A multifunctional double-needle chain machine for curtain processing

Abstract

The present invention discloses a multifunctional double-needle chain sewing machine for curtain processing. The present invention provides a transmission belt in conjunction with a double-needle chain sewing machine head. The double-needle chain sewing machine head is used for sewing the edges of the curtains. During the sewing process, the curtains can be placed on the transmission belt and cooperate with the double-needle chain sewing machine head to achieve automatic loading. The actual splicing edge alignment mechanism can facilitate the positioning and alignment of the edges of the double-layer curtains, and can improve the splicing accuracy of the double-layer curtains with the double-needle chain sewing machine head, thereby improving the splicing quality of the curtains. The provision of an edge trimming mechanism can trim the edges of the curtain fabric before sewing, thereby improving the quality. The provision of a clamping member can clamp and fix the ends of the sewn edges of the curtains after the two layers of curtains are placed. During the curtain sewing process, the clamping member is pulled to slide along with the sliding mechanism. The clamping member provides a certain pulling force, so that the curtain edges remain straight during the sewing process. The provision of a pull cylinder for conveying the edge strip facilitates edge banding at the sewing position of the curtains.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing machines, in particular to the technical field of a multifunctional double-needle chain sewing machine for curtain processing. Background Art

[0002] Double-needle chain sewing machines are often used for sewing fabrics. In the sewing of curtains, it is necessary to sew multiple layers of fabric, and it is also necessary to serge the edges of the fabric. The existing double-needle chain sewing machines are less efficient, so there is a need for a double-needle chain sewing machine that integrates the conveying, edging and sewing of multiple layers of fabric. Among them, the Chinese utility model patent with application number CN202110199185.3 proposes a sewing machine, in particular, a double-needle chain machine for curtain processing, comprising a double-needle chain machine body, a hemming strip conveying device is provided on one side of the double-needle chain machine body, and a post-tension splicing and edging device is provided on the other side of the hemming strip conveying device. The hemming strip conveying device includes a pull cylinder, and a cloth guide clamp is provided on the pull cylinder. The cloth guide clamp faces the double-needle chain machine body and corresponds to the needle position of the double-needle chain machine body. The post-tension splicing and edging device includes a first plate, a second plate and a third plate. The third plate is provided with a limiting column that passes through the first plate and the second plate, and the limiting column corresponds to the position of the cloth guide clamp. The double-needle chain sewing machine, the hemming strip conveying device, and the post-tension splicing and alignment device are arranged in sequence and in corresponding positions. Once the edges of the fabric are aligned, the hemming strip is immediately wrapped around the edge of the fabric via the cloth guide clamp on the pull cylinder and sewn by the double-needle chain sewing machine, greatly improving work efficiency. However, the double-needle chain sewing machine with this mechanism is still relatively simple in structure, with a low degree of automation and high labor intensity. It still relies heavily on manpower and has low work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a multifunctional double-needle chain machine for curtain processing, which can improve the sewing efficiency and sewing quality of curtains.

[0004] To achieve the above-mentioned purpose, the present invention proposes a multifunctional double-needle chain machine for curtain processing, comprising a frame, a conveyor belt is horizontally provided on the upper side of the frame, a sewing mechanism is provided on the side of the output end of the conveyor belt, the sewing mechanism comprises a side frame provided on the side of the frame, a double-needle chain sewing machine head is provided on the upper end of the side frame, the sewing part of the double-needle chain sewing machine head is provided on the side close to the output end of the conveyor belt, a curtain feeding platform is provided on one side of the frame close to the side frame, and the upper side of the curtain feeding platform is connected to the The upper end surface of the conveyor belt is flush or nearly flush, and a clamping member for clamping the edge of the curtain is provided on the curtain feeding platform. A sliding mechanism for fixing the clamping member is provided on the curtain feeding platform. The sliding mechanism is arranged relatively parallel to the conveyor belt. A splicing and aligning mechanism for positioning and aligning the edges of the upper and lower layers of curtain fabrics is provided between the double-needle chain sewing machine head on the upper side of the side frame and the curtain feeding platform. A trimming mechanism for cutting the edge of the curtain fabric is provided between the splicing and aligning mechanism and the double-needle chain sewing machine head.

[0005] Preferably, the sliding mechanism includes a slide rail arranged transversely in the curtain feeding platform, the slide rail is arranged relatively parallel to the conveyor belt, a slider is slidably provided on the slide rail, and the clamping member is fixedly connected to the slider.

[0006] Preferably, the clamping member includes a lower clamping plate and a corresponding upper clamping plate arranged on the upper side of the lower clamping plate, the curtain feeding platform is provided with an open groove arranged relatively parallel to the conveyor belt, and a clamping plate driving cylinder is provided vertically upward on the slider, the lower clamping plate is fixedly connected to the slider through the open groove, and the upper clamping plate is fixedly connected to the cylinder arm of the clamping plate driving cylinder through the open groove.

[0007] Preferably, a directional slide rail and a directional slider that cooperate with each other are provided between the upper clamping plate and the lower clamping plate on a side away from the conveyor belt.

[0008] Preferably, the curtain feeding platform is provided with an annular belt arranged relatively parallel to the slide rail, and pulleys for fixing the annular belt are respectively provided at both ends of the annular belt, and a belt drive motor for driving the rotation thereof is provided on any of the pulleys, and the slider is fixedly connected to a point on the annular belt.

[0009] Preferably, the trimming mechanism includes a disc-shaped cutter and a cutter motor fixedly connected to the cutter for driving the cutter to rotate, the cutter is arranged relatively parallel to the conveyor belt, and the trimming mechanism also includes a dust collector, the dust collector input port is arranged at the cutter, and the other end of the dust collector is provided with a connection part that can be used to connect to a dust collection device.

[0010] Preferably, the splicing opposite edge mechanism includes a first plate, a second plate and a third plate arranged in sequence from bottom to top, one end of the third plate is hingedly connected to one end of the first plate, the second plate is arranged between the third plate and the first plate, a lower curtain positioning channel for the curtain to pass through is provided on the side away from the hinged connection position between the first plate and the second plate, an upper curtain positioning channel for the curtain to pass through is provided between the second plate and the third plate, an adjusting device for adjusting the gap between the lower curtain positioning channel and the upper curtain positioning channel is provided between the first plate, the second plate and the third plate, the adjusting device includes an inner adjusting rod, a first rod sleeve and a second rod sleeve, the inner adjusting rod passes through the second plate and the third plate The three plates are in contact with the first plate, and the second plate is provided with a first rod sleeve that can cooperate with the first rod sleeve. The inner adjusting rod surface is provided with an adjusting rod external thread, and the first rod sleeve is provided with a first rod sleeve threaded hole that meshes with the external thread. The third plate is provided with a second rod sleeve that can cooperate with the first rod sleeve, and the outer surface of the first rod sleeve is provided with a first rod sleeve external thread, and the second rod sleeve is provided with a second rod sleeve internal threaded hole that meshes with the first rod sleeve external thread. The outer wall of the second rod sleeve is provided with a second rod sleeve external thread, and several locking nuts are provided on the second rod sleeve external thread. The splicing side-to-side mechanism also includes a side-to-side mechanism transverse cylinder fixedly connected to the first plate body, which can drive the first plate body to translate away from or close to the conveyor belt side.

[0011] Preferably, a threaded column is vertically provided on the first plate body, passing through the second plate body and the third plate body, the second plate body is provided with a first through hole that cooperates with the threaded column and allows the threaded column to pass through, the third plate body is provided with a second through hole that cooperates with the threaded column and allows the threaded column to pass through, the diameter of the second through hole is larger than the first through hole, and the threaded column is sleeved with a first spring that can pass through the second through hole and cooperate with the second plate body and a second spring that can cooperate with the third plate body, a limit stop column is vertically provided upward in the middle of the first plate body, and the second plate body and the third plate body are both provided with through holes through which the limit stop column can pass.

[0012] Preferably, a first air outlet for blowing air toward the lower curtain positioning channel is provided on the first plate body near the lower curtain positioning channel, a first air duct connected to the first air outlet is provided in the first plate body, and a first air inlet connected thereto is provided at the other end of the first air duct; a second air outlet for blowing air toward the upper curtain positioning channel is provided on the third plate body near the upper curtain positioning channel, a second air duct connected to the second air outlet is provided in the third plate body, and a second air inlet connected thereto is provided at the other end of the second air duct.

[0013] Preferably, a pull cylinder for conveying the hemming strip is provided between the double-needle chain stitch sewing machine head and the trimming mechanism.

[0014] The beneficial effects of the multifunctional double-needle chain sewing machine for curtain processing of the present invention are as follows: the present invention sets a conveyor belt to cooperate with a double-needle chain sewing machine head, and the double-needle chain sewing machine head is used for sewing the edges of the curtains. During the sewing process, the curtains can be placed on the conveyor belt and cooperate with the double-needle chain sewing machine head to realize automatic loading. The actual splicing edge alignment mechanism can facilitate the positioning and alignment of the edges of the double-layer curtains, and is convenient for improving the splicing accuracy of the double-layer curtains with the double-needle chain sewing machine head, thereby improving the splicing quality of the curtains. The provision of a trimming mechanism can trim the edges of the curtain fabric before sewing, thereby improving the quality. The provision of a clamping member can clamp and fix the ends of the sewn edges of the curtains after the two layers of curtains are placed. During the curtain sewing process, the clamping member is pulled to slide along with the sliding mechanism, and the clamping member provides a certain pulling force, so that the curtain edges remain straight during the sewing process. The provision of a pull cylinder for conveying the hemming strip facilitates hemming the sewing position of the curtains.

[0015] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a single-line multi-station forming device for shelf profiles of the present invention;

[0017] Figure 2 This is a schematic top view of the structure of a single-line multi-station forming device for shelf profiles of the present invention;

[0018] Figure 3 This is a schematic diagram of the side internal structure of a single-line multi-station forming device for shelf profiles of the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the trimming mechanism of a single-line multi-station forming device for shelf profiles of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the splicing and edge-matching mechanism of a single-line multi-station forming device for shelf profiles of the present invention;

[0021] Figure 6 This is a schematic diagram of the main structure of the splicing and edge-matching mechanism of a single-line multi-station forming device for shelf profiles of the present invention;

[0022] Figure 7 This is a schematic diagram of the top view of the splicing and matching mechanism of a single-line multi-station forming device for shelf profiles of the present invention;

[0023] Figure 8 yes Figure 7 Schematic diagram of the AA cross-section structure. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0026] Example 1:

[0027] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8The present invention relates to a multifunctional double-needle chain machine for curtain processing, comprising a frame 1, a conveyor belt 2 being laterally provided on the upper side of the frame 1, a sewing mechanism being provided on the side of the output end of the conveyor belt 2, the sewing mechanism comprising a side frame 3 provided on the side of the frame 1, a double-needle chain sewing machine head 4 being provided on the upper end of the side frame 3, the sewing part of the double-needle chain sewing machine head 4 being provided on the side close to the output end of the conveyor belt 2, a curtain feeding platform 5 being provided on the side of the frame 1 close to the side frame 3, the upper side of the curtain feeding platform 5 being connected to the conveyor belt 2 The upper end surface is flush or nearly flush, and a clamping member 6 for clamping the edge of the curtain is provided on the curtain feeding platform 5. A sliding mechanism 7 for fixing the clamping member 6 is provided on the curtain feeding platform 5. The sliding mechanism 7 is arranged relatively parallel to the conveyor belt 2. A splicing and aligning mechanism 8 for positioning and aligning the edges of the upper and lower layers of curtain fabrics is provided between the double-needle chain sewing machine head 4 on the upper side of the side frame 3 and the curtain feeding platform 5. A trimming mechanism 9 for cutting the edge of the curtain fabric is provided between the splicing and aligning mechanism 8 and the double-needle chain sewing machine head 4. This embodiment utilizes a conveyor belt 2 in conjunction with a double-needle chain sewing machine head 4, which is used to sew the edges of curtains. During the sewing process, the curtains can be placed on the conveyor belt 2 and cooperate with the double-needle chain sewing machine head 4 to achieve automatic material loading. A stitching edge alignment mechanism 8 facilitates the positioning and alignment of the edges of the double-layer curtains, facilitating the stitching accuracy and quality of the double-layer curtains with the double-needle chain sewing machine head 4. A trimming mechanism 9 is provided to trim the edges of the curtain fabric before stitching, improving quality. A clamping member 6 is provided to secure the ends of the curtain edges after the two layers of curtains are placed. During the sewing process, the clamping member 6 is pulled and slides along with the sliding mechanism 7, providing a certain amount of tension to keep the curtain edges straight during the stitching process.

[0028] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The sliding mechanism 7 includes a slide rail 71 arranged horizontally in the curtain feeding platform 5, the slide rail 71 is arranged relatively parallel to the conveyor belt 2, a slider 72 is slidably provided on the slide rail 71, and the clamping member 6 is fixedly connected to the slider 72.

[0029] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8The clamping member 6 includes a lower clamping plate 61 and a corresponding upper clamping plate 62 located above the lower clamping plate 61. The curtain feeding platform 5 is provided with an open slot 51 arranged parallel to the conveyor belt 2. A clamping plate driving cylinder 63 is vertically upwardly provided on the slider 72. The lower clamping plate 61 is fixedly connected to the slider 72 through the open slot 51, and the upper clamping plate 62 is fixedly connected to the cylinder arm of the clamping plate driving cylinder 63 through the open slot 51. The clamping plate driving cylinder 63 drives the upper and lower clamping plates 62 and 61 to open and close, making control more convenient and clamping more stable and secure.

[0030] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 A directional slide rail 64 and a directional slider 65 that cooperate with each other are provided between the upper clamping plate 62 and the lower clamping plate 61 on the side away from the conveyor belt 2.

[0031] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 An endless belt 73 is provided within the curtain feeding platform 5 and is arranged parallel to the slide rail 71. Pulleys 74 are provided at each end of the endless belt 73 to secure it. A belt drive motor 75 is provided on each pulley 74 to drive its rotation. The slider 72 is fixedly connected to a point on the endless belt 73. The drive motor 75 drives the endless belt 73 to operate synchronously with the conveyor belt 2, allowing the clamping member 6 to consistently straighten the sewn edge of the curtain.

[0032] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The trimming mechanism 9 includes a disc-shaped cutter 91 and a cutter motor 92 fixedly connected to the cutter 91 for driving the cutter 91 to rotate. The cutter 91 is arranged relatively parallel to the conveyor belt 2. The trimming mechanism 9 also includes a dust collection cylinder 93. The input port of the dust collection cylinder 93 is provided at the cutter 91. The other end of the dust collection cylinder 93 is provided with a connection portion that can be used to connect to a dust collection device.

[0033] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , the splicing edge mechanism 8 includes a first plate 81, a second plate 82 and a third plate 83 arranged in sequence from bottom to top, one end of the third plate 83 is hingedly connected to one end of the first plate 81, the second plate 82 is arranged between the third plate 83 and the first plate 81, a lower curtain positioning channel for curtains to pass through is provided on the side away from the hinged connection position between the first plate 81 and the second plate 82, an upper curtain positioning channel for curtains to pass through is provided between the second plate 82 and the third plate 83, an adjusting device 87 for adjusting the gap between the first plate 81, the second plate 82 and the third plate 83 is provided, the adjusting device 87 includes an inner adjusting rod 871, a first rod sleeve 872, and a second rod sleeve 873, the inner adjusting rod 871 passes through the second plate 82 and the third plate The body 83 is in contact with the first plate body 81, and the second plate body 82 is provided with a first rod sleeve 872 that can cooperate with the first rod sleeve 872. The surface of the inner adjusting rod 871 is provided with an adjusting rod external thread, and the first rod sleeve 872 is provided with a first rod sleeve threaded hole that engages with the external thread. The third plate body 83 is provided with a second rod sleeve 873 that can cooperate with the first rod sleeve 872. The outer surface of the first rod sleeve 872 is provided with a first rod sleeve external thread, and the second rod sleeve 873 is provided with a second rod sleeve internal threaded hole that engages with the first rod sleeve external thread. The outer wall of the second rod sleeve 873 is provided with a second rod sleeve external thread, and a number of locking nuts 874 are provided on the second rod sleeve external thread. The splicing side-to-side mechanism 8 also includes a side-to-side mechanism transverse movement cylinder 88 that is fixedly connected to the first plate body 81 and can drive the first plate body 81 to move horizontally away from or close to the conveyor belt 2 side. The two pieces of fabric to be spliced ​​are placed in the lower curtain positioning channel and the lower curtain positioning channel, respectively, and aligned with the limit stop 89 to achieve the desired edge positioning of the two pieces of fabric. The side-aligning mechanism's lateral movement cylinder 88 facilitates the lateral movement of the splicing side-aligning mechanism 8 to adjust its position. By adjusting the inner adjustment rod 871, the gap in the lower curtain positioning channel can be adjusted by aligning it with the internal threaded hole of the first rod sleeve 872. By adjusting the second rod sleeve 873, the gap in the upper curtain positioning channel can be adjusted by aligning it with the threaded surface of the first rod sleeve 872, making gap adjustment more convenient.

[0034] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The first plate body 81 is vertically provided with a threaded column 84 that passes through the second plate body 82 and the third plate body 83, and the second plate body 82 is provided with a first through hole 821 that cooperates with the threaded column 84 and allows the threaded column 84 to pass through. The third plate body 83 is provided with a second through hole 831 that cooperates with the threaded column 84 and allows the threaded column 84 to pass through. The diameter of the second through hole 831 is larger than that of the first through hole 821. The threaded column 84 is sleeved with a first spring 85 that can pass through the second through hole 831 and cooperate with the second plate body 82 and a second spring 86 that can cooperate with the third plate body 83. A limit stop column 89 is vertically upwardly provided in the middle part of the first plate body 81, and the second plate body 82 and the third plate body 83 are both provided with through holes for the limit stop column 89 to pass through.

[0035] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 A first air outlet 811 for blowing air toward the lower curtain positioning channel is provided on the first plate 81 near the lower curtain positioning channel. A first air channel connected to the first air outlet 811 is provided within the first plate 81, and a first air inlet 813 is provided at the other end of the first air channel. A second air outlet 832 for blowing air toward the upper curtain positioning channel is provided on the third plate 83 near the upper curtain positioning channel. A second air channel connected to the second air outlet 832 is provided within the third plate 83, and a second air inlet 834 is provided at the other end of the second air channel. The first air outlet 811 and the second air outlet 832 are respectively provided to blow air into the lower curtain positioning channel and the upper curtain positioning channel, thereby reducing friction between the fabric and the first plate 1, the second plate 82, and the third plate 3, ensuring smooth fabric transportation.

[0036] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 A pull cylinder 10 for conveying the edge strip is provided between the double-needle chain stitch sewing machine head 4 and the edge trimming mechanism 9.

[0037] Working process of the present invention:

[0038] The multifunctional double-needle chain sewing machine for curtain processing of the present invention is used to place the two pieces of fabric to be spliced ​​in the lower curtain positioning channel and the lower curtain positioning channel respectively during operation, and fit with the limit stop column 89 to achieve the convenient edge positioning of the two pieces of fabric, and place the seam position at the seam position of the double-needle chain sewing machine head 4. The clamping member 6 can clamp and fix the end of the sewn edge of the curtain after the two layers of curtains are placed. During the curtain sewing process, the clamping member 6 is pulled to slide along with the sliding mechanism 7, and the clamping member 6 provides a certain pulling force. , so that the edge of the curtain remains straight during the sewing process. The conveyor belt 2 cooperates with the double-needle chain sewing machine head 4, which is used to sew the edge of the curtain. During the sewing process, the curtain can be placed on the conveyor belt 2 and cooperate with the double-needle chain sewing machine head 4 to realize automatic loading. The edges of the upper and lower layers of curtain fabrics are first cut off by the trimming mechanism 9 to remove excess wool and fabric, and the edges are cut flat. Then, they pass through the pull tube 10, which transports the edging strip to the curtain sewing position and is sewn by the double-needle chain sewing machine head 4.

[0039] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A multifunctional double-needle chain machine for curtain processing, comprising a frame (1), a transmission belt (2) being laterally provided on the upper side of the frame (1), and a sewing mechanism being provided on the side of the output end of the transmission belt (2), characterized in that: The sewing mechanism comprises a side frame (3) arranged on the side of the frame (1), a double-needle chain sewing machine head (4) is provided on the upper end of the side frame (3), a sewing portion of the double-needle chain sewing machine head (4) is arranged on the side close to the output end of the conveyor belt (2), a curtain feeding platform (5) is provided on the side of the frame (1) close to the side frame (3), the upper side of the curtain feeding platform (5) is flush with or nearly flush with the upper end surface of the conveyor belt (2), a clamping member (6) for clamping the edge of the curtain is provided on the curtain feeding platform (5), a sliding mechanism (7) for fixing the clamping member (6) is provided on the curtain feeding platform (5), and the sliding mechanism (7) is aligned with the conveyor belt (2 ) are arranged in parallel with each other, a splicing and aligning mechanism (8) for aligning the edges of the upper and lower layers of curtain fabrics is provided between the double-needle chain sewing machine head (4) on the side frame (3) and the curtain feeding platform (5), a trimming mechanism (9) for cutting the edges of the curtain fabrics is provided between the splicing and aligning mechanism (8) and the double-needle chain sewing machine head (4), the splicing and aligning mechanism (8) comprises a first plate (81), a second plate (82) and a third plate (83) arranged in sequence from bottom to top, one end of the third plate (83) is hingedly connected to one end of the first plate (81), the second plate (82) is arranged between the third plate (83) and the first plate (81), the first plate ( A lower curtain positioning channel for curtains to pass through is provided on a side away from the hinged connection position between the first plate (81) and the second plate (82), and an upper curtain positioning channel for curtains to pass through is provided between the second plate (82) and the third plate (83). An adjusting device (87) for adjusting the gap between the lower curtain positioning channel and the upper curtain positioning channel is provided between the first plate (81), the second plate (82), and the third plate (83). The adjusting device (87) includes an inner adjusting rod (871), a first rod sleeve (872), and a second rod sleeve (873). The inner adjusting rod (871) passes through the second plate (82), the third plate (83), and is connected to the first plate (81). Interference fit, the second plate body (82) is provided with a first rod sleeve (872) that matches the first rod sleeve (872), the surface of the inner adjustment rod (871) is provided with an adjustment rod external thread, the first rod sleeve (872) is provided with a first rod sleeve threaded hole that meshes with the external thread, the third plate body (83) is provided with a second rod sleeve (873) that matches the first rod sleeve (872), the outer surface of the first rod sleeve (872) is provided with a first rod sleeve external thread, the second rod sleeve (873) is provided with a second rod sleeve internal threaded hole that meshes with the first rod sleeve external thread, the outer wall of the second rod sleeve (873) is provided with a second rod sleeve external thread, and the second rod sleeve external thread is provided with a plurality of locking nuts (874),The first plate (81) is vertically provided with a threaded column (84) that passes through the second plate (82) and the third plate (83); the second plate (82) is provided with a first through hole (821) that cooperates with the threaded column (84) and allows the threaded column (84) to pass through; the third plate (83) is provided with a second through hole (831) that cooperates with the threaded column (84) and allows the threaded column (84) to pass through; the diameter of the second through hole (831) is larger than that of the first through hole (821); the threaded column (84) is sleeved with a first spring (85) that passes through the second through hole (831) and contacts the second plate (82); and a second spring (86) that contacts the third plate (83).

2. A multifunctional double-needle chain machine for curtain processing according to claim 1, characterized in that: The sliding mechanism (7) comprises a slide rail (71) arranged transversely in the curtain feeding platform (5), the slide rail (71) and the conveyor belt (2) are arranged relatively parallel, a slider (72) is slidably provided on the slide rail (71), and the clamping member (6) is fixedly connected to the slider (72).

3. A multifunctional double-needle chain machine for curtain processing according to claim 2, characterized in that: The clamping member (6) includes a lower clamping plate (61) and a corresponding upper clamping plate (62) arranged on the upper side of the lower clamping plate (61); the curtain feeding platform (5) is provided with an open slot (51) arranged relatively parallel to the conveyor belt (2); a clamping plate driving cylinder (63) is vertically upwardly provided on the slider (72); the lower clamping plate (61) is fixedly connected to the slider (72) through the open slot (51); and the upper clamping plate (62) is fixedly connected to the cylinder arm of the clamping plate driving cylinder (63) through the open slot (51).

4. A multifunctional double-needle chain machine for curtain processing according to claim 3, characterized in that: A directional slide rail (64) and a directional slider (65) that cooperate with each other are provided between the upper clamping plate (62) and the lower clamping plate (61) on a side away from the conveyor belt (2).

5. A multifunctional double-needle chain machine for curtain processing according to claim 3, characterized in that: An annular belt (73) arranged relatively parallel to the slide rail (71) is provided in the curtain feeding platform (5), and pulleys (74) for fixing the annular belt (73) are provided at both ends of the annular belt (73), and a belt drive motor for driving the pulley (74) to rotate is provided on any of the pulleys (74), and the slider (72) is fixedly connected to a point on the annular belt (73).

6. A multifunctional double-needle chain machine for curtain processing according to claim 1, characterized in that: The trimming mechanism (9) comprises a disc-shaped cutter (91) and a cutter motor (92) fixedly connected to the cutter (91) for driving the cutter (91) to rotate. The cutter (91) and the conveyor belt (2) are arranged relatively parallel. The trimming mechanism (9) further comprises a dust collection cylinder (93). The input port of the dust collection cylinder (93) is arranged at the cutter (91). The other end of the dust collection cylinder (93) is provided with a connection portion for connecting to a dust collection device.

7. The multifunctional double-needle chain machine for curtain processing according to claim 1, characterized in that: The second plate (82) is provided with a first rod sleeve (872) that cooperates with the first rod sleeve (872), and a limit stop column (89) is provided vertically upward in the middle of the first plate (81). The second plate (82) and the third plate (83) are both provided with through holes for the limit stop column (89) to pass through. The splicing side-to-side mechanism (8) also includes a side-to-side mechanism transverse cylinder (88) fixedly connected to the first plate (81) and driving the first plate (81) to translate away from or toward the side of the conveyor belt (2).

8. The multifunctional double-needle chain machine for curtain processing according to claim 1, characterized in that: A first air outlet (811) for blowing air toward the lower curtain positioning channel is provided on the first plate (81) near the lower curtain positioning channel, a first air channel connected to the first air outlet (811) is provided in the first plate (81), and a first air inlet (813) connected thereto is provided at the other end of the first air channel; a second air outlet (832) for blowing air toward the upper curtain positioning channel is provided on the third plate (83) near the upper curtain positioning channel, a second air channel connected to the second air outlet (832) is provided in the third plate (83), and a second air inlet (834) connected thereto is provided at the other end of the second air channel.

9. The multifunctional double-needle chain machine for curtain processing according to claim 1, characterized in that: A pull cylinder (10) for conveying the hemming strip is provided between the double-needle chain sewing machine head (4) and the edge trimming mechanism (9).

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