provided at one end of the cylinder, and a push plate is fixed at the end of the piston rod away from the cylinder.

[0009] Furthermore, each of the several sets of rod-mounting frames has a movable block inside, and two sets of rebound springs are installed inside the rod-mounting frames. The two sets of rebound springs are fixedly connected to the movable blocks, and spring rubber dampers are installed inside the rebound springs.

[0010] Furthermore, a positioning block is fixed to the upper end of the connecting block on one side of the piston rod, and the positioning block is fixedly connected to the connecting plate. A baffle is fixed to the upper end of the connecting block on one side of the cylinder.

[0011] Furthermore, a control module is installed on the outer wall of the connecting block and the baffle. The control module is electrically connected to the cylinder and the detection module. A load-bearing plate is fixed at the lower end of the support frame.

[0012] Furthermore, a roller is installed inside the conveyor belt, and a drive motor is installed at one end of the roller on the outer wall of the support frame. The roller is electrically connected to the output end of the drive motor.

[0013] Furthermore, a guide plate is fixed to the upper end of the support frame below the connecting plate, and a recycling box for collecting defective lead screws is fixed to one side of the guide plate at the outer end of the support frame.

[0014] Furthermore, a collection box for collecting qualified lead screws is installed at one end of the support frame. Both the collection box and the outer end of the support frame are fixed with a docking plate. Limit bolts are installed at the inner corners of the docking plate. The collection box is threadedly fixed to the support frame by the limit bolts.

[0015] The beneficial effects of adopting the above-mentioned further solution are: when the detection module detects that the lead screw length is not up to standard, the cylinder-connected piston rod reacts quickly to drive the push plate to push the lead screw into the recycling box for recycling, which is seamlessly connected with the continuous transmission of the conveyor belt, ensuring the continuity of the production process and improving the lead screw sorting efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the length sorting device for producing lead screws according to this utility model; Figure 2 This is a schematic diagram of the connecting plate structure of this utility model; Figure 3 This is a schematic diagram of the piston rod structure of this utility model; Figure 4 This is a schematic diagram of the rod-mounting frame structure of this utility model; Figure 5 This is a schematic diagram of the detection module structure of this utility model; The attached diagram lists the components represented by each number as follows: 1. Support frame; 2. Conveyor belt; 3. Positioning block; 4. Connecting plate; 5. Detection module; 6. Connecting block; 7. Cylinder; 8. Piston rod; 9. Push plate; 10. Baffle; 11. Control module; 12. Load-bearing plate; 13. Rod frame; 14. Movable block; 15. Rebound spring; 16. Drive motor; 17. Guide plate; 18. Recycling bin; 19. Collection bin; 20. Connecting plate. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.

[0019] Lead screws typically have high-precision threads with very small pitch error and radial runout, enabling precise positioning and transmission. Lead screw threads can be single-start or multi-start; single-start threads are suitable for applications requiring high precision, while multi-start threads can achieve faster transmission speeds at the same pitch. Lead screw threads come in various shapes, commonly including trapezoidal threads, rectangular threads, and ball threads. Trapezoidal and rectangular threads are mainly used in general lead screw drives, while ball threads are used in ball screw drives. Ball screws reduce friction by placing balls between the nut and the screw, thereby improving transmission efficiency and precision.

[0020] The choice of material for the lead screw is crucial to its performance. Generally, lead screws are made of high-strength steel or stainless steel, which possess excellent mechanical properties and wear resistance, enabling them to withstand large loads and prolonged operation. In some specialized applications, such as aerospace, lead screws may utilize high-performance materials like titanium alloys to meet higher strength and lightweight requirements. The manufacturing process of lead screws is also very complex, requiring multiple steps including precision turning, grinding, and heat treatment. Turning is used to machine the basic shape and threads of the lead screw, grinding is used to improve thread accuracy and surface finish, and heat treatment is used to increase the hardness and strength of the lead screw.

[0021] Lead screws have high transmission efficiency, typically exceeding 70%, especially in ball screws where rolling friction is far less than sliding friction, resulting in efficiency exceeding 90%. The transmission accuracy of lead screws can be controlled in various ways, such as adjusting pitch error, thread shape, and manufacturing precision. The transmission speed of a lead screw can be adjusted by changing the pitch; a larger pitch achieves a faster transmission speed but with relatively lower accuracy, while a smaller pitch achieves higher accuracy but a slower transmission speed.

[0022] Lead screws have a wide range of applications. In the machine tool industry, they are used to control the feed motion of cutting tools, ensuring the dimensional accuracy and surface quality of machined parts through precise pitch and transmission precision. In automated equipment, lead screws are often used to drive the movement of robotic arms, achieving precise position control. In the aerospace field, lead screws are used in precision positioning systems, such as the adjustment of satellite antennas and the transmission of flight control systems. Furthermore, lead screws are widely used in electronic equipment, medical devices, robotics, and other fields.

[0023] Maintaining a lead screw is relatively simple, but it requires regular inspection and maintenance. First, check the thread wear; if severe wear is found, replace the lead screw or nut promptly. Second, lubricate the lead screw regularly to reduce friction and wear, extending its service life. The choice of lubricant is also crucial; select a suitable lubricant based on the lead screw's working environment and materials. In some high-precision applications, periodic calibration of the lead screw's accuracy is also necessary to ensure long-term stable operation.

[0024] like Figures 1-5 As shown, the system includes a support frame 1 and a conveyor belt 2. The conveyor belt 2 for transmitting lead screws is installed inside the support frame 1. Several sets of rod holders 13 for placing lead screws for stable transport are installed on the outer wall of the conveyor belt 2. Two sets of connecting plates 4 are provided above the support frame 1. The inner walls of the two sets of connecting plates 4 are fixed with a detection module 5 for sorting by detecting the length of the lead screws. A connecting block 6 is fixed to the outer end of the support frame 1. A cylinder 7 is installed at the upper end of the connecting block 6. A piston rod 8 is provided at one end of the cylinder 7. A push plate 9 is fixed at the end of the piston rod 8 away from the cylinder 7. The cylinder 7 and the piston rod 8 can quickly respond to the signal of the detection module 5 and drive the push plate 9 to push out the unqualified lead screws from the conveyor belt 2, ensuring the efficiency and timeliness of the sorting process.

[0025] like Figures 2-4As shown, each of the several sets of rod frames 13 has a movable block 14 inside. Two sets of rebound springs 15 are installed inside the rod frames 13. The two sets of rebound springs 15 are fixedly connected to the movable blocks 14. The rebound springs 15 have spring rubber dampers inside. The upper end of the connecting block 6 is fixed to a positioning block 3 on one side of the piston rod 8. The positioning block 3 is fixedly connected to the connecting plate 4. The upper end of the connecting block 6 is fixed to a baffle 10 on one side of the cylinder 7. The baffle 10 can prevent the cylinder 7 from being disturbed by external factors during operation, protect the normal operation of the cylinder 7, and provide additional support for the cylinder 7 to enhance the stability of the device. The outer walls of the connecting block 6 and the baffle 10 are equipped with a control module 11. The control module 11 is electrically connected to the cylinder 7 and the detection module 5. The lower end of the support frame 1 is fixed with a load-bearing plate 12. The control module 11 realizes precise control of the cylinder 7 and the detection module 5, and can react quickly according to the detection results, improving the automation and accuracy of sorting.

[0026] like Figures 3-5 As shown, a roller is installed inside the conveyor belt 2. A drive motor 16 is mounted on one end of the roller, located on the outer wall of the support frame 1. The roller is electrically connected to the output end of the drive motor 16. The cooperation between the drive motor 16 and the roller enables the conveyor belt 2 to operate smoothly and continuously, ensuring that the lead screws can pass smoothly through the detection module 5 for sorting, thus improving production efficiency. A guide plate 17 is fixed at the upper end of the support frame 1, below the connecting plate 4. A recycling box 18 for collecting defective lead screws is fixed on one side of the guide plate 17, located at the outer end of the support frame 1. It can help the lead screw slide smoothly into the recycling bin 18, avoiding the lead screw from scattering or piling up during the sorting process, thus improving the sorting efficiency and cleanliness. A collection bin 19 for collecting qualified lead screws is installed at one end of the support frame 1. Both the collection bin 19 and the outer end of the support frame 1 are fixed with a docking plate 20. Limiting bolts are installed at the inner corner of the docking plate 20. The collection bin 19 is threadedly fixed to the support frame 1 by the limiting bolts. The collection bin 19 provides a uniform collection position for qualified lead screws, which is convenient for subsequent packaging and transportation, and improves the continuity of the production process.

[0027] Working principle: When sorting the lead screw by length is required, the lead screw is placed in the rod holder 13 of the conveyor belt 2. The conveyor belt 2 starts to run under the drive motor 16, and the lead screw is smoothly conveyed forward. When the lead screw is conveyed to the bottom of the detection module 5, the detection module 5 accurately measures the length of the lead screw. If the detection result shows that the length of the lead screw meets the standard, the conveyor belt 2 will continue to convey the lead screw to the collection box 19 at one end of the support frame 1. The lead screw finally falls into the collection box 19, completing the sorting process.

[0028] When the detection module 5 detects that the lead screw length is not up to standard, the control module 11 will quickly issue a command. After receiving the signal, the cylinder 7 will immediately activate the piston rod 8, driving the push plate 9 to move forward. After the push plate 9 contacts the defective lead screw, it will push it out of the storage frame and push the lead screw along the direction of the guide plate 17 into the recycling box 18 for recycling. After the piston rod 8 retracts, the return spring 15 will retract through the movable block 14. Next, the collection box 19 is threadedly fixed to the support frame 1 with limit bolts to ensure stable collection. This facilitates quick disassembly and replacement of the collection box 19 after sufficient collection, allowing for subsequent processing or transportation of the sorted lead screws. Repeating the above operations achieves rapid sorting of the lead screws.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A length sorting device for lead screw production, characterized in that, Includes a support frame (1) and a conveyor belt (2); the support frame (1) is equipped with a conveyor belt (2) for transmitting lead screws, and the outer wall of the conveyor belt (2) is equipped with several sets of rod-positioning frames (13) for placing lead screws for smooth transmission. The support frame (1) is equipped with two sets of connecting plates (4) above it. The inner wall of the two sets of connecting plates (4) is fixed with a detection module (5) for sorting the lead screws. The outer end of the support frame (1) is fixed with a connecting block (6). The upper end of the connecting block (6) is equipped with a cylinder (7). One end of the cylinder (7) is equipped with a piston rod (8). The end of the piston rod (8) away from the cylinder (7) is fixed with a push plate (9). The interior of each of the several sets of rod-positioning frames (13) is equipped with a movable block (14). The interior of the rod-positioning frames (13) is equipped with two sets of rebound springs (15). The two sets of rebound springs (15) are fixedly connected to the movable block (14). The interior of the rebound springs (15) is equipped with a spring rubber damper.

2. The length sorting device for lead screw production according to claim 1, characterized in that, The upper end of the connecting block (6) is fixed with a positioning block (3) on one side of the piston rod (8). The positioning block (3) is fixedly connected to the connecting plate (4). The upper end of the connecting block (6) is fixed with a baffle (10) on one side of the cylinder (7).

3. The length sorting device for lead screw production according to claim 2, characterized in that, A control module (11) is installed on the outer wall of the connecting block (6) and the baffle (10). The control module (11) is electrically connected to the cylinder (7) and the detection module (5). A load-bearing plate (12) is fixed at the lower end of the support frame (1).

4. The length sorting device for lead screw production according to claim 1, characterized in that, The conveyor belt (2) is equipped with a roller inside. One end of the roller is located on the outer wall of the support frame (1) and a drive motor (16) is installed thereon. The roller is electrically connected to the output end of the drive motor (16).

5. The length sorting device for lead screw production according to claim 1, characterized in that, A guide plate (17) is fixed at the upper end of the support frame (1) below the connecting plate (4), and a recycling box (18) for collecting defective screws is fixed on one side of the guide plate (17) at the outer end of the support frame (1).

6. The length sorting device for lead screw production according to claim 1, characterized in that, A collection box (19) for collecting qualified lead screws is installed at one end of the support frame (1). Both the collection box (19) and the outer end of the support frame (1) are fixed with a docking plate (20). Limiting bolts are installed at the inner corner of the docking plate (20). The collection box (19) is threadedly fixed to the support frame (1) by the limiting bolts.

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