Tensile testing device for processing wrapping film

Abstract

The utility model relates to the technical field of wrapping film testing, and discloses a tensile testing device for wrapping film processing, which comprises a test board, a tensile component is arranged at the top of the test board, a width adjusting component is arranged in the tensile component, two connecting blocks are arranged on the side surface of the tensile component, and the width adjusting component is arranged in the width adjusting component. Clamping assemblies are arranged on the side surfaces of the two connecting blocks; the clamping assembly comprises an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block are connected to the side face of the connecting block in a sliding mode, and rubber clamping plates are fixedly connected to the inner side of the upper clamping block and the inner side of the lower clamping block. According to the utility model, under the cooperation of the bidirectional threaded rod and the threaded groove, the rubber clamping plates of the upper clamping block and the lower clamping block are controlled to clamp the wrapping film, and then the wrapping film is rolled up to the upper clamping block, so that the contact area and friction force between the wrapping film and the clamping assembly are enhanced, and the situation that the detection result is inaccurate due to the fact that the two sides of the wrapping film are easy to tear is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to winding film test technical field especially relates to be used for winding film processing's tensile test device. BACKGROUND

[0002] In the modern logistics and product packaging field, the application of winding film is very wide, it is mainly used for closely wrapping goods, plays dustproof, moistureproof, fixed effect, along with the rapid development of logistics industry, the performance requirement of winding film is also higher and higher, for example, when packing large, heavy goods, winding film needs to have higher tensile strength to bear the weight of goods and not to break in the stretching process, ensures the packaging quality of goods, and the tensile test can detect whether the quality of winding film meets the demand.

[0003] The winding film tensile test device is mainly composed of a base, a stretching system, a clamp and a control system, and the working principle is to fix the winding film sample on the clamp, then control the stretching system to apply stretching force to the sample through the control system, measure the stretching force and elongation, and process and analyze the obtained data.

[0004] The existing winding film tensile test device usually uses a clamp to fix the two side edges of the winding film, but the cut edges will reduce the strength of the winding film during testing, and are easy to tear during tensile testing, which has the disadvantages of not convenient for lossless fixing of the winding film during tensile testing, and inaccurate detection results, therefore, the tensile test device for winding film processing is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a tensile test device for winding film processing, aiming at improving the problem that only the two sides of the winding film are clamped in the prior art, which is easy to tear during tensile testing, resulting in inaccurate detection results.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The tensile test device for winding film processing comprises a test table, a stretching assembly is arranged on the top of the test table, a width adjusting assembly is arranged in the stretching assembly, two connecting blocks are arranged on the side surface of the stretching assembly, and clamping assemblies are arranged on the side surface of the two connecting blocks; the clamping assembly comprises an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block are slidably connected to the side surface of the connecting block, rubber clamping plates are fixedly connected to the inner side of the upper clamping block and the lower clamping block, screw grooves are formed in the interior of the upper clamping block and the lower clamping block, and bidirectional threaded rods are arranged in the interior of the upper clamping block and the lower clamping block and are screw-connected in the screw grooves;

[0008] As a further description of the above technical solutions:

[0009] The stretching assembly comprises a cylinder arranged on the top of the test table, and an output end of the cylinder is fixedly connected with a protective shell; the top of the test table is fixedly connected with a protective shell;

[0010] As a further description of the above technical solutions:

[0011] The width adjusting assembly comprises a sliding block fixedly connected to the side of the protective shell, the sliding block is slidingly connected to the inside of the connecting block, the side of the connecting block is fixedly connected with a sliding rod and a rack, and the sliding rod and the rack are slidingly connected to the inside of the protective shell;

[0012] As a further description of the above technical solutions:

[0013] The side of the protective shell is provided with two width adjusting assemblies, the sliding rod of one of the width adjusting assemblies is slidingly connected to the inside of the rack of the other width adjusting assembly;

[0014] As a further description of the above technical solutions:

[0015] The inside of the protective shell is rotatably connected with a gear, and the rack and the gear are in meshing connection;

[0016] As a further description of the above technical solutions:

[0017] The side of one of the upper clamping blocks and the lower clamping block is fixedly connected with a sliding column, and the sliding column is slidingly connected to the inside of the other upper clamping block and the lower clamping block;

[0018] As a further description of the above technical solutions:

[0019] The front side of the gear is fixedly connected with a rotating block;

[0020] As a further description of the above technical solutions:

[0021] The top of the test table is provided with a control panel.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、The utility model discloses a rotating bidirectional screw rod controls the inward movement of the upper clamping block and the lower clamping block, clamps one end of the wrapping film on the rubber clamping plate, and then the wrapping film is wound on the upper clamping block, the contact area and friction force of the upper clamping block with the wrapping film are increased, and the problem that the wrapping film is easily torn on both sides and the detection result is inaccurate is avoided.

[0024] 2. The utility model discloses a rotate block drive gear rotation, control sliding rod and rack moving connecting block, adjust two clamping assembly spacing, make it adapt to the width of the winding film to be measured, enhance the compatibility of this stretch testing device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the three -dimensional schematic view that the utility model proposes for winding film processing's stretch testing device;

[0026] Figure 2 It is the structure schematic view that the utility model proposes for winding film processing's stretch testing device's clamping assembly;

[0027] Figure 3 It is the cross section schematic view that the utility model proposes for winding film processing's stretch testing device's width adjusting assembly;

[0028] Figure 4 It is the structure schematic view that the utility model proposes for winding film processing's stretch testing device's lower clamp block.

[0029] LEGEND:

[0030] 1, test table, 2, stretch assembly, 3, width adjusting assembly, 4, clamping assembly, 5, control panel, 6, air cylinder, 7, protective shell, 8, sliding block, 9, connecting block, 10, sliding rod, 11, rack, 12, gear, 13, rotating block, 14, upper clamp block, 15, lower clamp block, 16, sliding column, 17, rubber clamp plate, 18, thread groove, 19, two -way threaded rod. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] REFERENCE Figure 1 , Figure 3 and Figure 4The utility model provides a kind of embodiment for the stretching test device of winding film processing, including test table 1, the top of test table 1 is provided with stretching assembly 2, the inside of stretching assembly 2 is provided with width adjustment assembly 3, the side of stretching assembly 2 is provided with two connecting blocks 9, the side of two connecting blocks 9 is provided with clamping assembly 4;Clamping assembly 4 includes upper clamping block 14 and lower clamping block 15, upper clamping block 14 and lower clamping block 15 are slidably connected in the side of connecting block 9, the inside of upper clamping block 14 and lower clamping block 15 is fixedly connected with rubber clamp plate 17, use upper clamping block 14 and lower clamping block 15 to move rubber clamp plate 17, after clamping winding film, it is rolled to upper clamping block 14 upwards, increase friction by upper clamping block 14, avoid because winding film both sides intensity is low, influence detection result.The inside of upper clamping block 14 and lower clamping block 15 is all provided with screw groove 18, the inside of upper clamping block 14 and lower clamping block 15 is provided with bidirectional screw rod 19, bidirectional screw rod 19 is screw connected in screw groove 18, rotates bidirectional screw rod 19, controls the interval of upper clamping block 14 and lower clamping block 15.

[0033] Referring to Figures 1-3 Stretching assembly 2 includes cylinder 6, cylinder 6 is arranged at the top of test table 1, the output end of cylinder 6 is fixedly connected with a protective shell 7, the top of test table 1 is fixedly connected with a protective shell 7, start cylinder 6, pull the protective shell 7 and move.Width adjustment assembly 3 includes sliding block 8, sliding block 8 is fixedly connected in the side of protective shell 7, sliding block 8 is slidably connected in the inside of connecting block 9, connecting block 9 can slide in the side of protective shell 7.The side of connecting block 9 is fixedly connected with sliding rod 10 and rack 11, sliding rod 10 and rack 11 are slidably connected in the inside of protective shell 7, move sliding rod 10 and rack 11, so that connecting block 9 slides.The side of protective shell 7 is provided with two width adjustment assemblies 3, the sliding rod 10 of one of width adjustment assemblies 3 is slidably connected in the inside of the rack 11 of another width adjustment assembly 3, can increase the stability when rack 11 and sliding rod 10 slide.The inside of protective shell 7 is rotatably connected with gear 12, rack 11 and gear 12 are engaged with each other, move rack 11 by rotating gear 12.

[0034] Referring to Figure 1 And Figure 2 The side of one of upper clamping block 14 and lower clamping block 15 is fixedly connected with sliding column 16, sliding column 16 is slidably connected in the inside of another upper clamping block 14 and lower clamping block 15, to provide space for adjusting the interval of two clamping assemblies 4.The front side of gear 12 is fixedly connected with rotating block 13, drive gear 12 to rotate by rotating rotating block 13.The top of test table 1 is provided with control panel 5, control test device by control panel 5.

[0035] Working principle: by rotating the rotating block 13, with gear 12 rotation, control rack 11 and sliding rod 10 with connecting block 9 moves, adjust the distance between the two clamping assembly 4, adjust to the width of the winding film to be measured, put the winding film into the rubber clamp plate 17 on the back side of the upper clamp block 14 and lower clamp block 15, rotate the two-way threaded rod 19, through the cooperation of the threaded groove 18, move the upper clamp block 14 and lower clamp block 15 clamp winding film, after clamping is completed, the winding film is wound to the upper side of the upper clamp block 14, the other end of the winding film is put into the clamping assembly 4 on the left side of the test bench 1, start the air cylinder 6 through the control panel 5, pull the right clamping assembly 4, carry on the tensile test.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A tensile testing device for stretch film processing, comprising a test bench (1), characterized in that: A stretching assembly (2) is provided on the top of the test bench (1), a width adjustment assembly (3) is provided inside the stretching assembly (2), two connecting blocks (9) are provided on the side of the stretching assembly (2), and clamping assemblies (4) are provided on the sides of the two connecting blocks (9); The clamping assembly (4) comprises an upper clamping block (14) and a lower clamping block (15), wherein the upper clamping block (14) and the lower clamping block (15) are slidably connected to the side surface of the connecting block (9), the inner sides of the upper clamping block (14) and the lower clamping block (15) are fixedly connected with a rubber clamping plate (17), the interiors of the upper clamping block (14) and the lower clamping block (15) are provided with a threaded groove (18), the interiors of the upper clamping block (14) and the lower clamping block (15) are provided with a bidirectional threaded rod (19), and the bidirectional threaded rod (19) is threadedly connected to the threaded groove (18).

2. The tensile testing device for stretch film processing according to claim 1, characterized in that: The stretching assembly (2) comprises a cylinder (6), which is arranged on the top of the test bench (1), and the output end of the cylinder (6) is fixedly connected to a protective shell (7), and the top of the test bench (1) is fixedly connected to a protective shell (7).

3. The tensile testing device for stretch film processing according to claim 2, characterized in that: The width adjustment assembly (3) includes a sliding block (8), the sliding block (8) is fixedly connected to the side of the protective shell (7), the sliding block (8) is slidably connected to the inside of the connecting block (9), the side of the connecting block (9) is fixedly connected to a sliding rod (10) and a rack (11), and the sliding rod (10) and the rack (11) are slidably connected to the inside of the protective shell (7).

4. The tensile testing device for stretch film processing according to claim 3, characterized in that: Two width adjustment assemblies (3) are provided on the side of the protective shell (7), wherein the sliding rod (10) of one of the width adjustment assemblies (3) is slidably connected to the inside of the rack (11) of the other width adjustment assembly (3).

5. The tensile testing device for stretch film processing according to claim 3, characterized in that: The interior of the protective shell (7) is rotatably connected to a gear (12), and the rack (11) and the gear (12) are meshed with each other.

6. The tensile testing device for stretch film processing according to claim 1, characterized in that: The side surfaces of one of the upper clamping block (14) and the lower clamping block (15) are fixedly connected with a sliding column (16), and the sliding column (16) is slidably connected inside the other upper clamping block (14) and the lower clamping block (15).

7. The tensile testing device for stretch film processing according to claim 5, characterized in that: A rotating block (13) is fixedly connected to the front side of the gear (12).

8. The tensile testing device for stretch film processing according to claim 1, characterized in that: A control panel (5) is provided on the top of the test bench (1).

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