Automatic feeding sewing machine

Abstract

The utility model relates to the technical field of sewing machines, in particular to an automatic feeding sewing machine which comprises a top plate, a sewing table and a sewing machine assembly are arranged at the top of the top plate, an automatic feeding assembly is arranged at the top of the top plate and close to the sewing table, an ironing adjusting assembly is arranged at the top of the automatic feeding assembly, and a moving adjusting assembly is arranged at the bottom of the top plate. The automatic feeding assembly comprises a motor, the output end of the motor is in transmission connection with a winding roller, a first limiting roller set is arranged at the position, close to the winding roller, of the top plate, an ironing box is arranged at the position, close to the sewing table, of the top plate, a supporting roller and an ironing roller are arranged in the ironing box, a second limiting roller set is further arranged in the ironing box, and a wetting structure is further arranged on the ironing box. The automatic feeding sewing machine solves the technical problems that when an existing automatic feeding sewing machine conveys cloth to a sewing table to be sewn, wrinkles possibly appear on the cloth, the wrinkles cannot be completely eliminated even if the wrinkles are tensioned through a rotating roller, the sewing effect is directly affected, and the cloth is possibly scrapped.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an automatic feeding sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so as to interweave or sew together one or more layers of sewing materials. The stitches sewn by the sewing machine are not only neat, beautiful, flat and firm, but also have a fast sewing speed and are easy to use. Therefore, it is widely used in the sewing industry.

[0003] An automatic feeding sewing machine with the Chinese patent publication number CN220887937U discloses an automatic feeding sewing machine, which includes two bases. The top of one of the bases is fixedly connected with two symmetrically arranged transmission bins by screws. Feeding ports and discharging ports are respectively arranged on both sides of the transmission bin. The top of one of the bases is fixedly connected with a workbench by screws. The top of the workbench is fixedly connected with a support frame by screws. A motor is installed inside the support frame. The output end of the motor is connected with a coaxial rotating shaft through a coupling. A roller shaft and a wheel shaft are respectively rotatably installed inside the support frame. Through the setting of structures such as a driving bevel gear and a driven bevel gear, turning the knob drives the rotating rod to rotate, and the rotating rod drives the threaded rod to rotate, thereby driving the up and down movement of the sleeve, realizing the fixation of the device, making the device more stable during operation. The setting of the brake wheel makes the device more convenient to move, and the storage box is more convenient for storage, and the overall practicality is higher.

[0004] At present, in the process of using the automatic feeding sewing machine, it is gradually found that there are still the following defects:

[0005] (1) When the current automatic feeding sewing machine transports the fabric to the sewing table for sewing, the fabric may wrinkle, and it cannot be completely eliminated even by tightening with a rotating rod, which will directly affect the sewing effect and may even cause the fabric to be scrapped.

[0006] (2) Most sewing machines are provided with universal wheels at the bottom for easy movement. However, during operation, the sewing machine will cause the universal wheels to move due to vibration, making the structure of the sewing machine very unstable, which will in turn affect the normal operation of the sewing machine and may even cause the sewing machine to break the needle. Summary of the Utility Model

[0007] In order to overcome the defects of the prior art pointed out above, the inventor of the present invention has conducted in-depth research and completed the present utility model after a large amount of creative labor.

[0008] Specifically, the technical problem to be solved by the present utility model is to provide an automatic feeding sewing machine, so as to solve the technical problem that when the existing automatic feeding sewing machine transports the fabric to the sewing table for sewing, the fabric may have wrinkles, and the wrinkles cannot be completely eliminated even by tightening with the rotating roller, which will directly affect the sewing effect and may also cause the fabric to be scrapped.

[0009] To solve the above technical problems, the present utility model provides the following technical solutions:

[0010] An automatic feeding sewing machine, comprising a top plate, a sewing table is provided on the top of the top plate and a sewing machine assembly corresponding to the sewing table, an automatic feeding assembly is provided on the top of the top plate and close to the sewing table, an ironing and adjusting assembly is provided on the top of the automatic feeding assembly, and a moving and adjusting assembly is provided on the bottom of the top plate;

[0011] The automatic feeding assembly includes a motor, the output end of the motor is drivingly connected to a winding roller, a first limiting roller group is provided on the top plate and close to the winding roller, an ironing box is provided on the top plate and close to the sewing table, a supporting roller and an ironing roller corresponding to the supporting roller are provided inside the ironing box, a second limiting roller group is further provided inside the ironing box, the second limiting roller group is correspondingly arranged with the supporting roller and the ironing roller, a wetting structure is further provided on the ironing box, a feeding port is opened on one side of the ironing box, and a discharging port is opened on the other side of the ironing box.

[0012] As an improved technical solution, wherein: an ironing chamber and a wetting chamber are opened inside the ironing box, the ironing chamber and the wetting chamber are separated by a partition board, and a through hole for the fabric to pass through is provided on the partition board, the supporting roller and the ironing roller are arranged in the ironing chamber, and the second limiting roller group is arranged in the wetting chamber;

[0013] A plurality of fixing plates for installing the winding roller and the first limiting roller group are provided on the top of the top plate, and the motor is arranged on one side of the fixing plate.

[0014] As an improved technical solution, wherein: the wetting structure includes a water tank, a water pump is provided on one side of the water tank, the output end of the water pump is connected with a connecting pipe, the end of the connecting pipe far away from the water pump extends into the ironing box and is provided with an atomizer, and a plurality of atomizing nozzles are provided at the bottom of the atomizer.

[0015] As an improved technical solution, wherein: the ironing adjustment assembly includes a sliding shaft, the sliding shafts are respectively arranged at both ends of the ironing roller, the ironing box is symmetrically provided with sliding grooves, the sliding shafts are slidably connected with the sliding grooves, the sliding shafts are rotatably connected with a U-shaped plate, a heater is arranged on the U-shaped plate, the heater is connected to the heating wire inside the ironing roller, a threaded hole is arranged at one end of the U-shaped plate away from the ironing roller, the threaded hole is threadedly connected with a lead screw, one end of the lead screw is rotatably installed on the ironing box, and the other end is provided with a turntable.

[0016] As an improved technical solution, wherein: an installation plate is arranged at the top of the ironing box, and the lead screw is rotatably connected with the installation plate.

[0017] As an improved technical solution, wherein: the moving adjustment assembly includes a plurality of vertical blocks, one ends of the plurality of vertical blocks are connected to the top plate, and the other ends are connected with a bottom plate, the water tank is arranged on the bottom plate, a double-headed motor is arranged on the bottom plate, the output end of the double-headed motor is drivingly connected with a rotating shaft, a gear set is arranged at one end of the rotating shaft away from the double-headed motor, a threaded rod is connected to the top of the gear set, the threaded rod is threadedly connected with a U-shaped movable plate, and a universal wheel is arranged at the bottom end of the U-shaped movable plate.

[0018] As an improved technical solution, wherein: four storage grooves are formed at the bottom of the bottom plate, four guiding holes are formed at the top of the bottom plate, the guiding holes communicate with the storage grooves, the guiding holes are slidably connected with the U-shaped movable plate, a cavity is formed at the bottom of the bottom plate, the double-headed motor is installed inside the cavity, and the threaded rod and the rotating shaft are respectively rotatably connected with the bottom plate.

[0019] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0020] 1. In the present utility model, after the cloth is atomized and sprayed with water through the humidifying structure, the cloth is ironed by the ironing roller to ensure the smoothness of the cloth surface. Then, the motor drives the winding roller to rotate, and the winding roller drives the cloth to pass through the first limiting roller group and the second limiting roller group for automatic feeding operation. The cloth with water is ironed by the ironing roller, which avoids the cloth from wrinkling, does not affect the subsequent sewing effect, and also avoids the scrapping of the cloth.

[0021] 2. In the present utility model, the turntable drives the lead screw to rotate, the lead screw drives the U-shaped plate to move up and down, and the U-shaped plate drives the ironing roller to move up and down along the sliding groove through the sliding shaft, thereby changing the distance between the ironing roller and the supporting roller, so as to iron cloths with different thicknesses, greatly improving the applicability of the device.

[0022] 3. In this utility model, a double-headed motor drives the rotation of the shafts on both sides. The shafts drive the rotation of the threaded rods through a gear set. The threaded rods drive the universal wheels to be received into the receiving grooves along the guiding holes through a U-shaped movable plate until the bottom plate contacts the ground, making the device more stable when the sewing machine is working, thus not affecting the normal operation of the sewing machine and avoiding the occurrence of broken needles in the sewing machine. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0024] Figure 1 It is a schematic diagram of the overall structure of an automatic feeding sewing machine of this utility model.

[0025] Figure 2 It is another schematic diagram of the overall structure of an automatic feeding sewing machine of this utility model.

[0026] Figure 3 It is a schematic diagram of the structure of the automatic feeding component of an automatic feeding sewing machine of this utility model.

[0027] Figure 4 It is a schematic diagram of the structure of the ironing and adjustment component of an automatic feeding sewing machine of this utility model.

[0028] Figure 5 It is a schematic cross-sectional view of the moving and adjustment component of an automatic feeding sewing machine of this utility model.

[0029] Figure 6 It is a schematic cross-sectional view of an automatic feeding sewing machine of this utility model.

[0030] Description of the Reference Numerals:

[0031] 1. Top plate; 2. Sewing table; 3. Sewing machine assembly; 4. Automatic feeding assembly; 41. Motor; 42. Rewinding roller; 43. First limiting roller group; 44. Ironing box; 45. Supporting roller; 46. Ironing roller; 47. Second limiting roller group; 48. Feeding port; 49. Moistening structure; 491. Water tank; 492. Water pump; 493. Connecting pipe; 494. Atomizer; 495. Atomizing nozzle; 410. Discharge port; 411. Ironing chamber; 412. Moistening chamber; 413. Fixed plate; 5. Ironing adjustment assembly; 51. Sliding shaft; 52. Chute; 53. U-shaped plate; 54. Heater; 55. Threaded hole; 56. Lead screw; 57. Turntable; 58. Mounting plate; 6. Moving adjustment assembly; 61. Vertical block; 62. Base plate; 63. Double-headed motor; 64. Rotating shaft; 65. Gear set; 66. Threaded rod; 67. U-shaped movable plate; 68. Universal wheel; 69. Storage groove; 610. Guide hole; 611. Cavity. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0035] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] Such as Figure 1and Figure 6 As shown in FIGS. Figure 6 and , this embodiment provides an automatic feeding sewing machine, which includes a top plate 1. A sewing table is provided on the top of the top plate 1, and a sewing machine assembly 3 is provided corresponding to the sewing table 2. An automatic feeding assembly 4 is provided on the top of the top plate 1 and near the sewing table 2. An ironing and adjusting assembly 5 is provided on the top of the automatic feeding assembly 4. A moving and adjusting assembly 6 is provided at the bottom of the top plate 1;

[0037] The automatic feeding assembly 4 includes a motor 41. The output end of the motor 41 is drivingly connected to a winding roller 42. A first limiting roller group 43 is provided on the top plate 1 and near the winding roller 42. An ironing box 44 is provided on the top plate 1 and near the sewing table 2. A support roller 45 and an ironing roller 46 corresponding to the support roller 45 are provided inside the ironing box 44. A second limiting roller group 47 is provided inside the ironing box 44. The second limiting roller group 47 is provided corresponding to the support roller 45 and the ironing roller 46. A humidifying structure 49 is further provided on the ironing box 44. A feeding port 48 is opened on one side of the ironing box 44, and a discharging port 410 is opened on the other side of the ironing box 44. Both the first limiting roller group 43 and the support roller 45 are rotatable, and the ironing roller 46 and the second limiting roller group 47 are also rotatable. After atomizing and spraying water on the fabric through the humidifying structure 49, the fabric is ironed by the ironing roller 46 to ensure the smoothness of the fabric surface. Then, the motor 41 drives the winding roller 42 to rotate, and the winding roller 42 drives the fabric to pass through the first limiting roller group 43 and the second limiting roller group 47 to perform automatic feeding operation on the sewing machine. The ironing roller 46 irons the fabric with water on it, avoiding wrinkles on the fabric.

[0038] As Figure 1 and Figure 3 As shown in FIGS. Figure 1 and Figure 3 , an ironing chamber 411 and a humidifying chamber 412 are opened inside the ironing box 44. The ironing chamber 411 and the humidifying chamber 412 are separated by a partition, and through holes for the fabric to pass through are provided on the partition. The support roller 45 and the ironing roller 46 are arranged in the ironing chamber 411, and the second limiting roller group 47 is arranged in the humidifying chamber 412. A plurality of fixing plates 413 for installing the winding roller 42 and the first limiting roller group 43 are provided on the top of the top plate 1. The motor 41 is arranged on one side of the fixing plate 413. By separating the ironing and humidifying through the ironing chamber 411 and the humidifying chamber 412, the interference between ironing and humidifying is avoided.

[0039] As Figure 3As shown, the wetting structure 49 includes a water tank 491. A water pump 492 is provided on one side of the water tank 491. The output end of the water pump 492 is connected to a connecting pipe 493. The end of the connecting pipe 493 away from the water pump 492 extends into the ironing box 44 and is equipped with an atomizer 494. Several atomizing nozzles 495 are provided at the bottom of the atomizer 494. The water in the water tank 491 is pumped by the water pump 492 through the connecting pipe 493 to the atomizer 494. The water is atomized by the atomizer 494 and then sprayed out through several atomizing nozzles 495, so that the surface of the fabric remains wet and the fabric can be smoother during subsequent ironing.

[0040] As Figure 1 , Figure 3 and Figure 4 Collectively shown as, the ironing adjustment assembly 5 includes sliding shafts 51. There are two sliding shafts 51, which are respectively arranged at both ends of the ironing roller 46. Sliding grooves 52 are symmetrically formed on the ironing box 44. The sliding shafts 51 are slidably connected to the sliding grooves 52. The sliding shafts 51 are rotatably connected to a U-shaped plate 53. A heater 54 is provided on the U-shaped plate 53. The heater 54 is connected to the heating wire inside the ironing roller 46. A threaded hole 55 is provided at the end of the U-shaped plate 53 away from the ironing roller 46. The threaded hole 55 is threadedly connected to a lead screw 56. One end of the lead screw 56 is rotatably installed on the ironing box 44, and the other end is provided with a turntable 57. The ironing roller 46 is heated by the heater 54. The lead screw 56 is rotated by driving the turntable 57. The lead screw 56 drives the U-shaped plate 53 to move up and down. The U-shaped plate 53 drives the ironing roller 46 to move up and down along the sliding groove 52 through the sliding shaft 51, thereby changing the distance between the ironing roller 46 and the support roller 45, so that fabrics of different thicknesses can be ironed.

[0041] As Figure 3 and Figure 4 Collectively shown as, an installation plate 58 is provided on the top of the ironing box 44. The lead screw 56 is rotatably connected to the installation plate 58. At the same time, the lead screw 56 is rotatably connected to the ironing box 44. The installation plate 58 plays a role in supporting and assisting the rotation of the lead screw 56.

[0042] As Figure 1 , Figure 5 and Figure 6 Collectively shown as, the moving adjustment assembly 6 includes several vertical blocks 61. One end of several vertical blocks 61 is connected to the top plate 1, and the other end is connected to a bottom plate 62. The water tank 491 is arranged on the top of the bottom plate 62. A double-headed motor 63 is provided inside the bottom plate 62. The output end of the double-headed motor 63 is drivingly connected to a rotating shaft 64. A gear set 65 is provided at the end of the rotating shaft 64 away from the double-headed motor 63. A threaded rod 66 is connected to the top of the gear set 65. The threaded rod 66 is threadedly connected to a U-shaped movable plate 67. A universal wheel 68 is provided at the bottom end of the U-shaped movable plate 67.

[0043] The two-headed motor 63 drives the rotation of the two side rotating shafts 64. The rotating shafts 64 drive the rotation of the threaded rods 66 through the gear sets 65. The threaded rods 66 drive the universal wheels 68 to be received into the receiving grooves 69 along the guiding holes 610 through the U-shaped movable plates 67 until the bottom plate 62 contacts the ground, making the device more stable during the operation of the sewing machine, and thus not affecting the normal operation of the sewing machine.

[0044] As Figure 5 and Figure 6 As shown together, four receiving grooves 69 are formed at the bottom of the bottom plate 62, four guiding holes 610 are formed at the top of the bottom plate 62, the guiding holes 610 communicate with the receiving grooves 69, the guiding holes 610 are slidably connected with the U-shaped movable plates 67, a cavity 611 is formed at the bottom of the bottom plate 62, the two-headed motor 63 is installed inside the cavity 611, the threaded rods 66 and the rotating shafts 64 are respectively rotatably connected with the bottom plate 62, and the guiding holes 610 play a guiding role for the U-shaped movable plates 67.

[0045] During use, the staff passes the fabric through the feeding port 48 on the ironing box 44, passes through the second limiting roller group 47, the supporting roller 45 and the ironing roller 46 and then passes out from the discharging port 410, then passes through the sewing table 2 and the first limiting roller group 43 and finally reaches the winding roller 42. Then, the motor 41 is started to drive the rotation of the winding roller 42. The winding roller 42 drives the fabric to feed the sewing table 2. Then, the fabric on the sewing table 2 is sewn by the sewing machine assembly 3. During feeding, the water pump 492 is started first. The water pump 492 sends the water in the water tank 491 to the atomizer 494 through the connecting pipe 493. The water is atomized by the atomizer 494 and then sprayed out through a plurality of atomizing nozzles 495, so that the surface of the fabric remains moist. After the fabric is moistened, it passes through the ironing chamber 411. The ironing roller 46 is heated by the heater 54, and the ironing roller 46 irons the fabric, avoiding wrinkles on the fabric and not affecting the subsequent sewing effect. At the same time, it also avoids the scrapping of the fabric. When using different fabrics, the staff rotates the turntable 57, drives the rotation of the lead screw 56. The lead screw 56 drives the U-shaped plate 53 to move up and down. The U-shaped plate 53 drives the ironing roller 46 to move up and down along the sliding shaft 51 along the sliding groove 52, thereby changing the distance between the ironing roller 46 and the supporting roller 45, so as to iron fabrics of different thicknesses, greatly improving the applicability of the device. When the sewing machine is working, by starting the two-headed motor 63, the two-headed motor 63 drives the rotation of the two side rotating shafts 64. The rotating shafts 64 drive the rotation of the threaded rods 66 through the gear sets 65. The threaded rods 66 drive the universal wheels 68 to be received into the receiving grooves 69 along the guiding holes 610 through the U-shaped movable plates 67 until the bottom plate 62 contacts the ground, making the device more stable during the operation of the sewing machine, and thus not affecting the normal operation of the sewing machine. When movement is needed, the universal wheels 68 can be extended from the receiving grooves 69 by reverse operation to move the sewing machine.

[0046] It should be understood that the use of these embodiments is only for illustrating the present utility model rather than intending to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. An automatic feeding sewing machine, characterized in that: The invention comprises a top plate (1), a sewing table (2) and a sewing machine assembly (3) arranged corresponding to the sewing table (2) are arranged on the top of the top plate (1), an automatic feeding assembly (4) is arranged on the top of the top plate (1) and close to the sewing table (2), an ironing adjustment assembly (5) is arranged on the top of the automatic feeding assembly (4), and a movable adjustment assembly (6) is arranged on the bottom of the top plate (1); The automatic feeding assembly (4) comprises a motor (41), the output end of the motor (41) being transmission-connected to a winding roller (42), a first limiting roller group (43) being provided on the top plate (1) and close to the winding roller (42), an ironing box (44) being provided on the top plate (1) and close to the sewing table (2), a supporting roller (45) and an ironing roller (46) being arranged corresponding to the supporting roller (45) being arranged inside the ironing box (44), a second limiting roller group (47) being arranged corresponding to the supporting roller (45) and the ironing roller (46), a wetting structure (49) being provided on the ironing box (44), a feeding port (48) being provided on one side of the ironing box (44), and a discharging port (410) being provided on the other side of the ironing box (44).

2. The automatic feeding sewing machine according to claim 1, characterized in that: The ironing box (44) is provided with an ironing chamber (411) and a moistening chamber (412) therein; the ironing chamber (411) and the moistening chamber (412) are separated by a partition, and the partition is provided with a through hole for fabric to pass through; the supporting roller (45) and the ironing roller (46) are arranged in the ironing chamber (411); and the second limiting roller group (47) is arranged in the moistening chamber (412); A plurality of fixing plates (413) for mounting the winding roller (42) and the first limiting roller group (43) are provided on the top of the top plate (1), and the motor (41) is provided on one side of the fixing plate (413).

3. The automatic feeding sewing machine according to claim 2, characterized in that: The wetting structure (49) comprises a water tank (491), a water pump (492) being provided on one side of the water tank (491), a connecting pipe (493) being connected to the output end of the water pump (492), an end of the connecting pipe (493) away from the water pump (492) extending into the ironing box (44) and being provided with an atomizer (494), a plurality of atomizing nozzles (495) being provided at the bottom of the atomizer (494).

4. The automatic feeding sewing machine according to claim 3, characterized in that: The ironing adjustment assembly (5) comprises a sliding shaft (51), the sliding shaft (51) being respectively arranged at two ends of the ironing roller (46), the ironing box (44) being symmetrically provided with sliding grooves (52), the sliding shaft (51) being slidably connected to the sliding grooves (52), the sliding shaft (51) being rotatably connected to a U-shaped plate (53), the U-shaped plate (53) being provided with a heater (54), the heater (54) being connected to a heating wire inside the ironing roller (46), a threaded hole (55) being arranged at one end of the U-shaped plate (53) away from the ironing roller (46), the threaded hole (55) being threadedly connected to a screw rod (56), one end of the screw rod (56) being rotatably mounted on the ironing box (44), and the other end being provided with a rotating disk (57).

5. The automatic feeding sewing machine according to claim 4, characterized in that: A mounting plate (58) is provided on the top of the ironing box (44), and the screw rod (56) is rotatably connected to the mounting plate (58).

6. The automatic feeding sewing machine according to claim 5, characterized in that: The movable adjustment assembly (6) comprises a plurality of vertical blocks (61), one end of each of the vertical blocks (61) is connected to the top plate (1), and the other end is connected to the bottom plate (62). The water tank (491) is arranged on the bottom plate (62), and a double-headed motor (63) is arranged on the bottom plate (62). The output end of the double-headed motor (63) is connected to a rotating shaft (64) through a transmission. The rotating shaft (64) is provided with a gear set (65) at one end away from the double-headed motor (63). The top of the gear set (65) is connected to a threaded rod (66), and the threaded rod (66) is threadedly connected to a U-shaped movable plate (67). The bottom end of the U-shaped movable plate (67) is provided with a universal wheel (68).

7. An automatic feeding sewing machine according to claim 6, characterized in that: The bottom of the bottom plate (62) is provided with four receiving grooves (69), the top of the bottom plate (62) is provided with four guide holes (610), the guide holes (610) are connected with the receiving grooves (69), the guide holes (610) are slidably connected with the U-shaped movable plate (67), the bottom of the bottom plate (62) is provided with a cavity (611), the double-headed motor (63) is installed inside the cavity (611), and the threaded rod (66) and the rotating shaft (64) are respectively rotatably connected with the bottom plate (62).

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