Shuttle peg for light reflection bottom line detection and sewing machine bottom line detection device

Abstract

The utility model discloses a shuttle peg for light reflection bottom line detection and a sewing machine bottom line detection device, relates to the technical field of sewing machines, and aims to solve the problem that reflection paper on an existing shuttle peg is short in service life. The shuttle peg comprises a shuttle peg body, and the shuttle peg body comprises a winding shaft and baffles arranged at the two ends of the winding shaft; a wire winding groove is formed between the two baffles, the baffles are provided with light passing holes used for signal light to penetrate through, the wire winding shaft is provided with a reflecting layer used for reflecting the signal light, and the reflecting layer is provided with a transparent protection layer, so that the reflecting layer can be prevented from being in contact with the external environment, and the reflecting layer is prevented from being polluted by sundries such as oil and wire wool. Therefore, the service life of the shuttle peg is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field more specifically, relate to a shuttle for light reflection bottom thread detection and sewing machine bottom thread detection device. BACKGROUND

[0002] Sewing machine is with one or more sewing thread, on the seam material forms one or more stitches, makes one or more seam material interlaced or sewn together machine, ordinary sewing machine is the bottom thread on the shuttle and sewing thread on the sewing machine together sewn to form stitch, bottom thread is wound on the shuttle, shuttle cover is installed on the bobbin, bobbin is installed on the bottom plate of sewing machine, in the sewing process, the bottom thread reserve how much and whether it is not easy to observe, many times in the bottom thread has been used up the case sewing machine is still sewing, lead to the occurrence of empty seam phenomenon, not only affect the appearance of sewing fabric, also affect the sewing efficiency.

[0003] At present, the bottom thread detection of template machine is mostly realized by light reflection sensing mode, and reflective paper is attached on the shuttle for reflection, because the working environment of the shuttle has oil, thread hair and other sundries, and the environment is poor, so that the reflective paper is oxidized, polluted and damaged after being used for a period of time, resulting in the loss of bottom thread detection function and the reduction of bottom thread reserve detection precision and reliability.

[0004] Therefore, how to solve the problem of short service life of the reflective paper on the existing shuttle is an urgent problem to be solved by the technical personnel in the field at present. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a shuttle for light reflection bottom thread detection, which can avoid contact between the reflection layer and the external environment, avoid pollution of the reflection layer by oil, thread hair and other sundries, and thus improve the service time of the shuttle.

[0006] Another object of the utility model is to provide a sewing machine bottom thread detection device comprising the above-mentioned shuttle for light reflection bottom thread detection, which can improve the stability of the bottom thread detection function.

[0007] In order to realize the above-mentioned object, the utility model provides the following technical scheme:

[0008] A shuttle for light reflection bottom thread detection, comprising a shuttle body, the shuttle body comprises a winding shaft and a baffle arranged at both ends of the winding shaft, a winding groove is formed between the two baffles, a light passing hole for signal light to pass through is arranged on the baffle, a reflection layer for reflecting signal light is arranged on the winding shaft, and a transparent protective layer is arranged on the reflection layer.

[0009] Preferably, the light passing hole is provided with a plurality of light passing holes, and the plurality of light passing holes are uniformly arranged on the outer edge of the baffle.

[0010] Preferably, the light passing hole has a chamfered end, and the chamfered angles of the two ends of the light passing hole are the same.

[0011] Preferably, the middle part of the bobbin has a through hole, the light passing hole is arranged around the through hole, the distance from the light passing hole to the through hole is the same, and the through hole has a chamfered end.

[0012] Preferably, the shuttle body is an aluminum shuttle, and the shuttle body is a hard oxide structure.

[0013] Preferably, the shuttle body is an integrated cast structure.

[0014] Preferably, the reflection layer is a reflective paper, and the reflection layer is bonded to the bobbin.

[0015] Preferably, the transparent protective layer is a transparent plastic film, and the transparent protective layer is bonded to the reflection layer.

[0016] A sewing machine bottom thread detection device comprises the shuttle for light reflection bottom thread detection.

[0017] The shuttle for light reflection bottom thread detection comprises a shuttle body, the shuttle body comprises a bobbin and a baffle arranged at two ends of the bobbin, a winding groove is formed between the two baffles, in use, a bottom thread is wound on the winding groove, the baffle is provided with a light passing hole for signal light to pass through, the bobbin is provided with a reflection layer for reflecting signal light, the signal light passes through the light passing hole and directly strikes on the reflection layer of the bobbin, the reflection layer on the bobbin can reflect the incident signal light back along the incident direction, the reflection layer is provided with a transparent protective layer, the transparent protective layer isolates the reflection layer from the outside world and does not affect the direction of the signal light, so that the reflection layer is prevented from contacting the outside environment and being polluted by oil, thread hair and other impurities, thereby prolonging the service life of the shuttle body, when the signal light transmission is affected by oil stains and other impurities, the transparent protective layer can be cleaned and the shuttle can be used continuously. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0019] Figure 1 The structure diagram of the shuttle for light reflection bottom thread detection provided by the present application is shown.

[0020] Figure 2 The side view of the shuttle for light reflection bottom thread detection provided by the present application is shown.

[0021] Figure 3 A cross-sectional view of the bobbin for light reflection bottom thread detection provided by the utility model.

[0022] Reference signs:

[0023] 10 - signal light line;

[0024] 1 - bobbin body, 11 - winding shaft, 12 - baffle, 121 - light passing hole;

[0025] 2 - reflection layer;

[0026] 3 - transparent protective layer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0029] The core of the utility model is to provide a kind of bobbin for light reflection bottom thread detection, can avoid reflection layer 2 and contact with external environment, avoid being polluted reflection layer 2 by oil, thread hair and other sundries, to improve the service time of bobbin.The other core of the utility model is to provide a kind of sewing machine bottom thread detection device comprising the bobbin for light reflection bottom thread detection described above, can have the stability of the stability of bottom thread detection function.

[0030] Please refer to Figure 1 、 Figure 2 And Figure 3 A kind of bobbin for light reflection bottom thread detection comprising bobbin body 1.

[0031] Specifically, the bobbin body 1 includes a winding shaft 11 and a baffle plate 12 arranged at both ends of the winding shaft 11, and a winding groove is formed between the two baffle plates 12. In use, the bottom thread is wound on the winding groove, and the baffle plate 12 is provided with a light passing hole 121 for the signal light 10 to pass through. The winding shaft 11 is provided with a reflective layer 2 for reflecting the signal light 10. The signal light 10 passes through the light passing hole 121 and is directly incident on the reflective layer 2 of the winding shaft 11. The reflective layer 2 on the winding shaft 11 can reflect the incident signal light 10 back along the incident direction. The reflective layer 2 is provided with a transparent protective layer 3, which isolates the reflective layer 2 from the outside environment and does not affect the direction of the signal light 10. In this way, the reflective layer 2 can be prevented from being in contact with the external environment and being contaminated by oil, thread fluff and other impurities, thereby prolonging the service life of the bobbin body 1. When the signal light 10 is affected by oil stains and other impurities, the transparent protective layer 3 can be cleaned to continue use.

[0032] The bobbin for light reflection bottom thread detection arranged in the above manner increases the transparent protective layer 3 outside the reflective layer 2 to isolate the reflective layer 2 from the external environment, thereby protecting the reflective layer 2. This can prevent the reflective layer 2 from being affected by the external environment, greatly prolong the service life of the bobbin, and reduce the operation difficulty of the operator.

[0033] In the above embodiment, the light passing hole 121 is provided with a plurality of light passing holes 121, and the plurality of light passing holes 121 are uniformly arranged on the outer edge of the baffle plate 12.

[0034] It should be noted that in the present embodiment, only one baffle plate 12 is provided with a light passing hole 121, and four light passing holes 121 are provided. The four light passing holes 121 are uniformly arranged on the outer edge of the baffle plate 12. However, in actual application, this is not limited, as long as the above technical effects can be achieved.

[0035] The number of light passing holes 121 is not limited, but the more the better, and the more the better to reduce the weight.

[0036] In the above embodiment, the port of the light passing hole 121 has a chamfer, and the angles of the chamfers at both ends of the light passing hole 121 are the same.

[0037] It can be understood that by setting a chamfer on the port of the light passing hole 121, burrs can be removed to avoid cutting the user with the product, enhance the aesthetic feeling, and also enhance the durability and reliability.

[0038] Further, the winding shaft 11 has a through hole in the middle, the light passing holes 121 are arranged circumferentially around the through hole, and the distance from the through hole is the same. The port of the through hole has a chamfer.

[0039] It should be noted that by setting the chamfer on the through-hole end of the bobbin 11, the parts are more smooth during assembly, facilitating installation, having a guiding and positioning effect, and can also avoid stress concentration, effectively dispersing stress, avoiding damage and breakage during use.

[0040] In the above case, the bobbin body 1 is an aluminum bobbin, and the bobbin body 1 is a hard oxidation structure.

[0041] It can be understood that the bobbin body 1 is made of aluminum material to reduce weight, thereby reducing the moment of inertia, avoiding machine shutdown bobbin reverse rotation, in order to prevent the metal surface of the bobbin body 1 from reflecting light and causing interference, the surface treatment of the bobbin body 1 is usually dark and rough, and currently uses hard oxidation treatment.

[0042] On the basis of the above embodiment, the bobbin body 1 is an integral cast structure.

[0043] It should be noted that the bobbin body 1 is integrally formed by casting process, which can effectively reduce the cost and reduce the processing.

[0044] Further, the reflecting layer 2 is a reflecting paper, and the reflecting layer 2 is bonded to the bobbin 11.

[0045] It should be noted that the reflecting layer 2 is a sticker material, which can reflect the incident light back along the original direction, and the reflecting paper is directly bonded to the bobbin 11.

[0046] In the above embodiment, the transparent protective layer 3 is a transparent plastic film, and the transparent protective layer 3 is bonded to the reflecting layer 2.

[0047] It can be understood that the transparent protective layer 3 is a transparent plastic film, which is convenient for processing and production, and has low cost, and the transparent protective layer 3 is directly bonded to the reflecting paper.

[0048] In summary, the bobbin for light reflection bottom line detection provided by the utility model separates the reflecting layer 2 from the outside world through the transparent protective layer 3, and does not affect the direction of the signal light 10, so that the reflecting layer 2 is prevented from contacting the outside environment and being polluted by oil, thread hair and other impurities, thereby prolonging the service life of the bobbin, and when the oil stains and other impurities affect the transmission of the signal light 10, the transparent protective layer 3 can be cleaned and then used, thereby greatly improving the stability of the bottom line detection function.

[0049] In addition to the bobbin for light reflection bottom line detection disclosed in the above embodiments, the utility model also provides a sewing machine bottom line detection device comprising the above bobbin for light reflection bottom line detection, and the structures of other parts of the sewing machine bottom line detection device refer to the prior art, which will not be described herein.

[0050] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same or similar reference numerals are used in the drawings and description to refer to the same or like parts, components and operations.

[0051] The above describes in detail the bobbin and sewing machine bottom thread detection device for light reflection bottom thread detection provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper. The above embodiment description is only used to help understand the method and core idea of the utility model. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the utility model without departing from the principle of the utility model. These improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A bobbin for detecting light reflection baselines, characterized in that, The bobbin body (1) includes a winding shaft (11) and baffles (12) at both ends of the winding shaft (11). A winding groove is formed between the two baffles (12). The baffles (12) are provided with light-passing holes (121) for signal light (10) to pass through. The winding shaft (11) is provided with a reflective layer (2) for reflecting the signal light (10). The reflective layer (2) is provided with a transparent protective layer (3).

2. The bobbin for detecting light reflection baselines according to claim 1, characterized in that, The light-passing holes (121) are provided in a plurality of manner, and the plurality of light-passing holes (121) are evenly arranged on the outer edge of the baffle (12).

3. The bobbin for detecting light reflection baseline according to claim 2, characterized in that, The port of the light-passing hole (121) has a chamfer, and the chamfers at both ends of the light-passing hole (121) have the same angle.

4. The bobbin for detecting light reflection baseline according to any one of claims 1-3, characterized in that, The winding shaft (11) has a through hole in the middle, and the light-passing hole (121) is arranged around the through hole in the circumferential direction and is at the same distance from the through hole. The port of the through hole has a chamfer.

5. The bobbin for detecting light reflection baselines according to claim 1, characterized in that, The bobbin body (1) is an aluminum bobbin, and the bobbin body (1) has a hard anodized structure.

6. The bobbin for detecting light reflection baselines according to claim 5, characterized in that, The bobbin body (1) is an integrally cast structure.

7. The bobbin for detecting light reflection baselines according to claim 1, characterized in that, The reflective layer (2) is reflective paper, and the reflective layer (2) is bonded to the winding shaft (11).

8. The bobbin for detecting light reflection baseline according to claim 7, characterized in that, The transparent protective layer (3) is a transparent plastic film, and the transparent protective layer (3) is bonded to the reflective layer (2).

9. A sewing machine thread detection device, characterized in that, Includes the bobbin for detecting light reflection baseline as described in any one of claims 1-8.

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