Device for testing bonding strength of composite current collector

Abstract

The utility model discloses a bonding strength testing device for a composite current collector, and relates to the technical field of testing devices. The composite current collector bonding strength testing device comprises a universal tensile testing machine main body, a supporting plate, a guide column, a sliding seat arranged on one side of the guide column in a sliding mode and a clamp arranged on the sliding seat and used for driving a composite current collector to carry out bonding strength testing, and a composite current collector sample is pasted on the surface of the supporting plate. According to the device, a traditional supporting plate fixedly arranged on a testing device is changed, the fixing base is used for rotatably supporting the two supporting plates when the two supporting plates are combined, and after the bonding strength test of a composite current collector sample is completed, the positions of the two supporting plates can be rotatably replaced, so that the supporting plate without an adhesive layer is replaced to a using position, and the testing efficiency is improved. And the replaced supporting plate completes cleaning of the residual adhesive layer on the surface under the assistance of the heater, the scraper blade and the like, so that the influence of the residual adhesive layer on the precision of a test result of the bonding strength of the composite current collector can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field, concretely is a kind of composite current collector adhesive strength testing device. BACKGROUND

[0002] Composite current collector is new battery current collector material, composite current collector can improve the safety and energy density of battery, currently using universal tensile testing machine and other test equipment to test the viscosity of composite current collector, i.e. composite current collector sample is pasted on support plate, then composite current collector is driven to move up by clamp, until composite current collector sample is torn from support plate, and then the adhesive strength of composite current collector sample is obtained.

[0003] Composite current collector sample is pasted on the surface of support plate through the adhesive layer on one side thereof, when composite current collector sample is torn from support plate, part of adhesive layer will be left on the surface of support plate, when the adhesive strength of other types of composite current collector needs to be tested, the residual adhesive layer on support plate will affect the sample pasted on support plate subsequently, resulting in deviation of the test result of the adhesive strength of sample pasted subsequently, so as to affect the effect of composite current collector and other samples in actual use, in view of the deficiency of prior art, the utility model provides a kind of composite current collector adhesive strength testing device to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiency of prior art, the utility model provides a kind of composite current collector adhesive strength testing device, solve the problem that composite current collector sample is pasted on the surface of support plate through the adhesive layer on one side thereof, when composite current collector sample is torn from support plate, part of adhesive layer will be left on the surface of support plate, when the adhesive strength of other types of composite current collector needs to be tested, the residual adhesive layer on support plate will affect the sample pasted on support plate subsequently, resulting in deviation of the test result of the adhesive strength of sample pasted subsequently.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of composite current collector adhesive strength testing device, including universal tensile testing machine main body, the support plate for supporting composite current collector being set on the top surface of universal tensile testing machine main body, fixedly set in the guide column of the top surface of universal tensile testing machine main body, the sliding seat being slidably arranged on one side of guide column and the clamp being arranged in sliding seat for driving composite current collector to carry out adhesive strength test, the top surface of universal tensile testing machine main body is provided with replacement mechanism, and the replacement mechanism includes:

[0006] Fixed seat is fixedly set on the top surface of universal tensile testing machine main body, and the inner wall of fixed seat is rotatably provided with barrier plate by control rod, and a group of support plates are fixedly arranged on the two sides of barrier plate;

[0007] A heater is arranged on the side wall of the fixing base and communicates with the internal environment of the fixing base;

[0008] A connecting shell is fixedly connected with one side of the fixing base, and a scraping plate for supporting the surface residual adhesive cleaning is slidably arranged in the connecting shell. A pull rod for driving the scraping plate to move is slidably arranged on one side of the connecting shell.

[0009] A spring is sleeved on the outer wall of one end of the pull rod, and the two ends of the spring are fixedly connected with the scraping plate and one side of the connecting shell, respectively.

[0010] Preferably, an extension rod is fixedly arranged between one side of the scraping plate and the inner wall of the connecting shell.

[0011] Preferably, a recycling assembly is arranged in the fixing base, and the recycling assembly is located at the lower part of the scraping plate.

[0012] Preferably, the recycling assembly comprises an opening arranged on one side of the fixing base, a receiving box inserted into the internal environment of the fixing base through the opening, and a locking screw rod for locking the receiving box and the fixing base.

[0013] Preferably, the internal environment of the receiving box receives water.

[0014] Preferably, a sealing plate is fixedly connected with one side of the receiving box, and the size of the sealing plate is greater than the size of the opening.

[0015] Preferably, a fixed hole is arranged on the outer wall of one end of the control rod extending to the outside of the fixing base, and a fixing screw rod is rotatably arranged on one side of the fixing base, and one end of the fixing screw rod penetrates through the fixed hole.

[0016] The utility model discloses a composite current collector bonding strength testing device, which has the following beneficial effects: the composite current collector bonding strength testing device changes the traditional fixed support plate arranged on the testing device, uses the fixing base to rotatably support the support plate during the use of two groups of combination, and after completing the bonding strength test of a composite current collector sample, the position of the two groups of support plates can be rotated and replaced, so that the support plate without the adhesive layer is replaced to the use position, and the replaced support plate is cleaned of the surface residual adhesive layer under the assistance of the heater and the scraping plate, so that the influence of the residual adhesive layer on the bonding strength test result precision of the composite current collector can be effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the fixed seat internal structure section view of the utility model;

[0020] Figure 3 It is the support plate rotates after structure schematic view of the utility model;

[0021] Figure 4 It is the support plate, barrier plate and control lever connection structure schematic view of the utility model;

[0022] Figure 5 It is the scraper and pull rod connection structure schematic view of the utility model;

[0023] Figure 6 It is the fixed seat and the structure explosion chart of the utility model is accepted in box.

[0024] In the drawing: 1, universal tensile testing machine main body;2, support plate;3, guide pillar;31, sliding seat;32, clamp;4, replacement mechanism;41, fixed seat;42, barrier plate;43, control lever;431, fixed hole;432, fixed screw;44, heater;45, connecting shell;46, scraper;47, pull rod;48, spring;49, telescopic rod;5, recycling assembly;51, opening;52, receiving box;53, sealing plate;54, locking screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0026] The embodiment of the application provides a composite current collector bonding strength testing device, which solves the problem that a composite current collector sample is pasted on the surface of a support plate through the adhesive layer on one side of the composite current collector sample, when the composite current collector sample is torn off from the support plate, part of the adhesive layer is left on the surface of the support plate, when the bonding strength of other types of composite current collectors needs to be tested, the residual adhesive layer on the support plate will affect the sample pasted on the support plate subsequently, resulting in deviation of the bonding strength test result of the subsequently pasted sample.

[0027] For better understanding of the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments of the specification.

[0028] The utility model discloses a composite current collector bonding strength testing device.

[0029] According to the drawings Figures 1-6 As shown in the drawings, including universal tensile testing machine main body 1, set up in the universal tensile testing machine main body 1 top surface for supporting the composite current collector's support plate 2, fixedly set up in the universal tensile testing machine main body 1 top surface's guide column 3, the sliding seat 31 of sliding setting in guide column 3 one side and set up in the sliding seat 31 for driving composite current collector carries out the bonding strength test's clamp 32, universal tensile testing machine main body 1, guide column 3, sliding seat 31 and clamp 32 etc. Component group type is HY-0580 universal tensile testing machine, when it carries out the test to the bonding strength of composite current collector, first, composite current collector is made into the sample of certain size, then the sample is pasted in support plate 2 top surface, then the adhesive tape etc. Other adhesive piece adheres in the sample side away from support plate 2, then uses clamp 32 to adhere to other adhesive piece of adhesive tape and so on and carries out the clamping fixation, then, start universal tensile testing machine, so that clamp 32 is driven under the sliding seat 31 and moves upwards along the outer wall of guide column 3, until the sample is separated from support plate 2, when separating, universal tensile testing machine can automatically, record the force value when separating, and calculate the bonding strength between polymer coating diaphragm and pole piece, the result after calculation is shown through the display screen of universal tensile testing machine network connection.

[0030] Refer to the drawings Figures 1-5, the top surface of the universal tensile testing machine body 1 is provided with a replacement mechanism 4, after the composite current collector sample is torn off from the support plate 2, part of the glue layer will be left on the surface of the support plate 2, at this time, through the setting of the replacement mechanism 4, on the one hand, the support plate 2 is replaced, on the other hand, the glue layer left on the surface of the support plate 2 can be cleaned, so as to avoid affecting the accuracy of the test results of other samples, the replacement mechanism 4 includes a fixed seat 41, the fixed seat 41 is fixedly arranged on the top surface of the universal tensile testing machine body 1, and the inner wall of the fixed seat 41 is rotatably provided with a blocking plate 42 through a control rod 43, the control rod 43 is fixedly connected with the middle part of the blocking plate 42, and one end of the control rod 43 is rotatably connected with the inner wall of the fixed seat 41, a group of support plates 2 are fixedly arranged on the two sides of the blocking plate 42, the blocking plate 42 can seal and block the cavity on the top surface of the fixed seat 41, so that the blocking plate 42 can combine the internal and external environment temperatures of the fixed seat 41, and at the same time, the temperature transmission between the two groups of support plates 2 is avoided, and the outer wall of one end of the control rod 43 extending to the outside of the fixed seat 41 is provided with a fixed hole 431, and a fixed screw 432 is rotatably arranged on one side of the fixed seat 41, one end of the fixed screw 432 penetrates through the fixed hole 431, specifically, by rotating the control rod 43, the blocking plate 42 is driven to overturn 180 degrees around the control rod 43 as the axis, so that the positions of the support plates 2 on the two sides of the blocking plate 42 can be interchanged, after the position interchanging, the fixed screw 432 arranged on one side of the fixed seat 41 is rotated, so that one end of the fixed screw 432 penetrates through the fixed hole 431 and is screw-connected in the inside of the other side of the fixed seat 41, so as to lock the blocking plate 42, the support plate 2 and the fixed seat 41;

[0031] Referring to the drawings Figure 6 The heater 44 is arranged on the side wall of the fixed seat 41, and the heater 44 communicates with the internal environment of the fixed seat 41, the heater 44 blows hot air into the inside of the fixed seat 41, so that the glue layer left on the surface of the support plate 2 corresponding to the internal environment of the fixed seat 41 is softened by heat;

[0032] Referring to the drawings Figures 2-5The connecting shell 45 is fixedly connected to one side of the fixed seat 41, the inside of the connecting shell 45 is communicated with the inside of the fixed seat 41, a scraping plate 46 for supporting the residual glue cleaning on the surface of the support plate 2 is slidingly arranged in the inside of the connecting shell 45, a pull rod 47 for driving the scraping plate 46 to move is slidingly arranged on one side of the connecting shell 45, a spring 48 is sleeved on the outer wall of one end of the pull rod 47, and the two ends of the spring 48 are fixedly connected with the scraping plate 46 and one side of the connecting shell 45 respectively, and a telescopic rod 49 is fixedly arranged between one side of the scraping plate 46 and the inner wall of the connecting shell 45. After the residual glue layer on the surface of the support plate 2 is softened by heating, the pull rod 47 is pushed towards the fixed seat 41 at this time, so that the pull rod 47 drives the scraping plate 46 fixedly connected with one end of the pull rod 47 to slide in the inside of the fixed seat 41. During the process, the scraping plate 46 drives the spring 48 connected with one side of the scraping plate 46 to expand, so that the scraping plate 46 scrapes and cleans the softened glue layer on the surface of the support plate 2, and then the surface of the support plate 2 is in a clean state. When the pull rod 47 is released, the external control force on the scraping plate 46 disappears, so that the elastic force of the spring 48 acting on the scraping plate 46 gradually increases, so that the scraping plate 46 is reset to the state as shown in the attached Figure 2 , that is, the scraping plate 46 is withdrawn to the inside of the connecting shell 45, and the scraping plate 46 will not hinder the rotating path of the support plate 2 at this time.

[0033] Referring to the attached Figure 3 and the attached Figure 6 , the inside of the fixed seat 41 is provided with a recycling assembly 5, the recycling assembly 5 is located below the scraping plate 46, and the recycling assembly 5 can concentrate the glue layer scraped by the scraping plate 46. The recycling assembly 5 comprises an opening 51 formed on one side of the fixed seat 41, a receiving box 52 inserted into the inside of the fixed seat 41 through the opening 51, and a locking screw 54 for locking between the receiving box 52 and the fixed seat 41. The inside of the receiving box 52 receives water, so that the scraped glue layer directly falls into the water in the inside of the receiving box 52, avoiding the scraped glue layer from being solidified and adhered to the inner wall of the receiving box 52 again, and facilitating the cleaning of the recycled glue layer in the inside of the receiving box 52 in the later period. The receiving box 52 is fixedly connected with a sealing plate 53, the size of the sealing plate 53 is greater than the size of the opening 51. After the receiving box 52 is inserted into the inside of the fixed seat 41 through the opening 51, the sealing plate 53 seals the opening 51 on one side of the fixed seat 41 at this time, and then the sealing plate 53 is fixed between the fixed seat 41 through the locking screw 54, so as to stably arrange the receiving box 52 in the inside of the fixed seat 41.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite current collector bonding strength testing device, comprising a universal tensile testing machine body (1), a support plate (2) arranged on the top surface of the universal tensile testing machine body (1) for supporting the composite current collector, a guide column (3) fixedly arranged on the top surface of the universal tensile testing machine body (1), a sliding seat (31) slidingly arranged on one side of the guide column (3), and a clamp (32) arranged on the sliding seat (31) for driving the composite current collector to perform bonding strength testing, characterized in that, The top surface of the universal tensile testing machine body (1) is provided with a replacement mechanism (4), the replacement mechanism (4) comprises: The fixed seat (41) is fixedly arranged on the top surface of the universal tensile testing machine body (1), and the inner wall of the fixed seat (41) is rotatably provided with a blocking plate (42) through a control rod (43), and a group of supporting plates (2) are fixedly arranged on both sides of the blocking plate (42); The heater (44) is arranged on the side wall of the fixed seat (41), and the heater (44) is in communication with the internal environment of the fixed seat (41); The connecting shell (45) is fixedly connected with one side of the fixed seat (41), the inside of the connecting shell (45) is slidably provided with a scraper (46) for cleaning the residual adhesive on the surface of the supporting plate (2), and one side of the connecting shell (45) is slidably provided with a pull rod (47) for driving the scraper (46) to move; The spring (48) is sleeved on one end of the pull rod (47), and the two ends of the spring (48) are fixedly connected with the scraper (46) and one side of the connecting shell (45).

2. A composite current collector bond strength testing device according to claim 1, wherein: The telescopic rod (49) is fixedly arranged between one side of the scraper (46) and the inner wall of the connecting shell (45).

3. A composite current collector bond strength testing device according to claim 2, wherein: The inside of the fixed seat (41) is provided with a recycling assembly (5), and the recycling assembly (5) is located below the scraper (46).

4. A composite current collector bond strength testing device according to claim 3, wherein: The recycling assembly (5) comprises an opening (51) formed on one side of the fixed seat (41), a receiving box (52) inserted into the inside of the fixed seat (41) through the opening (51), and a locking screw (54) for locking between the receiving box (52) and the fixed seat (41).

5. A composite current collector bond strength testing device according to claim 4, wherein: The inside of the receiving box (52) receives water.

6. A composite current collector bond strength testing device according to claim 5, wherein: One side of the receiving box (52) is fixedly connected with a sealing plate (53), and the size of the sealing plate (53) is greater than the size of the opening (51).

7. A composite current collector bond strength testing device according to claim 1, wherein: The outer wall of one end of the control rod (43) extending to the outside of the fixed seat (41) is provided with a fixed hole (431), and one side of the fixed seat (41) is rotatably provided with a fixing screw (432), and one end of the fixing screw (432) penetrates through the fixed hole (431).

Images