Steel collar

Abstract

The invention provides a steel collar which comprises a steel collar body and a nylon hook, the nylon hook is provided with an opening, an annular rail concentric with the steel collar is arranged on the steel collar body, and the nylon hook is matched with the annular rail through the opening and does loopback motion relative to the steel collar body along the annular rail in the working process. And a flange for supporting the opening end of the nylon hook protrudes outwards on the peripheral surface of the steel collar body corresponding to the lower part of the annular rail. The protruding bumps are designed on the circumferential outer edge of the steel collar body, certain supporting force is provided for the outer circumferential face of the nylon hook in the dynamic movement process of the nylon hook, centrifugal force generated in rotary movement can be effectively counteracted, and the pressure of the inner side end of an opening of the nylon hook and an inner running groove is relieved. And a floating gap is formed between the outer side end part of the opening of the nylon hook and the outer running groove. Through combination of the nylon hook and the steel collar body, excessive abrasion of the contact position of the steel collar and the nylon hook can be effectively avoided, the service life of the nylon hook and the steel collar body can be effectively prolonged, spun yarn twisting and coiling operation is smoother, and the yarn breaking risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a steel collar of a winding device of a spinning frame. Background Art

[0002] In the winding of the spinning machine, the steel collar is installed on the steel collar plate, and is driven by the steel collar plate to move up and down relative to the bobbin. A yarn guide plate is correspondingly arranged above the bobbin, and a yarn guide hook is arranged on the yarn guide plate, and the yarn guide hook, the steel collar and the bobbin spindle are kept in a certain position, so that the yarn can maintain an effective yarn path and maintain a stable tension when passing through the yarn guide hook and the steel collar.

[0003] On the premise that the yarn path and tension are maintained between the yarn guide hook, steel collar and bobbin spindle, the upper end surface of the steel collar has a loop track structure, on which a nylon hook is installed. The yarn passes through the nylon hook, and when the steel collar plate moves up and down, the steel collar moves up and down accordingly. The nylon hook moves along the loop track and rotates at high speed with the steel collar. By rotating at high speed on the steel collar, friction is generated with the yarn, thereby achieving twisting and winding of the yarn.

[0004] In the existing steel ring structure, usually Figure 1 As shown in the figure, the nylon hook is a C-shaped structure, the steel collar is an annular structure, the axial inner wall and the axial outer wall of the annular structure are conical surfaces, the inner and outer sides of the upper end surface of the annular structure are protruding with edges, and the inner and outer edges of the upper end surface of the annular structure form a loop track that matches the C-shaped opening position of the nylon hook. During operation, the yarn passes through the nylon hook, and the nylon hook moves along the loop track of the steel collar relative to the steel collar. During the yarn twisting and winding process, the pressure generated by the yarn relative to the nylon hook is transmitted by the nylon hook to the two ends of the C-shaped opening of the nylon hook, so that during the up and down movement of the steel collar and the nylon hook, the two ends of the C-shaped opening of the nylon hook are in contact with the steel collar and rotate, and friction occurs continuously, causing wear at the two ends of the nylon hook opening and the contact position between the steel collar and the nylon hook. In particular, between the inner end of the nylon hook opening and the steel collar, when the nylon hook rotates relative to the steel collar, it is more tightly pressed on the steel collar under the action of centrifugal force, and the degree of wear far exceeds the contact position between the outer end of the nylon hook opening and the steel collar. At the same time, the pressure generated by the yarn during the twisting and winding process is distributed on the nylon hook. When the nylon hook moves up and down with the steel collar and moves along the steel collar's loop track, if the steel collar and the nylon hook are excessively worn, it is easy to cause smooth movement, resulting in thread breakage and affecting production continuity. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, the present invention provides a steel collar, and the steel collar body is specially designed so that during the dynamic matching process between the steel collar body and the nylon hook, the steel collar body can effectively support the nylon hook, thereby avoiding excessive friction between the opening position of the nylon hook and the inner ring of the steel collar, which may cause wear on the contact part between the two, and reducing the risk of wire breakage during the twisting and winding of the spun yarn.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a steel collar is arranged on a steel collar plate below the yarn guide hook of a spinning machine, surrounds and moves up and down relative to the bobbin spindle, and includes a steel collar body and a nylon hook; the steel collar body is an annular structure; the nylon hook has an opening, and the steel collar body is provided with an annular track concentric with the steel collar, the nylon hook cooperates with the annular track through the opening and makes a loop motion relative to the steel collar body along the annular track during operation; the outer peripheral surface of the steel collar body is provided with a flange protruding outward corresponding to the lower side of the annular track to support the opening end of the nylon hook.

[0007] In the above scheme, in the cooperation between the steel collar and the nylon hook, in order to solve the problem that the contact position between the two is easy to wear, a flange is designed below the circular track of the steel collar body to provide partial support for the outer end of the nylon hook opening. When the nylon hook is dynamically running along the circular track of the steel collar with the yarn, when the outer end of the nylon hook opening falls, the flange provides effective support, and the outer end of the nylon hook opening is subjected to force, which can push the inner end of the nylon hook opening inward accordingly, so that the friction between the inner side of the nylon hook opening and the corresponding position of the steel collar body is reduced, thereby delaying the wear of the contact part between the steel collar and the nylon hook.

[0008] Preferably, the flange is in a bulge-like structure protruding relative to the outer peripheral surface of the steel collar body along the axial cross-section of the steel collar body, and the outer edge of the bulge-like structure is in a inferior arc shape. Through the inferior arc-shaped outer edge design, the flange supports the outer end of the nylon hook opening and the supporting range is the upper half of the inferior arc structure. The arc-shaped undulation of the structure makes the gap between the outer end of the nylon hook opening and the bulge-like structure have a range, forming a gap for the outer end of the nylon hook opening to be free during rotation.

[0009] Furthermore, the top of the steel collar body has convex edges in the direction of the inner and outer circumferences of the annular structure, wherein the edge located on the inner circumference of the annular structure is the inner edge, and the edge located on the outer circumference of the annular structure is the outer edge. The openings of the nylon hooks are respectively hooked on the outer edge and the inner edge, and the bulge-like structure is located on the outer circumference below the outer edge of the collar pump body. The annular track includes an inner running groove corresponding to the inner edge and an outer running groove corresponding to the outer edge.

[0010] Furthermore, an outer running groove is formed between the bulge-like structure and the outer edge for the outer end of the nylon hook opening to cooperate in rotation, and the distance between the bulge-like structure and the outer edge is greater than the thickness of the outer end of the nylon hook opening. When the outer end of the nylon hook opening rotates along the outer running groove, there is a gap between the outer end of the nylon hook opening and the outer edge of the bulge-like structure, or between the outer end of the nylon hook opening and the outer edge. The gaps on the upper and lower sides are the free gaps of the nylon hook in the rotational motion relative to the steel collar body.

[0011] Correspondingly, the inner circumference of the annular structure of the steel collar body is concave below the inner edge and has an inner running groove for the inner end of the nylon hook opening to fit in. Through the free gap of the outer running groove, the centrifugal force can be overcome during the rotation of the nylon hook relative to the steel collar, effectively reducing the pressure between the inner end of the nylon hook opening and the steel collar body, thereby reducing friction loss.

[0012] Furthermore, the outer circumference of the annular structure at the bottom of the steel collar body protrudes outward and has a bottom outer edge, and the steel collar body is connected to the steel collar plate through the bottom outer edge. The power mechanism of the spinning frame drives the steel collar plate to move, thereby driving the steel collar body to move up and down.

[0013] The beneficial effect of the present invention is that the steel collar provided by the present invention provides a certain support force for the nylon hook on the outer peripheral surface by designing a protruding bulge on the circumferential outer edge of the steel collar body during the process of the steel collar rising and falling with the steel collar plate and during the dynamic movement of the nylon hook, which can effectively offset the centrifugal force generated in the rotary motion and reduce the pressure between the inner end of the nylon hook opening and the inner running groove. At the same time, there is a floating gap between the outer end of the nylon hook opening and the outer running groove. The combination of the two can effectively avoid excessive wear at the contact position between the steel collar and the nylon hook, effectively extend the service life of the nylon hook and the steel collar body, make the spun yarn twisting and winding operation smoother, and reduce the risk of wire breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of an existing steel collar and a nylon hook.

[0016] Figure 2 Schematic diagram of the structure of the best embodiment of the present invention (the steel collar plate is not shown).

[0017] Figure 3 It is a schematic structural diagram of a gap formed between the outer end of the nylon hook opening and the outer edge in the optimal embodiment of the present invention.

[0018] Figure 4 It is a schematic structural diagram of a gap formed between the outer end of the nylon hook opening and the flange in the optimal embodiment of the present invention.

[0019] In the figure, 1, yarn guide hook 2, bobbin spindle 3, yarn 4, nylon hook 5-1, steel collar body 5-2, inner running groove 5-3, outer running groove 5-4, flange 5-5, bottom outer edge. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0021] like Figure 2 The steel collar shown is the best embodiment of the present invention. The steel collar is arranged on the steel collar plate below the yarn guide hook 1 of the spinning frame, and the steel collar plate is not shown in the figure. The steel collar surrounds and is arranged concentrically with the bobbin spindle 2. The outer peripheral surface of the bottom of the steel collar body 5-1 corresponding to the annular structure protrudes outward and has a bottom outer edge 5-5. The steel collar body 5-1 is connected to the steel collar plate through the bottom outer edge 5-5. The steel collar plate is driven by the power mechanism of the spinning frame, such as a power mechanism such as an oil cylinder or an air cylinder, so that it moves up and down relative to the bobbin spindle 2. During operation, the steel collar carries the nylon hook 4 and moves up and down relative to the bobbin spindle 2. The yarn 3 passes through the nylon hook 4. The nylon hook makes a high-speed loop motion on the steel collar during the up and down movement of the steel collar.

[0022] like Figure 3 and Figure 4 As shown, the steel collar provided in this embodiment includes a steel collar body 5-1 and a nylon hook 4. The steel collar body 5-1 is an annular structure. The top of the steel collar body 5-1 is convex and has edges in the direction of the inner circumference and outer circumference of the annular structure, wherein the edge located on the inner circumference of the annular structure is the inner edge, and the edge located on the outer circumference of the annular structure is the outer edge.

[0023] The nylon hook 4 is a C-shaped structure with an opening. According to the position direction of the nylon hook 4 and the steel collar body 5-1, the two ends of the opening of the nylon hook 4 are the inner end of the opening and the outer end of the opening. The steel collar body 5-1 is provided with an annular track concentric with the steel collar. The nylon hook 4 cooperates with the annular track through the opening and makes a loop motion relative to the steel collar body 5-1 along the annular track during operation. In this embodiment, the main purpose is to overcome the centrifugal force and reduce the wear at the contact position between the inner end of the opening of the nylon hook 4 and the steel collar body 5-1.

[0024] In the cooperation between the steel collar and the nylon hook 4, in order to solve the problem that the contact position between the two is easy to wear, the outer peripheral surface of the steel collar body 5-1 is provided with a flange 5-4 protruding outwardly below the corresponding annular track to support the open end of the nylon hook 4. The flange 5-4 is a bulge-like structure protruding relative to the outer peripheral surface of the steel collar body 5-1 along the axial section of the steel collar body 5-1, and the outer edge of the bulge-like structure is in a bad arc shape. Through the design of the bad arc-shaped outer edge, the flange 5-4 supports and holds up the outer end of the opening of the nylon hook 4. The supporting range of the upper half of the bad arc-shaped structure, the arc undulation of the structure makes the gap between the outer end of the opening of the nylon hook 4 and the bulge-like structure have a range, and a gap is formed during the rotation for the outer end of the opening of the nylon hook 4 to be free.

[0025] The opening of the nylon hook 4 is hooked on the outer edge and the inner edge respectively, and the bulge-like structure is located on the outer circumferential surface below the outer edge of the steel collar body 5-1. The annular track includes an inner running groove 5-2 corresponding to the inner edge and an outer running groove 5-3 corresponding to the outer edge. Among them, the inner running groove 5-2 is formed by the inner circumferential surface of the annular structure of the steel collar body 5-1 corresponding to the inner edge below the concave, and in the rotation of the nylon hook 4, the inner running groove 5-2 is provided for the inner end of the opening of the nylon hook 4 to cooperate with relative movement. The outer running groove 5-3 is formed between the bulge-like structure and the outer edge, and the outer end of the opening of the nylon hook 4 rotates along the outer running groove 5-3. In the shape design of the outer running groove 5-3, the distance between the bulge-like structure and the outer edge is greater than the thickness of the outer end of the opening of the nylon hook 4.

[0026] Thus, when the outer end of the opening of the nylon hook 4 moves along the outer running groove 5-3, a gap is formed between the outer end of the opening of the nylon hook 4 and the outer edge of the bulge-shaped structure, or between the outer end of the opening of the nylon hook 4 and the outer edge, and the gaps on the upper and lower sides are the free gaps in the rotation of the nylon hook 4 relative to the steel collar body 5-1. Through the free gap of the outer running groove 5-3, the centrifugal force is overcome in the rotation of the nylon hook 4 relative to the steel collar, thereby effectively reducing the pressure between the inner end of the opening of the nylon hook 4 and the steel collar body 5-1, thereby reducing friction loss.

[0027] When the steel collar body 5-1 moves up and down relative to the bobbin spindle 2, the yarn 3 passes through the nylon hook 4, and the nylon hook 4 rotates along the circular track of the steel collar body 5-1. During the rotation process, the nylon hook 4 generates an outward centrifugal force. Under the action of this centrifugal force, the inner end of the opening of the nylon hook 4 will be directly pressed against the inner running groove 5-2. At this time, if no special design is made, long-term operation will cause the inner end of the opening of the nylon hook 4 to wear at the contact position with the surface of the inner running groove 5-2, thereby causing the nylon hook 4 to be stuck, the yarn 3 to break, and the twisting and winding to be blocked. In this embodiment, a flange 5-4 is designed below the outer running groove 5-3. When the nylon hook 4 is moved outward by the centrifugal force, the flange 5-4 plays a supporting role, providing a supporting force for the outer end of the opening of the nylon hook 4 at an angle downward. The supporting force offsets the centrifugal force, thereby reducing the pressure of the inner end of the nylon hook opening on the inner running groove 5-2. When the pressure is reduced, the friction between the two is reduced, thereby achieving the effect of reducing the wear of the inner end of the opening of the nylon hook 4 and the inner running groove 5-2 of the steel collar body 5-1.

[0028] At the same time, between the outer running groove 5-3 of the steel collar body 5-1, the flange 5-4 and the outer end of the nylon hook opening, the nylon hook 4 is in dynamic motion relative to the steel collar body 5-1 during the rotation of the nylon hook 4 relative to the steel collar body 5-1. Since the distance between the bulge-shaped structure and the outer edge is greater than the thickness of the outer end of the nylon hook 4 opening, there must be a gap between one side of the bulge-shaped structure or the outer edge and the outer end of the nylon hook 4 opening, and the outer end of the nylon hook 4 opening relative to the outer running groove 5-3 can also float up and down in the height direction. The wear caused by this floating action in the rotation is also lower than the wear caused by the traditional stable contact, thereby achieving the effect of reducing the wear of the outer end of the nylon hook 4 opening and the outer running groove 5-3 of the steel collar body 5-1.

[0029] In this way, by designing a protruding bulge on the circumferential outer edge of the steel collar body 5-1, a certain supporting force is provided for the nylon hook 4 on the outer peripheral surface during the process of the steel collar rising and falling with the steel collar plate and during the dynamic movement of the nylon hook 4, thereby avoiding excessive wear at the contact position between the steel collar and the nylon hook 4 at the inner circle position of the steel collar. By setting a floating gap, the service life of the nylon hook 4 and the steel collar body can be effectively extended, making the spun yarn twisting and winding operation smoother and reducing the risk of wire breakage.

[0030] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A steel collar, arranged on a collar plate below a yarn guide hook (1) of a spinning frame, surrounding and moving up and down relative to a bobbin spindle (2), characterized in that: It comprises a steel collar body (5-1) and a nylon hook (4); The steel collar body (5-1) is an annular structure; The nylon hook (4) has an opening, and the steel collar body (5-1) is provided with a circular track concentric with the steel collar. The nylon hook (4) cooperates with the circular track through the opening and performs a circular motion relative to the steel collar body (5-1) along the circular track during operation. The outer peripheral surface of the steel collar body (5-1) is provided with a flange (5-4) protruding outwardly below the corresponding annular track and supporting the opening end of the nylon hook (4).

2. A steel ring according to claim 1, characterized in that: The flange (5-4) is in the form of a bulge-like structure protruding relative to the outer peripheral surface of the steel collar body (5-1) along the axial section of the steel collar body (5-1), and the outer edge of the bulge-like structure is in the form of a minor arc.

3. A steel ring according to claim 2, characterized in that: The top of the steel collar body (5-1) is convex with edges in the direction of the inner and outer circumferences of the annular structure, wherein the edge located on the inner circumference of the annular structure is the inner edge, and the edge located on the outer circumference of the annular structure is the outer edge. The openings of the nylon hooks (4) are respectively hooked on the outer edge and the inner edge. The bulge-like structure is located on the outer circumference below the outer edge of the collar pump body. The annular track includes an inner running groove (5-2) corresponding to the inner edge and an outer running groove (5-3) corresponding to the outer edge.

4. A steel ring according to claim 3, characterized in that: An outer running groove (5-3) is formed between the bulge-like structure and the outer edge for the outer end of the nylon hook (4) to rotate in cooperation. The distance between the bulge-like structure and the outer edge is greater than the thickness of the outer end of the nylon hook (4). When the outer end of the nylon hook (4) rotates along the outer running groove (5-3), there is a gap between the outer end of the nylon hook (4) and the outer edge of the bulge-like structure, or between the outer end of the nylon hook (4) and the outer edge.

5. A steel ring according to claim 4, characterized in that: The inner circumference of the annular structure of the steel collar body (5-1) is concave below the inner edge and has an inner running groove (5-2) for the inner end of the opening of the nylon hook (4) to cooperate with.

6. A steel ring according to claim 1, characterized in that: The outer circumference of the annular structure at the bottom of the steel collar body (5-1) protrudes outward and has a bottom outer edge (5-5). The steel collar body (5-1) is connected to the steel collar plate through the bottom outer edge (5-5). The steel collar plate is driven by the power mechanism of the spinning frame to move up and down.

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