A kind of automatic jointer deviation correcting device
The automatic sewing machine's correction device achieves real-time correction of the processed sheet material through its sensing components and clamp adjustment components, solving the problem of high feeding accuracy requirements in existing sewing machines and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JACK SEWING MASCH CO LTD
- Filing Date
- 2023-02-07
- Publication Date
- 2026-06-23
AI Technical Summary
Existing sewing machines require high precision during sheet material feeding, resulting in low installation and replacement efficiency, and manual intervention increases safety hazards.
An automatic seam sewing machine correction device is adopted, including a sensing component, a clamp adjustment component, and a pressure roller component. By sensing the position of the processed sheet in real time, the corrective components at the middle and end are used to automatically correct and adjust the sheet to ensure that it moves within the expected trajectory.
It improves the efficiency of processing sheet installation and replacement, reduces manual intervention, lowers safety hazards, and ensures the accuracy of sewing trajectory and splicing quality.
Smart Images
Figure CN116446115B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sewing machine technology, and more particularly to an automatic stitching machine correction device. Background Technology
[0002] Through years of development, the sewing machine technology field has continuously reformed and expanded its scale in response to the increasing demands of modern industries. It has also integrated with the field of automation, gradually replacing traditional manual sewing to achieve the goals of high efficiency, safety, and precision. However, in today's market, a major challenge remains: how to accurately feed the processed sheets and ensure corrective adjustments during the feeding process. This is especially true when handling longer sheets. Precise trajectory verification is required during the initial installation phase, and the installation position demands high precision, leading to lengthy processing times. Furthermore, when changing sheets, readjustment is necessary, resulting in low production efficiency.
[0003] For example, publication number "CN218203378U" discloses "an automatic elastic band stitching sewing machine," which includes a sewing table and a sewing machine body fixedly mounted on top of the sewing table. A material box is fixedly mounted on top of the sewing table, and an automatic feeding component is also mounted on top of the sewing table. A clamping component is mounted on the sewing table, and the automatic feeding component includes a drive motor fixedly mounted on one side of the sewing table, with a drive screw fixedly connected to the output shaft of the drive motor. However, in practical applications, this type of sewing machine requires extremely high precision in feeding the processed sheet material. If there is an error in the initial installation position of the processed sheet material, it will lead to a deviation in the sewing path, resulting in a high scrap rate. Furthermore, manual intervention during the feeding process will slow down production efficiency and increase safety hazards caused by overlapping operations. Summary of the Invention
[0004] In view of the problems mentioned in the background art, such as the excessively high requirements for the installation and feeding accuracy of the processed sheet and the low adjustment efficiency, the present invention provides an automatic sewing machine correction device that can perform real-time correction and adjustment of the processed sheet during the feeding process. This results in a higher error tolerance rate for the installation of the processed sheet before processing, improves the efficiency of workers when installing and replacing processed sheets, and achieves adaptive adjustment without manual intervention during the feeding process. This reduces the safety hazards caused by cross-operations and ensures that the sewing trajectory is always within the expected range.
[0005] To achieve the above objectives, the present invention adopts the following technical solution.
[0006] An automatic seam-sewing machine correction device includes a sheet material processing unit and the following components:
[0007] Sewing machine: Used for sewing processed sheets of material;
[0008] Conveyor plate: Used for conveying processed sheets;
[0009] Sensing components: positioned near the sewing machine to locate the sewing edge of the sheet material being processed;
[0010] The clamp adjustment assembly includes a middle correction component and a tail correction component, used to clamp the processing sheet and correct the sewing edge of the processing sheet based on feedback from the sensing component. In this invention, a clamp adjustment assembly is provided at the edge of the conveyor plate and communicates with a sensing component located near the sewing machine. The sensing component senses the position of the processing sheet and performs real-time correction during the feeding process. A drive belt is provided on the conveyor plate, and a traction component is provided at the end of the conveyor plate near the sewing machine for traction and transmission of the processing sheet. Preferably, the clamp adjustment assembly includes a middle correction component and a tail correction component, wherein the tail correction component clamps the end of the processing sheet away from the sewing machine, while the middle correction component clamps the... In the middle area of the sheet material, especially when the sheet material is too long, the middle correction component can improve the accuracy of correction. In the splicing process, the edges of the sheet material are generally spliced and sewn, and the clamp adjustment component clamps and fixes the edges of the sheet material. When correction is performed, the position of the sheet material changes faster, resulting in better correction accuracy. Preferably, floating protrusions can be provided on the clamps in the clamp adjustment component. The elastic force inside the floating protrusions can be used to further clamp the sheet material. The floating protrusions include, but are not limited to, spring plungers and ball plungers.
[0011] Preferably, the sensing component includes a detection plate, and the processing sheet includes an upper sheet and a lower sheet. The upper sheet is disposed above the detection plate, and the lower sheet is disposed below the detection plate. Emitter assemblies are disposed on both the upper and lower sides of the detection plate. The sensing component includes a detection plate, wherein emitting assemblies are disposed on both the upper and lower sides of the detection plate. Laser signals emitted by the emitting assemblies are transmitted to the detection plate to monitor the positional offset of the processing sheet. The processing sheet includes an upper sheet and a lower sheet, and the detection plate is disposed between the upper sheet and the lower sheet, allowing for separate position monitoring of the upper and lower sheets. Both the middle and tail correction assemblies are equipped with two clamps for clamping the upper and lower sheets and performing independent correction adjustments.
[0012] Preferably, the transmitter group includes a first transmitter and a second transmitter, and the edge of the processed sheet moves between the first transmitter and the second transmitter. The transmitter group includes a first transmitter and a second transmitter, both of which can emit laser signals. When the laser signal shines on the detection plate, the detection plate can receive the signal. During the movement of the processed sheet, when the detection plate detects the laser signal of the second transmitter but not the laser signal of the first transmitter, it indicates that the edge of the processed sheet is within the expected trajectory. When the detection plate detects the laser signals of both the first and second transmitters, it indicates that the edge of the processed sheet has shifted towards the first transmitter. Therefore, the clamp adjustment assembly moves the processed sheet towards the second transmitter for correction. When the detection plate does not detect the laser signals of either the first or second transmitter, the clamp adjustment assembly moves the processed sheet towards the first transmitter, so that the laser signal of the second transmitter can be detected by the detection plate. This realizes the position sensing of the processed sheet by the sensing component. The distance between the laser signals of the first and second transmitters is controlled to be within the expected movement trajectory range of the processed sheet, ensuring that the processed sheet can always move between the two.
[0013] Preferably, a pressure roller assembly is provided on the conveyor plate, and the processing sheet is located between the pressure roller assembly and the conveyor plate. The pressure roller assembly and the conveyor plate synchronously drive the movement of the processing sheet. Both the pressure roller assembly and the conveyor plate are equipped with conveyor belts. The processing sheet is placed between the pressure roller assembly and the conveyor plate, and the pressure roller assembly is used to press the processing sheet while feeding it. The pressure roller assembly is located near the sewing machine end, clamping and conveying the end of the processing sheet to improve traction. In the sewing process, there are generally two processing sheets, which ensures that the two processing sheets receive the same traction force, ensuring synchronous movement of the processing sheets and improving the sewing quality.
[0014] Preferably, the sensing component has an anti-roll plate near the sewing machine, and the processing sheet is disposed between the anti-roll plate and the conveyor plate. The anti-roll plate, located on the conveyor plate, presses the processing sheet firmly against it. Its proximity to the sewing presser foot provides tension to the processing sheet, preventing wrinkles caused by the presser foot's up-and-down movement and ensuring the sheet's surface flatness.
[0015] Preferably, the clamp adjustment assembly includes a mounting plate on which a stationary clamp is fixedly connected. The stationary clamp includes a vertical plate, and a movable clamp is movably connected to the vertical plate. During operation, the sheet material to be processed is placed between the stationary and movable clamps. The stationary clamp remains stationary, while the movable clamp, movably connected to the vertical plate, can rotate relative to it, clamping the sheet material. Simultaneously, the vertical plate provides guidance for the movable clamp. Furthermore, the vertical plate is positioned on the stationary clamp close to the sewing machine, providing vertical support to the movable clamp during the movement of the sheet material, preventing excessive load on the connection between the vertical plate and the movable clamp.
[0016] Preferably, the movable clamp is hinged to a vertical plate. The movable clamp includes a bend, which is connected to a tension member, which is hinged to a mounting plate. The mounting plate can be integrally formed with the stationary clamp or it can be separate. Both the mounting plate and the stationary clamp remain stationary when clamping the sheet material. The bend tension member on the movable clamp rotates the movable clamp by stretching the bend, thereby controlling the clamping of the sheet material.
[0017] Preferably, the clamp adjustment assembly includes a fixed bracket, a mounting plate slidably connected to the fixed bracket, and an adjustment pulley on the fixed bracket. The adjustment pulley includes a timing belt, and a connecting block is mounted on the timing belt. The connecting block is fixedly connected to the mounting plate. The fixed bracket is movably connected to the mounting plate via a slide rail assembly. The rotation and movement of the adjustment pulley on the fixed bracket causes the connecting block on the timing belt to slide, thereby causing the mounting plate to move relative to the fixed bracket. This, in turn, causes the processed sheet to move laterally. The displacement of the adjustment pulley is adapted according to the offset sensed by the sensing component, and real-time correction is performed during the movement to ensure the correct trajectory of the processed sheet. There are two sets of static and dynamic clamps in the splicing operation, each with two corresponding adjustment pulleys, which respectively correct the displacement of the upper and lower processed sheets, ensuring the accuracy of the splicing quality.
[0018] Preferably, the middle correction component includes a clearance slide, the movement direction of which is staggered with the movement direction of the conveyor plate. The middle correction component and the tail correction component move simultaneously with the processed sheet. The middle correction component is located in the middle region of the processed sheet. When the processed sheet has traveled halfway, the middle correction component approaches the sewing machine and needs to release the processed sheet and withdraw to avoid interfering with the subsequent tail correction component. After the middle correction component withdraws, the processed sheet continues to move, and the tail correction component performs real-time correction. Therefore, the middle correction component is equipped with a clearance slide, which can move the middle correction component away from the conveyor plate to make way for the tail correction component. Thus, the movement direction of the clearance slide is staggered with the movement direction of the conveyor plate, preferably perpendicularly intersecting.
[0019] Preferably, the conveyor plate includes a central conveying zone, on which the central correction assembly moves, and at both ends of the central conveying zone, clearance grooves are provided. Since the moving clamps need to rotate to clamp and release at both ends of the central conveying zone, the clearance grooves prevent interference between the moving clamps and the conveyor plate.
[0020] The beneficial effects of this invention are as follows:
[0021] (1) Real-time correction of the processed sheet is achieved through the middle correction component and the tail correction component. When dealing with long processed sheets, the middle correction component can ensure the accuracy of correction, and the response speed is faster, resulting in better control of the processed sheet.
[0022] (2) Through the cooperation of the detection plate and the transmitter group, the movement trajectory of the processed sheet is always controlled within the expected range, thus ensuring the quality of the splicing.
[0023] (3) The pressure roller assembly ensures the synchronous movement of the upper and lower processing sheets during the splicing process, avoiding misalignment and wrinkles, and improving the accuracy of splicing and the flatness of processing;
[0024] (4) By setting a clearance sliding group on the middle correction component, the processing sheet can be adjusted in a segmented manner, so that the middle correction component and the tail correction component do not interfere with each other. Attached Figure Description
[0025] Figure 1 This is the first isometric view of the present invention.
[0026] Figure 2 This is the second isometric view of the present invention.
[0027] Figure 3 yes Figure 2 A schematic diagram of the structure at point A in the middle.
[0028] Figure 4 yes Figure 2 Axonometric view of the central alignment correction component.
[0029] Figure 5 yes Figure 4 A schematic diagram of the structure at point B.
[0030] Figure 6 This is a schematic diagram of the first stroke of Example 3.
[0031] Figure 7 This is a schematic diagram of the second stroke of Example 3.
[0032] Figure 8 This is a structural schematic diagram of Example 4.
[0033] Figure 9 This is a structural schematic diagram of Example 5.
[0034] In the diagram: 1 Sewing machine, 2 Conveyor plate, 21 Middle conveyor zone, 22 Clearance groove, 3 Sensing component, 31 Detection plate, 32 Launcher assembly, 321 Launcher No. 1, 322 Launcher No. 2, 4 Clamp adjustment assembly, 401 Mounting plate, 402 Static clamp, 403 Vertical plate, 404 Moving clamp, 405 Bend, 406 Tensioning component, 4061 Double stroke cylinder, 407 Fixed bracket, 408 Adjusting pulley, 409 Synchronous belt, 410 Connecting block, 411 Clearance slide block, 41 Middle correction assembly, 42 Tail correction assembly, 5 Pressure roller assembly, 6 Anti-roll pressure plate, 7 Floating protrusion, 71 Vertical protrusion, 72 Diagonal protrusion. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0036] Example 1:
[0037] like Figure 1 , 2 As shown, an automatic seam-sewing machine correction device includes a sheet material processing unit and the following components:
[0038] Sewing machine 1: Used for sewing processed sheets;
[0039] Conveyor plate 2: Used for conveying processed sheets;
[0040] Sensor component 3: Located near the sewing machine 1, it positions the sewing edge of the processed sheet material;
[0041] Clamp adjustment assembly 4: includes a middle correction assembly 41 and a tail correction assembly 42, used to clamp the processing sheet and correct the sewing edge of the processing sheet according to the feedback of the sensing assembly 3.
[0042] In this embodiment, a clamp adjustment assembly 4 is provided at the edge of the conveyor plate 2 and is connected to a sensing assembly 3 located near the sewing machine 1. The sensing assembly 3 senses the position of the processed sheet and performs real-time correction during the feeding process of the processed sheet. A transmission belt is provided on the conveyor plate 2, and a traction assembly is provided at the end of the conveyor plate 2 near the sewing machine 1. In this embodiment, the traction assembly is a pressure roller assembly used to traction and transport the processed sheet. Preferably, the clamp adjustment assembly 4 includes a middle correction assembly 41 and a tail correction assembly 42, wherein the tail correction assembly 42 clamps the processed sheet. The middle correction component 41 clamps the middle area of the processing sheet, away from the sewing machine 1. Especially when the processing sheet is too long, the middle correction component 41 can make the correction more accurate. In the splicing work, the edges of the processing sheet are generally spliced and sewn. The clamp adjustment component 4 clamps and fixes the edges of the processing sheet. When correction is performed, the position of the processing sheet changes faster, making the correction more accurate. The middle correction component and the tail correction component are equipped with a moving slide block, which can drive it to move along the conveying direction of the conveyor plate to adapt to the sewing speed of the sewing machine.
[0043] like Figure 2 , 3 As shown, the sensing component 3 includes a detection plate 31, and the processing sheet includes an upper sheet and a lower sheet. The upper sheet is disposed above the detection plate 31, and the lower sheet is disposed below the detection plate 31. A transmitter group 32 is disposed on both the upper and lower sides of the detection plate 31. The transmitter group 32 includes a first transmitter 321 and a second transmitter 322. The edge of the processing sheet moves between the first transmitter 321 and the second transmitter 322.
[0044] The sensing component 3 includes a detection plate 31, on which emitting components are provided on both the upper and lower sides. The laser signals emitted by the emitting components are transmitted to the detection plate 31 to monitor the positional deviation of the processed sheet. The processed sheet includes an upper sheet and a lower sheet, and the detection plate 31 is positioned between the upper sheet and the lower sheet, allowing the upper sheet and the lower sheet to be monitored separately. Both the middle correction component 41 and the tail correction component 42 are provided with two clamps for clamping the upper sheet and the lower sheet and for independently correcting and adjusting them. The transmitter group 32 includes a first transmitter 321 and a second transmitter 322. Both the first transmitter 321 and the second transmitter 322 can emit laser signals. When the laser signal shines on the detection plate 31, the detection plate 31 can receive the signal. During the movement of the processed sheet, when the detection plate 31 detects the laser signal of the second transmitter 322 but does not detect the laser signal of the first transmitter 321, it indicates that the edge of the processed sheet is within the expected trajectory. When the detection plate 31 detects the laser signals of both the first transmitter 321 and the second transmitter 322, it indicates that the edge of the processed sheet is moving towards the first transmitter 321. 21 offset, therefore the clamp adjustment component 4 drives the processing sheet to move towards the second transmitter 322 for correction. When the detection board 31 does not detect the laser signals of the first transmitter 321 and the second transmitter 322, the clamp adjustment component 4 drives the processing sheet to move towards the first transmitter 321, so that the laser signal of the second transmitter 322 can be detected by the detection board 31. This realizes the position sensing of the processing sheet by the sensing component 3. The distance between the laser signals of the first transmitter 321 and the second transmitter 322 is controlled to be the expected movement trajectory range of the processing sheet, ensuring that the processing sheet can always move between the two.
[0045] like Figure 1 , 2 As shown, a pressure roller assembly 5 is provided on the conveyor plate 2, and the processing sheet is located between the pressure roller assembly 5 and the conveyor plate 2. The pressure roller assembly 5 and the conveyor plate 2 synchronously drive the processing sheet to move.
[0046] Both the pressure roller assembly 5 and the conveyor plate 2 are equipped with conveyor belts. The processing sheet is placed between the pressure roller assembly 5 and the conveyor plate 2. While pressing the processing sheet, the conveyor plate 2 drives the processing sheet to be fed. The pressure roller assembly 5 is located at one end near the sewing machine 1. It clamps and conveys the end of the processing sheet to improve the traction force. In the sewing process, there are generally two processing sheets. The pressure roller assembly abuts against the upper sheet, and the conveyor plate abuts against the lower sheet. This ensures that the two processing sheets are subjected to the same traction force, ensuring the synchronous movement of the processing sheets and improving the sewing quality.
[0047] like Figure 2As shown, the sensing component 3 is provided with an anti-rolling pressure plate 6 on the side near the sewing machine 1, and the processing sheet is disposed between the anti-rolling pressure plate 6 and the conveying plate 2.
[0048] The anti-rolling pressure plate 6 is installed on the conveyor plate 2, which can press the processed sheet tightly on the conveyor plate 2. The anti-rolling pressure plate 6 is located close to the sewing presser foot of the sewing machine 1, which can provide a certain tension force to the processed sheet, prevent the up and down movement of the sewing presser foot from causing wrinkles in the processed sheet, and ensure the surface flatness of the processed sheet.
[0049] like Figure 4 , 5 As shown, the clamp adjustment assembly 4 includes a mounting plate 401, on which a stationary clamp 402 is fixedly connected. The stationary clamp 402 includes a vertical plate 403, on which a movable clamp 404 is movably connected. The movable clamp 404 is hinged to the vertical plate 403 and includes a bend 405. The bend 405 is connected to a tension member 406, which is hinged to the mounting plate 401. The clamp adjustment assembly 4 includes a fixed bracket 407, on which the mounting plate 401 is slidably connected. An adjusting pulley 408 is provided on the fixed bracket 407. The adjusting pulley 408 includes a synchronous belt 409, on which a connecting block 410 is provided. The connecting block 410 is fixedly connected to the mounting plate 401.
[0050] During operation, the sheet material is placed between the stationary clamp 402 and the movable clamp 404. The stationary clamp 402 remains fixed, while the movable clamp 404 is movably connected to the vertical plate 403 and can rotate relative to it to clamp the sheet material. The vertical plate 403 also provides guidance for the movable clamp 404. Furthermore, the vertical plate 403 is positioned close to the sewing machine 1 on the stationary clamp 402, providing vertical support to the movable clamp 404 during the movement of the sheet material, preventing excessive load on the connection between the vertical plate 403 and the movable clamp 404. The mounting plate 401 can be separate from the stationary clamp 402. Both the mounting plate 401 and the stationary clamp 402 remain fixed when clamping the sheet material. The movable clamp 404 is equipped with a bent angle 405 and a tensioning member 406 that pulls... The bending angle 405 drives the movable clamp 404 to rotate, thereby controlling the clamping of the processed sheet. The fixed bracket 407 is movably connected to the mounting plate 401 through the slide rail assembly. The adjusting pulley 408 on the fixed bracket 407 rotates and moves, thereby driving the connecting block 410 on the synchronous belt 409 to slide, which in turn causes the mounting plate 401 to move relative to the fixed bracket 407, thereby driving the processed sheet to move laterally. The displacement of the adjusting pulley 408 is adapted according to the offset sensed by the sensing component 3, and real-time correction is performed during the movement to ensure the correct movement trajectory of the processed sheet. There are two sets of static clamps 402 and movable clamps 404 in the splicing operation, and two adjusting pulleys 408 are also provided to correct the displacement of the upper and lower processed sheets respectively, ensuring the accuracy of the splicing quality.
[0051] like Figure 4 As shown, the middle correction component 41 includes an avoidance sliding group 411, the movement direction of which is intersected with the movement direction of the conveyor plate 2.
[0052] The middle correction component 41 and the tail correction component 42 move simultaneously with the processed sheet. The middle correction component 41 is located in the middle area of the processed sheet. When the processed sheet has traveled halfway, the middle correction component 41 approaches the sewing machine 1. The middle correction component 41 needs to release the processed sheet and withdraw to avoid interfering with the subsequent tail correction component 42. After the middle correction component 41 withdraws, the processed sheet continues to move. At this time, the tail correction component 42 performs real-time correction. Therefore, the middle correction component 41 is equipped with a clearance slide 411, which can drive the middle correction component away from the conveyor plate 2 to make way for the tail correction component 42. Therefore, the movement direction of the clearance slide 411 is staggered with the movement direction of the conveyor plate 2, preferably the two are perpendicularly intersecting.
[0053] like Figure 2 , 3As shown, the conveyor plate 2 includes a central conveying area 21, on which the central correction assembly 41 moves. Both ends of the central conveying area 21 are provided with clearance grooves 22. Since the movable clamp 404 needs to rotate to clamp and release at both ends of the central conveying area 21, the clearance grooves 22 prevent interference between the movable clamp 404 and the conveyor plate 2.
[0054] The assembly and operation process of the automatic sewing machine correction device in this embodiment is as follows: In this embodiment, two processing sheets are sewn together, namely an upper sheet and a lower sheet. First, the ends of the upper and lower sheets are aligned and placed under the presser foot of the sewing machine 1. The edges of the processing sheets are pressed together by the anti-roll pressure plate 6. The upper sheet is placed above the detection plate 31 and the lower sheet is placed below the detection plate 31. Then, the processing sheets are passed through the middle correction component 41. The middle correction component 41 includes two sets of static clamps 402 and a movable clamp 404. The upper and lower sheets are placed between the movable clamp 404 and the static clamp 402. Then, the tail correction component 42 clamps the tail area of the processing sheet and passes through... The redundant positioning mechanism in the tail correction assembly 42 adapts to the distance difference between the upper and lower sheets. After the tail correction assembly 42 clamps, the middle correction assembly 41 clamps the processed sheet. Then, the pressure roller assembly 5 presses down, pressing the processed sheet onto the conveyor plate 2. Then, the start button is pressed. The conveyor plate 2, pressure roller assembly 5, middle correction assembly 41, and tail correction assembly 42 generate corresponding speeds according to the rotation speed of the sewing machine 1. During the movement, the edge of the processed sheet is always between the laser signals emitted by the first transmitter 321 and the second transmitter 322. Under normal circumstances, the detection plate 31 only receives the laser signal from the second transmitter 322. When it receives the laser signal from the first transmitter 321, the middle correction assembly... Component 41 moves the processed sheet towards the second transmitter 322. When the detection plate 31 does not receive any laser signal, the middle correction component 41 moves the processed sheet towards the first transmitter 321 until the edge of the processed sheet is between the laser signals of the first transmitter 321 and the second transmitter 322. The processed fabric after the upper and lower sheets are sewn together will also be moved forward by the pressure roller component 5 to avoid affecting subsequent sewing. When the middle correction component 41 moves in front of the detection plate 31, the avoidance slide group 411 starts to move, the moving clamp 404 releases the processed sheet, and the avoidance slide group 411 moves the middle correction component 41 away from the conveyor plate 2. When the tail correction component 42 moves in front of the detection plate 31... At this time, the anti-roll pressure plate 6 is tilted upward under the drive of the cylinder, and the sensing component 3 is also moved away from the conveyor plate 2 under the drive of the motor, making way for the tail correction component 42. The tail correction component 42 continues to move until it reaches the presser foot of the sewing machine 1, triggering the positioning sensor. The tail correction component 42 first releases the upper sheet, and after a set time, the lower sheet is also released. Under the action of the upper and lower teeth of the sewing machine 1 and the drive of the pressure roller component 5, sewing continues until all the processed sheets are sewn. After the tail correction component 42 returns to the initial position, the middle correction component 41 returns to the clearance groove 22 near the end of the tail correction component 42 in the middle conveyor area 21. The remaining components then return to their original positions, ready for the next sewing operation of the processed sheets.
[0055] Example 2:
[0056] An automatic seam correction method includes the following steps:
[0057] S1: Place the head of the sheet material under the presser foot of the sewing machine;
[0058] S2: The tail end of the processed sheet is clamped by the tail correction component. After clamping, the tail correction component moves along the direction of the conveyor plate to tighten the processed sheet.
[0059] S3: The central alignment component clamps the central area of the processed sheet;
[0060] S4: The central correction component performs correction operations based on the signals from the sensing component;
[0061] S5: When the middle correction component moves in front of the sensing component, it releases the processing sheet and moves away from the conveyor plate under the action of the avoidance sliding block;
[0062] S6: The tail correction component continues to move and performs correction operations based on the signals from the sensing component.
[0063] In the splicing of long, strip-shaped processing sheets, the distance between the first and second ends of the sheet is too great, resulting in an excessively large movement path for the tail-end correction motion. If the correction motion is too fast, it will cause the sheet to vibrate; if it is too slow, it will affect overall efficiency. Therefore, a middle correction component and a tail correction component are set up. Through segmented correction coordination, the position of the sheet being clamped by the clamping adjustment component is always kept not far from the front end of the sensing component, resulting in higher correction response accuracy and faster response speed. Furthermore, by using a clearance sliding block, the tail correction component and the middle correction component can avoid interference and seamlessly connect without requiring manual adjustment by the operator, thus improving production efficiency.
[0064] Example 3:
[0065] like Figure 6 , 7As shown, unlike Embodiment 1, this embodiment includes a floating protrusion 7 on the moving clamp of the central correction component. The floating protrusion 7 is elastically connected to the moving clamp. The tensioning component is a double-stroke cylinder 4061. During the first stroke, the floating protrusion abuts against the processing sheet and clamps the processing sheet through the internal elastic component. At this time, the processing sheet is initially clamped. The operator can manually adjust the edge position of the processing sheet and stretch the processing sheet laterally to eliminate wrinkles generated during the clamping process of the moving clamp. Subsequently, the second stroke of the double-stroke cylinder is triggered to fix and clamp the adjusted processing sheet. Through the segmented strokes of pre-pressing and pressurizing, the situation where the position cannot be adjusted after clamping is avoided, while ensuring the surface of the processing sheet is flat. When the initial displacement of the floating protrusion extending out of the moving clamp is different, the extension size gradually decreases in the direction away from the conveyor plate to ensure that all the floating protrusions on the moving clamp abut against the processing sheet synchronously and avoid wrinkles.
[0066] Example 4:
[0067] like Figure 8 As shown, unlike Embodiment 3, in this embodiment, the area where the moving clamp and the stationary clamp clamp the processed sheet is a clamping area. The floating protrusion includes an oblique protrusion 72 and a vertical protrusion 71. The protrusion head of the oblique protrusion clamps the center point of the area, and the floating protrusion at the center point is a vertical protrusion. When the first stroke changes to the second stroke, the floating protrusions on both sides of the center point retract under the action of compression force, and the contact point with the stationary clamp also moves to both sides, thereby generating a bidirectional pulling force on the processed sheet, achieving a flattening effect and improving the accuracy in the correction process.
[0068] Example 5:
[0069] like Figure 9 As shown, unlike Embodiment 3, in this embodiment, the floating protrusion at the end away from the conveyor plate is set as a vertical protrusion 71, and the protrusion heads of the remaining oblique protrusions 72 are offset toward the side away from the conveyor plate. When the first stroke changes to the second stroke, the edge of the processed sheet remains basically still, and the sheet is flattened with the edge as the reference, so that the positional accuracy of the edge of the processed sheet remains unchanged.
[0070] In addition to the above embodiments, within the scope disclosed in the claims and specification of this invention, the technical features of this invention can be reselected and combined to form new embodiments. These can be achieved by those skilled in the art without creative effort. Therefore, these embodiments not described in detail in this invention should also be regarded as specific embodiments of this invention and within the protection scope of this invention.
Claims
1. An automatic seam-sewing machine correction device, comprising processing sheet material, characterized in that, It also includes the following devices: Sewing machine: Used for sewing processed sheets of material; Conveyor plate: Used for conveying processed sheets; Sensing components: positioned near the sewing machine to locate the sewing edge of the sheet material being processed; Clamp adjustment assembly: includes a middle correction assembly and a tail correction assembly, used to clamp the processing sheet and correct the sewing edge of the processing sheet according to the feedback of the sensing assembly; The clamp adjustment assembly includes a mounting plate, on which a stationary clamp is fixedly connected. The stationary clamp includes a vertical plate, on which a movable clamp is movably connected. A floating protrusion is provided on the movable clamp, which is included in the middle correction section, and the floating protrusion is elastically connected to the movable clamp.
2. The automatic seam correction device for a sewing machine according to claim 1, characterized in that, The sensing component includes a detection plate, and the processing sheet includes an upper sheet and a lower sheet. The upper sheet is disposed above the detection plate, and the lower sheet is disposed below the detection plate. Transmitter assemblies are disposed on both the upper and lower sides of the detection plate.
3. The automatic seam correction device for a sewing machine according to claim 2, characterized in that, The transmitter group includes a first transmitter and a second transmitter, and the edge of the processed sheet moves between the first transmitter and the second transmitter.
4. The automatic seam correction device for a sewing machine according to claim 1, characterized in that, The conveyor plate is equipped with a pressure roller assembly, and the processing sheet is located between the pressure roller assembly and the conveyor plate. The pressure roller assembly and the conveyor plate synchronously drive the processing sheet to move.
5. The automatic seam correction device for a sewing machine according to claim 1, characterized in that, An anti-rolling pressure plate is provided on the side of the sensing component near the sewing machine, and the processing sheet is disposed between the anti-rolling pressure plate and the conveyor plate.
6. The automatic seam correction device for a sewing machine according to claim 1, characterized in that, The movable clamp is hinged to the vertical plate, and the movable clamp includes a bend, which is connected to a tension member, which is hinged to the mounting plate.
7. The automatic seam correction device for a sewing machine according to claim 1, characterized in that, The clamp adjustment assembly includes a fixed bracket, a mounting plate slidably connected to the fixed bracket, an adjustment pulley on the fixed bracket, the adjustment pulley including a timing belt, a connecting block on the timing belt, and the connecting block fixedly connected to the mounting plate.
8. An automatic seam correction device for a sewing machine according to any one of claims 1-7, characterized in that, The central correction component includes an avoidance sliding group, the movement direction of which is intersecting with the movement direction of the conveyor plate.
9. An automatic seam correction device for a sewing machine according to any one of claims 1-7, characterized in that, The conveyor plate includes a central conveying area, the central correction component moves on the central conveying area, and clearance grooves are provided at both ends of the central conveying area.