Computerized embroidery machine and machine head thereof

Abstract

The utility model discloses a computerized embroidery machine and a machine head thereof. The machine head comprises a guide rod, a needle rod driver, a needle rod, a transmission block and a driving mechanism, wherein the guide rod is sleeved with the needle rod driver; the transmission block is fixedly connected to the needle rod; the guide rod and the needle rod are arranged in parallel, the needle rod driver reciprocates along the guide rod and has the highest position, and the needle rod driver is provided with a clamping groove. And the driving mechanism is matched with the needle rods, so that the transmission block on the needle rod at the preset position can be matched with the clamping groove of the needle rod driver at the highest position in an embedding and inserting manner. The machine head of the computerized embroidery machine does not need to be provided with a buffer pad and a top dead center, so that noise generated by collision between the top dead center and the buffer pad is avoided; meanwhile, the structural complexity of the machine head is reduced, and the assembling efficiency of the machine head can be improved.

Description

Technical Field

[0001] This utility model generally relates to the field of computerized embroidery machine technology, and more particularly to a computerized embroidery machine and its head. Background Technology

[0002] In related technologies, an upper stop and a lower stop are fixedly installed on the needle bar, both located below the crossbeam of the needle bar holder. A buffer pad is provided between the upper stop and the crossbeam. To allow the needle bar to move up and down, the needle bar driver moves to a position corresponding to the height of the lower stop. The needle bar driver can then rotate to allow the lower stop to engage in the slot of the needle bar driver, thus enabling the needle bar to move up and down following the needle bar driver.

[0003] The above structure has a collision problem between the top dead center and the buffer pad, which generates continuous impact noise. Utility Model Content

[0004] This application aims to provide a computerized embroidery machine and its head, which at least avoids noise generated by the collision between the upper stop point and the buffer pad.

[0005] This utility model provides a machine head for a computerized embroidery machine, comprising: a guide rod, a needle bar driver sleeved on the guide rod, a needle bar, a transmission block fixedly connected to the needle bar, and a drive mechanism.

[0006] The guide rod is arranged parallel to the needle bar, the needle bar driver reciprocates along the guide rod to reach its highest position, and the needle bar driver is provided with a slot.

[0007] The drive mechanism cooperates with the needle bar, so that the transmission block on the needle bar in the preset position can be inserted into the slot of the needle bar driver in the highest position.

[0008] As one possible implementation, the drive mechanism is positioned near the top of the needle bar.

[0009] As one possible implementation, the drive mechanism includes a movable end having an initial position and a pressing position.

[0010] The movable end is in the initial position, and there is a gap between the movable end and the top of the needle bar; the movable end is in the pressing position, and the movable end presses against the top of the needle bar to move the needle bar to the preset position.

[0011] As an implementation method, the movable end is in flexible contact with the top of the needle bar, and at least one of the movable end and the top of the needle bar is provided with an elastic element.

[0012] As an implementation method, the movable end reciprocates in the extension direction of the needle bar, and the driving mechanism is a telescopic mechanism, which includes an electromagnetic telescopic mechanism, a pneumatic telescopic mechanism, a hydraulic telescopic mechanism, and an electric telescopic mechanism.

[0013] As one possible implementation, the electromagnetic telescopic mechanism includes a telescopic rod, which extends by being attracted to an iron core by an electromagnetic coil, or retracts by being ejected from the iron core by a spring after power is cut off.

[0014] As one possible implementation, a plurality of needle bars are provided. The plurality of needle bars are arranged in the same direction, and the drive mechanism can cooperate with any one of the plurality of needle bars.

[0015] As an alternative implementation, a housing and a support frame are also included. The guide rod and the needle bar driver are located inside the housing, the support frame is located on top of the housing and is connected to the housing, and the drive mechanism is connected to the support frame.

[0016] This utility model also provides a computerized embroidery machine, including the machine head of the aforementioned computerized embroidery machine.

[0017] As another possible implementation, a main beam is also included. The drive mechanism is connected to a support frame, which is connected to the housing or to the main beam.

[0018] The above solution uses a drive mechanism that works in conjunction with the needle bar to move the needle bar downwards. When the needle bar reaches the preset position, the transmission block on the needle bar can engage with the slot of the needle bar driver at the highest position. The machine head of the computerized embroidery machine does not need to be equipped with a buffer pad or an upper stop, thus avoiding noise caused by the collision between the upper stop and the buffer pad; at the same time, it reduces the complexity of the machine head structure and helps to improve the assembly efficiency of the machine head. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 A left view of the head of a computerized embroidery machine provided for an embodiment of this utility model;

[0021] Figure 2 An isometric drawing of the head of a computerized embroidery machine provided for an embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the internal structure of the head of a computerized embroidery machine provided for an embodiment of this utility model;

[0023] Figure 4A front view of the head of a computerized embroidery machine provided for an embodiment of this utility model;

[0024] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0025] Guide rod 10, needle bar driver 20, slot 21, needle bar 30, transmission block 40;

[0026] Needle bar frame 50, crossbeam 51, drive mechanism 60, movable end 61, telescopic rod 62, elastic element 63;

[0027] 70 housing, 80 support frame, 91 cam, 92 linkage mechanism. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] In related technologies, the needle bar 30 is fixedly equipped with an upper stop point and a lower stop point, both located below the crossbeam 51 of the needle bar holder 50. A buffer pad is provided between the upper stop point and the crossbeam 51. To allow the needle bar 30 to move up and down, the needle bar driver 20 moves to a position corresponding to the height of the lower stop point. The needle bar driver 20 can then rotate, causing the lower stop point to engage with the slot 21 of the needle bar driver 20, allowing the needle bar 30 to move up and down following the needle bar driver 20. This structure suffers from the problem of the upper stop point colliding with the buffer pad, resulting in continuous impact noise.

[0031] Based on this, this utility model provides a machine head for a computerized embroidery machine. A drive mechanism 60 cooperates with a needle bar 30, causing the needle bar 30 to move downwards. When the needle bar 30 moves to a preset position, the transmission block 40 on the needle bar 30 can engage with the slot 21 of the needle bar driver 20 at its highest position. This application eliminates the need for a buffer pad and an upper stop point, thus avoiding noise generated by the collision between the upper stop point and the buffer pad; it also reduces the complexity of the machine head structure and helps improve the assembly efficiency of the machine head.

[0032] At least see Figures 1-5As shown, the head of a computerized embroidery machine includes a housing 70, a cam 91, a linkage mechanism 92, a guide rod 10, a needle bar driver 20, a needle bar 30, a transmission block 40, a needle bar frame 50, and a drive mechanism 60.

[0033] The needle bar 30 is mounted on the needle bar holder 50, and the length of the needle bar 30 extends vertically. The housing 70 has a receiving cavity, and the needle bar holder 50 is disposed at the opening of the receiving cavity. The cam 91, the linkage mechanism 92, the guide rod 10, and the needle bar driver 20 are located within the aforementioned receiving cavity.

[0034] The guide rod 10 is arranged parallel to the needle bar 30, and the length of the guide rod 10 also extends vertically. The needle bar driver 20 is sleeved on the guide rod 10, and the transmission block 40 is fixedly connected to the needle bar 30. This transmission block 40 is equivalent to the lower stop point in related technologies. A linkage mechanism 92 is provided between the cam 91 and the needle bar driver 20. The linkage mechanism 92 connects the cam 91 and the needle bar driver 20. When the cam 91 rotates, the needle bar driver 20 reciprocates along the guide rod 10 through the linkage mechanism 92, thus allowing the needle bar driver 20 to have a highest position and a lowest position.

[0035] Among them, such as Figure 3 As shown, the drive mechanism 60 can be located above the needle bar 30, or the drive mechanism 60 can be located close to the needle bar 30.

[0036] The drive mechanism 60 includes a movable end 61, which has an initial position and a pressing position. In the initial position, the movable end 61 has a gap with the tip of the needle bar 30. Figure 4 and Figure 5 As shown; the movable end 61 is in the pressing position, pressing against the top of the needle bar 30 to move the needle bar 30 to a preset position. In this way, the movable end 61 switches between the initial position and the pressing position, which can accurately move the needle bar 30 to the preset position, so that the transmission block 40 on the needle bar 30 in the preset position can be engaged with the slot 21 of the needle bar driver 20 in the highest position.

[0037] The drive mechanism 60 can be a telescopic mechanism, which includes a telescopic rod 62. The movable end 61 of the telescopic rod 62 extends and presses against the top of the needle bar 30, causing the needle bar 30 to move downward to a preset position. The movable end 61 of the telescopic rod 62 retracts, and the needle bar 30 returns to its original position via a spring. Examples include electromagnetic telescopic mechanisms, pneumatic telescopic mechanisms, hydraulic telescopic mechanisms, and electric telescopic mechanisms. The drive mechanism 60 can also be a swing mechanism, which includes a swing arm. One end of the swing arm swings around the other end, and one end of the swing arm serves as the movable end 61. One end of the swing arm presses against the top of the needle bar 30, causing the needle bar 30 to move downward to a preset position. The swing arm returns to its original position, and the needle bar 30 returns to its original position via a spring. The drive mechanism 60 can also be other suitable mechanisms, which will not be described in detail in this embodiment.

[0038] The following embodiments use the drive mechanism 60 as an electromagnetic telescopic mechanism for illustration:

[0039] like Figure 3 As shown, a support frame 80 is provided on the top of the housing 70, and an electromagnetic telescopic mechanism is installed on the support frame 80. The telescopic rod 62 of the electromagnetic telescopic mechanism reciprocates in the vertical direction.

[0040] The electromagnetic telescopic mechanism includes a telescopic rod 62, the length of which is set vertically. The lower end of the telescopic rod 62 serves as a movable end 61. A magnetic field generated by an electromagnetic coil attracts the iron core to extend the telescopic rod 62, or, after power is cut off, a spring resets and ejects the iron core to retract the telescopic rod 62.

[0041] Of course, it is understandable that the support frame 80 can also be connected to the main beam, and this embodiment does not limit this.

[0042] In practical applications, such as Figure 3 and Figure 4 As shown, the needle bar holder 50 is provided with multiple needle bars 30, which are arranged in the same direction, and also in the left-right direction. The needle bar holder 50 can reciprocate left and right relative to the housing 70, so that each needle bar 30 can be correspondingly set with the telescopic rod 62 of the electromagnetic telescopic mechanism. Thus, the electromagnetic telescopic mechanism enables the transmission block 40 on each needle bar 30 to engage with the slot 21 of the needle bar driver 20 at the highest position.

[0043] It should be noted that when the telescopic rod 62 is in its initial position, there is a gap between the lower end of the telescopic rod 62 and the top end of the needle bar 30. This can avoid interference between the lower end of the telescopic rod 62 and the top end of the needle bar 30, and avoid the lower end of the telescopic rod 62 affecting the movement of the needle bar holder 50.

[0044] In some embodiments, the movable end 61 makes flexible contact with the tip of the needle bar 30.

[0045] For example, such as Figure 4 As shown, an elastic element 63 is installed on the movable end 61. The elastic element 63 can be a rubber pad, silicone pad, sponge, etc. When the movable end 61 contacts the tip of the needle bar 30, the two make flexible contact to avoid collision and noise.

[0046] Of course, it is understandable that an elastic element 63 is installed at the top of the needle bar 30, or that an elastic element 63 is installed at the top of the needle bar 30 and on the movable end 61 respectively.

[0047] This utility model example also provides a computerized embroidery machine, which includes the aforementioned machine head and has the advantages of the aforementioned machine head.

[0048] The computer embroidery machine of this application does not require a buffer pad or upper stop point in its head, thereby avoiding noise generated by the collision between the upper stop point and the buffer pad; at the same time, it reduces the complexity of the head structure and helps to improve the assembly efficiency of the head.

[0049] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, 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. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A machine head for a computerized embroidery machine, characterized in that, include: Guide rod (10), needle bar driver (20) sleeved on the guide rod (10), needle bar (30), transmission block (40) fixedly connected to the needle bar (30) and drive mechanism (60). The guide rod (10) is arranged parallel to the needle bar (30), the needle bar driver (20) reciprocates along the guide rod (10) and has the highest position, and the needle bar driver (20) is provided with a slot (21). The drive mechanism (60) cooperates with the needle bar (30) so that the transmission block (40) on the needle bar (30) in the preset position can be inserted into the slot (21) of the needle bar driver (20) in the highest position.

2. The machine head of the computerized embroidery machine according to claim 1, characterized in that, The drive mechanism (60) is located near the top of the needle bar (30).

3. The machine head of the computerized embroidery machine according to claim 2, characterized in that, The drive mechanism (60) includes a movable end (61) having an initial position and a pressing position. The movable end (61) is in the initial position, and there is a gap between the movable end (61) and the top of the needle bar (30); the movable end (61) is in the pressing position, and the movable end (61) presses against the top of the needle bar (30) so that the needle bar (30) moves to the preset position.

4. The machine head of the computerized embroidery machine according to claim 3, characterized in that, The movable end (61) is in flexible contact with the top end of the needle bar (30), and at least one of the movable end (61) and the top end of the needle bar (30) is provided with an elastic element (63).

5. The machine head of the computerized embroidery machine according to claim 4, characterized in that, The movable end (61) reciprocates in the extension direction of the needle bar (30). The drive mechanism (60) is a telescopic mechanism, which includes an electromagnetic telescopic mechanism, a pneumatic telescopic mechanism, a hydraulic telescopic mechanism, and an electric telescopic mechanism.

6. The machine head of the computerized embroidery machine according to claim 5, characterized in that, The electromagnetic telescopic mechanism includes a telescopic rod (62), which is activated by an electromagnetic coil to attract the iron core so that the telescopic rod (62) extends, or is deactivated by a spring to release the iron core so that the telescopic rod (62) retracts.

7. The machine head of the computerized embroidery machine according to any one of claims 1-6, characterized in that, Multiple needle bars (30) are provided. The plurality of needle bars (30) are arranged in the same direction, and the drive mechanism (60) can cooperate with any of the plurality of needle bars (30).

8. The machine head of the computerized embroidery machine according to claim 7, characterized in that, It also includes the housing (70) and the support frame (80). The guide rod (10) and the needle bar driver (20) are located inside the housing (70), the support frame (80) is located on the top of the housing (70), the support frame (80) is connected to the housing (70), and the drive mechanism (60) is connected to the support frame (80).

9. A computerized embroidery machine, characterized in that, The machine head of the computerized embroidery machine as described in any one of claims 1-8.

10. The computerized embroidery machine according to claim 9, characterized in that, Also includes the main beam, The drive mechanism (60) is connected to the support frame (80), which is connected to the housing (70) or the main beam.

Images