A testing device and method for testing the viscosity of adhesive

Abstract

The present invention discloses a test device capable of testing the viscosity of adhesives and a test method thereof, which relates to the field of test devices, including a device substrate, the upper surface of the device substrate is rotatably connected with a test substrate, the upper end of the test substrate is fixedly connected with a limiting end plate, a retractable assembly is slidably connected to the limiting end plate, and the upper surface of the test substrate is respectively provided with a test ball placement assembly, a scraper assembly and a pressure tape assembly from left to right, and one end of the retractable assembly is movably connected to the test ball placement assembly through a driving connecting rod. The present invention provides a pressure tape assembly, and when the adhesive to be tested is a tape-type adhesive, a tape to be tested of an appropriate length is cut, and the tape is placed on the test area on the upper surface of the test substrate with the adhesive surface facing upward, and the tape pressing plate is pressed down, and the positioning rod is plugged into the positioning socket, so that the tape pressing plate can press the tape to be tested, thereby expanding the scope of adhesives applicable to the device.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and more particularly to a testing device capable of testing the viscosity of an adhesive and a testing method thereof. Background Art

[0002] Adhesive is a substance with excellent bonding properties. It connects objects by surface bonding through adhesion and cohesion. It can connect the same or two or more homogeneous or heterogeneous parts together. It is an organic or inorganic, natural or synthetic substance with sufficient strength after curing. It is collectively called adhesive or bonding agent, adhesive, and is usually referred to as glue. There are many types of colloids, which can be divided into thermosetting, hot melt, room temperature curing, pressure sensitive, etc. according to the application method. Due to the variety of application methods and types, adhesives have different degrees of viscosity.

[0003] However, in actual use, when testing the viscosity of adhesives, most of the time, an initial tack tester is used to test the viscosity of adhesives. However, during the use of the initial tack tester, the retention time of the test steel ball when rolling over the adhesive needs to be manually observed and recorded, which is inefficient and the detection is not accurate enough. In addition, the initial tack tester is suitable for pressure-sensitive tapes and has a single range of applicable adhesives. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a testing device and a testing method thereof capable of testing the viscosity of an adhesive, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a testing device capable of testing the viscosity of an adhesive, comprising a device substrate, the upper surface of the device substrate is rotatably connected with a testing substrate, the upper end of the testing substrate is fixedly connected with a limiting end plate, a retracting assembly is slidably connected with the limiting end plate, a testing ball placing assembly, a scraping glue assembly and a pressing tape assembly are respectively arranged on the upper surface of the testing substrate from left to right, one end of the retracting assembly is movably connected with the testing ball placing assembly through a driving connecting rod, a testing rolling ball is placed in the testing ball placing assembly and on the upper surface of the testing substrate, a pair of photoelectric sensor switches are arranged on the pressing tape assembly, pressing tape grooves corresponding vertically to the pressing tape assembly are opened on both sides of the testing substrate, the upper surface of the testing substrate and between the two pressing tape grooves are a testing area, a ball blocking end plate is fixedly connected to the upper surface of the device substrate and near one end of the testing substrate away from the limiting end plate, and a timer controlled by a photoelectric sensor switch is fixedly connected to the outer surface of the ball blocking end plate.

[0006] As a preferred technical solution of the present invention, the upper surface of the device substrate is fixedly connected to a fixed connecting plate, and the end of the test substrate is fixedly connected to two clamping plates respectively clamped on both sides of the fixed connecting plate, and the two clamping plates are penetrated by first positioning studs threadedly connected to the fixed connecting plate, and both sides of one end of the test substrate close to the limiting end plate are rotatably connected to one end of a movable rod through a rotating column, and the other ends of the two movable rods are rotatably connected to the outer surfaces on both sides of one end of the device substrate through a rotating column.

[0007] As a preferred technical solution of the present invention, the retractable and extendable assembly includes a push-pull column slidably inserted on the limit end plate, a first return spring is sleeved on the outer surface of the push-pull column and on the outside of the limit end plate, the push-pull column is fixedly connected to the limit block on one end close to the first return spring, and the push-pull column is rotatably connected to one end of the driving connecting rod through a rotating column at one end away from the limit block.

[0008] As a preferred technical solution of the present invention, the test ball placement assembly includes a fixed half ring fixedly connected to the upper surface of the test substrate, the other end of the driving connecting rod is rotatably connected to the moving half ring through a rotating column, one end of the moving half ring is rotatably connected to the upper surface of the test substrate through a rotating column, and the test rolling ball is placed between the fixed half ring and the moving half ring.

[0009] As a preferred technical solution of the present invention, the tape pressing assembly includes two tape pressing plates respectively arranged on both sides of the test substrate, and both ends of the two tape pressing plates are fixedly connected with plug-in slide rods that are slidably plugged into the test substrate through plug-in holes, and a pair of photoelectric sensor switches are respectively fixedly connected to the relative inner surfaces of the two tape pressing plates.

[0010] As a preferred technical solution of the present invention, a positioning rod is slidably connected to the lower end of the plug-in slide rod, a second return spring is sleeved on the positioning rod, and a connecting frame plate is fixedly connected to the outer surfaces of both sides of the test substrate, and a positioning hole is provided on the connecting frame plate for plugging the positioning rod.

[0011] As a preferred technical solution of the present invention, the scraper assembly includes a support frame fixedly connected to the test substrate, a scraper rod is slidably connected to the support frame, a ring is sleeved on one end of the scraper rod close to the support frame, a limiting ball rod is fixedly connected to the ring and passes through the support frame, and the limiting ball rod is internally threaded with a second positioning stud whose end contacts the surface of the scraper rod.

[0012] A test method capable of testing the viscosity of an adhesive, the method steps are as follows:

[0013] Step 1: applying the adhesive to be tested on the test area on the upper surface of the test substrate;

[0014] Step 2: manually press the limit block to compress the first return spring, slide the push-pull column toward the test ball placement assembly, and drive the connecting rod to rotate by being pushed by the push-pull column, so that the movable half ring rotates, and the distance between the lower ends of the fixed half ring and the movable half ring is pulled apart, so that the test ball slides downward along the upper surface of the test substrate;

[0015] Step 3, based on step 2, the test ball slides downward along the upper surface of the test substrate to the adhesive to be tested on the test area, and the photoelectric sensor switch detects and senses the test ball;

[0016] Step 4: Based on step 3, the photoelectric sensor switch senses the test ball transmission switch signal to control the timer to start timing;

[0017] Step 5, based on step 4, when the photoelectric sensor switch senses the test ball, the timer is started to start timing, and when the photoelectric sensor switch does not sense the test ball, the timer is stopped to stop timing;

[0018] Step six, based on step five, measure the time that the test ball stays on the test area due to the viscosity of the tested adhesive, and determine the viscosity between different tested adhesives through different retention times.

[0019] As a preferred technical solution of the present invention, in step one, when the adhesive to be tested is a tape-type adhesive, a tape to be tested is cut into an appropriate length and placed with the adhesive surface facing up on the test area on the upper surface of the test substrate. By pressing the tape pressing plate, the positioning rod is inserted into the positioning socket, and the tape pressing plate presses the tape to be tested and waits for it to be tested.

[0020] As a preferred technical solution of the present invention, before the implementation of step 2, a test ball of suitable mass is selected and placed in the area between the fixed half ring and the movable half ring.

[0021] Technical effects and advantages of the present invention:

[0022] 1. Compared with the prior art, by setting up a tape pressing assembly, when the adhesive to be tested is a tape-type adhesive, a tape to be tested is cut into a suitable length, and the tape is placed with the adhesive surface facing up on the test area on the upper surface of the test substrate. By pressing the tape pressing plate and inserting the positioning rod into the positioning socket, the tape pressing plate can press the tape to be tested, thereby expanding the scope of adhesives applicable to the device.

[0023] 2. Compared with the existing technology, by setting up a photoelectric sensor switch and a timer, the sensor detects the retention of objects, and the timer is used to replace manual observation testing. Compared with manual appearance inspection, this detection is more accurate and efficient.

[0024] 3. Compared with the prior art, by setting up a scraper assembly, the scraper rod is suspended near the upper surface of the test substrate through a sliding scraper rod, and then reciprocatingly slides so that the tested adhesive is pushed by the sliding scraper rod, and the thickness of the adhesive coating is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the retractable component of the present invention.

[0027] Figure 3 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0028] Figure 4 It is a schematic diagram of the scraper rod structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the adhesive tape assembly of the present invention.

[0030] Figure 6 It is a schematic diagram of the structure of the adhesive tape pressing plate of the present invention.

[0031] The accompanying drawings are marked as follows: 1, device substrate; 2, test substrate; 3, limit end plate; 4, retractable assembly; 5, test ball placement assembly; 6, scraper assembly; 7, adhesive tape groove; 8, adhesive tape assembly; 9, ball blocking end plate; 10, timer; 11, photoelectric sensor switch; 12, fixed connecting plate; 13, clamping plate; 14, first positioning stud; 15, active rod; 16, driving connecting rod; 401, push-pull column; 402, the first A return spring; 403, a limit block; 501, a fixed half ring; 502, a movable half ring; 503, a test ball; 601, a support frame; 602, a scraper rod; 603, a sleeve ring; 604, a limit ball rod; 605, a second positioning stud; 801, a tape pressure plate; 802, a plug-in slide rod; 803, a plug-in hole; 804, a connecting frame plate; 805, a positioning plug hole; 806, a positioning plug rod; 807, a second return spring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] As attached Figure 1-6The test device shown in the figure can test the viscosity of the adhesive, including a device substrate 1, the upper surface of the device substrate 1 is rotatably connected to a test substrate 2, the upper end of the test substrate 2 is fixedly connected to a limit end plate 3, and a retractable assembly 4 is slidably connected to the limit end plate 3. The upper surface of the test substrate 2 is respectively provided with a test ball placement assembly 5, a scraper assembly 6 and a pressure tape assembly 8 from left to right, one end of the retractable assembly 4 is movably connected to the test ball placement assembly 5 through a driving connecting rod 16, and a test ball placement assembly 5 is placed in the test ball placement assembly 5 and on the upper surface of the test substrate 2. The test ball 503, a pair of photoelectric sensor switches 11 are arranged on the pressure tape assembly 8, pressure tape grooves 7 vertically corresponding to the pressure tape assembly 8 are opened on both sides of the test substrate 2, the upper surface of the test substrate 2 and between the two pressure tape grooves 7 are the test area, the upper surface of the device substrate 1 and the ball blocking end plate 9 is fixedly connected near the end of the test substrate 2 away from the limit end plate 3, and the outer surface of the ball blocking end plate 9 is fixedly connected with a timer 10 controlled by the photoelectric sensor switch 11, so as to realize the implementation process of the following steps:

[0034] Step 1: applying the adhesive to be tested on the test area on the upper surface of the test substrate 2;

[0035] Step 2: manually press the limit block 403 to compress the first return spring 402, and the push-pull column 401 slides toward the test ball placement assembly 5, and the driving connecting rod 16 is pushed by the push-pull column 401 to rotate, so that the movable half ring 502 rotates, and the distance between the lower ends of the fixed half ring 501 and the movable half ring 502 is pulled apart, so that the test ball 503 slides downward along the upper surface of the test substrate 2;

[0036] Step 3: Based on step 2, the test ball 503 slides downward along the upper surface of the test substrate 2 to the adhesive to be tested on the test area, and the photoelectric sensor switch 11 detects and senses the test ball 503;

[0037] Step 4: Based on step 3, the photoelectric sensor switch 11 senses the switch signal transmitted by the test ball 503 to control the timer 10 to start timing;

[0038] Step 5, based on step 4, when the photoelectric sensor switch 11 senses the test ball 503, the timer 10 is started to start timing, and when the photoelectric sensor switch 11 does not sense the test ball 503, the timer 10 is stopped to stop timing;

[0039] Step six, based on step five, measure the time that the test ball 503 stays on the test area due to the viscosity of the tested adhesive, and determine the viscosity between different tested adhesives through different retention times.

[0040] Among them, in a preferred embodiment, as shown in the attached Figure 1 As shown, a fixed connecting plate 12 is fixedly connected to the upper surface of the device substrate 1, and two clamping plates 13 are fixedly connected to the end of the test substrate 2, which are respectively clamped on both sides of the fixed connecting plate 12. The two clamping plates 13 are pierced with first positioning studs 14 threadedly connected to the fixed connecting plate 12. Both sides of one end of the test substrate 2 close to the limiting end plate 3 are rotatably connected to one end of a movable rod 15 through a rotating column, and the other ends of the two movable rods 15 are rotatably connected to the outer surfaces of both sides of one end of the device substrate 1 through a rotating column. When the first positioning studs 14 are tightened, the test substrate 2 and the device substrate 1 cannot rotate, and the angle cannot change. When the first positioning studs 14 are loosened, the angle between the test substrate 2 and the device substrate 1 can be adjusted within a certain limit. The larger the angle between the test substrate 2 and the device substrate 1, the steeper the slope of the upper surface of the test substrate 2, and the greater the rolling inertia of the test ball 503.

[0041] Among them, in a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, the retracting and releasing component 4 includes a push-pull column 401 which is slidably inserted into the limit end plate 3, and a first return spring 402 is sleeved on the outer surface of the push-pull column 401 and on the outer side of the limit end plate 3. The push-pull column 401 is fixedly connected to a limit block 403 on one end close to the first return spring 402, and the push-pull column 401 is rotatably connected to one end of the driving connecting rod 16 through a rotating column. The test ball placing component 5 includes a fixed semi-ring 501 fixedly connected to the upper surface of the test substrate 2, and the other end of the driving connecting rod 16 is rotatably connected to a movable semi-ring 502 through a rotating column, and one end of the movable semi-ring 502 is rotatably connected to the upper surface of the test substrate 2 through a rotating column. The test ball 503 is placed between the fixed semi-ring 501 and the movable semi-ring 502, so that when testing, the test ball 503 is restricted by the area between the fixed semi-ring 501 and the movable semi-ring 502, and can roll down freely when released without any extra external driving force.

[0042] In a preferred embodiment, as shown in the attached Figure 1 , Attachment Figure 5 and attached Figure 6As shown, the tape pressing assembly 8 includes two tape pressing plates 801 respectively arranged on both sides of the test substrate 2, both ends of the two tape pressing plates 801 are fixedly connected with plug-in slide bars 802 slidably plugged into the test substrate 2 through plug-in holes 803, a pair of photoelectric sensor switches 11 are respectively fixedly connected to the relatively inner surfaces of the two tape pressing plates 801, the lower ends of the plug-in slide bars 802 are slidably connected with positioning rods 806, and the positioning rods 806 are sleeved with second reset springs 807, and the outer surfaces of both sides of the test substrate 2 are fixedly connected with connecting frame plates 804, and the connecting frame plates 804 are provided with positioning holes 805 for plugging the positioning rods 806, so that when the adhesive to be detected is a tape-type adhesive, Cut a tape to be tested of appropriate length, place it with the adhesive surface facing up on the test area on the upper surface of the test substrate 2, and press the tape pressing plate 801 to move the tape pressing plate 801 downward, and the positioning rod 806 slides downward, and the positioning rod 806 moves to the corresponding position of the positioning socket 805. Due to the action of the second reset spring 807, the positioning rod 806 is plugged into the positioning socket 805, and the tape pressing plate 801 presses the tape to be tested and waits for it to be tested. In addition, since the positioning rod 806 will also slide on the plug-in slide bar 802, in order to disengage the positioning rod 806 from the plug-in slide bar 802, one end of the second reset spring 807 is fixedly connected to the positioning rod 806, and the other end of the second reset spring 807 is fixedly connected to the outer surface of the plug-in slide bar 802.

[0043] In a preferred embodiment, as shown in the attached Figure 1 , Attachment Figure 3 and attached Figure 4 As shown, the scraper assembly 6 includes a support frame 601 fixedly connected to the test substrate 2, a scraper rod 602 is slidably connected to the support frame 601, a sleeve ring 603 is sleeved on one end of the scraper rod 602 close to the support frame 601, a limiting ball rod 604 passing through the support frame 601 is fixedly connected to the sleeve ring 603, and a second positioning stud 605 whose end abuts against the surface of the scraper rod 602 is internally threadedly connected to the limiting ball rod 604, so that the scraper rod 602 can be moved by sliding the scraper rod 602. It is suspended near the upper surface of the test substrate 2, and then slides back and forth to use the sliding scraper rod 602 to push the adhesive to be tested, so that the thickness of the adhesive coating is more uniform. The ball at the end of the limiting ball rod 604 has a larger diameter to limit the scraper rod 602 from separating from the support frame 601. When the second positioning stud 605 is in a relaxed state, the ring 603 can rotate on the scraper rod 602 to change direction, and the second positioning stud 605 is tightened so that the ring 603 cannot rotate on the scraper rod 602.

[0044] According to the specific content of the above-mentioned testing device capable of testing the viscosity of the adhesive, a testing method capable of testing the viscosity of the adhesive is implemented, and the steps of the testing method are as follows:

[0045] Step 1: applying the adhesive to be tested on the test area on the upper surface of the test substrate 2;

[0046] Step 2: manually press the limit block 403 to compress the first return spring 402, and the push-pull column 401 slides toward the test ball placement assembly 5, and the driving connecting rod 16 is pushed by the push-pull column 401 to rotate, so that the movable half ring 502 rotates, and the distance between the lower ends of the fixed half ring 501 and the movable half ring 502 is pulled apart, so that the test ball 503 slides downward along the upper surface of the test substrate 2;

[0047] Step 3: Based on step 2, the test ball 503 slides downward along the upper surface of the test substrate 2 to the adhesive to be tested on the test area, and the photoelectric sensor switch 11 detects and senses the test ball 503;

[0048] Step 4: Based on step 3, the photoelectric sensor switch 11 senses the switch signal transmitted by the test ball 503 to control the timer 10 to start timing;

[0049] In step 3 and step 4, the photoelectric sensor switch 11 adopts an infrared photoelectric switch of an infrared photoelectric sensor. The infrared photoelectric switch is a type of photoelectric proximity switch. It uses the shielding or reflection of the infrared beam by the detected object. When the detected object passes by, a sufficient amount of light emitted by the photoelectric switch transmitter is reflected to the receiver, so the photoelectric switch generates a switch signal, which generates a switch signal for controlling the timer.

[0050] Step 5, based on step 4, when the photoelectric sensor switch 11 senses the test ball 503, the timer 10 is started to start timing, and when the photoelectric sensor switch 11 does not sense the test ball 503, the timer 10 is stopped to stop timing;

[0051] Step six, based on step five, measure the time that the test ball 503 stays on the test area due to the viscosity of the tested adhesive, and determine the viscosity between different tested adhesives through different retention times.

[0052] Among them, in step 1, when the adhesive to be tested is a tape-type adhesive, a tape to be tested is cut into a suitable length, and the tape is placed on the test area on the upper surface of the test substrate 2 with the adhesive surface facing upward, and the tape pressing plate 801 is pressed down, and the positioning rod 806 is inserted into the positioning socket 805, and the tape pressing plate 801 presses the tape to be tested and waits for testing;

[0053] Before the implementation of step 2, a test ball 503 of suitable mass is selected and placed in the area between the fixed half ring 501 and the movable half ring 502, so as to ensure that the test ball 503 is too light to stay on the adhesive for a long time without moving, and too medium to stay on the adhesive.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A testing device capable of testing the viscosity of an adhesive, comprising a device substrate (1), characterized in that: The upper surface of the device substrate (1) is rotatably connected to a test substrate (2); the upper end of the test substrate (2) is fixedly connected to a limiting end plate (3); a retractable assembly (4) is slidably connected to the limiting end plate (3); a test ball placement assembly (5), a scraper assembly (6) and a pressure tape assembly (8) are respectively arranged on the upper surface of the test substrate (2) from left to right; one end of the retractable assembly (4) is movably connected to the test ball placement assembly (5) via a driving connecting rod (16); a test rolling ball (16) is placed in the test ball placement assembly (5) and on the upper surface of the test substrate (2); 503), a pair of photoelectric sensor switches (11) are arranged on the pressing tape assembly (8), pressing tape grooves (7) vertically corresponding to the pressing tape assembly (8) are opened on both sides of the test substrate (2), the upper surface of the test substrate (2) and between the two pressing tape grooves (7) are the test area, the upper surface of the device substrate (1) and near the end of the test substrate (2) away from the limit end plate (3) are fixedly connected with a ball blocking end plate (9), and the outer surface of the ball blocking end plate (9) is fixedly connected with a timer (10) controlled by the photoelectric sensor switch (11); The retractable assembly (4) comprises a push-pull column (401) slidably plugged into the limit end plate (3), a first return spring (402) is sleeved on the outer surface of the push-pull column (401) and on the outer side of the limit end plate (3), one end of the push-pull column (401) close to the first return spring (402) is fixedly connected to a limit block (403), and one end of the push-pull column (401) away from the limit block (403) is rotatably connected to one end of the driving connecting rod (16) via a rotating column; The test ball placement assembly (5) comprises a fixed half ring (501) fixedly connected to the upper surface of the test substrate (2); the other end of the driving connecting rod (16) is rotatably connected to the moving half ring (502) via a rotating column; one end of the moving half ring (502) is rotatably connected to the upper surface of the test substrate (2) via a rotating column; and the test rolling ball (503) is placed between the fixed half ring (501) and the moving half ring (502); The adhesive tape pressing assembly (8) comprises two adhesive tape pressing plates (801) respectively arranged on both sides of the test substrate (2), both ends of the two adhesive tape pressing plates (801) are fixedly connected with plug-in slide bars (802) which are slidably plugged into the test substrate (2) through plug-in holes (803), and a pair of photoelectric sensor switches (11) are respectively fixedly connected to the opposite inner surfaces of the two adhesive tape pressing plates (801); The lower end of the plug-in slide rod (802) is slidably connected with a positioning rod (806), and the positioning rod (806) is sleeved with a second return spring (807). The outer surfaces of both sides of the test substrate (2) are fixedly connected with a connecting frame plate (804), and the connecting frame plate (804) is provided with a positioning hole (805) for plugging the positioning rod (806).

2. A testing device capable of testing the viscosity of an adhesive according to claim 1, characterized in that: The upper surface of the device substrate (1) is fixedly connected to a fixed connecting plate (12); the end of the test substrate (2) is fixedly connected to two clamping plates (13) respectively clamped on both sides of the fixed connecting plate (12); the two clamping plates (13) are penetrated by first positioning studs (14) threadedly connected to the fixed connecting plate (12); both sides of one end of the test substrate (2) close to the limiting end plate (3) are rotatably connected to one end of a movable rod (15) through a rotating column; the other ends of the two movable rods (15) are rotatably connected to the outer surfaces of both sides of one end of the device substrate (1) through a rotating column.

3. A testing device capable of testing the viscosity of an adhesive according to claim 1, characterized in that: The scraper assembly (6) comprises a support frame (601) fixedly connected to the test substrate (2), a scraper rod (602) being slidably connected to the support frame (601), a sleeve ring (603) being sleeved on one end of the scraper rod (602) close to the support frame (601), a limiting ball rod (604) passing through the support frame (601) being fixedly connected to the sleeve ring (603), and a second positioning stud (605) having an end portion abutting against the surface of the scraper rod (602) being internally threadedly connected to the limiting ball rod (604).

4. A method for testing the viscosity of an adhesive, using a testing device for testing the viscosity of an adhesive as claimed in claim 3, characterized in that: The steps are as follows: Step 1: applying the adhesive to be tested on the test area on the upper surface of the test substrate (2); Step 2: manually press the limit block (403) so that the first return spring (402) is compressed, the push-pull column (401) slides toward the test ball placement assembly (5), and the driving connecting rod (16) is pushed by the push-pull column (401) to rotate, so that the movable half ring (502) rotates, and the distance between the lower ends of the fixed half ring (501) and the movable half ring (502) is pulled apart, so that the test rolling ball (503) slides downward along the upper surface of the test substrate (2); Step 3, based on step 2, the test ball (503) slides downward along the upper surface of the test substrate (2) to reach the adhesive to be tested on the test area, and at the same time, the photoelectric sensor switch (11) detects and senses the test ball (503); Step 4: Based on step 3, the photoelectric sensor switch (11) senses the test ball (503) and transmits a switch signal to control the timer (10) to start timing; Step 5, based on step 4, when the photoelectric sensor switch (11) senses the test ball (503), the timer (10) is started to start timing, and when the photoelectric sensor switch (11) does not sense the test ball (503), the timer (10) is stopped to stop timing; Step six, based on step five, the time that the test ball (503) stays on the test area due to the viscosity of the tested adhesive is measured, and the viscosity of different tested adhesives is determined by different retention times.

5. A test method capable of testing the viscosity of an adhesive according to claim 4, characterized in that: In step one, when the adhesive to be tested is a tape-type adhesive, a piece of the tape to be tested is cut into a suitable length and placed with the adhesive surface facing upward on the test area on the upper surface of the test substrate (2). By pressing the tape pressing plate (801), the positioning rod (806) is inserted into the positioning socket (805), and the tape pressing plate (801) presses the tape to be tested and waits for it to be tested.

6. A test method capable of testing the viscosity of an adhesive according to claim 5, characterized in that: Before the implementation of step 2, a test rolling ball (503) of suitable mass is selected and placed in the area between the fixed half ring (501) and the movable half ring (502).

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