Sewing machine and needle spacing adjustment mechanism thereof

Abstract

The utility model relates to a sewing machine and needle density adjusting mechanism thereof, wherein the main technical scheme of sewing machine needle density adjusting mechanism includes: mounting seat, push -and -pull piece, be used for drive push -and -pull piece to do push -and -pull motion transmission assembly, be used for driving push -and -pull assembly drive assembly, fixed base, and control assembly, drive assembly with mounting seat fixed connection, transmission assembly's input with drive assembly's output transmission connection, push -and -pull piece rotatable installation on fixed base through screw rod, transmission assembly's output with push -and -pull piece's input transmission connection, push -and -pull piece output and sewing machine on needle adjusting rod fixed connection, control assembly with drive assembly electricity is connected, and the technical scheme key points of needle density adjusting mechanism are: whole stable structure, convenient installation can realize needle density's full automation adjustment operation, effectively improve production and processing efficiency, reduce artificial labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and more specifically, to a sewing machine and its needle spacing adjustment mechanism. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to interweave and sew fabrics together to form stitches. Existing sewing machines adjust the stitch length using a threaded needle length adjustment device that runs through the inside and outside of the machine body. This is done manually by using the thread to move the adjusting rod axially. During this process, the head of the adjusting rod pushes the cam to change position, thus adjusting the stitch length. However, this adjustment method is time-consuming, labor-intensive, has a low degree of automation, and requires a lot of manual labor. Therefore, we propose a new sewing machine and its stitch length adjustment mechanism. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sewing machine and its needle spacing adjustment mechanism to solve the technical problems existing in the background art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sewing machine and its needle spacing adjustment mechanism, comprising: a mounting base, a push-pull component, a transmission assembly for driving the push-pull component to perform push-pull movement, a drive assembly for driving the push-pull component, a fixed base, and a control assembly; the drive assembly is fixedly connected to the mounting base; the input end of the transmission assembly is drively connected to the output end of the drive assembly; the push-pull component is rotatably mounted on the fixed base via a screw; the output end of the transmission assembly is drively connected to the input end of the push-pull component; the output end of the push-pull component is fixedly connected to the needle spacing adjustment rod on the sewing machine; the control assembly is electrically connected to the drive assembly.

[0005] Optionally, the push-pull component includes a connecting block and a hook; one end of the connecting block is connected to the output end of the transmission assembly, and the other end is fixedly connected to the hook; the hook is connected to the needle density adjustment rod on the sewing machine.

[0006] Optionally, the transmission assembly includes: a rocker arm and a connecting rod; one end of the rocker arm is hinged to the connecting block, and the other end is hinged to one end of the connecting rod; the other end of the connecting rod is fixedly connected to the output end of the drive assembly.

[0007] Optionally, the drive assembly includes: a two-position cylinder; the two-position cylinder is fixedly connected to the mounting base; quick connectors are respectively provided at both ends of the two-position cylinder; the quick connectors are respectively connected to the piston chambers at both ends of the two-position cylinder; the output end of the two-position cylinder is fixedly connected to the connecting rod; and the two-position cylinder is electrically connected to the control assembly.

[0008] Optionally, the fixing seat is provided with an adjustment groove; the fixing seat can be adjusted and installed on the frame of the sewing machine through the adjustment groove and the screw.

[0009] This utility model also provides a sewing machine, which includes the above-described sewing machine fine needle spacing adjustment mechanism.

[0010] This utility model has a stable overall structure and is easy to install. It can realize fully automated adjustment of the needle spacing, effectively improving production and processing efficiency and reducing manual labor intensity. Attached Figure Description

[0011] Figure 1 This is an assembly drawing of this utility model;

[0012] Figure 2 This is a structural diagram of the present invention during assembly.

[0013] In the diagram: 1. Mounting base; 2. Push-pull component; 21. Connecting block; 3. Transmission assembly; 31. Rocker arm; 32. Connecting rod; 4. Drive assembly; 41. Two-position cylinder; 42. Quick connector; 5. Fixed base; 6. Adjustment groove. Detailed Implementation

[0014] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0016] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This utility model provides a fine needle spacing adjustment mechanism for sewing machines, such as... Figure 1 As shown, it includes: a mounting base 1, a push-pull component 2, a transmission assembly 3 for driving the push-pull component 2 to perform push-pull movements, a drive assembly 4 for driving the transmission assembly 3, a fixed base 5, and a control assembly; the drive assembly 4 is fixedly connected to the mounting base 1; the input end of the transmission assembly 3 is drively connected to the output end of the transmission assembly 3; the push-pull component 2 is rotatably mounted on the fixed base 5 via a screw; the output end of the transmission assembly 3 is drively connected to the input end of the push-pull component 2; the output end of the push-pull component 2 is fixedly connected to the needle density adjustment rod on the sewing machine; the control assembly is electrically connected to the drive assembly 4.

[0019] In this embodiment, the control component (not shown in the attached drawings) includes a controller and an electrical box, etc. The electrical box is an electrical box with a complete electrical control system inside. The controller can be a microcontroller, MCU, PLC, etc., which controls the orderly operation of the drive component 44. In this embodiment, an MCU is selected. During assembly, the push-pull component 2 is connected to the needle spacing adjustment rod on the sewing machine (the adjustment rod is used to push the cam to change position, thereby realizing the needle spacing adjustment). During operation, the control component (not shown in the attached drawings) controls the drive component to work. When the drive component 4 works, it performs a push-pull action to drive the transmission component 3 to perform a push-pull action, which in turn drives the push-pull component 2 to perform a push-pull action. During the extension of the push-pull component 2, it drives the adjustment rod in the sewing machine to move, which in turn drives the cam to change position, thereby realizing the needle spacing adjustment operation. The overall structure is stable and easy to install. It can realize the fully automated adjustment operation of the needle spacing, effectively improving production efficiency and reducing manual labor intensity.

[0020] Furthermore, the push-pull component 2 includes a connecting block 21 and a hook (not shown in the figure); one end of the connecting block 21 is connected to the output end of the transmission component 3, and the other end is fixedly connected to the hook (not shown in the figure); the hook (not shown in the figure) is connected to the needle adjustment rod on the sewing machine; in this embodiment, the overall mechanism of the hook (not shown in the figure) is similar to the shape of a barb.

[0021] Further, the transmission assembly 3 includes: a rocker arm 31 and a connecting rod 32; one end of the rocker arm 31 is hinged to the connecting block 21, and the other end is hinged to one end of the connecting rod 32; the other end of the connecting rod 32 is fixedly connected to the output end of the drive assembly 4; as shown Figure 1-2 As shown, the rocker arm 31 is an irregularly shaped rocker arm 31, and its overall structure is similar to a Z-shape, so as to drive the push-pull component 2 to perform push-pull operation.

[0022] Further, the drive assembly 4 includes: a two-position cylinder 41; the two-position cylinder 41 is fixedly connected to the mounting base 1; quick connectors 42 are respectively provided at both ends of the two-position cylinder 41; the quick connectors 42 communicate with the piston chambers at both ends of the two-position cylinder 41; the output end of the two-position cylinder 41 is fixedly connected to the connecting rod 32; the two-position cylinder 41 is electrically connected to the control assembly; in this embodiment, as... Figure 1-2 As shown, the double-position cylinder 41 is a commercially available double-acting cylinder that can alternately supply air to both sides of the piston. It is existing technology and will not be described in detail here. The double-position cylinder 41 is used to realize the push-pull operation of the needle. Its structure is simple and easy to install.

[0023] Furthermore, the fixed base 5 is provided with an adjustment groove 6; the fixed base 5 is adjustablely mounted on the frame of the sewing machine through the cooperation of the adjustment groove 6 and the screw; the user can adjust the installation height of the fixed base 5 on the sewing machine according to the actual application.

[0024] This utility model discloses a dense needle spacing adjustment mechanism for sewing machines. The overall structure is stable and easy to install. It can realize fully automated adjustment of dense needle spacing, effectively improving production efficiency and reducing manual labor intensity.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A needle spacing adjustment mechanism for a sewing machine, characterized in that, include: The system comprises a mounting base, a push-pull component, a transmission assembly for driving the push-pull component to perform push-pull movements, a drive assembly for driving the push-pull component, a fixed base, and a control assembly; the drive assembly is fixedly connected to the mounting base; the input end of the transmission assembly is drively connected to the output end of the drive assembly; the push-pull component is rotatably mounted on the fixed base via a screw; the output end of the transmission assembly is drively connected to the input end of the push-pull component; the output end of the push-pull component is fixedly connected to the needle density adjustment rod on a sewing machine; and the control assembly is electrically connected to the drive assembly.

2. The sewing machine needle spacing adjustment mechanism according to claim 1, characterized in that, The push-pull component includes a connecting block and a pull hook; one end of the connecting block is connected to the output end of the transmission assembly, and the other end is fixedly connected to the pull hook; the pull hook is connected to the needle adjustment rod on the sewing machine.

3. The needle spacing adjustment mechanism for a sewing machine according to claim 2, characterized in that, The transmission assembly includes a rocker arm and a connecting rod; one end of the rocker arm is hinged to the connecting block, and the other end is hinged to one end of the connecting rod; the other end of the connecting rod is fixedly connected to the output end of the drive assembly.

4. The needle spacing adjustment mechanism for a sewing machine according to claim 3, characterized in that, The drive assembly includes: a two-position cylinder; the two-position cylinder is fixedly connected to the mounting base; quick connectors are respectively provided at both ends of the two-position cylinder; the quick connectors are respectively connected to the piston chambers at both ends of the two-position cylinder; the output end of the two-position cylinder is fixedly connected to the connecting rod; and the two-position cylinder is electrically connected to the control assembly.

5. The needle spacing adjustment mechanism for a sewing machine according to claim 1, characterized in that, The fixed base is provided with an adjustment groove; the fixed base can be adjusted and installed on the frame of the sewing machine through the adjustment groove and the screw.

6. A sewing machine, characterized in that, The sewing machine includes the close-needle spacing adjustment mechanism according to any one of claims 1-5.

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