Thermal shrinkage film tensile strength detection device
By designing clamping structures and stretching drives that adapt to different sizes, the problems of clamping instability and size adaptability in existing devices have been solved, achieving accuracy and efficiency in the tensile strength testing of heat shrink film.
Patent Information
- Application Number
- CN202520127923.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing heat shrink film tensile strength testing devices are prone to sample slippage, twisting, or breakage when the clamping is unstable or the clamping position is incorrect, affecting the accuracy of the test results. Furthermore, they cannot adapt to shrink films of different sizes, increasing operational risks and fixture purchase costs.
A clamping structure including a fixed back plate, a slide bar, and a clamping plate was designed. By sliding and rotating, it can adapt to shrink films of different sizes. Combined with a stretching and telescopic drive and a data display screen, it can achieve stable clamping and multi-size adaptation.
It improves the accuracy and efficiency of testing, reduces the difficulty of operation and the frequency of fixture replacement, adapts to the testing needs of various sizes of shrink film, and reduces operational risks and costs.
Smart Images
Figure CN223883329U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stretching detection and technical field, more specifically to a kind of heat shrinkable film tensile strength detection device. BACKGROUND
[0002] Heat shrinkable film is a kind of material widely used in packaging industry, and it is favored due to its excellent transparency, strength and tear resistance. However, in order to ensure product quality and meet customer demand, the tensile properties of heat shrinkable film must be accurately tested, therefore, heat shrinkable film tensile strength detection device emerges as the times require. This detection device is usually based on the mechanical behavior of materials under tensile state, and measures the tensile strength and elongation at break of materials by applying a constant tensile speed. These data provide performance prediction of materials in actual application, which is crucial for evaluating the quality of heat shrinkable film.
[0003] The existing technology has the following deficiencies: If clamping is unstable or the clamping position is improper, it may cause the test sample to slip, twist or break during the test, affecting the accuracy of the test results. The slipped or broken test sample may cause abnormal test data, which cannot truly reflect the tensile properties of heat shrinkable film. The difficult clamping process may increase the risk of operators, such as hand injury or test sample damage. If the device can only clamp shrinkable films of a specific size, it cannot test the tensile strength of shrinkable films of other sizes. This may lead to the inability to comprehensively evaluate the performance differences of shrinkable films of different sizes, thereby affecting the comprehensive control of product quality. In order to adapt to shrinkable films of different sizes, multiple clamps may need to be purchased, which will increase the purchase cost and maintenance cost of clamps. UTILITY MODEL CONTENT
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a heat shrinkable film tensile strength detection device to solve the problems existing in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of heat shrinkable film tensile strength detection device, first sliding rod is fixedly connected with the side surface of the fixed back plate, second sliding rod is fixedly connected with the side surface of the fixed back plate, third fixed block is fixedly connected with the side surface of the fixed back plate, first movable hole is set in the side surface of the fixed back plate, first annular clamping piece is movably connected with the outer circle side wall of first sliding rod and second sliding rod, second annular clamping piece is movably connected with the outer circle side wall of first sliding rod and second sliding rod, third sliding rod is movably connected with the outer circle side wall of first movable hole, cross slide bar is fixedly connected with the outer circle side wall of third sliding rod, first oval clamping block is fixedly connected with the outer circle side wall of third sliding rod, second oval clamping block is movably connected with the outer circle side wall of cross slide bar, cross slide groove is set in the side surface of second oval clamping block, clamping wheel slide groove is set in the top of second oval clamping block, second movable hole is set in the inner cavity side wall of clamping wheel slide groove, second clamping roller is movably connected with the inner circle side wall of second movable hole, first rolling clamping wheel is movably connected with the top of first oval clamping block.
[0006] Further, the side surface of the third sliding rod is fixedly connected with a pulling handle, and the outer circle side wall of the third sliding rod is fixedly connected with a limiting fixed ring.
[0007] Further, the side surface of the fixed back plate is fixedly connected with a first fixed block, and the side surface of the fixed back plate is fixedly connected with a second fixed block.
[0008] Further, the bottom end of the first fixed block is fixedly connected with a first stretching and retracting drive machine, and the bottom end of the second fixed block is fixedly connected with a second stretching and retracting drive machine.
[0009] Further, the bottom end of the first stretching and retracting drive machine and the second stretching and retracting drive machine is fixedly connected with a detection workbench, the top end of the detection workbench is fixedly installed with a data display screen, and the top end of the detection workbench is fixedly installed with a control button.
[0010] Further, the inner circle side wall of the cross slide groove is movably connected with the outer circle side wall of the cross slide bar.
[0011] The technical effects and advantages of the utility model are as follows:
[0012] 1. The utility model discloses a convenient structure for fixing the shrinkable film, and the convenient clamping design enables the operator to quickly and accurately fix the heat shrinkable film on the testing device, thereby shortening the testing preparation time, and the clamping mechanism easy to operate reduces the requirement for the operator's skills, so that more people can undertake the testing work, and the testing efficiency is further improved.
[0013] 2. The utility model discloses a structure that can adjust the clamping of various sizes, and the device can clamp various sizes of shrink films, thereby meeting the test demand of different specifications of products on the market. For the case of needing to test various sizes of shrink films, the device does not need to frequently replace the clamp, but only needs simple adjustment, which greatly improves the test efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic diagram of the utility model;
[0015] Figure 2 It is the whole structure schematic diagram of the utility model;
[0016] Figure 3 It is the whole structure schematic diagram of the utility model adjustable clamping device;
[0017] Figure 4 It is the whole structure schematic diagram of the utility model fixed backboard;
[0018] Figure 5 It is the structure schematic diagram of the utility model sliding rod;
[0019] Figure 6 It is the structure schematic diagram of the utility model oval clamp block.
[0020] The figure mark is: 1, detection workbench;101, data display screen;102, control button;103, first stretch telescopic drive machine;104, second stretch telescopic drive machine;105, first fixed block;106, second fixed block;2, fixed backboard;201, first sliding rod;202, second sliding rod;203, first annular clamping piece;204, third fixed block;205, first movable hole;3, third sliding rod;301, cross slide;302, limit fixed ring;303, pull handle;304, first oval clamp block;305, first rolling clamp wheel;306, second annular clamping piece;307, second oval clamp block;308, clamp wheel sliding groove;309, second movable hole;310, cross sliding groove;311, second clamp roller. DETAILED DESCRIPTION
[0021] The technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model, and additionally, the form of each structure recorded in the following implementation is only an example, and the heat shrink film tensile strength detection device of the utility model is not limited to each structure recorded in the following implementation. All other implementation ways obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0022] REFERENCE Figures 1 to 6The utility model provides a kind of heat shrink film tensile strength detection device, including fixed backplate 2, it connects first slide bar 201, second slide bar 202, third fixed block 204 and first movable hole 205, provide the basis for the positioning and fixed of these components, the sliding track of the two slide bars is provided for first annular clamping piece 203 and second annular clamping piece 306, so that they can be fixed in different positions, to adapt to different size shrink film, first slide bar 201 is fixedly connected on the side surface of fixed backplate 2, second slide bar 202 is fixedly connected on the side surface of fixed backplate 2, third fixed block 204 is fixedly connected on the side surface of fixed backplate 2, third fixed block 204 can be used to further stabilize first slide bar 201 and second slide bar 202, or as the support point of other components, first movable hole 205 is opened in the side surface of fixed backplate 2, first movable hole 205 provides the space of activity for third slide bar 3, so that third slide bar 3 and the clamping mechanism on it can be moved and adjusted along this hole, first annular clamping piece 203 is movably connected on the outer circle side wall of first slide bar 201 and second slide bar 202, first slide bar 201 and second slide bar 202 are movably connected with second annular clamping piece 306, the two annular clamping pieces are movably connected with first slide bar 201 and second slide bar 202, for preliminary fixed one end of shrink film, third slide bar 3 is movably connected on the outer circle side wall of first movable hole 205, cross sliding strip 301 is fixedly connected on the outer circle side wall of third slide bar 3, cross sliding strip 301 cooperates with the cross slide groove 310 of second oval clamping block 307, so that second oval clamping block 307 can be moved and adjusted along the specific path, first oval clamping block 304 is fixedly connected on the outer circle side wall of third slide bar 3, second oval clamping block 307 is movably connected on the outer circle side wall of cross sliding strip 301, cross slide groove 310 is opened in the side surface of second oval clamping block 307, clamping wheel slide groove 308 is opened in the top end of second oval clamping block 307, second movable hole 309 is opened in the inner cavity side wall of clamping wheel slide groove 308, second movable hole 309 is movably connected with second clamping roller 311 on the inner circle side wall, first rolling clamping wheel 305 is movably connected on the top end of first oval clamping block 304, the two rolling components are respectively installed on the top end of first oval clamping block 304 and second oval clamping block 307, for reducing friction in clamping process to prevent damage tear shrink film.
[0023] Wherein, the side of third slide bar 3 is fixedly connected with pull handle 303, the outer circle side wall of third slide bar 3 is fixedly connected with limit fixed ring 302.
[0024] Wherein, the side of fixed backplate 2 is fixedly connected with first fixed block 105, the side of fixed backplate 2 is fixedly connected with second fixed block 106.
[0025] The bottom end of the first fixed block 105 is fixedly connected with a first stretchable drive machine 103, and the bottom end of the second fixed block 106 is fixedly connected with a second stretchable drive machine 104.
[0026] The bottom end of the first stretchable drive machine 103 and the second stretchable drive machine 104 is fixedly connected with a detection workbench 1, the top end of the detection workbench 1 is fixedly installed with a data display screen 101, and the top end of the detection workbench 1 is fixedly installed with a control button 102.
[0027] The inner ring side wall of the cross sliding groove 310 is movably connected with the outer ring side wall of the cross sliding bar 301.
[0028] The working principle of the utility model is: when in use, first, the shrink film is fixed, the shrink film is inserted into the gap of the first sliding rod 201, the first oval clamping block 304 and the second annular clamping piece 306 and the second oval clamping block 307, the staff manually pulls the pull handle 303 to fix the shrink film, when the pull handle 303 is pulled, the third sliding rod 3 on the side of the pull handle 303 is fixed to rotate, the first oval clamping block 304 fixedly connected with the outer ring side wall of the third sliding rod 3 also rotates, the second oval clamping block 307 is also synchronously rotated under the influence of the cross sliding bar 301, when the first oval clamping block 304 and the second oval clamping block 307 rotate and contact the recess of the first annular clamping piece 203 and the second annular clamping piece 306, the first rolling clamping wheel 305 and the second clamping roller 311 movably connected with the top end of the first oval clamping block 304 and the second oval clamping block 307 are opened in the inner ring side wall of the clamping wheel sliding groove 308 to rotate, the first rolling clamping wheel 305 and the second clamping roller 311 contact the recess of the first annular clamping piece 203 and the second annular clamping piece 306 to fix the shrink film, when it is needed to adjust to fix the shrink film of different sizes, the first annular clamping piece 203, the first oval clamping block 304, the second annular clamping piece 306 and the second oval clamping block 307 are manually slid on the outer ring side wall of the first sliding rod 201 and the second sliding rod 202 to adjust.
[0029] The above only describes preferred embodiments of the utility model and is not used for limiting the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A heat shrink film tensile strength testing apparatus comprising a fixed back plate (2), characterised in that: The side of the fixed back plate (2) is fixedly connected with a first sliding rod (201), the side of the fixed back plate (2) is fixedly connected with a second sliding rod (202), the side of the fixed back plate (2) is fixedly connected with a third fixed block (204), the side of the fixed back plate (2) is provided with a first movable hole (205), the outer wall of the first sliding rod (201) and the second sliding rod (202) is movably connected with a first annular clamping piece (203), the outer wall of the first sliding rod (201) and the second sliding rod (202) is movably connected with a second annular clamping piece (306), the outer wall of the first movable hole (205) is movably connected with a third sliding rod (3), the outer wall of the third sliding rod (3) is fixedly connected with a cross sliding bar (301), the outer wall of the third sliding rod (3) is fixedly connected with a first elliptical clamping block (304), the outer wall of the cross sliding bar (301) is movably connected with a second elliptical clamping block (307), the side of the second elliptical clamping block (307) is provided with a cross sliding groove (310), the top end of the second elliptical clamping block (307) is provided with a clamping wheel sliding groove (308), the inner wall of the clamping wheel sliding groove (308) is provided with a second movable hole (309), the inner wall of the second movable hole (309) is movably connected with a second clamping wheel (311), the top end of the first elliptical clamping block (304) is movably connected with a first rolling clamping wheel (305).
2. The heat shrinkable film tensile strength testing apparatus of claim 1, wherein: The side of the third sliding rod (3) is fixedly connected with a pulling handle (303), and the outer wall of the third sliding rod (3) is fixedly connected with a limiting fixed ring (302).
3. The heat shrinkable film tensile strength testing apparatus of claim 1, wherein: The side of the fixed back plate (2) is fixedly connected with a first fixed block (105), and the side of the fixed back plate (2) is fixedly connected with a second fixed block (106).
4. The heat shrinkable film tensile strength testing apparatus of claim 3, wherein: The bottom end of the first fixed block (105) is fixedly connected with a first stretching and retracting drive machine (103), and the bottom end of the second fixed block (106) is fixedly connected with a second stretching and retracting drive machine (104).
5. A heat shrinkable film tensile strength testing apparatus as defined in claim 4, wherein: The bottom end of the first stretching and retracting drive machine (103) and the second stretching and retracting drive machine (104) is fixedly connected with a detection workbench (1), the top end of the detection workbench (1) is fixedly installed with a data display screen (101), and the top end of the detection workbench (1) is fixedly installed with a control button (102).
6. The heat shrinkable film tensile strength testing apparatus of claim 1, wherein: The inner wall of the cross sliding groove (310) is movably connected with the outer wall of the cross sliding bar (301).