Spinning frame and pipe grabber thereof

Abstract

The bobbin grabber comprises a base, a bobbin grabbing shell and a sliding block, the bobbin grabbing shell is arranged on the base, a bobbin grabbing cavity penetrating up and down is formed in the center of the bobbin grabbing shell, a bobbin can penetrate through the bobbin grabbing cavity, the sliding block is arranged above the bobbin grabbing shell, and the bobbin grabbing shell is arranged on the base. The sliding block moves up and down along the bobbin grabbing shell and at least covers part of the tops of bobbins. And an avoiding inclined plane is arranged at the upper part of the pipe grabbing shell. According to the utility model, the avoiding inclined surface is arranged at the upper part of the tube grabbing shell to prevent the tube grabbing device from conflicting with a pressure distributor on a cradle, so that the tube grabbing cavity of the tube grabbing device can be set to be larger, the requirement on positioning accuracy is reduced, and the error-tolerant rate is improved.

Description

Technical Field

[0001] The utility model relates to a spinning frame and a tube grabber thereof. Background Art

[0002] Compact spinning is an advanced spinning technology that can produce higher quality yarns with better yarn uniformity, strength and wear resistance than traditional ring spinning. In the compact spinning process, the pressure distributor is added to ensure that the fibers are subjected to uniform and appropriate pressure throughout the spinning and drafting process, which is essential for producing high-quality yarns. Therefore, when the compact spinning machine is modified, a pressure distributor will be installed on the cradle. When the spinning frame is colony-modified, the tube grabber is used to grab the full bobbin and replace the empty bobbin to be spun. If the tube grabber cavity is set larger, the positioning accuracy requirement will be reduced and the fault tolerance rate will be high. But the problem that follows is that the pressure distributor installed on the cradle will conflict with the tube grabber. Utility Model Content

[0003] The purpose of the utility model is to provide a spinning frame and a tube grabber thereof to solve the technical problems mentioned in the above background technology.

[0004] The technical solution to achieve the purpose of the utility model is: a tube grabber of a spinning machine, comprising a base, a tube grabbing shell and a slider, the tube grabbing shell is arranged on the base, a tube grabbing cavity running through the upper and lower parts is arranged in the center of the tube grabbing shell, the tube grabbing cavity is for the yarn tube to pass through, the slider is arranged above the tube grabbing shell, the slider moves up and down along the tube grabbing shell and covers at least part of the top of the yarn tube; an avoidance slope is arranged on the upper part of the tube grabbing shell.

[0005] Furthermore, the avoidance slope is inclined inward from bottom to top.

[0006] Furthermore, a first guide portion is provided on the pipe grasping shell, and a second guide portion matching the first guide portion is provided on the sliding block.

[0007] Furthermore, threaded holes are provided on both sides of the slider, stepped holes are provided on both sides of the pipe grabbing shell, connecting rods are passed through the stepped holes and connected to the threaded holes on both sides of the slider, and a spring for tightening the slider downward is sleeved on the connecting rods.

[0008] Furthermore, arc-shaped grooves inclined inward from top to bottom are provided on both sides of the pipe-grasping shell.

[0009] Furthermore, a pressure block is arranged on the side wall of the tube grasping cavity, a piston hole connected to the tube grasping cavity is opened on the side of the tube grasping shell opposite to the pressure block, a piston head is arranged in the piston hole, and the piston head is suitable for clamping the yarn tube with the pressure block when extending out of the piston hole.

[0010] A spinning frame comprises a plurality of cradles arranged on one side of a drafting mechanism and a plurality of pipe grabbers arranged on one side of a doffing mechanism, a pressure distributor is arranged at one end of the cradle close to the pipe grabber, and the avoidance slope is arranged on the upper surface of the pipe grabber shell on the side facing the pressure distributor.

[0011] By adopting the above technical solution, the utility model has the following beneficial effects:

[0012] (1) The utility model provides an avoidance slope on the upper part of the pipe grabbing shell to avoid the pipe grabber from conflicting with the pressure distributor on the cradle. Therefore, the pipe grabber can set the pipe grabbing cavity larger, reduce the positioning accuracy requirement, and improve the fault tolerance rate.

[0013] (2) The utility model has a first guide portion disposed on the pipe grasping shell, and a second guide portion matching the first guide portion disposed on the slider, which can maintain the stability and reliability of the guide of the slider and the pipe grasping shell.

[0014] (3) The utility model is provided with arc grooves on both sides of the tube gripping shell to avoid affecting the yarn loading of adjacent full tubes during the process of holding the tube, thereby improving the yarn quality and increasing the yarn capacity of the tube.

[0015] (4) The utility model clamps the yarn tube by the pressure block and the piston head, and there is no need to replace the tube grabbing shell as a whole, so the tube grabbing device can be used for yarn tubes of different models, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the relationship between the drafting part and the doffing position of the spinning frame of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the pipe grabber of the present utility model.

[0019] Figure 3 It is an exploded view of the pipe grabber of the present utility model.

[0020] The numbers in the accompanying drawings are: base 1, tube grabbing shell 2, tube grabbing cavity 2-1, avoidance slope 2-2, first guide part 2-3, arc groove 2-4, slider 3, second guide part 3-1, pressure block 4, piston head 5, cradle 6, pressure distributor 7. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the scope of protection of the utility model.

[0027] (Example 1)

[0028] See Figure 1The spinning frame of this embodiment includes a plurality of cradles 6 arranged on one side of the drafting mechanism and a plurality of pipe grabbers arranged on one side of the doffing mechanism. A pressure distributor 7 is arranged at one end of the cradle 6 close to the pipe grabber, and an avoidance slope 2-2 is arranged on the upper surface of the pipe grabbing housing 2 on the side facing the pressure distributor 7. Avoidance slopes 2-2 are respectively arranged on both sides of the upper part of the pipe grabbing housing 2 to avoid conflict between the pipe grabber and the pressure distributor 7 on the cradle 6, so the pipe grabber can set the pipe grabbing cavity 2-1 larger, reduce the positioning accuracy requirement, and improve the fault tolerance rate.

[0029] For details, see Figure 2 The tube grabber of the spinning frame includes a base 1, a tube grabbing shell 2 and a slider 3. The tube grabbing shell 2 is arranged on the base 1. A tube grabbing cavity 2-1 running through the upper and lower parts is arranged in the center of the tube grabbing shell 2. The tube grabbing cavity 2-1 is for the yarn tube to pass through. The slider 3 is arranged above the tube grabbing shell 2. The slider 3 moves up and down along the tube grabbing shell 2 and covers at least part of the top of the yarn tube. Avoidance slopes 2-2 are respectively arranged on both sides of the upper part of the tube grabbing shell 2, and the avoidance slopes 2-2 are inclined inward from bottom to top.

[0030] There are threaded holes on both sides of the slider 3, and step holes on both sides of the tube grabbing housing 2. The connecting rod is inserted into the step holes and connected to the threaded holes on both sides of the slider 3. The spring for tightening the slider downward is sleeved on the connecting rod. When grabbing the bobbin, the tube grabbing housing 2 is pressed downward, and the slider 3 can move upward along the tube grabbing housing 2 to perform buffering adjustment to protect the spindle.

[0031] See Figure 3 The tube-grabbing housing 2 is provided with a first guide portion 2-3, and the slider 3 is provided with a second guide portion 3-1 matching the first guide portion 2-3, so that the slider 3 can move along the guide. The first guide portion 2-3 of the tube-grabbing housing 2 is a convex block or a groove, and the second guide portion 3-1 of the slider 3 is a corresponding matching groove or convex block, so that the groove of the second guide portion 3-1 of the slider 3 matches the convex block of the first guide portion 2-3, or the convex block of the second guide portion 3-1 of the slider 3 matches the groove of the first guide portion 2-3, so that the slider 3 can move up and down along the tube-grabbing housing 2. As a preferred solution, the first guide portion 2-3 of the tube-grabbing housing 2 is a structure that is small at the top and large at the bottom, and the second guide portion 3-1 of the slider 3 is a corresponding structure that is small at the top and large at the bottom, so that it has a large adjustment amount, and the slider 3 and the tube-grabbing housing 2 have the best reset accuracy.

[0032] Arc grooves 2-4 inclined inward from top to bottom are arranged on both sides of the gripping tube housing 2 to avoid affecting the yarn feeding of adjacent full bobbins during the holding process of the bobbins, thereby improving the yarn quality and increasing the yarn capacity of the bobbins.

[0033] A pressure block 4 is arranged on the side wall of the tube grabbing cavity 2-1, and a piston hole communicating with the tube grabbing cavity is provided on the side opposite to the pressure block 4 of the tube grabbing housing 2, and a piston head 5 is arranged in the piston hole, and the piston head 5 is suitable for clamping the bobbin with the pressure block 4 when extending out of the piston hole. The piston head 5 can be controlled by arranging an air bag at the tail of the piston rod, or other methods are also possible. The pressure block 4 and the piston head 5 are both made of flexible materials with high friction resistance. The bobbin is clamped by the pressure block 4 and the piston head 5, and the tube grabber can be applied to bobbins of different models without replacing the tube grabbing housing 2 as a whole, and has good versatility.

[0034] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tube grabber for a spinning frame, characterized in that: The invention comprises a base (1), a tube grabbing shell (2) and a slider (3); the tube grabbing shell (2) is arranged on the base (1); a tube grabbing cavity (2-1) penetrating from top to bottom is arranged at the center of the tube grabbing shell (2); the tube grabbing cavity (2-1) is used for the yarn tube to pass through; the slider (3) is arranged above the tube grabbing shell (2); the slider (3) moves up and down along the tube grabbing shell (2) and covers at least part of the top of the yarn tube; and an avoidance slope (2-2) is arranged on the upper part of the tube grabbing shell (2).

2. The tube grabber of a spinning frame according to claim 1, characterized in that: The avoidance slope (2-2) is inclined inward from bottom to top.

3. The tube grabber of a spinning frame according to claim 1, characterized in that: The pipe grasping shell (2) is provided with a first guide portion (2-3), and the sliding block (3) is provided with a second guide portion (3-1) matching the first guide portion (2-3).

4. The tube grabber of a spinning frame according to claim 1, characterized in that: The slider (3) is provided with threaded holes on both sides, the pipe grasping housing (2) is provided with step holes on both sides, the connecting rod is passed through the step holes and connected to the threaded holes on both sides of the slider (3), and the spring for tightening the slider downward is sleeved on the connecting rod.

5. The tube grabber of a spinning frame according to claim 1, characterized in that: Arc-shaped grooves (2-4) inclined inwards from top to bottom are arranged on both sides of the pipe-grabbing housing (2).

6. The tube grabber of a spinning frame according to claim 1, characterized in that: A pressure block (4) is arranged on the side wall of the tube grasping cavity (2-1); a piston hole communicating with the tube grasping cavity is provided on the side of the tube grasping housing (2) opposite to the pressure block (4); a piston head (5) is arranged in the piston hole; and the piston head (5) is suitable for clamping the yarn tube with the pressure block (4) when extending out of the piston hole.

7. A spinning frame, characterized in that: The invention comprises a plurality of cradles (6) arranged on one side of the drafting mechanism and a plurality of pipe grabbers as described in any one of claims 1 to 6 arranged on one side of the yarn dropping mechanism, wherein a pressure distributor (7) is arranged at one end of the cradle (6) close to the pipe grabber, and the avoidance slope (2-2) is arranged on the upper surface of the pipe grabbing shell (2) on the side facing the pressure distributor (7).

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