A long fiber spindle for a two-for-one twisting machine

Abstract

The present invention relates to the technical field of textile machinery, and relates to a long-fiber spindle for use on a two-for-one twisting machine, comprising: a frame, a spindle rod, a spindle disk, a spindle seat, a horizontal clamping mechanism, an axial clamping mechanism, and a vibration isolation mechanism. The frame comprises columns and cross bars, and two cross bars are connected between two vertical columns; the two ends of the spindle rod are respectively connected to the spindle seat in a rolling manner; and a spindle disk is fixed in the middle of the spindle rod. The present invention is provided with a vibration isolation mechanism, which isolates a plurality of spindles through a shock absorbing mechanism to prevent the axial force of the spindles from resonating and causing severe vibration of the frame, thereby greatly affecting the disorder of the spindle winding sleeve. On the other hand, through the horizontal clamping mechanism and the axial clamping mechanism, the large-area clamping force of the clamping mechanism ensures the stable installation of the spindle, while preventing the severe vibration of the spindle.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, and in particular to a long-fiber spindle used on a two-for-one twisting machine. Background Art

[0002] The spindle is one of the main components for twisting and winding on the spinning machine. It is a combination of a slender rotating shaft supported at two points. There are spindles on the two-for-one twister, roving frame and spinning frame. The spinning spindle rod is inserted and rotated on the spindle seat group through the bearing. As the spindle rotates at a high speed on the spindle seat group for a long time, as the spindle wears on the spindle seat group, the spindle installation on the spindle seat group becomes loose, affecting the stability of the spindle.

[0003] The prior art has the following defects: 1. Multiple spindles are usually fixed on the same cross bar, which is convenient for the simultaneous winding of multiple groups of spindles; however, such a design will produce axial force due to the high-speed rotating spindles, and multiple groups of spindles installed on the same cross bar will produce resonance, which will cause the cross bar to vibrate significantly, thereby greatly affecting the winding of the spindles.

[0004] 2. Existing spindles are usually fixed to the frame by simple bolt connections. After long-term installation, the bolts will become fatigued, resulting in loose installation, which will increase the vibration of the spindle, thereby increasing the friction of the spindle and even seriously affecting the winding accuracy of the spindle.

[0005] 3. In the prior art, the spindle is a slender shaft-like component, and usually only the bottom of the spindle is installed on the frame. When the spindle rotates at high speed, the disturbance of such a slender component is relatively large. Therefore, if only the bottom of the spindle is fixed, the top of the spindle will have a large bend, which will cause large vibrations in the winding, resulting in poor winding accuracy. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a spindle on a two-for-one twisting machine, which can reduce the resonance that may be generated by the installation of multiple groups of spindles, and at the same time, reduce the bending deflection generated when the spindles are installed, thereby reducing the vibration of the spindles at high speed.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, according to the first aspect of this invention, there is provided a long-fiber spindle for a two-for-one twisting machine, comprising: a frame, a spindle bar, a spindle disk, a spindle seat, a horizontal clamping mechanism, an axial clamping mechanism, and a vibration isolation mechanism, wherein the frame comprises a column and a crossbar, and two crossbars are connected between two vertical columns; the two ends of the spindle bar are respectively connected to the spindle seat in a rolling manner; a spindle disk is fixed in the middle of the spindle bar, and rolling bearings are connected between the upper and lower ends of the spindle bar and the two spindle seats respectively;

[0010] Preferably, square through slots are respectively provided on the left and right sides of the crossbar, and the upper and lower spindle seats are respectively clamped in the upper and lower square through slots;

[0011] Preferably, a vibration isolation mechanism is also provided in the middle of the crossbar, and the vibration isolation mechanism includes: stud bolts, rubber blocks, and shock-absorbing steel plates. The rubber blocks are provided in the middle of the crossbar and separate the crossbar into two independent left and right parts.

[0012] Preferably, rubber blocks are respectively arranged in the middle of the two cross bars, through holes are respectively provided in the middle of the rubber blocks and the shock-absorbing steel plates, the stud bolts respectively pass through the through holes of the upper and lower rubber blocks, the two shock-absorbing steel plates are respectively sleeved on the stud bolts, and the two shock-absorbing steel plates are respectively fixed on the upper and lower surfaces of the rubber blocks.

[0013] Preferably, the shock-absorbing steel plate is composed of four rectangular steel plates stacked together with successively increasing lengths.

[0014] Preferably, the horizontal clamping mechanism comprises: a handle, a left support seat, a screw rod, a left clamping plate, a right clamping plate, and a right support seat.

[0015] Preferably, the left support seat is fixed on the left side of the cross bar, and the right support seat is fixed on the right side of the cross bar, and both sides of the screw rod are rollingly connected to the left support seat and the right support seat respectively.

[0016] Preferably, the threads on both sides of the screw rod have opposite rotation directions, the screw rod is threadedly connected to the left clamping plate and the right clamping plate respectively, and a shock absorbing plate is fixed to one side of the left clamping plate and the right clamping plate respectively.

[0017] Preferably, a handle is fixed to the left end of the screw rod; the left-side splint and the right-side splint are L-shaped structures consisting of a vertical portion and a horizontal portion respectively, the two sides of the vertical portion of the left-side splint are slidably connected to the inner wall of the square through groove on the horizontal bar, and the bottom surface of the horizontal portion of the left-side splint is slidably connected to the upper surface of the horizontal bar.

[0018] Preferably, the axial clamping mechanism comprises: a slider, a rotating plate, a rotating shaft, and an adjusting bolt. The slider is slidably connected to the screw rod, and the slider is slidably arranged on the cross bar.

[0019] Preferably, the rotating plate is rotatably connected to the slider via a rotating shaft, and the adjusting bolt is screwed to one end of the rotating plate.

[0020] Preferably, there are four groups of the horizontal clamping mechanisms and the axial clamping mechanisms respectively, two groups of the horizontal clamping mechanisms are arranged on the upper part of the upper cross bar, and the other two groups of the horizontal clamping mechanisms are arranged on the lower part of the lower cross bar.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a spindle on a two-for-one twisting machine, which has the following beneficial effects:

[0023] 1. In the prior art, multiple spindles are usually fixed on the same cross bar, which is convenient for the simultaneous winding of multiple groups of spindles. However, with such a design, since the high-speed rotating spindles will generate axial force, and multiple groups of spindles installed on the same cross bar will produce resonance, which will cause the cross bar to vibrate significantly, thus greatly affecting the winding of the spindles. The present invention provides a vibration isolation mechanism to isolate the cross bar into independent parts with rubber blocks, thereby effectively isolating the horizontal vibrations of each spindle. At the same time, the shock-absorbing steel plate and the rubber block are combined to greatly reduce the axial vibration generated by the spindles. Such a design greatly reduces the possibility of resonance when multiple groups of spindles are installed on the same cross bar, and greatly improves the installation stability of the spindles.

[0024] 2. Existing spindles are usually fixed to the frame by simple bolt connections. If installed in this way, the bolts will become fatigued after a long period of installation, resulting in loose installation, which will intensify the vibration of the spindle, thereby intensifying the friction of the spindle and even seriously affecting the winding of the spindle. The present invention increases the force-bearing area and clamping stability during spindle installation through a horizontal clamping mechanism, which greatly overcomes the problem that the force-bearing area is small when connected by simple bolts, resulting in easy loose installation. At the same time, the horizontal vibration of the spindle installed on the frame is greatly reduced. At the same time, a manually adjustable axial clamping mechanism is provided to tighten the spindle from both ends, greatly reducing the axial force of the spindle.

[0025] 3. In the prior art, the spindle is a slender shaft-shaped component, which usually only mounts the bottom of the spindle on the frame. When the spindle rotates at high speed, the disturbance of the slender component of the spindle is relatively large. If only the bottom of the spindle is fixed, the top of the spindle will be greatly bent, resulting in a large vibration in the winding, resulting in poor winding accuracy. Therefore, the present application greatly reduces the disturbance of the spindle rod and greatly improves the winding accuracy of the spindle by setting the spindle plate in the middle of the spindle rod and clamping the two ends of the top rod through a clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 It is an overall schematic diagram of the spindle of the present invention installed on the frame;

[0028] Figure 2 A cross-sectional view of a spindle of the present invention;

[0029] Figure 3 It is a cross-sectional view of the spindle of the present invention when it is clamped by the horizontal clamping mechanism;

[0030] Figure 4 A top view of the axial clamping mechanism of the present invention;

[0031] Figure 5 It is a top view of the vibration isolation mechanism in the present invention;

[0032] Figure 6 It is a left-side cross-sectional view of the left side clamping plate in the present invention arranged in the cross bar.

[0033] In the figure: 1. column, 2. cross bar, 3. shock-absorbing pad, 4. ingot plate, 5. ingot rod, 6. ingot seat, 61. rolling bearing, 7. horizontal clamping mechanism, 71. handle, 72. left support seat, 73. screw, 74. left splint, 75. right splint, 76. right support seat, 77. shock-absorbing plate, 8. axial clamping mechanism, 81. slider, 82. rotating plate, 83. rotating shaft, 84. adjusting bolt, 9. stud bolt, 10. rubber block, 11. shock-absorbing steel plate, 12. square through groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of this article clearer, the technical solutions in the embodiments of this article will be clearly and completely described below in conjunction with the drawings in the embodiments of this article. Obviously, the described embodiments are part of the embodiments of this article, not all of the embodiments. Based on the embodiments in this article, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this article. It should be noted that the embodiments in this article and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0035] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0036] Embodiment 1

[0037] See also Figure 1-2The present invention provides a long-fiber spindle for a two-for-one twisting machine, comprising: a frame, a spindle rod 5, a spindle plate 4, a spindle seat 6, a horizontal clamping mechanism 7, an axial clamping mechanism 8, and a vibration isolation mechanism. The frame comprises a column 1 and a crossbar 2, and two crossbars 2 are connected between two vertical columns 1; the two ends of the spindle rod 5 are respectively connected to the spindle seat 6 in a rolling manner; a spindle plate 4 is fixed to the middle of the spindle rod 5, and rolling bearings 61 are connected between the upper and lower ends of the spindle rod 5 and the two spindle seats 6 respectively;

[0038] Specifically, square through slots 12 are respectively provided on the left and right sides of the crossbar 2, and the upper and lower spindle seats 6 are respectively clamped in the upper and lower square through slots 12;

[0039] The frame is also provided with a spindle driving mechanism, which is a common mechanism in the prior art, and therefore, is not specifically described in the present invention.

[0040] In the above scheme, the applicant found that in the prior art, the spindle is a slender shaft-shaped component, which usually only installs the bottom of the spindle on the frame. When the spindle rotates at high speed, the disturbance of the slender component of the spindle is relatively large. Therefore, if only the bottom of the spindle is fixed, the top of the spindle will be greatly bent, resulting in a large vibration in the winding, resulting in poor winding accuracy. Therefore, the applicant sets the spindle disc in the middle of the spindle rod, and clamps the two ends of the mandrel by a clamping mechanism, which greatly reduces the disturbance of the spindle rod, reduces the distance between the spindle disc and the installation position in the spindle rod, and greatly reduces the possibility of bending of the mandrel. Such a design can greatly improve the winding accuracy of the spindle.

[0041] Embodiment 2

[0042] like Figure 5 As shown, a vibration isolation mechanism is also arranged in the middle of the crossbar 2, and the vibration isolation mechanism includes: stud bolts 9, rubber blocks 10, and shock-absorbing steel plates 11. The rubber blocks 10 are arranged in the middle of the crossbar 2 and separate the crossbar 2 into two independent left and right parts.

[0043] Specifically, rubber blocks 10 are respectively arranged in the middle of the two cross bars 2, and through holes are respectively provided in the middle of the rubber blocks 10 and the shock-absorbing steel plates 11. The stud bolts 9 pass through the through holes of the upper and lower rubber blocks 10 respectively, and the two shock-absorbing steel plates 11 are respectively sleeved on the stud bolts 9, and the two shock-absorbing steel plates 11 are respectively fixed on the upper and lower surfaces of the rubber blocks 10.

[0044] Specifically, the shock-absorbing steel plate 11 is composed of four rectangular steel plates with successively increasing lengths stacked together.

[0045] In the above scheme, the rubber block in the vibration isolation mechanism can isolate the crossbar into independent parts. Therefore, when the spindle rotates at high speed, the horizontal vibration generated by it will be isolated. At the same time, the present invention combines the shock-absorbing steel plate with the rubber block. The shock-absorbing steel plate is stacked together by multiple steel plates of different sizes, which can greatly reduce the axial vibration generated by the spindle. Therefore, when different spindles rotate at high speed, the axial force generated will be effectively damped by the shock-absorbing steel plate. Therefore, such a design can greatly reduce the possibility of resonance generated by multiple groups of spindles installed on the same crossbar, and greatly improve the installation stability of the spindles.

[0046] Embodiment 3

[0047] like Figure 3 As shown, the horizontal clamping mechanism 7 in the present invention includes: a handle 71, a left support seat 72, a screw rod 73, a left clamping plate 74, a right clamping plate 75, and a right support seat 76.

[0048] Specifically, the left support seat 72 is fixed on the left side of the cross bar 2, the right support seat 76 is fixed on the right side of the cross bar 2, and both sides of the screw rod 73 are rollingly connected to the left support seat 72 and the right support seat 76 respectively.

[0049] Specifically, the threads on both sides of the screw rod 73 have opposite rotation directions, and the screw rod 73 is threadedly connected to the left clamping plate 74 and the right clamping plate 75 respectively. A shock absorbing plate 77 is fixed to one side of the left clamping plate 74 and the right clamping plate 75 respectively.

[0050] like Figure 6 As shown, a handle 71 is fixed to the left end of the screw rod 73; the left side clamp plate 74 and the right side clamp plate 75 are L-shaped structures composed of a vertical part and a horizontal part respectively, and the two sides of the vertical part of the left side clamp plate 74 are slidably connected to the inner wall of the square through groove 12 on the cross bar 2, and the bottom surface of the horizontal part of the left side clamp plate 74 is slidably connected to the upper surface of the cross bar 2.

[0051] In the above scheme, by manually driving the horizontal clamping mechanism, the clamping movement of the left clamping plate 74 and the right clamping plate 75 can be stably and firmly driven, and the clamping plates can be firmly clamped on the spindle seat 6. Since the area of ​​the clamping plate is larger than that of the spindle seat, the clamping surface is much larger than the mechanical fixing method such as simple bolt connection in the prior art. Therefore, the clamping stability of such installation is much higher than that of simple bolt connection. At the same time, manually adjusting the distance between the clamping plates can adapt to the installation of spindles of different sizes, greatly improving its applicability.

[0052] Embodiment 4

[0053] like Figure 4 As shown, the axial clamping mechanism 8 includes: a slider 81, a rotating plate 82, a rotating shaft 83, and an adjusting bolt 84. The slider 81 is slidably connected to the screw rod 73, and the slider 81 is slidably arranged on the cross bar 2.

[0054] Specifically, the rotating plate 82 is rotatably connected to the slider 81 via a rotating shaft 83 , and the adjusting bolt 84 is screwed to one end of the rotating plate 82 .

[0055] Specifically, there are four groups of the horizontal clamping mechanisms 7 and the axial clamping mechanisms 8 , two groups of the horizontal clamping mechanisms 7 are arranged on the upper part of the upper cross bar 2 , and the other two groups of the horizontal clamping mechanisms 7 are arranged on the lower part of the lower cross bar 2 .

[0056] In the above scheme, a manually adjustable horizontal position of the slider 81 is provided to facilitate adjustment of the position of the clamping device relative to the spindle seat 6. At the same time, the position of the rotating plate 82 can be rotated. When installation is not required, the rotating plate 82 can be rotated to the other side to prevent affecting the installation of the spindle seat.

[0057] The axial clamping mechanism is arranged in this way, so that the spindle can be tightened from both ends and the vertical position of the spindle seat 6 can be properly adjusted. On the one hand, it can facilitate the axial installation of the spindle, and on the other hand, it can greatly reduce the axial vibration of the spindle.

[0058] The present invention has the following technical advantages by setting a vibration isolation mechanism and clamping the spindle rod with two heads:

[0059] First, in the prior art, multiple spindles are usually fixed on the same cross bar, which is convenient for the simultaneous winding of multiple groups of spindles. However, such a design will cause resonance due to the high-speed rotating spindles generating axial force, and multiple groups of spindles installed on the same cross bar. This will cause the cross bar to vibrate significantly, thus greatly affecting the winding of the spindles. The present invention provides a vibration isolation mechanism to isolate the cross bar into independent parts with rubber blocks, thereby effectively isolating the horizontal vibrations of each spindle. At the same time, the shock-absorbing steel plate and the rubber block are combined to greatly reduce the axial vibration generated by the spindles. Such a design greatly reduces the possibility of resonance when multiple groups of spindles are installed on the same cross bar, and greatly improves the installation stability of the spindles.

[0060] Secondly, the existing spindles are usually fixed to the frame by simple bolt connections. If installed in this way, the bolts will fatigue after a long period of installation, resulting in loose installation, which will intensify the vibration of the spindle, thereby increasing the friction of the spindle and even seriously affecting the winding of the spindle. The present invention increases the force-bearing area and clamping stability during spindle installation through a horizontal clamping mechanism, which greatly overcomes the problem that the force-bearing area is small when connected by simple bolts, resulting in easy loose installation. At the same time, the horizontal vibration of the spindle installed on the frame is greatly reduced. At the same time, a manually adjustable axial clamping mechanism is provided to tighten the spindle from both ends, greatly reducing the axial force of the spindle.

[0061] Finally, in the prior art, the spindle is a slender shaft-shaped component, which usually only mounts the bottom of the spindle on the frame. When the spindle rotates at high speed, the disturbance of the slender component of the spindle is relatively large. If only the bottom of the spindle is fixed, the top of the spindle will be greatly bent, resulting in a large vibration in the winding, resulting in poor winding accuracy. Therefore, the present application greatly reduces the disturbance of the spindle rod and greatly improves the winding accuracy of the spindle by setting the spindle plate in the middle of the spindle rod and clamping the two ends of the top rod through a clamping mechanism.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long fiber spindle for a two-for-one twisting machine, comprising: A frame, a spindle rod (5), a spindle plate (4), a spindle seat (6), a horizontal clamping mechanism (7), an axial clamping mechanism (8), and a vibration isolation mechanism, wherein the frame comprises a column (1) and a cross bar (2), wherein two cross bars (2) are connected between two columns (1); a shock-absorbing pad (3) is provided at the bottom of the column (1), and the frame is characterized in that: two ends of the spindle rod (5) are respectively connected to the spindle seat (6) in a rolling manner; a spindle plate (4) is fixed to the middle of the spindle rod (5), and rolling bearings (61) are respectively connected between the upper and lower ends of the spindle rod (5) and the two spindle seats (6); square through grooves (12) are respectively opened on the left and right sides of the cross bar (2), and the upper and lower spindle seats (6) are respectively clamped in the upper and lower square through grooves (12); A vibration isolation mechanism is also provided in the middle of the crossbar (2), the vibration isolation mechanism comprising: a stud bolt (9), a rubber block (10), and a shock-absorbing steel plate (11), wherein the rubber block (10) is provided in the middle of the crossbar (2) and separates the crossbar (2) into two independent left and right parts; A rubber block (10) is respectively arranged in the middle of the two cross bars (2); through holes are respectively arranged in the middle of the rubber block (10) and the shock-absorbing steel plate (11); the stud bolts (9) respectively pass through the through holes of the upper and lower rubber blocks (10); the two shock-absorbing steel plates (11) are respectively sleeved on the stud bolts (9); and the two shock-absorbing steel plates (11) are respectively fixed on the upper and lower surfaces of the rubber block (10).

2. A long fiber spindle for a two-for-one twisting machine according to claim 1, characterized in that: The shock-absorbing steel plate (11) is composed of four rectangular steel plates whose lengths increase successively and are stacked.

3. A long fiber spindle for a two-for-one twisting machine according to claim 2, characterized in that: The horizontal clamping mechanism (7) comprises a handle (71), a left support seat (72), a screw rod (73), a left clamping plate (74), a right clamping plate (75), and a right support seat (76).

4. A long fiber spindle for a two-for-one twisting machine according to claim 3, characterized in that: The left support seat (72) is fixed on the left side of the cross bar (2), the right support seat (76) is fixed on the right side of the cross bar (2), and the two sides of the screw rod (73) are respectively connected in a rolling manner to the left support seat (72) and the right support seat (76).

5. A long fiber spindle for a two-for-one twisting machine according to claim 4, characterized in that: The threads on both sides of the screw rod (73) are in opposite rotation directions. The screw rod (73) is threadedly connected to the left clamping plate (74) and the right clamping plate (75) respectively. A damping plate (77) is fixed to one side of the left clamping plate (74) and the right clamping plate (75) respectively.

6. A long fiber spindle for a two-for-one twisting machine according to claim 5, characterized in that: A handle (71) is fixed to the left end of the screw rod (73); the left clamping plate (74) and the right clamping plate (75) are L-shaped structures consisting of a vertical portion and a horizontal portion, the vertical portions of the left clamping plate (74) are slidably connected to the inner wall of the square through groove (12) on the horizontal bar (2), and the bottom surface of the horizontal portion of the left clamping plate (74) is slidably connected to the upper surface of the horizontal bar (2).

7. A long fiber spindle for a two-for-one twisting machine according to claim 6, characterized in that: The axial clamping mechanism (8) comprises a slider (81), a rotating plate (82), a rotating shaft (83), and an adjusting bolt (84); the slider (81) is slidably connected to the screw rod (73); and the slider (81) is slidably disposed on the crossbar (2).

8. The long fiber spindle for a two-for-one twisting machine according to claim 7, characterized in that: The rotating plate (82) is rotatably connected to the slider (81) via a rotating shaft (83), and the adjusting bolt (84) is screwed to one end of the rotating plate (82).

9. A long fiber spindle for a two-for-one twisting machine according to claim 8, characterized in that: There are four groups of the horizontal clamping mechanism (7) and the axial clamping mechanism (8), two groups of the horizontal clamping mechanism (7) are arranged on the upper part of the cross bar (2), and the other two groups of the horizontal clamping mechanism (7) are arranged on the lower part of the cross bar (2).

Images