Continuous yarn cutting mechanism of glass fiber drawing machine
By designing a yarn cutting mechanism in a fiberglass wire drawing machine, using technical means such as spring sheets, auxiliary wheels and compression springs, the yarn cutting knife is avoided from directly contacting the impeller, which solves the problem of difficulty in grasping the yarn cutting knife, reduces impeller damage, and improves the Production efficiency and equipment life.
Patent Information
- Application Number
- CN202420365286.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-27
AI Technical Summary
When existing fiberglass wire drawing machines cut the yarn connection between the yarn roll and the yarn roll, it is difficult to grasp the yarn cutting knife, which easily cuts the impeller and affects the service life of the impeller.
A fiberglass wire drawing machine yarn cutting mechanism is designed, and the upper swing arm and the lower swing arm are connected by a spring blade to the side away from the impeller. The auxiliary wheel and compression spring are arranged to avoid direct contact between the impeller by a circular blade and Rotate the setting to reduce damage to the impeller by the yarn cutting knife.
It effectively avoids rigid contact between the yarn cutting knife and the impeller, reduces damage to the impeller by the yarn cutting knife, extends the service life of the impeller, and improves production efficiency.
Smart Images
Figure CN222226199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass fiber drawing machines, in particular to a yarn cutting and connecting mechanism of a glass fiber drawing machine. Background Art
[0002] Glass fiber drawing machine is a mechanical equipment that draws molten glass into fiber filaments at high speed and winds them into fiber rolls according to a certain pattern.
[0003] At present, in the glass fiber drawing machine on the market, a certain amount of yarn will be entangled between the yarn rolls during the drawing process. After the drawing is completed, before the yarn rolls are unloaded, the yarns connecting the yarn rolls need to be cut off. In the prior art, most factories directly use manual yarn cutting. Although the operation is convenient, the manual operation increases the labor intensity of the workers, resulting in a decrease in the overall production efficiency of glass fiber drawing. Some glass fiber drawing factories use a solution that uses a mechanical structure to drive the yarn cutting knife to automatically cut the continuous yarn. However, when the yarn cutting knife cuts the continuous yarn, because it is mechanically controlled, its strength is difficult to control, which often causes the yarn cutting knife to cut the impeller, resulting in cut marks on the impeller surface, affecting the service life of the impeller. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a yarn cutting mechanism for a glass fiber drawing machine.
[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a glass fiber wire drawing machine yarn cutting mechanism, including an upper swing arm swingingly set on the wire drawing machine swing rod, a lower swing arm is set at the lower end of the upper swing arm, the upper swing arm and the lower swing arm are connected to each other on the side away from the wire drawing machine impeller through a spring sheet, and a knife seat is set on the side of the lower end of the lower swing arm close to the wire drawing machine impeller, and a yarn cutting knife is set in the knife seat.
[0006] By adopting the above technical solution, the upper swing arm and the lower swing arm are connected by a spring sheet on the side away from the impeller of the wire drawing machine. In this way, when the upper swing arm and the lower swing arm drive the yarn cutting knife to approach the impeller of the wire drawing machine to cut the yarn between the yarn rolls, the yarn cutting knife will be subjected to a reverse thrust when it contacts the impeller. Under the action of the spring sheet, the lower swing arm can be retracted, thereby avoiding rigid contact between the yarn cutting knife and the impeller and preventing the yarn cutting knife from cutting the impeller.
[0007] Furthermore, two auxiliary wheels are rotatably arranged on the knife seat, the wheel core of the auxiliary wheel is arranged perpendicular to the knife seat, the two auxiliary wheels are respectively located on the upper and lower sides of the yarn cutting knife, and the rims of the two auxiliary wheels on the side adjacent to the impeller protrude from the blade of the yarn cutting knife.
[0008] By adopting the above technical solution, an auxiliary wheel is respectively arranged on the upper and lower sides of the yarn cutting knife. When cutting the continuous yarn, the auxiliary wheel contacts the impeller first, which can prevent the yarn cutting knife from directly contacting the impeller and further prevent the yarn cutting knife from cutting the impeller.
[0009] Furthermore, a cavity is provided in the knife seat, a mounting seat is provided in the cavity adjacent to the impeller, a compression spring is provided in the cavity between the knife seat and the mounting seat, two ends of the compression spring are respectively fixedly connected to the knife seat and the mounting seat, and the yarn cutting knife is provided in the mounting seat.
[0010] By adopting the above technical solution, a cavity and a mounting seat are set in the knife seat, and the knife seat and the mounting seat are fixedly connected by a compression spring. In this way, when the yarn cutting knife contacts the impeller and is subjected to reverse thrust, the mounting seat can move in the reverse direction to compress the compression spring, thereby reducing damage to the impeller.
[0011] Furthermore, the yarn cutting knife is a circular blade, and the yarn cutting knife is rotatably arranged in the mounting seat.
[0012] Furthermore, the yarn cutter is configured as a circular blade and is rotatably disposed in the mounting seat, so that the yarn cutter can be driven to rotate after the yarn cutter contacts the impeller, thereby reducing damage to the impeller caused by the yarn cutter.
[0013] In summary, the utility model has the following beneficial effects:
[0014] 1. In the present application, the upper swing arm and the lower swing arm are connected by a spring sheet at a side away from the impeller of the wire drawing machine, so that when the upper swing arm and the lower swing arm drive the yarn cutting knife to approach the impeller of the wire drawing machine to cut the yarn between the yarn rolls, the yarn cutting knife will be subjected to a reverse thrust when it contacts the impeller, and the lower swing arm can be retracted under the action of the spring sheet, thereby avoiding the rigid contact between the yarn cutting knife and the impeller, and preventing the yarn cutting knife from cutting the impeller;
[0015] 2. In the present application, an auxiliary wheel is provided on each of the upper and lower sides of the yarn cutting knife, so that the auxiliary wheel first contacts the impeller when cutting the continuous yarn, thereby preventing the yarn cutting knife from directly contacting the impeller, and further preventing the yarn cutting knife from cutting the impeller;
[0016] 3. In the present application, a cavity and a mounting seat are provided in the knife seat, and the knife seat and the mounting seat are fixedly connected by a compression spring. In this way, when the yarn cutting knife contacts the impeller and is subjected to a reverse thrust, the mounting seat can move in the reverse direction to compress the compression spring, thereby reducing damage to the impeller. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0018] Figure 2It is a structural schematic diagram of the knife holder part of the embodiment of the utility model;
[0019] Figure 3 It is a side view of a knife holder according to an embodiment of the utility model;
[0020] Figure 4 It is a schematic cross-sectional structure diagram of a knife holder according to an embodiment of the utility model.
[0021] In the figure: 10, upper swing arm; 20, lower swing arm; 30, spring sheet; 40, knife seat; 41, auxiliary wheel; 42, cavity; 43, mounting seat; 44, compression spring; 50, yarn cutting knife. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0023] like Figure 1-4 As shown, the embodiment of the present application discloses a yarn cutting mechanism for a glass fiber drawing machine, which is arranged on a swing rod of the drawing machine, the swing rod is parallel to the impeller of the drawing machine, and a driving mechanism for driving the swing rod to swing is arranged in the drawing machine frame, and the driving mechanism drives the swing rod to rotate so that the yarn cutting mechanism arranged on the swing rod moves close to the impeller or moves away from the impeller. Specifically, the yarn cutting mechanism includes an upper swing arm 10, a lower swing arm 20, a knife seat 40 and a yarn cutting knife 50. Two semi-flange structures are arranged at the upper end of the upper swing arm 10, which is convenient for fixing the upper swing arm 10 on the swing rod. The lower swing arm 20 is arranged at the lower end of the upper swing arm 10, and the side away from the impeller of the drawing machine is connected by a spring sheet 30, so that the upper swing arm 10 and the lower swing arm 20 are not fixedly connected, so that after the lower swing arm 20 is subjected to reverse resistance during the movement, the lower swing arm 20 can be pushed back in the reverse direction to avoid rigid contact.
[0024] The knife seat 40 is arranged at the lower end of the lower swing arm 20 on the side close to the impeller of the wire drawing machine, and is used to install the yarn cutting knife 50. Specifically, a cavity 42 is arranged in the knife seat 40, and a mounting seat 43 is arranged in the cavity 42 on the side close to the impeller. The mounting seat 43 is in a T-shaped structure as a whole, and its T-shaped wing plate side is horizontally placed in the cavity 42, and the web side extends to the side of the knife seat 40 close to the impeller of the wire drawing machine. The cavity 42 in the knife seat 40 is also in a T-shaped structure as a whole corresponding to the mounting seat 43, and the width of the T-shaped wing plate of the cavity 42 is greater than the width of the T-shaped wing plate of the mounting seat 43. In this way, the mounting seat 43 can move in the cavity 42 but will not fall off. During setting, a compression spring 44 is also provided in the cavity 42, and the two ends of the compression spring 44 are fixedly connected to the knife seat 40 and the mounting seat 43 respectively. The mounting seat 43 is pushed outward by the compression spring 44 so that the mounting seat 43 is tightly fixed. When the mounting seat 43 receives a reverse thrust, the compression spring 44 can be compressed so that the mounting seat 43 has a certain reverse stroke for buffering.
[0025] The yarn cutter 50 is a circular blade, which is rotatably arranged in the mounting seat 43 and is used to cut the yarns connected between the yarn rolls. The yarn cutter 50 is arranged as a rotating circular blade, so that when the yarn cutter 50 contacts the impeller, the yarn cutter 50 will also rotate with the impeller under the rotation of the impeller, thereby reducing the damage of the yarn cutter 50 to the impeller.
[0026] Two auxiliary wheels 41 are also rotatably arranged on the knife seat 40, and the wheel core of the auxiliary wheels 41 is arranged perpendicular to the knife seat 40. The two auxiliary wheels 41 are respectively located on the upper and lower sides of the yarn cutting knife 50, and the rims of the two auxiliary wheels 41 on the side close to the impeller protrude from the blade of the yarn cutting knife 50. In this way, when the swing rod rotates to drive the upper swing arm 10, the lower swing arm 20, and the knife seat 40 to move toward the impeller, the two auxiliary wheels 41 first contact the impeller, thereby reducing the damage caused to the impeller by the yarn cutting knife 50.
[0027] The use principle of the yarn cutting mechanism of a glass fiber drawing machine in the present embodiment is: after the wire drawing machine completes the wire drawing work and before the yarn roll needs to be unloaded, the driving mechanism of the wire drawing machine drives the swing rod to rotate, driving the upper swing arm 10, the lower swing arm 20, and the knife seat 40 to move toward the impeller, and the two auxiliary wheels 41 on the knife seat 40 first contact the impeller, and the yarn cutting knife 50 contacts the yarn between the yarn rolls. Under the rotation of the impeller, the yarn cutting knife 50 cuts the yarn between the yarn rolls. Since the rotation of the swing arm is difficult to control accurately, the auxiliary wheel 41 will continue to swing after contacting the impeller. When the yarn cutting knife 50 contacts the impeller, the yarn cutting knife 50 is subjected to the reverse force of the impeller, causing the mounting seat 43 to move in the reverse direction to compress the compression spring 44, thereby converting the rigid contact between the yarn cutting knife 50 and the impeller into an elastic contact to reduce the damage of the impeller to the impeller by the yarn cutting knife 50; when the mounting seat 43 moves in the reverse direction to the maximum stroke, the mounting seat 43 transmits the reverse force to the knife seat 40, so that the knife seat 40 will be subjected to the reverse thrust of the impeller, so that under the action of the spring sheet 30, the side of the lower swing arm 20 and the upper swing arm 10 adjacent to the impeller is separated, causing the lower swing arm 20 to retreat in the reverse direction to prevent the yarn cutting knife 50 from rigidly contacting the impeller. In this way, by arranging the auxiliary wheel 41, the compression spring 44 and the spring sheet 30, the yarn cutting knife 50 and the impeller are in elastic contact, so that the blade of the yarn cutting knife 50 does not directly cut the impeller, thereby greatly reducing the damage of the yarn cutting knife 50 to the impeller when automatically cutting the continuous yarn, and extending the service life of the impeller.
[0028] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A glass fiber drawing machine cutting yarn mechanism, characterized by: The invention comprises an upper swing arm (10) swingably arranged on a swing rod of a wire drawing machine, a lower swing arm (20) being arranged at the lower end of the upper swing arm (10), the upper swing arm (10) and the lower swing arm (20) being connected at a side away from an impeller of the wire drawing machine via a spring sheet (30), a knife seat (40) being arranged at a side of the lower end of the lower swing arm (20) close to the impeller of the wire drawing machine, and a yarn cutting knife (50) being arranged in the knife seat (40).
2. A glass fiber drawing machine yarn cutting mechanism according to claim 1, characterized in that: Two auxiliary wheels (41) are rotatably arranged on the knife seat (40), the wheel core of the auxiliary wheel (41) is arranged perpendicular to the knife seat (40), the two auxiliary wheels (41) are respectively located on the upper and lower sides of the yarn cutting knife (50), and the rims of the two auxiliary wheels (41) on the side close to the impeller protrude from the blade of the yarn cutting knife (50).
3. A glass fiber drawing machine yarn cutting mechanism according to claim 1, characterized in that: A cavity (42) is arranged in the knife seat (40), a mounting seat (43) is arranged in the cavity (42) on a side adjacent to the impeller, a compression spring (44) is arranged in the cavity (42) between the knife seat (40) and the mounting seat (43), two ends of the compression spring (44) are respectively fixedly connected to the knife seat (40) and the mounting seat (43), and the yarn cutting knife (50) is arranged in the mounting seat (43).
4. A glass fiber drawing machine yarn cutting mechanism according to claim 3, characterized in that: The yarn cutting knife (50) is a circular blade, and the yarn cutting knife (50) is rotatably arranged in the mounting seat (43).