Sewing machine

Abstract

According to the technical scheme, the sewing machine comprises a machine head and a machine base, the machine head comprises an overhanging machine head body part, the overhanging end of the machine head body part is a machine head sewing end, and a sewing needle is arranged at the machine head sewing end; a machine head plane is limited by the extension direction of the machine head body part and the extension direction of the sewing needle; the machine base comprises a machine base base portion which is lower than the machine head body portion, the sewing end of the machine barrel extends to the position below the sewing end of the machine head from one side of the plane of the machine head in an overhanging mode, the machine base barrel is higher than the machine base base portion, and the overhanging end portion of the machine base barrel is the machine barrel sewing end. The sewing machine forms a hand space above the base part of the base through the base cylinder higher than the base part of the base. Due to the fact that the machine base cylinder is higher than the machine base base part, the machine base cylinder cannot interfere with the machine base base part when an operator operates with the right hand, elbow supporting can be provided by the machine base base part, and the comfort of sewing operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically to a sewing machine. Background Technology

[0002] Depending on the specific application, sewing machines are also divided into different types for different sub-fields. Figure 1 This diagram illustrates the overall structure of a sewing machine in the prior art. It includes a sewing head and a base. The sewing head plane is defined by the overhang direction of the sewing head and the movement direction of the needle. When the sewing machine is assembled, the sewing head plane is vertical or substantially vertical. The base has a base tube extending from one side of the sewing head plane toward the sewing head plane. The end of the tube extends below the needle and is equipped with components such as a rotary hook and feed dog that cooperate with the needle. For sewing stitch and operational considerations, the base tube is perpendicular to the sewing head plane. The entire base is arranged in the same plane; that is, the base tube and the main body of the base that fixes the base tube are located in the same plane.

[0003] This type of sewing machine is commonly used for sewing and finishing tubular products such as cup sleeves and cuffs. During operation, the operator stands on the machine base side of the machine head plane, places the tubular product to be finished around the machine base, aligns the two ends to be sewn together (the sides with the main thread) and pushes them to the end of the machine base to complete the sewing. This means the operator is outside the machine base and needs to use both hands to operate the main thread ends of the product on both sides of the machine base to be finished.

[0004] Since the machine base is located on the same plane, there is no height difference. Operators reported that the machine base restricts right-hand operation during sewing. Most of the time, the obstruction from the machine base makes operation uncomfortable and affects work performance. Utility Model Content

[0005] To address the problem that the layout of existing sewing machines is inconvenient for operators, this application provides a sewing machine.

[0006] The present invention provides a sewing machine, including a head and a base. The head includes an extended head body, one end of which is the sewing end, and a sewing needle is provided at the sewing end. The head plane is defined by the extension direction of the head body and the extension direction of the sewing needle.

[0007] The base includes a base portion located below the head body, a sewing end of the sewing tube extending from one side of the head plane to below the sewing end of the head, a base tube extending above the base portion, and the extended end of the base tube being the sewing end of the sewing tube.

[0008] Preferably, the base cylinder extends perpendicularly to the extension direction of the needle and extends below the sewing end of the machine head.

[0009] Preferably, the base cylinder extends perpendicularly to the plane of the sewing head and extends below the sewing end of the sewing head.

[0010] Preferably, the base includes a base connecting part, which connects the base cylinder root and the base.

[0011] Preferably, the base connection portion extends perpendicularly to the base base in the height direction to the root of the base cylinder.

[0012] Preferably, the base portion has a first base portion and a second base portion that are fixedly connected at an angle.

[0013] Preferably, the upper surface of the base is flush with the upper surface of the platform on which it is mounted.

[0014] Preferably, the base connection portion connects the root of the base cylinder to the end of the first base that is away from the second base;

[0015] The machine head has a machine head connecting part, which connects the root of the machine head body to the end of the second base that is away from the first base.

[0016] Preferably, the base connecting part is fixed perpendicular to the first base, and the head connecting part is fixed perpendicular to the second base.

[0017] Preferably, a rotary hook drive shaft and a wire-cutting drive shaft are coaxially sleeved inside the machine base cylinder; or, the machine base includes a wire-cutting power device, which is disposed inside the machine base connecting part and is drively connected to the wire-cutting drive shaft.

[0018] The sewing machine of this application forms a hand space above the base of the machine base by means of a base cylinder that extends above the base of the machine base. Because the base cylinder is higher than the base of the machine base, the operator will not interfere with the base of the machine base when operating with their right hand, and the base of the machine base can provide elbow support, thus improving the comfort of sewing operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the prior art of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the sewing machine of this utility model;

[0021] Figure 3 This is a schematic diagram of the sewing machine of this utility model installed on the table.

[0022] Figure 4 This is a schematic diagram of the internal structure of the machine base cylinder 21 in the sewing machine of this utility model.

[0023] In the picture:

[0024] 1: Machine head; 11: Machine head body; 111: Sewing end of machine head; 1111: Sewing needle; 12: Machine head connecting part; 2: Machine base; 21: Machine base cylinder; 211: Sewing end of machine cylinder; 212: Rotary hook drive shaft; 213: Thread cutting drive shaft; 214: Thread cutting power unit; 22: Machine base base; 221: First base; 222: Second base; 23: Machine base connecting part; 3: Table surface; G: Hand space; S: Machine head plane. Detailed Implementation

[0025] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. In this specification, the dimensions in the drawings do not represent actual size ratios. The drawings are only used to illustrate the relative positional and connection relationships between the components. Components with the same name or the same reference numerals represent similar or identical structures and are limited to illustrative purposes.

[0026] Figure 2 This is a schematic diagram of the sewing machine of this application, including a sewing head 1 and a base 2. The sewing head 1 has an overhanging head body 11, and the extended end of the head body 11 is the sewing end 111 of the head body 11. A sewing needle 1111 for sewing is provided at the sewing end 111. The extension direction of the head body 11 and the extension direction of the sewing needle 1111 define the head plane S. Normally, when the sewing machine is properly installed, the head plane S is a vertical plane and the sewing needle 1111 is vertical.

[0027] The machine base 2 has a base portion 22, which is lower than the machine head body 11. A machine base tube 21 extends above the base portion 22, with the extended end of the base tube 21 serving as the sewing end 211, located below the sewing end 111 of the machine head. The sewing end 211 is equipped with existing components such as a rotary hook and feed dog, which work with the sewing needle 1111 to complete the sewing operation. The base tube 21 extends above the base portion 22. This height difference creates a hand space G above the base portion 22. Because the base tube 21 is higher than the base portion 22, the operator's right hand will not interfere with the base portion 22, and the base portion 22 provides elbow support, improving the comfort of the sewing operation.

[0028] Preferably, the extension direction of the machine base cylinder 21 should be perpendicular to the extension direction of the needle 1111 to ensure that the needle 1111 always moves vertically downwards during sewing, thus guaranteeing sewing quality. In this case, it is further required that the machine base cylinder 21 extend perpendicular to the machine head plane S. This is because when performing the finishing operation of cylindrical parts, the sewing of the two edges of the sewn product is usually completed. When the machine base cylinder 21 is perpendicular to the machine head plane S, the stitches on both sides of the seam can be uniform and extend continuously perpendicular to the seam, ensuring the aesthetics of the stitches and the sewing quality.

[0029] like Figure 3 As shown, the base 22 is L-shaped, having a first base 221 and a second base 222 connected at an angle. The base 22 is fixed to the table 3 during installation; the L-shaped support forms a triangular support point, thus improving the stability of the sewing machine after installation. Preferably, the upper surface of the base 22 is flush with the upper surface of the table 3, providing a flat work surface after installation. The base 2 connects the root of the base cylinder 21 to the base 22 via a base connecting part 23, specifically at the end of the first base 221 away from the second base 222. The base 22 preferably extends vertically to the root of the base cylinder 21. The head body 11 of the sewing head 1 is fixed to the base 22 via a head connecting part 12. Specifically, one end of the head connector 12 is fixed to the end of the second base 222 in the base 22 that is away from the first base 221, and the other end of the head connector 12 is fixed to the root of the head body 11. The head connector 12 is preferably fixed perpendicular to the base 22 to maximize the size of the hand space G, and since the power is transmitted through the transmission mechanism in the base 22, the head connector 12 and the base connector 23, the vertical connection between the parts facilitates the arrangement of the transmission mechanism.

[0030] The upper surface of the machine base cylinder 21 is a flat surface without protrusions. This provides support for the tubular products during sewing, preventing snagging. It also facilitates the operator's observation and avoids obstruction of vision.

[0031] In a further embodiment, such as Figure 4 As shown, in order to achieve sewing of most tubular products, the cross-section of the machine base cylinder 21 perpendicular to the extension direction is miniaturized, improving its adaptability to small-sized products such as cup sleeves. To achieve this, it is preferable to use... Figure 4 Inside the compressor housing 21, the rotary shuttle drive shaft 212 for driving the rotary shuttle and the wire-cutting drive shaft 213 for driving the wire-cutting mechanism are coaxially arranged. Specifically, the wire-cutting drive shaft 213 is coaxially sleeved outside the rotary shuttle drive shaft 212, and both can rotate independently around the same center line. By integrating the two power shafts into a single transmission shaft system, the cross-sectional dimensions of the compressor housing 21 can be adjusted. Simultaneously, to accommodate the cross-sectional dimensions of the compressor housing 21, the wire-cutting power unit 214 for driving the wire-cutting mechanism within the housing 21 is preferably located within the housing connection portion 23 and is drive-connected to the wire-cutting drive shaft 213. The wire-cutting power unit 214 and the wire-cutting drive shaft 213 are connected via a synchronous belt drive or via meshing gears.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application shall fall within the protection scope defined by the claims of this application.

Claims

1. A sewing machine, comprising a head (1) and a base (2), characterized in that, The head (1) includes an extended head body (11), one end of which is the sewing end (111), and a sewing needle (1111) is provided at the sewing end (111); the head plane (S) is defined by the extension direction of the head body (11) and the extension direction of the sewing needle (1111); The base (2) includes a base (22) located below the head body (11), a sewing end (211) of the barrel extends from one side of the head plane (S) to below the sewing end (111) of the head, and a base cylinder (21) extends above the base (22), with the extended end of the base cylinder (21) being the sewing end (211).

2. The sewing machine as described in claim 1, characterized in that, The base cylinder (21) extends perpendicularly to the extension direction of the sewing needle (1111) and extends below the sewing end (111) of the machine head.

3. The sewing machine as described in claim 1, characterized in that, The base cylinder (21) extends perpendicularly to the head plane (S) and extends below the sewing end (111) of the head.

4. The sewing machine as described in any one of claims 1-3, characterized in that, The base (2) includes a base connecting part (23), which connects the root of the base cylinder (21) and the base (22).

5. The sewing machine as described in claim 4, characterized in that, The base connection part (23) extends vertically to the base cylinder (21) at the root of the base tube (21) in the height direction.

6. The sewing machine as described in claim 4, characterized in that, The base (22) has a first base (221) and a second base (222) that are fixedly connected at an angle.

7. The sewing machine as described in claim 6, characterized in that, The upper surface of the base (22) is flush with the upper surface of the platform (3) on which it is mounted.

8. The sewing machine as described in claim 5, characterized in that, The base connecting part (23) connects the root of the base cylinder (21) to the end of the first base (221) away from the second base (222); The head (1) has a head connecting part (12), which connects the root of the head body (11) to the end of the second base (222) away from the first base (221).

9. The sewing machine as described in claim 8, characterized in that, The base connection part (23) is fixed perpendicular to the first base part (221), and the head connection part (12) is fixed perpendicular to the second base part (222).

10. The sewing machine as described in claim 4, characterized in that, The base cylinder (21) is coaxially fitted with a rotary shuttle drive shaft (212) and a wire cutting drive shaft (213), or the base (2) includes a wire cutting power device (214), which is disposed in the base connecting part (23) and is connected to the wire cutting drive shaft (213) in a transmission connection.

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