Self-cooling assembly driven by temperature difference

Abstract

The utility model discloses a self-cooling assembly driven by temperature difference, which comprises a fiber core used for infiltrating lubricating oil to form continuous distribution, the fiber core is continuously filled in a flexible pipe with a sealed continuous side wall and two open ends, and the two ends of the fiber core respectively extend out of the flexible pipe; the flexible pipe comprises a fixed part fixed in the mounting seat and a connecting part which integrally extends out of the interior of the mounting seat and extends into the oil supply unit; one end, extending out of the mounting seat, of a fiber core for infiltrating and transmitting lubricating oil is in contact with the rotating shuttle, and the other end of the fiber core extends into the oil supply unit along the flexible pipe; the flexible fiber core is matched with the pipeline surrounding the fiber core to continuously supply liquid lubricating oil to the rotating shuttle through contact between the fiber core and the rotating shuttle, and the liquid lubricating oil is used for cooling and lubricating the rotating shuttle.

Description

Technical Field

[0001] The utility model relates to the technical field of computer sewing machines, in particular to a self-cooling component driven by temperature difference. Background Art

[0002] The rotary hook is an important part of the sewing machine. Among the sewing equipment, the most common sewing machine is the lockstitch sewing machine. Most of these sewing machines use a rotary hook, which hooks the thread loop with its hook tip, expands the thread loop, and guides the thread loop around the shuttle frame to form a lockstitch. In actual use, the rotary hook generates heat due to friction, and it is necessary to inject lubricating oil between the outer shuttle frame and the inner shuttle frame to cool the space between the outer shuttle frame and the inner shuttle frame through the volatilization of the lubricating oil and the heat dissipation. The Chinese invention patent application with application number CN2023115668946 discloses a rotary hook that does not require external lubricating oil. The patent proposes that when installing the rotary hook, lubricating oil can be filled into the oil storage tank. When the inner shuttle frame drives a number of balls to rotate, the balls bring out the lubricating oil in the oil storage tank, and scrape off the excess lubricating oil on the surface of the balls through the inner wall of the through hole, so that a suitable amount of lubricating oil remains on the surface of the balls for volatilization and heat dissipation, extending the service life of the lubricating oil. The amount of lubricating oil filled in the oil storage tank makes the service life of the lubricating oil approximately equal to the service life of the rotary hook, thereby realizing that no external lubricating oil is required during the use of the rotary hook, eliminating the trouble of regularly cleaning the oil container, making the use of the rotary hook more convenient. It can be seen that in the prior art, the addition of lubricating oil to the rotary hook position still requires an oil pump or an oil storage tank is directly set on the rotary hook structure. As the use time increases, the open oil storage tank will inevitably deposit ink or require subsequent shutdown to add lubricating oil or cleaning and maintenance, which is not conducive to improving production efficiency. Summary of the invention

[0003] The purpose of the utility model is to provide a self-cooling component driven by temperature difference. The utility model uses a flexible fiber core in conjunction with a pipe surrounding the fiber core to continuously and uninterruptedly supply liquid lubricating oil to the rotary hook through the contact between the fiber core and the rotary hook, which is used for cooling and lubricating the rotary hook.

[0004] To solve this technical problem, the technical solution of the utility model is: a self-cooling component driven by temperature difference, including a fiber core used to be impregnated with lubricating oil to form a continuous distribution, the fiber core is continuously filled in a flexible tube with a sealed continuous side wall and openings at both ends, and the two ends of the fiber core respectively extend out of the flexible tube; the flexible tube includes a fixed part fixed in a mounting seat and a connecting part extending from the inside of the mounting seat and extending into an oil supply unit; one end of the fiber core used for impregnating and transferring lubricating oil extends out of the mounting seat to contact the rotary shuttle, and the other end of the fiber core extends along the flexible tube into the oil supply unit.

[0005] Further improvement, the oil supply unit is formed by the side wall of the sewing machine mounting frame and the oil supply bin, and the side wall of the sewing machine mounting frame is provided with an oil supply hole for filling lubricating oil. The utility model utilizes a flexible tube and a fiber core to close the oil supply pipeline. When the temperature of the rotary hook increases due to continuous use, the temperature of the fiber core in contact with the rotary hook decreases as the temperature of the rotary hook increases. The viscosity of the lubricating oil soaked in the fiber core is continuously applied to the heating position of the rotary hook. At the same time, since the fiber core is soaked with a sufficient amount of lubricating oil, the capillary effect in the fiber core is utilized as the lubricating oil is continuously applied to the rotary hook to form a continuous supply of lubricating oil. The entire lubricating oil pipeline is sealed to prevent the lubricating oil from drying and forming scale. Once the position where the fiber core contacts the rotary hook is contaminated, the flexible tube and the fiber core in the flexible tube can be directly replaced. The self-cooling component facilitates the maintenance of the sewing machine while ensuring the lubrication and cooling effect.

[0006] As a further improvement, the middle of the mounting seat for mounting the fixed knife is provided with a hollow structure for passing the shuttle bed transmission shaft and the thread trimmer transmission sleeve, and a solid structure around the hollow structure, wherein an embedded pipe for accommodating the flexible tube is provided in the solid structure. The utility model embeds the flexible tube in the mounting seat, which structurally protects the flexible tube and facilitates the positioning of the fiber core.

[0007] As a further improvement, the flexible tube has a transparent side wall. The utility model utilizes a flexible tube with a transparent side wall to facilitate observation of the distribution continuity of the lubricating oil in the fiber core.

[0008] Preferably, the fiber core is a cotton core.

[0009] In a further improvement, the fixed part of the flexible tube filled with the fiber core is arranged in parallel with the shuttle bed transmission shaft, and the continuous part of the flexible tube bypasses the drive assembly and connects to the oil supply unit. The utility model utilizes the flexible and continuous structure of the flexible tube to bypass the drive assembly, and while ensuring shearing, it also drives the lubricating oil in the flexible tube and the fiber core to be coated on the surface of the rotary hook for the rotation and heating of the rotary hook.

[0010] By adopting the above technical solution, the beneficial effects of the utility model are:

[0011] The utility model includes a fiber core for impregnating lubricating oil to form a continuous distribution, the fiber core is continuously filled in a flexible tube with a sealed continuous side wall and openings at both ends, and the two ends of the fiber core extend out of the flexible tube respectively; the flexible tube includes a fixing portion fixed in a mounting seat and a connecting portion extending from the inside of the mounting seat and extending into an oil supply unit; one end of the fiber core for impregnating and transferring lubricating oil extends out of the mounting seat to contact a rotary shuttle, and the other end of the fiber core extends along the flexible tube to the oil supply unit; the utility model provides a technical solution for driving the lubricating oil to be applied to the rotary shuttle by causing a change in the viscosity of the lubricating oil impregnated in the fiber core through frictional heating, and the lubricating oil is provided to the rotary shuttle through a sealed flexible tube and a fiber core. The utility model utilizes the frictional heating in the production process in conjunction with the sealed pipeline to continuously provide the lubricating oil, reduces the contact between the lubricating oil and the external environment, and reduces the possibility of the lubricating oil becoming fouled. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a self-cooling component driven by temperature difference involved in the utility model;

[0013] Figure 2 This is a structural schematic diagram of a self-cooling component driven by temperature difference involved in the utility model;

[0014] Figure 3 It is a three-dimensional diagram of the cooperation between the oil supply pipeline and the shear assembly in the utility model;

[0015] Figure 4 It is a three-dimensional diagram of the cooperation between the oil supply pipeline and the shear assembly in the utility model;

[0016] Figure 5 It is a separate structural diagram of the fixed seat and the shearing device.

[0017] In the figure:

[0018] Fiber core 1; flexible tube 2; fixing part 21; connecting part 22; fixing seat 3; embedded pipeline 31; oil supply unit 4; rotary hook 5; mounting frame 6; oil supply bin 7; shuttle bed transmission shaft 8; thread trimming transmission shaft sleeve 9; drive assembly 100 。 DETAILED DESCRIPTION

[0019] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0020] This embodiment discloses a self-cooling component driven by temperature difference, such as Figures 1 to 5As shown, it includes a fiber core 1 for impregnating lubricating oil to form a continuous distribution, the fiber core 1 is continuously filled in a flexible tube 2 with a sealed continuous side wall and openings at both ends, and the two ends of the fiber core 1 extend out of the flexible tube 2 respectively; the flexible tube 2 includes a fixing portion 21 fixed in a mounting seat 3 and a connecting portion 22 extending from the inside of the mounting seat 3 and extending into an oil supply unit 4; one end of the fiber core 1 for impregnating and transferring lubricating oil extends out of the mounting seat 3 to contact the rotary shuttle 5, and the other end of the fiber core 1 extends along the flexible tube 2 into the oil supply unit 4.

[0021] In this embodiment, the oil supply unit 4 is formed by the side wall of the sewing machine mounting frame 6 and the oil supply tank 7, and the side wall of the sewing machine mounting frame 6 is provided with an oil supply hole 61 for filling lubricating oil. In this embodiment, the flexible tube 2 and the fiber core 1 are used to close the oil supply pipeline. When the temperature of the rotary hook 5 increases with continuous use, the temperature of the fiber core 1 in contact with the rotary hook 5 decreases as the temperature of the rotary hook 5 increases. The viscosity of the lubricating oil soaked in the fiber core 1 is continuously applied to the heating position of the rotary hook 5. At the same time, since the fiber core 1 is soaked with sufficient lubricating oil, the capillary effect in the fiber core 1 is utilized as the lubricating oil is continuously applied to the rotary hook 5 to form a continuous supply of lubricating oil. The entire lubricating oil pipeline is sealed to prevent the lubricating oil from drying and forming scale. Once the position where the fiber core 1 contacts the rotary hook 5 is contaminated, the flexible tube 2 and the fiber core 1 in the flexible tube 2 can be directly replaced. The self-cooling component ensures the lubrication and cooling effect while facilitating the maintenance of the sewing machine.

[0022] In this embodiment, the middle of the mounting seat 3 for mounting the fixed knife is provided with a hollow structure for passing the shuttle bed transmission shaft 8 and the thread trimmer transmission sleeve 9, and a solid structure around the hollow structure, and the solid structure is provided with an embedded pipe 31 for accommodating the flexible tube 2. In this embodiment, the flexible tube 2 is built into the mounting seat 3, which structurally protects the flexible tube 2 and facilitates the positioning of the fiber core 1.

[0023] The flexible tube 2 in this embodiment has a transparent side wall. In this embodiment, the flexible tube 2 with a transparent side wall is used to facilitate observation of the distribution continuity of the lubricating oil in the fiber core 1.

[0024] In this embodiment, the fiber core 1 is a cotton thread core.

[0025] In this embodiment, the fixed portion 21 of the flexible tube 2 filled with the fiber core 1 is arranged parallel to the shuttle bed transmission shaft 8, and the continuous portion of the flexible tube 2 bypasses the driving assembly 100 to connect with the oil supply unit 4. In this embodiment, the flexible and continuous structure of the flexible tube 2 bypasses the driving assembly 100, and while ensuring shearing, the lubricating oil in the flexible tube 2 and the fiber core 1 is applied to the surface of the rotating hook 5 to drive the rotating hook 5 to rotate and heat up.

[0026] The present embodiment includes a fiber core 1 for impregnating lubricating oil to form a continuous distribution, the fiber core 1 is continuously filled in a flexible tube 2 with a sealed continuous side wall and openings at both ends, and the two ends of the fiber core 1 extend out of the flexible tube 2 respectively; the flexible tube 2 includes a fixing portion 21 fixed in a mounting seat 3 and a connecting portion extending from the inside of the mounting seat 3 and extending into an oil supply unit 4; one end of the fiber core 1 for impregnating and transferring lubricating oil extends out of the mounting seat 3 to contact the rotary shuttle 5, and the other end of the fiber core 1 extends along the flexible tube 2 to the oil supply unit 4; the present embodiment provides a technical solution for driving the lubricating oil to be applied to the rotary shuttle 5 by causing a change in the viscosity of the lubricating oil impregnated in the fiber core 1 through frictional heating, and the lubricating oil is provided to the rotary shuttle 5 through the sealed flexible tube 2 and the fiber core 1. The present embodiment utilizes the frictional heating in the production process to cooperate with the sealed pipeline to continuously provide the lubricating oil, thereby reducing the contact between the lubricating oil and the external environment and reducing the possibility of the lubricating oil scaling.

Claims

1. A self-cooling component driven by temperature difference, characterized in that: It includes a fiber core for impregnating lubricating oil to form a continuous distribution, the fiber core is continuously filled in a flexible tube with a sealed continuous side wall and two ends of openings, and the two ends of the fiber core extend out of the flexible tube respectively; the flexible tube includes a fixing portion fixed in a mounting seat and a connecting portion extending from the inside of the mounting seat and extending into the oil supply unit; One end of the fiber core used for soaking and transferring lubricating oil extends out of the mounting seat to contact the rotary hook, and the other end of the fiber core extends into the oil supply unit along the flexible tube.

2. A self-cooling component driven by temperature difference as claimed in claim 1, characterized in that: The oil supply unit is formed by being surrounded by the side wall of the sewing machine mounting frame and the oil supply bin, and the side wall of the sewing machine mounting frame is provided with an oil supply hole for filling lubricating oil.

3. The self-cooling component driven by temperature difference as claimed in claim 1, characterized in that: The middle part of the mounting seat for mounting the fixed knife is provided with a hollow structure for passing the shuttle bed transmission shaft and the thread trimmer transmission sleeve and a solid structure around the hollow structure, wherein an embedded pipeline for accommodating the flexible pipe is provided in the solid structure.

4. A self-cooling component driven by temperature difference as claimed in claim 3, characterized in that: The flexible tube has a transparent side wall.

5. A self-cooling component driven by temperature difference as claimed in claim 4, characterized in that: The fiber core is a cotton thread core.

6. The self-cooling component driven by temperature difference as claimed in claim 1, characterized in that: The fixed part of the flexible tube filled with the fiber core is arranged in parallel with the shuttle bed transmission shaft and bypasses the driving assembly to communicate with the oil supply unit.

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