An auxiliary device for measuring the sheet resistance of a metallized film

Abstract

The present invention discloses an auxiliary device for measuring the sheet resistance of a metallized film, including a device for measuring the sheet resistance of a metallized film. An auxiliary device for measuring the sheet resistance of a metallized film is placed on the upper end of the device for measuring the sheet resistance of a metallized film. The auxiliary device for measuring the sheet resistance of a metallized film includes a bottom plate, a pressing plate and a connecting member, and the pressing plate is located at the upper end of the bottom plate. The auxiliary device for measuring the sheet resistance of a metallized film according to the present invention can complete the measurement of the sheet resistance at a specified position, and at the same time can increase the measurement speed by about 10 times. The pressing block presses the metallized film body, effectively preventing the metallized film body from moving, facilitating measurement. The rotating shaft presses the roller downward against the metallized film body under the tension of the first spring, and at the same time makes the roller roll on the bottom plate, facilitating the flattening of the metallized film body on the bottom plate. It is applicable to the measurement of the sheet resistance of a metallized film.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet resistance measurement devices, and particularly to an auxiliary device for measuring the sheet resistance of metallized films. Background Art

[0002] The sheet resistance of metallized films is an important parameter of metallized films. The accurate measurement of sheet resistance is very important for the design of metallized films and the inspection of metallized film products. However, the thickness of metallized films is generally several micrometers. When measuring the sheet resistance of films with a sheet resistance tester, the following problems exist: (1) When it is required to measure the sheet resistance at equal intervals on the metallized film, manually moving the metallized film or moving the film along the scale line, since the film is too thin and soft, it is very easy to cause position deviation, resulting in the measurement position being inconsistent with the required measurement position; (2) When measuring the sheet resistance of the metallized film at different positions, since the probes of the sheet resistance tester are fixed and the metallized film with a thickness of only a few micrometers can be moved, it is very easy to cause wrinkles in the metallized film during the movement, which has a great impact on the sheet resistance measurement result. Summary of the Invention

[0003] The purpose of the present invention is to provide an auxiliary device for measuring the sheet resistance of metallized films to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary device for measuring the sheet resistance of metallized films, including a device for measuring the sheet resistance of metallized films. An auxiliary device for measuring the sheet resistance of metallized films is placed on the upper end of the device for measuring the sheet resistance of metallized films. The auxiliary device for measuring the sheet resistance of metallized films includes a bottom plate, a pressing plate, and a connecting member. The pressing plate is located at the upper end of the bottom plate, and the pressing plate is hinged to the bottom plate through the connecting member. A measurement hole is opened at the upper end of the pressing plate.

[0005] Preferably, a metallized film body is placed between the bottom plate and the pressing plate, and the metallized film body is laid flat on the upper end of the bottom plate.

[0006] Preferably, there are thirty-three measurement holes, and the thirty-three measurement holes are arranged horizontally, and the measurement holes on the pressing plate are opened according to the scale line according to the requirements of the sheet resistance measurement position.

[0007] Preferably, the edges of the bottom plate and the pressing plate are completely aligned. When the metallized film body is fixed to the bottom plate, its edge line is aligned with the edge line of the bottom plate. When the pressing plate is lowered, the edge line of the metallized film body is also aligned with the edge line of the pressing plate.

[0008] Preferably, a fixing plate is fixedly installed on the front surface of the bottom plate, and a pressing roller device and a pressing device are provided on the fixing plate.

[0009] Preferably, the pressure roller device includes a connecting rod, a sliding block, a fixed block, a sleeve plate, a grip rod, a rotating shaft, a rotating roller, a first spring and a roller. The connecting rod is fixedly installed on one side of the fixed plate. A trapezoidal groove is formed in the connecting rod. One end of the sliding block is located in the trapezoidal groove. There are two rollers. The two rollers are respectively rotatably installed on both sides of the sliding block, and both rollers are located in the trapezoidal groove. The fixed block is fixedly installed on one side of the sliding block. The sleeve plate is located above the sliding block. The sleeve plate is sleeved with the sliding block. The rotating shaft is fixedly installed on one side of the sleeve plate. The rotating roller is sleeved on the rotating shaft, and the rotating roller is rotatably connected with the rotating shaft. The lower end of the first spring is fixedly connected with the fixed block, and the upper end of the first spring is fixedly connected with the rotating shaft. The grip rod is fixedly installed on the other side of the sleeve plate.

[0010] Preferably, a rubber sleeve is sleeved on the grip rod. Anti-slip lines are formed on the outer wall of the rubber sleeve, and the depth of the anti-slip lines is 1 mm.

[0011] Preferably, the pressing device includes a slider, a second spring, a pull rod, a pressing block, a convex block, a third spring, an arc-shaped block and a top plate. The arc-shaped block is fixedly installed on the fixed plate. The top plate is fixedly installed on the front surface of the arc-shaped block. The rear end of the arc-shaped block is in contact with the bottom plate. The slider is located above the arc-shaped block. The slider is slidably connected with the arc-shaped block. The second spring is located between the slider and the top plate. One end of the second spring is fixedly connected with the top plate, and the other end of the second spring is fixedly connected with the slider. A clamping groove is formed at the rear side of the slider. The convex block is clamped in the clamping groove, and the convex block is slidably connected with the slider through the clamping groove. The third spring is fixedly installed at the upper end of the convex block, and the upper end of the third spring is in contact with the upper end inner wall of the clamping groove. The pressing block is fixedly installed at the rear side of the convex block. The pull rod is fixedly installed at the upper end of the convex block.

[0012] Preferably, the four corners of the pull rod are arc-shaped, and the height of the pull rod is lower than the height of the rotating shaft.

[0013] Preferably, a groove is formed at the lower end of the pressing plate. The pressing block is located in the groove. The lower end of the pressing block is in contact with the bottom plate, and the contact corner between the pressing block and the bottom plate is arc-shaped.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] (1). Through the reasonable design of the bottom plate, the pressing plate and the measuring holes on the pressing plate, the present invention essentially forms a device capable of assisting a square resistance tester to quickly and accurately measure the square resistance at a specified position on a metallized film with a relatively thin thickness (several microns). This device for assisting in measuring the square resistance of the metallized film can complete the measurement of the square resistance at the specified position and can increase the measurement speed by about 10 times.

[0016] (2) By means of the pressing device, the metallized film body is laid flat on the bottom plate. By pulling the pull rod, the third spring is compressed, aligning the metallized film body with the bottom plate. Then, under the elastic force of the third spring, the pressing block presses the metallized film body, effectively preventing the metallized film body from moving and facilitating measurement.

[0017] (3) By means of the pressing roller device, move the grip rod to make the roller slide in the trapezoidal groove. Secondly, under the pulling force of the first spring, the rotating roller presses the metallized film body downward, and at the same time, the rotating roller rolls on the bottom plate, facilitating the flattening of the metallized film body on the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram when measuring the sheet resistance of the film with a sheet resistance tester without the auxiliary measuring device of the present invention;

[0019] Figure 2 It is a top view structural schematic diagram of the metallized film sheet resistance measuring device and the metallized film sheet resistance measuring auxiliary device of the present invention;

[0020] Figure 3 It is a front view structural schematic diagram of the metallized film sheet resistance measuring device and the metallized film sheet resistance measuring auxiliary device of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the bottom plate and the metallized film body of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the pressing roller device and the pressing device of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the convex block, the third spring and the pressing block of the present invention;

[0024] Figure 7 For the present invention Figure 3 Partial enlarged view of A in;

[0025] Figure 8 It is a half-sectional structural schematic diagram of the connecting rod of the present invention;

[0026] Figure 9 It is a partial front view structural schematic diagram of the pressing plate of the present invention.

[0027] In the figure: 1. Metallized film sheet resistance measuring device; 2. Metallized film sheet resistance measuring auxiliary device; 21. Bottom plate; 22. Pressing plate; 23. Connecting piece; 24. Measuring hole; 3. Metallized film body; 4. Pressing roller device; 41. Connecting rod; 42. Trapezoidal groove; 43. Sliding block; 44. Fixed block; 45. Sleeve plate; 46. Holding rod; 47. Rotating shaft; 48. Rotating roller; 49. First spring; 401. Roller; 5. Pressing device; 51. Slide block; 52. Second spring; 53. Pull rod; 54. Card slot; 55. Pressing block; 56. Convex block; 57. Third spring; 58. Arc-shaped block; 59. Top plate; 501. Groove; 6. Fixed plate. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-9, the present invention provides a technical solution: a device for assisting in measuring the sheet resistance of a metallized film, including a device 1 for measuring the sheet resistance of a metallized film. On the upper end of the device 1 for measuring the sheet resistance of a metallized film, there is placed a device 2 for assisting in measuring the sheet resistance of a metallized film. The device 2 for assisting in measuring the sheet resistance of a metallized film includes a bottom plate 21, a pressing plate 22, and a connecting member 23. The pressing plate 22 is located at the upper end of the bottom plate 21, and the pressing plate 22 is hinged to the bottom plate 21 through the connecting member 23, so that when the bottom plate 21 is fixed, the pressing plate 22 can be flexibly lifted or lowered, thus facilitating the flat placement of the metallized film body 3 and avoiding wrinkling. On the upper end of the pressing plate 22, there are provided 33 measuring holes 24. The 33 measuring holes 24 are arranged horizontally, and the measuring holes 24 on the pressing plate 22 are opened according to the scale lines according to the requirements of the sheet resistance measurement position, so as to avoid too large deviation in the measurement position. Between the bottom plate 21 and the pressing plate 22, there is placed a metallized film body 3. The metallized film body 3 is laid flat on the upper end of the bottom plate 21, and the edges of the bottom plate 21 and the pressing plate 22 are completely aligned, so as to ensure that the distance measurement results are the same whether taking the edge line of the pressing plate 22 as the reference coordinate system or taking the edge line of the bottom plate 21 as the reference coordinate system. And when the metallized film body 3 is fixed to the bottom plate 21, its edge line is aligned with the edge line of the bottom plate 21. When the pressing plate 22 is lowered, the edge line of the metallized film body 3 is also aligned with the edge line of the pressing plate 22. Through the reasonable design of the bottom plate 21, the pressing plate 22, and the measuring holes 24 on the pressing plate 22, a device is essentially formed that can assist a sheet resistance tester to quickly and accurately measure the sheet resistance at specified positions on a metallized film with a relatively thin thickness (several microns). This device 2 for assisting in measuring the sheet resistance of a metallized film can complete the measurement of the sheet resistance at specified positions and can also increase the measurement speed by about 10 times;

[0030] On the front surface of the bottom plate 21, a fixing plate 6 is fixedly installed, and a pressing roller device 4 and a pressing device 5 are provided on the fixing plate 6;

[0031] The pressure roller device 4 includes a connecting rod 41, a sliding block 43, a fixed block 44, a sleeve plate 45, a grip rod 46, a rotating shaft 47, a rotating roller 48, a first spring 49, and a roller 401. The connecting rod 41 is fixedly installed on one side of the fixed plate 6. A trapezoidal groove 42 is formed in the connecting rod 41. One end of the sliding block 43 is located in the trapezoidal groove 42. There are two rollers 401, and the two rollers 401 are respectively rotatably installed on both sides of the sliding block 43, and both rollers 401 are located in the trapezoidal groove 42. The fixed block 44 is fixedly installed on one side of the sliding block 43. The sleeve plate 45 is located above the sliding block 43, and the sleeve plate 45 is sleeved with the sliding block 43. The rotating shaft 47 is fixedly installed on one side of the sleeve plate 45. The rotating roller 48 is sleeved on the rotating shaft 48, and the rotating roller 48 is rotatably connected to the rotating shaft 47. The lower end of the first spring 49 is fixedly connected to the fixed block 44, and the upper end of the first spring 49 is fixedly connected to the rotating shaft 47. The grip rod 46 is fixedly installed on the other side of the sleeve plate 45. A rubber sleeve is sleeved on the grip rod 46, and anti-slip lines are formed on the outer wall of the rubber sleeve. The depth of the anti-slip lines is 1 mm. By means of the pressure roller device 4, move the grip rod 46 to make the roller 401 slide in the trapezoidal groove 42. Secondly, under the pulling force of the first spring 49, the rotating shaft 47 presses the metallized film body 3 downward, and at the same time makes the rotating roller 48 roll on the bottom plate 21, which is convenient for keeping the metallized film body 3 on the bottom plate 21 flat;

[0032] The pressing device 5 includes a slider 51, a second spring 52, a pull rod 53, a pressing block 55, a convex block 56, a third spring 57, an arc-shaped block 58, and a top plate 59. The arc-shaped block 58 is fixedly installed on the fixed plate 6. The top plate 59 is fixedly installed on the front surface of the arc-shaped block 58. The rear end of the arc-shaped block 58 is in contact with the bottom plate 21. The slider 51 is located above the arc-shaped block 58, and the slider 51 is slidably connected to the arc-shaped block 58. The second spring 52 is located between the slider 51 and the top plate 59. One end of the second spring 52 is fixedly connected to the top plate 59, and the other end of the second spring 52 is fixedly connected to the slider 51. A card slot 54 is formed at the rear side of the slider 51. The convex block 56 is clamped in the card slot 54, and the convex block 56 is slidably connected to the slider 51 through the card slot 54. The third spring 57 is fixedly installed at the upper end of the convex block 56, and the upper end of the third spring 57 is in contact with the upper end inner wall of the card slot 54. The pressing block 55 is fixedly installed at the rear side of the convex block 56. The pull rod 53 is fixedly installed at the upper end of the convex block 56. The four corners of the pull rod 53 are arc-shaped. The height of the pull rod 53 is lower than the height of the rotating shaft. A groove 501 is formed at the lower end of the pressing plate 22. The pressing block 55 is located in the groove 501. The lower end of the pressing block 55 is in contact with the bottom plate 21, and the contact corner between the pressing block 55 and the bottom plate 21 is arc-shaped. By means of the pressing device 5, the metallized film body 3 is laid flat on the bottom plate 21. By pulling the pull rod 53, the third spring 57 is compressed to align the metallized film body 3 with the bottom plate 21. Then, under the elastic force of the third spring 57, the pressing block 55 presses the metallized film body 3, effectively preventing the metallized film body 3 from moving, which is convenient for measurement.

[0033] In use, the metallized film sheet resistance measuring device 1 is composed of a base, a probe longitudinal sliding rod, and a probe. When measuring the sheet resistance of the metallized film, first move the probe upward along the longitudinal sliding rod by a certain distance. After laying the metallized film body 3 flat on the base, then move the probe downward along the longitudinal sliding rod by a certain distance until the surface of the probe is in good contact with the surface of the metallized film body 3. Without the measuring auxiliary device of the present invention, the following main defects exist: (1) Since the film is thin, it is generally very difficult to lay flat and is very easy to wrinkle, and the wrinkle has a great influence on the measurement result; (2) When measuring the sheet resistance at different positions, it is necessary to move the film again and lay it flat again, which not only takes a long time, but also is very difficult to lay flat after moving; (3) When measuring the sheet resistance at different positions, due to the wrinkling of the film, it is very difficult for the edge of the film to completely coincide with the scale on the base, so it is very difficult to determine the accurate coordinates of the measurement position. Through the reasonable design of the bottom plate 21, the pressing plate 22, and the measuring holes 24 on the pressing plate 22, a device is essentially formed that can assist the sheet resistance tester to quickly and accurately measure the sheet resistance at the specified position on the metallized film body 3 with a relatively thin thickness (several microns). This metallized film sheet resistance measuring auxiliary device 2 can complete the measurement of the sheet resistance at the specified position, and at the same time can increase the measurement speed by about 10 times; secondly, through the pressing device 5, the metallized film body 3 is laid flat on the bottom plate 21. By pulling the pull rod 53, the third spring 57 is compressed, and the metallized film body 3 is aligned with the bottom plate 21. Then, under the elastic force of the third spring 57, the pressing block 55 presses the metallized film body 3, effectively preventing the metallized film body 3 from moving and facilitating the measurement; through the pressure roller device 4, move the grip rod 46 to make the roller 401 slide in the trapezoidal groove 42. Secondly, under the pulling force of the first spring 49, the rotating shaft 47 presses the rotating roller 48 downward on the metallized film body 3, and at the same time makes the rotating roller 48 roll on the bottom plate 21, facilitating the metallized film body 3 on the bottom plate 21 to be kept flat.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for measuring the sheet resistance of a metallized film, comprising a device (1) for measuring the sheet resistance of a metallized film, characterized in that: A metallized film sheet resistance measurement auxiliary device (2) is placed on the upper end of the metallized film sheet resistance measurement device (1). The metallized film sheet resistance measurement auxiliary device (2) includes a bottom plate (21), a pressing plate (22) and a connecting member (23). The pressing plate (22) is located at the upper end of the bottom plate (21), and the pressing plate (22) is hinged to the bottom plate (21) through the connecting member (23). A measurement hole (24) is provided at the upper end of the pressing plate (22). A metallized film body (3) is placed between the bottom plate (21) and the pressing plate (22), and the metallized film body (3) is laid flat on the upper end of the bottom plate (21). There are thirty-three measurement holes (24), and the thirty-three measurement holes (24) are arranged horizontally. The measurement holes (24) on the pressing plate (22) are opened according to the scale lines according to the requirements of the sheet resistance measurement position. The edges of the bottom plate (21) and the pressing plate (22) are completely aligned. When the metallized film body (3) is fixed to the bottom plate (21), its edge line is aligned with the edge line of the bottom plate (21). When the pressing plate (22) is lowered, the edge line of the metallized film body (3) is simultaneously aligned with the edge line of the pressing plate (22). A fixing plate (6) is fixedly installed on the front surface of the bottom plate (21), and a pressing roller device (4) and a pressing device (5) are provided on the fixing plate (6). The pressing roller device (4) includes a connecting rod (41), a sliding block (43), a fixing block (44), a sleeve plate (45), a grip rod (46), a rotating shaft (47), a rotating roller (48), a first spring (49) and a roller (401). The connecting rod (41) is fixedly installed on one side of the fixing plate (6). A trapezoidal groove (42) is provided on the connecting rod (41). One end of the sliding block (43) is located in the trapezoidal groove (42). There are two rollers (401), and the two rollers (401) are respectively rotatably installed on both sides of the sliding block (43), and both rollers (401) are located in the trapezoidal groove (42). The fixing block (44) is fixedly installed on one side of the sliding block (43). The sleeve plate (45) is located above the sliding block (43), and the sleeve plate (45) is sleeved with the sliding block (43). The rotating shaft (47) is fixedly installed on one side of the sleeve plate (45). The rotating roller (48) is sleeved on the rotating shaft (47), and the rotating roller (48) is rotatably connected to the rotating shaft (47). The lower end of the first spring (49) is fixedly connected to the fixing block (44), and the upper end of the first spring (49) is fixedly connected to the rotating shaft (47). The grip rod (46) is fixedly installed on the other side of the sleeve plate (45). The pressing device (5) includes a slider (51), a second spring (52), a pull rod (53), a pressing block (55), a convex block (56), a third spring (57), an arc-shaped block (58) and a top plate (59). The arc-shaped block (58) is fixedly installed on the fixing plate (6). The top plate (59) is fixedly installed on the front surface of the arc-shaped block (58). The rear end of the arc-shaped block (58) is in contact with the bottom plate (21). The slider (51) is located at the upper end of the arc-shaped block (58), and the slider (51) is slidably connected to the arc-shaped block (58). The second spring (52) is located between the slider (51) and the top plate (59). One end of the second spring (52) is fixedly connected to the top plate (59), and the other end of the second spring (52) is fixedly connected to the slider (51). A clamping groove (54) is formed at the rear side of the slider (51). The convex block (56) is clamped in the clamping groove (54), and the convex block (56) is slidably connected to the slider (51) through the clamping groove (54). The third spring (57) is fixedly installed at the upper end of the convex block (56), and the upper end of the third spring (57) is in contact with the upper end inner wall of the clamping groove (54). The pressing block (55) is fixedly installed at the rear side of the convex block (56). The pull rod (53) is fixedly installed at the upper end of the convex block (56).

2. The auxiliary device for measuring the sheet resistance of a metallized film according to claim 1, wherein: A rubber sleeve is sleeved on the grip rod (46). Anti-slip lines are provided on the outer wall of the rubber sleeve, and the depth of the anti-slip lines is one millimeter.

3. An auxiliary device for measuring the sheet resistance of a metallized film according to claim 2, characterized in that: The four corners of the pull rod (53) are rounded, and the height of the pull rod (53) is lower than the height of the rotating shaft (47).

4. The auxiliary device for measuring the sheet resistance of a metallized film according to claim 3, wherein: A groove (501) is formed at the lower end of the pressing plate (22). The pressing block (55) is located in the groove (501). The lower end of the pressing block (55) is in contact with the bottom plate (21), and the contact corner between the pressing block (55) and the bottom plate (21) is arc-shaped.

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