Automatic shearing device for yarn production

Abstract

The utility model relates to the technical field of textile machinery, and discloses an automatic shearing device for yarn production. Comprising a scissor driving air cylinder, a left yarn guide plate, a left fixing block for fixing the left yarn guide plate to one side of the driving end of the scissor driving air cylinder, a yarn shearing device installed on the side, close to the scissor driving air cylinder, of the left yarn guide plate, and a shearing connecting rod installed at the driving end of the scissor driving air cylinder. The yarn shearing device is controlled to work through the scissors driving air cylinder, control is conducted in an air control mode, response is sensitive, and shearing is accurate. In the yarn shearing device, a scissor sleeve column and a blade pressure spring are matched for use, so that cutting edges of a fixed cutter and a movable cutter can be kept meshed, and the yarn is effectively sheared; when the yarn is within the range of the cutting edge of the scissors, the yarn can be sheared stably at a high speed by controlling the fixed cutter and the movable cutter, and automatic control over the yarn shearing action of spinning equipment according to various process requirements is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to an automatic shearing device for yarn production. Background Art

[0002] In the textile industry, yarn is the basis for producing cloth and other textiles. The quality of yarn is directly related to the quality and production efficiency of the final product. In the process of yarn formation, various process occasions require the action of cutting the yarn. Most of the existing yarn scissors rely on manual control to cut the yarn, and their degree of automation is low. Although there are many ways to achieve automatic cutting on the market, such as using cams to control the movement of scissors, that is, when the cam is controlled to rotate to a certain angle, one edge of the scissors moves closer to the other edge, thereby cutting the yarn, but this method The mechanism occupies a large space, the overall volume of the machine cannot be effectively reduced, and its structure is complicated. Another example is the use of an impact-type cutting knife, which has a simple structure, but the shearing force is weak and easy to blunt, and the scope of use is small. Utility Model Content

[0003] The technical problem solved by the utility model is to provide an automatic shearing device for yarn production which is convenient and flexible, has a compact structure, is automatically controlled and has safety protection.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a shearing device for yarn production, characterized in that it comprises a scissor-driven cylinder, a left yarn guide plate, a left fixed block for fixing the left yarn guide plate on one side of the driving end of the scissor-driven cylinder, a yarn cutting device installed on the side of the left yarn guide plate close to the scissor-driven cylinder, and a shearing connecting rod installed on the driving end of the scissor-driven cylinder; the yarn cutting device comprises a fixed knife, a movable knife, a blade pressure spring and a blade screw fixed to the left yarn guide plate by screws, the blade screw is fixed to the left yarn guide plate after passing through the blade pressure spring, the movable knife and the fixed knife in sequence; the fixed knife is also connected to the left yarn guide plate by the blade fixing screw, and the end of the movable knife close to the scissor-driven cylinder is rotatably connected to the shearing connecting rod.

[0005] Furthermore, a limiting opening is provided at the root of the scissors of the fixed knife, and the fixed knife is limited by a blade fixing screw connected to the left yarn guide plate.

[0006] Furthermore, the yarn cutting device also includes a scissors sleeve column, the blade screw passes through the scissors sleeve column, the movable knife, the fixed knife and is connected to the yarn left guide plate in sequence, and the blade pressure spring is sleeved on the scissors sleeve column and located between the movable knife and the nut of the blade screw.

[0007] Furthermore, the left yarn guide plate is provided with a yarn guide opening; when the yarn cutting device is ready to work, the fixed knife and the movable knife are respectively located on both sides of the yarn guide opening.

[0008] Furthermore, a wear-resistant opening magnetic eye is installed near the blade screw at the yarn introduction port.

[0009] Furthermore, the material of the wear-resistant open magnetic eye is alumina ceramic.

[0010] Furthermore, it also includes a wire guide protection plate, which is parallel to the left yarn guide plate and fixed to the other side of the driving end of the scissors driving cylinder through a right fixing block; the driving end of the scissors driving cylinder is located between the wire guide protection plate and the left yarn guide plate.

[0011] Furthermore, the lead-in protection plate and the left lead-in plate are provided with yarn lead-in openings corresponding to each other, and the yarn lead-in openings are provided with wear-resistant opening magnetic eyes.

[0012] The beneficial effects of the utility model are as follows: the utility model controls the yarn cutting device to work by driving the cylinder through the solenoid valve, and controls it by air control, so it is sensitive to response and precise in cutting. In the yarn cutting device, the scissors sleeve column and the blade pressure spring are used together to keep the cutting edges of the fixed knife and the movable knife engaged to effectively cut the yarn; as long as the yarn is within the range of the scissors cutting edge, the fixed knife and the movable knife can be controlled by the pneumatic solenoid valve to cut the yarn at high speed and stably, so that the spinning equipment can realize the automatic control of the yarn cutting action according to various process requirements. By installing wear-resistant open magnetic eyes, the yarn left guide plate and the yarn guide port in the guide protection plate can be protected to ensure the service life. The yarn guide protection plate can be provided to protect the yarn cutting device, ensuring the safety performance of the shearing device used in yarn production.

[0013] The invention has the advantages of small size, independent structure, simple automatic control and convenient installation on various textile equipments requiring automatic control of yarn shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the scissors driving cylinder and the shear connecting rod of the utility model;

[0016] Figure 3 It is a schematic diagram of the yarn cutting device of the utility model;

[0017] Figure 4 It is a schematic diagram of the lead protection plate of the utility model;

[0018] The markings in the figure are: 11, scissors driving cylinder; 12, driving end; 13, shear connecting rod; 14, left fixed block; 151, yarn left guide plate; 152, wear-resistant open magnetic eye; 16, guide wire protection plate; 21, movable knife; 22, fixed knife; 23, blade screw; 24, scissors sleeve column; 25, blade pressure spring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figures 1 to 4 The shearing device for yarn production shown in the figure comprises a scissor-driven cylinder 11, a left yarn guide plate 151, a left fixing block 14 fixing the left yarn guide plate 151 to one side of the driving end 12 of the scissor-driven cylinder 11, a yarn cutting device installed on the side of the left yarn guide plate 151 close to the scissor-driven cylinder 11, and a shearing connecting rod 13 installed on the driving end 12 of the scissor-driven cylinder 11. The left yarn guide plate 151 is fixed to the left fixing block 14 by two screws, and the left fixing block 14 is fixed to one side of the driving end 12 of the scissor-driven cylinder 11 by screws, and the opening and closing of the yarn cutting device is controlled by the shearing connecting rod 13 installed at the driving end 12 of the scissor cylinder and the yarn cutting device.

[0021] The yarn cutting device includes a fixed knife 22, a movable knife 21, a blade pressure spring 25 and a blade screw 23 fixed to the left yarn guide plate 151 by screws; the blade screw 23 is fixed to the left yarn guide plate 151 after passing through the blade pressure spring 25, the movable knife 21 and the fixed knife 22 in sequence. In order to facilitate disassembly, the blade screw 23 is threadedly connected to the left yarn guide plate 151. The fixed knife 22 is also connected to the left yarn guide plate 151 by the blade fixing screw. By setting a limiting opening at the root of the fixed knife 22, the fixed knife 22 is limited by the blade fixing screw threadedly connected to the left yarn guide plate 151; or by setting a threaded hole at the root of the fixed knife 22, the fixed knife 22 is fixed by the blade fixing screw. One end of the movable knife 21 close to the scissors driving cylinder 11 is rotatably connected to the shear connecting rod 13, and the movable operation is controlled by the scissors driving cylinder 11; specifically, when the driving end 12 of the scissors driving cylinder 11 is extended, the movable knife 21 and the fixed knife 22 are in an open state; when the driving end 12 of the scissors driving cylinder 11 is retracted, the movable knife 21 and the fixed knife 22 are in a closed state; when the scissors driving cylinder 11 receives a shearing signal, the driving end 12 of the scissors driving cylinder 11 is retracted and extended to complete the cutting of the yarn and open the door for standby.

[0022] On the basis of the above, if Figure 1 and Figure 3As shown, the yarn cutting device also includes a scissor sleeve column 24, a blade screw 23 passes through the scissor sleeve column 24, a movable knife 21, and a fixed knife 22 in sequence and is connected to the yarn left guide plate 151, and a blade pressure spring 25 is sleeved on the scissor sleeve column 24 and is located between the movable knife 21 and the nut of the blade screw 23. The free height of the blade pressure spring 25 is greater than the height of the scissor sleeve column 24, and the height range of the scissor sleeve column 24 is one-half to two-thirds of the free height of the blade pressure spring 25. A sleeve column groove is provided on the side where the movable knife 21 is placed on the scissor sleeve column 24, which limits the scissor sleeve column 24 and can ensure that the spring will not twist during rapid shearing, thereby ensuring the efficiency of shearing.

[0023] On the basis of the above, if Figure 1 As shown, the yarn left lead plate 151 is provided with a yarn lead-in opening; when the yarn cutting device is ready to work, the fixed knife 22 and the movable knife 21 are respectively located on both sides of the yarn lead-in opening. The blade of the fixed knife 22 is tangent to the yarn lead-in opening, which can facilitate the movable knife 21 to quickly cut the yarn.

[0024] On the basis of the above, if Figure 1 As shown, during the high-speed operation of the yarn, the yarn left guide plate 151 will be worn, and a wear-resistant opening magnetic eye 152 is installed at the yarn guide port near the blade screw 23 to protect the yarn left guide plate 151. The material of the wear-resistant opening magnetic eye 152 is alumina ceramic.

[0025] On the basis of the above, if Figure 1 and Figure 4 As shown, the shearing device for yarn production also includes a wire guide guard plate 16, which is parallel to the left yarn guide plate 151 and fixed to the other side of the driving end 12 of the scissor drive cylinder 11 through a right fixing block; the driving end 12 of the scissor drive cylinder 11 is located between the wire guide guard plate 16 and the left yarn guide plate 151. The wire guide guard plate 16 is provided with a yarn guide opening corresponding to the yarn guide opening of the left guide plate, and the yarn guide opening is equipped with a wear-resistant opening magnetic eye 152. The wire guide guard plate 16 includes a yarn guide portion and a fixing portion, and the yarn guide opening is arranged in the yarn guide portion; a plurality of support columns are arranged between the fixing portion of the wire guide guard plate 16 and the left yarn guide plate 151, and the support columns are connected to the wire guide guard plate 16 and the left yarn guide plate 151 by screws. A through hole is provided at the corresponding position of the wire guide guard plate 16 and the blade screw 23, and the diameter of the through hole is larger than the diameter of the nut of the blade screw 23, which is convenient for installation and disassembly.

[0026] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are 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. An automatic shearing device for yarn production, characterized in that: The invention comprises a scissor-driven cylinder, a left yarn guide plate, a left fixed block for fixing the left yarn guide plate on one side of the driving end of the scissor-driven cylinder, a yarn cutting device installed on the side of the left yarn guide plate close to the scissor-driven cylinder, and a shearing connecting rod installed on the driving end of the scissor-driven cylinder; the yarn cutting device comprises a fixed knife, a movable knife, a blade pressure spring and a blade screw fixed on the left yarn guide plate by screws, the blade screw is fixed to the left yarn guide plate after passing through the blade pressure spring, the movable knife and the fixed knife in sequence; the fixed knife is also connected to the left yarn guide plate by the blade fixing screw, and the end of the movable knife close to the scissor-driven cylinder is rotatably connected to the shearing connecting rod.

2. An automatic shearing device for yarn production according to claim 1, characterized in that: A limiting opening is arranged at the scissor root of the fixed knife, and the fixed knife is limited by a blade fixing screw connected to the left yarn guide plate.

3. An automatic shearing device for yarn production according to claim 1, characterized in that: The yarn cutting device also includes a scissors sleeve column, the blade screw passes through the scissors sleeve column, the movable knife, the fixed knife and is connected to the yarn left guide plate in sequence, and the blade pressure spring is sleeved on the scissors sleeve column and located between the movable knife and the nut of the blade screw.

4. An automatic shearing device for yarn production according to claim 1, characterized in that: The left yarn guide plate is provided with a yarn guide opening; when the yarn cutting device is ready to work, the fixed knife and the movable knife are respectively located on both sides of the yarn guide opening.

5. An automatic shearing device for yarn production as claimed in claim 4, characterized in that: The yarn introduction port is provided with a wear-resistant opening magnetic eye near the blade screw.

6. An automatic shearing device for yarn production as claimed in claim 5, characterized in that: The material of the wear-resistant open magnetic eye is alumina ceramic.

7. An automatic shearing device for yarn production according to any one of claims 4 to 6, characterized in that: It also includes a wire guide protection plate, which is parallel to the left yarn guide plate and is fixed on the other side of the driving end of the scissors driving cylinder through a right fixing block.

8. An automatic shearing device for yarn production according to claim 7, characterized in that: The lead-in protection plate and the lead-in opening of the left lead-in plate are provided with a yarn lead-in opening corresponding to each other, and the yarn lead-in opening is equipped with a wear-resistant opening magnetic eye.

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