Sewing machine capable of automatically feeding sewing products

Abstract

The utility model relates to the technical field of sewing machines, and discloses a sewing machine capable of automatically feeding sewing products, which comprises a platform and a sewing machine body arranged on the upper surface of the platform. A bottom groove and two sets of grooves are formed in the upper surface of the platform, and a driving assembly is arranged in the bottom groove; through cooperation of the driving assembly, the lifting assembly, the lower feeding assembly and the upper feeding assembly, the driving assembly synchronously drives the upper feeding assembly and the lower feeding assembly to rotate through a first chain wheel and a second chain wheel, and therefore the upper feeding assembly and the lower feeding assembly can convey fabric at a constant speed; and meanwhile, under the action of a second bevel gear, the rotating directions of a first chain wheel and a second chain wheel are placed first, so that the conveying directions of the upper feeding assembly and the lower feeding assembly are opposite, the fabric is clamped and conveyed under the action of a lifting assembly, the fabric with different thicknesses is conveyed conveniently, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a sewing machine that automatically feeds materials to sewn products. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, allowing one or more layers of fabric to interweave or sew together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong, and the sewing speed is fast and easy to use.

[0003] When sewing large areas and long pieces of fabric with existing sewing machines, the operator needs to push the fabric along the needle of the sewing machine head and let the machine sew the fabric. The operation is relatively slow and the speed is uneven, which affects the sewing effect and is not conducive to the operation of the user. Therefore, we need to propose a sewing machine that automatically feeds the sewing products. Utility Model Content

[0004] The purpose of this invention is to provide a sewing machine that automatically feeds sewn fabric. It uses a gear set to drive the feed roller, thereby facilitating uniform feeding of the sewn fabric and pressing the fabric during feeding, improving the stability of fabric conveying. At the same time, it is convenient to adjust the spacing of the feed roller, thus facilitating the conveying of fabrics of different thicknesses and expanding the applicability, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewing machine for automatically feeding sewn products, comprising:

[0006] The platform, and the sewing machine body mounted on the upper surface of the platform;

[0007] The upper surface of the platform is provided with a bottom groove and two sets of grooves. A drive component is provided in the bottom groove, and a lower feeding component for conveying the fabric is provided in each of the two sets of grooves. A lifting component is installed on the upper surface of the platform, and two sets of upper feeding components are symmetrically arranged on the lifting component. Both sets of upper feeding components and the two sets of lower feeding components are driven by the drive component.

[0008] The drive assembly includes a drive motor, a support plate, and a secondary rotating shaft. The output shaft of the drive motor is connected to a main rotating shaft. One end of the main rotating shaft is fixedly connected to a first bevel gear. A second bevel gear that meshes with the first bevel gear is rotatably mounted on the upper surface of the support plate. One end of the secondary rotating shaft is fixedly connected to a third bevel gear that meshes with the second bevel gear. The axes of the main rotating shaft and the secondary rotating shaft are both located on the same axis.

[0009] Preferably, the lower feeding assembly includes a lower feeding roller rotatably disposed in the groove, one end of the lower feeding roller is fixedly connected to a first connecting shaft passing through the groove, one end of the first connecting shaft is provided with a lower sprocket, and a lower chain is provided between the two sets of lower sprockets.

[0010] Preferably, a second sprocket is provided at one end of the rotating secondary shaft, and the lower chain drive is connected to the second sprocket. The second sprocket and the two sets of lower sprockets are all arranged on the same plane.

[0011] Preferably, the upper feeding assembly includes a fixed frame, an upper feeding roller is rotatably disposed within the fixed frame, one end of the upper feeding roller is fixedly connected to a second connecting shaft passing through the fixed frame, one end of the second connecting shaft is fixedly connected to an upper sprocket, and an upper chain is disposed between the two sets of upper sprockets.

[0012] Preferably, one end of the rotating spindle is fixedly connected to a first sprocket that is connected to the upper chain drive, and a limiting sprocket connected to the upper chain drive is rotatably provided on one side of the sewing machine body. The first sprocket, the two sets of upper sprockets and the limiting sprocket are all arranged on the same plane.

[0013] Preferably, the lifting assembly includes a positioning frame fixedly connected to the upper surface of the platform, a cylinder fixedly connected to the upper surface of the positioning frame, the telescopic end of the cylinder passing through the positioning frame and fixedly connected to a fixing beam, and the fixing frame fixedly connected to one side of the fixing beam.

[0014] Preferably, a stabilizing rod is fixedly connected to the upper surface of the fixed beam through the upper surface of the positioning frame, and an installation groove for installing the drive motor is provided on one side of the inner cavity of the bottom groove.

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

[0016] This utility model mainly utilizes the cooperation between a drive assembly, a lifting assembly, a lower feeding assembly, and an upper feeding assembly. The drive assembly uses a first sprocket and a second sprocket to synchronously drive the upper and lower feeding assemblies to rotate, thereby enabling the upper and lower feeding assemblies to convey the fabric at a uniform speed. At the same time, under the action of the second bevel gear, the rotation direction of the first and second sprockets is prioritized, thus making the conveying directions of the upper and lower feeding assemblies opposite. Under the action of the lifting assembly, the fabric is clamped and conveyed, facilitating the conveying of fabrics of different thicknesses and improving the applicability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the upper feeding component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the lower feeding assembly structure of this utility model.

[0020] In the diagram: 1. Platform; 11. Bottom groove; 12. Mounting groove; 13. Groove; 2. Sewing machine body; 3. Drive assembly; 31. Drive motor; 32. Rotating spindle; 33. First sprocket; 34. First bevel gear; 35. Support plate; 36. Second bevel gear; 37. Rotating secondary shaft; 38. Second sprocket; 39. Third bevel gear; 4. Lower feeding assembly; 41. Lower feeding roller; 42. First connecting shaft; 43. Lower sprocket; 44. Lower chain; 5. Upper feeding assembly; 51. Fixing frame; 52. Upper feeding roller; 53. Second connecting shaft; 54. Upper sprocket; 55. Upper chain; 6. Lifting assembly; 61. Positioning frame; 62. Cylinder; 63. Stabilizing bar; 64. Fixing beam; 7. Limiting sprocket. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a sewing machine for automatically feeding sewn products, comprising:

[0023] Platform 1, and sewing machine body 2 disposed on the upper surface of platform 1;

[0024] The upper surface of platform 1 is provided with a bottom groove 11 and two sets of grooves 13. A drive component 3 is provided in the bottom groove 11, and a lower feeding component 4 for conveying fabric is provided in each of the two sets of grooves 13. A lifting component 6 is installed on the upper surface of platform 1. Two sets of upper feeding components 5 are symmetrically arranged on the lifting component 6. The two sets of upper feeding components 5 and the two sets of lower feeding components 4 are all driven by the drive component 3.

[0025] The drive assembly 3 includes a drive motor 31, a support plate 35, and a secondary rotating shaft 37. The output shaft of the drive motor 31 is connected to a main rotating shaft 32. One end of the main rotating shaft 32 is fixedly connected to a first bevel gear 34. A second bevel gear 36 that meshes with the first bevel gear 34 is rotatably disposed on the upper surface of the support plate 35. One end of the secondary rotating shaft 37 is fixedly connected to a third bevel gear 39 that meshes with the second bevel gear 36. The axes of the main rotating shaft 32 and the secondary rotating shaft 37 are both located on the same axis.

[0026] The lower feeding assembly 4 includes a lower feeding roller 41 rotatably disposed in the groove 13. One end of the lower feeding roller 41 is fixedly connected to a first connecting shaft 42 that passes through the groove 13. One end of the first connecting shaft 42 is provided with a lower sprocket 43. A lower chain 44 is provided between the two sets of lower sprockets 43. The lower chain 44 facilitates the synchronous rotation of the two sets of lower sprockets 43, thereby driving the lower feeding roller 41 to rotate through the first connecting shaft 42, so as to convey the fabric.

[0027] A second sprocket 38 is provided at one end of the rotating secondary shaft 37. The lower chain 44 is driven to the second sprocket 38. The second sprocket 38 and the two sets of lower sprockets 43 are all set on the same plane. The lower chain 44 is driven to rotate by the second sprocket 38, so that the lower sprockets 43 and the second sprocket 38 rotate synchronously, thereby improving the synchronization.

[0028] The upper feeding assembly 5 includes a fixed frame 51, an upper feeding roller 52 is rotatably arranged inside the fixed frame 51, a second connecting shaft 53 is fixedly connected to one end of the upper feeding roller 52 and passes through the fixed frame 51, an upper sprocket 54 is fixedly connected to one end of the second connecting shaft 53, an upper chain 55 is arranged between the two sets of upper sprockets 54, the upper sprockets 54 are rotated synchronously by the upper chain 55, thereby causing the second connecting shaft 53 to drive the upper feeding roller 52 to rotate, so that the lifting assembly 6 can drive the upper feeding roller 52 to approach the lower feeding roller 41 to feed the fabric.

[0029] One end of the rotating main shaft 32 is fixedly connected to a first sprocket 33 that is driven by the upper chain 55. A limiting sprocket 7 that is driven by the upper chain 55 is rotatably provided on one side of the sewing machine body 2. The first sprocket 33, the two sets of upper sprockets 54 and the limiting sprocket 7 are all set on the same plane. The first sprocket 33 and the upper sprockets 54 can easily drive the two sets of upper sprockets 54 to rotate. At the same time, the limiting sprocket 7 can ensure the meshing stability of the upper sprockets 54 and the upper chain 55, and facilitate the meshing stability of the upper sprockets 54 and the upper chain 55 when the upper feeding component 5 is raised and lowered.

[0030] The lifting assembly 6 includes a positioning frame 61 fixedly connected to the upper surface of the platform 1. A cylinder 62 is fixedly connected to the upper surface of the positioning frame 61. The telescopic end of the cylinder 62 passes through the positioning frame 61 and is fixedly connected to a fixed beam 64. The fixed frame 51 is fixedly connected to one side of the fixed beam 64. The height of the fixed beam 64 can be easily adjusted by the cylinder 62, thereby facilitating the height adjustment of the upper feeding roller 52 and facilitating the feeding of fabrics of different thicknesses.

[0031] A stabilizing rod 63, which is fixedly connected to the upper surface of the fixed beam 64, runs through the upper surface of the positioning frame 61. A mounting groove 12 for the drive motor 31 is provided on one side of the inner cavity of the bottom groove 11. The stability of the lifting and lowering of the two sets of upper feeding components 5 is improved by the stabilizing rod 63.

[0032] In use, one end of the fabric passes through the gap between the upper feed roller 52 and the lower feed roller 41, thus being processed by the sewing machine body 2. When the fabric is continuously fed, the output shaft of the drive motor 31 drives the rotating main shaft 32 to rotate, thereby causing the first sprocket 33 to rotate with the first bevel gear 34. The first bevel gear 34 meshes with the second bevel gear 36, thereby causing the second bevel gear 36 to mesh with the third bevel gear 39, which in turn drives the second sprocket 38 on the rotating secondary shaft 37 to rotate. The first sprocket 33 drives the upper chain 55, while the second sprocket 38 drives the lower chain 44. The upper chain 55 drives the upper sprocket 54 to rotate clockwise, and the lower chain 44 drives the lower sprocket 43 to rotate counterclockwise. The cylinder 62 drives the fixed beam 64 to descend, thereby facilitating the upper feed roller 52 to approach the lower feed roller 41, thus facilitating the clamping of the fabric. This facilitates the feeding of fabrics of different thicknesses, improves the stability of fabric feeding, realizes automatic fabric feeding, and improves the efficiency of fabric processing.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing machine that automatically feeds sewn products, characterized in that, Include: Platform (1), and the sewing machine body (2) provided on the upper surface of the platform (1); The upper surface of the platform (1) is provided with a bottom groove (11) and two groups of grooves (13), the driving assembly (3) is arranged in the bottom groove (11), the lower feeding assembly (4) for feeding the fabric is arranged in the two groups of grooves (13), the lifting assembly (6) is arranged on the upper surface of the platform (1), two groups of upper feeding assemblies (5) are symmetrically arranged on the lifting assembly (6), and the two groups of upper feeding assemblies (5) and the two groups of lower feeding assemblies (4) are driven by the driving assembly (3). The driving assembly (3) comprises a driving motor (31), a supporting plate (35) and a rotating secondary shaft (37), the output shaft of the driving motor (31) is in transmission connection with a rotating main shaft (32), one end of the rotating main shaft (32) is fixedly connected with a first bevel gear (34), the upper surface of the supporting plate (35) is rotatably provided with a second bevel gear (36) engaged with the first bevel gear (34), one end of the rotating secondary shaft (37) is fixedly connected with a third bevel gear (39) engaged with the second bevel gear (36), and the shaft centers of the rotating main shaft (32) and the rotating secondary shaft (37) are arranged on the same axis.

2. The sewing machine of claim 1, wherein: The lower feeding assembly (4) comprises a lower feeding roller (41) rotatably arranged in the groove (13), one end of the lower feeding roller (41) is fixedly connected with a first connecting shaft (42) penetrating the groove (13), and one end of the first connecting shaft (42) is provided with a lower sprocket (43). Two groups of lower sprockets (43) are provided with a lower chain (44) therebetween.

3. A sewing machine for automatically feeding a seam product according to claim 2, characterized in that: One end of the rotating secondary shaft (37) is provided with a second sprocket (38), the lower chain (44) is in transmission connection with the second sprocket (38), and the second sprocket (38) and the two groups of lower sprockets (43) are arranged on the same plane.

4. The sewing machine of claim 3, wherein: The upper feeding assembly (5) comprises a fixed frame (51), the upper feeding roller (52) is rotatably arranged in the fixed frame (51), one end of the upper feeding roller (52) is fixedly connected with a second connecting shaft (53) penetrating the fixed frame (51), one end of the second connecting shaft (53) is fixedly connected with an upper sprocket (54), and two groups of upper sprockets (54) are provided with an upper chain (55) therebetween.

5. The sewing machine automatically feeding a seam product according to claim 4, characterized in that: One end of the rotating main shaft (32) is fixedly connected with a first sprocket (33) in transmission connection with the upper chain (55), one side of the sewing machine body (2) is rotatably provided with a limiting sprocket (7) in transmission connection with the upper chain (55), and the first sprocket (33), the two groups of upper sprockets (54) and the limiting sprocket (7) are arranged on the same plane.

6. The sewing machine automatically feeding a seam product according to claim 5, characterized in that: The lifting assembly (6) comprises a positioning frame (61) fixedly connected to the upper surface of the platform (1), the upper surface of the positioning frame (61) is fixedly connected with an air cylinder (62), the telescopic end of the air cylinder (62) penetrates the positioning frame (61) and is fixedly connected with a fixed beam (64), and the fixed frame (51) is fixedly connected to one side of the fixed beam (64).

7. A sewing machine for automatically feeding a seam product according to claim 6, characterized in that: The upper surface of the positioning frame (61) is provided with a stabilizing rod (63) that is fixedly connected to the upper surface of the fixed beam (64), and a mounting groove (12) for installing the drive motor (31) is provided on one side of the inner cavity of the bottom groove (11).

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