CN115824828A

CN115824828A - Heat resistance detection device for polyurethane adhesive

Info

Publication number: CN115824828A
Application number: CN202211141771.3A
Authority: CN
Inventors: 李春龙
Original assignee: Shanxi Pingxingjiu Hardware Co ltd
Current assignee: Shanxi Pingxingjiu Hardware Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-03-21

Abstract

The invention discloses a heat resistance detection device for polyurethane glue, which comprises a top plate and a transverse plate, wherein four corners of the lower end of the top plate are fixedly connected with stand columns, the outer walls of the stand columns are fixedly connected with the transverse plate, an adjusting assembly is arranged below the outer walls of the stand columns, a rotating assembly is arranged on the inner side above the outer walls of the stand columns, and an adhesion assembly is arranged in the center of the transverse plate. This heat resistance detection device that polyurethane was glued, through the second motor, the second gear, second bevel gear group, the ring, the cooperation between scale and the pointer, control second motor, make the second motor drive the ring through second bevel gear group and second gear and rotate the rotation of driving about the pneumatic cylinder, and the concrete inclination of pneumatic cylinder is observed out in the cooperation of accessible scale and pointer, rethread control pneumatic cylinder can apply the pulling force that has certain angle to glue line department, can't the problem of the specific inclination of visual observation when having avoided adjustment pulling direction.

Description

Heat resistance detection device for polyurethane adhesive

Technical Field

The invention relates to the technical field of polyurethane glue, in particular to a heat resistance detection device of polyurethane glue.

Background

The polyurethane-based hot melt adhesive is a hot melt adhesive with the best performance, is a guarantee for sealing edges of high-quality plates, is expensive and needs a special using method, the temperature of the using environment of the furniture edge sealing adhesive cannot be higher than 120 ℃, and the edge sealing adhesive generally has the phenomenon of higher price. At present, the most common isocyanate with relatively low price is redesigned to replace the polyurethane-based hot melt adhesive with high price on the market, and the heat resistance of the polyurethane hot melt adhesive is improved by modifying and adding special heat-resistant materials, so that a detection device is required to detect the heat resistance, for example, a polyurethane adhesive heat resistance detection device with application number CN202120874379.4, which comprises: the detection platform is characterized in that the lifting base is arranged on a groove of the detection platform, the multi-angle adjusting mechanism is arranged on the lifting base, and the pressure mechanism is arranged below the cross beam.

Although the comparison file can realize that the test method is flexible and easy to master, the manufacturing process is simple, the cost is low, and the operation is convenient, the problem that the specific inclination angle cannot be visually observed when the pulling direction is adjusted still exists when the comparison file is used, the stretching resistance of the adhesive layer at different force application positions cannot be detected as required, the secondary connection can be carried out only by manually aligning the connection structure when the force application position is adjusted, and the connection and the shaking are easy to occur at the base in the automatic connection and resetting process at the clamping block.

Disclosure of Invention

The invention aims to provide a device for detecting heat resistance of polyurethane adhesive, which solves the problems that the specific inclination angle cannot be visually observed when the pulling direction is adjusted, the stretching resistance of an adhesive layer at different force application positions cannot be detected according to requirements, secondary connection can be carried out only by manually aligning a connection structure when the force application position is adjusted, and connection and shaking are easy to occur at a base in the automatic connection and resetting process of a fixture block in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heat resistance detection device that polyurethane was glued, includes roof and diaphragm, the equal rigid coupling in lower extreme four corners of roof has the stand, the outer wall and the diaphragm of stand are fixed to be linked to each other, the outer wall below of stand is provided with adjusting part, the outer wall top inboard of stand is provided with rotating assembly, the center of diaphragm is provided with the adhesion subassembly.

Preferably, the rotating assembly comprises scales, a second motor, a ring, a second bevel gear set, a second gear, a roller, a hydraulic cylinder and a pointer;

the utility model discloses a hydraulic cylinder, including first motor, second gear set, ring, the upper end left side of roof, the output shaft of second motor rigid coupling, the output shaft of second motor links to each other with second gear set's input shaft is fixed, second gear set's output shaft links to each other with second gear is fixed, the outer wall of second gear meshes with the outer wall of ring is inside mutually, the gyro wheel has all been laminated in the outer wall four corners of ring, the inside of gyro wheel rotates with roof and diaphragm through the pivot and links to each other, the front side processing of ring has the scale, the front side right-hand member of scale is provided with the pointer, the pointer links to each other with the stand on right side is fixed, the outer wall upper end rigid coupling of ring has the pneumatic cylinder.

Preferably, the rotating assembly further comprises an electric push rod, an end plate and a vertical rod;

the lower extreme of electric putter respectively the rigid coupling in the upper end center both sides of roof, electric putter's output shaft rigid coupling has the end plate, the below center of end plate is provided with the montant, and the below inner wall breach of end plate is corresponding with the position of montant.

Preferably, the adhesion assembly comprises a support, a heating plate, an air cylinder, a sliding rod, a clamping groove, a base, an inserting rod and a clamping block;

the cylinder is located the below both sides of diaphragm, the output shaft end of cylinder links to each other with the hot plate is fixed, the upper end laminating of hot plate has the support, the inside slip in four corners of support links to each other has the slide bar, the below of slide bar all links to each other with the hot plate is fixed, the inside processing in top of support has a plurality of draw-in grooves, the center the inside grafting of draw-in groove has the inserted bar, the outer wall below of inserted bar rotates and links to each other has a plurality of fixture blocks, the spiral spring is installed to the rotation portion of fixture block, the upper end rigid coupling of inserted bar has the base, the inside of base rotates through the output shaft of round pin axle with the pneumatic cylinder and links to each other.

Preferably, the upper end of the base is fixedly connected with the vertical rod.

Preferably, the adjusting assembly comprises a cross beam, a first motor, a sleeve, a first bevel gear set, a first gear and a rack;

the output shaft of the first motor is fixedly connected with the input shaft of the first bevel gear set, the tail end of the output shaft of the first bevel gear set is fixedly connected with the first gear, the upper portion of the outer wall of the first gear is meshed with the rack, the rack is processed below the outer wall of the sleeve, the left side and the right side of the outer wall of the sleeve are fixedly connected with the outer wall of the cylinder, the inside of the sleeve is connected with a cross beam in a sliding mode, and the tail ends of the two sides of the cross beam are fixedly connected with the stand column.

Preferably, a bump for detecting connection is processed at the lower end of the bracket.

Preferably, the lower end protruding part of the bracket is fixedly connected with the heating plate through a glue layer in a bonding manner.

Preferably, the overall dimensions of the top plate and the cross plate are the same.

Compared with the prior art, the invention has the beneficial effects that: this heat resistance detection device of polyurethane glue:

the second motor is controlled through the cooperation between the second motor, the second gear, the second bevel gear set, the ring, the scales and the pointer, the second motor drives the ring to rotate through the second bevel gear set and the second gear to drive the hydraulic cylinder to rotate, the specific inclination angle of the hydraulic cylinder can be observed through the cooperation between the scales and the pointer, and the pulling force with a certain angle can be applied to the glue layer through controlling the hydraulic cylinder, so that the problem that the specific inclination angle of the glue layer cannot be observed visually when the pulling direction is adjusted is solved;

through the matching among the hydraulic cylinder, the bracket, the clamping grooves, the inserted rod and the clamping blocks, because the output shaft of the hydraulic cylinder is pulled through the matching of the clamping blocks with the bracket, and because the inserted rod is inserted into the clamping grooves and the clamping grooves are processed at a plurality of positions, the matching of the inserted rod and the clamping grooves at different positions can be continuously changed to realize the detection of different positions of the force applied on the surface of the bracket, thereby avoiding the problem that the stretching resistance of the adhesive layer at different force application positions can not be detected according to the requirement;

through the matching among the clamping block, the air cylinder, the first motor, the first bevel gear set and the first gear, after the clamping at the clamping block is removed, the heating plate and the support can be controlled to move downwards through the air cylinder, and then the output shaft of the first motor can drive the sleeve and the air cylinder to move transversely through the first bevel gear set and the first gear under the control of the first motor, so that the clamping groove and the inserting rod can be matched at different positions, and the problem that the secondary connection can be carried out only by manually aligning the connecting structure when the force application position is adjusted is avoided;

through the cooperation between electric putter, end plate, montant, fixture block and the support, electric putter drives the end plate and moves down, guarantees the vertical state of montant department, and then when can guaranteeing to form the joint between fixture block and the support, the base is in the state shown in the picture all the time, has avoided appearing connecting the problem of rocking easily in the automatic connection reset process base department of fixture block department.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 1;

FIG. 4 is a schematic view of the structure at B in FIG. 1;

FIG. 5 is a schematic view of the structure at C in FIG. 1;

fig. 6 is a schematic structural diagram at D in fig. 1.

In the figure: 1. a top plate; 2. a transverse plate; 3. an adjustment assembly; 3a1, a cross beam; 3a2, a first motor; 3a3, a sleeve; 3a4, a first bevel gear set; 3a5, a first gear; 3a6, a rack; 4. a rotating assembly; 4a1, graduation; 4a2, a second motor; 4a3, a circular ring; 4a4, a second bevel gear set; 4a5, a second gear; 4a6, a roller; 4a7, a hydraulic cylinder; 4a8, a pointer; 4b1, an electric push rod; 4b2, end plates; 4b3, a vertical rod; 5. an adhesion assembly; 5a1, a bracket; 5a2, a heating plate; 5a3, a cylinder; 5a4, a sliding rod; 5a5, a clamping groove; 5a6, a base; 5a7, an inserted link; 5a8, a fixture block; 6. a column; 7. and (6) an adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a heat resistance detection device that polyurethane was glued, includes roof 1 and diaphragm 2, and the equal rigid coupling in lower extreme four corners of roof 1 has stand 6, and the outer wall of stand 6 links to each other with diaphragm 2 is fixed, and the outer wall below of stand 6 is provided with adjusting part 3, and the outer wall top inboard of stand 6 is provided with rotating assembly 4, and the center of diaphragm 2 is provided with adhesion subassembly 5.

Referring to fig. 1 to 6, the present invention provides a rotating assembly 4, which includes a scale 4a1, a second motor 4a2, a ring 4a3, a second bevel gear set 4a4, a second gear 4a5, a roller 4a6, a hydraulic cylinder 4a7 and a pointer 4a8, wherein the second motor 4a2 is fixedly connected to the left side of the upper end of a top plate 1, an output shaft of the second motor 4a2 is fixedly connected to an input shaft of the second bevel gear set 4a4, an output shaft of the second bevel gear set 4a4 is fixedly connected to the second gear 4a5, an outer wall of the second gear 4a5 is engaged with an inner portion of an outer wall of the ring 4a3, the roller 4a6 is attached to four corners of the outer wall of the ring 4a3, an inner portion of the roller 4a6 is rotatably connected to the top plate 1 and the cross plate 2 through a rotating shaft, the front side of the ring 4a3 is provided with the scale 4a1, the scale 4a1 is 360-grid, the right end of the scale 4a1 is provided with the pointer 4a8, the pointer 4a8 is fixedly connected to a6 of a right side, an outer wall of the ring 4a3, and the hydraulic cylinder 4a7 is fixedly connected to an outer end of the hydraulic cylinder 4a3, and a can be used for transmitting pressure sensor according to specific conditions of the hydraulic cylinder;

through the cooperation between the second motor 4a2, the second gear 4a5, the second bevel gear set 4a4, the ring 4a3, the scale 4a1 and the pointer 4a8, the second motor 4a2 is controlled, the second motor 4a2 drives the ring 4a3 to rotate through the second bevel gear set 4a4 and the second gear 4a5, the hydraulic cylinder 4a7 is driven to rotate, the specific inclination angle of the liquid output cylinder 4a7 can be observed through the cooperation of the scale 4a1 and the pointer 4a8, the pulling force with a certain angle can be applied to the glue layer 7 through controlling the hydraulic cylinder 4a7, and the problem that the specific inclination angle cannot be observed visually when the pulling direction is adjusted is avoided.

Referring to fig. 1-6, the invention provides an adhesion assembly 5, which includes a bracket 5a1, a heating plate 5a2, a cylinder 5a3, a slide bar 5a4, a clamping groove 5a5, a base 5a6, an insert rod 5a7 and a clamping block 5a8, wherein the cylinder 5a3 is located on two sides below a transverse plate 2, the tail end of an output shaft of the cylinder 5a3 is fixedly connected with the heating plate 5a2, the bracket 5a1 is attached to the upper end of the heating plate 5a2, the slide bar 5a4 is connected to the inside of four corners of the bracket 5a1 in a sliding manner, the lower part of the slide bar 5a4 is fixedly connected with the heating plate 5a2, the model of the heating plate 5a2 can be determined according to the specific use condition, a plurality of clamping grooves 5a5 are formed inside the bracket 5a1, the insert rod 5a7 is inserted inside the central clamping groove 5a5, a8 is connected to the lower part of the outer wall of the insert rod 5a7 in a rotating manner, a8 is connected with a spring installed on the rotating part of the clamping block 5a8, the rotating part of the clamping block 5a8 is used for ensuring that the clamping block 5a8 shrinks inwards, the inserting rod 5a is connected with the output shaft 5a6, the base 6, and the output shaft of the base 5a6, and the base 6 is fixedly connected with the base 6;

through the cooperation between pneumatic cylinder 4a7, support 5a1, draw-in groove 5a5, inserted bar 5a7 and the fixture block 5a8, make and stimulate through the cooperation of fixture block 5a8 between the output shaft of pneumatic cylinder 4a7 and the support 5a1, and because inserted bar 5a7 is the inside of inserting draw-in groove 5a5, and all processed draw-in groove 5a5 in a plurality of positions, make the cooperation of the draw-in groove 5a5 of continuous change inserted bar 5a7 and different positions realize exerting the difference in support 5a1 surface force position and then carry out the detection of different positions, avoided can't detect the problem of the resistant tensile ability of glue film under different application of force positions as required.

Referring to fig. 1-6, the present invention provides an adjusting assembly 3, which includes a cross beam 3a1, a first motor 3a2, a sleeve 3a3, a first bevel gear set 3a4, a first gear 3a5 and a rack 3a6, wherein an output shaft of the first motor 3a2 is fixedly connected to an input shaft of the first bevel gear set 3a4, types of the first motor 3a2 and the second motor 4a2 may be determined according to specific use conditions, a terminal end of an output shaft of the first bevel gear set 3a4 is fixedly connected to the first gear 3a5, an upper side of an outer wall of the first gear 3a5 is engaged with the rack 3a6, the second motor 4a2 and the first motor 3a5 are servo motors, i.e., having self-locking capability, the rack 3a6 is processed under an outer wall of the sleeve 3a3, a type of the cylinder 5a3 may be determined according to specific use conditions, left and right sides of an outer wall of the sleeve 3a3 are fixedly connected to an outer wall of the cylinder 5a3, an inner portion of the sleeve 3a is connected to a cross beam 1 a support, a lower end of the cross beam 1 is connected to a support, a support 1 a 5a support, and a support is connected to a heating plate 5a support for detecting a heating plate, and a heating plate 5 is connected to a heating plate 5, and a heating plate 5 is connected to a heating plate for detecting a post plate, and a post 1;

through the cooperation between fixture block 5a8, cylinder 5a3, first motor 3a2, first bevel gear group 3a4 and first gear 3a5, after the joint of fixture block 5a8 department is relieved, accessible cylinder 5a3 control hot plate 5a2 and support 5a1 move down, rethread first motor 3a 2's control, make the output shaft accessible of first motor 3a2 first bevel gear group 3a4 and first gear 3a5 drive sleeve 3a3 and cylinder 5a3 carry out the lateral shifting adjustment, and then can make the different position cooperations between draw-in groove 5a5 and the inserted bar 5a7, the problem that need manual alignment connection structure can carry out the secondary connection when the adjustment application of force position has been avoided.

Principle of operation

When the heat resistance detection device of polyurethane adhesive is required to be used, firstly, a user can firstly assemble the device according to the illustration in the figure, then the polyurethane adhesive is smeared at the notch of the upper surface of the heating plate 5a2 to form an adhesive layer 7, then the bracket 5a1 which is required to be subjected to adhesion test is installed from the upper part of the outer wall of the sliding rod 5a4, the bracket 5a1 and the heating plate 5a2 are fixed in an adhesion way through the adhesive layer 7, when measurement is required, the user can heat the adhesive layer 7 through the heating plate 5a2 and control the hydraulic cylinder 4a7 to enable the hydraulic cylinder 4a7 to continuously apply upward pulling force so as to measure the adhesion capacity at a specific temperature, and in the process, the user can control the second motor 4a2 to enable the second motor 4a2 to drive the circular ring 4a3 to rotate through the second bevel gear set 4a4 and the second gear 4a5 to drive the hydraulic cylinder 4a7 to rotate, and the concrete inclination angle of the hydraulic cylinder 4a7 can be observed through the matching of the scale 4a1 and the pointer 4a8, and then the hydraulic cylinder 4a7 is controlled to apply a pulling force with a certain angle to the glue layer 7, so that the problem that the specific inclination angle cannot be observed visually when the pulling direction is adjusted is avoided, and meanwhile, when the adhesive tape is used, because the output shaft of the hydraulic cylinder 4a7 is pulled through the matching of the fixture block 5a8 with the bracket 5a1, and because the inserted bar 5a7 is inserted into the clamping groove 5a5, and the clamping grooves 5a5 are processed at a plurality of positions, the matching of the inserted bar 5a7 and the clamping grooves 5a5 at different positions can be changed continuously to realize the difference of the surface force positions applied to the bracket 5a1 and further detect different positions, so that the problem that the stretching resistance of the glue layer at different force application positions can not be detected according to requirements is avoided, and after the clamping at the fixture block 5a8 is released, the heating plate 5a2 and the bracket 5a1 can be controlled to move downwards through the air cylinder 5a3, the control of rethread first motor 3a2 makes the output shaft accessible of first motor 3a2 bevel gear group 3a4 and first gear 3a5 drive sleeve 3a3 and cylinder 5a3 and carry out the lateral shifting adjustment, and then can make the different position cooperations between draw-in groove 5a5 and the inserted bar 5a7, has avoided needing the manual problem that can carry out the secondary connection of aiming at connection structure when adjusting the application of force position.

Example 2

Referring to fig. 1-6, the present invention provides a technical solution: the rotating assembly 4 further comprises an electric push rod 4b1, an end plate 4b2 and a vertical rod 4b3, the type of the electric push rod 4b1 can be determined according to the use condition, the lower end of the electric push rod 4b1 is fixedly connected to two sides of the center of the upper end of the top plate 1 respectively, an output shaft of the electric push rod 4b1 is fixedly connected with the end plate 4b2, the vertical rod 4b3 is arranged at the center of the lower part of the end plate 4b2, and a notch of the inner wall of the lower part of the end plate 4b2 corresponds to the position of the vertical rod 4b 3;

through electric putter 4b1, end plate 4b2, montant 4b3, cooperation between fixture block 5a8 and the support 5a1, electric putter 4b1 drives end plate 4b2 downstream, inner wall breach and montant 4b 3's contact through end plate 4b2, guarantee the vertical state of montant 4b3 department, and then can guarantee when forming the joint between fixture block 5a8 and the support 5a1, base 5a6 is in the state shown in the figure all the time, the problem of rocking appears connecting easily in the automatic connection reset process base 5a6 department of fixture block 5a8 department has been avoided.

Principle of operation

When the heat resistance detection device that needs this polyurethane to glue uses, all the other structures are unanimous with above-mentioned scheme, only lie in the in-process of cylinder 5a3 control support 5a1 and hot plate 5a2 rebound, the user can drive end plate 4b2 downstream through electric putter 4b1 earlier, guarantee the vertical state of montant 4b3 department, and then can guarantee when forming the joint between fixture block 5a8 and the support 5a1, base 5a6 is in the state shown in the figure all the time, the problem of connecting and rocking has appeared easily in base 5a6 department in the automatic connection reset process of fixture block 5a8 department has been avoided.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a heat resistance detection device that polyurethane was glued, includes roof (1) and diaphragm (2), its characterized in that: the equal rigid coupling in lower extreme four corners of roof (1) has stand (6), the outer wall and the diaphragm (2) of stand (6) are fixed to be linked to each other, the outer wall below of stand (6) is provided with adjusting part (3), the outer wall top inboard of stand (6) is provided with rotating assembly (4), the center of diaphragm (2) is provided with adhesion subassembly (5).

2. The device for detecting heat resistance of polyurethane adhesive according to claim 1, wherein: the rotating assembly (4) comprises a scale (4 a 1), a second motor (4 a 2), a circular ring (4 a 3), a second bevel gear set (4 a 4), a second gear (4 a 5), a roller (4 a 6), a hydraulic cylinder (4 a 7) and a pointer (4 a 8);

the utility model discloses a hydraulic pressure cooker, including roof (1), second motor (4 a 2), second bevel gear group (4 a 4), second gear (4 a 2), second gear (4 a 4), second gear group (4 a 4) and second gear (4 a 5), the outer wall of second gear (4 a 5) meshes with the outer wall inner part of ring (4 a 3), gyro wheel (4 a 6) have all been laminated in the outer wall four corners of ring (4 a 3), the inside of gyro wheel (4 a 6) rotates with roof (1) and diaphragm (2) through the pivot and links to each other, the front side processing of ring (4 a 3) has scale (4 a 1), the front side of scale (4 a 1) is provided with pointer (4 a 8), pointer (4 a 8) link to each other with the fixed right-hand member of stand (6) on right side, the outer wall upper end rigid coupling of ring (4 a 3) has pneumatic cylinder (4 a 7).

3. The device for detecting heat resistance of polyurethane adhesive according to claim 1, wherein: the rotating assembly (4) further comprises an electric push rod (4 b 1), an end plate (4 b 2) and a vertical rod (4 b 3);

the lower extreme of electric putter (4 b 1) rigid coupling respectively in the upper end center both sides of roof (1), the output shaft rigid coupling of electric putter (4 b 1) has end plate (4 b 2), the below center of end plate (4 b 2) is provided with montant (4 b 3), and the below inner wall breach of end plate (4 b 2) is corresponding with the position of montant (4 b 3).

4. The device for detecting the heat resistance of polyurethane adhesive according to claim 1, wherein: the adhesion assembly (5) comprises a support (5 a 1), a heating plate (5 a 2), an air cylinder (5 a 3), a sliding rod (5 a 4), a clamping groove (5 a 5), a base (5 a 6), an inserted rod (5 a 7) and a clamping block (5 a 8);

the heating device is characterized in that the air cylinders (5 a 3) are located on two sides of the lower portion of the transverse plate (2), the tail end of an output shaft of the air cylinders (5 a 3) is fixedly connected with the heating plate (5 a 2), a support (5 a 1) is attached to the upper end of the heating plate (5 a 2), slide bars (5 a 4) are connected with the four corners of the support (5 a 1) in a sliding mode, the lower portion of each slide bar (5 a 4) is fixedly connected with the heating plate (5 a 2), a plurality of clamping grooves (5 a 5) are formed in the upper portion of the support (5 a 1), an inserting rod (5 a 7) is inserted into the clamping groove (5 a 5) in the center in an inserting mode, a plurality of clamping blocks (5 a 8) are connected with the lower portion of the outer wall of the inserting rod (5 a 7) in a rotating mode, a volute spiral spring is installed on the rotating portion of each clamping block (5 a 8), a base (5 a 6) is fixedly connected with the upper end of the inserting rod (5 a 7), and the interior of the base (5 a 6) is connected with the output shaft of the hydraulic cylinder (4 a 7) through a pin shaft in a 6).

5. The device for detecting the heat resistance of polyurethane adhesive according to claim 4, wherein: the upper end of the base (5 a 6) is fixedly connected with the vertical rod (4 b 3).

6. The device for detecting heat resistance of polyurethane adhesive according to claim 1, wherein: the adjusting assembly (3) comprises a cross beam (3 a 1), a first motor (3 a 2), a sleeve (3 a 3), a first bevel gear set (3 a 4), a first gear (3 a 5) and a rack (3 a 6);

the output shaft of first motor (3 a 2) and the input shaft of first bevel gear group (3 a 4) are fixed continuous, the output shaft of first bevel gear group (3 a 4) is terminal to be connected with first gear (3 a 5) is fixed, the outer wall top of first gear (3 a 5) meshes with rack (3 a 6) mutually, rack (3 a 6) processing is in the outer wall below of sleeve (3 a 3), the outer wall left and right sides of sleeve (3 a 3) all links to each other with the outer wall of cylinder (5 a 3) is fixed, the inside slip of sleeve (3 a 3) links to each other crossbeam (3 a 1), the both sides end and stand (6) of crossbeam (3 a 1) are fixed continuous.

7. The device for detecting the heat resistance of polyurethane adhesive according to claim 4, wherein: the lower end of the bracket (5 a 1) is provided with a lug used for detecting connection.

8. The device for detecting the heat resistance of polyurethane adhesive according to claim 4, wherein: the lower end protruding part of the support (5 a 1) is fixedly connected with the heating plate (5 a 2) through a glue layer (7) in a bonding mode.

9. The device for detecting heat resistance of polyurethane adhesive according to claim 1, wherein: the overall size of the top plate (1) is consistent with that of the transverse plate (2).