Interlayer binding force testing device

Abstract

The utility model relates to the technical field of sanitary material detection equipment, in particular to an interlayer binding force testing device which comprises a seat body provided with a lower table top and an upper table top, and a lower fixing disc is fixedly connected with the lower table top; the lifting mechanism is mounted on the upper table top; the upper fixing disc is connected with the lifting mechanism through the tension display mechanism; the lifting mechanism is used for driving the upper fixing disc to lift the upper layer of the laminate, so that the upper layer of the laminate is separated from the lower layer of the laminate, and the tension display mechanism is used for displaying a tension value. The sample placing box is simple and convenient in sample placing and operation, and can be used conveniently and quickly. Besides, the upper bonding disc and the lower bonding disc are bonded with the upper layer and the lower layer of the laminated object, the operation is simple and convenient, and the upper bonding disc and the lower bonding disc which are matched with the laminated object in shape can be selected, so that the laminated object detection device is suitable for detecting laminated objects with various shapes and structures.

Description

TECHNICAL FIELD

[0001] The utility model relates to sanitary material detection equipment technical field, concretely relates to an interlayer bonding force testing device. BACKGROUND

[0002] In the field of sanitary materials, especially multi-layer deep processing products are made by post-composite processing technology, and the interlayer bonding force of the multi-layer composite material needs to be considered during use to meet the consumer's use requirements. Therefore, the production and manufacturing enterprises of the products need to test the interlayer bonding force of the multi-layer composite product.

[0003] The existing test scheme is to simulate testing by a tensile peeling device to detect whether the product meets the standard of peeling force test in the national standard. However, such a tensile peeling device needs a certain time and technical requirements for sampling and testing operation, which is not conducive to continuous production and affects the improvement of production efficiency. In addition, such a tensile peeling device has a complex structure and high cost, which is not conducive to the low-cost detection of various multi-layer composite materials by the production and manufacturing enterprises. TECHNICAL SOLUTION

[0004] To solve the above problems, the purpose of the utility model is to provide an interlayer bonding force testing device.

[0005] The technical scheme provided by the utility model is:

[0006] In a first aspect, an interlayer bonding force testing device is used to test the interlayer bonding force of a laminate, comprising:

[0007] A seat body is provided with a lower table surface and an upper table surface;

[0008] A lower fixed disc is fixedly connected with the lower table surface, and the lower fixed disc is used to connect with the lower layer of the laminate to be tested;

[0009] A lifting mechanism is installed on the upper table surface;

[0010] An upper fixed disc is connected with the lifting mechanism through a tension display mechanism, the upper fixed disc corresponds to the lower fixed disc, and the upper fixed disc is used to connect with the upper layer of the laminate to be tested;

[0011] The lifting mechanism is used to drive the upper fixed disc to lift the upper layer of the laminate, so that the upper layer of the laminate is separated from the lower layer of the laminate, and the tension display mechanism is used to display the tension value.

[0012] As an optional technical scheme of the first aspect, the upper fixed disc and the lower fixed disc are respectively provided with an upper adhesive disc and a lower adhesive disc; the upper adhesive disc and the lower adhesive disc are respectively provided with an upper acting surface and a lower acting surface, and the upper acting surface and the lower acting surface are adhered with the upper layer of the laminate and the lower layer of the laminate.

[0013] Optionally, the upper action surface and the lower action surface are coincident in the vertical direction to more than or equal to 95%, and the projected area of the upper action surface and the lower action surface in the vertical direction is less than or equal to the projected area of the laminate in the vertical direction.

[0014] Optionally, the upper action surface and the lower action surface are hemispherical or wavy or planar.

[0015] Further, the upper action surface and the lower action surface are circular planar, with a diameter of 10 n mm, where n is a positive integer.

[0016] Optionally, the upper action surface and the lower action surface have equal areas, or one is larger than the other.

[0017] Optionally, the upper action surface and the lower action surface are provided with Velcro or glue, and are bonded to the laminate through the Velcro or glue.

[0018] Optionally, the lower end surface of the seat body is provided with an adjusting base, which is used to adjust the height of the seat body, so that the upper action surface and the lower action surface are kept horizontal.

[0019] As an optional technical solution of the first aspect, a directional mechanism is further included, which is installed on the upper table surface and is used to limit the vertical linear motion of the upper fixed disc and the tension display mechanism.

[0020] Optionally, the lifting mechanism is a manual lifting or an electric lifting or a pneumatic lifting; the lifting mechanism can set the lifting height and / or the lifting tension.

[0021] Further, the lifting mechanism is a manual lifting, and the lifting mechanism includes a handle, which is connected to the tension display mechanism through a connecting rod; the upper table surface is provided with a through hole through which the connecting rod passes; the directional mechanism includes a guide block provided on the outer wall of the connecting rod, and the hole wall of the through hole is provided with a guide groove for vertical movement of the guide block.

[0022] Compared with the prior art, the technical solution has the following beneficial effects:

[0023] The interlayer bonding force testing device provided by this utility model features a lower fixing plate fixedly connected to a base. The lower fixing plate supports and fixes the laminate to be tested, while the upper fixing plate connects to the upper layer of the laminate. A lifting mechanism pulls the upper fixing plate, thereby peeling the upper and lower layers of the laminate. The tensile force during peeling is displayed by a tensile force display mechanism. This interlayer bonding force testing device is simple to use, both in sample placement and operation. Its simple structure makes it possible for manufacturers of multilayer composite materials in hygiene products to manufacture this testing device for product testing. Furthermore, this utility model uses upper and lower bonding plates to bond the upper and lower layers of the laminate, simplifying operation. The upper and lower bonding plates can be selected to match the shape of the laminate, making it suitable for testing laminates of various shapes and structures. Attached Figure Description

[0024] Figure 1 This is a perspective view of the test device in one embodiment of this application;

[0025] Figure 2 This is a side view of the test device in one embodiment of this application;

[0026] Figure 3 This is a front view of the test apparatus in one embodiment of this application;

[0027] Figure 4 for Figure 3 Sectional view along line AA.

[0028] Explanation of the labels in the diagram:

[0029] 101 base, 101-1 lower table, 101-2 upper table, 102 adjustable base; 201 upper layer of laminate, 202 lower layer of laminate, 301 lower fixing plate, 302 lower bonding plate, 303 upper fixing plate, 304 upper bonding plate, 305 tension display mechanism, 306 handle, 307 connecting rod, 308 guide block, 309 guide groove. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0031] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0032] In one embodiment, this application proposes an interlayer bonding strength testing device, which can be used to test the interlayer bonding strength of a laminate. The laminate can be a multilayer composite material formed by laminating multiple layers of nonwoven fabric with adhesive or by pressing. It should be noted that each layer of material is not limited to nonwoven fabric. Other materials that can be used for the surface and inner layers of sanitary products can also be used to make such laminates.

[0033] The interlayer bonding force testing device includes a base 101. The material of the base 101 is not limited; it can be made of metal or plastic. It needs to have a certain structural strength, that is, the lifting mechanism pulls the upper fixed plate to move vertically so that the base 101 will not deform when the upper and lower layers of the laminate are peeled off.

[0034] like Figure 1 , 2 As shown in Figure 4, to facilitate user operation (such as loading and unloading the laminate to be tested), the base 101 is roughly C-shaped. The base 101 has a lower platform 101-1 and an upper platform 101-2. The left and right sides of the base 101, as well as the side facing the operator, are open structures, which facilitates the user's observation of the laminate peeling process and the tensile force value displayed by the tensile force display mechanism 305. It also facilitates the user's loading and unloading of the laminate to be tested and the operation of the lifting mechanism. It should be noted that the structure of the base 101 is not limited to the shape shown in the figure; other shapes that facilitate observation and operation are also acceptable.

[0035] The lower fixing plate 301 is fixedly connected to the lower platform 101-1, and the lower fixing plate 301 can be connected to the lower layer 202 of the laminate to be tested. The laminate to be tested is placed on the lower fixing plate 301, so that the lower layer 202 of the laminate is connected to the lower fixing plate 301. At this time, the lower fixing plate 301 not only serves to fix the laminate, but also supports the laminate, thereby facilitating the subsequent peeling of the laminate.

[0036] The pulling mechanism is installed on the upper platform 101-2 and is connected with the upper fixed disc 303 through the tension display mechanism 305. In an optional embodiment, the tension display mechanism 305 can be a tension gauge, and the pulling end of the tension gauge is connected with the upper fixed disc 303. The upper fixed disc 303 corresponds to the lower fixed disc 301, so that the upper fixed disc 303 can be connected with the upper layer of the laminated material to be detected.

[0037] When the laminated material is detected, the upper fixed disc 303 is vertically moved by slowly pulling the pulling mechanism, the upper layer 201 of the laminated material is pulled by the upper fixed disc 303 and moves away from the lower layer 202 of the laminated material, until the upper layer and the lower layer of the laminated material are completely separated. The value displayed by the tension display mechanism 305 is observed, and the average value is obtained by multiple measurements.

[0038] As an optional embodiment, the upper fixed disc 303 and the lower fixed disc 301 are respectively provided with the upper adhesive disc 304 and the lower adhesive disc 302. The upper adhesive disc 304 and the lower adhesive disc 302 can be respectively fixedly connected with the upper fixed disc 303 and the lower fixed disc 301, such as welding, adhesive bonding and the like. Alternatively, the upper adhesive disc 304 and the lower adhesive disc 302 can be respectively detachably connected with the upper fixed disc 303 and the lower fixed disc 301, such as bolt connection, buckle connection and the like.

[0039] The upper adhesive disc 304 and the lower adhesive disc 302 are respectively provided with upper and lower action surfaces, and are bonded with the upper layer 201 and the lower layer 202 of the laminated material through the upper and lower action surfaces. For the bonding mode of the action surface and the laminated material, magic tape or glue can be arranged on the upper and lower action surfaces, and the laminated material is bonded with the magic tape or glue. Through the bonding connection mode, the laminated material and the adhesive disc can be quickly connected together, thereby improving the detection speed.

[0040] Before the laminated material is detected, the projection area of the laminated material to be detected in the vertical direction is greater than the area of the upper and lower action surfaces in the vertical direction, that is, the projection area of the upper and lower action surfaces in the vertical direction is less than or equal to the projection area of the laminated material in the vertical direction. In this way, the upper and lower action surfaces can be completely bonded with the laminated material to be detected, which is beneficial to improve the accuracy of the detection result.

[0041] In order to improve the accuracy of the detection result, the force applied by the upper and lower action surfaces to the laminated material should be as much as possible in the same vertical direction, so as an optional solution, the coincidence degree of the upper and lower action surfaces in the vertical direction is greater than or equal to 95%. The higher the coincidence degree of the upper and lower action surfaces in the vertical direction, the more accurately the force applied to the laminated material during peeling can be displayed by the tension display mechanism 305.

[0042] The area of the upper action surface can be equal to or different from the area of the lower action surface, i.e. one of the areas is larger than the other. When the areas of the upper and lower action surfaces are different, the projection of one of the action surfaces can completely fall into the projection of the other action surface, which represents a higher degree of coincidence of the two action surfaces.

[0043] As an optional embodiment, the upper and lower adhesive discs 304, 302 can be selected according to the structure and shape of the laminate, and different upper and lower adhesive discs 304, 302 are provided with different shapes of upper and lower action surfaces, such as hemispherical curved surfaces or wavy curved surfaces or flat surfaces. Preferably, the upper and lower action surfaces are circular flat surfaces with a diameter of 10 n mm, where n is a positive integer, such as 1, 2, 3, etc., in which case the diameter of the circular flat surface is 10 mm, or 100 mm, etc., which facilitates the determination of the unit area and thus the calculation.

[0044] During the detection, the peeling force obtained by the detection is more accurate when the upper and lower action surfaces are kept horizontal. In order to make the seat body 101 suitable for different placement positions, an adjusting base 102 is installed at the lower end surface of the seat body 101, and the height of the seat body 101 can be adjusted by the adjusting base 102 to keep the upper and lower action surfaces horizontal. The structure of the adjusting base 102 can be a combination of a bolt and a bottom corner, and the height of the bottom corner can be adjusted by screwing the bolt, which is mature in the prior art and will not be described here. Other adjusting bases 102 that can achieve similar functions in the prior art can also be suitable for this test device.

[0045] In an alternative embodiment, the test device is also provided with a directional mechanism installed on the upper table surface 101-2, which limits the vertical linear motion of the upper fixed disc 303 and the tension display mechanism 305, thereby preventing the laminate under test from being twisted during the lifting process.

[0046] When the lifting mechanism is a manual lifting, as shown in Figures 1-4 the lifting mechanism includes a handle 306 connected to the tension display mechanism 305 through a connecting rod 307. The user needs to hold the handle 306 and slowly pull it upwards until the upper and lower layers of the laminate are separated.

[0047] The lifting mechanism can also be an electric or pneumatic lifting (not shown in the figure), i.e. the lifting mechanism uses pneumatic or electric power as the power source, such as a pneumatic or electric pull rod, a linear module, etc. to pull the upper fixed disc 303. This specific structure is mature in the prior art and will not be described here.

[0048] By setting the traction stroke, the lifting height and / or the lifting tension can be set through the lifting mechanism.

[0049] For the structure of the orientation mechanism, the upper table 101-2 is provided with a through hole through which the connecting rod 307 passes. The orientation mechanism comprises a guide block 308 arranged on the outer wall of the connecting rod 307, and the hole wall of the through hole is provided with a guide groove 309 for vertical movement of the guide block 308. When the connecting rod 307 is driven to move vertically, the guide block 308 moves vertically in the guide groove 309, and the guide groove 309 limits the guide block 208 to move vertically and cannot be offset laterally (or circumferentially), thereby avoiding the connecting rod 307 from driving the upper fixing disc 303 to twist, that is, the measured laminate can be prevented from twisting.

[0050] The above describes the utility model and its embodiments in a schematic manner, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which shall belong to the protection scope of the utility model.

Claims

1. A device for testing interlayer bonding strength, used to test the interlayer bonding strength of laminates, characterized in that, include: A seat (101) is provided with a lower platform (101-1) and an upper platform (101-2); The lower fixing plate (301) is fixedly connected to the lower platform (101-1) and is used to connect with the lower layer (202) of the laminate to be tested. A lifting mechanism is mounted on the upper platform (101-2); The upper fixing plate (303) is connected to the lifting mechanism through the tension display mechanism (305). The upper fixing plate corresponds to the lower fixing plate and is used to connect with the upper layer (201) of the laminate to be tested. The lifting mechanism is used to drive the upper fixed plate (303) to lift the upper layer (201) of the laminate, so that the upper layer (201) of the laminate is separated from the lower layer (202) of the laminate, and the tension display mechanism (305) is used to display the tension value.

2. The interlayer bonding force testing device according to claim 1, characterized in that: The upper fixing plate (303) and the lower fixing plate (301) are respectively equipped with an upper bonding plate (304) and a lower bonding plate (302); the upper bonding plate (304) and the lower bonding plate (302) are respectively provided with an upper working surface and a lower working surface, and are bonded to the upper layer (201) and the lower layer (202) of the laminate through the upper working surface and the lower working surface.

3. The interlayer bonding force testing device according to claim 2, characterized in that: The overlap of the upper and lower action surfaces in the vertical direction is greater than or equal to 95%, and the projected area of ​​the upper and lower action surfaces in the vertical direction is less than or equal to the projected area of ​​the laminate in the vertical direction.

4. The interlayer bonding force testing device according to claim 2, characterized in that: The upper and lower action surfaces are hemispherical surfaces, wavy surfaces, or planes.

5. The interlayer bonding force testing device according to claim 2, characterized in that: The areas of the upper and lower acting surfaces are equal, or one of them has a larger area than the other.

6. The interlayer bonding force testing device according to claim 2, characterized in that: Hook and loop fasteners or adhesive are applied to the upper and lower working surfaces to bond them to the laminate.

7. The interlayer bonding force testing device according to claim 4, characterized in that: The upper and lower action surfaces are circular planes with a diameter of 10. n mm, where n is a positive integer.

8. The interlayer bonding strength testing device according to any one of claims 2-7, characterized in that: An adjusting base (102) is installed on the lower end face of the seat (101). The adjusting base (102) is used to adjust the height of the seat (101) so that the upper working surface and the lower working surface are kept horizontal.

9. The interlayer bonding force testing device according to claim 1, characterized in that: It also includes a directional mechanism, which is installed on the upper platform (101-2). The directional mechanism is used to limit the upper fixed plate (303) and the tension display mechanism (305) to only perform vertical linear motion.

10. The interlayer bonding force testing device according to claim 9, characterized in that: The lifting mechanism can be manual, electric, or pneumatic. The lifting mechanism can be set with lifting height and / or lifting force.

Images