An automatic feeding seat cushion sewing device

Abstract

This utility model discloses an automatic feeding seat cushion sewing device, belonging to the field of sewing machine technology. Its key technical features include a sewing table, with transmission bases fixedly connected to both the front and rear sides of the sewing table. Reel-up and unreel-down reels are rotatably connected to the sides of the two transmission bases away from the sewing table. An elastic buffer mechanism is movably connected to the top of the sewing table, and a dynamic support mechanism is movably connected to the top of the elastic buffer mechanism. This device utilizes a Z-shaped tension support surface to achieve continuous fabric transmission and sewing without manual handling or smoothing. Furthermore, the contact area and stress can be changed by adjusting the height of the guide rollers and the protrusion degree of the contact rollers. This solves the problems of easy wrinkling and uneven tension in fabric transmission caused by manual labor or a single pressure roller in traditional equipment. It can also flexibly adapt to the transmission characteristics of different materials such as fabrics and leather, improving multi-material adaptability and operational continuity. The elastic buffer structure cushions the sewing process, preventing damage.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to an automatic feeding seat cushion sewing device. Background Technology

[0002] Traditional seat cushion sewing relies heavily on manual feeding, which has problems such as low efficiency, high labor intensity, and sewing accuracy being affected by the operator's experience. Especially for mass-produced seat cushions, manual feeding is prone to size deviations and irregular stitches, making it difficult to meet the requirements of consistency and efficiency for large-scale production. Therefore, it is necessary to develop an automatic feeding seat cushion sewing device.

[0003] In existing technologies, traditional sewing equipment relies on manual smoothing or single pressure roller feeding, which makes it difficult to adapt to the tension requirements of fabrics of different thicknesses and materials, resulting in wrinkles during transmission. Moreover, existing equipment is mostly designed for single fabrics, with fixed contact area and stress, and cannot flexibly match the transmission characteristics of different materials such as fabrics and leather, thus resulting in wrinkles, uneven tension, and poor adaptability to multiple materials.

[0004] Therefore, an automatic feeding seat cushion sewing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an automatic feeding seat cushion sewing device that can solve the problems of uneven folds and tension, as well as poor adaptability to multiple materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding seat cushion sewing device, including a sewing table, with a transmission base fixedly connected to the front and rear sides of the sewing table, and a take-up and untake-down reel rotatably connected to the side of the two transmission bases away from the sewing table, and an elastic buffer mechanism movably connected to the top of the sewing table, and a dynamic support mechanism movably connected to the top of the elastic buffer mechanism.

[0007] The dynamic support mechanism includes two sliding uprights movably connected to the top of the elastic buffer mechanism, and the two sliding uprights are respectively arranged on both sides of the top of the sewing table. The top of the elastic buffer mechanism is movably connected to a support upright, and the support upright is arranged on the opposite side of the two sliding uprights. A sliding block is slidably connected to the inner side of the sliding upright, and a guide roller is rotatably connected to the outer side of the sliding block. A support roller is rotatably connected to the inner side of the support upright, and a dynamic adapter component is movably connected to the inner side of the guide roller.

[0008] Preferably, the elastic buffer mechanism includes three hollow supports fixedly connected to the top of the sewing table, with an adjustable support slidably connected to the inner side of each hollow support, and two sliding uprights and a supporting upright respectively fixedly connected to the top of the adjustable support.

[0009] Preferably, a first telescopic support is fixedly connected to the top of the inner side of the adjusting support, a buffer plate is fixedly connected to the bottom of the first telescopic support, a second telescopic support is fixedly connected to the bottom of the buffer plate, the second telescopic support is fixedly connected to the bottom of the inner side of the hollow support, and a first compression spring is fixedly connected to the inner side of both the first telescopic support and the second telescopic support.

[0010] Preferably, two telescopic rods are fixedly connected to the top of the inner side of the adjusting support, and the two telescopic rods are respectively distributed on both sides of the inner side of the adjusting support. The two telescopic rods are fixedly connected to the bottom of the inner side of the hollow support. The outer side of the top of the two telescopic rods is rotatably connected to a telescopic pull rod, and the other end of the two telescopic pull rods is rotatably connected to both sides of the buffer plate. The outer side of the telescopic pull rod is fixedly connected to a buffer spring, and the inner side of the telescopic rod is fixedly connected to a second compression spring.

[0011] Preferably, the dynamic adaptation component includes a servo motor fixedly connected to the inner side of the guide roller, the output end of the servo motor being fixedly connected to a main shaft, a linkage ring frame being fixedly connected to the outer side of the main shaft, four linkage rods being rotatably connected to the outer side of the linkage ring frame, and the other ends of the four linkage rods being rotatably connected to a rotating bracket.

[0012] Preferably, four rotating brackets are slidably connected to the inner side of the guide roller and are evenly distributed around the guide roller. The inner side of each rotating bracket is rotatably connected to a contact roller. The bottom of the sliding block is fixedly connected to a first lifting rod, which is fixedly connected to the bottom of the inner side of the sliding frame.

[0013] Preferably, a sliding support plate is fixedly connected to the sewing table and the take-up and undo reel on opposite sides. The sliding support plate is fixedly connected to both sides of the top of the transmission base. A bearing block is slidably connected to the inner side of the sliding support plate. A transmission roller is rotatably connected to the opposite side of the two bearing blocks. A second lifting rod is fixedly connected to the bottom of the bearing block. The second lifting rod is fixedly connected to the bottom of the inner side of the sliding support plate.

[0014] Preferably, a sewing module is fixedly connected to the rear side of the sewing table.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up a dynamic support mechanism, this application can realize continuous fabric transmission and sewing without manual handling and smoothing by using a Z-shaped tension support surface. It can also change the contact area and stress by adjusting the height of the guide roller and the protrusion degree of the contact roller, thereby solving the problems of easy wrinkling and uneven tension in fabric transmission caused by traditional equipment relying on manual labor or a single pressure roller. It can also flexibly adapt to the transmission characteristics of different materials such as fabric and leather, improving multi-material adaptability and operation continuity.

[0017] 2. This application, by setting a dynamic buffer mechanism, can adjust the sliding fit between the support and the hollow support, combined with the first compression spring, the second compression spring and the telescopic rod, the buffer spring forms radial and oblique elastic buffer, which can contract and buffer when compressed and quickly return to its original position, avoiding damage to the fabric due to excessive pressure when sewing a tensioned oblique surface. It solves the problem of fabric damage caused by tension control when adapting to different fabrics in the aforementioned solution, and ensures the stability of the sewing operation. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the automatic feeding seat cushion sewing device of this utility model;

[0019] Figure 2 This is an overall structural diagram of the dynamic support mechanism of this utility model;

[0020] Figure 3 This is an overall structural diagram of the dynamic adaptation component of this utility model;

[0021] Figure 4 This is a planar structural diagram of the dynamic adaptation component of this utility model;

[0022] Figure 5 This is an overall structural diagram of the elastic buffer mechanism of this utility model.

[0023] In the diagram, 1. Sewing table; 2. Transmission base; 3. Winding reel; 4. Elastic buffer mechanism; 41. Hollowed-out support; 42. Adjustable support; 43. First telescopic support column; 44. Buffer plate; 45. Second telescopic support column; 46. First compression spring; 47. Telescopic rod; 48. Telescopic pull rod; 49. Buffer spring; 410. Second compression spring; 5. Dynamic support mechanism; 51. Sliding frame; 52. Support frame; 53. Sliding block; 54. Guide roller; 55. Support roller; 56. Dynamic adapter component; 56a. Servo motor; 56b. Main shaft; 56c. Linkage ring frame; 56d. Rotating bracket; 56e. Contact roller; 56f. First lifting rod; 56g. Linkage rod; 6. Sliding support plate; 7. Bearing block; 8. Transmission roller; 9. Second lifting rod; 10. Sewing module. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] An automatic feeding seat cushion sewing device includes a sewing table 1, with a transmission base 2 fixedly connected to the front and rear sides of the sewing table 1, and a take-up and untake-down reel 3 rotatably connected to the side of the two transmission bases 2 away from the sewing table 1. An elastic buffer mechanism 4 is movably connected to the top of the sewing table 1, and a dynamic support mechanism 5 is movably connected to the top of the elastic buffer mechanism 4.

[0027] The dynamic support mechanism 5 includes two sliding uprights 51 movably connected to the top of the elastic buffer mechanism 4, and the two sliding uprights 51 are respectively arranged on both sides of the top of the sewing table 1. The top of the elastic buffer mechanism 4 is movably connected to a support upright 52, and the support upright 52 is arranged on the opposite side of the two sliding uprights 51. A sliding block 53 is slidably connected to the inner side of the sliding upright 51, and a guide roller 54 is rotatably connected to the outer side of the sliding block 53. A support roller 55 is rotatably connected to the inner side of the support upright 52, and a dynamic adapter component 56 is movably connected to the inner side of the guide roller 54.

[0028] In this embodiment: When mass-producing cushion fabrics such as fabric and leather composite materials, the fabric is first unwound by the take-up and unwound reel 3 at the feeding end, and then transferred to the sewing area of ​​the sewing table 1 by the transfer roller 8 on the transfer base 2. The height of the transfer roller 8 can be adjusted by the first lifting rod 56f inside the sliding stand 51 to ensure that the fabric is taut and wrinkle-free. The guide rollers 54 on both sides of the sewing table 1 guide the fabric in and out, and the central support rod makes the fabric form a Z-shaped tension support surface. The sewing module 10 is used to sew on the two inclined surfaces to ensure continuity. The hollow guide roller 54 can be adapted to different fabrics by adjusting the contact area and method through the dynamic adaptation component 56.

[0029] Specifically, such as Figure 1 , Figure 5 As shown, the elastic buffer mechanism 4 includes three hollow supports 41 fixedly connected to the top of the sewing table 1. An adjustable support 42 is slidably connected to the inner side of the hollow support 41, and two sliding uprights 51 and a support upright 52 are fixedly connected to the top of the adjustable support 42 respectively.

[0030] Specifically, such as Figure 1 , Figure 5 As shown, a first telescopic support column 43 is fixedly connected to the top of the inner side of the adjusting support 42, a buffer plate 44 is fixedly connected to the bottom of the first telescopic support column 43, a second telescopic support column 45 is fixedly connected to the bottom of the buffer plate 44, the second telescopic support column 45 is fixedly connected to the bottom of the inner side of the hollow support 41, and a first compression spring 46 is fixedly connected to the inner side of both the first telescopic support column 43 and the second telescopic support column 45.

[0031] Specifically, such as Figure 1 , Figure 5As shown, two telescopic rods 47 are fixedly connected to the top of the inner side of the adjusting support 42, and the two telescopic rods 47 are respectively distributed on both sides of the inner side of the adjusting support 42. The two telescopic rods 47 are fixedly connected to the bottom of the inner side of the hollow support 41. The outer side of the top of the two telescopic rods 47 is rotatably connected to a telescopic pull rod 48, and the other end of the two telescopic pull rods 48 is rotatably connected to both sides of the buffer plate 44. The outer side of the telescopic pull rod 48 is fixedly connected to a buffer spring 49, and the inner side of the telescopic rod 47 is fixedly connected to a second compression spring 410.

[0032] In this embodiment: During sewing, to avoid damage to the fabric due to tensioned oblique sewing, the sliding support 51 of the guide roller 54 and support roller 55 and the adjusting support 42 at the bottom of the support support 52 will retract into the hollow support 41 when the pressure exceeds the limit. At this time, the vertical pressure is buffered by the first telescopic support 43, the buffer plate 44, the second telescopic support 45 and the first compression spring 46. At the same time, the telescopic rod 47, the telescopic pull rod 48, the second compression spring 410 and the buffer spring 49 will convert part of the pressure into a push force to form a radial and oblique elastic buffer, allowing the adjusting support 42 to slide slightly and quickly return to its original position without affecting the sewing operation.

[0033] Specifically, such as Figure 3 , Figure 4 As shown, the dynamic adaptation component 56 includes a servo motor 56a fixedly connected to the inner side of the guide roller 54. The output end of the servo motor 56a is fixedly connected to a main shaft 56b. A linkage ring frame 56c is fixedly connected to the outer side of the main shaft 56b. Four linkage rods 56g are rotatably connected to the outer side of the linkage ring frame 56c, and the other end of the four linkage rods 56g is rotatably connected to a rotating bracket 56d.

[0034] Specifically, such as Figure 3 , Figure 4 As shown, four rotating brackets 56d are slidably connected to the inner side of the guide roller 54 and are evenly distributed around the guide roller 54. A contact roller 56e is rotatably connected to the inner side of the rotating bracket 56d. A first lifting rod 56f is fixedly connected to the bottom of the sliding block 53. The first lifting rod 56f is fixedly connected to the bottom of the inner side of the sliding stand 51.

[0035] In this embodiment: by activating the first lifting rod 56f and adjusting the sliding block 53, the height of the guide roller 54 can be adjusted to maintain the tension of the processing surface. Activating the servo motor 56a inside the guide roller 54 can drive the main shaft 56b and the outer linkage ring frame 56c to rotate, causing the linkage rod 56g to move in and out of the rotating bracket 56d in conjunction with the rotation bracket 56d. This adjusts the protrusion degree of the contact rollers 56e inside the rotating bracket 56d. The protrusion of the four sets of contact rollers 56e can increase the fabric contact area and adjust the contact method. Moreover, the contact rollers 56e rotate with the fabric transmission, which can adapt to different sewing fabrics and reduce the risk of damage due to uneven synchronization.

[0036] Specifically, such as Figure 1 As shown, a sliding support plate 6 is fixedly connected to the opposite side of the sewing table 1 and the take-up and undo reel 3. The sliding support plate 6 is fixedly connected to both sides of the top of the transmission base 2. A bearing block 7 is slidably connected to the inner side of the sliding support plate 6. A transmission roller 8 is rotatably connected to the opposite side of the two bearing blocks 7. A second lifting rod 9 is fixedly connected to the bottom of the bearing block 7. The second lifting rod 9 is fixedly connected to the bottom of the inner side of the sliding support plate 6.

[0037] Specifically, such as Figure 1 As shown, a sewing module 10 is fixedly connected to the rear side of the sewing table 1.

[0038] In this embodiment, the height of the transmission roller 8 can be adjusted by the second lifting rod 9 inside the sliding support plate 6 to accommodate fabrics of different thicknesses and ensure that they are tensioned and transported without wrinkles. The sewing module 10 is used to perform sewing operations.

[0039] Working Principle: In the mass production of seat cushion fabrics, such as cloth and leather composite materials, the seat cushion fabrics need to be sewn first for subsequent seat cushion processing. First, the seat cushion fabric to be sewn is unwound from the feed end's take-up and unwound reel 3 and transferred to the sewing area of ​​the sewing table 1 via the transfer roller 8 on the transfer base 2. The height of the transfer roller 8 can be adjusted by raising and lowering the second lifting rod 9 inside the sliding support plate 6, thus ensuring tension during the transfer of fabrics of different thicknesses and preventing wrinkles. During automatic feeding via the transfer roller 8, to ensure processing continuity, the fabric is not fed into the sewing area and then re-enters the transfer module. Instead, it is guided into the sewing area by guides on both sides of the sewing table 1. Two sets of guide rollers 54 rotate out from the sewing table 1. A support rod, always higher than the guide rollers 54, is positioned at the center of the sewing table 1. The fabric forms a Z-shaped tension support surface on the sewing table 1 through the guide rollers 54 and the support rod. Even with the height difference between the guide rollers 54 and the support rollers 55, the fabric presents a bent support shape from bottom to top to bottom. In this state, sewing is performed on the two inclined surfaces through the sewing module 10, thus avoiding the need to remove the fabric, lay it flat, smooth it manually, and then sew it again. This further promotes continuous operation. The guide rollers 54 used for guidance are entirely hollow rollers. To adapt to different fabric thicknesses and materials, the guide rollers 54 can be adjusted to regulate their contact area and contact stress, among other things. This is achieved by starting the first... A lifting rod 56f can adjust the height of the guide roller 54 by adjusting the sliding block 53 to maintain the processing surface in a taut state. Next, by activating the servo motor 56a located inside the guide roller 54, the servo motor 56a drives the internal central shaft 56b, which runs through the entire guide roller 54, to rotate. This causes multiple sets of linkage rings 56c outside the shaft 56b to rotate. When the linkage rings 56c rotate, the linkage rods 56g connected at their four corners rotate accordingly, simultaneously linking the rotating brackets 56d at their other ends. This causes the rotating brackets 56d to move inward or outward simultaneously, thus adjusting the protrusion degree of the contact rollers 56e inside the rotating brackets 56d. When the four sets of contact rollers... When all 56e rollers extend, not only can the contact area of ​​the fabric be increased, but the contact method can also be adjusted. Furthermore, the contact rollers 56e rotate through fabric transmission, not self-driven, reducing the risk of damage caused by uneven synchronization. This achieves the effect of adapting to different sewing fabrics. Secondly, in the sewing process, to avoid fabric damage caused by sewing the tensioned inclined surface, adjustable supports 42 that can slide inside the hollow support 41 are respectively provided at the bottom of the sliding frame 51 and support frame 52 of the guide roller 54 and support roller 55. When the pressure exceeds a certain level, the adjustable support 42 will retract into the hollow support 41, simultaneously reducing the distance between the adjustable support 42 and the hollow support 41. At this time, the distance between the adjustable support 42 and the inner side of the hollow support 41...The buffer plate 44, which contacts the interior of the adjusting support 42 via the first telescopic support 43 and the inner wall of the hollow support 41 via the second telescopic support 45, will displace. Both the first telescopic support 43 and the second telescopic support 45 will retract and press against the first compression spring 46 on their inner walls, thus buffering the vertical pressure at the main pressure point. Furthermore, two sets of telescopic rods 47 are provided on both sides of the inner walls of the adjusting support 42 and the hollow support 41. The outer side of the retracted portion of the telescopic rod 47 is rotatably connected to the buffer plate 44 by a telescopic pull rod 48. The inner sides of the telescopic rods 47 and 48 are respectively connected to the second compression spring 410 and the buffer plate 44. Spring 49, therefore, when the aforementioned buffer plate 44 shifts and the distance between the adjusting support 42 and the hollow support 41 decreases, simultaneously achieves the compression and contraction of the telescopic rod 47 as the distance decreases, and when the buffer plate 44 shifts, it is pulled downward by the telescopic pull rod 48, converting part of the pressure into a push force generated by the rotation of the telescopic pull rod 48 and the stretching of the outer buffer spring 49, thus forming a radially coordinated oblique elastic buffer. This allows the adjusting support 42 to quickly return to its original position after a small sliding within the hollow support 41, avoiding interference with the sewing operation. In summary, this optimizes the fabric sewing stage of the automatic feeding cushion sewing device.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding cushion sewing device comprising a sewing table (1), characterized in that: The front and rear sides of the sewing table (1) are fixedly connected to transmission bases (2), and the two transmission bases (2) are rotatably connected to the side away from the sewing table (1) with a winding reel (3). The top of the sewing table (1) is movably connected to an elastic buffer mechanism (4), and the top of the elastic buffer mechanism (4) is movably connected to a dynamic support mechanism (5). The dynamic support mechanism (5) includes two sliding uprights (51) movably connected to the top of the elastic buffer mechanism (4), and the two sliding uprights (51) are respectively set on both sides of the top of the sewing table (1). The top of the elastic buffer mechanism (4) is movably connected to a support upright (52), and the support upright (52) is set on the opposite side of the two sliding uprights (51). The inner side of the sliding upright (51) is slidably connected to a sliding block (53), the outer side of the sliding block (53) is rotatably connected to a guide roller (54), the inner side of the support upright (52) is rotatably connected to a support roller (55), and the inner side of the guide roller (54) is movably connected to a dynamic adapter component (56).

2. The automatic feeding cushion sewing device according to claim 1, characterized in that: The elastic buffer mechanism (4) includes three hollow supports (41) fixedly connected to the top of the sewing table (1). The inner side of the hollow supports (41) is slidably connected to an adjusting support (42), and two sliding uprights (51) and a supporting upright (52) are fixedly connected to the top of the adjusting support (42).

3. The automatic feeding cushion sewing device according to claim 2, characterized in that: The top of the inner side of the adjusting support (42) is fixedly connected to a first telescopic support (43), the bottom of the first telescopic support (43) is fixedly connected to a buffer plate (44), the bottom of the buffer plate (44) is fixedly connected to a second telescopic support (45), the second telescopic support (45) is fixedly connected to the bottom of the inner side of the hollow support (41), and the inner sides of the first telescopic support (43) and the second telescopic support (45) are both fixedly connected to a first compression spring (46).

4. The automatic feeding cushion sewing device according to claim 3, characterized in that: Two telescopic rods (47) are fixedly connected to the top of the inner side of the adjusting support (42), and the two telescopic rods (47) are respectively distributed on both sides of the inner side of the adjusting support (42). The two telescopic rods (47) are fixedly connected to the bottom of the inner side of the hollow support (41). The outer side of the top of the two telescopic rods (47) is rotatably connected to a telescopic pull rod (48), and the other end of the two telescopic pull rods (48) is rotatably connected to both sides of the buffer plate (44). The outer side of the telescopic pull rod (48) is fixedly connected to a buffer spring (49), and the inner side of the telescopic rod (47) is fixedly connected to a second compression spring (410).

5. The automatic feeding cushion sewing device according to claim 1, characterized in that: The dynamic adaptation component (56) includes a servo motor (56a) fixedly connected to the inside of the guide roller (54). The output end of the servo motor (56a) is fixedly connected to a main shaft (56b). The outside of the main shaft (56b) is fixedly connected to a linkage ring frame (56c). The outside of the linkage ring frame (56c) is rotatably connected to four linkage rods (56g), and the other end of the four linkage rods (56g) is rotatably connected to a rotating bracket (56d).

6. The automatic feeding cushion sewing device according to claim 5, wherein: Four rotating brackets (56d) are slidably connected to the inner side of the guide roller (54) and are evenly distributed around the guide roller (54). The inner side of the rotating bracket (56d) is rotatably connected to a contact roller (56e). The bottom of the sliding block (53) is fixedly connected to a first lifting rod (56f), which is fixedly connected to the bottom of the inner side of the sliding stand (51).

7. The automatic feeding cushion sewing device according to claim 1, characterized in that: A sliding support plate (6) is fixedly connected to the opposite side of the sewing table (1) and the take-up and undo reel (3). The sliding support plate (6) is fixedly connected to both sides of the top of the transmission base (2). A bearing block (7) is slidably connected to the inner side of the sliding support plate (6). A transmission roller (8) is rotatably connected to the opposite side of the two bearing blocks (7). A second lifting rod (9) is fixedly connected to the bottom of the bearing block (7). The second lifting rod (9) is fixedly connected to the bottom of the inner side of the sliding support plate (6).

8. The automatic feeding seat cushion sewing device according to claim 1, characterized in that: A sewing module (10) is fixedly connected to the rear side of the sewing table (1).

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