A tube grabbing and yarn pushing tube feeding mechanism

Abstract

The present invention relates to a tube-grabbing and yarn-pushing feeding mechanism, which comprises a rotating shaft, a tube-feeding driving mechanism connected to the rotating shaft, a tube-grabbing mechanism connected to a driving end of the tube-feeding driving mechanism, and a yarn-pushing plate connected to the driving end of the tube-feeding driving mechanism. The yarn-pushing plate is provided with an arc-shaped guide groove, which is sleeved on the rotating shaft. The tube-grabbing mechanism comprises a fixed plate connected to the driving end of the tube-feeding driving mechanism and a movable plate hinged on the fixed plate. The rotation of the movable plate is driven by a tube-grabbing driving member. The movable plate and the fixed plate have two states: open and closed. In the open state, the opening between the fixed plate and the movable plate faces away from the yarn-pushing plate. In the closed state, a cavity for accommodating a tube is defined between the fixed plate and the movable plate. The tube-grabbing and tube-feeding mechanism cooperates with a doffing vehicle to automatically grasp and feed the tube, and the yarn-pushing plate is more durable.

Description

Technical Field

[0001] The invention belongs to the field of textile machinery and relates to a tube grabbing and yarn pushing and feeding mechanism in an automatic doffing vehicle. Background Art

[0002] In the air-jet spinning operation, the yarn is wound on the yarn bobbin. After the yarn of a predetermined length or weight is wound on the yarn bobbin, the yarn bobbin needs to be pushed away from the work station, that is, the yarn is dropped, and an empty yarn tube is replaced at the original work station. This requires a tube grabbing and yarn pushing and feeding mechanism that can complete the tube grabbing, yarn pushing, and tube feeding actions.

[0003] Chinese patent document "CN111826758A" discloses such a tube grabbing mechanism, but it is suitable for the situation where the empty yarn tube is below the tube grabbing mechanism, and is not suitable for the situation behind the tube grabbing mechanism. In addition, the yarn pushing plate is easily damaged because it needs to withstand a large force when pushing a full yarn roll. Summary of the Invention

[0004] The purpose of the present invention is to provide a tube grabbing and yarn pushing and feeding mechanism, which solves the problem of how to cooperate with a doffing vehicle to automatically grab and feed the tube and make the yarn pushing plate more durable.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The present invention provides a tube-grabbing and yarn-pushing feeding mechanism, which includes a rotating shaft, a tube-feeding driving mechanism connected to the rotating shaft, a tube-grabbing mechanism connected to a driving end of the tube-feeding driving mechanism, and a yarn-pushing plate connected to the driving end of the tube-feeding driving mechanism, wherein the yarn-pushing plate is provided with an arc-shaped guide groove, and the guide groove is sleeved on the rotating shaft, the tube-grabbing mechanism includes a fixed plate connected to the driving end of the tube-feeding driving mechanism and a movable plate hinged on the fixed plate, the rotation of the movable plate is driven by a tube-grabbing driving member, and the movable plate and the fixed plate have two states, open and closed. In the open state, the opening between the fixed plate and the movable plate faces away from the yarn-pushing plate, and in the closed state, a cavity for accommodating the yarn tube is defined between the fixed plate and the movable plate.

[0007] Preferably, the front end of the yarn pushing plate has a set width so as to fully contact the yarn roll and push the yarn roll out smoothly.

[0008] Preferably, the edge of the yarn pushing plate is bent to one side to improve strength.

[0009] Preferably, the tube feeding drive mechanism is connected to the rotating shaft via a clamping block and a fixing plate, the clamping block clamps the rotating shaft, the clamping block is connected to the fixing plate, and the tube feeding drive mechanism is connected to the fixing plate.

[0010] Preferably, a support plate is provided at one end of the rotating shaft, the support plate is connected to the rotating shaft via a bearing, a rotating motor is provided on the support plate, and the rotating motor transmits power to the rotating shaft to cause the rotating shaft to rotate.

[0011] Furthermore, the rotating motor is located on a side of the supporting plate close to the pipe grasping mechanism, and a belt is used to transmit power to the rotating motor and the rotating shaft.

[0012] Preferably, a matching guide structure between convex strips and grooves is provided between the rotating shaft and the guide groove, a circle of convex strips or grooves is provided on the outer periphery of the rotating shaft, and corresponding grooves or convex strips are provided on the inner edge of the guide groove.

[0013] Preferably, the fixed piece is in the shape of a flat plate, and the movable piece has an arc-shaped structure with a self-centering function.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] The present invention's tube-grabbing and feeding mechanism features a yarn pusher plate mounted on a rotating shaft. The plate rotates as the shaft rotates, and the plate is sleeved onto the shaft via a guide groove, allowing it to withstand significant external forces. Furthermore, the curved guide grooves cooperate with the shaft, allowing the plate to swing slightly as the shaft rotates, making it easier to move the yarn roll. Furthermore, because the opening between the fixed and movable plates in the tube-grabbing mechanism faces away from the plate, it can grasp empty bobbins from the side. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0017] Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of the present invention;

[0018] Figure 2 yes Figure 1 Another view of

[0019] Figure 3 yes Figure 1 Side view of

[0020] Figure 4 It is a schematic diagram of yarn pushing and tube feeding;

[0021] The description of the accompanying drawings is as follows:

[0022] 1. Rotating shaft; 2. Tube feeding drive mechanism; 3. Tube grabbing mechanism; 31. Fixed plate; 32. Movable plate; 33. Tube grabbing drive member; 4. Yarn pushing plate; 41. Guide groove; 42. Bending edge; 5. Clamping block; 6. Fixed plate; 7. Support plate; 8. Rotating motor; 9. Belt; 10. Raised strip; 11. Groove; 12. Yarn tube; 13. Yarn roll. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] like Figure 1 and Figure 2 The tube-grabbing and feeding mechanism shown in the figure mainly comprises a rotating shaft 1, a feeding tube driving mechanism 2 connected to the rotating shaft 1, a tube-grabbing mechanism 3 connected to the driving end of the feeding tube driving mechanism 2, and a yarn-pushing plate 4 connected to the driving end of the feeding tube driving mechanism 2. The yarn-pushing plate 4 is used to push the yarn roll 13 wound with a predetermined length or a predetermined weight of yarn away from the yarn winding station (see Figure 4 , by the swing of the yarn pushing plate 4) (see Figure 4 ), the tube feeding drive mechanism 2 is used to drive the tube grabbing mechanism 3 (connected to the driving end of the tube feeding drive mechanism 2) to grab the empty tube 15 and release the empty tube to the work station pushed away in front (through swinging around the rotating shaft 1, extension and contraction of the tube feeding drive mechanism 2 and clamping and releasing of the tube grabbing mechanism 3).

[0027] The tube grasping mechanism 3 includes a fixed plate 31 and a movable plate 32. The fixed plate 31 is connected to the driving end of the tube feeding drive mechanism 2, and the movable plate 32 is hinged to the fixed plate 31. Figure 3The tube-grabbing drive 33 shown is driven. In this example, the tube-grabbing drive 33 is a pneumatic cylinder. The tube-feeding drive mechanism 2 is also a pneumatic cylinder. The movable plate 32 and the fixed plate 31 have two states: open and closed. In the open state, the opening between the fixed plate 31 and the movable plate 32 faces away from the yarn pusher 4, allowing the bobbin to be received or released laterally from the yarn pusher 4. In the closed state, the fixed plate 31 and the movable plate 32 define a cavity for accommodating the bobbin, preventing the bobbin from slipping out of the cavity.

[0028] In this example, the fixed plate 31 is flat, while the movable plate 32 has a self-centering curved structure. Since the fixed plate 31 is flat and does not rotate, it can be easily inserted into a tube magazine (not shown) for initial positioning, allowing the movable plate 32 to grip the bobbins within. The curved structure of the movable plate 32 aligns with the bobbins, allowing for precise positioning and accurate loading of the bobbins to the winding station.

[0029] In this example, the shaft 1 passes through Figure 1 The clamping block 5 shown is fixed with a fixing plate 6. The clamping block 5 clamps the rotating shaft 1. The fixing plate 6 is mounted on the tube feeding drive mechanism 2. The driving end of the tube feeding drive mechanism 2 is connected to the tube grasping mechanism 3. The fixing plate 6 can swing as the rotating shaft 1 rotates.

[0030] Guide grooves 41 are provided on both sides of the yarn pushing plate 4. The guide grooves 41 are arc-shaped and are sleeved on the rotating shaft 1. The guide grooves 41 in this example are formed by an annular body connected to the side edge of the yarn pushing plate 4. The yarn pushing plate 4 is also connected to the driving end of the feeding tube driving mechanism 2. When the feeding tube driving mechanism 2 drives the tube grasping mechanism 3 to move downward, the yarn pushing plate 4 will also move downward, and due to the arc-shaped guide grooves 41 on the yarn pushing plate 4, the yarn pushing plate 4 has a slight swing relative to the rotating shaft 1 when it moves downward, so that the yarn pushing plate 4 can more smoothly contact the bottom of the yarn roll with a predetermined length or weight to be dialed (see Figure 4 The distance between the yarn pushing plate 4 and the driving end of the feeding tube driving mechanism 2 can be changed (for example, a retractable rod set is connected between the driving end of the feeding tube driving mechanism 2 and the yarn pushing plate 4), thereby allowing the yarn pushing plate 4 to swing due to the arc-shaped guide groove 41.

[0031] Since the yarn pushing plate 4 is hung on the rotating shaft 1 , the yarn pushing plate 4 is not easily damaged when subjected to a large force, and is not easily separated from the rotating shaft 1 .

[0032] In this example, the edge of the yarn pushing plate 4 is bent to one side to increase the strength. Figure 2 4. The height of the bent edge 42 can be regarded as the thickness of the yarn pusher plate 4. Figure 2The height of the bent edge 42 at the lower end is relatively small, that is, the front end of the yarn pushing plate 4 has a certain width and rigidity, so as to facilitate the smooth pushing out of the yarn roll 13 wound with the yarn (see Figure 4 ).

[0033] like Figure 1 A support plate 7 is provided at one end of the rotating shaft 1. The support plate 7 is connected to the rotating shaft 1 via a bearing. A rotary motor 8 is also mounted on the support plate 7, transmitting power to the rotating shaft 1, causing it to rotate. A belt 9 drives the motor 8 and the rotating shaft 1. The motor 8 and the rotating shaft 1 are located on the same side of the support plate 7, closer to the pipe gripping mechanism 3, to minimize size.

[0034] like Figure 1 , a matching guide structure consisting of a ridge 10 and a corresponding groove 11 is provided between the rotating shaft 1 and the guide groove 41. In this example, the ridge 10 is provided on the outer periphery of the rotating shaft 1, connected to a sleeve, and located on the outer periphery of the sleeve. The groove 11 is opened in the inner edge of the guide groove 41, or called the inner side wall. And the cooperation of a circle of ridges 10 and the grooves 11 can also allow the yarn pushing plate 4 to rotate relative to the rotating shaft 1. The ridge 10 and the corresponding groove 11 cooperate so that the yarn pushing plate 4 is not easy to slide in the axial direction of the rotating shaft 1. In other embodiments, the ridge 10 can also be provided on the yarn pushing plate 4, and the groove 11 can be provided on the corresponding sleeve on the rotating shaft 1.

[0035] In summary, the tube-grabbing and feeding mechanism of this embodiment has a yarn-pushing plate 4 mounted on the rotating shaft 1 and supported by the rotating shaft 1, thereby enabling the yarn-pushing plate 4 to withstand large external forces without being easily damaged, and also to be difficult to separate from the rotating shaft 1. Furthermore, the opening between the fixed plate 31 and the movable plate 32 in the tube-grabbing mechanism 3 faces away from the yarn-pushing plate 4, thereby enabling the grabbing of empty bobbins from the side.

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tube grasping and yarn pushing tube feeding mechanism, characterized in that: The invention relates to a yarn pushing plate (4) connected to the driving end of the feeding tube drive mechanism (2), wherein the yarn pushing plate (4) is provided with an arc-shaped extending guide groove (41), and the guide groove (41) is sleeved on the rotating shaft (1). The yarn pushing plate (4) comprises a fixed plate (31) connected to the driving end of the feeding tube drive mechanism (2) and a movable plate (32) hinged on the fixed plate (31). The rotation of the movable plate (32) is driven by a tube grabbing driving member (33). The movable plate (32) and the fixed plate (31) have two states: open and closed. In the open state, the opening between the fixed plate (31) and the movable plate (32) faces away from the yarn pushing plate (4). In the closed state, a cavity for accommodating a yarn tube is defined between the fixed plate (31) and the movable plate (32).

2. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: The front end of the yarn pushing plate (4) has a set width so as to fully contact the yarn roll and push the yarn roll out smoothly.

3. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: The edge of the yarn pushing plate (4) is bent to one side to increase the strength.

4. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: The feeding tube drive mechanism (2) is connected to the rotating shaft (1) via a clamping block (5) and a fixing plate (6); the clamping block (5) clamps the rotating shaft (1); the clamping block (5) is connected to the fixing plate (6); and the feeding tube drive mechanism (2) is connected to the fixing plate (6).

5. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: A support plate (10) is provided at one end of the rotating shaft (1), the support plate (10) and the rotating shaft (1) are connected via a bearing, a rotating motor (11) is provided on the support plate (10), and the rotating motor (11) transmits power to the rotating shaft (1) so that the rotating shaft (1) rotates.

6. The tube grabbing and yarn pushing and feeding mechanism according to claim 5, characterized in that: The rotating motor (11) is located on a side of the support plate (10) close to the pipe grasping mechanism (3), and the rotating motor (11) and the rotating shaft (1) are driven by a belt (12).

7. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: A matching guide structure between a convex strip (13) and a concave groove (14) is provided between the rotating shaft (1) and the guide groove (41); a circle of convex strips (13) or concave grooves (14) is provided on the outer periphery of the rotating shaft (1); and corresponding concave grooves (14) or convex strips (13) are provided on the inner edge of the guide groove (41).

8. The tube grabbing and yarn pushing and feeding mechanism according to claim 1, characterized in that: The fixed plate (31) is in the shape of a flat plate, and the movable plate (32) has an arc-shaped structure.

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