Automatic thread trimming device of bobbin winder

Abstract

The utility model discloses an automatic thread trimming device of a bobbin winder, and relates to the technical field of bobbin winders, in particular to the automatic thread trimming device of the bobbin winder, which comprises a mounting frame, a thread trimming mechanism is arranged on the mounting frame and is used for automatically trimming yarns, and the thread trimming mechanism comprises a moving component, a thread trimming mechanism and a thread trimming mechanism, a sliding block is slidably mounted on the guide rail; the wire shifting assembly comprises a wire guide plate fixed at the top of the mounting frame and a wire guide groove formed in the wire guide plate; the output end of a servo motor drives a shifting rod to rotate anticlockwise, so that the shifting rod shifts the yarn on the upper portion into a yarn guide plate until the yarn is shifted into a yarn fixing groove through a yarn guide groove, and the yarn is located over a shearing assembly; therefore, when the yarn cannot be kept at the correct position due to small-amplitude deviation in the working process of the winding machine, the yarn can be smoothly shifted to the position over the shearing assembly through the yarn shifting assembly, and subsequent smooth yarn shearing can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to an automatic thread cutting device for winding machines. Background Art

[0002] Winding machine is a special equipment for textile industry. It is mainly used as the last process of spinning and the first process of weaving. It plays a "bridge" role between the upper and lower processes and occupies an important position in the textile field.

[0003] After checking the publication number: CN217298413U, an automatic thread trimming device for a winding machine is disclosed. This technology discloses "an automatic thread trimming device for a winding machine, including a mounting frame, a liftable thread support plate is arranged on one side of the mounting frame, a first driving device for controlling the lifting and lowering of the thread support plate is connected to the lower end of the thread support plate, a thread support groove for supporting the yarn is arranged on the top of the thread support plate, a scissors is arranged next to the thread support groove, the scissors are connected to a second driving device for controlling the opening and closing of the scissors, the scissors and the second driving device are both installed on the thread support plate, a rotatable thread dial rod is arranged on the mounting frame, the thread dial rod is rotated to dial the yarn to the top of the thread support groove, and the thread dial rod is connected to a third driving device for controlling the rotation of the thread dial rod" and other technical solutions, which have technical effects such as "the yarn can be automatically cut, thereby improving the work efficiency of yarn cutting and bobbin replacement";

[0004] The above scheme is to accurately move the yarn to the top of the yarn support groove by the yarn moving rod; however, if the yarn fails to maintain the correct position in the working process of the winding machine, for example, the yarn accidentally deviates from the preset transmission path, or is too close to the yarn moving rod due to accumulation, this may cause the yarn moving rod to encounter difficulties when trying to guide the yarn to the top of the yarn support groove; and the yarn tension control is also extremely critical. If the yarn tension is too high, it may cause too much resistance to the yarn moving rod, making it difficult to move smoothly; and if the tension is too low, the yarn may lose stability during the moving process, which also affects the effective operation of the yarn moving rod. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic thread cutting device for a winding machine, which has the characteristic that when the yarn is slightly offset in the working process of the winding machine and fails to maintain the correct position, the yarn can be smoothly moved to the top of the shearing component by the thread moving component, so that the thread can be smoothly cut subsequently.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an automatic thread trimming device for a winding machine, comprising a mounting frame, a thread trimming mechanism is arranged on the mounting frame and is used to automatically trim the yarn, and the thread trimming mechanism comprises:

[0007] The moving assembly includes a guide rail fixed on the front surface of the mounting frame, and a slider is slidably mounted on the guide rail;

[0008] The wire-pulling assembly includes a wire plate fixed on the top of the mounting frame, a wire groove opened inside the wire plate, a fixed wire groove opened on the left side of the wire groove, a servo motor installed on the upper end of the front surface of the mounting frame, and a lever installed on the output end of the servo motor;

[0009] The shearing assembly includes a housing mounted on the left end of the slide.

[0010] Preferably, the wire routing assembly further comprises inclined surfaces provided on both sides of the right end of the wire groove, and the inclined surfaces on both sides are symmetrical to each other.

[0011] Preferably, the wire shifting assembly further comprises a hook fixed to the end of the shifting rod.

[0012] Preferably, the shearing assembly also includes a first blade hinged on the upper end of the shell, a second blade hinged on the first blade, an inclined block slidably installed at the lower end of the shell, a standard cylinder installed at the bottom of the shell, and the output end of the standard cylinder is connected to the inclined block.

[0013] Preferably, the shearing assembly further comprises a spring installed between the lower end of the first blade and the lower end of the second blade.

[0014] Preferably, the moving assembly further comprises a double-rod cylinder mounted at the lower end of the mounting frame, and the output end of the double-rod cylinder is connected to the bottom of the slider.

[0015] Beneficial Effects

[0016] The utility model provides an automatic thread cutting device for a winding machine. Compared with the prior art, it has the following advantages:

[0017] Beneficial effects:

[0018] (1) The output end of the servo motor drives the lever to rotate counterclockwise, so that the lever moves the yarn above to the wire guide plate until the yarn passes through the wire guide groove and is moved to the fixed wire groove, and the yarn is directly above the cutting component; when the yarn is slightly offset in the working process of the winding machine and fails to maintain the correct position, it can also be smoothly moved to the top of the cutting component through the wire guide component, so that the thread can be smoothly cut later.

[0019] (2) The output end of the standard cylinder drives the inclined block to move upward, and the inclined block pushes the second blade to rotate, so that the second blade cooperates with the first blade to cut the yarn between them; and when the output end of the standard cylinder drives the inclined block to move downward, at the same time, the pressure of the spring rebound pushes the first blade and the second blade to open and reset, thereby realizing automatic thread cutting of the yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the back three-dimensional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the conductor plate in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure inside the shearing component of the utility model.

[0024] In the figure: 1. mounting frame; 2. thread trimming mechanism; 21. moving assembly; 211. guide rail; 212. slider; 213. double-rod cylinder; 22. wire shifting assembly; 221. wire guide plate; 222. wire guide groove; 223. wire fixing groove; 224. inclined plane; 225. servo motor; 226. shifting rod; 227. hook; 23. shearing assembly; 231. housing; 232. first blade; 233. second blade; 234. inclined block; 235. standard cylinder; 236. spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution for an automatic thread trimming device for a winding machine: an automatic thread trimming device for a winding machine, comprising a mounting frame 1, a thread trimming mechanism 2 is arranged on the mounting frame 1 and is used for automatically trimming the yarn, and the thread trimming mechanism 2 comprises:

[0027] The moving assembly 21 comprises a guide rail 211 fixed on the front surface of the mounting frame 1, and a slider 212 is slidably mounted on the guide rail 211;

[0028] The wire-pulling assembly 22 includes a wire plate 221 fixed on the top of the mounting frame 1, a wire groove 222 provided inside the wire plate 221, and a wire groove 223 provided on the left side of the wire groove 222, a servo motor 225 installed on the upper end of the front surface of the mounting frame 1, and a lever 226 installed on the output end of the servo motor 225;

[0029] The shearing assembly 23 includes a housing 231 mounted on the left end of the slider 212 .

[0030] In this embodiment, the output end of the servo motor 225 drives the lever 226 to rotate counterclockwise, so that the lever 226 moves the yarn above to the wire guide plate 221, until the yarn passes through the wire groove 222 and is moved into the fixed line groove 223, and the yarn is directly above the cutting component 23; when the yarn is slightly offset in the working process of the winding machine and fails to maintain the correct position, it can also be smoothly moved to the top of the cutting component 23 through the wire moving component 22, so that the thread can be cut smoothly later.

[0031] Specifically, the wire-placing assembly 22 further includes inclined surfaces 224 formed on both sides of the right end of the wire groove 222 , and the inclined surfaces 224 on both sides are symmetrical to each other.

[0032] In this embodiment, the inclined surface 224 makes it easier for the yarn to enter the guide groove 222 .

[0033] Specifically, the wire shifting assembly 22 further includes a hook 227 fixed at the end of the shifting rod 226 .

[0034] In this embodiment, when the shifting rod 226 shifts the yarn during its rotation, the hook 227 can prevent the yarn from being separated from the shifting rod 226 .

[0035] Specifically, the shearing assembly 23 also includes a first blade 232 hinged at the upper end of the shell 231, a second blade 233 hinged on the first blade 232, an inclined block 234 slidably installed at the lower end of the shell 231, and a standard cylinder 235 installed at the bottom of the shell 231, and the output end of the standard cylinder 235 is connected to the inclined block 234.

[0036] In this embodiment, the output end of the standard cylinder 235 drives the inclined block 234 to move upward, and the inclined block 234 pushes the second blade 233 to rotate, so that the second blade 233 cooperates with the first blade 232 to cut the yarn between them.

[0037] Specifically, the shearing assembly 23 further includes a spring 236 installed between the lower end of the first blade 232 and the lower end of the second blade 233 .

[0038] In this embodiment, when the output end of the standard cylinder 235 drives the inclined block 234 to move downward, at the same time, the rebound pressure of the spring 236 pushes the first blade 232 and the second blade 233 to open and reset.

[0039] Specifically, the moving assembly 21 further includes a double-rod cylinder 213 installed at the lower end of the mounting frame 1 , and the output end of the double-rod cylinder 213 is connected to the bottom of the slider 212 .

[0040] In this embodiment, when the thread is trimmed, the shearing assembly 23 on the slider 212 is driven to rise by the output end of the double-rod cylinder 213, and then lowered and reset after the thread is trimmed.

[0041] The working principle and use process of the utility model are as follows: first, when the yarn cutting work is required, the output end of the servo motor 225 drives the lever 226 to rotate counterclockwise, so that the lever 226 moves the upper yarn to the guide plate 221, until the yarn passes through the guide groove 222 and moves to the fixed line groove 223, and the yarn is directly above the cutting assembly 23;

[0042] Then, the output end of the double-rod cylinder 213 drives the shearing assembly 23 on the slider 212 to rise, so that the yarn is located between the first blade 232 and the second blade 233;

[0043] Finally, the output end of the standard cylinder 235 drives the inclined block 234 to move upward, and the inclined block 234 pushes the second blade 233 to rotate, so that the second blade 233 cooperates with the first blade 232 to cut the yarn between them.

[0044] The model of the cylinder is: DSNU-20-50-PPV-A. As it adopts the existing mature technology products, it will not be elaborated in detail here. And the electrical components appearing in this article are all connected to the external main controller and 220V AC power.

[0045] 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", "comprises" or any other variations 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.

[0046] 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. An automatic thread trimming device for a winding machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a thread trimming mechanism (2) for automatically trimming the yarn, and the thread trimming mechanism (2) comprises: A moving assembly (21) comprises a guide rail (211) fixed on the front surface of the mounting frame (1), and a slider (212) is slidably mounted on the guide rail (211); The wire-pulling assembly (22) comprises a wire plate (221) fixed on the top of the mounting frame (1), a wire groove (222) provided inside the wire plate (221), a wire groove (223) provided on the left side of the wire groove (222), a servo motor (225) installed on the upper end of the front surface of the mounting frame (1), and a lever (226) installed at the output end of the servo motor (225); The shearing assembly (23) includes a housing (231) mounted on the left end of the slider (212).

2. The automatic thread trimming device for a winding machine according to claim 1, characterized in that: The wire-placing assembly (22) further comprises inclined surfaces (224) provided on both sides of the right end of the wire groove (222), and the inclined surfaces (224) on both sides are symmetrical to each other.

3. The automatic thread trimming device for a winding machine according to claim 1, characterized in that: The wire-shifting assembly (22) further comprises a hook (227) fixed at the end of the shifting rod (226).

4. The automatic thread trimming device for a winding machine according to claim 1, characterized in that: The shearing assembly (23) further comprises a first blade (232) hingedly connected to the upper end of the shell (231), a second blade (233) hingedly connected to the first blade (232), an inclined block (234) slidably mounted at the lower end of the shell (231), and a standard cylinder (235) mounted at the bottom of the shell (231), wherein the output end of the standard cylinder (235) is connected to the inclined block (234).

5. The automatic thread trimming device for a winding machine according to claim 4, characterized in that: The shearing assembly (23) further comprises a spring (236) installed between the lower end of the first blade (232) and the lower end of the second blade (233).

6. The automatic thread trimming device for a winding machine according to claim 1, characterized in that: The moving assembly (21) further comprises a double-rod cylinder (213) mounted at the lower end of the mounting frame (1), and the output end of the double-rod cylinder (213) is connected to the bottom of the sliding block (212).

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