CN206417725U - Yarns take-off device - Google Patents

Abstract

The utility model discloses a yarn unwinding device. The yarn unwinding device includes an unwinding device body with a circular outer circumference and an insertion structure arranged on one axial side of the unwinding device body and extending in the axial direction. The insertion structure is used to be inserted into the bobbin to install the body of the unwinding device on the bobbin. The plug-in structure is located on the radial inner side of the circular outer circumference. The free end of the unwinding device body, wherein, in the direction from the connecting end to the free end, the distance between the two furthest points on the outer circumference of at least part of the cross-section of the insertion section of the insertion structure decreases gradually along the axial direction. The yarn unwinding device of the utility model is equipped with an insertion structure and the insertion structure is located on the radial inner side of the circular outer circumference, so the yarn is unwound through the outer circumference of the unwinding device body, so that the adhesion between the yarns is less , thereby reducing yarn breakage.

Description

Yarn unwinding device

technical field

The utility model relates to the textile field, in particular to a yarn unwinding device.

Background technique

Artificial turf is a lawn made of non-living plastic chemical fiber products. Artificial turf does not need to consume the necessary fertilizers, water and other resources for growth like natural turf. It can meet the needs of high-intensity sports 24 hours a day. It is easy to maintain, drains quickly, and has excellent flatness. It is precisely because of the above advantages that artificial turf has , Therefore, it is widely used in dedicated venues for hockey, baseball, and rugby, as well as public driving ranges for football, tennis, golf and other sports.

The weaving of artificial turf is accomplished by tufting machines, but when the yarn is unwound from the bobbin, the tension on the yarn is very large, and the twisting between the yarns is relatively large, so the yarn is unwound When the yarn is easily broken, it needs to stop the machine to pick up the yarn, which seriously affects the working efficiency of the tufting machine.

Utility model content

The purpose of the utility model is to provide a yarn unwinding device to reduce yarn breakage when the yarn is unwound.

The utility model provides a yarn unwinding device, which comprises an unwinding device body with a circular outer periphery and an insertion structure arranged on one axial side of the unwinding device body and extending in the axial direction. The insertion structure is used for inserting It is installed in the bobbin to install the body of the unwinding device on the bobbin. The insertion structure is located on the radial inner side of the circular outer circumference. end, wherein, in the direction from the connecting end to the free end, the distance between the two furthest points on the outer circumference of at least part of the cross-section of the insertion section of the insertion structure gradually decreases in the axial direction.

Further, at least part of the inserting section includes a rotating body whose axis extends from the connection end to the free end, and the generatrix of the rotating body is a straight line segment or a smooth curve segment gradually approaching the axis of the rotating body from the connecting end to the free end.

Further, at least part of the insertion section includes a conical structure.

Further, the rotating body is arranged coaxially with the circular outer circumference of the unwinding device body.

Further, at least part of the insertion section further includes at least two clamping strips arranged on the outer wall of the rotating body and extending from the connection end to the free end, and the at least two clamping strips are distributed at intervals in the circumferential direction of at least part of the insertion section.

Further, in the direction from the connection end to the free end, the thickness of the clip strip in the radial direction becomes gradually smaller.

Further, the body of the unwinding device includes an unwinding ring, a circular outer circumference is set on the unwinding ring, and the insertion structure is connected to the unwinding ring through a connecting structure.

Further, the connecting structure includes more than two connecting bars arranged at intervals in the circumferential direction of the unwinding ring, the first end of the connecting bar is fixedly connected to the unwinding ring, and the second end of the connecting bar is fixedly connected to the connecting end of the insertion structure .

Further, the radius of the circular outer circumference of the unwinding device body is 100-200mm.

The yarn unwinding device provided by the utility model comprises an unwinding device body with a circular outer circumference and an insertion structure arranged on one axial side of the unwinding device body and extending in the axial direction. The insertion structure is used to be inserted into the bobbin to install the body of the unwinding device on the bobbin. The plug-in structure is located on the radial inner side of the circular outer circumference. The free end of the unwinding device body, wherein, in the direction from the connecting end to the free end, the maximum length between two points on the outer circumference of at least part of the cross-section of the insertion section of the insertion structure decreases gradually along the axial direction. The yarn unwinding device of the utility model is equipped with an insertion structure and the insertion structure is located on the radial inner side of the circular outer circumference, so the yarn is unwound through the outer circumference of the unwinding device body, so that the adhesion between the yarns is less , thereby reducing yarn breakage. In addition, the distance between the farthest two points on the outer circumference of the cross-section of the insertion section of the insertion structure of the yarn unwinding device of the utility model gradually decreases along the axial direction, so the yarn unwinding device of the utility model It can be applied to yarn bobbins of different diameters, improving the adaptability of the yarn unwinding device; in addition, it can also make the insertion section and the yarn bobbin in good contact, preventing the circular outer periphery from being caught in the yarn when the size of the insertion section is smaller than the inner diameter of the yarn bobbin. The movement occurs under the action of the thread, which is beneficial to reduce yarn wear.

Other features and advantages of the present invention will become clear through the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic structural view of a yarn unwinding device according to a specific embodiment of the present invention;

Fig. 2 is a top view structural schematic diagram of the yarn unwinding device shown in Fig. 1;

Fig. 3 is a schematic top view of the conical structure of the yarn unwinding device shown in Fig. 1;

Fig. 4 is a structural schematic view of installing the yarn unwinding device shown in Fig. 1 on the bobbin.

Each reference sign stands for:

1-Unwinding ring; 2-Conical structure; 3-Clip bar; 4-Connecting bar; 5-Yam bobbin.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification. In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

The yarn unwinding device of the embodiment of the utility model includes an unwinding device body with a circular outer circumference and an insertion structure arranged on one side of the unwinding device body in the axial direction and extending in the axial direction. The inserting structure is used for inserting into the yarn bobbin to install the unwinding device body on the yarn bobbin. The insertion structure is located on the radial inner side of the circular outer circumference. The insertion structure includes a connecting end connected to the body of the unwinding device and a free end away from the body of the unwinding device. Wherein, in the direction from the connection end to the free end, the distance between the two furthest points on the outer circumference of at least a part of the cross-section of the insertion section of the insertion structure decreases gradually along the axial direction. The yarn unwinding device of the embodiment of the utility model is provided with an insertion structure and the insertion structure is located on the radial inner side of the circular outer circumference, so the yarn is unwound through the outer circumference of the unwinding device body, so that the adhesion between the yarns less, thereby reducing yarn breakage. In addition, the maximum length between two points on the outer circumference of the cross-section of the insertion section of the insertion section of the yarn unwinding device of the embodiment of the utility model gradually decreases along the axial direction, so the yarn unwinding device of the embodiment of the utility model The winding device can be applied to yarn bobbins of different diameters, improving the adaptability of the yarn unwinding device. In addition, the inserting section can be in good contact with the bobbin, preventing the circular periphery from moving under the action of the yarn when the size of the inserting section is smaller than the inner diameter of the bobbin, which is beneficial to reducing yarn wear.

Preferably, at least part of the insertion section includes a rotating body whose axis extends from the connection end toward the free end. The generatrix of the rotating body is a straight line segment or a smooth curve segment gradually approaching the axis of the rotating body in the direction from the connecting end to the free end. At least part of the insertion section is set as a rotating body, so that the yarn unwinding device can be better assembled and disassembled.

The specific structure of the yarn unwinding device of this embodiment will be described in detail below with reference to FIGS. 1 to 4 .

As shown in FIGS. 1 to 4 , the insertion section of this embodiment is a conical structure 2 . The large-diameter end of the conical structure 2 is used as a connection end, and is connected to the unwinding ring 1 . The small-diameter end of the conical structure 2 is inserted into the bobbin 5 as a free end. The yarn unwinding device of this embodiment installs the unwinding ring 1 on the bottom end of the yarn bobbin 5 through the conical structure 2, and inserts the small-diameter end into the yarn bobbin 5, so that the unwinding ring 1 is easy to assemble and disassemble. Moreover, yarn bobbins of different sizes can be clamped on the conical structure 2, so the yarn unwinding device of this embodiment has a wider range of adaptability.

As shown in FIG. 1 and FIG. 2 , the unwinding device body of the yarn unwinding device of this embodiment includes an unwinding ring 1 . The circular outer circumference is set on the unwinding ring 1 . The insertion structure is connected to the unwinding ring 1 through the connection structure. In this embodiment, the main body of the unwinding device is set as an unwinding ring, so that the yarn unwinding device is lighter in weight and lower in cost.

In this embodiment, the connecting structure includes more than two connecting bars 4 arranged at intervals in the circumferential direction of the unwinding coil 1 . The first end of the connecting bar 4 is fixedly connected with the unwinding coil 1, and the second end of the connecting bar 4 is fixedly connected with the connecting end of the insertion structure.

In an embodiment not shown in the drawings, the body of the unwinding device may also be a disc.

In an embodiment not shown in the drawings, the insertion structure may be a triangular pyramid structure.

As shown in FIG. 4 , the conical structure 2 is arranged coaxially with the circular periphery of the unwinding coil 1 . Setting the conical structure 2 coaxially with the circular outer circumference of the unwinding ring 1 enables the unwinding radius of the yarn S to remain constant during the unwinding process, so that the unwinding tension on the yarn S can also be kept constant. Change, further reduce the broken yarn rate.

As shown in FIGS. 1 to 3 , at least two clamping strips 3 extending along the axial direction of the conical structure 2 are provided on the outer wall of the conical structure 2 . At least two clip strips 3 are distributed at intervals in the circumferential direction of the tapered structure 2 . Since the inner wall of the bobbin 5 is a cylindrical surface, the outer wall of the conical structure 2 is a conical surface. The setting of the clip bar 3 can prevent the conical structure 2 from slipping off the yarn tube 5 so as to be more firmly inserted into the yarn tube 5 .

Preferably, in the direction from the large-diameter end of the conical structure 2 toward the free end, the thickness of the clip strip 3 in the radial direction becomes gradually smaller. The thickness of the bar 3 in the radial direction becomes gradually smaller so that the yarn unwinding device of this embodiment can be applied to yarn bobbins of different diameters.

Specifically, in this embodiment, the end surface of the clip bar 3 is provided with a clip slot. The connecting strip 4 connects the conical structure 2 and the unwinding ring 1 by being inserted into the slot.

As shown in FIG. 3 , the diameter D1 of the large-diameter end of the conical structure 2 is 70 mm. The diameter D2 of the small-diameter end of the conical structure 2 is 65 mm. The height of the conical structure 2 is 30 mm.

The conical structure 2 is a plastic base. The unwinding ring 1 is a stainless steel ring.

Preferably, the radius of the circular outer circumference of the unwinding device body is 100-200mm. This range is greater than the radius of the bobbin, so the unwinding radius of the yarn becomes larger, reducing the adhesion and friction between the yarns, thereby effectively reducing the yarn breakage rate. More preferably, the radius of the circular outer circumference of the unwinding device body may be 150mm.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (9)

1. a kind of yarns take-off device, it is characterised in that moved back including the take-off device body with circular circumference and located at described The axial side of winding apparatus body and along the axially extending plug-in mounting structure, the plug-in mounting structure is used to be inserted in tube (5) It is interior that so that the take-off device body is installed on tube (5), the plug-in mounting structure is located at the radially inner side of the circular circumference, The plug-in mounting structure includes the connection end being connected with the take-off device body and the free end away from the take-off device body, Wherein, on from the connection end to the direction of the free end, at least part of the plug-in mounting structure inserts the cross section of section Periphery on the distance of farthest point-to-point transmission be gradually reduced along the axial direction.

2. yarns take-off device according to claim 1, it is characterised in that at least part inserting section include axis from The rotary body that the connection end extends towards the free end, the bus of the rotary body is from the connection end to the freedom The straightway or smooth curve section of the axis of the rotary body are moved closer on the direction at end.

3. yarns take-off device according to claim 2, it is characterised in that at least part inserting section includes cone Structure (2).

4. yarns take-off device according to claim 2, it is characterised in that the rotary body and the take-off device body Circular circumference be coaxially disposed.

5. yarns take-off device according to claim 2, it is characterised in that at least part inserting section also includes setting In at least two card articles (3) extended from the connection end to the free end on the outer wall of the rotary body, it is described at least Two card articles (3) insert the circumferentially-spaced distribution of section in described at least part.

6. yarns take-off device according to claim 5, it is characterised in that from the connection end towards the free end Direction on, the card article (3) tapers into the thickness in the radial direction of the rotary body.

7. yarns take-off device according to claim 1, it is characterised in that the take-off device body includes unwinding and enclosed (1), the circular circumference is arranged on the unwinding circle (1), and the plug-in mounting structure is connected to the unwinding by attachment structure Enclose on (1).

8. yarns take-off device according to claim 7, it is characterised in that the attachment structure is included in the unwinding circle (1) the two or more connection strap (4) of circumferentially-spaced setting, the first end of the connection strap (4) and the unwinding circle (1) are solid Fixed connection, the second end of the connection strap (4) is fixedly connected with the connection end of the plug-in mounting structure.

9. yarns take-off device according to claim 1, it is characterised in that the circular circumference of the take-off device body Radius is 100-200mm.