Automatic cloth joining device, shaping machine and cloth joining method

Abstract

The present invention relates to the field of textile machinery technology, and relates to an automatic cloth joining device, a setting machine and a cloth joining method, wherein the device comprises a frame, a cloth guide groove arranged on the frame, a flattening mechanism arranged on the frame and distributed on both sides of the cloth guide groove, a sewing mechanism arranged on the frame and horizontally arranged below the cloth guide groove, and a clamping mechanism arranged on the frame and located below the cloth guide groove. The automatic cloth joining device provided by the present invention can directly sew cloth in a drooping state, and does not require an additional mechanism to pull the cloth to a horizontal direction for sewing, thereby simplifying the mechanism and improving efficiency; the flattening mechanism is used to unfold the edge of the cloth in a drooping state, so as to avoid the phenomenon of the overlapped edge causing the thickness of the cloth edge to increase and causing the needle to get stuck or break during sewing; the clamping mechanism is used to flatten and tighten the drooping cloth, so as to avoid the phenomenon of the cloth surface being stacked in a wavy state and causing the needle to get stuck or break during sewing.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, and relates to an automatic cloth joining device, a shaping machine and a cloth joining method. Background Art

[0002] Setting machine equipment is widely used in the textile industry, but the source of cloth materials is independent cloth rolls that are not connected. When the cloth enters the setting machine, in order to achieve continuous feeding, workers must manually sew it to ensure that the head of the next roll of cloth is connected to the tail of the previous roll of cloth before the previous roll of cloth ends.

[0003] In order to improve the efficiency of cloth joining, a mechanized operation is adopted. The existing automatic cloth joining device sews the ends of the two rolls of cloth to achieve continuous feeding. However, this automatic cloth joining device has the defects of the cloth not being stretched, the surface being uneven, and the cloth not being aligned, which leads to needle jamming and breaking during sewing. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the first object of the present invention is to provide an automatic cloth joining device that can realize the unfolding and flattening of the edges of the cloth and directly sew the cloth when it is in a drooping state.

[0005] The plan is as follows:

[0006] An automatic cloth receiving device, comprising:

[0007] frame;

[0008] A cloth guide groove, provided on the frame, for placing and guiding the cloth;

[0009] A flattening mechanism is arranged on the frame and distributed on both sides of the cloth guide groove, and is used for flattening and aligning the new cloth and the old cloth before sewing;

[0010] A sewing mechanism is arranged on the frame and horizontally arranged below the cloth guide groove, and is used for sewing new cloth and old cloth;

[0011] The clamping mechanism is arranged on the frame and located below the cloth guiding groove, and is used for tightening the naturally drooping cloth.

[0012] Furthermore, a partition plate is provided in the fabric guiding groove, and the partition plate divides the fabric guiding groove into a first fabric guiding groove and a second fabric guiding groove;

[0013] The fabric guiding groove moves inwardly to close or outwardly to open.

[0014] Further, the flattening mechanism includes a flattening assembly, a U-shaped clamp and a first traveling shaft;

[0015] The first traveling shafts are respectively fixedly connected to the frames, the first traveling shafts are connected to the U-shaped clips, the U-shaped clips move horizontally along the fabric guide groove on the first traveling shafts, and the U-shaped clips drive the flattening assembly to move horizontally along the fabric guide groove;

[0016] The flattening component is located in the space clamped by the U-shaped clamp, a baffle extends from the inner side of the U-shaped clamp, one end of the flattening component is connected to the U-shaped clamp, and the flattening component moves closer to or away from the baffle in the U-shaped clamp.

[0017] Furthermore, the flattening component is fitted with the partition plate, and the flattening component and one side of the fabric guide groove form a notch of a first fabric guide groove with a V-shaped cross-section, and the flattening component and the other side of the fabric guide groove form a notch of a second fabric guide groove with a V-shaped cross-section.

[0018] Furthermore, the number of the flattening mechanisms is four, and two flattening mechanisms are respectively provided on both sides of the fabric guiding groove.

[0019] Furthermore, the flattening mechanism also includes a sensor, which is arranged on the flattening component and is used to detect the edge of the cloth.

[0020] Furthermore, the flattening mechanism includes a roller, a first walking shaft and a gripping mechanism;

[0021] The first walking shaft is fixedly connected to the frame, the first walking shaft is connected to the roller, the roller moves horizontally along the cloth guide groove on the first walking shaft, and the grabbing mechanism is used for grabbing the edge of the cloth.

[0022] Furthermore, the gripping mechanism includes a vacuum suction device.

[0023] Furthermore, the sewing mechanism includes a relative needle mechanism and a rotary hook mechanism, and the frames located on both sides of the cloth guide groove are respectively provided with second traveling shafts, and the second traveling shafts on both sides are relatively horizontally arranged;

[0024] The needle mechanism is connected to the second traveling shaft on one side, and the shuttle mechanism is connected to the second traveling shaft on the remaining side; through the synchronization mechanism, the needle mechanism and the shuttle mechanism make synchronous horizontal movements along the direction of the fabric guide groove on the second traveling shaft; the relative distance between the needle mechanism and the shuttle mechanism can be adjusted.

[0025] Furthermore, the rotary hook mechanism is also provided with a cutting mechanism for cutting excess fabric after sewing.

[0026] Furthermore, the synchronization mechanism includes one or more of a synchronous belt mechanism, a screw mechanism, a linear motor or a rack.

[0027] Furthermore, the clamping mechanism includes two clamping plates arranged opposite to each other, the clamping space between the two clamping plates corresponds to the fabric guide groove, the clamping plates move inward to clamp or move outward to release under the action of the power device, the clamping plates are connected to the third walking shaft, the third walking shaft is fixedly connected to the frame, and the clamping plates move on the third walking shaft away from or close to the fabric guide groove.

[0028] Correspondingly, a shaping machine is also provided, comprising the above-mentioned automatic cloth receiving device.

[0029] Accordingly, a cloth joining method is also provided, which is implemented by using the above-mentioned automatic cloth joining device, and comprises the following steps:

[0030] Flatten the edges of new and old fabrics;

[0031] Grab the edges of new and old fabrics;

[0032] Align the beginning of the new cloth with the end of the old cloth;

[0033] Clamping the first position of the new cloth and the old cloth and moving them a first predetermined distance;

[0034] Clamping the new cloth and the old cloth at the second position, so that the new cloth and the old cloth are attached to each other in the area between the first position and the second position;

[0035] The new cloth and the old cloth in the area between the first position and the second position are sewn together.

[0036] Furthermore, the method further includes the following steps: loosening the clamping of the new cloth and the old cloth at the second position, moving the second predetermined distance, clamping the new cloth and the old cloth at a third position, and sewing the new cloth and the old cloth in the area between the second position and the third position.

[0037] Furthermore, the method further comprises a cutting step, wherein the cutting step cuts off the redundant parts of the new cloth and the old cloth after sewing.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The automatic cloth joining device provided by the present invention has a sewing mechanism that is horizontally arranged, and can directly sew cloth in a drooping state, without the need for an additional mechanism to pull the cloth to a horizontal direction for sewing, thereby simplifying the mechanism and improving efficiency;

[0040] 2. The automatic cloth joining device provided by the present invention unfolds the edges of the cloth in a drooping state through a flattening mechanism, thereby avoiding the phenomenon that the thickness of the cloth edges increases due to overlapping edges, causing needle jamming or needle breakage during sewing. The flattening mechanism can also align the head and tail sections of the new cloth and the old cloth to avoid misalignment, thereby improving the strength of the seam and the standardization of feeding;

[0041] 3. The automatic cloth joining device provided by the present invention can flatten and tighten the sagging cloth through the clamping mechanism, so as to avoid the phenomenon that the cloth surface is stacked in a wavy state and causes the needle to get stuck or break during sewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0043] Figure 1 This is a schematic diagram of an automatic cloth-joining device according to an embodiment of the present invention;

[0044] Figure 2 It is a top view of the automatic cloth receiving device according to an embodiment of the present invention;

[0045] Figure 3 It is a cross-sectional view of the automatic cloth receiving device according to an embodiment of the present invention;

[0046] Figure 4 It is a side view of the automatic cloth receiving device according to an embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of a flattening mechanism according to an embodiment of the present invention;

[0048] Figure 6 A top view of a flattening mechanism according to an embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram of a clamping mechanism according to an embodiment of the present invention;

[0050] Figure 8 A top view of a clamping mechanism according to an embodiment of the present invention;

[0051] Fig. 9 It is a front view of the clamping mechanism of an embodiment of the present invention;

[0052] Fig.10 It is a schematic diagram of a cloth receiving device and an unwinding mechanism according to an embodiment of the present invention;

[0053] Fig.11 The figure is a schematic flow chart of the automatic cloth joining method according to an embodiment of the present invention.

[0054] Reference numerals:

[0055] 10-automatic cloth receiving device; 20-unwinding mechanism; 100-frame; 200-cloth guide groove; 201-separator; 202-first cloth guide groove; 203-second cloth guide groove; 300-flattening mechanism; 310-flattening assembly; 311-flattening block; 312-second movable assembly; 320-resting assembly; 330-first connecting assembly; 331-first connecting part; 332-second connecting part; 333-third connecting part; 340-first movable assembly; 4 00-sewing mechanism; 401-needle mechanism; 402-hook mechanism; 403-second walking axis; 404-cutting mechanism; 500-clamping mechanism; 510-clamping assembly; 511-clamping space; 512-first clamping block; 512a-first moving cross bar; 513-second clamping block; 513a-second moving cross bar; 514-guide rail; 515-rotating shaft; 516-elastic block; 520-third movable assembly; 530-second connecting assembly. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0059] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0060] Figure 1-9 Schematic diagram of an automatic cloth joining device according to an embodiment of the present invention.

[0061] Please refer to Figure 1-9 , is an embodiment of an automatic cloth joining device, which is used for connecting the head end of new cloth and the end of old cloth in a setting machine, and includes a frame 100, a cloth guide groove 200, a flattening mechanism 300, a sewing mechanism 400 and a clamping mechanism 500. Among them, the frame 100 is used for the installation and support of various component mechanisms, such as the above-mentioned cloth guide groove 200, the flattening mechanism 300, the sewing mechanism 400 and the clamping mechanism 500. The cloth guide groove 200 is installed on the frame and is used for the placement and guidance of cloth. The head end of the new cloth and the end of the old cloth meet after passing through the cloth guide groove 200, and the new cloth and the old cloth are in a naturally drooping state. The flattening mechanism 300 is installed on the frame 100, distributed on both sides of the cloth guide groove 200, and the flattening mechanism 300 extends into the cloth guide groove 200, and is used for leveling and aligning the new cloth and the old cloth before sewing, so as to avoid the overlap of the edges of the new cloth and the old cloth, which leads to an increase in the thickness of the cloth. The sewing mechanism 300 is mounted on the frame 100 and horizontally arranged below the cloth guide groove 200, and is used to sew the new cloth and the old cloth in a state perpendicular to the horizontal plane. The clamping mechanism 500 is arranged on the frame 100, located below the cloth guide groove 200, and is used to tighten the naturally drooping cloth to prevent the cloth surface from being wavy and causing the needle to be stuck or broken.

[0062] Specifically, Figure 3 As shown, in this embodiment, the cloth guide groove 200 is located in the middle of the frame 100, and a partition plate 201 is provided in the cloth guide groove 200, and the partition plate 201 divides the cloth guide groove 200 into a first cloth guide groove 202 and a second cloth guide groove 203. The first cloth guide groove 202 and the second cloth guide groove 203 are symmetrical with the partition plate 201 as a symmetry point, and the first cloth guide groove 202 is used to pass new cloth, and the second cloth guide groove 203 is used to pass old cloth, but it is not limited to this, the first cloth guide groove 202 can also be used to pass old cloth, and the second cloth guide groove 203 is used to pass new cloth accordingly. The function of the partition plate 201 is to separate the new cloth and the old cloth entering the cloth guide groove 200, so that the subsequent flattening mechanism 300 can unfold the edges of the new cloth and the old cloth respectively. The side of the cloth guide groove 200 is an outwardly inclined slope, and the top of the partition plate 201 shrinks inwardly to form a slope, forming a V-shaped opening with the slope of the cloth guide groove 200. This tapered opening facilitates the cloth to enter the cloth guide groove 200 and pass through the cloth guide groove 200 to the next workstation.

[0063] In addition, the size of the slot of the fabric guide slot 200 can be changed by moving the side of the fabric guide slot 200, so that the fabric passing through the fabric guide slot 200 can be clamped. In conjunction with the clamping mechanism 500 provided below the fabric guide slot 200, the new fabric and the old fabric in the stitching area can be closely fitted, thereby improving the effectiveness of sewing.

[0064] In this embodiment, the flattening mechanism 300 is as follows: Figure 5-6 As shown, the flattening mechanism 300 includes a flattening component 310, a butting component 320, a first connecting component 330 and a first movable component 340. The flattening component 310 and the butting component 320 are arranged relative to each other, and there is a gap between the flattening component 310 and the butting component 320, and the gap is used for placing the cloth, and the port of the cloth can be placed in the gap through the feeding mechanism. The flattening component 310 is a movable end, which can realize reciprocating motion in a first direction. The first direction described in this embodiment is the direction of approaching or moving away from the butting component 320, so the width of the gap can be adjusted by the movement of the flattening component 310. The butting component 320 is a fixed end, and the fixed end mentioned here means that the butting component 320 is not movable in the direction toward the flattening component 310, and the butting component 320 is used for limiting and butting the cloth. The first connecting assembly 330 is connected to the flattening assembly 310 and the abutting assembly 320 respectively, and the first connecting assembly 330 is also connected to the first movable assembly 340. The first movable assembly 340 drives the flattening assembly 310 and the abutting assembly 320 to reciprocate in the second direction through the first connecting assembly 330. The first movable assembly 340 is fixedly connected to the frame 100 and is arranged parallel to the fabric guide groove 200. The second direction in this embodiment refers to the flattening direction of the fabric, specifically, the direction parallel to the fabric guide groove 200.

[0065] The specific flattening process of this embodiment is as follows: the flattening component 310 moves away from the abutting component 320, the gap between the two becomes larger, and the discharge mechanism operates to place the cloth port in the gap; the first movable component 340 drives the flattening component 310 and the abutting component 320 to move to a position close to the middle of the cloth port, and the flattening component 310 approaches the abutting component 320 to narrow the gap between the two, so that the gap between the two is slightly larger than the thickness of the cloth; finally, the first movable component 340 drives the flattening component 310 and the abutting component 320 to move to the side of the cloth port to flatten the cloth. The flattening principle of this embodiment is as follows: since the gap between the flattening component 310 and the abutting component 320 is slightly larger than the thickness of the fabric, and the thickness of the fabric in the rolled-up state is greater than the thickness of the fabric without rolling up, when the first movable component 340 drives the flattening component 310 and the abutting component 320 to pass through the rolled-up part of the fabric, due to the limitation of the gap width, the rolled-up part with a relatively thick thickness cannot pass through the gap, and under the limitation of the gap width and the action of the flattening component 310 and the abutting component 320, the rolled-up part will be flattened.

[0066] Specifically, in this embodiment, the flattening assembly 310 includes a flattening block 311 and a second movable assembly 312. The flattening block 311 is connected to the second movable assembly 312, and the second movable assembly 312 is connected to the first connecting assembly 330. The second movable assembly 312 drives the flattening block 311 to reciprocate in the first direction, that is, drives the flattening block 311 to make a telescopic movement close to or away from the abutting assembly 320. The flattening block 311 is a convex-shaped structure with a certain thickness. The second movable assembly 312 can be an electric cylinder, a linear rotary motion mechanism, and specifically an electric cylinder or a pneumatic cylinder. The telescopic end of the electric cylinder is connected to the protrusion of the flattening block 311 to push the flattening block 311 to make a telescopic movement. A movable connecting shaft 313 is also provided on the lower side where the flattening block 311 is connected to the telescopic end of the electric cylinder for connecting the flattening block 311 and the first connecting assembly 330. The movable connecting shaft 313 can balance the force on the flattening block 311.

[0067] In this embodiment, the first movable component 340 can specifically adopt a first traveling shaft, and the flattening component 310 and the abutting component 320 move horizontally on the first traveling shaft through the first connecting component 330, and the first traveling shaft is provided with a guide rail matching the first connecting component 330 and the second movable component 312.

[0068] In this embodiment, the first connecting component 330 includes a first connecting portion 331, a second connecting portion 332 and a third connecting portion 333. The first connecting portion 331 is connected to the abutting component 320, the second connecting portion 332 is connected to the flattening component 310, and the third connecting portion 333 is used to connect the first connecting portion 331 and the second connecting portion 332. A space for accommodating the flattening component 310 and the abutting component 320 is provided between the first connecting portion 331 and the second connecting portion 332, and the gap between the flattening component 310 and the abutting component 320 is located in the space. The first connecting portion 331 and the second connecting portion 332 both have a certain length.

[0069] Specifically, the first connecting component 330 is a U-shaped structure, one straight side of the U-shaped structure is a first connecting portion 331, the other straight side of the U-shaped structure is a second connecting portion 332, and the curved section of the U-shaped structure is a third connecting portion 333. The flattening component 310 and the abutting component 320 are located in the space sandwiched by the U-shaped structure, the flattening component 310 is connected to one of the inner straight sides of the U-shaped structure and is arranged close to the open end of the U-shaped structure, and the abutting component 320 is connected to the other inner side of the U-shaped structure. In addition, the closed end of the U-shaped structure is located on the outside and the open end is located on the inside to adapt to the flattening direction of the cloth and avoid the closed end from interfering with the flattening component 310 during the flattening process.

[0070] In this embodiment, the abutting component 320 is a sheet-shaped baffle plate used to limit the cloth, and its shape can be modified according to actual conditions, such as bending, etc. In addition, the area of ​​the abutting component 320 is larger than the contact area between the abutting component 320 and the flattening component 310 to ensure the contact area with the cloth, so that the cloth remains flat during the flattening process.

[0071] Specifically, the surface of the abutting component 320 is bent into an inclined plane and extends into the fabric guiding groove 200. The abutting component 320 is respectively fitted with the two side surfaces of the partition plate 201. The abutting component 320 and one side of the fabric guiding groove 200 form a notch of a first fabric guiding groove 202 with a V-shaped cross section. The abutting component 320 and the other side of the fabric guiding groove 200 form a notch of a second fabric guiding groove 203 with a V-shaped cross section, ensuring that the fabric guiding groove 200 has a V-shaped opening design.

[0072] In this embodiment, the flattening assembly 310 further includes a sensor (not shown), which is disposed on the flattening block 311 and functions to detect the edge of the fabric, and to control the first movable assembly 340 to drive the flattening assembly 310 and the abutting assembly 320 to move by edge detection. Specifically, the sensor may be an optical sensor, and the abutting assembly 320 and the fabric have different degrees of surface reflectivity. When the sensor follows the flattening assembly 310, if the sensor senses that the degree of surface reflectivity changes within a predetermined range, it can be determined that the flattening assembly 310 is close to or has reached the edge, and can be further used to determine the end point of the flattening assembly 310. In other embodiments, the sensor may also be a visual sensor.

[0073] Specifically, when the flattening component 310 reaches the edge, the flattening component 310 further moves toward the abutting component 320. At this time, the flattening component 310 contacts the abutting component 320, and the flattening component 310 and the abutting component 320 press the edge of the cloth tightly, and cooperate with the cloth unfolding device on the edge of the other side to achieve the grabbing of the edges of both sides of the cloth. The cloth is moved by the movement of the first movable component 340, and then the new cloth and the old cloth in the cloth joining device can be aligned before sewing.

[0074] In this embodiment, the flattening assembly 310 further includes a blowing mechanism (not shown), which is disposed on the flattening block 311. The blowing mechanism may specifically be a high-pressure blowing mechanism, which is used to blow the edge of the fabric flat by high-pressure gas during the flattening process of the flattening assembly 310, so that the flattening process of the flattening assembly 310 flattening the edge of the fabric is smoother, further improving the flattening effect.

[0075] Specifically, in this embodiment, the number of the flattening mechanisms 300 is four, and correspondingly, the number of the flattening assembly 310, the abutting assembly 320, the first connecting assembly 330 and the first movable assembly 340 are four respectively. Two flattening mechanisms 300 are respectively arranged on both sides of the cloth guide groove 200, and are symmetrically arranged. The four flattening mechanisms 300 respectively flatten and unfold the edges of the two corners of the new cloth and the two corners of the old cloth, and realize the alignment of the head and tail sections of the new cloth and the old cloth.

[0076] In other embodiments, the flattening mechanism 300 includes a roller (not shown) compared to the above-mentioned embodiments, and the roller can be a powered or unpowered roller, and also includes a first travel shaft and a gripping mechanism. Among them, the first travel shaft is fixedly connected to the frame 100, and the first travel shaft is connected to the roller. The roller moves horizontally along the direction of the cloth guide groove 200 on the first travel shaft, and then the edge of the cloth in the cloth guide groove 200 is pushed flat and unfolded, so as to achieve the purpose of flattening the edge of the cloth by the flattening mechanism 300. The gripping mechanism is used to grab the edge of the cloth, and to align the edges of the new cloth and the old cloth on both sides of the partition plate 201 in the cloth guide groove 200, so as to avoid the misalignment of the new cloth and the old cloth, and improve the strength of the seam and the standardization of the feeding. The gripping mechanism can be an electric cylinder or an electric push cylinder, or a vacuum suction device, which can grab and align the edge of the cloth by vacuum suction.

[0077] In this embodiment, the sewing mechanism 400 includes a needle mechanism 401 and a rotary shuttle mechanism 402 that are arranged opposite to each other. The frame 100 located on both sides of the cloth guide groove 200 is respectively provided with a second travel shaft 403, and the second travel shafts 403 on both sides are arranged relatively horizontally. Among them, the needle mechanism 401 is connected to the second travel shaft 403 on one side, and the rotary shuttle mechanism 402 is connected to the second travel shaft 403 on the remaining side. Through a synchronous mechanism (not shown), the needle mechanism 401 and the rotary shuttle mechanism 402 perform horizontal synchronous motion on the second travel shaft 403 along the direction of the cloth guide groove 200 to sew the new cloth and the old cloth passing through the cloth guide groove 200. The needle mechanism 401 and the rotary shuttle mechanism 402 in this embodiment are independent mechanisms. The second travel shaft 403 can specifically be selected from a synchronous belt mechanism, a screw mechanism, a linear motor, and a gear rack. The synchronous motion of the needle mechanism 401 and the rotary shuttle mechanism 402 along the second travel shaft 403 can be achieved by motor synchronous motion or rigid structure connection. The distance between the needle mechanism 401 and the rotary hook mechanism 402 can be adjusted on the guide rail by a power mechanism. Figure 4 As shown, the rotary shuttle mechanism 402 is also provided with a cutting mechanism 404, which can cut off the excess tail after suturing.

[0078] In this embodiment, the clamping mechanism 500 is as follows: Figure 7-9As shown, the clamping mechanism 500 includes a clamping assembly 510, a third movable assembly 520 and a second connecting assembly 530. The clamping assembly 510 is connected to the third movable assembly 520 via the second connecting assembly 530, and the third movable assembly 520 drives the second connecting assembly 530 to drive the clamping assembly 510 connected to the second connecting assembly 530 to perform linear reciprocating motion. The linear reciprocating motion in this embodiment refers to the motion along the cloth feeding direction, or the motion in the direction limited by the structure of the third movable assembly 520 itself. The clamping assembly 510 includes a clamping space 511, which corresponds to the cloth guiding groove 200 above. The clamping space 511 can be used for the passage of cloth. The cloth to be clamped passes through the clamping space 511. The width of the clamping space 511 can be adjusted. The cloth can be clamped by adjusting the width of the clamping space 511. When the clamping assembly 510 contracts inwardly, the clamping space 511 is reduced to clamp the cloth. When the clamping assembly 510 opens outwardly, the clamping space 511 is enlarged to loosen the cloth.

[0079] Specifically, in this embodiment, the second connecting component 530 is a storage plate, a portion of the side protrusion of the storage plate is connected to the third movable component 520, the front of the storage plate is connected to the clamping component 510, and the back of the storage plate is provided with reinforcing ribs to improve the bearing capacity of the storage plate.

[0080] Specifically, in this embodiment, the clamping assembly 510 includes a first clamping block 512, a second clamping block 513, a guide rail 514 and a rotating shaft 515. The first clamping block 512 and the second clamping block 513 are symmetrically arranged, and a clamping space 511 is arranged between the first clamping block 512 and the second clamping block 513, and the clamping space 511 is composed of the first clamping block 512 and the second clamping block 513. The first clamping block 512 and the second clamping block 513 are in the shape of a long strip, and their lengths are adapted to the width of the fabric, and the lengths can be set according to the width of the fabric. Correspondingly, the clamping space 511 between the first clamping block 512 and the second clamping block 513 is in the shape of a long strip. The rotating shaft 515 is arranged on the front of the storage plate, and is located in the clamping space 511 between the first clamping block 512 and the second clamping block 513. The first clamping block 512 is provided with a first movable cross bar 512a, and the first movable cross bar 512a extends vertically into the clamping space 511; the second clamping block 513 is provided with a second movable cross bar 513a, and the second movable cross bar 513a extends vertically into the clamping space 511; the first movable cross bar 512a and the second movable cross bar 513a are staggered in the clamping space 511 without interfering with each other, wherein the first movable cross bar 512a is engaged with one side of the rotating shaft 515, and the second movable cross bar 513a is engaged with the other side of the rotating shaft 515, and the other side of the rotating shaft mentioned here refers to the side opposite to the side where the first cross bar 512a is engaged with the rotating shaft 514. The first clamping block 512 and the second clamping block 513 are disposed on a guide rail 514 , and the guide rail 514 is vertically disposed to the first clamping block 512 and the second clamping block 513 . The guide rail 514 is fixedly disposed on the storage plate, and the first clamping block 512 and the second clamping block 513 move relative to each other on the guide rail 514 .

[0081] One of the guide rail 514 and the rotating shaft 515 can be selected as a power output mechanism, and the remaining mechanism can be used as a slave power mechanism to play a guiding and limiting role, limiting the movement direction and travel distance of the first clamping block 512 and the second clamping block 513. For example, the rotating shaft 515 is used as a power output mechanism. When the rotating shaft 515 rotates, the first moving cross bar 512a and the second moving cross bar 513a are transmitted. If the rotating shaft 515 rotates clockwise, the rotating shaft 515 drives the first moving cross bar 512a to move rightward on the guide rail 514. At the same time, the rotating shaft 515 drives the second moving cross bar 513a to move leftward on the guide rail 514. Correspondingly, the first moving cross bar 512a drives the first clamping block 512 to move outward, and the second moving cross bar 513a drives the second clamping block 513 to move outward, that is, the first clamping block 512 and the second clamping block 513 move away from each other. At this time, the clamping space 511 between the first clamping block 512 and the second clamping block 513 becomes larger; if the rotating shaft 515 rotates counterclockwise, the rotating shaft 515 drives the first moving cross bar 512a to move leftward on the guide rail 514, and drives the second moving cross bar 513a to move rightward on the guide rail 514. Correspondingly, the first moving cross bar 512a drives the first clamping block 512 to move inward, and the second moving cross bar 513a drives the second clamping block 513 to move inward, that is, the first clamping block 512 and the second clamping block 513 are close to each other, and the clamping space 511 between the first clamping block 512 and the second clamping block 513 is reduced. If the guide rail 514 is used as the power output mechanism, the above transmission process can be changed accordingly, and no further details are given here.

[0082] In this embodiment, elastic blocks 516 are provided on the contact surfaces of the first clamping block 512 and the second clamping block 513, and the elastic blocks 516 are arranged in an alternating manner. The elastic blocks 516 are arranged to achieve better clamping of the fabric. Since the first clamping block 512 and the second clamping block 513 have a certain length, and the force-bearing ends of the first clamping block 512 and the second clamping block 513 are located at both ends, the forces at both ends are relatively large during the clamping process, so the middle of the clamping block will be slightly deformed and bulge outward, resulting in a lower degree of fit in the area near the middle of the clamping block, a reduced clamping force, and a poor clamping effect of the fabric. The problem of uneven force on the clamping block can be solved by providing a raised elastic block 516 on the contact surface of the clamping block. When the clamping block is clamped, the elastic block 516 can provide a part of the clamping force to ensure effective clamping of the fabric. The elastic block 116 in this embodiment is cylindrical, and can be made of a spring or other elastic material, such as rubber.

[0083] In this embodiment, the third movable component 520 is a third travel axis, and there are two third travel axes, which are distributed at both ends of the clamping component 510, fixedly connected to the frame 100, and symmetrically arranged. The clamping component 510 can be displaced to a certain extent through the movable component 520. After the clamping component 510 clamps and positions the cloth, the movable component 520 drives the clamping component 510 to displace, pulls the clamped cloth, and then flattens the cloth surface to avoid needle breakage and needle jamming during subsequent sewing.

[0084] In this embodiment, the distance between the clamping assembly 110 and the fabric guiding groove 200 can be adjusted through the third movable assembly 520, thereby adjusting the area of ​​the fabric fixing region between the clamping assembly 110 and the fabric guiding groove 200.

[0085] Accordingly, a setting machine embodiment is also provided, comprising: Fig.10 The above embodiment shows an automatic cloth receiving device 10 and an unwinding mechanism 20 , wherein the unwinding mechanism 20 is used to place cloth into a cloth guiding groove 200 of the automatic cloth receiving device 10 .

[0086] Fig.11 The present invention provides a schematic flow chart of an automatic cloth joining method embodiment.

[0087] Please refer to Fig.11 , the method embodiment comprises the following steps:

[0088] S100, fabric flattening; S200, fabric grabbing; S300, fabric alignment; S400, fabric clamping; S500, confirming the sewing area; S600, fabric sewing; S700, switching the sewing area; S800, cutting the excess fabric.

[0089] Specifically, in step S100, the edges of the new cloth and the old cloth are flattened. This step is achieved by a flattening mechanism. After the new cloth and the old cloth enter the cloth guide groove, the cloth is located between the flattening block and the abutment component. By adjusting the distance between the flattening block and the abutment component, the distance between the two is made slightly larger than the thickness of the cloth. Then the flattening mechanism moves from the inside to the outside to flatten the edges on both sides of the cloth.

[0090] Specifically, in step S200, the edge of the cloth is grasped, and this step is achieved through the sensor, the abutment assembly and the flattening block in the flattening mechanism. After the edge of the cloth is flattened, the sensor detects whether the flattening block reaches the edge of the cloth. If it reaches the edge, the flattening block moves toward the abutment assembly to clamp the cloth therein.

[0091] Specifically, step S300 is to align the leading end of the new cloth with the trailing end of the old cloth. This step is implemented by a flattening mechanism. After the flattening mechanism grabs and fixes the edges of the new cloth and the old cloth, the leading end of the new cloth is aligned with the trailing end of the old cloth by moving the flattening mechanism.

[0092] Specifically, the clamping and movement of the cloth in step S400 is achieved through a clamping mechanism. After the new cloth is aligned with the old cloth, the clamping mechanism located below the flattening mechanism clamps the new cloth and the old cloth together. The clamping position is the first position. Then, the cloth is pulled down a certain distance so that the clamping position exceeds the sewing position of the sewing mechanism. The distance is the first predetermined distance.

[0093] Specifically, step S500 confirms that the sewing area specifically includes the following contents: the cloth guide groove contracts inward to clamp the cloth, and the clamping position is the second position. At this time, the new cloth and the old cloth are in a fitted state in the cloth area between the cloth guide groove and the clamping mechanism, and this area is the sewing area.

[0094] Specifically, in step S600, the sewing mechanism sews the cloth in the clamping area, and sews the cloth in sequence through the second traveling axis.

[0095] Specifically, step S700 of switching the sewing area specifically includes the following contents: the cloth guide groove releases the clamping of the cloth, and after the clamping mechanism moves downward for a distance, the cloth guide groove clamps the cloth again to switch the stitching area, realize secondary stitching, and enhance the strength of stitching.

[0096] Specifically, the cutting step in step S800 is to cut the excess fabric by a cutting knife.

[0097] In summary, the embodiments provided by the present invention can directly sew cloth in a sagging state, without the need for an additional mechanism to pull the cloth in a horizontal direction for sewing, thereby simplifying the mechanism and improving efficiency; the edges of the cloth in a sagging state are unfolded by a flattening mechanism to avoid overlapping edges that increase the thickness of the edges of the cloth and cause needle jamming or needle breakage during sewing; the flattening mechanism can also align the head and tail sections of the new cloth and the old cloth to avoid misalignment, thereby improving the strength of the seams and the standardization of feeding; the sagging cloth is flattened and tightened by a clamping mechanism to avoid the phenomenon of needle jamming or needle breakage during sewing due to the surface of the cloth stacking in a wavy state.

[0098] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic cloth receiving device, characterized in that: include: frame; A cloth guide groove is provided on the frame and is used for placing and guiding cloth, wherein the size of the groove opening of the cloth guide groove is changed by moving the side of the cloth guide groove, so as to clamp the cloth passing through the cloth guide groove; A flattening mechanism is arranged on the frame and distributed on both sides of the cloth guide groove, and is used for flattening and aligning the new cloth and the old cloth before sewing; The flattening mechanism includes a roller, a first walking shaft and a grabbing mechanism, wherein the first walking shaft is fixedly connected to the frame, the first walking shaft is connected to the roller, the roller moves horizontally along the cloth guide groove on the first walking shaft, and the grabbing mechanism is used to grab the edge of the cloth; A sewing mechanism is arranged on the frame and horizontally arranged below the cloth guide groove, and is used for sewing new cloth and old cloth; The sewing mechanism includes a relative needle mechanism and a rotary hook mechanism, and the frames located on both sides of the cloth guide groove are respectively provided with second traveling shafts, and the second traveling shafts on both sides are relatively horizontally arranged; The needle mechanism is connected to the second travel shaft on one side, and the rotary shuttle mechanism is connected to the second travel shaft on the other side; through the synchronization mechanism, the needle mechanism and the rotary shuttle mechanism perform synchronous horizontal movement along the direction of the fabric guide groove on the second travel shaft; the relative distance between the needle mechanism and the rotary shuttle mechanism can be adjusted; The clamping mechanism is arranged on the frame and located below the cloth guiding groove, and is used for tightening the naturally drooping cloth. The clamping mechanism includes a clamping assembly, a third movable assembly and a second connecting assembly, wherein the clamping assembly and the third movable assembly are connected through the second connecting assembly, and the third movable assembly drives the second connecting assembly and then drives the clamping assembly connected to the second connecting assembly to perform linear reciprocating motion.

2. The automatic cloth joining device according to claim 1 is characterized in that: A partition plate is provided in the fabric guiding groove, and the partition plate divides the fabric guiding groove into a first fabric guiding groove and a second fabric guiding groove; The fabric guiding groove moves inwardly to close or outwardly to open.

3. The automatic cloth joining device according to claim 2, characterized in that: The flattening mechanism comprises a flattening assembly, a U-shaped clamp and a first traveling shaft; The first traveling shafts are respectively fixedly connected to the frames, the first traveling shafts are connected to the U-shaped clips, the U-shaped clips move horizontally along the fabric guide groove on the first traveling shafts, and the U-shaped clips drive the flattening assembly to move horizontally along the fabric guide groove; The flattening component is located in the space clamped by the U-shaped clamp, a baffle extends from the inner side of the U-shaped clamp, one end of the flattening component is connected to the U-shaped clamp, and the flattening component moves closer to or away from the baffle in the U-shaped clamp.

4. The automatic cloth joining device according to claim 3, characterized in that: The flattening component is fitted with the partition plate, and the flattening component and one side of the fabric guide groove form a notch of a first fabric guide groove with a V-shaped cross section, and the flattening component and the other side of the fabric guide groove form a notch of a second fabric guide groove with a V-shaped cross section.

5. An automatic cloth joining device according to any one of claims 1 to 4, characterized in that: The number of the flattening mechanisms is four, and two flattening mechanisms are respectively arranged on both sides of the fabric guiding groove.

6. The automatic cloth joining device according to claim 3, characterized in that: The flattening mechanism further comprises a sensor, which is arranged on the flattening component and is used for detecting the edge of the cloth.

7. The automatic cloth joining device according to claim 1, characterized in that: The gripping mechanism comprises a vacuum suction device.

8. The automatic cloth joining device according to claim 1, characterized in that: The rotary hook mechanism is also provided with a cutting mechanism for cutting excess fabric after sewing.

9. The automatic cloth joining device according to claim 1, characterized in that: The synchronization mechanism includes one or more of a synchronous belt mechanism, a screw mechanism, a linear motor or a rack.

10. The automatic cloth joining device according to claim 1, characterized in that: The clamping mechanism includes two clamping plates arranged opposite to each other, the clamping space between the two clamping plates corresponds to the fabric guide groove, the clamping plates move inward to clamp or move outward to loosen under the action of the power device, the clamping plates are connected to the third walking shaft, the third walking shaft is fixedly connected to the frame, and the clamping plates move on the third walking shaft away from or close to the fabric guide groove.

11. A shaping machine, characterized in that: It comprises the automatic cloth joining device as described in any one of claims 1-10.

12. A method for joining cloth, characterized in that: The automatic cloth joining device according to any one of claims 1 to 10 is implemented, comprising the following steps: Flatten the edges of new and old fabrics; Grab the edges of new and old fabrics; Align the beginning of the new cloth with the end of the old cloth; Clamping the first position of the new cloth and the old cloth and moving them a first predetermined distance; Clamping the new cloth and the old cloth at the second position, so that the new cloth and the old cloth are attached to each other in the area between the first position and the second position; The new cloth and the old cloth in the area between the first position and the second position are sewn together.

13. A method for joining cloth according to claim 12, characterized in that: The following steps are also included: The clamping of the new cloth and the old cloth at the second position is released, and the second predetermined distance is moved to clamp the new cloth and the old cloth at the third position, and the new cloth and the old cloth in the area between the second position and the third position are sewn.

14. A cloth joining method according to claim 12 or 13, characterized in that: The method also includes a cutting step, wherein the cutting step cuts off excess parts of the new cloth and the old cloth after sewing.

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