H-type bobbin and winding spindle fixing device and use method thereof

Abstract

The present invention relates to an H-type bobbin and a winding spindle fixing device and a method for using the same. The two ends of the H-type bobbin tube body are arranged as an upper edge of the bobbin and a lower edge of the bobbin. The H-type bobbin is provided with a bobbin cavity, including a tray at the bottom end of a spindle rod and a spindle cap assembly arranged at the top end of the spindle rod, and an inner concave annular groove is arranged on the outer surface of the upper part of the spindle rod; the inner part of the inner ferrule is hollow and the inner side wall can fit with the outer side wall of the spindle rod, the outer side of the inner ferrule is provided with a first limiting groove and a second limiting groove, the lower side of the outer side wall of the inner ferrule is arranged as an outer stroke surface, and the aperture of the steel ball hole on the inner side surface of the inner ferrule is smaller than the diameter of the steel ball; the inner side wall of the outer ferrule is provided with an inner stroke surface, a fixing groove is arranged on the upper part of the inner stroke surface, a limiting ring is arranged in the fixing groove, the limiting ring is an elastic ring and the inner end protrudes from the inner stroke surface, and the depth of the accommodating groove is smaller than the diameter of the steel ball; it also includes an upper spring sleeved on the lower end of the outer wall of the inner ferrule, the outer wall of the inner ferrule is horizontally provided with an annular first retaining ring, and an upper centering sleeve is arranged below the upper spring.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, and in particular to an H-type bobbin and winding spindle fixing device and a use method thereof. Background Art

[0002] In the field of winding machines, the yarn tubes used for winding yarn, cotton thread and other filamentary materials are mostly H-type yarn tubes. The middle part of the H-type yarn tube is a tube body, and the upper and lower ends are respectively set to have a diameter larger than the upper edge and lower edge of the tube body. The tube body is used to wind the yarn, and the upper edge and the lower edge are used to limit the yarn roll after winding from falling off or scattering from the tube body. The H-type yarn tube and the spindle need to be fixed to make the winding machine work normally. The motor drives the spindle to rotate, so that the H-type yarn tube rotates to realize the winding on the tube body of the H-type yarn tube. Figure 1 and Figure 2 The figure shows a method for fixing an H-type bobbin and a spindle in the prior art. The spindle rod 3 of the spindle adopts a tapered design that is narrow at the top and wide at the bottom. In order to make the H-type bobbin 1 fit and fix with the spindle rod 3, the parts near the upper edge 11 and the lower edge 13 of the bobbin cavity 14 at the upper and lower ends of the bobbin cavity 14 ( Figure 1 The M and N positions in the middle also adopt a tapered design that is narrow at the top and wide at the bottom. Figure 1 The extended line X of the straight line where the M and N sections at the upper and lower ends of the yarn tube cavity 14 are located is shown. Figure 2 The extension line Y of the straight line where the cross section of the spindle rod 3 is located is shown. Both X and Y are narrow at the top and wide at the bottom. A tool is used to press the H-type yarn tube 1 downward on the spindle rod 3 so that the yarn tube cavity 14 and the spindle rod 3 are combined and squeezed to form a fixed connection. The motor is started to drive the spindle rod 3 to rotate for yarn winding. When the H-type yarn tube is full of yarn and needs to be removed, the H-type yarn tube is pried upward with the help of a tool to detach it from the spindle rod.

[0003] This method of fixing and disassembling with the help of tools is not only inconvenient to use, but also because it is only fixed by the friction between the yarn tube cavity 14 and the spindle rod 3, there is no clear fixing position, so the installation position of the H-type bobbin 1 is not accurate enough, and multiple H-type bobbin 1 cannot be accurately and uniformly installed on the same horizontal plane, which may cause the yarn delivered by the winding machine to exceed the upper edge 11 or lower edge 13 of some H-type bobbin 1 when winding around different bobbin bodies 12, so that some H-type bobbin 1 cannot be used normally; at the same time, when the yarn tube cavity 14 is worn, the H-type bobbin 1 will move downward to obtain sufficient friction with the spindle rod 3 to form a squeeze fixation due to the fixation by friction, which will also cause the yarn delivered by the winding machine to exceed the upper edge 11 of the bobbin when winding around the bobbin body 12. Both of these situations will make it impossible for the yarn to be accurately wound around the bobbin body 12, reducing production efficiency. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide an H-type bobbin and winding spindle fixing device which has accurate installation position and is easy to use.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An H-type bobbin and a winding spindle fixing device, wherein the H-type bobbin is mainly a cylindrical bobbin body, the upper and lower ends of the bobbin body are respectively arranged as a bobbin upper edge and a bobbin lower edge with diameters larger than the bobbin body, the bobbin body is used to wind the yarn transmitted by the winding machine, a cylindrical through bobbin cavity is arranged at the center of the H-type bobbin, comprising a cylindrical spindle rod for sleeved in the bobbin cavity, a tray arranged at the bottom end of the spindle rod for supporting the bobbin lower edge and a spindle cap assembly arranged at the top end of the spindle rod for fastening the bobbin upper edge, and an inwardly concave annular groove is arranged on the outer surface of the upper part of the spindle rod; The ingot cap assembly includes an inner ferrule and an outer ferrule which are arranged inside and outside. The inner ferrule is hollow inside and its inner wall can fit with the outer wall of the ingot rod. The outer wall of the inner ferrule is longitudinally spaced with a first limiting groove and a second limiting groove which are parallel to each other. The first limiting groove and the second limiting groove are annular grooves and are arranged horizontally. The lower side of the outer wall of the inner ferrule is arranged as an outer stroke surface. A plurality of steel ball holes are circumferentially spaced at the upper end of the outer stroke surface. The plurality of steel ball holes are on the same horizontal plane. Steel balls can be accommodated in the steel ball holes. The diameter of the steel ball holes on the inner side of the inner ferrule is smaller than the diameter of the steel balls. The inner wall of the outer ferrule is provided with an inner The stroke surface, the inner stroke surface and the outer stroke surface fit each other, a fixed groove is arranged on the upper part of the inner stroke surface, a limit ring is arranged in the fixed groove, the limit ring is an elastic ring and the inner end protrudes from the inner stroke surface, the limit ring can form relative movement and limit with the first limit groove and the second limit groove through interference fit, and a receiving groove for accommodating a steel ball is arranged at the lower part of the inner stroke surface, and the depth of the receiving groove is less than the diameter of the steel ball; it also includes an upper spring sleeved on the lower end of the outer wall of the inner ferrule, an annular first retaining ring is arranged horizontally on the outer wall of the inner ferrule, the upper end of the upper spring is against the first retaining ring, and a There is an upper centering sleeve, the lower end of which can abut against the upper edge of the bobbin; when the limiting ring is in the first limiting groove, the steel ball is limited in the space formed by the steel ball hole and the accommodating groove, the inner clamping sleeve is fitted on the spindle rod and can move up and down, the spindle cap assembly is unlocked, and the H-type bobbin can be removed from the spindle rod; when the outer clamping sleeve is moved downward to the second limiting groove of the limiting ring, the inner stroke surface squeezes the steel ball inward, and the steel ball moves inward in the steel ball hole. Part of the surface of the steel ball protrudes from the inner wall of the inner clamping sleeve and simultaneously enters the annular groove for engagement, the spindle cap assembly is locked, the upper centering sleeve abuts against the upper edge of the bobbin, and the H-type bobbin is fixed on the spindle rod.

[0007] Furthermore, the upper centering sleeve is configured as a cone with an inverted isosceles trapezoidal vertical section, the upper end diameter of the upper centering sleeve is larger than the diameter of the yarn tube cavity, and the lower end of the upper centering sleeve is fitted on the spindle rod and extends into the yarn tube cavity.

[0008] Furthermore, an anti-skid pad is arranged on the upper surface of the tray, and the anti-skid pad is made of elastic material.

[0009] Furthermore, it also includes a lower centering sleeve, which is arranged as a conical body with an isosceles trapezoidal vertical section. The diameter of the lower end of the lower centering sleeve is larger than the diameter of the yarn tube cavity. The upper end of the lower centering sleeve is fitted on the spindle rod and extends into the yarn tube cavity. A lower spring is arranged below the lower centering sleeve, and a boss is arranged at the lower part of the spindle rod. The lower end of the lower spring abuts against the top surface of the boss to provide support force for the lower centering sleeve. The tray is installed on the boss, and a accommodating cavity is arranged in the middle of the tray for accommodating the lower centering sleeve. The elastic force of the lower spring is smaller than the elastic force of the upper spring.

[0010] Furthermore, the top of the inner ferrule is arranged as a first pressing surface for convenient hand pressing, and the outer side surface of the outer ferrule is arranged as a second pressing surface for convenient hand pressing.

[0011] Furthermore, the diameter of the steel ball hole on the outer side of the inner ferrule is not less than the diameter of the steel ball.

[0012] Furthermore, the limiting ring and the anti-slip pad are made of rubber.

[0013] Furthermore, the outer ferrule is partially integrally formed except for the limiting ring, the inner ferrule is partially integrally formed except for the steel ball hole and the first retaining ring, and the ingot rod is integrally formed.

[0014] Furthermore, the steel ball holes and the steel balls are arranged in pairs into four groups with equal spacing.

[0015] A method for using an H-type bobbin and a winding spindle fixing device comprises the following steps:

[0016] A. Set the tube cavity of the H-type bobbin on the spindle rod, the tray supports the lower edge of the bobbin, and the lower centering sleeve extends into the lower end of the tube cavity to form a certain upward thrust on the H-type bobbin;

[0017] B. In the default state, the limiting ring is in the first limiting groove, the steel ball is limited in the space formed by the steel ball hole and the receiving groove, the ingot cap assembly is unlocked, and the ingot cap assembly can move on the ingot rod;

[0018] C. Press the second pressing surface by hand, place the spindle cap assembly and the upper spring and upper centering sleeve connected thereto on the spindle rod and move downward. The upper spring pushes the upper centering sleeve to act on the upper end of the yarn tube cavity so that the lower edge of the yarn tube fits with the surface of the tray. The upper spring is subjected to an upward reaction force to cause the inner ferrule and the outer ferrule to move relative to each other. Continue to press the second pressing surface to move the limiting ring from the first limiting groove to the second limiting groove. Part of the surface of the steel ball protrudes from the inner wall of the outer ferrule and enters the annular groove for locking and fixing. The spindle cap assembly is locked, and the H-type yarn tube is fixed on the spindle rod and cannot be moved. At this time, the winding machine can be started to drive the spindle rod to rotate, so that the yarn transported by the winding machine is wound around the tube body of the yarn tube;

[0019] D. When the tube body is full of yarn or the H-type tube needs to be replaced under other circumstances, stop the rotation of the spindle rod, press the first pressing surface downward by hand, and at the same time squeeze the second pressing surface to move the outer ferrule upward, so that the inner ferrule and the outer ferrule produce relative movement, the limiting ring moves from the second limiting groove to the first limiting groove, the steel ball enters the space composed of the steel ball hole and the accommodating groove from the annular groove, the engagement between the inner ferrule and the spindle rod is released, the spindle cap assembly is unlocked and can be removed from the spindle rod, thereby removing the H-type tube from the spindle rod.

[0020] In summary, compared with the prior art, the beneficial effects of the present invention are as follows: the spindle rod supports the lower edge of the bobbin at the lower end through the tray, and drives the upper centering sleeve to push the upper edge of the bobbin downward through the upper spring at the upper end, so that the H-type bobbin can be installed accurately; the H-type bobbin can be fixed or not through the locking or unlocking cooperation between the spindle cap assembly and the annular groove on the spindle rod, without the need for other tools. It is easy to use and simple to operate, while ensuring the stable operation of the H-type bobbin and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional schematic diagram of an H-type bobbin of background technology;

[0022] Figure 2 A schematic cross-sectional view of an H-type bobbin and spindle assembly according to the background technology;

[0023] Figure 3 It is a schematic diagram of the overall structure of the embodiment;

[0024] Figure 4 Schematic cross-sectional view of an H-type bobbin in an embodiment;

[0025] Figure 5 It is a structural schematic diagram of the spindle rod of the embodiment;

[0026] Figure 6 This is a schematic structural diagram of the ingot cap assembly assembly of the embodiment;

[0027] Figure 7 This is a schematic diagram of the structure of the ingot cap assembly in the embodiment in a disassembled state;

[0028] Figure 8 It is a schematic cross-sectional structure diagram of the ingot cap assembly in the embodiment in the exploded state;

[0029] Fig. 9 This is a schematic diagram of the exploded state of the inner ferrule, upper centering sleeve and other components;

[0030] Fig.10 This is one of the structural schematic diagrams of the disassembled state of the tray, lower centering sleeve and other components;

[0031] Fig.11 This is the second schematic diagram of the structure of the disassembled state of the tray, lower centering sleeve and other components;

[0032] Fig.12 It is a schematic diagram of a first embodiment of the structure of a winding spindle fixing device;

[0033] Fig.13 It is a schematic diagram of a second embodiment of the structure of a winding spindle fixing device;

[0034] Fig.14 It is a partially enlarged schematic diagram of the structural section of the H-type bobbin and the winding spindle in the unfixed state;

[0035] Fig.15 It is a partially enlarged schematic diagram of the structural section of the H-type bobbin and the winding spindle in a fixed state;

[0036] Fig.16 It is a partially enlarged schematic diagram of the structure section of the first embodiment of the tray supporting the lower edge of the yarn tube;

[0037] Fig.17 A partially enlarged schematic diagram of the second embodiment of the structure section of the tray supporting the lower edge of the yarn tube

[0038] Reference numerals:

[0039] 1. H-type bobbin; 11. Upper edge of bobbin; 12. Bobbin body; 13. Lower edge of bobbin; 14. Bobbin cavity; 2. Ingot cap assembly; 21. Inner ferrule; 211. Outer travel surface; 2111. Steel ball hole; 2112. Steel ball; 212. First limiting groove; 213. Second limiting groove; 214. First pressing surface; 215. First retaining ring; 216. Second retaining ring; 22. Outer ferrule; 221. Second pressing surface; 222. Inner travel surface; 223. Fixed groove; 224. Limiting ring; 225. Accommodating groove; 3. Ingot rod; 31. Annular groove; 32. Boss; 34. Tray; 341. Anti-skid pad; 342. Accommodating cavity; 4. Upper centering sleeve; 41. Upper spring; 5. Lower centering sleeve; 51. Lower spring DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0042] An H-type bobbin and winding spindle fixing device, such as Figure 1-Figure 17As shown, the H-type bobbin 1 is mainly a cylindrical bobbin body 12, and the upper and lower ends of the bobbin body 12 are respectively provided with a bobbin upper edge 11 and a bobbin lower edge 13 with a diameter larger than the bobbin body 12. The bobbin body 12 is used to wind the yarn transmitted by the winding machine, and a cylindrical through-going bobbin cavity 14 is provided in the center of the H-type bobbin 1. Figure 4 As shown in the cross-sectional view, it can be seen that the inner wall of the yarn tube cavity 14 in this embodiment is straight, and its upper and lower ends at the yarn tube upper edge 11 and the yarn tube lower edge 13 are also through cavities on the same plane. Figure 1 and Figure 2 The yarn tube cavity of the prior art shown in the figure has a simpler shape and is easier to manufacture, including a cylindrical spindle rod 3 for being sleeved in the yarn tube cavity 14. Similarly, the spindle rod 3 of this embodiment has the advantages of being easy to process and having a lower cost compared to the tapered spindle rod that is narrow at the top and wide at the bottom. Figure 5 and Figure 3 As shown, it also includes a tray 34 arranged at the bottom end of the spindle rod 3 for supporting the lower edge 13 of the bobbin and a spindle cap assembly 2 arranged at the top end of the spindle rod 3 for fastening the upper edge 11 of the bobbin. The upper outer surface of the spindle rod 3 is provided with a concave annular groove 31. The spindle cap assembly 2 and the annular groove 31 cooperate to lock and unlock to achieve the fixation of the H-type bobbin 1 and the spindle rod 3. Specifically: Figure 6-Figure 8 As shown, the ingot cap assembly 2 includes an inner sleeve 21 and an outer sleeve 22 which are arranged inside and outside. The inner sleeve 21 is hollow inside and its inner wall can fit with the outer wall of the ingot rod 3. The outer wall of the inner sleeve 21 is longitudinally spaced with a first limiting groove 212 and a second limiting groove 213 which are parallel to each other. The first limiting groove 212 and the second limiting groove 213 are annular grooves and are horizontally arranged. The lower side of the outer wall of the inner sleeve 21 is arranged as an outer stroke surface 211. A plurality of steel ball holes 2111 are circumferentially spaced at the upper end of the outer stroke surface 211. The plurality of steel ball holes 2111 are on the same horizontal plane. Steel balls 2112 can be accommodated in the steel ball holes 2111. Preferably, the steel ball holes 2111 and steel balls 2112 are arranged in pairs in four groups with equal spacing, such as Figure 8 As shown, the diameter O of the steel ball hole 2111 on the inner side of the inner sleeve 21 is smaller than the diameter of the steel ball 2112, so that the steel ball 2112 will not slip out of the steel ball hole 2111 inwardly, for the convenience of assembly and production, as shown in FIG. Figure 8As shown, the aperture P of the steel ball hole 2111 on the outer side of the inner ferrule 21 is not less than the diameter of the steel ball 2112, that is, the steel ball 2112 can escape from the steel ball hole 2111 outward; the inner side wall of the outer ferrule 22 is provided with an inner stroke surface 222, the inner stroke surface 222 and the outer stroke surface 211 are fitted with each other, and a fixing groove 223 is provided on the upper part of the inner stroke surface 222, and a limiting ring 224 is provided in the fixing groove 223, and the limiting ring 224 is an elastic ring and the inner end protrudes from the inner stroke surface 222. The limiting ring 224 is preferably made of rubber material. The inner stroke surface 222 can be relatively moved and limited with the first limiting groove 212 and the second limiting groove 213 by interference fit. The lower part of the inner stroke surface 222 is provided with a receiving groove 225 for accommodating the steel ball 2112. The depth of the receiving groove 225 is less than the diameter of the steel ball 2112. In this way, it can be ensured that when the steel ball hole 2111 moves outward, the steel ball 2112 can only partially enter the receiving groove 225, so that the steel ball 2112 is always in the space formed by the steel ball hole 2111 and the receiving groove 225 and cannot fall outward. Fig. 9 , Fig.12 , Fig.13 As shown, it also includes an upper spring 41 sleeved on the lower end of the outer wall of the inner ferrule 21, and a first annular retaining ring 215 is horizontally arranged on the outer wall of the inner ferrule 21. The upper end of the upper spring 41 presses against the first retaining ring 215, and an upper centering sleeve 4 is arranged below the upper spring 41. The lower end of the upper centering sleeve 4 can press against the upper edge 11 of the bobbin, and the upper end of the upper spring 41 presses against the first retaining ring 215, and the lower end presses against the upper centering sleeve 4; when the limiting ring 224 is in the first limiting groove 212, the steel ball 2112 is limited in the space formed by the steel ball hole 2111 and the accommodating groove 225, the inner ferrule 21 is fitted on the spindle rod 3 and can move up and down, the spindle cap assembly 2 is unlocked, and the H-type bobbin 1 It can be removed from the spindle rod 3; when the outer sleeve 22 is moved downward until the limiting ring 224 is in the second limiting groove 213, the inner stroke surface 222 squeezes the steel ball 2112 inward, and the steel ball 2112 moves inward in the steel ball hole 2111. Part of the surface of the steel ball 2112 protrudes from the inner wall of the inner sleeve 21 and enters the annular groove 31 for engagement, and the spindle cap assembly 2 is locked. The spindle cap assembly 2 uses the upper spring 41 to make the upper centering sleeve 4 press against the upper edge 11 of the yarn tube. At this time, the lower edge 13 of the yarn tube is pressed against the tray 34, and the H-type yarn tube 1 is fixed on the spindle rod 3 and can rotate with the rotation of the spindle so that the yarn transported by the winding machine is wound around the yarn tube body 12.

[0043] like Fig.14 and Fig.15As shown, a second annular retaining ring 216 can be horizontally arranged at the lower end of the outer wall of the inner ferrule 21. The horizontal position of the second retaining ring 216 is not higher than the horizontal position of the lower top surface of the inner ferrule 21 after the spindle cap assembly 2 and the spindle rod 3 are locked. The maximum diameter of the second retaining ring 216 is smaller than the diameter of the yarn tube cavity 14, that is, the second retaining ring 216 only plays a role in preventing the inner ferrule 21 from falling off in a natural state, and does not hinder the movement of the inner ferrule 21 when working. In this way, the upper spring 41 and the upper centering sleeve 4 are both sleeved on the outer wall of the inner ferrule 21 without falling off, so that the upper spring 41 and the upper centering sleeve 4 are connected to the spindle cap assembly 2 as a whole. When the H-type bobbin 1 needs to be installed or removed on the spindle rod 3, there is no need to operate the upper spring 41 and the upper centering sleeve 4 separately, which is convenient to use.

[0044] like Fig.14 and Fig.15 As shown, in order to make the upper centering sleeve 4 more firmly pressed against the upper edge 11 of the yarn tube, the upper centering sleeve 4 can be set as a cone with an inverted isosceles trapezoid in vertical section, the upper end diameter of the upper centering sleeve 4 is larger than the diameter of the yarn tube cavity 14, and the lower end of the upper centering sleeve 4 is fitted on the spindle rod 3 and extends into the yarn tube cavity 14. In this way, during the top-down installation of the upper centering sleeve 4, the conical surface of part of the upper centering sleeve 4 can increase the friction by fitting with the inner wall of the yarn tube cavity 14. In addition, the upper end side of the upper centering sleeve 4 presses against the upper edge 11 of the yarn tube, so that after the spindle rotates, the H-type yarn tube 1 can be ensured to rotate synchronously with the spindle rod 3 to reduce slippage.

[0045] On this basis, in order to avoid the H-type bobbin 1 and the spindle rod 3 from slipping due to synchronous rotation, a lower centering sleeve 5 can also be provided. The lower centering sleeve 5 is provided as a cone with an isosceles trapezoidal vertical section. The diameter of the lower end of the lower centering sleeve 5 is larger than the diameter of the yarn tube cavity 14. The upper end of the lower centering sleeve 5 is fitted on the spindle rod 3 and extends into the yarn tube cavity 14. A lower spring 51 is provided below the lower centering sleeve 5. A boss 32 is provided at the lower part of the spindle rod 3. The lower end of the lower spring 51 abuts against the top surface Q of the boss 32 (such as Figure 5 and Fig.16 The tray 34 is mounted on the boss 32. A receiving cavity 342 is provided in the middle of the tray 34 to receive the lower centering sleeve 5. The elastic force of the lower spring 51 is smaller than the elastic force of the upper spring 41. This arrangement allows the lower centering sleeve 5 to enter the receiving cavity 342 under the push of the upper spring 41 without hindering the fitting of the lower edge 13 of the yarn tube with the surface of the tray 34. The conical surface of the lower centering sleeve 5 fits with the inner wall of the yarn tube cavity 14 to increase friction. The lower centering sleeve 5 and the upper centering sleeve 4 act on the upper and lower ends of the yarn tube cavity 14, thereby ensuring that the H-type yarn tube 1 rotates concentrically with the spindle rod 3 without slipping.

[0046] In order to increase the friction between the lower edge 13 of the bobbin and the surface of the tray 34 so that they fit more closely, the tray 34 can also be provided with an anti-skid pad 341 on the upper surface. The anti-skid pad 341 is made of elastic material. When the lower edge 13 of the bobbin presses against the anti-skid pad 341, the anti-skid pad 341 will be compressed to obtain greater friction. Preferably, the anti-skid pad 341 is annular and made of rubber.

[0047] Provide further convenience for manual operation of the ingot cap assembly 2, such as Figure 7 As shown, a first pressing surface 214 is provided at the top of the inner ferrule 21 for convenient hand pressing, and a second pressing surface 221 is provided at the outer side surface of the outer ferrule 22 for convenient hand pressing. The first pressing surface 214 and the second pressing surface 221 can be pressed by both hands respectively, so that the inner ferrule 21 and the outer ferrule 22 produce relative movement; or the relative movement of the two can be achieved by pressing with one hand, for example, the thumb and middle finger jointly squeeze the second pressing surface 221, and the index finger presses the first pressing surface 214.

[0048] In order to improve production efficiency, the outer ferrule 22 except the limiting ring 224 can be integrally formed, the inner ferrule 21 except the ball hole 2111 and the first retaining ring 215 can be integrally formed, and the spindle rod 3 can be integrally formed.

[0049] like Fig.14 , Fig.15 and Fig.17 As shown, a method for using an H-type bobbin and a winding spindle fixing device comprises the following steps:

[0050] A. The yarn tube cavity 14 of the H-type bobbin 1 is sleeved on the spindle rod 3, the lower end of the lower spring 51 abuts against the top surface Q of the boss 32, and the upper end pushes the lower centering sleeve 5, and the lower centering sleeve 5 partially extends into the lower end of the yarn tube cavity 14 to form a certain upward thrust on the H-type bobbin 1. The conical side surface of the lower centering sleeve 5 forms a friction fit with the lower end of the yarn tube cavity 14, and the H-type bobbin 1 and the spindle rod 3 are placed coaxially;

[0051] B. In the default state, the limiting ring 224 is in the first limiting groove 212, the steel ball 2112 is limited in the space formed by the steel ball hole 2111 and the accommodating groove 225, the ingot cap assembly 2 is unlocked, and the ingot cap assembly 2 can move on the ingot rod 3, that is, when the inner side surface of the inner ferrule 21 is squeezed by the ingot rod 3, the steel ball 2112 can move outward without hindering the movement of the ingot rod 3;

[0052] C. Use your hands to squeeze the second pressing surface 221, and sleeve the spindle cap assembly 2 and the upper spring 41 and the upper centering sleeve 4 connected thereto on the spindle rod 3 and move downward, that is, the inner sleeve 21 and the outer sleeve 22 move downward in the same direction, and the upper spring 41 pushes the upper centering sleeve 4 to act on the upper end of the yarn tube cavity 14 so that the lower edge 13 of the yarn tube fits with the surface of the tray 34, and then the upper spring 41 is subjected to an upward reaction force to cause the inner sleeve 21 and the outer sleeve 22 to move relative to each other, that is, the inner sleeve 21 moves relative to the outer sleeve 22. The outer sleeve 22 moves upward and moves downward relatively, and the second pressing surface 221 is continuously pressed to move the limiting ring 224 from the first limiting groove 212 to the second limiting groove 213. Part of the surface of the steel ball 2112 protrudes out of the inner wall of the outer sleeve 22 and enters the annular groove 31 for clamping and fixing. The spindle cap assembly 2 is locked, and the H-type bobbin 1 is fixed on the spindle rod 3 and cannot be moved. At this time, the winding machine can be started to drive the spindle rod 3 to rotate, so that the yarn transported by the winding machine is wound on the bobbin body 12;

[0053] D. When the tube body 12 is full of yarn or the H-type tube 1 needs to be replaced in other circumstances, stop the rotation of the spindle rod 3, press the first pressing surface 214 downward by hand, and at the same time squeeze the second pressing surface 221 to move the outer sleeve 22 upward, so that the inner sleeve 21 and the outer sleeve 22 produce relative movement, that is, the inner sleeve 21 moves downward relatively, and the outer sleeve 22 moves upward relatively, so that the limiting ring 224 moves from the second limiting groove 213 to the first limiting groove 212, and the steel ball 2112 enters the space formed by the steel ball hole 2111 and the accommodating groove 225 from the annular groove 31, the engagement between the inner sleeve 21 and the spindle rod 3 is released, and the spindle cap assembly 2 is unlocked and can be removed from the spindle rod 3, thereby removing the H-type tube 1 from the spindle rod 3.

[0054] From the above description, it can be seen that the above-mentioned embodiment achieves the following technical effects: by placing the lower edge of the supporting yarn tube on the tray, the relative position of the H-type yarn tube and the spindle rod remains unchanged, avoiding the up and down displacement of the H-type yarn tube and ensuring the accuracy of installation; the elastic force of the upper spring drives the upper centering sleeve to push the upper edge of the yarn tube downward to further increase the friction between the H-type yarn tube and the tray, thereby ensuring the concentric rotation of the H-type yarn tube and the spindle rod and improving production efficiency; by moving the steel ball inwardly into the annular groove or outwardly into the receiving groove, the spindle cap assembly and the spindle rod are locked and unlocked, thereby realizing the fixation and separation between the H-type yarn tube and the spindle rod, and the installation and disassembly are convenient and easy to use.

[0055] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. An H-type bobbin and a winding spindle fixing device, wherein the H-type bobbin (1) is a bobbin body (12) whose main body is cylindrical, and the upper and lower ends of the bobbin body (12) are respectively provided with a bobbin upper edge (11) and a bobbin lower edge (13) having a diameter greater than that of the bobbin body (12), and the bobbin body (12) is used for winding a yarn transmitted by a winding machine, characterized in that: The H-shaped bobbin (1) is provided with a cylindrical through-going bobbin cavity (14) at the center thereof, comprising a cylindrical spindle rod (3) for being sleeved in the bobbin cavity (14), a tray (34) arranged at the bottom end of the spindle rod (3) for supporting the lower edge (13) of the bobbin, and a spindle cap assembly (2) arranged at the top end of the spindle rod (3) for fastening the upper edge (11) of the bobbin, and an inner concave annular groove (31) is provided on the upper outer surface of the spindle rod (3); The ingot cap assembly (2) comprises an inner ferrule (21) and an outer ferrule (22) which are arranged inside and outside the ingot rod (3); the inner ferrule (21) is hollow inside and its inner side wall can be fitted with the outer side wall of the ingot rod (3); the outer side wall of the inner ferrule (21) is longitudinally spaced with a first limiting groove (212) and a second limiting groove (213) which are parallel to each other; the first limiting groove (212) and the second limiting groove (213) are annular grooves and are horizontally arranged; the lower side of the outer side wall of the inner ferrule (21) is arranged as an outer stroke surface (211); a plurality of steel ball holes (2111) are circumferentially spaced at the upper end of the outer stroke surface (211); the plurality of steel ball holes (2111) are on the same horizontal plane; the steel ball holes (2111) can accommodate steel balls (2112); and the diameter of the steel ball holes (2111) on the inner side surface of the inner ferrule (21) is smaller than the diameter of the steel balls (2112); The inner side wall of the outer ferrule (22) is provided with an inner stroke surface (222), the inner stroke surface (222) and the outer stroke surface (211) are fitted with each other, a fixing groove (223) is provided on the upper part of the inner stroke surface (222), a limiting ring (224) is provided in the fixing groove (223), the limiting ring (224) is an elastic ring and the inner end protrudes from the inner stroke surface (222), the limiting ring (224) can form relative movement and limitation with the first limiting groove (212) and the second limiting groove (213) through interference fit, and a receiving groove (225) for receiving the steel ball (2112) is provided on the lower part of the inner stroke surface (222), and the depth of the receiving groove (225) is less than the diameter of the steel ball (2112); It also includes an upper spring (41) sleeved on the lower end of the outer wall of the inner ferrule (21), the outer wall of the inner ferrule (21) is horizontally provided with an annular first retaining ring (215), the upper end of the upper spring (41) abuts against the first retaining ring (215), an upper centering sleeve (4) is provided below the upper spring (41), and the lower end of the upper centering sleeve (4) can abut against the upper edge (11) of the bobbin; When the limiting ring (224) is in the first limiting groove (212), the steel ball (2112) is limited in the space formed by the steel ball hole (2111) and the accommodating groove (225), the inner sleeve (21) is fitted on the spindle rod (3) and can move up and down, the spindle cap assembly (2) is unlocked, and the H-type bobbin (1) can be removed from the spindle rod (3); the outer sleeve (22) is moved downward until the limiting ring (224) is in the second limiting groove (212). When the groove (213) is formed, the inner stroke surface (222) presses the steel ball (2112) inwardly, and the steel ball (2112) moves inwardly in the steel ball hole (2111). Part of the surface of the steel ball (2112) protrudes from the inner wall of the inner sleeve (21) and simultaneously enters into the annular groove (31) for engagement, the spindle cap assembly (2) is locked, the upper centering sleeve (4) abuts against the upper edge of the yarn tube (11), and the H-type yarn tube (1) is fixed on the spindle rod (3).

2. The H-type bobbin and winding spindle fixing device according to claim 1, characterized in that: The upper centering sleeve (4) is configured as a conical body with a vertical cross-section being an inverted isosceles trapezoid; the diameter of the upper end of the upper centering sleeve (4) is greater than the diameter of the yarn tube cavity (14); the lower end of the upper centering sleeve (4) is fitted onto the spindle rod (3) and extends into the yarn tube cavity (14).

3. The H-type bobbin and winding spindle fixing device according to claim 2, characterized in that: An anti-skid pad (341) is provided on the upper surface of the tray (34), and the anti-skid pad (341) is made of elastic material.

4. The H-type bobbin and winding spindle fixing device according to claim 3 is characterized in that: It also includes a lower centering sleeve (5), which is arranged as a conical body with a vertical cross-section of an isosceles trapezoid. The diameter of the lower end of the lower centering sleeve (5) is larger than the diameter of the yarn tube cavity (14). The upper end of the lower centering sleeve (5) is fitted on the spindle rod (3) and extends into the yarn tube cavity (14). A lower spring (51) is arranged below the lower centering sleeve (5). A boss (32) is arranged at the lower part of the spindle rod (3). The lower end of the lower spring (51) abuts against the top surface of the boss (32) to provide support for the lower centering sleeve (5). The tray (34) is mounted on the boss (32). A receiving cavity (342) is arranged in the middle of the tray (34) for receiving the lower centering sleeve (5). The elastic force of the lower spring (51) is smaller than the elastic force of the upper spring (41).

5. The H-type bobbin and winding spindle fixing device according to claim 4, characterized in that: The top of the inner ferrule (21) is configured as a first pressing surface (214) for convenient hand pressing, and the outer side surface of the outer ferrule (22) is configured as a second pressing surface (221) for convenient hand pressing.

6. An H-type bobbin and winding spindle fixing device according to any one of claims 1 to 5, characterized in that: The diameter of the steel ball hole (2111) on the outer side of the inner sleeve (21) is not less than the diameter of the steel ball (2112).

7. An H-type bobbin and winding spindle fixing device according to any one of claims 3 to 5, characterized in that: The limiting ring (224) and the anti-slip pad (341) are made of rubber.

8. The H-type bobbin and winding spindle fixing device according to claim 7, characterized in that: The outer ferrule (22) is partially formed as an integral unit except for the limiting ring (224), the inner ferrule (21) is partially formed as an integral unit except for the steel ball hole (2111) and the first retaining ring (215), and the spindle rod (3) is formed as an integral unit.

9. The H-type bobbin and winding spindle fixing device according to claim 8, characterized in that: The steel ball holes (2111) and the steel balls (2112) are arranged in pairs to form four groups with equal spacing.

10. A method for using the H-type bobbin and winding spindle fixing device according to claim 5, characterized in that: The following steps are included A. The yarn tube cavity (14) of the H-type yarn tube (1) is sleeved on the spindle rod (3), the tray (34) supports the lower edge (13) of the yarn tube, and the lower centering sleeve (5) partially extends into the lower end of the yarn tube cavity (14) to form a certain upward thrust on the H-type yarn tube (1); B. In a default state, the limiting ring (224) is in the first limiting groove (212), the steel ball (2112) is limited in the space formed by the steel ball hole (2111) and the receiving groove (225), the spindle cap assembly (2) is unlocked, and the spindle cap assembly (2) can move on the spindle rod (3); C. Use your hands to squeeze the second pressing surface (221), place the spindle cap assembly (2) and the upper spring (41) and the upper centering sleeve (4) connected thereto on the spindle rod (3) and move them downward. The upper spring (41) pushes the upper centering sleeve (4) to act on the upper end of the yarn tube cavity (14) so ​​that the lower edge (13) of the yarn tube fits with the surface of the tray (34). The upper spring (41) is subjected to an upward reaction force so that the inner sleeve (21) and the outer sleeve (22) produce relative movement, and continue to squeeze the second pressing surface (221). The two pressing surfaces (221) move the limiting ring (224) from the first limiting groove (212) to the second limiting groove (213), and part of the surface of the steel ball (2112) protrudes from the inner wall of the outer sleeve (22) and enters the annular groove (31) to be locked and fixed, thereby locking the spindle cap assembly (2). The H-type bobbin (1) is fixed on the spindle rod (3) and cannot be moved. At this time, the winding machine can be started to drive the spindle rod (3) to rotate, thereby causing the yarn transported by the winding machine to be wound around the bobbin body (12); D. When the tube body (12) is fully wound with yarn or the H-type tube (1) needs to be replaced in other circumstances, stop the rotation of the spindle rod (3), press the first pressing surface (214) downward by hand, and at the same time squeeze the second pressing surface (221) to move the outer sleeve (22) upward, so that the inner sleeve (21) and the outer sleeve (22) produce relative movement, the limiting ring (224) moves from the second limiting groove (213) to the first limiting groove (212), the steel ball (2112) enters the space formed by the steel ball hole (2111) and the accommodating groove (225) from the annular groove (31), the engagement between the inner sleeve (21) and the spindle rod (3) is released, the spindle cap assembly (2) is unlocked and can be removed from the spindle rod (3), and the H-type tube (1) is removed from the spindle rod (3).

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