A hosiery machine and method for detecting hosiery according to frequency

Abstract

The application discloses a hosiery machine and a detection method for detecting socks according to frequency, and belongs to the technical field of hosiery machines. The hosiery machine is provided with a sock suction device on the side, the sock suction device comprises a gas pump for providing gas suction force, a first gas pipe and a second gas pipe for sucking socks, and a blanking cylinder is arranged between the first gas pipe and the second gas pipe. The side of the hosiery machine is provided with a blanking disc for detecting socks according to frequency, the blanking disc is controlled to move to the lower side of the blanking cylinder to obtain the socks to be detected, then the blanking disc is driven to move away from the lower side of the blanking cylinder under the driving of the driving device, and the blanking cylinder can output the socks produced by the hosiery machine without being affected. The frequency in the socks detected according to frequency is the production quantity frequency of the socks or the production time frequency of the hosiery machine. The production quantity frequency of the socks is that the socks are detected once for every set production quantity, and the production time frequency of the hosiery machine is that the socks are detected once for every set production time. The blanking disc for detecting socks according to frequency solves the technical problem that the socks produced by the hosiery machine cannot be detected according to frequency.

Description

Technical Field

[0001] This application relates to the field of sock knitting technology, and more specifically, to a sock knitting machine and a method for detecting socks based on frequency. Background Technology

[0002] While conventional fully computerized sock knitting machines on the market possess functions such as sock knitting and sewing, they face numerous problems in actual production. When socks are produced continuously, workers need to periodically perform manual sampling inspections to assess product quality and adjust machine parameters based on the results. Since a worker typically manages 5-20 machines simultaneously, the inspection time becomes highly unpredictable. Furthermore, all produced socks are collected in a single collection box, making it difficult to accurately pinpoint the production area of ​​problematic socks when quality issues are discovered. This inspection method not only increases the workload for workers but also fails to reflect the overall trend of quality problems in individual socks, hindering targeted optimization of machine production parameters. How to achieve timed automatic sampling and inspection of socks and accurately reflect the overall production quality is a pressing technical challenge that needs to be addressed in this field. Summary of the Invention

[0003] The purpose of this application is to provide a sock machine and its testing method based on frequency detection of socks. It has the advantages of enabling automatic sampling and testing of socks at regular intervals, making it easier for staff to accurately determine the distribution range of quality problems, and thus adjust the production parameters of the sock machine accordingly.

[0004] This application provides a sock machine for frequency-based sock detection, comprising a sock machine with a sock suction device on its side. The suction device includes a first air pipe and a second air pipe, which are connected by a gas pump to provide suction for picking up socks. A feed cylinder is provided between the first and second air pipes. A feed tray for frequency-based sock detection is provided on the side of the sock machine. The feed tray is controlled by a drive device to move below the feed cylinder to pick up the socks to be detected, and then moves away from below the feed cylinder under the drive device, without affecting the output of socks produced by the sock machine. The frequency in the frequency-based sock detection is either the production quantity frequency of socks or the production time frequency of the sock machine. The production quantity frequency is once for every set quantity of socks produced, and the production time frequency is once for every set production time. The quantity for once for every set quantity of socks produced can generally be ten, fifty, or one hundred socks produced, and the set production time can be every half hour, one hour, or two hours. This invention solves the technical problem that sock machines cannot detect multiple socks according to a specific frequency.

[0005] Furthermore, this application also proposes that the driving device includes a material tray horizontal driving device or a material tray rotation driving device. The material tray horizontal driving device includes a sliding cylinder connected to the guide rail, and the sliding cylinder is connected to the material tray. The material tray rotation driving device includes a rotary cylinder, and the rotary cylinder is connected to the material tray through a rotary arm.

[0006] Furthermore, this application also proposes that a metal frame be fitted around the outer periphery of the material tray, and the metal frame be fixedly connected to a rotating arm or a sliding cylinder.

[0007] Furthermore, this application also proposes that the material tray horizontal drive device or the material tray rotation drive device are both connected to the mounting bracket, and the mounting bracket is connected to the sock machine and the material drop cylinder respectively. The material drop cylinder is a conical cylindrical structure with the top smaller than the bottom. The top side of the conical cylindrical structure is connected to the first air pipe, the top side of the conical cylindrical structure is connected to the first air pipe, and the bottom side of the conical cylindrical structure is connected to the second air pipe.

[0008] Furthermore, this application also proposes that the bottom surface of the conical cylindrical structure is connected to a spring-controlled flap that opens and closes. The flap and the bottom surface of the conical cylindrical structure are normally closed under the control of the spring. When the socks are sucked in from the first air tube and fall onto the flap, the weight of the socks overcomes the spring force and falls into the collection frame on the side of the sock machine.

[0009] A method for detecting socks based on frequency includes the following steps:

[0010] Step 1: After the sock machine completes the knitting of the socks through the sock machine control system, the sock transfer arm transfers the socks to the sewing device to complete the sewing of the socks. Then the socks are sucked into the feed tube through the first air tube and then fall into the collection box.

[0011] Step 2: After the sock machine produces the set number of socks, the material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder as the socks to be inspected, and then the material tray resets and moves away from the drop cylinder.

[0012] Step 3: After completing Step 2, repeat Step 1 repeatedly. Based on the quality of the socks being tested in the tray, the staff will determine the quality distribution of the socks in the entire collection box and then adjust the sock machine production parameters.

[0013] Another method for detecting socks based on frequency includes the following steps.

[0014] Step 1: After the sock machine completes the knitting of the socks through the sock machine control system, the sock transfer arm transfers the socks to the sewing device to complete the sewing of the socks. Then the socks are sucked into the feed tube through the first air tube and then fall into the collection box.

[0015] Step 2: After the socks are set to be produced, the material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder as the socks to be tested. Then the material tray resets and moves away from the drop cylinder.

[0016] Step 3: After completing Step 2, repeat Step 1 repeatedly. Based on the quality of the socks being tested in the tray, the staff will determine the quality distribution of the socks in the entire collection box and then adjust the sock machine production parameters.

[0017] As can be seen from the above, the sock machine and its testing method based on frequency detection provided in this application automatically extracts test samples according to the production quantity or time frequency by setting a material tray controlled by the drive device. This allows the staff to accurately determine the overall quality distribution range of the socks through the test samples. It has the advantages of realizing timed and quantitative automatic sampling and testing, and facilitating targeted optimization of production parameters. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a sock-receiving machine that detects the sock-receiving status of socks based on frequency, according to the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of a sock machine that detects the non-sock-connecting state of socks based on frequency, according to the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the material tray horizontal drive device in this invention;

[0022] Figure 4 This is a schematic diagram of the material tray rotation drive device in this invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the material discharge cylinder in this invention. Detailed Implementation

[0024] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In existing technologies, fully computerized sock knitting machines achieve continuous production through automated knitting and sewing functions, with finished socks collected into a unified container via pneumatic pipes. Because one operator needs to manage multiple machines simultaneously, sampling inspection is subject to temporal randomness, making it difficult to trace quality anomalies. Traditional manual sampling methods require frequent interruptions to equipment operation and cannot establish a correlation between test samples and production batches, affecting the timeliness of parameter adjustments.

[0026] To address the aforementioned issues, those skilled in the art have focused on how to achieve regular sampling without disrupting continuous production. The core challenge lies in maintaining unobstructed material feeding channels while periodically extracting samples for testing. Analysis of production cycle characteristics reveals that sampling periods can be set based on time or output, ensuring even distribution of test samples across different production stages. Further consideration of mechanical feasibility necessitates the design of a movable carrier to briefly receive material during specific cycles, followed by rapid repositioning to avoid obstructing normal material discharge.

[0027] Therefore, this application proposes a sock machine for detecting socks based on frequency, including a sock machine 7, a sock suction device on the side of the sock machine 7, the sock suction device including a first air pipe 1 and a second air pipe 2 provided by an air pump to provide gas suction for sucking up socks, and a feeding cylinder 3 connected between the first air pipe 1 and the second air pipe 2, characterized in that: a material tray 5 for detecting socks based on frequency is provided on the side of the sock machine 7, the material tray 5 is controlled by a driving device to move to below the feeding cylinder 3 to obtain the socks to be detected, and then moves away from below the feeding cylinder 3 under the drive of the driving device, without affecting the output of socks produced by the sock machine from the feeding cylinder; the frequency in the sock detection based on frequency is either the production quantity frequency of socks or the production time frequency of the sock machine; the production quantity frequency of socks is once for every set quantity of socks produced, and the production time frequency of the sock machine is once for every set production time. A controlled moving material tray 5 is provided on the side of the sock machine, which moves to below the feeding cylinder according to a preset frequency to obtain the detection sample. The frequency parameter can be selected as production quantity or time interval. When the set threshold is reached, the drive device is activated to allow the material tray to receive the current material, and then immediately withdraws to restore the passage to smooth flow.

[0028] The frequency detection mechanism refers to the control logic that triggers sampling actions based on production progress. Specifically, it can use a counter to record output or a timer to monitor production duration, sending a drive signal when the value reaches a set threshold. This mechanism ensures that the sampling interval meets quality management requirements, allowing test samples to cover different production stages. The material tray is the container holding the test samples, specifically a tray structure supported by a metal frame, its size adapted to the material discharge cylinder outlet. This component is in a clearance position during non-sampling periods to avoid interfering with the normal material discharge path. The drive device is the actuator that controls the displacement of the material tray, specifically a pneumatic slide rail or rotating arm structure. This device responds to the frequency signal to drive the material tray to switch between the sampling position and the clearance position, ensuring fast and accurate action.

[0029] Specifically, when socks with finished toeing are sucked into the feed hopper through a pneumatic pipe, the control system continuously monitors production data. Once the preset output or time is reached, the drive unit pushes the feed tray directly below the feed hopper; at this point, the falling socks enter the feed tray instead of the conventional collection box. After sampling, the drive unit immediately removes the feed tray from the feeding area, and subsequent socks continue to fall normally into the collection box. Operators periodically check the quality of the samples in the feed tray and, by analyzing the test results from different sampling cycles, pinpoint the production periods or output ranges corresponding to quality fluctuations.

[0030] Compared to existing technologies, traditional methods rely on manual random sampling of collected mixed batches of samples, making it impossible to establish a correlation between test results and production periods. This solution uses time-series or production-triggered mechanical sampling, ensuring each test sample carries a clear production stage marker, providing data support for parameter optimization. Simultaneously, the automated sampling process avoids the impact of manual intervention on production efficiency.

[0031] Through the above technical solution, this application achieves the correlation and recording of periodic automatic sampling and production data, enabling quality anomalies to be traced back to specific production intervals. Operators can accurately determine equipment status trends by analyzing test samples distributed chronologically or by production volume, and adjust process parameters accordingly. This solution improves quality monitoring accuracy while maintaining continuous production and reduces the frequency of manual inspections.

[0032] This application further proposes a driving device including a material tray horizontal driving device or a material tray rotation driving device. The material tray horizontal driving device includes a sliding cylinder 16 connected to a guide rail 17, and the sliding cylinder 16 is connected to the material tray 5. The material tray rotation driving device includes a rotating cylinder 11, and the rotating cylinder 11 is connected to the material tray 5 through a rotating arm 12.

[0033] The material tray horizontal drive device refers to a mechanism that uses a cylinder to drive the material tray horizontally. Specifically, it can be implemented by using a sliding cylinder in conjunction with a guide rail. The sliding cylinder reciprocates along the guide rail, causing the material tray to move horizontally to below the material drop cylinder or return to its original position. The material tray rotation drive device refers to a mechanism that uses a cylinder to drive the material tray to rotate. Specifically, it can be implemented by using a rotary cylinder in conjunction with a rotary arm. The rotary cylinder drives the rotary arm to rotate around an axis, thereby driving the material tray to move closer to or away from below the material drop cylinder along a rotational trajectory.

[0034] Specifically, when the horizontal drive device for the material tray is working, the sliding cylinder pushes the material tray horizontally along the guide rail to directly below the dropping cylinder, ensuring the tray accurately catches the falling socks to be inspected. The cylinder then drives the tray to reset, preventing it from obstructing subsequent socks from falling into the collection box. When the rotary drive device for the material tray is working, the rotary cylinder drives the rotary arm to rotate the material tray around a fixed axis to below the dropping cylinder. After catching the socks, it rotates in the opposite direction to reset the tray. The two drive methods can be flexibly selected according to space constraints in the production environment or inspection requirements. For example, rotary drive can be prioritized in narrow spaces to reduce footprint, while horizontal drive can be used in scenarios requiring rapid linear movement.

[0035] Through the above technical solution, this application achieves precise positioning of the material tray during the receiving and resetting process, ensuring accurate acquisition of test samples without affecting the normal production process, while simplifying the drive structure and reducing equipment maintenance costs.

[0036] This application further proposes that the outer periphery of the tray 5 is fitted with a metal frame 15, and the metal frame 15 is fixedly connected to the rotating arm 12 or the sliding cylinder 16.

[0037] The metal frame refers to the supporting structure surrounding the material tray, which can be made of stainless steel or aluminum alloy. It is used for quickly placing or removing the material tray. The fixed connection refers to the rigid connection between the metal frame and the rotating arm or sliding cylinder. This can be achieved through bolt fastening, welding, or snap-fit ​​structures, ensuring that the material tray maintains a stable movement trajectory under the drive of the device.

[0038] Specifically, the metal frame is designed as a ring or U-shaped structure, tightly fitted around the outer edge of the tray, and connected to the drive component of the rotating arm or sliding cylinder via fixed points. When the drive device moves the rotating arm or sliding cylinder, the metal frame evenly transmits the driving force to the tray, preventing tilting or shaking caused by uneven local force. For example, in a horizontal tray drive device, the sliding cylinder pushes the tray to move along the guide rail via the metal frame; in a rotary tray drive device, the rotating arm drives the tray to rotate around an axis via the metal frame. The rigid support of the metal frame prevents deformation of the tray during frequent starts and stops or high-speed movement, thus ensuring positioning accuracy when inspecting socks.

[0039] Through the above technical solution, this application solves the problem that the material tray is easily deformed or difficult to pick up and put down during frequent movement, ensuring that the socks being tested can fall accurately into the designated position of the material tray, while reducing the detection error and equipment maintenance frequency caused by the instability of the mechanical structure.

[0040] This application further proposes that the material tray horizontal drive device or the material tray rotation drive device are both connected to the mounting bracket 6. The mounting bracket 6 is connected to the sock machine 7 and the material drop cylinder 3 respectively. The material drop cylinder 3 is a conical cylindrical structure with the top smaller than the bottom. The top side of the conical cylindrical structure is connected to the first air pipe 1, the top side of the conical cylindrical structure is connected to the first air pipe 1, and the bottom side of the conical cylindrical structure is connected to the second air pipe 2.

[0041] The mounting bracket is a connecting component used to fix the drive unit to the sock machine and the feed tube. It can be implemented using a metal frame or welded structural parts. Its function is to rigidly connect the drive unit to the main body of the sock machine, ensuring the stability of the feed tray's movement trajectory. The conical cylinder structure is a cylindrical container with a cross-section that is narrower at the top and wider at the bottom. It can be made of stainless steel or plastic. Its top constriction design facilitates gas flow and creates negative pressure adsorption, while the bottom flare structure allows the socks to fall naturally. The first and second air pipes are connected at the top and bottom sides of the conical cylinder, respectively, using flange interfaces or snap-fit ​​pipe connections. This dual-air pipe layout creates a continuous airflow channel, maintaining a dynamic balance of gas pressure during the sock suction process.

[0042] Specifically, the mounting bracket is fixed to the side of the sock machine and physically connected to the material drop cylinder, ensuring a spatial correspondence between the drive unit's movement path and the vertical axis of the material drop cylinder. When the material tray, controlled by the drive unit, moves to directly below the material drop cylinder, the top of the conical cylinder continuously draws in socks through the first air pipe, while the bottom maintains airflow circulation through the second air pipe, preventing pipe blockage caused by single-point suction. The tapered, gradually expanding inner cavity allows the socks to slide down the cylinder wall under gravity, reducing friction and jamming with the pipe wall. The rigid connection of the mounting bracket eliminates vibration offsets generated during drive unit movement, ensuring that the material tray accurately reaches the predetermined position with each movement.

[0043] Compared to existing technologies, traditional sock machines often use a straight cylindrical structure for their suction pipes without mounting brackets, leading to airflow turbulence or pipe blockage during suction. Furthermore, the lack of a rigid connection between the drive unit and the machine body affects the positioning accuracy of the feed tray. This solution optimizes airflow distribution through a conical cylindrical structure and a dual-pipe layout, combined with the rigid support of the mounting brackets, achieving continuous and stable operation of the suction process.

[0044] Through the above technical solution, this application effectively solves the problem of socks piling up caused by unstable airflow in existing sock machines. The conical structure and dual air pipe design improve the airflow circulation efficiency, while the mounting bracket ensures the coordination accuracy of the drive device and the sock machine, avoiding sampling deviations caused by mechanical vibration during the detection process, thereby improving the accuracy of quality detection.

[0045] This application further proposes a flip cover 13 connected to the bottom surface of a conical cylindrical structure and controlled by a spring 14. The flip cover 13 and the bottom surface of the conical cylindrical structure are normally closed under the control of the spring 14. When the sock is sucked in from the first air pipe 1 and falls onto the flip cover 13, the weight of the sock overcomes the spring force of the spring 14 and falls into the collection frame 4 on the side of the sock machine 7.

[0046] The spring-controlled flap opening and closing mechanism refers to a structure that uses the elastic force of a spring to maintain the flap's closed state. This can be achieved using a compression spring or a torsion spring. The spring force must be appropriate for the weight of the socks to ensure the flap only opens when a sock falls. The conical cylindrical structure refers to the gradually widening conical shape at the bottom of the discharge cylinder, which can be made of metal or plastic. It guides the socks towards the flap. The collection frame is a container for storing the socks, which can be an open or box-like structure with a movable door, placed below the discharge cylinder to catch the falling socks.

[0047] Specifically, after the socks are sucked into the discharge cylinder through the first air tube, they fall onto the flip-top surface due to gravity. The flip-top remains closed under the action of a spring, preventing undetected socks from directly entering the collection box. When the socks accumulate a certain weight, their gravity exceeds the spring force, the flip-top is pressed down and opens, and the socks fall into the collection box. After the falling action is complete, the spring pushes the flip-top back to the closed position, ensuring that subsequent socks must accumulate sufficient weight again to trigger the opening. This process automatically controls the batch descent of socks through a mechanical structure, avoiding manual intervention.

[0048] Compared to existing technologies, current sock machines typically use open material drop channels or fixed valve structures, resulting in socks falling randomly and making it impossible to distinguish between test samples and regular products. This solution, through a spring-and-flip-cover linkage design, achieves automatic batch separation of socks, ensuring the independence and traceability of test samples while reducing manual sorting operations.

[0049] Through the above technical solution, this application solves the problem of difficulty in quality analysis caused by mixed sock test samples in the prior art. It achieves accurate interception of test samples through a mechanical weight triggering mechanism, thereby improving the accuracy of quality judgment and reducing the labor intensity of workers.

[0050] This application further proposes a method for detecting socks based on frequency, including the following steps.

[0051] Step 1: After the sock machine 7 completes the knitting of the socks through the sock machine control system, the sock transfer arm 8 transfers the socks to the sewing device 10 to complete the sewing of the socks. Then the socks are sucked into the feed tube 3 through the first air pipe 1 and then fall into the collection box 4.

[0052] Step 2: After the sock machine 7 produces the set number of socks, the material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder 3 as the socks to be inspected, and then the material tray resets and moves away from the drop cylinder 3.

[0053] Step 3: After completing Step 2, repeat Step 1 repeatedly. Based on the quality of the socks being tested in the tray, the staff will determine the quality distribution of the socks in the entire collection box 4, and then adjust the sock machine production parameters.

[0054] The "set quantity of socks" refers to the number of socks continuously produced by the sock machine, counted by a counter. When a preset threshold is reached, a detection action is triggered. This can be achieved using a photoelectric sensor in conjunction with a PLC controller, establishing a periodic quality sampling mechanism. The "material tray horizontal drive device" is an actuator that achieves horizontal linear displacement through a combination of guide rails and cylinders. Specifically, a sliding cylinder in conjunction with the guide rail can be used to precisely move the material tray below the dropping cylinder to collect samples. The "material tray rotation drive device" is an actuator that drives a swing arm to achieve arc-shaped trajectory movement through a rotating cylinder. Specifically, a rotating cylinder with an angle sensor in conjunction with a stainless steel swing arm can be used to avoid the dropping channel by rotating. The "quality distribution" refers to establishing a time-defect correlation database by statistically analyzing the defect types and occurrence times of the inspected samples. This can be achieved through manual recording or an image recognition system, used to trace production batches where quality problems occurred.

[0055] Specifically, when the sock machine reaches a preset production quantity, the control system automatically activates the drive unit, moving the material tray directly below the feed cylinder to collect the currently produced socks as inspection samples. After sample acquisition, the material tray immediately resets, allowing subsequently produced socks to fall normally into the collection box. Workers only need to periodically check the accumulated samples in the material tray and analyze the concentrated periods of sample defects to pinpoint the production parameter adjustment points causing quality abnormalities. For example, when three consecutive samples are detected to have the same thread end defect, the tension parameters of the sewing device can be adjusted by tracing back to the corresponding time period.

[0056] Compared to existing technologies, which rely on manual random sampling and cannot be linked to specific production periods, making problem tracing difficult, this method establishes a quantity-triggered automatic sampling mechanism that ensures a strict correspondence between test samples and production batches, while avoiding sampling omissions caused by manual intervention. A rotating or horizontally driven tray mechanism can complete sample separation without disrupting the normal production process, ensuring that test data remains synchronized with the production sequence.

[0057] Through the above technical solution, this application achieves automatic collection of quality inspection samples and precise correlation with production batches, enabling staff to quickly locate periods of quality fluctuation using limited samples. Compared to 100% inspection, it reduces the inspection workload by more than 90% while ensuring the effectiveness of quality monitoring. Furthermore, it allows for reverse optimization of equipment parameter settings based on the temporal distribution characteristics of sample defects, forming a closed-loop quality control system.

[0058] This application further proposes a method for detecting socks based on frequency, comprising the following steps:

[0059] Step 1: After the sock machine completes the knitting of the socks through the sock machine control system, the sock transfer arm transfers the socks to the sewing device to complete the sewing of the socks. Then the socks are sucked into the feed tube through the first air tube and then fall into the collection box.

[0060] Step 2: After the socks are produced at the set time, the material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder as the socks to be tested. Then the material tray resets and moves away from the drop cylinder.

[0061] Step 3: After completing Step 2, repeat Step 1 repeatedly. Based on the quality of the socks being tested in the tray, the staff judges the quality distribution of the socks in the entire collection box and then adjusts the sock machine production parameters.

[0062] The "socks with set production time" refers to sampling inspection performed at preset time intervals. This can be achieved by using a timer module to control the start cycle of the drive device. This time interval can be set according to production needs, for example, 30 minutes or 1 hour. The "material tray horizontal drive device" is the actuator that moves the material tray along a straight trajectory. This can be implemented using a cylinder and guide rail structure, allowing the material tray to move horizontally directly below the material drop cylinder. The "material tray rotation drive device" is the actuator that transfers the material tray through rotational motion. This can be implemented using a rotary cylinder and rotary arm structure, allowing the material tray to enter and exit the material drop area along an arc trajectory.

[0063] Specifically, after the sock machine has been producing continuously for a preset time, the control system automatically triggers the drive unit to move the material tray below the drop cylinder. At this time, the negative pressure generated by the air pump draws the socks with finished sewing into the drop cylinder through the first air pipe. When the selected test sample falls, the material tray accurately catches it. After catching, the drive unit immediately moves the material tray out of the drop path, allowing subsequently produced socks to fall normally into the collection box. Workers can periodically check the samples in the material tray. By analyzing the quality characteristics of samples within a specific time period, they can accurately correlate the time points when quality problems occur, thereby allowing for targeted adjustments to the process parameters for the corresponding periods.

[0064] Compared to existing technologies, current testing methods rely on manual random sampling, which fails to establish a correlation between quality data and production time. This method, however, establishes a precise correspondence between test samples and production time periods through timed automatic sampling. Traditional methods require workers to frequently interrupt production for sampling, while this solution achieves non-contact sampling through mechanical automation, ensuring production continuity. Furthermore, existing technologies struggle to trace the time intervals in which quality problems occur, while this method, through time-stamped sample testing, can quickly pinpoint the time periods of abnormal process parameters.

[0065] Through the above technical solution, this application realizes a time-based quality monitoring system, enabling staff to accurately determine the process stability during specific production periods through regularly collected test samples. Because the sampling process is fully automated, the frequency of manual inspections is significantly reduced. Furthermore, by using time-correlated sample data, the time points of process parameter drift can be quickly identified, providing a clear time reference for parameter optimization.

[0066] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A sock machine for detecting socks based on frequency, comprising a sock machine (7), a sock suction device provided on the side of the sock machine (7), the sock suction device comprising a first air pipe (1) and a second air pipe (2) provided by an air pump to provide gas suction for sucking up socks, and a discharge cylinder (3) connected between the first air pipe (1) and the second air pipe (2), characterized in that: The sock machine (7) is provided with a material tray (5) on the side for detecting socks according to frequency. The material tray (5) is controlled by the drive device to move to the bottom of the dropping cylinder (3) to get the socks to be detected, and then moves away from the bottom of the dropping cylinder (3) under the drive device, without affecting the output of socks produced by the sock machine from the dropping cylinder. The frequency in detecting socks according to frequency is either the production quantity frequency of socks or the production time frequency of the sock machine. The production quantity frequency of socks is once for each set production quantity of socks, and the production time frequency of the sock machine is once for each set production time of socks. The driving device includes a material tray horizontal driving device or a material tray rotation driving device. The material tray horizontal driving device includes a sliding cylinder (16) connected to the guide rail (17), and the sliding cylinder (16) is connected to the material tray (5). The material tray rotation driving device includes a rotating cylinder (11), and the rotating cylinder (11) is connected to the material tray (5) through a rotating arm (12). The material tray (5) is fitted with a metal frame (15) around its outer periphery, and the metal frame (15) is fixedly connected to a rotating arm (12) or a sliding cylinder (16). The material tray horizontal drive device or the material tray rotation drive device are both connected to the mounting bracket (6). The mounting bracket (6) is connected to the sock machine (7) and the material drop cylinder (3) respectively. The material drop cylinder (3) is a conical cylindrical structure with a top smaller than the bottom. The top side of the conical cylindrical structure is connected to the first air pipe (1), and the bottom side of the conical cylindrical structure is connected to the second air pipe (2).

2. A sock-detecting machine based on frequency according to claim 1, characterized in that: The bottom surface of the conical cylindrical structure is connected to a flip cover (13) controlled by a spring (14). The flip cover (13) and the bottom surface of the conical cylindrical structure are normally closed under the control of the spring (14). When the socks are sucked in from the first air tube (1) and fall onto the flip cover (13), the weight of the socks overcomes the spring force of the spring (14) and falls into the collection frame (4) on the side of the sock machine (7).

3. A sock machine detection method for detecting socks based on frequency, as described in any one of claims 1 to 2, characterized in that: Includes the following steps Step 1: After the sock machine (7) completes the knitting of the socks through the sock machine control system, the sock transfer arm (8) transfers the socks to the sewing device (10) to complete the sewing of the socks. Then the socks are sucked into the drop cylinder (3) through the first air tube (1) and then fall into the collection box (4). Step 2: After the sock machine (7) produces the set number of socks, the material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder (3) as the socks to be tested, and then the material tray resets and moves away from the drop cylinder (3). Step 3: After completing Step 2, repeat Step 1. The staff will judge the quality distribution of socks in the entire collection box (4) based on the quality of the socks being tested in the material tray, and then adjust the production parameters of the sock machine.

4. A sock machine detection method for detecting socks based on frequency, as described in any one of claims 1 to 2, characterized in that: Includes the following steps Step 1: After the sock machine (7) completes the knitting of the socks through the sock machine control system, the sock transfer arm (8) transfers the socks to the sewing device (10) to complete the sewing of the socks. Then the socks are sucked into the drop cylinder (3) through the first air tube (1) and then fall into the collection box (4). Step 2: The sock machine (7) produces socks at the set time. The material tray horizontal drive device or the material tray rotation drive device drives the material tray to catch the socks falling from the drop cylinder (3) as the socks to be tested. Then the material tray resets and moves away from the drop cylinder (3). Step 3: After completing Step 2, repeat Step 1. The staff will judge the quality distribution of socks in the entire collection box (4) based on the quality of the socks being tested in the material tray, and then adjust the production parameters of the sock machine.

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