Tension detection device for flame-retardant hot melt cotton

Abstract

The utility model relates to the technical field of tension detection, and discloses a tension detection device for flame-retardant hot melt cotton, which comprises a machine body, a clamping assembly and a lifting assembly, the clamping assembly comprises an upper clamping block and a lower clamping block which are symmetrically distributed, two clamping holes are formed in each of the upper clamping block and the lower clamping block, and the lifting assembly is arranged in the machine body. A clamping assembly is arranged between the two clamping holes, the clamping assembly comprises a clamping plate, a hand wheel, a two-way screw rod, two sliding blocks and a supporting rod, the hand wheel is fixedly installed at one end of the two-way screw rod, the two-way screw rod is rotatably installed between the two clamping holes, the number of the sliding blocks is two, and the supporting rod is connected with the clamping plate. The two sliding blocks are symmetrically connected to the two-way screw in a sleeving mode and are in threaded connection with the two-way screw, and the supporting rods are hinged between the clamping plates and the sliding blocks; by arranging the clamping holes and the clamping assemblies, the flame-retardant hot melt cotton is doubly clamped, the clamping effect is improved, the flame-retardant hot melt cotton is prevented from sliding out of the clamping blocks, and the reliability of an experiment result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tension detection, in particular to a tension detection device for flame-retardant hot-melt cotton. Background Art

[0002] The tensile testing machine, also known as the universal material testing machine, is a device used to perform tensile tests on materials or products. After the production of flame-retardant hot-melt cotton is completed, a tensile testing machine is needed to perform tensile tests on the flame-retardant hot-melt cotton to detect whether the quality of the flame-retardant hot-melt cotton meets the standards.

[0003] The existing Chinese patent with announcement number CN215296968U discloses a tensile testing machine, including a base; the base is a truncated cone structure with a narrowed upper end, support columns are respectively installed on all four sides of the upper end of the base, the inner sides of the support columns are respectively installed with first driving cylinders, and the center of the upper end of the base is installed with a first clamping arm; a top plate is arranged above the support column, the upper ends of the support columns are respectively connected to the lower ends of the top plate, the center of the lower end of the top plate is installed with a second driving cylinder, and the middle part of the support column is provided with a slide plate; the four corners of the slide plate are respectively mounted on the support column, the center of the lower end of the slide plate is installed with a force sensor, the lower end of the force sensor is installed with a second clamping arm, the force sensor and the second clamping arm are connected to each other, and the first clamping arm and the second clamping arm are arranged opposite to each other; the output ends of the first driving cylinder are respectively connected to the four corners of the lower end of the slide plate, and the output end of the second driving cylinder is connected to the center of the upper end of the slide plate.

[0004] With respect to the above-mentioned related technologies, the inventors found that there are at least the following problems in the technology: the existing tensile testing machines generally use clamps to clamp the materials. Since the flame-retardant hot-melt cotton is soft and elastic, when the flame-retardant hot-melt cotton is stretched, the flame-retardant hot-melt cotton can easily slip out of the clamps, affecting the reliability of the test results.

[0005] Therefore, how to design a tensile force detection device for flame retardant hot melt cotton has become a problem that we currently need to solve. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a tension detection device for flame-retardant hot-melt cotton to solve the problems mentioned in the above background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tension detection device for flame-retardant hot-melt cotton, comprising a body, a clamping assembly and a lifting assembly, the body comprising a base and a support, the support being fixedly mounted on the base, the clamping assembly comprising a symmetrically distributed upper clamping block and a lower clamping block, the upper clamping block being slidably mounted on the support, the lower clamping block being fixedly mounted on the support, the upper clamping block and the lower clamping block being each provided with two clamping holes inside, and a clamping assembly being provided between the two clamping holes;

[0010] The clamping assembly includes a splint, a handwheel, a bidirectional screw, a slider and a support rod. There are two splints, which are respectively arranged in two clamping holes. The handwheel is fixedly installed at one end of the bidirectional screw, and the bidirectional screw is rotatably installed between the two clamping holes. There are two sliders, which are symmetrically sleeved on the bidirectional screw and threadedly connected to the bidirectional screw. The support rod is hinged between the splint and the slider.

[0011] Preferably, the upper clamping block and the lower clamping block are fixedly connected to a support bar on one side away from each other, and the support bar is arranged between the two clamping holes.

[0012] Preferably, guide rods are provided on both sides of the bidirectional screw, the guide rods are fixedly installed between the two clamping holes, and the sliding block is slidably sleeved on the guide rods.

[0013] Preferably, both ends of the clamping plate are provided with limit blocks, the inner wall of the clamping hole is provided with limit grooves, and the limit blocks slide in the limit grooves.

[0014] Preferably, the clamping plate and the clamping hole are both provided with anti-slip protrusions on one side away from the bidirectional screw.

[0015] Preferably, the lifting assembly includes a motor and a lifting screw, the motor is fixedly mounted on the top of the support, the lifting screw is rotatably mounted in the support, and the upper end of the lifting screw is fixedly connected to the motor output shaft, and the upper clamping block is sleeved on the lifting screw and threadedly connected to the lifting screw.

[0016] Preferably, guide grooves are provided on both sides of the support surface located at the lifting screw rod, and a guide block is provided on one side of the upper clamping block, and the guide block slides in the guide groove.

[0017] (III) Beneficial effects

[0018] The utility model provides a tension detection device for flame retardant hot melt cotton, which has the following beneficial effects:

[0019] First: by setting clamping holes and clamping components, when clamping the flame-retardant hot-melt cotton, the flame-retardant hot-melt cotton is passed back and forth through the two clamping holes, and then the hand wheel is used to rotate the bidirectional screw, so that the bidirectional screw drives the two sliders to move away from each other, and the slider drives the clamping plate to move in the clamping hole through the support rod, so that the two clamping plates respectively clamp the flame-retardant hot-melt cotton passing through the two clamping holes, so that the flame-retardant hot-melt cotton is doubly clamped, the clamping effect is improved, the flame-retardant hot-melt cotton is prevented from slipping out of the clamping block, and the reliability of the experimental results is improved.

[0020] Second, by providing a support bar, when the flame retardant hot melt cotton passes through two clamping holes, the support bar can support the flame retardant hot melt cotton between the two clamping holes, thereby avoiding excessive concentration of stress on the bending part of the flame retardant hot melt cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the upper clamping block of the utility model;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper clamping block of the utility model from above;

[0024] Figure 4 For this utility model Figure 3 A magnified view of the structure in the middle.

[0025] In the figure: 1. body; 11. base; 12. support; 2. clamping assembly; 21. upper clamping block; 22. lower clamping block; 23. clamping hole; 231. limit groove; 24. clamping assembly; 25. support bar; 241. clamping plate; 242. hand wheel; 243. bidirectional screw; 244. slider; 245. support rod; 246. guide rod; 3. lifting assembly; 31. motor; 32. lifting screw; 33. guide groove; 34. guide block. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] like Figure 1-4 As shown, the utility model provides a technical solution: a tension detection device for flame retardant hot melt cotton, comprising a body 1, a clamping assembly 2 and a lifting assembly 3, the body 1 comprising a base 11 and a support 12, the support 12 is fixedly mounted on the base 11, the clamping assembly 2 comprises a symmetrically distributed upper clamping block 21 and a lower clamping block 22, the upper clamping block 21 is slidably mounted on the support 12, the lower clamping block 22 is fixedly mounted on the support 12, two clamping holes 23 are provided inside the upper clamping block 21 and the lower clamping block 22, a clamping assembly 24 is provided between the two clamping holes 23, by setting the clamping assembly 2, the two ends of the flame retardant hot melt cotton can be respectively passed through the clamping holes 23 of the upper clamping block 21 and the lower clamping block 22, and the clamping assembly 24 is used to fix the two ends of the flame retardant hot melt cotton in the upper clamping block 21 and the lower clamping block 22, and then the lifting assembly 3 is used to drive the upper clamping block 21 to rise, and a tension test is performed on the flame retardant hot melt cotton.

[0030] Specifically, the clamping assembly 24 includes a clamping plate 241, a hand wheel 242, a bidirectional screw 243, a slider 244 and a support rod 245. There are two clamping plates 241, and the two clamping plates 241 are respectively arranged in two clamping holes 23. The hand wheel 242 is fixedly installed at one end of the bidirectional screw 243. The bidirectional screw 243 is horizontally arranged. The bidirectional screw 243 is rotatably installed between the two clamping holes 23. There are two sliders 244, and the two sliders 244 are symmetrically sleeved on the bidirectional screw 243 and threadedly connected to the bidirectional screw 243. The support rod 245 is hinged between the clamping plate 241 and the slider 244. By setting the clamping holes 23 and the clamping assembly 24, when clamping the flame-retardant hot-melt cotton, the flame-retardant hot-melt cotton can be clamped. The cotton passes back and forth through the two clamping holes 23, and then the hand wheel 242 is used to rotate the bidirectional screw 243, so that the bidirectional screw 243 drives the two sliders 244 to move away from each other, and the slider 244 drives the clamping plate 241 to move in the clamping hole 23 through the support rod 245, so that the two clamping plates 241 respectively clamp the flame-retardant hot-melt cotton passing through the two clamping holes 23, so that the flame-retardant hot-melt cotton is doubly clamped, the clamping effect is improved, the flame-retardant hot-melt cotton is prevented from slipping out of the clamping block, and the reliability of the experimental results is improved; the clamping plate 241 and the clamping hole 23 are both provided with anti-slip protrusions on the side away from the bidirectional screw 243. By setting the anti-slip protrusions, the anti-slip effect of the clamping plate 241 and the clamping hole 23 can be improved.

[0031] Furthermore, the upper clamping block 21 and the lower clamping block 22 are fixedly connected to the side away from each other with a support bar 25, and the support bar 25 is arranged between the two clamping holes 23. By setting the support bar 25, when the flame retardant hot-melt cotton passes through the two clamping holes 23, the support bar 25 can support the flame retardant hot-melt cotton between the two clamping holes 23, thereby avoiding excessive concentration of stress on the bending part of the flame retardant hot-melt cotton.

[0032] Reference Figure 3 and Figure 4 Guide rods 246 are provided on both sides of the bidirectional screw 243, and the guide rods 246 are fixedly installed between the two clamping holes 23. The slider 244 is slidably sleeved on the guide rods 246. By setting the guide rods 246, a guiding effect can be played on the slider 244; limit blocks are provided at both ends of the splint 241, and a limit groove 231 is provided on the inner wall of the clamping hole 23. The limit block slides in the limit groove 231. By setting the limit groove 231, a guiding and limiting effect can be played on both ends of the splint 241.

[0033] Reference Figure 1 and Figure 2The lifting assembly 3 includes a motor 31 and a lifting screw 32. The motor 31 is fixedly mounted on the top of the support 12. The lifting screw 32 is arranged vertically. The lifting screw 32 is rotatably mounted in the support 12, and the upper end of the lifting screw 32 is fixedly connected to the output shaft of the motor 31. The upper clamping block 21 is sleeved on the lifting screw 32 and is threadedly connected with the lifting screw 32. By setting the lifting assembly 3, the motor 31 can be started to drive the lifting screw 32 to rotate, so that the lifting screw 32 drives the upper clamping block 21 to rise, thereby stretching the flame-retardant hot-melt cotton; guide grooves 33 are provided on both sides of the lifting screw 32 on the surface of the support 12, and a guide block 34 is provided on one side of the upper clamping block 21. The guide block 34 slides in the guide groove 33. Through the cooperation of the guide groove 33 and the guide block 34, the upper clamping block 21 can be guided, thereby improving the stability of the upper clamping block 21.

[0034] The working process of the utility model is as follows: by setting the clamping component 2, the two ends of the flame-retardant hot-melt cotton can be respectively passed through the clamping holes 23 of the upper clamping block 21 and the lower clamping block 22, and the clamping component 24 is used to fix the two ends of the flame-retardant hot-melt cotton in the upper clamping block 21 and the lower clamping block 22. When clamping the flame-retardant hot-melt cotton, the flame-retardant hot-melt cotton is passed back and forth through the two clamping holes 23, and then the hand wheel 242 is used to rotate the bidirectional screw 243, so that the bidirectional screw 243 drives the two sliders 244 to move away from each other, and the slider 244 drives the clamping plate 241 to move in the clamping hole 23 through the support rod 245, so that the two clamping plates 241 respectively clamp the flame-retardant hot-melt cotton passing through the two clamping holes 23, so that the flame-retardant hot-melt cotton is doubly clamped and the clamping effect is improved, and then the motor 31 can be started to drive the lifting screw 32 to rotate, so that the lifting screw 32 drives the upper clamping block 21 to rise, thereby stretching the flame-retardant hot-melt cotton and performing a tensile test.

[0035] 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.

[0036] 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 tension detection device for flame-retardant hot-melt cotton, comprising a body (1), a clamping assembly (2) and a lifting assembly (3), characterized in that: The machine body (1) comprises a base (11) and a support (12), wherein the support (12) is fixedly mounted on the base (11), and the clamping assembly (2) comprises an upper clamping block (21) and a lower clamping block (22) which are symmetrically distributed, wherein the upper clamping block (21) is slidably mounted on the support (12), and the lower clamping block (22) is fixedly mounted on the support (12), and two clamping holes (23) are provided inside the upper clamping block (21) and the lower clamping block (22), and a clamping assembly (24) is provided between the two clamping holes (23); The clamping assembly (24) comprises a clamping plate (241), a hand wheel (242), a bidirectional screw (243), a slider (244) and a support rod (245). There are two clamping plates (241), and the two clamping plates (241) are respectively arranged in two clamping holes (23). The hand wheel (242) is fixedly installed on one end of the bidirectional screw (243), and the bidirectional screw (243) is rotatably installed between the two clamping holes (23). There are two sliders (244), and the two sliders (244) are symmetrically sleeved on the bidirectional screw (243) and threadedly connected to the bidirectional screw (243). The support rod (245) is hinged between the clamping plate (241) and the slider (244).

2. A tension detection device for flame retardant hot melt cotton according to claim 1, characterized in that: The upper clamping block (21) and the lower clamping block (22) are both fixedly connected to a support bar (25) on the side away from each other, and the support bar (25) is arranged between the two clamping holes (23).

3. The tension detection device for flame-retardant hot-melt cotton according to claim 1, characterized in that: Guide rods (246) are provided on both sides of the bidirectional screw rod (243). The guide rod (246) is fixedly installed between the two clamping holes (23), and the slider (244) is slidably sleeved on the guide rod (246).

4. A tension detection device for flame retardant hot melt cotton according to claim 1, characterized in that: Both ends of the clamping plate (241) are provided with limit blocks, and the inner wall of the clamping hole (23) is provided with a limit groove (231), and the limit block slides in the limit groove (231).

5. The tension detection device for flame retardant hot melt cotton according to claim 1, characterized in that: The clamping plate (241) and the clamping hole (23) are both provided with anti-slip protrusions on the side away from the bidirectional screw (243).

6. A tension detection device for flame retardant hot melt cotton according to claim 1, characterized in that: The lifting assembly (3) comprises a motor (31) and a lifting screw (32), wherein the motor (31) is fixedly mounted on the top of the support (12), the lifting screw (32) is rotatably mounted in the support (12), and the upper end of the lifting screw (32) is fixedly connected to the output shaft of the motor (31), and the upper clamping block (21) is sleeved on the lifting screw (32) and is threadedly connected to the lifting screw (32).

7. A tension detection device for flame retardant hot melt cotton according to claim 6, characterized in that: The surface of the support (12) is provided with guide grooves (33) on both sides of the lifting screw (32), and one side of the upper clamping block (21) is provided with a guide block (34), and the guide block (34) slides in the guide groove (33).

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