A stretch detector for tape production

Abstract

The present invention relates to the field of stretch detection, and in particular to a stretch detector for tape production, including a detector, a connecting frame and a clamping block, etc.; a plurality of detectors are provided, and the detectors are distributed in a rectangular shape; a plurality of connecting frames are installed on the detectors located at the rear; and a clamping block for fixing the tape is provided on each connecting frame. The present invention realizes blocking and limiting the front and rear sides of the tape resting on the stretching roller by a limiting block and a limiting ring, so as to prevent the tape from sliding back and forth on the stretching roller when being pulled, causing deviation, and avoiding affecting the test result of the tape, and fixing the two ends of the tape by a clamping block, and then controlling the moving distance of the left and right stretching rollers respectively, thereby driving the tape to be pulled to the left and right, changing the position of the force point when the tape is pulled, and thus being more in line with the situation in which the force point of the tape is not necessarily in the middle during the use of the tape in real life.

Description

Technical Field

[0001] The invention relates to the field of stretching detection, in particular to a stretching detector for adhesive tape production. Background Art

[0002] When conducting tensile testing on existing tapes, both ends of the tape sample are usually fixed on the clamp of the tensile detector, and then the tape is moved to one end and pulled until it breaks. The data is recorded by the tensile detector to detect the tensile strength and elongation at break of the tape. However, when the tape is pulled during actual use, its stress conditions vary. Therefore, it cannot be guaranteed that the pulling stress points of the tape are evenly distributed at both ends of the broken part, resulting in deviations between the test data and the actual usage conditions, thereby affecting product performance.

[0003] In actual application scenarios of tapes, for example, when the tape is used to bundle and wrap objects, the tape cannot remain straight when pulled and is mostly wrinkled. When the testing equipment performs a stretch test on the tape, it only performs a simple straight stretch on both ends of the tape. Therefore, the existing stretch test of the tape cannot reflect the performance of the tape in actual applications, resulting in low credibility of the test results and poor practical value. Summary of the invention

[0004] In order to overcome the shortcomings of existing testing equipment that, when performing stretch testing on the tape, it is unable to perform stretch testing according to the actual usage scenario of the tape, resulting in a deviation between the test data and the actual usage situation, thereby affecting the product performance, the present invention provides a stretch detector for tape production.

[0005] The technical solution of the present invention is: a stretching detector for tape production, including a detector, a connecting frame and a clamping block; a plurality of detectors are provided, and the detectors are distributed in a rectangular shape; a plurality of connecting frames are installed on the detectors located at the rear; a clamping block for fixing the tape is provided on each connecting frame; it also includes a driving assembly, a limiting assembly, a stretching roller and a deformation assembly; a driving assembly is installed on each detector; a limiting assembly for preventing the tape from deviating is connected to the driving assembly; a plurality of stretching rollers are connected to the driving assembly; a deformation assembly for deforming the tape is installed on the detector.

[0006] Furthermore, a rubber layer is provided on the side of each clamping block contacting the tape.

[0007] Furthermore, the driving assembly includes a slide rail, an electric slider, a first fixed plate and a second fixed plate; each detector is fixedly connected to a slide rail; each slide rail is slidably connected to an electric slider; the two front electric sliders are each fixedly connected to a first fixed plate; the two rear electric sliders are each fixedly connected to a second fixed plate, and the stretching rollers are respectively connected to the adjacent first fixed plate and the second fixed plate.

[0008] Furthermore, the limiting assembly includes a limiting block and a limiting ring; the limiting block is fixedly connected to the front side of each stretching roller; and the limiting ring is arranged on the rear side of each stretching roller.

[0009] Furthermore, the deformation component includes a first driving member and an elastic telescopic rod; each stretching roller is configured to be cylindrical; a plurality of first driving members are fixedly connected to the driving component; each limit block is fixedly connected to the output end of an adjacent first driving member; an elastic telescopic rod is fixedly connected to the driving component; the elastic telescopic rod is located inside the adjacent stretching roller, and the front side of each elastic telescopic rod is fixedly connected to the adjacent limit block; each stretching roller is slidably connected to the adjacent limit ring.

[0010] Furthermore, a scraping ring for scraping off residual glue on the surface of the stretching roller is provided on the front side of each limiting ring.

[0011] Furthermore, it also includes a fixed block, a second driving member, a pressing block, a pressure plate and an extrusion block; a plurality of through grooves are arranged on the stretching roller; a plurality of fixed blocks are fixedly connected in each stretching roller; a second driving member is fixedly connected to each fixed block; a pressing block is fixedly connected to the output end of each second driving member; a plurality of pressure plates are arranged in each stretching roller; a plurality of extrusion blocks for changing the contact surface between the stretching roller and the tape are fixedly connected to each pressure plate, each extrusion block is fixedly connected to the adjacent stretching roller through a rubber strip, and each extrusion block is located in an adjacent through groove; a slope is arranged on the side of each pressure plate close to the pressing block.

[0012] Furthermore, each pressing block is provided with a sloped surface on one side close to the pressure plate, and the sloped surface is embedded with the inclined surface of the adjacent pressure plate.

[0013] Furthermore, each extrusion block is configured to be in the shape of a round rod.

[0014] Furthermore, an anti-stick coating is provided on the side of the limiting block and the limiting ring close to the stretching roller.

[0015] The beneficial effects are as follows: the present invention realizes blocking and limiting the front and rear sides of the tape resting on the stretching roller by the limiting block and the limiting ring, thereby preventing the tape from sliding forward and backward on the stretching roller when being pulled, causing deviation, and avoiding affecting the test results of the tape;

[0016] The two ends of the tape are fixed by clamping blocks, and then the moving distance of the left and right stretching rollers is controlled respectively, so as to drive the tape to be pulled to the left and right, and change the position of the force point when the tape is pulled, so as to better fit the situation in real life that the force point of the tape is not necessarily in the middle during use;

[0017] The first driving member drives the limit block and the stretching roller to move backward, so that the limit block squeezes the tape, so that the tape changes from a straight state to a variety of different wrinkled states, so that the tape is more suitable for the actual use scenario during the stretching test, and the practical value and credibility of the test results are improved. At the same time, it is convenient for engineers to optimize the structural design of the tape through the test data and reduce the failure rate of the tape during use;

[0018] The pressing block is used to squeeze the pressure plate so that the extrusion block extends from the through groove of the stretching roller, so that the contact surface between the stretching roller and the tape becomes uneven, thereby simulating the force conditions of the tape under different contact surfaces, improving the authenticity of the force during the use of the tape, and further improving the practical value of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a stretch detector for adhesive tape production of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamp block and the stretching roller combination of the present invention;

[0021] Figure 3 It is a schematic diagram of the combined three-dimensional structure of the stretching roller, the limiting block and the limiting ring of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the deformation component of the present invention;

[0023] Figure 5 It is a schematic diagram of the combined three-dimensional structure of the pressure plate and the extrusion block of the present invention;

[0024] Figure 6 It is a schematic diagram of the combined three-dimensional structure of the pressing block and the pressure plate of the present invention.

[0025] In the accompanying drawings: 1-detector, 2-connecting frame, 3-clamping block, 3001-rubber layer, 4-stretching roller, 4001-through groove, 5-tape, 101-slide rail, 102-electric slider, 103-first fixed plate, 104-second fixed plate, 105-limiting block, 106-limiting ring, 10601-scraper ring, 201-first driving member, 202-elastic telescopic rod, 301-fixed block, 302-second driving member, 303-pressing block, 304-pressure plate, 305-extrusion block. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] A stretch detector 1 for producing an adhesive tape 5, such as Figure 1-Figure 3As shown, it includes a detector 1, a connecting frame 2 and a clamping block 3; four detectors 1 are provided, and the detectors 1 are distributed in a rectangular shape; two connecting frames 2 symmetrically arranged up and down are installed on the detectors 1 located at the rear; and a clamping block 3 is provided on each connecting frame 2;

[0029] It also includes a driving component, a limiting component, a stretching roller 4 and a deformation component; each detector 1 is installed with a driving component; the driving component is connected to the limiting component; the driving component is connected to two left-right symmetrical stretching rollers 4, and the stretching rollers 4 are driven by the driving component to move left and right; the detector 1 is installed with a deformation component.

[0030] A rubber layer 3001 is provided on the side of each clamping block 3 contacting the tape 5 .

[0031] The driving assembly includes a slide rail 101, an electric slider 102, a first fixed plate 103 and a second fixed plate 104; each detector 1 is fixedly connected to a slide rail 101; each slide rail 101 is slidably connected to an electric slider 102; the two front electric sliders 102 are each fixedly connected to a first fixed plate 103; the two rear electric sliders 102 are each fixedly connected to a second fixed plate 104, and the stretching roller 4 is respectively connected to the adjacent first fixed plate 103 and the second fixed plate 104.

[0032] The limiting assembly includes a limiting block 105 and a limiting ring 106 ; the limiting block 105 is fixedly connected to the front side of each stretching roller 4 ; and the limiting ring 106 is arranged on the rear side of each stretching roller 4 .

[0033] The working steps of this embodiment are:

[0034] When the existing testing equipment performs a tensile test on the tape 5, the two ends of the tape 5 sample are usually fixed on the clamp of the tensile detector 1, and then the clamp drives one end of the tape 5 to move to one side, pulling the tape 5 until it breaks, and the tensile detector 1 records the changing data of the tape 5 to detect the tensile strength and elongation at break of the tape 5. However, when the tape 5 is pulled during actual application, its stress conditions are various. Therefore, it cannot be guaranteed that the pulling stress points of the tape 5 are evenly distributed at both ends of the broken part, resulting in a deviation between the test data and the actual usage, thereby affecting the product performance.

[0035] In the first step, the sample tape 5 is passed through the lower side of the two stretching rollers 4. There are two cases for discussion. The first case is to make the side of the tape 5 without glue contact the stretching roller 4; the second case is to make the side of the tape 5 with glue contact the stretching roller 4; then the two ends of the tape 5 are fixed on the two clamping blocks 3 above, as shown in FIG. Figure 1As shown, the adhesive tape 5 is fixed in a triangular shape, and the friction between the adhesive tape 5 and the clamping block 3 is increased by the rubber layer 3001 on the clamping block 3, thereby preventing the adhesive tape 5 from being separated from the clamping block 3 when the adhesive tape 5 is stretched to both sides, thereby improving the fixing effect of the adhesive tape 5.

[0036] In the second step, when the adhesive tape 5 is fixed, the left and right electric sliders 102 are controlled to move respectively, thereby driving the adjacent stretching rollers 4 to move to the left and right respectively, and controlling the moving distances of the left and right stretching rollers 4. Three cases are discussed. The first case is: the moving distance of the left stretching roller 4 is greater than the moving distance of the right stretching roller 4; the second case is: the moving distance of the right stretching roller 4 is greater than the moving distance of the left stretching roller 4; the third case is: the moving distances of the left and right stretching rollers 4 are the same; thereby, the adhesive tape 5 is pulled to the left and right sides at the same time, and the data of the stretching process of the adhesive tape 5 is recorded by the detector 1. At this time, the adhesive tape 5 is gradually stretched until it breaks. At the same time, the front and rear sides of the adhesive tape 5 resting on the stretching roller 4 are blocked and limited by the limit block 105 and the limit ring 106 to prevent the adhesive tape 5 from sliding back and forth on the stretching roller 4 when being pulled, causing Offset to avoid affecting the test result of the tape 5, then remove the broken tape 5, and then replace it with a new tape 5 of the same sample, repeat the above steps, obtain multiple sets of data of a tape 5, and thus complete the tensile test of the tape 5; compared with the conventional tensile test method of directly fixing the two ends of the tape 5, the present invention fixes the two ends of the tape 5 by the clamping block 3, and then controls the moving distance of the left and right stretching rollers 4 respectively, thereby driving the tape 5 to be pulled to the left and right, changing the position of the force point when the tape 5 is pulled, and thus being more in line with the actual life situation in which the force point of the tape 5 is not necessarily in the middle position during use. Since the tape 5 is not purely stressed at both ends in actual application, but bears tension on the side, this method will be closer to the actual use of the tape 5, thereby improving the authenticity of the scene during the test, and thus providing a more targeted performance evaluation.

[0037] Example 2

[0038] On the basis of Example 1, Figure 1 , Figure 2 and Figure 4-Figure 6As shown, the deformation component includes a first driving member 201 and an elastic telescopic rod 202; each stretching roller 4 is configured to be cylindrical; two first driving members 201 are fixedly connected to each first fixed plate 103, and the first driving member 201 is an electric push rod; each limit block 105 is fixedly connected to the output end of the adjacent first driving member 201; an elastic telescopic rod 202 is fixedly connected to each second fixed plate 104; the elastic telescopic rod 202 is located inside the adjacent stretching roller 4, and the front side of each elastic telescopic rod 202 is fixedly connected to the adjacent limit block 105; each limit ring 106 is fixedly connected to the adjacent second fixed plate 104; and each stretching roller 4 is slidably connected to the adjacent limit ring 106.

[0039] A residual scraper ring 10601 on the surface of the stretching roller 4 is arranged on the front side of each limiting ring 106 .

[0040] It also includes a fixed block 301, a second driving member 302, a pressing block 303, a pressure plate 304 and an extrusion block 305; a plurality of through slots 4001 are arranged on the stretching roller 4; eight fixed blocks 301 are fixedly connected in each stretching roller 4; a second driving member 302 is fixedly connected to each fixed block 301, and the second driving member 302 is an electric push rod; a pressing block 303 is fixedly connected to the output end of each second driving member 302; four pressure plates 304 are arranged in each stretching roller 4; a plurality of extrusion blocks 305 are fixedly connected to each pressure plate 304, each extrusion block 305 is fixedly connected to the adjacent stretching roller 4 through a rubber strip, and each extrusion block 305 is located in an adjacent through slot 4001; a slope is arranged on the side of each pressure plate 304 close to the pressing block 303.

[0041] A slope is provided on one side of each pressing block 303 close to the pressure plate 304 , and the slope is engaged with the inclined surface of the adjacent pressure plate 304 .

[0042] Each extrusion block 305 is configured to be in the shape of a round rod.

[0043] The limiting block 105 and the limiting ring 106 are both provided with an anti-stick coating on one side close to the stretching roller 4 .

[0044] The working principle of this embodiment is:

[0045] In actual application scenarios of the adhesive tape 5, for example, when the adhesive tape 5 is used to bundle and wrap objects, the adhesive tape 5 cannot remain straight when pulled, and is mostly wrinkled. When the existing equipment tests the adhesive tape 5, it only performs a simple straight stretch on the two ends of the adhesive tape 5. Therefore, the stretching test of the existing adhesive tape 5 cannot reflect the performance of the adhesive tape 5 in actual applications, resulting in low credibility of the test results and poor practical value.

[0046] In order to optimize product performance and obtain more practical test results, in the second step of Example 1: after the adhesive tape 5 is fixed, the first driving member 201 is controlled to drive the adjacent stretching roller 4 to move backward, and drive the adjacent limit block 105 and the stretching roller 4 to move backward. At this time, the elastic telescopic rod 202 inside the stretching roller 4 is squeezed and retracted backward, so that the stretching roller 4 passes through the limit ring 106 and slides backward. Since the adhesive tape 5 contains glue, one side will fit with the surface of the stretching roller 4. Therefore, after a long period of detection, a part of the glue will adhere to the surface of the stretching roller 4. At this time, the scraper ring 10601 on the limit ring 106 is used to scrape off the glue adhered to the surface of the stretching roller 4, so as to reduce the resistance between the stretching roller 4 and the limit ring 106 and improve the detection efficiency. At the same time, the limit block 105 squeezes the adhesive tape 5 between the limit block 105 and the limit ring 106, so that the adhesive tape 5 is wrinkled. Then the electric slider 102 is controlled to drive the two stretching rollers 4 to move away from each other, so as to prevent the adhesive tape 5 from being damaged. Pulling is performed to realize stretching detection. According to the test requirements, there are two cases for discussion. The first case is: the output ends of the left and right first driving members 201 are controlled to extend backward by the same distance at the same time, so that the tape 5 on the left and right stretching rollers 4 is squeezed by the same distance and deformed; the second case is: according to the test requirements, the output end of the left or right first driving member 201 is controlled to extend backward by an appropriate distance, so that the tape 5 on the left and right stretching rollers 4 is squeezed by different distances and deformed; the first driving member 201 drives the limit block 105 and the stretching roller 4 to move backward, so that the limit block 105 squeezes the tape 5, so that the tape 5 is transformed from a straight state to a variety of different wrinkled states, so that the tape 5 is more in line with the actual use scenario during the stretching test, thereby improving the practical value and credibility of the test results, and at the same time facilitating engineers to optimize the structural design of the tape 5 through test data and reduce the failure rate of the tape 5 during use.

[0047] In the first step of Example 1: when the adhesive tape 5 has not been fixed yet, the second driving member 302 is controlled to drive the pressing block 303 to move toward the adjacent pressure plate 304, so that the pressing block 303 gradually squeezes the pressure plate 304. Since the slope of the pressing block 303 is embedded with the inclined surface of the adjacent pressure plate 304, the pressure plate 304 will move upward along the slope of the pressing block 303, thereby driving the squeezing block 305 to extend out of the through groove 4001 of the stretching roller 4, and then the side of the adhesive tape 5 containing glue is attached to the stretching roller 4 to complete the fixation, so that the contact surface between the stretching roller 4 and the adhesive tape 5 is uneven. According to the test requirements The invention provides a method for analyzing the influence of different concave-convex degrees of the stretching roller 4 on the stretching test of the adhesive tape 5. When it is necessary to test the influence of different concave-convex degrees of the stretching roller 4 on the stretching test of the adhesive tape 5, the corresponding number of second driving members 302 are controlled to drive the extrusion blocks 305 to extend out from the through slot 4001 of the stretching roller 4. When it is necessary to test the influence of the concave-convex surfaces at different parts of the stretching roller 4 on the stretching test of the adhesive tape 5, the four second driving members 302 are controlled to drive the extrusion blocks 305 to extend out from the through slot 4001 of the stretching roller 4 in sequence, thereby simulating the stress conditions of the adhesive tape 5 under different contact surfaces, improving the authenticity of the stress of the adhesive tape 5 during use, and further improving the practical value of the test results.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stretch detector for adhesive tape production, comprising a detector (1), a connecting frame (2) and a clamping block (3); a plurality of detectors (1) are provided, and the detectors (1) are distributed in a rectangular shape; a plurality of connecting frames (2) are installed on the detectors (1) located at the rear; a clamping block (3) for fixing an adhesive tape (5) is provided on each connecting frame (2); the characteristic is that: It also includes a driving component, a limiting component, a stretching roller (4) and a deformation component; each detector (1) is installed with a driving component; the driving component is connected to a limiting component for preventing the adhesive tape (5) from deflecting; the driving component is connected to a plurality of stretching rollers (4); the detector (1) is installed with a deformation component for deforming the adhesive tape (5); The limiting assembly comprises a limiting block (105) and a limiting ring (106); the front side of each stretching roller (4) is fixedly connected to the limiting block (105); the rear side of each stretching roller (4) is provided with a limiting ring (106); The deformation component comprises a first driving member (201) and an elastic telescopic rod (202); each stretching roller (4) is arranged in a cylindrical shape; a plurality of first driving members (201) are fixedly connected to the driving component; each limiting block (105) is fixedly connected to the output end of an adjacent first driving member (201); an elastic telescopic rod (202) is fixedly connected to the driving component; the elastic telescopic rod (202) is located inside an adjacent stretching roller (4), and the front side of each elastic telescopic rod (202) is fixedly connected to the adjacent limiting block (105); and each stretching roller (4) is slidably connected to an adjacent limiting ring (106).

2. A stretch detector for adhesive tape production according to claim 1, characterized in that: A rubber layer (3001) is provided on the side of each clamping block (3) that contacts the adhesive tape (5).

3. A stretch detector for adhesive tape production according to claim 1, characterized in that: The driving assembly comprises a slide rail (101), an electric slider (102), a first fixed plate (103) and a second fixed plate (104); each detector (1) is fixedly connected to a slide rail (101); each slide rail (101) is slidably connected to an electric slider (102); the two front electric sliders (102) are each fixedly connected to a first fixed plate (103); the two rear electric sliders (102) are each fixedly connected to a second fixed plate (104), and the stretching roller (4) is respectively connected to the adjacent first fixed plate (103) and the second fixed plate (104).

4. A stretch detector for adhesive tape production according to claim 1, characterized in that: A scraping ring (10601) for scraping off residual glue on the surface of the stretching roller (4) is arranged on the front side of each limiting ring (106).

5. The stretch detector for adhesive tape production according to claim 1, characterized in that: The invention also comprises a fixed block (301), a second driving member (302), a pressing block (303), a pressure plate (304) and an extrusion block (305); a plurality of through slots (4001) are arranged on the stretching roller (4); a plurality of fixed blocks (301) are fixedly connected in each stretching roller (4); a second driving member (302) is fixedly connected to each fixed block (301); a pressing block (303) is fixedly connected to the output end of each second driving member (302); A plurality of pressure plates (304) are arranged in each stretching roller (4); a plurality of extrusion blocks (305) for changing the contact surface between the stretching roller (4) and the adhesive tape (5) are fixedly connected to each pressure plate (304); each extrusion block (305) is fixedly connected to an adjacent stretching roller (4) via a rubber strip, and each extrusion block (305) is located in an adjacent through groove (4001); and a slope is arranged on one side of each pressure plate (304) close to the pressing block (303).

6. A stretch detector for adhesive tape production according to claim 5, characterized in that: Each pressing block (303) is provided with a sloped surface on one side close to the pressure plate (304), and the sloped surface is embedded with the inclined surface of the adjacent pressure plate (304).

7. A stretch detector for adhesive tape production according to claim 5, characterized in that: Each extrusion block (305) is configured in the shape of a round rod.

8. The stretch detector for adhesive tape production according to claim 1, characterized in that: The limiting block (105) and the limiting ring (106) are both provided with an anti-stick coating on one side close to the stretching roller (4).

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