A cloth laying machine based on exhaust wrinkle removing principle

Abstract

The application provides a cloth laying machine based on air exhaust wrinkle removal principle. The cloth laying machine comprises a cloth conveying roller mechanism, a cloth spreading mechanism and an air exhaust wrinkle removal mechanism. The cloth conveying roller mechanism is used for leading the front end of the roll-shaped cloth contained in the hopper into the cloth spreading mechanism. The cloth spreading mechanism is used for driving the front end of the cloth introduced into the cloth spreading mechanism to slide to the cloth pressing mechanism to realize cloth feeding, and returning to the initial position after the front end of the cloth is pressed by the cloth pressing mechanism to realize cloth spreading. The air exhaust wrinkle removal mechanism is used for trailing the cloth spreading mechanism to slide on the workbench during the non-first cloth spreading process of the cloth spreading mechanism, and discharging the air remaining between the cloth spread this time and the cloth spread last time by applying contact pressure to the cloth spread this time and spraying gas from above to the cloth spread this time during the sliding process. According to the application, the problem that the existing cloth laying machine is prone to the situation that air remains between the cloth spread this time and the cloth spread last time, and thus leads to poor cloth laying quality of the cloth laying machine can be solved.

Description

Technical Field

[0001] This invention belongs to the field of fabric spreading machines, and more specifically, relates to a fabric spreading machine based on the principle of exhaust and wrinkle removal. Background Technology

[0002] Existing fabric spreading machines mainly consist of a spreading mechanism located near the worktable, a pressing mechanism located at the far end of the worktable, and a cutting mechanism slidably positioned relative to the spreading mechanism. The fabric spreading operation is primarily achieved through the combined action of these three mechanisms. Specifically, a complete fabric spreading operation typically includes three stages: feeding, spreading, and cutting. The feeding stage involves the spreading mechanism, which holds the front end of the fabric, sliding from its initial position toward the pressing mechanism. Upon reaching the fabric junction, the spreading mechanism releases the front end of the fabric, which is then fixed by the pressing mechanism through downward pressure. The spreading stage involves the spreading mechanism maintaining the released fabric and sliding back to its initial position after the front end is fixed by the pressing mechanism. The cutting stage involves the spreading mechanism clamping the fabric after the spreading stage, followed by the cutting mechanism sliding relative to the spreading mechanism to achieve a linear cut of the spread fabric. In actual fabric laying operations, the fabric laying machine lays the fabric layer by layer by performing multiple laying operations, thereby preparing for the next step of fabric cutting according to the pattern.

[0003] However, during fabric spreading operations using existing fabric spreading machines, especially in subsequent spreading processes, air pockets often remain between the fabric being spread and the previously spread fabric. This is particularly problematic when the fabric has poor air permeability. These air pockets cause wrinkles in the newly spread fabric, leading to uneven, loose, and loose spreading, thus affecting the overall quality of the spreading operation and the cutting quality of the fabric according to the pattern. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing fabric spreading machines often have air gaps between the fabric being spread and the fabric that was spread previously, resulting in poor fabric spreading quality.

[0005] To achieve the above objectives, the present invention provides a fabric spreading machine based on the principle of exhaust and wrinkle removal. The fabric spreading machine includes a worktable, a hopper, a fabric conveying roller mechanism, a fabric spreading mechanism, a fabric pressing mechanism, and an exhaust and wrinkle removal mechanism.

[0006] Both the spreading mechanism and the pressing mechanism are mounted on the worktable, and the spreading mechanism is configured to slide between its initial position and the pressing mechanism.

[0007] Both the hopper and the fabric conveying roller mechanism are mounted on the fabric spreading mechanism. The fabric conveying roller mechanism is used to introduce the front end of the roll of fabric contained in the hopper into the fabric spreading mechanism.

[0008] The spreading mechanism is used to drive the front end of the fabric introduced therein to slide towards the pressing mechanism to achieve fabric feeding, and after the front end of the fabric is pressed by the pressing mechanism, it returns to the initial position to achieve spreading.

[0009] The air exhaust and wrinkle removal mechanism is used to slide behind the fabric being unfolded on the worktable during the non-first unfolding process of the fabric unfolding mechanism, and during the sliding process, it exhausts the air remaining between the fabric being unfolded this time and the fabric being unfolded last time by applying contact pressure to the fabric being unfolded this time and by spraying gas from above onto the fabric being unfolded this time.

[0010] Optionally, the fabric spreading mechanism includes a fabric pressing assembly for clamping the front end of the fabric extending from the rear during the fabric feeding process, releasing the fabric during the spreading process, and clamping the fabric after one spreading operation and before the spread fabric is cut.

[0011] Optionally, the spreading mechanism further includes a spreading mechanism body, which is divided into a first sliding base and a second sliding base arranged opposite to each other, and a top plate supported by both.

[0012] A first slide rail is provided on the first side of the workbench, and the first sliding base can slide on the first side of the workbench based on the first slide rail;

[0013] A second slide rail is provided on the second side of the worktable, and the second sliding base can slide on the second side of the worktable based on the second slide rail;

[0014] The pressing assembly includes a pressing assembly body, a first electrically controlled slider, and a second electrically controlled slider.

[0015] Both the first sliding base and the second sliding base have a front end face facing the fabric pressing mechanism. The first electrically controlled slider is configured to slide up and down on the front end face of the first sliding base, and the second electrically controlled slider is configured to slide up and down on the front end face of the second sliding base.

[0016] The two ends of the main body of the pressing assembly are respectively connected to the first electrically controlled slider and the second electrically controlled slider, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism.

[0017] Optionally, the fabric spreading machine further includes a fabric cutting mechanism, which includes a slide bar and a cutting blade;

[0018] The two ends of the slide bar are respectively connected to the first electrically controlled slider and the second electrically controlled slider, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the fabric spreading mechanism and located above the main body of the fabric pressing assembly.

[0019] The cutting blade is configured to slide on the slide bar to cut the unfolded fabric.

[0020] Optionally, the exhaust wrinkle removal mechanism includes an exhaust wrinkle removal mechanism body, a first drive structure, and a second drive structure;

[0021] The first driving structure has the same structure as the second driving structure. The first driving structure includes a third electrically controlled slider, a first electrically controlled rotating shaft, and a robotic arm.

[0022] The third electrically controlled slider is configured to slide on the first slide rail, and the first electrically controlled rotating shaft is vertically disposed on the side of the third electrically controlled slider facing the second side.

[0023] The robotic arm is connected to the first electrically controlled rotating shaft at its first end, so that it is located outside the worktable and parallel to the first side.

[0024] The second drive structure is disposed on the second slide rail and is arranged in a mirror image of the first drive structure in a horizontal direction perpendicular to the sliding direction of the spreading mechanism;

[0025] The main body of the air-venting and wrinkle-removing mechanism is connected to the second end of the mechanical arm of the first drive structure and the second end of the mechanical arm of the second drive structure, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism.

[0026] Optionally, the main body of the exhaust wrinkle removal mechanism includes an air jet rod and an exhaust plate;

[0027] The two ends of the jet rod are respectively connected to the second end of the mechanical arm of the first drive structure and the second end of the mechanical arm of the second drive structure.

[0028] Inside the jet rod, a main air passage is formed along its extension direction, and a plurality of secondary air passages are connected to the main air passage. The first end of the main air passage is closed and its second end is used to connect to an external air source. The secondary air passages are straight passages and their inlets are higher than their outlets. The outlets of the plurality of secondary air passages are distributed along the extension direction of the jet rod in the lower middle part of the side of the jet rod opposite to the spreading mechanism.

[0029] The exhaust plate is disposed on the bottom surface of the jet rod along the extension direction of the jet rod, and the lower edge of the exhaust plate is closer to the unfolding mechanism than its upper edge. The exhaust plate applies contact pressure to the unfolded fabric through its lower edge.

[0030] Optionally, the robotic arm of the first drive structure includes a first arm segment, a second arm segment, and a second electrically controlled rotating shaft. The first arm segment and the second arm segment are hinged together by the second electrically controlled rotating shaft to form a V-shaped structure. The free end of the first arm segment is connected to the first electrically controlled rotating shaft, and the free end of the second arm segment is connected to the first end of the jet rod.

[0031] The second boom section is implemented using an electrically controlled telescopic boom.

[0032] Optionally, the first driving structure may further include a limiting slider and a limiting baffle;

[0033] The limiting slider is disposed on the jet rod and near its first end, and is configured to slide on the jet rod;

[0034] The limiting baffle is connected to the limiting slider and is used to limit the corresponding edge of the fabric.

[0035] Optionally, the pressing mechanism includes a pressing mechanism body, a first support, and a second support;

[0036] The first support and the second support are disposed opposite to each other on the workbench and are respectively close to its first side and second side;

[0037] The two ends of the main body of the pressing mechanism are respectively slidably matched with the first support and the second support to achieve its own position adjustment in the vertical direction.

[0038] Optionally, the main body of the pressing mechanism includes a pressing frame and a fourth electrically controlled slider and a fifth electrically controlled slider respectively disposed at both ends of the pressing frame;

[0039] A first slide rail matching the fourth electrically controlled slider is provided on the first support, and a second slide rail matching the fifth electrically controlled slider is provided on the second support.

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

[0041] The fabric spreading machine based on the principle of exhaust and wrinkle removal of the present invention is provided with an exhaust and wrinkle removal mechanism. The exhaust and wrinkle removal mechanism is used to slide behind the spreading mechanism on the worktable during the non-first spreading process. During the sliding process, the air left between the fabric being spread and the fabric being spread last time is discharged by applying contact pressure to the fabric being spread this time and by spraying gas from above onto the fabric being spread this time.

[0042] As can be seen from the above, the fabric spreading machine based on the principle of air degassing and wrinkle removal of the present invention can expel the air left between the fabric being spread this time and the fabric that was spread last time during non-first spreading processes. This improves the situation where the fabric being spread this time is wrinkled due to the air left underneath, thereby correspondingly improving the uniformity, flatness and tightness of the fabric spreading. This effectively solves the problem that existing fabric spreading machines are prone to having air left between the fabric being spread this time and the fabric that was spread last time, resulting in poor fabric spreading quality.

[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 based on the principle of exhaust de-wrinkling is shown according to an embodiment of the present invention;

[0046] Figure 2 It shows Figure 1 Enlarged view of region A in the middle;

[0047] Figure 3 A schematic diagram showing the relative positions of the air-venting and wrinkle-removing mechanism, the worktable, and the fabric pressing mechanism according to an embodiment of the present invention is provided.

[0048] Figure 4 A schematic diagram showing the relative positions of the main body of the air-venting and wrinkle-removing mechanism and the robotic arm according to an embodiment of the present invention is provided. 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 1A schematic diagram of the fabric spreading machine based on the principle of exhaust wrinkle removal according to an embodiment of the present invention is shown. Figure 2 It shows Figure 1 Enlarged view of region A in the middle. Figure 3 A schematic diagram showing the relative positions of the air-venting and wrinkle-removing mechanism, the worktable, and the fabric pressing mechanism according to an embodiment of the present invention is provided. Figure 4 A schematic diagram showing the relative positions of the main body of the air-venting and wrinkle-removing mechanism and the robotic arm according to an embodiment of the present invention is shown.

[0051] Reference Figures 1-4 The fabric spreading machine based on the principle of exhaust and wrinkle removal in this embodiment of the invention includes a worktable 100, a hopper 200, a fabric conveying roller mechanism 300, a fabric spreading mechanism 400, a fabric pressing mechanism 500, and an exhaust and wrinkle removal mechanism 600.

[0052] Both the spreading mechanism 400 and the pressing mechanism 500 are mounted on the worktable 100, and the spreading mechanism 400 is configured to slide between its initial position and the pressing mechanism 500.

[0053] Both the hopper 200 and the fabric conveying roller mechanism 300 are mounted on the fabric spreading mechanism 400. The fabric conveying roller mechanism 300 is used to introduce the front end of the roll of fabric contained in the hopper 200 into the fabric spreading mechanism 400.

[0054] The spreading mechanism 400 is used to drive the front end of the fabric introduced therein to slide towards the pressing mechanism 500 to achieve fabric feeding, and after the front end of the fabric is pressed by the pressing mechanism 500, it returns to its initial position to achieve spreading.

[0055] The air exhaust and wrinkle removal mechanism 600 is used to slide along the worktable 100 during the non-first-time unfolding process of the unfolding mechanism 400, and during the sliding process, it exhausts the air left between the unfolded fabric and the previously unfolded fabric by applying contact pressure to the unfolded fabric and spraying gas from above onto the unfolded fabric.

[0056] Furthermore, in this embodiment of the invention, the spreading mechanism 400 includes a fabric pressing assembly 410, which is used to clamp the front end of the fabric extending from the rear side during the fabric feeding process, release the fabric during the spreading process, and clamp the fabric after one spreading is completed and before the spread fabric is cut.

[0057] Furthermore, in this embodiment of the invention, the spreading mechanism 400 further includes a spreading mechanism body, which is divided into a first sliding base 420 and a second sliding base 430 arranged opposite to each other, and a top plate 440 supported by both.

[0058] A first slide rail is provided on the first side of the worktable 100, and the first sliding base 420 can slide on the first side of the worktable 100 based on the first slide rail.

[0059] A second slide rail 110 is provided on the second side of the worktable 100, and the second sliding base 430 can slide on the second side of the worktable 100 based on the second slide rail 110.

[0060] The fabric pressing assembly 410 includes a fabric pressing assembly body 411, a first electrically controlled slider 412, and a second electrically controlled slider 413;

[0061] The first sliding base 420 and the second sliding base 430 both have a front end face facing the pressing mechanism 500. The first electrically controlled slider 412 is configured to slide up and down on the front end face of the first sliding base 420, and the second electrically controlled slider 413 is configured to slide up and down on the front end face of the second sliding base 430.

[0062] The two ends of the pressing assembly body 411 are connected to the first electrically controlled slider 412 and the second electrically controlled slider 413 respectively, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism 400.

[0063] Specifically, in this embodiment of the invention, the first electrically controlled slider 412 is configured to slide up and down on the front end surface of the first sliding base 420, and the second electrically controlled slider 413 is configured to slide up and down on the front end surface of the second sliding base 430. That is, the height of the pressing assembly body 411 is adjustable to accommodate the continuously thickening fabric that has been laid.

[0064] Furthermore, the fabric spreading machine based on the principle of exhaust and wrinkle removal in this embodiment of the invention also includes a fabric cutting mechanism 700, which includes a slide bar 710 and a cutting blade 720.

[0065] The two ends of the slide bar 710 are connected to the first electrically controlled slider 412 and the second electrically controlled slider 413 respectively, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the fabric spreading mechanism 400 and located above the main body 411 of the fabric pressing assembly.

[0066] The cutting blade 720 is configured to slide on the slide bar 710 to cut the unfolded fabric.

[0067] Furthermore, in this embodiment of the invention, the exhaust wrinkle removal mechanism 600 includes an exhaust wrinkle removal mechanism body, a first driving structure, and a second driving structure;

[0068] The first drive structure is the same as the second drive structure. The first drive structure includes a third electrically controlled slider 610, a first electrically controlled rotating shaft 620, and a robotic arm 630.

[0069] The third electrically controlled slider 610 is configured to slide on the first slide rail, and the first electrically controlled rotating shaft 620 is vertically disposed on the side of the third electrically controlled slider 610 facing the second side of the worktable 100.

[0070] The robotic arm 630 is connected to the first electrically controlled rotating shaft 620 through its first end, so that it is located outside the worktable 100 and parallel to the first side of the worktable 100.

[0071] The second drive structure is mounted on the second slide rail 110 and is arranged in a mirror image of the first drive structure in a horizontal direction perpendicular to the sliding direction of the spreading mechanism 400.

[0072] The main body of the de-wrinkling mechanism is connected to the second end of the robotic arm 630 of the first drive structure and the second end of the robotic arm of the second drive structure, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism 400.

[0073] Furthermore, in this embodiment of the invention, the main body of the exhaust wrinkle removal mechanism includes an air jet rod 640 and an exhaust plate 650;

[0074] The two ends of the jet rod 640 are respectively connected to the second end of the robotic arm 630 of the first drive structure and the second end of the robotic arm of the second drive structure;

[0075] Inside the jet rod 640, there is a main air passage arranged along its extension direction and multiple secondary air passages connected to the main air passage. The first end of the main air passage is closed and its second end is connected to an external air source through the air guide pipe 641. The secondary air passages are straight passages and their air inlets are higher than their air outlets 642. The air outlets 642 of the multiple secondary air passages are distributed along the extension direction of the jet rod 640 in the lower middle part of the side of the jet rod 640 opposite to the spreading mechanism 400.

[0076] The exhaust plate 650 is disposed on the bottom surface of the jet rod 640 along the extension direction of the jet rod 640. The lower edge of the exhaust plate 650 is closer to the spreading mechanism 400 than its upper edge. The exhaust plate 650 applies contact pressure to the fabric being spread through its lower edge.

[0077] Specifically, in this embodiment of the invention, the exhaust plate 650 is made of silicone or rubber and has a certain degree of flexibility.

[0078] Furthermore, in this embodiment of the invention, the robotic arm 630 of the first drive structure includes a first arm segment 631, a second arm segment 632, and a second electrically controlled rotating shaft 633. The first arm segment 631 and the second arm segment 632 are hinged together by the second electrically controlled rotating shaft 633 to form a V-shaped structure. The free end of the first arm segment 631 is connected to the first electrically controlled rotating shaft 620, and the free end of the second arm segment 632 is connected to the first end of the jet rod 640.

[0079] The second boom section 632 is implemented using a two-section electrically controlled telescopic boom.

[0080] Specifically, in this embodiment of the invention, the second arm section 632 is configured as a double-section electrically controlled telescopic rod, which can accommodate the continuously thickening fabric that has already been laid.

[0081] Furthermore, in this embodiment of the invention, the first driving structure further includes a limiting slider 660 and a limiting baffle 670;

[0082] The limiting slider 660 is disposed on and near the first end of the jet rod 640 and is configured to slide on the jet rod 640;

[0083] The limiting baffle 670 is connected to the limiting slider 660 and is used to limit the corresponding edge of the fabric.

[0084] Specifically, in this embodiment of the invention, limiting baffles parallel to the side of the workbench 100 are respectively provided on both ends of the jet rod 640. The limiting baffles are used to block and limit the edge of the fabric when the laid fabric reaches a certain thickness and the air exhaust and wrinkle removal mechanism 600 slides behind the main body of the fabric spreading mechanism, so as to ensure that the edge of the fabric is neat.

[0085] Furthermore, in this embodiment of the invention, the pressing mechanism 500 includes a pressing mechanism body 510, a first support 520, and a second support 530;

[0086] The first support 520 and the second support 530 are arranged opposite to each other on the workbench 100 and are respectively close to its first side and second side.

[0087] The two ends of the main body 510 of the pressing mechanism are slidably matched with the first support 520 and the second support 530 respectively, so as to realize the position adjustment of itself in the vertical direction.

[0088] Furthermore, in this embodiment of the invention, the main body 510 of the pressing mechanism includes a pressing frame 511 and a fourth electrically controlled slider 512 and a fifth electrically controlled slider respectively disposed at both ends of the pressing frame 511.

[0089] A first slide rail 521 matching the fourth electrically controlled slider 512 is provided on the first support 520, and a second slide rail matching the fifth electrically controlled slider is provided on the second support 530.

[0090] Specifically, in this embodiment of the invention, the fabric conveying roller mechanism 300 is disposed on the top plate 440 of the main body of the fabric spreading mechanism, including a first fabric conveying roller 310, a second fabric conveying roller 320 and a third fabric conveying roller 330 for defining the fabric conveying direction. The second fabric conveying roller 320 is at the lowest position, the third fabric conveying roller 330 is at a higher position than the second fabric conveying roller 320, and the first fabric conveying roller 310 is at a higher position than the third fabric conveying roller 330. The hopper 200 is disposed on the rear side of the main body of the fabric spreading mechanism. After the front end of the roll of fabric contained in the hopper 200 extends out of the hopper 200, it passes around the first fabric conveying roller 310, the second fabric conveying roller 320 and the third fabric conveying roller 330 in sequence, and extends into the rear side of the pressing assembly 410 through the gap between the main body of the fabric spreading mechanism and the pressing assembly 410, and is then clamped by the pressing assembly 410.

[0091] Specifically, in this embodiment of the invention, the pressing assembly 410 includes a pressing assembly body 411, which is inclined in general, with its lower edge closer to the pressing mechanism 500 than its upper edge. The pressing assembly body 411 includes an upper pressing plate and a lower pressing plate, which together form an openable clamping structure. When the clamping structure is open, it is in a released state on the fabric, and when the clamping structure is closed, it is in a clamping state on the fabric. The front end of the fabric extends into the open clamping structure through the rear opening of the open clamping structure and is clamped by the clamping structure after it is closed.

[0092] Furthermore, the fabric spreading machine based on the exhaust wrinkle removal principle in this embodiment of the invention also includes a controller;

[0093] The sliding of the main body of the spreading mechanism on the workbench 100 is controlled by the controller, the opening and closing of the main body of the pressing assembly 411 is controlled by the controller, the sliding of the first electric slider 412 on the first sliding base 420 and the sliding of the second electric slider 413 on the second sliding base 430 are controlled by the controller.

[0094] The sliding of the cutting blade 720 on the slide bar 710 is controlled by the controller;

[0095] The sliding of the third electrically controlled slider 610 on the first slide rail is controlled by the controller; the first electrically controlled rotating shaft 620 and the second electrically controlled rotating shaft 633 are controlled by the controller; the extension and retraction of the second boom 632 are controlled by the controller; and the working state of the external air source is controlled by the controller.

[0096] The lifting or lowering of the fabric pressing frame 511 is controlled by the controller, that is, the fourth and fifth electrically controlled sliders are controlled by the controller.

[0097] Specifically, the specific process of a fabric spreading machine based on the air-venting and wrinkle-removing principle performing a single fabric spreading operation according to this embodiment of the invention is as follows:

[0098] Before fabric feeding: The main body of the fabric spreading mechanism is in the initial position. The front end of the fabric extends into and is held by the main body of the fabric pressing assembly 411 via the rear side. The air venting and wrinkle removal mechanism 600 is close to the main body of the fabric spreading mechanism and is closer to the fabric pressing mechanism 500.

[0099] Fabric feeding process: The main body of the spreading mechanism, which is in the initial position, drives the front end of the fabric held by the main body of the pressing assembly 411 to slide towards the pressing mechanism 500. During the process of the spreading mechanism sliding towards the pressing mechanism 500, the venting and wrinkle removal mechanism 600 slides towards the pressing mechanism 500 synchronously and at the same speed. During the process of the venting and wrinkle removal mechanism 600 sliding towards the pressing mechanism 500, the main body of the venting and wrinkle removal mechanism is lifted under the drive of the first driving structure and the second driving structure so as not to affect the subsequent fabric transfer between the pressing assembly 411 and the pressing mechanism 500.

[0100] When the main body of the pressing assembly 411 slides to the fabric transfer position along with the main body of the spreading mechanism, the main body of the pressing assembly 411 releases the front end of the fabric. At this time, the pressing mechanism 500 first lifts and then presses down to fix the front end of the fabric on the worktable 100 or on the fabric below.

[0101] Fabric spreading process: After the pressing mechanism 500 fixes the front end of the fabric, the main body of the spreading mechanism slides back to the initial position. During the process of the main body of the spreading mechanism sliding back to the initial position, the pressing component 411 remains in the released state. Since the front end of the fabric is fixed at this time, the fabric is gradually spread out during the process of the main body of the spreading mechanism sliding back to the initial position.

[0102] Meanwhile, as the main body of the spreading mechanism slides back to its initial position, the exhaust and wrinkle-removing mechanism 600 slides synchronously and at the same speed. During this process, the main body of the exhaust and wrinkle-removing mechanism moves downward under the action of the first and second drive structures. The lower edge of the exhaust plate 650 is always in contact with the fabric being spread. If this is not the first time spreading, the fabric being spread will be tightly adhered to the fabric that was previously spread below it under the action of the exhaust plate 650, so as to expel the air trapped between them. At the same time, as the exhaust plate 650 moves continuously and is always in contact with the fabric being spread, the jet rod 640 sprays high-pressure gas provided by an external air source at an angle above the fabric being spread, which can also play the role of expelling the air trapped between the fabric being spread and the fabric that was previously spread.

[0103] Fabric cutting process: After the main body of the fabric spreading mechanism returns to the initial position, the main body of the fabric pressing assembly 411 changes from the release state to the clamping state to clamp the fabric. At this time, the cutting blade 720 slides on the slide bar 710 to cut the fabric that has been spread out.

[0104] The fabric spreading machine based on the principle of air exhaust and wrinkle removal in this embodiment of the invention allows the air exhaust and wrinkle removal mechanism to slide along the worktable during the spreading process. During this sliding process, the air exhaust and wrinkle removal mechanism applies contact pressure to the fabric being spread, expelling air trapped between the currently spread and previously spread fabrics. Simultaneously, the air exhaust and wrinkle removal mechanism also accelerates the expulsion of air by spraying gas from above onto the currently spread fabric. Through the air exhaust and wrinkle removal mechanism, this fabric spreading machine ensures a tight fit between the spread fabrics, effectively reducing wrinkles and improving the uniformity, flatness, and tightness of the spread, thus facilitating the subsequent fabric cutting operation.

[0105] 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 fabric spreading machine based on the principle of exhaust and wrinkle removal, characterized in that, It includes a workbench, hopper, fabric conveying roller mechanism, fabric spreading mechanism, fabric pressing mechanism, and air venting and wrinkle removal mechanism; Both the spreading mechanism and the pressing mechanism are mounted on the worktable, and the spreading mechanism is configured to slide between its initial position and the pressing mechanism. Both the hopper and the fabric conveying roller mechanism are mounted on the fabric spreading mechanism. The fabric conveying roller mechanism is used to introduce the front end of the roll of fabric contained in the hopper into the fabric spreading mechanism. The spreading mechanism is used to drive the front end of the fabric introduced therein to slide towards the pressing mechanism to achieve fabric feeding, and after the front end of the fabric is pressed by the pressing mechanism, it returns to the initial position to achieve spreading. The exhaust and wrinkle removal mechanism is used to slide behind the fabric on the worktable during the non-first-time unfolding process of the fabric unfolding mechanism, and during the sliding process, it exhausts the air left between the fabric unfolded this time and the fabric unfolded last time by applying contact pressure to the fabric unfolded this time and spraying gas from above to the fabric unfolded this time. A first slide rail is provided on the first side of the workbench, and a second slide rail is provided on the second side of the workbench. The spreading mechanism can slide on the workbench based on the first slide rail and the second slide rail. The exhaust wrinkle removal mechanism includes an exhaust wrinkle removal mechanism body, a first drive structure, and a second drive structure. The first driving structure has the same structure as the second driving structure. The first driving structure includes a third electrically controlled slider, a first electrically controlled rotating shaft, and a robotic arm. The third electrically controlled slider is configured to slide on the first slide rail, and the first electrically controlled rotating shaft is vertically disposed on the side of the third electrically controlled slider facing the second side. The robotic arm is connected to the first electrically controlled rotating shaft at its first end, so that it is located outside the worktable and parallel to the first side. The second drive structure is disposed on the second slide rail and is arranged in a mirror image of the first drive structure in a horizontal direction perpendicular to the sliding direction of the spreading mechanism; The main body of the exhaust and wrinkle removal mechanism is connected to the second end of the mechanical arm of the first drive structure and the second end of the mechanical arm of the second drive structure, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism. The main body of the exhaust wrinkle removal mechanism includes an air jet rod and an exhaust plate.

2. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 1, characterized in that, The fabric spreading mechanism includes a fabric pressing assembly, which is used to clamp the front end of the fabric extending from the rear during the fabric feeding process, release the fabric during the spreading process, and clamp the fabric after one spreading operation and before the spread fabric is cut.

3. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 2, characterized in that, The spreading mechanism also includes a spreading mechanism body, which is divided into a first sliding base and a second sliding base arranged opposite to each other, and a top plate supported by both. The first sliding base is able to slide on the first side of the worktable based on the first slide rail; The second sliding base is able to slide on the second side of the worktable based on the second slide rail; The pressing assembly includes a pressing assembly body, a first electrically controlled slider, and a second electrically controlled slider. Both the first sliding base and the second sliding base have a front end face facing the fabric pressing mechanism. The first electrically controlled slider is configured to slide up and down on the front end face of the first sliding base, and the second electrically controlled slider is configured to slide up and down on the front end face of the second sliding base. The two ends of the main body of the pressing assembly are respectively connected to the first electrically controlled slider and the second electrically controlled slider, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the spreading mechanism.

4. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 3, characterized in that, It also includes a fabric cutting mechanism, which includes a slide bar and a cutting blade; The two ends of the slide rod are respectively connected to the first electrically controlled slider and the second electrically controlled slider, so that it is arranged in a horizontal direction perpendicular to the sliding direction of the fabric spreading mechanism and located above the main body of the fabric pressing assembly. The cutting blade is configured to slide on the slide bar to cut the unfolded fabric.

5. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 1, characterized in that, The robotic arm of the first drive structure includes a first arm segment, a second arm segment, and a second electrically controlled rotating shaft. The first arm segment and the second arm segment are hinged together by the second electrically controlled rotating shaft to form a V-shaped structure. The free end of the first arm segment is connected to the first electrically controlled rotating shaft, and the free end of the second arm segment is connected to the first end of the jet rod. The second boom section is implemented using an electrically controlled telescopic boom.

6. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 5, characterized in that, The first driving structure also includes a limiting slider and a limiting baffle; The limiting slider is disposed on the jet rod and near its first end, and is configured to slide on the jet rod; The limiting baffle is connected to the limiting slider and is used to limit the corresponding edge of the fabric.

7. The fabric spreading machine based on the principle of exhaust de-wrinkling as described in claim 6, characterized in that, The fabric pressing mechanism includes a fabric pressing mechanism body, a first support, and a second support; The first support and the second support are disposed opposite to each other on the workbench and are respectively close to its first side and second side; The two ends of the main body of the pressing mechanism are respectively slidably matched with the first support and the second support to achieve its own position adjustment in the vertical direction.

8. The fabric spreading machine based on the principle of exhaust de-wrinkling according to claim 7, characterized in that, The main body of the pressing mechanism includes a pressing frame and a fourth and a fifth electrically controlled slider respectively disposed at both ends of the pressing frame; A first slide rail matching the fourth electrically controlled slider is provided on the first support, and a second slide rail matching the fifth electrically controlled slider is provided on the second support.

9. The fabric spreading machine based on the principle of exhaust de-wrinkling according to claim 1, characterized in that, The two ends of the jet rod are respectively connected to the second end of the mechanical arm of the first drive structure and the second end of the mechanical arm of the second drive structure. Inside the jet rod, a main air passage is formed along its extension direction, and a plurality of secondary air passages are connected to the main air passage. The first end of the main air passage is closed and its second end is used to connect to an external air source. The secondary air passages are straight passages and their inlets are higher than their outlets. The outlets of the plurality of secondary air passages are distributed along the extension direction of the jet rod in the lower middle part of the side of the jet rod opposite to the spreading mechanism. The exhaust plate is disposed on the bottom surface of the jet rod along the extension direction of the jet rod, and the lower edge of the exhaust plate is closer to the unfolding mechanism than its upper edge. The exhaust plate applies contact pressure to the unfolded fabric through its lower edge.

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