Device for testing unwinding strength of pressure-sensitive adhesive tape

Abstract

The invention discloses a pressure-sensitive adhesive tape unwinding strength testing device, and relates to the technical field of pressure-sensitive adhesive tape unwinding strength test.The pressure-sensitive adhesive tape unwinding strength testing device comprises a bottom plate, a mounting plate is fixedly connected to the top of the bottom plate, and a fixing shell is fixedly connected to the top of the mounting plate. A pressure-sensitive adhesive tape is installed on a rotating unit, when a connecting plate moves downwards, a first motor can be driven to move, so that a clamping rod is clamped in an inner cavity of a clamping groove, the first motor is started, the head of the pressure-sensitive adhesive tape is located between a first clamping rod and a second clamping rod, and at the moment, the second clamping rod moves downwards; according to the pressure-sensitive adhesive tape unwinding device, the pressure-sensitive adhesive tape head is clamped through the clamping plate, after clamping is completed, the connecting plate moves upwards, so that the pressure-sensitive adhesive tape is unwound, the effect of testing the unwinding strength is achieved through the testing head, and the problem of manually stripping the pressure-sensitive adhesive tape head is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure-sensitive adhesive tape unwinding strength testing, in particular to a pressure-sensitive adhesive tape unwinding strength testing device. Background Art

[0002] Pressure-sensitive adhesive tape is a tape-shaped product formed by applying a pressure-sensitive adhesive agent on one or both sides of a substrate. After the production of the pressure-sensitive adhesive tape is completed, the unwinding strength of the pressure-sensitive adhesive tape needs to be tested.

[0003] However, when conducting a test on the existing pressure-sensitive adhesive tape unwinding strength test device, the tape needs to be placed on the device, and then the tape head needs to be found by the naked eye, and the tape head needs to be peeled off manually. The peeled tape head is clamped by the clamping mechanism under the test head, and the clamping mechanism is lifted at this time to test the unwinding strength of the pressure-sensitive adhesive tape. However, the thickness of the pressure-sensitive adhesive tape is relatively thin, and it is difficult to peel it off manually, which increases the difficulty of operation.

[0004] In view of the above problems, it can be found that it is difficult to avoid the above problems at the same time when using the existing pressure-sensitive adhesive tape unwinding strength testing devices on the market, and even if they can be solved, they need to be solved with the cooperation of external tools, which makes it impossible to achieve the desired effect. Therefore, a pressure-sensitive adhesive tape unwinding strength testing device is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a device for testing the unwinding strength of a pressure-sensitive adhesive tape to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure-sensitive adhesive tape unwinding strength testing device, comprising a base plate, a mounting plate fixedly connected to the top of the base plate, a fixed shell fixedly connected to the top of the mounting plate, a connecting plate slidably connected to the inner cavity of the fixed shell, and a test head fixedly connected to the bottom of the connecting plate, characterized in that a clamping mechanism is provided at the bottom of the test head, the clamping mechanism being used to clamp the pressure-sensitive adhesive tape head;

[0007] The top of the mounting plate is fixedly connected with a rotating mechanism, which includes a rotating unit for driving the pressure-sensitive adhesive tape to rotate. The rotating mechanism also includes a detecting unit for detecting the position of the pressure-sensitive adhesive tape head.

[0008] Preferably, the rotating unit includes a support frame fixedly connected to the top of the mounting plate, one side of the support frame is rotatably connected to a cylinder through a bearing, the surface of the cylinder is provided with a groove, the inner cavity of the groove is slidably connected to an adjusting rod, one end of the adjusting rod is fixedly connected to a limiting rod, the surface of the limiting rod is slidably connected to the inner wall of the groove, the inner cavity of the cylinder is threadedly connected to a long rod, one end of the long rod is fixedly connected to a conical block used in conjunction with the adjusting rod, the inner cavity of the fixed shell is slidably connected to two guide rods, a first motor is fixedly connected between the two opposite sides of the guide rods, the output end of the first motor is rotatably connected to a clamping rod, and one side of the cylinder is provided with a clamping groove used in conjunction with the clamping rod.

[0009] Preferably, the inner cavity of the fixed shell is rotatably connected to a threaded rod through a bearing, the surface of the threaded rod is threadedly connected to the inner cavity of the connecting plate, the top of the fixed shell is fixedly connected to a second motor, and the output end of the second motor passes through the inner cavity of the fixed shell and is fixedly connected to one end of the threaded rod.

[0010] The cam is fixedly mounted on a first end of the driving mechanism, and the cam is connected to the first end of the driving mechanism, and the cam is connected to the first end of the driving mechanism, and the cam is connected to the first end of the driving mechanism.

[0011] Preferably, a tilting block is fixedly connected to the top of the first motor, and an L-shaped rod for use with the tilting block is provided on one side of the clamping mechanism.

[0012] Preferably, a guide groove is provided in the inner cavity of the fixed shell, the surface of the guide rod is slidably connected to the inner cavity of the guide groove, a first telescopic rod is fixedly connected to one side of the guide rod, the telescopic end of the first telescopic rod is fixedly connected to the inner wall of the guide groove, a first tension spring is movably sleeved on the surface of the first telescopic rod, one end of the first tension spring is fixedly connected to the guide rod, and the other end of the first tension spring is fixedly connected to the inner wall of the guide groove.

[0013] Preferably, the clamping mechanism includes a protrusion fixedly connected to the test end of the test head, the bottom of the protrusion is movably connected to a first clamping rod, the number of the first clamping rods is two, the bottom of the protrusion is provided with a movable plate, the bottom of the movable plate is fixedly connected to two second clamping rods, the top of the movable plate is fixedly connected to a movable rod, the surface of the movable rod is slidably connected to the inner cavity of the protrusion, the surface movable sleeve of the movable rod is provided with a strong spring, one end of the strong spring is fixedly connected to the movable plate, the other end of the strong spring is fixedly connected to the bottom of the protrusion, the top of the first clamping rod is fixedly connected to a short rod, the surface of the short rod is slidably connected to the inner cavity of the protrusion, the surface movable sleeve of the short rod is provided with a second tension spring, one end of the second tension spring is fixedly connected to the surface of the short rod, and the other end of the second tension spring is fixedly connected to the inner wall of the protrusion.

[0014] Preferably, the surface of the first clamping rod is provided with friction grooves, the number of the friction grooves is several, and the bottom of the second clamping rod is fixedly connected with a friction block used in conjunction with the friction grooves.

[0015] Preferably, one side of the fixed shell is fixedly connected to a U-shaped rod, the inner wall of the U-shaped rod is fixedly connected to an extension rod, a sliding groove is provided on the top of the extension rod, the inner cavity of the sliding groove is slidably connected to a lifting block, the inner wall of the sliding groove is fixedly connected to an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected to one side of the lifting block, the top of the lifting block is rotatably connected to a roller, and the number of the rollers is several.

[0016] Preferably, a controller is fixedly connected to the top of the base plate, and the first motor, the second motor, the electric telescopic rod, the test head and the touch switch are all electrically connected to the controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention sets a rotating mechanism, installs the pressure-sensitive adhesive tape on the rotating unit, and starts the second motor at this time, so that the connecting plate moves downward, so that the connecting plate drives the first clamping rod to contact the pressure-sensitive adhesive tape first. At this time, the first clamping rod and the second clamping rod are in a separated state, and when the connecting plate moves downward, it drives the first motor to move, so that the clamping rod is clamped in the inner cavity of the clamping groove, and the first motor is started to make the pressure-sensitive adhesive tape rotate forward one circle. If the pressure-sensitive adhesive tape head generates resistance to the first clamping rod, the controller controls the first motor to drive the pressure-sensitive adhesive tape to rotate forward 15 degrees, then reverse 15 degrees, and then rotate forward 25 degrees, so that the pressure-sensitive adhesive tape The head of the pressure-sensitive adhesive tape is located between the first clamping rod and the second clamping rod. At this time, the second clamping rod moves downward to clamp the head of the pressure-sensitive adhesive tape. If no resistance is generated by forward rotation, the output end of the first motor is reversed. When resistance is generated by reversal, the controller controls the first motor to drive the pressure-sensitive adhesive tape to reverse 15 degrees and then rotate forward 15 degrees, and then reverse 25 degrees, so that the other second clamping rod moves downward to clamp the head of the pressure-sensitive adhesive tape. After clamping is completed, the connecting plate moves upward to unwind the pressure-sensitive adhesive tape, and the unwinding strength is tested by the test head, thereby effectively solving the problem of manually peeling off the head of the pressure-sensitive adhesive tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the support frame, cylinder and protrusion of the present invention;

[0021] Figure 3 This is an exploded schematic diagram of the clamping rod and the clamping groove of the present invention;

[0022] Figure 4 is an exploded schematic diagram of the protrusion and the first clamping rod of the present invention;

[0023] Figure 5 is a three-dimensional schematic diagram of the first clamping rod and the second clamping rod of the present invention;

[0024] Figure 6 is a schematic cross-sectional view of the fixed shell of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the first motor and the guide rod of the present invention;

[0026] Figure 8 It is a cross-sectional schematic diagram of the fixing sleeve and the clamping rod of the present invention;

[0027] Figure 9 For the present invention Figure 8 A partial enlarged view of point A in the middle;

[0028] Figure 10 It is a cross-sectional schematic diagram of the cylinder and the limiting rod of the present invention.

[0029] In the figure: 1. bottom plate; 11. mounting plate; 12. fixing shell; 13. connecting plate; 14. test head; 2. rotating mechanism; 21. rotating unit; 2101. supporting frame; 2102. cylinder; 2103. groove; 2104. adjusting rod; 2105. limiting rod; 2106. long rod; 2107. cone block; 2108. guide rod; 2109. first motor; 2110. clamping rod; 2111. clamping groove; 2112. threaded rod; 2113. second motor; 22. detection unit; 2201. fixing sleeve; 2202. mounting tube; 2203. extrusion block; 2204. contact plate; 2205. touch switch; 2206. second spring; 2207. slide rail; 2208. fixed Position rod; 2209, arc rod; 2210, third spring; 2211, through hole; 2212, extension rod; 2213, first spring; 2214, tilting block; 2215, L-shaped rod; 2216, guide groove; 2217, first telescopic rod; 2218, first tension spring; 3, clamping mechanism; 301, protrusion; 302, first clamping rod; 303, movable plate; 304, second clamping rod; 305, movable rod; 306, strong spring; 307, short rod; 308, second tension spring; 309, friction groove; 310, friction block; 311, U-shaped rod; 312, extension rod; 313, sliding groove; 314, lifting block; 315, electric telescopic rod; 316, roller; 317, controller. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-10 The present invention provides a technical solution: a pressure-sensitive adhesive tape unwinding strength testing device, comprising a base plate 1, a mounting plate 11 fixedly connected to the top of the base plate 1, a fixed shell 12 fixedly connected to the top of the mounting plate 11, a connecting plate 13 slidably connected to the inner cavity of the fixed shell 12, a test head 14 fixedly connected to the bottom of the connecting plate 13, a clamping mechanism 3 provided at the bottom of the test head 14, the clamping mechanism 3 being used to clamp the pressure-sensitive adhesive tape head, wherein the test head 14 adopts a force sensor, which is used to measure and record the force generated during the stretching process, thereby obtaining unwinding strength data. This is prior art and will not be elaborated on herein.

[0032] The top of the mounting plate 11 is fixedly connected with a rotating mechanism 2, which includes a rotating unit 21 for driving the pressure-sensitive adhesive tape to rotate. The rotating mechanism 2 also includes a detecting unit 22 for detecting the position of the pressure-sensitive adhesive tape head.

[0033] As a further definition of the rotating mechanism 2 of the present invention, the rotating unit 21 includes a support frame 2101 fixedly connected to the top of the mounting plate 11, one side of the support frame 2101 is rotatably connected to a cylinder 2102 through a bearing, a groove 2103 is provided on the surface of the cylinder 2102, and an adjusting rod 2104 is slidably connected to the inner cavity of the groove 2103, one end of the adjusting rod 2104 is fixedly connected to a limiting rod 2105, the surface of the limiting rod 2105 is slidably connected to the inner wall of the groove 2103, a long rod 2106 is threadedly connected to the inner cavity of the cylinder 2102, and one end of the long rod 2106 is fixedly connected to a cone block 2107 used in conjunction with the adjusting rod 2104, the inner cavity of the fixed shell 12 is slidably connected to two guide rods 2108, a first motor 2109 is fixedly connected between the opposite sides of the two guide rods 2108, and the output end of the first motor 2109 is rotatably connected to a card The connecting rod 2110 and the cylinder 2102 are provided with a clamping groove 2111 for use with the clamping rod 2110. By setting the rotating unit 21, the pressure-sensitive adhesive tape is sleeved on the surface of the cylinder 2102, and then the long rod 2106 is rotated. Since the long rod 2106 is threadedly connected to the inner cavity of the cylinder 2102, the long rod 2106 drives the cone block 2107 to move, and the cone block 2107 squeezes the adjusting rod 2104, so that the limiting rod 2105 squeezes the inner wall of the pressure-sensitive adhesive tape, thereby achieving the effect of limiting the pressure-sensitive adhesive tape. By setting the first motor 2109, the clamping rod 2110 and the clamping groove 2111 for use together, when the unwinding strength of the pressure-sensitive adhesive tape is tested, the clamping rod 2110 will disengage from the clamping groove 2111, so as to avoid the output end of the first motor 2109 affecting the detection of the unwinding strength.

[0034] The inner cavity of the fixed shell 12 is rotatably connected to the threaded rod 2112 through a bearing, and the surface of the threaded rod 2112 is threadedly connected to the inner cavity of the connecting plate 13. The top of the fixed shell 12 is fixedly connected to the second motor 2113, and the output end of the second motor 2113 passes through the inner cavity of the fixed shell 12 and is fixedly connected to one end of the threaded rod 2112. By setting the threaded rod 2112 and the second motor 2113 for use together, after the pressure-sensitive adhesive tape is installed on the surface of the cylinder 2102, the second motor 2113 is started to rotate the threaded rod 2112, thereby driving the connecting plate 13 to move downward, so that the clamping mechanism 3 contacts the surface of the pressure-sensitive adhesive tape, thereby facilitating the clamping mechanism 3 to clamp the head of the pressure-sensitive adhesive tape.

[0035] The specific implementation of this embodiment is as follows: the pressure-sensitive adhesive tape is placed on the surface of the cylinder 2102, the cylinder 2102 is manually supported, and then the long rod 2106 is rotated. Since the long rod 2106 is threadedly connected to the inner cavity of the cylinder 2102, the long rod 2106 drives the cone block 2107 to move, and the cone block 2107 squeezes the adjusting rod 2104, so that the limiting rod 2105 squeezes the inner wall of the pressure-sensitive adhesive tape, thereby achieving the effect of limiting the pressure-sensitive adhesive tape. At this time, the second motor 2113 is started to rotate the threaded rod 2112, thereby driving the connecting rod 2113 to rotate. The plate 13 moves downward so that the clamping mechanism 3 contacts the surface of the pressure-sensitive adhesive tape, and the pressure-sensitive adhesive tape head is clamped by the clamping mechanism 3. At this time, the threaded rod 2112 is rotated in the opposite direction, so that the clamping mechanism 3 moves upward, thereby achieving the purpose of detecting the unwinding strength. When detecting the unwinding strength of the pressure-sensitive adhesive tape, the clamping rod 2110 will disengage from the clamping groove 2111 to prevent the output end of the first motor 2109 from affecting the detection of the unwinding strength. The clamping rod 2110 and the clamping groove 2111 are both polygonal in shape, and one end of the clamping rod 2110 is arc-shaped for easy clamping.

[0036] Example 2: Please refer to Figures 1-10 The present invention provides a technical solution: a pressure-sensitive adhesive tape unwinding strength testing device, which makes corresponding improvements to the technical problems mentioned in the background technology.

[0037] As a further limitation of the rotating mechanism 2 of the present invention, the detection unit 22 includes a fixed sleeve 2201 fixedly connected to one side of the first motor 2109, the surface of the fixed sleeve 2201 is fixedly connected to a mounting tube 2202, the number of the mounting tubes 2202 is several, the inner cavity of the mounting tube 2202 is slidably connected to an extrusion block 2203, one side of the extrusion block 2203 is fixedly connected to a contact plate 2204, the inner wall of the mounting tube 2202 is fixedly connected to a touch switch 2205, one side of the contact plate 2204 is fixedly connected to a second spring 2206, one end of the second spring 2206 is fixedly connected to the inner wall of the fixed sleeve 2201, and the inner cavity of the clamping rod 2110 is fixedly connected to the inner wall of the fixing sleeve 2201. The cavity is provided with a slide rail 2207, and the surface of the output end of the first motor 2109 is fixedly connected with a positioning rod 2208, one end of the positioning rod 2208 is fixedly connected with an arc rod 2209, and the surface of the arc rod 2209 is movably sleeved with two third springs 2210, one end of the third spring 2210 is fixedly connected to the inner wall of the slide rail 2207, and the surface of the arc rod 2209 is slidably connected to the inner cavity of the slide rail 2207, and the surface of the clamping rod 2110 is provided with a through hole 2211, and the inner cavity of the through hole 2211 is slidably connected with an extension rod 2212, and the surface of the extension rod 2212 is movably sleeved with a first spring 2213, and one end of the first spring 2213 is fixedly connected to the inner wall of the through hole 2211. The inner wall of the hole 2211 is fixedly connected, and the other end of the first spring 2213 is fixedly connected to the surface of the extension rod 2212. By setting the detection unit 22, the first motor 2109 is started, so that the pressure-sensitive adhesive tape rotates forward one circle. If the pressure-sensitive adhesive tape head generates resistance to the clamping mechanism 3, the output end of the first motor 2109 rotates in the inner cavity of the clamping rod 2110, so that the arc rod 2209 slides in the inner cavity of the slide rail 2207. When the arc rod 2209 slides, the positioning rod 2208 squeezes the extension rod 2212 out of the through hole 2211, so that the extension rod 2212 presses the extrusion block 2203 and the contact plate 2204. Squeeze so that the squeezing block 2203 contacts the touch switch 2205, and control the first motor 2109 through the touch switch 2205 to drive the pressure-sensitive adhesive tape to rotate forward 15 degrees, then reverse 15 degrees, and then rotate forward 25 degrees, so that the clamping mechanism 3 peels off a part of the pressure-sensitive adhesive tape head and clamps the pressure-sensitive adhesive tape head. If no resistance is generated after one round of forward rotation, the output end of the first motor 2109 is reversed. When resistance is generated by reversal, control the first motor 2109 to drive the pressure-sensitive adhesive tape to reverse 15 degrees, then rotate forward 15 degrees, and then reverse 25 degrees, so that the pressure-sensitive adhesive tape head is peeled off, thereby causing the clamping mechanism 3 to clamp the pressure-sensitive adhesive tape head.

[0038] A tilting block 2214 is fixedly connected to the top of the first motor 2109, and an L-shaped rod 2215 is provided on one side of the clamping mechanism 3 for use with the tilting block 2214. By setting the tilting block 2214 and the L-shaped rod 2215 for use together, when the clamping mechanism 3 moves downward, it will drive the L-shaped rod 2215 to move downward and squeeze the tilting block 2214, so that the clamping rod 2110 is stuck in the inner cavity of the clamping groove 2111. When the clamping mechanism 3 moves upward, the clamping rod 2110 is disengaged from the inner cavity of the clamping groove 2111, thereby preventing the output end of the first motor 2109 from affecting the detection of the unwinding strength.

[0039] The inner cavity of the fixed shell 12 is provided with a guide groove 2216, the surface of the guide rod 2108 is slidably connected to the inner cavity of the guide groove 2216, one side of the guide rod 2108 is fixedly connected to the first telescopic rod 2217, the telescopic end of the first telescopic rod 2217 is fixedly connected to the inner wall of the guide groove 2216, and the surface of the first telescopic rod 2217 is movably sleeved with a first tension spring 2218, one end of the first tension spring 2218 is fixedly connected to the guide rod 2108, and the other end of the first tension spring 2218 is fixedly connected to the inner wall of the guide groove 2216. A telescopic rod 2217 and a first tension spring 2218 are used in conjunction. When the L-shaped rod 2215 moves downward, the tilting block 2214 will be squeezed, causing the first motor 2109 to move, and the guide rod 2108 to slide in the inner cavity of the guide groove 2216. At this time, the first telescopic rod 2217 is extended, causing the first tension spring 2218 to extend. When the L-shaped rod 2215 moves upward, the squeezing of the tilting block 2214 will be cancelled, and the first motor 2109 will be reset through the force deformation of the first tension spring 2218.

[0040] The specific implementation of this embodiment is as follows: when the L-shaped rod 2215 moves downward, it squeezes the tilting block 2214, causing the first motor 2109 to move, thereby causing the clamping rod 2110 to be clamped in the inner cavity of the clamping groove 2111. At this time, the first motor 2109 is started, causing the pressure-sensitive adhesive tape to rotate forward one circle. If the pressure-sensitive adhesive tape head generates resistance to the clamping mechanism 3, the output end of the first motor 2109 rotates in the inner cavity of the clamping rod 2110, causing the arc rod 2209 to slide in the inner cavity of the slide rail 2207. When the arc rod 2209 slides, the positioning rod 2208 squeezes the protruding rod 2212 out of the through hole 2211, causing the protruding rod 221 2. The extrusion block 2203 and the contact plate 2204 are squeezed so that the extrusion block 2203 contacts the touch switch 2205. The touch switch 2205 controls the first motor 2109 to drive the pressure-sensitive adhesive tape to rotate forward 15 degrees, then reverse 15 degrees, and then rotate forward 25 degrees, so that the clamping mechanism 3 peels off a part of the pressure-sensitive adhesive tape head and clamps the pressure-sensitive adhesive tape head. If no resistance is generated after one round of forward rotation, the output end of the first motor 2109 is reversed. When resistance is generated after reversal, the first motor 2109 is controlled to drive the pressure-sensitive adhesive tape to reverse 15 degrees, then rotate forward 15 degrees, and then reverse 25 degrees, so that the pressure-sensitive adhesive tape head is peeled off, thereby enabling the clamping mechanism 3 to clamp the pressure-sensitive adhesive tape head.

[0041] Example 3: Please refer to Figures 1-10 The present invention provides a technical solution: a pressure-sensitive adhesive tape unwinding strength testing device, which makes corresponding improvements to the technical problems mentioned in the background technology.

[0042] The clamping mechanism 3 includes a protrusion 301 fixedly connected to the test end of the test head 14, and the bottom of the protrusion 301 is movably connected to a first clamping rod 302, and the number of the first clamping rods 302 is two. A movable plate 303 is provided at the bottom of the protrusion 301, and the bottom of the movable plate 303 is fixedly connected to two second clamping rods 304, and the top of the movable plate 303 is fixedly connected to a movable rod 305, and the surface of the movable rod 305 is slidably connected to the inner cavity of the protrusion 301, and the surface of the movable rod 305 is movably sleeved with a strong spring 306, one end of the strong spring 306 is fixedly connected to the movable plate 303, and the other end of the strong spring 306 is fixedly connected to the bottom of the protrusion 301, and the top of the first clamping rod 302 is fixedly connected to a short rod 307, and the surface of the short rod 307 is slidably connected to the inner cavity of the protrusion 301, and the surface of the short rod 307 is movably sleeved with a second tension spring 308, and one end of the second tension spring 308 is movably sleeved with the short rod 307. When the first clamping rod 302 and the second clamping rod 304 are driven by the first motor 2109 to rotate, the first clamping rod 302 will contact the surface of the pressure-sensitive adhesive tape, and the second clamping rod 304 will be moved downward to clamp the pressure-sensitive adhesive tape head.

[0043] The surface of the first clamping rod 302 is provided with friction grooves 309, and the number of friction grooves 309 is several. The bottom of the second clamping rod 304 is fixedly connected with a friction block 310 used in conjunction with the friction groove 309. By setting the friction groove 309 and the friction block 310 for use in conjunction with each other, when the first clamping rod 302 and the second clamping rod 304 clamp the pressure-sensitive adhesive tape head, the friction block 310 will be stuck in the inner cavity of the friction groove 309, thereby increasing the stability of the pressure-sensitive adhesive tape head.

[0044] The top of the lifting block 314 is fixedly connected to the inner wall of the U-shaped rod 311, and the top of the lifting block 314 is rotatably connected to the inner wall of the U-shaped rod 311. The top of the extension rod 312 is provided with a sliding groove 313, and the inner cavity of the sliding groove 313 is slidably connected to the lifting block 314. The inner wall of the sliding groove 313 is fixedly connected to the electric telescopic rod 315. The telescopic end of the electric telescopic rod 315 is fixedly connected to one side of the lifting block 314. The top of the lifting block 314 is rotatably connected to the roller 316. The number of rollers 316 is several. By setting the U-shaped rod 311, the extension rod 312, the lifting block 314 and the electric telescopic rod 315, when the protrusion 301 drives the movable plate 303 to move downward, the movable plate 303 will move with the lifting block When the roller 316 on 314 contacts and continues to move downward, the movable plate 303 will drive the movable rod 305 to move in the inner cavity of the protrusion 301, thereby separating the first clamping rod 302 from the second clamping rod 304. When the output end of the first motor 2109 drives the pressure-sensitive adhesive tape head to move between the first clamping rod 302 and the second clamping rod 304, the electric telescopic rod 315 is started to make the lifting block 314 move in the inner cavity of the sliding groove 313. When the lifting block 314 cancels the blocking of the movable plate 303, the strong spring 306 will drive the movable rod 305 to reset, thereby driving the movable plate 303 and the second clamping rod 304 to reset, thereby achieving the effect of clamping the pressure-sensitive adhesive tape head.

[0045] A controller 317 is fixedly connected to the top of the base plate 1. The first motor 2109, the second motor 2113, the electric telescopic rod 315, the test head 14 and the touch switch 2205 are all electrically connected to the controller 317. By setting the controller 317, after the pressure-sensitive adhesive tape is placed on the surface of the cylinder 2102, the second motor 2113 is started by the controller 317 to drive the clamping mechanism 3 to move to the bottom, so that the first clamping rod 302 contacts the pressure-sensitive adhesive tape. At this time, the first motor 2109 is started, so that the pressure-sensitive adhesive tape rotates forward one circle. If the touch switch 2205 is touched, the controller 317 controls the output end of the first motor 2109 to rotate forward 15 degrees and then reverse 15 degrees. The command of rotating forward 15 degrees and then reverse 15 degrees can be set multiple times, so that a part of the pressure-sensitive adhesive tape head is peeled off, and then the output end of the first motor 2109 rotates forward 25 degrees again. , so that the pressure-sensitive adhesive tape head is located between the first clamping rod 302 and the second clamping rod 304. At this time, the operation of the first motor 2109 is stopped, and the electric telescopic rod 315 is started, so that the lifting block 314 cancels the blocking of the movable plate 303, thereby achieving the clamping of the pressure-sensitive adhesive tape head. When the pressure-sensitive adhesive tape rotates forward one circle, if the touch switch 2205 is not touched, the output end of the first motor 2109 rotates reversely one circle. When the touch switch 2205 is touched, the output end of the first motor 2109 reverses 15 degrees and then rotates forward 15 degrees, thereby peeling off a part of the pressure-sensitive adhesive tape head. Then the output end of the first motor 2109 reverses 25 degrees again, so that the pressure-sensitive adhesive tape head can be clamped. Among them, the commands of rotating forward 15 degrees and then reverse 15 degrees and then reverse 15 degrees and then rotating forward 15 degrees can be set multiple times to avoid the pressure-sensitive adhesive tape head from not being peeled off.

[0046] The specific implementation of this embodiment is as follows: when the connecting plate 13 moves downward, it will drive the protrusion 301 to move downward, so that the first clamping rod 302 contacts the surface of the pressure-sensitive adhesive tape. When the pressure-sensitive adhesive tape is driven to rotate by the first motor 2109, the pressure-sensitive adhesive tape head will contact the first clamping rod 302. When in contact, the first clamping rod 302 will generate resistance to the pressure-sensitive adhesive tape head, and then the pressure-sensitive adhesive tape head will be scraped between the first clamping rod 302 and the second clamping rod 304 by the rotation of the output end of the first motor 2109. At this time, the second clamping rod 304 is moved downward, thereby achieving the effect of clamping the pressure-sensitive adhesive tape head, and the surface movable sleeve of the movable rod 305 is provided with a strong spring 306 to increase the clamping strength of the first clamping rod 302 and the second clamping rod 304 on the pressure-sensitive adhesive tape head.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-sensitive adhesive tape unwinding strength testing device, comprising a base plate (1), a mounting plate (11) fixedly connected to the top of the base plate (1), a fixed shell (12) fixedly connected to the top of the mounting plate (11), a connecting plate (13) slidably connected to the inner cavity of the fixed shell (12), and a test head (14) fixedly connected to the bottom of the connecting plate (13), characterized in that: A clamping mechanism (3) is provided at the bottom of the test head (14), and the clamping mechanism (3) is used to clamp the pressure-sensitive adhesive tape head; A rotating mechanism (2) is fixedly connected to the top of the mounting plate (11), wherein the rotating mechanism (2) comprises a rotating unit (21), wherein the rotating unit (21) is used to drive the pressure-sensitive adhesive tape to rotate, and the rotating mechanism (2) further comprises a detecting unit (22), wherein the detecting unit (22) is used to detect the position of the head of the pressure-sensitive adhesive tape.

2. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 1, characterized in that: The rotating unit (21) comprises a support frame (2101) fixedly connected to the top of the mounting plate (11); one side of the support frame (2101) is rotatably connected to a cylinder (2102) via a bearing; a groove (2103) is provided on the surface of the cylinder (2102); an adjusting rod (2104) is slidably connected to the inner cavity of the groove (2103); one end of the adjusting rod (2104) is fixedly connected to a limiting rod (2105); the surface of the limiting rod (2105) is slidably connected to the inner wall of the groove (2103); the inner cavity of the cylinder (2102) is fixedly connected to the limiting rod (2105); the surface of the limiting rod (2105) is slidably connected to the inner wall of the groove (2103); The cavity is threadedly connected to a long rod (2106), one end of the long rod (2106) is fixedly connected to a cone block (2107) used in conjunction with the adjustment rod (2104), the inner cavity of the fixed shell (12) is slidably connected to two guide rods (2108), a first motor (2109) is fixedly connected between opposite sides of the two guide rods (2108), the output end of the first motor (2109) is rotatably connected to a clamping rod (2110), and one side of the cylinder (2102) is provided with a clamping groove (2111) used in conjunction with the clamping rod (2110).

3. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 1, characterized in that: The inner cavity of the fixed shell (12) is rotatably connected to a threaded rod (2112) via a bearing, the surface of the threaded rod (2112) is threadedly connected to the inner cavity of the connecting plate (13), and the top of the fixed shell (12) is fixedly connected to a second motor (2113), the output end of the second motor (2113) passes through the inner cavity of the fixed shell (12) and is fixedly connected to one end of the threaded rod (2112).

4. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 2, characterized in that: The detection unit (22) includes a fixed sleeve (2201) fixedly connected to one side of the first motor (2109), the surface of the fixed sleeve (2201) is fixedly connected to a mounting tube (2202), the number of the mounting tubes (2202) is several, the inner cavity of the mounting tube (2202) is slidably connected to an extrusion block (2203), one side of the extrusion block (2203) is fixedly connected to a contact plate (2204), the inner wall of the mounting tube (2202) is fixedly connected to a touch switch (2205), one side of the contact plate (2204) is fixedly connected to a second spring (2206), one end of the second spring (2206) is fixedly connected to the inner wall of the fixed sleeve (2201), the inner cavity of the clamping rod (2110) is provided with a slide rail (2207), the surface of the output end of the first motor (2109) is fixedly connected to A positioning rod (2208) is connected, one end of the positioning rod (2208) is fixedly connected to an arc rod (2209), the surface of the arc rod (2209) is movably sleeved with two third springs (2210), one end of the third spring (2210) is fixedly connected to the inner wall of the slide rail (2207), the surface of the arc rod (2209) is slidably connected to the inner cavity of the slide rail (2207), a through hole (2211) is opened on the surface of the clamping rod (2110), the inner cavity of the through hole (2211) is slidably connected to an extension rod (2212), the surface of the extension rod (2212) is movably sleeved with a first spring (2213), one end of the first spring (2213) is fixedly connected to the inner wall of the through hole (2211), and the other end of the first spring (2213) is fixedly connected to the surface of the extension rod (2212).

5. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 2, characterized in that: A tilting block (2214) is fixedly connected to the top of the first motor (2109), and an L-shaped rod (2215) for use with the tilting block (2214) is provided on one side of the clamping mechanism (3).

6. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 2, characterized in that: The inner cavity of the fixed shell (12) is provided with a guide groove (2216), the surface of the guide rod (2108) is slidably connected to the inner cavity of the guide groove (2216), one side of the guide rod (2108) is fixedly connected to a first telescopic rod (2217), the telescopic end of the first telescopic rod (2217) is fixedly connected to the inner wall of the guide groove (2216), the surface of the first telescopic rod (2217) is movably sleeved with a first tension spring (2218), one end of the first tension spring (2218) is fixedly connected to the guide rod (2108), and the other end of the first tension spring (2218) is fixedly connected to the inner wall of the guide groove (2216).

7. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 2, characterized in that: The clamping mechanism (3) includes a protrusion (301) fixedly connected to the test end of the test head (14), the bottom of the protrusion (301) is movably connected to a first clamping rod (302), the number of the first clamping rods (302) is two, a movable plate (303) is provided at the bottom of the protrusion (301), the bottom of the movable plate (303) is fixedly connected to two second clamping rods (304), the top of the movable plate (303) is fixedly connected to a movable rod (305), the surface of the movable rod (305) is slidably connected to the inner cavity of the protrusion (301), and the surface of the movable rod (305) is movably sleeved with a strong A force spring (306) is provided, one end of the force spring (306) is fixedly connected to the movable plate (303), the other end of the force spring (306) is fixedly connected to the bottom of the protrusion (301), a short rod (307) is fixedly connected to the top of the first clamping rod (302), the surface of the short rod (307) is slidably connected to the inner cavity of the protrusion (301), a second tension spring (308) is movably sleeved on the surface of the short rod (307), one end of the second tension spring (308) is fixedly connected to the surface of the short rod (307), and the other end of the second tension spring (308) is fixedly connected to the inner wall of the protrusion (301).

8. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 7, characterized in that: The surface of the first clamping rod (302) is provided with friction grooves (309), and the number of the friction grooves (309) is several. The bottom of the second clamping rod (304) is fixedly connected with a friction block (310) used in conjunction with the friction grooves (309).

9. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 7, characterized in that: A U-shaped rod (311) is fixedly connected to one side of the fixed shell (12), an extension rod (312) is fixedly connected to the inner wall of the U-shaped rod (311), a sliding groove (313) is provided on the top of the extension rod (312), a lifting block (314) is slidingly connected to the inner cavity of the sliding groove (313), an electric telescopic rod (315) is fixedly connected to the inner wall of the sliding groove (313), a telescopic end of the electric telescopic rod (315) is fixedly connected to one side of the lifting block (314), and a roller (316) is rotatably connected to the top of the lifting block (314), and the number of the rollers (316) is several.

10. The pressure-sensitive adhesive tape unwinding strength testing device according to claim 9, characterized in that: A controller (317) is fixedly connected to the top of the base plate (1), and the first motor (2109), the second motor (2113), the electric telescopic rod (315), the test head (14) and the touch switch (2205) are all electrically connected to the controller (317).

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