Hot melt adhesive performance detection device and method

Abstract

The invention relates to the technical field of hot melt adhesive performance detection, and particularly discloses a hot melt adhesive performance detection device and method.The hot melt adhesive performance detection device comprises a bonding sample assembly, a stretching assembly, a locking assembly, a rotating assembly and a side pushing assembly, and the bonding sample assembly comprises two bonding sample plates; the stretching assembly is used for applying a pressing force for mutual pressing and a pulling force for mutual separation to the two bonding sample plates; the locking assembly is used for locking and loosening one bonding sample plate; the rotating assembly is used for applying torsion rotating in the circumferential direction to the other bonding sample plate and driving the two bonding sample plates to rotate together; the lateral pushing assembly is used for applying lateral force for moving in the second direction to the other bonding sample plate when one bonding sample plate is locked by the locking assembly. According to the invention, the longitudinal bonding strength, the lateral bonding strength and the circumferential bonding strength of the hot melt adhesive can be detected, different actual use scenes of the hot melt adhesive are effectively simulated, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot melt adhesive performance detection, and particularly relates to a hot melt adhesive performance detection device and method. BACKGROUND

[0002] Hot melt adhesive is a 100% solid meltable polymer without solvent and moisture; it is solid at room temperature, and becomes a liquid with certain viscosity when heated to a certain temperature. In the process of producing and manufacturing hot melt adhesive, the performance of hot melt adhesive needs to be tested, especially the bonding strength of hot melt adhesive. At present, some test devices that can automatically test the bonding strength of hot melt adhesive appear on the market. However, the existing test devices can only stretch in the longitudinal direction to detect the tensile force borne by hot melt adhesive after bonding. In different use scenarios, the two objects bonded by hot melt adhesive will not only have a relative moving tensile force, but also have a lateral tangential force of relative movement to different sides and a circumferential tangential force of relative rotation to different circumferences. The existing test device can only detect the longitudinal bonding strength of hot melt adhesive, and cannot detect the lateral bonding strength and the circumferential bonding strength of hot melt adhesive, so it is difficult to simulate different actual use scenarios of hot melt adhesive, and the detection accuracy is low. SUMMARY The present application aims to provide a hot melt adhesive performance detection device and method to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0003] To solve the above technical problems, the technical scheme adopted by the present application is as follows: The present application provides a hot melt adhesive performance detection device, comprising: An adhesive sample assembly comprising two adhesive sample plates stacked in a first direction, the surfaces of the two adhesive sample plates stacked with each other are adhered to each other by the hot melt adhesive to be tested; A stretching assembly in transmission connection with the two adhesive sample plates, the stretching assembly is used to apply a pressing force to the two adhesive sample plates to press them together in the first direction and a tensile force to move them away from each other in the first direction; A locking assembly for locking and releasing one of the adhesive sample plates; A rotating assembly in transmission connection with the other adhesive sample plate, the rotating assembly is used to apply a torsional force to the other adhesive sample plate to rotate it in a circumferential direction when one of the adhesive sample plates is locked by the locking assembly, and to rotate the two adhesive sample plates together when one of the adhesive sample plates is released by the locking assembly; The side pushing assembly is in transmission connection with the other bonding sample plate, and is used for applying a lateral force in a second direction to the other bonding sample plate when one of the bonding sample plates is locked by the locking assembly, wherein the second direction is perpendicular to the first direction.

[0004] The hot melt adhesive performance detection device has the following advantages: When the longitudinal bonding strength of the hot melt adhesive needs to be detected, the two bonding sample plates are applied with a pulling force away from each other by the stretching assembly; when the circumferential bonding strength of the hot melt adhesive needs to be detected, one of the bonding sample plates is locked by the locking assembly, and then a torsion force in a circumferential direction is applied to the other bonding sample plate by the rotating assembly; when the lateral bonding strength of the hot melt adhesive needs to be detected, one of the bonding sample plates is locked by the locking assembly, and then a lateral force is applied to the other bonding sample plate by the side pushing assembly; during the detection of the lateral bonding strength, the bonding sample plates are unlocked by the locking assembly, and then the two bonding sample plates are rotated to different positions by the rotating assembly, and the bonding sample plates are locked again, and the lateral force applied to the other bonding sample plate by the side pushing assembly is controlled to control the relative movement of the two bonding sample plates in different lateral directions, so that the lateral bonding strength of different positions in the circumferential direction between the two bonding sample plates can be detected. The longitudinal bonding strength, lateral bonding strength and circumferential bonding strength of the hot melt adhesive can be detected, the actual use scenarios of the hot melt adhesive are effectively simulated, and the detection accuracy is improved.

[0005] As a further improvement of the above technical solution, the stretching assembly includes a first mounting seat, a second mounting seat and a stretching driving mechanism, the first mounting seat and the second mounting seat are arranged opposite to each other in the first direction, and the two bonding sample plates are respectively detachably mounted on the opposite surfaces of the first mounting seat and the second mounting seat. The stretching driving mechanism is in transmission connection with the first mounting seat, and is used for driving the first mounting seat to move in the first direction. The locking assembly is used for locking the position of the first mounting seat in the second direction and the position of the first mounting seat rotating around the center axis extending in the first direction. The rotating assembly is in transmission connection with the second mounting seat, and is used for driving the second mounting seat to rotate around the center axis extending in the first direction. The side pushing assembly is in transmission connection with the second mounting seat, and is used for driving the second mounting seat to move in the second direction.

[0006] As a further improvement of the above technical solution, the side pushing assembly includes a side pushing sliding seat and a side pushing driving mechanism for driving the side pushing sliding seat to move in the second direction. The second mounting base and the rotating assembly are mounted to the side pushing slide base.

[0007] As a further improvement of the above technical solution, the second mounting base is rotatably fixed to the top of the side pushing slide base, and the rotating assembly comprises a gear ring fixedly sleeved on the outer periphery of the second mounting base, a driving gear engaged with the gear ring, and a rotating driving member for driving the driving gear to rotate.

[0008] As a further improvement of the above technical solution, the locking assembly comprises a first clamping portion, a second clamping portion, and a locking driving member, the outer periphery of the first mounting base is circumferentially spaced with a plurality of first clamping portions, the locking driving member is in transmission connection with the second clamping portion, and the locking driving member is used to drive the second clamping portion to radially clamp and abut against the first clamping portion, so as to lock the circumferential rotation and lateral movement of the first mounting base.

[0009] As a further improvement of the above technical solution, the locking driving member is slidably adjustable in the first direction.

[0010] As a further improvement of the above technical solution, the top surface of the first mounting base away from the second mounting base is provided with a connecting seat, and the connecting seat is slidably arranged in the radial direction. The stretching driving mechanism has a driving telescopic end in transmission connection with the connecting seat, and the stretching assembly further comprises a transverse movement driving mechanism in transmission connection with the stretching driving mechanism, and the transverse movement driving mechanism is used to drive the stretching driving mechanism to move in the radial direction, so as to drive the connecting seat to move to the edge and center of the first mounting base.

[0011] As a further improvement of the above technical solution, the opposite surfaces of the first mounting base and the second mounting base are both distributed with a plurality of mounting grooves, and the side wall of the mounting groove is provided with a locking through hole in communication with the outside. The opposite surfaces of the bonding sample plates are distributed with a plurality of plug-in members, the plug-in members are one-to-one plug-in mounted in the mounting grooves, the side wall of the plug-in member is provided with a lock hole opposite to the locking through hole, and the lock hole and the locking through hole are provided with a lock pin.

[0012] As a further improvement of the above technical solution, the first mounting base and the second mounting base are both embedded with heat exchange pipes.

[0013] In addition, the present application also proposes a hot melt adhesive performance detection method, which is suitable for the hot melt adhesive performance detection device, and the hot melt adhesive performance detection method comprises: The hot melt adhesive to be detected is applied to the surface of at least one bonding sample plate; The two adhesive sample boards are pressed together according to a preset pressing force, and cooled and solidified; When the longitudinal adhesive strength of the hot melt adhesive is detected, the two adhesive sample boards are controlled to move away from each other according to a preset pulling force; When the circumferential adhesive strength of the hot melt adhesive is detected, one of the adhesive sample boards is controlled to be locked, and the other adhesive sample board is controlled to rotate circumferentially according to a preset torsion force; When the lateral adhesive strength of the hot melt adhesive is detected, the two adhesive sample boards are controlled to rotate to different lateral detection positions, and in each lateral detection position, one of the adhesive sample boards is controlled to be locked, and the other adhesive sample board is controlled to move laterally according to a preset lateral force.

[0014] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and examples; Figure 1 is a schematic view of an embodiment of the hot melt adhesive performance detection device provided by the present application for detecting the lateral adhesive strength of the hot melt adhesive; Figure 2 is Figure 1 is a partial enlarged view of part A in FIG. 1; Figure 3 is a schematic view of an embodiment of the hot melt adhesive performance detection device provided by the present application for detecting the longitudinal adhesive strength of the hot melt adhesive from the center of the adhesive sample assembly; Figure 4 is a schematic view of an embodiment of the hot melt adhesive performance detection device provided by the present application for detecting the circumferential adhesive strength of the hot melt adhesive; Figure 5 is a top view of an embodiment of the first mounting seat provided by the present application; Figure 6 is a schematic view of an embodiment of the hot melt adhesive performance detection device provided by the present application for detecting the longitudinal adhesive strength of the hot melt adhesive from the edge of the adhesive sample assembly; Figure 7 is a flowchart of an embodiment of the hot melt adhesive performance detection method provided by the present application; REFERENCE NUMERALS: adhesive sample assembly 100; adhesive sample board 110; plug-in part 111; lock hole 112; Tension assembly 200; first mounting base 210; connecting seat 211; sliding groove 212; second mounting base 220; tension driving mechanism 230; driving telescopic end 231; transverse movement driving mechanism 240; moving seat 241; transverse movement driving member 242; mounting groove 250; locking through hole 251; locking pin 260; heat exchange pipe 270; Locking assembly 300; first clamping part 310; second clamping part 320; locking driving member 330; Rotary assembly 400; gear ring 410; driving gear 420; rotary driving member 430; Side pushing assembly 500; side pushing sliding seat 510; connecting shaft 511; side pushing driving mechanism 520; Frame 600. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0017] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of describing the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0018] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0019] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0020] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the following described embodiments are part of the embodiments of the present application, not all embodiments.

[0021] The existing hot melt adhesive bonds two objects, and in different use scenarios, the two objects will not only have a relatively far away pulling force, but also have a lateral tangential force of relatively moving to different sides and a circumferential tangential force of relatively rotating to different circumferences. The existing test device cannot simultaneously detect the longitudinal bonding strength, the lateral bonding strength and the circumferential bonding strength of the hot melt adhesive, is difficult to simulate different actual use scenarios of the hot melt adhesive, and has low detection accuracy. Therefore, the hot melt adhesive performance detection device is provided to solve the above problems.

[0022] Reference Figures 1-6 The hot melt adhesive performance detection device of the present application is as follows: As Figure 1 shown, the hot melt adhesive performance detection device of the present application embodiment comprises a bonding sample assembly 100, a stretching assembly 200, a locking assembly 300, a rotating assembly 400 and a side pushing assembly 500.

[0023] As Figure 1 and Figure 2 shown, the bonding sample assembly 100 of the present application comprises two bonding sample plates 110. In detection, according to different use scenarios, the bonding sample plates 110 of corresponding material and size are selected. The bonding sample plates 110 can be metal plates or plastic plates. The shape of the bonding sample plates 110 can be circular, rectangular or other special-shaped structures.

[0024] The two bonding sample plates 110 are arranged in a superimposed manner along the up-down direction. In other embodiments, the two bonding sample plates 110 can be arranged in a superimposed manner along other directions. The surfaces of the two bonding sample plates 110 superimposed on each other are adhered to each other by the hot melt adhesive to be detected.

[0025] The stretching assembly 200 of the present embodiment is in driving connection with the two bonding sample plates 110. The stretching assembly 200 is used to apply a pressing force of pressing the two bonding sample plates 110 to each other along the up-down direction and a pulling force of moving the two bonding sample plates 110 away from each other along the up-down direction.

[0026] As Figure 1 and Figure 3 shown, the locking assembly 300 of the present application is used to lock and release one of the bonding sample plates 110. The bonding sample plate 110 in the locked state cannot rotate freely along the circumference and cannot move horizontally.

[0027] As Figure 4 shown, the rotating assembly 400 of the present application is in driving connection with the other bonding sample plate 110. The rotating assembly 400 is used to apply a torsional force of rotating the other bonding sample plate 110 along the circumference when one of the bonding sample plates 110 is locked by the locking assembly 300, and to rotate the two bonding sample plates 110 together when one of the bonding sample plates 110 is released by the locking assembly 300.

[0028] As shown in Figure 1 , the side pushing assembly 500 of the present application is in transmission connection with another bonding sample plate 110, and the side pushing assembly 500 is used to apply a horizontal lateral moving side force to the other bonding sample plate 110 when one of the bonding sample plates 110 is locked by the locking assembly 300.

[0029] As shown in Figure 3 , when the longitudinal bonding strength of the hot melt adhesive needs to be detected, the two bonding sample plates 110 are applied with a mutual moving away tensile force by the tensile assembly 200; as shown in Figure 4 , when the circumferential bonding strength of the hot melt adhesive needs to be detected, one of the bonding sample plates 110 is locked by the locking assembly 300, and then the other bonding sample plate 110 is applied with a circumferential rotating torsion by the rotating assembly 400; as shown in Figure 1 , when the lateral bonding strength of the hot melt adhesive needs to be detected, one of the bonding sample plates 110 is locked by the locking assembly 300, and then the other bonding sample plate 110 is applied with a lateral force by the side pushing assembly 500, and during the detection of the lateral bonding strength, the bonding sample plate 110 is unlocked by the locking assembly 300, at this time, the two bonding sample plates 110 are rotated together to different positions by the rotating assembly 400, and then the bonding sample plate 110 is locked again, and the other bonding sample plate 110 is applied with a lateral force by the side pushing assembly 500 to control the different lateral relative movements between the two bonding sample plates 110, so that the lateral bonding strength detection can be performed at different positions along the circumference between the two bonding sample plates 110, and the longitudinal bonding strength, the lateral bonding strength and the circumferential bonding strength of the hot melt adhesive can be detected by the present application, the different actual use scenarios of the hot melt adhesive can be effectively simulated, and the detection accuracy is improved.

[0030] Further, as shown in Figure 1 , the tensile assembly 200 of the present embodiment includes a first mounting seat 210, a second mounting seat 220 and a tensile driving mechanism 230, the first mounting seat 210 and the second mounting seat 220 are arranged in an up-down direction opposite to each other, and the two bonding sample plates 110 are respectively detachably mounted on the opposite surfaces of the first mounting seat 210 and the second mounting seat 220, after each detection, the two bonding sample plates 110 can be detached from the first mounting seat 210 and the second mounting seat 220, and new bonding sample plates 110 can be replaced for the next detection.

[0031] The stretching driving mechanism 230 of the embodiment is in transmission connection with the first mounting base 210, and can freely rotate without interfering with the rotating movement of the first mounting base 210. The stretching driving mechanism 230 is used to drive the first mounting base 210 to move along the up-down direction, so as to approach and move away from the second mounting base 220, thereby driving the two adhesive test sample plates 110 to approach and move away from each other along the up-down direction.

[0032] The locking assembly 300 of the embodiment is used to lock the position of the first mounting base 210 along the front-back direction and the position of the first mounting base 210 rotating around the central axis extending along the up-down direction, so as to lock the adhesive test sample plate 110 mounted on the first mounting base 210.

[0033] The rotating assembly 400 of the embodiment is in transmission connection with the second mounting base 220, and is used to drive the second mounting base 220 to rotate around the central axis. When the first mounting base 210 is in the loosening state, the second mounting base 220 is driven to rotate together with the first mounting base 210 under the adhesion of the hot melt adhesive, so as to drive the two adhesive test sample plates 110 to rotate together. When the first mounting base 210 is in the locking state, the second mounting base 220 is driven to rotate relative to the first mounting base 210, so as to drive the two adhesive test sample plates 110 to rotate relative to each other.

[0034] When the circumferential adhesion strength of the hot melt adhesive is detected, the second mounting base 220 is driven to rotate in different directions, so as to simulate that the hot melt adhesive is subjected to circumferential tangential forces in two rotating directions.

[0035] As shown in Figure 1 The side pushing assembly 500 of the embodiment is in transmission connection with the second mounting base 220, and is used to drive the second mounting base 220 to move along the front-back direction, so as to drive the two adhesive test sample plates 110 to move relative to each other along the front-back direction.

[0036] Specifically, the side pushing assembly 500 of the embodiment includes a side pushing sliding seat 510 and a side pushing driving mechanism 520 used to drive the side pushing sliding seat 510 to move along the front-back direction. The side pushing sliding seat 510 is slidingly installed on the rack 600 along the front-back direction. The side pushing driving mechanism 520 of the embodiment adopts a linear driving structure such as an electric push rod, a hydraulic cylinder or an air cylinder.

[0037] The second mounting base 220 and the rotating assembly 400 of the embodiment are installed on the side pushing sliding seat 510.

[0038] Specifically, the second mounting base 220 of the embodiment is rotatably fixed to the top of the side pushing sliding seat 510, and is in transmission connection with the side pushing sliding seat 510 through a connecting shaft 511.

[0039] As shown in Figure 1As shown, the rotating assembly 400 comprises a gear ring 410 fixedly sleeved on the outer periphery of the second mounting base 220, a driving gear 420 engaged with the gear ring 410, and a rotating driving member 430 driving the driving gear 420 to rotate, wherein the rotating driving member 430 is a servo motor. The rotating driving member 430 drives the driving gear 420 to rotate, and the second mounting base 220 is driven to rotate on the side pushing sliding base 510 under the engagement of the driving gear 420 and the gear ring 410, so as to drive the adhesive sample plate 110 mounted on the second mounting base 220 to rotate.

[0040] As shown in Figure 1 and Figure 5 The locking assembly 300 of the embodiment comprises a first clamping portion 310, a second clamping portion 320, and a locking driving member 330. The outer periphery of the first mounting base 210 is circumferentially spaced with a plurality of first clamping portions 310. The locking driving member 330 is in transmission connection with the second clamping portion 320. The locking driving member 330 is used to drive the second clamping portion 320 to radially clamp and abut the first clamping portion 310, so as to lock the circumferential rotation and lateral movement of the first mounting base 210.

[0041] As shown in Figure 1 and 5 The first clamping portion 310 of the embodiment is a clamping groove structure, and the second clamping portion 320 is a clamping buckle structure matched with the clamping groove structure. The locking driving member 330 and the second clamping portion 320 of the embodiment are arranged at the rear of the first mounting base 210, and the side pushing driving mechanism 520 is arranged at the front of the second mounting base 220. The side pushing driving mechanism 520 pushes the side pushing sliding base 510 backward to drive the second mounting base 220 to move backward. The locking driving member 330 drives the second clamping portion 320 to move forward to clamp and abut the first clamping portion 310. At this time, the second clamping portion 320 exerts a force on the first mounting base 210 in the forward direction, so that the first mounting base 210 and the second mounting base 220 move relatively in the forward and backward directions.

[0042] When it is necessary to control the relative movement of the two adhesive sample plates 110 in different lateral directions, the first mounting base 210 is only needed to be loosened, and the first mounting base 210 and the second mounting base 220 are driven to rotate by a set angle, so as to change the first clamping portion 310 clamped and abutted by the second clamping portion 320. Thus, the lateral adhesive strength detection can be performed on the four different lateral directions between the two adhesive sample plates 110, so as to simulate the different lateral and tangential forces on the hot melt adhesive.

[0043] Further, the locking driving member 330 of the embodiment is slidably arranged on the adjusting rack 600 along the up-down direction, which can mainly adapt to the detection of hot melt adhesive layers with different thicknesses. When more hot melt adhesive is used, the thickness of the hot melt adhesive layer formed between the two bonding sample plates 110 increases, and the distance between the two bonding sample plates 110 also increases. At this time, the up-down position of the locking driving member 330 is adjusted so that the second clamping part 320 and the first clamping part 310 are opposite in the front-back direction.

[0044] The locking driving member 330 adopts a linear driving structure such as an electric push rod, a hydraulic cylinder, or an air cylinder. The locking driving member 330 is slidably arranged on the rack 600 through a sliding block, and the sliding block is provided with a locking structure for locking the position of the sliding block.

[0045] Further, as shown in Figure 1 and Figure 5 , the top surface of the first mounting seat 210 away from the second mounting seat 220 is provided with a connecting seat 211 which is slidably arranged along the radial direction of the first mounting seat 210. The stretching driving mechanism 230 has a driving telescopic end 231 rotationally connected to the connecting seat 211. The stretching driving mechanism 230 of the embodiment adopts a linear driving structure such as an electric push rod, a hydraulic cylinder, or an air cylinder.

[0046] As shown in Figure 3 and Figure 6 , the stretching assembly 200 of the embodiment further comprises a transverse driving mechanism 240 in transmission connection with the stretching driving mechanism 230. The transverse driving mechanism 240 is used to drive the stretching driving mechanism 230 to move along the radial direction, so as to drive the connecting seat 211 to move to the edge or the center of the first mounting seat 210.

[0047] As shown in Figure 3 , when the longitudinal bonding strength of the hot melt adhesive is detected, the connecting seat 211 can be moved to the center of the first mounting seat 210. At this time, the stretching driving mechanism 230 drives the whole bonding sample plate 110 on the upper side to move up and down. Considering that in actual use, after two objects are bonded by hot melt adhesive, they are often pulled from the edge first. Therefore, in order to simulate the scene of pulling from the edge, the longitudinal stretching needs to be performed from the edge of the two bonding sample plates 110. At this time, after the first mounting seat 210 is rotated to a set position, as shown in Figure 6 , the transverse driving mechanism 240 drives the stretching driving mechanism 230 to move along the radial direction, so as to drive the connecting seat 211 to move to the edge of the first mounting seat 210. Then, the stretching driving mechanism 230 drives the first mounting seat 210 to move upwards from the edge of the first mounting seat 210, so as to stretch the edge of the bonding sample plate 110 on the upper side upwards.

[0048] As shown in Figure 2As shown, the first mounting seat 210 is provided with a sliding groove 212 extending in the radial direction on the top surface, and the connecting seat 211 is in sliding fit with the sliding groove 212. If it is necessary to adjust the position of the connecting seat 211, the first mounting seat 210 is rotated to a state in which the sliding groove 212 extends in the front-rear direction, and the horizontal movement driving mechanism 240 drives the stretching driving mechanism 230 to move forward and backward.

[0049] Specifically, the horizontal movement driving mechanism 240 of the embodiment comprises a moving seat 241 slidingly mounted on the rack 600, and a horizontal movement driving member 242 driving the moving seat 241 to move forward and backward. The horizontal movement driving member 242 adopts a linear driving structure such as an electric push rod, a hydraulic cylinder or an air cylinder.

[0050] For the mounting mode of the bonding sample plate 110, the opposite surfaces of the first mounting seat 210 and the second mounting seat 220 are both distributed with a plurality of mounting grooves 250. The side wall of the mounting groove 250 is provided with a locking through hole 251 in communication with the outside. The mutually opposite surfaces of the two bonding sample plates 110 are distributed with a plurality of plug-in parts 111, which are one-to-one inserted into the mounting grooves 250. The side wall of the plug-in part 111 is provided with a lock hole 112 opposite to the locking through hole 251. The lock hole 112 and the locking through hole 251 are provided with a locking pin part 260, wherein the locking pin part 260 is a bolt.

[0051] When it is necessary to disassemble the bonding sample plate 110, all the locking pin parts 260 are pushed out of the lock hole 112, the first mounting seat 210 is driven to move upward, and the two bonding sample plates 110 can be taken out.

[0052] As shown, Figure 2 The first mounting seat 210 and the second mounting seat 220 of the embodiment are both embedded with heat exchange pipes 270. According to different requirements, the heat exchange pipes 270 can heat and cool the bonding sample plate 110. The heat exchange pipes 270 are connected with a heat exchange system. The heat exchange system is used to deliver a heat exchange medium into the heat exchange pipes 270 to exchange heat, so as to control the test of the hot melt adhesive under different temperature conditions, and also to improve the speed of cooling and solidification of the hot melt adhesive, thereby improving the test efficiency.

[0053] In addition, the application also provides a hot melt adhesive performance detection method suitable for the hot melt adhesive performance detection device, as shown in Figure 7 The hot melt adhesive performance detection method comprises the following steps. Step S100: The hot melt adhesive to be tested is applied to the surface of at least one bonding sample plate 110. Step S200: The two bonding sample plates 110 are pressed against each other according to a preset pressing force, and are cooled and solidified. Step S300: When detecting the longitudinal bonding strength of the hot melt adhesive, control the two bonding sample plates 110 to move away from each other according to the preset pulling force; Step S400: When detecting the circumferential bonding strength of the hot melt adhesive, control one of the bonding sample plates 110 to be locked, and control the other bonding sample plate 110 to rotate circumferentially according to the preset torque; Step S500: When detecting the lateral bonding strength of the hot melt adhesive, control the two bonding sample plates 110 to rotate to different lateral detection positions, and in each lateral detection position, control one of the bonding sample plates 110 to be locked, and control the other bonding sample plate 110 to move laterally according to the preset lateral force.

[0054] In step S200, according to different detection requirements, bonding sample plates 110 of different materials are selected, and a certain amount of hot melt adhesive is applied to the surface of the bonding sample plates 110. The surfaces of the two bonding sample plates 110 can be coated, or the surface of one of the bonding sample plates 110 can be coated.

[0055] In step S200, as shown in Figure 2 , the two bonding sample plates 110 are respectively installed on the first mounting seat 210 and the second mounting seat 220, the plug-in parts 111 are respectively inserted into the mounting grooves 250, and the locking pins 260 are connected to the lock holes 112 and the locking through holes 251 to fix the bonding sample plates 110. The first mounting seat 210 is driven downward by the stretching driving mechanism 230 to press the two bonding sample plates 110 together. At this time, the heat exchange pipe 270 cools the hot melt adhesive to accelerate the solidification speed of the hot melt adhesive.

[0056] In step S300, as shown in Figure 3 and Figure 6 , the first mounting seat 210 is driven upward by the stretching driving mechanism 230 to apply a preset pulling force to the two bonding sample plates 110 to move away from each other, and whether the two bonding sample plates 110 are separated is observed. If not, the longitudinal bonding strength of the hot melt adhesive meets the requirements. In addition, the first mounting seat 210 is rotated to a set position, the stretching driving mechanism 230 is driven to move along the front and rear directions by the transverse driving mechanism 240 to drive the connecting seat 211 to move to the edge of the first mounting seat 210, and then the first mounting seat 210 is driven upward from the edge of the first mounting seat 210 by the stretching driving mechanism 230 to stretch the edge of the bonding sample plate 110 on the upper side upward, and the bonding strength of the hot melt adhesive between the edges of the two bonding sample plates 110 is detected.

[0057] In step S400, as shown in Figure 4As shown, the second clamping portion 320 is driven to move along the front-rear direction by the locking driving member 330, the second clamping portion 320 is controlled to abut with the first clamping portion 310, the circumferential rotation and lateral movement of the first mounting seat 210 are locked, the upper adhesive sample plate 110 is locked, the driving gear 420 is driven to rotate by the rotating driving member 430, the second mounting seat 220 is driven to rotate on the side pushing sliding seat 510 under the meshing connection of the driving gear 420 and the gear ring 410, the adhesive sample plate 110 mounted on the second mounting seat 220 is driven to rotate, and the preset torsion is applied to the lower adhesive sample plate 110. At the same time, whether the two adhesive sample plates 110 are separated is observed, if not, the circumferential adhesive strength of the hot melt adhesive reaches the requirement.

[0058] In step S500, as shown, Figure 1 the second clamping portion 320 is controlled to separate from the first clamping portion 310, the second mounting seat 220 is driven to rotate on the side pushing sliding seat 510, at this time, the first mounting seat 210 rotates together with the second mounting seat 220, that is, the two adhesive sample plates 110 are controlled to rotate together to different lateral detection positions, when staying at each lateral detection position, the second clamping portion 320 is controlled to abut with the first clamping portion 310, the circumferential rotation and lateral movement of the first mounting seat 210 are locked, the upper adhesive sample plate 110 is locked, the side pushing driving mechanism 520 pushes the side pushing sliding seat 510 backward to drive the second mounting seat 220 to move backward, at this time, the force of the second clamping portion 320 on the first mounting seat 210 is forward, the first mounting seat 210 and the second mounting seat 220 are relatively moved in the front-rear direction, the preset lateral force along the front-rear direction is applied to the lower adhesive sample plate 110, at the same time, whether the two adhesive sample plates 110 are separated is observed, if not, the lateral adhesive strength of the hot melt adhesive reaches the requirement.

[0059] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A hot melt adhesive performance detection device, characterized in that, The hot melt adhesive performance detection device comprises: a bonding sample assembly comprising two bonding sample plates stacked along a first direction, the surfaces of the two bonding sample plates being bonded to each other by a hot melt adhesive to be tested; a stretching assembly in driving connection with the two bonding sample plates, the stretching assembly being configured to apply a pressing force to the two bonding sample plates to press the two bonding sample plates to each other along the first direction and a pulling force to the two bonding sample plates to move the two bonding sample plates away from each other along the first direction; a locking assembly configured to lock and release one of the two bonding sample plates; a rotating assembly in driving connection with the other bonding sample plate, the rotating assembly being configured to apply a torsion to the other bonding sample plate to rotate the other bonding sample plate along a circumferential direction when the one bonding sample plate is locked by the locking assembly, and to rotate the two bonding sample plates together when the one bonding sample plate is released by the locking assembly; a side pushing assembly in driving connection with the other bonding sample plate, the side pushing assembly being configured to apply a side force to the other bonding sample plate to move the other bonding sample plate along a second direction when the one bonding sample plate is locked by the locking assembly, wherein the second direction is perpendicular to the first direction.

2. The hot melt adhesive performance detection device according to claim 1, wherein: the stretching assembly comprises a first mounting seat, a second mounting seat and a stretching driving mechanism, the first mounting seat and the second mounting seat are oppositely arranged along the first direction, and the two bonding sample plates are detachably mounted on the opposite surfaces of the first mounting seat and the second mounting seat, respectively; the stretching driving mechanism is in driving connection with the first mounting seat, and the stretching driving mechanism is configured to move the first mounting seat along the first direction; the locking assembly is configured to lock the position of the first mounting seat along the second direction and the position of the first mounting seat around a central axis extending along the first direction; the rotating assembly is in driving connection with the second mounting seat, and the rotating assembly is configured to rotate the second mounting seat around the central axis extending along the first direction; the side pushing assembly is in driving connection with the second mounting seat, and the side pushing assembly is configured to move the second mounting seat along the second direction.

3. The hot melt adhesive performance detection device according to claim 2, wherein: the side pushing assembly comprises a side pushing slide and a side pushing driving mechanism configured to move the side pushing slide along the second direction; the second mounting seat and the rotating assembly are mounted on the side pushing slide.

4. The hot melt adhesive performance detection device according to claim 3, wherein: the second mounting seat is rotatably fixed on the top of the side pushing slide, and the rotating assembly comprises a gear ring fixed on the outer periphery of the second mounting seat, a driving gear in meshing connection with the gear ring, and a rotating driving member configured to rotate the driving gear.

5. The hot melt adhesive performance detection device according to claim 3, wherein: The locking assembly comprises first clamping portions, second clamping portions, and a locking driving member, the first mounting seat is provided with a plurality of first clamping portions distributed along the circumference, the locking driving member is in transmission connection with the second clamping portions, and the locking driving member is used to drive the second clamping portions to abut against the first clamping portions along the radial direction, so as to lock the circumferential rotation and lateral movement of the first mounting seat.

6. The hot melt adhesive performance detection device according to claim 5, wherein: The locking driving member is adjusted and arranged by sliding along the first direction.

7. The hot melt adhesive performance detection device according to claim 3, wherein: The first mounting seat is provided with a connecting seat on the top surface away from the second mounting seat, and the connecting seat is arranged by sliding along the radial direction; The stretching driving mechanism has a driving telescopic end in transmission connection with the connecting seat, the stretching assembly further comprises a transverse movement driving mechanism in transmission connection with the stretching driving mechanism, and the transverse movement driving mechanism is used to drive the stretching driving mechanism to move along the radial direction, so as to drive the connecting seat to move to the edge and the center of the first mounting seat.

8. The hot melt adhesive performance detection device according to claim 3, wherein: The opposite surfaces of the first mounting seat and the second mounting seat are both provided with a plurality of mounting grooves, and the side wall of the mounting groove is provided with a locking through hole in communication with the outside; The opposite surfaces of the bonding sample plates are both provided with a plurality of plug-in parts, the plug-in parts are plug-in mounted in the mounting grooves one by one, the side wall of the plug-in part is provided with a lock hole opposite to the locking through hole, and the lock hole and the locking through hole are provided with a locking pin.

9. The hot melt adhesive performance detection device according to claim 3, wherein: The inside of the first mounting seat and the second mounting seat is embedded with a heat exchange pipe.

10. A method for detecting the performance of a hot melt adhesive, characterized by: The hot melt adhesive performance detection method is suitable for the hot melt adhesive performance detection device according to any one of claims 1 to 9, and the method comprises the following steps: The hot melt adhesive to be detected is applied on the surface of at least one bonding sample plate; The two bonding sample plates are pressed together according to a preset pressing force, and are cooled and solidified; When the longitudinal bonding strength of the hot melt adhesive is detected, the two bonding sample plates are controlled to move away from each other according to a preset pulling force; When the circumferential bonding strength of the hot melt adhesive is detected, one of the bonding sample plates is locked, and the other bonding sample plate is controlled to rotate along the circumference according to a preset torsion; When the lateral bonding strength of the hot melt adhesive is detected, the two bonding sample plates are controlled to rotate to different lateral detection positions, in each lateral detection position, one of the bonding sample plates is locked, and the other bonding sample plate is controlled to move laterally according to a preset lateral force.

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