Gluing method for structural adhesive on outer side face of unit type curtain wall plate

Abstract

The invention discloses a gluing method for structural adhesive on the outer side face of a unit type curtain wall plate. A multi-axis driving mechanism is arranged on the gluing machine and can drive the gluing machine head to linearly move along the Y axis, the X axis, the Z axis and rotate in the horizontal plane; the glue outlet nozzle of the gluing machine head is arranged on the floating mechanism, the glue outlet nozzle is in a floating state in the gluing process, the floating mechanism is supported on the upper plane of glass of a unit type curtain wall plate through the vertical supporting device, and even if the planeness of the glass is not ideal, it can be guaranteed that the glue outlet nozzle is always located in the center of a to-be-glued glue line gap; similarly, the floating mechanism is supported on the side face of the glass of the unit type curtain wall plate through the horizontal supporting device, even if the straightness of the side edge of the glass is not ideal, it can be guaranteed that the depth size of the portion, stretching into the glue line to be glued, of the glue outlet nozzle is constant, and the gluing quality is easily guaranteed.

Description

Technical Field

[0001] The invention relates to a gluing method, in particular to a gluing method suitable for gluing the outer side of a unitized curtain wall panel, and belongs to the technical field of mechanical equipment for building decoration. Background Art

[0002] Unitized curtain wall panels are industrialized products of the building's exterior enclosure system. They are prefabricated in the factory as complete units from panels and supporting frames. This standardized module can be directly installed and spliced ​​on site to form a curtain wall system. It has the advantages of a short construction period, high precision, and good seismic performance. According to the structure, it can be divided into horizontal sliding type and horizontal locking type. According to the exterior decoration effect, it can be divided into three types: hidden frame, exposed frame, and semi-hidden. According to its material, it can be divided into aluminum alloy glass curtain wall, aluminum plate curtain wall, steel plate curtain wall, stone plate curtain wall, ceramic plate curtain wall, and combined curtain wall made of the above materials. The curtain wall system must meet the wind load requirements of high-rise or super-high-rise buildings. Therefore, the glass and aluminum alloy frames need to be glued and fixed in advance, and then processed into glass curtain wall unit curtain wall panels to be installed. In the curtain wall production process, the gluing step is crucial, and the quality of the gluing is directly related to the service life, aesthetics, and safety of the curtain wall. The production process of curtain wall panels generally uses double-sided tape to combine and fix the glass and aluminum alloy frames, forming a narrow gap (the thickness of the double-sided tape, generally 5-8mm) and a deep gap (generally 10-15mm) on the sides of the curtain wall panels. Structural adhesive is then injected into the gap. The glue seam must be continuous, full, flat, smooth, and beautiful, without bubbles, joints, residual glue, flash, or stains. The corners must have a smooth transition, no broken parts, and must be flush with the glass. Because the gap is narrow and deep, the nozzle of the caulking gun should be inserted to an appropriate depth when injecting glue, so that the sealant can be continuously, evenly and fully injected into the gap. This operation is quite difficult. Therefore, the existing caulking method mostly uses manual handheld caulking guns to inject glue. This is not only time-consuming and labor-intensive, but also unstable, resulting in poor caulking quality. Glue overflow is prone to cause surface contamination of glass and aluminum, or quality defects such as discontinuous, incomplete injection, and bubbles. Corners are especially prone to incomplete glue injection, requiring secondary filling, resulting in lamination of structural adhesive in the filled area, and posing a major risk to bonding performance. Therefore, caulking operations usually require highly qualified and responsible personnel.

[0003] In the prior art, when gluing glass curtain walls with a gluing machine, since it is necessary to gluing four groups of side surfaces of the glass curtain wall, after gluing two groups of parallel side surfaces, the staff needs to adjust the angle of the gluing head so that the gluing head can adapt to gluing the other two groups of parallel side surfaces. The overall operation is relatively troublesome, and the gluing quality is average, especially at corners, where the glue is easily incomplete and needs secondary filling. Therefore, the use of a gluing machine for gluing glass curtain walls has not yet been widely used. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for applying structural adhesive to the outer surface of a unitized curtain wall panel to solve the problems existing in the background art.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: A method for applying structural adhesive to the outer surface of a unitized curtain wall panel, characterized by comprising the following steps: S1: Initial state: the glue machine is turned on; the glue machine head is raised; The glue machine includes: a base, a glue supply mechanism, a workpiece clamping mechanism, and a multi-axis drive mechanism. The multi-axis drive mechanism includes a movable column, a crossbeam, a lifting column, and a rotary motor. The lower end of the movable column is slidably connected to the base, and the Y-axis drive mechanism drives the movable column to slide along the Y-axis direction; the crossbeam is connected to the upper end of the movable column; a slide is slidably connected to the crossbeam, and the X-axis drive mechanism drives the slide to slide along the X-axis direction; the lifting column is slidably connected to the slide, and the Z-axis drive mechanism drives the lifting column to slide along the Z-axis direction; the rotary motor is arranged at the lower end of the lifting column, and a connecting seat is arranged on the output shaft of the rotary motor, and the glue machine head is connected to the connecting seat; The glue dispenser head includes a connecting seat that can be connected to the driving terminal of the glue dispenser multi-axis driving mechanism, and a glue outlet connected to the glue supply mechanism. The glue outlet is connected to the connecting seat through a floating mechanism. S2: transport the assembled unitized curtain wall panels (hereinafter referred to as workpieces) to the gluing station; S3: The workpiece clamping mechanism positions and clamps the workpiece; S4: The Z-axis drive mechanism drives the glue gun head to descend, and the vertical support wheel touches the glass on the workpiece. The vertical support wheel lifts the front vertical plate, the horizontal support plate, and the slider of the vertical guide rail to slide upward. The slider of the vertical guide rail triggers the first proximity switch, and the Z-axis drive mechanism stops driving; S5: The X-axis drive mechanism drives the glue applicator head forward, the horizontal support wheel touches the workpiece, and the trigger block at the rear end of the probe triggers the second proximity switch; the X-axis drive mechanism drives the glue applicator head to continue moving forward by the preset distance, the horizontal support wheel touches the side of the glass on the workpiece, and the outlet end of the glue nozzle enters the glue gap to be glued, and the X-axis drive mechanism stops driving; S6: The Y-axis drive mechanism drives the glue gun head to move along the Y-axis, starts the glue application process, and glues the first side edge of the workpiece. The vertical support wheel rolls along the upper plane of the workpiece glass, the horizontal support wheel rolls along the side of the workpiece glass, and the edge-finding device automatically finds the edge. S7: The Y-axis drive mechanism drives the glue spraying machine head to continue moving. When it approaches the first corner of the workpiece, the horizontal wheel at the front end of the edge-finding device probe rod separates from the workpiece, and the trigger block at the rear end of the probe rod triggers the second proximity switch. The control system controls the Y-axis drive mechanism to drive the glue spraying machine head to continue moving forward a preset distance. When the glue nozzle reaches the first corner of the workpiece, the Y-axis drive mechanism stops driving, the rear vertical support wheel is supported on the workpiece, and the front vertical support wheel is suspended in the air. S8: The rotary motor drives the glue gun head to rotate 90 degrees, the front vertical support wheel is supported on the workpiece, and the rear vertical support wheel is suspended in the air; S9: The X-axis drive mechanism drives the glue gun head to move along the X-axis to continue the glue application process and glue the second side of the workpiece; S10: The Y-axis drive mechanism, X-axis drive mechanism, and rotary motor act alternately to drive the glue spraying head to spray glue on the outside of the workpiece along the Y and X directions for one circle; S11: After gluing is completed, the X-axis drive mechanism drives the glue applicator head to move backward, the horizontal support wheel separates from the workpiece, and the trigger block at the rear end of the probe triggers the second proximity switch; the X-axis drive mechanism drives the glue applicator head to continue moving backward by the preset distance, the horizontal support wheel separates from the side of the glass on the workpiece, and the outlet end of the glue nozzle leaves the glue gap to be glued, and the X-axis drive mechanism stops driving; S12: The Z-axis drive mechanism drives the glue gun head to rise and return to the initial position; S13: The conveying device on the glue machine conveys the workpiece to the next process; S14: transporting the next workpiece to the workpiece clamping mechanism; S15: Repeat steps S3-S14 to glue the next workpiece.

[0006] In the above-mentioned method of applying structural glue to the outer surface of the unitized curtain wall panel, the floating mechanism includes a horizontal guide rail mounting plate, a horizontal guide rail pair, a vertical guide rail mounting plate, a vertical guide rail pair, and a neutral plate. The guide rails of the horizontal guide rail pair are arranged on the horizontal guide rail mounting plate, the vertical guide rail mounting plate is arranged on the slider of the horizontal guide rail pair, the guide rails of the vertical guide rail pair are arranged on the vertical guide rail mounting plate, the neutral plate is arranged on the slider of the vertical guide rail pair, and the glue outlet nozzle is arranged on the neutral plate.

[0007] In the above-mentioned method of applying structural glue to the outer surface of the unit curtain wall panel, a vertical support device and a horizontal support device are provided on the floating mechanism. The vertical support device vertically positions the glue nozzle, and the horizontal support device horizontally positions the glue nozzle. The horizontal support device is located above the glue nozzle.

[0008] By adopting the above technical solution, the glue nozzle is arranged on the floating mechanism, and the glue nozzle is in a floating state during the gluing process. The floating mechanism is supported on the upper plane of the glass of the unit curtain wall panel through the vertical support device. Even if the flatness of the glass is not ideal, it can be ensured that the glue nozzle is always in the center of the gap of the glue seam to be glued; similarly, the floating mechanism is supported on the side of the glass of the unit curtain wall panel through the horizontal support device. Even if the straightness of the side of the glass is not ideal, it can be ensured that the depth of the glue nozzle extending into the glue seam to be glued is constant, which makes it easy to ensure the quality of gluing.

[0009] Furthermore, the vertical support device includes a horizontal support plate, a front vertical plate, and a vertical support wheel. The rear end of the horizontal support plate is connected to the slider of the vertical guide rail pair, the front vertical plate is arranged at the front end of the horizontal support plate, and the vertical support wheel is arranged at the lower end of the front vertical plate. A vertical adjustment device is arranged between the front vertical plate and the horizontal support plate; the horizontal support device includes a horizontal support wheel and an adjusting screw. A horizontal long hole is provided on the horizontal support plate. After the adjusting screw passes through the horizontal long hole, the lower end is rotated to connect to the horizontal support wheel. Locking nuts are respectively provided on the adjusting screw and on the upper and lower sides of the horizontal support plate.

[0010] The top end of the adjusting screw is provided with a vertical threaded hole, and the bottom end of the adjusting screw is screwed into the vertical threaded hole and then passes through the vertical through hole. A shaft retaining ring is provided on the adjusting screw and on the upper and lower sides of the horizontal support plate; when the adjusting screw is rotated, the front plate is driven to slide up and down along the side surface of the front end of the horizontal support plate, and a vertical long hole is provided on the front plate, and a screw hole is provided on the front end surface of the horizontal support plate. The locking bolt passes through the vertical long hole and is screwed into the screw hole to fix the front plate to the horizontal support plate; By adopting the above technical solution, the vertical adjustment device can flexibly and conveniently adjust the vertical position of the glue nozzle according to the batch and size of the workpiece, so that after the vertical support wheel is supported on the workpiece, the glue nozzle is located in the center of the gap of the glue seam to be glued on the side of the workpiece; and the horizontal support device can flexibly and conveniently adjust the depth of the glue nozzle entering the glue seam to be glued according to the batch and size of the workpiece, which is generally 2-5mm.

[0011] The vertical support wheels include a front vertical support wheel and a rear vertical support wheel arranged in front and behind along the travel direction of the glue machine head; in horizontal projection, the glue outlet is located between the front vertical support wheel and the rear vertical support wheel; By adopting the above technical solution, combined with the aforementioned horizontal support device being located above the glue nozzle, it can be concluded that the vertical support wheels and horizontal support wheels are all centrally located near the glue nozzle, allowing the glue nozzle to change with the plane and side conditions of the workpiece to be glued, further ensuring the quality of glue application. By arranging two vertical support wheels, one in front and one behind, the glue head can always have one vertical support wheel supporting the workpiece when turning a corner, which is conducive to maintaining the continuity and stability of the glue application operation.

[0012] In the above-mentioned method of applying structural glue to the outer surface of the unitized curtain wall panel, an edge-finding device is provided on the neutral plate in front of the glue outlet nozzle, including a probe rod, a flange-type linear bearing, and a horizontal support wheel. A vertical long hole is provided on the neutral plate, and the flange-type linear bearing is provided in the vertical long hole. The probe rod passes through the front end of the inner hole of the bearing and is connected to the horizontal support wheel. A second proximity switch is provided on the rear side of the neutral plate, and the trigger block of the second proximity switch is provided at the rear end of the probe rod. A compression spring is provided on the probe rod between the horizontal support wheel and the flange-type linear bearing.

[0013] By adopting the above technical solution, an edge-finding device is provided on the neutral plate in front of the glue nozzle. The edge-finding device has two functions. The first function is that before the gluing operation starts, the X-axis drive mechanism drives the glue machine head to move forward, the horizontal support wheel touches the glass or aluminum frame on the workpiece, the probe rod extends backward, the spring is compressed, and the trigger block at the rear end of the probe rod triggers the second proximity switch, providing a signal to the X-axis drive mechanism, driving the glue machine head to continue moving forward the distance preset by the program, the horizontal support wheel touches the glass on the workpiece, and at the same time, the outlet end of the glue nozzle enters the glue gap to be glued, and the X-axis drive mechanism stops driving. The second function is the normal edge-finding function during the gluing process. The Y-axis drive mechanism / X-axis drive mechanism drives the gluing machine head to move. When it approaches the corner of the workpiece, the horizontal wheel at the front end of the edge-finding device probe rod separates from the workpiece, and the probe rod pops forward under the action of the spring force. The trigger block at the rear end of the probe rod triggers the second proximity switch to provide a signal to the control system. The control system controls the Y-axis drive mechanism / X-axis drive mechanism to drive the gluing machine head to continue moving forward according to the preset time or distance. When the glue nozzle reaches the corner of the workpiece, the Y-axis drive mechanism / X-axis drive mechanism stops driving.

[0014] In the above-mentioned method of applying structural glue to the outer surface of the unitized curtain wall panel, a front limit block and a rear limit block 52-2 are respectively provided on the front and rear ends of the guide rail of the horizontal guide rail pair on the horizontal guide rail mounting plate; an upper limit block and a lower limit block are respectively provided on the upper and lower ends of the guide rail of the vertical guide rail mounting plate on the vertical guide rail mounting plate; a horizontal tension spring is provided between the front limit block and the vertical guide rail mounting plate; and a vertical tension spring is provided between the slider of the vertical guide rail pair and the upper part of the vertical guide rail mounting plate.

[0015] By adopting the above technical solution, a tension spring is set between the front limit block and the vertical guide rail mounting plate, so that the horizontal support wheel can always be pressed against the workpiece and roll along the side of the workpiece glass; a tension spring is set between the slider of the vertical guide rail pair and the upper part of the vertical guide rail mounting plate, and part of the weight of the glue machine head can be transferred to the vertical guide rail mounting plate through the tension spring, which can ensure that the vertical support wheel is always pressed against the workpiece without exerting a large gravity on the workpiece, thereby preventing damage to the workpiece surface.

[0016] In the above-mentioned method for applying structural adhesive to the outer surface of the unitized curtain wall panel, a first proximity switch is provided on the vertical guide rail mounting plate, located above the slider of the vertical guide rail pair.

[0017] By adopting the above technical solution, a first proximity switch is set on the vertical guide rail mounting plate and on the upper part of the slider of the vertical guide rail pair. Before the gluing operation starts, the Z-axis drive mechanism drives the gluing machine head to descend, and the vertical support wheel touches the glass on the workpiece. The vertical support wheel lifts the front vertical plate, the horizontal support plate, and the slider of the vertical guide rail pair to slide upward. The slider of the vertical guide rail pair triggers the first proximity switch, providing a signal for the Z-axis drive mechanism to stop driving.

[0018] In the above-mentioned method for applying structural adhesive to the outer surface of the unitized curtain wall panel, the adhesive nozzle has a flat structure, and the vertical dimension of the adhesive nozzle outlet end is 1-2 mm smaller than the adhesive seam gap to be glued.

[0019] By adopting the above technical solution, the flat-structured glue discharge nozzle has a large glue discharge area, a fast glue discharge speed, and a uniform glue amount, which is conducive to rapid glue dispensing and quick filling of the glue seam.

[0020] In the above method for applying structural adhesive to the outer surface of the unitized curtain wall panel, before step S1, there is also step S0: S01: Adjust the vertical position of the glue nozzle: Loosen the locking bolt, turn the hand wheel, and adjust the position of the vertical support wheel up and down so that after the vertical support wheel is supported on the workpiece, the glue nozzle is located in the center of the gap on the side of the workpiece where glue is to be applied. S02: Adjust the horizontal position of the glue nozzle: Loosen the locking nut and rotate the adjusting screw so that the horizontal support wheel can be supported on the glass side of the workpiece; adjust the position of the adjusting screw in the horizontal long hole on the horizontal support plate so that after the horizontal support wheel is supported on the glass side of the workpiece, the glue nozzle can enter the gap of the glue seam to be glued.

[0021] Beneficial effects of the present invention: Compared with the prior art, the present invention provides a glue applicator head, a glue applicator and a glue applicator method suitable for gluing the outer side surfaces of unitized curtain wall panels. The glue nozzle is arranged on a floating mechanism. The glue nozzle is in a floating state during the gluing process. The floating mechanism is supported on the upper plane of the glass of the unitized curtain wall panel through a vertical support device. Even if the flatness of the glass is not ideal, it can be ensured that the glue nozzle is always in the center of the gap of the glue seam to be glued; similarly, the floating mechanism is supported on the side of the glass of the unitized curtain wall panel through a horizontal support device. Even if the straightness of the side of the glass is not ideal, it can be ensured that the depth of the glue nozzle extending into the glue seam to be glued is constant, thereby easily ensuring the quality of gluing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the glue spraying machine of the present invention.

[0023] Figure 2 It is a schematic diagram of the conveying device and workpiece clamping mechanism in the present invention.

[0024] Figure 3 It is a front side schematic diagram of the glue spraying machine head in the present invention.

[0025] Figure 4 It is a side view schematic diagram of the glue spraying machine head in the present invention.

[0026] Figure 5 It is a partial cross-sectional schematic diagram of the glue gun head in the present invention.

[0027] Figure 6 It is a schematic diagram of the rear side of the glue spraying machine head in the present invention.

[0028] Figure 7 This is a schematic diagram of the glue gun head of the present invention in an initial state.

[0029] Figure 8 This is a schematic diagram of the present invention showing the glue gun head descending and the vertical support wheels supporting the workpiece.

[0030] Figure 9 This is a schematic diagram of the horizontal support wheel of the glue spraying machine head of the present invention resting on the workpiece and the outlet end of the glue nozzle entering the glue gap to be glued.

[0031] Figure 10 This is a schematic diagram of the gluing machine head of the present invention applying glue to the front section of the first side edge of a workpiece.

[0032] Figure 11 This is a schematic diagram of the horizontal wheel at the front end of the edge-finding device probe detaching from the workpiece when the glue applicator head of the present invention is applying glue along the first side edge of the workpiece and approaches the first corner of the workpiece.

[0033] Figure 12This is a schematic diagram of the glue spraying machine head of the present invention applying glue along the first side of the workpiece and the glue nozzle reaching the first corner of the workpiece.

[0034] Figure 13 This is a schematic diagram of the rotation of the glue gun head of the present invention.

[0035] Figure 14 This is a schematic diagram of the glue spraying machine head of the present invention after turning to the second side of the workpiece.

[0036] Figure 15 This is a schematic diagram of the gluing machine head of the present invention applying glue to the second side edge of a workpiece.

[0037] Figure 16 This is a schematic diagram of the glue gun head of the present invention applying glue to the second side, third side, and fourth side of the workpiece in sequence, and then turning to the rear section of the first side of the workpiece to continue applying glue.

[0038] Figure 17 This is a schematic diagram of the horizontal support wheel of the glue spraying machine head of the present invention being separated from the workpiece and the outlet end of the glue nozzle leaving the glue gap to be glued after the glue spraying is completed.

[0039] Figure 18 This is the overall schematic diagram of the workpiece after gluing.

[0040] Figure 19 This is a partial enlarged schematic diagram of the workpiece after gluing.

[0041] In the figure: 1 base, 2 movable column, 3 lifting column, 4 beam, 5 Glue machine head, 51 connecting seat, 52 horizontal guide rail mounting plate, 52-1 front limit block, 52-2 rear limit block, 53 horizontal guide rail pair, 53-1 guide rail of horizontal guide rail pair, 53-2 slider of horizontal guide rail pair, 54 horizontal tension spring, 55 vertical guide rail mounting plate, 55-1 upper limit block, 55-2 lower limit block, 56 vertical tension spring, 57 horizontal support plate, 58 vertical guide rail pair, 58-1 guide rail of vertical guide rail pair, 58-2 slider of vertical guide rail pair, 59 connecting plate, 510 side plate, 511 neutral plate, 512 edge finding device, 512-1 horizontal support wheel, 512-2 compression spring, 512-3 flange linear bearing, 512-4 probe rod, 512-5 trigger block, 513 glue nozzle, 514 front vertical support wheel, 515 rear vertical support wheel, 516 front vertical plate, 516-1 side vertical plate, 516-2 top plate, 517 vertical adjustment device, 517-1 adjusting screw, 517-2 handwheel, 517-3 shaft retaining ring, 518 adjusting screw, 519 locking nut, 520 horizontal support wheel, 521 first proximity switch, 522 second proximity switch, 523 dispensing valve, 524 bottom plate, 6 workpieces, 6-1 tempered glass, 6-2 molecular sieve aluminum strips, 6-3 glass sealant, 6-4 aluminum frame, 6-5 double-sided tape, 6-6 structural adhesive (the glue area of ​​this patent), 7 control system, 8 conveying device, 9 workpiece clamping mechanism, 10 rotating motor. DETAILED DESCRIPTION

[0042] In order to clearly illustrate the technical features of the present invention, the present invention is further described below through non-limiting embodiments in conjunction with the accompanying drawings.

[0043] The front, rear, left and right directions described in the present invention are described based on the front, rear, left and right directions shown in the accompanying drawings. For ease of explanation, only the parts related to the embodiments of the present invention are shown. Example

[0044] Please see Figures 3 to 6 A method for applying structural glue to the outer surface of a unitized curtain wall panel adopts a glue machine head, which includes a connecting seat 51 that can be connected to the driving terminal of the multi-axis driving mechanism of the glue machine, and a glue nozzle 513 connected to the glue supply mechanism (not shown in the figure). The glue nozzle 513 is connected to the connecting seat 51 through a floating mechanism.

[0045] 2. The floating mechanism includes a horizontal guide rail mounting plate 52, a horizontal guide rail pair 53, a vertical guide rail mounting plate 55, a vertical guide rail pair 58, and a neutral plate 511. The guide rail 53-1 of the horizontal guide rail pair is mounted on the horizontal guide rail mounting plate 52, the vertical guide rail mounting plate 55 is mounted on the slider 53-2 of the horizontal guide rail pair, the guide rail 58-1 of the vertical guide rail pair is mounted on the vertical guide rail mounting plate 55, the neutral plate 511 is mounted on the slider 58-2 of the vertical guide rail pair, and the glue nozzle 513 is mounted on the neutral plate 511. For ease of connection, a connecting plate 59 is first mounted on the slider 58-2 of the vertical guide rail pair. The lower portion of the connecting plate 59 is connected to a forward-extending bottom plate 524, the front end of which is connected to the neutral plate 511. To further secure the connection, forward-extending side plates 510 are connected to the sides of the connecting plate 59, the front ends of which are connected to the neutral plate 511.

[0046] 3. A vertical support device and a horizontal support device are provided on the above-mentioned floating mechanism. The vertical support device positions the glue nozzle 513 in the vertical direction, and the horizontal support device positions the glue nozzle 513 in the horizontal direction. The horizontal support device is located above the glue nozzle 513.

[0047] 4. Specifically, the vertical support device includes a horizontal support plate 57, a front vertical plate 516, and vertical support wheels. The rear end of the horizontal support plate 57 is connected to the upper portion of the connecting plate 59. The front vertical plate 516 is disposed at the front end of the horizontal support plate 57. The vertical support wheel is disposed at the lower end of the front vertical plate 516. A vertical adjustment device 517 is disposed between the front vertical plate 516 and the horizontal support plate 57. The horizontal support device includes a horizontal support wheel 520 and an adjustment screw 518. The horizontal support plate 57 has a horizontal slot. The adjustment screw 518 passes through the slot and pivotally connects to the horizontal support wheel 520 at its lower end. Locking nuts 519 are disposed on the adjustment screw 518, located on the upper and lower sides of the horizontal support plate 57. In this embodiment, the vertical and horizontal support wheels 520 utilize universal ball bearings with rods.

[0048] 5. Side panels 516-1 are extended rearward on both sides of the front vertical plate 516. The distance between the two side panels 516-1 corresponds to the width of the horizontal support plate 57. A top plate 516-2 is extended rearward on the upper part of the front vertical plate 516. The vertical adjustment device 517 includes an adjustment screw 517-1. A vertical threaded hole is provided on the top plate 516-2. A vertical through hole is provided on the horizontal support plate 57 corresponding to the vertical threaded hole. A hand wheel 517-2 is provided on the upper end of the adjustment screw 517-1. The adjustment screw 517-1 is rotated in a direction opposite to the vertical threaded hole. The lower end of the adjusting screw 517-1 is screwed into the vertical threaded hole and then passes through the vertical through hole. A shaft retaining ring 517-3 is respectively provided on the upper and lower sides of the horizontal support plate 57; when the adjusting screw 517-1 is rotated, the front vertical plate 516 is driven to slide up and down along the side surface of the front end of the horizontal support plate 57. Two vertical long holes are provided on the front vertical plate 516, and corresponding screw holes are provided on the front end surface of the horizontal support plate 57. Locking bolts (not shown in the figure) are passed through the vertical long holes and screwed into the screw holes to fix the front vertical plate 516 to the horizontal support plate 57; The vertical support wheels include a front vertical support wheel 514 and a rear vertical support wheel 515 arranged in front and back along the travel direction of the glue machine head 5; in horizontal projection, the glue nozzle 513 is located between the front vertical support wheel 514 and the rear vertical support wheel 515; 6. An edge-finding device 512 is provided on the neutral plate 511, in front of the glue nozzle 513, and includes a probe rod 512-4, a flange-type linear bearing 512-3, and a horizontal support wheel 512-1. A vertical long hole is provided on the neutral plate 511, and the flange-type linear bearing 512-3 is provided in the vertical long hole. The probe rod 512-4 passes through the front end of the inner hole of the bearing and is connected to the horizontal support wheel 512-1. In this embodiment, the horizontal support wheel 512-1 also adopts a universal ball bearing with a rod; a second proximity switch 522 is provided on the rear side surface of the neutral plate 511, and a trigger block 512-5 of the second proximity switch 522 is provided at the rear end of the probe rod 512-4. A compression spring 512-2 is sleeved on the probe rod 512-4, between the horizontal support wheel 512-1 and the flange-type linear bearing 512-3.

[0049] 7. On the horizontal guide rail mounting plate 52, a front limit block 52-1 and a rear limit block 52-2 are respectively provided at the front and rear ends of the guide rail 53-1 of the horizontal guide rail pair; on the vertical guide rail mounting plate 55, an upper limit block 55-1 and a lower limit block 55-2 are respectively provided at the upper and lower ends of the guide rail 58-1 of the vertical guide rail pair; a horizontal tension spring 54 is provided between the front limit block 52-1 and the vertical guide rail mounting plate 55; and a vertical tension spring 56 is provided between the slider 58-2 of the vertical guide rail pair and the upper part of the vertical guide rail mounting plate 55.

[0050] 8. A first proximity switch 521 is provided on the vertical guide rail mounting plate 55, above the slider 58-2 of the vertical guide rail pair. In this embodiment, the first proximity switch 521 and the second proximity switch 522 are Panasonic sensors GY-F8A, and both the first proximity switch 521 and the second proximity switch 522 are connected to the control system 7.

[0051] 9. The glue nozzle 513 is flat, with the outlet end of the nozzle 513 1-2 mm smaller than the gap to be glued. Testing has shown that when the gap is 6 mm, a 5 mm outlet end of the nozzle 513 provides excellent glue application. When the gap is 8 mm, a 6 mm outlet end of the nozzle 513 provides excellent glue application.

[0052] In this embodiment, a dispensing valve 523 is installed on the bottom plate 524 . The inlet end of the dispensing valve 523 is connected to the glue supply mechanism of the glue dispenser, and the outlet end of the dispensing valve 523 is connected to the glue outlet nozzle 513 . Example

[0053] Please see Figures 1 to 2A method for applying structural glue to the outer surface of a unitized curtain wall panel adopts a glue machine, which includes a base 1, a glue supply mechanism, a workpiece clamping mechanism 9, a multi-axis driving mechanism, and a glue machine head 5. The multi-axis driving mechanism includes a movable column 2, a crossbeam 4, a lifting column 3 and a rotating motor 10. The lower end of the movable column 2 is slidably connected to the base 1, and the Y-axis driving mechanism drives the movable column 2 to slide along the Y-axis direction; the crossbeam 4 is connected to the upper end of the movable column 2; a slide is slidably connected to the crossbeam 4, and the X-axis driving mechanism drives the slide to slide along the X-axis direction; the lifting column 3 is slidably connected to the slide, and the Z-axis driving mechanism drives the lifting column 3 to slide along the Z-axis direction; the rotating motor 10 is arranged at the lower end of the lifting column 3, and a connecting seat 51 is arranged on the output shaft of the rotating motor 10, and the glue machine head 5 is connected to the connecting seat 51.

[0054] Specifically, the multi-axis drive mechanism in this embodiment adopts the structure of the invention No. 202220061168.3 of this applicant. A transverse (Y-axis) drive mechanism and a transverse guide pair are provided between the base 1 and the movable column 2. The transverse drive mechanism drives the movable column 2 and the crossbeam 4 to move left and right on the base 1. The linear guide of the transverse guide pair is installed on the base 1, and the slider is installed on the bottom plate 524 at the lower end of the movable column 2; a slide is provided on the crossbeam 4, and a longitudinal (X-axis) drive mechanism and a longitudinal guide pair are provided between the crossbeam 4 and the slide. The longitudinal drive mechanism drives the slide to move back and forth on the crossbeam 4, the linear guide of the longitudinal guide pair is installed on the crossbeam 4, and the slider is installed on the slide; a vertical (Z-axis) drive mechanism and a vertical guide pair are provided between the slide and the lifting column 3. The vertical drive mechanism drives the lifting column 3 to move vertically on the slide, the linear guide of the vertical guide pair is installed on the lifting column 3, and the slider is installed on the slide.

[0055] The transverse drive mechanism includes a transverse drive motor, a transverse drive gear, and a transverse rack. The transverse drive motor is fixed to the bottom plate 524 at the lower end of the mobile column 2, the transverse rack is fixed to the base 1, and the transverse drive gear is connected to the output shaft of the transverse drive motor and meshes with the transverse rack. The longitudinal drive mechanism includes a longitudinal drive motor, a longitudinal drive gear and a longitudinal rack. The longitudinal drive motor is fixed to the slide, the longitudinal rack is fixed to the crossbeam 4, and the longitudinal drive gear is connected to the output shaft of the longitudinal drive motor and meshes with the longitudinal rack. The vertical drive mechanism includes a vertical drive motor and a second ball screw. The vertical drive motor is fixed to the upper end of the lifting column 3 and connected to the upper end of the second ball screw. The nut of the second ball screw is connected to the slide. A first support base is provided on the lifting column 3, and the upper end of the ball screw is rotatably connected to the first support base via a bearing.

[0056] The rotating motor 10 is arranged at the lower end of the lifting column 3. Although it is not mentioned in the invention patent specification No. 202220061168.3, the "horizontal drive motor 30 and the longitudinal drive motor 19 of the multi-station cantilever glue machine are respectively operated to drive the glue machine head 3 to glue the inner side of the door and window 21 in the horizontal and longitudinal directions for one circle" (paragraph 51 of the specification), so the glue machine head needs to rotate. This is existing technology and will not be repeated here.

[0057] The glue dispenser head 5 adopts the floating glue dispenser head of the first embodiment; the glue supply mechanism adopts the conventional glue supply method in the prior art, which is connected to the glue dispensing valve 523 installed on the glue dispenser head base plate 524 via a rubber hose. The workpiece clamping mechanism 9 can use the door and window clamping device of the applicant's invention patent No. 202320356594.4 or the door and window clamping device of the applicant's invention patent No. 202121692370.8, both of which are prior art and will not be described in detail. Example

[0058] The method for applying the structural adhesive to the outer surface of the unitized curtain wall panel using the adhesive applying machine of the second embodiment includes the following steps (please refer to Figures 7 to 17 ): Take the workpiece of a unitized curtain wall panel with a length of 2000mm, a width of 1200mm, a gap of 6mm for glueing, and a depth of 15mm as an example: Prepare for work according to the size of the workpieces to be glued in this batch: S01: Adjust the vertical position of the glue nozzle 513: Loosen the locking bolt, turn the hand wheel 517-2, and adjust the position of the vertical support wheel up and down so that after the vertical support wheel is supported on the workpiece 6, the glue nozzle 513 is located at the center of the glue seam gap to be glued on the side of the workpiece 6; S02: Adjust the horizontal position of the glue nozzle 513: Loosen the locking nut 519 and rotate the adjusting screw 518 so that the horizontal support wheel 520 can be supported on the glass side of the workpiece 6; adjust the position of the adjusting screw 518 in the horizontal long hole on the horizontal support plate 57 so that the horizontal support wheel 520 is supported on the glass side of the workpiece 6, and the glue nozzle 513 enters the gap of the glue seam to be glued by 3 mm; S03: Adjust the initial position of the glue gun head 5 to above the middle of a side of the workpiece 6 to be glued, the longitudinal direction of which is parallel to the Y axis; Gluing work steps: S1: Initial state: Turn on the machine; the glue machine head 5 rises ( Figure 7 ); S2: transport the assembled unit curtain wall panels (hereinafter referred to as workpieces) to the gluing station ( Figure 1 ); S3: The workpiece clamping mechanism 9 positions and clamps the workpiece 6, and the two opposite sides of the workpiece 6 are parallel to the Y axis and the X axis respectively; S4: The Z-axis drive mechanism drives the glue head 5 to descend, and the vertical support wheel touches the glass on the workpiece 6 ( Figure 8 ), the vertical support wheels lift the front vertical plate 516, the horizontal support plate 57, and the slider 58-2 of the vertical guide rail pair to slide upward, and the slider 58-2 of the vertical guide rail pair triggers the first proximity switch 521, and the Z-axis drive mechanism stops driving; S5: The X-axis driving mechanism drives the glue gun head 5 to move forward, the horizontal support wheel 512-1 touches the glass side of the workpiece 6, and the trigger block 512-5 at the rear end of the probe rod 512-4 triggers the second proximity switch 522; the X-axis driving mechanism drives the glue gun head 5 to continue moving forward by a preset distance, the horizontal support wheel 520 touches the glass side of the workpiece 6, and the outlet end of the glue nozzle 513 enters the glue gap to be glued, and the X-axis driving mechanism stops driving ( Figure 9 ); S6: The Y-axis driving mechanism drives the glue head 5 to move along the Y-axis, starts the glue application process, and glues the first side edge of the workpiece 6. The vertical support wheel rolls along the upper surface of the workpiece 6 glass, the horizontal support wheel 520 rolls along the side of the workpiece 6 glass, and the edge finding device 512 automatically finds the edge ( Figure 10 ); S7: The Y-axis driving mechanism drives the glue gun head 5 to continue to move. When it approaches the first corner of the workpiece 6, the horizontal wheel 512-1 at the front end of the probe rod 512-4 of the edge-finding device 512 is separated from the workpiece 6 ( Figure 11 ), the trigger block 512-5 at the rear end of the probe rod 512-4 triggers the second proximity switch 522, and the control system 7 controls the Y-axis drive mechanism to drive the glue machine head 5 to continue moving forward by the preset distance of the program. When the glue nozzle 513 reaches the first corner of the workpiece 6, the Y-axis drive mechanism stops driving, the rear vertical support wheel 515 is supported on the workpiece 6, and the front vertical support wheel 514 is suspended ( Figure 12 ); S8: The rotating motor 10 drives the glue head 5 to rotate 90 degrees ( Figure 13 ), the front vertical support wheel 514 is supported on the workpiece 6, and the rear vertical support wheel 515 is suspended ( Figure 14 ); S9: The X-axis drive mechanism drives the glue head 5 to move along the X-axis, continuing the glue process to glue the second side of the workpiece 6 ( Figure 15 ); S10: The Y-axis driving mechanism, the X-axis driving mechanism, and the rotary motor 10 act alternately to drive the glue spraying head 5 to spray glue on the outer side of the workpiece 6 along the Y and X directions for one circle ( Figure 16 ), S11: After the glue is applied, the X-axis driving mechanism drives the glue head 5 to move backward, the horizontal support wheel 512-1 is separated from the glass side of the workpiece 6, and the trigger block 512-5 at the rear end of the probe rod 512-4 triggers the second proximity switch 522; the X-axis driving mechanism drives the glue head 5 to continue to move backward by a preset distance, the horizontal support wheel 520 is separated from the glass side of the workpiece 6, and at the same time, the outlet end of the glue nozzle 513 leaves the glue gap to be glued, and the X-axis driving mechanism stops driving ( Figure 9 ); S12: The Z-axis driving mechanism drives the glue spraying head 5 to rise and return to the initial position; S13: The conveying device 8 on the glue machine conveys the workpiece 6 to the next process; S14: transporting the next workpiece 6 to the workpiece clamping mechanism 9; S15: Repeat steps S3-S14 to glue the next workpiece 6.

[0059] In the description of the present invention, it should be noted that the terms "left", "right", "front", "back", "up", "down", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. The above terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0060] Unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, removable, or integral connections; they may refer to direct or indirect connections through an intermediary; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0061] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0062] The above-mentioned embodiments are only for the purpose of understanding the present invention and are not intended to limit the technical solutions described in the present invention. Ordinary technicians in the relevant fields can make various changes or modifications based on the technical solutions described in the claims. All equivalent changes or modifications should be included in the scope of protection of the claims of the present invention.

Claims

1. A method for applying structural adhesive to the outer surface of a unitized curtain wall panel, characterized by: The following steps are involved: S1: Initial state: glue machine is turned on; The glue machine head rises; The glue machine includes: a base, a glue supply mechanism, a workpiece clamping mechanism, and a multi-axis drive mechanism. The multi-axis drive mechanism includes a movable column, a crossbeam, a lifting column, and a rotary motor. The lower end of the movable column is slidably connected to the base, and the Y-axis drive mechanism drives the movable column to slide along the Y-axis direction; the crossbeam is connected to the upper end of the movable column; a slide is slidably connected to the crossbeam, and the X-axis drive mechanism drives the slide to slide along the X-axis direction; the lifting column is slidably connected to the slide, and the Z-axis drive mechanism drives the lifting column to slide along the Z-axis direction; the rotary motor is arranged at the lower end of the lifting column, and a connecting seat is arranged on the output shaft of the rotary motor, and the glue machine head is connected to the connecting seat; The glue dispenser head includes a connecting seat that can be connected to the driving terminal of the glue dispenser multi-axis driving mechanism, and a glue outlet connected to the glue supply mechanism. The glue outlet is connected to the connecting seat through a floating mechanism. S2: transport the assembled unitized curtain wall panels (hereinafter referred to as workpieces) to the gluing station; S3: The workpiece clamping mechanism positions and clamps the workpiece; S4: The Z-axis drive mechanism drives the glue gun head to descend, and the vertical support wheel touches the glass on the workpiece. The vertical support wheel lifts the front vertical plate, the horizontal support plate, and the slider of the vertical guide rail to slide upward. The slider of the vertical guide rail triggers the first proximity switch, and the Z-axis drive mechanism stops driving; S5: The X-axis drive mechanism drives the glue applicator head forward, the horizontal support wheel touches the workpiece, and the trigger block at the rear end of the probe triggers the second proximity switch; the X-axis drive mechanism drives the glue applicator head to continue moving forward by the preset distance, the horizontal support wheel touches the side of the glass on the workpiece, and the outlet end of the glue nozzle enters the glue gap to be glued, and the X-axis drive mechanism stops driving; S6: The Y-axis drive mechanism drives the glue gun head to move along the Y-axis, starts the glue application process, and glues the first side edge of the workpiece. The vertical support wheel rolls along the upper plane of the workpiece glass, the horizontal support wheel rolls along the side of the workpiece glass, and the edge-finding device automatically finds the edge. S7: The Y-axis drive mechanism drives the glue spraying machine head to continue moving. When it approaches the first corner of the workpiece, the horizontal wheel at the front end of the edge-finding device probe rod separates from the workpiece, and the trigger block at the rear end of the probe rod triggers the second proximity switch. The control system controls the Y-axis drive mechanism to drive the glue spraying machine head to continue moving forward a preset distance. When the glue nozzle reaches the first corner of the workpiece, the Y-axis drive mechanism stops driving, the rear vertical support wheel is supported on the workpiece, and the front vertical support wheel is suspended in the air. S8: The rotary motor drives the glue gun head to rotate 90 degrees, the front vertical support wheel is supported on the workpiece, and the rear vertical support wheel is suspended in the air; S9: The X-axis drive mechanism drives the glue gun head to move along the X-axis to continue the glue application process and glue the second side of the workpiece; S10: The Y-axis drive mechanism, X-axis drive mechanism, and rotary motor act alternately to drive the glue spraying head to spray glue on the outside of the workpiece along the Y and X directions for one circle; S11: After gluing is completed, the X-axis drive mechanism drives the glue applicator head to move backward, the horizontal support wheel separates from the workpiece, and the trigger block at the rear end of the probe triggers the second proximity switch; the X-axis drive mechanism drives the glue applicator head to continue moving backward by the preset distance, the horizontal support wheel separates from the side of the glass on the workpiece, and the outlet end of the glue nozzle leaves the glue gap to be glued, and the X-axis drive mechanism stops driving; S12: The Z-axis drive mechanism drives the glue gun head to rise and return to the initial position; S13: The conveying device on the glue machine conveys the workpiece to the next process; S14: transporting the next workpiece to the workpiece clamping mechanism; S15: Repeat steps S3-S14 to glue the next workpiece.

2. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 1, characterized in that: The floating mechanism includes a horizontal guide rail mounting plate, a horizontal guide rail pair, a vertical guide rail mounting plate, a vertical guide rail pair, and a neutral plate. The guide rails of the horizontal guide rail pair are arranged on the horizontal guide rail mounting plate, the vertical guide rail mounting plate is arranged on the slider of the horizontal guide rail pair, the guide rails of the vertical guide rail pair are arranged on the vertical guide rail mounting plate, the neutral plate is arranged on the slider of the vertical guide rail pair, and the glue nozzle is arranged on the neutral plate.

3. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 2, characterized in that: The floating mechanism is provided with a vertical support device and a horizontal support device. The vertical support device positions the glue outlet nozzle vertically, and the horizontal support device positions the glue outlet nozzle horizontally. The horizontal support device is located above the glue outlet nozzle.

4. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 3, characterized in that: The vertical support device includes a horizontal support plate, a front vertical plate, and a vertical support wheel. The rear end of the horizontal support plate is connected to the slider of the vertical guide rail pair, the front vertical plate is arranged at the front end of the horizontal support plate, and the vertical support wheel is arranged at the lower end of the front vertical plate. A vertical adjustment device is arranged between the front vertical plate and the horizontal support plate; the horizontal support device includes a horizontal support wheel and an adjusting screw. A horizontal long hole is provided on the horizontal support plate. After the adjusting screw passes through the horizontal long hole, the lower end is rotated to connect to the horizontal support wheel. Locking nuts are respectively provided on the adjusting screw and on the upper and lower sides of the horizontal support plate.

5. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 4, characterized in that: The two sides of the front vertical plate are respectively extended backward with side vertical plates, and the distance between the two side vertical plates corresponds to the width of the horizontal support plate, and the upper part of the front vertical plate is extended backward with a top plate, and the vertical adjustment device includes an adjusting screw, a vertical threaded hole is provided on the top plate, and a vertical through hole is provided on the horizontal support plate corresponding to the vertical threaded hole, a hand wheel is provided at the upper end of the adjusting screw, and the lower end of the adjusting screw is screwed into the vertical threaded hole and then passes through the vertical through hole, and a shaft retaining ring is respectively provided on the adjusting screw and on the upper and lower sides of the horizontal support plate; when the adjusting screw is rotated, the front vertical plate is driven to slide up and down along the side surface of the front end of the horizontal support plate, and a vertical long hole is provided on the front vertical plate, and a screw hole is provided on the front end surface of the horizontal support plate, and a locking bolt passes through the vertical long hole and is screwed into the screw hole to fix the front vertical plate to the horizontal support plate; The vertical support wheels include a front vertical support wheel and a rear vertical support wheel arranged front and back along the travel direction of the glue machine head; in the horizontal projection, the glue outlet is located between the front vertical support wheel and the rear vertical support wheel.

6. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 2, characterized in that: An edge-finding device is provided on the neutral plate in front of the glue outlet nozzle, including a probe rod, a flange-type linear bearing, and a horizontal support wheel. A vertical long hole is provided on the neutral plate, and the flange-type linear bearing is provided in the vertical long hole. The probe rod passes through the front end of the inner hole of the bearing and is connected to the horizontal support wheel. A second proximity switch is provided on the rear side surface of the neutral plate, and the trigger block of the second proximity switch is provided at the rear end of the probe rod. A compression spring is provided on the probe rod between the horizontal support wheel and the flange-type linear bearing.

7. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 2, characterized in that: A front limit block and a rear limit block are respectively provided on the front and rear ends of the guide rails of the horizontal guide rail pair on the horizontal guide rail mounting plate; an upper limit block and a lower limit block are respectively provided on the upper and lower ends of the guide rails of the vertical guide rail mounting plate on the vertical guide rail mounting plate; a horizontal tension spring is provided between the front limit block and the vertical guide rail mounting plate; a vertical tension spring is provided between the slider of the vertical guide rail pair and the upper part of the vertical guide rail mounting plate.

8. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 2, characterized in that: A first proximity switch is provided on the vertical guide rail mounting plate and located above the sliding block of the vertical guide rail pair.

9. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 1, characterized in that: The glue outlet nozzle is a flat structure, and the vertical dimension of the outlet end of the glue outlet nozzle is 1-2 mm smaller than the gap of the glue seam to be glued.

10. The method for applying structural adhesive to the outer surface of a unitized curtain wall panel according to claim 1, characterized in that: Before the step S1, there is also a step S0: S01: Adjust the vertical position of the glue nozzle: Loosen the locking bolt, turn the hand wheel, and adjust the position of the vertical support wheel up and down so that after the vertical support wheel is supported on the workpiece, the glue nozzle is located in the center of the glue seam gap on the side of the workpiece to be glued; S02: Adjust the horizontal position of the glue nozzle: Loosen the locking nut and rotate the adjusting screw so that the horizontal support wheel can be supported on the glass side of the workpiece; adjust the position of the adjusting screw in the horizontal long hole on the horizontal support plate so that after the horizontal support wheel is supported on the glass side of the workpiece, the glue nozzle can enter the gap of the glue seam to be glued.

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