Clothing splicing process line drawing positioning tool

Abstract

The invention relates to the technical field of garment production, in particular to a garment sewing process line drawing positioning tool which comprises a line drawing positioning frame and further comprises a pressure adjusting shell, the pressure adjusting shell is fixedly installed on the line drawing positioning frame, a pressure adjusting system is arranged in the pressure adjusting shell, and the pressure adjusting system is connected with the pressure adjusting shell. A line drawing device is detachably mounted on the pressure adjusting system; the detection control module is fixedly mounted on the pressure adjusting shell and is in signal connection with the pressure adjusting system; the support leg is arranged on the line tracing positioning frame, a pressure detection wheel is rotatably mounted at the bottom end of the support leg, and a pressure detection processing module is further fixedly mounted on the support leg; according to the line drawing positioning tool for the garment splicing process, the problem that line drawing traces are too heavy or too light can be avoided, and the line drawing quality and effect can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garment production, in particular to a garment splicing process line positioning tool. BACKGROUND

[0002] In the field of garment production, line positioning in splicing process is a key link to ensure the accuracy of subsequent sewing, and its quality directly affects the version regularity, appearance beauty and overall production quality of the garment. In actual production, special tooling is needed to draw lines at the splicing position of the garment pattern, providing clear and accurate guidance for sewing operation. Although there are line positioning tooling for this process in the industry, it is often difficult to achieve precise control of line pressure when facing different thicknesses of patterns and complex splicing areas (such as areas with sudden or gradual thickness changes), resulting in unstable line drawing effect and affecting subsequent processing efficiency and product quality.

[0003] The existing garment splicing process line positioning tooling cannot flexibly adjust the line pressure according to the thickness changes of the pattern splicing area. When the pattern has a constant thickness difference, it is easy to cause the line trace to be blurred due to insufficient pressure, affecting the sewing accuracy, or the pattern to be damaged and the line drawing equipment to be worn out due to excessive pressure. For areas where the pattern thickness gradually changes, the existing tooling lacks an effective pressure adjustment mechanism and is difficult to adapt to the continuous change of thickness, which easily leads to uneven line traces, making it inconvenient to use. Therefore, in view of the above status, it is urgent to develop a garment splicing process line positioning tooling to overcome the shortcomings in current practical applications. SUMMARY

[0004] The present application aims to provide a garment splicing process line positioning tooling to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A garment splicing process line positioning tooling, comprising a line positioning frame, further comprising:

[0007] A pressure adjustment shell is fixedly installed on the line positioning frame, and a pressure adjustment system is arranged in the pressure adjustment shell, and a line drawing device is detachably installed on the pressure adjustment system;

[0008] A detection and control module is fixedly installed on the pressure adjustment shell and signal connected with the pressure adjustment system;

[0009] And a supporting leg is arranged on the line positioning frame, and a pressure detection wheel is rotatably installed at the bottom end of the supporting leg, and a pressure detection processing module is fixedly installed on the supporting leg;

[0010] The pressure detection wheel is signal connected with the pressure detection processing module, and the pressure detection processing module is also signal connected with the detection control module.

[0011] The line drawing positioning frame is further provided with a propulsion detection device for driving the supporting leg to move horizontally on the line drawing positioning frame, and the lowest end of the pressure detection wheel is located on the same horizontal plane as the lowest end of the line drawing device.

[0012] As a further scheme of the present application, the line drawing positioning frame is provided with a limiting installation slot, and the pressure adjusting shell is connected with the line drawing positioning frame through the limiting installation slot.

[0013] As a further scheme of the present application, the line drawing device comprises:

[0014] A lifting rod connected with the pressure adjusting system;

[0015] A line drawing supporting rod detachably connected with the lifting rod through a flange joint, and a line drawing wheel rotatably installed at the bottom end of the line drawing supporting rod;

[0016] and a rotation detection part one located at the line drawing wheel and used for detecting the pressure and the number of rotations of the line drawing wheel.

[0017] As a further scheme of the present application, the supporting leg is further provided with a rotation detection part two located close to the pressure detection wheel and used for detecting the pressure and the number of rotations of the rotation detection part two.

[0018] As a further scheme of the present application, the propulsion detection device comprises:

[0019] A mounting seat fixedly installed on the pressure adjusting shell, and a translation driving element fixedly installed on the mounting seat;

[0020] A displacement detection support fixedly installed on the line drawing positioning frame, and a screw rod provided between the displacement detection support and the translation driving element, wherein the displacement detection support is used for detecting the number of rotations of the screw rod;

[0021] A threaded sleeve sleeved on the screw rod and connected with the supporting leg;

[0022] and a limiting unit connected with the line drawing positioning frame and the threaded sleeve, respectively.

[0023] As a further scheme of the present application, the limiting unit comprises:

[0024] A movement detection limiting groove is arranged on the tracing positioning frame;

[0025] A slider assembly is fixedly installed on the threaded sleeve and inserted into the movement detection limiting groove and connected with the movement detection limiting groove in a sliding manner.

[0026] As a further scheme of the present application, a protection connecting rod is fixedly installed between the threaded sleeve and the supporting leg.

[0027] As a further scheme of the present application, the working steps of the pressure detection processing module include:

[0028] Step 1, real-time receiving of pressure data and rotation number of the pressure detection wheel feedback;

[0029] Step 2, analysis of the pressure data to determine whether the cutting piece thickness is a constant value or a gradually changing value, if it is a constant thickness difference, the target pressure adjustment value is calculated, if it is a gradually changing thickness difference, a start signal is sent to the advancing detection device;

[0030] Step 3, after the advancing detection device is started, the pressure data in the extended area is continuously collected, and an average pressure value is generated every 0.5 seconds;

[0031] Step 4, the processed pressure adjustment value or average pressure value is converted into an electrical signal and transmitted to the detection control module, and the movement distance of the pressure detection wheel is recorded synchronously.

[0032] As a further scheme of the present application, in step 3, after the advancing detection device is started, the pressure detection processing module receives the pressure data collected by the pressure sensor and the movement distance recorded by the rotary encoder through the built-in micro control unit and A / D converter, after the abnormal data exceeding the threshold value of 0.1-5N is eliminated, the average pressure value within 0.5 seconds is calculated by using the sliding average method, and the average pressure value is transmitted to the detection control module.

[0033] As a further scheme of the present application, the working steps of the detection control module include:

[0034] Step 1, receiving of the pressure adjustment signal transmitted by the pressure detection processing module, and simultaneously obtaining of the real-time pressure and rotation number of the tracing wheel feedback by the rotary detection part;

[0035] Step 2, calculation of the delay time of the pressure adjustment according to the initial distance between the pressure detection wheel and the tracing wheel and the movement speed of the device;

[0036] Step 3, sending of a control instruction to the pressure adjustment system, direct adjustment of the tracing wheel height for the constant thickness difference, and gradual adjustment according to the average pressure value for the gradually changing thickness difference, and updating of the pressure parameter once every 5 cm of movement.

[0037] Step 4, compare the number of rotations of the real-time contrast line wheel and the pressure detection wheel, and send a compensation signal to correct the line pressure when the deviation exceeds 5%;

[0038] Step 5, when the pressure detection wheel pressure is zero, control the line wheel to stop line operation after moving a preset distance.

[0039] Compared with the prior art, the beneficial effects of the present application are:

[0040] 1. The line pressure can be accurately adjusted to avoid the problems of unclear line marks caused by too small pressure or damage to the cutting piece / equipment caused by too large pressure, ensuring uniform line and significantly improving line quality and effect;

[0041] 2. The constant thickness difference and the gradual thickness difference of the cutting piece can be distinguished, and adaptive adjustment strategies are adopted for different situations: the line wheel height is directly adjusted for constant thickness difference, and the detection area is expanded by advancing the detection equipment and the average pressure value is calculated for gradual thickness difference to gradually adjust and adapt to complex cutting piece thickness change scenarios;

[0042] 3. Precise synchronization of pressure detection and line action is achieved, the pressure adjustment delay time is calculated to ensure that the line wheel adjusts the pressure when it reaches the thickness change area, avoiding sudden changes in line marks in the transition area;

[0043] 4. It has the ability to process abnormal data, by eliminating pressure abnormal data exceeding the threshold of 0.1-5N, using the moving average method to calculate the average pressure value, to improve the stability and reliability of pressure detection and adjustment;

[0044] 5. The structure is stable, the connection of each part is stable through the structure of the limiting installation slot and the sliding block assembly, and the line precision is not affected by the displacement of the parts during operation; the protection connecting rod can protect the pressure detection wheel in abnormal conditions to reduce the risk of equipment damage;

[0045] 6. When the pressure detection wheel pressure is zero, the line wheel can be controlled to move a preset distance and then stop automatically, realizing automatic control of the line process and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a schematic diagram of the three-dimensional structure of the line positioning frame in the embodiment of the present application.

[0047] Figure 2 It is a schematic diagram of the three-dimensional structure of the pressure adjustment shell in the embodiment of the present application.

[0048] Figure 3 It is a schematic diagram of the three-dimensional structure of the line support rod in the embodiment of the present application.

[0049] Figure 4It is the cross section structure schematic view of the lifting rod in the embodiment of the application.

[0050] Figure 5 It is the three-dimensional structure schematic view of the line drawing wheel in the embodiment of the application.

[0051] Figure 6 It is the three-dimensional structure schematic view of the protection connecting rod in the embodiment of the application.

[0052] Figure 7 It is the three-dimensional structure schematic view of the pressure detection processing module in the embodiment of the application.

[0053] Figure 8 It is the work flow chart of the pressure detection processing module in the embodiment of the application.

[0054] In the figure: 1 - line drawing positioning frame, 2 - limit installation slot, 3 - pressure adjusting shell, 4 - detection control module, 5 - moving detection limit slot, 6 - cover plate, 7 - line drawing support rod, 8 - flange joint, 9 - translation driving part, 10 - screw rod, 11 - displacement detection support, 12 - mounting seat, 13 - lifting rod, 14 - rotation detection part one, 15 - line drawing wheel, 16 - slider assembly, 17 - threaded sleeve, 18 - protection connecting rod, 19 - support leg, 20 - pressure detection processing module, 21 - pressure detection wheel, 22 - rotation detection part two. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0056] The specific implementation of the application will be described in detail below in combination with specific embodiments.

[0057] Please refer to Figures 1-7 The embodiment of the application provides a clothing joint process line drawing positioning tool, which comprises a line drawing positioning frame 1 and further comprises:

[0058] A pressure adjusting shell 3 is fixedly installed on the line drawing positioning frame 1, and a pressure adjusting system is arranged in the pressure adjusting shell 3, and a line drawing device is detachably installed on the pressure adjusting system;

[0059] A detection control module 4 is fixedly installed on the pressure adjusting shell 3 and is in signal connection with the pressure adjusting system.

[0060] And a supporting leg 19 is arranged on the line positioning frame 1, a pressure detection wheel 21 is rotatably arranged at the bottom end of the supporting leg 19, and a pressure detection processing module 20 is fixedly arranged on the supporting leg 19;

[0061] The pressure detection wheel 21 is signal connected with the pressure detection processing module 20, and the pressure detection processing module 20 is signal connected with the detection control module 4;

[0062] The line positioning frame 1 is further provided with a propulsion detection device for driving the supporting leg 19 to move horizontally on the line positioning frame 1, and the lowest end of the pressure detection wheel 21 is located on the same horizontal plane with the lowest end of the line device.

[0063] In the process of drawing lines on the seams of clothes, first of all, under the drive of external equipment, the drawing line positioning frame 1 and the drawing line equipment can be moved to the seam for drawing line operation. The drawing line positioning frame 1 is installed on the external equipment by screws (for example, it is installed on an external mechanical hand, and under the driving action of the mechanical hand, the drawing line positioning frame 1 and the drawing line equipment can be driven to draw lines along the track of the seam). Then, the pressure detection wheel 21 is arranged, wherein the pressure detection wheel 21 is located in the front side of the forward direction of the drawing line equipment (that is, the area rolled by the pressure detection wheel 21 is drawn by the drawing line equipment, which can be made of polyurethane material, with a diameter of 30 mm, a width of 10 mm, a surface hardness of 60 Shore A, and a pre-pressure of 0.5-2N). On the one hand, the pressure detection wheel 21 can detect and smooth the folded parts of the seam to ensure uniform drawing lines. On the other hand, the thickness of different seam areas can be detected. Since the distance between the pressure detection wheel 21 and the drawing line positioning frame 1 is fixed, different thickness areas will produce different pressures on the pressure detection wheel 21. After the pressure detection is completed, the pressure data is immediately processed by the pressure detection processing module 20, and the processed data is transmitted to the detection control module 4. Thus, the detection control module 4 can control the pressure adjusting system to act (the cover plate 6 arranged on the pressure adjusting shell 3 can be opened for maintenance and maintenance work of the pressure adjusting system). The pressure adjusting system can adopt a hydraulic system or an electric system to change the height of the drawing line equipment (for example, in the form of a servo electric cylinder (model EC-60), with a rated thrust of 500N, a stroke of 0-100mm, a response speed of ≤0.1s, and an adaptive fabric thickness of 0.1-5mm), so that the pressure of the line drawing can be controlled according to the pressure detected by the pressure detection wheel 21, so as to avoid that the pressure of the line drawing is too small, which causes that the trace of the line drawing is not obvious and affects the subsequent sewing operation, and also avoid that the pressure of the line drawing is too large, which causes that the garment piece is damaged or the line drawing equipment is damaged and the cost of production is increased, so as to ensure that the line drawing is uniform and improve the effect of the line drawing of the garment, wherein, in the normal detection work (the pressure detection wheel 21 is located at the initial working position), the distance between the pressure detection wheel 21 and the line drawing equipment is a certain length (for example, the length is 15cm), after the thickness change is detected by the pressure detection wheel 21, since the running speed of the line drawing equipment is constant, the pressure adjustment of the line drawing equipment on the garment piece is controlled by the detection control module 4 after a period of time, so that the trace change of the line drawing can be avoided in the thickness transition area, and the pressure of the line drawing equipment can be accurately controlled in the thickness change position, so as to ensure that the line drawing operation is smoothly carried out, the above work is generally for the case of two constant height differences (for example, the thickness of the piece changes from low to high, but the height remains unchanged after changing), but for the line drawing area with gradually changing height difference, the constant pressure adjustment or the real-time changing pressure adjustment may be difficult, so as to affect the quality of the line drawing, therefore, when the pressure detection wheel 21 detects that the pressure difference of the piece gradually changes (at this time, the line drawing equipment has not reached the area with changing height), the pressure detection processing module 20 controls the advancing detection equipment to act (at this time, the pressure detection processing module 20 does not control the detection control module 4 to act), and the advancing detection equipment drives the supporting leg 19 to move a distance in the horizontal direction of the line drawing positioning frame 1 (the distance between the pressure detection wheel 21 and the line drawing equipment gradually increases), so that the pressure detection wheel 21 can detect more areas with changing height, at this time, the data detected by the pressure detection wheel 21 is averaged in the pressure detection processing module 20, so as to obtain the average value of the height difference change, at this time, the pressure detection processing module 20 controls the detection control module 4 to adjust the line drawing equipment with an average pressure value, so that the line drawing equipment draws the garment piece with the pressure of the average pressure value in the area with gradually changing height (the new data can be generated every few seconds, so that the average pressure value is updated after the line drawing equipment moves a length, so as to ensure accurate line drawing), so that the problem of too heavy or too light line drawing trace can be avoided, and the quality and effect of the line drawing can be improved, which provides convenience for the workers.

[0064] In one embodiment of the present application, please refer to Figures 1-7 The line drawing positioning frame 1 is provided with a limiting installation slot 2, and the pressure adjustment shell 3 is connected with the line drawing positioning frame 1 through the limiting installation slot 2.

[0065] The line drawing equipment comprises:

[0066] Lifting rod 13, which is connected with the pressure adjusting system;

[0067] Line drawing support rod 7, which is detachably connected with the lifting rod 13 through a flange joint 8, and the bottom end of the line drawing support rod 7 is rotatably installed with a line drawing wheel 15;

[0068] And a rotation detection part one 14, which is located at the line drawing wheel 15, is used for detecting the pressure and the number of rotations of the line drawing wheel 15.

[0069] The support leg 19 is also provided with a rotation detection part two 22, which is arranged close to the pressure detection wheel 21, and is used for detecting the pressure and the number of rotations of the rotation detection part two 22.

[0070] The limiting installation groove 2 is arranged, so that the pressure adjusting shell 3 can be stably arranged on the line drawing positioning frame 1, and the pressure adjusting shell 3 is prevented from being deviated during the line drawing process of the line drawing wheel 15. In addition, under the driving action of the pressure adjusting system, the line drawing support rod 7 and the line drawing wheel 15 can be driven to move through the lifting rod 13, so that the pressure of the line drawing wheel 15 can be adjusted. Through the detection action of the rotation detection part one 14, the pressure and the number of rotations of the line drawing wheel 15 can be detected. According to the pressure, feedback is given to the detection control module 4, so that the line drawing wheel 15 can be controlled in height by the pressure adjusting system. In addition, according to the number of rotations of the line drawing wheel 15, the number of rotations of the pressure detection wheel 21 (the number of rotations of the pressure detection wheel 21 is detected by the rotation detection part two 22) can be compared, so that the trajectory and displacement of the line drawing wheel 15 during line drawing can be matched with the trajectory of the movement of the pressure detection wheel 21. Under the cooperative control of the two, the line drawing action of the line drawing wheel 15 in the thickness transition area and the height difference change area can be further ensured to be accurate.

[0071] In an embodiment of the present application, please refer to Figures 1-7 The advancing detection device comprises:

[0072] A mounting seat 12 is fixedly installed on the pressure adjusting shell 3, and a translation driving part 9 is fixedly installed on the mounting seat 12;

[0073] A displacement detection support 11 is fixedly installed on the line drawing positioning frame 1, and a screw rod 10 is arranged between the displacement detection support 11 and the translation driving part 9. The displacement detection support 11 is used for detecting the number of rotations of the screw rod 10.

[0074] A threaded sleeve 17 is sleeved on the screw rod 10 and connected with the support leg 19;

[0075] And a limiting unit, which is connected to the line drawing and positioning frame 1 and the threaded sleeve 17 respectively.

[0076] The limiting unit includes:

[0077] A movable detection limit groove 5 is provided on the line drawing positioning frame 1;

[0078] And a slider assembly 16 , which is fixedly mounted on the threaded sleeve 17 , and the slider assembly 16 is also inserted into the movement detection limit groove 5 and is slidably connected to the movement detection limit groove 5 .

[0079] It also includes a protective connecting rod 18 , which is fixedly installed between the threaded sleeve 17 and the supporting leg 19 .

[0080] When the height difference of the garment cutting pieces is constantly changing, at this time, the pressure detection processing module 20 will control the translation drive member 9 to start (the translation drive member 9 is in the form of a motor) and drive the screw 10 to rotate. At this time, under the action of the threaded cooperation between the screw 10 and the threaded sleeve 17 and the limited sliding action between the slider assembly 16 and the movement detection limit groove 5, the threaded sleeve 17 can drive the support leg 19 to move quickly, thereby driving the pressure detection wheel 21 to collect data from more cutting piece areas, and then calculate the average value of the push of the line drawing wheel 15, so as to ensure the accuracy of the line drawing. In addition, through the provided displacement detection support 11, the number of rotations of the screw 10 can be detected to indirectly measure the pressure detection wheel. 21 moves the length, so as to control the length of the line drawing wheel 15 to draw the line at a certain pressure value. Of course, in order to ensure the speed of the movement of the support leg 19, the propulsion detection equipment can also be pneumatic (such as cylinder push), which will not be elaborated here. When the pressure detected by the pressure detection wheel 21 is zero, it proves that the pressure detection wheel 21 has been separated from the line drawing template. Then, after the line drawing wheel 15 moves a certain distance at the set pressure (the constant distance between the line drawing wheel 15 and the pressure detection wheel 21 + the displacement measured by the displacement detection support 11, wherein the constant distance between the line drawing wheel 15 and the pressure detection wheel 21 is the length of the pressure detection wheel 21 from the line drawing wheel 15 when it is at the initial work station), the line drawing operation is also stopped. In addition, by setting up a protective link 18, wherein the protective link 18 can adopt an approximately elliptical structure and has a certain elastic effect (the elastic effect will not affect the normal detection work of the pressure detection wheel 21, and within the normal pressure range, the protective link 18 will not be deformed), then when the pressure detection wheel 21 works abnormally, etc., a large pressure is applied to the protective link 18, which can cause a certain deformation of the protective link 18, thereby avoiding damage to the pressure detection wheel 21 due to excessive pressure.

[0081] In one embodiment of the present invention, see Figures 1-8The working steps of the pressure detection processing module 20 include:

[0082] Step 1, real-time receiving of pressure data (reflecting the thickness of the garment piece) and rotation number (reflecting the moving distance) fed back by the pressure detection wheel 21;

[0083] Step 2, analysis of the pressure data to determine whether the thickness of the piece is a constant value or a gradual value:

[0084] If it is a constant thickness difference (such as suddenly changing from 0.5 mm to 2 mm and then remaining stable), the target pressure adjustment value is directly calculated; if it is a gradual thickness difference (such as gradually increasing from 0.5 mm to 2 mm), a start signal is sent to the propulsion detection device;

[0085] Step 3, when the propulsion detection device starts (the support leg 19 drives the pressure detection wheel 21 to move horizontally for a distance and then stops moving), the pressure data in the extended area is continuously collected during the movement of the overall device, and an average pressure value is generated every 0.5 seconds;

[0086] Step 4, the processed pressure adjustment value or average pressure value is converted into an electrical signal and transmitted to the detection control module 4, and the moving distance of the pressure detection wheel 21 (based on the number of rotations of the rotation detection part two 22) is recorded synchronously.

[0087] In step 3, the specific process of the pressure detection processing module 20 generating an average pressure value after the propulsion detection device starts includes:

[0088] (1) control element and data collection;

[0089] The pressure detection processing module 20 is built-in with an STM32F103 micro control unit (MCU) and a 12-bit A / D converter, and is connected with the rotation detection part two 22 (including a pressure sensor and a rotary encoder) signal:

[0090] The pressure sensor collects the pressure data P of the pressure detection wheel 21 in real time i (unit: N), with a sampling frequency of 100 Hz (i.e. collecting 1 data every 0.01 seconds), reflecting the height difference change of the garment piece;

[0091] The height difference h i and the pressure P i satisfy the linear relationship:

[0092] ;

[0093] Wherein, k is the fabric stiffness coefficient (cotton fabric k is about 0.8 mm / N, and chemical fiber fabric k is about 1.2 mm / N), and b is the initial thickness compensation value (default b=0.1 mm);

[0094] The rotary encoder records the number of rotations of the pressure detection wheel 21, which is converted into the moving distance of the expansion area (each rotation corresponds to a circumference of 30mm). Combined with the moving speed of the device (0-100mm / s), the effective sampling interval within 0.5 seconds is determined (for example, when the moving speed is 50mm / s, 25mm moves in 0.5 seconds, corresponding to approximately 833 samples).

[0095] (2) Data preprocessing and outlier removal;

[0096] MCU collects P in 0.5 seconds i Perform preprocessing:

[0097] Set the pressure threshold range: According to the common thickness of clothing fabrics (0.1-5mm), the corresponding pressure threshold is P min =0.1N (0.1mm thickness) to P max =5N (5mm thickness);

[0098] Eliminate abnormal data that exceeds the threshold (such as P caused by the instantaneous bulge of fabric wrinkles). i >P max , or P caused by fabric damage i <P min ), retain the valid data groups P1, P2, ..., P n (n is the effective sampling number).

[0099] (3) Calculation of average pressure value;

[0100] Use the sliding average method (existing data processing method) to calculate the average pressure value within 0.5 seconds , the formula is as follows:

[0101] ;

[0102] The average pressure value The average height difference from the extended area correspond( ), to ensure that when the subsequent detection control module 4 adjusts the line drawing pressure, it can match the overall change trend of the height difference (for example, the average height difference of 2mm corresponds to the average pressure of 2N, and when k=0.8mm / N under cotton fabric, ).

[0103] (4) Data output

[0104] MCU will calculate the and corresponding The data is packaged into a standard signal (via RS485 protocol) and transmitted to the detection and control module 4 as the reference value for the pressure adjustment of the line drawing equipment. The original data and the average result (which can be traced back to nearly 10 groups of 0.5-second interval data) are stored to facilitate subsequent trajectory calibration.

[0105] Through the above process, the pressure detection processing module 20 can accurately generate an average pressure value reflecting the change in height difference, avoid the misadjustment of the line pressure caused by local fabric fluctuations (such as slight wrinkles, yarn protrusions), and ensure that the line traces in the gradual change area are uniform (error ≤0.2mm).

[0106] In an embodiment of the present application, the working steps of the detection control module 4 include:

[0107] Step 1, receiving the pressure adjustment signal transmitted by the pressure detection processing module 20, and simultaneously acquiring the real-time pressure and the number of rotations (reflecting the line position) of the line wheel 15 fed back by the rotation detection part 14;

[0108] Step 2, calculating the delay time of pressure adjustment (to ensure that the line wheel 15 reaches the thickness change area at the same time) according to the initial distance (such as 15cm) between the pressure detection wheel 21 and the line wheel 15 and the movement speed of the cutting piece;

[0109] Step 3, sending control instructions to the pressure adjustment system:

[0110] If it is a constant thickness difference, directly drive the lifting rod 13 to adjust the height of the line wheel 15 to match the target value of the line pressure;

[0111] If it is a gradual thickness difference, gradually adjust the lifting rod 13 according to the average pressure value, and update the pressure parameter every 5cm of movement;

[0112] Step 4, comparing the number of rotations of the line wheel 15 and the pressure detection wheel 21 in real time, if the deviation between the two exceeds 5% (such as fabric stretching leading to inconsistent displacement), send a compensation signal to the pressure adjustment system to correct the line pressure;

[0113] Step 5, when the pressure detection processing module 20 feeds back that the pressure of the pressure detection wheel 21 is zero (disengaged from the cutting piece), control the line wheel 15 to stop the line work after moving a preset distance (initial distance + movement distance of the pressure detection wheel 21).

[0114] It should be noted that in the present application, unless otherwise specified and limited, the terms "sliding", "rotating", "fixed", "provided with" and the like should be understood broadly, for example, it can be a welded connection, or a bolted connection, or integrated; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0115] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A line drawing and positioning tool for garment seaming, comprising a line drawing and positioning frame, characterized in that: Also includes: A pressure regulating housing, the pressure regulating housing being fixedly mounted on the line drawing positioning frame, and a pressure regulating system being provided in the pressure regulating housing, and a line drawing device being detachably mounted on the pressure regulating system; a detection and manipulation module, the detection and manipulation module being fixedly mounted on the pressure regulating housing and being signal-connected to the pressure regulating system; and a supporting leg, wherein the supporting leg is arranged on the line drawing positioning frame, a pressure detection wheel is rotatably mounted on the bottom end of the supporting leg, and a pressure detection processing module is also fixedly mounted on the supporting leg; The pressure detection wheel is connected to the pressure detection processing module by signal, and the pressure detection processing module is also connected to the detection and control module by signal; The line drawing positioning frame is further provided with a propulsion detection device for driving the legs to move horizontally on the line drawing positioning frame, and the lowest end of the pressure detection wheel and the lowest end of the line drawing device are located on the same horizontal plane.

2. The garment seam tracing and positioning tool according to claim 1, characterized in that: The line drawing positioning frame is provided with a limit installation groove, and the pressure regulating shell is connected to the line drawing positioning frame through the limit installation groove.

3. The garment seam marking and positioning tool according to claim 1, characterized in that: The line drawing device comprises: a lifting rod connected to the pressure regulating system; A line drawing support rod, the line drawing support rod is detachably connected to the lifting rod through a flange joint, and a line drawing wheel is rotatably mounted on the bottom end of the line drawing support rod; and a first rotation detection portion, which is located at the line drawing wheel and is used to detect the pressure applied to the line drawing wheel and the number of revolutions.

4. The garment seam tracing and positioning tool according to claim 3, characterized in that: The support leg is also provided with a second rotation detection part, which is arranged close to the pressure detection wheel and is used to detect the pressure applied to the second rotation detection part and the number of rotations.

5. The garment seam tracing and positioning tool according to claim 4, characterized in that: The propulsion detection equipment includes: A mounting seat, the mounting seat being fixedly mounted on the pressure regulating housing, and a translation driving member being fixedly mounted on the mounting seat; a displacement detection support, the displacement detection support being fixedly mounted on the line drawing positioning frame, and a screw being provided between the displacement detection support and the translation drive member, wherein the displacement detection support is used to detect the number of revolutions of the screw; A threaded sleeve, which is sleeved on the screw and connected to the support leg; and a limiting unit, wherein the limiting unit is connected to the line drawing positioning frame and the threaded sleeve respectively.

6. The garment seam marking and positioning tool according to claim 5, characterized in that: The limiting unit includes: A movable detection limit groove is provided on the line drawing positioning frame; and a slider assembly, wherein the slider assembly is fixedly mounted on the threaded sleeve and is also inserted into the movement detection limit groove and is slidably connected to the movement detection limit groove.

7. The garment seam marking and positioning tool according to claim 5 or 6, characterized in that: Also includes: A protective connecting rod is fixedly installed between the threaded sleeve and the supporting leg.

8. The garment seam marking and positioning tool according to claim 6, characterized in that: The working steps of the pressure detection processing module include: Step 1: Receive pressure data and rotation number fed back by the pressure detection wheel in real time; Step 2: Analyze the pressure data to determine whether the thickness of the cut piece is a constant value or a gradually changing value. If the thickness difference is a constant, calculate the target pressure adjustment value; if the thickness difference is a gradually changing value, send a start signal to the propulsion detection device; Step 3: After the propulsion detection equipment is started, the pressure data in the expansion area is continuously collected, and the average pressure value is generated every 0.5 seconds; Step 4: Convert the processed pressure adjustment value or average pressure value into an electrical signal and transmit it to the detection and control module, and simultaneously record the movement distance of the pressure detection wheel.

9. The garment seam tracing and positioning tool according to claim 8, characterized in that: In step 3, after the propulsion detection equipment is started, the pressure detection processing module receives the pressure data collected by the pressure sensor and the moving distance recorded by the rotary encoder through the built-in microcontroller unit and A / D converter. After eliminating abnormal data exceeding the 0.1-5N threshold, the sliding average method is used to calculate the average pressure value within 0.5 seconds, and the average pressure value is transmitted to the detection control module.

10. The garment seam marking and positioning tool according to claim 1, characterized in that: The working steps of the detection and control module include: Step 1: Receive the pressure adjustment signal transmitted by the pressure detection processing module, and simultaneously obtain the real-time pressure and rotation number of the line drawing wheel fed back by the rotation detection unit; Step 2: Calculate the delay time of pressure adjustment according to the initial distance between the pressure detection wheel and the line drawing wheel and the moving speed of the device; Step 3: Send a control command to the pressure regulation system to directly adjust the height of the line drawing wheel for a constant thickness difference, and gradually adjust the height according to the average pressure value for a gradual thickness difference, updating the pressure parameter every 5 cm. Step 4: Compare the rotation numbers of the line drawing wheel and the pressure detection wheel in real time. If the deviation exceeds 5%, a compensation signal is sent to correct the line drawing pressure. Step 5: When the pressure of the pressure detection wheel is zero, the line drawing wheel is controlled to stop the line drawing operation after moving a preset distance.

Images