Equipment for testing bonding strength of lead plaster on surface of lead-acid battery pole plate

Abstract

The utility model discloses equipment for testing the bonding strength of lead plaster on the surface of a polar plate of a lead-acid battery, which comprises a testing workbench and a compression roller arranged on the testing workbench, the testing workbench is provided with a testing working surface, a polar plate sample is placed on the testing working surface, and an adhesive tape covers the polar plate sample. One sticky surface of the adhesive tape is in fit contact with the polar plate sample; the compression roller is connected with a sliding transmission mechanism, and the sliding transmission mechanism is driven by a sliding motor to drive the compression roller to move back and forth so as to roll the adhesive tape and the polar plate sample which are attached and contacted back and forth; the test workbench is provided with a weight test area, and a weight sensor is arranged at the weight test area and can test the weight change of the pole plate sample before and after rolling. The testing equipment can quickly and effectively test and analyze the bonding strength of the lead plaster on the surface of the lead-acid battery pole plate according to the weight change of the pole plate sample before and after rolling, and can improve the testing accuracy of the bonding strength of the lead plaster.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery production, in particular to a testing device for the adhesion strength of lead paste on the surface of a lead-acid battery plate. Background Art

[0002] The lead-acid battery plate is an important part of the lead-acid battery and plays an irreplaceable role in the storage and release of electrical energy in the storage battery. The plate of the lead-acid battery is formed by adhering lead paste to the grid and then curing. The adhesion strength of the lead paste on the surface of the plate will affect the stability of the plate. If there are phenomena such as easy powder falling or breakage on the surface of the plate, it will affect the cycle life of the battery product.

[0003] The existing method for testing the adhesion strength of lead paste is the "drop method". Specifically, the plate is placed at a certain height and freely dropped. The lead paste on the plate will lose a certain weight due to the collision, and the weight loss is calculated to determine the adhesion strength of the plate. This method can only focus on the bonding strength between the lead paste and the grid, and cannot prove the adhesion strength between the lead paste on the surface of the plate itself. Moreover, the test accuracy of the adhesion strength of the lead paste is not high.

[0004] Therefore, it is necessary to develop a testing device to implement a testing method different from the "drop method" so as to improve the test accuracy.

[0005] In addition, the existing testing instrument for testing the adhesion strength of lead paste is a manual testing instrument. During the testing process, the front and back weights of the plate need to be moved to a place with a balance for weighing, and the testing parameters during the testing cannot be precisely controlled, which all affect the accuracy of the experiment. Content of the Utility Model

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a testing device for the adhesion strength of lead paste on the surface of a lead-acid battery plate. This testing device can quickly and effectively test and analyze the adhesion strength of lead paste on the surface of a lead-acid battery plate, and can improve the accuracy of the lead paste adhesion strength test.

[0007] In order to achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0008] A lead-acid battery plate surface lead paste bonding strength testing device, including a testing workbench and a pressing roller arranged on the testing workbench. The testing workbench has a testing working surface, and a plate sample is placed on the testing working surface. A tape is covered on the plate sample, and the sticky side of the tape is in fitting contact with the plate sample; the pressing roller is connected to a sliding transmission mechanism, and the sliding transmission mechanism is driven by a sliding motor to drive the pressing roller to move back and forth, and roll back and forth on the tape and the plate sample in fitting contact; the testing workbench has a weight testing area, and a weight sensor is arranged at this weight testing area, which can test the weight change of the plate sample before and after rolling.

[0009] Further, the sliding transmission mechanism is a synchronous belt transmission mechanism. The driving wheel in the synchronous belt transmission mechanism is connected to the sliding motor, and the driving wheel and the driven wheel cooperate to drive the synchronous belt to move. The pressing roller is connected to the synchronous belt through a slider, and the slider is slidably matched with a slide rail arranged on the testing workbench.

[0010] Further, the pressing roller is arranged on the testing workbench through a lifting mechanism; the lifting mechanism includes a lifting frame, a lifting motor and a lifting rod. The lifting motor is installed on the lifting frame, the lifting motor is connected to a pulling rope winding and unwinding roller, a pulling rope is wound on the pulling rope winding and unwinding roller, the pulling rope is connected to the lifting rod, and the lifting rod is connected to the pressing roller.

[0011] Further, the slider is connected to a fixed rod, the fixed rod is connected to a limiting rod arranged in the vertical direction, a limiting sliding groove is arranged on the limiting rod, and the roller shaft of the pressing roller is slidably connected to the limiting sliding groove of the limiting rod.

[0012] Further, it also includes two tape fixing blocks respectively arranged at the front side and the rear side of the testing workbench, and the two tape fixing blocks are used to fix the tape covered on the plate sample.

[0013] Further, a height sensor and a position indicator light are also arranged on the testing workbench, which are used to detect and indicate the lifting height of the pressing roller.

[0014] Further, the testing device also includes a lifting control console, and the lifting control console is connected to the lifting motor, the height sensor and the position arrival indicator light through signals.

[0015] Further, the testing device also includes a sliding controller, and the sliding controller is connected to the sliding motor through a signal.

[0016] Further, the testing device also includes a weight control console, and the weight control console is connected to the weight sensor through a signal.

[0017] Further, the plate sample is located at the middle position in the width direction of the tape.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The present utility model can use a moving pressure roller to roll back and forth on a plate sample covered with a tape, so as to quickly, effectively and accurately test and analyze the lead paste bonding strength on the surface of a lead-acid battery plate by measuring the weight change of the plate sample before and after rolling. The lead paste bonding strength measured in the test process implemented by the test equipment of the present utility model covers the bonding strength between the lead paste and the grid and the bonding strength between the lead paste on the plate surface itself, making the performance characterization of the lead paste bonding strength more comprehensive and accurate.

[0020] This equipment can automatically test the lead paste bonding strength on the plate surface by automatically weighing the weight of the plate, controlling the distance between the pressure roller and the test workbench, and adjusting the speed and number of back-and-forth movements of the pressure roller, so as to make the experimental results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a test equipment for implementing a method for testing the lead paste bonding strength on the surface of a lead-acid battery plate according to an embodiment of the present utility model.

[0022] In the figure, 1: test workbench; 2: pressure roller; 3: tape; 4: plate sample; 5: sliding motor; 6: slider; 7: slide rail; 8: lifting frame; 9: lifting motor; 10: lifting rod; 11: pulling rope winding roller; 12: pulling rope; 13: fixing rod; 14: limiting rod; 15: tape regulating block; 16: weight sensor; 17: height sensor; 18: position arrival indicator light; 19: lifting control console; 20: sliding control instrument; 21: weight control console. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following elaborates on the preferred embodiments of the present utility model in detail with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the scope of protection of the present utility model more clearly defined.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] As Figure 1A preferred embodiment of the lead paste bonding strength testing device for the surface of a lead-acid battery plate is shown. It includes a testing workbench 1 and a pressing roller 2 disposed on the testing workbench 1. The pressing roller 2 includes a roller shaft and a roller body, and the roller body is rotatable. The testing workbench 1 has a testing working surface, and a tape 3 and a plate sample 4 in contact with each other are placed on the testing working surface. The pressing roller 2 can move back and forth to roll the tape 3 and the plate sample 4 in contact with each other.

[0026] The pressing roller 2 is connected to a sliding transmission mechanism, and the sliding transmission mechanism is driven by a sliding motor 5 to drive the pressing roller 2 to move back and forth to roll the tape 3 and the plate sample 4 in contact with each other back and forth. Specifically, the sliding transmission mechanism is a synchronous belt transmission mechanism. The driving wheel in the synchronous belt transmission mechanism is connected to the sliding motor 5, and the driving wheel and the driven wheel cooperate to drive the synchronous belt to move. The pressing roller 2 is connected to the synchronous belt through a slider 6, and the slider 6 is slidably engaged with a slide rail 7 disposed on the testing workbench 1.

[0027] The pressing roller 2 for rolling can also be designed in a form that can be lifted and lowered through a lifting mechanism. Specifically, the pressing roller 2 is disposed on the testing workbench 1 through a lifting mechanism. The lifting mechanism includes a lifting frame 8, a lifting motor 9, and a lifting rod 10. The lifting motor 9 is installed on the lifting frame 8. The lifting motor 9 is connected to a pulling rope winding and unwinding roller 11, and a pulling rope 12 is wound around the pulling rope winding and unwinding roller 11. The pulling rope 12 is connected to the lifting rod 10, and the lifting rod 10 is connected to the pressing roller 2.

[0028] The slider 6 is connected to a fixing rod 13, and the fixing rod 13 is also connected to the lifting frame 8. The fixing rod 13 is connected to a limiting rod 14 disposed in the vertical direction. A limiting chute is provided on the limiting rod 14, and the roller shaft of the pressing roller 2 is slidably connected to the limiting chute of the limiting rod 14.

[0029] The testing device further includes tape fixing blocks 15 disposed on the front and rear parts of the testing workbench, and the tape fixing blocks 15 are used to fix the tape 3 covering the plate sample 4.

[0030] A weight sensor 16 is provided in the weight testing area of the testing workbench 1, which can test the weight change of the plate sample before and after rolling. The testing device further includes a weight control console 21, and the weight control console 21 is connected to the weight sensor 16 through a signal connection.

[0031] A height sensor 17 and a position arrival indicator light 18 are also provided on the testing workbench 1 for detecting and indicating the lifting height of the pressing roller. The testing device further includes a lifting control console 19, and the lifting control console 19 is connected to the lifting motor 9, the height sensor 17, and the position arrival indicator light 18 through signal connections.

[0032] The test device further includes a sliding controller 20, and the sliding controller 20 is signal-connected to the sliding motor 5.

[0033] The process of using this test device to test the adhesion strength of the lead paste on the surface of a lead-acid battery plate is as follows:

[0034] 1) Clean the weight test area of the test workbench, turn on the weight console 21 and zero it.

[0035] 2) Clean the surface of the plate sample 4, place it in the weight measurement area of the test workbench 1, and the weight sensor 16 transmits the data to the weight console 21. Record the weight of the plate at this time, which is the initial weight m 1 .

[0036] 3) Fix one end of the tape 3 with the tape fixing block 15 on the test workbench 1, manually pull the tape 3 to the position of the tape fixing block 15 on the other side, ensure that the stretching direction of the tape is parallel to both ends of the plate sample and the tape completely covers the plate sample, the plate sample is located in the middle position in the width direction of the tape, the tape on the surface of the plate sample is flat, without damage, deformation, wrinkles, etc. Fix the tape 3 with the tape fixing block 15 and cut the tape with a safety knife;

[0037] 4) Turn on the lifting console 19, start the lifting motor 9, turn on the position arrival indicator light 18, and at this time the position arrival indicator light 18 is red; the lifting motor 9 rotates, and the lifting rod 10 moves downward through the pulling rope 12, thereby driving the pressure roller 2 to slowly descend. When the pressure roller 2 contacts the test workbench 1, the height sensor 17 transmits a signal to the position arrival indicator light 18, and at this time the position arrival indicator light 18 turns green and the pressure roller 2 stops descending;

[0038] 5) Turn on the sliding controller 20, set the rolling back and forth time to 2 s, set the number of back and forth times to 6 times, start the sliding motor 5, and the slider 6 starts to move along the slide rail 7. The fixed rod 13 connected to the slider drives the pressure roller 2 to move. After rolling back and forth 6 times, the pressure roller 2 returns to its original position. Driven by the lifting motor 9, the pressure roller 2 is raised back to the initial height;

[0039] 6) Open the tape fixing block 15 on one side, tear off the tape 3, and record the weight m of the plate sample displayed on the weight console 21 at this time 2 , and evaluate the adhesion strength of the plate lead paste according to the weight difference (m 1 -m 2 ) of the plate sample before and after. The greater the weight difference before and after, the worse the adhesion strength of the lead paste on the surface of the plate.

[0040] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lead-acid battery plate surface lead paste bonding strength testing device, characterized in that: It comprises a test workbench and a pressing roller arranged on the test workbench, wherein the test workbench has a test work surface, on which a plate sample is placed, and the plate sample is covered with an adhesive tape, wherein a sticky side of the adhesive tape is in contact with the plate sample; the pressing roller is connected to a sliding transmission mechanism, which is driven by a sliding motor to drive the pressing roller to move back and forth, and to roll back and forth the adhesive tape and the plate sample in contact with each other; the test workbench has a weight testing area, on which a weight sensor is arranged, and which can test the weight change of the plate sample before and after rolling.

2. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 1, characterized in that: The sliding transmission mechanism is a synchronous belt transmission mechanism, in which a driving wheel is connected to a sliding motor, and the driving wheel cooperates with a driven wheel to drive the synchronous belt to move, the pressure roller is connected to the synchronous belt through a slider, and the slider slidably cooperates with a slide rail arranged on the test workbench.

3. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 1, characterized in that: The pressure roller is arranged on the test workbench through a lifting mechanism; the lifting mechanism includes a lifting frame, a lifting motor and a lifting rod, the lifting motor is installed on the lifting frame, the lifting motor is connected to a pulling rope retracting roller, a pulling rope is wound on the pulling rope retracting roller, the pulling rope is connected to the lifting rod, and the lifting rod is connected to the pressure roller.

4. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 2, characterized in that: The slide block is connected with a fixing rod, the fixing rod is connected with a limiting rod arranged in a vertical direction, a limiting sliding groove is arranged on the limiting rod, and the roller shaft of the pressure roller is slidably connected with the limiting sliding groove of the limiting rod.

5. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 1, characterized in that: It also includes two tape fixing blocks which are respectively arranged at the front side and the rear side of the test workbench, and the two tape fixing blocks are used to fix the tape covering the plate sample.

6. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 3, characterized in that: The test workbench is also provided with a height sensor and a position indicator light for detecting and indicating the lifting height of the pressure roller.

7. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 6, characterized in that: The test equipment also includes a lifting console, which is connected to the lifting motor, the height sensor and the position arrival indicator light through signals.

8. The lead paste bonding strength testing device for lead-acid battery plate surface according to claim 1, characterized in that: The testing device also includes a sliding controller, which is connected to the sliding motor via a signal.

9. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 1, characterized in that: The testing device also includes a weight control console, which is connected to the weight sensor via a signal.

10. A lead-acid battery plate surface lead paste bonding strength testing device according to claim 1, characterized in that: The electrode sample is located in the middle of the width direction of the tape.

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