Bobbin for roving frame

Abstract

The present invention provides a bobbin for a roving frame, comprising a cylindrical body portion having a hollow interior and at least one fixing member detachably disposed on the outer surface of the body portion and provided with a plurality of fixing protrusions, whereby when yarn is initially wound onto the body portion, the yarn is securely fixed in the state of being caught on the fixing protrusions. Further, when removal of residual yarn remaining on the fixing protrusions is required after the yarn has been unwound from the body portion, the residual yarn can be easily removed by pushing same in the direction opposite to the inclined direction of the fixing protrusions to disengage therefrom.

Description

Bobbin for the work machine

[0001] The present invention relates to a bobbin for a spinning machine, which is installed in a spinning machine and on which a twisted yarn is wound.

[0002] Generally, a spinning machine is used to stretch cotton-like fibers into long strands, twist them, and make them into coarse yarn.

[0003] In this way, the coarse yarn produced in the spinning machine is wound onto a bobbin.

[0004] In the use of spinning machine bobbins, continuous operation is possible only when the end of the yarn is reached and the yarn is connected to the next bobbin; therefore, in most cases, a small amount of yarn is left just before it is completely unwound.

[0005] Since the yarn residue left in this way remains wound on the bobbin, the residue must be removed before the bobbin can be recycled.

[0006] However, conventional bobbins are provided with Velcro or tape coated with adhesive to secure the yarn so that it does not slip on the surface of the bobbin when the yarn is first wound.

[0007] As a result, yarn residue remaining on the bobbin stays attached to the tape, making its removal cumbersome. Furthermore, the unremoved residue weakens the tape's fixing strength, leading to the problem of having to reattach a new tape after removal.

[0008] Related technology regarding such a bobbin is disclosed in Korean Utility Model Registration No. 20-0483884 (June 29, 2017).

[0009] The purpose of the present invention is to provide a bobbin for a spinning machine that stably secures the initial winding yarn and allows for easy removal of residue.

[0010] The present invention provides a bobbin for a spinning machine comprising a hollow cylindrical body portion and at least one fixing member detachably disposed on the outer surface of the body portion and provided with a plurality of fixing protrusions.

[0011] In addition, an insertion groove is provided on the outer surface of the body part, and the fixing member can be inserted into the insertion groove.

[0012] In addition, the depth of the insertion groove can be provided to be equal to the total height of the fixing member.

[0013] In addition, a plurality of detachable grooves are provided on the outer surface of the body part at spaced intervals, and the fixing member may be provided with a detachable projection that is detachably fastened to the fixing groove.

[0014] In addition, the above-mentioned fixing projection may be arranged at an angle in the tangential direction of the body part with respect to the outer surface of the body part.

[0015] In addition, a plurality of the above-mentioned fixed protrusions may be arranged spaced apart from each other in the circumferential direction and the longitudinal direction of the body part.

[0016] In addition, at least one release groove may be provided on the upper edge of the fixing member.

[0017] In addition, a protrusion having an inclined surface is provided on one side in the longitudinal direction of the body portion, and a plurality of locking projections are provided on the protrusion at spaced apart from each other in the circumferential direction, and at least one locking groove may be provided on the inclined surface.

[0018] The bobbin for a spinning machine according to the present invention has at least one fixing member having a plurality of fixing protrusions provided on the outer surface of a cylindrical body portion, so that when the yarn is first wound onto the body portion, the yarn is stably fixed by being caught on the fixing protrusions. In addition, if it is necessary to remove the residue remaining on the fixing protrusions after the yarn is unwound from the body portion, the residue can be easily removed by pushing it out in the opposite direction to the inclined direction of the fixing protrusions.

[0019] FIG. 1 is a perspective view of a bobbin for a spinning machine according to one embodiment of the present invention.

[0020] FIG. 2 is a partial perspective view of the disassembled state of a bobbin for a spinning machine according to one embodiment of the present invention.

[0021] Figure 3 is a cross-sectional view along line III-III shown in Figure 1.

[0022] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims are limited to their ordinary or dictionary meanings. Figure 1 is a perspective view of a bobbin for a spinning machine according to one embodiment of the present invention.

[0023] FIG. 2 is a partial perspective view of the disassembled state of a bobbin for a spinning machine according to one embodiment of the present invention.

[0024] FIG. 3 is a cross-sectional view along the line III-III indicated in FIG. 1. It should not be interpreted in the sense and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the term to explain his invention in the best way possible.

[0025] Referring to FIGS. 1 to 3, a bobbin for a spinning machine according to one embodiment of the present invention may include a body part (100) and a fixing member (200).

[0026] The above body part (100) is a part where the thread is wound while being rotated by the spindle of a spinning machine (not shown).

[0027] The above body part (100) may be formed into a cylindrical structure having a hollow space for inserting a spindle.

[0028] For example, the body part (100) is provided in a circular shape with the same diameter from the lower side to the upper side, but is not limited thereto and may be provided in a cylindrical shape with the diameter gradually narrowing from the lower side to the upper side.

[0029] The above-mentioned body part (100) can be manufactured through plastic injection molding.

[0030] In addition, at least one insertion groove (110) may be provided on the outer surface of the body part (100) so that a fixing member (200), which will be described later, can be inserted and positioned.

[0031] For example, if the above insertion grooves (110) are provided in multiple numbers, the multiple insertion grooves (110) may be spaced apart in the circumferential direction on the outer surface of the body part (100).

[0032] In this way, when the fixing member (200) is placed on the outer surface of the body part (100), the insertion groove (110) prevents the end of the fixing member (200) from protruding beyond the outer surface of the body part (100), thereby minimizing protrusion at the part where the fixing member (200) is placed when the yarn is wound.

[0033] In addition, at least one detachable groove (111) for detachably attaching a fixing member (200) may be provided on the outer surface of the body part (100) where the insertion groove (110) is located.

[0034] As another example, a magnetic member (not shown) that allows the fixing member (200) to be detachably attached by magnetic force may be provided on the outer surface of the body part (100) where the insertion groove (110) is located.

[0035] Here, the depth 'T' of the insertion groove (110) may be formed deeper than or equal to the total height 'H' of the fixing member (200) so that it does not protrude beyond the outer surface of the body part (100) when the fixing member (200) is placed.

[0036] In this way, the fixing member (200) placed in the insertion groove (110) does not protrude beyond the outer surface of the body part (100), so that when the yarn is wound onto the body part (100), it is not obstructed and is wound evenly along the longitudinal direction of the body part (100).

[0037] Additionally, a protrusion (120) having an inclined surface (121) may be provided at one end of the outer surface in the longitudinal direction of the body part (100), that is, on the lower outer surface of the body part (100).

[0038] Here, the protrusion (120) may be provided with a plurality of locking projections (122) spaced apart from each other in the circumferential direction.

[0039] The above protrusion (120) and the catch projection (122) serve to catch the yarn so that it does not deviate from the body part (100) at one end in the longitudinal direction of the body part (100) when the yarn is wound on the body part (100).

[0040] Additionally, the inclined surface (121) of the protrusion (120) may be provided with at least one catch groove (123) for catching the end portion of the yarn wound on the body portion (100).

[0041] When the above-mentioned catch grooves (123) are configured in multiple numbers, the multiple catch grooves (123) may be spaced apart from each other in the circumferential direction of the protrusion (120).

[0042] At least one of the above fixing members (200) may be placed on the outer surface of the body part (100).

[0043] Here, the fixing member (200) can be inserted and placed in an insertion groove (110) provided on the outer surface of the body part (100).

[0044] When the above fixing member (200) is configured in multiple units, the multiple fixing members (200) may be arranged on the outer surface of the body part (100) so as to be spaced apart from each other in the circumferential direction.

[0045] When a plurality of the above fixing members (200) are arranged in a circumferential direction on the outer surface of the body part (100), the fixing of the yarn wound on the body part (100) can be achieved more stably.

[0046] The above-mentioned fixing member (200) can be inserted and placed in an insertion groove (110) provided on the outer surface of the body part (100).

[0047] To this end, the fixing member (200) may be provided with a shape and size corresponding to the insertion groove (110).

[0048] The above fixing member (200) may be provided in a curved shape so as to be in close contact with the outer surface of the body part (100) when placed on the outer surface of the body part (100). For example, the fixing member (200) may be provided in a curved shape having the same curvature as the curvature of the body part (100).

[0049] If the above fixing member (200) has a curved shape, when the yarn is wound on the fixing member (200), the frictional force between the upper surface of the fixing member (200) and the yarn can be prevented from being concentrated at a local point such as the edge of the fixing member (200).

[0050] The above fixing member (200) can be detachably disposed on the body part (100).

[0051] If the above fixing member (200) is detachably positioned on the body part (100), the fixing member (200) can be easily replaced if it is damaged or needs to be replaced.

[0052] In addition, at least one detachable projection (201) may be provided on the bottom surface of the above-mentioned fixing member (200).

[0053] The detachable projection (201) is detachably fastened to the fixing member (200) in the detachable groove (111) provided in the body part (100). At this time, the detachable projection (201) can be fastened to the detachable groove (111) in a press-fit structure.

[0054] In addition, at least one escape groove (202) may be provided on the upper edge of the fixing member (200).

[0055] The above-mentioned detachment groove (202) allows a detachment tool, such as a pin, to easily catch on the fixing member (200) when the fixing member (200) is detachably placed on the outer surface of the body part (100) and the fixing member (200) is to be detached from the body part (100), thereby enabling the user to easily perform the operation of detaching the fixing member (200) from the body part (100) using the detachment tool.

[0056] On the upper surface of the above fixing member (200), a fixing projection (210) may be provided to catch and fix the yarn when the yarn is first wound around the body part (100).

[0057] In addition, the above-mentioned fixing projection (210) may be provided in multiple numbers to enable stable gripping of the yarn.

[0058] For example, a plurality of the above-mentioned fixed protrusions (210) may be arranged spaced apart from each other in the circumferential and longitudinal directions of the body part (100).

[0059] Additionally, the fixed projection (210) may be positioned at an angle to have a predetermined angle of inclination on the upper surface of the fixed base (200).

[0060] For example, the fixing projection (210) may be provided on the upper surface of the fixing member (200) so as to be positioned at an angle in the tangential direction of the body part (100) with respect to the outer surface of the body part (100).

[0061] Additionally, the fixing projection (210) may be positioned so as to face in the opposite direction to the winding direction of the yarn when it is positioned at an angle of inclination in the tangential direction of the body part (100) on the upper surface of the fixing member (200) to have a predetermined angle of inclination. In this way, when the fixing projection (210) is positioned at an angle to face in the opposite direction to the winding direction of the yarn, it prevents the fixing state of the yarn from being released when the yarn is wound onto the body part (100) while being caught at the fixing projection (210).

[0062] The upper part of the above-mentioned fixing projection (210) is made to have a pointed shape with a cross-section that narrows as it goes upward, so that stable fixation is possible by inserting it into the yarn.

[0063] In this way, the bobbin for a spinning machine of one embodiment has at least one fixing member (200) having a plurality of fixing protrusions (210) provided on the outer surface of a cylindrical body part (100), so that when the yarn is first wound onto the body part (100), the yarn is stably fixed in a state where it is caught on the fixing protrusions (210). In addition, if it is necessary to remove the residue remaining on the fixing protrusions (210) after the yarn is unwound from the body part (100), the residue can be easily removed by pushing it out in the opposite direction of the inclination of the fixing protrusions (210).

[0064] The present invention has been described with reference to embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. A cylindrical body portion having a hollow space; A bobbin for a spinning machine comprising: at least one fixing member detachably disposed on the outer surface of the body portion and provided with a plurality of fixing protrusions.

2. In Claim 1, An insertion groove is provided on the outer surface of the above body part, and The above fixing member is a bobbin for a working machine that is inserted into an insertion groove.

3. In Claim 2, A bobbin for a working machine, wherein the depth of the insertion groove is provided to be equal to the total height of the fixing member.

4. In Claim 1, A plurality of detachable grooves are provided on the outer surface of the above body part at spaced apart from each other, and A bobbin for a spinning machine, wherein the above-mentioned fixing member is provided with a detachable projection that is detachably fastened to a fixing groove.

5. In Claim 1, The above fixed projection is a bobbin for a spinning machine that is arranged at an angle in the tangential direction of the body part with respect to the outer surface of the body part.

6. In Claim 1, A bobbin for a spinning machine in which a plurality of the above-mentioned fixed protrusions are arranged spaced apart from each other in the circumferential direction and the longitudinal direction of the body part.

7. In Claim 1, A bobbin for a spinning machine having at least one release groove provided on the upper edge of the fixed member.

8. In Claim 1, A protrusion having an inclined surface is provided on one side in the longitudinal direction of the above body part, and The above protrusion is provided with a plurality of locking projections spaced apart from each other in the circumferential direction, and A bobbin for a spinning machine, wherein at least one locking groove is provided on the inclined surface.

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