Doffing grabbing mechanism of spinning frame

Abstract

The utility model relates to the technical field of doffing mechanisms, and discloses a spinning frame doffing grabbing mechanism which comprises a fixing plate and a rubber cone cylinder, a push plate is transversely arranged at the bottom of the fixing plate, a plurality of vertical cylinders are fixed on the surface of the fixing plate at equal intervals, connecting rods are vertically fixed on the surface of the push plate at the vertical cylinders, and the connecting rods can penetrate into the vertical cylinders in a sliding mode. A sliding block which can be slidably arranged in the vertical cylinder is fixed to the tail end of the connecting rod, a permanent magnet is fixedly embedded into the sliding block, and an electromagnet is fixedly embedded into the upper portion of the interior of the vertical cylinder. According to the technical scheme, the rubber cones are evenly arranged on the surface of the fixing plate, the penetrating opening is formed in the middle of the fixing plate, the rubber cones can be matched with and inserted into bobbins with different inner diameters, the rubber cones are squeezed towards the inner side, the bobbins can be locked and grabbed through the reset acting force of the rubber cones, and then the bobbins are pushed and taken down through the push plate. The transmission structures involved in the grabbing process are fewer and simpler, faults are not prone to occurring, and it can be ensured that the yarn barrel is stably grabbed for doffing operation.

Description

Technical Field

[0001] The utility model relates to the technical field of doffing mechanisms, in particular to a doffing gripping mechanism for a spinning frame. Background Art

[0002] A spinning frame is a spinning machine that stretches, twists and winds semi-finished roving or slivers into fine yarn tubes during the spinning process. A doffing machine is a device used to remove the yarn tubes from textile production machines. Traditionally, the yarn tubes are removed manually, which is a waste of manpower and has low work efficiency. The doffing machine can automatically remove the yarn tubes from textile production, which is very simple and convenient.

[0003] The most important mechanism in the doffing machine is its yarn bobbin gripping structure. The existing technology clamps the yarn bobbin by starting the clamping frame mechanism. When gripping, it is necessary to synchronously control multiple gripping mechanisms to lock the yarn bobbin at the same time and release it at the same time, which is prone to equipment failure and there is a problem of air leakage causing the grabbed yarn bobbin to fall, affecting the doffing operation. Therefore, we propose a doffing gripping mechanism for a spinning frame. Utility Model Content

[0004] The utility model aims to provide a yarn-dropping gripping mechanism for a spinning frame, wherein rubber cones are evenly arranged on the surface of a fixed plate and a through hole is opened in the middle, so that the rubber cones can be adapted to yarn tubes with different inner diameters and inserted, and the rubber cones can be squeezed inwardly to lock the yarn tubes and grab them by utilizing their resetting force, and then the yarn tubes can be pushed and removed by utilizing a push plate, and the transmission structures involved in the gripping process are fewer and simpler, less prone to failures, and can ensure stable gripping of the yarn tubes for yarn drop operations, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spinning machine doffing gripping mechanism, comprising a fixed plate and a rubber cone cylinder, wherein a plurality of rubber cone cylinders are provided, and the plurality of rubber cone cylinders are evenly distributed on the surface of the fixed plate, and the upper part of the rubber cone cylinder is embedded in the fixed plate to realize the firm fixation of the two, and a through hole is vertically opened in the middle position of the rubber cone cylinder, and a push plate parallel to the fixed plate is horizontally provided at the bottom of the fixed plate, and the push plate horizontally penetrates the rubber cone cylinder through the through hole, and a plurality of vertical cylinders are equidistantly fixed on the surface of the fixed plate, and a connecting rod is vertically fixed on the surface of the push plate at the vertical cylinder, and the connecting rod can be slidably inserted into the vertical cylinder, and a slider slidably placed in the vertical cylinder is fixed at the end of the connecting rod, a permanent magnet is embedded and fixed in the slider, and an electromagnet is embedded and fixed in the upper part of the vertical cylinder.

[0006] By adopting the above technical solution, the fixed plate is installed on the doffing machine, and the transmission structure of the doffing machine is used to drive the movement, so that the rubber cone is aligned with the yarn tube, and then the yarn tube is inserted and locked to grasp it, and then the push plate is used to push the yarn tube to remove it, and finally the same principle can be used to grasp and replace the new yarn tube.

[0007] Optionally, a mounting bracket is fixed to a surface of one side of the fixing plate close to the vertical cylinder, and the mounting bracket is fixed on the surface of the fixing plate at equal distances.

[0008] By adopting the above technical solution, the fixing plate is mounted on the transmission mechanism of the doffing machine through the mounting brackets evenly distributed on the surface of the fixing plate.

[0009] Optionally, a through hole communicating with the vertical cylinder is provided on the surface of the fixing plate at the connecting rod, and the connecting rod passes through the through hole into the vertical cylinder.

[0010] By adopting the above technical solution, the connecting rod can slidably penetrate into the interior of the vertical cylinder through the through hole.

[0011] Optionally, the width of the through-opening is greater than the width of the push plate, and the push plate passes through the middle position of the through-opening.

[0012] By adopting the above technical solution, the push plate can move up and down through the through-hole without contacting the rubber cone.

[0013] Optionally, the mounting frame is configured to be L-shaped, and a through hole is provided on one side of the mounting frame parallel to the fixing plate.

[0014] By adopting the above technical solution, the holes on the surface of the mounting plate are used to penetrate the bolts, so that the mounting plate is finally locked and the fixing plate is installed.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The technical solution of the present application is to evenly arrange rubber cones on the surface of the fixed plate and open a through hole in the middle, so that the rubber cones can adapt to and insert yarn tubes with different inner diameters. The rubber cones can be squeezed inward to lock the yarn tube and grab it by utilizing its resetting force, and then the yarn tube can be pushed and removed by utilizing the push plate. The transmission structure involved in the grasping process is fewer and simpler, which is not prone to failure and can ensure stable grasping of the yarn tube for yarn dropping operation.

[0017] 2. The technical solution of the present application provides an opening so that the rubber cone can be slightly deformed inward when inserted into the yarn tube, and then the yarn tube can be locked by utilizing the reset force, and the through opening can facilitate the push plate to pass through the rubber cone to facilitate the subsequent pushing out of the yarn tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the doffing gripping mechanism of the spinning frame of the utility model;

[0020] Figure 2 It is a schematic diagram of the bottom structure of the rubber cone of the doffing gripping mechanism of the spinning frame of the utility model;

[0021] Figure 3 It is a detailed structural schematic diagram of the vertical cylinder of the yarn-dropping gripping mechanism of the spinning frame of the utility model.

[0022] In the figure: 1, fixing plate; 11, mounting frame; 12, through hole; 2, rubber cone; 21, through hole; 3, push plate; 31, connecting rod; 32, slider; 321, permanent magnet; 4, vertical cylinder; 41, electromagnet. DETAILED DESCRIPTION

[0023] See also Figure 1-3 The utility model provides a technical solution: a spinning frame doffing gripping mechanism, comprising a fixed plate 1 and a rubber cone 2, a mounting bracket 11 is fixed to the surface of the fixed plate 1 on one side close to the vertical tube 4, the mounting bracket 11 is equidistantly fixed on the surface of the fixed plate 1, the mounting bracket 11 is arranged in an L-shape, when the fixed plate 1 is installed, the side of the mounting bracket 11 parallel to the fixed plate 1 is pressed against the surface of the doffing machine transmission structure, the side of the mounting bracket 11 parallel to the fixed plate 1 is provided with a through hole, so that the bolt passes through the hole and penetrates the mounting hole of the mounting bracket 11 and the doffing machine transmission mechanism, so as to realize the installation and fixation of the mounting bracket 11 and the fixed plate 1.

[0024] A plurality of rubber cone cylinders 2 are provided, and the plurality of rubber cone cylinders 2 are evenly distributed on the surface of the fixing plate 1. The upper portion of the rubber cone cylinder 2 is embedded in the fixing plate 1 to achieve a firm fixation of the two. A vertical through-hole 21 is opened in the middle of the rubber cone cylinder 2. When grasping the yarn tube, the rubber cone cylinder 2 is brought close to the yarn tube and inserted into the inner end of the yarn tube. Due to the existence of the through-hole 21, the rubber cone cylinder 2 is squeezed inward to cause a slight deformation, thereby generating a restoring force to lock the yarn tube.

[0025] A push plate 3 parallel to the fixed plate 1 is horizontally arranged at the bottom thereof, and the push plate 3 passes through the rubber cone cylinder 2 horizontally through the through hole 21, the width of the through hole 21 is greater than the width of the push plate 3, and the push plate 3 passes through the middle position of the through hole 21. When the rubber cone cylinder 2 is inserted into the end of the yarn tube, the push plate 3 will be located between the fixed plate 1 and the end of the yarn tube, and a plurality of vertical cylinders 4 are fixed equidistantly on the surface of the fixed plate 1, and an electromagnet 41 is embedded and fixed on the upper part of the interior of each vertical cylinder 4. A through hole 12 is opened on the surface of the fixed plate 1 below the vertical cylinder 4, and the through hole 12 is communicated with the interior of the vertical cylinder 4. A connecting rod 31 is vertically fixed to the surface of the push plate 3 at the through hole 12, and the connecting rod 31 can slide through the through hole 12 to In the vertical cylinder 4, a slider 32 which can be slidably placed in the vertical cylinder 4 is fixed at the end of the connecting rod 31, the slider 32 is close to the surface of the electromagnet, and a permanent magnet 321 is embedded and fixed inside the slider 32. When it is necessary to push and remove the yarn tube, the current direction of the electromagnet 41 is controlled so that the permanent magnet 321 and the opposite surface of the electromagnet 41 have the same magnetic poles, and the connecting rod 31 can be pushed downward to move the push plate 3 downward to push the yarn tube downward and remove it. Conversely, when it is necessary to remove the yarn tube, the current direction of the electromagnet 41 can be changed so that the permanent magnet 321 and the opposite surface of the electromagnet 41 have opposite magnetic poles, and the slider 32 is adsorbed upward, and the push plate 3 is locked to prevent the gravity of the push plate 3 from pressing the yarn tube downward to cause it to slip.

[0026] When in use, the fixing plate 1 is installed on the transmission structure of the yarn doffing machine through the mounting frame 11 and the bolts, and the electromagnet 41 is connected to the industrial control computer and powered. When the yarn doffing operation is performed, the fixing plate 1 is driven to move as a whole through the transmission mechanism, so that the rubber cone cylinder 2 at each position is aligned with the yarn tube on the spinning frame, and then the fixing plate 1 drives the rubber cone cylinder 2 to approach the yarn tube, so that the end of the rubber cone cylinder 2 is gradually inserted into the interior of the yarn tube, and the rubber cone cylinder 2 is slightly deformed in the direction of the hole 21 under the action of squeezing. Due to the reset action of the rubber cone cylinder 2 to the outside, the yarn tube can be locked, and at the same time, the push plate 3 is pushed close to the fixing plate 1, the permanent magnet 321 is close to the electromagnet 41, and the current direction of the electromagnet 41 is changed so that the electromagnet 41 The opposite surface of the permanent magnet 321 has opposite magnetic poles, and thus can absorb the slider 32 to limit the push plate 3 from approaching the surface of the fixed plate 1, preventing it from contacting and applying force to the yarn tube, and then driving the fixed plate 1 and using the rubber cone tube 2 to lift the inserted yarn tube and remove it from the spinning frame. After moving the yarn tube to the conveyor frame, the current direction of the electromagnet 41 is controlled to change so that the opposite surface of the electromagnet 41 and the permanent magnet 321 have the same magnetic poles, and the push plate 3 is pushed to a position away from the fixed plate 1 by the repulsive effect. After the push plate 3 hits the end of the yarn tube, it can be pushed down to pull the rubber cone tube 2 out from the inside of the end of the yarn tube, and then the new yarn tube can be grabbed by the same principle and placed on the yarn tube rack of the spinning frame.

Claims

1. A doffing gripping mechanism for a spinning frame, comprising a fixing plate (1) and a rubber cone (2), characterized in that: A plurality of the rubber cone cylinders (2) are provided, and the plurality of rubber cone cylinders (2) are evenly distributed on the surface of the fixing plate (1), and the upper portion of the rubber cone cylinders (2) is embedded in the fixing plate (1) to achieve a firm fixation of the two. A through hole (21) is vertically opened in the middle of the rubber cone cylinder (2), and a push plate (3) parallel to the fixed plate (1) is horizontally arranged at the bottom of the fixed plate (1), and the push plate (3) passes through the through hole (21) and horizontally penetrates the rubber cone cylinder (2); A plurality of vertical cylinders (4) are fixed at equal intervals on the surface of the fixed plate (1), a connecting rod (31) is vertically fixed on the surface of the push plate (3) at the vertical cylinder (4), the connecting rod (31) can be slidably inserted into the vertical cylinder (4), and a sliding block (32) that can be slidably placed in the vertical cylinder (4) is fixed at the end of the connecting rod (31), a permanent magnet (321) is embedded and fixed inside the sliding block (32), and an electromagnet (41) is embedded and fixed above the interior of the vertical cylinder (4).

2. A doffing gripping mechanism for a spinning frame according to claim 1, characterized in that: A mounting frame (11) is fixed to a surface of one side of the fixing plate (1) close to the vertical tube (4), and the mounting frame (11) is fixed to the surface of the fixing plate (1) at equal intervals.

3. A doffing gripping mechanism for a spinning frame according to claim 1, characterized in that: A through hole (12) communicating with the vertical cylinder (4) is provided on the surface of the fixing plate (1) at the connecting rod (31), and the connecting rod (31) passes through the through hole (12) into the vertical cylinder (4).

4. A doffing gripping mechanism for a spinning frame according to claim 1, characterized in that: The width of the through opening (21) is greater than the width of the push plate (3), and the push plate (3) passes through the middle position of the through opening (21).

5. A doffing gripping mechanism for a spinning frame according to claim 2, characterized in that: The mounting frame (11) is arranged in an L-shape, and a through hole is arranged on one side of the mounting frame (11) parallel to the fixing plate (1).

Images