Glass fiber yarn clamping and cutting mechanism

Abstract

The utility model provides a kind of glass fiber yarn clamping cutting mechanism, belong to glass fiber processing technical field.It solves the problem that existing yarn cutting mechanism cannot effectively cut yarn.It includes base, fixed jaw on base and the movable jaw that forms clamping action with fixed jaw, first slot is equipped on fixed jaw, second slot is equipped on movable jaw and is oppositely arranged with first slot, when movable jaw and fixed jaw form clamping action, first slot and second slot constitute the space for giving room, cutting structure is further equipped on base, and yarn is cut off / snip in the space for giving room by sawing / cutting mode with being clamped.Cutting after yarn is clamped by movable jaw and fixed jaw, yarn can be effectively cut off, and reliability is good.

Description

Technical Field

[0001] This utility model belongs to the field of glass fiber processing technology and relates to a glass fiber yarn clamping and cutting mechanism. Background Technology

[0002] Chinese patent discloses a paper tube and yarn extraction device [application publication number CN115806224A], which includes a frame, on which are installed a yarn roll positioning mechanism, a paper tube extraction mechanism, a yarn extraction and cutting mechanism, and a paper tube packing mechanism. The yarn roll positioning mechanism is used to clamp and position the yarn roll, the paper tube extraction mechanism is used to extract the paper tube from the yarn roll, the yarn extraction and cutting mechanism is used to gather, cut, and peel the yarn, and the paper tube packing mechanism is used to place the paper tube in the packing position on the paper tube shelf.

[0003] The yarn cutting structure includes a cutting cylinder, a scissor seat on the piston rod of the cutting cylinder, and pneumatic scissors fixed on the scissor seat. Before cutting, the yarn needs to be tightened by the extension and retraction of the piston rod of the cutting cylinder and the pneumatic scissors. However, one end of the yarn is waste yarn and the other end is a yarn ball. During the tightening process, the yarn will be continuously pulled out from the waste yarn / yarn ball, resulting in the yarn not being fully tightened and the pneumatic scissors being unable to effectively cut the yarn. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a glass fiber yarn clamping and cutting mechanism that can effectively cut the yarn.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A glass fiber yarn clamping and cutting mechanism includes a base, a fixed clamping jaw disposed on the base, and a movable clamping jaw that clamps with the fixed clamping jaw. The fixed clamping jaw has a first slot, and the movable clamping jaw has a second slot that is opposite to the first slot. When the movable clamping jaw clamps with the fixed clamping jaw, the first slot and the second slot form a clearance space. The base is also provided with a cutting structure, which cuts / severs the clamped yarn within the clearance space by sawing / shearing.

[0007] When this fiberglass yarn clamping and cutting mechanism is working, the yarn is first clamped and then placed across the clearance space. The two ends of the yarn in the clearance space are clamped by fixed jaws and movable jaws, respectively. This ensures that the yarn will not slip or shift when the cutting structure saws / cuts the yarn, thus ensuring that the yarn is cut accurately.

[0008] To increase the clamping force, the side of the fixed jaw facing the movable jaw is the first clamping surface, and the side of the movable jaw facing the fixed jaw is the second clamping surface. When the movable jaw and the fixed jaw form a clamping action, the second clamping surface is in contact with the first clamping surface.

[0009] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the base is provided with a transverse guide rail, which extends along the clamping direction of the movable jaw and the fixed jaw. A first slider is slidably fitted on the transverse guide rail, and a mounting seat driven by a first linear drive is provided on the first slider. The movable jaw is located on the mounting seat.

[0010] When the first linear drive unit is working, it will move the movable jaw closer to or away from the fixed jaw, which improves the stability of the movable jaw during the working process and avoids the situation where the movable jaw and the fixed jaw are not completely clamped or only partially clamped.

[0011] In the above-mentioned glass fiber yarn clamping and cutting mechanism, a second slider is slidably fitted on the transverse guide rail, the movable jaw is fixed on the second slider, a connecting rod parallel to the transverse guide rail is fixed on the second slider, the connecting rod is slidably fitted with the mounting base, an elastic element with one end acting on the movable jaw is sleeved on the connecting rod, the other end of the elastic element acts on the mounting base, and a limiting stop is provided at the end of the connecting rod away from the movable jaw.

[0012] To facilitate the installation of the connecting rod, a guide hole extending along the length of the transverse guide rail is provided on the mounting base. The connecting rod passes through the guide hole, is fitted with an elastic element, and then connects to the movable gripper. The preferred connection method is a threaded connection. After installation, the movable gripper slides into the guide hole. When the first linear drive unit moves the mounting base closer to the fixed gripper, the movable gripper initially abuts against the fixed gripper. As the mounting base continues to move, the elastic element is compressed, providing cushioning for the movable gripper. When the first linear drive unit moves the mounting base away from the fixed gripper, the limiting stop edge causes the connecting rod and the movable gripper to move away from the fixed gripper together, achieving separation of the movable and fixed grippers.

[0013] In the aforementioned glass fiber yarn clamping and cutting mechanism, the cutting structure includes a rotating power component mounted on a mounting base and a cutter disc driven by the rotating power component. The axis of the cutter disc extends horizontally along the length direction perpendicular to the transverse guide rail, and the cutter disc faces the clearance space. When the first linear drive component drives the mounting base closer to the fixed clamping jaws, the movable clamping jaws preferentially abut against the fixed clamping jaws. As the mounting base continues to move, the elastic element is compressed, causing the movable clamping jaws to continuously press against the fixed clamping jaws. The cutter disc gradually extends into the clearance space, and under the action of the rotating power component, the yarn clamped in the clearance space is straightened and cut.

[0014] In the aforementioned glass fiber yarn clamping and cutting mechanism, the cutting structure includes pneumatic scissors mounted on a mounting base. The cutting portion of the pneumatic scissors faces the clearance space, and the cutting direction of the pneumatic scissors is perpendicular to the extension direction of the yarn. When the first linear drive unit drives the mounting base closer to the fixed clamp, the movable clamp first abuts against the fixed clamp. As the mounting base continues to move, the elastic element is compressed, causing the movable clamp to continuously press against the fixed clamp. The cutting portion of the pneumatic scissors gradually extends into the clearance space, subsequently straightening and cutting the yarn clamped within the clearance space.

[0015] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the upper surface of the fixed gripper is a support plane, and the side of the fixed gripper is provided with a first clamping part that is higher than the support plane. The first slot is provided on the first clamping part. The movable gripper is provided with a second clamping part that is higher than the support plane and forms a clamping action with the first clamping part. The second slot is provided on the second clamping part. The clamping surfaces of the first clamping part and the second clamping part intersect the support plane perpendicularly.

[0016] After the yarn is fed onto the support plane and supported by the support plane, the second clamping part moves closer to the first clamping part under the action of the movable jaw, so that the clamping surface of the second clamping part fits with the clamping surface of the first clamping part, thus clamping the yarn located on the support plane.

[0017] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the fixed gripper has a support plate that is higher than the movable gripper on the side near the movable gripper. The support plane is located on the support plate. When the first clamping part and the second clamping part are clamped, the movable gripper is located below the support plate.

[0018] A clearance space is formed below the support plate to allow room for the movable gripper during clamping, ensuring that the first clamping part and the second clamping part can be clamped smoothly.

[0019] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the mounting base is provided with a vertically extending second linear drive member, and the second linear drive member is provided with a pressure plate driven by the second linear drive member, the pressure plate extending above the fixed jaws.

[0020] During operation, the yarn is pulled above the fixed clamping jaws, and then the pressure plate descends under the action of the second linear drive to initially press the yarn onto the support plane. Subsequently, the movable clamping jaws approach the fixed clamping jaws and clamp the yarn through the first clamping part and the second clamping part, thereby realizing the automatic clamping of the yarn.

[0021] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the second linear drive is provided with a vertical guide rail, and a third slider is slidably fitted on the vertical guide rail. The pressure plate is fixed on the third slider to improve the stability of the pressure plate's up and down movement.

[0022] In the above-mentioned glass fiber yarn clamping and cutting mechanism, the base is driven by a third linear drive member, and the driving direction of the third linear drive member is parallel to the extension direction of the yarn.

[0023] This fiberglass yarn clamping and cutting mechanism works in conjunction with the action of the wire-pulling rod. The wire-pulling rod pulls the yarn above the fixed clamping jaws. Then, the second linear drive unit drives the pressure plate to descend, initially pressing the yarn onto the support plane. As the third linear drive unit drives the base to move away from the wire-pulling rod, the yarn can be straightened between the pressure plate and the wire-pulling rod. Subsequently, the movable clamping jaws approach the fixed clamping jaws under the action of the first linear drive unit and clamp the yarn through the first clamping part and the second clamping part. The mounting base continues to move, causing the cutter disc to gradually extend into the clearance space, and under the action of the rotating power unit, the yarn clamped in the clearance space is cut.

[0024] After the yarn is cut, the first linear drive unit drives the mounting base to retract, causing the cutter head to disengage from the clearance space and the movable gripper to disengage from the fixed gripper. The second linear drive unit drives the pressure plate to rise, so that the yarn is in a loosened state.

[0025] Compared with existing technologies, this glass fiber yarn clamping and cutting mechanism has the following advantages:

[0026] Before cutting, the yarn is clamped by fixed and movable jaws, ensuring no slippage or deviation during cutting and guaranteeing cutting reliability. The continuous action from yarn clamping, straightening, clamping to cutting is completed by linear drive components, improving production efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the glass fiber yarn clamping and cutting mechanism in Embodiment 1.

[0028] Figure 2 This is a schematic diagram of the glass fiber yarn clamping and cutting mechanism in Embodiment 1 when the cutting structure is omitted.

[0029] Figure 3 This is another structural schematic diagram of the glass fiber yarn clamping and cutting mechanism in Embodiment 1.

[0030] Figure 4 This is another structural diagram of the glass fiber yarn clamping and cutting mechanism in Embodiment 1 when the cutting structure is omitted.

[0031] Figure 5 This is another structural schematic diagram of the glass fiber yarn clamping and cutting mechanism in Embodiment 1 when the cutting structure is omitted.

[0032] In the diagram, 1. Base; 2. Fixed gripper; 3. Movable gripper; 4. First slot; 5. Second slot; 6. Horizontal guide rail; 7. First slider; 8. First linear drive component; 9. Mounting base; 10. Second slider; 11. Connecting rod; 12. Elastic component; 13. Limiting stop; 14. Rotational power component; 15. Cutter head; 16. First clamping part; 17. Second clamping part; 18. Support plate; 19. Second linear drive component; 20. Pressure plate; 21. Vertical guide rail; 22. Third slider; 23. Third linear drive component. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] Example 1

[0035] like Figure 1 and Figure 3 The glass fiber yarn clamping and cutting mechanism shown works in conjunction with the wire drawing rod. It includes a base 1, a fixed gripper 2 on the base 1, and a movable gripper 3 that clamps with the fixed gripper 2. The base 1 is slidably mounted on a platform (not shown in the figure). A third linear drive 23 is provided on the platform to drive the base 1 to move back and forth in a linear motion. The driving direction of the third linear drive 23 is parallel to the wire drawing direction of the wire drawing rod.

[0036] In this embodiment, the third linear drive component 23 is a rodless cylinder.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, the base 1 is provided with a horizontal guide rail 6, which extends horizontally along the driving direction perpendicular to the third linear drive member 23. A first slider 7 is slidably fitted on the horizontal guide rail 6. The first slider 7 is provided with a mounting seat 9 driven by the first linear drive member 8. The movable gripper 3 is located on the mounting seat 9. When the first linear drive member 8 is working, it can drive the movable gripper 3 to move closer to or away from the fixed gripper 2.

[0038] In this embodiment, the first linear drive component 8 is a cylinder.

[0039] like Figure 1 , Figure 2 and Figure 5As shown, a second slider 10 is slidably fitted on the transverse guide rail 6, and a movable gripper 3 is fixed on the second slider 10. A connecting rod 11 parallel to the transverse guide rail 6 is fixed on the second slider 10. The connecting rod 11 is slidably fitted with the mounting base 9. An elastic element 12 with one end acting on the movable gripper 3 is sleeved on the connecting rod 11. In this embodiment, the elastic element 12 is a spring, and the other end of the spring acts on the mounting base 9. A limiting stop 13 is provided at the end of the connecting rod 11 away from the movable gripper 3.

[0040] To facilitate the installation of the connecting rod 11, a guide hole extending along the length of the transverse guide rail 6 is provided on the mounting base 9. The connecting rod 11 passes through the guide hole, is fitted with a spring, and then connects to the movable gripper 3. The preferred connection method is a threaded connection. After installation, the movable gripper 3 slides in conjunction with the guide hole.

[0041] In this embodiment, as Figure 1 and Figure 3 As shown, the cutting structure includes a rotating power component 14 mounted on the mounting base 9 and a cutter head 15 driven by the rotating power component 14. The rotating component is a motor, and the axis of the cutter head 15 is perpendicular to the length direction of the transverse guide rail 6. When the rotating power component 14 operates, it drives the cutter head 15 to rotate, which cuts the yarn through rotational cutting.

[0042] like Figure 1-5 As shown, the upper surface of the fixed gripper 2 is a support plane. The side of the fixed gripper 2 is provided with a first clamping part 16 that is set higher than the support plane. A first slot 4 extending vertically is opened on the first clamping part 16. The movable gripper 3 is provided with a second clamping part 17 that is set higher than the support plane and forms a clamping action with the first clamping part 16. A second slot 5 extending vertically is opened on the second clamping part 17. The first slot 4 and the second slot 5 are arranged opposite to each other. When the movable gripper 3 and the fixed gripper 2 form a clamping action, the first slot 4 and the second slot 5 constitute a clearance space for the tool disc 15 to extend into.

[0043] To ensure that the supporting plane always supports the yarn, the clamping surfaces of the first clamping part 16 and the second clamping part 17 intersect the supporting plane perpendicularly.

[0044] like Figure 1 , 2 and Figure 5 As shown, the fixed gripper 2 has a support plate 18 that is higher than the movable gripper 3 on the side near the movable gripper 3. The support plane is provided on the support plate 18. When the first clamping part 16 and the second clamping part 17 are clamped, the movable gripper 3 is located below the support plate 18.

[0045] When the first linear drive 8 drives the mounting base 9 to approach the fixed clamp 2, the movable clamp 3 first abuts against the fixed clamp 2. As the mounting base 9 continues to move, the spring will be compressed, so that the second clamping part 17 of the movable clamp 3 continuously abuts against the first clamping part 16 of the fixed clamp 2, and the cutter disc 15 gradually extends into the clearance space, and under the action of the rotating power member 14, the yarn clamped in the clearance space is straightened and cut.

[0046] When the first linear drive 8 drives the mounting base 9 away from the fixed gripper 2, the mounting base 9 can be driven away from the fixed gripper 2 under the action of the limit stop 13, and the connecting rod 11 and the movable gripper 3 can be further driven away from the fixed gripper 2 through the limit stop 13, so as to realize the separation of the movable gripper 3 from the fixed gripper 2.

[0047] like Figure 2 and Figure 4 As shown, the mounting base 9 is provided with a vertically extending second linear drive member 19, and the second linear drive member 19 is provided with a pressure plate 20 driven by the second linear drive member 19. The pressure plate 20 extends above the fixed gripper 2.

[0048] Specifically, such as Figure 2 As shown, the second linear drive component 19 is a cylinder with a piston rod extending downwards and a pressure plate 20 fixed at the lower end of the piston rod. The pressure plate 20 extends along the length of the transverse guide rail 6, and the lower part of the pressure plate 20 is a cylindrical surface.

[0049] To improve stability, such as Figure 4 As shown, the second linear drive member 19 is provided with a vertical guide rail 21, and a third slider 22 is slidably fitted on the vertical guide rail 21. The pressure plate 20 is fixed on the third slider 22.

[0050] This fiberglass yarn clamping and cutting mechanism works in conjunction with the action of the wire-pulling rod. The wire-pulling rod pulls the yarn above the fixed clamping jaw 2. Then, the second linear drive 19 drives the pressure plate 20 to descend, initially pressing the yarn onto the support plane. As the third linear drive 23 drives the base 1 to move away from the wire-pulling rod, the yarn can be straightened between the pressure plate 20 and the wire-pulling rod. Then, the movable clamping jaw 3 approaches the fixed clamping jaw 2 under the action of the first linear drive 8, and clamps the yarn through the first clamping part 16 and the second clamping part 17. The mounting base 9 continues to move, driving the cutter disc 15 to gradually extend into the clearance space, and cuts the yarn clamped in the clearance space under the action of the rotating power member 14.

[0051] After the yarn is cut, the first linear drive 8 drives the mounting base 9 to retract, causing the cutter head 15 to disengage from the clearance space and the movable gripper 3 to disengage from the fixed gripper 2. The second linear drive 19 drives the pressure plate 20 to rise, so that the yarn is in a loose state.

[0052] Example 2

[0053] The structural principle of this embodiment is basically the same as that of embodiment one. The difference is that the cutting structure includes pneumatic scissors mounted on the mounting base 9. The cutting part of the pneumatic scissors faces the clearance space, and the cutting direction of the pneumatic scissors is perpendicular to the extension direction of the yarn.

[0054] When the first linear drive 8 drives the mounting base 9 to approach the fixed clamp 2, the movable clamp 3 first abuts against the fixed clamp 2. As the mounting base 9 continues to move, the elastic element 12 will be compressed, so that the movable clamp 3 continues to press against the fixed clamp 2. The cutting part of the pneumatic scissors gradually extends into the clearance space, and then straightens and cuts the yarn clamped in the clearance space.

[0055] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A glass fiber yarn clamping and cutting mechanism, characterized in that, The device includes a base (1), a fixed clamp (2) disposed on the base (1), and a movable clamp (3) that clamps with the fixed clamp (2). The fixed clamp (2) has a first slot (4), and the movable clamp (3) has a second slot (5) that is opposite to the first slot (4). When the movable clamp (3) clamps with the fixed clamp (2), the first slot (4) and the second slot (5) form a clearance space. The base (1) is also provided with a cutting structure. The cutting structure cuts / cuts the clamped yarn in the clearance space by sawing / shearing.

2. The glass fiber yarn clamping and cutting mechanism according to claim 1, characterized in that, The base (1) is provided with a transverse guide rail (6), which extends along the clamping direction of the movable gripper (3) and the fixed gripper (2). A first slider (7) is slidably fitted on the transverse guide rail (6), and a mounting seat (9) driven by a first linear drive (8) is provided on the first slider (7). The movable gripper (3) is located on the mounting seat (9).

3. The glass fiber yarn clamping and cutting mechanism according to claim 2, characterized in that, The second slider (10) is slidably fitted on the transverse guide rail (6). The movable gripper (3) is fixed on the second slider (10). A connecting rod (11) parallel to the transverse guide rail (6) is fixed on the second slider (10). The connecting rod (11) is slidably fitted with the mounting base (9). An elastic element (12) with one end acting on the movable gripper (3) is sleeved on the connecting rod (11). The other end of the elastic element (12) acts on the mounting base (9). A limiting stop (13) is provided at the end of the connecting rod (11) away from the movable gripper (3).

4. The glass fiber yarn clamping and cutting mechanism according to claim 2, characterized in that, The cutting structure includes a rotating power member (14) mounted on a mounting base (9) and a cutter head (15) driven by the rotating power member (14). The axis of the cutter head (15) extends horizontally along the length direction perpendicular to the transverse guide rail (6), and the cutter head (15) faces the clearance space.

5. The glass fiber yarn clamping and cutting mechanism according to claim 2, characterized in that, The cutting structure includes pneumatic scissors mounted on a mounting base (9), with the cutting part of the pneumatic scissors facing the clearance space, and the cutting direction of the pneumatic scissors being perpendicular to the extension direction of the yarn.

6. The glass fiber yarn clamping and cutting mechanism according to claim 1, characterized in that, The upper surface of the fixed gripper (2) is a support plane. The side of the fixed gripper (2) is provided with a first clamping part (16) that is higher than the support plane. The first slot (4) is provided on the first clamping part (16). The movable gripper (3) is provided with a second clamping part (17) that is higher than the support plane and forms a clamping action with the first clamping part (16). The second slot (5) is provided on the second clamping part (17). The clamping surfaces of the first clamping part (16) and the second clamping part (17) intersect the support plane perpendicularly.

7. The glass fiber yarn clamping and cutting mechanism according to claim 6, characterized in that, The fixed gripper (2) has a support plate (18) on the side near the movable gripper (3) that is higher than the movable gripper (3). The support plane is located on the support plate (18). When the first clamping part (16) and the second clamping part (17) are clamped, the movable gripper (3) is located below the support plate (18).

8. The glass fiber yarn clamping and cutting mechanism according to claim 2, characterized in that, The mounting base (9) is provided with a vertically extending second linear drive member (19), and the second linear drive member (19) is provided with a pressure plate (20) driven by the second linear drive member (19), and the pressure plate (20) extends above the fixed gripper (2).

9. The glass fiber yarn clamping and cutting mechanism according to claim 8, characterized in that, The second linear drive member (19) is provided with a vertical guide rail (21), and a third slider (22) is slidably fitted on the vertical guide rail (21). The pressure plate (20) is fixed on the third slider (22).

10. The glass fiber yarn clamping and cutting mechanism according to claim 1, characterized in that, The base (1) is driven by a third linear drive (23), the driving direction of which is parallel to the extension direction of the yarn.

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