Rotating shuttle device and computerized embroidery machine

Abstract

The utility model discloses a rotating shuttle device and a computerized embroidery machine. The rotating shuttle device comprises a rotating shuttle, a thread buckling fork and a transmission mechanism, the thread buckling fork is provided with a first working switching position, a second working switching position and a shuttle peg replacing switching position which are arranged in sequence, and when the thread buckling fork is located at the first working switching position, the thread buckling fork abuts against the shuttle peg; when the thread buckling fork is located at the second working switching position, the thread buckling fork is arranged close to the shuttle core cavity; when the thread buckling fork is located at the shuttle peg replacement switching position, the thread buckling fork is arranged far away from the shuttle peg cavity. The thread buckling fork is connected to the transmission mechanism, and under a first preset condition, the transmission mechanism enables the thread buckling fork to be switched between a first working switching position and a second working switching position; under the second preset condition, the transmission mechanism enables the thread buckling fork to be switched between the second working switching position and the shuttle peg replacing switching position. According to the embodiment, the difficulty of replacing the shuttle peg is reduced, the labor intensity of operators is reduced, the time of replacing the shuttle peg is shortened, and the embroidery efficiency of the computerized embroidery machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of computer embroidery machines, in particular to a rotary shuttle device and a computer embroidery machine. Background Art

[0002] The computer embroidery machine includes a rotary shuttle device and a machine head, wherein the machine needle of the machine head matches the rotary shuttle of the rotary shuttle device to complete the knotting of the embroidery thread. The rotary shuttle has a bobbin cavity, the bobbin is installed in the bobbin cavity, and the embroidery thread is wound on the bobbin.

[0003] In the related art, after the embroidery thread on the bobbin is used up, the operator needs to disassemble some parts of the rotary shuttle device to replace the new bobbin, which is troublesome and increases the labor intensity of the operator. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a rotary shuttle device and a computer embroidery machine, which reduces the difficulty of replacing the bobbin, reduces the labor intensity of the operator, shortens the time of replacing the bobbin, and improves the embroidery efficiency of the computer embroidery machine.

[0005] The rotary hook device according to the embodiment of the first aspect of the utility model includes a rotary hook, a thread-locking fork and a transmission mechanism.

[0006] The rotary hook has a bobbin cavity, and the bobbin cavity is used for installing a bobbin.

[0007] The thread fork has a first working switching position, a second working switching position and a bobbin replacement switching position which are sequentially arranged. When the thread fork is in the first working switching position, the thread fork abuts against the bobbin; when the thread fork is in the second working switching position, the thread fork is arranged close to the bobbin cavity; when the thread fork is in the bobbin replacement switching position, the thread fork is arranged away from the bobbin cavity;

[0008] The thread fork is connected to the transmission mechanism. In a first preset situation, the transmission mechanism enables the thread fork to switch between the first working switching position and the second working switching position; in a second preset situation, the transmission mechanism enables the thread fork to switch between the second working switching position and the bobbin core replacement switching position.

[0009] In this embodiment, by keeping the thread detent fork away from the bobbin cavity, there is enough space for replacing the bobbin to avoid interference and influence from the thread detent fork. The operation is simple and convenient, and it is convenient for the operator to replace the bobbin, thereby reducing the operator's labor intensity.

[0010] According to some embodiments of the utility model, the transmission mechanism makes the thread fastening fork swing around its rotation axis, and the thread fastening portion of the thread fastening fork forms a thread fastening arc trajectory, the first working switching position is located at one end of the thread fastening arc trajectory, the bobbin core replacement switching position is located at the other end of the thread fastening arc trajectory, and the second working switching position is located between the two ends of the thread fastening arc trajectory.

[0011] According to some embodiments of the present invention, a center angle corresponding to a portion of the thread buckle arc trajectory between the second working switching position and the bobbin replacement switching position is between 45° and 180°.

[0012] According to some embodiments of the present invention, a central angle corresponding to a portion of the thread buckle arc trajectory between the second working switching position and the bobbin replacement switching position is 180°.

[0013] According to some embodiments of the present utility model, the transmission mechanism includes a rotating shaft and a driving member, the driving member is connected to the rotating shaft to rotate the rotating shaft by a preset angle, and the hinged portion of the wire buckle fork is sleeved on the rotating shaft.

[0014] According to some embodiments of the utility model, a rotary shuttle frame is further included, wherein the rotary shuttle is installed in a rotary shuttle chamber of the rotary shuttle frame, and the rotating shaft is located at the front side of the rotary shuttle frame.

[0015] According to some embodiments of the utility model, a plurality of rotary hooks are provided, and the plurality of rotary hooks are arranged in sequence along the length direction of the rotating shaft;

[0016] A plurality of thread-locking forks are provided, and the thread-locking forks correspond to the rotary hooks one by one, and the hinged parts of the thread-locking forks are sleeved on the rotating shaft.

[0017] The computer embroidery machine according to the embodiment of the second aspect of the utility model comprises the rotary shuttle device in the first aspect.

[0018] Additional aspects and advantages of the present invention will be given in the following description, will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic diagram of a rotary hook device according to an embodiment of the utility model Figure 1 ;

[0021] Figure 2 A schematic diagram of a rotary hook device according to an embodiment of the utility model Figure 2 ;

[0022] Figure 3 is a schematic diagram of a rotary hook according to an embodiment of the utility model;

[0023] Figure 4 is a schematic diagram of a thread-locking fork in a first working switching position according to an embodiment of the utility model;

[0024] Figure 5 is a schematic diagram of a wire buckle fork in a second working switching position according to an embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of a thread buckle fork in a bobbin replacement switching position according to an embodiment of the utility model;

[0026] Reference numerals:

[0027] Rotary hook device 100;

[0028] Rotating hook frame 10, thread buckling fork 20, thread buckling part 21, hinge part 22;

[0029] Transmission mechanism 30, rotating shaft 31, thread trimmer pull rod shaft 40, support rod 50, rotary hook 60;

[0030] Bobbin 200. Implementation

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0033] The following is combined with Figure 1-6 , describing the first aspect of the rotary hook device 100 provided by an embodiment of the utility model, including: a rotary hook 60, a thread buckle fork 20 and a transmission mechanism 30.

[0034] The rotary hook 60 has a bobbin cavity 601 , and the bobbin cavity 601 is used for installing the bobbin 200 .

[0035] The thread fork 20 has a first working switching position, a second working switching position and a bobbin replacement switching position which are arranged in sequence. When the thread fork 20 is in the first working switching position, the thread fork 20 is against the bobbin 200; when the thread fork 20 is in the second working switching position, the thread fork 20 is arranged close to the bobbin cavity 601; when the thread fork 20 is in the bobbin replacement switching position, the thread fork 20 is arranged away from the bobbin cavity 601.

[0036] The thread fork 20 is connected to the transmission mechanism 30. In the first preset condition, the transmission mechanism 30 enables the thread fork 20 to switch between the first working switching position and the second working switching position; in the second preset condition, the transmission mechanism 30 enables the thread fork 20 to switch between the second working switching position and the bobbin replacement switching position.

[0037] It should be noted that the thread buckle fork 20 includes a hinge portion 22 and a thread buckle portion 21 .

[0038] The transmission mechanism 30 makes the thread-fastening part 21 of the thread-fastening fork 20 swing around its rotation axis. The thread-fastening part 21 of the thread-fastening fork 20 forms a thread-fastening arc track, the first working switching position is located at one end of the thread-fastening arc track, the bobbin replacement switching position is located at the other end of the thread-fastening arc track, and the second working switching position is located between the two ends of the thread-fastening arc track.

[0039] In practical applications, such as Figure 4 and Figure 5 As shown, when the rotary shuttle device 100 cooperates with the machine head for embroidery, the thread buckle fork 20 reciprocates between the first working switching position and the second working switching position. At the current moment, that is, in the first preset situation.

[0040] The hinged portion 22 of the thread fork 20 is hinged, and the thread fork 20 swings back and forth between the first working switching position and the second working switching position. In the second working switching position, the thread fork 20 is arranged close to the bobbin cavity 601, and there is a first preset distance between the two in the front-to-back direction.

[0041] like Figure 5 and Figure 6 As shown, when the embroidery thread on the bobbin 200 is used up, the thread buckle fork 20 reciprocates between the second working switching position and the bobbin replacement switching position. At the current moment, that is, in the second preset situation.

[0042] The thread fork 20 reciprocates between the second working switching position and the bobbin replacement switching position. In the bobbin replacement switching position, the thread fork 20 is set far away from the bobbin cavity 601, and there is a second preset distance between the two in the front-to-back direction, and the second preset distance is greater than the first preset distance. In this way, the thread fork 20 is far away from the bobbin cavity 601, and there is enough space to replace the bobbin 200, avoiding interference and influence from the thread fork 20, and the operation is simple and convenient. At the same time, it is convenient for the operator to replace the bobbin 200, reducing the labor intensity of the operator.

[0043] It should be noted that when replacing the bobbin 200, the bobbin replacement device can cooperate with the thread fork 20 in the bobbin replacement switching position, and the bobbin replacement device can remove the old bobbin 200 and then replace it with a new bobbin 200. Such a setting can further improve the degree of automation and greatly reduce the labor intensity of the operator.

[0044] According to some embodiments of the present invention, the center angle corresponding to the partial thread-fastening arc trajectory between the second working switching position and the bobbin replacement switching position is between 45° and 180°.

[0045] Among them, preferably, Figure 6 As shown, the central angle of the part of the thread-locking arc track between the second working switching position and the bobbin replacement switching position is 180°. In this way, the second preset distance between the thread-locking fork 20 and the bobbin cavity 601 can be maximized, and at the same time, the thread-locking fork 20 is completely located directly below the bobbin cavity 601, which can maximize the operating space for replacing the bobbin 200.

[0046] According to some embodiments of the present invention, the transmission mechanism 30 includes a rotating shaft 31 and a driving member, the driving member is connected to the rotating shaft 31 to rotate the rotating shaft 31 to a preset angle, and the hinge portion 22 of the thread detent fork 20 is sleeved on the rotating shaft 31 .

[0047] It should be noted that in practical applications, Figure 1 and Figure 2 As shown, the rotary shuttle device 100 further includes a rotary shuttle frame 10 , on which a plurality of arranged rotary shuttle chambers are provided, and a rotary shuttle 60 is installed in each rotary shuttle chamber.

[0048] The transmission mechanism 30 can be located at the front side of the rotary hook frame 10, and the rotating shaft 31 of the transmission mechanism 30 is lower than the rotary hook frame 10 in the vertical direction. The rotating shaft 31 is arranged with a plurality of thread forks 20 in sequence along the length direction thereof, and the hinged portion 22 of the thread fork 20 is sleeved on the rotating shaft 31. The thread forks 20 correspond to the rotary hook chambers one by one. Among them, the plurality of rotary hooks 60 are arranged along the length extension direction of the rotating shaft 31.

[0049] The driving member can be a motor, which drives the rotating shaft 31 to rotate, so that the rotating shaft 31 can rotate a preset angle, thereby driving the thread fastening part 21 of the thread fastening fork 20 to accurately be in the first working switching position, the second working switching position and the bobbin replacement switching position.

[0050] Of course, it is understandable that the transmission mechanism 30 can be a connecting rod structure, a gear mechanism, etc. The connecting rod mechanism or the gear mechanism includes the above-mentioned rotating shaft 31, so that the rotating shaft 31 rotates, thereby driving the thread fastening part 21 of the thread fastening fork 20 to be accurately in the first working switching position, the second working switching position and the bobbin core replacement switching position.

[0051] Such arrangement can realize the cooperation between one rotary hook 60 and one thread fork 20, can reduce the distance between two adjacent rotary hooks 60, and can be adapted to computer embroidery machines with small head distance. Among them, the small head distance refers to the small distance between two adjacent machine heads.

[0052] In addition, if Figure 1 and Figure 2 As shown, the rotary shuttle device 100 also includes a thread trimmer pull rod shaft 40, which is arranged parallel to the rotating shaft 31. From top to bottom, the rotary shuttle frame 10, the thread trimmer pull rod shaft 40, and the rotating shaft 31 are arranged in sequence, and from back to front, the rotary shuttle frame 10, the thread trimmer pull rod shaft 40, and the rotating shaft 31 are arranged in sequence.

[0053] A support rod 50 is connected to the rotary hook frame 10. The support rod 50 is provided with a first through hole through which the thread trimmer pull rod shaft 40 can pass and a second through hole through which the rotating shaft 31 can pass. In this way, the support rod 50 supports the rotating shaft 31 without interfering with the movement of the thread trimmer pull rod shaft 40, so that the rotating shaft 31 maintains its straightness, which helps the thread fastening part 21 of each thread fastening fork 20 on the rotating shaft 31 to be accurately in the first working switching position, the second working switching position and the bobbin replacement switching position.

[0054] The computer embroidery machine of the second aspect provided by the embodiment of the utility model comprises the rotary shuttle device 100 of the first aspect. The computer embroidery machine has the advantages of the rotary shuttle device 100.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0057] In the description of the present invention, "plurality" means two or more.

[0058] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0059] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", "some examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotary hook device, characterized in that: include: A rotary hook, wherein the rotary hook has a bobbin cavity, and the bobbin cavity is used for installing a bobbin; A thread fork, wherein the thread fork has a first working switching position, a second working switching position and a bobbin replacement switching position which are sequentially arranged, and when the thread fork is in the first working switching position, the thread fork abuts against the bobbin; when the thread fork is in the second working switching position, the thread fork is arranged close to the bobbin cavity; when the thread fork is in the bobbin replacement switching position, the thread fork is arranged away from the bobbin cavity; a transmission mechanism, the thread fork being connected to the transmission mechanism, and in a first preset condition, the transmission mechanism enables the thread fork to switch between the first working switching position and the second working switching position; In a second preset condition, the transmission mechanism enables the thread buckle fork to switch between the second working switching position and the bobbin replacement switching position.

2. The rotary hook device according to claim 1, characterized in that: The transmission mechanism causes the thread fork to swing around its rotation axis, and the thread fastening portion of the thread fastening fork forms a thread fastening arc trajectory. The first working switching position is located at one end of the thread fastening arc trajectory, the bobbin core replacement switching position is located at the other end of the thread fastening arc trajectory, and the second working switching position is located between the two ends of the thread fastening arc trajectory.

3. The rotary hook device according to claim 2, characterized in that: The center angle of the portion of the thread buckle arc trajectory between the second working switching position and the bobbin replacement switching position is between 45° and 180°.

4. The rotary hook device according to claim 3, characterized in that: The central angle of the portion of the thread buckle arc trajectory between the second working switching position and the bobbin replacement switching position is 180°.

5. The rotary hook device according to claim 2, characterized in that: The transmission mechanism comprises a rotating shaft and a driving member, wherein the driving member is connected to the rotating shaft so as to rotate the rotating shaft by a preset angle, and the hinged portion of the thread buckle fork is sleeved on the rotating shaft.

6. The rotary hook device according to claim 5, characterized in that: It also includes a rotary shuttle frame, the rotary shuttle is installed in a rotary shuttle chamber of the rotary shuttle frame, and the rotating shaft is located at the front side of the rotary shuttle frame.

7. The rotary hook device according to claim 5, characterized in that: A plurality of rotary hooks are provided, and the plurality of rotary hooks are arranged in sequence along the length direction of the rotating shaft; A plurality of thread-locking forks are provided, and the thread-locking forks correspond to the rotary hooks one by one, and the hinged parts of the thread-locking forks are sleeved on the rotating shaft.

8. A computer embroidery machine, characterized in that: The invention comprises a rotary shuttle device according to any one of claims 1 to 7.

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