PP copper foil adhesive force testing device

Abstract

The utility model discloses a PP copper foil adhesive force testing device, and relates to the technical field of PP copper foil adhesive force testing. Comprising a placement unit, a detection unit, a traction unit and a display unit, the placing unit comprises a supporting column, a bearing supporting plate arranged at the top end of the supporting column, a rectangular groove formed in the top end of the bearing supporting plate and a pressing plate detachably arranged above the bearing supporting plate. A test notch matched with the rectangular groove is vertically formed in the pressing plate in a penetrating manner; the detection unit is used for measuring the peeling strength of the PP copper foil coating; the traction unit is used for separating the non-glued end of the PP copper foil test adhesive tape from the PP copper foil; and the display unit is used for displaying the stripping speed, the stripping time, the stripping distance and the plating layer stripping strength. According to the utility model, manual adhesive tape stripping is replaced by automatic adhesive tape stripping, so that the stability of stripping speed and stripping strength can be ensured, and the accuracy of a test result and the test efficiency are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PP copper foil adhesion testing, in particular to a PP copper foil adhesion testing device. Background Art

[0002] PP composite copper foil is a new type of current collector negative electrode material for power batteries, which has a "sandwich" sandwich structure and has the advantages of high energy density, low cost, high safety, and long life. In the field of pp composite copper foil, the adhesion of the pp composite copper foil coating is one of its most important indicators.

[0003] The main test method for testing the adhesion of the pp composite copper foil coating is the tape test method. In the tape test method, a test tape is firmly adhered to the surface of the pp copper foil, and there are no bubbles when the tape is close to the surface. Then, a pulling force is applied to the test tape attached to the surface of the pp copper foil at a certain angle. After pulling the test tape off the surface of the pp copper foil, the size of the adhesion is judged according to the peeling situation of the coating. The substrate of the test tape is generally polyester film or cellulose acetate, and the working surface is coated with an adhesive polymer. Whether the separation speed of the test tape and the pp copper foil is constant affects the test result of the pp copper foil coating adhesion. If the test speed fluctuates, it is easy to cause uneven peeling of the coating, seriously affecting the adhesion test result. In addition, different people use different forces and speeds, which will also affect the reproducibility of the detection results.

[0004] Therefore, the present invention provides a PP copper foil adhesion testing device to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a PP copper foil adhesion testing device, which uses automatic tape peeling instead of manual tape peeling, can ensure the stability of the peeling speed and peeling force, and thus improve the accuracy and test efficiency of the test results.

[0006] The purpose of the utility model is realized through the following technical solutions:

[0007] A PP copper foil adhesion testing device, comprising:

[0008] A placement unit, the placement unit includes a support column, a bearing tray arranged at the top of the support column, a rectangular groove arranged at the top of the bearing tray, and a pressing plate detachably arranged above the bearing tray; a test notch is vertically penetrated in the pressing plate;

[0009] A detection unit for measuring the peeling strength of the PP copper foil coating;

[0010] A traction unit for separating the non-bonded end of the pp copper foil test tape from the pp copper foil;

[0011] A display unit for displaying glass parameters such as peeling speed, peeling time, peeling distance, and coating peeling strength.

[0012] Preferably, the traction unit includes a chute provided on one side of the carrier tray, a traction motor provided in the chute, a lead screw connected to the output shaft of the traction motor, and a slide table slidably provided in the chute and threadedly sleeved on the lead screw; the detection unit is provided at the top of the slide table; one end of the lead screw away from the traction motor is rotatably connected to the inner wall of the chute.

[0013] Preferably, the detection unit includes an adhesion detection tensiometer provided at the top of the slide table, and a test tape chuck provided at one end of the adhesion detection tensiometer close to the carrier tray.

[0014] Preferably, the display unit includes a placement plate provided on one side of the carrier tray, a mounting groove provided at the top of the placement plate, and a display screen provided in the mounting groove.

[0015] Preferably, the test device further includes a programmable logic controller PLC, and the programmable logic controller is electrically connected to the traction motor, the adhesion detection tensiometer, and the display screen respectively.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By providing a carrier tray and a rectangular groove at the top of the carrier tray, it is convenient to place the PP copper foil to be tested; by providing a detachable pressing plate above the carrier tray, after the PP copper foil is placed in the rectangular groove, the PP copper foil can be pressed on the carrier tray to achieve the purpose of limiting the PP copper foil; by providing a traction unit, one end that adheres to the traction unit and is not adhesively bonded to the surface of the PP copper foil can be bent 180° and then moved at a constant speed, effectively overcoming the technical defects in the prior art that due to manual pulling, the coating peeling is uneven, seriously affecting the adhesion test result and the reproducibility of the detection result; by providing a display unit, the peeling speed, peeling time, peeling distance, and coating peeling strength of the PP copper foil coating can be displayed in real time.

[0018] The present utility model uses an automatic tape peeling instead of manual tape peeling, which can ensure the stability of the peeling speed and peeling force, thereby improving the accuracy of the test result and the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram in the front view direction of Embodiment 1;

[0020] Figure 2This is a schematic structural diagram of the test notch in the top-down direction of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the traction unit in the front view direction of the present utility model;

[0022] In the figure: 1 - support column, 2 - bearing support plate, 4 - pressing plate, 5 - test notch, 6 - sliding groove, 7 - traction motor, 8 - lead screw, 9 - adhesion detection tensiometer, 10 - test tape chuck, 11 - placement plate, 12 - display screen, 13 - sliding table. Specific embodiments

[0023] Embodiment 1

[0024] A PP copper foil adhesion test device, as Figure 1 and Figure 2 shown, includes a placement unit, a detection unit, a traction unit and a display unit; wherein, as Figure 2 shown, the placement unit includes four support columns 1, an L-shaped bearing plate arranged at the top ends of the four support columns 1, a bearing support plate 2 movably arranged at the top of the bearing plate, a rectangular groove arranged at the top of the bearing support plate 2 (this technology is prior art and not shown in the figure, and an A4-sized PP copper foil can be placed therein), and a pressing plate 4 detachably arranged above the bearing support plate 2 (as Figure 1 shown); a plurality of test notches 5 are vertically and parallelly arranged in the pressing plate 4. It should be noted that the top surface of the bearing support plate 2 is an inner "concave" structure, and an A4-sized PP copper foil can be placed therein, and the rectangular groove refers to the groove formed by the depression of the bearing support plate 2.

[0025] The traction unit is used to separate the unbonded end of the pp copper foil test tape from the pp copper foil; as Figure 1 and Figure 3 shown, the traction unit includes a sliding groove 6 arranged on one side of the bearing support plate 2 (i.e., connected to the right side of the L-shaped bearing plate), a traction motor 7 arranged in the sliding groove 6, a lead screw 8 connected to the output shaft of the traction motor 7, and a sliding table 13 slidably arranged in the sliding groove 6 and threadedly sleeved on the lead screw 8; the detection unit is arranged at the top of the sliding table 13; the end of the lead screw 8 away from the traction motor 7 is rotatably connected to the inner wall of the sliding groove 6.

[0026] As Figure 1 and Figure 3 shown, the detection unit is used to measure the peeling strength of the PP copper foil coating; the detection unit includes an adhesion detection tensiometer 9 (model: JLBS-M2-5kg BSQ-3) arranged at the top of the sliding table 13, and a test tape chuck 10 arranged at one end of the adhesion detection tensiometer 9 close to the bearing support plate 2.

[0027] The display unit is used to display stripping parameters, such as stripping speed, stripping time, stripping distance, and plating stripping strength, etc. As Figure 1 shown, the display unit includes a placement plate 11 provided on one side of the carrier pallet 2 (i.e., connected to the front side of the L-shaped carrier plate), a mounting groove provided at the top of the placement plate 11, and a display screen 12 (model: Weigongtong MT8071IE) provided in the mounting groove.

[0028] Furthermore, the testing device further includes a programmable logic controller PLC (model: Mitsubishi FX5U-32MR / ES, not shown in the figure) provided on the testing device. The programmable logic controller is electrically connected to the traction motor 7, the adhesion detection tensiometer 9, and the display screen 12 respectively. The programmable logic controller PLC is used to control the traction motor 7 and is electrically connected to the tensiometer and the display screen 12 respectively. Specifically, the display screen 12 and the programmable logic controller PLC are connected using Ethernet, and the adhesion detection tensiometer 9 and the programmable logic controller PLC are connected using an analog quantity of 0-10V. After the adhesion detection tensiometer 9 transmits the data to the programmable logic controller PLC, the programmable logic controller PLC then transmits it to the display through Ethernet.

[0029] The working principle is as follows:

[0030] S1 Place the carrier pallet 2 on the L-shaped support plate, and then place the pp copper foil to be tested in the rectangular groove of the carrier pallet 2 and cover the pressing plate 4. At this time, it is necessary to align and parallelize the test slot 5 with the test tape chuck 10;

[0031] S2 Place the test tape parallel to the test slot 5 and evenly bond it in the test slot 5, and then bend the unbonded end by 180° and clamp it and fix it on the test tape chuck 10;

[0032] S3 Drive the traction motor 7 to work, so that the lead screw 8 rotates accordingly, and then drive the slide table 13 to drive the chuck to move to the right at a constant speed, so that the pp copper foil is peeled off from the bonding interface at a specified speed. When the plating of the pp copper foil falls off, record the stripping speed, stripping time, stripping distance, and plating stripping strength displayed on the display screen 12 to complete the experiment. After the experiment is completed, the test chuck returns to its original position;

[0033] S4 Move the carrier pallet 2 so that the next test slot 5 is aligned and parallel to the test tape chuck 10, and then repeat steps S2 and S3 to complete the second PP copper foil adhesion test. After the test is completed, continue to test the next test slot 5 according to the above method to complete the third PP copper foil adhesion test, and more tests.

[0034] In the description of this patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "longitudinal", "transverse", etc. are based on the Figure 1 orientation or positional relationships shown, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of this patent.

Claims

1. A PP copper foil adhesion testing device, characterized in that: include: A placement unit, the placement unit comprising a support column (1), a bearing tray (2) arranged at the top of the support column (1), a rectangular groove arranged at the top of the bearing tray (2), and a pressing plate (4) detachably arranged above the bearing tray (2); a test notch (5) is vertically penetrated in the pressing plate (4); Detection unit, used to measure the peel strength of PP copper foil coating; A pulling unit is used to separate the unbonded end of the PP copper foil test tape from the PP copper foil; The display unit is used to display the stripping parameters.

2. A PP copper foil adhesion testing device according to claim 1, characterized in that: The traction unit comprises a slide groove (6) arranged on one side of the bearing tray (2), a traction motor (7) arranged in the slide groove (6), a screw rod (8) connected to the output shaft of the traction motor (7), and a slide table (13) slidably arranged in the slide groove (6) and threadedly sleeved on the screw rod (8); the detection unit is arranged at the top of the slide table (13); and one end of the screw rod (8) away from the traction motor (7) is rotatably connected to the inner wall of the slide groove (6).

3. A PP copper foil adhesion testing device according to claim 2, characterized in that: The detection unit comprises an adhesion detection tensile gauge (9) arranged at the top of the slide (13), and a test tape clamp (10) arranged at one end of the adhesion detection tensile gauge (9) close to the bearing support plate (2).

4. A PP copper foil adhesion testing device according to claim 3, characterized in that: The display unit comprises a placement plate (11) arranged on one side of the bearing tray (2), a mounting groove arranged on the top of the placement plate (11), and a display screen (12) arranged in the mounting groove.

5. A PP copper foil adhesion testing device according to claim 4, characterized in that: It also includes a programmable logic controller (PLC), which is electrically connected to the traction motor (7), the adhesion detection tensile meter (9) and the display screen (12) respectively.

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