High-precision and high-consistency single-side knitting needle bending equipment

Abstract

The utility model relates to the technical field of textile machinery, and discloses high-precision and high-consistency single-face knitting needle bending equipment which comprises a base, a positioning assembly and a rack assembly. According to the high-precision and high-consistency single-side knitting needle bending equipment, through mutual cooperation of the positioning assembly, the rack assembly and the bending assembly, the effect of double-sensor closed-loop control can be achieved, two photoelectric sensors can monitor the positions of the two ends of a single-side knitting needle in real time, and if transverse deviation exists, the single-side knitting needle can be accurately bent. If the single-side knitting needle is pressed, the servo motor is driven to adjust the transverse position of the bending assembly, it is ensured that bending points are accurately aligned, the ultrasonic sensor embedded in the bending cavity can detect the bending height or angle of the single-side knitting needle after pressing is completed, the bending height or angle is fed back to the PLC for secondary correction, such as pressure supplementing work, and the bending accuracy is improved. And finally, high-precision and high-consistency bending work can be achieved, the deformation part of the single-face knitting needle is suspended above the bending cavity in the bending process, collision with the positioning block is avoided, and friction interference is reduced.

Description

Technical Field

[0001] This application relates to the field of textile machinery technology, specifically a high-precision, high-consistency single-sided needle bending device. Background Technology

[0002] In the field of textile machinery, knitting needles are one of the important components of textile machines, and their processing precision and consistency directly affect the quality of textiles.

[0003] As the textile market continues to demand high-quality products, higher requirements are being placed on the processing precision and consistency of knitting needles.

[0004] Existing needle processing equipment mostly adopts traditional mechanical bending methods, which are difficult to meet the requirements of high precision and high consistency. This leads to problems such as size deviation and inconsistent shape of needles during the production process, which in turn affects the operating efficiency of textile machines and product quality. In order to solve the above problems, a high-precision and high-consistency single-sided needle bending device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a high-precision, high-consistency single-sided knitting needle bending device. It employs a combination of photoelectric sensors and ultrasonic sensors to improve bending accuracy and reduce the probability of dimensional deviations and shape inconsistencies in single-sided knitting needles.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-precision, high-consistency single-sided knitting needle bending device, comprising a base, a positioning component, and a frame component. The positioning component includes a positioning block fixedly connected to the upper surface of the base. The upper surface of the positioning block has a bending cavity and two knitting needle positioning grooves. Photoelectric sensors are fixedly connected to the side walls of the two knitting needle positioning grooves that are far apart from each other. An ultrasonic sensor is embedded in the bottom of the bending cavity.

[0007] The frame assembly includes a U-shaped frame fixedly connected to the upper surface of the base. A PLC controller and an operation panel are mounted on the upper surface of the U-shaped frame. A servo motor is fixedly connected to the outer surface of the U-shaped frame. A lead screw is fixedly connected to the output end of the U-shaped frame. A connecting block is threaded onto the outer surface of the lead screw. A bending assembly is mounted on one side of the connecting block.

[0008] Through the above scheme, the positioning component, frame component, and bending component work together to achieve the effect of dual-sensor closed-loop control. Two photoelectric sensors can monitor the position of both ends of the single-sided knitting needle in real time. If there is a lateral offset, the servo motor is driven to adjust the lateral position of the bending component to ensure precise alignment of the bending point. The ultrasonic sensor embedded in the bending cavity can detect the bending height or angle of the single-sided knitting needle after bending and feed it back to the PLC controller for secondary correction, such as additional bending. Ultimately, high-precision and high-consistency bending can be achieved. Furthermore, during bending, the deformed part of the single-sided knitting needle is suspended above the bending cavity to avoid collision with the positioning block and reduce friction interference. The internal space of the bending cavity allows the single-sided knitting needle to bend naturally, preventing stress concentration caused by forced deformation.

[0009] Furthermore, a polyurethane pad is fixedly connected to the inner wall of each of the needle positioning slots, and the photoelectric sensor, ultrasonic sensor, operation panel and servo motor are all electrically connected to the PLC controller.

[0010] The above solution, through the addition of polyurethane pads, can improve the anti-slip effect of the inner wall of the needle positioning groove, further optimizing the bending accuracy of single-sided needles.

[0011] Furthermore, the two ends of the lead screw are respectively rotatably sleeved in the inner walls of the two sides of the U-shaped frame, and two guide rods are installed on the inner side of the U-shaped frame.

[0012] By defining the relationship between the two ends of the lead screw and the U-shaped frame, the stability of the lead screw can be improved, and the actual use effect can be optimized.

[0013] Furthermore, the two sides of the outer surface of the connecting block are slidably sleeved on the outer surfaces of the two guide rods, and the outer surface of the lead screw is fixedly connected with two limiting rings.

[0014] The above scheme limits the range of movement of the connecting block by setting a limiting ring, which is beneficial for precise bending work. By limiting the relationship between the guide rod and the connecting block, the connecting block can move stably when the lead screw rotates.

[0015] Furthermore, the bending assembly includes a connecting plate welded to one side of the connecting block, a hydraulic rod fixedly connected to the outer surface of the connecting plate, and the output end of the hydraulic rod passing through the connecting plate and fixedly connected to a first flange.

[0016] With the above solution, when the hydraulic rod is activated, it can drive the first flange to move, thereby facilitating the subsequent stable bending of the single-sided knitting needle.

[0017] Furthermore, a bending die head is provided below the connecting plate, and a second flange is fixedly connected to the top of the bending die head. The bending die head and the hydraulic rod are connected through the first flange and the second flange.

[0018] The above solution allows for a stable connection between the bending die head and the hydraulic rod by setting a first flange and a second flange, and also facilitates the replacement of the bending die head model, making it more practical.

[0019] Furthermore, an anti-slip pad is fixedly connected to the bottom surface of the base, and the bottom surface of the anti-slip pad is provided with evenly distributed anti-slip patterns. Mounting holes are provided at the four corners of the base.

[0020] The above solution improves the stability of the base positioning by using anti-slip pads, and the mounting holes allow the base to be positioned in a suitable location, facilitating subsequent bending work.

[0021] Furthermore, a first storage box and a second storage box are fixedly connected to the upper surface of the base, with the first storage box and the second storage box located on both sides of the positioning block, respectively.

[0022] The above solution allows for convenient placement of single-sided knitting needles to be bent by setting up a first storage box, and convenient storage of single-sided knitting needles that have been bent by setting up a second storage box, thereby improving the actual use effect of the device.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This high-precision, high-consistency single-sided knitting needle bending device achieves a dual-sensor closed-loop control effect through the coordinated operation of positioning components, frame components, and bending components. Two photoelectric sensors monitor the positions of both ends of the single-sided knitting needle in real time. If there is a lateral offset, a servo motor is driven to adjust the lateral position of the bending component to ensure precise alignment of the bending point. The ultrasonic sensor embedded inside the bending cavity detects the bending height or angle of the single-sided knitting needle after bending and feeds it back to the PLC controller for secondary correction, such as additional bending. Ultimately, it can achieve high-precision, high-consistency bending. Furthermore, during bending, the deformed part of the single-sided knitting needle is suspended above the bending cavity to avoid collision with the positioning block and reduce friction interference. The internal space of the bending cavity allows the single-sided knitting needle to bend naturally, preventing stress concentration caused by forced deformation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application;

[0027] Figure 3 This is a top view of the overall structure of this application.

[0028] Figure 4 This is a partial cross-sectional planar structural diagram of the structure of this application;

[0029] Figure 5 This is a partial top view of the structure of this application.

[0030] In the picture:

[0031] 1. Base; 2. Positioning assembly; 201. Positioning block; 202. Bending cavity; 203. Knitting needle positioning groove; 204. Photoelectric sensor; 205. Ultrasonic sensor; 206. Polyurethane pad; 3. Frame assembly; 301. U-shaped frame; 302. PLC controller; 303. Operation panel; 304. Servo motor; 305. Lead screw; 306. Guide rod; 307. Connecting block; 308. Limiting ring; 4. Bending assembly; 401. Connecting plate; 402. Hydraulic rod; 403. Bending die head; 404. First flange; 405. Second flange; 5. Anti-slip pad; 6. Mounting hole; 7. First storage box; 8. Second storage box. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 3 and Figure 5 This embodiment discloses a high-precision, high-consistency single-sided knitting needle bending device, comprising a base 1, a positioning component 2, and a frame component 3. The positioning component 2 includes a positioning block 201 fixedly connected to the upper surface of the base 1. The upper surface of the positioning block 201 has a bending cavity 202 and two knitting needle positioning slots 203. Photoelectric sensors 204 are fixedly connected to the side walls of the two knitting needle positioning slots 203 that are far apart from each other. The photoelectric sensors 204 can detect the position of the single-sided knitting needle placed in the knitting needle positioning slot 203, which facilitates the subsequent adjustment of the position of other components. This ensures that the bending points of multiple single-sided knitting needles are accurately aligned, improving the bending accuracy and consistency. An ultrasonic sensor 205 is embedded in the bottom of the bending cavity 202. The ultrasonic sensor 205 can detect the bending height or angle of the single-sided knitting needle, which facilitates the subsequent secondary pressing work, further improving the bending accuracy and consistency.

[0034] Please see Figure 1 and Figure 2 An anti-slip pad 5 is fixedly connected to the bottom surface of the base 1. The bottom surface of the anti-slip pad 5 has evenly distributed anti-slip textures. Mounting holes 6 are provided at the four corners of the base 1. The anti-slip pad 5 can improve the positioning stability of the base 1. The mounting holes 6 can be used to position the base 1 in a suitable position, which is convenient for subsequent bending work. A first storage box 7 and a second storage box 8 are fixedly connected to the upper surface of the base 1. The first storage box 7 and the second storage box 8 are located on both sides of the positioning block 201. The first storage box 7 can be used to place the single-sided knitting needles to be bent. The second storage box 8 can be used to store the single-sided knitting needles that have been bent, which improves the actual use effect of the device.

[0035] Please see Figure 2 , Figure 3 and Figure 4 The frame assembly 3 includes a U-shaped frame 301 fixedly connected to the upper surface of the base 1. A PLC controller 302 and an operation panel 303 are mounted on the upper surface of the U-shaped frame 301. A servo motor 304 is fixedly connected to the outer surface of the U-shaped frame 301. A lead screw 305 is fixedly connected to the output end of the U-shaped frame 301. A connecting block 307 is threaded onto the outer surface of the lead screw 305. The two ends of the lead screw 305 are respectively rotatably sleeved in the inner walls on both sides of the U-shaped frame 301. Two guide rods 306 are installed on the inner side of the U-shaped frame 301 to limit the lead screw 304. The relationship between the two ends of the lead screw 305 and the U-shaped frame 301 improves the stability of the lead screw 305 and optimizes the actual use effect. The two sides of the outer surface of the connecting block 307 are slidably sleeved on the outer surfaces of the two guide rods 306. Two limiting rings 308 are fixedly connected to the outer surface of the lead screw 305. The limiting rings 308 can limit the range of movement of the connecting block 307, which is beneficial for precise bending work. By limiting the relationship between the guide rods 306 and the connecting block 307, the connecting block 307 can move stably when the lead screw 305 rotates.

[0036] Please see Figure 2 , Figure 3 and Figure 4A bending assembly 4 is installed on one side of the connecting block 307. When the connecting block 307 moves, the lateral position of the bending assembly 4 can be adjusted, thereby achieving high-precision and high-consistency bending work. The bending assembly 4 includes a connecting plate 401 welded to one side of the connecting block 307. A hydraulic rod 402 is fixedly connected to the outer surface of the connecting plate 401. The output end of the hydraulic rod 402 passes through the connecting plate 401 and is fixedly connected to a first flange 404. When the hydraulic rod 402 is activated, it can drive the first flange 404 to move. This facilitates the subsequent stable bending of the single-sided knitting needles. A bending die head 403 is provided below the connecting plate 401. A second flange 405 is fixedly connected to the top of the bending die head 403. The bending die head 403 and the hydraulic rod 402 are connected through a first flange 404 and a second flange 405. By setting the first flange 404 and the second flange 405, the bending die head 403 and the hydraulic rod 402 can be stably connected, and it is also convenient to replace the model of the bending die head 403, making it more practical.

[0037] Please see Figure 2 , Figure 3 and Figure 4 Each needle positioning groove 203 has a polyurethane pad 206 fixedly connected to its inner wall. The photoelectric sensor 204, ultrasonic sensor 205, operation panel 303, and servo motor 304 are all electrically connected to the PLC controller 302. The polyurethane pads 206 improve the anti-slip effect of the inner wall of the needle positioning groove 203, further optimizing the bending accuracy of the single-sided needle. By defining the relationship between the corresponding components and the PLC controller 302, the PLC controller 302 can receive signals and control the corresponding components to operate, optimizing the bending adjustment process. The photoelectric sensor 204 detects the position of the single-sided needle and feeds the data back to the PLC controller 302. The PLC controller 302 then controls the servo motor 304 to adjust the lateral position of the bending component 4, and then performs the bending operation. Simultaneously, the ultrasonic sensor 205 detects the bending status of the single-sided needle and feeds the signal back to the PLC controller 302 to determine whether a secondary drive of the hydraulic rod 402 is needed for additional pressure. The entire process forms a "detection-adjustment-bending-re-inspection" cycle. The closed-loop control ensures that the bending angle and position of each single-sided knitting needle are consistent.

[0038] It should be noted that the photoelectric sensor 204 determines the position by emitting infrared light / laser and based on the reflected signal after the single-sided knitting needle is blocked. It is a non-contact detection method with no mechanical wear. The ultrasonic sensor 205, on the other hand, measures the height / angle of the single-sided knitting needle after it is bent by emitting ultrasonic waves and receiving the echo. It is not affected by the reflectivity of the material.

[0039] In this embodiment, a high-precision, high-consistency single-sided knitting needle bending device, through the cooperation of the positioning component 2, the frame component 3, and the bending component 4, can achieve the effect of dual-sensor closed-loop control. Two photoelectric sensors 204 can monitor the position of both ends of the single-sided knitting needle in real time. If there is a lateral offset, the servo motor 304 is driven to adjust the lateral position of the bending component 4 to ensure that the bending point is accurately aligned. The ultrasonic sensor 205 embedded in the bending cavity 202 can detect the bending height or angle of the single-sided knitting needle after bending and feed it back to the PLC controller 302 for secondary correction, such as additional pressing. Finally, high-precision, high-consistency bending can be achieved. Furthermore, during bending, the deformed part of the single-sided knitting needle is suspended above the bending cavity 202 to avoid collision with the positioning block 201 and reduce friction interference. The internal space of the bending cavity 202 allows the single-sided knitting needle to bend naturally, preventing stress concentration caused by forced deformation.

[0040] The working principle of the above embodiment is as follows: The two ends of a single-sided knitting needle are horizontally placed in the two needle positioning grooves 203 on the upper surface of the positioning block 201. The middle part of the single-sided knitting needle is suspended above the bending cavity 202. The photoelectric sensor 204 on the inner wall of the needle positioning groove 203 detects the position of the two ends of the single-sided knitting needle and transmits the detection data to the PLC controller 302 for processing. If the single-sided knitting needle is correctly positioned without offset, the equipment enters the bending process. If lateral offset is detected, the PLC controller 302 will immediately control the servo motor 304 to start, adjusting the lateral position of the bending assembly 4 to ensure precise alignment of the bending point. When the servo motor 304 starts, it drives the lead screw 305 to rotate. The rotation of the lead screw 305 enables the connecting block 307 to move along... The guide rod 306 moves to adjust the lateral position of the bending assembly 4. After adjustment, the PLC controller 302 drives the hydraulic rod 402 to work and drive the bending die head 403 to press the suspended part of the single-sided knitting needle vertically downward. During the bending process, the bending cavity 202 provides deformation space, allowing the single-sided knitting needle to bend naturally and avoid interference with the positioning block 201. After bending, the ultrasonic sensor 205 at the bottom of the bending cavity 202 can detect the bending height or angle of the single-sided knitting needle. If the angle is qualified, the bending work is completed. If it is not qualified, the PLC controller 302 will drive the hydraulic rod 402 and the bending die head 403 again to perform a second pressing work until it meets the standard. The whole process forms a closed-loop control of "detection-adjustment-bending-re-inspection" to ensure that the bending angle and position of each single-sided knitting needle are consistent.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision, high-consistency single-sided needle bending device, comprising a base (1), a positioning assembly (2), and a frame assembly (3), characterized in that: The positioning component (2) includes a positioning block (201) fixedly connected to the upper surface of the base (1). The upper surface of the positioning block (201) has a bending cavity (202) and two needle positioning grooves (203). Photoelectric sensors (204) are fixedly connected to the side walls of the two needle positioning grooves (203) that are far apart from each other. An ultrasonic sensor (205) is embedded in the bottom of the bending cavity (202). The frame assembly (3) includes a U-shaped frame (301) fixedly connected to the upper surface of the base (1). A PLC controller (302) and an operation panel (303) are installed on the upper surface of the U-shaped frame (301). A servo motor (304) is fixedly connected to the outer surface of the U-shaped frame (301). A lead screw (305) is fixedly connected to the output end of the U-shaped frame (301). A connecting block (307) is threadedly connected to the outer surface of the lead screw (305). A bending assembly (4) is installed on one side of the connecting block (307).

2. The high-precision, high-consistency single-sided needle bending device according to claim 1, characterized in that: Each of the needle positioning slots (203) has a polyurethane pad (206) fixedly connected to its inner wall. The photoelectric sensor (204), ultrasonic sensor (205), operation panel (303) and servo motor (304) are all electrically connected to the PLC controller (302).

3. The high-precision, high-consistency single-sided needle bending device according to claim 1, characterized in that: The two ends of the lead screw (305) are respectively rotatably sleeved in the inner walls of the two sides of the U-shaped frame (301), and two guide rods (306) are installed on the inner side of the U-shaped frame (301).

4. The high-precision, high-consistency single-sided needle bending device according to claim 3, characterized in that: The two sides of the outer surface of the connecting block (307) are slidably sleeved on the outer surfaces of the two guide rods (306), and the outer surface of the lead screw (305) is fixedly connected with two limiting rings (308).

5. The high-precision, high-consistency single-sided needle bending device according to claim 1, characterized in that: The bending assembly (4) includes a connecting plate (401) welded to one side of the connecting block (307). A hydraulic rod (402) is fixedly connected to the outer surface of the connecting plate (401). The output end of the hydraulic rod (402) passes through the connecting plate (401) and is fixedly connected to a first flange (404).

6. The high-precision, high-consistency single-sided needle bending device according to claim 5, characterized in that: The connecting plate (401) is provided with a bending die head (403) below it. The top of the bending die head (403) is fixedly connected to a second flange (405). The bending die head (403) and the hydraulic rod (402) are connected through a first flange (404) and a second flange (405).

7. The high-precision, high-consistency single-sided needle bending device according to claim 1, characterized in that: The base (1) is fixedly connected to an anti-slip pad (5), and the bottom surface of the anti-slip pad (5) is provided with uniformly distributed anti-slip patterns. The base (1) is provided with mounting holes (6) at its four corners.

8. The high-precision, high-consistency single-sided needle bending device according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a first storage box (7) and a second storage box (8), which are located on both sides of the positioning block (201).

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