Oil-free rotating shuttle cooling structure

Abstract

An oil-free rotating shuttle cooling structure comprises a shuttle race, a shuttle skin, a shuttle frame and a shuttle plate, a fan blade set is arranged on the shuttle race, and the fan blade set is used for sucking hot air away from the interior of a rotating shuttle or blowing air into the rotating shuttle; the fan blade group comprises blades, and the outer edges of the blades do not exceed the running contour curved surface of the shuttle race; hot air is sucked away from the interior of the rotating shuttle in the working direction of the blades. Air can also be blown into the rotating shuttle, especially in the guide rail direction; due to the fact that the fan installation face and the shuttle race thread hooking portion are staggered in position, when the sewing machine works, the influence of airflow on a thread ring generated by sewing threads is small; the fan blades are integrated on the rotating shuttle, so that the working state of the rotating shuttle, namely the rotating speed and the cooling amount, forms a proportional relation, namely the rotating speed is high, the required cooling requirement is increased, the rotating speed of the fan blades is increased, the cooling air amount is increased, the rotating speed and the cooling air amount form a dynamic balance cooling and heating relation, tedious procedures and structures such as adjustment are omitted, and the technical effect of self-adaptive cooling is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the shuttle technology field of sewing equipment, specifically relates to a no oil shuttle cooling structure. BACKGROUND

[0002] The flat bed sewing machine is the most in the sewing machine field, with the improvement of people's living standard, the quality and grade of clothes are higher and higher, and the no oil shuttle conforms to the trend of the times and is used more in many scenes.

[0003] The highest speed of the shuttle is 10000Rpm, there is non-eliminable friction between the shuttle guide rail and the shuttle guide rail groove, the temperature rise and the sewing performance are all restricted by the service life of the no oil shuttle.

[0004] The structure of the shuttle mainly comprises a shuttle main body (shuttle bed), a shuttle holder, a shuttle plate, a shuttle skin and a locking screw; the existing shuttle, the shuttle holder is a whole metal structure, and the guide rail on the shuttle holder is integrally processed.

[0005] In the prior art, the no oil shuttle is not absolutely oil-free, but compared with normal oil or excess oil, the oil is very small, reaches basic lubrication, and is sufficient to avoid the process condition of oil-stained fabric, that is, between the pollution of the fabric and the lubricating oil stain, the oil stain problem is solved by reducing the oil supply;

[0006] The no oil shuttle is mainly used for the scene of no oil, trace oil supply and less oil, adopts a high polymer material guide rail and a DLC coating technology inner container, and is developed for the working condition of customers who are afraid of oil.

[0007] In some actual working processes, the guide rail cannot be well lubricated due to insufficient oil supply of the shuttle, and in some scenes, the customers do not clean the thread hair generated in the sewing process regularly, and the heat generated by the guide rail friction cannot be well dissipated, so that the service life of the shuttle is reduced. INVENTION CONTENTS

[0008] The main mechanism, the shuttle driving shaft, the shuttle and the like of the sewing machine, the shuttle structure and the sewing principle are the same as those of the existing shuttle, and will not be described here, and the shuttle of the application is provided with a heat dissipation device to be optimized and improved;

[0009] The utility model aims at providing a no oil shuttle cooling structure, which comprises a shuttle bed, a shuttle skin, a shuttle holder and a shuttle plate, the shuttle bed is provided with a fan blade group, the fan blade group is used for sucking hot air from the inside of the shuttle or blowing air into the inside of the shuttle, and the fan blade group comprises blades, and the outer edge of the blade does not exceed the running profile curved surface of the shuttle bed.

[0010] The technical scheme provided by the application also has the following technical features:

[0011] Preferably, in an embodiment of the present application, the outer edge of the vane exceeds the shuttle bed running contour plane; the shuttle bed running contour plane refers to the plane where the shuttle bed of the sewing machine contacts or moves relative to other components during movement, refers to the contact surface where the shuttle bed contacts other components, or refers to the plane where the path followed by the shuttle bed during movement is located.

[0012] Preferably, in an embodiment of the present application, a vane mounting surface is provided on the shuttle bed, and the vane set and the thread hooking portion of the shuttle bed are arranged in a staggered manner;

[0013] The vane mounting surface is a plane or a curved surface, or a combination of curved surfaces and planes, as long as the vane set can be fixedly mounted at the desired position of the shuttle bed, and it can be considered as an effective mounting surface.

[0014] During rotation of the thread hooking portion of the shuttle bed, the thread loop formed by the needle is hooked by the sharp portion, thereby reducing the influence of the vane on the thread hooking portion.

[0015] Preferably, in an embodiment of the present application, the vane set includes a base plate, the base plate is a flat plate, mounting holes are provided on the base plate, the vanes are arranged on the base plate, and the base plate is mounted on the vane mounting surface by fasteners.

[0016] Preferably, in an embodiment of the present application, the vane set includes a ring sleeve plate, the ring sleeve plate includes an arc-shaped portion and a flat plate portion, the ring sleeve plate is sleeved on the root portion of the shuttle bed, and the vanes are arranged on the flat plate portion.

[0017] Preferably, in an embodiment of the present application, the vane set and the shuttle bed are integrally arranged, the vane set is formed by 3D printing, machining, or integral injection molding.

[0018] Preferably, in an embodiment of the present application, heat dissipation protrusions are provided on the shuttle bed, or the shuttle skin, or the shuttle frame, or the shuttle plate, or the vane set, and the heat dissipation protrusions do not interfere with the rotation of the rotating shuttle, and are used for heat dissipation convection.

[0019] Without affecting the original function of the rotating shuttle, the heat dissipation protrusions can increase the surface area of the shuttle bed in contact with air, thereby improving the heat dissipation efficiency.

[0020] The heat dissipation protrusions help to form air flow inside the rotating shuttle, and help to carry away the heat generated by friction.

[0021] During high-speed sewing, a large amount of heat may be generated inside the rotating shuttle, and the heat dissipation protrusions help to disperse and export the heat, thereby preventing local overheating.

[0022] Preferably, in an embodiment of the present application, a thermoelectric cooling module, a liquid cooling evaporation module, a compressed gas jet module, a heat pipe module, or a sound wave cooling module is provided on the target cooling portion of the oil-free rotating shuttle, and is used for heat dissipation convection.

[0023] The application has the beneficial effects of:

[0024] 1. The application provides an oil-free rotating hook cooling structure. The working direction of the blade absorbs hot air from the inside of the rotating hook. Air can also be blown into the inside of the rotating hook, especially in the guide rail direction. Since the fan mounting surface and the position of the hook bed hooking part are staggered, the airflow has little effect on the thread loops generated by the sewing thread when the sewing machine is working.

[0025] 2. The application integrates the fan blades on the rotating hook, so that the working state of the rotating hook, i.e. the rotational speed and the cooling capacity, form a proportional relationship. That is, the greater the rotational speed, the greater the cooling demand required, and the greater the fan blade rotational speed, the greater the cooling air volume, so that the two form a dynamic balance of cooling and heating relationship, eliminating the tedious procedures and structures of adjustment, and having the technical effect of self-adaptive cooling. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective view of an oil-free rotating hook cooling structure of the utility model Figure 1 ;

[0027] Figure 2 It is a perspective view of an oil-free rotating hook cooling structure of the utility model Figure 2 ;

[0028] Figure 3 It is an exploded view of an oil-free rotating hook cooling structure of the utility model

[0029] Elements in the figure:

[0030] 1. Hook bed

[0031] S1, fan blade mounting surface

[0032] S2, hook bed running contour plane

[0033] S3, hook bed running contour curve

[0034] S4, mounting hole

[0035] S5, hooking part

[0036] 2. Hook skin

[0037] 3. Hook holder

[0038] 4. Hook plate

[0039] 5. Fan blade group

[0040] 501, blade

[0041] 6. Fastener. DETAILED DESCRIPTION

[0042] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate the present application, and are not limiting to the present application.

[0043] In the description of the present application, it should be explained that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the indicated devices or elements to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In addition, in the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0046] As Figures 1-3 An oil-free shuttle cooling structure, comprising a shuttle bed 1, a shuttle skin 2, a shuttle frame 3, a shuttle plate 4, a fan group 5 is arranged on the shuttle bed 1, the fan group 5 is used for sucking hot air from the inside of the shuttle or blowing air into the inside of the shuttle; the fan group 5 comprises blades 501, and the outer edge of the blade 501 does not exceed the running contour curve S3 of the shuttle bed.

[0047] The working principle of the present application is as follows:

[0048] The fan blades integrated in the shuttle body drive air flow by centrifugal force generated when the shuttle rotates at high speed, forming a cooling air flow. When the rotation speed of the shuttle reaches the peak value (for example, 10000 revolutions per minute), the fan blades accelerate the air flow to quickly remove the heat generated by the friction between the guide rail and the guide rail groove; the air flow not only helps to cool the shuttle body, but also blows out the impurities such as fibers and thread hairs on the surface of the guide rail, thereby avoiding the accumulation of impurities and further reducing friction and wear.

[0049] Adaptive cooling effect: the cooling effect of the fan blades is proportional to the speed of the hook, the faster the hook rotates, the stronger the airflow driven by the fan blades, and the cooling effect is also enhanced; the adaptive cooling mechanism can automatically adjust according to the sewing work intensity, ensuring that the cooling effect is optimal during high-load operation and preventing high temperature from affecting the normal operation of the hook.

[0050] When the application is implemented, the implementation points are as follows:

[0051] Integrated structure design: the fan blades are designed to be integrated on the hook body, without the need for additional external cooling devices, compact structure and easy operation; this integrated design not only saves equipment space, but also improves the cooling effect without affecting the overall function of the hook;

[0052] Cooling and cleaning dual function: in addition to the cooling effect, the airflow generated by the fan blades can effectively clean the lint and other fiber materials in the hook, reducing their accumulation on the guide rail; compared with the heat accumulation problem commonly seen in oil-free hook systems, this scheme can reduce the wear caused by heat and impurities from the source;

[0053] Suitable for oil-free or low-oil environment: due to the small amount of lubricating oil in the oil-free hook, the fan blade cooling can make up for the deficiency of traditional lubrication, especially in high-load and high-speed sewing scenarios, to ensure the temperature control and continuous performance of the hook.

[0054] Specifically, in an embodiment of the present application, the outer edge of the blade 501 exceeds the shuttle bed running contour plane S2 to avoid interference with the movement space of the hook; the fan blade mounting surface S1 is provided on the shuttle bed 1, and the hooking part S5 of the fan blade group 5 and the shuttle bed 1 are arranged in a staggered manner, so that the influence of the airflow on the thread loop of the sewing thread is small when the sewing machine is working.

[0055] Specifically, in an embodiment of the present application, the fan blade group 5 includes a base plate, the base plate is a flat plate, the base plate is provided with a mounting hole, and the blades 501 are arranged on the base plate; the base plate is installed on the fan blade mounting surface S1 by the fastener 6.

[0056] Specifically, in an embodiment of the present application, the fan blade group 5 includes a ring sleeve plate, the ring sleeve plate includes an arc-shaped part and a flat plate part, the ring sleeve plate is sleeved on the root of the shuttle bed 1, and the blades 501 are arranged on the flat plate part;

[0057] The fastener 6 is a threaded part.

[0058] Specifically, in an embodiment of the present application, the fan blade group 5 and the shuttle bed 1 are integrally arranged, the fan blade group 5 is formed by 3D printing or machining or integrally injection molding; the integrally formed parts have a compact structure.

[0059] Specifically, in one embodiment of the present application, the shuttle bed 1 or the shuttle skin 2 or the shuttle frame 3 or the shuttle plate 4 or the fan group 5 is provided with a heat dissipation protrusion, and the heat dissipation protrusion does not interfere with the rotating movement of the rotating shuttle, for heat dissipation convection.

[0060] Specifically, in one embodiment of the present application, the target cooling part of the oil-free rotating shuttle is provided with a thermoelectric cooling module or a liquid cooling evaporation module or a compressed air jet module or a heat pipe module or a sound wave cooling module, for heat dissipation convection, that is, the present application does not exclude other cooling auxiliary means, for improving the working condition of the rotating shuttle, and fully utilizing the structure of the rotating shuttle to achieve the balance of meeting the working requirements and cooling required working conditions;

[0061] Thermoelectric cooling principle: form local temperature difference through thermoelectric cooler, drive heat flow movement, not directly form air flow, but can induce convection of surrounding air through temperature difference, achieve cooling purpose;

[0062] Liquid cooling evaporation principle: use liquid (coolant) for cooling, then take away heat through evaporation of liquid. The liquid evaporates after heating, and the gas flows away heat during the process;

[0063] Compressed air jet cooling principle: compressed air jet forms air flow, uses compressed air equipment to directly spray cold air to the area needing cooling, quickly takes away heat;

[0064] Heat pipe is a device that uses phase change for heat transfer, conducts heat quickly from one end of the heat source to the other end, induces air flow by transferring heat to a location away from the heat source;

[0065] Sound wave cooling is a cooling method that uses sound waves or ultrasonic waves to promote the flow of air or other fluids, thereby taking away heat.

[0066] Specifically, in one embodiment of the present application, as Figures 1-3 An oil-free rotating shuttle cooling structure, a fan mounting surface S1 is provided on the shuttle bed, and mounting holes S4 are provided on the fan mounting surface S1, and two screws are used to fix and install the fan group 5 on the shuttle bed 1.

[0067] In order to avoid affecting the dynamic balance of the rotating shuttle, the fan group 5 is preferably designed to be lightweight, and is provided with a plurality of blades 501.

[0068] Because the running area of the sewing machine rotating shuttle is relatively compact in structure, the blades cannot interfere with other structures, so the maximum arc of the blades 501 is preferably not more than the running profile curved surface S3 of the shuttle bed, and can be slightly smaller than the running profile curved surface S3 of the shuttle bed.

[0069] Because the diameter of the rotating hook is small, and the running speed is up to 10000 rpm, the installation of the blade 501 is preferably slightly beyond the running contour plane S2 of the hook bed to ensure that the blade 501 can be more stable output, so that the air flow is smooth.

[0070] The working direction of the blade 501 can be to suck hot air from the inside of the rotating hook, or to blow air into the inside of the rotating hook, especially in the guide rail direction.

[0071] Because the installation surface S1 of the fan is staggered with the position of the hooking part S5 of the hook bed 1, the air flow has little effect on the thread loop of the sewing thread when the sewing machine is working.

[0072] In summary, the utility model aims to solve the cooling problem in the existing oil-free rotating hook cooling structure. The rotating hook with integrated fan blade cooling not only effectively solves the temperature rise problem caused by friction in the existing oil-free rotating hook, but also removes internal impurities, prolongs the service life of the rotating hook, and has high self-adaptability and operation convenience. It has the following characteristics:

[0073] More efficient dynamic cooling: fan blade cooling uses the high-speed rotation of the rotating hook to drive air flow, without the need for additional power or independent cooling equipment. Compared with the existing passive cooling method, it is more efficient. When the rotating hook speed is high, it can quickly remove heat and avoid temperature accumulation.

[0074] Low maintenance, long service life: Because fan blade cooling does not rely on grease lubrication to achieve cooling, it avoids the maintenance problems caused by grease evaporation or contamination in traditional methods. At the same time, by reducing friction heat and lint accumulation, the service life of the rotating hook can be prolonged.

[0075] Reduce impurity accumulation: the air power of the fan blade can effectively remove fibers and lint in the rotating hook, avoiding impurities adhering to the inner wall of the rotating hook at high temperatures, further reducing wear and tear.

[0076] The above is only the preferred embodiment of the utility model, and it should be noted that for ordinary technical personnel in the technical field, without departing from the technical principles of the utility model, a number of improvements and substitutions can be made, and these improvements and substitutions should be considered as the protection range of the utility model.

Claims

1. An oil-free shuttle cooling structure, suitable for speed conditions including 10000 rpm, comprising a shuttle bed (1), a shuttle skin (2), a shuttle holder (3), a shuttle plate (4), characterized in that, The shuttle bed (1) is provided with a fan blade group (5), and the fan blade group (5) is used for sucking hot air from the inside of the shuttle or blowing air into the inside of the shuttle; the fan blade group (5) comprises blades (501), and the outer edges of the blades (501) do not exceed the running contour curved surface (S3) of the shuttle bed; The outer edges of the blades (501) exceed the running contour plane (S2) of the shuttle bed; The fan blade mounting surface (S1) is arranged on the shuttle bed (1), and the fan blade group (5) and the hooking part (S5) of the shuttle bed (1) are arranged in a staggered manner; The fan blade group (5) and the shuttle bed (1) are integrally arranged; The fan blade group (5) comprises a ring sleeve plate, the ring sleeve plate comprises an arc-shaped part and a flat plate part, the ring sleeve plate is sleeved on the root of the shuttle bed (1), and the blades (501) are arranged on the flat plate part.

2. An oil-free shuttle cooling structure according to claim 1, wherein The fan blade group (5) comprises a base plate, the base plate is a flat plate, the base plate is provided with mounting holes, and the blades (501) are arranged on the base plate; the base plate is installed on the fan blade mounting surface (S1) through fasteners (6).

3. An oil-free shuttle cooling structure according to claim 1, wherein The shuttle bed (1), the shuttle skin (2), the shuttle frame (3), the shuttle plate (4) or the fan blade group (5) is provided with a heat dissipation protrusion, and the heat dissipation protrusion does not interfere with the rotation of the shuttle, and is used for heat dissipation convection.

4. An oil-free shuttle cooling structure according to claim 1, wherein The target cooling part of the oil-free shuttle is provided with a thermoelectric cooling module, a liquid cooling evaporation module, a compressed air jet module, a heat pipe module or a sound wave cooling module, which is used for heat dissipation convection.

Images