Auxiliary feeding mechanism of cylindrical sewing machine

Abstract

The utility model provides an auxiliary feeding mechanism of a cylinder type sewing machine, and belongs to the technical field of sewing machines. The problem that in the prior art, time and labor are wasted during feeding operation of a user is solved. The barrel type sewing machine comprises a machine head and a columnar machine base, the auxiliary feeding mechanism comprises a barrel-shaped outer cover which is rotatably arranged on the machine base in a sleeving mode, and a plurality of rolling pieces which can rotate relative to the machine base are arranged at the two ends of the machine base in the circumferential direction of the machine base respectively. The rolling pieces located at the end, connected with the machine head, of the machine base abut against the outer wall of the outer cover at the same time, and the rolling pieces located at the other end of the machine base abut against the inner wall of the outer cover at the same time. The feeding device has the advantage that the feeding operation of a user is more labor-saving and smooth.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines and relates to an auxiliary feeding mechanism of a cylinder-type sewing machine. Background Art

[0002] Cylinder-type sewing machines are generally used to sew luggage, handbags, sofas, tents, car seat cushions, shoes and other products. There is a cylindrical and horizontally arranged machine base under the head of the cylinder-type sewing machine. The machine base is used to place the fabric to be sewn. In order to make the sewing continuous, the user needs to manually pull and move the fabric during the sewing process. However, since the fabric to be sewn is generally put on the machine base, the length and thickness of the fabric to be sewn are long, which makes the user's feeding operation time-consuming and laborious. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems in the existing technology and propose an auxiliary feeding mechanism for a cylinder-type sewing machine. The technical problem to be solved by the present invention is how to make the feeding operation of the user more labor-saving and smooth.

[0004] The purpose of this utility model can be achieved through the following technical solutions:

[0005] An auxiliary feeding mechanism of a cylinder-type sewing machine, the cylinder-type sewing machine includes a machine head and a columnar machine base, characterized in that the auxiliary feeding mechanism includes a cylindrical outer cover rotatably mounted on the machine base, and a plurality of rolling members rotatable relative to the outer cover are respectively provided at both ends of the machine base along the circumference of the machine base, and the plurality of rolling members located at the end where the machine base is connected to the machine head simultaneously abut against the outer wall of the outer cover, and the plurality of rolling members located at the other end of the machine base simultaneously abut against the inner wall of the outer cover.

[0006] The auxiliary feeding mechanism of the cylinder-type sewing machine is achieved by installing a cylindrical outer cover on the machine base of the cylinder-type sewing machine and being rotatable relative to the outer cover. At the same time, a number of rolling elements are respectively provided along the circumference of the two ends of the machine base to provide internal and external support and assist in the rotation of the outer cover. When in use, the user can directly rotate the outer cover, so that the outer cover drives the fabric to be sewn on the outer cover to rotate synchronously, thereby making the user's feeding operation more labor-saving and smooth.

[0007] In the aforementioned auxiliary feed mechanism of a cylinder-type sewing machine, a plurality of fixed columns are fixedly disposed along the circumference of the machine base at each end. The length of the fixed columns aligns with the length of the machine base. The rolling elements are rotatably mounted on the fixed columns, and the machine base is provided with a plurality of clearance notches for mounting the rolling elements. The fixed columns facilitate the mounting of the rolling elements and support and assist the rotation of the rolling elements mounted thereon. The clearance notches allow the rolling elements mounted on the fixed columns to be better exposed, supporting and assisting the rotation of the outer cover.

[0008] In the auxiliary feeding mechanism of the cylinder-type sewing machine, the rolling element is a bearing or a roller. Both the bearing and the roller can play the role of supporting and assisting rotation. During use, the user can choose either one according to actual conditions.

[0009] In the aforementioned auxiliary feeding mechanism of a cylinder-type sewing machine, a motor is further provided on the machine base. The motor output shaft is arranged parallel to the outer cover and is provided with a driving gear on the output shaft. The outer cover is fixedly provided with a driven gear that meshes with the driving gear. The motor is provided on the machine base, and the driving gear on the motor output shaft drives the driven gear on the outer cover and the outer cover to rotate synchronously. Compared to manual operation, the feeding operation is more convenient, labor-saving, and smoother.

[0010] In the auxiliary feed mechanism of the cylinder-type sewing machine, the diameter of the driving gear is smaller than the diameter of the driven gear. By setting the diameter of the driving gear smaller than the diameter of the driven gear, a reduced transmission speed is achieved from the motor to the housing, and the torque of the housing is increased, thereby making the feeding operation more labor-saving and smooth.

[0011] Compared with the existing technology, the advantages of the auxiliary feeding mechanism of the present cylinder-type sewing machine are as follows: the auxiliary feeding mechanism of the present cylinder-type sewing machine is achieved by sleeved on the machine base of the cylinder-type sewing machine a cylindrical outer cover that can rotate relative to the machine base, and at the same time, a number of rolling members are respectively arranged along the circumference of the two ends of the machine base to provide internal and external support and rotation assistance to the outer cover. When in use, the user can directly rotate the outer cover, so that the outer cover drives the fabric to be sewn on the outer cover to rotate synchronously. A motor can also be arranged on the machine base, and the driving gear on the motor output shaft and the driven gear meshing with it drive the outer cover to rotate synchronously, making the user's feeding operation more labor-saving and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the auxiliary feeding mechanism of the cylinder-type sewing machine in Example 1.

[0013] Figure 2 It is an exploded view of the auxiliary feeding mechanism of the cylinder-type sewing machine in the first embodiment.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the auxiliary feeding mechanism of the cylinder-type sewing machine in the second embodiment.

[0015] In the figure, 1, machine head; 2, machine base; 2a, clearance gap; 3, outer cover; 4, rolling element; 5, fixing column; 6, motor; 7, driving gear; 8, driven gear. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] Example 1

[0018] An auxiliary feeding mechanism for a cylinder-type sewing machine, referring to Figure 1 and Figure 2 The cylinder-type sewing machine includes a machine head 1 and a columnar machine base 2. The auxiliary feeding mechanism includes a cylindrical outer cover 3 rotatably mounted on the machine base 2. Both ends of the machine base 2 are respectively provided with a plurality of rolling members 4 rotatable relative to the machine base 2 along the circumference of the machine base 2, and the plurality of rolling members 4 located at the end where the machine base 2 is connected to the machine head 1 simultaneously abut against the outer wall of the outer cover 3, and the plurality of rolling members 4 located at the other end of the machine base 2 simultaneously abut against the inner wall of the outer cover 3.

[0019] Specifically, the base 2 is circumferentially secured with a plurality of fixed posts 5 at each end. These posts extend in a direction aligned with the length of the base 2. The rolling elements 4 are rotatably mounted on these posts 5. The base 2 is provided with a plurality of recesses 2a for accommodating the rolling elements 4. These rolling elements 4 are preferably bearings or rollers, with bearings being preferred in this embodiment. During operation, the user can directly rotate the outer cover 3, causing it to rotate the fabric mounted thereon, thereby simplifying and facilitating the fabric feeding operation.

[0020] Example 2

[0021] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: Figure 3 The base 2 is also provided with a motor 6. The output shaft of the motor 6 is arranged parallel to the outer cover 3 and is provided with a driving gear 7 on the output shaft. The outer cover 3 is fixed with a driven gear 8 that meshes with the driving gear 7. In this embodiment, the diameter of the driving gear 7 is preferably smaller than the diameter of the driven gear 8. During use, the user only needs to start the motor 6, and the driving gear 7 provided on the output shaft of the motor 6 and the driven gear 8 meshing therewith drive the outer cover 3 to rotate synchronously, making the user's feeding operation more labor-saving and smooth.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An auxiliary feeding mechanism of a cylinder-type sewing machine, the cylinder-type sewing machine comprising a machine head (1) and a columnar machine base (2), characterized in that: The auxiliary feeding mechanism comprises a cylindrical outer cover (3) rotatably mounted on the machine base (2), and a plurality of rolling elements (4) rotatable relative to the machine base (2) are respectively provided at both ends of the machine base (2) along the circumference of the machine base (2), and the plurality of rolling elements (4) located at the end where the machine base (2) is connected to the machine head (1) simultaneously abut against the outer wall of the outer cover (3), and the plurality of rolling elements (4) located at the other end of the machine base (2) simultaneously abut against the inner wall of the outer cover (3).

2. The auxiliary feeding mechanism of a cylinder-type sewing machine according to claim 1, characterized in that: A plurality of fixed columns (5) are fixedly provided at both ends of the machine base (2) along its circumference, and the length extension direction of the fixed columns (5) is consistent with the length extension direction of the machine base (2). The rolling elements (4) are rotatably arranged on the fixed columns (5) one by one, and the machine base (2) is provided with a plurality of clearance notches (2a) for arranging the rolling elements (4).

3. The auxiliary feeding mechanism of a cylinder-type sewing machine according to claim 1, characterized in that: The rolling element (4) is a bearing or a roller.

4. The auxiliary feeding mechanism of a cylinder-type sewing machine according to claim 1, 2 or 3, characterized in that: A motor (6) is also provided on the machine base (2). The output shaft of the motor (6) is arranged parallel to the outer cover (3) and a driving gear (7) is provided on the output shaft. A driven gear (8) meshing with the driving gear (7) is fixedly provided on the outer cover (3).

5. The auxiliary feeding mechanism of a cylinder-type sewing machine according to claim 4, characterized in that: The diameter of the driving gear (7) is smaller than the diameter of the driven gear (8).

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