Special fixture for tension test of flame-retardant packing belt

Abstract

The utility model discloses a special fixture for flame-retardant packing belt tension testing, which relates to the technical field of packing belt tension testing and comprises a base, sliding seats are symmetrically arranged on two sides of the upper end of the base and synchronously move towards each other or away from each other along the horizontal direction, a spring dynamometer is arranged between the two sliding seats, and an extrusion plate is arranged on one side of the upper end of each sliding seat. A guide cylinder is arranged on one side of the middle of the upper end of the sliding seat, an L-shaped guide plate is arranged on one side of the guide cylinder, an anti-skid guide plate is arranged at one end of the L-shaped guide plate, and the spring dynamometer is used for testing the tensile force when the packing belt is broken; the packing belts on the outer side of the antiskid guide plate are overlapped, so that the packing belts are effectively prevented from slipping during movement and affecting the test precision, the tension value of the spring dynamometer during breakage of the packing belts is tested through synchronous movement of the sliding seat, the packing belts are uniformly stressed, and the test precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tension testing of strapping belts, in particular to a special clamp for tension testing of flame-retardant strapping belts. Background Art

[0002] Flame retardant strapping tape is a kind of packaging material with fire-proof and wear-resistant properties. Flame retardant strapping tape needs to be tested for toughness after production.

[0003] The existing strapping tape is relatively hard and easy to slip during testing, which brings great difficulties to the toughness test. In addition, the uneven force on the strapping tape will also affect the test accuracy.

[0004] In view of the above problems, the utility model provides a special clamp for tensile testing of flame retardant strapping tape. Utility Model Content

[0005] The utility model aims to provide a special clamp for testing the tension of flame-retardant strapping tape, which effectively prevents the strapping tape from slipping when moving and affecting the test accuracy by overlapping the strapping tape on the outer side of the anti-slip guide plate. In addition, the tension value of the spring dynamometer when the strapping tape breaks is tested by synchronous movement of the slide seat, and the strapping tape is evenly stressed, which improves the test accuracy, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special fixture for tensile testing of flame-retardant strapping tape, comprising: a base, a slide seat, a spring dynamometer, an extrusion plate, a guide cylinder, an L-shaped guide plate, an anti-slip guide plate and a strapping tape;

[0007] Slide seats are symmetrically arranged on both sides of the upper end of the base;

[0008] The slides move synchronously toward or away from each other in the horizontal direction;

[0009] A spring dynamometer is arranged between the two slides, and the spring dynamometer is used to test the tension when the strapping belt breaks;

[0010] An extrusion plate is arranged on one side of the upper end of the slide seat, and the extrusion plate can reciprocate along a straight line;

[0011] A guide cylinder is provided on one side of the middle part of the upper end of the slide seat;

[0012] An L-shaped guide plate is provided on one side of the guide cylinder;

[0013] An anti-skid guide plate is arranged at one end of the L-shaped guide plate.

[0014] Furthermore, it also includes:

[0015] A pair of fixing plates, both of which are fixedly connected to the edges of both sides of the upper end of the base;

[0016] A pair of bidirectional threaded screw rods, both of which are threadedly connected to the middle of the two slide seats;

[0017] A motor, the motor is fixedly mounted on the outside of one of the fixing plates;

[0018] One end of the bidirectional threaded screw is rotatably connected to the inside of the fixed plate through a bearing, and the other end passes through the fixed plate and is fixedly connected to the output end of the motor, and the sliding seat is slidably connected to the upper end of the base.

[0019] Furthermore, it also includes:

[0020] A support plate, the support plate is fixedly connected to an edge of one side of the upper end of the slide;

[0021] A screw rod, wherein the screw rod is threadedly connected to the middle of the support plate, and one end of the screw rod is rotatably connected to the middle of the side of the extrusion plate through a bearing;

[0022] The handle is fixedly connected to an end of the screw rod away from the extrusion plate, and the extrusion plate is slidably connected to the upper end of the slide seat.

[0023] Furthermore, a plurality of evenly distributed teeth are formed on the side surface of the extruded plate, and anti-slip patterns are formed on the outer side of the handle.

[0024] Furthermore, the guide cylinder is fixedly connected to the upper end of the slide, one end of the L-shaped guide plate is molded with an anti-skid guide plate, and the L-shaped guide plate and the anti-skid guide plate are both fixedly connected to the upper end of the slide.

[0025] Furthermore, two ends of the spring dynamometer are respectively firmly connected to the side surfaces of the slide seat on both sides.

[0026] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0027] The utility model provides a special clamp for testing the tension of flame-retardant strapping tape. The strapping tape is attached along the outer side of the L-shaped guide plate and the anti-skid guide plate and introduced into the inner side to be wound on the outer side of the guide cylinder. Then, the strapping tape is repeatedly attached to the outer side of the anti-skid guide plate in the reverse direction. After the strapping tape is installed, the extrusion plates on both sides are moved to clamp the two ends of the strapping tape. Then, the test is started. The two slides move synchronously and separately to stretch the strapping tape, and the spring dynamometer is stretched synchronously. When the strapping tape breaks, the tension value of the spring dynamometer is recorded. The purpose of this design is to effectively prevent the strapping tape from slipping when moving and affecting the test accuracy by overlapping the strapping tape on the outer side of the anti-skid guide plate. In addition, the tension value of the spring dynamometer when the strapping tape breaks is tested by the synchronous movement of the slide. The strapping tape is evenly stressed, thereby improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0030] Figure 3 This is a schematic diagram of the L-shaped guide plate structure in the utility model;

[0031] Figure 4 For this utility model Figure 1 Enlarged view of point A in the middle.

[0032] In the figure: 1. base; 2. fixing plate; 3. bidirectional threaded screw; 4. motor; 5. slide seat; 6. support plate; 7. screw; 8. handle; 9. extrusion plate; 10. tooth portion; 11. guide cylinder; 12. L-shaped guide plate; 13. anti-slip guide plate; 14. strapping tape; 15. spring dynamometer. DETAILED DESCRIPTION

[0033] 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.

[0034] In order to solve the problem of how to effectively test technology, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0035] A special fixture for testing the tension of flame-retardant strapping tape comprises a base 1, wherein slide seats 5 are symmetrically arranged on both sides of the upper end of the base 1, and the slide seats 5 move synchronously toward or away from each other in the horizontal direction, and a spring dynamometer 15 is arranged between the two slide seats 5, and an extrusion plate 9 is arranged on one side of the upper end of the slide seat 5, and the extrusion plate 9 can reciprocate along a straight line, and a guide cylinder 11 is arranged on one side of the middle part of the upper end of the slide seat 5, and an L-shaped guide plate 12 is arranged on one side of the guide cylinder 11, and an anti-slip guide plate 13 is arranged on one end of the L-shaped guide plate 12, and the spring dynamometer 15 is used to test the tension of the strapping tape 14 when it breaks.

[0036] Specifically, the strapping tape 14 is attached along the outside of the L-shaped guide plate 12 and the anti-skid guide plate 13 and introduced into the inside to be wound around the outside of the guide cylinder 11, and then repeatedly attached to the outside of the anti-skid guide plate 13 in the reverse direction. After the strapping tape 14 is installed, the extrusion plates 9 on both sides are moved to clamp the two ends of the strapping tape 14, and then the test is started. The two slides 5 move synchronously and separately to stretch the strapping tape 14, and the spring dynamometer 15 is stretched synchronously. When the strapping tape 14 breaks, the tension value of the spring dynamometer 15 at this time can be recorded. The purpose of this design is to effectively prevent the strapping tape 14 from slipping when moving and affecting the test accuracy by overlapping the strapping tape 14 on the outside of the anti-skid guide plate 13. In addition, the tension value of the spring dynamometer 15 when the strapping tape 14 breaks is tested by the synchronous movement of the slide 5, and the strapping tape 14 is evenly stressed, thereby improving the test accuracy.

[0037] Further, such as Figure 1 and Figure 2 As shown, the following preferred technical solutions are provided:

[0038] A fixed plate 2 is fixedly connected to the edges of both sides of the upper end of the base 1, and a bidirectional threaded screw 3 is threadedly connected to the middle of the two slides 5. A motor 4 is fixedly installed on the outer side of one of the fixed plates 2. One end of the bidirectional threaded screw 3 is rotatably connected to the inside of the fixed plate 2 through a bearing, and the other end passes through the fixed plate 2 and is fixedly connected to the output end of the motor 4. The slide 5 is slidably connected to the upper end of the base 1. The purpose of this design is that the motor 4 drives the bidirectional threaded screw 3 to rotate, and then drives the slide 5 to move synchronously toward or away from each other in the horizontal direction.

[0039] Further, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0040] A support plate 6 is fixedly connected to the edge of one side of the upper end of the slide 5, a screw rod 7 is threadedly connected to the middle of the support plate 6, one end of the screw rod 7 is rotatably connected to the middle of the side of the extrusion plate 9 through a bearing, and a handle 8 is fixedly connected to the end of the screw rod 7 away from the extrusion plate 9, and the extrusion plate 9 is slidably connected to the upper end of the slide 5. The purpose of this design is to rotate the handle 8 to drive the screw rod 7 to rotate, and then drive the extrusion plate 9 to reciprocate along a straight line.

[0041] Further, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0042] The side of the extrusion plate 9 is formed with a plurality of evenly distributed teeth 10, and the outer side of the handle 8 is processed with anti-skid patterns. The purpose of this design is to squeeze the strapping belt 14 through the teeth 10 to prevent slipping, and the anti-skid patterns play an anti-skid role.

[0043] Further, such as Figure 1-3 As shown, the following preferred technical solutions are provided:

[0044] The guide cylinder 11 is fixedly connected to the upper end of the slide 5, and an anti-skid guide plate 13 is formed at one end of the L-shaped guide plate 12. The L-shaped guide plate 12 and the anti-skid guide plate 13 are both fixedly connected to the upper end of the slide 5. The purpose of this design is to guide the winding of the packing tape 14, and at the same time, the overlapping part is used to prevent slipping.

[0045] Further, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0046] The two ends of the spring dynamometer 15 are respectively fastened to the side surfaces of the slide seats 5 on both sides. The purpose of this design is to test the tension value of the synchronously moving strapping belt 14 in real time through the spring dynamometer 15.

[0047] In summary: the strapping tape 14 is attached along the L-shaped guide plate 12 and the outside of the anti-skid guide plate 13 and introduced into the inside to be wound around the outside of the guide cylinder 11, and then repeatedly attached to the outside of the anti-skid guide plate 13 in the reverse direction. After the strapping tape 14 is installed, the extrusion plates 9 on both sides are moved to clamp the two ends of the strapping tape 14, and then the test is started. The two slides 5 move synchronously and separately to stretch the strapping tape 14, and the spring dynamometer 15 is stretched synchronously. When the strapping tape 14 breaks, the tension value of the spring dynamometer 15 at this time can be recorded. The purpose of this design is to effectively prevent the strapping tape 14 from slipping when moving and affecting the test accuracy by overlapping the strapping tape 14 on the outside of the anti-skid guide plate 13. In addition, the tension value of the spring dynamometer 15 when the strapping tape 14 breaks is tested by the synchronous movement of the slide 5, and the strapping tape 14 is evenly stressed, thereby improving the test accuracy.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special fixture for tensile testing of flame retardant strapping tape, characterized in that: include: A base (1), a slide seat (5), a spring dynamometer (15), an extrusion plate (9), a guide cylinder (11), an L-shaped guide plate (12), an anti-slip guide plate (13) and a packing tape (14); Slide seats (5) are symmetrically arranged on both sides of the upper end of the base (1); The slides (5) move synchronously toward or away from each other in the horizontal direction; A spring dynamometer (15) is arranged between the two slide seats (5), and the spring dynamometer (15) is used to test the tension applied to the strapping belt (14) when it breaks; A pressing plate (9) is provided on one side of the upper end of the slide seat (5), and the pressing plate (9) can reciprocate along a straight line; A guide cylinder (11) is provided on one side of the middle portion of the upper end of the slide seat (5); An L-shaped guide plate (12) is provided on one side of the guide cylinder (11); An anti-skid guide plate (13) is provided at one end of the L-shaped guide plate (12).

2. The special fixture for tensile testing of flame retardant strapping tape according to claim 1, characterized in that: Also includes: A pair of fixing plates (2), the pair of fixing plates (2) being fixedly connected to the edges on both sides of the upper end of the base (1); A pair of bidirectional threaded screw rods (3), wherein the pair of bidirectional threaded screw rods (3) are both threadedly connected to the middle portions of the two slide seats (5); A motor (4), wherein the motor (4) is fixedly mounted on the outside of one of the fixing plates (2); One end of the bidirectional threaded screw (3) is rotatably connected to the interior of the fixed plate (2) via a bearing, and the other end passes through the fixed plate (2) and is fixedly connected to the output end of the motor (4), and the slide seat (5) is slidably connected to the upper end of the base (1).

3. The special fixture for tensile testing of flame retardant strapping tape according to claim 1, characterized in that: Also includes: A support plate (6), the support plate (6) being fixedly connected to an edge of one side of the upper end of the slide seat (5); A screw rod (7), wherein the screw rod (7) is threadedly connected to the middle of the support plate (6), and one end of the screw rod (7) is rotatably connected to the middle of the side of the extrusion plate (9) via a bearing; A handle (8) is fixedly connected to an end of the screw rod (7) away from the extrusion plate (9), and the extrusion plate (9) is slidably connected to the upper end of the slide seat (5).

4. The special fixture for testing the tensile strength of flame-retardant strapping tape according to claim 3, characterized in that: The side surface of the extrusion plate (9) is formed with a plurality of evenly distributed tooth portions (10), and the outer side of the handle (8) is formed with anti-slip patterns.

5. The special fixture for tensile testing of flame retardant strapping tape according to claim 1, characterized in that: The guide cylinder (11) is fixedly connected to the upper end of the slide seat (5); one end of the L-shaped guide plate (12) is molded with an anti-skid guide plate (13); and both the L-shaped guide plate (12) and the anti-skid guide plate (13) are fixedly connected to the upper end of the slide seat (5).

6. The special fixture for tensile testing of flame retardant strapping tape according to claim 1, characterized in that: The two ends of the spring dynamometer (15) are respectively firmly connected to the side surfaces of the slide seats (5) on both sides.

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