Sealant coating device for sealant performance detection

Abstract

The utility model discloses a sealant coating device for sealant performance detection, which comprises a kneading machine, the kneading machine comprises a machine body and a spray head, the sealant coating device also comprises a fixing device, the fixing device is positioned on one side of the kneading machine, the fixing device comprises a bracket, a horizontal adjusting assembly is arranged on the bracket, the horizontal adjusting assembly comprises a horizontal adjusting frame, and the horizontal adjusting frame is arranged on the machine body. One end of the horizontal adjusting frame is fixedly connected with a first driving motor, an output shaft of the first driving motor is in transmission connection with a horizontally-arranged first lead screw, the first lead screw is in threaded connection with a horizontal adjusting block, the horizontal adjusting block is fixedly connected with a fixing plate, one side of the fixing plate is fixedly connected with a containing plate, and one side of the containing plate is fixedly connected with a baffle. The baffle is lower than the fixing plate. And through the arrangement of the horizontal adjusting assembly, uniform-speed movement of the glass can be conveniently realized through the driving motor I, so that the sealant can be uniformly coated on the surface of the glass, the sealant coating uniformity is further improved to a certain extent, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealant production technical field, especially a kind of sealant coating device for sealant performance detection. BACKGROUND

[0002] The sealant for hollow glass is a material specially designed for glass bonding, sealing and filling, which needs to have high-strength bonding performance, high-elastic modulus, and excellent ultraviolet resistance and temperature resistance. Among them, silicone ketone dominates the building and automotive fields due to its excellent comprehensive performance. During the production and development of sealant, the bonding performance and elastic performance of the sealant need to be detected to determine whether the performance of the sealant meets the needs of hollow glass production.

[0003] To meet the needs of sealant performance testing, the tester needs to apply sealant to the surface of the glass. Currently, the tester usually adds sealant to the kneader and applies sealant to the surface of the glass through the kneader nozzle. During the application process, the tester needs to move the glass to make the sealant coat along the edge of the glass to meet the testing needs. However, due to the uneven movement speed during manual movement of the glass, the sealant on the glass is not uniform, which affects the results of sealant performance testing to some extent. In addition, for large-sized heavy glass, a lot of physical effort is needed during manual movement, increasing the labor intensity of the tester. SUMMARY

[0004] The utility model provides a kind of sealant coating device for sealant performance detection to solve the above problems.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a sealant coating device for sealant performance detection, the device includes a kneader for extruding sealant, the kneader includes a body and a nozzle, the device further includes a fixing device for fixing glass, the fixing device is located on one side close to the nozzle of the kneader, the fixing device includes a bracket, a horizontal adjustment assembly is installed on the bracket, the horizontal adjustment assembly includes a horizontal adjustment frame, one end of the horizontal adjustment frame is fixedly connected with a driving motor one, the output shaft of the driving motor one is drivingly connected with a horizontally arranged lead screw one, both ends of the lead screw one are rotatably connected with the horizontal adjustment frame, the lead screw one is arranged along the length direction of the horizontal adjustment frame, a horizontal adjustment block is threadedly connected on the lead screw one, the horizontal adjustment block is slidingly connected on the horizontal adjustment frame at the bottom, a fixed plate is fixedly connected vertically on the horizontal adjustment block, a placing plate is fixedly connected horizontally on the side of the fixed plate away from the horizontal adjustment block, a baffle is fixedly connected vertically on the side of the placing plate away from the fixed plate, and the height of the baffle is lower than that of the fixed plate.

[0006] Preferably, the horizontal adjusting frame on one side of the screw rod is fixedly connected with a sliding rail parallel to the screw rod, and the bottom of the horizontal adjusting block is provided with a sliding groove matched with the sliding rail, and the horizontal adjusting block is slidably connected to the sliding rail through the sliding groove.

[0007] Preferably, the device further comprises a distance adjusting assembly, the distance adjusting assembly comprises a distance adjusting frame, the distance adjusting frame is fixedly connected to the top of the support, a driving motor two is fixedly connected to the outer side wall of one end of the distance adjusting frame, the output shaft of the driving motor two is drivingly connected with a horizontally arranged screw rod two, the central axis of the screw rod two along the length direction is perpendicular to the central axis of the screw rod one along the length direction, the two ends of the screw rod two are rotatably connected with the distance adjusting frame, a distance adjusting block is threadedly connected to the screw rod two, the bottom of the distance adjusting block is slidably connected to the distance adjusting frame, and the top of the distance adjusting frame is connected with the horizontal adjusting frame.

[0008] Preferably, the distance adjusting frame is provided with a guide plate parallel to the screw rod two on each side, the guide plate is fixedly connected to the top of the support, the distance adjusting block is provided in an m shape, and the two sides of the distance adjusting block are provided with guide grooves matched with the guide plates, and the guide grooves are slidably connected to the guide plates.

[0009] Preferably, the distance adjusting frame and the horizontal adjusting frame are connected through a height adjusting assembly, the height adjusting assembly comprises a horizontally arranged connecting plate, the bottom of the connecting plate is fixedly connected to the top of the distance adjusting block, the top of the connecting plate is fixedly connected with a lifting mechanism, and the top of the lifting mechanism is connected with the horizontal adjusting frame.

[0010] Preferably, the nozzle is detachably fixedly connected with the kneader through bolts, the nozzle is vertically arranged, and a nozzle is arranged on the outer side of the nozzle; the fixing device is located on the side of the kneader close to the nozzle, and the side of the fixing plate close to the placement plate is close to the nozzle.

[0011] Preferably, the nozzle is open at one end close to the connection with the kneader, and the other end of the nozzle is closed; the inside of the nozzle is a hollow structure; the nozzle is a long strip-shaped through hole and is in communication with the internal cavity of the nozzle; an adjusting tongue is detachably fixedly connected in the internal cavity of the nozzle; one side of the adjusting tongue abuts against and is in close contact with the inner side wall of the nozzle, and the nozzle is located on this side; the other side of the adjusting tongue is spaced apart from the inner wall of the nozzle, and the spacing is a flow cavity; the end of the adjusting tongue is spaced apart from the closed end of the nozzle; one end of the flow cavity is in communication with the opening of the nozzle; and the other end of the flow cavity is in communication with the nozzle.

[0012] Preferably, the adjusting tongue has different specifications, the lengths of the adjusting tongues of different specifications are different, and the ends of the adjusting tongues of different specifications are located at different positions of the nozzle to change the size of the length of the nozzle.

[0013] Preferably, the spray head is provided with a mounting hole, the adjusting tongue is provided with a threaded hole, and the bolt is screwed through the mounting hole and the threaded hole, so that the spray head is detachably connected with the adjusting tongue through the bolt.

[0014] Preferably, the end of the adjusting tongue near the nozzle is fixedly connected with a positioning strip, and the spray head is provided with a positioning groove matched with the positioning strip, and the end of the positioning strip is located in the positioning groove.

[0015] The utility model has the beneficial effects that: (1) the horizontal adjusting assembly is arranged to drive the lead screw one to rotate through the driving motor one, so that the horizontal adjusting block moves along the horizontal direction of the lead screw one, and the horizontal position of the glass on the fixed plate is adjusted, so that the sealant is evenly coated on the glass surface, and the uniformity of the sealant coating is improved to a certain extent, and the detection accuracy is improved; (2) the glass is placed on the placing plate, and one side of the glass abuts against the fixed plate, and the other side of the glass abuts against the baffle, the width of the placing plate is slightly wider than the thickness of the glass, so that the glass is at a certain inclination angle, the angle during the glass coating in actual production is simulated, and the authenticity and accuracy of the sealant test are improved; (3) the distance adjusting assembly is arranged to adjust the distance between the glass and the spray head, so that the sealant coating is ensured, and the height adjusting assembly is arranged to adjust the height of the glass, so that the height of the glass is consistent with the height of the spray head, and the operation convenience is improved; (4) the adjusting tongue is arranged in the spray head, the adjusting tongue can partially shield the length of the nozzle, the width of the sealant extruded by the spray head is adjusted, and the applicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the utility model's fixing device Figure 1 ;

[0018] Figure 3 It is a structural schematic view of the utility model's fixing device Figure 2 ;

[0019] Figure 4 It is a side view of the utility model's fixing device;

[0020] Figure 5 It is a connection relation schematic view of the utility model's fixed plate, baffle and placing plate;

[0021] Figure 6 It is a connection relation schematic view of the utility model's spray head and adjusting tongue;

[0022] Figures: kneader-1, nozzle-2, fixing device-3, support-4, horizontal adjustment frame-5, driving motor one-6, screw one-7, horizontal adjustment block-8, fixed plate-9, placing plate-10, baffle-11, slide rail-12, spacing adjustment frame-13, driving motor two-14, screw two-15, spacing adjustment block-16, guide plate-17, connecting plate-18, lifting mechanism-19, nozzle-20, adjusting tongue-21, flow cavity-22, bolt-23, positioning strip-24. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings.

[0024] A sealant coating device for sealant performance detection, such as Figures 1-5As shown, the device comprises a kneader for extruding sealant, the kneader comprises a body 1 and a nozzle 2, the device further comprises a fixing device 3 for fixing glass, the fixing device 3 is located on the side close to the nozzle 2 of the kneader, the fixing device 3 comprises a support 4, a horizontal adjusting assembly is installed on the support 4, the horizontal adjusting assembly comprises a horizontal adjusting frame 5, a driving motor one 6 is fixedly connected to the outer side wall of one end of the horizontal adjusting frame 5, a horizontally arranged lead screw one 7 is in transmission connection with the output shaft of the driving motor one 6, both ends of the lead screw one 7 are in rotation connection with the horizontal adjusting frame 5, the lead screw one 7 is arranged along the length direction of the horizontal adjusting frame 5, a horizontal adjusting block 8 is in threaded connection with the lead screw one 7, the horizontal adjusting block 8 is in sliding connection with the horizontal adjusting frame 5 at the bottom, a vertically arranged fixing plate 9 is fixedly connected to the outer side wall of the horizontal adjusting block 8, a horizontally arranged placing plate 10 is fixedly connected to the side away from the fixing plate 9 of the fixing plate 9, the width of the placing plate 10 is slightly larger than the thickness of the glass to be placed, a vertically arranged baffle 11 is fixedly connected to the side away from the fixing plate 9 of the placing plate 10, the height of the baffle 11 is far less than the height of the glass to be placed and is lower than the height of the fixing plate 9, so as to expose most of the area of the glass to be placed outside the baffle 11, thereby realizing the coating of the sealant, the height of the support 4 and the height of the body 1 of the kneader are matched, so that the nozzle 20 is consistent with the height of the glass to be coated with sealant. In use, the glass to be coated is placed on the placing plate 10, one side of the glass abuts against the fixing plate 9, one side of the bottom of the glass abuts against the inner side wall of the baffle 11, and the width of the placing plate 10 is slightly wider than the thickness of the glass, which makes the glass placed on the placing plate 10 have a certain inclination angle, because in actual production process, it is often impossible to make the glass completely vertical when fixing large glass, therefore, the glass fixing mode in the application simulates the state of the glass in actual production, so that the performance test of the sealant is closer to the actual state of production, thereby ensuring the accuracy of the test. During use, after the glass is placed, the kneader is started, the position of the horizontal adjusting block 8 is adjusted, so that the glass is located at the appropriate starting position, then the driving motor one 6 is started, the driving motor one 6 rotates and drives the lead screw one 7 to rotate, thereby realizing the horizontal movement of the horizontal adjusting block 8 along the lead screw one 7, and further adjusting the horizontal position of the glass on the fixing plate 9, so that the sealant can be uniformly coated on the surface of the glass, thereby improving the uniformity of the sealant coating to a certain extent and improving the accuracy of the test.

[0025] In another embodiment, as Figures 2-4As shown, both sides of the lead screw 7 have a horizontal adjustment frame 5 fixedly connected to a slide rail 12 parallel to the lead screw 7. The bottom of the horizontal adjustment block 8 has grooves on both sides that match the slide rails 12. The horizontal adjustment block 8 is slidably connected to the slide rails 12 through these grooves. The grooves and slide rails 12 facilitate guiding and limiting the horizontal adjustment frame 5, improving the stability of its movement, and consequently, to some extent, improving the uniformity of the sealant coating and the accuracy of the detection.

[0026] In another embodiment, such as Figures 2-4 As shown, the device also includes a spacing adjustment assembly, which includes a spacing adjustment frame 13. The spacing adjustment frame 13 is fixedly connected to the top of the bracket 4. A second drive motor 14 is fixedly connected to the outer wall of one end of the spacing adjustment frame 13. The output shaft of the second drive motor 14 is driven by a horizontally arranged lead screw 15. The central axis of the second lead screw 15 along the length direction is perpendicular to the central axis of the first lead screw 7 along the length direction. Both ends of the second lead screw 15 are rotatably connected to the spacing adjustment frame 13. A spacing adjustment block 16 is threadedly connected to the second lead screw 15. The bottom of the spacing adjustment block 16 is slidably connected to the spacing adjustment frame 13. The top of the spacing adjustment frame 13 is connected to the horizontal adjustment frame 5. During the glass coating process, there may be a certain gap between the glass on the fixed device 3 and the nozzle 20, which may prevent the sealant from being coated. Therefore, by setting a gap adjustment component and starting the drive motor 14, the drive motor 14 drives the lead screw 15 to rotate, thereby adjusting the position of the gap adjustment block 16 on the lead screw 15, and thus adjusting the gap between the horizontal adjustment frame 5 and the kneader, so as to realize the adjustment of the gap between the glass and the nozzle 20 and ensure the smooth coating of the sealant.

[0027] In another embodiment, such as Figures 2-4 As shown, guide plates 17 are provided on both sides of the spacing adjustment frame 13, parallel to the lead screw 15. The guide plates 17 are fixedly connected to the top of the bracket 4. The spacing adjustment block 16 is m-shaped, and guide grooves adapted to the guide plates 17 are provided on both sides of the spacing adjustment block 16. The guide grooves are slidably connected to the guide plates 17. The setting of the guide plates 17 and guide grooves facilitates the guidance and limiting of the spacing adjustment block 16, improving the stability of the movement of the spacing adjustment block 16.

[0028] In another embodiment, such as Figures 2-4As shown, the spacing adjustment frame 13 and the horizontal adjustment frame 5 are connected through a height adjustment assembly, which comprises a horizontally arranged connecting plate 18 fixedly connected at the top of the spacing adjustment block 16, and a lifting mechanism 19 fixedly connected at the top of the connecting plate 18, and the top of the lifting mechanism 19 is connected with the horizontal adjustment frame 5. In use, since the height of the glass placed on the placing plate 10 in the vertical direction is fixed, if the height of the position to be coated with the sealant is not at the same height as the nozzle 20, the height of the glass may need to be adjusted. Through the arrangement of the height adjustment assembly, the height of the horizontal adjustment frame 5 as a whole can be adjusted, so that the height of the glass on the placing plate 10 can be adjusted, thereby improving the accuracy of the sealant coating position and improving the convenience of operation. The lifting mechanism 19 can be realized by a gas cylinder, an oil cylinder, an electric push rod, etc., which is not limited here. In this embodiment, the lifting mechanism used is a lead screw lifting machine, which is a prior art and its specific structure is not described here. The lead screw lifting machine is two, and the two lead screw lifting machines are synchronously lifted through a connecting shaft, and one of the lead screw lifting machines is provided with a driving assembly for driving the lead screw lifting machine. The driving assembly can be a crank or a motor. By rotating the crank or starting the motor, the motor drives the lead screw of one of the lead screw lifting machines to lift, and the top end of the lead screw is connected with the bottom of the horizontal adjustment frame 5, so as to adjust the height of the horizontal adjustment frame 5. At the same time, through the transmission of the connecting shaft, the lead screw of the other lead screw lifting machine is lifted, so that the two lead screw lifting machines are synchronized. Through the arrangement of the two lead screw lifting machines, the stability of the horizontal adjustment frame 5 supported can be improved, thereby improving the stability of the device. At the same time, the two lead screw lifting machines are connected through the connecting shaft in transmission, so as to realize the synchronization of the two lead screw lifting machines.

[0029] In another embodiment, as shown in Figure 1 and Figure 6 The kneader comprises a spray head 2, which is detachably fixedly connected with the kneader through a bolt 23, and the spray head 2 is vertically arranged and a nozzle 20 is formed on the outer side wall of the spray head 2. The fixing device 3 is located on the side of the kneader close to the spray head 2, and the fixing plate 9 is arranged close to the spray head 2 on the side close to the placing plate 10. The central axis of the fixing plate 9 along the height direction is perpendicular to the central axis of the kneader along the length direction. Through such an arrangement, the sealant sprayed by the spray head 2 of the kneader can be directly coated on the surface of the glass on the placing plate 10. Since the spray head 2 is detachably fixedly connected with the kneader, the spray head 2 can be detached for cleaning, thereby reducing the blockage of the nozzle 20.

[0030] In another embodiment, as shown in Figure 6As shown, the nozzle 2 is provided with an opening at one end close to the connection with the kneader, and the other end of the nozzle 2 is closed, that is, the top of the nozzle 2 is open, the bottom of the nozzle 2 is closed, the inside of the nozzle 2 is a cavity structure, the nozzle 20 is a long strip-shaped through hole, and the nozzle 20 is connected with the inside cavity of the nozzle 2, and the inside cavity of the nozzle 2 is detachably and fixedly connected with an adjusting tongue 21, one side of the adjusting tongue 21 abuts against and is in close contact with the inner side wall of the nozzle 2, and the nozzle 2 is located at this side, the other side of the adjusting tongue 21 is spaced apart from the inner wall of the nozzle 2 and the spacing is referred to as a flow cavity 22, the end of the adjusting tongue 21 is spaced apart from the closed end of the nozzle 2, the end of the adjusting tongue 21 shields part of the nozzle 20, one end of the flow cavity 22 is connected with the opening of the nozzle 2, and the other end of the flow cavity 22 is connected with the nozzle 20. The adjusting tongue 21 has different specifications, the lengths of the adjusting tongues 21 of different specifications are different, and the ends of the adjusting tongues 21 of different specifications are located at different positions of the nozzle 20 to change the length of the nozzle 20. By adjusting the length of the adjusting tongue 21, the length of the nozzle 20 shielded by the end of the adjusting tongue 21 is different, so that the width of the sealant extruded at the nozzle 20 is different, thereby adjusting the width of the sealant coated on the glass, and expanding the application range of the device. Since one side of the adjusting tongue 21 is in close contact with the inner side wall of the nozzle 2, the sealant needs to flow out of the flow cavity 22. In use, the adjusting tongue 21 with a suitable length is selected according to the need, the width of the sealant formed after each adjusting tongue 21 is installed is measured and marked on the surface of the adjusting tongue 21, and the adjusting tongue 21 is inserted into the nozzle 2 and fixedly connected with the nozzle 2 according to the need, the end of the adjusting tongue 21 shields a certain length of the nozzle 20, and the sealant is extruded out of the open nozzle 20 after passing through the opening of the nozzle 2 and the flow cavity 22, thereby completing the extrusion action of the sealant.

[0031] In another embodiment, as shown in Figure 6 An installation hole is formed in the nozzle 2, a threaded hole is formed in the adjusting tongue 21, a bolt 23 passes through the installation hole and is threadedly connected with the threaded hole, and the nozzle 2 is detachably and fixedly connected with the adjusting tongue 21 through the bolt 23, so that the adjusting tongue 21 is convenient to replace and clean. In addition, after the adjusting tongues 21 of different specifications are fixed, the distance between the adjusting tongue 21 close to the opening of the nozzle 2 and the opening of the nozzle 2 is the same, but the distance between the other end of the adjusting tongue 21 and the closed end of the nozzle 2 is different, so that the adjusting tongue 21 can shield nozzles 20 of different lengths, and the width of the sealant can be adjusted.

[0032] In another embodiment, as shown in Figure 6As shown, the end of the adjusting tongue 21 close to the nozzle 20 is fixedly connected with a positioning strip 24, the nozzle 2 is provided with a positioning groove matched with the positioning strip 24, and the end of the positioning strip 24 is located in the positioning groove. Through the positioning strip 24, the installation position of the adjusting tongue 21 can be positioned, after the positioning strip 24 reaches the positioning groove, the threaded hole is aligned with the mounting hole, and the mounting bolt 23 can fix the adjusting tongue 21. At the same time, since the distance between the end of the adjusting tongue 21 of different specifications and the closed end of the nozzle 2 is different, the length of the positioning strip 24 of the adjusting tongue 21 of different specifications is also different, and the length is that the end of the positioning strip 24 abuts against the positioning groove.

[0033] Method for using: when using, the glass is placed on the placing plate 10, one side of the glass abuts against the fixed plate 9, the other end of the glass abuts against the baffle 11, the driving motor two 14 is started, the lead screw two 15 drives the spacing adjusting block 16 to move, so that the spacing between the horizontal adjusting frame 5 and the kneader is adjusted, and then the glass is close to the nozzle 2, at the same time, the height of the horizontal adjusting frame 5 is adjusted by the height adjusting assembly, so that the glass is matched with the height of the nozzle 20, then the kneader and the driving motor one 6 are started, the driving motor one 6 drives the lead screw one 7 to rotate, so that the glass is uniformly moved along the lead screw one 7 by the horizontal adjusting block 8 and the fixed plate 9, the sealant is extruded and coated on the surface of the glass through the opening end of the nozzle 2, the flow cavity 22 and the nozzle 20, after completion, the kneader and the driving motor one 6 are closed.

[0034] The above embodiments are not limited in shape, material, structure, etc. of the utility model in any form, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model are within the protection scope of the utility model technical scheme.

Claims

1. A sealant coating apparatus for testing sealant performance, the apparatus comprising a kneader for extruding sealant, the kneader comprising a body and a nozzle, characterized in that: The device also includes a fixing device for fixing the glass, which is located near the kneader nozzle. The fixing device includes a bracket, on which a horizontal adjustment assembly is mounted. The horizontal adjustment assembly includes a horizontal adjustment frame, one end of which is fixedly connected to a drive motor. The output shaft of the drive motor is driven by a horizontally arranged lead screw. Both ends of the lead screw are rotatably connected to the horizontal adjustment frame. The lead screw is arranged along the length of the horizontal adjustment frame. A horizontal adjustment block is threaded onto the lead screw. The bottom of the horizontal adjustment block is slidably connected to the horizontal adjustment frame. A vertically arranged fixing plate is fixedly connected to the horizontal adjustment block. A horizontally arranged placement plate is fixedly connected to the side of the fixing plate away from the horizontal adjustment block. A vertically arranged baffle is fixedly connected to the side of the placement plate away from the fixing plate. The height of the baffle is lower than the height of the fixing plate.

2. The sealant coating device for sealant performance testing according to claim 1, characterized in that: Both sides of the lead screw are fixedly connected to the horizontal adjustment frame with a slide rail parallel to the lead screw. Both sides of the bottom of the horizontal adjustment block are provided with slide grooves that are adapted to the slide rails. The horizontal adjustment block is slidably connected to the slide rail through the slide grooves.

3. The sealant coating device for sealant performance testing according to claim 2, characterized in that: The device also includes a spacing adjustment assembly, which includes a spacing adjustment frame. The spacing adjustment frame is fixedly connected to the top of the support. A second drive motor is fixedly connected to the outer wall of one end of the spacing adjustment frame. The output shaft of the second drive motor is driven by a second horizontally arranged lead screw. The central axis of the second lead screw along its length is perpendicular to the central axis of the first lead screw along its length. Both ends of the second lead screw are rotatably connected to the spacing adjustment frame. A spacing adjustment block is threaded onto the second lead screw. The bottom of the spacing adjustment block is slidably connected to the spacing adjustment frame. The top of the spacing adjustment frame is connected to the horizontal adjustment frame.

4. The sealant coating apparatus for sealant performance testing according to claim 3, characterized in that: Both sides of the spacing adjustment frame are provided with guide plates that are parallel to the lead screw. The guide plates are fixedly connected to the top of the bracket. The spacing adjustment block is M-shaped, and both sides of the spacing adjustment block are provided with guide grooves that are adapted to the guide plates. The guide grooves are slidably connected to the guide plates.

5. The sealant coating apparatus for sealant performance testing according to claim 3, characterized in that: The spacing adjustment frame and the horizontal adjustment frame are connected by a height adjustment component. The height adjustment component includes a horizontally set connecting plate. The bottom of the connecting plate is fixedly connected to the top of the spacing adjustment block. A lifting mechanism is fixedly connected to the top of the connecting plate. The top of the lifting mechanism is connected to the horizontal adjustment frame.

6. The sealant coating apparatus for sealant performance testing according to claim 1, characterized in that: The nozzle and the kneader are detachably fixedly connected by bolts. The nozzle is vertically set and a nozzle is opened on the outside of the nozzle. The fixing device is located on the side of the kneader close to the nozzle, and the fixing plate is set close to the nozzle on the side of the placement plate close to the fixing plate.

7. The sealant coating apparatus for sealant performance testing according to claim 6, characterized in that: The nozzle is open at one end near its connection with the kneader, and closed at the other end. The nozzle has a hollow internal structure, and the nozzle is an elongated through hole that communicates with the internal cavity of the nozzle. An adjusting tongue is detachably and fixedly connected to the internal cavity of the nozzle. One side of the adjusting tongue abuts against and fits against the inner wall of the nozzle, and the nozzle is located on this side. The other side of the adjusting tongue is spaced apart from the inner wall of the nozzle, and this space is called the flow cavity. The end of the adjusting tongue is spaced apart from the closed end of the nozzle. One end of the flow cavity is connected to the opening of the nozzle, and the other end of the flow cavity is connected to the nozzle.

8. The sealant coating apparatus for sealant performance testing according to claim 7, characterized in that: The adjusting tongue has different specifications, and the length of the adjusting tongue varies with the specifications. The ends of the adjusting tongues of different specifications are located at different positions on the nozzle to change the length of the nozzle.

9. A sealant coating apparatus for sealant performance testing according to claim 7, characterized in that: The nozzle has a mounting hole and the adjusting tongue has a threaded hole. The bolt passes through the mounting hole and is threaded into the threaded hole. The nozzle is detachably fixed to the adjusting tongue by the bolt.

10. A sealant coating apparatus for sealant performance testing according to claim 8, characterized in that: A positioning strip is fixedly connected to the end of the adjusting tongue near the nozzle. A positioning groove adapted to the positioning strip is opened on the nozzle head, and the end of the positioning strip is located in the positioning groove.

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