Packaging material flexibility testing apparatus and packaging material flexibility testing method

Abstract

The present application relates to the technical field of testing, and is named as a packaging material flexibility testing device and a packaging material flexibility testing method. The packaging material flexibility testing device comprises a device frame, a plurality of motor-driven rollers are installed on the device frame, and a closed-loop conveying belt is installed on the rollers. The conveying belt comprises an inner layer belt and an outer layer belt, the inner layer belt and the outer layer belt are connected through side portions, and a gap is formed between the inner layer belt and the outer layer belt. The gap is used for placing the packaging material, and the gap is provided with a side opening. The packaging material flexibility testing method is as follows: the packaging material is placed in the gap of the conveying belt, the conveying belt runs in a bending route, the packaging material is continuously bent in the running of the conveying belt, and the standing performance of the packaging material after bending is tested after multiple bending. The present application has the advantages of being capable of testing the flexibility of the packaging material and being convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing, in particular to a packaging material flexibility testing device and a packaging material flexibility testing method. BACKGROUND

[0002] The flexibility of packaging material (also known as packaging material board) is an important indicator of packaging material. The flexibility refers to the performance of the packaging material in maintaining straightness under repeated bending.

[0003] In the patent document with publication number "CN216012973U" and the name "Tension testing device for packaging material production", a tension testing device for packaging material production is disclosed, which can detect some indicators of packaging bags. There is no special device in the prior art for testing the flexibility of packaging material, which has the disadvantage of inconvenient use. SUMMARY

[0004] The purpose of the present application is to overcome the above-mentioned shortcomings, and to provide a packaging material flexibility testing device and a packaging material flexibility testing method which can test the flexibility of packaging material and are convenient to use.

[0005] The technical scheme of the packaging material flexibility testing device of the present application is as follows: a packaging material flexibility testing device, characterized by: comprising a device frame, a plurality of motor-driven rollers are installed on the device frame, and a closed-loop conveyor belt is installed on the rollers, the conveyor belt comprises an inner belt and an outer belt, the inner belt and the outer belt are connected by side portions, and there is a gap between the inner belt and the outer belt, the gap is the gap for placing the packaging material, and the gap has a side opening outside.

[0006] Further, the side opening has a structure of narrowing.

[0007] Further, the device frame also has a guide wheel, the guide wheel contacts the outer belt of the conveyor belt, and the guide wheel makes the conveyor belt form a concave polygonal structure.

[0008] Further, the inner belt and / or the outer belt have a window, and a roller brush is installed on the device frame, the roller brush has bristles around it, when the window passes through the bristles, the outer end of the bristles extends into the gap, and can rub the side of the packaging material installed in the gap.

[0009] Further, the device frame has notches, which are roller notches, the rollers have roller shaft cores, and the roller shaft cores are installed in the roller notches.

[0010] Further, the device frame has notches, which are roller brush notches, and the roller brush has a roller brush core, which is installed in the roller brush notches.

[0011] Further, the device frame has a metering component, which is a counter or a meter, and the metering component has a metering end, which faces the conveying belt.

[0012] Further, the device frame has a chamber, in which the roller is installed, and the chamber has a dust suction chamber on the side, and a dust suction duct is connected to the dust suction chamber, and a filter bag is installed in the dust suction chamber.

[0013] Further, the device frame has a chamber, in which a heating component and a temperature measuring component are installed.

[0014] Further, the heating component and the temperature measuring component are further connected to a control device.

[0015] Further, a humidifying device is installed on the device frame, and the humidifying device has a moisture outlet, which is opened in the chamber, and a humidity testing device is further installed in the chamber.

[0016] The technical scheme of the packaging material flexibility testing method is as follows: the packaging material flexibility testing method is that the packaging material is placed in the interlayer of the conveying belt, and the conveying belt runs in a bending route, and the packaging material is continuously bent in the running of the conveying belt, and the standing performance of the packaging material after bending is tested after multiple bending.

[0017] Further, the bending of the packaging material includes forward bending and reverse bending.

[0018] Further, the bending of the packaging material is bending at a certain temperature.

[0019] The packaging material flexibility testing device and the packaging material flexibility testing method have the advantages of being capable of testing the flexibility of the packaging material and being convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a side structure schematic view of the present application.

[0021] Figure 2 is Figure 1 A-A direction cross-sectional view in

[0022] Figure 3 is a structure schematic view of the outside of the conveying belt.

[0023] Figure 4 is the structure diagram of the inside of the conveying belt.

[0024] Figure 5 is the structure diagram of the device frame of the present application.

[0025] Figure 6 is Figure 1 is the section view of the B-B direction in

[0026] Figure 7 is the diagram of the positive bending and reverse bending of the packaging material.

[0027] Figure 8 is the diagram of the working of the roller or guide wheel.

[0028] In the figure: 1, device frame 2, roller 3, conveying belt 31, inner layer belt 32, outer layer belt 33, side part 34, gap 35, side opening 36, window 4, guide wheel 5, roller brush 51, brush hair 61, roller notch 62, roller brush notch 7, metering part 8, chamber 9, dust suction chamber 92, dust suction pipeline 93, dust suction bag 10, heating part 11, temperature measuring part 12, humidifying device 121, moisture outlet 13, humidity testing device 14, glass 15, irradiation lamp 100, packaging material. DETAILED DESCRIPTION

[0029] The present application will be further described in conjunction with the accompanying drawings.

[0030] As Figure 1 , 2 shown, a packaging material flexibility testing device is characterized by comprising a device frame 1, a plurality of rollers 2 driven by electric motors are installed on the device frame, and a closed-loop conveying belt 3 is installed on the rollers, the conveying belt comprises an inner layer belt 31 and an outer layer belt 32, the inner layer belt and the outer layer belt are connected by a side part 33, and the inner layer belt and the outer layer belt have a gap 34 therebetween, the gap is a gap for placing the packaging material 100, and the gap has a side opening 35 outside.

[0031] In principle, when the present application is used, the packaging material is placed in the gap, the device frame is started, the electric motor drives the conveying belt to run, and the packaging material runs continuously. During the running of the packaging material, the path of the conveying belt is not straight, and the packaging material will be continuously bent. After a period of time, the packaging material is taken out of the gap, the stiffness performance of the packaging material at this time, such as the bending resistance, is measured, and the flexibility of the packaging material can be known. The present application is thus arranged, which has the advantages of simple structure and convenient use.

[0032] Further, the side opening has a structure of narrowing.

[0033] The present application has the advantage of reducing the running out of packaging materials.

[0034] Further, the device frame has guide wheels 4, which contact the outer belt of the conveying belt, and make the conveying belt form a concave polygonal structure.

[0035] The present application has the advantage of realizing the reverse bending of the packaging materials during the running of the conveying belt, the forward bending being shown in the left side of the figure, Figure 7 and the reverse bending being shown in the right side of the figure, Figure 7 i.e. the packaging materials can be forwardly and reversely bent during the running, and the test is more comprehensive.

[0036] Further, as shown in the figure, Figure 3 , 4 the inner belt and / or the outer belt has windows 36, and the device frame is provided with roller brushes 5, which have peripheral bristles 51, and when the windows pass through the bristles, the outer ends of the bristles enter the gap and can rub the side of the packaging materials installed in the gap.

[0037] The present application has the advantage of realizing the continuous rubbing of the side of the packaging materials by the roller brushes during the running of the packaging materials, and testing the scratch resistance and wear resistance of the packaging materials.

[0038] Further, as shown in the figure, Figure 5 the device frame has grooves, which are roller grooves 61, and the rollers have roller cores, which are installed in the roller grooves.

[0039] Further, the device frame has grooves, which are roller brush grooves 62, and the roller brushes have roller brush cores, which are installed in the roller brush grooves.

[0040] The present application has the advantage of realizing the change of the position of the rollers (or the roller brushes), i.e. changing the running path of the conveying belt, and changing the bending strength of the packaging materials, and testing the toughness of the packaging materials under different bending strengths.

[0041] Further, the device frame has a metering component 7, which is a counter or a meter, and has a metering end, which faces the conveying belt.

[0042] The present application has the advantage of realizing the test of the running path of the conveying belt, such as the length or the number of rounds of the conveying belt, and combining the test results with the measured toughness of the packaging materials, and obtaining more accurate values.

[0043] Further, as shown in the drawings, there is a small chamber 8 on the device frame, and the roller is installed in the small chamber. Figure 6 Further, the side of the small chamber has a dust suction chamber 9, and a dust suction pipe 92 is connected to the dust suction chamber, and a dust suction bag 93 made of filter screen is installed in the dust suction chamber.

[0044] With the above arrangement, the powder formed by the packaging material during operation can be tested; for example, the fine powder formed by the folding (operation) of the packaging material and falling off is collected in the dust suction bag, and after a period of time, the weight is collected to understand the folding loss performance of the packaging material.

[0045] Further, the bottom of the small chamber is paved with a layer of glass 14, and an irradiation lamp 15 is below the glass.

[0046] With the above arrangement, the degree (more or less) of fine powder formed by the folding (or rubbing) of the packaging material can be judged by observing the clarity of the light emitted by the irradiation lamp passing through the glass, so as to judge the wear resistance (debris performance in rubbing) of the packaging material.

[0047] Alternatively, the bottom of the small chamber is paved with a mirror, and an irradiation lamp is above the mirror.

[0048] With the above arrangement, the degree (more or less) of fine powder formed by the folding (or rubbing) of the packaging material can be judged by observing the clarity of the light emitted by the irradiation lamp reflected by the mirror, so as to judge the wear resistance (debris performance in rubbing) of the packaging material.

[0049] Further, there is a small chamber on the device frame, and a heating component 10 and a temperature measuring component 11 are installed in the small chamber.

[0050] With the above arrangement, the toughness of the packaging material at a certain temperature can also be tested.

[0051] Further, the heating component and the temperature measuring component are also connected with a control device.

[0052] Further, a humidifying device 12 is installed on the device frame, the humidifying device has a moisture outlet 121, the moisture outlet is opened in the small chamber, and a humidity testing device 13 is also installed in the small chamber.

[0053] With the above arrangement, the toughness of the packaging material at a certain humidity can also be tested.

[0054] Further, in an embodiment, the roller and / or the guide wheel is a spherical structure or a structure with a fold line type outer periphery, as shown in the drawings. Figure 8The conveying belt is made of rubber, and the packaging material can be bent in the longitudinal direction and the transverse direction.

[0055] The packaging material flexibility testing method comprises the following steps: placing the packaging material in the interlayer of the conveying belt, and making the conveying belt run in the bending route.

[0056] Further, the bending of the packaging material comprises forward bending and reverse bending.

[0057] Further, the bending of the packaging material is carried out at a certain temperature.

[0058] Further, the bending of the packaging material is carried out at a certain humidity.

[0059] Further, the packaging material flexibility testing method is carried out by using the packaging material flexibility testing device.

[0060] Further, the side surface of the packaging material is rubbed during the continuous bending of the packaging material, so as to test the wear resistance of the packaging material.

[0061] Further, the wear resistance of the packaging material is tested by collecting the fine particles scattered during the rubbing of the packaging material.

[0062] In one embodiment, the packaging material flexibility testing method uses the packaging material flexibility testing device.

[0063] Further, in the packaging material flexibility testing method, the fine particles generated during the rubbing of the packaging material are collected by using glass, and the amount of the fine particles is determined according to the light transmittance of the glass, so as to further determine the wear resistance of the packaging material.

[0064] Further, in the packaging material flexibility testing method, the fine particles generated during the rubbing of the packaging material are collected by using a mirror, and the amount of the fine particles is determined according to the cleaning degree of the emitted light of the mirror, so as to further determine the wear resistance of the packaging material.

[0065] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the specification of the present application.

Claims

1. A packaging material flexibility testing device, characterized in that: The device includes a frame on which multiple motor-driven rollers are mounted, and a closed-loop conveyor belt mounted on the rollers. The conveyor belt includes an inner belt and an outer belt, which are connected by a side section. There is a gap between the inner and outer belts, which is a gap for placing packaging materials. The gap has a side opening on the outside. The frame also includes a small chamber, in which the rollers are mounted. The bottom surface of the chamber is covered with a layer of glass, and there are illumination lamps below the glass. The device frame also has guide wheels, which contact the outer layer of the conveyor belt and cause the conveyor belt to form a concave polygonal structure. The inner and / or outer strips have windows, and a roller brush is also mounted on the device frame. The roller brush has bristles around its perimeter. When the window passes the bristles, the outer ends of the bristles extend into the gap and can rub the side of the packaging material installed in the gap.

2. The packaging material flexibility testing device according to claim 1, characterized in that: The side opening has a tapered structure.

3. The packaging material flexibility testing device according to claim 1 or 2, characterized in that: The device frame has slots for rollers, each roller having a roller shaft core installed in one of the slots. The device frame also has slots for brushes, each brush having a brush shaft core installed in one of the slots. A metering component, a counter or meter reader, is also mounted on the device frame. This metering component has a metering end facing the conveyor belt. A dust collection chamber is located on the side of the small chamber, connected to a dust collection pipe. A dust collection bag made of a filter screen is installed inside the dust collection chamber.

4. Packaging material flexibility testing method: The packaging material flexibility testing device according to any one of claims 1-3 is used; the packaging material is placed in the interlayer of a conveyor belt, which runs along a bending path. During the movement of the conveyor belt, the packaging material is continuously bent, and the straightness performance of the packaging material after multiple bends is tested; the bending of the packaging material includes forward bending and reverse bending; the bending of the packaging material is performed at a certain temperature; in the packaging material flexibility testing method, glass is used to collect the fine debris generated when the packaging material rubs, and the amount of fine debris generated is judged based on the light transmittance of the glass, further judging the abrasion resistance of the packaging material.

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