A cloth laying machine capable of self-adapting cloth laying pressure

Abstract

This invention provides an adaptively adjustable fabric spreading machine, comprising a worktable, a controller, a spreading mechanism, a pressing mechanism, and a fabric thickness measurement module. The pressing mechanism includes a pressing unit and a spreading unit. The pressing unit applies pressure to the ends of the fabric, and the spreading unit adjusts the range of pressure applied to the ends of the fabric. The fabric thickness measurement module measures the fabric thickness data in real time. The controller dynamically adjusts the pressure applied by the pressing unit to the ends of the fabric based on the acquired thickness data, and determines in real time whether the thickness data exceeds a preset fabric thickness threshold. If so, it controls the spreading unit to start, expanding the pressing range of the pressing unit as the spreading mechanism retracts from its initial position. According to this invention, the problem of existing fabric spreading machines being unable to adaptively adjust the magnitude and range of pressure applied to the fabric according to the fabric spreading thickness can be solved.

Description

Technical Field

[0001] This invention belongs to the field of fabric laying machine technology, and more specifically, relates to a fabric laying machine that adaptively adjusts the pressing force. Background Technology

[0002] Fabric spreading machines are one of the main production equipment in garment manufacturing. Through automatic reciprocating fabric spreading and quantitative cutting, they flatten and layer rolls of fabric, aligning and stacking them one by one. The spreading process of existing fabric spreading machines is achieved by the cooperation of a spreading mechanism and a pressing mechanism. The spreading mechanism clamps the end of the fabric and conveys it to the pressing mechanism, where they complete the handover. The pressing mechanism then applies pressure to the end of the fabric to fix it in place. Subsequently, the spreading mechanism releases the fabric and returns to its initial position before clamping the fabric again and cutting it. During this process, the pressing mechanism maintains pressure on the fabric until the next handover operation with the spreading mechanism.

[0003] However, because the pressing mechanism in existing fabric laying machines can only apply constant pressure to the fabric, the pressing and fixing effect of the pressing mechanism on the fabric gradually decreases as the fabric thickness increases. The lower the layer of fabric, the lower the pressure. When accidental contact or pulling occurs, the laid fabric is prone to tilting. In addition, because the pressing mechanism of existing fabric laying machines also has a fixed pressure range, only the area near the edge of the fabric receives pressure, resulting in a small force-bearing area. As the fabric thickness increases, the bottom layer of fabric may slide in the opposite direction during the pressing process, further weakening the pressing and fixing effect on the fabric and affecting the laying efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing fabric laying machines cannot adaptively adjust the pressure applied to the fabric and the range of pressure as the fabric is laid, which gradually weakens the compressive effect on the fabric and causes the fabric to tilt.

[0005] To achieve the above objectives, the present invention provides a fabric spreading machine that adaptively adjusts the pressing force, including a worktable, a controller, a fabric spreading mechanism, a fabric pressing mechanism, and a fabric thickness measurement module;

[0006] The fabric spreading mechanism and the fabric pressing mechanism are respectively arranged opposite to each other on both sides of the workbench;

[0007] The spreading mechanism is used to drive the end of the fabric to slide toward the pressing mechanism, and after the pressing mechanism fixes the end of the fabric, it retracts to the initial position to spread the fabric.

[0008] The pressing mechanism includes a pressing unit and a spreading unit. The pressing unit is used to apply pressure to the end of the fabric, and the spreading unit is used to adjust the range of pressure applied to the end of the fabric.

[0009] The fabric thickness measurement module is set on the workbench and is used to measure the thickness data value of the fabric spread out on the workbench in real time.

[0010] The controller is used to dynamically adjust the pressure applied by the pressure unit to the end of the fabric according to the acquired thickness data value, and to determine in real time whether the thickness data value exceeds the preset fabric thickness threshold. If so, the controller controls the expansion unit to start, thereby expanding the pressure range of the pressure unit when the fabric spreading mechanism retracts to the initial position.

[0011] Optionally, the spreading mechanism includes a sliding spreading base, a hopper and a plurality of fabric conveying rollers disposed on the sliding spreading base, and a clamping assembly and a cutting assembly disposed on the side of the sliding spreading base facing the pressing mechanism.

[0012] The sliding spreading base is arranged along the width direction of the worktable and can slide along the length direction of the worktable;

[0013] The plurality of feed rollers are used to guide the fabric in the hopper into the clamping assembly;

[0014] The clamping assembly is used to secure the edges of the fabric;

[0015] The cutting component is disposed on the clamping component and is used to cooperate with the clamping component to cut the fabric in the width direction when the fabric is unfolded to a predetermined length.

[0016] Optionally, the clamping assembly includes a clamping assembly body, a first sliding lifting block, and a second sliding lifting block;

[0017] The clamping assembly body is arranged along the width direction of the workbench. The first sliding lifting block and the second sliding lifting block are respectively connected to the two ends of the clamping assembly body. The first sliding lifting block and the second sliding lifting block are configured to slide up and down along the side of the sliding fabric spreading base facing the fabric pressing mechanism.

[0018] The cutting assembly is disposed above the main body of the clamping assembly. The cutting assembly includes a slide rod and a cutting blade. The two ends of the slide rod are respectively connected to the first sliding lifting block and the second sliding lifting block, and the cutting blade is slidably connected to the slide rod.

[0019] Optionally, the pressure application unit includes a pressure cloth body, a first lifting assembly, and a second lifting assembly;

[0020] The pressing body is arranged along the width direction of the workbench;

[0021] The first lifting component and the second lifting component are respectively connected to both ends of the pressing body, and are used to drive the pressing body to move in the vertical direction.

[0022] Optionally, the pressing body includes a rectangular frame consisting of a pressing rod, a first support rod, a second support rod, and a connecting rod;

[0023] The pressing rod is arranged opposite to the connecting rod, and the first support rod is arranged opposite to the second support rod;

[0024] The pressing rod has multiple sets of fixed pressing teeth arranged on its pressing side, extending toward the spreading mechanism. Each set of fixed pressing teeth has movable tooth positions reserved on both sides.

[0025] The two ends of the connecting rod extend beyond the first support rod and the second support rod, respectively.

[0026] Optionally, the first lifting assembly includes a first support and a first hydraulic telescopic rod. The first support has a vertical first receiving groove that matches the first hydraulic telescopic rod. A first hoisting frame is provided at the top of the first support corresponding to the first receiving groove. The fixed end of the first hydraulic telescopic rod is connected to the first hoisting frame, and the telescopic end of the first hydraulic telescopic rod is connected to one end of the connecting rod.

[0027] The second lifting assembly includes a second support and a second hydraulic telescopic rod. The second support has a vertical second receiving groove that matches the second hydraulic telescopic rod. A second hoisting frame is provided at the top of the second support corresponding to the second receiving groove. The fixed end of the second hydraulic telescopic rod is connected to the second hoisting frame, and the telescopic end of the second hydraulic telescopic rod is connected to the other end of the connecting rod.

[0028] Optionally, the diffuser unit includes a translation rod, a push-pull rod, movable pressure teeth, and a drive assembly;

[0029] The translation rod is disposed between the first support rod and the second support rod, and the inner sides of the first support rod and the second support rod are provided with sliding grooves that match the ends of the translation rod;

[0030] The movable pressure tooth is connected to the translation rod via a push-pull rod, the movable pressure tooth is located at the movable pressure tooth position, and the push-pull rod passes through the pressure rod;

[0031] The driving component is disposed between the translation rod and the connecting rod, and is used to drive the translation rod to slide along the sliding groove;

[0032] In the initial state, the movable pressure tooth is flush with the fixed pressure tooth.

[0033] Alternatively, the drive assembly includes a screw, a screw bearing, and an internal rotor motor;

[0034] The inner rotor motor is located on the side of the connecting rod away from the translation rod. The inner rotor motor has a mounting cavity in the middle. A threaded sleeve that matches the screw is fixed on one side of the inner rotor motor at a position corresponding to the mounting cavity.

[0035] One end of the screw passes through the threaded sleeve into the mounting cavity and is rotatably connected to the translation rod through the screw bearing.

[0036] Optionally, a pressure sensor is provided on the bottom surface of the fixed pressure tooth.

[0037] Optionally, the fabric thickness measurement module includes a light emitting part and a light receiving part arranged opposite to each other;

[0038] The workbench is symmetrically provided with a first support seat and a second support seat extending outward on both sides.

[0039] The light emitting part is disposed on the first support, and the light receiving part is mounted on the second support. The distance between the light emitting part and the light receiving part is greater than the width of the spreading mechanism.

[0040] The beneficial effects of this invention are as follows:

[0041] The adaptive pressure adjustment fabric spreading machine of the present invention achieves adaptive adjustment of the pressure on the fabric through the cooperation between the controller, the spreading mechanism, the pressure application unit, the expansion unit, and the fabric thickness measurement module. The fabric thickness measurement module measures the thickness data value of the fabric spread on the worktable in real time. The controller dynamically adjusts the pressure applied by the pressure application unit to the end of the fabric based on the acquired thickness data value, and judges in real time whether the thickness data value exceeds the preset fabric thickness threshold. If so, the expansion unit is activated, and the range of fabric being pressed is adjusted when the spreading mechanism retracts to the initial position.

[0042] The adaptive pressure adjustment fabric laying machine of the present invention can adjust the pressure of the pressure unit on the fabric according to the fabric thickness on the worktable. As the fabric thickness increases, the pressure applied to the fabric gradually increases, which strengthens the fixing effect of the fabric, prevents the fabric from tilting, and when the fabric reaches a certain thickness, the pressure expansion unit expands the pressure range of the fabric, increases the force-bearing area, and further improves the pressing effect of the fabric, so that the fabric laid on the worktable remains neat.

[0043] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0044] The present invention can be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to denote the same or similar parts.

[0045] Figure 1 A schematic diagram of a fabric spreading machine with adaptive adjustment of pressing force according to an embodiment of the present invention is shown;

[0046] Figure 2 A schematic diagram showing the relative positions of the fabric pressing mechanism and the fabric thickness measuring module according to an embodiment of the present invention is provided.

[0047] Figure 3 A schematic diagram of the structure of the pressing body and the spreading unit in the initial state according to an embodiment of the present invention is shown;

[0048] Figure 4 A schematic diagram of the structure of the pressing body and the expansion unit according to an embodiment of the present invention is shown in another state. Detailed Implementation

[0049] To enable those skilled in the art to more fully understand the technical solutions of the present invention, exemplary embodiments of the present invention will be described more comprehensively and in detail below with reference to the accompanying drawings. Obviously, the one or more embodiments of the present invention described below are merely one or more specific ways to implement the technical solutions of the present invention, and are not exhaustive. It should be understood that other ways belonging to a general inventive concept can be used to implement the technical solutions of the present invention, and should not be limited to the embodiments described exemplary. Based on one or more embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0050] Example: Figure 1 A schematic diagram of a fabric spreading machine that adaptively adjusts the pressing force according to an embodiment of the present invention is shown.

[0051] Reference Figure 1 The adaptive pressure adjustment fabric laying machine of this invention includes a worktable 100, a controller, a fabric spreading mechanism 200, a fabric pressing mechanism 300, and a fabric thickness measurement module 400.

[0052] The spreading mechanism 200 and the pressing mechanism 300 are respectively arranged on both sides of the workbench 100;

[0053] The spreading mechanism 200 is used to drive the end of the fabric to slide towards the pressing mechanism 300, and after the pressing mechanism 300 fixes the end of the fabric, it retracts to the initial position to spread the fabric.

[0054] The fabric pressing mechanism 300 includes a pressing unit 500 and a spreading unit 600. The pressing unit 500 is used to apply pressure to the end of the fabric, and the spreading unit 600 is used to adjust the range of pressure applied to the end of the fabric.

[0055] The fabric thickness measurement module 400 is set on the worktable 100 and is used to measure the thickness data of the fabric unfolded on the worktable 100 in real time.

[0056] The controller is used to dynamically adjust the pressure applied by the pressure unit 500 to the end of the fabric based on the acquired thickness data value, and to determine in real time whether the thickness data value exceeds the preset fabric thickness threshold. If so, the controller controls the expansion unit 600 to start, thereby expanding the pressure range of the pressure unit 500 when the spreading mechanism 200 retracts to the initial position.

[0057] Specifically, in this embodiment of the invention, the initial position of the spreading mechanism 200 is set according to the required length of fabric to be spread, so that when the spreading mechanism 200 returns to the initial position, the fabric is spread to the required length.

[0058] Furthermore, in this embodiment of the invention, the spreading mechanism 200 includes a sliding spreading base 210, a hopper 220 disposed on the sliding spreading base 210 and a plurality of conveying rollers 230, as well as a clamping assembly 240 and a cutting assembly 250 disposed on the side of the sliding spreading base 210 facing the pressing mechanism 300.

[0059] The sliding spreading base 210 is arranged along the width direction of the worktable 100 and can slide along the length direction of the worktable 100;

[0060] Multiple feed rollers 230 are used to guide the fabric in the hopper 220 into the clamping assembly 240;

[0061] Clamping assembly 240 is used to secure the edges of the fabric;

[0062] The cutting component 250 is disposed on the clamping component 240 and is used to cooperate with the clamping component 240 to cut the fabric in the width direction when the fabric is unfolded to a predetermined length.

[0063] Specifically, in this embodiment of the invention, multiple fabric conveying rollers 230 are arranged in a staggered manner. The target fabric is rolled up and placed into the hopper 220, and then unfolded and conveyed to the clamping assembly 240 by the guidance of the fabric conveying rollers 230.

[0064] Furthermore, in this embodiment of the invention, the clamping component 240 includes a clamping component body, a first sliding lifting block 241, and a second sliding lifting block 242;

[0065] The main body of the clamping assembly is arranged along the width direction of the workbench 100. The first sliding lifting block 241 and the second sliding lifting block 242 are respectively connected to the two ends of the main body of the clamping assembly. The first sliding lifting block 241 and the second sliding lifting block 242 are configured to slide up and down along the side of the sliding fabric spreading base 210 facing the fabric pressing mechanism 300.

[0066] The cutting component 250 is disposed above the main body of the clamping component. The cutting component 250 includes a slide rod 251 and a cutting blade 252. The two ends of the slide rod 251 are respectively connected to the first sliding lifting block 241 and the second sliding lifting block 242. The cutting blade 252 is slidably connected to the slide rod 251.

[0067] Specifically, in this embodiment of the invention, the clamping assembly body includes a pressing rod 243 and a support plate 244. A plurality of pressing teeth 245 extending toward the pressing mechanism 300 are arranged on one side of the pressing rod 243. The end of the fabric conveyed by the fabric conveying roller 230 is located between the pressing teeth 245 and the support plate 244. The pressing rod 243 and the support plate 244 synchronously follow the first sliding lifting block 241 and the second sliding lifting block 242 to slide up and down to adapt to different fabric thicknesses. The pressing rod 243 can move up and down relative to the first sliding lifting block 241 and the second sliding lifting block 242 to achieve clamping and releasing of the end of the fabric.

[0068] Specifically, in this embodiment of the invention, after the fabric spreading mechanism 200 and the fabric pressing mechanism 300 complete a fabric transfer and return to the initial position, the controller controls the cutting blade 252 to slide along the slide bar 251 to cut the fabric and complete the spreading.

[0069] Figure 2 A schematic diagram showing the relative positions of the fabric pressing mechanism and the fabric thickness measuring module according to an embodiment of the present invention is provided. Figure 3 A schematic diagram of the pressing body and the spreading unit in their initial state according to an embodiment of the present invention is shown. Figure 4 A schematic diagram of the structure of the pressing body and the expansion unit according to an embodiment of the present invention is shown in another state.

[0070] Reference Figures 2-4 Furthermore, in this embodiment of the invention, the pressure unit 500 includes a pressure cloth body 510, a first lifting component 520, and a second lifting component 530.

[0071] The main body 510 for pressing the fabric is arranged along the width of the workbench 100;

[0072] The first lifting component 520 and the second lifting component 530 are respectively connected to both ends of the pressing body 510, and are used to drive the pressing body 510 to move in the vertical direction.

[0073] Furthermore, in this embodiment of the invention, the pressing body 510 includes a rectangular frame composed of a pressing rod 511, a first support rod 512, a second support rod 513, and a connecting rod 514.

[0074] The pressing rod 511 is arranged opposite to the connecting rod 514, and the first support rod 512 is arranged opposite to the second support rod 513;

[0075] The pressing side of the pressing rod 511 is provided with multiple sets of fixed pressing teeth 515 extending toward the spreading mechanism 200, and each set of fixed pressing teeth 515 has movable tooth positions reserved on both sides.

[0076] The two ends of the connecting rod 514 extend beyond the first support rod 512 and the second support rod 513, respectively.

[0077] Specifically, in this embodiment of the invention, during the pressing process, the pressing body 510 contacts the fabric through the fixed pressing teeth 515.

[0078] Furthermore, in this embodiment of the invention, the first lifting assembly 520 includes a first support 521 and a first hydraulic telescopic rod 522. The first support 521 has a vertical first receiving groove that matches the first hydraulic telescopic rod 522. The top of the first support 521 is provided with a first hoisting frame 523 corresponding to the first receiving groove. The fixed end of the first hydraulic telescopic rod 522 is connected to the first hoisting frame 523, and the telescopic end of the first hydraulic telescopic rod 522 is connected to one end of the connecting rod 514.

[0079] The second lifting assembly 530 includes a second support 531 and a second hydraulic telescopic rod 532. The second support 531 has a vertical second receiving groove 533 that matches the second hydraulic telescopic rod 532. A second hoisting frame 534 is provided at the top of the second support 531 corresponding to the second receiving groove 533. The fixed end of the second hydraulic telescopic rod 532 is connected to the second hoisting frame 534, and the telescopic end of the second hydraulic telescopic rod 532 is connected to the other end of the connecting rod 514.

[0080] Specifically, in this embodiment of the invention, the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 synchronously drive the pressing body 510 to rise or fall so as to complete the handover with the spreading mechanism 200 and apply pressure to the fabric. Both the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 are connected to the controller.

[0081] When the spreading mechanism 200 slides along the worktable 100 to the point where it meets the fabric of the pressing mechanism 300, the controller controls the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 to retract synchronously, causing the pressing body 510 to rise and complete the handover of the fabric with the clamping assembly 240. Subsequently, the controller controls the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 to extend synchronously, causing the pressing body 510 to descend a certain distance to apply reasonable pressure to the end of the fabric. At the same time, the spreading mechanism 200 begins to retract to the initial position. The controller adjusts the extension range of the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 according to the change in the thickness data value fed back by the fabric thickness measurement module, so that the height of the pressing body 510 increases with the increase of the fabric thickness, and the distance of the pressing body 510 descends, i.e., the pressure applied to the fabric, increases with the increase of the fabric thickness, to ensure the pressing effect on the fabric.

[0082] Furthermore, in this embodiment of the invention, the diffuser unit 600 includes a translation rod 610, a push-pull rod 620, a movable pressure tooth 630, and a drive assembly 640;

[0083] The translation rod 610 is disposed between the first support rod 512 and the second support rod 513. The inner sides of the first support rod 512 and the second support rod 513 are provided with sliding grooves 516 that match the ends of the translation rod 610.

[0084] The movable pressure tooth 630 is connected to the translation rod 610 via the push-pull rod 620. The movable pressure tooth 630 is located at the movable pressure tooth 630 position, and the push-pull rod 620 passes through the pressure rod 511.

[0085] The drive assembly 640 is disposed between the translation rod 610 and the connecting rod 514, and is used to drive the translation rod 610 to slide along the sliding groove 516;

[0086] In the initial state, the movable pressure tooth 630 is flush with the fixed pressure tooth 515.

[0087] Furthermore, in this embodiment of the invention, the drive assembly 640 includes a screw 641, a screw bearing 642, and an internal rotor motor 643;

[0088] The inner rotor motor 643 is located on the side of the connecting rod 514 away from the translation rod 610. The inner rotor motor 643 has a mounting cavity located in the middle. A threaded sleeve 644 that matches the screw 641 is fixed on one side of the inner rotor motor 643 corresponding to the position of the mounting cavity.

[0089] One end of the screw 641 passes through the mounting cavity via a threaded sleeve 644 and is rotatably connected to the translation rod 610 via a screw bearing 642.

[0090] Specifically, in the embodiment of the present invention, in the initial state, the movable pressing teeth 630 and the fixed pressing teeth 515 are comb-shaped on one side of the pressing rod 511 and are staggered with the pressing teeth 245 of the spreading mechanism 200 to facilitate the handover of the fabric.

[0091] Specifically, in this embodiment of the invention, the inner rotor motor 643 refers to a drive motor installed inside the motor, including but not limited to a lead screw stepper motor; the screw bearing 642 is a rotating shaft joint, serving as a connecting member between the screw 641 and the translation rod 610, allowing the screw 641 and the translation rod 610 to be rotatably connected. The screw 641 passes through the inner rotor motor 643 and is rotatably connected to the translation rod 610 through the screw bearing 642. The threaded sleeve 644 is sleeved on the screw 641 and fixed to the non-contact side between the inner rotor motor 643 and the connecting rod 514. The inner rotor motor 643 provides power to drive the threaded sleeve 644 to rotate, causing the screw 641 to move linearly along its own axis, thereby pushing the translation rod 610 to move along the sliding groove 516, causing the movable pressure tooth 630 to extend, thus achieving the range where the fabric is pressed down.

[0092] Specifically, in this embodiment of the invention, the inner rotor motor 643 is connected to the controller, and the controller controls the direction and speed of rotation of the inner rotor motor 643, thereby achieving precise control of the movement state of the movable pressure tooth 630. For example, when the fabric spreading mechanism 200 and the fabric pressing mechanism 300 complete a certain fabric transfer and the fabric thickness on the worktable 100 reaches a predetermined value, the controller controls the inner rotor motor 643 to start when the fabric spreading mechanism 200 retracts to the initial position, driving the threaded sleeve 644 to rotate clockwise. At this time, the screw 641 moves along the axis towards the translation rod 610, pushing the translation rod 610 to slide along the sliding groove 516, thereby pushing the movable pressure tooth 630 at the end of the push-pull rod 620 to translate towards the fabric spreading mechanism 200, so as to expand the pressure range on the fabric. When the fabric spreading mechanism 200 completes the spreading and slides towards the fabric pressing mechanism 300 again, the controller controls the inner rotor motor 643 to drive the threaded sleeve 644 to rotate counterclockwise, driving the screw 641 to retract axially until the movable pressure tooth 630 is flush with the fixed pressure tooth 515, preventing the movable pressure tooth 630 from affecting the sliding of the fabric spreading mechanism 200.

[0093] Furthermore, in this embodiment of the invention, a pressure sensor is provided on the bottom surface of the fixed pressure tooth 515.

[0094] Specifically, in this embodiment of the invention, the pressure sensor is connected to the controller. By setting the pressure sensor on the bottom surface of the fixed pressure tooth 515, which is the contact surface with the fabric, the pressure value applied to the fabric by the pressing body 510 can be fed back in real time. This is beneficial for monitoring the pressing state and for timely adjusting the parameters of the corresponding commands output by the controller to the pressure unit 500 and the pressure spreading unit 600, so that the pressure applied to the fabric and the pressure range are always within a reasonable range.

[0095] Furthermore, in this embodiment of the invention, the fabric thickness measurement module 400 includes a light emitting part 410 and a light receiving part 420 disposed opposite to each other;

[0096] The workbench 100 has a first support seat 110 and a second support seat 120 that extend outwards symmetrically on both sides.

[0097] The light emitting part 410 is disposed on the first support 110, and the light receiving part 420 is mounted on the second support 120. The distance between the light emitting part 410 and the light receiving part 420 is greater than the width of the spreading mechanism 200.

[0098] Specifically, in this embodiment of the invention, a first cross brace 130 and a second cross brace are respectively provided on both sides of the workbench 100 along the length direction. The first cross brace 130 and the second cross brace are located below the table surface of the workbench 100. The first support seat 110 and the second support seat 120 are both "L"-shaped supports. The first support seat 110 is provided on the first cross brace 130, and the second support seat 120 is provided on the second cross brace. By providing the first support seat 110 and the second support seat 120, the light emitting part 410 and the light receiving part 420 can measure the fabric thickness data without hindering the sliding of the fabric spreading mechanism 200 on the workbench 100.

[0099] Specifically, in this embodiment of the invention, the fabric thickness measurement module 400 is a through-beam grating light curtain.

[0100] Specifically, in this embodiment of the invention, the light emitting unit 410 generates a pipeline array at fixed intervals along the length direction and emits it to the light receiving unit 420, which receives the light and forms a light curtain between the light emitting unit 410 and the light receiving unit 420. The fabric to be tested is placed between the light emitting unit 410 and the light receiving unit 420. The light receiving unit 420 is connected to a controller, and the thickness data of the fabric to be tested is obtained according to the on / off signal state of the light curtain.

[0101] Specifically, the working process of this embodiment of the invention is as follows: the spreading mechanism 200 clamps the end of the fabric and slides it towards the pressing mechanism 300, completing the fabric transfer with the pressing mechanism 300. The pressing mechanism 300 then presses the end of the fabric to secure it. The spreading mechanism 200 releases the fabric and returns to its initial position before cutting the fabric to complete the laying operation. During the laying process, the fabric thickness measurement module 400 measures the thickness data value of the fabric laid on the workbench 100 in real time and feeds this thickness data value back to the controller. Based on this thickness data value, the controller controls the first hydraulic telescopic rod 522 and the second hydraulic telescopic rod 532 to drive the pressing body 510 to adjust the pressure. As the thickness data value increases, the rising and falling amplitude of the pressing body 510 also increases, thereby providing a suitable pressure for the fabric. Appropriate pressure; when the thickness data value reaches the preset fabric thickness threshold, during the process of the spreading mechanism 200 retracting to the initial position, the controller controls the inner rotor motor 643 to start, driving the screw 641 to move towards the translation rod 610, pushing the translation rod 610 to slide along the sliding groove 516, thereby pushing the movable pressure tooth 630 at the end of the push-pull rod 620 to translate towards the spreading mechanism 200, so as to expand the pressure range on the fabric. By increasing the pressure range on the fabric, the pressing effect of the fabric is improved. In the next round of spreading, that is, when the spreading mechanism 200 slides towards the pressing mechanism 300 again, the inner rotor motor 643 drives the screw 641 to move in the opposite direction, driving the movable pressure tooth 630 back to the initial position, preventing it from obstructing the sliding of the spreading mechanism 200 on the worktable 100.

[0102] While one or more embodiments of the present invention have been described above, those skilled in the art will recognize that the present invention can be implemented in any other form without departing from its spirit and scope. Therefore, the embodiments described above are illustrative and not restrictive, and many modifications and substitutions will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A lapper for self-adapting to adjust the pressure of cloth, characterized in that, Includes a workbench, controller, fabric spreading mechanism, fabric pressing mechanism, and fabric thickness measurement module; The fabric spreading mechanism and the fabric pressing mechanism are respectively arranged opposite to each other on both sides of the workbench; The spreading mechanism is used to drive the end of the fabric to slide toward the pressing mechanism, and after the pressing mechanism fixes the end of the fabric, it retracts to the initial position to spread the fabric. The pressing mechanism includes a pressing unit and a spreading unit. The pressing unit is used to apply pressure to the end of the fabric, and the spreading unit is used to adjust the range of pressure applied to the end of the fabric. The fabric thickness measurement module is set on the workbench and is used to measure the thickness data value of the fabric spread out on the workbench in real time. The controller is used to dynamically adjust the pressure applied by the pressure unit to the end of the fabric according to the acquired thickness data value, and to determine in real time whether the thickness data value exceeds the preset fabric thickness threshold. If so, the controller controls the expansion unit to start, thereby expanding the pressure range of the pressure unit when the fabric spreading mechanism retracts to the initial position. The pressure application unit includes a pressure cloth body, a first lifting component, and a second lifting component; The pressing body is arranged along the width direction of the workbench; The first lifting component and the second lifting component are respectively connected to both ends of the pressing body, and are used to drive the pressing body to move in the vertical direction; The pressing body includes a rectangular frame composed of a pressing rod, a first support rod, a second support rod, and a connecting rod; The pressing rod is arranged opposite to the connecting rod, and the first support rod is arranged opposite to the second support rod; The pressing rod has multiple sets of fixed pressing teeth arranged on its pressing side, extending toward the spreading mechanism. Each set of fixed pressing teeth has movable tooth positions reserved on both sides. The two ends of the connecting rod extend beyond the first support rod and the second support rod, respectively; The diffuser unit includes a translation rod, a push-pull rod, movable pressure teeth, and a drive assembly; The translation rod is disposed between the first support rod and the second support rod, and the inner sides of the first support rod and the second support rod are provided with sliding grooves that match the ends of the translation rod; The movable pressure tooth is connected to the translation rod via a push-pull rod, the movable pressure tooth is located at the movable pressure tooth position, and the push-pull rod passes through the pressure rod; The driving component is disposed between the translation rod and the connecting rod, and is used to drive the translation rod to slide along the sliding groove; In the initial state, the movable pressing tooth is flush with the fixed pressing tooth; The drive assembly includes a screw, a screw bearing, and an internal rotor motor; The inner rotor motor is located on the side of the connecting rod away from the translation rod. The inner rotor motor has a mounting cavity in the middle. A threaded sleeve that matches the screw is fixed on one side of the inner rotor motor at a position corresponding to the mounting cavity. One end of the screw passes through the threaded sleeve into the mounting cavity and is rotatably connected to the translation rod through the screw bearing.

2. The lapper of claim 1, wherein The fabric spreading mechanism includes a sliding fabric spreading base, a hopper and multiple fabric conveying rollers disposed on the sliding fabric spreading base, and a clamping assembly and a cutting assembly disposed on the side of the sliding fabric spreading base facing the fabric pressing mechanism. The sliding spreading base is arranged along the width direction of the worktable and can slide along the length direction of the worktable; The plurality of feed rollers are used to guide the fabric in the hopper into the clamping assembly; The clamping assembly is used to secure the edges of the fabric; The cutting component is disposed on the clamping component and is used to cooperate with the clamping component to cut the fabric in the width direction when the fabric is unfolded to a predetermined length.

3. The fabric layering machine of claim 2, wherein, The clamping assembly includes a clamping assembly body, a first sliding lifting block, and a second sliding lifting block; The clamping assembly body is arranged along the width direction of the workbench. The first sliding lifting block and the second sliding lifting block are respectively connected to the two ends of the clamping assembly body. The first sliding lifting block and the second sliding lifting block are configured to slide up and down along the side of the sliding fabric spreading base facing the fabric pressing mechanism. The cutting assembly is disposed above the main body of the clamping assembly. The cutting assembly includes a slide rod and a cutting blade. The two ends of the slide rod are respectively connected to the first sliding lifting block and the second sliding lifting block, and the cutting blade is slidably connected to the slide rod.

4. The fabric layering machine of claim 1, wherein, The first lifting assembly includes a first support and a first hydraulic telescopic rod. The first support has a vertical first receiving groove that matches the first hydraulic telescopic rod. A first hoisting frame is provided at the top of the first support corresponding to the first receiving groove. The fixed end of the first hydraulic telescopic rod is connected to the first hoisting frame, and the telescopic end of the first hydraulic telescopic rod is connected to one end of the connecting rod. The second lifting assembly includes a second support and a second hydraulic telescopic rod. The second support has a vertical second receiving groove that matches the second hydraulic telescopic rod. A second hoisting frame is provided at the top of the second support corresponding to the second receiving groove. The fixed end of the second hydraulic telescopic rod is connected to the second hoisting frame, and the telescopic end of the second hydraulic telescopic rod is connected to the other end of the connecting rod.

5. The fabric layering machine of claim 1, wherein, A pressure sensor is installed on the bottom surface of the fixed pressure tooth.

6. The fabric layering machine of claim 1, wherein, The fabric thickness measurement module includes a light emitting part and a light receiving part arranged opposite to each other; The workbench is symmetrically provided with a first support seat and a second support seat extending outward on both sides. The light emitting part is disposed on the first support, and the light receiving part is mounted on the second support. The distance between the light emitting part and the light receiving part is greater than the width of the spreading mechanism.

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