A stretching device for alkali-free glass fiber tape

Abstract

The utility model discloses a stretching device for an alkali-free glass fiber belt, which relates to the technical field of alkali-free glass fiber belts, and comprises a guide rod, wherein both left and right ends of the surface of the guide rod are provided with a bottom plate, and a fixed slot plate is fixedly installed on the surface of the bottom plate, and a bidirectional screw rod is rotatably provided on the inner surface of the fixed slot plate, and a hand wheel is installed at the front end of the bidirectional screw rod penetrating the fixed slot plate, and positioning holes are evenly distributed around the penetrating part of the bidirectional screw rod on the front side of the outer surface of the fixed slot plate. Compared with the existing ordinary alkali-free glass fiber belt stretching device, the stretching device for the alkali-free glass fiber belt pushes the insertion rod into the positioning hole at the nearest corresponding point through the fixed ring plate under the action of a spring, and locks the hand wheel to prevent the hand wheel from rotating twice due to the influence of external force, resulting in changes in the spacing of the belt body support frame, affecting the tension of the glass fiber belt, and greatly improving the stability of the tensioning work.

Description

Technical Field

[0001] The utility model relates to the technical field of alkali-free glass fiber tapes, in particular to a stretching device for alkali-free glass fiber tapes. Background Art

[0002] Alkali-free glass fiber tape is woven with alkali-free glass fiber. It is mainly based on shuttleless woven fabrics. According to the fabric structure, it can be divided into plain weave, twill weave, satin weave, herringbone weave, broken twill weave, etc. It is mainly used for binding of motors, transformers, communication cables and electrical appliances, and is also a good fiberglass substrate. It is suitable for wrapping tapes and fire-proof and flame-retardant layers of various flame-retardant and fire-resistant cables. For cross-linked polyethylene insulated cables, if this series of highly flame-retardant, oxygen-proof and fire-proof tapes are selected as cable wrapping tapes, and inorganic paper ropes from our factory are selected as fillers, it will be possible to achieve flame retardancy of the cable or improve the flame retardancy level of the cable. When rolling up the alkali-free glass fiber tape, it is usually necessary to stretch and flatten the alkali-free glass fiber tape for subsequent rolling up.

[0003] The existing alkali-free glass fiber tape stretching device can avoid wrinkles and corners on both sides of the tape body by clamping and fixing the two sides of the glass fiber tape when stretching the alkali-free glass fiber tape, and then use an adjustable moving mechanism to stretch and stretch the fixed alkali-free glass fiber tape. However, the moving mechanism is formed by a screw structure or a slide rail structure. The two moving stretching structures are not effectively fixed after the moving stretching, which may cause the moving mechanism to rotate or slide again under the influence of external force, thereby affecting the stretching effect and making it difficult to stably stretch the glass fiber tape.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a stretching device for an alkali-free glass fiber tape is proposed. Utility Model Content

[0005] The utility model aims to provide a stretching device for an alkali-free glass fiber tape to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stretching device for an alkali-free glass fiber belt, comprising a guide rod, base plates are provided at both left and right ends of the surface of the guide rod, fixed slot plates are fixedly installed on the upper surface of the base plate, a bidirectional screw rod is rotatably provided on the inner surface of the fixed slot plate, a hand wheel is installed on the front end of the bidirectional screw rod passing through the fixed slot plate, positioning holes are evenly distributed around the penetration part of the bidirectional screw rod on the front side of the outer surface of the fixed slot plate, an insertion rod is inserted into the inside of the positioning hole, a fixed ring plate is fixedly installed on the surface of the insertion rod, and a spring is fixedly installed on the front side of the surface of the fixed ring plate.

[0007] Preferably, the front end of the insertion rod slides through the handwheel, and the front end of the spring is fixedly connected to the handwheel.

[0008] Preferably, moving blocks are threadedly connected to the left and right sides of the surface of the bidirectional screw rod, a support rod is fixedly installed on the upper end of the moving block, and a belt support frame is fixedly installed above the surface of the support rod.

[0009] Preferably, a bolt is threadedly connected through the surface of the belt support frame, and a pressure plate is rotatably mounted on the lower end of the bolt.

[0010] Preferably, a slide groove is provided on the inner surface of the belt support frame, a slider is slidably arranged inside the slide groove, and the slider is fixedly connected to one side of the surface of the pressure plate.

[0011] Preferably, a threaded rod is provided on one side opposite to the front end of the base plate, and the left end of the threaded rod rotates through a bearing and penetrates the left base plate to install a driving motor.

[0012] Preferably, the guide rod is fixedly connected to the left bottom plate, the right end of the guide rod slides through the right bottom plate, and the right end of the threaded rod is threadedly connected to the right bottom plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model prevents the hand wheel from rotating twice due to external force, which causes the spacing of the belt support frame to change and affects the tension of the glass fiber belt, by setting the positioning hole, the insertion rod, the fixed ring plate and the spring, and greatly improves the stability of the tensioning work;

[0015] 2. The utility model can adjust the length and width of the entire device according to the length and width of different glass fiber tapes through the arrangement of the guide rod, the fixed slot plate, the bidirectional screw rod, the hand wheel, the moving block, the support rod, the threaded rod and the driving motor, so as to ensure that the device can adapt to tapes of different lengths and widths to perform effective tightening work, making the device more adaptable, more flexible to use and more practical;

[0016] 3. The utility model arranges the belt body support frame, bolts, pressure plate, slide groove and slider. The belt body support frame supports the bottom of the glass fiber belt, rotates the bolts, pushes the pressure plate downward, fixes the end points of the glass fiber belt, avoids the side of the glass fiber belt from being bent, improves the flatness and stretching effect of the glass fiber belt during stretching, and the slide groove and slider limit the pressure plate, so that the pressure plate does not rotate, and moves downward smoothly, avoiding the pressure plate rotating with the bolts, causing the side of the glass fiber belt to be twisted and wrinkled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixed slot plate of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the belt body support frame of the utility model.

[0021] In the figure: 1. guide rod; 2. bottom plate; 3. fixed groove plate; 4. bidirectional screw rod; 5. hand wheel; 6. positioning hole; 7. plug rod; 8. fixed ring plate; 9. spring; 10. moving block; 11. support rod; 12. belt support frame; 13. bolt; 14. pressure plate; 15. slide groove; 16. slider; 17. threaded rod; 18. drive motor. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 2-Figure 3 As shown, a stretching device for an alkali-free glass fiber tape comprises a guide rod 1, a bottom plate 2 is arranged at both left and right ends of the surface of the guide rod 1, a fixed groove plate 3 is fixedly installed on the upper surface of the bottom plate 2, a bidirectional screw rod 4 is rotatably arranged on the inner surface of the fixed groove plate 3, a hand wheel 5 is installed at the front end of the bidirectional screw rod 4 penetrating the fixed groove plate 3, positioning holes 6 are evenly distributed around the penetrating part of the bidirectional screw rod 4 on the front side of the outer surface of the fixed groove plate 3, an insert rod 7 is inserted in the interior of the positioning hole 6, a fixed ring plate 8 is fixedly installed on the surface of the insert rod 7, and a spring 9 is fixedly installed on the front side of the surface of the fixed ring plate 8;

[0024] The front end of the insert rod 7 slides through the hand wheel 5 , and the front end of the spring 9 is fixedly connected to the hand wheel 5 .

[0025] By adopting the above technical solution, the positioning hole 6 limits the rear end of the insertion rod 7, so that after the front end passes through the hand wheel 5, the hand wheel 5 cannot rotate; and the spring 9 can transmit its own elastic force to the insertion rod 7 through the fixed ring plate 8, so that the insertion rod 7 can be stably inserted into the positioning hole 6 to avoid loosening; the fixed ring plate 8 can also limit the maximum pulling distance of the insertion rod 7 to prevent the insertion rod 7 from falling off.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the left and right sides of the surface of the bidirectional screw rod 4 are both threadedly connected with moving blocks 10, the upper end of the moving block 10 is fixedly installed with a support rod 11, and the upper surface of the support rod 11 is fixedly installed with a belt support frame 12.

[0027] By adopting the above technical solution, the moving block 10 is located on the inner surface of the fixed groove plate 3 and slides in contact with it. The bidirectional screw rod 4 rotates, and the moving block 10 is limited by the fixed groove plate 3 and cannot rotate with the bidirectional screw rod 4. It is then pushed by the thread to move, and the belt support frame 12 is driven by the support rod 11 to adjust the front and rear distance.

[0028] Furthermore, a bolt 13 is threadedly connected through the surface of the belt support frame 12 , and a pressing plate 14 is rotatably mounted on the lower end of the bolt 13 .

[0029] By adopting the above technical solution, the belt body support frame 12 supports the bottom of the glass fiber belt; the bolt 13 is rotated to push the pressing plate 14 downward to fix the end points of the glass fiber belt.

[0030] Furthermore, a slide groove 15 is provided on the inner surface of the belt support frame 12 , and a slider 16 is slidably provided inside the slide groove 15 . The slider 16 is fixedly connected to one side of the surface of the pressing plate 14 .

[0031] By adopting the above technical solution, the slide groove 15 and the slider 16 limit the pressing plate 14, so that the pressing plate 14 will not rotate, and the pressing plate 14 can move downward smoothly, avoiding the pressing plate 14 rotating with the bolt 13, causing the side of the glass fiber belt to twist and wrinkle.

[0032] Furthermore, a threaded rod 17 is provided on one side opposite to the front end of the bottom plate 2, and a drive motor 18 is installed at the left end of the threaded rod 17 which is rotatably penetrated through the left bottom plate 2 through a bearing;

[0033] The guide rod 1 is fixedly connected to the left bottom plate 2 , the right end of the guide rod 1 slides through the right bottom plate 2 , and the right end of the threaded rod 17 is threadedly connected to the right bottom plate 2 .

[0034] By adopting the above technical solution, the driving motor 18 drives the threaded rod 17 to rotate, and under the limitation of the right bottom plate 2 by the guide rod 1, the right bottom plate 2 can be moved and adjusted according to the stretched length of the glass fiber tape.

[0035] Working principle: When using the stretching device for the alkali-free glass fiber tape, first, put the two sides of the glass fiber tape into the tape body support frame 12, then turn the bolt 13 to push the pressure plate 14 downward to fix the end points of the glass fiber tape to avoid the side of the glass fiber tape from being bent, and then pull the insertion rod 7 out of the positioning hole 6 according to the length and width of the glass fiber tape, so that the hand wheel 5 can be rotated, and the bidirectional screw rod 4 can be rotated by the hand wheel 5 to make the moving block 10 move under the limit of the inner surface of the fixed groove plate 3, driving the support rod 11 to move synchronously, thereby adjusting the front The distance between the rear belt body support frame 12 is used to stretch the front and rear sides of the glass fiber belt. After the front and rear distance is stretched according to the width of the glass fiber belt, the insertion rod 7 is loosened. Under the action of the spring 9, the insertion rod 7 is pushed into the positioning hole 6 at the nearest corresponding point through the fixed ring plate 8, and the hand wheel 5 is locked to fix the front and rear stretching positions. The driving motor 18 drives the threaded rod 17 to rotate. Under the limitation of the guide rod 1 on the right bottom plate 2, the right bottom plate 2 can be moved to stretch the left and right sides of the glass fiber belt. This is the working principle of the stretching device of the alkali-free glass fiber belt.

Claims

1. A stretching device for an alkali-free glass fiber tape, comprising a guide rod (1), characterized in that: Bottom plates (2) are provided at both left and right ends of the surface of the guide rod (1), and a fixed groove plate (3) is fixedly installed on the upper surface of the bottom plate (2). A bidirectional screw rod (4) is rotatably installed on the inner surface of the fixed groove plate (3), and a hand wheel (5) is installed at the front end of the bidirectional screw rod (4) passing through the fixed groove plate (3). Positioning holes (6) are evenly distributed around the penetration position of the bidirectional screw rod (4) on the front side of the outer surface of the fixed groove plate (3), and an insertion rod (7) is inserted into the interior of the positioning hole (6). A fixed ring plate (8) is fixedly installed on the surface of the insertion rod (7), and a spring (9) is fixedly installed on the front side of the surface of the fixed ring plate (8).

2. The stretching device for an alkali-free glass fiber tape according to claim 1, characterized in that: The front end of the insertion rod (7) slides through the hand wheel (5), and the front end of the spring (9) is fixedly connected to the hand wheel (5).

3. The stretching device for an alkali-free glass fiber tape according to claim 1, characterized in that: The left and right sides of the surface of the bidirectional screw rod (4) are both threadedly connected with moving blocks (10), the upper end of the moving block (10) is fixedly mounted with a support rod (11), and the upper surface of the support rod (11) is fixedly mounted with a belt support frame (12).

4. The stretching device for an alkali-free glass fiber tape according to claim 3, characterized in that: A bolt (13) is threadedly connected through the surface of the belt support frame (12), and a pressing plate (14) is rotatably mounted on the lower end of the bolt (13).

5. The stretching device for an alkali-free glass fiber tape according to claim 3, characterized in that: The inner surface of the belt support frame (12) is provided with a slide groove (15), and a slider (16) is slidably arranged inside the slide groove (15), and the slider (16) is fixedly connected to one side of the surface of the pressure plate (14).

6. The stretching device for an alkali-free glass fiber tape according to claim 1, characterized in that: A threaded rod (17) is provided on the side opposite to the front end of the bottom plate (2), and the left end of the threaded rod (17) is rotatably passed through the left bottom plate (2) via a bearing and is provided with a driving motor (18).

7. The stretching device for an alkali-free glass fiber tape according to claim 1, characterized in that: The guide rod (1) is fixedly connected to the left bottom plate (2), the right end of the guide rod (1) slides through the right bottom plate (2), and the right end of the threaded rod (17) is threadedly connected to the right bottom plate (2).

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