Automatic glass fiber yarn breaking mechanism

Abstract

The utility model belongs to the technical field of glass fiber production equipment, and particularly relates to an automatic glass fiber yarn breaking mechanism. The yarn breaking device comprises a yarn breaking knife roll, a yarn breaking blade, a knife roll driving assembly, a yarn breaking rubber roll and a yarn breaking actuator. The yarn breaking blade is arranged on the yarn breaking knife roll, and the yarn breaking knife roll can rotate under the action of the knife roll driving assembly; the yarn breaking rubber roller is used for pressing yarns needing to be cut off to the yarn breaking knife roller, and the yarn breaking actuator is used for driving the yarn breaking rubber roller. According to the automatic glass fiber yarn breaking mechanism, through downward action of the yarn breaking rubber roller, a yarn roll connecting line can be pressed and conveyed to the yarn breaking knife roller, and then the yarn breaking knife roller drives the yarn breaking blade to rotate to cut off the yarn roll connecting line. Due to the fact that the yarn breaking actuator and the knife roll driving assembly can be regulated and controlled through the control system, the automatic yarn breaking mechanism for the glass fiber yarn can achieve automatic yarn breaking.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of glass fiber production equipment, and particularly relates to an automatic yarn cutting mechanism for glass fiber yarn. BACKGROUND

[0002] The yarn connecting line in the application refers to the glass fiber yarn formed between the yarn groups in the production process of the drawing machine. Before the subsequent treatment such as drying and heat treatment, the yarn connecting line needs to be cut off to avoid the influence on the subsequent operation caused by the mutual connection between the yarn groups. The existing yarn cutting methods include manual, semi-automatic and automatic methods. Manual and semi-automatic yarn cutting are applied to production lines with low automation requirements, and automatic yarn cutting is the development direction of the industry.

[0003] The application is an automatic yarn cutting device in the crawler-type yarn unloading manipulator and yarn unloading process (publication number: CN118288267B) capable of automatically cutting the yarn connecting line of the same applicant on the same day. Therefore, the technical content of the patent (publication number: CN118288267B) is cited as part of the application. CONTENT OF THE UTILITY MODEL

[0004] The innovative idea of the application is that a plurality of yarn groups are generally placed side by side on the yarn supporting disc before entering the subsequent operation. A yarn cutting knife roller with a blade and capable of rotating is arranged below the yarn connecting line, and a yarn cutting rubber roller capable of moving up and down is arranged above the yarn connecting line. During yarn cutting, the yarn connecting line is pushed and compressed to the yarn cutting knife roller from above by the yarn cutting rubber roller, and then the yarn connecting line is cut by the rotation of the yarn cutting knife roller. Since the rotation of the yarn cutting knife roller and the up-and-down movement of the yarn cutting rubber roller can be automatically operated by the control system, automatic yarn cutting of the glass fiber yarn can be realized.

[0005] The automatic yarn cutting mechanism for glass fiber yarn provided by the application to solve the technical problem is:

[0006] An automatic yarn cutting mechanism for glass fiber yarn, characterized by comprising a yarn cutting knife roller, a yarn cutting blade, a knife roller driving assembly, a yarn cutting rubber roller and a yarn cutting actuator. The yarn cutting blade is arranged on the yarn cutting knife roller, and the yarn cutting knife roller can rotate under the action of the knife roller driving assembly. The yarn cutting rubber roller is used to compress the yarn to be cut to the yarn cutting knife roller, and the yarn cutting actuator is used to drive the yarn cutting rubber roller.

[0007] During yarn cutting, the yarn cutting rubber roller and the yarn cutting knife roller are respectively located above and below the yarn connecting line and are aligned up and down, and the yarn cutting actuator drives the up-and-down movement of the yarn cutting rubber roller. When the yarn cutting rubber roller is actuated downward, the yarn connecting line is compressed to the yarn cutting knife roller, the yarn cutting knife roller drives the yarn cutting blade to rotate to cut the yarn connecting line, and then the yarn cutting rubber roller is returned upward.

[0008] The yarn breaking rubber roller and the yarn breaking knife roller can be arranged above and below the yarn line in two ways. 1. Fixed mode: the yarn breaking rubber roller and the yarn breaking knife roller are fixedly arranged above and below the yarn line; no left and right movement of the yarn breaking rubber roller or the yarn breaking knife roller is required to complete the up-down alignment of the rollers during yarn breaking; 2. Moving mode: at least one of the yarn breaking rubber roller and the yarn breaking knife roller can move left and right to realize the up-down alignment of the rollers before yarn breaking.

[0009] The automatic glass fiber yarn breaking mechanism disclosed in the application is a special component that can be independently packaged or transported. During implementation, the fixed mode or the moving mode can be flexibly selected according to the specific application environment or the actual need of the yarn breaking function to be completed.

[0010] Preferably, the yarn breaking actuator is a pneumatic cylinder or an oil cylinder.

[0011] Preferably, the knife roller driving assembly includes a rack, a gear, and a knife roller driving cylinder; the rack is connected to the piston rod of the knife roller driving cylinder, and the gear is fixed on the knife roller shaft of the yarn breaking knife roller; the rack and the gear are meshed with each other, and the gear can rotate under the action of the rack and the knife roller driving cylinder to drive the yarn breaking knife roller to rotate.

[0012] Preferably, the knife roller driving cylinder is a pneumatic cylinder or an oil cylinder.

[0013] Preferably, the automatic glass fiber yarn breaking mechanism further includes a knife roller support frame, and the yarn breaking knife roller and the knife roller driving assembly are arranged on the knife roller support frame. Further preferably, a knife roller frame driving mechanism is further included, and the knife roller frame driving mechanism is used to drive the knife roller support frame to move left and right to complete the up-down alignment between the yarn breaking knife roller and the yarn breaking rubber roller.

[0014] Preferably, the automatic glass fiber yarn breaking mechanism further includes a rubber roller support frame, and the yarn breaking rubber roller and the yarn breaking actuator are arranged on the rubber roller support frame. Further preferably, a rubber roller frame driving mechanism is further included, and the rubber roller frame driving mechanism is used to drive the rubber roller support frame to move left and right to complete the up-down alignment between the yarn breaking rubber roller and the yarn breaking knife roller.

[0015] Beneficial technical effects:

[0016] The automatic glass fiber yarn breaking mechanism disclosed in the application can press and send the yarn line to the yarn breaking knife roller through the downward actuation of the yarn breaking rubber roller, and then cut the yarn line by rotating the yarn breaking knife blade driven by the yarn breaking knife roller. Since the yarn breaking actuator and the knife roller driving assembly can be controlled by the control system, the automatic glass fiber yarn breaking mechanism disclosed in the application can realize automatic yarn breaking.

[0017] The technical solutions and technical effects of the application will be described in detail below in combination with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Figure 1 is a front view of the automatic glass yarn breaking mechanism;

[0019] Figure 2 Figure 2 is a top view of the automatic glass yarn breaking mechanism;

[0020] Figure 3 is a schematic view of the automatic glass yarn breaking mechanism;

[0021] 1 - knife roller;

[0022] 2 - knife blade;

[0023] 3 - knife roller driving assembly, 31 - rack, 32 - gear, 33 - knife roller driving cylinder;

[0024] 4 - rubber roller;

[0025] 5 - yarn breaking actuator;

[0026] 6 - knife roller support frame;

[0027] 7 - rubber roller support frame. DETAILED DESCRIPTION

[0028] Referring to Figure 1 and Figure 2 , the automatic glass yarn breaking mechanism disclosed in the present application comprises a knife roller 1, a knife blade 2, a knife roller driving assembly 3, a rubber roller 4, a yarn breaking actuator 5, a knife roller support frame 6 and a rubber roller support frame 7.

[0029] The knife roller 1, the knife blade 2 and the knife roller driving assembly 3 are arranged on the knife roller support frame 6, and the rubber roller 4 and the yarn breaking actuator 5 are arranged on the rubber roller support frame 7.

[0030] The knife roller driving assembly 3 comprises a rack 31, a gear 32 and a knife roller driving cylinder 33. The knife roller driving cylinder 33 is fixedly assembled on the knife roller support frame 6, and the rack 31 is movably arranged on the knife roller support frame 6. The rack 31 is connected to the piston rod of the knife roller driving cylinder 33. The gear 32 is fixed on the knife roller shaft of the knife roller 1. The rack 31 and the gear 32 are in mesh with each other. The gear 32 can rotate under the action of the rack 31 and the knife roller driving cylinder 33 to drive the knife roller 1 and the knife blade 2 to rotate together. The knife roller driving cylinder 33 can be an air cylinder or an oil cylinder.

[0031] The yarn breaking actuator 5 is an air cylinder or an oil cylinder. The rubber roller 4 is fixedly assembled on the piston shaft of the yarn breaking actuator 5. When the yarn breaking actuator 5 is actuated downward, the yarn ball connecting line can be pressed and compressed onto the knife roller 1, and then the yarn ball connecting line is cut off by the rotation of the knife roller 1 and the knife blade 2. The yarn ball after the yarn ball connecting line is cut off is transported to the next process, and the rubber roller 4 is raised back to the position to wait for the next yarn ball to be transported to the yarn breaking position.

[0032] As mentioned above, the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 can be arranged above and below the yarn line in a fixed manner or a movable manner. When arranged in a fixed manner, the knife roller support frame 6 and the rubber roller support frame 7 are respectively fixed above and below the yarn breaking position of the drawing frame, and the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 are respectively arranged on the knife roller support frame 6 and the rubber roller support frame 7 and are vertically aligned. The yarns to be broken are sequentially conveyed through the yarn breaking position or placed on the yarn breaking position one by one by the mechanical hand, and then the openable and closable roller pair composed of the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 breaks the yarns by the yarn breaking blade 2.

[0033] When arranged in a movable manner, at least one of the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 can move left and right to realize the vertical alignment of the roller pair before breaking. Taking the yarn breaking knife roller 1 as an example, a knife roller frame driving mechanism is further included, which can drive the yarn breaking knife roller 1 to move left and right to complete the vertical alignment of the knife roller and the rubber roller. The knife roller frame driving mechanism can be a commonly used power assembly or component such as a lead screw sliding table module, an oil cylinder or an air cylinder. Connecting the knife roller support frame 6 to the driving component (sliding table or piston rod) of the knife roller frame driving mechanism can realize the left and right movement control of the knife roller support frame 6 through the electric control system. The knife roller support frame 6 can further include a yarn conveying device such as an electrically controlled conveying belt to realize the sequential forward conveying of the yarns one by one, or a mechanical hand can be used to realize the sequential forward movement of the yarns on the knife roller support frame 6 one by one. Each time a yarn is conveyed or transported, the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 break the yarn once. The purpose of the left and right movement of the knife roller support frame 6 can be to move to the right to receive or load a plurality of parallel placed yarns to be broken.

[0034] In the embodiment in which the yarn breaking rubber roller 4 can move left and right, a rubber roller frame driving mechanism is further included, which is used to drive the rubber roller support frame to move left and right to complete the vertical alignment between the yarn breaking rubber roller and the yarn breaking knife roller. The selection and function of the rubber roller frame driving mechanism are similar to those of the knife roller frame driving mechanism and will not be described here.

[0035] Principle and effect description:

[0036] Suppose that two yarns to be cut off have been conveyed or placed on the left and right sides of the yarn breaking position (the position where the yarn breaking rubber roller 4 and the yarn breaking knife roller 1 are vertically aligned) and the yarn line is between the yarn breaking rubber roller 4 and the yarn breaking knife roller 1;

[0037] The yarn breaking actuator 5 is started by controlling the conduction state of the electromagnetic valve, the piston rod of the yarn breaking actuator 5 is extended and drives the yarn breaking rubber roller 4 to press down, and the yarn line is pressed tightly onto the yarn breaking knife roller 1;

[0038] The knife roller driving assembly 3 is started, the knife roller driving cylinder 33 drives the gear 32 to rotate through the rack 31, the gear 32 drives the yarn breaking knife roller 1 to rotate synchronously, and the yarn breaking blade 2 rotates to cut off the yarn line.

[0039] In the embodiment that the knife roller support frame 6 and the broken-end knife roller 1 can move left and right, the broken-end process is as follows:

[0040] Suppose that a plurality of yarn balls whose yarn ball connecting lines need to be cut have been conveyed or placed on the knife roller support frame 6;

[0041] The knife roller support frame 6 is moved left and right by the knife roller frame driving mechanism to complete the up-down alignment with the broken-end rubber roller 4; whether the knife roller and the rubber roller have been up-down aligned can be determined by an infrared transmitting-receiving tube;

[0042] After the broken-end rubber roller 4 and the broken-end knife roller 1 are up-down aligned, the broken-end actuator 5 is started, and the broken-end actuator 5 drives the broken-end rubber roller 4 to press down to press the yarn ball connecting line tightly on the broken-end knife roller 1;

[0043] The knife roller driving assembly 3 is started synchronously, the gear 32 and the broken-end knife roller 1 rotate synchronously, and the broken-end blade 2 rotates to cut the yarn ball connecting line.

[0044] The technical scheme and technical effects of the present application are described in detail above in combination with the drawings and specific embodiments of the present application. It should be noted that other embodiments can be developed by those skilled in the art on the basis of the present application; any simple transformation and equivalent replacement without departing from the innovative concept of the present application are covered by the present application and belong to the protection scope of the present patent.

Claims

1. An automatic glass fiber yarn cutting mechanism, characterized in that: it comprises a cutting roller (1), a cutting blade (2), a cutting roller driving assembly (3), a cutting rubber roller (4), and a cutting actuator (5); the cutting blade (2) is arranged on the cutting roller (1), and the cutting roller (1) can rotate under the action of the cutting roller driving assembly (3); the cutting rubber roller (4) is used to press the yarn to be cut onto the cutting roller (1), and the cutting actuator (5) is used to drive the cutting rubber roller (4).

2. The automatic glass fiber yarn cutting mechanism according to claim 1, characterized in that: the cutting actuator (5) is a pneumatic cylinder or an oil cylinder.

3. The automatic glass fiber yarn cutting mechanism according to claim 1, characterized in that: the cutting roller driving assembly (3) comprises a rack (31), a gear (32), and a cutting roller driving cylinder (33); the rack (31) is connected to the piston rod of the cutting roller driving cylinder (33), and the gear (32) is fixed on the cutting roller shaft of the cutting roller (1); the rack (31) and the gear (32) are in mesh with each other, and the gear (32) can rotate under the action of the rack (31) and the cutting roller driving cylinder (33) to drive the cutting roller (1) to rotate.

4. The automatic glass fiber yarn cutting mechanism according to claim 3, characterized in that: the cutting roller driving cylinder (33) is a pneumatic cylinder or an oil cylinder.

5. The automatic glass fiber yarn cutting mechanism according to claim 1, characterized in that: it further comprises a cutting roller support frame (6), and the cutting roller (1), the cutting blade (2), and the cutting roller driving assembly (3) are arranged on the cutting roller support frame (6).

6. The automatic glass fiber yarn cutting mechanism according to claim 5, characterized in that: it further comprises a cutting roller frame driving mechanism, which is used to drive the left-right movement of the cutting roller support frame (6).

7. The automatic glass fiber yarn cutting mechanism according to claim 1, characterized in that: it further comprises a rubber roller support frame (7), and the cutting rubber roller (4) and the cutting actuator (5) are arranged on the rubber roller support frame (7).

8. The automatic glass fiber yarn cutting mechanism according to claim 7, characterized in that: it further comprises a rubber roller frame driving mechanism, which is used to drive the left-right movement of the rubber roller support frame (7). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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